Lancet device with optionally reusable lancets stored in a magazine
First Claim
Patent Images
1. A lancet device for producing a puncture wound, comprising:
- a magazine holder for holding a lancet magazine having several lancets;
a lancet drive with a drive spring, a tensioning device for tensioning the drive spring and a connecting element adapted to contact a lancet arranged in the lancet magazine and move the lancet in a puncturing movement to produce a puncture wound;
a magazine advancing mechanism configured to advance the lancet magazine to successively bring the lancets stored therein into a position in which they can be contacted by the connecting element and moved by the connecting element in a puncturing movement, the magazine advancing mechanism having active and passive operating states;
a selection element with which the magazine advancing mechanism can be selectively shifted into the active or passive operating state, the magazine advancing mechanism remaining in the selected operating state until the selection element is shifted to the other respective operating state;
wherein, in the active operating state the magazine advancing mechanism automatically advances the lancet magazine before or after a puncturing movement of a lancet and causes an unused lancet of the lancet magazine to be brought into contact with the connecting element in the subsequent puncturing movement;
further wherein, in the passive operating state the magazine advancing mechanism does not advance the lancet magazine before or after a puncturing movement of a lancet, whereby, in the subsequent puncturing movement the same lancet used in the previous puncturing movement is again brought into contact with the connecting element of the lancet drive.
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Accused Products
Abstract
An inventive lancet device for producing a puncture wound, in particular for collecting a sample of a body fluid which has a magazine holder for a lancet magazine containing a plurality of lancets. The lancet device can be alternatively operated such that either a new lancet is used for each puncture process by automatically advancing the lancet magazine stepwise or the automatic stepwise advance of the lancet magazine can be suppressed or deactivated so that, if desired, several punctures can be carried out with the last used lancet before an unused lancet is used at a desired time.
23 Citations
23 Claims
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1. A lancet device for producing a puncture wound, comprising:
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a magazine holder for holding a lancet magazine having several lancets; a lancet drive with a drive spring, a tensioning device for tensioning the drive spring and a connecting element adapted to contact a lancet arranged in the lancet magazine and move the lancet in a puncturing movement to produce a puncture wound; a magazine advancing mechanism configured to advance the lancet magazine to successively bring the lancets stored therein into a position in which they can be contacted by the connecting element and moved by the connecting element in a puncturing movement, the magazine advancing mechanism having active and passive operating states; a selection element with which the magazine advancing mechanism can be selectively shifted into the active or passive operating state, the magazine advancing mechanism remaining in the selected operating state until the selection element is shifted to the other respective operating state; wherein, in the active operating state the magazine advancing mechanism automatically advances the lancet magazine before or after a puncturing movement of a lancet and causes an unused lancet of the lancet magazine to be brought into contact with the connecting element in the subsequent puncturing movement; further wherein, in the passive operating state the magazine advancing mechanism does not advance the lancet magazine before or after a puncturing movement of a lancet, whereby, in the subsequent puncturing movement the same lancet used in the previous puncturing movement is again brought into contact with the connecting element of the lancet drive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lancet device for producing a puncture wound, comprising:
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a magazine holder configured to hold a lancet magazine having several lancets; a lancet drive comprising a drive spring, a tensioning device for tensioning the drive spring and a connecting element which contacts and moves a lancet located in the lancet magazine in a puncture movement; and a magazine advancing mechanism for advancing the lancet magazine to successively bring the lancets stored therein into a position in which they can be contacted by the connecting element and moved by the connecting element in a puncturing movement, the magazine advancing mechanism having an active state in which the lancet magazine is automatically advanced before or after a puncture movement and a passive state in which the magazine advancing mechanism is deactivated to allow multiple puncture movements with the same lancet without advancing the lancet magazine, wherein in the active state, the magazine advancing mechanism is mechanically coupled to a drive of the device and in the passive state the magazine advancing mechanism is decoupled from the drive. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification