Puncturing Device

• US 20070135828A1
• Filed: 12/01/2003
• Published: 06/14/2007
• Est. Priority Date: 07/29/2003
• Status: Active Grant

• Current Assignee: HTL-STREFA S.A. (Medical Technology Solutions LLC)
• Original Assignee: HTL-STREFA S.A. (Medical Technology Solutions LLC)
• Inventors: Rutynowski, Wlodzimierz
• Granted Patent: US 7,842,059 B2
• Time in Patent Office: Days
• US Class Current: 606/181
• CPC Class Codes: A61B 5/150022 for capillary blood or interstitial fluid
• CPC Class Codes: A61B 5/150435 Specific design of proximal end
• CPC Class Codes: A61B 5/150541 Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
• CPC Class Codes: A61B 5/150618 Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
• CPC Class Codes: A61B 5/150923 by means for destroying components or parts, e.g. by cutting or piercing
• CPC Class Codes: A61B 5/15111 Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
• 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 5/15142 Devices intended for single use, i.e. disposable
• CPC Class Codes: A61B 5/15144 comprising driving means, e.g. a spring, for retracting the piercing unit into the housing

Abstract

The device is built of a housing (1), wherein a push button (3) is positioned, and the puncturing needle (5), wherein the push button (3) has arms (7, 8) to guide the push button (3) inside the housing (1), and a driving spring (11), one end of which is linked to the push button (3), and the other end drives the puncturing needle (5), and the puncturing needle (5) has breakable wings (17, 18), which rest against the breaking edge (19) of the housing (1). The device has moreover two return springs (13, 14), each of which is connected to one of the arms (7, 8) of the push button (3), and two side juts (15, 16), each of which is positioned between one of the return springs (13, 14) and the other end of the driving spring (11).

Claims

1. Puncturing device built of a housing, wherein a push button and a puncturing needle is disposed, wherein the push button has arms to guide the push button inside the housing, and a driving spring, one end of which is linked to the push button, and the other end drives the puncturing needle, and the puncturing needle has breakable wings, which rest against the breaking edge of the housing, characterised by that it comprises at least one return spring connected to the arms (7, 8) of the push button (3), while the puncturing needle (5) has at least one side jut, which is positioned inside the device between the return spring and the other end of the driving spring (11).

2. A device according to the claim 1 characterised by that it has two return springs (13, 14), each of which is connected to one arm (7, 8) of the push button (3), and has two side juts (15, 16), each of which is positioned inside the device between one of the return springs (13, 14) and the other end of the driving spring (11).

3. A device according to the claim 2, wherein the return springs (13, 14) are connected approximately perpendicularly to the lower portions of the arms (7, 8) of the push button (3).

4. A device according to the claim 1, wherein the first end of the driving spring (11) is connected with the push button face (6).

5. A device according to the claim 1, wherein the other end of the driving spring (11) ends with a pusher (12) for the puncturing needle (5).

6. A device according to the claim 1, wherein the driving spring (11) is shaped like the letter “

S”

.

7. A device according to the claim 1, wherein the return springs (13, 14) are flat springs.