Retractor

• US 8,012,088 B2
• Filed: 08/20/2007
• Issued: 09/06/2011
• Est. Priority Date: 10/14/1999
• Status: Expired due to Fees

• Current Assignee: Atropos Limited
• Original Assignee: Atropos Limited
• Inventors: Reid, Alan, Gill, Aoibheann, Young, Derek William, Bonadio, Frank, Butler, John
• Primary Examiner(s): RAMANA, ANURADHA
• Application Number:
  US11/841,777
• Publication Number:
  US 20080097163A1
• Time in Patent Office: 1,478 Days
• Field of Search: 600204-210, 128/849, 128/856
• US Class Current: 600/208
• 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 17/0206 with antagonistic arms as supports for retractor elements
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/0293 with ring member to support retractor elements
• CPC Class Codes: A61B 17/3421 Cannulas
• 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 2017/00265 Hand assisted surgery, i.e. minimally invasive surgery with at least part of an assisting hand inside the body
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/0225 flexible, e.g. fabrics, meshes, or membranes
• CPC Class Codes: A61B 2017/3419 Sealing means between cannula and body
• CPC Class Codes: A61B 2017/3429 having a unitary compressible body, e.g. made of silicone or foam
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61B 2017/3492 against the outside of the body
• CPC Class Codes: A61B 90/50 Supports for surgical instruments, e.g. articulated arms

Abstract

A retractor (101) for retracting the margins of a wound opening (103) comprises an inner anchoring O-ring (105) attached to a cylindrical sleeve (106) at a distal end and a reinforcing O-ring (109) attached to a proximal end of the sleeve (106). The sleeve (106) is led between an inner ring part (110) and a corresponding recess (116) in an outer ring part (111). The outer ring part (111) has anchor formations (120) over which the proximal end of the sleeve (106) is attached to anchor the sleeve (106). To retract the wound opening (103) the sleeve (106) is pulled while the guide rings (110, 111) are moved against the tissue surrounding the wound opening (103). This pulls the inner O-ring (105) against the inside of the tissue adjacent the wound opening (103), and retracts the wound opening (103). The sleeve (106) is manipulated locally for maximum retraction efficiency.

Claims

1. A medical device, comprising:

a retracting sleeve comprising a distal portion for insertion through an incision made in a patient, and a proximal portion for extending from the incision and outside of the patient;

a resilient distal ring member fixedly coupled to a distal end portion of the retracting sleeve;

a nonresilient proximal assembly coupled to the proximal portion of the retracting sleeve, the extent of the retracting sleeve between the distal ring and the proximal assembly being adjustable such that the proximal assembly is configured to contact different portions of the retracting sleeve, said contact between the retracting sleeve and the proximal assembly occurring within a radially inwardly protruding portion of the proximal assembly; and

a sealing device coupled to the proximal assembly.

2. The medical device of claim 1, wherein the proximal assembly includes an inner member and an outer member.

3. The medical device of claim 2, wherein the inner member is configured to provide a platform supporting the sealing device.

4. The medical device of claim 2, wherein the sealing device is removably coupled to the inner member.

5. The medical device of claim 2, wherein the sealing device is coupled to the inner member by a snap-type engagement.

6. The medical device of claim 1, wherein the sealing device includes a hand access device.

7. The medical device of claim 1, wherein the sealing device includes an instrument port.

8. The medical device of claim 1, wherein the sealing device includes a capping device.

9. The medical device of claim 1, wherein the sealing device includes a radially outer ring and a radially inner seal member.

10. A medical device, comprising:

a retracting sleeve comprising a distal portion for insertion through an incision made in a patient, and a proximal portion for extending from the incision and outside of the patient;

a resilient distal ring member fixedly coupled to a distal end portion of the retracting sleeve;

a proximal assembly movably coupled to the proximal portion of the retracting sleeve, wherein at least a portion of the proximal portion of the retracting sleeve extends within a radially inwardly protruding portion and an axially extending portion of the proximal assembly and the proximal assembly wherein the axially extending portion is located radially outwardly of the inwardly protruding portion with respect to a central longitudinal axis and axial cross section of the proximal assembly; and

a sealing device coupled to the proximal assembly.

11. The medical device of claim 10, wherein the proximal assembly is slidably coupled to the proximal portion of the retracting sleeve.

12. The medical device of claim 10, wherein the proximal assembly forms a platform configured to support the sealing device.

13. The medical device of claim 10, wherein the sealing device is a hand access device.

14. The medical device of claim 10, wherein the sealing device is an instrument port.

15. The medical device of claim 10, wherein the sealing device is a capping device.