Syringe needle combination

• US 5,015,235 A
• Filed: 09/15/1989
• Issued: 05/14/1991
• Est. Priority Date: 02/20/1987
• Status: Expired due to Term

• Current Assignee: National Carpet Equipment Incorporated
• Original Assignee: National Carpet Equipment Incorporated
• Inventors: Crossman, David D.
• Primary Examiner(s): Kamm, William E.
• Assistant Examiner(s): Getzow, Scott M.
• Application Number:
  US07/408,438
• Time in Patent Office: 606 Days
• Field of Search: 604/187, 604/192, 604/197, 604/178, 604/117, 604/263
• US Class Current: 604/117
• CPC Class Codes: A61M 5/002 Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics needle protection, e.g. caps, A61M5/3202; for sharps A61B50/3001
• CPC Class Codes: A61M 5/3202 Devices for protection of the needle before use, e.g. caps A61M5/50 takes precedence; for infusion spikes A61M5/1626; protectors for sharps A61B50/3001
• CPC Class Codes: A61M 5/3213 Caps placed axially onto the needle, e.g. equipped with finger protection guards axially-extensible protective sleeves A61M5/3243
• CPC Class Codes: A61M 5/46 having means for controlling depth of insertion

Abstract

A needle (11) for a hypodermic syringe is a force fit on a hub (12) which can be secured onto a container for the fluid to be injected. A cover (13) fits over a boss on the hub and provides an enclosure for the needle. The assembly of hub, needle and cover are housed in a container (14) which fits around the hub (12). To control the depth of penetration of the needle, the user selects an adjuster (15) from a set of adjusters of different sizes and fits it over a part of the hub.

Claims

1. A method of injecting a substance into a patient, the method comprising:

(a) providing a needle combination including a needle for a syringe, a hub containing a boss carrying the needle, a depth adjuster and a cover which fits over the boss on the hub and defines an enclosure for the needle;

(b) removably fitting the depth adjuster on the hub, so as to set the degree of penetration of the needle in the patient;

(c) removing the cover;

(d) inserting the needle into the patient; and

(e) injecting the substance through the needle.

2. A method as claimed in claim 1 wherein the needle is a tight fit in the hub.

3. A method as claimed in claim 1 wherein the needle combination includes screw thread means for attaching the hub on the syringe.

4. A method as claimed in claim 1 wherein the depth adjuster is one of a number of alternative adjusters, each of which is of a different length from the others.

5. A method as claimed in claim 1 wherein the depth adjuster is in the form of a sleeve which is fitted to the hub and spaced around the needle.