Hand access laparoscopic device
View Patent ↗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.
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.