ENDOSCOPIC SURGICAL CLIP APPLIER

• US 20180271526A1
• Filed: 01/05/2018
• Published: 09/27/2018
• Est. Priority Date: 03/22/2017
• Status: Abandoned Application

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Zammataro, Thomas
• Application Number:
  US15/863,827
• Publication Number:
  US 20180271526A1
• Time in Patent Office: Days
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/083 Clips, e.g. resilient
• CPC Class Codes: A61B 17/10 for applying or removing wound clamps, e.g. containing only one clamp or staple A61B17/076 takes precedence; containing multiple wound clamps A61B17/068; Wound clamp magazines containers, packaging elements or packages specially adapted for particular articles or with special means for dispensing contents B65D83/00, B65D85/00
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• CPC Class Codes: A61B 2017/00353 one mechanical instrument performing multiple functions, e.g. cutting and grasping
• CPC Class Codes: A61B 2017/00367 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 Class Codes: A61B 2017/00407 Ratchet means
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable
• CPC Class Codes: A61B 2017/00464 for use with different instruments
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00862 elastic or resilient
• CPC Class Codes: A61B 2017/2902 characterized by features of the actuating rod
• CPC Class Codes: A61B 2017/2929 with a head rotatable about the longitudinal axis of the shaft
• CPC Class Codes: A61B 2034/302 specifically adapted for manipulations within body cavities, e.g. within abdominal or thoracic cavities
• CPC Class Codes: A61B 2090/032 pressure limiting, e.g. hydrostatic
• CPC Class Codes: A61B 34/35 for telesurgery

Abstract

A reposable surgical clip applier is provided and includes a shaft assembly having an elongated shaft and a housing assembly. The housing assembly is disposed about a proximal portion of the elongated shaft and includes a housing and a hub that is operably coupled to the elongated shaft. The housing defines a counterbore. The hub is slidably disposed within the counterbore and defines a throughhole configured to receive the elongated shaft therein. A force applied to the elongated shaft in a distal direction causes the hub to distally advance within the housing. A shaft assembly for use with a reposable surgical clip applier is also provided.

Claims

1. A reposable surgical clip applier, comprising:

a shaft assembly including;

an elongated shaft; and

a housing assembly disposed about a proximal portion of the elongated shaft, the housing assembly including;

a housing defining a counterbore; and

a hub slidably disposed within the counterbore, the hub defining a throughhole configured to receive the elongated shaft therein, wherein the hub is operably coupled to the elongated shaft,

wherein a force applied to the elongated shaft in a distal direction causes the hub to distally advance within the housing.

2. The reposable surgical clip applier according to claim 1, wherein the housing assembly further includes a biasing element interposed between the housing and the hub, wherein the biasing element includes a predetermined spring constant.

3. The reposable surgical clip applier according to claim 2, wherein when a force applied to the elongated shaft exceeds the predetermined spring constant the hub is distally advanced within the housing and compresses the biasing element.

4. The reposable surgical clip applier according to claim 3, wherein the shaft assembly further includes first and second jaw members pivotably disposed on a distal portion of the elongated shaft, the first and second jaw members configured to transition between a first, open position, to a second, approximated position.

5. The reposable surgical clip applier according to claim 4, wherein when the first and second jaw members are inhibited from transitioning to the second, approximated position, the elongated shaft and hub exert a force on the biasing element that exceeds the predetermined spring constant to distally advance the hub within the housing.

6. The reposable surgical clip applier according to claim 5, further including a handle assembly including a housing and a trigger rotatably supported on the handle assembly, the trigger being in mechanical communication with the first and second jaw members.

7. The reposable surgical clip applier according to claim 6, wherein the hub is configured to distally advance a predetermined distance to permit the trigger to return to a first, unactuated position, and therefore, permit the first and second jaw members to return to the first, open, position.

8. The reposable surgical clip applier according to claim 4, wherein the biasing element includes a predetermined spring constant that is greater than a force required to form a surgical clip disposed within the first and second jaw members.

9. The reposable surgical clip applier according to claim 1, wherein the housing defines a pair of transverse through-holes configured to fixedly receive a pair of pins.

10. The reposable surgical clip applier according to claim 9, wherein the hub defines a pair of transverse channels configured to slidably receive the pair of pins.

11. The reposable surgical clip applier according to claim 1, wherein a proximal portion of the elongated shaft defines a flare configured to abut a chamfer defined on a proximal portion of the hub, the flare configured to inhibit distal translation of the elongated shaft relative to the hub.

12. A shaft assembly for use with a reposable surgical clip applier, comprising:

an elongated shaft; and

a housing assembly disposed on a proximal portion of the elongated shaft, the housing assembly including;

a housing defining a counterbore; and

a hub slidably disposed within the counterbore, the hub defining a throughhole configured to receive the elongated shaft therein, wherein the hub is operably coupled to the elongated shaft,

wherein a force applied to the elongated shaft in a distal direction causes the hub to distally advance within the housing.

13. The shaft assembly according to claim 12, wherein the housing assembly further includes a biasing element interposed between the housing and the hub, wherein the biasing element includes a predetermined spring constant.

14. The shaft assembly according to claim 13, wherein when a force applied to the elongated shaft exceeds the predetermined spring constant the hub is distally advanced within the housing and compresses the biasing element.

15. The shaft assembly according to claim 14, wherein the shaft assembly further includes first and second jaw members pivotably disposed on a distal portion of the elongated shaft, the first and second jaw members configured to transition between a first, open position, to a second, approximated position.

16. The shaft assembly according to claim 15, wherein when the first and second jaw members are inhibited from transitioning to the second, approximated position, the elongated shaft and hub exert a force on the biasing element that exceeds the predetermined spring constant to distally advance the hub within the housing.

17. The shaft assembly according to claim 15, wherein the biasing element includes a predetermined spring constant that is greater than a force required to form a surgical clip disposed within the first and second jaw members.

18. The shaft assembly according to claim 12, wherein the housing defines a pair of transverse through-holes configured to fixedly receive a pair of pins.

19. The shaft assembly according to claim 18, wherein the hub defines a pair of transverse channels configured to slidably receive the pair of pins.

20. The shaft assembly according to claim 12, wherein a proximal portion of the elongated shaft defines a flare configured to abut a chamfer defined on a proximal portion of the hub, the flare configured to inhibit distal translation of the elongated shaft relative to the hub.