Compact lancing apparatus

• US 20070100364A1
• Filed: 10/28/2005
• Published: 05/03/2007
• Est. Priority Date: 10/28/2005
• Status: Abandoned Application

• Current Assignee: LifeScan Scotland Limited (Johnson & Johnson)
• Original Assignee: LifeScan Scotland Limited (Johnson & Johnson)
• Inventors: Sansom, Gordon
• Application Number:
  US11/262,166
• Publication Number:
  US 20070100364A1
• Time in Patent Office: Days
• US Class Current: 606/181
• CPC Class Codes: A61B 2562/0295 Strip shaped analyte sensors for apparatus classified in A61B5/145 or A61B5/157
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150198 Depth adjustment mechanism at the proximal end of the carrier of the piercing element
• CPC Class Codes: A61B 5/150259 Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
• CPC Class Codes: A61B 5/150358 Strips for collecting blood, e.g. absorbent optical reagent test strips G01N21/8483; chemical reagent test strips G01N33/4875, G01N33/52
• CPC Class Codes: A61B 5/150442 Blade-like piercing elements, e.g. blades, cutters, knives, for cutting the skin
• CPC Class Codes: A61B 5/15113 Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
• CPC Class Codes: A61B 5/15117 comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• CPC Class Codes: A61B 5/15128 comprising 2D- or 3D-shaped elements, e.g. cams, curved guide rails or threads comprising tooth-shaped elements A61B5/15132
• CPC Class Codes: A61B 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit
• CPC Class Codes: A61B 5/15194 fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin
• CPC Class Codes: A61B 5/157 Devices characterised by integrated means for measuring characteristics of blood

Abstract

A lancing apparatus includes an inner housing, a firing mechanism, a lancing mechanism and a linkage arm. The firing mechanism is configured for producing a firing force in a first direction. The lancing mechanism is configured for delivering a lancing force in a second direction with the second direction being toward a target site and in opposition to the first direction. The linkage arm is pivotably attached to the housing and has first and second ends engaged to the firing and lancing mechanisms, respectively. During use, pivoting of the linkage arm converts the firing force in the first direction into the lancing force in the opposing second direction.

Claims

1. A lancing apparatus for lancing a target site, the lancing apparatus comprising:

an inner housing;

a firing mechanism configured for producing, during use, a firing force in a first direction;

a lancing mechanism configured for delivering a lancing force in a second direction during use, the second direction being toward the target site and essentially in opposition to the first direction; and

a linkage arm pivotably attached to the inner housing, the linkage arm including;

a first end engaged with the firing mechanism; and

a second end engaged the lancing mechanism, wherein the linkage arm is configured to convert the firing force in the first direction into the lancing force in the second direction.

2. The lancing apparatus of claim 1, wherein the second direction is in opposition to the first direction within a range of +/−

15 degrees about 180 degrees.

3. The lancing apparatus of claim 2, wherein the second direction is in essentially 180 degrees opposition to the first direction.

4. The lancing apparatus of claim 1 further including a priming mechanism.

5. The lancing apparatus of claim 1, wherein the lancing apparatus is configured to lance the target site with an integrated medical device engaged with a connector.

6. The lancing apparatus of claim 1, wherein the inner housing includes at least one guide rail for guiding the connector.

7. The lancing apparatus of claim 1, wherein the firing mechanism includes a firing spring for producing the firing force.

8. The lancing apparatus of claim 6, wherein the firing spring has a maximum spring force during use in the range of about 3 Newton to about 8 N.

9. The lancing apparatus of claim 1, wherein the lancing mechanism includes a retraction spring.

10. The lancing apparatus of claim 1 wherein the lancing mechanism includes a depth adjustor.

11. The lancing apparatus of claim 1, wherein momentum in the second direction associated with the lancing force is essentially equal to momentum in the first direction associated with the firing force.