US4692155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter
Assignee: PFM Plastik fuer die Medizin GmbH
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Filing: 1985-12-12
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Granted: 1987-09-08
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Expires: 2005-12-12
Abstract
Abstract A catheter for drainage purposes that is to be used predominantly in the area of the skull in the case of operations, having a closed distal end, said end area being perforated by holes and having a connecting part (6) arranged at the rear end of the catheter tube (1) and having a wing cannula (2) with double wings inserted into the catheter tube (1) in the proximity of the rear end of the catheter tube (1), the parts of the cut catheter tube (1) pushed onto the ends of the metal cannula (4) of the wing cannula (2) being fixed by means of fixing threads (5) so that the catheter tube (1) is pressed into ring grooves on the exterior side of the metal cannula (4).
Inventors
- 👤 Gabriele Zimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:23
CPC Classifications
A; A61; A61M; A61M27/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
89 words
A two piece cut elastic catheter tube having a closed distal end having perforations and having a connecting part arranged at the rear end and having a metal cannula having a pair of plastic wings secured thereto inserted between the cut catheter tube in the proximity of the rear end of the catheter tube, the parts of the cut catheter being attached onto the metal cannula and fastened by means of fixing threads, the catheter tube being pressed on ring grooves on the exterior side of the metal cannula.
Claim 2
Dependent Claim
89 words
A two piece cut elastic catheter tube having a closed distal end having perforations and having a connecting part arranged at the rear end and having a metal cannula having a pair of plastic wings secured thereto inserted between the cut catheter tube in the proximity of the rear end of the catheter tube, the parts of the cut catheter being attached onto the metal cannula and fastened by means of fixing threads, the catheter tube being pressed on ring grooves on the exterior side of the metal cannula.
Claim 3
Dependent Claim
23 words
A catheter according to claim 1, wherein the inside diameter of the metal cannula corresponds to the inside diameter of the catheter tube.
Claim 4
Dependent Claim
22 words
A catheter according to claim 1, wherein the outside diameter of the catheter tube is about 2.33 mm to about 4 mm.
Claim 5
Dependent Claim
26 words
A catheter according to claim 1, wherein the rear end of the catheter tube is connected firmly with a connecting part having a female Luer cone.
Claim 6
Dependent Claim
21 words
A catheter according to claim 1, wherein the catheter tube has a length of about 150 mm to about 350 mm.
Claim 7
Dependent Claim
17 words
A catheter according to claim 1, wherein the catheter tube is provided with an X-ray contrasting means.
Claim 8
Dependent Claim
18 words
A catheter according to claim 1, wherein the perforations are distributed over the circumference of the distal end.
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) | 1990-09-07 | 1991-03-09 | 1991-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-07 | 1995-03-09 | 1995-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-07 | 1999-03-09 | 1999-09-08 | $7700.00 | Window Closed / Lapsed |