Adjustable valve having a radially compressible sealing body
First Claim
1. A surgical valve comprising:
- a sealing body having a smooth axial passage extending therethrough, the axial passage defining an axis, the sealing body having a position on the axis;
a toroidal body, axially aligned with the sealing body, and having a position on the axis, the sealing body and the toroidal body including mating surface means having a substantially circular cross section whereby changing the position of one of the sealing body and the toroidal body relative to the other creates a substantially uniform radial force to compress the axial passage of the sealing body; and
a position changing means for selectively changing the axial position of one of the sealing body and the toroidal body relative to the other, wherein the position changing means moves the sealing body relative to the toroidal body.
1 Assignment
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Accused Products
Abstract
An adjustable surgical valve has a sealing body with an axial passage extending through it, a toroidal body axially aligned with the sealing body, and a device that selectively changes the relative axial positions of the sealing body and the toroidal body. The sealing body and the toroidal body have mating surfaces which radially compresses the axial passage of the sealing body when the relative axial positions of the sealing body and the toroidal body are changed. This causes the axial passage to seal with an instrument inserted into it, or the seal with itself if no instrument is inserted. Alternatively, or additionally, the sealing body may include a braided sleeve coaxial with the axial passage and extending from the sealing body, and a device that selectively changes the relative axial positions of the sealing body and the extended part of the braided sleeve to elongate the braided sleeve. This causes the braided sleeve to contract radially, which compresses the axial passage of the sealing body radially. The sealing body is made of an elastomeric foam or an encapsulated gel.
186 Citations
19 Claims
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1. A surgical valve comprising:
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a sealing body having a smooth axial passage extending therethrough, the axial passage defining an axis, the sealing body having a position on the axis; a toroidal body, axially aligned with the sealing body, and having a position on the axis, the sealing body and the toroidal body including mating surface means having a substantially circular cross section whereby changing the position of one of the sealing body and the toroidal body relative to the other creates a substantially uniform radial force to compress the axial passage of the sealing body; and a position changing means for selectively changing the axial position of one of the sealing body and the toroidal body relative to the other, wherein the position changing means moves the sealing body relative to the toroidal body.
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2. A surgical valve comprising:
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a sealing body having an axial passage extending therethrough, the axial passage defining an axis, the sealing body having a position on the axis; a toroidal body, axially aligned with the sealing body, and having a position on the axis, the sealing body and the toroidal body having mating surface means whereby changing the position of one of the sealing body and the toroidal body relative to the other compresses the axial passage of the sealing body; and a position changing means for selectively changing the position of one of the sealing body and the toroidal body relative to the other; wherein the mating surface means of the sealing body is of a cross section that increases along the axis from a minimum to a maximum; and wherein the mating surface means of the toroidal body is of a cross section that increases along the axis from a minimum to a maximum in the same direction as the direction in which the cross section of the mating surface means of the sealing body increases. - View Dependent Claims (3)
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4. A surgical valve comprising:
a sealing body, the sealing body; having an axial passage extending therethrough, the axial passage defining an axis, the sealing body having a position on the axis, and including a braided sleeve coaxial with the axial passage, the braided sleeve extending from the sealing body to provide a remote part, the remote part having a position on the axis; and
a position changing means for selectively changing the positionof one of the sealing body and the remote part of the braided sleeve relative to the other to elongate the braided sleeve axially, thereby radially compressing the axial passage of the sealing body. - View Dependent Claims (5, 6, 7, 8)
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9. A surgical valve comprising:
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a substantially cylindrical valve body having a bore; a sealing body slidably mounted coaxially in the bore of the valve body, and having an axial position therein, the sealing body having an axial passage extending therethrough, the axial passage defining an axis, the valve body and the sealing body having mating surface means whereby changing the axial position of the sealing body compresses the axial passage of the sealing body; and a means attached to the sealing body for selectively changing the axial position of the sealing body, at least in part by applying a tensile load on the sealing body. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A surgical valve comprising:
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a substantially cylindrical valve body having a bore; a sealing body slidably mounted coaxially in the bore of the valve body, and having an axial position therein, the sealing body having an axial passage extending therethrough, the axial passage defining an axis, the valve body and the sealing body having mating surface means whereby changing the axial position of the sealing body compresses the axial passage of the sealing body; and a means attached to the sealing body for selectively changing the axial position of the sealing body; wherein the bore of the valve body provides the mating surface means of the valve body; wherein the bore of the valve body is of a circular cross section that is substantially constant along the axis; and wherein the mating surface means of the sealing body is of a substantially circular cross section that increases along the axis in the direction away from the valve body.
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16. A surgical valve comprising:
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a substantially cylindrical valve body having a bore; a sealing body slidably mounted coaxially in the bore of the valve body, and having an axial position therein, the sealing body having an axial passage extending therethrough, the axial passage defining an axis, the valve body and the sealing body having mating surface means whereby changing the axial position of the sealing body compresses the axial passage of the sealing body; and a means attached to the sealing body for selectively changing the axial position of the sealing body wherein the sealing body includes a braided sleeve attached to the means for selectively changing the axial position of the sealing body. - View Dependent Claims (17)
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18. A surgical valve comprising:
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a substantially cylindrical valve body having a bore; a sealing body slidably mounted coaxially in the bore of the valve body, and having an axial position therein, the sealing body having an axial passage extending therethrough, the axial passage defining an axis, the valve body and the sealing body having mating surface means whereby changing the axial position of the sealing body compresses the axial passage of the sealing body; and a means attached to the sealing body for selectively changing the axial position of the sealing body; wherein the sealing body comprises an encapsulated gel.
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19. A surgical valve comprising:
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a sealing body having a smooth axial passage extending therethrough, the axial passage defining an axis, the sealing body having a position on the axis, wherein the sealing body includes a braided sleeve which provides tensile strength; a toroidal body, axially aligned with the sealing body, and having a position on the axis, the sealing body and the toroidal body including mating surface means having a substantially circular cross section whereby changing the position of one of the sealing body and the toroidal body relative to the other creates a substantially uniform radial force to compress the axial passage of the sealing body; and a position changing means for selectively changing the axial position of one of the sealing body and the toroidal body relative to the other.
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Specification