PATIENT'S SKIN PUNCTURING DEVICE

• US 20090118754A1
• Filed: 06/22/2006
• Published: 05/07/2009
• Est. Priority Date: 06/22/2005
• Status: Active Grant

• Current Assignee: HTL-STREFA S.A. (Medical Technology Solutions LLC)
• Original Assignee: HTL-STREFA S.A. (Medical Technology Solutions LLC)
• Inventors: Urban, Piotr, Wyszogrodzki, Wojciech, Nowicki, Adam, Jankowski, Andrzej
• Granted Patent: US 7,988,703 B2
• 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 5/150412 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 5/150549 Protectors removed by rotational movement, e.g. torsion or screwing
• 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 5/150717 manually removed
• CPC Class Codes: A61B 5/150908 by disconnecting components, e.g. breaking or rupturing of connected parts, e.g. piston and rod
• 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 5/15144 comprising driving means, e.g. a spring, for retracting the piercing unit into the housing

Abstract

The device comprises a body (2) and placed therein a needle assembly (1) and a push button (3) located in the upper portion of the body (2), whereas the needle assembly (1) has in its lower portion a sheathed piercing needle (5), and the push button (3) has in its upper portion a press surface, and between the body (2) and the needle assembly (1) a return spring (27) is placed. The push button (3) is coupled with the needle assembly (1) by means of abutting surface elements (15, 44), whereas during the movement of the push button (3) and after resting the needle assembly (1) on the element (20) of the body (2) and after performing the full-depth piercing, one of the abutting surface elements (15, 44) bends, releasing the needle assembly (1) from the thrust of the push button (3), whereupon the needle assembly (1) retracts to the inside of the body by means of the return spring (27).

Claims

1. The patient'"'"'s skin puncturing device, particularly for collecting blood samples for diagnostic purposes comprising a body and placed therein a needle assembly and a push button located in the upper portion of the body, whereas the needle assembly has in its lower portion a sheathed piercing needle, and the push button has in its upper portion a press surface, and between the body and the needle assembly a return spring is placed, characterized in that the push button (3) is coupled with the needle assembly (1) by means of abutting surface elements (15, 44), whereas during the movement of the push button (3) and after resting the needle assembly (1) on the element (20) of the body (2) and after performing the full-depth piercing, one of the abutting surface elements (15, 44) bends, releasing the needle assembly (1) from the thrust of the push button (3), whereupon the needle assembly (1) retracts to the inside of the body (2) by means of the return spring (27).

2. The patient'"'"'s skin puncturing device, particularly for collecting blood samples for diagnostic purposes comprising a body and placed therein a needle assembly and a push button located in the upper portion of the body, whereas the needle assembly has in its lower portion a sheathed piercing needle, and the push button has in its upper portion a press surface, and between the body and the needle assembly a return spring is placed, characterized in that the push button (3) is coupled with the needle assembly (1) by means of abutting surface elements (15, 44), whereas during the movement of the push button (3) and after resting the needle assembly (1) on the element (20) of the body (2) and after performing the full-depth piercing, one of the abutting surface elements (15, 44) breaks away, releasing the needle assembly (1) from the thrust of the push button (3), whereupon the needle assembly (1) retracts to the inside of the body (2) by means of the return spring (27).

3. The patient'"'"'s skin puncturing device, particularly for collecting blood samples for diagnostic purposes comprising a body and placed therein a needle assembly and a push button located in the upper portion of the body, whereas the needle assembly has in its lower portion a sheathed piercing needle, and the push button has in its upper portion a press surface, and between the body and the needle assembly a return spring is placed, characterized in that the push button (3) has interlocking arms (41), which abut against the elements of the sheath (6) of the needle (5) rested on the elements of the body (2) for protecting against pressing in or pulling out the needle (5) before removing the sheath (6).

4. The patient'"'"'s skin puncturing device, particularly for collecting blood samples for diagnostic purposes comprising a body and placed therein a needle assembly, and a push button located in the upper portion of the body, whereas the needle assembly has in its lower portion a sheathed piercing needle, and the push button has on its upper portion a press surface, and between the body and the needle assembly a return spring is placed, characterized in that the return spring (27) consists of plastic flat springing beams, preferably “

L”

or “

U”

shaped, whereas at least one end the return spring (27) is connected with the body (2).