Patent DE2547552A1 successfully refreshed from Google Patents.
US4000739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hemostasis cannula
Assignee: Cordis Corp
•
Filing: 1975-07-09
•
Granted: 1977-01-04
•
Expires: 1995-07-09
Abstract
Abstract Hemostasis cannula comprising a body having a passage therethrough adapted to receive a catheter and a pair of juxtaposed gaskets mounted in the passage. The first gasket forms a seal around a catheter enclosed within the cannula; the second gasket is compressed against the first to seal the passage when the catheter is removed. The cannula also features a flexible entrance tube and a port for introducing fluids into a patient's blood vessel.
Inventors
- 👤 Robert C. Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:08
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0662; A61M39/00; A61M39/02; A61M39/06; A61M39/0606; A61M2039/062; A61M2039/0633; A61M2039/064; A61M2039/0653; A61M2039/0686; A61M25/0105; A61M25/0108
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
99 words
A hemostasis cannula comprising a body having a passage therethrough adapted to receive a catheter, a first disc-like gasket having a round hole disposed therein mounted in said passage, and a second disc-like gasket having a Y-slit located therein, said second gasket being mounted in said passage in face-to-face contact with said first gasket, said first gasket being operable to maintain a seal around and to allow manipulation of a catheter contained in said passage, the face-to-face relationship of said gaskets serving to support said second gasket in its closed position when a catheter is absent from said passage.
Claim 2
Dependent Claim
99 words
A hemostasis cannula comprising a body having a passage therethrough adapted to receive a catheter, a first disc-like gasket having a round hole disposed therein mounted in said passage, and a second disc-like gasket having a Y-slit located therein, said second gasket being mounted in said passage in face-to-face contact with said first gasket, said first gasket being operable to maintain a seal around and to allow manipulation of a catheter contained in said passage, the face-to-face relationship of said gaskets serving to support said second gasket in its closed position when a catheter is absent from said passage.
Claim 3
Dependent Claim
18 words
The cannula of claim 1 further comprising a length of flexible tubing in fluid-tight engagement with said body.
Claim 4
Dependent Claim
21 words
The cannula of claim 1 further comprising a port communicating with said passage for introducing fluids into a patient's blood vessel.
Claim 5
Dependent Claim
122 words
A hemostasis cannula comprising a body having a passage therethrough adapted to receive a catheter; first and second disc-like gaskets mounted in said passage in face-to-face contact, said first gasket having a hole disposed therein, and said second gasket having a slit therein; a length of flexible tubing in fluid-tight engagement with said body; and, a port communicating with said body for introducing fluids into a patient's blood vessel, said first gasket being operable to maintain a sealing relationship with a catheter contained in said passage and, when a catheter is not contained in said passage, said gaskets being operable to cooperate to close said passage, said second gasket being compressed against the first to close both the slit and the hole.
Claim 6
Dependent Claim
122 words
A hemostasis cannula comprising a body having a passage therethrough adapted to receive a catheter; first and second disc-like gaskets mounted in said passage in face-to-face contact, said first gasket having a hole disposed therein, and said second gasket having a slit therein; a length of flexible tubing in fluid-tight engagement with said body; and, a port communicating with said body for introducing fluids into a patient's blood vessel, said first gasket being operable to maintain a sealing relationship with a catheter contained in said passage and, when a catheter is not contained in said passage, said gaskets being operable to cooperate to close said passage, said second gasket being compressed against the first to close both the slit and the hole.
References Cited (Backward Citations)
FR430890A
Cited
US2022369A
Cited
US3459183A
Cited
US3585996A
Cited
US3659587A
Cited
US3825001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-04 | 1980-07-05 | 1981-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-04 | 1984-07-05 | 1985-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-04 | 1988-07-05 | 1989-01-04 | $7700.00 | Window Closed / Lapsed |