Lancing Device For Minimizing Pain

• US 20100145377A1
• Filed: 12/04/2008
• Published: 06/10/2010
• Est. Priority Date: 12/04/2008
• Status: Abandoned Application

• Current Assignee: Venture Corporation Limited
• Original Assignee: Venture Corporation Limited
• Inventors: LAI, Siew Kong, Yeo, Chow Kian
• Application Number:
  US12/327,817
• Publication Number:
  US 20100145377A1
• Time in Patent Office: Days
• US Class Current: 606/182
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150152 by an adequate mechanical impact on the puncturing location
• 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 5/150503 Single-ended needles hollow piercing element tip design A61B5/150396, needle sets for catheters A61M25/06, needles for bringing media into the body A61M5/32
• 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 5/1513 comprising linear sliding guides comprising tooth-shaped elements A61B5/15132
• CPC Class Codes: A61B 5/15132 comprising tooth-shaped elements, e.g. toothed wheel or rack and pinion
• 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: 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

Abstract

The present invention provides a lancing device designed for minimizing pain to the user, comprising a probe with cam profile responsible for controlling the lancet speed such that the lancet enters the skin relatively fast, decelerates smoothly and gradually to zero velocity at maximum depth of penetration and retracts slowly and controllably. The housing of the lancet comprises of leaf springs and set of guides for minimizing or eliminating pitching or vibration of the lancet during lancing, hence reducing the pain experienced by the user. The lancing device is further equipped with a gear-damper system for minimizing or eliminating noise produced during lancing process.

Claims

1. A lancing device, comprising:

a lancet;

a housing comprising guides for minimizing pitching of the lancet during lancing;

a probe with cam profile for controlling the speed of the lancet such that the lancet enters the skin quickly, decelerates at standstill at maximum depth of penetration and retracts controllably;

a gear-damper system for minimizing noise produced during lancing process; and

a priming system.

2. The lancing device as claimed in claim 1, wherein said guides comprise of v-shaped guides and profile guides, said v-shaped guides and profile guides are used together with leaf springs for minimizing or eliminating probe movement in x- and y-axis during lancing process.

3. The lancing device as claimed in claim 1, wherein said probe with cam profile comprises of profile slides having its rotation centre coinciding with the lancet'"'"'s rotation centre.

4. The lancing device as claimed in claim 1, wherein said probe with cam profile comprises of slotted guides for limiting rotational movement of the probe during lancing process.

5. The lancing device as claimed in claim 1, wherein said priming system comprises of a torsion spring, a probe actuator, a priming gear, a rack, a priming button, a compression spring and a fire button.

6. The lancing device as claimed in claim 5, wherein said probe actuator comprises of an integrated damper and a cam follower.