DEVICE FOR ADMINISTERING A FLUID PRODUCT
First Claim
1. A device for administering a fluid product, comprising:
- a product container having two ends and configured to accommodate the fluid product to be administered, said product container comprising an opening at one end and a product stopper movable relative to the product container at the other end;
a fluid reservoir for accommodating a drive fluid;
a drive member operatively coupled to the fluid reservoir;
a pressure chamber operatively coupled to the product stopper; and
a connecting means for forming a fluid connection between the fluid reservoir and the pressure chamber, said connecting means comprising a first state and a second state, wherein the fluid connection is closed in the first state and is open in the second state such that the fluid connection is open to the drive fluid;
wherein, when the product container is inserted into the device, the connecting means is activated such that the fluid connection is moved to the second state, andwherein, in the second state, the drive member acts on the fluid reservoir such that the pressure chamber is charged with a pressure that acts on the product stopper and the product is discharged from the product container.
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Accused Products
Abstract
An administering device for a fluid product includes a product receptacle that accommodates the product to be administered, a fluid reservoir for a driving fluid, a driving means, a product chamber, and a fluid connection. The product receptacle includes an opening at a forward end and a product stopper at a rear end. The driving means acts upon the fluid reservoir, the pressure chamber adjoins the product stopper while the fluid connection is located between the fluid reservoir and the pressure chamber, and the driving means acts upon the fluid reservoir in such a way that the pressure chamber is impinged upon by pressure which affects the product stopper and the product is discharged from the product receptacle.
6 Citations
24 Claims
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1. A device for administering a fluid product, comprising:
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a product container having two ends and configured to accommodate the fluid product to be administered, said product container comprising an opening at one end and a product stopper movable relative to the product container at the other end; a fluid reservoir for accommodating a drive fluid; a drive member operatively coupled to the fluid reservoir; a pressure chamber operatively coupled to the product stopper; and a connecting means for forming a fluid connection between the fluid reservoir and the pressure chamber, said connecting means comprising a first state and a second state, wherein the fluid connection is closed in the first state and is open in the second state such that the fluid connection is open to the drive fluid; wherein, when the product container is inserted into the device, the connecting means is activated such that the fluid connection is moved to the second state, and wherein, in the second state, the drive member acts on the fluid reservoir such that the pressure chamber is charged with a pressure that acts on the product stopper and the product is discharged from the product container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device for administering a fluid product, comprising:
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a product container having two ends and configured to accommodate the fluid product, the product container insertable into the device and comprising an opening at one end and a moveable product stopper adjacent to the other end; a fluid reservoir for accommodating a drive fluid; a drive member operatively coupled to the fluid reservoir; a pressure chamber operatively coupled to the product stopper; and a fluid connection between the fluid reservoir and the pressure chamber and having a first state and a second state, wherein the fluid connection is closed in the first state and open in the second state; wherein, when the product container is in the device, the fluid connection is in the second state and the drive member acts on the fluid reservoir whereby the pressure chamber is charged with a pressure that acts on the product stopper and product is discharged from the product container. - View Dependent Claims (17, 18, 19)
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20. A method for continuously administering a fluid product, using an administering device, the method comprising the steps of:
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providing an administering device comprising; a product container configured to accommodate the fluid product to be administered, said product container comprising an opening at a front end and a product stopper movable relative to the product container at a rear end; a fluid reservoir for accommodating a drive fluid; a drive element operatively coupled to the fluid reservoir; a pressure chamber operatively coupled to the product stopper; and a fluid connection between the fluid reservoir and the pressure chamber, said fluid connection comprising first state and a second state, wherein the fluid connection is closed in the first state is opened in the second state such that the fluid connection is open to the drive fluid; and actuating the administering device by inserting the product container into the device such that the fluid connection is activated and moved to the second state, wherein, in the second state, the drive element acts on the fluid reservoir such that the pressure chamber is charged with a pressure which acts on the product stopper to move the product stopper by a venting distance. - View Dependent Claims (21, 22, 23, 24)
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Specification