Patient's skin puncturing device
First Claim
1. A 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 an upper portion of the body,wherein the needle assembly has in a lower position a piercing needle surrounded by a removable sheath having an interlock plate portion and an exterior portion,wherein the needle extends in a longitudinal direction,wherein the push button has in an upper portion a press surface,wherein between the body and the needle assembly a return spring is placed,wherein the push button has an interlock arm extending in the longitudinal direction,wherein, before removal of the sheath;
the interlock plate portion is disposed inside the body and is between and abutting the interlock arm and an inside surface of a lower portion of the body, thereby limiting movement of the push button in the longitudinal direction relative to the body and protecting against pressing in or pulling out the needle before removing the sheath, andthe exterior portion is disposed outside the body,wherein, after removal of the sheath, the interlock plate portion and the exterior portion are outside the body and the push button is movable in the longitudinal direction relative to the body.
1 Assignment
0 Petitions
Accused Products
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).
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Citations
21 Claims
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1. A skin puncturing device particularly for collecting blood samples for diagnostic purposes comprising:
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a body and placed therein a needle assembly and a push button located in an upper portion of the body, wherein the needle assembly has in a lower position a piercing needle surrounded by a removable sheath having an interlock plate portion and an exterior portion, wherein the needle extends in a longitudinal direction, wherein the push button has in an upper portion a press surface, wherein between the body and the needle assembly a return spring is placed, wherein the push button has an interlock arm extending in the longitudinal direction, wherein, before removal of the sheath; the interlock plate portion is disposed inside the body and is between and abutting the interlock arm and an inside surface of a lower portion of the body, thereby limiting movement of the push button in the longitudinal direction relative to the body and protecting against pressing in or pulling out the needle before removing the sheath, and the exterior portion is disposed outside the body, wherein, after removal of the sheath, the interlock plate portion and the exterior portion are outside the body and the push button is movable in the longitudinal direction relative to the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification