HAND ACCESS LAPAROSCOPIC DEVICE

• US 20110112374A1
• Filed: 01/14/2011
• Published: 05/12/2011
• Est. Priority Date: 10/14/2005
• Status: Active Grant

• Current Assignee: Applied Medical Resources Corporation (Applied Medical Corporation)
• Original Assignee: Applied Medical Resources Corporation (Applied Medical Corporation)
• Inventors: Albrecht, Jeremy J., Brustad, John R., Hilal, Nabil, Hart, Charles C., Johnson, Gary M.
• Granted Patent: US 8,647,265 B2
• Time in Patent Office: Days
• US Class Current: 600/208
• CPC Class Codes: A61B 17/02 for holding wounds open; Tractors specula A61B1/32 ; drainage appliances for wounds A61M27/00
• 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 17/0293 with ring member to support retractor elements
• 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 17/3439 with means for changing the inner diameter of the cannula, e.g. expandable A61B17/3423, A61B17/3431 take precedence; catheters A61M25/0662
• 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 17/3496 Protecting sleeves or inner probes; Retractable tips for protecting body piercing guide needles A61M25/0612
• CPC Class Codes: A61B 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/0225 flexible, e.g. fabrics, meshes, or membranes
• CPC Class Codes: A61B 2017/0287 with elastic retracting members connectable to a frame, e.g. hooked elastic wires
• CPC Class Codes: A61B 2017/3419 Sealing means between cannula and body
• CPC Class Codes: A61B 2017/347 Locking means, e.g. for locking instrument in cannula
• CPC Class Codes: A61B 2050/005 with a lid or cover
• CPC Class Codes: A61B 2050/0051 closable by rotation
• CPC Class Codes: A61B 90/40 Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment

Abstract

The invention relates to a hand access laparoscopy device having a gelcap, a retainer, a sleeve and a retention ring. The gelcap includes gel that is bonded to a cap. The cap includes an inner cylindrical wall to which the gel in bonded, thereby providing a sealing area between the device and the wound in a body wall. By securing the gel to the inner cylindrical wall, the thickness of the gel and corresponding cap is minimized along with the overall footprint of the device. With the gel thickness reduced and able to be substantially flush, the “doming” phenomenon produced by insufflation of a patient'"'"'s abdomen is reduced.

Claims

1. A surgical access device comprising:

a retractor comprising a proximal end;

a distal end;

a retention ring at the distal end of the retainer, wherein the retention ring is deformably insertable through an opening into a body cavity; and

an elongate sleeve extending proximally from the retention ring;

a gelcap couplable with the proximal end of the retractor, the gelcap comprising an annular cap ring defining a central opening; and

a gel pad sealing the central opening and secured to the cap ring, wherein a periphery of the annular cap ring comprises a gap defining a first end of the cap ring and a second end of the cap ring;

a latch pivotably coupled to the annular cap ring towards the first end of the cap ring;

a latch receiver disposed on the cap ring towards the second end of the cap ring dimensioned to releasably receive the latch; and

an access channel extending from a proximal end of the access device to a distal end of the access device, and through the gel pad and the cap ring of the gel pad, through the elongate sleeve, and through the retention ring,

wherein

in a first state in which the latch is not engaged with the latch receiver, the cap ring has a first diameter,

in a second state in which the latch is engaged with the latch receiver, the cap ring has a second diameter smaller than the first diameter, and

in the second state, the gel cap is coupled to the retractor.

2. The surgical access device of claim 1, wherein the latch comprises a shaft comprising a first end pivotably coupled to the first end of the cap ring, and a second end comprising an enlarged head.

3. The surgical access device of claim 2, wherein portions of the enlarged head are compressible.

4. The surgical access device of claim 1, wherein the latch comprises at least one projection that engages a corresponding notch in the latch receiver.

5. The surgical access device of claim 1, wherein the latch receiver comprises parallel walls defining a channel.

6. The surgical access device of claim 5, wherein the parallel walls flex away from each other when engaging the latch.

7. The surgical access device of claim 5, wherein the parallel walls comprises at least one projection that engages a corresponding notch in the latch.

8. The surgical access device of claim 1, wherein the cap ring comprises an inner, cylindrical wall.

9. The surgical access device of claim 1, wherein the gel pad is adhesively secured to the cap ring.

10. The surgical access device of claim 1, wherein the gel pad is mechanically secured to the cap ring.

11. The surgical access device of claim 10, wherein the cap ring comprises a wall comprising a plurality of apertures through which portions of the gel pad extend, mechanically securing the gel pad to the cap ring.

12. The surgical access device of claim 1, wherein the gel pad is solvent welded to the cap ring.

13. The surgical access device of claim 1, wherein the gel pad comprises an elastomeric gel.

14. The surgical access device of claim 13, wherein the elastomeric gel comprises a diblock or triblock copolymer, and mineral oil.

15. The surgical access device of claim 1, wherein the gel pad comprises an access portion comprising a plurality of dead-end slits through which the access channel extends.

16. The surgical access device of claim 1, wherein the cap ring comprises at least one of polymer, polyethylene, low density polyethylene, high density polyethylene, ultra high molecular weight polyethylene, and polycarbonate.

17. The surgical access device of claim 1, further comprising an annular retainer couplable to the proximal end of the elongate sleeve, positionable in the cap ring in the first state, and couplable to the cap ring in the second state.