Exchanger surgical access port assembly and methods of use

Patent metadata

Field	Value
Publication number	US-2016228148-A1
Application number	US-201415022910-A
Country	US
Kind code	A1
Filing date	Sep 19, 2014
Priority date	Sep 18, 2013
Publication date	Aug 11, 2016
Grant date	—

Abstract

A surgical access port assembly including a cannula having a diameter of less than about 3 mm and a tapered hub, capable of attachment to a laparoscopic surgical instrument, connected to the proximal end of the cannula.

First claim

What is claimed is:

1 . A surgical access port assembly capable of attachment to a lumen of a surgical instrument comprising:
(a) a hollow cannula defining an interior shaft extending longitudinally therethrough having a diameter of less than about 3 mm; and (b) a tapered hub on a proximal end of the hollow cannula, the tapered hub having at least one inner ring capable of connection to the lumen of the surgical instrument;
wherein the surgical access port assembly lacks a sealing valve and a sealing mechanism.

2 . A surgical access port assembly according to claim 1 wherein the hollow cannula has a distal end that is blunt.

3 . A surgical access port assembly according to claim 1 wherein the hollow cannula has a distal end that is sharp.

4 . A surgical access port assembly according to claim 1 wherein the at least one inner ring is comprised of three inner rings.

5 . A surgical access port assembly according to claim 1 wherein the at least one inner ring is an O-ring.

6 . A surgical access port assembly according to claim 1 further comprising a cap that seals the tapered hub.

7 . A surgical instrument, comprising:
(a) a lumen having a distal needle tip and a handle assembly on a proximal end; and (b) a surgical access port assembly having (i) a hollow cannula defining an interior shaft extending longitudinally therethrough having a diameter of less than about 3 mm, and (ii) a tapered hub on a proximal end of the hollow cannula, the tapered hub having at least one inner ring capable of connection to the lumen of the surgical instrument;
wherein the surgical access port assembly lacks a sealing valve and a sealing mechanism.

8 . A surgical instrument according to claim 7 , wherein the hollow cannula has a distal end that is blunt.

9 . A surgical instrument according to claim 7 , wherein the hollow cannula has a distal end that is sharp.

10 . A surgical instrument according to claim 7 , wherein the at least one inner ring is comprised of three inner rings.

11 . A surgical instrument according to claim 7 wherein the at least one inner ring is an O-ring.

12 . A surgical instrument according to claim 7 , further comprising a cap connected to the surgical access port assembly that seals the tapered hub.

13 . A surgical method comprising:
(a) inserting a needlescopic surgical instrument into a body wall of a person, the surgical instrument having (i) a lumen having a distal needle tip and a handle assembly on a proximal end of the lumen, and (ii) a surgical access port assembly having (A) a hollow cannula defining an interior shaft extending longitudinally therethrough having a diameter of less than about 3 mm, and (B) a tapered hub on a proximal end of the hollow cannula, the tapered hub having at least one inner ring capable of connection to the lumen of the surgical instrument, wherein the surgical access port assembly lacks a sealing valve and a sealing mechanism; (b) sliding the surgical access port assembly along the lumen in a downward direction towards the body wall of the patient; (c) inserting the cannula of the surgical access port assembly within the body wall while leaving the tapered hub outside the body wall; (d) withdrawing the surgical instrument from the surgical access port assembly and from the body of the person.

14 . The surgical method according to claim 13 , further comprising inserting another surgical instrument within the surgical access port assembly and through to a body cavity below the body wall of the person.

15 . The surgical method according to claim 13 , further comprising inserting an optional cap connected to the tapered hub of the surgical access port assembly cap into the tapered hub to seal the tapered hub.

16 . The surgical method according to claim 13 , further comprising withdrawing the surgical access port assembly from the body wall of the person without having to suture the body wall at the placement of the withdrawn surgical access port assembly.

Assignees

• Teleflex Medical Inc

Inventors

• Ravikumar Sundaram
• Osborne Guy
• Alward Harry Allan

Classifications

• A61B17/29 Primary

  Forceps for use in minimally invasive surgery · CPC title

• A61B17/3423

  Access ports, e.g. toroid shape introducers for instruments or hands (access sites for liquids A61M39/0247) · CPC title

• A61B2017/2901

  Details of shaft · CPC title

• A61B2017/00238

  Type of minimally invasive operation (A61B2017/00805 takes precedence) · CPC title

• A61B17/3421 Primary

  Cannulas · CPC title