Access assembly having undercut structure

• US 9,307,974 B2
• Filed: 11/05/2013
• Issued: 04/12/2016
• Est. Priority Date: 12/20/2010
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Kleyman, Gennady
• Primary Examiner(s): Philogene, Pedro
• Application Number:
  US14/071,779
• Publication Number:
  US 20140051935A1
• Time in Patent Office: 889 Days
• Field of Search: 600/204, 600/206, 600/184, 600/207, 600/208, 600/215, 604/24, 604/164.01, 604/167.05, 604/174, 606/185, 606/213
• 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 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3431 being collapsible, e.g. made of thin flexible material A61B17/3423 takes precedence
• 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 2017/3447 Linked multiple cannulas
• CPC Class Codes: A61B 2017/3466 for simultaneous sealing of multiple instruments

Abstract

An assembly for accessing a body cavity is provided. The access assembly includes a flexible outer sleeve configured to be received through an opening in tissue. The outer sleeve defines a passageway therethrough and a notch formed about an inner surface thereof. The access assembly further includes a support plate configured for selective reception through the passageway of the outer sleeve and within the notch formed in the inner surface. The support plate defines at least a first opening configured to receive a surgical instrument therethrough.

Claims

1. An access assembly comprising:

a compressible outer sleeve defining a longitudinal opening therethrough, the compressible outer sleeve having a first end positionable beneath an inner surface of tissue and a second end configured to be maintained external to an outer surface of tissue when the compressible outer sleeve is placed within an opening in tissue; and

a support plate including a first cannula extending proximally therefrom, the first cannula defining a first longitudinal passageway configured to receive a surgical instrument therethrough, the support plate configured for reception through the longitudinal opening of the compressible outer sleeve, the support plate defining at least a first opening in fluid communication with the first longitudinal passageway, wherein the support plate causes the compressible outer sleeve to transition from a compressed condition to an uncompressed condition when positioned within the longitudinal opening.

2. The access assembly of claim 1, wherein the compressible outer sleeve is composed of at least one of silicone, thermoplastic elastomers, rubber, foam, or gel.

3. The access assembly of claim 1, wherein the support plate further includes a second cannula extending proximally therefrom, the second cannula defining a second longitudinal passageway in fluid communication with a second opening defined by the support plate.

4. The access assembly of claim 1, wherein the first cannula is threadingly engaged with the support plate.

5. The access assembly of claim 1, wherein the compressible outer sleeve further includes a notch formed on an inner surface of the compressible outer sleeve for securing the support plate to the compressible outer sleeve.

6. The access assembly of claim 1, wherein the first cannula is selectively secured within the first opening in the support plate.

7. The access assembly of claim 1, wherein the first cannula includes a valve assembly.

8. The access assembly of claim 7, wherein the valve assembly includes a valve member.

9. The access assembly of claim 1, wherein the first cannula is integrally formed with the support plate.

10. The access assembly of claim 1, wherein the compressible outer sleeve further includes a flange disposed on the first end of the compressible outer sleeve, the flange having a greater diameter than a diameter of a central portion of the compressible outer sleeve.

11. The access assembly of claim 1, wherein the support plate is rotatable relative to the compressible outer sleeve when the support plate is coupled to the compressible outer sleeve.

12. A method of accessing a body cavity, the method comprising the steps of:

inserting a portion of a compressed outer sleeve through an opening in tissue, the compressed outer sleeve having a first end and a second end;

maintaining the second end of the compressed outer sleeve external to the opening in tissue;

inserting a support plate into a longitudinal opening defined by the outer sleeve to decompress the outer sleeve and transition the outer sleeve from a compressed condition to an uncompressed condition; and

manipulating one or more instruments through the outer sleeve.

13. The method of claim 12, wherein inserting a portion of the compressed outer sleeve through an opening in tissue includes positioning a distal end of the outer sleeve distal to an inner surface of tissue.

14. The method of claim 12, wherein the support plate defines an opening and the method further includes coupling a cannula to the opening of the support plate.