Safety needle assembly with locking retraction

• US 20040087913A1
• Filed: 11/04/2002
• Published: 05/06/2004
• Est. Priority Date: 11/04/2002
• Status: Active Grant

• Current Assignee: Aragon Medical Corporation
• Original Assignee: Aragon Medical Corporation
• Inventors: Rogers, Bob, Godfrey, Mark
• Granted Patent: US 6,878,134 B2
• Time in Patent Office: Days
• US Class Current: 604/263
• CPC Class Codes: A61M 25/0631 having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle

Abstract

Provided is an assembly in which a needle is safely housed in a cover. A safety mechanism prevents the needle from being removed from a device, unless the needle is in a “needle safe position”.

Claims

1. A safety needle assembly, comprising:

a needle assembly, which is movable between an extended position, and a retracted position;

a locking assembly, which locks said needle in said retracted position; and

a mechanical movement assembly which allows another movement only when said needle is in said retracted position, said another movement being one which enables removing said needle assembly from a connected device.

2. An assembly as in claim 1, further comprising a housing, and said needle assembly is movable between said extended position in which it extends outside said housing, and said retracted position in which it retracts inside inner surfaces defining said housing.

3. An assembly as in claim 2, wherein said another movement comprises another retraction of another device relative to said housing.

4. An assembly as in claim 3, wherein said mechanical movement assembly comprises a slide assembly, and said retraction relative to said housing comprises sliding said slide assembly against inner surfaces of said housing.

5. An assembly as in claim 4, further comprising a needle locking assembly, which locks said needle to a connection.

6. An assembly as in claim 5, further comprising a connection between said slide assembly and said needle locking assembly.

7. An assembly as in claim 6, wherein said connection enables said needle locking assembly to be removed from said connection once said slide assembly is in a specified position.

8. An assembly as in claim 2, wherein said housing is substantially cylindrical in shape.

9. An assembly as in claim 1, wherein said needle assembly includes a handle part, with a part for pressing said needle assembly.

10. An assembly as in claim 9, wherein said handle part is substantially clear.

11. An assembly as in claim 9, wherein said handle part includes a part enabling detection of blood flow.

12. A system, comprising:

a hollow needle;

a connector portion, fluidly connected to said hollow needle;

a needle housing comprising;

a first end, said first end comprising an opening and a fitting;

a second end, said second end comprising at least one locking detect/ledge;

an outer surface; and

an inner surface, said inner surface defining a first sliding area;

a needle handle, comprising;

an outer handle portion located on said outer surface of said housing capable of sliding a substantial length of said needle housing;

an inner handle portion within said inner surface of said needle housing; and

an internal needle fluidly connected to said inner handle portion and in alignment with said opening on said first end of said housing, and

a sliding mechanism, comprising

a first end, said first end comprising a locking tab;

a second end comprising a tongue and at least one flange,

wherein said sliding mechanism is located within said inner surface of said needle housing and wherein said sliding mechanism is located between said inner handle portion and said housing;

wherein the connector is capable of attachment and removal from said first end of said housing.

13. The system of claim 12, wherein said connector portion comprises at least one attachment detent.

14. The system of claim 12, wherein said connector portion comprises a septum or valve.

15. The system of claim 12, wherein said first end of said needle housing is a male fitting.

16. The system of claim 15, wherein said first end of said needle housing is a male luer fitting.

17. The system of claim 12, wherein said first end of said needle housing comprises one or more threads.