Surgical port assembly

• US 9,492,195 B2
• Filed: 01/19/2015
• Issued: 11/15/2016
• 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): SUMMITT, LYNNSY M
• Application Number:
  US14/599,611
• Publication Number:
  US 20150148613A1
• Time in Patent Office: 666 Days
• US Class Current: 1/1
• 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; and

a wire embedded in the funnel shape of the proximal portion, at least portions of the wire positioned in the vicinity of the distal portion,

the wire extending in a multiple looped configuration of non-intersecting curved portions positioned in the vicinity of the proximal portion.

2. The port of claim 1, wherein the wire is embedded within the proximal portion or embedded within the proximal portion and the distal portion.

3. The port of claim 1, wherein the proximal portion defines an inner wall surface and an outer wall surface, and

wherein at least a portion of the wire is covered by the first material on the inner wall surface or on the outer wall surface or on both the inner wall surface and on the outer wall surface.

4. The port of claim 1, wherein the wire is automatically expandable.

5. The port of claim 1, wherein the wire is expandable by engagement by an expandable member.

6. The port of claim 1, wherein the wire is flexible and symmetrically expandable.

7. The port of claim 1, wherein the wire is flexible and asymmetrically expandable.

8. The port of claim 1, further comprising 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.

9. The port of claim 8, further comprising 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.

10. The port of claim 1, wherein the cylindrically shaped distal portion defines an outer surface that includes a tissue engaging portion having an irregular shape, and

wherein the tissue engaging portion is configured to engage tissue adjacent to the opening in the patient via the irregular shape.

11. The port of claim 1, wherein the proximal portion is formed from a material which has a greater flexibility than a material from which the distal portion is formed.

12. The port of claim 11, wherein the proximal portion defines a perimeter at a proximal end of the proximal portion, the perimeter defining a transverse dimension when the proximal portion is in a non-deformed condition, and

wherein the proximal portion is deformable such that the perimeter is expandable to a dimension that is greater than the transverse dimension when the proximal portion is in the non-deformed condition.

13. The port of claim 1, wherein the funnel shape is configured such that first and second cannulas can extend distally from the distal portion and such that a first instrument can be inserted through the first cannula and a second instrument can be inserted concurrently through the second cannula.

14. A surgical port comprising:

a body having a wall, the body including;

a proximal portion defining a funnel shape flaring outwardly towards a proximal end of the body and flaring inwardly towards a 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, first and second cannulas extending from the body and being movable with respect to the body via movement of an instrument inserted therethrough, wherein at least portions of the body wall are deformable by pressure exerted by the instrument thereon; and

a support embedded in the funnel shape of the proximal portion wherein the support comprises a wire that extends in a multiple looped configuration of non-intersecting curved portions positioned in the vicinity of the proximal portion and opposing non-intersecting curved portions positioned in the vicinity of the distal portion, the support engageable with the body to increase the rigidity of at least portions of the body.

15. The port of claim 14, wherein the wire is asymmetrically expandable.

16. The port of claim 14, wherein the proximal portion is formed from a first material, the body further comprising 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.

17. The port of claim 14, wherein the cylindrically shaped distal portion defines an outer surface that includes a tissue engaging portion having an irregular shape, and

wherein the tissue engaging portion is configured to engage tissue adjacent to an opening in a patient via the irregular shape.

18. The port of claim 14, wherein the proximal portion is deformable into a collapsed configuration by an external force such that at least a portion of the proximal portion is insertable into a body opening.