Patent US3659593A successfully refreshed from Google Patents.
US3659593A
Expired / Lapsed
US
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Cardiovascular assist device
Assignee: Individual
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Filing: 1970-04-20
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Granted: 1972-05-02
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Expires: 1990-04-20
Abstract
Abstract A cardiovascular assist device for producing an inwardly orienting pulsating pressure circumferentially to the entire length of each extremity of a patient, including a main body portion surrounding the extremity and a lateral body portion being inflatable to tightly constrict the main body portion about the extremity before pulsation. The lateral body portion includes a single inflatable tube having connecting tapes extending substantially entirely circumferentially therearound and oppositely circumferentially at least partially around said main body portion to terminal ends secured to the main body portion. The main body portion includes an outer restraint material reinforced by a plurality of circumferentially extending and a plurality of longitudinally extending restraint tapes, two sheets of resilient material circumferentially bonded together at longitudinal intervals and longitudinally along seams to produce a plurality of overlapping circumferentially extending inflatable bladders, which are longitudinally spaced from each other, an inner pouch material and a plurality of fluid couplings communicating with each bladder and inflatable tube. Mittens are provided to close one end of each main body portion and similarly constructed to provide an inwardly pulsating pressure to the respective hand or foot of the patient. The main body portions and mittens may be donned and doffed by means of respective longitudinally extending fasteners, and thereafter manually circumferentially constricted by means of longitudinally extending lacings prior to the pressure constriction caused by inflating the lateral body portion.
Inventors
- 👤 Edwin G Vail
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:21
CPC Classifications
A; A61; A61H; A61H9/00; A61H9/005; A61H9/0078; A61H2230/00; A61H2230/04; Y; Y10; Y10S; Y10S128/00; Y10S128/15
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
155 words
A cardiovascular assist device, comprising: a main body portion adapted to be assembled around the extremIty of a patient, and having a longitudinal extent with opposite ends; fluid expandable bladder means within said main body portion for exerting an inward pulsating pressure to the patient corresponding to pulsating fluid pressure supplied to the bladder means; separate fluid expandable chamber means adjacent to and parallel to the longitudinal extent of said main body portion for expansion in response to fluid pressure supplied thereto to constrict said bladder means around the extremity of the patient, closure means attached to at least one end of said longitudinal extent of said main body portion, said closure means including a rigid plate longitudinally extending along one side and adapted to receive the sole or palm of the patient, and bladder means extending around the entire circumference of the closure means, said bladder means being positioned inwardly of said rigid plate.
Claim 2
Dependent Claim
155 words
A cardiovascular assist device, comprising: a main body portion adapted to be assembled around the extremIty of a patient, and having a longitudinal extent with opposite ends; fluid expandable bladder means within said main body portion for exerting an inward pulsating pressure to the patient corresponding to pulsating fluid pressure supplied to the bladder means; separate fluid expandable chamber means adjacent to and parallel to the longitudinal extent of said main body portion for expansion in response to fluid pressure supplied thereto to constrict said bladder means around the extremity of the patient, closure means attached to at least one end of said longitudinal extent of said main body portion, said closure means including a rigid plate longitudinally extending along one side and adapted to receive the sole or palm of the patient, and bladder means extending around the entire circumference of the closure means, said bladder means being positioned inwardly of said rigid plate.
Claim 3
Dependent Claim
39 words
The device of claim 1, wherein said main body portion is adapted to extend substantially the full longitudinal length of the patient''s corresponding extremity; said expandable chamber means extending substantially the entire longitudinal length of said main body portion.
Claim 4
Dependent Claim
68 words
The device of claim 1, including a plurality of separate connecting tapes, each secured at their opposite ends to said main body portion, to extend from one end partially around said main body portion, between said main body portion and said expandable chamber, reversely around said expandable chamber, between said main body portion and said expandable chamber and partially around said main body portion to its other end.
Claim 5
Dependent Claim
42 words
The device of claim 1, including releasable fastener means extending for substantially the full length of said main body portion to permit opening and closing of said main body portion along one entire longitudinal side for donning and doffing by the patient.
Claim 6
Dependent Claim
33 words
The device of claim 1, wherein said main body portion includes lacing means extending for substantially its full longitudinal length to permit manual constriction and expansion of said main body portion bladder means.
Claim 7
Dependent Claim
22 words
The device of claim 1, including a plurality of said cuff assemblies adapted to be attached to each extremity of the patient.
Claim 8
Dependent Claim
68 words
The device of claim 1, wherein said main body portion has an outer layer of restraint material being substantially more dimensionally stable than said bladder means and extending for the full longitudinal length and full circumference of said main body portion; and a pouch material forming the inside surface of said main body portion and extending for the full longitudinal length and circumference of said main body portion.
Claim 9
Dependent Claim
50 words
The device of claim 7, including a plurality of restraint tapes longitudinally spaced with respect to each other and extending circumferentially around said main body portion; and a plurality of additional restraint tapes circumferentially spaced from each other and extending for the full longitudinal length of said main body portion.
Claim 10
Dependent Claim
47 words
The device of claim 1, including slot means permitting the passage of a catheter radially through said main body portion to the arm area of the patient opposite from the elbow; said slot means being a narrow longitudinally aligned slot extending completely through said main body portion.
Claim 11
Dependent Claim
37 words
The device of claim 9, including reinforcing means extending externally completely around said slot; and binding means extending completely externally around said slot, along all the inner walls of said slot and continuously internally around said slot.
Claim 12
Dependent Claim
22 words
The device of claim 1, wherein said closure means includes a mitten-type body forming a closure for one end of said body.
Claim 13
Dependent Claim
39 words
The device of claim 11, including fluid expandable bladder means extending at least partially circumferentially around said mitten and longitudinally thereof for exerting an inward pulsating pressure to the patient in response to being supplied pulsating fluid under pressure.
Claim 14
Dependent Claim
19 words
The device of claim 11, wherein said mitten has releasable fastener means eXtending for substantially its full longitudinal length.
Claim 15
Dependent Claim
39 words
The device of claim 13, wherein said mitten includes lacing means extending for substantially the full longitudinal length of said mitten and on each side of said releasable fastener means, for manually constricting said mitten in the circumferential direction.
Claim 16
Dependent Claim
28 words
The device of claim 11, wherein said mitten includes a rigid plate longitudinally extending along one side and adapted to receive the sole or palm of the patient.
Claim 17
Dependent Claim
39 words
The device of claim 1, wherein said main body portion bladder means includes a plurality of separate inflatable bags longitudinally spaced with respect to each other and each circumferentially extending around the full circumference of the main body portion.
Claim 18
Dependent Claim
51 words
The device of claim 16, wherein each of said inflatable bags has opposed overlapping ends, with the corresponding ends of all inflatable bags being longitudinally aligned; and releasable fastener means for completely opening one longitudinal side of said main body portion radially opposite from said overlapping ends of said inflatable bags.
Claim 19
Dependent Claim
24 words
The device of claim 16, wherein each inflatable bag includes a separate fluid coupling; and said expandable chamber means including a separate fluid coupling.
Claim 20
Dependent Claim
25 words
The device of claim 16, including a plurality of longitudinally spaced and circumferentially extending restraint tapes, with each tape longitudinally alternating with said inflatable bags.
Claim 21
Dependent Claim
140 words
The device of claim 16, including restraint material circumferentially extending completely around and longitudinally along said main body portion to form its outer surface; pouch material circumferentially extending around and longitudinally along said main body portion to form its inner surface; a plurality of restraint tapes, each extending circumferentially along the outer surface of said restraint material immediately radially opposite the division between longitudinally adjacent inflatable bags; a plurality of binding tapes circumferentially extending around the inner surface of said pouch material directly radially opposite the division between longitudinally adjacent inflatable bags; each of said inflatable bags being formed of two resilient sheets; respective ones of said restraint tapes, said restraint material, said resilient sheets, said pouch material, and respective ones of said binding tapes being circumferentially bonded one to the other at least along a common radially extending plane.
Claim 22
Dependent Claim
40 words
The device of claim 16, wherein each of said inflatable bags is constructed of only two resilient sheets bonded together along circumferential lines forming the division between longitudinally adjacent bags and together along two longitudinal lines forming said overlapping ends.
Claim 23
Dependent Claim
115 words
The device of claim 21, including restraint material circumferentially and longitudinally surrounding and forming the outer layer of said main body portion; a plurality of anchor tabs, each having one end secured to the inner surface of said restraint material and an opposite end secured to a respective one of said inflatable bags; a pouch material circumferentially extending and longitudinally extending to form the inner surface of said main body portion; a plurality of anchor tabs each having one end secured to a respective one of said inflatable bags and an opposite end secured to said pouch material; all of said anchor tabs being located immediately radially of the division between longitudinally adjacent inflatable bags.
Claim 24
Dependent Claim
25 words
The device of claim 22, including a restraint tape circumferentially extending around said main body portion radially opposite each division between longitudinally adjacent inflatable bags.
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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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |