Reuse protection for lancet system

• US 9,895,093 B2
• Filed: 09/26/2014
• Issued: 02/20/2018
• Est. Priority Date: 02/17/2009
• Status: Active Grant

• Current Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Original Assignee: Roche Diabetes Care Inc. (Roche Holding AG)
• Inventors: Forster, Richard, Gentsch, Susanne, Gorshoefer, Andreas, Keil, Michael, Weiss, Thomas, Wessel, Robert
• Primary Examiner(s): DANG, ANH TIEU
• Application Number:
  US14/497,991
• Publication Number:
  US 20150150496A1
• Time in Patent Office: 1,243 Days
• CPC Class Codes: A61B 5/1411 by percutaneous method, e.g. by lancet
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150412 Pointed piercing elements, e.g. needles, lancets for piercing the skin blade-like piercing elements A61B5/150442
• 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 5/150572 Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
• CPC Class Codes: A61B 5/150824 by visual feedback
• CPC Class Codes: A61B 5/15115 Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
• CPC Class Codes: A61B 5/15153 Multiple piercing elements stocked in a single compartment
• CPC Class Codes: A61B 5/15163 Characterized by propelling the piercing element in an axial direction relative to the disc
• CPC Class Codes: A61B 5/15176 Stocking means comprising cap, cover, sheath or protection for aseptic stocking
• CPC Class Codes: A61B 5/1518 Security or safety mechanism to be deactivated for forwarding next piercing element

Abstract

A lancet magazine for use in a lancing aid is described comprising a plurality of lancets each having a lancet body at the proximal end of the lancet and a lancet tip at the distal end of the lancet, where the proximal end of the lancet points in the direction of the proximal end of the housing of the lancet magazine and the distal end of the lancet is aligned in the direction of the distal end of the housing and the lancets in the unused state are completely surrounded by the housing. Furthermore, an extension unit is movably connected to the housing in such a manner that the housing can be extended by movement of the extension unit in the direction of the distal end of the housing such that the lancet is prevented from emerging from the lancet magazine.

Claims

1. An apparatus for securing lancets in a lancet magazine, the apparatus comprising:

a lancing aid having a drive element and an opening for receiving a lancet magazine; and

a lancet magazine removably receivable in the lancing aid and having a plurality of lancets, each lancet being movable to a removal position in the lancing aid, wherein the drive element can move a lancet in the removal position in a lancing operation to puncture a body part, and wherein the lancing aid comprises a securing element which directly contacts and prevents movement of lancets in the lancet magazine which are not positioned in the removal position and does not impede movement of the lancet in the removal position.

2. The apparatus of claim 1, wherein the securing element comprises a pin which penetrates the lancet magazine when the lancet magazine is received in the lancing aid.

3. The apparatus of claim 2, wherein the pin simultaneously contacts all lancets which are not positioned in the removal position.

4. The apparatus of claim 1, wherein each lancet has a lancet tip and a securing means comprising a plastic sheath around the lancet tip, which can be pierced when sufficient force is exerted on the lancet in the removal position by the lancing aid.

5. The apparatus of claim 1, wherein the lancets not in the removal position are clamped between the lancet magazine and the securing element when the lancet magazine is received in the lancing aid.

6. The apparatus of claim 1, wherein the lancets not in the removal position have a portion thereof positioned in a groove of the lancet magazine.