US4191186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable digit engageable means for separating a catheter and stylet
Assignee: Abbott Laboratories
•
Filing: 1977-12-12
•
Granted: 1980-03-04
•
Expires: 1997-12-12
Abstract
Abstract A catheter-outside catheter placement unit wherein the catheter and stylet have connected hubs separable by a removable digit engageable means. Preferably, the removable digit engageable means is carried by a sleeve fitted over the catheter hub.
Inventors
- 👤 Robert J. Keeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:15
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0606
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
137 words
In a catheter placement unit including: a stylet having a sharpened first end and a second end embedded in a tubular stylet hub having a receiving end of reduced diameter, a flexible catheter slidably disposed over said stylet, a first end of said catheter terminating short of said sharpened first end of said stylet and tapering away therefrom and a second end of said catheter attached to a first end of a tubular catheter hub having a second end loosely and removably disposed over said receiving end of said stylet hub, said catheter hub having digit engageable means associated therewith for facilitating removal of said catheter hub from said stylet hub; the improvement which comprises: said digit engageable means being removably associated with said catheter hub and removable quickly and easily therefrom by a single handed operation.
Claim 2
Dependent Claim
137 words
In a catheter placement unit including: a stylet having a sharpened first end and a second end embedded in a tubular stylet hub having a receiving end of reduced diameter, a flexible catheter slidably disposed over said stylet, a first end of said catheter terminating short of said sharpened first end of said stylet and tapering away therefrom and a second end of said catheter attached to a first end of a tubular catheter hub having a second end loosely and removably disposed over said receiving end of said stylet hub, said catheter hub having digit engageable means associated therewith for facilitating removal of said catheter hub from said stylet hub; the improvement which comprises: said digit engageable means being removably associated with said catheter hub and removable quickly and easily therefrom by a single handed operation.
Claim 3
Dependent Claim
38 words
The catheter placement unit defined in claim 1, wherein said digit engageable means is integrally molded to said catheter hub and includes a weakened portion which facilitates said removal of said digit engageable means from said catheter hub.
Claim 4
Dependent Claim
20 words
The catheter placement unit defined in claim 1, wherein said digit engageable means is friction fitted to said catheter hub.
Claim 5
Dependent Claim
31 words
The catheter placement unit defined in claim 3, wherein said digit engageable means includes a substantially semicircular clasp having an inner diameter complementary to the outer diameter of said catheter hub.
Claim 6
Dependent Claim
43 words
The catheter placement unit defined in claim 3, wherein said digit engageable means includes a tubular portion inserted into said catheter hub at said second end and having outer dimensions complementary to the inner dimensions of said catheter hub at said second end.
Claim 7
Dependent Claim
22 words
The catheter placement unit defined in claim 1, wherein said digit engageable means includes a tubular portion fitted over said catheter hub.
Claim 8
Dependent Claim
26 words
the catheter placement unit defined in claim 6, wherein said tubular portion further includes an appendage therefrom adapted to be removably affixed to said stylet hub.
Claim 9
Dependent Claim
19 words
The catheter placement unit defined in claim 7, wherein said appendages are springs integrally molded to said tubular portion.
Claim 10
Dependent Claim
26 words
The catheter placement unit defined in claim 6, wherein said tubular portion further includes an appendage therefrom adapted to be removably affixed to said catheter hub.
Claim 11
Dependent Claim
24 words
The catheter placement unit defined in claim 1, wherein said digit engageable means is disposed substantially at said second end of said catheter hub.
References Cited (Backward Citations)
US2764978A
Cited
AT181354B
Cited
CH400463A
Cited
US3348544A
Cited
US3312220A
Cited
US3454006A
Cited
US3472232A
Cited
FR1534119A
Cited
US3584624A
Cited
US3714945A
Cited
US3677243A
Cited
SU448861A2
Cited
US3860006A
Cited
US3856020A
Cited
US3923066A
Cited
US3921633A
Cited
US4079738A
Cited
FR2371204A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |