Sealed surgical access device

• US 20060149306A1
• Filed: 01/12/2006
• Published: 07/06/2006
• Est. Priority Date: 10/20/2001
• Status: Abandoned Application

• Current Assignee: Applied Medical Resources Corporation (Applied Medical Corporation)
• Original Assignee: Applied Medical Resources Corporation (Applied Medical Corporation)
• Inventors: Taylor, Scott, Hart, Charles C.
• Application Number:
  US11/330,661
• Publication Number:
  US 20060149306A1
• Time in Patent Office: Days
• US Class Current: 606/191
• 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 17/3462 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 2017/00265 Hand assisted surgery, i.e. minimally invasive surgery with at least part of an assisting hand inside the body
• CPC Class Codes: A61B 2017/3405 using mechanical guide means
• 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 2017/3486 Balloon
• 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 surgical access device is adapted to facilitate access through an incision in a body wall having an inner surface and an outer surface, and into a body cavity of a patient. The device includes first and second retention members adapted to be disposed in proximity to the outer surface and the inner surface of the body wall, respectively. A membrane extending between the two retention members forms a throat which is adapted to extend through the incision and form a first funnel extending from the first retention member into the throat, and a second funnel extending from the second retention member into the throat. The throat of the membrane has characteristics for forming an instrument seal in the presence of an instrument and a zero seal in the absence of an instrument. The first retention member may include a ring with either a fixed or variable diameter. The ring can be formed in first and second sections, each having two ends. Couplings can be disposed between the ends to accommodate variations in the size of the first retention member. The first retention member can also be formed as an inflatable toroid, a self-expanding foam, or a circumferential spring. A plurality of inflatable chambers can also provide the surgical access device with a working channel adapted for disposition across the body wall. A first retention member with a plurality of retention stations functions with a plurality of tethers connected to the membrane to change the shape of the membrane and the working channel. A stabilizing platform can be used to support the access device generally independent of any movement of the body wall.

Claims

1-23. -23. (canceled)

24. A combination for facilitating a surgical procedure on a patient supported on a surgical table, comprising:

an access device including a membrane defining a working channel adapted for disposition across a body wall of the patient to provide instrument access into a body cavity of the patient;

a stabilizing platform supporting portions of the access device generally independent of any movement of the body wall; and

the stabilizing platform having a base in a fixed relationship with the surgical table, and a cross member in a fixed relationship with the portions of the access device.

25. The combination recited in claim 24, further comprising:

at least one arm extending between the base and the cross member.

26. The combination recited in claim 25, wherein at least one arm has a pivotal relationship with the base.

27. The combination recited in claim 26, wherein the cross member has an axis and is rotatable on its axis relative to the arm.

28. The combination recited in claim 25 wherein at least one arm is releasably attached to the base.