Patent US2089044A successfully refreshed from Google Patents.
Patent US4453537A successfully refreshed from Google Patents.
US4453537A
Expired / Lapsed
US
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Apparatus for powering a body implant device
Assignee: Individual
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Filing: 1981-08-04
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Granted: 1984-06-12
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Expires: 2001-08-04
Abstract
Abstract An apparatus for powering a pressure actuated body implant device is disclosed. Preferably, the apparatus is utilized to power an artificial heart. The apparatus comprises a reservoir implantable in the body and attachable to a body muscle, a pacemaker having stimulatory electrodes for connection to the body muscle and sensor electrodes for sensing the physiological needs of the body and power output of the body muscle, and tubing for connecting the reservoir to the artificial heart. The apparatus is totally implantable with the body and is toally independent of any external power source.
Inventors
- 👤 Daniel E. Spitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:51
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/372; A61F; A61F2/00; A61M; A61M60/00; A61M60/10; A61M60/122; A61M60/196; A61M60/40; A61M60/424; A61M60/427; A61M60/43; A61M60/80; A61M60/855; A61M60/871; A61M60/882; A61M60/89; A61M60/894; A61M60/126; A61M60/148; A61N1/378; A61N1/3785
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
164 words
A device comprising in combination a body implant device and an apparatus for powering said body implant device; said device comprising a reservoir; said reservoir being implantable in the body adjacent to at least one muscle; a fluid disposed within said reservoir; a pressure actuated body implant device; a conduit connecting said reservoir to said body implant device and providing a fluid connection between said reservoir and body implant device; means for periodically stimulating said at least one body muscle from a relaxed state to a contracted state for periodically contracting said at least one body muscle against said reservoir to pressurize said fluid to cause it to flow from said reservoir toward said body implant device; said body implant device including means responsive to said pressurized fluid for powering said body implant device; upon relaxation of said at least one muscle said reservoir returning to its original unpressurized state, thereby creating a vacuum so as to cause the return of said fluid thereto.
Claim 2
Independent Claim
164 words
A device comprising in combination a body implant device and an apparatus for powering said body implant device; said device comprising a reservoir; said reservoir being implantable in the body adjacent to at least one muscle; a fluid disposed within said reservoir; a pressure actuated body implant device; a conduit connecting said reservoir to said body implant device and providing a fluid connection between said reservoir and body implant device; means for periodically stimulating said at least one body muscle from a relaxed state to a contracted state for periodically contracting said at least one body muscle against said reservoir to pressurize said fluid to cause it to flow from said reservoir toward said body implant device; said body implant device including means responsive to said pressurized fluid for powering said body implant device; upon relaxation of said at least one muscle said reservoir returning to its original unpressurized state, thereby creating a vacuum so as to cause the return of said fluid thereto.
Claim 3
Dependent Claim
20 words
The device of claim 1, wherein said reservoir is a piston-cylinder reservoir comprising a piston slidably disposed within a cylinder.
Claim 4
Dependent Claim
24 words
The device of claim 2, wherein said means responsive to said pressurized fluid comprises a means for expelling blood from said body implant device.
Claim 5
Dependent Claim
40 words
The device of claim 3, wherein said body implant device comprises two chambers and said means for expelling blood from said body implant device comprises two deformable diaphrams, one disposed in each of said chambers of said body implant device.
Claim 6
Dependent Claim
74 words
The device of claim 4, wherein each of said deformable diaphrams divides each of said chambers of said body implant body implant device into a fluid containing section and a blood containing section, whereby when said fluid flows into said body implant device it enters said fluid containing section of each of said chambers and deforms each of said deformable diaphrams, thereby expelling blood from each of said blood containing sections of said chambers.
Claim 7
Dependent Claim
15 words
The device of claim 2, wherein said piston-cylinder reservoir is attached to two body muscles.
Claim 8
Dependent Claim
24 words
The apparatus of claim 3, wherein said means for stimulating said muscle comprises a pacemaker having stimulatory electrodes for connection to said body muscle.
Claim 9
Dependent Claim
66 words
The device of claim 7, wherein said pacemaker includes at least one sensor electrode for sensing the physiological needs of the body; said pacemaker including a microprocessor for receiving information from said at least one sensor, said microprocessor being capable of translating said information and instructing said pacemaker based on said information to transmit the appropriate electrical signals through said stimulatory electrodes to said body muscle.
Claim 10
Dependent Claim
73 words
The apparatus of claim 8, wherein said pacemaker includes an atrial sensor connectable to the atrial portion of the natural heart for sensing the frequency of the endogenously controlled sinoatrial or atrioventricular node; a tension sensor connectable to said reservoir for sensing the tension generated by at least one body muscle on said reservoir; and a pressure sensor connectable to said conduit for sensing the pressure exerted by the fluid in said conduit.
Claim 11
Dependent Claim
57 words
The apparatus of claim 8, wherein said pacemaker includes a pH sensor for sensing the pH of the blood; a tension sensor connectable to said reservoir for sensing the tension exerted by said at least one body muscle; and a pressure sensor connectable to said conduit for sensing the pressure exerted by the fluid in said conduit.
Claim 12
Dependent Claim
14 words
The apparatus of claim 10, wherein said pH sensor is connectable to the aorta.
Claim 13
Dependent Claim
17 words
The apparatus of claim 10, wherein said pacemaker additionally includes blood pressure sensor for sensing blood pressure.
Claim 14
Dependent Claim
15 words
The apparatus of claim 12, wherein said blood pressure sensor is connectable to the aorta.
Claim 15
Dependent Claim
29 words
The apparatus of claim 10, wherein said pacemaker additionally includes an oxygen sensor connectable to the pulmonary artery of the heart for sensing the oxygen content of the blood.
Claim 16
Dependent Claim
15 words
The apparatus of claim 14, wherein said oxygen sensor is connectable to the pulmonary artery.
Claim 17
Dependent Claim
31 words
The apparatus of claim 10, wherein said pacemaker additionally includes a carbon dioxide sensor connectable to the pulmonary artery of the heart for sensing the carbon dioxide content of the blood.
Claim 18
Dependent Claim
16 words
The device of claim 16, wherein said carbon dioxide sensor is connectable to the pulmonary artery.
Claim 19
Dependent Claim
12 words
The device of claim 1, wherein said reservoir is a deformable balloon.
Claim 20
Dependent Claim
26 words
The device of claim 18, wherein said deformable balloon is implantable in the axilla region of the body between the ribs and the pectoralis minor muscle.
Claim 21
Dependent Claim
15 words
The device of claim 19, wherein said deformable balloon is constructed from a bio-compatible plastic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |