US4054136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cannula for the introduction of a catheter
Assignee: Individual
•
Filing: 1976-03-02
•
Granted: 1977-10-18
•
Expires: 1996-03-02
Abstract
Abstract A cannula comprises a body having a longitudinal aperture for receiving a catheter. A sealing strip formed of flexible plastic is removably disposed within the longitudinal axis to seal around the catheter. A container is removably connected to the body so as to be in fluid communication with the aperture.
Inventors
- 👤 Dieter von Zeppelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:41
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/065
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
177 words
A cannula for the introduction of a catheter, comprising: an elongated body having a pointed forward end and slot means extending substantially the full length of said body, and an enlarged grip disposed at the rearward end of said body; said grip including a recess therein extending laterally from said slot means and communicating with said slot means and adapted to guide the catheter into said slot means; a plastic strip removably disposed in said body; said strip including a first portion in said slot means and extending throughout said slot means for closing said slot means, and a handle portion secured within said recess to laterally close said recess, so that said handle and grip sealingly surround a catheter inserted within the cannula; said handle portion including means to be gripped for removing said strip from said body; said grip further including a bore which fluidly communicates with, and forms an extension of said slot means; and a container removably connected to said grip in communication with said bore for receiving fluid from said slot means.
Claim 2
Dependent Claim
177 words
A cannula for the introduction of a catheter, comprising: an elongated body having a pointed forward end and slot means extending substantially the full length of said body, and an enlarged grip disposed at the rearward end of said body; said grip including a recess therein extending laterally from said slot means and communicating with said slot means and adapted to guide the catheter into said slot means; a plastic strip removably disposed in said body; said strip including a first portion in said slot means and extending throughout said slot means for closing said slot means, and a handle portion secured within said recess to laterally close said recess, so that said handle and grip sealingly surround a catheter inserted within the cannula; said handle portion including means to be gripped for removing said strip from said body; said grip further including a bore which fluidly communicates with, and forms an extension of said slot means; and a container removably connected to said grip in communication with said bore for receiving fluid from said slot means.
Claim 3
Dependent Claim
29 words
A cannula according to claim 1 wherein said slot means includes walls having longitudinal flutes which mate with said strip to resist removal of said strip from said aperture.
Claim 4
Dependent Claim
11 words
A cannula according to claim 2 wherein said flutes are U-shaped.
Claim 5
Dependent Claim
11 words
A cannula according to claim 2 wherein said flutes are V-shaped.
Claim 6
Dependent Claim
16 words
A cannula according to claim 1 wherein said handle portion is releasably inserted within said grip.
Claim 7
Dependent Claim
31 words
A cannula according to claim 1 wherein said handle portion and said grip are provided with a frangible connection whereby said strip can be removed from said recess and slot means.
References Cited (Backward Citations)
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Cited
US3297030A
Cited
US3359978A
Cited
US3459183A
Cited
US3656479A
Cited
US3713442A
Cited
US3774605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-17 | 1981-04-18 | 1981-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-17 | 1985-04-18 | 1985-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-17 | 1989-04-18 | 1989-10-18 | $7700.00 | Window Closed / Lapsed |