Patent US3894538A successfully refreshed from Google Patents.
US3894538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for supplying medicines
Assignee: Siemens AG
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Filing: 1973-08-06
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Granted: 1975-07-15
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Expires: 1993-08-06
Abstract
Abstract A device for supplying medicines or the like to the body of man or beast has a container for preserving a medicine as well as means for changing the volume of the container. The container has an opening through which the medicine is ejected when the volume of the container is diminished. The invention is particularly characterized by the provision of another container operatively joined to the first-mentioned container and having a variable volume for varying the volume of the first-mentioned container. The change in volume of the other container is produced by gas or liquid particles diffused or entering through electrical fields or by electrolytical gas development within the container.
Inventors
- 👤 Gerhard Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:00
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/142; A61M5/14244; A61M5/14276; A61M5/145; A61M5/155; A61M2005/14204
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
130 words
A device for supplying medicines to the body of man or beast, comprising means forming a first container of variable volume for containing a medicine and having an opening for delivery of medicine, means connected with the first-mentioned means and forming a second container of variable volume to vary the volume of the first-mentioned container, and means supplying volume varying means to the second mentioned container said volume varying means for said second container having a diaphragm window for receiving said volume varying means having two electrodes of different potentials and locAted on opposite sides of said diaphragm window and being embedded between said electrodes to provide a current or voltage supply for producing electrical fields so that fluid particles are transmitted into said second container in an electro-osmotic manner.
Claim 2
Independent Claim
130 words
A device for supplying medicines to the body of man or beast, comprising means forming a first container of variable volume for containing a medicine and having an opening for delivery of medicine, means connected with the first-mentioned means and forming a second container of variable volume to vary the volume of the first-mentioned container, and means supplying volume varying means to the second mentioned container said volume varying means for said second container having a diaphragm window for receiving said volume varying means having two electrodes of different potentials and locAted on opposite sides of said diaphragm window and being embedded between said electrodes to provide a current or voltage supply for producing electrical fields so that fluid particles are transmitted into said second container in an electro-osmotic manner.
Claim 3
Dependent Claim
21 words
A device in accordance with claim 1, wherein said volume varying means comprise means electrolytically developing gas in the second-mentioned container.
Claim 4
Dependent Claim
57 words
A device in accordance with claim 2, wherein the first-mentioned and the second-mentioned means jointly constitute a rigid casing having a separating wall dividing the interior of said casing into the first-mentioned container and the second-mentioned container, said separating wall pressing into the first-mentioned container when the second-mentioned container receives an excess of said volume varying means.
Claim 5
Dependent Claim
44 words
A device in accordance with claim 1, wherein the diaphragm window of the second-mentioned container is semipermeable and consists of a substance selected from the class consisting of hydrophobic material, hydrophilic material, porous teflon, non-porous teflon, polyethylene, silicon, cellulose, cellulose derivatives and ion exchangers.
Claim 6
Dependent Claim
40 words
A device in accordance with claim 1, wherein said diaphragm window consists of electrically charged material transmitting water, steam and ions, said electrodes producing current of such polarity that water is transmitted into the second-mentioned casing in an electro-osmotic manner.
Claim 7
Dependent Claim
25 words
A device in accordance with claim 5, having means supplying a current to said electrodes and having a potentiometer varying the extent of this current.
Claim 8
Dependent Claim
51 words
A device in accordance with claim 5, wherein said electrodes are current producing electrodes and consist of a combination of a metallic electrode as anode of zinc, cadmium or aluminum with a silver/silver chloride or oxygen/carbon electrode as cathode or a combination of a selective oxygen electrode and a glucose electrode.
Claim 9
Dependent Claim
36 words
A device in accordance with claim 2, wherein means electrolytically developing gas comprise a precious metal inert electrode and a counter electrode selected from the class consisting of a silver/silver chloride electrode and a zinc electrode.
Claim 10
Dependent Claim
49 words
A device in accordance with claim 8, comprising an electronic steering and regulating device for steering and regulating the current between said electrodes depending upon measured value signals received from the body, said signals producing a measure for the size of the body to be influenced by the medicine.
Claim 11
Dependent Claim
33 words
A device in accordance with claim 3, wherein said casing consists of a substance impermeable to liquid and having at least an outer surface adaptable to tissue for transplanting it into a body.
Claim 12
Dependent Claim
20 words
A device in accordance with claim 1, comprising a plug closing said opening and consisting of a finely porous material.
Claim 13
Dependent Claim
27 words
A device in accordance with claim 11, wherein the pores of said material range between 1 Mu and 20 Mu and are less than 100 Mu .
Claim 14
Independent Claim
149 words
A device for supplying medicines to the body of man or beast, comprising means forming a first container of variable volume for preserving a medicine and having an opening for delivery of medicine, means connected with the first-mentioned means and forming a second container of variable volume for varying the volume of the first container, and a device supplying volume varying means to the second container, said volume varying device comprising a diaphragm window for said second container, which consists of electrically charged material transmitting particles, such as of water, steam and ions, and further comprising at least two electrodes located on opposite sides of said diaphragm window, said diaphragm window being embedded between said electrodes, said electrodes comprising a current or voltage supply for producing current of such polarity between such electrodes, that particles, such as of water, are transmitted into the second container in an electro-osmotic manner.
Claim 15
Independent Claim
149 words
A device for supplying medicines to the body of man or beast, comprising means forming a first container of variable volume for preserving a medicine and having an opening for delivery of medicine, means connected with the first-mentioned means and forming a second container of variable volume for varying the volume of the first container, and a device supplying volume varying means to the second container, said volume varying device comprising a diaphragm window for said second container, which consists of electrically charged material transmitting particles, such as of water, steam and ions, and further comprising at least two electrodes located on opposite sides of said diaphragm window, said diaphragm window being embedded between said electrodes, said electrodes comprising a current or voltage supply for producing current of such polarity between such electrodes, that particles, such as of water, are transmitted into the second container in an electro-osmotic manner.
Claim 16
Dependent Claim
38 words
A device iN accordance with claim 13, wherein the diaphragm window of the second container is semipermeable and consists of a substance selected from the class consisting of hydrophilic material, such as cellulose, cellulose derivatives and ion exchangers.
Claim 17
Dependent Claim
28 words
A device in accordance with claim 13, said current or voltage supplying means comprising a device, such as a potentiometer, for varying the extent of current between electrodes.
Claim 18
Dependent Claim
39 words
A device in accordance with claim 13, wherein said electrodes are current producing electrodes and consist of a combination of a metallic electrode as anode of zinc, cadmium or aluminum with a silver/silver chloride or oxygen/carbon electrode as cathode.
Claim 19
Dependent Claim
28 words
A device in accordance with claim 13, wherein said electrodes are current producing electrodes and consist of a combination of a selective oxygen electrode and a glucose electrode.
Claim 20
Dependent Claim
54 words
A device in accordance with claim 13, wherein said electrode current or voltage supply comprises an electronic control device for controlling current between said electrodes depending upon measured value signals received from the body, said signals producing a measure for a variable quantity or parameter inside the body to be influenced by the medicine.
Claim 21
Dependent Claim
28 words
A device in accordance with claim 18, wherein said variable quantity or parameter is glucose inside said body and said medicine preserved by said first container is insulin.
Claim 22
Dependent Claim
43 words
A device in accordance with claim 13, comprising a plug closing said opening in said first container for delivery of medicine and consisting of a finely porous material, wherein the pores of said material range between 1 Mu m and 20 Mu m.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |