Laparoscopic sealed access device

• US 20010047188A1
• Filed: 03/13/2001
• Published: 11/29/2001
• Est. Priority Date: 12/01/1998
• Status: Active Grant

• Current Assignee: Atropos Limited
• Original Assignee: Atropos Limited
• Inventors: Bonadio, Frank, Reid, Alan, Young, Derek William, McManus, Ronan Bernard
• Granted Patent: US 6,623,426 B2
• Time in Patent Office: Days
• US Class Current: 606/213
• 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 17/3462 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 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/22051 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation A61B2017/22048, A61B2017/3486 take precedence
• CPC Class Codes: A61B 2017/3435 using everted sleeves
• CPC Class Codes: A61B 2017/3482 inside
• CPC Class Codes: A61M 2025/0062 having features to improve the sliding of one part within another by using lubricants or surfaces with low friction
• CPC Class Codes: A61M 2025/109 having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
• CPC Class Codes: A61M 25/0119 Eversible catheters
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Abstract

A hand access device for use as a seal for sealing a surgeon'"'"'s forearm on entry through a wound opening, for example, in an abdominal wall contains a substantially tubular sleeve of pliable gas tight material. The tube is turned axially back on itself to define an outer sleeve section and an inner sleeve section which define therebetween a sealed inflatable chamber. The inner sleeve section is engaged by the forearm which, on insertion, causes the sleeve to evert. The device has eversion limiting means in the form of inner and outer rings which are of elastomeric material.

Claims

1. A surgical access device for use in laproscopic surgery through an opening comprising:

a sleeve of pliable material, the sleeve having an outer sleeve section and an inner sleeve section;

a chamber for pressurised fluid defined between the inner and outer sleeve sections;

the inner sleeve section defining a lumen for receiving an object such as a surgeons arm or an instrument therein;

the sleeve being evertable on engagement of an object in the lumen and axial movement relative thereto so that the inner sleeve section is rolled over outwardly to become an outer sleeve section and the outer sleeve section is correspondingly rolled over inwardly to become an inner sleeve section; and

at least one eversion limiting means to limit the eversion of the sleeve into an opening.

2. A device as claimed in

claim 1

wherein the sleeve is axially turned back on itself to define the outer sleeve section and the inner sleeve section.

3. A device as claimed in

claim 1

or

2

wherein the nominal diameter of the outer sleeve section is the same as the diameter of the inner sleeve section.

4. A device as claimed in any preceding claim wherein the chamber is fluid impermeable.

5. A device as claimed in any preceding claim wherein the chamber has a port for inflation of the chamber.

6. A device as claimed in any preceding claim including a first eversion limiting means for location externally of the opening and a second eversion limiting means for location internally of the opening.

7. A device as claimed in any preceding claim wherein the or each eversion limiting mean is an O-ring.

8. A device as claimed in

claim 7

wherein the O-ring is of a resilient material.

9. A device as claimed in any preceding claim wherein the or each eversion limiting means is housed in the chamber.

10. A device as claimed in

claim 9

wherein the or each eversion limiting means is movable axially in the chamber.

11. A device as claimed in

claim 10

wherein there are two eversion limiting means and both are independently movable in the chamber.

12. A device as claimed in

claim 10

wherein there are two eversion limiting means and a linkage means is provided between them.

13. A device as claimed in

claim 12

wherein the linkage means is of pliable mateiral.

14. A device as claimed in

claim 12

or

13

wherein the linkage means comprises a linkage sleeve.

15. A device as claimed in any preceding claim including a sealing means to seal an object to be passed through the access opening.

16. A device as claimed in

claim 15

wherein the sealing means comprises a glove to receive a surgeons hand and/or forearm.

17. A device as claimed in claims 15 or 16 wherein the sealing means is attached to the sleeve.

18. An access device substantially as hereinbefore described with reference to the accompanying drawings.