Lancet needle anchor method

• US 6,723,111 B2
• Filed: 04/09/2003
• Issued: 04/20/2004
• Est. Priority Date: 08/19/2002
• Status: Expired due to Fees

• Current Assignee: Prodigy Diabetes Care LLC
• Original Assignee: Vital Care Reps Incorporated
• Inventors: Celikoglu, Erol, Abulhaj, Ramzi F.
• Primary Examiner(s): Thaler, Michael H.
• Application Number:
  US10/408,285
• Publication Number:
  US 20040039408A1
• Time in Patent Office: 377 Days
• Field of Search: 606/181, 606/182, 606/183, 606/167, 606/185, 303/42, 303/43, 761/19, 264/645, 264/537, 425/577
• US Class Current: 606/181
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150183 Depth adjustment mechanism using end caps mounted at the distal end of the sampling device, i.e. the end-caps are adjustably positioned relative to the piercing device housing for example by rotating or screwing
• CPC Class Codes: A61B 5/150282 for piercing elements, e.g. blade, lancet, canula, needle
• CPC Class Codes: A61B 5/150435 Specific design of proximal end
• CPC Class Codes: A61B 5/150519 Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
• CPC Class Codes: A61B 5/150549 Protectors removed by rotational movement, e.g. torsion or screwing
• CPC Class Codes: A61B 5/150618 Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
• CPC Class Codes: A61B 5/15105 Purely manual piercing, i.e. the user pierces the skin without the assistance of any driving means or driving devices
• CPC Class Codes: A61B 5/15186 Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
• CPC Class Codes: B29C 45/14065 Positioning or centering articles in the mould
• CPC Class Codes: B29C 45/14549 Coating rod-like, wire-like or belt-like articles B29C45/14426 takes precedence

Abstract

A lancet body 15 is molded around a needle or blade, in which the inner end of the needle body which is unsharpened has an L-shape bend at the unsharpened end. The bend, when embedded in the plastic which forms the body of the lancet, secures the needle against removal. The method involves the bending substantially perpendicularly of the unsharpened end of the lancet needle or blade to be substantially perpendicular with the elongate body of the blade. The needle or blade is placed within a jig interiorly of the plastic mold. The jig includes spaced opposed clamps and a single orienting support to the bent portion of the needle. The body of the lancet is relieved in many areas to reduce material cost and has a molded tab cover eliminating a loose part such as a separate cover.

Claims

1. A method of forming a lancet having a needle or blade within an elongate lancet body, produced in accordance with the following steps:

bending one end of said needle or blade, and sharpening the other end to form a point;

forming a mold for the lancet body which forms a cavity complementary to the shape the lancet body including forming a cap portion to encapsulate the sharpened end of the needle or blade;

providing opposed clamping members at an interior portion of the mold in vise-like relationship to the needle or blade;

injecting plastic into the mold after the needle or blade has been positioned therein; and

thereafter opening the mold and removing the lancet;

whereby the needle or blade is sanitarily housed within the lancet body with the needle or blade point encapsulated in the head and revealing, through the recesses in the lancet body left by the withdrawal of the jig, opposite sides of the needle or blade.

2. A method of forming a lancet having a needle or blade within a lancet body, including the steps of:

a) providing a needle or blade having a first sharpened end and a second end remote from said first end;

b) providing a bend in said needle or blade remote from said first end;

c) providing a mold with at least one cavity configured to create said lancet body;

d) clamping said needle or blade within said at least one cavity with a clamp engaging said needle or blade from opposed sides thereof;

e) injecting plastic into said mold, said plastic encapsulating said bend and surrounding said clamp;

f) removing said lancet.

3. The method of claim 2, during said removing step, further including the step of unclamping said clamp to create opposed holes in said needle or blade to view.

4. The method of claim 2, wherein said clamp includes opposed clamping members.

5. The method of claim 4, wherein one of said clamping members has a concave end surface and another of said clamping members has a convex end surface.

6. The method of claim 5, wherein said clamping member with said concave end surface has a larger diameter than a diameter of said another of said clamping members.

7. The method of claim 2, further including the step of providing said mold cavity with a region adapted to mold a cap portion for said sharpened end of said needle on blade.

8. The method of claim 2, wherein said at least one cavity comprises a plurality of cavities and further including the step of simultaneously molding a plurality of lancet bodies.

9. The method of claims 8, wherein said clamp includes opposed clamping members.

10. The method of claim 9, wherein one of said clamping members has a concave end surface and another of said clamping members has a convex end surface.

11. The method of claim 2, further including the step of providing said cavity with a support for said bend.

12. The method of claim 11, wherein said bend is at said second end of said needle or blade.

13. A method of forming a lancet having a needle or blade within a lancet body, including the steps of:

a) providing a needle or blade having a first sharpened end and a second end remote from said first end;

b) providing a bend in said needle or blade at said second end;

c) providing a mold with at least one cavity configured to create said lancet body;

d) clamping said needle of blade within said at least one cavity with a clamp engaging said needle or blade from opposed sides thereof;

e) removing said lancet and unclamping said clamp to create opposed holes in said lancet body exposing said needle or blade to view.

14. The method of claim 13, wherein said clamp includes opposed clamping members.

15. The method of claim 14, wherein one of said clamping members has a concave end surface and another of said clamping members has a convex end surface.

16. The method of claim 15, wherein said clamping member with said concave end surface has a larger, diameter than a diameter of said another of said clamping members.

17. The method of claim 13, further including the step of providing said mold cavity with a region adapted to mold a cap portion for said sharpened end of said needle or blade.

18. The method of claim 13, wherein said at least one cavity comprises a plurality of cavities and further including the step of simultaneously molding a plurality of lancet bodies.

19. The method of claim 13, further including the step of providing said cavity with a support for said bend.