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 adapted for disposition outside a body wall, the access device facilitating insertion of an instrument therethrough and maintenance of a sealing relationship with the instrument, comprising:
a cap ring defining a central opening;
a gel pad coupled to the cap ring and sealing the central opening in the cap ring and forming an instrument seal in the presence of an instrument inserted therethrough and a zero seal in the absence of an instrument inserted therethrough, the gel pad including at least two regions of differing resiliency including a first region having a first resiliency and a second region having less resiliency than the first region;
a first fabric coupled to the cap ring; and
a second fabric coupled to the cap ring a distance from the first fabric, the space between the first fabric and the second fabric defining a cavity,
wherein the gel pad is positioned within the cavity between the first and second fabric.
2. The surgical access device of claim 1 wherein the gel pad including gas-filled pockets dispersed throughout the second region.
3. The surgical access device of claim 1 wherein the first region of the gel pad is surrounded by the second region.
4. The surgical access device of claim 1 wherein the gel pad has a third and fourth region with differing resiliency and the resiliency of the third and fourth regions decrease in relation to an increase in distance from the first region.
5. The surgical access device of claim 1 further comprising a fabric integrated with the gel pad.
6. The surgical access device of claim 1 further comprising a resilient fabric integrated on a surface of the gel pad and coupled to the cap ring.
7. The surgical access device of claim 1 wherein the first fabric is integrated onto a first surface of the gel pad.
8. The surgical access device of claim 7 further comprising the second fabric is integrated onto a second surface of the gel pad opposite of the first surface of the gel pad.
9. The surgical access device of claim 1 wherein the gel pad including multi-cusped lobes, adjacent lobes being configured to seal upon one another.
10. The surgical access device of claim 1 further comprising a retractor comprising a proximal end; a distal end; a retention ring at the distal end of the retractor, wherein the retention ring is deformably insertable through an opening into a body cavity; and an elongate sleeve extending proximally from the retention ring, the cap ring being removably coupled to the proximal end of the retractor.
11. A surgical access device adapted for disposition outside a body wall, the access device facilitating insertion of an instrument therethrough and maintenance of a sealing relationship with the instrument, comprising:
a cap ring defining a central opening;
a gel pad coupled to the cap ring and sealing the central opening in the cap ring and forming an instrument seal in the presence of an instrument inserted therethrough and a zero seal in the absence of an instrument inserted therethrough, the gel pad including at least two regions of differing resiliency including a first region having a first resiliency and a second region having less resiliency than the first region;
wherein the cap ring includes at least one gap along the cap ring, the at least one gap creating at least one first end and at least one second end of the cap ring in which the gel pad couples to the at least one first end of the cap ring to the at least one second end of the cap ring and the cap ring further comprises a buckle fitting arranged to couple the at least one first end of the cap ring to the at least one second end of the cap ring closing the at least one gap.
12. The surgical access device of claim 11 wherein the buckle fitting includes a barbed portion extending from the at least one first end of the cap and a receiver portion extending from the at least one second end of the cap, the barbed portion and the receiver portion of the buckle fitting arranged to engage each other in a mating relationship.
13. The surgical access device of claim 12 wherein:
the barbed portion of the buckle fitting includes a plurality of arms with at least two of the plurality of arms being resilient and having projections extending therefrom; and
the receiver portion of the buckle fitting having corresponding sidewalls defining a channel for engaging the projections of the barbed portion, thereby causing the at least two of the plurality of arms having the projections to flex toward each other as the at least two of the plurality of arms slide into the channel defined by the receiver portion and to flex away from each other as the projections clear the ends of the sidewalls and into a fully engaged state.
14. A surgical access device adapted for disposition outside a body wall, the access device facilitating insertion of an instrument therethrough and maintenance of a sealing relationship with the instrument, comprising:
a cap ring defining a central opening;
a gel pad coupled to the cap ring and sealing the central opening in the cap ring and forming an instrument seal in the presence of an instrument inserted therethrough and a zero seal in the absence of an instrument inserted therethrough, the gel pad including at least two regions of differing resiliency including a first region having a first resiliency and a second region having less resiliency than the first region;
wherein the cap ring has a first state defining a first annular perimeter and a second state defining a second annular perimeter smaller than the first annular perimeter of the cap ring, the gel pad being relaxed in the first state and compressed by the cap ring in the second state.
15. A surgical access device adapted for disposition outside a body wall, the access device facilitating insertion of an instrument therethrough and maintenance of a sealing relationship with the instrument, comprising:
a cap ring defining a central opening;
a gel pad coupled to the cap ring and sealing the central opening in the cap ring and forming an instrument seal in the presence of an instrument inserted therethrough and a zero seal in the absence of an instrument inserted therethrough, the gel pad including at least two regions of differing resiliency including a first region having a first resiliency and a second region having less resiliency than the first region;
wherein the cap ring includes at least one gap along the cap ring, the at least one gap creating at least one first end and at least one second end of the cap ring in which the gel pad couples to the at least one first end of the cap ring to the at least one second end of the cap ring and the at least one gap in the first state of the cap ring defining a first distance and the at least one first end and the at least one second end of the cap ring being distal from each other and the at least one gap in the second state of the cap ring defining a second distance being smaller than the first distance and the at least one first end and the at least one second end of the cap ring being proximate to each other.