Surgical port assembly

• US 8,961,407 B2
• Filed: 08/31/2009
• Issued: 02/24/2015
• Est. Priority Date: 07/21/2004
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Piskun, Gregory, Shikhman, Oleg, Battles, Christopher, Gutelius, Patrick N., DeBisschop, Mark J., MacDonald, Jeffrey H., Rende, Frank, Abrams, Michael, Konik, Anatoly, Rottenberg, Dan
• Primary Examiner(s): Philogene, Pedro
• Assistant Examiner(s): SUMMITT, LYNNSY M
• Application Number:
  US12/550,595
• Publication Number:
  US 20100113886A1
• Time in Patent Office: 2,003 Days
• Field of Search: 600201-219, 600231-235, 600/245, 600/246
• US Class Current: 600/204
• 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 17/3421 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 17/3462 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 2017/3441 with distal sealing means
• CPC Class Codes: A61B 2017/3447 Linked multiple cannulas
• CPC Class Codes: A61B 2017/3466 for simultaneous sealing of multiple instruments
• CPC Class Codes: A61B 2017/349 Trocar with thread on outside

Abstract

A surgical port comprising a body and first and second cannula extending from the body and movable with respect to the body via an instrument inserted through the respective cannula. The cannulas can extend distally from the body and can include one or more seals. A port assembly and first and second instruments manipulatable in a crossed configuration are also disclosed.

Claims

1. A surgical port for positioning within an opening in a patient formed via a surgical incision comprising:

a body defining a proximal end and a distal end and composed at least in part of a first material, the body including;

a proximal portion defining a funnel shape flaring outwardly towards the proximal end of the body and flaring inwardly towards the distal end of the body transitioning directly into

a distal portion defining a cylindrical shape, a maximum diameter of the proximal end being greater than a maximum diameter of the distal end, the cylindrically shaped distal portion defining an outer surface that includes a tissue engaging portion having an irregular shape; and

a membrane composed at least in part of a second different material and supported by the distal portion of the body and disposed at the distal end thereof, at least a portion of the membrane being flexible; and

first and second cannulas extending distally from the membrane and being movable with respect to the body via movement of an instrument inserted therethrough,

the surgical port configured such that the first and second cannulas extend distally from the membrane a distance sufficient such that, when operably disposed within tissue, the membrane and the first and second cannulas are disposed beneath the surgical incision in the opening in the patient,

wherein the proximal portion of the body that defines the funnel shape includes a distal end having a diameter that is equal to or greater than a diameter defined by both the first cannula and the second cannula in combination,

wherein the funnel shape is configured such that a first instrument can be inserted through the first cannula and a second instrument can be inserted concurrently through the second cannula, and wherein the tissue engaging portion, via the irregular shape, is configured to engage tissue adjacent to the opening in the patient.

2. The port of claim 1, wherein the membrane is composed of stretchable material, the membrane enabling pivoting and twisting of the cannnulas to alter the position of instruments inserted therethrough.

3. The port of claim 2, wherein the body has a transverse dimension at a proximal portion greater than a transverse dimension at a distal portion.

4. The port of claim 3, wherein the body is composed of a rigid material.

5. The port of claim 1, wherein the cannulas have a proximal opening adjacent the membrane and a distal opening extending distally of the body.

6. The port of claim 1, further comprising a stiffening member positioned within the first cannula.

7. The port of claim 1, wherein the first cannula defines a proximal end and a distal end, and wherein the first cannula includes a seal at the distal end of the first cannula.

8. The port of claim 7, wherein the first cannula includes a valve positioned therein.

9. The port of claim 1, wherein the membrane is attached to an outer surface of the body.

10. The port of claim 9, wherein the membrane is attached by a swaged ring.

11. The port of claim 1, further comprising first and second cannula extensions, the first cannula extension connected to the first cannula and the second cannula extension connected to the second cannula.

12. The port of claim 11, wherein the cannula extensions are connected to the respective cannula by a swaged ring.

13. The port of claim 11, wherein the cannula member has a first seal and the cannula extension has a second seal.