Device for administering an injectable product
DCFirst Claim
1. A device for administering an injectable product, comprising:
- a) a casing;
b) a container for the product accommodated by said casing;
c) a delivering means for delivering product out of said container;
d) a drive means; and
e) a transmission link via which said drive means drives said delivering means, said transmission link comprising a fluid space for an incompressible fluid and a pressure reducing means, wherein said fluid space can be impinged on a drive side by pressure from said drive means and said pressure reducing means reduces a fluid pressure generated by said drive means toward a driven side of said fluid space.
3 Assignments
Litigations
2 Petitions
Accused Products
Abstract
The invention relates to a device for administering an injectable product, comprising:
a) a casing (3);
b) a container for said product accommodated by said casing (3)
c) a delivering means (2) for delivering product out of said container (1);
d) a drive means (8); and
e) a transmission link via which said drive means (8) drives said delivering means (2).
The device is characterised in that:
f) a fluid space (21, 22) for an incompressible fluid and
g) a pressure reducing means (3, 10, 23) are provided in said transmission link;
h) wherein said fluid space (21, 22) can be impinged on a drive side by pressure from said drive means (8) and said pressure reducing means (3, 10, 23) reduces a fluid pressure generated by said drive means (8) toward a driven side of said fluid space (21, 22).
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Citations
22 Claims
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1. A device for administering an injectable product, comprising:
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a) a casing;
b) a container for the product accommodated by said casing;
c) a delivering means for delivering product out of said container;
d) a drive means; and
e) a transmission link via which said drive means drives said delivering means, said transmission link comprising a fluid space for an incompressible fluid and a pressure reducing means, wherein said fluid space can be impinged on a drive side by pressure from said drive means and said pressure reducing means reduces a fluid pressure generated by said drive means toward a driven side of said fluid space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for administering an injectable product, comprising:
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a generally cylindrical outer sleeve;
an inner sleeve generally concentric with the outer sleeve and housing a driven piston;
a ring space generally between the outer sleeve and the inner sleeve and housing a drive piston and a spring;
the outer and inner sleeves and the driven and drive pistons substantially defining a fluid space;
a capillary body in the fluid space and substantially separating the fluid space into a first partial space and a second partial space; and
at least one capillary generally defined by the capillary body and operably linking the first and second partial spaces. - View Dependent Claims (12, 13, 14, 15)
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16. A device for administering an injectable product comprising:
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means for delivering;
means for driving the means for delivering; and
a fluid coupling operably coupling the means for driving and means for delivering, whereby the energy produced by the means for driving is attenuated. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification