Access device with insert
View Patent ↗Various devices and methods are provided with respect to inserting multiple surgical instruments through a single surgical access device. A medical device including a flexible tissue retractor and a releasable insert having multiple instrument openings is disclosed. The insert can be in the form of an insert assembly including multiple components. A method of using the insert is also described.
1. A medical device comprising:
a tissue retractor comprising a flexible member having an outer surface for engaging a body incision and an inner surface defining a passageway; and
an insert releasably supported within the passageway defined by the flexible member, wherein the insert comprises at least one instrument opening, the insert comprising an insert assembly having an outer portion and an inner portion wherein the inner portion is rotatable with respect to the outer portion.
2. The medical device of claim 1 wherein the insert comprises an outer surface sized and shaped to deform the flexible member to provide at least a portion of the passageway with a predetermined size and shape.
3. The medical device of claim 1 wherein the insert comprises a generally cylindrical outer surface sized to radially stretch the flexible member to have a generally circular cross-section of predetermined diameter upon insertion of the insert within the passageway.
4. The medical device of claim 1 wherein the flexible member has a proximal end and a second distal end, and wherein the insert is releasably supported within the passageway at a position spaced distally from the proximal end of the flexible member.
5. The medical device of claim 1 wherein the insert comprises a plurality of instrument openings.
6. The medical device of claim 1 wherein a portion of the insert is rotatable with respect to the flexible tissue retractor.
7. The medical device of claim 1 wherein the outer portion of the insert assembly engages the inner surface of the flexible member of the tissue retractor.
8. The medical device of claim 1 wherein the outer portion of the insert assembly frictionally engages an inner surface of the flexible member.
9. The medical device of claim 1 wherein the outer portion comprises a generally cylindrical sleeve.
10. The medical device of claim 1 wherein the outer portion comprises a ledge for restricting axial movement of the inner portion into a body cavity.
11. The medical device of claim 1 wherein the insert assembly comprises a rotation bearing positioned to support the inner portion axially while permitting rotation of the inner portion relative to the outer portion.
12. A medical device comprising:
a flexible tissue retractor having an outer surface for engaging a body incision and an inner surface for defining a body access passageway; and
an insert adapted to be inserted within the flexible tissue retractor, the insert comprising:
an outer sleeve sized and shaped to engage and deform a portion of the inner surface of the flexible tissue retractor;
a housing disposed at least partially within the outer sleeve, the housing having an upper surface comprising a plurality of instrument openings, the housing being rotatable with respect to the outer sleeve; and
at least one seal associated with each instrument opening.
13. The medical device of claim 12 wherein the insert further comprises an instrument channel member comprising a plurality of tubular instrument channels, each tubular instrument channel substantially aligned with an instrument opening in the housing.
14. The medical device of claim 13 wherein the housing and instrument channel member are rotatably supported with respect to the outer sleeve.
15. The medical device of claim 13 wherein the instrument channel member comprises a unitary, flexible structure, and wherein each tubular instrument channel is independently deformable with respect to the housing and the other tubular instrument channels.
16. The medical device of claim 13 further comprising an inversion restriction member having a plurality of openings there through, and wherein a tubular instrument channel extends axially through each opening of the inversion restriction member.
17. A medical device comprising:
a flexible tissue retractor having a first end, a second end, and a flexible member extending intermediate the first and second ends; and
an insert comprising (i) an outer portion and (ii) an inner portion having a plurality of instrument openings, wherein the inner portion is rotatable with respect to the outer portion, the insert adapted to be releasably inserted within the flexible member intermediate the first and second ends of the retractor.
18. The medical device of claim 17 , wherein the flexible tissue retractor comprises a first deformable ring associated with the first end of the tissue retractor and a second deformable ring associated with the second end of the tissue retractor.
19. The medical device of claim 18 wherein the insert is sized and shaped to deform a portion of the flexible member intermediate the first and second deformable rings.
20. The medical device of claim 18 wherein the insert is sized to pass through the first deformable ring without deforming the first deformable ring.