Trocar obturator with transverse needle ports

Patent metadata

Field	Value
Publication number	US-10869690-B2
Application number	US-201715637696-A
Country	US
Kind code	B2
Filing date	Jun 29, 2017
Priority date	Jun 29, 2017
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

Abstract

An obturator configured for use with a trocar includes a head and a distally extending shaft configured to be received within a working channel of a trocar. The obturator further includes a distal tip configured to puncture tissue, first and second needle entrance ports each arranged on at least one of the head or the shaft, and first and second needle exit ports arranged on the shaft. The first and second needle entrance ports communicate with the first and second needle exit ports, respectively, to define respective first and second suture paths extending obliquely to the central axis. Each of the first and second suture paths includes at least one sealing element. In some examples, the obturator further includes at least one deployable member coupled to the shaft and configured to project radially outwardly in a deployed position.

First claim

We claim:

1. An obturator configured for use with a trocar, the obturator comprising:
(a) a head, wherein the head includes a latch;
(b) a shaft extending distally from the head along a central axis, wherein the shaft is configured to be received within a working channel of a trocar, wherein the latch of the head is movable between a first position in which the latch is configured to secure the head to the shaft, and a second position in which the latch is configured to permit the head to be separated from the shaft;
(c) a distal tip configured to puncture tissue;
(d) first and second needle entrance ports each arranged on at least one of the head or the shaft;
(e) first and second needle exit ports arranged on the shaft; and
(f) at least one anchor member arranged on a distal portion of the shaft, wherein the at least one anchor member is selectively actuatable relative to the shaft between a retracted position and a deployed position, wherein in the deployed position the at least one anchor member projects radially outwardly from the shaft,
wherein the first needle entrance port communicates with the first needle exit port to define a first suture path extending obliquely relative to the central axis,
wherein the second needle entrance port communicates with the second needle exit port to define a second suture path extending obliquely relative to the central axis.

2. The obturator of claim 1 , wherein the first and second suture paths extend through a device interior of the obturator.

3. The obturator of claim 2 , wherein the head and the shaft collectively define the device interior, wherein each of the needle entrance ports and the needle exit ports opens to the device interior.

4. The obturator of claim 1 , wherein the first and second needle entrance ports are arranged on respective first and second side portions of the head.

5. The obturator of claim 1 , wherein the first and second needle entrance ports comprise first and second elongate slots.

6. The obturator of claim 1 , wherein the first and second needle exit ports comprise first and second elongate slots.

7. The obturator of claim 1 , further comprising third and fourth needle exit ports arranged on the shaft distally of the first and second needle exit ports.

8. The obturator of claim 1 , further comprising at least one needle guide member arranged on the shaft distally of the first and second needle exit ports, wherein the at least one needle guide member is configured to guide a distal end of a suture passer needle directed along at least one of the first or second suture paths.

9. The obturator of claim 8 , wherein the at least one needle guide member comprises a pair of needle guide members, wherein each needle guide member is movable relative to the shaft between a retracted position and a deployed position in which the at least one needle guide member projects radially outwardly from the shaft.

10. The obturator of claim 1 , further comprising a plunger slidably arranged within a central lumen of the shaft, wherein the plunger is operatively coupled with the at least one anchor member, wherein the plunger is slidable axially within the shaft between a first axial position for placing the at least one anchor member in the retracted position and a second axial position for placing the at least one anchor member in the deployed position.

11. The obturator of claim 10 , wherein a distal end of the plunger is coupled to the distal tip of the obturator, wherein the distal tip is movable with the plunger relative to the shaft between the first and second axial positions.

12. The obturator of claim 10 , wherein the plunger is resiliently biased toward one of the first axial position or the second axial position, wherein the head is selectively decouplable from the shaft, wherein the head is configured to overcome a bias force associated with the plunger to thereby maintain the plunger in one of the first axial position or the second axial position when the head is coupled with the shaft.

13. The obturator of claim 1 , wherein the needle entrance ports are arranged on the shaft.

14. The obturator of claim 1 , wherein the shaft includes a proximal shaft portion and a distal shaft portion, wherein the distal shaft portion is formed with a larger diameter than the proximal shaft portion.

15. The obturator of claim 1 , wherein the distal tip is movable proximally and distally relative to the shaft between the retracted position and the deployed position.

16. The obturator of claim 15 , wherein the distal tip is translatable relative to the shaft along the central axis thereof between the retracted position and the deployed position.

17. The obturator of claim 1 , wherein the latch in the first position is configured to engage a proximal feature of the shaft to secure the head to the shaft, wherein the latch in the second position is configured to disengage the proximal feature to permit the head to be separated from the shaft.

18. A trocar assembly, comprising:
(a) a trocar including:
(i) a housing assembly,
(ii) a cannula extending distally from the housing assembly, and
(iii) a working channel extending axially through the housing assembly and the cannula; and

(b) an obturator configured for use with the trocar, the obturator comprising:
(i) a shaft extending along a central axis,
(ii) a head releasably coupled to a proximal end of the shaft,
(iii) a distal tip configured to puncture tissue,
(iv) a first pair of needle ports configured to direct a suture passer needle through the obturator along a first suture path oriented obliquely relative to the central axis, and
(v) a second pair of needle ports configured to direct a suture passer needle through the obturator along a second suture path oriented obliquely relative to the central axis,

wherein the proximal end of the shaft is configured to pass distally through the working channel when the head is removed from the shaft.

19. A wound closure device, comprising:
(a) a head;
(b) a shaft extending distally from the head along a central axis, wherein the head is selectively decouplable from the shaft;
(c) a plunger slidably arranged within a central lumen of the shaft, wherein the plunger is resiliently biased toward a proximal position;
(d) a deployable member coupled to the shaft and the plunger, wherein the deployable member is actuatable by the plunger between a retracted position in which the shaft and the deployable member are configured to be inserted into a working channel of a trocar, and a deployed position in which the deployable member projects radially outwardly from the shaft and is configured to abut an adjacent structure to limit axial movement of the wound closure device relative to the adjacent structure, wherein the head is configured to overcome the resilient bias of the plunger to thereby maintain the plunger in a distal position and the deployable member in the retracted position when the head is coupled with the shaft and the plunger, wherein the plunger is configured to assume the proximal position and the deployable member is configured to assume the deployed position when the head is decoupled from the shaft and the plunger;
(e) a first pair of needle ports configured to guide a suture passer needle along a first suture path extending through the wound closure device obliquely relative to the central axis; and
(f) a second pair of needle ports configured to guide a suture passer needle along a second suture path extending through the wound closure device obliquely relative to th

Assignees

• Ethicon Llc

Inventors

• Parihar Shailendra K
• Shelton Iv Frederick E
• Harris Jason L
• Schings Brian D
• Murray Michael A
• Tellmann Melinda J
• Raghavan Devanathan
• Bakos Gregory J

Classifications

• A61B17/0057 Primary

  Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect (sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009) · CPC title

• A61B2017/00663

  the implement being a suture · CPC title

• A61B2017/00637

  for sealing trocar wounds through abdominal wall · CPC title

• A61B2017/3484

  Anchoring means, e.g. spreading-out umbrella-like structure · CPC title

• A61B17/0482

  Needle or suture guides (guides for drills, pins or wire A61B17/17; guides for puncturing needles A61B17/3403) · CPC title