Surgical hand access apparatus
View Patent ↗A hand access device includes a housing defining a longitudinal axis and having a passageway therethrough dimensioned to permit passage of a surgeon's arm and a fabric seal mounted within the opening and being dimensioned to form a substantial sealing relation with the surgeon's arm. The fabric seal is elongated extending along the longitudinal axis and may define a general hour glass configuration. A pair of flexible bands may be mounted about the fabric seal. The flexible bands are adapted to engage an outer surface of the seal to bias the fabric seal to a closed position thereof.
1. A hand access device, which comprises:
a housing defining a longitudinal axis and having a passageway therethrough dimensioned to permit passage of a surgeon's arm; and
a fabric seal mounted within the passageway, the fabric seal including a fabric material and an elastomeric material different from the fabric material, and having inner seal portions adapted to permit passage of the surgeon's arm through the fabric seal and in substantial sealing relation therewith, the fabric seal being elongated extending along the longitudinal axis to define entry and exit seal ends, and an intermediate seal portion between the entry and exit ends; and
at least one flexible band mounted about the fabric seal and in contacting engagement with at least the intermediate seal portion of the fabric seal and adapted to bias the inner seal portions of the fabric seal toward a closed position thereof.
2. The hand access device of claim 1 wherein the fabric seal is twisted about the longitudinal axis so as to form a constriction.
3. The hand access device of claim 1 wherein the fabric seal is arranged to define a constriction.
4. The hand access device according to claim 1 , wherein the fabric seal generally defines an hourglass configuration.
5. The hand access device according to claim 1 including pair of flexible bands connected to each other at respective end portions thereof, the flexible bands arranged in opposed relation in contacting relation with the intermediate portion of the fabric seal whereby the flexible bands are adapted to bow outwardly upon passage of the surgeon's arm through the fabric seal, and return in the absence of the surgeon's arm to bias the inner seal portions of the flexible seal toward the closed position.
6. The hand access device according to claim 5 wherein the flexible bands include slots therein to facilitate bowing outwardly of the flexible bands during passage of the surgeon's arms.
7. The hand access device according to claim 5 wherein the flexible bands are connected to each other at respective end portions about respective pivot pins.
8. The hand access device according to claim 1 wherein the fabric seal comprises a lubricious coating.
9. The hand access device according to claim 1 wherein the elastomeric material is impregnated within the fabric material of the fabric seal.
10. The hand access device according to claim 1 wherein the fabric material is coated with the elastomeric material of the fabric seal.
11. The hand access device according to claim 1 including a base retractor mounted to the housing, the base retractor at least partially positionable within an opening in tissue and adapted to at least partially retract the tissue surrounding the opening, the base retractor defining a longitudinal axis and having a longitudinal channel extending along the longitudinal axis.
12. The hand access device according to claim 11 wherein the housing is mounted for rotational movement relative to the base retractor.
13. The hand access device according to claim 1 wherein the fabric material is selected from the group consisting of a woven fabric, a knitted fabric, a braided fabric and a felted fabric.
14. The hand access apparatus according to claim 1 wherein, the inner seal portions of the fabric seal are movable from a first substantially closed position to a second displaced position to thereby define an internal opening to permit passage of the surgeon's arm.
15. A hand access device, which comprises:
a housing defining a longitudinal axis and having a passageway therethrough dimensioned to permit passage of a surgeon's arm;
an elongated seal mounted within the passageway, the elongated seal extending along the longitudinal axis to define entry and exit seal ends, and an intermediate seal portion between the entry and exit seal ends, at least the intermediate seal portion adapted to establish a general sealed relation with an object introduced through the elongated seal; and
a pair of opposed flexible bands mounted about the elongated seal and engageable with the intermediate seal portion, the flexible bands adapted to bias the intermediate seal portion to substantially close a passage of the elongated seal.
16. The hand access device according to claim 15 wherein the elongated seal comprises a fabric material and an elastomeric material different from the fabric material.