Expanding surgical access port

• US 8,888,691 B2
• Filed: 01/05/2012
• Issued: 11/18/2014
• Est. Priority Date: 01/24/2011
• Status: Expired due to Fees

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Okoniewski, Gregory
• Primary Examiner(s): Robert, Eduardo C
• Assistant Examiner(s): CARTER, TARA ROSE E
• Application Number:
  US13/343,813
• Publication Number:
  US 20120190932A1
• Time in Patent Office: 1,048 Days
• Field of Search: 606190-194, 600201-210
• US Class Current: 600/207
• 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 2017/00539 hydraulically
• CPC Class Codes: A61B 2017/3429 having a unitary compressible body, e.g. made of silicone or foam
• CPC Class Codes: A61B 2017/3445 used as instrument channel for multiple instruments

Abstract

A surgical access port that includes a cylindrical member having a proximal end and a distal end and defining a longitudinal axis; at least two lumen extending through the cylindrical member along the longitudinal axis; at least one cavity defined in the cylindrical member and positioned radially within the at least two lumen; and a source of inflation fluid coupled to the at least one cavity, the source of inflation configured to permit selectable inflation of the at least one cavity, whereby inflation of the at least one cavity increases the radial distance between the at least two lumen.

Claims

1. A surgical access port, comprising:

a cylindrical member having a proximal end and a distal end and defining a longitudinal axis;

at least two lumens extending through the cylindrical member along the longitudinal axis;

at least one internal cavity defined in the cylindrical member, the entire lumen of each of the at least two lumens positioned radially outward of at least a portion of the at least one internal cavity with respect to the longitudinal axis, the at least one internal cavity enclosed by the proximal and distal ends of the cylindrical member; and

a source of inflation fluid coupled to the at least one internal cavity, the source of inflation fluid configured to permit selectable inflation of the at least one internal cavity, whereby inflation of the at least one internal cavity increases a radial distance between the at least two lumens.

2. The surgical access port of claim 1, wherein;

a first state is defined by the surgical access port having a first state diameter;

a second state is defined by the surgical access port having a second state diameter defined by the cylindrical member with the at least one internal cavity in an expanded state;

the first state diameter different from the second state diameter.

3. The surgical access port of claim 2, wherein the surgical access port is configured to prevent fluid leakage from an internal body cavity.

4. The surgical access port of claim 2, wherein when the surgical access port is in the first state, the at least one internal cavity has a first diameter and a portion of the cylindrical member has a second diameter substantially equal to the first diameter.

5. The surgical access port of claim 1, wherein the source of inflation fluid is coupled to the at least one internal cavity through an inflation port.

6. The surgical access port of claim 1, wherein the source of inflation fluid is coupled to the at least one internal cavity with a tube extending in a proximal direction of the surgical access port.

7. The surgical access port of claim 1, wherein the at least one internal cavity is coupled to a port for a release of an inflation fluid.

8. The surgical access port of claim 1, wherein the at least two lumens are asymmetrically spaced from the longitudinal axis.

9. The surgical access port of claim 1, wherein a surgical instrument is disposed through one of the at least two lumens.

10. The surgical access port of claim 1, wherein each lumen is capable of shifting in response to a deflection of a surgical instrument disposed therethrough.

11. The surgical access port of claim 1, wherein the at least one internal cavity is symmetric with respect to the longitudinal axis of the cylindrical member.