US4248246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampling needle protector
Assignee: Terumo Corp
•
Filing: 1979-07-05
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Granted: 1981-02-03
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Expires: 1999-07-05
Abstract
Abstract A protector for enclosing the needle body of a sampling needle after collection of blood or coeliac liquid comprises a cylindrical member having a hydrophilic inner wall and whose base end is opened, the inner wall of said opening being so shaped as to ensure engagement with the hub of the sampling needle; and a seal material filled in the cylindrical member for embedment of at least the end opening of the sampling needle therein.
Inventors
- 👤 Tatsuhiko Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:18
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3202; A61B; A61B10/00; A61B50/00; A61B50/30; A61B50/3001; A61M2005/3103; A61M2005/3107; A61M2005/3109
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
204 words
A protector for a sampling needle of a sampling device for collecting blood or coeliac liquid, the sampling needle having a hub and an elongated needle extending therefrom, the needle having an end opening; the sampling device including a syringe having a plunger, and means for engagement with said sampling needle; the protector comprising: a cylindrical member having a hydrophilic inner wall, at least one end of said cylindrical member having an opening for insertion of a sampling needle therein, the inner wall of said opening having engagement means for engaging the hub of a sampling needle inserted into the opening; and a seal material filled in the interior of said cylindrical member and into which said sampling needle is insertable for embedding at least the end opening of the sampling needle therein, the seal material being formed of the substance which is pierceable by a 20-gauge sampling needle to a depth of 10 mm with a smaller load than 2 Kg, and which prevents a sample liquid received in a syringe from leaking out of the tip of the sampling needle even when the plunger of the syringe fitted with the sampling needle pushes the sample liquid with a load of 1 Kg.
Claim 2
Dependent Claim
204 words
A protector for a sampling needle of a sampling device for collecting blood or coeliac liquid, the sampling needle having a hub and an elongated needle extending therefrom, the needle having an end opening; the sampling device including a syringe having a plunger, and means for engagement with said sampling needle; the protector comprising: a cylindrical member having a hydrophilic inner wall, at least one end of said cylindrical member having an opening for insertion of a sampling needle therein, the inner wall of said opening having engagement means for engaging the hub of a sampling needle inserted into the opening; and a seal material filled in the interior of said cylindrical member and into which said sampling needle is insertable for embedding at least the end opening of the sampling needle therein, the seal material being formed of the substance which is pierceable by a 20-gauge sampling needle to a depth of 10 mm with a smaller load than 2 Kg, and which prevents a sample liquid received in a syringe from leaking out of the tip of the sampling needle even when the plunger of the syringe fitted with the sampling needle pushes the sample liquid with a load of 1 Kg.
Claim 3
Dependent Claim
23 words
The sampling needle protector according to claim 1, wherein the seal material is mainly formed of fine powders of inorganic or organic material.
Claim 4
Dependent Claim
25 words
The sampling needle protector according to claim 1, wherein the seal material is formed of paraffin having a melting point of 48° to 54° C.
Claim 5
Dependent Claim
23 words
The sampling needle protector according to claim 1, wherein the seal material comprises polyurethane having Shore A hardness of 25° to 35° .
Claim 6
Dependent Claim
32 words
The sampling needle protector according to claim 1, wherein said engagement means comprises a plurality of ribs formed on and projecting from the inner wall of said end opening of said protector.
Claim 7
Dependent Claim
41 words
The sampling needle protector according to any one of claims 1, 2, 3, 4 or 5, comprising a tube in which the seal material is filled, said tube being formed of soft plastic material and being received in said cylindrical member.
References Cited (Backward Citations)
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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) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |