US4435177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needle assembly
Assignee: Bayer Corp
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Filing: 1982-06-09
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Granted: 1984-03-06
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Expires: 2002-06-09
Abstract
Abstract There is disclosed a needle assembly comprising a needle, a needle-retaining portion, a removable needle protector portion, and a resilient member for removing liquid from the surface of the needle which is disposed around the needle rearward of its point. The liquid removing member has a needle-accommodating opening with a diameter approximately that of the outside diameter of the needle. The member is contained within the needle protector portion and removable from the needle with the removal of the needle protector portion from the assembly. Also disclosed are blood bag systems comprising a donor bag and the aforementioned needle assembly.
Inventors
- 👤 Bruce N. Kuhlemann
- 👤 Kalman Horvath
- 👤 Prentice C. Wharff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:10
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/1412; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150366; A61B5/150374; A61B5/150381; A61B5/150389; A61B5/150503; A61B5/150519; A61B5/150534; A61B5/150541; A61B5/150549; A61B5/15058; A61B5/150618; A61B5/150694; A61B5/150717; A61B5/150992; A61B5/153; A61J1/1462; A61J1/1475; A61J1/1487; A61J1/18; A61M; A61M5/00; A61M5/14; A61M5/158; A61J1/05; A61J1/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
114 words
A needle assembly comprising a needle, a needle-retaining portion, a removable needle protector portion, and a resilient member for removing liquid from the surface of said needle, said liquid-removing member being contained within and removable with said needle protector portion and being positioned around a portion of, and disposed rearward of the point of, said needle, said liquid-removing member further having a needle-accommodating opening with an inner diameter approximately that of the outside diameter of the needle and outer cross sectional dimensions such that at least one of the dimensions is less than the internal cross sectional dimension of the protector, thereby providing a passageway for facilitating steam sterilization rearward of the liquid-removing member.
Claim 2
Dependent Claim
114 words
A needle assembly comprising a needle, a needle-retaining portion, a removable needle protector portion, and a resilient member for removing liquid from the surface of said needle, said liquid-removing member being contained within and removable with said needle protector portion and being positioned around a portion of, and disposed rearward of the point of, said needle, said liquid-removing member further having a needle-accommodating opening with an inner diameter approximately that of the outside diameter of the needle and outer cross sectional dimensions such that at least one of the dimensions is less than the internal cross sectional dimension of the protector, thereby providing a passageway for facilitating steam sterilization rearward of the liquid-removing member.
Claim 3
Dependent Claim
13 words
The assembly of claim 1 wherein the resilient member is a rubber septum.
Claim 4
Dependent Claim
13 words
The assembly of claim 1 wherein the resilient member is a rubber ring.
Claim 5
Dependent Claim
24 words
The assembly of claim 1 wherein the needle-retaining portion and the needle protector portion are separable from each other along a frangile, circumferential groove.
Claim 6
Dependent Claim
20 words
The assembly of claim 1 wherein the needle protector further includes flanges to facilitate gripping of the needle protector portion.
Claim 7
Dependent Claim
21 words
The assembly of claim 1 wherein the needle-retaining portion further includes opposed, laterally-indented portions to facilitate gripping of the needle-retaining portion.
Claim 8
Dependent Claim
11 words
The assembly of claim 1 which further includes a tamper-evident indicator.
Claim 9
Dependent Claim
15 words
The assembly of claim 1 wherein the needle-retaining portion further includes a flexible tube-receiving section.
Claim 10
Dependent Claim
15 words
A blood bag assembly comprising a donor bag and the needle assembly of claim 1.
Claim 11
Dependent Claim
15 words
The blood bag assembly of claim 9 which further comprises at least one satellite bag.
Claim 12
Dependent Claim
142 words
In a needle and needle protector combination including a needle-retaining portion permanently secured to the needle and separable from a needle protector portion along a frangile circumferential groove, the improvement which comprises a resilient member for removing liquid from the surface of said needle, said liquid-removing member being contained within said needle protector portion and removable from the combination with said needle protector portion and disposed rearward of the point of said needle, said-liquid-removing member further having a needle-accommodating opening with an inner diameter such that a gentle, liquid-removing wiping action is exerted on the needle surface without damage to the surface of the needle and outer cross sectional dimensions such that at least one of the dimensions is less than the internal cross sectional dimension of the protector, thereby providing a passageway facilitating steam sterilization rearward of the liquid removing member.
Claim 13
Dependent Claim
142 words
In a needle and needle protector combination including a needle-retaining portion permanently secured to the needle and separable from a needle protector portion along a frangile circumferential groove, the improvement which comprises a resilient member for removing liquid from the surface of said needle, said liquid-removing member being contained within said needle protector portion and removable from the combination with said needle protector portion and disposed rearward of the point of said needle, said-liquid-removing member further having a needle-accommodating opening with an inner diameter such that a gentle, liquid-removing wiping action is exerted on the needle surface without damage to the surface of the needle and outer cross sectional dimensions such that at least one of the dimensions is less than the internal cross sectional dimension of the protector, thereby providing a passageway facilitating steam sterilization rearward of the liquid removing member.
Claim 14
Dependent Claim
18 words
A blood bag assembly comprising a donor bag and the needle and needle protector combination of claim 11.
Claim 15
Dependent Claim
15 words
The blood bag assembly of claim 12 which further comprises at least one satellite bag.
Claim 16
Dependent Claim
29 words
The needle and needle protector combination of claim 11 wherein the needle-accommodating opening has a diameter which further provides for evenly distributing lubricant on the surface of the needle.
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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) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |