Apparatus for use in surgery and a valve
First Claim
1. A surgical device providing sealed access through an incision in a patient, the device comprising:
- a distal ring insertable through the incision to engage internal body tissue;
a tubular diaphragm having a distal end, a proximal end, and an incision engaging portion, the distal end of the tubular diaphragm being coupled to the distal ring, the incision engaging portion configured to engage the incision, and the proximal end of the tubular diaphragm located proximal the distal ring and outside the incision; and
an entry seal assembly located proximal the tubular diaphragm, the entry seal assembly configured to maintain a controlled pressurized environment inside the surgical device such that non-adhesive sealing of the surgical device to the patient is provided by engagement of the incision engaging portion of the diaphragm with the incision and engagement of the distal ring to the internal body tissue, said sealing increasing with an increase in pressure within the controlled pressurized environment.
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Accused Products
Abstract
Apparatus for use in surgery comprises a sleeve (1) having an entry opening (4) at an outer end and an exit opening (5) at an inner end to access a patient'"'"'s body. Exit sealing means (10) are provided for sealing the exit opening (5) to a body. Entry sealing means (20) are provided for sealing the outer entry against an arm passing therethrough to create a controlled environment within the sleeve. A valve (101) comprises an outer ring (105,106) and a sealing sleeve (107) of flexible material mounted to the ring (105,106) and extending into the opening defined by the ring to terminate in a substantially centrally disposed inlet opening (108).
116 Citations
29 Claims
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1. A surgical device providing sealed access through an incision in a patient, the device comprising:
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a distal ring insertable through the incision to engage internal body tissue; a tubular diaphragm having a distal end, a proximal end, and an incision engaging portion, the distal end of the tubular diaphragm being coupled to the distal ring, the incision engaging portion configured to engage the incision, and the proximal end of the tubular diaphragm located proximal the distal ring and outside the incision; and an entry seal assembly located proximal the tubular diaphragm, the entry seal assembly configured to maintain a controlled pressurized environment inside the surgical device such that non-adhesive sealing of the surgical device to the patient is provided by engagement of the incision engaging portion of the diaphragm with the incision and engagement of the distal ring to the internal body tissue, said sealing increasing with an increase in pressure within the controlled pressurized environment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A surgical device providing sealed access through an incision in a patient, the device comprising:
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a distal ring insertable through the incision to engage internal body tissue; a tubular diaphragm having a distal end, a proximal end, an internal portion, and an incision engaging portion opposite the internal portion, the distal end of the tubular diaphragm being coupled to the distal ring and the proximal end of the tubular diaphragm located proximal the distal ring and outside the incision; and an entry seal assembly located proximal the tubular diaphragm and configured to maintain a controlled pressurized environment inside the surgical device such that non-adhesive sealing of the surgical device to the patient is provided, the engagement of the distal ring to the internal body tissue providing a seal such that the incision engaging portion of the tubular diaphragm is not subject to the controlled pressurized environment, while the internal portion of the tubular diaphragm is subject to the controlled pressurized environment. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification