PRICKING DEVICE FOR TAKING BLOOD
First Claim
1. A pricking device for withdrawing blood, comprising:
- a contact element configured for contacting an extraction surface;
an actuating element configured for manually actuating the pricking device;
a pricking element which is displaceable relative to the contact element in a direction substantially perpendicular to the extraction surface, the pricking element being arranged in the contact element such that a defined pricking depth is obtained during the pricking procedure, the pricking element being positioned within the contact element before the pricking procedure is initiated;
a return spring configured to automatically retract the pricking element into the contact element after the pricking procedure has been completed; and
a locking mechanism configured to lock the pricking device after completion of a single pricking procedure, the locking mechanism comprising a bolt defined by one of the contact element and the actuating element and a switch defined by the other of the contact element and the actuating element, the bolt configured to slide along a first guide surface of the switch when the pricking procedure is initiated and then slide along a second guide surface of the switch when the pricking element is retracted by the return spring after completion of the pricking procedure.
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Accused Products
Abstract
The present invention provides a pricking device for taking blood comprising a contact element for being placed into contact with an extraction surface, an actuating element for manual actuation of the pricking device, a pricking element which is used to perforate the extraction surface, the pricking element being arranged in the contact element in such a way that it does not protrude from the contact element before the pricking procedure is initiated, and in such a way that a defined pricking depth is obtained during the pricking procedure. The pricking device further includes a return spring for automatically retracting the pricking element into the contact element after a pricking procedure has been completed and a locking mechanism for locking the pricking device after completion of a single pricking procedure and thereby preventing additional use of the pricking device.
134 Citations
68 Claims
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1. A pricking device for withdrawing blood, comprising:
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a contact element configured for contacting an extraction surface;
an actuating element configured for manually actuating the pricking device;
a pricking element which is displaceable relative to the contact element in a direction substantially perpendicular to the extraction surface, the pricking element being arranged in the contact element such that a defined pricking depth is obtained during the pricking procedure, the pricking element being positioned within the contact element before the pricking procedure is initiated;
a return spring configured to automatically retract the pricking element into the contact element after the pricking procedure has been completed; and
a locking mechanism configured to lock the pricking device after completion of a single pricking procedure, the locking mechanism comprising a bolt defined by one of the contact element and the actuating element and a switch defined by the other of the contact element and the actuating element, the bolt configured to slide along a first guide surface of the switch when the pricking procedure is initiated and then slide along a second guide surface of the switch when the pricking element is retracted by the return spring after completion of the pricking procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A pricking device for withdrawing blood, comprising:
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a contact element configured for contact with an extraction surface;
a pricking element for perforating the extraction surface; and
an actuating element configured for manually actuating the pricking device, the actuating element comprising a lever configured to turn about a hinge pin to move the pricking element; and
a holding element which secures the lever before actuation of the pricking device, wherein the lever requires a release force applied thereto to disengage the lever from the holding element. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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- 46. A method for producing a pricking device of the type comprising a contact element for contacting an extraction surface, an actuating element for actuating the pricking device, a displaceable pricking element, and a return spring configured to automatically retract the pricking element into the contact element after the pricking procedure has been completed, the method comprising forming the contact element, the actuating element, the pricking element, the return spring and the locking mechanism from a metal strip by micro-punching, laser cutting, etching, or a combination thereof.
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53. A pricking device for withdrawing blood, comprising:
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a contact element configured for contacting an extraction surface;
an actuating element configured for manually actuating the pricking device;
a pricking element which is displaceable relative to the contact element;
a return spring configured to automatically retract the pricking element into the contact element after the pricking procedure has been completed; and
wherein the contact element, the actuating element, the pricking element, and the return spring are formed from a single metal strip having a severed holding element that separates the contact element from the actuating element. - View Dependent Claims (54, 55, 56, 57, 58, 59)
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60. A pricking device for withdrawing blood, comprising:
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a contact element configured for contacting an extraction surface;
an actuating element configured for manually actuating the pricking device;
a pricking element which is displaceable relative to the contact element;
a return spring configured to automatically retract the pricking element into the contact element after the pricking procedure has been completed; and
the contact element, the actuating element, the pricking element, and the return spring together forming an inner layer having opposite sides, each side having two films thereon that are displaceable relative to one another when the pricking device is actuated. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68)
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Specification