Surgical access device

• US 7,214,185 B1
• Filed: 03/20/2000
• Issued: 05/08/2007
• Est. Priority Date: 03/18/1999
• Status: Expired due to Term

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Maclachlan & Donaldson
• Inventors: Cummins, Christy, Bermingham, Donal, Rosney, Damien
• Primary Examiner(s): Hayes; Michael J.
• Assistant Examiner(s): NGUYEN, VI X
• Application Number:
  US09/936,840
• Time in Patent Office: 2,605 Days
• Field of Search: 606/108, 606/201, 606/202, 606/213, 606/191, 606/192, 604/167, 604/174, 604/256, 604/523, 604/237, 600/207, 600/208, 600/235
• US Class Current: 600/208
• 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 2017/3419 Sealing means between cannula and body

Abstract

A surgical device for use in minimally invasive surgery in which body cavity is accessed by a surgeon though an access port defined by the device, the device including a body cavity engagement feature for insertion into the incision to locate the device in position, fixing feature with a ring that attaches the device to the patient'"'"'s skin, and a toroid cell having a bladder filled with a liquid or a gel to prevent substantial leakage of gas from the body cavity and formed to mould about a substantial portion of a surgeon'"'"'s hand or surgical instrument on insertion.

Claims

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

body cavity engagement means for insertion into the incision to locate the device in position;

fixing means for attaching the device to a patient'"'"'s skin, the fixing means including a ring;

wherein the body cavity engagement means is adjustable by the positioning of the ring so that the positioning of the ring retracts the body cavity engagement means to define an access port and creates a sealing means between the incision and the body cavity engagement means; and

additional sealing means incorporating a toroid cell comprising a sealed, non-inflating bladder entirely filled with one of a liquid and a gel to prevent substantial leakage of gas from the body cavity on inflation of the body cavity when the sealing means is in an inoperative position and formed to mould about a substantial portion of a surgeon'"'"'s hand or surgical instrument on insertion in an operating position.