Wound retractor device

• US 10,278,688 B2
• Filed: 05/31/2017
• Issued: 05/07/2019
• Est. Priority Date: 12/01/1998
• Status: Expired due to Term

• Current Assignee: Atropos Limited
• Original Assignee: Atropos Limited
• Inventors: Bonadio, Frank, Butler, John, Vaugh, Trevor, MacNally, Shane J., Reid, Alan
• Primary Examiner(s): Ramana, Anu
• Application Number:
  US15/610,012
• Publication Number:
  US 20170325801A1
• Time in Patent Office: 706 Days
• CPC Class Codes: A61B 1/32 Devices for opening or enlarging the visual field, e.g. of a tube of the body dilators A61M29/00
• CPC Class Codes: A61B 17/0293 with ring member to support retractor elements
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3431 being collapsible, e.g. made of thin flexible material A61B17/3423 takes precedence
• CPC Class Codes: A61B 17/3439 with means for changing the inner diameter of the cannula, e.g. expandable A61B17/3423, A61B17/3431 take precedence; catheters A61M25/0662
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/0212 Cushions or pads, without holding arms, as tissue retainers, e.g. for retracting viscera
• CPC Class Codes: A61B 2017/0225 flexible, e.g. fabrics, meshes, or membranes
• CPC Class Codes: A61B 2017/3443 with means for adjusting the length of a cannula
• CPC Class Codes: A61B 2017/3482 inside
• CPC Class Codes: A61B 2017/3484 Anchoring means, e.g. spreading-out umbrella-like structure
• CPC Class Codes: A61B 2017/3492 against the outside of the body

Abstract

A wound protector and retractor device 1 comprises a sleeve 2, a distal member provided by a distal ring 3 of resilient material and a proximal member provided by a proximal ring 4. The sleeve 2 is led around the ring 3 and is free to move axially relative to the distal ring 3 somewhat in the manner of a pulley. The proximal ring 4 is fixed to the sleeve 2, in this case at the proximal inner end thereof. The sleeve 2 terminates in a handle or gripping portion which is reinforced by a gripping ring 15. The sleeve extends from the proximal ring 4 and the distal ring 3 is contained between inner and outer layers 2a, 2b of the sleeve 2. The resilient distal ring 3 is scrunched up and inserted through the incision 6. The sleeve 2 is then pulled upwardly. On pulling of the sleeve 2 upwardly the outer layer 2b is pulled up while the inner layer 2a is drawn around the proximal ring 3. This results in shortening the axial extent between the proximal ring 4 and the distal ring 3, tensioning the sleeve and applying a retraction force to the margins of the incision 6. As the incision is being retracted the margins are also protected by the sleeve. On retraction, an access port is provided, for example for a surgeon to insert his hand and/or an instrument to perform a procedure. The device may be used as a retractor in open surgery or as a base for a valve/seal to allow it to be used in hand assisted laparoscopic surgery or for instrument access or hand access generally.

Claims

1. A surgical device, comprising:

a wound retractor, comprising;

a distal ring,

a proximal ring, and

a wound retracting sleeve extending at least between the distal ring and the proximal ring, wherein the wound retractor is for retracting a wound opening via shortening of an axial extent of the wound retracting sleeve that extends between the distal ring and the proximal ring, and wherein the proximal ring and the wound retracting sleeve are separate elements that are engaged such that positioning of a proximal portion of the wound retracting sleeve relative to the proximal ring is adjustable to shorten the axial extent of the wound retracting sleeve; and

a sealing assembly coupled to the wound retractor, wherein the sealing assembly comprises;

an access sleeve having a proximal end, the access sleeve extending proximally from the proximal ring to the proximal end, and

a valve member at the proximal end of the access sleeve, the valve member being movable between a first position and a second position, wherein at least a proximal end of the valve member is;

a first distance from a proximal end of the proximal ring in the first position, and

a second distance from the proximal end of the proximal ring in the second position, the first distance being greater than the second distance, and

wherein material forming the access sleeve inherently biases the valve member toward moving from the first position to the second position.

2. The surgical device of claim 1, wherein a central longitudinal axis of the valve member is aligned with a central longitudinal axis of the wound retractor when the valve member is in the first position.

3. The surgical device of claim 1, wherein a central longitudinal axis of the valve member is tilted relative to a central longitudinal axis of the wound retractor when the valve member is in the second position, and an angle between the central longitudinal axes increases as the valve member moves from the first position to the second position.

4. The surgical device of claim 1, wherein a width of the access sleeve tapers as the access sleeve extends proximally from the proximal ring to the proximal end.

5. The surgical device of claim 1, wherein at least a portion of the valve member extends proximally beyond a proximalmost portion of the access sleeve.

6. The surgical device of claim 1, wherein spring material forming the access sleeve provides the inherent biasing to cause the access sleeve to spring back toward the first position from the second position.

7. The surgical device of claim 1, wherein the wound retracting sleeve is slidably coupled to the proximal ring.

8. The surgical device of claim 1, wherein a distalmost end of the valve member is distal to a proximalmost end of the access sleeve.

9. A surgical device, comprising:

a wound retractor, comprising;

a distal ring,

a proximal ring, and

a wound retracting sleeve extending at least between the distal ring and the proximal ring, wherein the wound retractor is for retracting a wound opening via shortening of an axial extent of the wound retracting sleeve that extends between the distal ring and the proximal ring, and wherein the proximal ring and the wound retracting sleeve are separate elements that are engaged such that positioning of a proximal portion of the wound retracting sleeve relative to the proximal ring is adjustable to shorten the axial extent of the wound retracting sleeve; and

a sealing assembly coupled to the wound retractor, wherein the sealing assembly comprises;

an access sleeve having a proximal end, the access sleeve extending proximally from the proximal ring to the proximal end, and

a valve member at the proximal end of the access sleeve, the valve member being movable between a first position and a second position, wherein a central longitudinal axis of the valve member is more tilted relative to a central longitudinal axis of the wound retractor in the second position than in the first position, and wherein material forming the access sleeve is inherently biased to return the valve member to the first position upon removal of a force acting to deform the access sleeve and place the valve member in the second position.

10. The surgical device of claim 9, wherein spring material forming the access sleeve provides the inherent biasing to cause the access sleeve to spring back to the first position from the second position upon removal of the force.

11. The surgical device of claim 9, wherein the central longitudinal axes of the valve member and the wound retractor are aligned when the valve member is in the first position.

12. The surgical device of claim 9, wherein a lateral portion of the access sleeve buckles as the valve member moves from the first position to the second position.

13. The surgical device of claim 12, wherein the lateral portion becomes straight as the valve member moves from the second position to the first position.

14. The surgical device of claim 9, wherein a first portion of the access sleeve has a first width, and a second portion of the access sleeve has a second width, and wherein the first width is wider than the second width.

15. A surgical device, comprising:

a wound retractor, comprising;

a distal ring,

a proximal ring, and

a wound retracting sleeve extending at least between the distal ring and the proximal ring, wherein the wound retractor is for retracting a wound opening via shortening of an axial extent of the wound retracting sleeve that extends between the distal ring and the proximal ring, and wherein the proximal ring and the wound retracting sleeve are separate elements that are engaged such that positioning of a proximal portion of the wound retracting sleeve relative to the proximal ring is adjustable to shorten the axial extent of the wound retracting sleeve; and

a sealing assembly coupled to the wound retractor, wherein;

the sealing assembly comprises an access sleeve having a proximal end, the access sleeve extending proximally from the proximal ring to the proximal end, such that the proximal end is separated from the proximal ring by a distance, and the access sleeve including a wall extending between the proximal ring and the proximal end, and

material forming the wall is resilient, such that the access sleeve is biased by the resilience of the material to move from a contracted configuration to an extended configuration upon removal of a force deforming the access sleeve into the contracted configuration.

16. The surgical device of claim 15, wherein the wall includes spring material that provides the resiliency for causing the access sleeve to spring back into the extended configuration from the contracted configuration.

17. The surgical device of claim 15, wherein the access sleeve tapers.

18. The surgical device of claim 15, wherein the access sleeve is tilted, relative to a central longitudinal axis of the wound retractor, in the contracted configuration.

19. The surgical device of claim 15, wherein central longitudinal axes of the access sleeve and the wound retractor are aligned when the access sleeve is in the extended configuration.

20. The surgical device of claim 15, wherein in the extended configuration, a lateral portion of the wall is straight as the lateral portion extends from the proximal ring to the proximal end.