US5338313A
Expired / Lapsed
US
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Adjustable valve having a radially compressible sealing body
Assignee: Medtronic Vascular Inc
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Filing: 1992-12-17
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Granted: 1994-08-16
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Expires: 2012-12-17
Abstract
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 compress 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 to 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.
Inventors
- 👤 Kenneth H. Mollenauer
- 👤 George D. Hermann
- 👤 Thomas A. Howell
- 👤 Michelle Y. Monfort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:54
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61M39/0613; A61M2039/062; A61M2039/0673
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
123 words
A surgical valve, comprising: a sealing body having a smooth axial passage extending therethrough, the axial passage defining an axis, the sealing body having an axial position on the axis; a toroidal body, axially aligned with the sealing body, and having an axial position on the axis, the sealing body and the toroidal body including mating surface means having a substantially circular cross section whereby changing the axial position of one of the sealing body and the toroidal body relative to the other creates a circumferentially 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.
Claim 2
Dependent Claim
123 words
A surgical valve, comprising: a sealing body having a smooth axial passage extending therethrough, the axial passage defining an axis, the sealing body having an axial position on the axis; a toroidal body, axially aligned with the sealing body, and having an axial position on the axis, the sealing body and the toroidal body including mating surface means having a substantially circular cross section whereby changing the axial position of one of the sealing body and the toroidal body relative to the other creates a circumferentially 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.
Claim 3
Dependent Claim
21 words
The surgical valve of claim 1, wherein the position changing means moves the toroidal body axially relative to the sealing body.
Claim 4
Dependent Claim
64 words
The surgical valve of claim 1, 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 the mating surface means of the toroidal body is of a substantially constant cross section that is less than the maximum cross section of the mating surface means of the sealing body.
Claim 5
Dependent Claim
38 words
The surgical valve of claim 3, wherein: the mating surface means of the sealing body is of a substantially circular cross section; and the mating surface means of the toroidal body is of a substantially circular cross section.
Claim 6
Dependent Claim
78 words
The surgical valve of claim 1, 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 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.
Claim 7
Dependent Claim
64 words
The surgical valve of claim 1, 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; and the mating surface means of the sealing body is of a substantially constant cross section that is greater than the minimum cross section of the mating surface means of the toroidal body.
Claim 8
Dependent Claim
43 words
The surgical valve of claim 1, wherein the sealing body includes a braided sleeve disposed coaxially with the axial passage; and the position changing means is additionally for axially elongating the braided sleeve, the axial elongation causing the braided sleeve to contract radially.
Claim 9
Dependent Claim
16 words
The surgical valve of claim 1, wherein the position changing means includes a pawl and ratchet.
Claim 10
Dependent Claim
27 words
The surgical valve of claim 1, wherein the position changing means includes a means for translating rotational motion about the axis into longitudinal motion along the axis.
Claim 11
Dependent Claim
14 words
The surgical valve of claim 1, wherein the sealing body comprises an elastomeric foam.
Claim 12
Dependent Claim
14 words
The surgical valve of claim 1, wherein the sealing body comprises an encapsulated gel.
Claim 13
Dependent Claim
102 words
A surgical valve comprising: a substantially cylindrical valve body having a bore; a sealing body fixed coaxially in the bore of the valve body, the sealing body having an axial passage extending therethrough; a toroidal body, axially aligned with the sealing body, slidably mounted in the bore of the valve body, and having an axial position therein, the sealing body and the toroidal body having mating surface means whereby changing the axial position of the toroidal body compresses the axial passage of the sealing body; and means attached to the toroidal body for selectively changing the axial position of the toroidal body.
Claim 14
Dependent Claim
102 words
A surgical valve comprising: a substantially cylindrical valve body having a bore; a sealing body fixed coaxially in the bore of the valve body, the sealing body having an axial passage extending therethrough; a toroidal body, axially aligned with the sealing body, slidably mounted in the bore of the valve body, and having an axial position therein, the sealing body and the toroidal body having mating surface means whereby changing the axial position of the toroidal body compresses the axial passage of the sealing body; and means attached to the toroidal body for selectively changing the axial position of the toroidal body.
Claim 15
Dependent Claim
78 words
The surgical valve of claim 12, wherein: the mating surface means of the toroidal body is of a circular cross section; the cross section of the mating surface means of the toroidal body decreases along the axis in the direction away from the sealing body; the mating surface means of the sealing body is of a circular cross section; and the cross section of the mating surface means of the sealing body is substantially constant along the axis.
Claim 16
Dependent Claim
46 words
The surgical valve of claim 12, wherein: the sealing body includes a braided sleeve coaxial with the axial passage; the braided sleeve extends from the sealing body to provide a remote part; and the remote part of the braided sleeve is attached to the valve body.
Claim 17
Dependent Claim
22 words
The surgical valve of claim 14, wherein the braided sleeve provides a sealed passage between the valve body and the sealing body.
Claim 18
Dependent Claim
33 words
The surgical valve of claim 14, wherein the means for selectively changing the axial position of the toroidal body is additionally for axially elongating the braided sleeve to contract the braided sleeve radially.
Claim 19
Dependent Claim
62 words
The surgical valve of claim 12, wherein: the valve body has an outer surface and includes a longitudinal slot; and the means for selectively changing the axial position of the toroidal body includes: a ratchet attached to the outer surface of the valve body, and a pawl attached to the toroidal body, passing through the longitudinal slot, and engaging with the ratchet.
Claim 20
Dependent Claim
14 words
The surgical valve of claim 12, wherein the sealing body comprises an elastomeric foam.
Claim 21
Dependent Claim
14 words
The surgical valve of claim 12, wherein the sealing body comprises an encapsulated gel.
Claim 22
Dependent Claim
107 words
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 position of 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.
Claim 23
Dependent Claim
107 words
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 position of 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.
Claim 24
Dependent Claim
24 words
The surgical valve of claim 20, wherein the position changing means includes a toroidal body attached to the remote part of the braided sleeve.
Claim 25
Dependent Claim
76 words
The surgical valve of claim 21, wherein: the sealing body has an outer surface; the braided sleeve has an inner surface and an outer surface; the toroidal body has an inner surface; the sealing body is mounted within the braided sleeve with the outer surface of the sealing body attached to the inner surface of the braided sleeve; and the outer surface of the braided sleeve is attached to the inner surface of the toroidal body.
Claim 26
Dependent Claim
45 words
The surgical valve of claim 21, wherein: the surgical valve additionally comprises a cylindrical valve body having a bore; the sealing body is attached to the bore of the valve body; and the toroidal body is slidably mounted within the bore of the valve body.
Claim 27
Dependent Claim
49 words
The surgical valve of claim 20, wherein: the surgical valve additionally comprises a cylindrical valve body having a bore; the sealing body is slidably mounted within the bore of the valve body; and the remote part of the braided sleeve is attached to the bore of the valve body.
Claim 28
Dependent Claim
16 words
The surgical valve of claim 20, wherein the braided sleeve is made of a knitted material.
Claim 29
Dependent Claim
30 words
The surgical valve of claim 20, wherein the braided sleeve is made of a woven material, the woven material having a warp that is angularly offset relative to the axis.
Claim 30
Dependent Claim
14 words
The surgical valve of claim 20, wherein the sealing body comprises an elastomeric foam.
Claim 31
Dependent Claim
14 words
The surgical valve of claim 20, wherein the sealing body comprises an encapsulated gel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-15 | 1998-02-14 | 1998-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-15 | 2002-02-14 | 2002-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-15 | 2006-02-14 | 2006-08-16 | $7700.00 | Window Closed / Lapsed |