US4881939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implantable helical cuff
Assignee: Johns Hopkins University
•
Filing: 1985-02-19
•
Granted: 1989-11-21
•
Expires: 2005-02-19
Abstract
Abstract The invention concerns an implantable, inflatable helical cuff which is wrapped about a tubular body member such as a nerve cord, esophagus, colon, intestine, or blood vessel in a pressure transferring relationship. The cuff may be completely inflated to function as an occluder, or partially inflated to function as a pressure sensor or transducer in an appropriate system.
Inventors
- 👤 Arnold L. Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:55
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/68; A61B5/6846; A61B5/6867; A61B5/6876; A61B17/00; A61B17/12; A61B17/12009; A61B5/02; A61B5/021; A61B5/022; A61B5/02233; A61B5/42; A61B5/6879; A61B5/6884; A61B2017/00535; A61B2017/00557; A61B90/00; A61B90/06; Y; Y10; Y10S; Y10S128/00; Y10S128/25
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
98 words
An implantable inflatable cuff which intimately engages the exterior of an elongated body member, the implantable inflatable cuff comprising: a coil which follows a spiral axis and turns about a central axis, said coil having a cross sectional shape that remains constant throughout its length, an elastic inside wall facing said central axis, a lumen within said coil and eccentric to said spiral axis and a fluid contained within said lumen; and a retaining means which is removably positioned about and extends across a plurality of turns of said coil for maintaining said coil in said spiral axis.
Claim 2
Dependent Claim
98 words
An implantable inflatable cuff which intimately engages the exterior of an elongated body member, the implantable inflatable cuff comprising: a coil which follows a spiral axis and turns about a central axis, said coil having a cross sectional shape that remains constant throughout its length, an elastic inside wall facing said central axis, a lumen within said coil and eccentric to said spiral axis and a fluid contained within said lumen; and a retaining means which is removably positioned about and extends across a plurality of turns of said coil for maintaining said coil in said spiral axis.
Claim 3
Dependent Claim
18 words
An apparatus as in claim 1, the retaining means comprising a sleeve which is slipped over the cuff.
Claim 4
Dependent Claim
60 words
An apparatus as in claim 2, including a comparing means, and a reference pressure means which generates a reference pressure value to the comparing means, the cuff detecting pressure within the elongated member and generating a sensed pressure value to the comparing means which generates an actual pressure value dependent on the reference pressure value and the sensed pressure value.
Claim 5
Dependent Claim
25 words
An apparatus as in claim 2, including a driving means connected to the cuff, causing the cuff to transduce energy waves through the elongated member.
Claim 6
Dependent Claim
27 words
An apparatus as in claim 1, the retaining means comprising a wrap which is integral with one end of the cuff and is folded over the coil.
Claim 7
Dependent Claim
59 words
An apparatus as in claim 5, including a comparing means, and a reference pressure means-which generates a reference pressure value to the comparing means, the cuff detecting pressure within the elongated member and generating a sensed pressure value to the comparing means which generates an actual pressure value dependent on the reference pressure value and the sensed pressure value.
Claim 8
Dependent Claim
25 words
An apparatus as in claim 5, including a driving means connected to the cuff, causing the cuff to transduce energy waves through the elongated member.
Claim 9
Dependent Claim
24 words
An apparatus as in claim 1, the retaining means comprising a winding member which is wound about the cuff counter to the cuff coil.
Claim 10
Dependent Claim
60 words
An apparatus as in claim 8, including a comparing means, and a reference pressure means which generates a reference pressure value to the comparing means, the cuff detecting pressure within the elongated member and generating a sensed pressure value to the comparing means which generates an actual pressure value dependent on the reference pressure value and the sensed pressure value.
Claim 11
Dependent Claim
25 words
An apparatus as in claim 8, including a driving means connected to the cuff, causing the cuff to transduce energy waves through the elongated member.
Claim 12
Dependent Claim
60 words
An apparatus as in claim 1, including a comparing means, and a reference pressure means which generates a reference pressure value to the comparing ;means, the cuff detecting pressure within the elongated member and generating a sensed pressure value to the comparing means which generates an actual pressure value dependent on the reference pressure value and the sensed pressure value.
Claim 13
Dependent Claim
22 words
An apparatus as in claim 11, the reference pressure means comprising a pressure reservoir bulb implanted in the vicinity of the cuff.
Claim 14
Dependent Claim
29 words
An apparatus as in claim 11, the reference pressure means comprising a pressure reservoir having a rigid structure, the internal pressure of which is maintained at a predetermined value.
Claim 15
Dependent Claim
29 words
An apparatus as in claim 11, wherein the cuff is coiled about an artery, the reference pressure means comprising a venous helical cuff which is coiled about a vein.
Claim 16
Dependent Claim
28 words
An apparatus as in claim 11, including a fluid pump connected to pump fluid to and from the cuff such that the elastic inside wall expands and contracts.
Claim 17
Dependent Claim
26 words
An apparatus as in claim 15, including a valve connected between the cuff and the pump for maintaining fluid in and releasing fluid from the cuff.
Claim 18
Dependent Claim
18 words
An apparatus as in claim 11, including a needle which pierces the cuff to add and remove fluid.
Claim 19
Dependent Claim
22 words
An apparatus as in claim 11, including a diaphragm member connected to the cuff for forcing fluid to and from the cuff.
Claim 20
Dependent Claim
25 words
An apparatus as in claim 1, including a driving means connected to the cuff, causing the cuff to transduce energy waves through the elongated member.
Claim 21
Dependent Claim
12 words
An apparatus as in claim 19, wherein the cuff transduces sound waves.
Claim 22
Dependent Claim
12 words
An apparatus as in claim 19, wherein the cuff transduces ultrasonic waves.
Claim 23
Dependent Claim
28 words
An apparatus as in claim 19, including a fluid pump connected to pump fluid to and from the cuff such that the elastic inside wall expands and contracts.
Claim 24
Dependent Claim
18 words
An apparatus as in claim 19, including a needle which pierces the cuff to add and remove fluid.
Claim 25
Dependent Claim
22 words
An apparatus as in claim 19, including a diaphragm member connected to the cuff for forcing fluid to and from the cuff.
Claim 26
Dependent Claim
28 words
An apparatus as in claim 1, including a fluid pump connected to pump fluid to and from the cuff such that the elastic inside wall expands and contracts.
Claim 27
Dependent Claim
18 words
An apparatus as in claim 1, including a needle which pierces the cuff to add and remove fluid.
Claim 28
Dependent Claim
22 words
An apparatus as in claim 1, including a diaphragm member connected to the cuff for forcing fluid to and from the cuff.
Claim 29
Dependent Claim
25 words
An apparatus as in claim 1, wherein said retaining means comprises a guide element in which said coil is threaded to follow the spiral axis.
Claim 30
Dependent Claim
40 words
An apparatus as in claim 28, including a clipping means, the tube having a bead at one end and an annular slot at another end which is engaged by the clipping means to secure the tube to the guide element.
Claim 31
Dependent Claim
35 words
An apparatus as in claim 29, the guide element having a curved surface which contacts the exterior of the elongated body member, and a coil orienting means which retains the tube along the spiral axis.
Claim 32
Dependent Claim
25 words
An apparatus as in claim 30, the flanged member comprising a plate, and the coil orienting means comprising holes through which the tube is threaded.
Claim 33
Dependent Claim
28 words
An apparatus as in claim 30, the flanged member comprising a series of rings which are integral with the curved surface, and through which the tube is threaded.
Claim 34
Dependent Claim
33 words
An apparatus as in claim 30, the flanged member having two faces angularly joined, and a series of holes which connect the two faces, the tube being threaded through the series of holes.
Claim 35
Dependent Claim
26 words
An apparatus as in claim 30, the flanged member having a series of clip-rings by which the tube is helically secured about the elongated body member.
Claim 36
Dependent Claim
60 words
An apparatus as in claim 30, including a comparing means, and a reference pressure means which generates a reference pressure value to the comparing means, the cuff detecting pressure within the elongated member and generating a sensed pressure value to the comparing means which generates an actual pressure value dependent on the reference pressure value and the sensed pressure value.
Claim 37
Dependent Claim
25 words
An apparatus as in claim 35, including an inflating means which connects to the tube to add fluid to and subtract fluid from the lumen.
Claim 38
Dependent Claim
25 words
An apparatus as in claim 36, including a driving means connected to the cuff, causing the cuff to transduce energy waves through the elongated member.
Claim 39
Dependent Claim
25 words
An apparatus as in claim 30, including a driving means connected to the cuff, causing the cuff to transduce energy waves through the elongated member.
References Cited (Backward Citations)
US1366121A
Cited
US3409014A
Cited
US3454010A
Cited
US3538917A
Cited
US3750194A
Cited
US3993076A
Cited
US4016883A
Cited
US4256094A
Cited
US4391148A
Cited
US4406281A
Cited
US4428365A
Cited
US4498473A
Cited
US4556050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |