Disposable puncturing device and reusable handling device for a puncturing device
View Patent ↗A puncturing device includes a band-shaped lancet carrier carrying a plurality of lancets, a transport mechanism for positioning the lancets sequentially in a launch position by moving the band-shaped lancet carrier, a lancet drive for a puncturing movement, the lancet drive comprising an energy storage, a trigger element, and a housing which includes at least two housing parts and encloses the band-shaped lancet carrier and the lancet drive, the housing having an opening against which a body part is pressed for puncturing, wherein the transport mechanism includes at least one part arranged in a fixed position with respect to the housing. The puncturing device is adapted for disposable use in that the housing parts were are irreversibly connected upon enclosing the band-shaped lancet carrier, thereby sealing the band-shaped lancet carrier irremovably in the housing. A reusable handling device can also be used with the puncturing device.
1. A puncturing device comprising:
a band-shaped lancet carrier carrying a plurality of lancets;
a transport mechanism for positioning the lancets sequentially in a launch position by moving the band-shaped lancet carrier;
a lancet drive for accelerating one of the lancets from the launch position for a puncturing movement, the lancet drive comprising an energy storage for providing energy for the acceleration of the lancet, wherein the energy storage includes a drive spring which is coupled to the transport mechanism in such a way that transportation of one of the lancets to the launch position causes a tensioning of the drive spring;
a trigger element for triggering the lancet drive to release energy from the energy storage to accelerate the lancet for the puncturing movement; and
a housing which comprises at least two housing parts and encloses the band-shaped lancet carrier and the lancet drive, the housing having an opening against which a body part is pressed for puncturing by the lancet positioned in the launch position, wherein
the transport mechanism comprises at least one part which is arranged in a fixed position with respect to the housing, and wherein
the puncturing device is adapted for disposable use in that an irreversible connection between the housing parts is formed and the band-shaped lancet carrier is irremovably enclosed within the housing parts upon assembly of the puncturing device.
2. The device of claim 1 , wherein the lancet carrier carries at least 100 lancets.
3. The device of claim 2 , wherein the lancet carrier carries at least 200 lancets.
4. The device of claim 1 , wherein the transport mechanism comprises a drive wheel which is coupled to a reel for wrapping used sections of the lancet carrier carrying used lancets.
5. The device of claim 4 , wherein the drive wheel protrudes through a second opening of the housing.
6. The device of claim 1 , wherein the lancet drive comprises a spring-driven rotor and a conrod for transforming a rotary motion of the rotor into a linear puncturing and retraction motion.
7. The device of claim 1 , wherein the lancet carrier comprises mechanical position markers which interact with a position sensor of the transport mechanism to stop a positioning movement of the lancet carrier when one of the lancets has reached the launch position.
8. The device of claim 1 , wherein the breadth of the lancet carrier is equal to or less than 8 mm.
9. The device of claim 1 , wherein the lancet carrier is arranged with two quarter twists between which the launch position is located.
10. The device of claim 1 , further comprising a covering tape which covers the opening of the housing against which a body part is pressed for puncturing by one of the lancets.
11. The device of claim 10 , wherein the covering tape is moved by the transport mechanism together with the lancet carrier.
12. The device of claim 1 , wherein the device has a thickness of 14 mm or less.
13. The device of claim 1 , wherein the device has a volume of less than 20 cm 3 .
14. The device of claim 13 , wherein the device has a volume of less than 18 cm 3 .
15. The device of claim 1 , wherein the opening of the housing against which a body part is pressed for puncturing by one of the lancets has a distance from edges of the housing of 10 mm to 20 mm.
16. The device of claim 1 , wherein the transport mechanism comprises at least one part which is arranged inside the housing.
17. An assembly comprising a puncturing device and a reusable handling device, wherein
the puncturing device comprises:
a band-shaped lancet carrier carrying a plurality of lancets;
a transport mechanism for positioning the lancets sequentially in a launch position by moving the band-shaped lancet carrier;
a lancet drive for accelerating one of the lancets from the launch position for a puncturing movement, the lancet drive comprising an energy storage for providing energy for the acceleration of the lancet;
a trigger element for triggering the lancet drive to release energy from the energy storage to accelerate the lancet for the puncturing movement; and
a housing which comprises at least two housing parts and encloses the band-shaped lancet carrier and the lancet drive, the housing having an opening against which a body part is pressed for puncturing by the lancet positioned in the launch position, wherein
the transport mechanism comprises at least one part which is arranged in a fixed position with respect to the housing, and wherein
the puncturing device is adapted for disposable use in that an irreversible connection between the housing parts is formed and the band-shaped lancet carrier is irremovably enclosed within the housing parts upon assembly of the puncturing device,
and wherein the reusable handling device comprises:
a compartment for holding the puncturing device; and
a control mechanism comprising at least one coupling element configured for coupling the control mechanism with the trigger element and/or the transport mechanism held in the compartment such that activation of the control mechanism results in activation of the trigger element and/or the transport mechanism.
18. The assembly of claim 17 wherein the coupling element is configured for coupling the control mechanism with the transport mechanism, wherein the transport mechanism comprises a drive wheel, and wherein the drive wheel protrudes through a second opening of the housing.