FR2279329A1 - Preparing natural tissues, valves, blood vessels, for transplant - curing fluid at physiological pressure restores tissues natural shape - Google Patents
Preparing natural tissues, valves, blood vessels, for transplant - curing fluid at physiological pressure restores tissues natural shapeInfo
- Publication number
- FR2279329A1 FR2279329A1 FR7520115A FR7520115A FR2279329A1 FR 2279329 A1 FR2279329 A1 FR 2279329A1 FR 7520115 A FR7520115 A FR 7520115A FR 7520115 A FR7520115 A FR 7520115A FR 2279329 A1 FR2279329 A1 FR 2279329A1
- Authority
- FR
- France
- Prior art keywords
- tissues
- natural
- shape
- fluid
- curing fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
- A61F2/2415—Manufacturing methods
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Surgical Instruments (AREA)
Abstract
Natural tissues are prepd. for transplanting by subjecting the parts of the organs or vessels which, when transplanted and exposed to pressures within the biological range, take up their pristine form, to the action of a curing fluid at a similar pressure within the biological range, so that they readopt their original form; whilst the remaining parts of the tissues are subjected to fixing by a curing fluid at a lower pressure. In its natural condition, the vessel may have a shape identical with or different from the shape given to it. This may be a "U"-form, and during exposure to the fixing fluid, guides such as glass tubes, smaller in diameter may be inserted into the vessel, or the guide may consist of a tube curved to the required shape and having an inside diameter near enough to the outside diameter of the tissue under pressure. Overcomes the problem of shrinkage during curing and subsequent expansion when implanted, the degree of which cannot be anticipated with complete accuracy. Heart valves liable to leakage can be rejected beforehand, and setting without undesirable tension is simplified.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49068674A | 1974-07-22 | 1974-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2279329A1 true FR2279329A1 (en) | 1976-02-20 |
| FR2279329B1 FR2279329B1 (en) | 1977-07-22 |
Family
ID=23949068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7520115A Granted FR2279329A1 (en) | 1974-07-22 | 1975-06-26 | Preparing natural tissues, valves, blood vessels, for transplant - curing fluid at physiological pressure restores tissues natural shape |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5114794A (en) |
| DE (1) | DE2519106C2 (en) |
| FR (1) | FR2279329A1 (en) |
| IT (1) | IT1035993B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1982000091A1 (en) * | 1980-07-01 | 1982-01-21 | V Ketharanathan | Vascular prostheses |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG18510A1 (en) * | 1973-01-09 | 1975-02-25 |
-
1975
- 1975-04-17 JP JP4693675A patent/JPS5114794A/en active Granted
- 1975-04-29 DE DE19752519106 patent/DE2519106C2/en not_active Expired
- 1975-06-04 IT IT4990175A patent/IT1035993B/en active
- 1975-06-26 FR FR7520115A patent/FR2279329A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IT1035993B (en) | 1979-10-20 |
| JPS5114794A (en) | 1976-02-05 |
| DE2519106C2 (en) | 1986-12-04 |
| FR2279329B1 (en) | 1977-07-22 |
| DE2519106A1 (en) | 1976-02-05 |
| JPS5744642B2 (en) | 1982-09-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |