Universal port/seal device for ocular surgery
First Claim
1. An instrument port device for use in surgery comprising:
- a housing having a distal end, a proximal end, and an internal longitudinally-extending passageway between said distal and proximal ends through which a surgical instrument may be inserted and withdrawn;
at least two jaws mounted to said distal end of said housing, said jaws having interior surfaces and exterior surfaces and being mounted for reciprocal movement between a first open position in which said interior surfaces are spaced from one another and a second closed position in which at least a portion of said interior surfaces are engaged with one another; and
sealing means for providing a fluid seal between said housing and a surgical instrument that is inserted into said passageway.
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Accused Products
Abstract
A universal port/seal device is provided for ocular surgery, notably for cataract surgery. The device is inserted into an ocular incision and is adapted to serve as (1) a port for inserting, manipulating and withdrawing a surgical instrument, e.g., the tip of a phacoemulsification handpiece, so as to protect the surrounding tissue from mechanical and thermal injury, and (2) a seal to prevent leakage of fluid from the eye. The device comprises (1) a housing having an internal passageway that permits it to function as a cannula or port for a surgical instrument, (2) at least two jaws that are movable toward and away from one another and are shaped so as to (a) serve as a seal to prevent leakage from a surgical eye incision and (b) accommodate a surgical instrument or tool that is inserted between them via the housing'"'"'s internal passageway, and (3) sealing member for preventing leakage of fluid via the housing'"'"'s internal passageway while allowing relative movement of an inserted surgical device.
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Citations
42 Claims
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1. An instrument port device for use in surgery comprising:
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a housing having a distal end, a proximal end, and an internal longitudinally-extending passageway between said distal and proximal ends through which a surgical instrument may be inserted and withdrawn; at least two jaws mounted to said distal end of said housing, said jaws having interior surfaces and exterior surfaces and being mounted for reciprocal movement between a first open position in which said interior surfaces are spaced from one another and a second closed position in which at least a portion of said interior surfaces are engaged with one another; and sealing means for providing a fluid seal between said housing and a surgical instrument that is inserted into said passageway. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. In combination with a phaco tip comprising a hollow needle having a tip that is surrounded at least in part by an infusion sleeve, a port device that comprises the following:
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a housing having a distal end, a proximal end, and a central internal longitudinally-extending passageway between said distal and proximal ends through which said needle and sleeve may be inserted and withdrawn; at least two jaws mounted to said distal end of said housing, said jaws having interior surfaces and exterior surfaces and being mounted for movement between a first open position in which said interior surfaces are spaced from one another and a second closed position in which at least a portion of said interior surfaces are engaged with one another; and said exterior surface being characterized by means whereby an exterior force may be applied to said jaws to force them to said second closed position. - View Dependent Claims (20, 21, 22, 23)
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24. The combination of a port/seal device for use in surgery and an installation tool for installing said device;
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said port/seal device comprising (1) a housing having a distal end, a proximal end, and an internal passageway extending longitudinally between said distal and proximal ends through which a surgical instrument may be inserted and withdrawn, (2) at least two jaws mounted to and projecting from said distal end of said housing, said jaws having interior surfaces and exterior surfaces and being mounted for movement between a first open position in which said interior surfaces are spaced from one another and a second closed position in which at least a portion of said interior surfaces are engaged with one another, said jaws also having projections whereby an exterior force may be applied to said jaws to force them to said second closed position, said exterior surfaces of said jaws also being shaped so as to make a close fit with an eye incision, and (3) spring means biasing said jaws to said first open position; and said installation tool comprising a tubular member having a distal end for receiving said port/seal device, said distal end being sized so as to engage said projections and thereby hold said jaws in said second closed position; and
a second member telescopingly mounted in said tubular member for movement between a first retracted position and a second extended position, said first retracted position being such as to permit said port/seal device to be received by said tubular member with its jaws held thereby in said second closed position, and said second extended position being such that in moving thereto said second member pushes said port/seal device outwardly of said tubular member and thereby frees said jaws for movement by said spring means to said second open position. - View Dependent Claims (25)
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26. An instrument port device for use in surgery comprising:
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a housing having a distal end, a proximal end, and an internal longitudinally-extending passageway between said distal and proximal ends through which a surgical instrument may be inserted and withdrawn; at least two jaws mounted to said distal end of said housing, said jaws having interior surfaces and exterior surfaces; means pivotally mounting said jaws to said housing for reciprocal movement between a first open position in which said interior surfaces are spaced from one another and a second closed position in which at least a portion of said interior surfaces are engaged with one another; and sealing means carried by said housing for providing a fluid seal between said housing and a surgical instrument that is inserted into said passageway. - View Dependent Claims (27, 28, 29, 30, 32, 42)
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31. An instrument port device for use in surgery comprising:
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a housing having a distal end, a proximal end, and an internal longitudinally-extending passageway between said distal and proximal ends through which a surgical instrument may be inserted and withdrawn; at least two jaws mounted to said distal end of said housing, said jaws having interior surfaces and exterior surfaces and being mounted for reciprocal movement between a first open position in which said interior surfaces are spaced from one another and a second closed position in which at least a portion of said interior surfaces are engaged with one another, said exterior surfaces being characterized by means whereby an exterior force may be applied to said jaws to force them to said second closed position; and sealing means for providing a fluid seal between said housing and a surgical instrument that is inserted into said passageway.
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33. An instrument port device for use in surgery comprising:
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a housing having a distal end, a proximal end, and an internal longitudinally-extending passageway between said distal and proximal ends through which a surgical instrument may be inserted and withdrawn; at least two jaws mounted to said distal end of said housing, said jaws having interior surfaces and exterior surfaces and being mounted for reciprocal movement between a first open position in which said interior surfaces are spaced from one another and a second closed position in which at least a portion of said interior surfaces are engaged with one another; said exterior surfaces being characterized by means whereby an exterior force may be applied to said jaws to force them to said second closed position; and means for biasing said jaws into said first open position. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
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41. An instrument port device for use in surgery comprising:
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a housing having a distal end, a proximal end, and an internal longitudinally-extending passageway between said distal and proximal ends through which a surgical instrument may be inserted and withdrawn; at least two jaws having interior surfaces and exterior surfaces; means mounting said jaws to said distal end of said housing so that said jaws are movable bidirectionally in their entirety between a first open position in which said interior surfaces are spaced from one another and a second closed position in which at least a portion of said interior surfaces are engaged with one another; and said interior surfaces being concave and said exterior surfaces being characterized by means whereby an exterior force may be applied to said jaws to force them to said second closed position.
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Specification