Substance dispensing device with signaling device
Device for dispensing a substance having: a dispensing element through which the substance can be dispensed, a displaceable protective element for the dispensing element, a drive element that is coupled with the protective element and a feedback element which can generate a signal when or after a predefined quantity or the entire quantity of the substance to be dispensed has been dispensed characterized in that the feedback device is coupled with the drive element.
1. A device for administering a substance, comprising:
a housing with a longitudinal axis;
a syringe holder for holding a syringe with a needle, wherein the substance can be dispensed by means of the syringe and the needle;
a displaceable needle protective sleeve;
a drive element coupled with the needle protective sleeve;
an injection spring providing energy for dispensing the substance; and
a first feedback element that produces an end signal when a predefined quantity of the substance has been dispensed,
wherein the syringe is held in the syringe holder toward a front of the device by means of a shoulder support of the syringe holder and by means of a ring or a housing tapering of the housing, and
wherein the shoulder support of the syringe holder protrudes radially inward and is permanently secured against a radially outward release by means of the ring or the housing tapering of the housing.
2. The device according to claim 1 , wherein a front side of the syringe holder rests on radially inwardly protruding ribs or projections of the housing.
3. The device according to claim 1 , further comprising first cams on spring arms of the syringe holder that engage in axially running grooves of the displaceable needle protective sleeve.
4. The device according to claim 3 , wherein the first cams move radially inwards with the application of pressing force on the displaceable needle protective sleeve to allow a proximal movement of the needle protective sleeve into the housing.
5. The device according to claim 4 , further comprising second cams protruding radially outwards, arranged on the spring arms of the syringe holder and engaging in the axially running grooves at a distance from the first cams corresponding to a length of the axially running grooves, such that the needle protective sleeve is held against an axial displacement by the first and second cams.
6. The device according to claim 1 , wherein the first feedback element is coupled to the drive element.
7. The device according to claim 1 , wherein the needle protective sleeve covers or surrounds the needle before and/or after the substance is dispensed.
8. The device according to claim 1 , further comprising a releasable holding device configured to hold the first feedback element until the predefined quantity of substance has been released.
9. The device according to claim 8 , wherein the releasable holding device and a piston rod cooperate to hold the first feedback element.
10. The device according to claim 9 , wherein upon the piston rod moving in a distal direction to release the predefined quantity of substance, the drive element moves the first feedback element in a proximal direction thereby causing the end signal to be produced.
11. A device for administering a substance, comprising:
a housing with a longitudinal axis;
a syringe holder for holding a syringe with a needle, wherein the substance can be dispensed by means of the syringe and the needle;
a displaceable needle protective sleeve;
a drive element coupled with the needle protective sleeve;
an injection spring providing energy for dispensing the substance; and
a first feedback element that produces an end signal when a predefined quantity of the substance has been dispensed,
wherein the syringe is held in the syringe holder toward a front of the device by means of a shoulder support of the syringe holder and by means of a ring or a housing tapering of the housing, and
wherein the syringe holder is arranged stationary in the housing when in use.
12. The device according to claim 11 , wherein a front side of the syringe holder rests on radially inwardly protruding ribs or projections of the housing.
13. The device according to claim 11 , further comprising first cams on spring arms of the syringe holder that engage in axially running grooves of the displaceable needle protective sleeve.
14. The device according to claim 11 , wherein the first feedback element is coupled to the drive element.
15. The device according to claim 11 , wherein the needle protective sleeve covers or surrounds the needle before and/or after the substance is dispensed.
16. The device according to claim 11 , further comprising a releasable holding device configured to hold the first feedback element until the predefined quantity of substance has been dispensed.
17. A device for administering a substance, comprising:
a housing with a longitudinal axis;
a syringe holder for holding a syringe with a needle, wherein the substance can be dispensed by means of the syringe and the needle;
a displaceable needle protective sleeve;
a drive element coupled with the needle protective sleeve;
an injection spring providing energy for dispensing the substance; and
a first feedback element that produces an end signal when a predefined quantity of the substance has been dispensed,
wherein the syringe is held in the syringe holder toward a front of the device by means of a shoulder support of the syringe holder and by means of a ring or a housing tapering of the housing,
wherein the needle protective sleeve covers or surrounds the needle before and/or after the substance is dispensed, and
wherein after the predefined quantity of substance has been dispensed, the drive element moves the displaceable needle protective sleeve in a distal direction with respect to the housing to cover the needle over an entire length of the needle.
18. The device according to claim 17 , wherein a front side of the syringe holder rests on radially inwardly protruding ribs or projections of the housing.
19. The device according to claim 17 , further comprising first cams on spring arms of the syringe holder that engage in axially running grooves of the displaceable needle protective sleeve.
20. The device according to claim 17 , wherein the first feedback element is coupled to the drive element.