US3766915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic needle holder
Assignee: Illinois Tool Works Inc
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Filing: 1971-12-21
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Granted: 1973-10-23
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Expires: 1991-12-21
Abstract
Abstract An intravenous catheter and cannula assembly as a sterile package with a flexible catheter partially telescoped within the cannula which is of the break-away needle type having wings to be manipulated in parting the cannula from the vein-inserted catheter; and a plastic handle interfitted with the wings for manipulation thereof and serving to secure a plastic bag or sheath thereto as a sterile covering for the remaining length of the catheter therein; and with a protective tube-like cover for the needle end of the cannula to maintain the sterile condition of the assembly as a whole prior to vein insertion use.
Inventors
- 👤 F Rychlik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:00
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0612; A61M25/0637; A61M25/0631
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
133 words
A sterile catheter and cannula assembly, comprising a breakaway split cannula needle with a catheter tube telescoped therein and a removable protective tube covering the needle end of the cannula and having radially projecting wings to be separated in removing the cannula from the implanted catheter tube, a flexible plastic sheath enclosing at least the wings and included catheter tube, and a handle member with handle sections interfitted with and enclosing the cannula wings with the included sheath portion sandwiched therebetween for attachment, the free edges of the handle sections being provided with slots receiving the free edges of the cannula wings for interlocking engagement therewith, whereby separation of the handle sections will spread the cannula wings and needle with rupture of the sheath for removing the cannula from the implanted catheter tube.
Claim 2
Dependent Claim
133 words
A sterile catheter and cannula assembly, comprising a breakaway split cannula needle with a catheter tube telescoped therein and a removable protective tube covering the needle end of the cannula and having radially projecting wings to be separated in removing the cannula from the implanted catheter tube, a flexible plastic sheath enclosing at least the wings and included catheter tube, and a handle member with handle sections interfitted with and enclosing the cannula wings with the included sheath portion sandwiched therebetween for attachment, the free edges of the handle sections being provided with slots receiving the free edges of the cannula wings for interlocking engagement therewith, whereby separation of the handle sections will spread the cannula wings and needle with rupture of the sheath for removing the cannula from the implanted catheter tube.
Claim 3
Dependent Claim
22 words
An assembly as claimed in claim 1, wherein the free edges of the handle sections are directed outwardly for finger gripping thereof.
Claim 4
Dependent Claim
24 words
An assembly as claimed in claim 2, wherein the handle sections are provided along the edges thereof with mutually interfitting lug and recess means.
Claim 5
Dependent Claim
29 words
An assembly as claimed in claim 1, wherein the handle sections are provided along the edges with mutually inter-fitting lug and recess means with the cannula wings disposed therebetween.
References Cited (Backward Citations)
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US3017884A
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US3055361A
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Cited
US3672367A
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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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |