Instrument access device
An instrument access device 1 comprises a proximal member 25 for location externally of an opening into a body cavity. A first connector 20 extends between the proximal member 25 and a first instrument receiver 2 . A second connector 21 extends between the proximal member and a second instrument receiver 3 . Instrument seals can be housed in relatively rigid housings for added strength.
1. A medical device, comprising:
a wound protector, including:
a proximal ring assembly including a proximal ring member having a central longitudinal axis,
a distal ring,
a wound-engaging sleeve extending between the proximal ring member and the distal ring, and
the proximal ring assembly further including a sealing member having a plurality of access portions that provide access through the sealing member into the wound-engaging sleeve, wherein the plurality of access portions include:
a central access portion having a central longitudinal axis coaxial with the central longitudinal axis of the proximal ring member, and
a peripheral access portion having a central longitudinal axis offset from the central longitudinal axis of the central access portion, wherein a width of the peripheral access portion is less than a width of the central access portion,
wherein the central access portion includes a first tube extending proximal to a proximalmost end of the proximal ring member, the width of the central access portion being a width of the first tube at a first location proximal to the proximalmost end of the proximal ring member, and the peripheral access portion includes a second tube extending proximal to the proximalmost end of proximal ring member, the width of the peripheral access portion being a width of the second tube at a second location proximal to the proximalmost end of the proximal ring member.
2. The medical device of claim 1 , wherein the sealing member further includes at least one seal for sealing at least one of the plurality of access portions.
3. The medical device of claim 1 , wherein the peripheral access portion is one of a plurality of peripheral access portions having central longitudinal axes offset from the central longitudinal axis of the central access portion.
4. The medical device of claim 1 , wherein the sealing member further comprises a reinforcing ring enveloped by a flexible material, where the reinforcing ring is more rigid than the flexible material.
5. The medical device of claim 1 , wherein the sealing member further comprises a reinforcing ring enveloped by a flexible material, where the reinforcing ring is more rigid than the flexible material.
6. A medical device, comprising:
a wound protector, including:
a proximal ring assembly including a proximal ring member,
a distal ring,
a wound-engaging sleeve extending between the proximal ring member and the distal ring, and
the proximal ring assembly further including a sealing member having a central longitudinal axis and a plurality of access portions that provide access through the sealing member into the wound-engaging sleeve, wherein the plurality of access portions include:
a central access portion having a central longitudinal axis coaxial with the central longitudinal axis of the sealing member, and
a peripheral access portion having a central longitudinal axis offset from the central longitudinal axis of the central access portion, wherein a width of the peripheral access portion is less than a width of the central access portion,
wherein the width of the central access portion is at a position where the central access portion has a circular cross-section, and the width of the peripheral access portion is at a position where the peripheral access portion has a circular cross-section.
7. The medical device of claim 6 , wherein the peripheral access portion is one of a plurality of peripheral access portions having central longitudinal axes offset from the central longitudinal axis of the central access portion.
8. The medical device of claim 6 , wherein the central longitudinal axis of the sealing member is coaxial with a central longitudinal axis of the proximal ring member.
9. The medical device of claim 6 , wherein the sealing member further includes at least one seal for sealing at least one of the plurality of access portions.
10. The medical device of claim 6 , wherein at least one of the central and peripheral access portions includes a tubular member extending proximal to the proximal ring member, and the width of the at least one of the central and peripheral access portions is a width of the tubular member proximal to a proximalmost edge of the proximal ring member.
11. The medical device of claim 6 , wherein the sealing member engages a proximalmost end of the proximal ring member.
12. A medical device, comprising:
a wound protector, including:
a proximal ring assembly including a proximal ring member having a central longitudinal axis,
a distal ring,
a wound-engaging sleeve extending between the proximal ring member and the distal ring, the wound-engaging sleeve, and
the proximal ring assembly further including a cover having a plurality of passageways that provide access through the cover into the wound-engaging sleeve, wherein the plurality of passageways include:
a first passageway having a central longitudinal axis coaxial with the central longitudinal axis of the proximal ring member, and
a second passageway having a central longitudinal axis offset from the central longitudinal axis of the central access portion, wherein a width of the second passageway is less than a width of the first passageway, and wherein the widths of the first and second passageways are measured at a position proximal to a proximalmost end of the wound protector,
wherein the width of the first passageway is a diameter of a circular portion of the first passageway, and the width of the second passageway is a diameter of a circular portion of the second passageway.
13. The medical device of claim 12 , wherein one of the first passageway and the second passageway includes a tubular member extending proximal to the proximal ring member.
14. The medical device of claim 13 , wherein the tubular member has a proximal end, and the cover further includes a valve at the proximal end for sealing the tubular member.
15. The medical device of claim 12 , wherein the cover further includes at least one valve for sealing at least one of the plurality of passageways.
16. The medical device of claim 12 , wherein the cover comprises a flexible material, and a reinforcing ring for stiffening the flexible material.
17. The medical device of claim 12 , wherein the cover extends proximal to the proximal ring member.