Device for causing a pinprick to obtain and to test a drop of blood

• US 4,469,110 A
• Filed: 06/17/1982
• Issued: 09/04/1984
• Est. Priority Date: 06/25/1981
• Status: Expired due to Fees

• Current Assignee: Gerard J. Slama
• Original Assignee: Gerard J. Slama
• Inventors: Slama, Gerard J.
• Primary Examiner(s): Cohen, Lee S.
• Assistant Examiner(s): Sykes, Angela D.
• Application Number:
  US06/389,393
• Time in Patent Office: 810 Days
• Field of Search: 128/314-315, 128/329, 128/771, 128/743-744, 128/636-637, 128/760, 128/763, 128/765, 128/770
• US Class Current: 600/583
• CPC Class Codes: A61B 17/32093 for skin incisions
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/15019 Depth adjustment mechanism using movable stops located inside the piercing device housing and limiting the travel of the drive mechanism mechanisms using distal end caps A61B5/150183, mechanisms at the piercing element carrier proximal end A61B5/150198
• 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 5/1519 comprising driving means, e.g. a spring, for propelling the piercing unit

Abstract

For causing a pinprick on a user'"'"'s skin to obtain a drop of blood, a movable holder which holds a pin, actuated by a spring, is tensioned.

In the normal, inactive position of the spring which is shown in the drawing, the pin is on this side of the edge of the end, and there exists a distance X between a radial shaft having a control button and a stop.

When the mechanism is triggered, the spring suddenly pushes the holder, and the shaft passes the normal position to reach the stop which limits its course in such a way that the pin projects, attaining a predetermined extreme position and returning automatically to its protected position.

Claims

1. A device for causing a pin prick to obtain and test a drop of blood comprising an elongated body in the general shape of pen and having an open end, pricking means within said body for causing a pin prick from said open end of said body and drawing a drop of blood, a removable cap closing said open end of said body and a defining a receptacle within said cap, said receptacle having an opening therein and being adapted to retain therein a strip of the type for receiving by capillary action a drop of blood, a removable tip closing said receptacle and comprising a housing communicating with said receptacle adapted to receive and retain a desiccant material.

2. A device according to claim 1 wherein said body includes a housing containing a removable colorimetric scale.

3. A device according to claim 2 wherein said body housing is transparent.

4. A device as recited in claim 4, wherein a strip for receiving by capillary action a drop of blood is contained within said receptacle and a desiccant material is contained within the housing defined by said tip.