Patent US4446229A successfully refreshed from Google Patents.
US4446229A
Expired / Lapsed
US
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Method of tissue growth
Assignee: Individual
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Filing: 1982-12-30
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Granted: 1984-05-01
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Expires: 2002-12-30
Abstract
Abstract An in-vitro system capable of supporting tissue growth with a blood supply is described, including a temperature and humidity controlled antiseptic chamber housing a mechanical oxygenator and waste gas removal system, a pumped continuous circulating fluid in a pipe connected to a tissue nidus, exchange membrane and circulating dialysate for waste removal, a nutrient infusion system, and a means of sterilization and immunosuppression. A total artificial life support system is described.
Inventors
- 👤 Robert B. Indech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:22
CPC Classifications
C; C12; C12M; C12M21/00; C12M21/08; A; A01; A01N; A01N1/00; A01N1/10; A01N1/14; A01N1/142; A01N1/143; C12M23/00; C12M23/24; C12M29/00; C12M29/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
168 words
A method of growing tissue allowing vasular ingrowth whereby living tissue is grafted onto a non-immunoreactive mesentary, said mesentary having an arterial and venous system, said arterial and venous system is anastomosed to a tube completing a closed fluid circuit, said tube containing a solution allowing oxygen and carbon dioxide transport of a sufficient quantity for continued growth of said mesentary and said tissue, said tube is connected to a pump to unidirectionally propel said solution, said tube is connected to an artificial lung consisting substantially of a gaseous exchange membrane and a circulated supply of oxygen, said tube is connected to an artificial kidney consisting substantially of an exhange membrane and a circulated supply of dialysate, said tube is connected to an output port and an input port, and whereby a complete system comprising said mesentary, said tissue, said tube, said solution, said pump, said artificial lung, said artificial kidney, said output port, and said input port is contained in a temperature controlled, humidity controlled antiseptic housing.
Claim 2
Independent Claim
168 words
A method of growing tissue allowing vasular ingrowth whereby living tissue is grafted onto a non-immunoreactive mesentary, said mesentary having an arterial and venous system, said arterial and venous system is anastomosed to a tube completing a closed fluid circuit, said tube containing a solution allowing oxygen and carbon dioxide transport of a sufficient quantity for continued growth of said mesentary and said tissue, said tube is connected to a pump to unidirectionally propel said solution, said tube is connected to an artificial lung consisting substantially of a gaseous exchange membrane and a circulated supply of oxygen, said tube is connected to an artificial kidney consisting substantially of an exhange membrane and a circulated supply of dialysate, said tube is connected to an output port and an input port, and whereby a complete system comprising said mesentary, said tissue, said tube, said solution, said pump, said artificial lung, said artificial kidney, said output port, and said input port is contained in a temperature controlled, humidity controlled antiseptic housing.
Claim 3
Dependent Claim
14 words
The method of claim 1 whereby said complete system is rendered aseptic after assembly.
Claim 4
Dependent Claim
26 words
The method of claim 1 whereby tissue growth factor and angiogenesis factor are infused into said solution to encourage growth of tissue and new blood vessels.
Claim 5
Dependent Claim
23 words
The method of claim 1 whereby immunosuppressive drugs are infused into said solution to inhibit reaction of the grafted tissue to the mesentary.
Claim 6
Independent Claim
149 words
A method of growing vascularized tissue whereby the arterial input and the venous output of a vascularized living tissue are respectively anastomosed to the ends of a tube completing a closed fluid circuit, said tube containing a solution allowing oxygen and carbon dioxide transport of a sufficient quantity for continued growth of said tissue, said tube being connected to a pump to propel said solution, said tube being connected to a gaseous exchange membrane and a circulated supply of oxygen, said tube being connected to an exchange membrane and a circulated supply of dialysate, said tube being connected to an output port and an input port, and whereby a complete system comprising said tissue, said tube, said pump, said gaseous exchange membrane, said circulated oxygen supply, said exchange membrane, said circulated dialysate, said input port and said output port is contained in a temperature controlled, humidity controlled antiseptic housing.
Claim 7
Independent Claim
149 words
A method of growing vascularized tissue whereby the arterial input and the venous output of a vascularized living tissue are respectively anastomosed to the ends of a tube completing a closed fluid circuit, said tube containing a solution allowing oxygen and carbon dioxide transport of a sufficient quantity for continued growth of said tissue, said tube being connected to a pump to propel said solution, said tube being connected to a gaseous exchange membrane and a circulated supply of oxygen, said tube being connected to an exchange membrane and a circulated supply of dialysate, said tube being connected to an output port and an input port, and whereby a complete system comprising said tissue, said tube, said pump, said gaseous exchange membrane, said circulated oxygen supply, said exchange membrane, said circulated dialysate, said input port and said output port is contained in a temperature controlled, humidity controlled antiseptic housing.
Claim 8
Dependent Claim
14 words
The method of claim 5 whereby said complete system is rendered aseptic after assembly.
Claim 9
Dependent Claim
27 words
The method of claim 5 whereby tissue growth factor and angiogenesis factor are infused into said input port to encourage growth of tissue and new blood vessels.
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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) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |