Surgical access device

• US 6,972,026 B1
• Filed: 03/20/2000
• Issued: 12/06/2005
• Est. Priority Date: 03/18/1999
• Status: Expired due to Term

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Gaya Limited
• Inventors: Muntner, Mike, Caldwell, Martin
• Primary Examiner(s): Nguyen, Anhtuan T.
• Assistant Examiner(s): Baxter, Jessica R.
• Application Number:
  US09/936,723
• Time in Patent Office: 2,087 Days
• Field of Search: 606/192, 606/193, 606/213, 606/191, 600/207, 604/167.02, 604/256, 604/167.03, 604/167.04, 604/167.01
• 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

Abstract

Surgical device (1) is for use in minimally invasive surgery using an inflated body cavity (2) accessible to a surgeon through an access port defined by a sleeve (4) passing through an incision in a patient'"'"'s abdominal wall (3). The device is held in position by a distal ring (5) and a proximal ring (6). An incision engaging bladder (10) provides a first seal for engaging and retracting the incision when inflated. A second seal is provided by a self engaging bladder (12) for sealing the sleeve (4).

Claims

1. A surgical device (1) for use in minimally invasive surgery of the type using an inflated body cavity (2) accessible to a surgeon through an access port, defined by the device (1), surrounding an incision in a patient'"'"'s body, the device having:

distal body cavity engagement means (5) for insertion into the incision to locate the device in position;

proximal fixing means (6) for attaching the device to a patient'"'"'s skin;

a sleeve (4) connected between the body cavity engagement means (5) and the fixing means defining an access port; and

characterized in that the device includes sealing means (10, 12), operating on the sleeve (4) to prevent substantial leakage of gas from the body cavity (2) on inflation when in an inoperative position and formed to mould to a substantial portion of a surgeon'"'"'s hand or surgical instrument on insertion in an operating position, the sealing means being provided by an inflatable first seal (10) for engaging and retracting the incision and a second inflatable seal (12) for sealing the lumen of the tube or sleeve bore,

in which the sleeve (4) is provided by a perforated wall defining a substantially cylindrical tube.

2. A surgical device (1) as claimed in claim 1, in which the body cavity engagement (5) means is provided by a distal ring (5) formed for insertion into the incision.

3. A surgical device as claimed in claim 1, in which the fixing means is provided by a proximal ring for engaging with a patient'"'"'s skin.

4. A surgical device (1) as claimed in claim 3, in which the proximal ring (6) has an associated connector ring for receiving additional seals or medical instruments.

5. A surgical device as claimed in claim 1, in which the first seal (10) is provided by an inflatable bladder (10) extending outwardly from the sleeve on inflation to form a seal with the incision.

6. A surgical device as claimed in claim 1, in which the second seal (12) is provided by an inflatable bladder (12) extending inwardly from the tube or sleeve (4) on inflation to prevent excessive loss of gas through the access port.

7. A surgical device as claimed in claim 6, in which the second seal (12) is operatively connected and mounted within the first seal (10).