Apparatus for endoscopic procedures

Patent metadata

Field	Value
Publication number	US-9700318-B2
Application number	US-201313859066-A
Country	US
Kind code	B2
Filing date	Apr 9, 2013
Priority date	Apr 9, 2013
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A surgical device is disclosed. The surgical device includes: a jaw assembly including a first jaw and a second jaw moveable relative to the first jaw; and an articulating assembly removably coupled to the proximal end of the jaw assembly, the articulating including a distal joint member, a proximal joint member, and a pivot pin fixedly coupled to the distal joint member and rotatably coupled to the proximal joint member, wherein the jaw assembly and the distal joint member define a first longitudinal axis extending between a proximal end of the jaw assembly and a distal end of the distal joint member, and the proximal joint member defines a second longitudinal axis. The surgical device also includes a first rotatable drive shaft including a first gear element meshingly engaged with a pivoting gear element fixedly coupled to the pivot pin, wherein rotational and longitudinal movement of the first rotatable drive shaft pivots the jaw assembly relative to the proximal joint member about a pivot axis defined by the pivot pin that is perpendicular to the first and second longitudinal axes.

First claim

What is claimed is:

1. A surgical device, comprising: a jaw assembly including a first jaw and a second jaw moveable relative to the first jaw; an articulating assembly removably coupled to a proximal end of the jaw assembly, the articulating assembly including a distal joint member, a proximal joint member, and a pivot pin fixedly coupled to the distal joint member and rotatably coupled to the proximal joint member such that rotation of the pivot pin pivots the distal joint member relative to the proximal joint member, wherein the jaw assembly and the distal joint member define a first longitudinal axis extending between the proximal end of the jaw assembly and a distal end of the distal joint member, and the proximal joint member defines a second longitudinal axis; and a first rotatable drive shaft including a first gear element meshingly engaged with a pivoting gear element fixedly coupled to the pivot pin, wherein rotational movement of the first rotatable drive shaft pivots the jaw assembly relative to the proximal joint member about a pivot axis defined by the pivot pin that is perpendicular to the first and second longitudinal axes.

2. The surgical device according to claim 1 , wherein the first gear element is a worm gear element and the pivoting gear element is a worm wheel drive.

3. The surgical device according to claim 1 , further comprising:
an elongated member coupled to the proximal joint member and including the first rotatable drive shaft.

4. The surgical device according to claim 3 , further comprising:
a handle assembly removably coupled to a proximal end of the elongated member and including at least one motor mechanically coupled to and configured to rotate the first rotatable drive shaft.

5. The surgical device according to claim 1 , wherein the articulating assembly further includes a socket rotatably disposed within the distal joint member, the socket configured to secure the jaw assembly therein.

6. The surgical device according to claim 5 , wherein the jaw assembly further includes:
a drive screw having a threaded portion threadably coupled to a drive beam such that rotation of the drive screw imparts longitudinal movement of the drive beam, which in turn moves the second jaw relative to the first jaw.

7. The surgical device according to claim 6 , further comprising:
a second rotatable drive shaft including a second gear element meshingly engaged with a first transfer gear element rotatably disposed about the pivot pin, wherein the first transfer gear element is mechanically engaged with the drive screw, wherein rotation of the second rotatable drive shaft moves the second jaw relative to the first jaw.

8. The surgical device according to claim 7 , wherein the second gear element and the first transfer gear element are bevel gear elements, wherein the second gear element is configured to rotate about the second longitudinal and the first transfer gear element is configured to rotate about the pivot axis.

9. The surgical device according to claim 6 , further comprising a drive linkage, wherein the drive linkage is coupled to a distal end of the drive screw.

10. The surgical device according to claim 9 , wherein the drive screw defines a longitudinal axis and the drive linkage is disposed off-axis in relation to the drive screw.

11. The surgical device according to claim 9 , further comprising:
a coupling member disposed within the socket and configured to rotate therein, the coupling member is mechanically coupled to the first transfer gear element via a first plurality of gears, wherein the coupling member is coupled to a proximal end of the drive linkage upon insertion of the jaw assembly into the socket.

12. The surgical device according to claim 5 , further comprising:
a third rotatable drive shaft including a third gear element meshingly engaged with a second transfer gear element rotatably disposed about the pivot pin, wherein the second transfer gear element is mechanically engaged with the socket such that rotation of the third rotatable drive shaft rotates the jaw assembly about the first longitudinal axis.

13. The surgical device according to claim 12 , further comprising:
a coupling shaft disposed within the distal joint member, the coupling shaft mechanically coupled to the second transfer gear element via a second plurality of gears, wherein the coupling shaft is fixedly coupled to the socket.

14. The surgical device according to claim 12 , wherein the third gear element and the second transfer gear element are bevel gear elements, wherein the third gear element is configured to rotate about the second longitudinal and the second transfer gear element is configured to rotate about the pivot axis.

15. The surgical device according to claim 14 , further comprising:
a lockout mechanism including a locking member biased in a proximal direction by a spring, the locking member including at least one lock lug meshingly engaged with at least one gear of the second plurality of gears.

16. The surgical device according to claim 15 , wherein the lockout mechanism further includes a push rod that is pushed distally upon insertion of the jaw assembly into the socket thereby disengaging the locking member from the at least one gear of the second plurality of gears.

17. The surgical device according to claim 5 , wherein the jaw assembly includes at least one post disposed at a proximal end thereof configured and dimensioned to be inserted into at least one bore defined within the socket.

18. The surgical device according to claim 1 , wherein the distal joint member defines a bore including a bore facet and the pivot pin includes a pin facet, such that when the pivot pin is received within the bore, the pin facet is engaged with the bore facet to rotate the distal joint member in response to rotation of the pivot pin.

19. A surgical device, comprising:
a jaw assembly including a first jaw and a second jaw moveable relative to the first jaw;
an articulating assembly removably coupled to the proximal end of the jaw assembly, the articulating assembly including:
a distal joint member;
a socket rotatably disposed within the distal joint member, the socket configured to secure the jaw assembly therein;
a proximal joint member; and
a pivot pin fixedly coupled to the distal joint member and rotatably coupled to the proximal joint member such that rotation of the pivot pin pivots the distal joint member relative to the proximal joint member, wherein the jaw assembly and the distal joint member define a first longitudinal axis extending between a proximal end of the jaw assembly and a distal end of the distal joint member, and the proximal joint member defines a second longitudinal axis; and

a drive shaft comprising a gear element meshingly engaged with a transfer gear element rotatably disposed about the pivot pin, wherein the transfer gear element is mechanically engaged with the socket such that rotation of the drive shaft rotates the jaw assembly about the first longitudinal axis.

20. The surgical device according to claim 19 , further comprising:
an elongated member coupled to the proximal joint member and including the first rotatable drive shaft.

21. The surgical device according to claim 20 , further comprising:
a handle assembly removably coupled to a proximal end of the elongated member and including at least one motor mechanically coupled to and configured to rotate the drive shaft.

22. The surgical device according to claim 19 , wher

Assignees

• Covidien Lp

Inventors

• Scirica Paul A
• Williams Justin
• Slisz Kevin Robert

Classifications

• A61B2017/2927

  the angular position of the head being adjustable with respect to the shaft · CPC title

• A61B2017/2901

  Details of shaft · CPC title

• A61B2017/00734

  battery operated · CPC title

• A61B2017/00473

  Distal part, e.g. tip or head (A61B2017/00464 takes precedence) · CPC title

• A61B2017/0046

  with a releasable handle; with handle and operating part separable · CPC title