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1. WO2015087064 - LANCETTES DE PIQÛRE DE LA PEAU

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS:

1. A method of manufacturing a skin pricking lancet comprising:

thermoforming a plastic component;

locating the thermoformed component and, optionally, one or more further plastic components around a lancet mechanism; and

joining the located component(s) to form a hermetically sealed enclosure surrounding the lancet mechanism,

the component(s) being formed and joined to provide a housing that structurally supports the lancet mechanism during use, and a cap breakable from the housing to facilitate firing of the lancet mechanism.

2. A method of manufacturing a skin pricking lancet according to claim 1 and comprising thermoforming said one or more further components.

3 A method of manufacturing a skin pricking lancet according to claim 1 or 2 and comprising joining the located component(s) together by heat sealing abutting peripheral edges of the component(s).

4. A method of manufacturing a skin pricking lancet according to any one of the preceding claim, wherein the thermoformed plastic has a thickness of between 0.4 and 1.5mm.

5. A method of manufacturing a skin pricking lancet according any one of the preceding claims and comprising creating a score around the enclosure at a junction between the housing and the cap in order to facilitate breaking of the cap from the housing.

6. A method of manufacturing a skin pricking lancet according to any one of the preceding claims and comprising irradiating the enclosure in order to sterilise the interior of the enclosure including the lancet mechanism.

7. A method of manufacturing a skin pricking lancet according to any one of the preceding claims, wherein the or each thermoformed component forms both a part of the cap and a part of the housing.

8. A method of manufacturing a skin pricking lancet according to any one of the preceding claims and comprising forming a narrowing of the enclosure at the junction between the housing and the cap.

9. A skin pricking lancet comprising a lancet mechanism and an enclosure containing the lancet mechanism, the enclosure comprising one or more plastic components hermetically sealed together, the or at least one plastic component being formed by thermoforming, the enclosure defining a housing and cap such that permanent removal of the cap from the housing can be achieved by breaking the cap from the housing.

10. A skin pricking lancet according to claim 9 and comprising a plurality of plastic components all of which are formed by thermoforming.

11. A skin pricking lancet according to claim 10, wherein said plurality of plastic components comprise two thermoformed plastic components of substantially identical configuration, and the seal between the components lies substantially in a plane that is parallel to a firing axis of the lancet mechanism.

12. A skin pricking apparatus according to any one of claims 9 to 11, wherein said enclosure comprises a relatively narrow neck region between the housing and the cap to facilitate breaking of the cap from the housing.

13. A skin pricking lancet according to any one of claims 9 to 12 and comprising a score line substantially around a junction between the cap and the housing to facilitate breaking of the cap from the housing.

14. A skin pricking lancet according to any one of claims 9 to 13, wherein the hermetic seal is a heat formed seal.

15. A skin pricking lancet according to any one of claim 9 to 14, wherein the thermoformed plastic has a thickness of between 0.4 and 1.5mm.

16. A skin pricking lancet according to any one of claim 9 to 15 and comprising a narrowing of the enclosure at the junction between the housing and the cap.

17. A skin pricking lancet comprising a housing defining an opening in a proximal region thereof, and a lancet mechanism supported substantially within the housing, the lancet mechanism comprising:

a needle;

a drive spring for driving the needle proximally through said opening along a drive axis;

a trigger configured in use to be pressed against a user's skin to move the trigger along said drive axis from an extended position to a retracted position in order to release the drive spring; and

one or more features cooperating with said trigger to lock the trigger in said retraced position following movement of the trigger to that retracted position.

18. A skin pricking apparatus according to claim 17 and comprising a frame located within said housing, said feature or features being provided by the frame.

19. A skin pricking apparatus according to claim 17 or 18, wherein said frame has a substantially "U" shaped cross-section, the bite of the frame being located at a distal end of the housing.

20. A skin pricking apparatus according to claim 17, the feature or features being provided on an inner surface of the housing.

21. A skin pricking lancet according to any one of claims 17 to 20, the trigger being engaged with the drive spring such that movement of the trigger from said extended position to said retracted position cocks the drive spring prior to releasing it.

22. A skin pricking lancet according to any one of claims 17 to 21, the trigger extending through the opening in the housing and defining a further opening through which a tip of the needle can pass upon firing,

23. A skin pricking lancet according to claim 22, further comprising a return spring, acting between the trigger and a needle carrier within which the needle is mounted,

arranged to withdraw the tip of the needle through the further opening in the trigger after firing.

24. A skin pricking lancet according to any one of claims 17 to 23, wherein the trigger comprises one or more outwardly biased legs arranged to engage with a needle carrier within which the needle is mounted, when the trigger is in said extended position and prior to the trigger reaching said retracted position, said feature(s) being configured to allow the biased leg(s) to expand radially upon the trigger reaching said retracted position, thereby locking the trigger in the retracted position whilst releasing the needle carrier and thereby releasing the drive spring.