Powered endoscopic suturing device

Patent metadata

Field	Value
Publication number	US-11096683-B2
Application number	US-201916372778-A
Country	US
Kind code	B2
Filing date	Apr 2, 2019
Priority date	Dec 1, 2015
Publication date	Aug 24, 2021
Grant date	Aug 24, 2021

Abstract

An endoscopic stitching device includes an actuation shaft, a tool assembly, and a drive assembly. The tool assembly includes a suture needle and a pair of jaws transitionable between open and closed positions. Each jaw includes a needle engaging blade slidably supported thereon. Each needle engaging blade is transitionable between an extended position in which the needle engaging blade engages the suture needle and a retracted position in which the needle engaging blade is disengaged from the suture needle. The drive assembly includes first, second, and third electrical actuators. The first actuator is operatively coupled with the actuation shaft to cause axial displacement of the actuation shaft. The axial displacement of the actuation shaft causes opening and closing of the pair of jaws. The second and third actuators are operatively coupled with the needle engaging blades to provide axial displacement of the needle engaging blades.

First claim

What is claimed is:

1. An endoscopic stitching device comprising:
a tool assembly including a suture needle and a pair of jaws transitionable between open and closed positions, each jaw of the pair of jaws including a needle engaging blade slidably supported thereon, each needle engaging blade being transitionable between an extended position in which the needle engaging blade engages the suture needle and a retracted position in which the needle engaging blade is disengaged from the suture needle;
a drive assembly including:
first and second lead screws;
first and second nuts; and
first, second, and third electrical actuators, the first and second lead screws operatively connected to the respective first and second electrical actuators, the first and second nuts operatively connected to the respective needle engaging blades such that actuation of the first electrical actuator rotates the first lead screw, which in turn, causes the axial displacement of one of the needle engaging blades and actuation of the second electrical actuator rotates the second lead screw, which in turn, causes the axial displacement of the other one of the needle engaging blades; and

an actuation shaft operatively coupled with the third electrical actuator to cause axial displacement of the actuation shaft, the axial displacement of the actuation shaft causing opening and closing of the pair of jaws.

2. The endoscopic stitching device according to claim 1 , wherein at least one of the first, second, or third electrical actuators is a servomotor.

3. The endoscopic stitching device according to claim 1 , wherein the drive assembly further includes a third lead screw operatively connected to the third electrical actuator, and a third nut operatively connected to the actuation shaft, wherein actuation of the third electrical actuator causes rotation of the third lead screw, which, in turn, causes the axial displacement of the actuation shaft.

4. The endoscopic stitching device according to claim 1 , wherein the drive assembly further includes a printed circuit board including a microprocessor to control execution of at least one of the first, second, or third electrical actuators.

5. The endoscopic stitching device according to claim 1 , wherein the drive assembly further includes a control interface including first and second buttons, wherein actuation of the first button causes reciprocating axial displacement of the needle engaging blades.

6. The endoscopic stitching device according to claim 5 , wherein actuation of the second button transitions the pair of jaws between the open and closed positions.

7. The endoscopic stitching device according to claim 5 , wherein actuation of the first button transitions the pair of jaws between open and closed positions and causes the reciprocating axial displacement of the needle engaging blades.

8. The endoscopic stitching device according to claim 1 , wherein the drive assembly further includes a battery pack to supply power to the first, second, and third electrical actuators.

9. The endoscopic stitching device according to claim 1 , wherein each jaw of the pair of jaws defines a needle receiving recess dimensioned to receive a portion of the suture needle.

10. An endoscopic stitching device comprising:
a handle assembly including a drive assembly including first, second, and third electrical actuators;
a tool assembly operatively coupled to the handle assembly, the tool assembly including a suture needle and a pair of jaws pivotally associated with one another, each jaw of the pair of jaws including a needle engaging blade slidably supported thereon, each needle engaging blade transitionable between an extended position in which the needle engaging blade engages the suture needle and a retracted position in which the needle engaging blade is disengaged from the suture needle, the first and second electrical actuators operatively coupled with the respective needle engaging blades to provide axial displacement of the needle engaging blades; and
an elongate member extending from the handle assembly and supporting the tool assembly, the elongate member including an actuation shaft operatively coupled with the third electrical actuator such that axial displacement of the actuation shaft results in opening and closing of the pair of jaws.

11. The endoscopic stitching device according to claim 10 , wherein at least one of the first, second, or third electrical actuators is a servomotor.

12. The endoscopic stitching device according to claim 10 , wherein the drive assembly further includes a first lead screw and a first nut, the first electrical actuator operatively connected to the first lead screw, the first nut being operatively connected to one of the needle engaging blades, wherein actuation of the first electrical actuator causes rotation of the first lead screw, which, in turn causes the axial displacement of the one of the needle engaging blades.

13. The endoscopic stitching device according to claim 12 , wherein the drive assembly further includes a second lead screw and a second nut, the second electrical actuator operatively connected to the second lead screw, the second nut being operatively connected to the other one of the needle engaging blades, wherein actuation of the second electrical actuator causes rotation of the second lead screw, which, in turn causes the axial displacement of the other one of the needle engaging blades.

14. The endoscopic stitching device according to claim 10 , wherein the drive assembly further includes a third lead screw and a third nut, the third electrical actuator being operatively connected to the third lead screw, the third nut being operatively connected to the actuation shaft, wherein actuation of the third electrical actuator causes rotation of the third lead screw, which, in turn causes the axial displacement of the actuation shaft.

15. The endoscopic stitching device according to claim 10 , wherein the drive assembly further includes a printed circuit board including a microprocessor to control execution and sequence of the at least one of first, second, or third electrical actuators.

16. The endoscopic stitching device according to claim 10 , wherein the drive assembly further includes a battery pack to supply power to the first, second, and third electrical actuators.

17. The endoscopic stitching device according to claim 10 , wherein each jaw of the pair of jaws defines a needle receiving recess dimensioned to receive a portion of the suture needle.

18. An endoscopic stitching device comprising:
a tool assembly including a pair of jaws transitionable between open and closed positions, each jaw of the pair of jaws including a needle engaging blade slidably supported thereon, each needle engaging blade being transitionable between extended and retracted positions;
a drive assembly including:
first and second lead screws;
first and second nuts; and
first, second, and third electrical actuators, the first and second lead screws operatively connected to the respective first and second electrical actuators, the first and second nuts operatively connected to the respective needle engaging blades such that actuation of the first electrical actuator rotates the first lead screw, which in turn, causes the axial displacement of one of the needle engaging blades and actuation of the second electrical actuator rotates the second lead screw, which in turn, causes the axial displacement of the other one of the needle engaging blades; and

an actuation shaft operatively coupling the third electrical actuat

Assignees

• Covidien Lp

Inventors

• Marczyk Stanislaw
• Pribanic Russell
• Calderoni Anthony
• Switalski Christopher

Classifications

• A61B17/06066 Primary

  Needles, e.g. needle tip configurations · CPC title

• A61B17/0483

  Hand-held instruments for holding sutures (A61B17/0469 takes precedence; other holders for needles or sutures A61B17/06061; surgical forceps A61B17/28; surgical pincettes A61B17/30) · CPC title

• A61B2017/00367

  Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like · CPC title

• A61B2017/00734

  battery operated · CPC title

• A61B17/0625

  the needle being specially adapted to interact with the manipulator, e.g. being ridged to snap fit in a hole of the manipulator (A61B17/06109 takes precedence) · CPC title