DUODENAL GASTROINTESTINAL DEVICES AND DELIVERY MECHANISMS

A system for delivering an endolumenal device through an endoscope includes a delivery tool and an adaptor. The delivery tool has an elongate tube configured to hold a portion of the endolumenal device therein and a first connecting feature on a distal end of the elongate tube. The adaptor is configured to attach to a handle of the endoscope. The adaptor includes a channel therethrough and a second connecting feature configured to mate with the first connecting feature of the delivery tool. The elongate tube of the delivery tool is configured to align with the channel of the adaptor when the first and second connecting features are mated. 1. A method of loading an unsheathed endolumenal device into a working channel of an endoscope , comprising:attaching an adaptor to a handle of the endoscope such that a channel of the adaptor is in communication with the working channel of the endoscope;loading the unsheathed endolumenal device into a lumen of a loading tool from a coupling end of the loading tool an open end of the loading tool until a proximal end of the device is positioned at the open end;connecting the coupling end of the loading tool to the adaptor; andpushing the proximal end of the unsheathed endolumenal device distally along the lumen of the loading tool through the adaptor and into the working channel.2. The method of claim 1 , wherein loading the unsheathed device comprises loading such that a distal end of the device remains outside of the loading tool claim 1 , the method further comprising advancing the distal end of the unsheathed endolumenal device into the channel of the adaptor.3. The method of claim 1 , further comprising removing the loading tool from the adaptor and continuing to push the proximal end of the unsheathed endolumenal device distally until the unsheathed endolumenal device is completely within the working channel.4. The method of claim 3 , wherein pushing the proximal end of the unsheathed endolumenal device comprises pushing ...

INSTRUMENT AND METHOD FOR REMOTELY MANIPULATING A TISSUE STRUCTURE

A retractor and a surgical tool are posittioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a dissection cradle that is resiliently supported along an axis skewed relative to the axis of the cannula. The dissection cradle, in operation, is extended to cradle the target vessel, and the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate a side branch for exposure to a surgical tool. The retractor includes a hollow support and a spray nozzle disposed in the distal end of the retractor to form an irrigation system and lens washer that can be selectively positioned to direct the spray of irrigation fluid at a remote surgical site or at an endoscopic lens. 1. Surgical apparatus comprising:an elongated cannula having an elongated axis between distal and proximal ends, and including an endoscope lumen extending as a hollow bore between the distal and proximal ends for slidably receiving an endoscope therein;an instrument lumen extending as a hollow bore between distal and proximal ends of the cannula in substantial diametric orientation therein relative to the endoscope lumen;a pair of auxiliary lumens disposed in substantially diametric orientation on opposite sides of, and in skewed relation to, the diametric orientation of the endoscope lumen and instrument lumen, at least one of the pair of auxiliary lumens extending between distal and proximal ends of the cannula; andelongated supports slidably disposed within each of the pair of auxiliary lumens to selectively extend beyond the distal end of the cannula, and including a vessel cradle transversely mounted between the distal ends of the elongated supports.2. Surgical apparatus according to in which the elongated supports are resiliently skewed laterally relative to the elongated axis of the cannula for lateral displacement therefrom in response to movement of the supports in a direction ...

CALIBRATION OF ULTRASOUND PROBES

A method of calibrating an ultrasound probe includes mounting an ultrasound probe onto a calibration system, transmitting an ultrasound test signal from an element of the probe through a test medium of the calibration system, and receiving the test signal on a matrix of hydrophones such that an element's position relative to other elements and other arrays within the same probe can be computed. Further, the system described herein is configured to detect the acoustic performance of elements of a probe and report the results to an end user or service provider. 1. A method of calibrating an ultrasound probe , the method comprising:mounting an ultrasound probe onto a calibration system;transmitting an ultrasound test signal from an element of the probe through a test medium of the calibration system;receiving the test signal at a first hydrophone of the calibration system at a first time;receiving the test signal at a second hydrophone of the calibration system at a second time;receiving the test signal at a third hydrophone of the calibration system at a third time; anddetermining an acoustic position of the element based upon differences in the first time, the second time, and the third time.2. The method of claim 1 , wherein the element is part of an array having a plurality of elements claim 1 , the method further comprising repeating the transmitting claim 1 , receiving claim 1 , and determining steps for at least one additional element in the array.3. The method of claim 2 , wherein the transmitting claim 2 , receiving claim 2 , and determining steps are performed fir every element in the array.4. The method of claim 2 , wherein the transmitting claim 2 , receiving claim 2 , and determining steps are performed for less than all of the elements in the array claim 2 , the method further comprising interpolating acoustic positions of all remaining elements.5. The method of claim 2 , wherein the probe comprises a plurality of distinct arrays claim 2 , and wherein the ...

VESSEL RETRACTOR

A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis that can be skewed relative to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. Thus, in operation, a surgeon locates a vessel and side branch of interest and extends the retractor to cradle the vessel in the dissection cradle. Once cradled, the retractor may be deflected to urge the vessel away from the axis of the cannula to isolate the side branch for exposure to the surgical tool. Removable, transparent tips are selectively positioned at the distal end of the cannula for performing dissection and transection via a single cannula. Additionally, the tips are configured to align the apices of the tips with the central axis of the endoscope to maximize the visual field through the tips via the endoscope. Wing-like protrusions on an alternate tip for the cannula facilitate tissue dissection in forming a tunnel in tissue along a target vessel. Swept back forward edges on the wing-like protrusions promote easy tissue dissection using reduced force to advance the cannula and alternate tip through tissue surrounding the target vessel. 1. A surgical apparatus comprising:an elongated cannula having a lumen extending therein between proximal and distal ends;a retractor disposed to slide within the lumen to extend a distal end thereof beyond the distal end of the cannula;an angling device attached near the distal end of the retractor and extending within the cannula toward the proximal end thereof for selectively ...

Duodenal gastrointestinal devices and related treatment methods

An intragastric device includes an elongated member having a proximal end and a distal end and an anchor connected to the elongated member. The anchor includes a stem, a first arch and a second arch, and a curvilinear element. The stem includes a proximal end and a distal end. The distal end of the stem is attached to the proximal end of the elongated member. Each arch has first and second ends and a proximal peak therebetween. The first end of each arch is attached to the proximal end of the stem, and the second end of each arch extends radially away from the stem. The curvilinear element connects the second end of the first arch to the second end of the second arch.

MULTIPLE APERTURE ULTRASOUND ARRAY ALIGNMENT FIXTURE

Increasing the effective aperture of an ultrasound imaging probe by including more than one probe head and using the elements of all of the probes to render an image can greatly improve the lateral resolution of the generated image. In order to render an image, the relative positions of all of the elements must be known precisely. A calibration fixture is described in which the probe assembly to be calibrated is placed above a test block and transmits ultrasonic pulses through the test block to an ultrasonic sensor. As the ultrasonic pulses are transmitted though some or all of the elements in the probe to be tested, the differential transit times of arrival of the waveform are measured precisely. From these measurements the relative positions of the probe elements can be computed and the probe can be aligned. 1. A method of aligning and assembling an ultrasound probe , the method comprising:placing a transducer array within an array carrier;transmitting an ultrasound signal from the transducer array;receiving the ultrasound signal with an ultrasonic sensor;determining a corrected alignment of the transducer array based on the received signal;adjusting a position and/or an angulation of the transducer array with adjustment features of the array carrier based on the corrected alignment; andinserting an acoustic damping material into a space between the transducer array and the array carrier.2. The method of claim 1 , further comprising claim 1 , repeating the transmitting claim 1 , receiving and adjusting steps at least once prior to the step of inserting the acoustic damping material.3. The method of claim 1 , further comprising inserting the array carrier into a first transducer receptacle within a multiple aperture probe assembly.4. The method of claim 1 , further comprising:placing a second transducer array within a second array carrier;transmitting a second ultrasound signal from the second transducer array;receiving the second ultrasound signal with the ...

UNIVERSAL MULTIPLE APERTURE MEDICAL ULTRASOUND PROBE

A Multiple Aperture Ultrasound Imaging (MAUI) probe or transducer is uniquely capable of simultaneous imaging of a region of interest from separate physical apertures. Construction of probes can vary by medical application. That is, a general radiology probe can contain multiple transducers that maintain separate physical points of contact with the patient's skin, allowing multiple physical apertures. A cardiac probe may contain only two transmitters and receivers where the probe fits simultaneously between two or more intracostal spaces. An intracavity version of the probe can space transmit and receive transducers along the length of the wand, while an intravenous version can allow transducers to be located on the distal length the catheter and separated by mere millimeters. Algorithms can solve for variations in tissue speed of sound, thus allowing the probe apparatus to be used virtually anywhere in or on the body. 1. An ultrasound imaging device , comprising:a first probe housing section comprising a first transducer array aligned to transmit and receive ultrasound pulses in an imaging plane extending into an object to be imaged;a second probe housing section comprising a second transducer array aligned to transmit and receive ultrasound pulses in the imaging plane; andan adjustment mechanism that attaches the first probe housing to the second probe housing, the adjustment mechanism being configured to adjust a distance between the first transducer array and the second transducer array in a plane perpendicular to the imaging plane while maintaining alignment of the first transducer array and the second transducer array within the imaging plane.2. The ultrasound imaging device of claim 1 , wherein the adjustment mechanism comprises a thumb wheel.3. The ultrasound imaging device of claim 1 , further comprising an electronic controller configured to control the first and second transducer arrays.4. The ultrasound imaging device of claim 3 , further comprising a ...

Organ Manipulator Apparatus

Organ manipulation devices for atraumatically grasping the surface of an organ and repositioning the organ to allow access to a location on the organ that would otherwise be substantially inaccessible. Methods of accessing a beating heart, retracting the heart using an organ manipulation apparatus, and stabilizing a surgical target area with a stabilizer. Both the organ manipulator and stabilizer are fixed to a stationary object which may be a sternal retractor. A system for performing beating heart coronary artery bypass grafting includes a sternal retractor, organ manipulator and stabilizer. 1101-. (canceled)102. A suction assembly for an organ manipulation apparatus , comprising:a hollow shaft connectable to a vacuum source;a suction cup connected to the hollow shaft and configured to establish a relative negative pressure, via the vacuum source, in a space between the suction cup and an organ and to exert sufficient force on the organ to move the organ when the suction member is moved after first being placed against the organ;a clevis arranged to translate along a length of the hollow shaft; anda roller comprising an elongated body with an axis of rotation substantially perpendicular to the length of the hollow shaft to permit rotational movement between the clevis and the hollow shaft.103. The assembly of claim 102 , further comprising a bias member configured to exert a biasing force on the clevis in a direction along the length of the hollow shaft.104. The assembly of claim 102 , wherein the clevis includes a shaft protruding therefrom configured to connect the suction assembly to an organ manipulation apparatus.1051. An organ manipulation device comprising the suction assembly of claim secured to an articulating arm via a shaft protruding from the clevis.106. The organ manipulation device of claim 105 , further comprising a support structure connected to the articulating arm opposite to the suction assembly.107. An assembly for establishing an interface ...

TERMINATION DEVICES AND RELATED METHODS

Devices and methods for locking and/or cutting tethers during a tissue modification procedure are described. In some variations, a tether may be used to tighten tissue by bringing two pieces or sections of the tissue together. The tether, which may be under tension, may be locked to maintain the tension, and excess tether may be severed, using one or more of the devices and/or methods. The devices and/or methods may be used, for example, in minimally invasive procedures. 1. A device for securing a tether comprising:a locking member configured to receive a plug and comprising a proximal end, a distal end, and a lumen therethrough; anda plug rotatable within the lumen of the locking member to secure a portion of a tether within the lumen, the plug comprising an exterior surface and at least one protrusion configured to engage a portion of a tether within the lumen of the locking member between the at least one protrusion and locking member to secure the tether,wherein the locking member comprises a wall portion comprising an interior surface, and wherein the exterior surface of the plug has at least one contour alignable with the interior surface of the wall portion when the plug is at least partially disposed within the lumen of the locking member.2. The device of claim 1 , further comprising an elongated member comprising a distal portion to which the locking member is releasably coupled.3. The device of claim 1 , wherein the wall portion of the locking member comprises first and second apertures alignable for passage of a tether therethrough.4. The device of claim 3 , wherein the first and second apertures are located such that a tether passing therethrough would not cross the center of the lumen of the locking member.5. The device of claim 1 , wherein the locking member comprises a tubular member.6. The device of claim 1 , wherein the plug is rotatable by at least about 1° to secure a portion of a tether within the lumen of the locking member.7. The device of ...

CALIBRATION OF ULTRASOUND PROBES

A method of calibrating an ultrasound probe includes mounting an ultrasound probe onto a calibration system, transmitting an ultrasound test signal from an element of the probe through a test medium of the calibration system, and receiving the test signal on a matrix of hydrophones such that an element's position relative to other elements and other arrays within the same probe can be computed. Further, the system described herein is configured to detect the acoustic performance of elements of a probe and report the results to an end user or service provider. 1. An ultrasound probe calibration device , comprising:a tank having a top portion, a bottom wall, at least one side wall between the top portion and the bottom wall, an internal volume filled with a gel or a solid filler material, and at least one target within the tank volume;the upper portion defining an ultrasound probe docking area having at least one ultrasound probe receiver and a mechanical docking device configured to hold an ultrasound probe in a substantially rigid, consistent, and immobile position.2. The device of claim 1 , wherein the mechanical docking device comprises a clasp configured to secure a handle portion of the ultrasound probe in a fixed position.3. The device of claim 1 , wherein the probe receiver comprises a molded body that conforms to a shape of the ultrasound probe.4. The device of claim 3 , wherein a material of the ultrasound probe receiver is the same material as the filler material.5. The device of claim 4 , wherein the filler material and the ultrasound probe receiver material are both ballistics gel.6. The device of claim 1 , wherein the ultrasound probe receiver comprises a flexible fluid-filled bladder.7. The device of claim 1 , wherein the ultrasound probe docking area comprises a plurality of molded probe receivers conforming to shapes of differently-shaped ultrasound probes.8. The device of claim 1 , wherein the ultrasound probe receiver comprises electrical contacts ...

CALIBRATION OF ULTRASOUND PROBES

A method of calibrating an ultrasound probe includes mounting an ultrasound probe onto a calibration system, transmitting an ultrasound test signal from an element of the probe through a test medium of the calibration system, and receiving the test signal on a matrix of hydrophones such that an element's position relative to other elements and other arrays within the same probe can be computed. Further, the system described herein is configured to detect the acoustic performance of elements of a probe and report the results to an end user or service provider. 1. A multiple aperture ultrasound probe comprising:a probe housing;a probe bracket positioned within and secured to the probe housing;a first transducer array secured to a substantially planar plate-shaped first precision alignment element by a layer of a solidified polymer material interposed between a first surface of the first precision alignment element and a first surface of the first transducer array, a second surface of the first precision alignment element being secured to the probe bracket;a second transducer array secured to a substantially planar plate-shaped second precision alignment element by a layer of a solidified polymer material interposed between a first surface of the second precision alignment element and a first surface of the second transducer array, the second precision alignment element being secured to the probe bracket; anda solidified polymer material disposed in a space between the probe bracket and the probe housing.2. The probe of claim 1 , wherein the first transducer array and the second transducer array are precisely aligned relative to the first precision alignment element and second precision alignment element claim 1 , respectively.3. The probe of claim 1 , wherein the first surface of first transducer array is approximately parallel to a surface defined by transducer elements.4. The probe of claim 1 , wherein the first precision alignment element is secured to the probe ...

Duodenal gastrointestinal devices and related treatment methods

An intragastric device includes an elongated member having a proximal end and a distal end and an anchor connected to the elongated member. The anchor includes a stem, a first arch and a second arch, and a curvilinear element. The stem includes a proximal end and a distal end. The distal end of the stem is attached to the proximal end of the elongated member. Each arch has first and second ends and a proximal peak therebetween. The first end of each arch is attached to the proximal end of the stem, and the second end of each arch extends radially away from the stem. The curvilinear element connects the second end of the first arch to the second end of the second arch.

VESSEL HARVESTER

Apparatus and method for harvesting selected vessels in the body of a patient include manual manipulation of a rigid dissecting endoscope and the reconfiguration thereof to facilitate tissue dissection and tissue dilation in the formation of an anatomical space about the vessel within which side-branch vessels may be manipulated in preparation for severance and removal of the vessel from the anatomical space. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. A blood vessel harvesting system comprising:an elongated tube having a central axis and an optical path extending along the central axis; anda cutting assembly comprising at least one blade disposed to extend longitudinally along an offset axis that is substantially parallel to the central axis of the elongated tube and offset from the central axis of the elongated tube,wherein the at least one blade is moveable relative to the elongated tube to cut a blood vessel that is viewable via the optical path of the elongated tube, andwherein the at least one blade is disposed to move within a perimeter defined by an external surface of a distal end of the elongated tube, wherein movement of the at least one blade within the perimeter includes rotary movement.11. The blood vessel harvesting system according to claim 10 , wherein the at least one blade is rotatable within the perimeter defined by the external surface of the distal end of the elongated tube.12. The blood vessel harvesting system according to claim 10 , wherein the at least one blade comprises an electrode.13. The blood vessel harvesting system according to claim 12 , wherein the electrode is disposed to supply electrical or thermal energy to the blood vessel cut by the at least one blade in order to cauterize the blood vessel.14. The blood vessel harvesting system according to claim 10 , wherein the cutting assembly is a rotary cauterizing and shearing device.15. The blood vessel ...

ENDOSCOPIC PLICATION DEVICES AND METHODS

Described herein are endoscopic plicators passed transorally into the stomach and used to plicate stomach tissue by engaging tissue from inside of the stomach and drawing it inwardly. In the disclosed embodiments, the tissue is drawn inwardly into a vacuum chamber, causing sections of serosal tissue on the exterior of the stomach to be positioned facing one another. The disclosed plicators allow the opposed sections of tissue to be moved into contact with one another, and preferably deliver sutures, staples or other means for maintaining contact between the tissue sections at least until serosal bonds form between them. Each of these steps may be performed wholly from the inside of the stomach and thus can eliminate the need for any surgical or laparoscopic intervention. After one or more plications is formed, medical devices may be coupled to the plication(s) for retention within the stomach. 138.-. (canceled)39. A stapler for fastening tissue , comprising:a first portion including a staple cartridge;a second portion including an anvil;at least one hinge member coupling the first portion and the second portion; anda flexible membrane extending between the first portion and second portion.40. The stapler of claim 39 , wherein the at least one hinge member is movable between an elongated position and an expanded position.41. The stapler of claim 40 , wherein the at least one hinge member includes a central portion claim 40 , and in the expanded position claim 40 , the central portion is positioned radially outward relative to a position of the central portion in the elongated position.42. The stapler of claim 40 , wherein movement of the at least one hinge member from the elongated position to the expanded position corresponds to movement of the first and second portions towards one another.43. The stapler of claim 39 , wherein the flexible membrane at least partially covers the at least one hinge member.44. The stapler of claim 39 , wherein the staple cartridge ...

VESSEL RETRACTOR

A surgical apparatus includes an elongated cannula having an external sidewall surface and a lumen extending between a cannula proximal regional and a cannula distal region, the cannula is further configured to receive an endoscope, and has a handle located at the cannula proximal region, a first wire extending from the cannula distal region and adapted to slide longitudinally with respect to the cannula in both a distal and proximal direction via a control at the handle, and a ring connected to the first wire. The ring has a curved surface with concavity hollowed towards a region of the cannula configured to receive the endoscope. 112-. (canceled)13. A surgical apparatus comprising:an elongated cannula having an external sidewall surface and a lumen extending between a cannula proximal regional and a cannula distal region, the cannula further configured to receive an endoscope;a handle located at the cannula proximal region; anda first wire extending from the cannula distal region and adapted to slide longitudinally with respect to the cannula in both a distal and proximal direction via a control at the handle, anda ring connected to the first wire, the ring having a curved surface with concavity hollowed towards a region of the cannula configured to receive the endoscope.14. The surgical apparatus of claim 13 , wherein the surgical apparatus further comprises a surgical tool within the cannula.15. The surgical apparatus of claim 13 , wherein the ring is a partial ring not forming an entire circular loop.16. The surgical apparatus of claim 13 , wherein the first wire is radially located between an axis of the cannula and the cannula's external sidewall.17. The surgical apparatus of claim 13 , further comprising a second wire extending from the distal region of the cannula claim 13 , the second wire is connected to the ring.18. The surgical apparatus of claim 17 , wherein a portion of the second wire that is located internal to the cannula is generally parallel to a ...

Ophthalmic Delivery Device

The present invention provides a cannulation device for administering an active agent containing composition into the eye. The invention provides methods of treatment of an ocular disease or condition accordingly. The invention also provides a method for injection of a material accordingly. 1. A cannulation device for administering an active agent containing composition to an eye comprising:an elongated body with a hollow needle at a distal end;a cannula comprising an elongated tubular element with an atraumatic distal tip, where the elongated tubular element is configured to conduct light from a proximal portion of the elongated tubular element to the distal tip of the elongated tubular element and where at least a portion of the tubular element is contained in a lumen of the needle prior to deployment;a mechanism to advance the elongated tubular element through the needle;a mechanical coupling element from the mechanism to advance the elongated tubular element to the tubular element; anda connector or an injection port in communication with the proximal end of the tubular element for delivery of an active agent containing composition; wherein:the mechanism to advance the elongated tubular element is activated simultaneous with or subsequent to placement of the distal tip of the needle into the eye; and the mechanism to advance the elongated tubular element acts to advance the tubular element out from the distal end of the needle into the suprachoroidal space or supraciliary space.2. A cannulation device for administering an active agent containing composition to an eye comprising:an elongated body with a hollow needle at a distal end;a cannula comprising an elongated tubular element with an atraumatic distal tip, where the elongated tubular element is configured to conduct light from a proximal portion of the elongated tubular element to the distal tip of the elongated tubular element and where at least a portion of the tubular element is contained in a lumen of ...

HIGH-VOLTAGE CATHETERS FOR SUB-MICROSECOND PULSING

Described herein are flexible catheters adapted to be inserted into a body to deliver high-voltage, fast (e.g., microsecond, sub-microsecond, nanosecond, picosecond, etc.) electrical energy to target tissue. Also disclosed herein systems including these catheters and method of using them to treat tissue. 1. A catheter apparatus for treating tissue , the apparatus comprising:an elongate body comprising: a first conductive layer formed from a first plurality of braided or woven filaments extending down at least a portion of a length of the elongate body; a second conductive layer formed from a second plurality of braided or woven filaments extending concentric to the first conductive layer; wherein the first and second conductive layers are enclosed by a flexible electrically insulating material;a first electrode at a distal end region of the elongate body in electrical communication with the first conductive layer;a second electrode at the distal end region of the elongate body in electrical communication with the second conductive layer; anda high-voltage connector adapted to couple the first and second conductive layers to a pulse generator.2. The apparatus of claim 1 , further comprising a guidewire lumen concentrically surrounded by the first and second conductive layers.3. The apparatus of claim 1 , wherein the first and second electrodes are separated by 0.5 mm or more.4. The apparatus of claim 1 , wherein the first conductive layer comprises a first braid pattern of conductive filaments that varies along the length of the elongate body so that the elongate body is more flexible at the distal end region.5. The apparatus of claim 4 , wherein the first braid pattern has a different braid angle along the length of the elongate body.6. The apparatus of claim 1 , further comprising a bias on an outer surface of the distal end region of the elongate body configured to drive the distal end region of the elongate body against a vessel wall when deployed in a vessel.7. ...

Ophthalmic Drug Compositions

The present invention provides a drug composition comprising particles comprising a biodegradable or bioerodable polymer and a drug, a soluble, biodegradable or bioerodible excipient, a bulking agent and a reconstitution aid. The invention also provides a pharmaceutical formulation and a unit dosage form of the pharmaceutical formulation. The invention provides methods of treatment of a disease or condition accordingly. The invention also provides a drug composition for use in a cannulation device.

Endoscope control devices

Described herein are devices for reversibly constraining an endoscope. Such devices may comprise: a base positionable proximate a patient; a column extending vertically from the base; an arm extending horizontally from the column; and a clamp coupled to the arm. In some embodiments, the clamp comprises a holder comprising an annular ring defining an endoscope receiving area or a first sidewall and a second sidewall together defining an endoscope receiving area. The holder is transitionable between a first configuration in which the annular ring or the first and second sidewall are configured to set apart from an endoscope in the endoscope receiving area and a second configuration in which the annular ring or the first and second sidewall are configured to clamp the endoscope in the endoscope receiving area.

Combined vessel dissection and transection device and method

A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis skewed relative to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. Thus, in operation, when the surgeon locates a vessel and side branch of interest, the surgeon extends the retractor to cradle the vessel in the dissection cradle. Once cradled, the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate the side branch for exposure to the surgical tool. Removable, transparent tips are selectively positioned at the distal end of the cannula for performing dissection and transection via a single cannula. Additionally, the tips are configured to align the apices of the tips with the central axis of the endoscope to maximize the visual field through the tips via the endoscope. Wing-like protrusions on an alternate tip for the cannula facilitate tissue dissection in forming a tunnel in tissue along a target vessel. Swept back forward edges on the wing-like protrusions promote easy tissue dissection using reduced force to advance the cannula and alternate tip through tissue surrounding the target vessel.

Device and method for remote vessel ligation

A retractor and a surgical tool are positioned at the distal end of the cannula. A dissection cradle is located at the distal end of a distal portion of the retractor that is resiliently skewed relative to the cannula axis, and includes two substantially parallel, spaced legs with the retractor shaped in a loop therebetween. The procedure includes locating a vessel and side branch of interest and extending the retractor to retain the vessel in the dissection cradle to urge the vessel away from the axis of the cannula in order to isolate a side branch for exposure to the surgical tool.

Vessel retraction device and method

A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis that can be skewed relative to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. Thus, in operation, a surgeon locates a vessel and side branch of interest and extends the retractor to cradle the vessel in the dissection cradle. Once cradled, the retractor may be deflected to urge the vessel away from the axis of the cannula to isolate the side branch for exposure to the surgical tool. Removable, transparent tips are selectively positioned at the distal end of the cannula for performing dissection and transection via a single cannula. Additionally, the tips are configured to align the apices of the tips with the central axis of the endoscope to maximize the visual field through the tips via the endoscope. Wing-like protrusions on an alternate tip for the cannula facilitate tissue dissection in forming a tunnel in tissue along a target vessel. Swept back forward edges on the wing-like protrusions promote easy tissue dissection using reduced force to advance the cannula and alternate tip through tissue surrounding the target vessel.

Cannula-based surgical instrument

A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a dissection cradle that is resiliently supported along an axis skewed relative to the axis of the cannula. The dissection cradle, in operation, is extended to cradle the target vessel, and the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate a side branch for exposure to a surgical tool. The retractor includes a hollow support and a spray nozzle disposed in the distal end of the retractor to form an irrigation system and lens washer that can be selectively positioned to direct the spray of irrigation fluid at a remote surgical site or at an endoscopic lens.

Instrument and method for remotely manipulating a tissue structure

A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a dissection cradle that is resiliently supported along an axis skewed relative to the axis of the cannula. The dissection cradle, in operation, is extended to cradle the target vessel, and the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate a side branch for exposure to a surgical tool. The retractor includes a hollow support and a spray nozzle disposed in the distal end of the retractor to form an irrigation system and lens washer that can be selectively positioned to direct the spray of irrigation fluid at a remote surgical site or at an endoscopic lens.

Device and method for remote vessel ligation

A retractor and a surgical tool are positioned at the distal end of the cannula. A dissection cradle is located at the distal end of a distal portion of the retractor that is resiliently skewed relative to the cannula axis, and includes two substantially parallel, spaced legs with the retractor shaped in a loop therebetween. The procedure includes locating a vessel and side branch of interest and extending the retractor to retain the vessel in the dissection cradle to urge the vessel away from the axis of the cannula in order to isolate a side branch for exposure to the surgical tool.

Vessel retractor

A surgical apparatus includes an elongate cannula having a lumen extending therein between proximal and distal ends, a retractor disposed to slide within the lumen to extend a distal end thereof beyond the distal end of the cannula, an angling device connected to the retractor near the distal end of the retractor and extending within the cannula toward the proximal end thereof for selectively deflecting the distal end of the retractor away from a central axis of the cannula in response to manual manipulation of the angling device from near the proximal end of the cannula, wherein the distal end of the retractor is configured to move, upon extension, an object away from the central axis of the cannula.

Flexible lifting apparatus

A lifting apparatus for deployment through a laparoscopic incision in a body wall to apply an external lifting force over a large area of the body wall. The apparatus provides a broad lifting surface that is capable of applying a lifting force of at least 40 pounds (180 Newtons) to an area of a body wall sufficiently extensive to reduce the lifting pressure exerted on the body wall to well below that which could cause pressure trauma to the body wall, yet delivers this broad lifting surface through the body wall via an incision about 14 mm long. The apparatus comprises a body wall engaging element capable of passing in a packaged state through the laparoscopic incision, and being inflatable to an inflated state. In the inflated state, the body wall engaging element is substantially toroidal, provides a broad lifting face, and bounds a central hole. The body wall engaging element includes an equatorial portion facing into the central hole. The apparatus also includes a flexible lifting element that has a flexible portion capable of passing through the laparoscopic incision. The flexible portion is attached to the equatorial portion of the body wall engaging element and extends from the equatorial portion towards the broad lifting face. The flexible lifting element also includes an adapter, connected to part of the flexible portion remote from the equatorial portion of the body wall engaging element, that receives the external lifting force and transfers the external lifting force to the flexible portion.

Multiple aperture ultrasound array alignment fixture

Endoscopic inflatable retraction device for separating layers of tissue

Multiple aperture ultrasound array alignment fixture

Increasing the effective aperture of an ultrasound imaging probe by including more than one probe head and using the elements of all of the probes to render an image can greatly improve the lateral resolution of the generated image. In order to render an image, the relative positions of all of the elements must be known precisely. A calibration fixture is described in which the probe assembly to be calibrated is placed above a test block and transmits ultrasonic pulses through the test block to an ultrasonic sensor. As the ultrasonic pulses are transmitted though some or all of the elements in the probe to be tested, the differential transit times of arrival of the waveform are measured precisely. From these measurements the relative positions of the probe elements can be computed and the probe can be aligned.

Endoscopic plication devices and methods

Described herein are endoscopic plicators passed transorally into the stomach and used to plicate stomach tissue by engaging tissue from inside of the stomach and drawing it inwardly. In the disclosed embodiments, the tissue is drawn inwardly into a vacuum chamber, causing sections of serosal tissue on the exterior of the stomach to be positioned facing one another. The disclosed plicators allow the opposed sections of tissue to be moved into contact with one another, and preferably deliver sutures, staples or other means for maintaining contact between the tissue sections at least until serosal bonds form between them. Each of these steps may be performed wholly from the inside of the stomach and thus can eliminate the need for any surgical or laparoscopic intervention. After one or more plications is formed, medical devices may be coupled to the plication(s) for retention within the stomach.

Flexible lifting apparatus

A method of packaging a lifting apparatus for deployment through a laparoscopic incision, the method comprising the steps of: providing a lifting apparatus comprising a flat, substantially circular or elliptical body wall engaging element having a center, an outer periphery, and opposed faces, and having a flexible lifting element attached to approximately the center and extending from one of the faces; providing an elongate pouch having an open end and having on one side a central aperture and on the other side a longitudinal line of perforations; rolling the body wail engaging element from diametrically opposed points on the outer periphery towards the center, the body wall engaging element, alter rolling, being substantially cylindrical; threading the flexible lifting element into the open end of the pouch and out of the central aperture of the pouch; and inserting the rolled body wall engaging clement into the pouch.

Seal accomodating diametrical range of surgical instruments

A seal (10) for use with a surgical instrument to provide a gas tight seal with the instrument having a diameter within a wide range of diameters. The seal (10) comprises a seal body (30), an instrument seal (32), and a laterally compliant seal mounting (34). The seat body (30) includes a bore through which the instrument is passed. The instrument seal (32) is made of an elastic material. The instrument seal (32) extends radially outwards from an instrument port (38) formed in the instrument seal through which the instrument is passed, and also extends axially from the instrument port (38) in the direction opposite to that in which the instrument is passed through the instrument port. The laterally compliant seal mounting (34) mounts the instrument seal to the seal body (30), forms a gas tight seal between the instrument seal and the seal body, and allows the instrument seal to move freely laterally in response to lateral movement of the instrument.

Termination devices and related methods

Devices and methods for locking and/or cutting tethers during a tissue modification procedure are described. In some variations, a tether may be used to tighten tissue by bringing two pieces or sections of the tissue together. The tether, which may be under tension, may be locked to maintain the tension, and excess tether may be severed, using one or more of the devices and/or methods. The devices and/or methods may be used, for example, in minimally invasive procedures.

Electrocautery Surgical Scissors

Surgical apparatus includes bipolar electrodes and tissue-shearing blades configured to electrically contact tissue for electrocauterization thereof prior to shearing contact of the cutting blades with the tissue over wide angles of presentation of the tissue to the electrodes and blades. Extensions or protrusions disposed along facing edges of the electrodes separate the level at which tissue is electrically contacted by the electrodes from the level at which tissue is sheared by the cutting blades.

Endoscopic inflatable retraction devices for separating layers of tissue, and methods of using

An apparatus for separating a first layer of tissue, such as the peritoneum, from a second layer of tissue, such as the properitoneal fascia. The apparatus includes a main envelope that defines a main inflatable chamber. The apparatus also includes an introducing device that introduces the main envelope in a collapsed state between the first layer of body tissue and the second layer of tissue. The introducing device also inflates the main envelope into an expanded state to separate the first layer of tissue from the second layer of tissue, and to create a working space between the two layers of tissue. Finally, the apparatus includes an insufflating device with a gas-tight seal that introduces insufflation gas into the working space between the two layers of tissue to maintain the working space after at least partial deflation of the main envelope.

Universal multiple aperture medical ultrasound probe

A Multiple Aperture Ultrasound Imaging (MAUI) probe or transducer is uniquely capable of simultaneous imaging of a region of interest from separate physical apertures. Construction of probes can vary by medical application. That is, a general radiology probe can contain multiple transducers that maintain separate physical points of contact with the patient's skin, allowing multiple physical apertures. A cardiac probe may contain only two transmitters and receivers where the probe fits simultaneously between two or more intracostal spaces. An intracavity version of the probe can space transmit and receive transducers along the length of the wand, while an intravenous version can allow transducers to be located on the distal length the catheter and separated by mere millimeters. Algorithms can solve for variations in tissue speed of sound, thus allowing the probe apparatus to be used virtually anywhere in or on the body.

Method and inflatable chamber apparatus for separating layers of tissue

This invention is an apparatus for tissue dissection and instrument anchoring, including a dissection balloon (512) having a viewing window (508) at its distal end, or including an anchoring dissection balloon having a non-uniform elasticity selected to achieve desired inflation shape and pressure characteristics. The window, which can be a wide angle lens, is transparent and sufficiently strong to retain a desired optical shape while being pushed against tissue layers by a rigid instrument (515) deployed within the balloon. In preferred embodiments, the instrument includes a long necked dissection balloon deployed through a cannula, and a housing (513) to which the dissection balloon's mouth is attached. In accordance with a method of use of the invention, the distal end of the balloon is inserted between tissue layers and inflated to dissect the tissue layers.

Introducer sheath fin design

Aspects of a sheath are disclosed herein including a radially expandable outer cylinder and including a plurality of sheath fins distributed circumferentially about the inner surface of the central lumen of the sheath. Each of the fins extends along a length of the inner surface of the sheath and when the sheath not expanded, the form a continuous inner surface of the sheath lumen. Aspects also include a sheath that includes a radially expandable cylindrical outer layer a stiff inner member, an inner liner layer coupled to the inner surface of the stiff inner member; and an outer liner layer disposed between an outer surface of the stiff inner member and an inner surface of the outer layer.

Vessel isolating retractor cannula and method

Seal accomodating diametrical range of surgical instruments

A seal (10) for use with a surgical instrument to provide a gas tight seal with the instrument having a diameter within a wide range of diameters. The seal (10) comprises a seal body (30), an instrument seal (32), and a laterally compliant seal mounting (34). The seat body (30) includes a bore through which the instrument is passed. The instrument seal (32) is made of an elastic material. The instrument seal (32) extends radially outwards from an instrument port (38) formed in the instrument seal through which the instrument is passed, and also extends axially from the instrument port (38) in the direction opposite to that in which the instrument is passed through the instrument port. The laterally compliant seal mounting (34) mounts the instrument seal to the seal body (30), forms a gas tight seal between the instrument seal and the seal body, and allows the instrument seal to move freely laterally in response to lateral movement of the instrument.

Combined vessel dissection and transection device and method

Flexible lifting apparatus

A method of packaging a lifting apparatus for deployment through a laparoscopic incision, the method comprising the steps of: providing a lifting apparatus comprising a flat, substantially circular or elliptical body wall engaging element having a center, an outer periphery, and opposed faces, and having a flexible lifting element attached to approximately the center and extending from one of the faces; providing an elongate pouch having an open end and having on one side a central aperture and on the other side a longitudinal line of perforations; rolling the body wail engaging element from diametrically opposed points on the outer periphery towards the center, the body wall engaging element, alter rolling, being substantially cylindrical; threading the flexible lifting element into the open end of the pouch and out of the central aperture of the pouch; and inserting the rolled body wall engaging clement into the pouch.

Multiple aperture ultrasound array alignment fixture

Increasing the effective aperture of an ultrasound imaging probe by including more than one probe head and using the elements of all of the probes to render an image can greatly improve the lateral resolution of the generated image. In order to render an image, the relative positions of all of the elements must be known precisely. A calibration fixture is described in which the probe assembly to be calibrated is placed above a test block and transmits ultrasonic pulses through the test block to an ultrasonic sensor. As the ultrasonic pulses are transmitted though some or all of the elements in the probe to be tested, the differential transit times of arrival of the waveform are measured precisely. From these measurements the relative positions of the probe elements can be computed and the probe can be aligned.

Flexible catheters and related methods

Described herein are various embodiments of flexible catheters comprising one or more flexibility regions. In one embodiment, a catheter comprises an elongate body having a proximal segment and a distal segment; a first lumen defined by the elongate body and configured for drainage of a liquid from a bodily region; and a plurality of flexibility regions on or in the distal segment of the elongate body. The plurality of flexibility regions, collectively, is configured to passively bend anteriorly. Further, at least one of the plurality of flexibility regions has a cut depth percentage of about 50% to about 75% of a wall thickness of the elongate body. The features and arrangement of the flexibility regions described herein result in the catheter requiring reduced force during insertion into a bodily lumen.

Flexible hebevorrichtung

Treating tissue pulsed energy using high-voltage catheters

Flexible catheters adapted to be inserted into a body to deliver high-voltage, fast (e.g., microsecond, sub-microsecond, nanosecond, picosecond, etc.) electrical energy to target tissue may include a plurality of conductive layers, that may be coaxial. These catheters and method of using them to treat tissue are configured to reduce or avoid arcing.

Duodenal gastrointestinal devices and delivery mechanisms

A system for delivering an endolumenal device through an endoscope includes a delivery tool and an adaptor. The delivery tool has an elongate tube configured to hold a portion of the endolumenal device therein and a first connecting feature on a distal end of the elongate tube. The adaptor is configured to attach to a handle of the endoscope. The adaptor includes a channel therethrough and a second connecting feature configured to mate with the first connecting feature of the delivery tool. The elongate tube of the delivery tool is configured to align with the channel of the adaptor when the first and second connecting features are mated.

Endoscope control devices

Endoscope control methods

Described herein are methods for reversibly constraining an endoscope. A method may include positioning an elongate medical device or endoscope in a holder of a clamp. A method may include actuating the holder such that one or more of a first sidewall and a second sidewall of the holder move to a clamped configuration to exert a force on the endoscope. A method may include adjusting a pad of the clamp from a first position to a second position where the pad is in contact with the endoscope in the second position.

Endoscope control devices

Described herein are devices for reversibly constraining an endoscope. Such devices may comprise: a base positionable proximate a patient; a column extending vertically from the base; an arm extending horizontally from the column; and a clamp coupled to the arm. In some embodiments, the clamp comprises a holder comprising an annular ring defining an endoscope receiving area or a first sidewall and a second sidewall together defining an endoscope receiving area. The holder is transitionable between a first configuration in which the annular ring or the first and second sidewall are configured to set apart from an endoscope in the endoscope receiving area and a second configuration in which the annular ring or the first and second sidewall are configured to clamp the endoscope in the endoscope receiving area.

Adjustable-shape snare for endoscopic procedures

An endoscopic snare tool with a loop wire positioned substantially within a catheter shaft and capable of deploying from and retracting into a distal end thereof at a consistent shape and angle. The shaft may include a guide tip with bisecting bores which guides the loop wire as it deploys or retracts from a lateral position of the shaft so that a consistent shape and angle are maintained. The loop wire may be formed from a composite design or a specially-treated monofilament to further maintain the shape of the loop during reduction or expansion and may further include a torsion spring positioned at a tip of the loop wire to additionally maintain the circular shape of the loop and aid in excision of tissue.

Flexible catheters and related methods

Described herein are various embodiments of flexible catheters comprising one or more flexibility regions. In one embodiment, a catheter comprises an elongate body having a proximal segment and a distal segment; a first lumen defined by the elongate body and configured for drainage of a liquid from a bodily region; and a plurality of flexibility regions on or in the distal segment of the elongate body. The plurality of flexibility regions, collectively, is configured to passively bend anteriorly. Further, at least one of the plurality of flexibility regions has a cut depth percentage of about 50% to about 75% of a wall thickness of the elongate body. The features and arrangement of the flexibility regions described herein result in the catheter requiring reduced force during insertion into a bodily lumen.

Flexible catheters and related methods

Described herein are various embodiments of flexible catheters comprising one or more flexibility regions. In one embodiment, a catheter comprises an elongate body having a proximal segment and a distal segment; a first lumen defined by the elongate body and configured for drainage of a liquid from a bodily region; and a plurality of flexibility regions on or in the distal segment of the elongate body. The plurality of flexibility regions, collectively, is configured to passively bend anteriorly. Further, at least one of the plurality of flexibility regions has a cut depth percentage of about 50% to about 75% of a wall thickness of the elongate body. The features and arrangement of the flexibility regions described herein result in the catheter requiring reduced force during insertion into a bodily lumen.

Dichtung für alle durchmesserbereiche chirurgischer instrumente

Ophthalmic Drug Compositions

The present invention provides a drug composition comprising particles comprising a biodegradable or bioerodable polymer and a drug, a soluble, biodegradable or bioerodible excipient, a bulking agent and a reconstitution aid. The invention also provides a pharmaceutical formulation and a unit dosage form of the pharmaceutical formulation. The invention provides methods of treatment of a disease or condition accordingly. The invention also provides a drug composition for use in a cannulation device.

High-voltage catheters for sub-microsecond pulsing

Flexible catheters adapted to be inserted into a body to deliver high-voltage, fast (e.g., microsecond, sub-microsecond, nanosecond, picosecond, etc.) electrical energy to target tissue may include a plurality of conductive layers, that may be coaxial. These catheters and method of using them to treat tissue are configured to reduce or avoid arcing.

Duodenal gastrointestinal devices and related treatment methods

An intragastric device includes an elongated member having a proximal end and a distal end and an anchor connected to the elongated member. The anchor includes a stem, a first arch and a second arch, and a curvilinear element. The stem includes a proximal end and a distal end. The distal end of the stem is attached to the proximal end of the elongated member. Each arch has first and second ends and a proximal peak therebetween. The first end of each arch is attached to the proximal end of the stem, and the second end of each arch extends radially away from the stem. The curvilinear element connects the second end of the first arch to the second end of the second arch.

Dispositivos gastrointestinales duodenales y metodos de tratamiento relacionados.

Un dispositivo intragástrico incluye un miembro alargado que tiene un extremo próximo y un extremo distal y un anclaje conectado al miembro alargado. El anclaje incluye un vástago, un primer arco y un segundo arco y un elemento curvilíneo. El vástago incluye un extremo próximo y un extremo distal. El extremo distal del vástago se une al extremo próximo del miembro alargado. Cada arco tiene un primer extremo y un segundo extremo y un pico próximo entre los mismos. El primer extremo de cada arco se une al extremo próximo del vástago y el segundo extremo de cada arco se extiende radialmente lejos del vástago. El elemento curvilíneo conecta el segundo extremo del primer arco al segundo extremo del segundo arco.

Duodenal gastrointestinal devices and related treatment methods

Duodenal gastrointestinal devices and related treatment methods

Duodenal gastrointestinal devices and related treatment methods

An intragastric device includes an elongated member having a proximal end and a distal end and an anchor connected to the elongated member. The anchor includes a stem, a first arch and a second arch, and a curvilinear element. The stem includes a proximal end and a distal end. The distal end of the stem is attached to the proximal end of the elongated member. Each arch has first and second ends and a proximal peak therebetween. The first end of each arch is attached to the proximal end of the stem, and the second end of each arch extends radially away from the stem. The curvilinear element connects the second end of the first arch to the second end of the second arch.

Duodenal gastrointestinal devices and related treatment methods

An intragastric device includes an elongated member having a proximal end and a distal end and an anchor connected to the elongated member. The anchor includes a stem, a first arch and a second arch, and a curvilinear element. The stem includes a proximal end and a distal end. The distal end of the stem is attached to the proximal end of the elongated member. Each arch has first and second ends and a proximal peak therebetween. The first end of each arch is attached to the proximal end of the stem, and the second end of each arch extends radially away from the stem. The curvilinear element connects the second end of the first arch to the second end of the second arch.

High-voltage catheters for sub-microsecond pulsing and methods of their use

Flexible catheters adapted to be inserted into a body to deliver high-voltage, fast (e.g., microsecond, sub-microsecond, nanosecond, picosecond, etc.) electrical energy to target tissue may include a plurality of conductive layers, that may be coaxial. These catheters and method of using them to treat tissue are configured to reduce or avoid arcing.

眼科用送達装置

【課題】活性成分含有組成物を眼に投与するための挿管装置を提供する。【解決手段】装置は、近位筒端キャップ2を有する中空筒1を備える。プランジャー3は、摺動可能に前記筒端キャップを貫通している。前記プランジャーは、柔軟性カニューレ管状要素5を取り付けた管腔4を有する。柔軟性カニューレ5は、プランジャー3の所定位置に固定される。前記柔軟性カニューレの先端は、丸みを帯びた非侵襲性先端6を持つ。プランジャー圧縮スプリング7は、プランジャー3および柔軟性カニューレ5に対して、遠位方向の力を付与する。柔軟性カニューレ5は、プランジャー圧縮スプリング7の力を受けて遠位に移動する。プランジャー3の近位末端は、ルアー継手9などの接点で終わり、プランジャー管腔4および柔軟性カニューレ5を通って、投与用物質の送達を可能にする。【選択図】図１

Ophthalmic delivery device

The present invention provides a cannulation device for administering an active agent containing composition into the eye. The invention provides methods of treatment of an ocular disease or condition accordingly. The invention also provides a method for injection of a material accordingly.

Flexible catheters and related methods

Described herein are various embodiments of flexible catheters comprising one or more flexibility regions. In one embodiment, a catheter comprises an elongate body having a proximal segment and a distal segment; a first lumen defined by the elongate body and configured for drainage of a liquid from a bodily region; and a plurality of flexibility regions on or in the distal segment of the elongate body. The plurality of flexibility regions, collectively, is configured to passively bend anteriorly. Further, at least one of the plurality of flexibility regions has a cut depth percentage of about 50% to about 75% of a wall thickness of the elongate body. The features and arrangement of the flexibility regions described herein result in the catheter requiring reduced force during insertion into a bodily lumen.

Cannula provided with irrigation means

A retractor (112) and a surgical tool are positioned within a cannula (100), and a dissection cradle (116) of the retrator is positioned at the distal end of the cannula. The retractor includes a first portion (110) with an axis approximately parrallel to the axis of the cannula and a second portion (114) with an axis skewed relative to the axis of the cannula. The dissection cradle may include two substantially parallel, spaced legs (141, 142) with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. One of the legs supporting the retractor is hollow (1100) and includes a spray nozzle (1104) disposed in the distal end of the retractor to form an irrigation system. The spray nozzle on the retractor may be positioned to wash the endoscope lens, or upon selective extension of the retractor out of the cannula, the spray nozzle may be positioned to direct the spray of irrigation fluid at a remote surgical site.

High-voltage catheters for sub-microsecond pulsing

Described herein are flexible catheters adapted to be inserted into a body to deliver highvoltage, fast (e.g., microsecond, sub-microsecond, nanosecond, picosecond, etc.) electrical energy to target tissue. Also disclosed herein systems including these catheters and method of using them to treat tissue.

Ophthalmic delivery device

The present invention provides a cannulation device for administering an active agent containing composition into the eye. The invention provides methods of treatment of an ocular disease or condition accordingly. The invention also provides a method for injection of a material accordingly.

Endoskopische,aufblasbare retraktionsvorrichtungen zum trennen von gewebeschichten

Ophthalmic delivery device

The present invention provides a cannulation device for administering an active agent containing composition into the eye. The invention provides methods of treatment of an ocular disease or condition accordingly. The invention also provides a method for injection of a material accordingly.

Devices and methods for at least partially occluding a bodily lumen

Described herein are devices and related methods for occluding at least a portion of a bodily lumen during a procedure. In some embodiments, the device includes an inner shaft defining a lumen therethrough and a first aperture; and an outer shaft including a flexible member and defining a lumen therethrough and a second aperture positioned proximally on the outer shaft relative to the flexible member. The inner shaft extends through the lumen of the outer shaft, such that at least a portion of the outer shaft is axially translatable toward and away from the distal portion of the inner shaft. The flexible member is movable between an unexpanded configuration and an expanded configuration when at least a portion of the outer shaft is translated axially toward or away from the distal portion of the inner shaft. In some embodiments, the device and methods are used for endoscopy procedures.

Devices and methods for at least partially occluding a bodily lumen

Endoscopic Loop Systems and Methods of Use

The present embodiments provide apparatus and methods for treating tissue by applying a force to the tissue. In one embodiment, the apparatus comprises a deployable segment having a loop member formed at a distal region of the deployable segment. A frame is operatively coupled to the loop member. In some embodiments, the frame may be operatively coupled to the loop member by at least three lugs; each lug has a slit, and the loop member extends through each lug slit. The loop member includes a gauge diameter, the slit has an opening, and the slit opening may be narrower than the loop member gauge diameter.

Ophthalmic drug compositions

OPHTHALMIC DRUG COMPOSITIONS 5 The present invention provides a drug composition comprising particles comprising a biodegradable or bioerodable polymer and a drug, a soluble, biodegradable or bioerodible excipient, a bulking agent and a reconstitution aid. The invention also provides a pharmaceutical formulation and a unit dosage form of the pharmaceutical formulation. The invention provides methods of treatment of a disease or condition accordingly. The invention 10 also provides a drug composition for use in a cannulation device.

Termination devices and related methods

Devices and methods for locking and/or cutting tethers during a tissue modification procedure are described. In some variations, a tether may be used to tighten tissue by bringing two pieces or sections of the tissue together. The tether, which may be under tension, may be locked to maintain the tension, and excess tether may be severed, using one or more of the devices and/or methods. The devices and/or methods may be used, for example, in minimally invasive procedures.