Patent US3863641A successfully refreshed from Google Patents.
US3863641A
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US
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Thoracic drainage catheter
Assignee: Institutul Pentru Creatie Stiintifica Si Technica
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Filing: 1973-09-26
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Granted: 1975-02-04
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Expires: 1993-09-26
Abstract
Abstract A thoracic drainage catheter (tamponade proof) used in the thoracic surgery for permitting the evacuation of clots and secretions, provided at one extremity to be placed inside the patient''s intrathoracic zone with lateral orifices and at the other with a tube connected to a vacuum apparatus.
Inventors
- 👤 Ioan Pop D Popa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:27
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/007; A61M1/00; A61M1/84; A61M1/85; A61M25/10; A61M2210/00; A61M2210/10; A61M2210/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A self cleaning catheter for thoracic drainage comprising: a catheter tube body having an end provided with lateral orifices and adapted to be received in a thoracic cavity, and another end having means connectable to a suction source; means for selectively closing the tube comprising a semi-rigid tubular mandrel extending laterally into said tube and having an inflatable end and sized to slide along the wall of said tube along said orifices; and a syringe connected to said tubular mandrel for distending and collapsing thE inflatable end thereof; a rigid tube extending laterally from said catheter tube and communicating with the interior thereof having means for being connected to a graduated cylinder for flushing the catheter tube with a heparine solution when the tube is closed by the end of the mandrel in its inflated state.
Claim 2
Dependent Claim
136 words
A self cleaning catheter for thoracic drainage comprising: a catheter tube body having an end provided with lateral orifices and adapted to be received in a thoracic cavity, and another end having means connectable to a suction source; means for selectively closing the tube comprising a semi-rigid tubular mandrel extending laterally into said tube and having an inflatable end and sized to slide along the wall of said tube along said orifices; and a syringe connected to said tubular mandrel for distending and collapsing thE inflatable end thereof; a rigid tube extending laterally from said catheter tube and communicating with the interior thereof having means for being connected to a graduated cylinder for flushing the catheter tube with a heparine solution when the tube is closed by the end of the mandrel in its inflated state.
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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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |