PROTECTIVE SHEATH FOR EAR CANAL

A method of protecting an ear canal of a patient during a surgical procedure using a protective sheath includes forming the protective sheath using additive manufacturing based on a digital model of anatomy of the patient, where the protective sheath includes a passageway extending therethrough. The method may further include inserting the protective sheath into the patient so that the passageway extends at least partially within the ear canal of the patient. The method may further include inserting at least one instrument during the surgical procedure through the passageway of the protective sheath and into the middle ear of the patient. 1. A method of protecting an ear canal of a patient during a surgical procedure using a protective sheath , the method comprising:(a) forming the protective sheath using additive manufacturing based on a digital model of anatomy of the patient, wherein the protective sheath includes a passageway extending therethrough;(b) inserting the protective sheath into the patient so that the passageway extends at least partially within the ear canal of the patient; and(c) inserting at least one instrument during the surgical procedure through the passageway of the protective sheath and into the middle ear of the patient.2. The method of claim 1 , wherein forming the protective sheath further comprises custom fabricating the protective sheath for the specific surface topography of the ear canal of the patient.3. The method of claim 1 , wherein the protective sheath is not part of a hearing aid.4. The method of claim 1 , further comprising removing the protective sheath from the patient during the surgical procedure after removing the at least one instrument from the passageway.5. The method of claim 1 , further comprising protecting the ear canal using the protective sheath while inserting the at least one instrument through the passageway of the protective sheath.6. The method of claim 1 , wherein the protective sheath minimizes disturbances ...

METHOD FOR TREATING PATULOUS EUSTACHIAN TUBE

A method of treating a patulous Eustachian tube includes forming a first pocket in a wall of a nasopharynx region proximate to a pharyngeal ostium, inserting a resiliently biased implant within the first pocket, and allowing the resiliently biased implant to expand within the first pocket to thereby urge the Eustachian tube towards a closed state. The wire implant may include a resilient stent or other resilient wire structure. In some versions, a deployment device having a balloon is used to deploy a malleable implant. This deployment device has a malleable implant disposed around the balloon, which is disposed around a guide catheter. The balloon is inflated and expands the malleable implant. The malleable implant retains the expanded shape and urges the Eustachian tube toward a closed state. 1. A method of treating a patulous Eustachian tube , the method comprising:(a) forming a first pocket in a wall of a nasopharynx region proximate to a pharyngeal ostium;(b) inserting a resiliently biased implant within the first pocket; and(c) allowing the implant to expand within the first pocket to thereby urge the Eustachian tube toward a closed state.2. The method of claim 1 , wherein the implant comprises a wire structure.3. The method of claim 1 , wherein the implant comprises a stent.4. The method of claim 1 , further comprising:(a) inserting an endoscope through a nostril; and(b) providing visual guidance of the nasopharynx region with the endoscope.5. The method of claim 1 , further comprising:(a) inserting an endoscope through a patient's mouth; and(b) providing visual guidance of the nasopharynx region with the endoscope.6. The method of claim 1 , further comprising inserting a cutting device through a nostril and through a nasal cavity to position the cutting device proximate to the pharyngeal ostium claim 1 , wherein the act of forming the first pocket is performed using the cutting device.7. The method of claim 1 , further comprising inserting a cutting device ...

APPARATUS AND METHOD FOR POSTERIOR NASAL NERVE ABLATION

An ablation instrument includes a shaft that extends from a grip portion. A curved portion of the shaft is shaped to allow insertion into the head of a patient, and to position an ablation tip that extends from a distal tip of the shaft proximate to an ablation target, such as the posterior nasal nerve. When activated the ablation tip projects radiofrequency energy to ablate nearby tissue. An ablation assistance features of an image guided surgery navigation system is configured to segment and identify ablation targets within a set of pre-operative images. When a position tracked ablation instrument is configured for use, the system begins to monitor the proximity of the ablation tip to the ablation targets. When the tip is within an effective distance of the target for ablation, the system provides an alert and activates the instrument so that RF energy may be projected.

ENDOSCOPE WITH ANATOMY ELEVATION ASSEMBLY

An endoscope assembly includes a shaft assembly, an endoscopic camera assembly, and an anatomy elevation assembly. The shaft assembly includes a flexible outer shaft defining a lumen, a first electrical communication line, and a first fluid communication line. The endoscopic camera assembly is in communication with the first electrical communication line. The anatomy elevation assembly includes an inflatable member coupled to the flexible outer shaft. The inflatable member includes an interior surface. The first fluid communication line is in fluid communication with the inflatable member. The inflatable member is configured to transition between a deflated configuration and an inflated configuration. The interior surface is configured to define a viewing path distal to the endoscopic camera assembly while the inflatable member is in the inflated configuration. 1. An endoscope assembly , comprising: (i) a flexible outer shaft defining a lumen,', '(ii) a first electrical communication line, and', '(iii) a first fluid communication line;, '(a) a shaft assembly, wherein the shaft assembly comprises(b) an endoscopic camera assembly associated with the shaft assembly, wherein the endoscopic camera assembly is in communication with the first electrical communication line; and(c) an anatomy elevation assembly comprising an inflatable member coupled to the flexible outer shaft, wherein the inflatable member comprises an interior surface, wherein the first fluid communication line is in fluid communication with the inflatable member, wherein the inflatable member is configured to transition between a deflated configuration and an inflated configuration, wherein the interior surface is configured to define a viewing path distal to the endoscopic camera assembly while the inflatable member is in the inflated configuration.2. The endoscope assembly of claim 1 , wherein the fluid communication line extends at least partially within the lumen.3. The endoscope assembly of claim 1 ...

COMPUTERIZED TOMOGRAPHY (CT) IMAGE CORRECTION USING POSITION AND DIRECTION (P&D) TRACKING ASSISTED OPTICAL VISUALIZATION

A system () includes a medical probe () for insertion into a cavity of an organ, which includes a position and direction sensor () and a camera (), both operating in a sensor coordinate system (). The system further includes a processor () configured to: receive, from an imaging system () operating in an image coordinate system (), a three-dimensional image of the cavity including open space and tissue; receive, from the medical probe, signals indicating positions and respective directions of the medical probe inside the cavity; receive, from the camera, respective visualized locations inside the cavity; register the image coordinate system with the sensor coordinate system so as to identify one or more voxels in the image at the visualized locations, and when the identified voxels have density values in the received image that do not correspond to the open space, to update the density values of the identified voxels to correspond to the open space. 1. A system , comprising:a medical probe configured to be inserted into a cavity of an organ of a patient;a position and direction sensor in the medical probe operating in a sensor coordinate system;a camera in a distal edge of the medical probe operating in a sensor coordinate system; anda processor configured to:receive, from an imaging system operating in an image coordinate system, a three-dimensional image of the cavity comprising open space and organ tissue;receive, from the medical probe, signals indicating positions and respective directions of the distal edge of the medical probe inside the cavity;receive, from the camera of the probe, respective visualized locations inside the cavity;register the image coordinate system with the sensor coordinate system so as to identify one or more voxels in the three-dimensional image at the visualized locations; andwhen the identified voxels have density values in the received three-dimensional image that do not correspond to the open space, to update the density values of ...

COUPLING ASSEMBLY FOR VARIABLE DIAMETER SURGICAL INSTRUMENT

An apparatus may be used with an elongate member that includes an engagement member, a hollow shaft, a compression member, a compression element, and a resilient gripping member. The hollow shaft extends from the engagement member along a longitudinal axis. The compression member is slidably disposed over the hollow shaft. The hollow shaft is disposed over the resilient gripping member and supports the compression element. The compression member has a conical inner surface including a detent feature. The conical inner surface is configured to urge the compression element radially inwards as the collar advances from the unlocked position toward the locked position where the detent feature retains the compression element. The compression element deforms the resilient gripping member radially inwards to grip the elongate member and prevents translation of the elongate member. When unlocked, the resilient gripping member moves radially away from the elongate member allowing translation. 1. An apparatus for use with an elongate member , the apparatus comprising:(a) an engagement member;(b) a hollow shaft extending from the engagement member along a longitudinal axis;(c) a compression element supported by the hollow shaft, wherein the compression element is radially movable relative to the hollow shaft;(d) a resilient gripping member disposed within the hollow shaft, wherein the resilient gripping member is configured to slidably receive the elongate member therethrough along the longitudinal axis, wherein the compression element is positioned to confront a radially outer surface of the resilient gripping member; and(e) a compression member slidably disposed over the hollow shaft, includes an inner surface configured to engage the compression element as the compression member advances from the unlocked position toward the locked position, wherein the inner surface has a plurality of detent features configured to engage the compression element in the locked position with ...

DILATION INSTRUMENT WITH MALLEABLE GUIDE AND DILATION CATHETER WITH INTEGRAL POSITION SENSOR

An apparatus includes a handle assembly, a guide tube, and a dilation catheter. The guide tube extends distally from the handle assembly. At least a distal portion of the guide tube is malleable. The dilation catheter is slidably positioned in the guide tube. The dilation catheter includes a distal end, a dilator, and a position sensor. The position sensor is configured to generate a signal indicating a position of the position sensor in three-dimensional space. The dilation catheter is configured to translate relative to the guide tube. 1. An apparatus comprising:(a) a handle assembly;(b) a guide tube extending distally from the handle assembly, wherein at least a distal portion of the guide tube is malleable; and (i) a distal end,', '(ii) a dilator, and', '(iii) a position sensor, wherein the position sensor is configured to generate a signal indicating a position of the position sensor in three-dimensional space,', 'wherein the dilation catheter is configured to translate relative to the guide tube., '(c) a dilation catheter slidably positioned in the guide tube, wherein the dilation catheter includes2. The apparatus of claim 1 , wherein the handle assembly includes an inflation port claim 1 , wherein the inflation port is configured to couple the dilator with an external fluid source.3. The apparatus of claim 2 , further comprising a fluid source in fluid communication with the inflation port claim 2 , wherein the dilator is configured to receive fluid from the fluid source to thereby transition from a non-expanded state to an expanded state.4. The apparatus of claim 1 , wherein the handle assembly further includes a data port claim 1 , wherein the data port is configured to couple the position sensor with an external image guided surgery system.5. The apparatus of claim 4 , wherein the data port comprises a cable port claim 4 , wherein the data port is configured to couple the position sensor with an external image guided surgery system via a cable.6. The ...

TURBINATE REDUCTION INSTRUMENT

A surgical instrument includes a handle assembly and a shaft assembly extending distally from the handle assembly and having a distal end sized to be inserted into the nasal cavity of a patient. The shaft assembly includes a cutting member configured to cut tissue within the nasal cavity, and a translating member slidably disposed over the cutting member. A navigation sensor is disposed within the distal end of the shaft assembly and is operable to generate a signal corresponding to a position of the distal end within the patient. 1. A surgical instrument comprising:(a) a handle assembly; (i) a cutting member configured to cut tissue within the nasal cavity, and', '(ii) a translating member slidably disposed over the cutting member; and, '(b) a shaft assembly extending distally from the handle assembly and having a distal end sized to be inserted into the nasal cavity of a patient, wherein the shaft assembly includes(c) a navigation sensor disposed within the distal end of the shaft assembly, wherein the navigation sensor is operable to generate a signal corresponding to a position of the distal end within the patient.2. The surgical instrument of claim 1 , wherein the navigation sensor includes an electromagnetic coil.3. The surgical instrument of claim 1 , wherein the navigation sensor is housed within the cutting member.4. The surgical instrument of claim 1 , wherein the shaft assembly includes a shaft and a cylindrical core extending axially within a bore of the shaft claim 1 , wherein the cutting member is rigidly coupled with a distal end of the shaft claim 1 , wherein the navigation sensor is housed within a distal end of the cylindrical core.5. The surgical instrument of claim 4 , wherein the shaft is rotatable about the cylindrical core relative to the handle assembly claim 4 , wherein the translating member is slidably disposed over the shaft and is configured to translate longitudinally relative to the handle assembly.6. The surgical instrument of claim 5 ...

LOW PROFILE ENT PROBE WITH DISTAL SHAFT LENGTH AND RIGIDITY ADJUSTMENT

An apparatus includes a handle, an elongate shaft assembly, an adjustment feature, and a position sensor. The shaft assembly includes an outer tube and an inner shaft. The outer tube is slidably disposed within an elongate body of the handle. The outer tube extends distally from the elongate body to an outer tube distal end. The inner shaft is coaxially disposed within the outer tube and extends distally through the outer tube end to an inner shaft distal tip. The inner shaft is sized and configured to pass through passageways within an ear, nose, or throat of a patient. The adjustment feature is slidably disposed relative to the body of the handle and is configured to translate at least the outer tube relative to the handle. The position sensor is configured to generate signals indicating a real-time position of the distal tip of the inner shaft. 1. An apparatus , comprising:(a) a handle including an elongate body; (i) an outer tube slidably disposed within the elongate body, the outer tube extending distally from the elongate body to an outer tube distal end, and', '(ii) an inner shaft coaxially disposed within the outer tube, the inner shaft extending distally through the outer tube distal end to an inner shaft distal tip, the inner shaft being sized and configured to pass through passageways within an ear, nose, or throat of a patient;, '(b) an elongate shaft assembly, the elongate shaft assembly including(c) an adjustment feature slidably disposed relative to the elongate body of the handle and configured to translate at least the outer tube relative to the handle and thereby adjust one or more characteristics of the elongate shaft assembly; and(d) a position sensor configured to generate signals indicating a real-time position of the inner shaft distal tip.2. The apparatus of claim 1 , wherein the outer tube is rigid claim 1 , and the inner shaft is flexible.3. The apparatus of claim 2 , wherein the one or more characteristics includes a rigidity of the ...

Tissue shaving instrument with navigation sensor

A surgical instrument and method of tracking the surgical instrument includes a shaft, a cutting member, and navigation system. The shaft has a shaft lumen, a shaft window, and a shaft edge. The cutting member is disposed within the shaft lumen and is configured to cyclically move from a first position to a second position relative to the shaft. The cutting member includes a cutting window opening, a cutting edge, and a suction lumen to cut the tissue portion with the cutting member in the first position. The navigation system includes a navigation sensor positioned on at least one of the shaft or the cutting member that is configured to be tracked within a patient for identifying a positional movement of the shaft or the cutting member within the patient.

SINUS DILATION CATHETER WITH ULTRASONIC IMAGING FEATURE

A dilation instrument and method of imaging an anatomy within a patient includes a dilation catheter having a catheter body, a fluid conduit extending along the catheter body, a dilator, and at least one ultrasonic transducer. The catheter body is configured to distally extend from an instrument body and move relative to the instrument body. The dilator is connected to the catheter body in fluid communication with the fluid conduit and configured to receive a fluid from the fluid conduit and thereby inflate from a contracted state to an expanded state. The at least one ultrasonic transducer positioned on the catheter body and configured to electrically connect to an ultrasonic generator. The at least one ultrasonic transducer is configured to emit a source ultrasonic signal toward an anatomy within a patient for producing a diagnostic or a therapeutic effect. 1. A dilation instrument , comprising: (i) a catheter body configured to distally extend from an instrument body and move relative to the instrument body,', '(ii) a fluid conduit extending along the catheter body,', '(iii) a dilator connected to the catheter body and in fluid communication with the fluid conduit, wherein the dilator is configured to receive a fluid from the fluid conduit and thereby inflate from a contracted state to an expanded state, and', '(iv) at least one ultrasonic transducer positioned on the catheter body and configured to electrically connect to an ultrasonic generator,', 'wherein the at least one ultrasonic transducer is configured to emit a source ultrasonic signal toward an anatomy within a patient for producing a diagnostic or a therapeutic effect., '(a) a dilation catheter, including2. The dilation instrument of claim 1 , wherein the at least one ultrasonic transducer comprises an array of ultrasonic transducers.3. The dilation instrument of claim 2 , wherein the plurality of ultrasonic transducers includes a linear phased array of ultrasonic transducers.4. The dilation instrument ...

TISSUE SHAVING INSTRUMENT WITH NAVIGATION SENSOR

A surgical instrument and method of tracking the surgical instrument includes a shaft, a cutting member, and navigation system. The shaft has a shaft lumen, a shaft window, and a shaft edge. The cutting member is disposed within the shaft lumen and is configured to cyclically move from a first position to a second position relative to the shaft. The cutting member includes a cutting window opening, a cutting edge, and a suction lumen to cut the tissue portion with the cutting member in the first position. The navigation system includes a navigation sensor positioned on at least one of the shaft or the cutting member that is configured to be tracked within a patient for identifying a positional movement of the shaft or the cutting member within the patient. 1. A surgical instrument , comprising: (i) a shaft lumen extending along the longitudinal axis,', '(ii) a shaft window opening in fluid communication with an environment and the shaft lumen and configured to receive tissue therein from the environment, and', '(iii) a shaft edge at least partially surrounding the shaft window opening;, '(a) a shaft extending along a longitudinal axis and including (i) a cutting window opening in fluid communication with the shaft window opening in the first position and configured to receive the tissue therein,', '(ii) a cutting edge at least partially surrounding the cutting window opening and configured to be cyclically moved within the shaft lumen adjacent to the shaft edge for cutting a tissue portion from the tissue between the cutting edge and the shaft edge, and', '(iii) a suction lumen extending along the longitudinal axis in fluid communication with the cutting window opening and configured to connect to a vacuum source, wherein the suction lumen is in fluid communication with the cutting window opening and the shaft window opening in the first position; and, '(b) a cutting member disposed within the shaft lumen and configured to cyclically move from a first position to a ...

FORCE MEASUREMENT INSTRUMENT FOR SINUPLASTY PROCEDURE

A dilation instrument and method dilating an ostium includes a body, a guidewire, a dilation catheter, and a force measurement system. The guidewire is operatively connected to the body to body relative thereto. The dilation catheter has an expandable dilator operatively connected to the body and is configured to movably receive the guidewire therein for guiding movement of the expandable dilator along the guidewire. The guide member extends distally from the body along a longitudinal axis and is configured to guide movement of the expandable dilator and the guidewire. The force measurement system is operatively connected to the guide member and is configured to measure a force received against the guide member for monitoring engagement with an anatomy of a patient for dilating the ostium along a passageway within the patient. 1. A dilation instrument , comprising:(a) a body;(b) a guidewire operatively connected to the body and configured to move relative to the body;(c) a dilation catheter having an expandable dilator operatively connected to the body and configured to move relative to the body, wherein the dilation catheter is configured to movably receive the guidewire therein for guiding movement of the expandable dilator along the guidewire;(d) a guide member extending distally from the body along a longitudinal axis, wherein the guidewire and the dilation catheter are configured to translate relative to the guide member, wherein the guide member is configured to guide the guidewire and the dilation catheter as the guidewire and the guidewire translate relative to the guide member; and(e) a force measurement system operatively connected to the guide member and configured to measure a force received against the guide member for monitoring engagement with an anatomy of a patient.2. The dilation instrument of claim 1 , wherein the force measurement system is configured to measure a longitudinal force component of the force claim 1 , and wherein the longitudinal ...

DILATION INSTRUMENT WITH PROXIMALLY LOCATED FORCE SENSOR

An apparatus includes a body, a guide member, an elongate translating member, an actuator, and a force measuring feature. The guide member is coupled to and extends distally from the body, and defines a longitudinal axis. The elongate translating member is operatively coupled with the body and is slidably disposed relative to the guide member. The elongate translating member is configured to translate relative to the body between a retracted position and an extended position for accessing an anatomical passageway. The actuator is coupled to the elongate translating member, and is selectively movable relative to the body to actuate the elongate translating member between the retracted and extended positions. The force measuring feature is operatively coupled with the actuator, and is configured to detect and measure an axial force exerted on the elongate translating member by the actuator when the elongate translating member moves between the retracted and extended positions. 1. An apparatus comprising:(a) a body;(b) a guide member coupled to and extending distally from the body, wherein the guide member defines a longitudinal axis;(c) an elongate translating member operatively coupled with the body and slidably disposed relative to the guide member, wherein the elongate translating member is configured to translate relative to the body between a retracted position and an extended position for accessing an anatomical passageway;(d) an actuator coupled to the elongate translating member, wherein the actuator is selectively movable relative to the body to actuate the elongate translating member between the retracted and extended positions; and(e) a force measuring feature operatively coupled with the actuator, wherein the force measuring feature is configured to detect and measure an axial force exerted on the elongate translating member by the actuator when the elongate translating member moves between the retracted and extended positions.2. The apparatus of claim 1 , ...

FORCE MEASUREMENT INSTRUMENT FOR SINUPLASTY PROCEDURE

A dilation instrument includes a body, a dilation catheter, a guide member, and a force sensor. The dilation catheter has an expandable dilator. The guide member extends distally from the body and is configured to guide movement of the expandable dilator. The force sensor is operatively connected to the guide member and is configured to sense a force imparted against the guide member for monitoring engagement with an anatomy of a patient. 1. A dilation instrument , comprising:(a) a body;(b) a dilation catheter having an expandable dilator, the dilation catheter being configured to move relative to the body;(c) a guide member extending distally from the body, wherein the dilation catheter is configured to translate relative to the guide member, wherein the guide member is configured to guide the dilation catheter as the dilation catheter translates relative to the guide member; and(d) a force sensor operatively connected to the guide member and configured to sense a force imparted against a distal end of the guide member for monitoring engagement with an anatomy of a patient.2. The dilation instrument of claim 1 , wherein the force sensor is configured to measure a longitudinal force component of force oriented along a longitudinal axis of the guide member.3. The dilation instrument of claim 1 , wherein the force sensor is positioned at a proximal portion of the guide member.4. The dilation instrument of claim 1 , wherein the force sensor is configured to measure a transverse force component of the force oriented along a path that is transverse to a longitudinal axis of the guide member.5. The dilation instrument of claim 1 , wherein the force sensor is coaxially positioned relative to the guide member.6. The dilation instrument of claim 1 , wherein the force sensor is configured to measure a torque associated with the force oriented along a path that is angular about a longitudinal axis of the guide member.7. The dilation instrument of claim 1 , wherein the force ...

INSTRUMENT WITH INTEGRAL IMAGING AND IRRIGATION FEATURES

A surgical instrument and related method includes an instrument body, a guide shaft distally projecting from the instrument body, and a first surgical tool. The guide shaft has a guide sidewall, a guide lumen, and a clearance opening radially extending through the guide sidewall in communication with the guide lumen. The first surgical tool has an elongate body and a distal head configured to deflect relative to the elongate body from a first position to a second position. The distal head in the first position is positioned within the guide lumen along the central axis. The distal head in the second position is deflected from the central axis and extends at least partially through the clearance opening thereby vacating at least a portion of the guide lumen for introducing a second surgical tool through the guide lumen. 1. A surgical instrument , comprising:(a) an instrument body; (i) a guide sidewall surrounding the central axis,', '(ii) a guide lumen defined by the guide sidewall, and', '(iii) a clearance opening radially extending through the guide sidewall in communication with the guide lumen; and, '(b) a guide shaft distally projecting from the instrument body along a central axis, including (i) an elongate body at least partially positioned within the guide lumen, and', '(ii) a distal head extending from the elongate body proximate to the clearance opening, wherein the distal head is configured to deflect relative to the elongate body from a first position to a second position,', 'wherein the distal head in the first position is positioned within the guide lumen along the central axis, and', 'wherein the distal head in the second position is deflected from the central axis and extends at least partially through the clearance opening thereby vacating at least a portion of the guide lumen for introducing a second surgical tool through the guide lumen., '(c) a first surgical tool, including2. The surgical instrument of claim 1 , wherein the elongate body defines ...

Nasal suction instrument with interchangeable tip insert

A suction instrument includes a proximal end, a distal end configured to be positioned within or adjacent to an anatomical passageway of a patient, and a suction lumen extending between the proximal and distal ends. The suction lumen is configured to provide suction at the distal end. A navigation sensor is disposed along a portion of the suction lumen and is operable to generate an electrical signal corresponding to a location of the portion within the patient. A coupling feature is disposed at the proximal end and is configured to releasably couple the proximal end with a body.

METHOD OF FORMING SUCTION INSTRUMENT END AND SHAVER INSTRUMENT END

A method is used to manufacture a surgical instrument including a first tube, and a second tube. The first tube extends from a proximal first end portion to a distal first end portion. The second tube extends from a proximal second end portion to a distal second end portion. The second tube is positioned coaxially within the first tube with the distal second end portion positioned adjacent to the distal first end portion. The second tube defines a lumen. The sensor is secured proximal to the distal second end portion of the second tube. A die is engaged against a distal first end portion of the first tube while first tube rotates about its own longitudinal axis; and the die is simultaneously moved relative to the distal first end portion of the first tube along a predetermined path to form a predetermined shape. 1. A method of manufacturing a surgical instrument , wherein the surgical instrument includes a shaft assembly having a first tube and a second tube , wherein the first tube extends from a proximal first end portion to a distal first end portion , wherein the second tube extends from a proximal second end portion to a distal second end portion and is positioned coaxially within the first tube such that the distal second end portion is positioned adjacent to the distal first end portion , wherein the second tube further includes an opening positioned at or near the distal second end portion and defines a lumen extending from the proximal second end portion to the distal second end portion in communication with the opening , the method comprising:(a) engaging a die against the distal first end portion of the first tube while simultaneously moving the die relative to the distal first end portion of the first tube along a predetermined path to thereby forming the distal first end portion with a predetermined shape to thereby manufacture at least a distal portion of the surgical instrument.2. The method of claim 1 , further comprising heating the distal first end ...

APPARATUS AND METHOD FOR REGISTERING FACIAL LANDMARKS FOR SURGICAL NAVIGATION SYSTEM

An array of sensors may be used to perform touchless registration of landmarks of a patient's face before an ENT procedure in order to associate those landmarks with pre-operative images in three-dimensional space, which is required for image guided surgery features such as navigation. Touchless or light-touch registration may improve accuracy by avoiding the need for substantial pressing against a patient's skin, which may deform and thereby introduce erroneous registration data. A sensor may also be implemented in forms other than an array such as handheld probe having a single sensor as opposed to an array. 1. A system for registration of a target area , the system comprising:(a) a sensor array body;(b) a plurality of distance sensors attached to the sensor array body, wherein each of the distance sensors is positioned to be aimed towards the target area and is operable to determine a distance between a registration point of the target area and that sensor;(c) a position sensor attached to the sensor array body and operable to provide a position and an orientation of the sensor array body; and(d) at least one processor, wherein the at least one processor is configured to determine the three-dimensional location of a plurality of registered points of the target area within a procedure space based upon the distance, the orientation, and the position for each of the distance sensors.2. The system of claim 1 , wherein the distance sensors are arranged in a shape selected from the group consisting of a rectangle claim 1 , a square claim 1 , a circle claim 1 , a triangle claim 1 , and an ellipse.3. The system of claim 1 , wherein a face of the sensor array body is substantially flat claim 1 , and wherein the at least one processor is contained within the sensor array body.4. The system of claim 1 , wherein the distance sensors comprise a type selected from the group consisting of an optical sensor claim 1 , an ultrasonic sensor claim 1 , and a magnetic sensor.5. The ...

POSTERIOR NASAL PACKING WITH INTEGRATED SENSOR AS PATIENT TRACKER

An apparatus includes an occlusion device operable to fit securely in an anatomical passageway within a head of a human. The occlusion device is configured to move unitarily with the head when the occlusion device is installed in the anatomical passageway. The occlusion device is further configured to prevent passage of fluid through the anatomical passageway when the occlusion device is installed in the anatomical passageway. A position sensor is fixedly integrated into the occlusion device. The position sensor generates signals indicating a position of the occlusion device in three-dimensional space, thereby indicating the position of the head in three-dimensional space. A connector communicatively coupled to the position sensor is operable to receive and transmit the signals generated by the position sensor. 1. An apparatus comprising:(a) an occlusion device configured to fit securely in an anatomical passageway within a head of a human, wherein the occlusion device is configured to move unitarily with the head when the occlusion device is installed in the anatomical passageway, wherein the occlusion device is further configured to prevent passage of fluid through the anatomical passageway when the occlusion device is installed in the anatomical passageway;(b) a position sensor fixedly secured on the occlusion device, wherein the position sensor is configured to generate signals indicating a position of the occlusion in three-dimensional space;(c) a conduit extending proximally from the occlusion device, wherein the conduit includes a first lumen in fluid communication with the occlusion device; and(d) a connector communicatively coupled to the position sensor, wherein the connector is configured to receive and transmit the signals generated by the position sensor.2. The apparatus of claim 1 , wherein the occlusion device comprises a posterior nasal pack.3. The apparatus of claim 2 , wherein the posterior nasal pack comprises an absorbent member.4. The apparatus ...

SURGICAL SYSTEM WITH COMBINATION OF SENSOR-BASED NAVIGATION AND ENDOSCOPY

A set of pre-operative images may be captured of an anatomical structure using an endoscopic camera. Each captured image is associated with a position and orientation of the camera at the moment of capture using image guided surgery (IGS) techniques. This image data and position data may be used to create a navigation map of captured images. During a surgical procedure on the anatomical structure, a real-time endoscopic view may be captured and displayed to a surgeon. The IGS navigation system may determine the position and orientation of the real-time image; and select an appropriate pre-operative image from the navigation map to display to the surgeon in addition to the real-time image. 1. An image guided surgery (IGS) navigation system comprising:(a) an endoscope comprising a camera and a tracking sensor, wherein the tracking sensor is configured to interact with a tracked area;(b) a processor configured to track the camera based upon an interaction of the tracking sensor with the tracked area; and(c) a display; (i) receive a past image of a surgical site of a patient, wherein the past image is captured by the camera at a first time,', '(ii) determine a set of past image tracking data for the camera at the first time,', (A) an image of the surgical site captured from a perspective, and', '(B) a set of tracking data associated with the perspective,, '(iii) add the past image and the set of past image tracking data to an image map as a past perspective, wherein the image map comprises a plurality of past perspectives of the surgical site, and each past perspective of the plurality of past perspectives comprises, '(iv) receive an operative image of the surgical site, wherein the operative image is captured by the camera at a second time,', '(v) determine a set of live image tracking data for the camera at the second time,', '(vi) determine a matching perspective of the plurality of past perspectives based on the set of live image tracking data and the set of ...

MEDICAL INSTRUMENT WITH INTEGRAL NAVIGATION CONTROL FEATURES

Variations of integral navigation controls may be used in conjunction with a medical instrument to provide navigation functions for an image guided surgery (IGS) system that is in communication with the integral navigation controls. In some variations, a medical instrument with integrated navigation wheels allows movement of a cursor of the IGS system along the x and y axis by scrolling the wheel, or allows selection, zooming, or other controls by combined clicking and/or scrolling of wheels, and may be sterilized or discarded along with the device. In some other variations, a control overlay may be temporarily attached to the medical instrument to provide additional controls, such as buttons or a pointing stick, and then removed and sterilized or discarded after a procedure. In each variation, inputs may be communicated via wire or wirelessly to an IGS system to provide navigation of images during a surgical procedure. 1. A medical device comprising:(a) a medical procedure feature, wherein the medical procedure feature is configured to interact with an anatomical structure of a patient;(b) a handle body adapted to be gripped by a user, wherein the medical procedure feature is distal to the handle body;(c) an integration module comprising a control interface and a processor;(d) a set of controls positioned on the handle body and configured to provide inputs to the control interface when the set of controls are interacted with by the user; and(e) a communication device that is operable to communicate with an image guided surgery (IGS) navigation system; (i) receive a set of inputs via the control interface, wherein the set of inputs describes a combination and pattern of user interactions with the set of controls;', '(ii) identify an input based on the set of inputs, and determine whether the input is a device input or a navigation input;', '(iii) where the input is a device input, modify the operation of the medical procedure feature; and', '(iv) where the input is ...

3d scanning of nasal tract with deflectable endoscope

An apparatus includes a shaft, an imaging head, and a processor. The shaft includes a distal end sized to fit through a human nostril into a human nasal cavity. The imaging head includes an image sensor assembly, a plurality of light sources, and a plurality of collimators. At least some of the light sources are positioned adjacent to the image sensor assembly. Each collimator is positioned over a corresponding light source of the plurality of light sources. The processor is configured to activate the light sources in a predetermined sequence. The image sensor assembly is configured to capture images of a surface illuminated by the light sources as the light sources are activated in the predetermined sequence.

MEDICAL INSTRUMENT WITH INTEGRAL NAVIGATION CONTROL FEATURES

Variations of integral navigation controls may be used in conjunction with a medical instrument to provide navigation functions for an image guided surgery (IGS) system that is in communication with the integral navigation controls. In some variations, a medical instrument with integrated navigation wheels allows movement of a cursor of the IGS system along the x and y axis by scrolling the wheel, or allows selection, zooming, or other controls by combined clicking and/or scrolling of wheels, and may be sterilized or discarded along with the device. In some other variations, a control overlay may be temporarily attached to the medical instrument to provide additional controls, such as buttons or a pointing stick, and then removed and sterilized or discarded after a procedure. In each variation, inputs may be communicated via wire or wirelessly to an IGS system to provide navigation of images during a surgical procedure. 1. A medical device comprising:(a) a medical procedure feature, wherein the medical procedure feature is configured to interact with an anatomical structure of a patient;(b) a handle body adapted to be gripped by a user, wherein the medical procedure feature is distal to the handle body;(c) a set of controls positioned on the handle body and configured to provide inputs to an input controller when the set of controls are interacted with by the user; and(d) a communication module that is operable to communicate with an image guided surgery (IGS) navigation system;wherein the input controller is configured to receive a set of inputs from the set of controls and provide the set of inputs to the IGS navigation system; andwherein the set of inputs is configured to cause the IGS navigation system to modify the perspective of an IGS application running on the IGS navigation system.2. The medical device of claim 1 , wherein the set of controls comprises a first navigation wheel and a second navigation wheel claim 1 , wherein the first navigation wheel is ...

Endoscope with dual image sensors

An endoscopic camera has two or more cameras positioned at a distal end, positioned to provide partially overlapping fields of view. The cameras communicate captured digital images the length of the flexible endoscope, where they may be saved and processed to provide additional imaging features. With partially overlapping images from two or more cameras, image processing can provide panoramic images, super resolution images, and three-dimensional images. One or more of these image modes may also be enhanced to provide a virtualization window that displays a portion of a larger or higher resolution image. The virtualization window displays the selected area of the image, and may be moved or zoomed around the image to provide a virtual endoscope repositioning experience, where the endoscope remains statically positioned but the virtualization window presents a sense of movement and navigation around the surgical area.

REGISTRATION OF FRAMES OF REFERENCE

Apparatus, including a patient tracker, attached to a subject, having magnetic field sensors and optical landmarks with known spatial relationships to each other. A camera acquires a 3D optical image, in a first frame of reference (FOR), of the subject's face. A magnetic radiator assembly generates magnetic fields at the subject's head, thereby defining a second FOR. A processor: processes field sensor signals to acquire location coordinates of the sensors in the second FOR; segments a tomographic image of the subject, having a third FOR, to identify the subject's face in the third FOR; computes a first transformation between the third and first FORs to map the tomographic face image to the 3D optical image; maps the optical landmarks to the third FOR; maps the respective location coordinates of the sensors to the first FOR; and computes a second transformation between the second FOR and the third FOR. 1. Apparatus , comprising:a patient tracker, which is configured to be attached to a head of a subject and comprises one or more magnetic field sensors;a plurality of optical landmarks having respective known spatial relationships to the one or more magnetic field sensors;a camera configured to acquire a three-dimensional (3D) optical image, in a first frame of reference, of a face of the subject with the patient tracker attached to the head;a magnetic radiator assembly, which generates one or more magnetic fields in a vicinity of the head of the subject, thereby defining a second frame of reference; and receive and process signals output by the one or more magnetic field sensors in response to the one or more magnetic fields so as to acquire respective location coordinates of the magnetic field sensors in the second frame of reference,', 'segment a tomographic image of the subject, having a third frame of reference, so as to identify the face of the subject in the third frame of reference,', 'compute a first transformation between the third frame of reference and the ...

Medical Instrument with Self-Collapsing Channel

An apparatus includes a cannula, a suction port, and a guidewire channel. The cannula includes a proximal end, a distal end, and a first lumen. The suction port is configured to communicate suction to the distal end of the cannula via the first lumen. The guidewire channel includes an open proximal end, an open distal end, and a second lumen extending from the open proximal end to the open distal end. The guidewire channel is securely attached to the cannula such that the second lumen is laterally offset from the first lumen. The guidewire channel is configured to slidably receive a guidewire within the second lumen. The guidewire channel is formed of an elastic material such that the guidewire channel is configured to resiliently expand the second lumen outwardly to an expanded state in response to slidably receiving a guidewire therein. 1. An apparatus comprising: (i) a proximal end,', '(ii) a distal end, and', '(iii) a first lumen extending from the proximal end to the distal end;, '(a) a cannula including(b) a suction port that is configured to communicate suction to the distal end of the cannula via the first lumen; and (i) an open proximal end,', '(ii) an open distal end, and', '(iii) a second lumen extending from the open proximal end to the open distal end, wherein the guidewire channel is securely attached to the cannula such that the second lumen is laterally offset from the first lumen, wherein the guidewire channel is configured to slidably receive a guidewire within the second lumen, wherein the guidewire channel is formed of an elastic material such that the guidewire channel is configured to resiliently expand the second lumen outwardly to an expanded state in response to slidably receiving a guidewire therein., '(c) a guidewire channel including2. The apparatus of claim 1 , wherein the guidewire channel is resiliently biased toward an inwardly contracted state.3. The apparatus of claim 2 , wherein the second lumen is configured to have a smaller ...

INSTRUMENT FOR ENDOSCOPIC POSTERIOR NASAL NERVE ABLATION

A surgical instrument includes an elongate shaft having a proximal shaft portion and a malleable distal shaft portion. The elongate shaft is configured to be secured to a supporting surgical instrument. An ablation head is coupled to the malleable distal shaft portion and includes at least one electrode operable to deliver RF energy to tissue for ablating the tissue. The ablation head is sized to fit within the nasal cavity of a patient with a distal end of the supporting surgical instrument. The proximal shaft portion is configured to operatively couple with an RF energy source operable to energize the at least one electrode with RF energy. The malleable distal shaft portion is configured to bend relative to a longitudinal shaft axis defined by the proximal shaft portion for selectively orienting the ablation head relative to the longitudinal shaft axis. 1. A surgical instrument comprising:(a) an elongate shaft having a proximal shaft portion and a malleable distal shaft portion, wherein the elongate shaft is configured to be secured to a supporting surgical instrument; and(b) an ablation head coupled to the malleable distal shaft portion, wherein the ablation head includes at least one electrode operable to deliver RF energy to tissue for ablating the tissue, wherein the ablation head is sized to fit within the nasal cavity of a patient with a distal end of the supporting surgical instrument,wherein the proximal shaft portion is configured to operatively couple with an RF energy source operable to energize the at least one electrode with RF energy,wherein the malleable distal shaft portion is configured to bend relative to a longitudinal shaft axis defined by the proximal shaft portion for selectively orienting the ablation head relative to the longitudinal shaft axis.2. The surgical instrument of claim 1 , wherein the at least one electrode comprises first and second electrodes operable to deliver bipolar RF energy to tissue.3. The surgical instrument of claim 1 ...

NAVIGATION SLEEVE FOR MEDICAL INSTRUMENT

An apparatus includes a cylindraceous sleeve body, a navigation sensor, and an interface feature. The cylindraceous sleeve body includes an open proximal end, an open distal end, and a lumen extending from the open proximal end to the open distal end. The lumen is sized and configured to receive a shaft of a medical instrument. The navigation sensor is positioned at the open distal end of the cylindraceous sleeve body. The interface feature is configured to couple the navigation sensor with an image guidance system. The navigation sensor is configured to cooperate with an image guidance system to provide feedback indicating a position of the navigation sensor in three-dimensional space. 1. An apparatus , comprising: (i) an open proximal end,', '(ii) an open distal end, and', '(iii) a lumen extending from the open proximal end to the open distal end, wherein the lumen is sized and configured to receive a shaft of a medical instrument;, '(a) a cylindraceous sleeve body, wherein the cylindraceous sleeve body includes(b) a navigation sensor positioned at the open distal end of the cylindraceous sleeve body; and(c) an interface feature, wherein the interface feature is configured to couple the navigation sensor with an image guidance system, wherein the navigation sensor is configured to cooperate with an image guidance system to provide feedback indicating a position of the navigation sensor in three-dimensional space.2. The apparatus of claim 1 , wherein the cylindraceous sleeve body is flexible.3. The apparatus of claim 1 , wherein the cylindraceous sleeve body is frangible.4. The apparatus of claim 3 , wherein the cylindraceous sleeve body comprises a longitudinally spaced array of weakened portions configured to facilitate breakage of the body at a corresponding plurality of predetermined longitudinal positions.5. The apparatus of claim 1 , wherein the cylindraceous sleeve body is configured to deform laterally.6. The apparatus of claim 1 , wherein the cylindraceous ...

NAVIGATION INSTRUMENT WITH OBLIQUELY ORIENTED SENSING COIL

An apparatus includes an elongate body and a sensor. The elongate body has a proximal end and a distal end. The distal end is sized and configured to fit through a naturally occurring orifice of a human body. The sensor is positioned at the distal end of the elongate body. The sensor includes an electrically conductive coil. The coil extends along a longitudinal axis. The coil has a distal terminal winding and a proximal terminal winding. The distal terminal winding extends along a plane that is obliquely oriented relative to the longitudinal axis. The proximal terminal winding extends along a plane that is obliquely oriented relative to the longitudinal axis. 1. An apparatus comprising: (i) a proximal end, and', '(ii) a distal end, wherein the distal end is sized and configured to fit through a naturally occurring orifice of a human body; and, '(a) an elongate body, wherein the elongate body has(b) a sensor positioned at the distal end of the elongate body, wherein the sensor consists of just one single electrically conductive coil, wherein the coil extends along a longitudinal axis, wherein the coil has a distal terminal winding and a proximal terminal winding,wherein the distal terminal winding extends along a plane that is obliquely oriented relative to the longitudinal axis,wherein the proximal terminal winding extends along a plane that is obliquely oriented relative to the longitudinal axis.2. The apparatus of claim 1 , wherein the coil defines a helix axis claim 1 , wherein the helix axis defines a sensor angle with the longitudinal axis of the coil claim 1 , wherein the sensor angle is at least approximately 5°.3. The apparatus of claim 1 , wherein the distal terminal winding extends along a plane that is oriented at an angle of at least approximately 5° relative to the longitudinal axis claim 1 , wherein the proximal terminal winding extends along a plane that is oriented at an angle of at least approximately 5° relative to the longitudinal axis.4.5. The ...

Mechanical Force Sensor Based on Eddy Current Sensing

Described embodiments include an apparatus, which includes a catheter configured for insertion into a body of a subject, the catheter comprising a flexible distal portion configured to flex in response to a mechanical force applied to the catheter, a conducting element, held by the flexible distal portion of the catheter such that a position of the conducting element changes as the flexible distal portion flexes, at least one transmitting coil, disposed within the catheter proximally to the conducting element, configured to generate an alternating magnetic field that induces, in the conducting element, eddy currents that vary with the position of the conducting element, and one or more receiving coils, disposed within the catheter proximally to the conducting element, configured to output respective signals responsively to a superposition of (i) the magnetic field generated by the transmitting coil, and (ii) a secondary magnetic field generated by the eddy currents. 1. Apparatus , comprising:a catheter configured for insertion into a body of a subject, the catheter comprising a flexible distal portion configured to flex in response to a mechanical force applied to the catheter;a conducting element, held by the flexible distal portion of the catheter such that a position of the conducting element changes as the flexible distal portion flexes;at least one transmitting coil, disposed within the catheter proximally to the conducting element, configured to generate an alternating magnetic field that induces, in the conducting element, eddy currents that vary with the position of the conducting element; andone or more receiving coils, disposed within the catheter proximally to the conducting element, configured to output respective signals responsively to a superposition of (i) the magnetic field generated by the transmitting coil, and (ii) a secondary magnetic field generated by the eddy currents.2. The apparatus according to claim 1 , wherein the conducting element is ...

System and Method for Treating Epistaxis

A method of treating epistaxis includes inserting a distal end of an endoscope into a nasal cavity of a patient. At least the distal end of the endoscope includes a working channel. The method includes advancing a distal end of an RF ablation catheter through the working channel of the endoscope. The method also includes ablating tissue in a posterior nasal region of the nasal cavity using RF energy transmitted by the RF ablation catheter. 1. A method of treating epistaxis , the method comprising:(a) inserting a distal end of an endoscope into a nasal cavity of a patient, wherein at least the distal end of the endoscope includes a working channel;(b) advancing a distal end of an RF ablation catheter through the working channel of the endoscope; and(c) ablating tissue in a posterior nasal region of the nasal cavity using RF energy transmitted by the RF ablation catheter.2. The method of claim 1 , wherein the endoscope is a steerable endoscope that is coupled with a control claim 1 , wherein the method further comprises steering the steerable endoscope within the nasal cavity of the patient using the control that is located outside of the patient.3. The method of claim 2 , further comprising steering the steerable endoscope to Stamm's S-point region of the posterior nasal region using the control claim 2 , wherein ablating the tissue further includes ablating at least a portion of the Stamm's S-point region of the posterior nasal region using RF energy transmitted by the RF ablation catheter.4. The method of claim 2 , wherein the steerable endoscope includes a camera at the distal end of the steerable endoscope claim 2 , wherein the camera communicates with the control claim 2 , wherein prior to ablating the tissue in the posterior nasal region claim 2 , the method further includes verifying the RF ablation catheter is properly positioned in the posterior nasal region of the nasal cavity using the camera.5. The method of claim 2 , wherein the steerable endoscope ...

APPARATUS AND METHOD FOR MEASURING DEPTH OF BIT IN ENT DRILL

A surgical system and method for determining insertion depth of a cutting member includes a body assembly, a securement mechanism, a base position sensor, and a cutting member sensor. The body assembly defines a longitudinal axis and is configured to receive the cutting member. The securement mechanism is operatively connected to the body assembly and configured to releasably secure the cutting member relative to the body assembly. The base position sensor is configured to be detected as a base position by a navigation system. The cutting member sensor is positioned a predetermined longitudinal sensor distance from the base position sensor and configured to detect an adjustable longitudinal position of the cutting member. The sensors are configured to communicate with the navigation system for determining a position of the distal reference feature within an anatomical passageway of a patient in any selected adjustable longitudinal position of the cutting member. 1. A surgical system , comprising:(a) a body assembly defining a longitudinal axis and configured to receive a rotatable cutting member having a distal reference feature thereon,wherein at least a portion of the body assembly is configured to be inserted into an anatomical passageway of a patient for rotatably driving a cutting member within the anatomical passageway of the patient;(b) a securement mechanism operatively connected to the body assembly and configured to releasably and longitudinally secure the cutting member relative to the at least the portion of the body assembly in an adjustable longitudinal position for selectively repositioning the distal reference feature of the cutting member relative to the body assembly;(c) a base position sensor secured on the body assembly and configured to be detected as a base position by a navigation system for determining the base position relative to the anatomical passageway of the patient; and(d) a cutting member sensor secured on the body assembly and ...

CURETTE WITH NAVIGATION SENSOR

An apparatus includes a shaft assembly, an end effector, and a sensor. The shaft assembly defines a longitudinal axis. The end effector is positioned at a distal end of the shaft assembly. A portion of the end effector is offset from the longitudinal axis. The sensor is configured to generate a signal in response to a magnetic field. The signal is configured to indicate a position of the end effector within three-dimensional space. The sensor is coaxially positioned about the longitudinal axis. 1. An apparatus , comprising:(a) a shaft assembly, wherein the shaft assembly defines a longitudinal axis;(b) an end effector positioned at a distal end of the shaft assembly, wherein a portion of the end effector is offset from the longitudinal axis; and(c) a sensor, wherein the sensor is configured to generate a signal in response to a magnetic field, wherein the signal is configured to indicate a position of the end effector within three-dimensional space, wherein the sensor is coaxially positioned about the longitudinal axis.2. The apparatus of claim 1 , wherein the shaft assembly is straight.3. The apparatus of claim 1 , wherein the shaft assembly is rigid.4. The apparatus of claim 1 , wherein the shaft assembly defines a lumen.5. The apparatus of claim 4 , wherein the lumen extends coaxially along the longitudinal axis.6. The apparatus of claim 4 , further comprising a fluid source coupled with the lumen.7. The apparatus of claim 6 , wherein the fluid source comprises one or both of a source of saline or a source of suction.8. The apparatus of claim 4 , wherein the end effector defines an opening in communication with the lumen.9. The apparatus of claim 8 , wherein the opening is positioned on the longitudinal axis.10. The apparatus of claim 1 , wherein the end effector includes a loop blade.11. The apparatus of claim 10 , wherein the loop blade defines an opening positioned on a central axis claim 10 , wherein the central axis is offset from the longitudinal axis.12. ...

Navigable suction instrument with coaxial annular sensor

An apparatus includes a cannula assembly and a sensor assembly. The cannula assembly includes a proximal end, a distal end, and a first lumen extending from the proximal end to the distal end. The cannula is formed of a rigid material. The sensor assembly includes a sensor and a communication wire. The sensor is fixed to the cannula assembly. The communication wire is in electrical communication with the sensor. The communication wire extends along a length of the cannula assembly exterior to the first lumen.

Shaver with blood vessel and nerve monitoring features

A surgical instrument for cutting a first tissue and detecting a second tissue includes a shaft, a cutting member, and a tissue monitor system. The shaft extends along a longitudinal axis and includes a shaft lumen and a shaft opening. The cutting member is disposed within the shaft lumen and configured to cyclically move from a first position to a second position relative to the shaft. The cutting member is further configured to cut a tissue portion of the first tissue for removal therefrom. The tissue monitor system is associated with at least one of the shaft or the cutting member configured to detect the second tissue distinct from the first tissue for selectively cutting and removing the first tissue relative to the second tissue.

Method of treating deviated nasal septum, enlarged nasal turbinate, or mucosal hypertrophy

A method includes inserting a first dilation catheter into a first nostril of a patient. A first dilator of the first dilation catheter is positioned between the nasal septum of the patient and the turbinate of the patient. The first dilator is expanded, thereby remodeling one or more of the nasal septum, the turbinate, or mucosal tissue of the patient. The first dilation catheter is removed from the nostril of the patient. A second dilation catheter may be inserted into a second nostril of the patient. A dilator of the second dilation catheter may provide an opposing force on the nasal septum to prevent over-medialization of the nasal septum.

ENDOSCOPE WITH INTEGRAL NAVIGATION SENSOR

An apparatus includes an endoscope, a navigation sensor, and an interface feature. The endoscope includes a body, a shaft extending distally from the body, and a window located at a distal portion of the shaft. The navigation sensor is position at the distal portion of the shaft. The interface feature can couple the navigation sensor with an image guidance system. The navigation sensor can cooperate with the image guidance system to provide feedback indicating a position of the navigation sensor in three-dimensional space. 1. An apparatus , comprising: (i) a body,', '(ii) a shaft extending distally from the body, wherein the shaft comprises a distal portion, and', '(iii) a window located at the distal portion of the shaft;, '(a) an endoscope, wherein the endoscope comprises(b) a navigation sensor positioned at the distal portion of the shaft; and(c) an interface feature, wherein the interface feature is configured to couple the navigation sensor with an image guidance system, wherein the navigation sensor is configured to cooperate with an image guidance system to provide feedback indicating a position of the navigation sensor in three-dimensional space.2. The apparatus of claim 1 , wherein the shaft includes a flexible member defining a lumen.3. The apparatus of claim 1 , wherein the navigation sensor comprises a coil member.4. The apparatus of claim 3 , wherein the coil member is coupled to an exterior surface of the distal portion of the shaft.5. The apparatus of claim 4 , wherein the coil member extends around a coil axis that is coaxial with the longitudinal axis of the body.6. The apparatus of claim 4 , wherein the coil member is not coaxial with the distal portion of the shaft.7. The apparatus of claim 1 , further comprising a communication member extending between the navigation sensor and the interface feature.8. The apparatus of claim 7 , wherein the communication member extends on an exterior surface of the shaft.9. The apparatus of claim 1 , wherein the ...

SUCTION INSTRUMENT WITH VARYING INNER DIAMETER

A suction instrument includes a grip portion and a cannula. The grip portion includes a suction port and defines a first lumen. The cannula extends distally from the grip portion. The cannula defines a second lumen in fluid communication with the first lumen of the grip portion. The cannula includes a proximal portion and a distal portion. The proximal portion of the cannula defines a first portion of the second lumen. The first portion of the second lumen has a first cross-sectional area. The distal portion terminates into an open distal end. The distal portion of the cannula defines a second portion of the second lumen. The second portion of the second lumen has a second cross-sectional area. The second cross-sectional area is smaller than the first cross-sectional area. 1. A suction instrument , comprising:(a) a grip portion comprising a suction port, wherein the grip portion defines a first lumen; and (i) a proximal portion connected to the grip portion, wherein the proximal portion of the cannula defines a first portion of the second lumen, wherein the first portion of the second lumen has a first cross-sectional area, and', '(ii) a distal portion terminating into an open distal end, wherein the distal portion of the cannula defines a second portion of the second lumen, wherein the second portion of the second lumen has a second cross-sectional area, wherein the second cross-sectional area is smaller than the first cross-sectional area., '(b) a cannula extending distally from the grip portion, wherein the cannula defines a second lumen in fluid communication with the first lumen of the grip portion, wherein the cannula comprises2. The suction instrument of claim 1 , wherein the second cross-sectional area is located at the open distal end of the cannula.3. The suction instrument of claim 1 , wherein the cannular further comprises a tapered interior surface.4. The suction instrument of claim 3 , wherein the tapered interior surface extends between the first ...

MEDICAL INSTRUMENT WITH MULTI-COIL POSITION SENSOR

An apparatus includes a medical instrument, a sensor assembly, and a pair of wires. The sensor assembly is positioned at the distal end of the medical instrument. The sensor assembly includes a first coil member oriented along a first longitudinal axis and a second coil member oriented along a second longitudinal axis. The first and second coil members are coupled with each other in series. The first and second longitudinal axes are offset from each other. The first and second coil members are configured to generate electrical signals indicative of a position and orientation of the distal end of the medical instrument within a patient. First and second wires of the pair of wires are operable to communicate signals from the sensor assembly to a navigation system. 1. An apparatus comprising:(a) a medical instrument having a distal end; (i) a first coil member oriented along a first longitudinal axis, and', '(ii) a second coil member oriented along a second longitudinal axis,', 'wherein the first and second coil members are coupled with each other in series,', 'wherein the first and second longitudinal axes are offset from each other,', 'wherein the first and second coil members are configured to generate electrical signals indicative of a position and orientation of the distal end of the medical instrument within a patient;, '(b) a sensor assembly positioned at the distal end of the medical instrument, wherein the sensor assembly comprises(c) a first wire coupled with the sensor assembly; and(d) a second wire coupled with the sensor assembly;wherein the first and second wires are operable to communicate signals from the sensor assembly to a navigation system.2. The apparatus of claim 1 , wherein the medical instrument is selected from the group consisting of a guide catheter claim 1 , a dilation catheter claim 1 , a guidewire claim 1 , a suction instrument claim 1 , a rosen claim 1 , a curette claim 1 , a pick claim 1 , and an endoscope.3. The apparatus of claim 1 , ...

SURGICAL NAVIGATION SYSTEM WITH PATTERN RECOGNITION FOR FAIL-SAFE TISSUE REMOVAL

A physician preparing to perform a surgical procedure may view pre-operative images of a procedure area of a patient and use a stylus or other interface to draw boundaries between or around areas shown in the images that should be treated with extreme caution during the procedure. These boundaries may be provided by an image guided surgery navigation system and used to provide warnings (e.g., audible or visual alerts having characteristics associated with the proximity to the bounded area) and control operations of a medical instrument (e.g., reducing a cutting speed or disabling the medical instrument entirely) during the procedure in order to reduce risks associated with using the medical instrument in or around the bounded areas. Other safety features that may be defined or pre-configured based on the procedure include reacting to movement patterns (e.g., high linear speed) and location patterns (e.g., steady advancement towards an unsafe area). 1. An apparatus comprising:(a) a surgical instrument; and (i) receive a set of safety feature definitions associated with locations within anatomy of a patient,', '(ii) as the set of procedure data is produced, compare the set of procedure data to the set of safety feature definitions to determine if any portion of the set of procedure data indicates any risk factors associated with the surgical instrument based on the tracked position of the at least one portion of the surgical instrument within the anatomy of the patient, and', '(iii) where a risk factor is indicated, perform a risk mitigation task based upon that risk factor., '(b) an image guided surgery navigation system configured to track the position of at least one portion of the surgical instrument in order to produce a set of procedure data during a procedure, wherein the image guided surgery navigation system is further configured to2. The apparatus of claim 1 , the apparatus further comprising a safety feature interface that is configurable on a user device ...

AIRWAY DILATION BALLOON WITH HOLLOW CORE

A system to dilate a stenotic region of an airway of a patient includes a stylet and a dilation catheter. The dilation catheter includes a catheter shaft and an inflatable balloon. The catheter shaft defines a shaft lumen and is configured to receive at least a portion of the stylet. The shaft lumen is axially aligned with a first longitudinal axis. The inflatable balloon is in fluid communication with an inflation lumen. The inflatable balloon is configured to transition between non-expanded and expanded configurations using the inflation lumen. The inflatable balloon has an outer perimeter configured to contact the stenotic region of the airway when in the expanded configuration. The inflatable balloon includes a pass-through lumen that is axially aligned with a second longitudinal axis that is laterally offset a distance from the first longitudinal axis. The pass-through lumen is disposed completely within the outer perimeter of the inflatable balloon. 1. A system for dilating a stenotic region of an airway of a patient , the system comprising:(a) a stylet; and [ (A) a shaft lumen configured to receive at least a portion of the stylet therethrough, wherein the shaft lumen is axially aligned with a first longitudinal axis, and', '(B) an inflation lumen, and, '(i) a catheter shaft having proximal and distal portions, wherein the catheter shaft defines, '(ii) an inflatable balloon operatively coupled with the distal portion of the catheter shaft and in fluid communication with the inflation lumen of the catheter shaft, wherein the inflatable balloon is configured to transition between non-expanded and expanded configurations using the inflation lumen, and wherein the inflatable balloon has an outer perimeter configured to contact the stenotic region of the airway when in the expanded configuration,', 'wherein the inflatable balloon includes a pass-through lumen that is axially aligned with a second longitudinal axis that is laterally offset a distance from the first ...

Medical instrument with multi-coil position sensor

An apparatus includes a medical instrument, a sensor assembly, and a pair of wires. The sensor assembly is positioned at the distal end of the medical instrument. The sensor assembly includes a first coil member oriented along a first longitudinal axis and a second coil member oriented along a second longitudinal axis. The first and second coil members are coupled with each other in series. The first and second longitudinal axes are offset from each other. The first and second coil members are configured to generate electrical signals indicative of a position and orientation of the distal end of the medical instrument within a patient. First and second wires of the pair of wires are operable to communicate signals from the sensor assembly to a navigation system.

Measurement of charge bank level in a metallurgical furnace

Various systems and methods for monitoring the level of a feed material layer in a metallurgical furnace are described. At least one non-contact sensor is used to sense a distance between the feed layer and a reference position. A process controller linked to the sensor provides a control signal based upon the sensed distance. The control signal may be used to control various factors in the operation of the metallurgical furnace.

Tissue shaving instrument with navigation sensor

A surgical instrument and method of tracking the surgical instrument includes a shaft (228), a cutting member (258), and navigation system. The shaft has a shaft lumen, a shaft window, and a shaft edge. The cutting member is disposed within the shaft lumen and is configured to cyclically move from a first position to a second position relative to the shaft. The cutting member includes a cutting window opening, a cutting edge, and a suction lumen to cut the tissue portion with the cutting member in the first position. The navigation system includes a navigation sensor (266) positioned on at least one of the shaft or the cutting member that is configured to be tracked within a patient for identifying a positional movement of the shaft or the cutting member within the patient.

Navigable suction instrument with coaxial annular sensor

An apparatus includes a cannula assembly and a sensor assembly. The cannula assembly includes a proximal end, a distal end, and a first lumen extending from the proximal end to the distal end. The cannula is formed of a rigid material. The sensor assembly includes a sensor and a communication wire. The sensor is fixed to the cannula assembly. The communication wire is in electrical communication with the sensor. The communication wire extends along a length of the cannula assembly exterior to the first lumen.

Sinus dilation catheter with ultrasonic imaging feature

A dilation instrument and method of imaging an anatomy within a patient includes a dilation catheter having a catheter body, a fluid conduit extending along the catheter body, a dilator, and at least one ultrasonic transducer. The catheter body is configured to distally extend from an instrument body and move relative to the instrument body. The dilator is connected to the catheter body in fluid communication with the fluid conduit and configured to receive a fluid from the fluid conduit and thereby inflate from a contracted state to an expanded state. The at least one ultrasonic transducer positioned on the catheter body and configured to electrically connect to an ultrasonic generator. The at least one ultrasonic transducer is configured to emit a source ultrasonic signal toward an anatomy within a patient for producing a diagnostic or a therapeutic effect.

Endoscope with integral navigation sensor

An apparatus (100) includes an endoscope (260, 360), a navigation sensor (220), and an interface feature (110, 112, 114). The endoscope includes a body (262, 362), a shaft (264, 364) extending distally from the body, and a window (266, 366) located at a distal portion of the shaft. The navigation sensor is position at the distal portion of the shaft. The interface feature can couple the navigation sensor with an image guidance system. The navigation sensor can cooperate with the image guidance system to provide feedback indicating a position of the navigation sensor in three-dimensional space.

Endoscope with integral navigation sensor

An apparatus (100) includes an endoscope (260, 360), a navigation sensor (220), and an interface feature (110, 112, 114). The endoscope includes a body (262, 362), a shaft (264, 364) extending distally from the body, and a window (266, 366) located at a distal portion of the shaft. The navigation sensor is position at the distal portion of the shaft. The interface feature can couple the navigation sensor with an image guidance system. The navigation sensor can cooperate with the image guidance system to provide feedback indicating a position of the navigation sensor in three-dimensional space.

Nasal suction instrument with interchangeable tip insert

A suction instrument includes a proximal end, a distal end configured to be positioned within or adjacent to an anatomical passageway of a patient, and a suction lumen extending between the proximal and distal ends. The suction lumen is configured to provide suction at the distal end. A navigation sensor is disposed along a portion of the suction lumen and is operable to generate an electrical signal corresponding to a location of the portion within the patient. A coupling feature is disposed at the proximal end and is configured to releasably couple the proximal end with a body.

Measurement of charge bank level in a metallurgical furnace

Low profile ent probe with distal shaft length and rigidity adjustment

An apparatus (100) includes a handle (130), an elongate shaft assembly (110), an adjustment feature (140), and a position sensor (116). The shaft assembly includes an outer tube (112) and an inner shaft (114). The outer tube is slidably disposed within an elongate body (138) of the handle. The outer tube extends distally from the elongate body to an outer tube distal end (113). The inner shaft is coaxially disposed within the outer tube and extends distally through the outer tube end to an inner shaft distal tip (118). The inner shaft is sized and configured to pass through passageways within an ear, nose, or throat of a patient. The adjustment feature is slidably disposed relative to the body of the handle and is configured to translate at least the outer tube relative to the handle. The position sensor is configured to generate signals indicating a real-time position of the distal tip of the inner shaft.

Measurement of charge bank level in a metallurgical furnace

Various systems and methods for monitoring the level of a feed material layer in a metallurgical furnace are described. At least one non-contact sensor is used to sense a distance between the feed layer and a reference position. A process controller linked to the sensor provides a control signal based upon the sensed distance. The control signal may be used to control various factors in the operation of the metallurgical furnace.

method of monitoring a layer of feed material in a metallurgical furnace

SISTEMA PARA MONITORAR UM NÍVEL DE UMA CAMADA DE MATERIAL DE ALIMENTAÇÃO EM UM FORNO METALÚRGICO E MÉTODO DE MONITORAÇÃO DE UMA A CAMADA DE MATERIAL DE ALIMENTAÇÃO EM UM FORNO METALÚRGICO. A presente invenção refere-se a vários sistemas e métodos para monitorar o nível da camada de material de alimentação em um forno metalúrgico. Pelo menos um sensor de não contato é usado para perceber a distância entre a camada de alimentação e a posição de referência. Um controlador de processo ligado ao sensor fornece um sinal de controle com base na distância percebida. O sinal de controle pode ser usado para controlar vários fatores na operação do forno metalúrgico. SYSTEM FOR MONITORING A LEVEL OF A FOOD MATERIAL LAYER IN A METALLURGICAL OVEN AND METHOD OF MONITORING A FOOD MATERIAL LAYER IN A METALLURGIC OVEN. The present invention relates to various systems and methods for monitoring the level of the feed material layer in a metallurgical furnace. At least one non-contact sensor is used to perceive the distance between the supply layer and the reference position. A process controller connected to the sensor provides a control signal based on the perceived distance. The control signal can be used to control several factors in the operation of the metallurgical furnace.

Measurement of charge bank level in a metallurgical furnace

Various systems and methods for monitoring the level of a feed material layer in a metallurgical furnace are described. At least one non-contact sensor is used to sense a distance between the feed layer and a reference position. A process controller linked to the sensor provides a control signal based upon the sensed distance. The control signal may be used to control various factors in the operation of the metallurgical furnace.

Navigation sleeve for medical instrument

An apparatus includes a cylindraceous sleeve body, a navigation sensor, and an interface feature. The cylindraceous sleeve body includes an open proximal end, an open distal end, and a lumen extending from the open proximal end to the open distal end. The lumen is sized and configured to receive a shaft of a medical instrument. The navigation sensor is positioned at the open distal end of the cylindraceous sleeve body. The interface feature is configured to couple the navigation sensor with an image guidance system. The navigation sensor is configured to cooperate with an image guidance system to provide feedback indicating a position of the navigation sensor in three-dimensional space.

Coupling assembly for variable diameter surgical instrument

Electromagnetic bath level measurement for pyrometallurgical furnaces

In a first aspect, some embodiments of the invention provide a system for measuring the level of a plurality of phases of a conductive or semi-conductive mixture in a vessel, the system comprising: a vessel configured to hold a conductive or semi-conductive mixture including a plurality of phases, the vessel comprising a sidewall with an interior surface and an exterior surface, a plurality of antennas configured to transmit electromagnetic and/or eddy current signals into the sidewall of the vessel to impinge upon the plurality of phases in the conductive or semi-conductive mixture and to receive corresponding signals reflected from the plurality of phases in the conductive or semi-conductive mixture, the antennas situated at a plurality of different levels along the exterior surface of the vessel sidewall, wherein reflected signals are received, a transmitter module configured to generate electromagnetic and/or eddy current signals in communication with the plurality of antennas, a receiver module configured to receive electromagnetic and/or eddy current signals in communication with the plurality of antennas, a control module in communication with the transmitter module and the receiver module configured to control the operation of the transmitter module and the receiver module, and a signal analysis module in communication with the receiver module configured to process the reflected signals to determine the levels of the plurality of phases of the conductive or semi-conductive mixture within the vessel.

Dilation instrument with malleable guide and dilation catheter with integral position sensor

An apparatus includes a handle assembly, a guide tube, and a dilation catheter. The guide tube extends distally from the handle assembly. At least a distal portion of the guide tube is malleable. The dilation catheter is slidably positioned in the guide tube. The dilation catheter includes a distal end, a dilator, and a position sensor. The position sensor is configured to generate a signal indicating a position of the position sensor in three-dimensional space. The dilation catheter is configured to translate relative to the guide tube.

Instrument with integral imaging and irrigation features

A surgical instrument and related method includes an instrument body, a guide shaft distally projecting from the instrument body, and a first surgical tool. The guide shaft has a guide sidewall, a guide lumen, and a clearance opening radially extending through the guide sidewall in communication with the guide lumen. The first surgical tool has an elongate body and a distal head configured to deflect relative to the elongate body from a first position to a second position. The distal head in the first position is positioned within the guide lumen along the central axis. The distal head in the second position is deflected from the central axis and extends at least partially through the clearance opening thereby vacating at least a portion of the guide lumen for introducing a second surgical tool through the guide lumen.

Apparatus and method for measuring depth of bit in ent drill

A surgical system and method for determining insertion depth of a cutting member includes a body assembly, a securement mechanism, a base position sensor, and a cutting member sensor. The body assembly defines a longitudinal axis and is configured to receive the cutting member. The securement mechanism is operatively connected to the body assembly and configured to releasably secure the cutting member relative to the body assembly. The base position sensor is configured to be detected as a base position by a navigation system. The cutting member sensor is positioned a predetermined longitudinal sensor distance from the base position sensor and configured to detect an adjustable longitudinal position of the cutting member. The sensors are configured to communicate with the navigation system for determining a position of the distal reference feature within an anatomical passageway of a patient in any selected adjustable longitudinal position of the cutting member.

Navigation instrument with obliquely oriented sensing coil

An apparatus includes an elongate body and a sensor. The elongate body has a proximal end and a distal end. The distal end is sized and configured to fit through a naturally occurring orifice of a human body. The sensor is positioned at the distal end of the elongate body. The sensor includes an electrically conductive coil. The coil extends along a longitudinal axis. The coil has a distal terminal winding and a proximal terminal winding. The distal terminal winding extends along a plane that is obliquely oriented relative to the longitudinal axis. The proximal terminal winding extends along a plane that is obliquely oriented relative to the longitudinal axis.

Metallurgisen uunin täyttötason mittaus

Navigation sleeve for medical instrument

Medical instrument with integral navigation control features

Variations of integral navigation controls may be used in conjunction with a medical instrument to provide navigation functions for an image guided surgery (IGS) system that is in communication with the integral navigation controls. In some variations, a medical instrument with integrated navigation wheels allows movement of a cursor of the IGS system along the x and y axis by scrolling the wheel, or allows selection, zooming, or other controls by combined clicking and/or scrolling of wheels, and may be sterilized or discarded along with the device. In some other variations, a control overlay may be temporarily attached to the medical instrument to provide additional controls, such as buttons or a pointing stick, and then removed and sterilized or discarded after a procedure. In each variation, inputs may be communicated via wire or wirelessly to an IGS system to provide navigation of images during a surgical procedure.

Curette with navigation sensor

An apparatus includes a shaft assembly, an end effector, and a sensor. The shaft assembly defines a longitudinal axis. The end effector is positioned at a distal end of the shaft assembly. A portion of the end effector is offset from the longitudinal axis. The sensor is configured to generate a signal in response to a magnetic field. The signal is configured to indicate a position of the end effector within three-dimensional space. The sensor is coaxially positioned about the longitudinal axis.

Shaver with blood vessel and nerve monitoring features

A surgical instrument for cutting a first tissue and detecting a second tissue includes a shaft, a cutting member, and a tissue monitor system. The shaft extends along a longitudinal axis and includes a shaft lumen and a shaft opening. The cutting member is disposed within the shaft lumen and configured to cyclically move from a first position to a second position relative to the shaft. The cutting member is further configured to cut a tissue portion of the first tissue for removal therefrom. The tissue monitor system is associated with at least one of the shaft or the cutting member configured to detect the second tissue distinct from the first tissue for selectively cutting and removing the first tissue relative to the second tissue.

3d scanning of nasal tract with deflectable endoscope

3d scanning of nasal tract with deflectable endoscope

An apparatus includes a shaft, an imaging head, and a processor. The shaft includes a distal end sized to fit through a human nostril into a human nasal cavity. The imaging head includes an image sensor assembly, a plurality of light sources, and a plurality of collimators. At least some of the light sources are positioned adjacent to the image sensor assembly. Each collimator is positioned over a corresponding light source of the plurality of light sources. The processor is configured to activate the light sources in a predetermined sequence. The image sensor assembly is configured to capture images of a surface illuminated by the light sources as the light sources are activated in the predetermined sequence.

Dilation Instrument with Malleable Guide and Dilation Catheter with Integral Position Sensor

An apparatus includes a handle assembly, a guide tube, and a dilation catheter. The guide tube extends distally from the handle assembly. At least a distal portion of the guide tube is malleable. The dilation catheter is slidably positioned in the guide tube. The dilation catheter includes a distal end, a dilator, and a position sensor. The position sensor is configured to generate a signal indicating a position of the position sensor in three-dimensional space. The dilation catheter is configured to translate relative to the guide tube.

Computerized tomography (ct) image correction using position and direction (p&d) tracking assisted optical visualization

Endoscope with dual image sensors

An endoscopic camera has two or more cameras positioned at a distal end, positioned to provide partially overlapping fields of view. The cameras communicate captured digital images the length of the flexible endoscope, where they may be saved and processed to provide additional imaging features. With partially overlapping images from two or more cameras, image processing can provide panoramic images, super resolution images, and three-dimensional images. One or more of these image modes may also be enhanced to provide a virtualization window that displays a portion of a larger or higher resolution image. The virtualization window displays the selected area of the image, and may be moved or zoomed around the image to provide a virtual endoscope repositioning experience, where the endoscope remains statically positioned but the virtualization window presents a sense of movement and navigation around the surgical area.

Airway dilation balloon with hollow core

A system to dilate a stenotic region of an airway of a patient includes a stylet and a dilation catheter. The dilation catheter includes a catheter shaft and an inflatable balloon. The catheter shaft defines a shaft lumen and is configured to receive at least a portion of the stylet. The shaft lumen is axially aligned with a first longitudinal axis. The inflatable balloon is in fluid communication with an inflation lumen. The inflatable balloon is configured to transition between non-expanded and expanded configurations using the inflation lumen. The inflatable balloon has an outer perimeter configured to contact the stenotic region of the airway when in the expanded configuration. The inflatable balloon includes a pass-through lumen that is axially aligned with a second longitudinal axis that is laterally offset a distance from the first longitudinal axis. The pass-through lumen is disposed completely within the outer perimeter of the inflatable balloon.

Intranasal balloon compression for treatment of chronic rhinitis

Dilation catheter (122) for the insertion into a nostril of a patient, configured for positioning of a first dilator (230) of the dilation catheter between a turbinate (IT) of the patient and an adjacent lateral nasal wall of the patient. Further configured for expansion of the first dilator, thereby for applying pressure to the turbinate of the patient, and for removal of the dilation catheter from the nostril of the patient.

Method of forming suction instrument end and shaver instrument end

A method is used to manufacture a surgical instrument including a first tube, and a second tube. The first tube extends from a proximal first end portion to a distal first end portion. The second tube extends from a proximal second end portion to a distal second end portion. The second tube is positioned coaxially within the first tube with the distal second end portion positioned adjacent to the distal first end portion. The second tube defines a lumen. The sensor is secured proximal to the distal second end portion of the second tube. A die is engaged against a distal first end portion of the first tube while first tube rotates about its own longitudinal axis; and the die is simultaneously moved relative to the distal first end portion of the first tube along a predetermined path to form a predetermined shape.

Curette with navigation sensor

Shaver with blood vessel and nerve monitoring features

A surgical instrument for cutting a first tissue and detecting a second tissue includes a shaft, a cutting member, and a tissue monitor system. The shaft extends along a longitudinal axis and includes a shaft lumen and a shaft opening. The cutting member is disposed within the shaft lumen and configured to cyclically move from a first position to a second position relative to the shaft. The cutting member is further configured to cut a tissue portion of the first tissue for removal therefrom. The tissue monitor system is associated with at least one of the shaft or the cutting member configured to detect the second tissue distinct from the first tissue for selectively cutting and removing the first tissue relative to the second tissue.

Instrument for endoscopic posterior nasal nerve ablation

A surgical instrument includes an elongate shaft having a proximal shaft portion and a malleable distal shaft portion. The elongate shaft is configured to be secured to a supporting surgical instrument. An ablation head is coupled to the malleable distal shaft portion and includes at least one electrode operable to deliver RF energy to tissue for ablating the tissue. The ablation head is sized to fit within the nasal cavity of a patient with a distal end of the supporting surgical instrument. The proximal shaft portion is configured to operatively couple with an RF energy source operable to energize the at least one electrode with RF energy. The malleable distal shaft portion is configured to bend relative to a longitudinal shaft axis defined by the proximal shaft portion for selectively orienting the ablation head relative to the longitudinal shaft axis.

Computerized tomography (CT) image correction using position and direction (P and D) tracking assisted optical visualization

A system ( 11 ) includes a medical probe ( 36 ) for insertion into a cavity of an organ, which includes a position and direction sensor ( 60 ) and a camera ( 45 ), both operating in a sensor coordinate system ( 62 ). The system further includes a processor ( 44 ) configured to: receive, from an imaging system ( 21 ) operating in an image coordinate system ( 28 ), a three-dimensional image of the cavity including open space and tissue; receive, from the medical probe, signals indicating positions and respective directions of the medical probe inside the cavity; receive, from the camera, respective visualized locations inside the cavity; register the image coordinate system with the sensor coordinate system so as to identify one or more voxels in the image at the visualized locations, and when the identified voxels have density values in the received image that do not correspond to the open space, to update the density values of the identified voxels to correspond to the open space.

Dilation instrument with malleable guide and dilation catheter with integral position sensor

An apparatus includes a handle assembly, a guide tube, and a dilation catheter. The guide tube extends distally from the handle assembly. At least a distal portion of the guide tube is malleable. The dilation catheter is slidably positioned in the guide tube. The dilation catheter includes a distal end, a dilator, and a position sensor. The position sensor is configured to generate a signal indicating a position of the position sensor in three-dimensional space. The dilation catheter is configured to translate relative to the guide tube.

Instrument with integral imaging and irrigation features

A surgical instrument and related method includes an instrument body, a guide shaft distally projecting from the instrument body, and a first surgical tool. The guide shaft has a guide sidewall, a guide lumen, and a clearance opening radially extending through the guide sidewall in communication with the guide lumen. The first surgical tool has an elongate body and a distal head configured to deflect relative to the elongate body from a first position to a second position. The distal head in the first position is positioned within the guide lumen along the central axis. The distal head in the second position is deflected from the central axis and extends at least partially through the clearance opening thereby vacating at least a portion of the guide lumen for introducing a second surgical tool through the guide lumen.

Method of treating deviated nasal septum, enlarged nasal turbinate, or mucosal hypertrophy

A method includes inserting a first dilation catheter into a first nostril of a patient. A first dilator of the first dilation catheter is positioned between the nasal septum of the patient and the turbinate of the patient. The first dilator is expanded, thereby remodeling one or more of the nasal septum, the turbinate, or mucosal tissue of the patient. The first dilation catheter is removed from the nostril of the patient. A second dilation catheter may be inserted into a second nostril of the patient. A dilator of the second dilation catheter may provide an opposing force on the nasal septum to prevent over-medialization of the nasal septum.

Method for treating patulous eustachian tube

A method of treating a patulous Eustachian tube includes forming a first pocket in a wall of a nasopharynx region proximate to a pharyngeal ostium, inserting a resiliently biased implant within the first pocket, and allowing the resiliently biased implant to expand within the first pocket to thereby urge the Eustachian tube towards a closed state. The wire implant may include a resilient stent or other resilient wire structure. In some versions, a deployment device having a balloon is used to deploy a malleable implant. This deployment device has a malleable implant disposed around the balloon, which is disposed around a guide catheter. The balloon is inflated and expands the malleable implant. The malleable implant retains the expanded shape and urges the Eustachian tube toward a closed state.

Navigation sleeve for medical instrument

An apparatus includes a cylindraceous sleeve body, a navigation sensor, and an interface feature. The cylindraceous sleeve body includes an open proximal end, an open distal end, and a lumen extending from the open proximal end to the open distal end. The lumen is sized and configured to receive a shaft of a medical instrument. The navigation sensor is positioned at the open distal end of the cylindraceous sleeve body. The interface feature is configured to couple the navigation sensor with an image guidance system. The navigation sensor is configured to cooperate with an image guidance system to provide feedback indicating a position of the navigation sensor in three-dimensional space.

Apparatus and method for registering facial landmarks for surgical navigation system

An array of sensors may be used to perform touchless registration of landmarks of a patient's face before an ENT procedure in order to associate those landmarks with pre-operative images in three-dimensional space, which is required for image guided surgery features such as navigation. Touchless or light-touch registration may improve accuracy by avoiding the need for substantial pressing against a patient's skin, which may deform and thereby introduce erroneous registration data. A sensor may also be implemented in forms other than an array such as handheld probe having a single sensor as opposed to an array.

Intranasal balloon compression for treatment of chronic rhinitis

A method includes inserting a dilation catheter into a nostril of a patient and positioning a first dilator of the dilation catheter between a turbinate of the patient and an adjacent lateral nasal wall of the patient. The method also includes expanding the first dilator, thereby applying pressure to the turbinate of the patient, and removing the dilation catheter from the nostril of the patient.

Instrument for endoscopic posterior nasal nerve ablation

A surgical instrument includes an elongate shaft having a proximal shaft portion and a malleable distal shaft portion. The elongate shaft is configured to be secured to a supporting surgical instrument. An ablation head is coupled to the malleable distal shaft portion and includes at least one electrode operable to deliver RF energy to tissue for ablating the tissue. The ablation head is sized to fit within the nasal cavity of a patient with a distal end of the supporting surgical instrument. The proximal shaft portion is configured to operatively couple with an RF energy source operable to energize the at least one electrode with RF energy. The malleable distal shaft portion is configured to bend relative to a longitudinal shaft axis defined by the proximal shaft portion for selectively orienting the ablation head relative to the longitudinal shaft axis.

Measurement of charge bank level in a metallurgical furnace

Curette with navigation sensor

An apparatus includes a shaft assembly, an end effector, and a sensor. The shaft assembly defines a longitudinal axis. The end effector is positioned at a distal end of the shaft assembly. A portion of the end effector is offset from the longitudinal axis. The sensor is configured to generate a signal in response to a magnetic field. The signal is configured to indicate a position of the end effector within three-dimensional space. The sensor is coaxially positioned about the longitudinal axis.

可変直径外科用器具のための連結アセンブリ

【課題】解剖学的通路内に拡張カテーテルのバルーンを位置決めするためのシステムを提供する。【解決手段】機器は、細長い部材８０２と共に使用されてもよく、係合部材８１２と、中空シャフト８１４と、圧縮部材８２０と、圧縮要素８１８と、弾性把持部材８１６と、を含む。中空シャフトは、係合部材から長手方向軸に沿って延びる。圧縮部材は、中空シャフト上に摺動可能に配設される。中空シャフトは、弾性把持部材の上に配設され、圧縮要素を支持する。圧縮部材は、戻り止め機構８２２を含む円錐状の内側表面８８０を有する。円錐状の内側表面は、戻り止め機構が圧縮要素を保持している状態でカラーがロック解除位置からロック位置に向かって前進すると、圧縮要素を半径方向内向きに付勢するように構成されている。【選択図】図１７Ｂ

Instrument with integral imaging and irrigation features

A surgical instrument and related method includes an instrument body, a guide shaft distally projecting from the instrument body, and a first surgical tool. The guide shaft has a guide sidewall, a guide lumen, and a clearance opening radially extending through the guide sidewall in communication with the guide lumen. The first surgical tool has an elongate body and a distal head configured to deflect relative to the elongate body from a first position to a second position. The distal head in the first position is positioned within the guide lumen along the central axis. The distal head in the second position is deflected from the central axis and extends at least partially through the clearance opening thereby vacating at least a portion of the guide lumen for introducing a second surgical tool through the guide lumen.

Dilation instrument with malleable guide and dilation catheter with integral position sensor

Dilation instrument with malleable guide and dilation catheter with integral position sensor

An apparatus includes a handle assembly, a guide tube, and a dilation catheter. The guide tube extends distally from the handle assembly. At least a distal portion of the guide tube is malleable. The dilation catheter is slidably positioned in the guide tube. The dilation catheter includes a distal end, a dilator, and a position sensor. The position sensor is configured to generate a signal indicating a position of the position sensor in three-dimensional space. The dilation catheter is configured to translate relative to the guide tube.

Method for treating patulous eustachian tube

A method of treating a patulous Eustachian tube includes forming a first pocket in a wall of a nasopharynx region proximate to a pharyngeal ostium, inserting a resiliently biased implant within the first pocket, and allowing the resiliently biased implant to expand within the first pocket to thereby urge the Eustachian tube towards a closed state. The wire implant may include a resilient stent or other resilient wire structure. In some versions, a deployment device having a balloon is used to deploy a malleable implant. This deployment device has a malleable implant disposed around the balloon, which is disposed around a guide catheter. The balloon is inflated and expands the malleable implant. The malleable implant retains the expanded shape and urges the Eustachian tube toward a closed state.

Curette with navigation sensor

Dilation instrument with malleable guide and dilation catheter with integral position sensor

Endoscope with anatomy elevation assembly

An endoscope assembly includes a shaft assembly, an endoscopic camera assembly, and an anatomy elevation assembly. The shaft assembly includes a flexible outer shaft defining a lumen, a first electrical communication line, and a first fluid communication line. The endoscopic camera assembly is in communication with the first electrical communication line. The anatomy elevation assembly includes an inflatable member coupled to the flexible outer shaft. The inflatable member includes an interior surface. The first fluid communication line is in fluid communication with the inflatable member. The inflatable member is configured to transition between a deflated configuration and an inflated configuration. The interior surface is configured to define a viewing path distal to the endoscopic camera assembly while the inflatable member is in the inflated configuration.

Electromagnetic bath level measurement for pyrometallurgical furnaces

Medición electromagnética del nivel de un baño para hornos pirometalúrgicos

Un método para medir el nivel de una fase a partir de una pluralidad de fases de una mezcla conductora o semiconductora dentro de un vaso, comprendiendo el método: proporcionar (510, 610) un vaso (110) que contiene una mezcla conductora o semiconductora (102) que incluye una pluralidad de fases, comprendiendo el vaso una pared lateral; proporcionar una capa de acreción del proceso (122, 234) entre la pared lateral del vaso y la mezcla conductora o semiconductora; caracterizado por: transmitir (520, 620) al menos una señal electromagnética y/o de corrientes parásitas en la pared lateral del vaso a una pluralidad de niveles diferentes, de modo que cada una de las señales electromagnéticas y/o de corrientes parásitas transmitidas incida sobre la mezcla conductora o semiconductora sustancialmente al mismo nivel en el que se transmite cada señal electromagnética y/o de corrientes parásitas, estimulando al menos una correspondiente señal electromagnética y/o de corrientes parásitas reflejada; recibir (530, 630) la al menos una correspondiente señal electromagnética y/o de corrientes parásitas reflejada, la señal electromagnética y/o de corrientes parásitas reflejada que se origina en el límite (238) entre la pared lateral del vaso y la capa de acreción del proceso y en el límite (236) entre la capa de acreción del proceso y la mezcla conductora o semiconductora; y procesar (540, 650) la al menos una señal electromagnética y/o de corrientes parásitas reflejada para determinar el nivel de al menos una fase de la pluralidad de fases en la mezcla conductora o semiconductora y el grosor de la capa de acreción del proceso dentro del vaso.

método e sistema de medir o nível de uma fase de uma pluralidade de fases de uma mistura condutora ou semicondutora dentro de um recipiente

MÉTODO E SISTEMA DE MEDIR O NÍVEL DE UMA FASE DE UMA PLURALIDADE DE FASES DE UMA MISTURA CONDUTORA OU SEMICONDUTORA DENTRO DE UM RECIPIENTE. A presente invenção refere-se a um sistema para medir o nível de uma pluralidade de fases de uma mistura condutora ou semicondutora em um recipiente, o sistema compreendendo um recipiente configurado para reter uma mistura condutora ou semicondutora incluindo uma pluralidade de fases, o recipiente compreendendo uma parede lateral com uma superfície interna e uma superfície externa, uma pluralidade de antenas configuradas para transmitir sinais eletromagnéticos e/ou de corrente de Foucault para dentro da parede lateral do recipiente para invadir a pluralidade de fases na mistura condutora ou semicondutora e para receber os sinais correspondentes refletidos da pluralidade de fases na mistura condutora ou semicondutora, as antenas situadas em uma pluralidade de níveis diferentes ao longo de superfície externa da parede lateral do recipiente, em que os sinais refletidos são recebidos, um módulo transmissor configurado para gerar sinais eletromagnéticos e/ou de corrente de Foucault em comunicação com a pluralidade de antenas, um módulo receptor configurado para receber os sinais eletromagnéticos e/ou de corrente de Foucault em comunicação com a pluralidade de (...).