Puncturing device

• US 6,206,901 B1
• Filed: 09/29/1999
• Issued: 03/27/2001
• Est. Priority Date: 09/06/1999
• Status: Expired due to Term

• Current Assignee: HTL Strefa Spolka Z OO
• Original Assignee: P.Z. "Htl" Spolka Akcyjna
• Inventors: Wyszogrodzki, Wojciech, Rutynowski, Wlodzimierz
• Primary Examiner(s): Thaler, Michael H.
• Application Number:
  US09/408,119
• Time in Patent Office: 545 Days
• Field of Search: 606/182, 606/183, 604/136, 604/137
• US Class Current: 606/182
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150175 Adjustment of penetration depth
• CPC Class Codes: A61B 5/150267 Modular design or construction, i.e. subunits are assembled separately before being joined together or the device comprises interchangeable or detachable modules
• 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 5/15113 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 5/15186 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 5/15194 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 puncturing device according to the invention comprises the puncturing unit (2) with an exchangeable puncturing insert (7), a driving unit (1) connected with the puncturing unit (2) comprising a ram (12) placed inside the body (9) of the driving unit (1), and at the ram (12) between the first end (13) of the ram (12) pointing towards puncturing insert (7) and the body (9) a driving spring (14) is placed, the second end (17) of the ram (12) is sustained in the body (9), and on the driving unit (1) a triggering unit (3) comprising a button (18) is placed with an inner projection (19) pointing towards the second end (17) of the ram (12).

Claims

1. A puncturing device, comprising:

a puncturing unit including an exchangeable puncturing insert;

a driving unit, connected to the puncturing unit, comprising a body, a ram disposed within the body, the ram having a first end and a second end, the first end of the ram pointing towards the puncturing insert and the second end of the ram being sustained in the body, and a driving spring surrounding the ram and disposed between the first end of the ram and the second end of the ram; and

a triggering unit, mounted on the driving unit, comprising a button and an inner projection pointing towards the second end of the ram,

wherein the puncturing unit, the driving unit and the triggering unit are and remain aligned along a common longitudinal axis, and

wherein a longitudinal axis of the ram, when the driving spring is loaded, is angled away from said common longitudinal axis and when the driving spring is unloaded, the longitudinal axis of the ram is substantially aligned and coextensive with said common axis.

2. The puncturing device of claim 1, wherein the puncturing unit comprises a housing, an opening disposed at a bottom of said housing, and a first return spring.

3. The puncturing device of claim 2, wherein the exchangeable puncturing insert is disposed inside the housing of the puncturing device.

4. The puncturing device of claim 1, wherein the body of the driving unit comprises an inner narrowing, and wherein said narrowing is a base for the driving spring.

5. The puncturing device of claim 1, wherein the body of the driving unit comprises a seat in which the second end of the ram is placed.

6. The puncturing device of claim 1, wherein the triggering unit comprises a second return spring disposed between an upper end of the driving unit and a bottom of the button.

7. The puncturing device of claim 1, wherein the first end of the ram extends beyond a bottom end of the driving unit when the driving spring is loaded or unloaded.

8. The puncturing device of claim 1, wherein a top end of the driving unit is closed with a directing cap.

9. A puncturing device, comprising:

a puncturing unit including an exchangeable puncturing insert;

a driving unit, connected to the puncturing unit, comprising (i) a body, (ii) a ram having a first end and a second end disposed within the body, wherein in a loaded position a longitudinal axis of the ram is angled away from a longitudinal axis of the driving unit and in an unloaded position the longitudinal axis of the ram is substantially aligned with the longitudinal axis of the driving unit, and (iii) a driving spring surrounding the ram and disposed between the first end of the ram and the second end of the ram; and

a triggering unit, mounted on the driving unit, comprising a button and an inner projection pointing towards the second end of the ram, the inner projection pushing the second end of the ram when the button is depressed and the ram is in the loaded position, and

wherein a longitudinal axis of the triggering unit is aligned and coextensive with the longitudinal axis of driving unit.