GB1452104A - Device for supplying medicaments - Google Patents

Device for supplying medicaments

Info

Publication number
GB1452104A
GB1452104A GB3682873A GB3682873A GB1452104A GB 1452104 A GB1452104 A GB 1452104A GB 3682873 A GB3682873 A GB 3682873A GB 3682873 A GB3682873 A GB 3682873A GB 1452104 A GB1452104 A GB 1452104A
Authority
GB
United Kingdom
Prior art keywords
medicament
membrane
chamber
increase
volume
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3682873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19722239432 external-priority patent/DE2239432C3/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1452104A publication Critical patent/GB1452104A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/14244—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
    • A61M5/14276—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body specially adapted for implantation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/155—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by gas introduced into the reservoir
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M2005/14204—Pressure infusion, e.g. using pumps with gas-producing electrochemical cell

Abstract

1452104 Implantable surgical pump SIEMENS AG 2 Aug 1973 [10 Aug 1972] 36828/73 Heading A5R [Also in Divisions C7, F1 and H1] Apparatus for supplying medicaments or the like to a human or animal body comprises a container providing storage space for a medicament and having an outlet for the passage of medicament from the container to the body; a variable-volume vessel arranged so that increase in its volume reduces the storage space of the container, thereby causing medicament to pass out of the container via the outlet; and electrical means operable to promote an increase in the quantity of fluid in the vessel to increase its volume. The electrical means may comprise electro-osmosis or electrolysis devices. A housing 1 is made of, or covered by, a material impervious to liquid and compatible with body tissue, e.g. epoxy resin. The interior of the housing is divided into chambers, 3, 4 by a liquid-impervious, elastic membrane 2. Preferably the membrane 2 and the inner surface of chamber 3 are metallised. Housing 1 is implanted or carried outside the body and chambers 3, 4 are filled by an injection needle, which may be passed through the skin into tapered bores 25, 26 with valves 27, 28 respectively. To increase the volume of chamber 4, a window is formed in the wall which is closed by an electrically chargeable membrane 9 sandwiched between electrodes 10, 11 which establish an electric field through membrane 9, so that water and body fluid pass through the membrane into chamber 4. Membrane 2 is displaced so that medicament is forced slowly and continuously out of chamber 3, through a tube 6, and out through a porous plug 7 at a point where the medicament is required. Electrode 11 is shielded by a tissue-compatible membrane 12. Current is supplied by a battery 13 situated outside the body. The anode may be zinc, cadmium, aluminium or glucose, and the cathode may be silver/silver chloride or oxygen/carbon electrode. When a glucose/oxygen electrode combination is used for the supply of insulin for a diabetic patient, the current between the electrodes depends on the glucose content of the patient's body tissue, and the system may be made self-regulating A body value influenced by the medicament may control the discharge of medicament. In a modification, chamber (4), Fig. 3, not shown, is constructed with a bellows which is expanded by the generation of gas electrolytically and thus forces medicament out of the chamber 3. Reference has been directed by the comptroller to Specification 1345764.
GB3682873A 1972-08-10 1973-08-02 Device for supplying medicaments Expired GB1452104A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722239432 DE2239432C3 (en) 1972-08-10 Device for the delivery of medication

Publications (1)

Publication Number Publication Date
GB1452104A true GB1452104A (en) 1976-10-13

Family

ID=5853263

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3682873A Expired GB1452104A (en) 1972-08-10 1973-08-02 Device for supplying medicaments
GB5750973A Expired GB1452138A (en) 1972-08-10 1973-12-12 Removal of heat-softenable marking material on containers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB5750973A Expired GB1452138A (en) 1972-08-10 1973-12-12 Removal of heat-softenable marking material on containers

Country Status (7)

Country Link
US (1) US3894538A (en)
AT (1) AT345438B (en)
CH (1) CH557178A (en)
FR (1) FR2195461B1 (en)
GB (2) GB1452104A (en)
NL (1) NL7310455A (en)
SE (1) SE419406B (en)

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US8025658B2 (en) 2007-04-30 2011-09-27 Medtronic Minimed, Inc. Adhesive patch systems and methods
US8187228B2 (en) 2006-08-23 2012-05-29 Medtronic Minimed, Inc. Infusion pumps and methods and delivery devices and methods with same
US8277415B2 (en) 2006-08-23 2012-10-02 Medtronic Minimed, Inc. Infusion medium delivery device and method with drive device for driving plunger in reservoir
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US8323250B2 (en) 2007-04-30 2012-12-04 Medtronic Minimed, Inc. Adhesive patch systems and methods
US8434528B2 (en) 2007-04-30 2013-05-07 Medtronic Minimed, Inc. Systems and methods for reservoir filling
US8512288B2 (en) 2006-08-23 2013-08-20 Medtronic Minimed, Inc. Infusion medium delivery device and method with drive device for driving plunger in reservoir
US8597243B2 (en) 2007-04-30 2013-12-03 Medtronic Minimed, Inc. Systems and methods allowing for reservoir air bubble management
US8613725B2 (en) 2007-04-30 2013-12-24 Medtronic Minimed, Inc. Reservoir systems and methods
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US9271866B2 (en) 2007-12-20 2016-03-01 University Of Southern California Apparatus and methods for delivering therapeutic agents
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Also Published As

Publication number Publication date
SE419406B (en) 1981-08-03
FR2195461A1 (en) 1974-03-08
GB1452138A (en) 1976-10-13
NL7310455A (en) 1974-02-12
AT345438B (en) 1978-09-11
US3894538A (en) 1975-07-15
DE2239432A1 (en) 1974-02-21
FR2195461B1 (en) 1977-07-29
ATA670673A (en) 1978-01-15
DE2239432B2 (en) 1976-08-26
CH557178A (en) 1974-12-31

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