21-06-2018 дата публикации
Номер: US20180168670A1
Принадлежит:
The invention provides an instrument for endoscopic surgery comprising a shaft tube (), a pull rod () which can move axially inside the shaft tube () and jaws () located at the distal end which are mounted on a single hinge pin () and can be pivoted towards each other. Relative axial motion of the shaft tube () and the pull rod () is converted into the pivot motion of the jaws () via contact eccentric to the hinge pin (). The hinge pin () is mounted on the distal end of the pull rod (). Each jaw () has a nib () which protrudes radially eccentric to the hinge pin (). Each nib () engages in a cut-out () in a sheath (). The cut-outs () are covered by the shaft tube (). 2. Instrument as in claim 1 ,{'b': 40', '50', '12', '12', '28, 'characterised in that a shaft retainer (, ) fitted to the pull rod () serves as a limit stop to limit distal movement of the pull rod () when it is pushed in a distal direction inside the sheath ().'}3. Instrument as in claim 2 ,{'b': '40', 'characterised in that the shaft retainer () is a circlip.'}4. Instrument as in{'b': 50', '12', '50', '136', '128', '12, 'characterised in that the shaft retainer is a limit pin () through the pull rod (), the pin () having at least one protruding end accommodated in an aperture () in the sheath (), to limit distal movement of the pull rod ().'}5. Instrument as in claim 4 ,{'b': 50', '12', '136', '128, 'characterised in that the limit pin () has each end protruding from the pull rod () and accommodated in an aperture () in the sheath ().'}6. Instrument as in of claim 1 ,{'b': 28', '128', '10, 'characterised in that the sheath (, ) is screwed, pressed or glued into the shaft tube ().'}7. Instrument as in claim 6 ,{'b': 28', '128', '10', '28', '128', '10, 'characterised in that the sheath (, ) has an external thread which is screwed into an internal thread in the shaft tube (), whereby the thread determines the defined axial position of the sheath(, ) inside the shaft tube ().'}8. Instrument as in claim 1 ...
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