WO1997005915A1 - Pressure infusion apparatus - Google Patents
Pressure infusion apparatus Download PDFInfo
- Publication number
- WO1997005915A1 WO1997005915A1 PCT/SE1996/001007 SE9601007W WO9705915A1 WO 1997005915 A1 WO1997005915 A1 WO 1997005915A1 SE 9601007 W SE9601007 W SE 9601007W WO 9705915 A1 WO9705915 A1 WO 9705915A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- infusion
- chamber
- bag
- flow
- Prior art date
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
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags
- A61M5/1483—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags using flexible bags externally pressurised by fluid pressure
Definitions
- the present invention concerns a pressure infusion apparatus of the type that includes a chamber for receiving at least one infusion bag and in which chamber there is a pressure apparatus operating against the infusion bag for dispensing the infusion liquid through an infusion tube whereby the pressure apparatus includes a pneumatic pressure storage chamber and a pressure applicator.
- the most usual method of applying the liquid intravenously is to hang up the bag on a support about a meter over the patient and to bring the liquid from the bag to the needle in the vein, usually placed in the arm, via a plastic tube.
- the flow is regulated by a flow reduction apparatus in the tube and the amount of liquid is controlled by observation of the drop rate in a drop chamber higher up in the tube.
- the Swedish publication text nr 467 951 shows an infusion apparatus consisting of an infusion bag and on it a normally permanently fixed infusion tube including an opening tool and a flow indicator, a clip and a stop valve which prevents return flow to the bag. In use the infusion apparatus is placed under the patient to provide pressure.
- the Swedish publication text nr 448 822 shows a portable apparatus including a spring for providing liquid at constant pressure for medical or other similar applications.
- the spring exerts a constant force moment whereby sticking due to possible twisting of the sliding piece on which the spring exerts its force is eliminated.
- WO 89/11303 shows an apparatus including a spring which exerts an axial force on a vessel containing a liquid in order to squeeze out the liquid.
- German Publication text 2053995 shows a system including a lower and an upper pressure plate which can be provided with a rubber band around the plates to press them together whereby pressure is applied to an infusion bag placed between the plates so that the liquid is squeezed out of the bag.
- the purpose of the present invention is to achieve an infusion apparatus
- the apparatus can also be used for continuous application of nutrition to the digestive tract through a thin tube.
- Fig. 1 is a perspective view of the infusion apparatus accordmg to the present invention.
- Fig.2 shows schematically a cross section through the infusion apparatus according to fig. 1 with the pressure source in the compressed state.
- Fig. 3 shows a cross section along the line II-III in fig. 2 on a larger scale.
- Fig. 4 shows schematically a cross section through the infusion apparatus according to fig. 2 with the pressure source in the pumped up state.
- Fig. 5 is a cross section on a larger scale along the line V-V in the apparatus shown in fig.
- Fig. 6 shows schematically a pressure apparatus with its peripherals included in the infusion apparatus according to fig. 1.
- Fig. 7 shows in perspective an infusion bag to which a tube is attached.
- Fig. 8 shows on a larger than natural scale a cross section through the coupling apparatus of the infusion bag, two valves coupled in series according to the present invention and a infusion needle that can be attached to them.
- Fig. 9 shows in a view from above an infusion unit in the form of three parallel coupled flow regulating valves for different flow rates per unit time and an infusion needle that can be attached to them.
- the pressure infusion apparatus 10 shown in fig. 1-5 includes a housing 11 consisting of a chamber 13 with a top 12 for an infusion bag 21 and below it a vessel 14 which contains part of a pressure apparatus 18. At one end of the housing 11 there is an instrument panel mcluding further parts belonging to the pressure apparatus 18, namely a flow meter 15, a pressure indicator, for instance a pressure gauge 16, a close off valve 17 and a connection nipple 19, which parts will be described in greater detail below. At the same end the top 12 has a slit 20 through which the output tube 24 of the infusion bag is inserted.
- the top 12 preferably made of a transparent plastic material with a semicircular cross section, is attached to the lower part of the housing on hinges 31 (fig. 3) on one long side and can be made fast with locks 22, for example eccentric locks, on the other long side.
- Fig. 2 and 3 show schematically a cross section through the exemplification shown in fig. 1.
- a pressure source 27 which consists of a membrane 27a or similar thing which divides the chamber 13 into an infusion chamber 13a and a pressure chamber 27b.
- the membrane 27a is made of a supple, flexible air tight material, for example a cloth, which essentially cannot be stretched but which is so large that in the passive state it lies against the bottom of the chamber and in the stretched state it presses against the inside of the top.
- the pressure chamber 27b of the pressure source 27 is thus formed by the said membrane 27a and the bottom and side walls of the pressure chamber.
- Fig. 4 and 5 show the infusion apparatus illustrated in fig. 2 and 3 but with the membrane 27a of the pressure source 27 inflated and with the infusion bag 21 in the compressed, almost empty state.
- the function and use of the pressure apparatus 18 will now be described with reference to fig. 6. It contains a pressure storage chamber 25 in the form of a pressure vessel 14 for compressed air, which storage chamber 25 can be attached to a pump (not shown) via a nipple 19 with a stop valve 34, which pump fills the storage chamber with compressed air, for example at a pressure of 6.5 kg/cm .
- the pressure gauge 16 shows the pressure in the pressure storage chamber 25. In use, that is, when an infusion bag 21 has been placed in the infusion chamber 13a, the two way valve 17 is opened and compressed air flows to the pressure reduction valve 26 of conventional type. Here the pressure is reduced, for example
- the pressure chamber 27b is pressurised, whereby the flow meter 15 indicates how much air has been let into the chamber, that being an approximate measure of the amount of infusion liquid that has flowed out of the infusion bag 21.
- the valve 17 is readjusted so that the interior of the pressure chamber 27b communicates with the atmosphere and air enters it.
- the infusion apparatus is designed to be mobile it can also be equipped with a pump, for example a hand or foot pump to pump air into the pressure storage chamber. It can also be detachable for quick exchange with a pressurised vessel.
- a pump for example a hand or foot pump to pump air into the pressure storage chamber. It can also be detachable for quick exchange with a pressurised vessel.
- the tube 24 attached to the bag 21 is equipped in a known way with a needle 33 for perforation of a membrane in the output channel of the bag while the other end of the tube is equipped with a coupling 37, for example in the form of a luer lock coupling 41, as is shown in fig. 7 and 8.
- a flow regulating valve 28 is coupled, which in the exemplification according to fig. 8 has been given a form similar to that of the coupling 37 and which consists of a neck 39 and an inner conical hole 40 to which the luer lock coupling's 37 male coupling 38 having the same conical form is attached.
- the other part of the valve is equipped with a luer lock coupling 41 while the conical piece 35 corresponding to the male coupling 38 has a hole 30, for example with a diameter of 0.2-0.5 mm.
- the hole is made of a part of an infusion needle of desired inner diameter moulded in the flow regulating valve 28.
- Each flow regulating valve 28 thus has an exactly determined hole diameter, on the drawing fig. 8 indicated by a d, and a given hole length 1 for each type of valve.
- Several flow regulating valves 28 can be arranged in series after each other, possibly with different hole lengths 1 from 3 to 15 mm, but with the same hole diameter, if a greater reduction is desired.
- valves 28 can be parallel coupled in an infusion unit 36 as is shown in fig. 9.
- the unit 36 includes a stop-cock 43 with an input flow opening and three output flow openings each of which is separately attachable to the input flow opening which in turn is attachable to the coupling 37 of the output tube 24.
- One or more flow regulating valves 28 are coupled to each output opening via appropriate filters.
- valve combination 1 an infusion bag lasts for 2 1/2 hours.
- valve combination 2 an infusion bag lasts for 5 hours.
- valve combination 3 an infusion bag lasts for about 20 minutes.
- valve combination 4 an infusion bag lasts for about 50 minutes.
- valve combination (3 + 4) an infusion bag lasts for about 1 hour.
- the flow regulating valves are thus calibrated to give a certain amount of liquid per unit time. They can be coupled in series according to fig. 8 to increase the number of possibilities and they can be marked with clear information. For increased safety color markings can be used.
- the flow regulating valves' free ends are coupled to a needle 32 in a vein.
- the whole apparatus can then be placed beside the patent on the bed, on a table or something else near the patient. It requires no elevation above the patent and it can also be carried by the patient on a strap or in a bag. No drop indicator is needed. No one is needed to hold the bag when there has been an accident or a catastrophe. It is easy to use for example in an ambulance. Because there is no air in the system air emboli are eliminated and the risk of incorrect dosage is minimal. In most cases the precision is sufficient for dosage of medicines. Should for some reason the pressure in the pressure storage chamber be exhausted and a pressure source not be available in the vicinity the pressure infusion apparatus can be placed in the conventional manner about 1 1/2 meters above the patient thus ensuring a flow due to gravitational force.
- the chamber 13 in the housing 11 can be cylindrical with only one opening in the forward end of the housing through which the infusion bag 21 is inserted into the apparatus 10 (the top 13 thus being eliminated).
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU67121/96A AU700259B2 (en) | 1995-08-09 | 1996-08-09 | Pressure infusion apparatus |
US09/011,444 US6406458B1 (en) | 1995-08-09 | 1996-08-09 | Pressure infusion apparatus |
JP9508381A JPH11510415A (en) | 1995-08-09 | 1996-08-09 | Pressure injection device |
EP96927231A EP0850077B1 (en) | 1995-08-09 | 1996-08-09 | Pressure infusion apparatus in combination with a flow regulating valve |
CA002228760A CA2228760C (en) | 1995-08-09 | 1996-08-09 | Pressure infusion apparatus |
DE69634570T DE69634570T2 (en) | 1995-08-09 | 1996-08-09 | PRESSURE INJECTION CAP IN COMBINATION WITH A FLOW VALVE |
AT96927231T ATE292486T1 (en) | 1995-08-09 | 1996-08-09 | PRESSURE INFUSION APPARATUS IN COMBINATION WITH A FLOW VALVE |
NO19980476A NO319594B1 (en) | 1995-08-09 | 1998-02-04 | Pressure infusion apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9502789A SE9502789D0 (en) | 1995-08-09 | 1995-08-09 | Pressure infusion apparatus |
SE9502789-2 | 1995-08-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997005915A1 true WO1997005915A1 (en) | 1997-02-20 |
Family
ID=20399144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1996/001007 WO1997005915A1 (en) | 1995-08-09 | 1996-08-09 | Pressure infusion apparatus |
Country Status (12)
Country | Link |
---|---|
US (1) | US6406458B1 (en) |
EP (1) | EP0850077B1 (en) |
JP (1) | JPH11510415A (en) |
AT (1) | ATE292486T1 (en) |
AU (1) | AU700259B2 (en) |
CA (1) | CA2228760C (en) |
DE (1) | DE69634570T2 (en) |
ES (1) | ES2240998T3 (en) |
NO (1) | NO319594B1 (en) |
RU (1) | RU2177806C2 (en) |
SE (1) | SE9502789D0 (en) |
WO (1) | WO1997005915A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1028765A1 (en) * | 1997-11-04 | 2000-08-23 | SIMS Level 1, Inc. | Infusion system with improved control valve |
DE19907744A1 (en) * | 1999-02-23 | 2000-08-24 | Backes Claus H | Unit for intracorporal injections comprises a space for a bag with the injection medium, and a device allowing the bag to be subjected directly or indirectly to a pressurized fluid |
WO2010014673A1 (en) * | 2008-07-29 | 2010-02-04 | Mallinckrodt Inc. | Injection device with expandable drive fluid chamber |
EP2178476A1 (en) * | 2007-08-14 | 2010-04-28 | Innercool Therapies, Inc. | Methods and systems for inducing therapeutic hypothermia in a pre-hospital, field, or ambulance setting |
CN111068173A (en) * | 2020-01-03 | 2020-04-28 | 上海旭润医学科技有限责任公司 | Disposable wearable micro-flow continuous drug delivery system |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE8301395L (en) * | 1983-03-15 | 1984-09-16 | Wallac Oy | KELATIZING COMPOUNDS WITH FUNCTIONAL GROUPS WHICH ALLOW COVALENT COUPLING TO BIO-ORGANIC MOLECULES |
SE0000866L (en) * | 2000-03-16 | 2001-09-17 | Peter Unger Med P U Med Konsul | Method and apparatus for the treatment of biological material |
IL152950A0 (en) | 2002-11-19 | 2003-06-24 | Biometrix Ltd | A fluid administrating manifold |
EP1624915A1 (en) * | 2003-04-11 | 2006-02-15 | Novo Nordisk A/S | Delivery device |
US20060069382A1 (en) * | 2003-04-11 | 2006-03-30 | Novo Nordisk A/S | Delivery device |
AT413649B (en) * | 2003-08-04 | 2006-04-15 | Pro Med Medizinische Produktio | DEVICE FOR DOSED DISPENSING OF A LIQUID |
EP1682069B1 (en) * | 2003-10-21 | 2009-07-08 | Novo Nordisk A/S | Reservoir device with inclined needle |
DE602004022075D1 (en) * | 2003-10-21 | 2009-08-27 | Novo Nordisk As | RESERVOIR DEVICE WITH INTEGRATED FASTENER |
EP1755522A1 (en) * | 2004-06-07 | 2007-02-28 | Novo Nordisk A/S | Reservoir with liquidly applied seal |
US8070668B2 (en) * | 2006-01-20 | 2011-12-06 | L-Vad Technology | Controlled inflation of a pneumatic L-VAD |
CN101977643A (en) * | 2008-03-24 | 2011-02-16 | 奥林巴斯株式会社 | Medicinal-solution administration device |
US20120164718A1 (en) * | 2008-05-06 | 2012-06-28 | Innovative Micro Technology | Removable/disposable apparatus for MEMS particle sorting device |
GB0821492D0 (en) * | 2008-11-25 | 2008-12-31 | Team Holdings Uk Ltd | Integrated auto-injector cartridge system |
US9074920B2 (en) | 2009-06-03 | 2015-07-07 | Biometrix Ltd. | Apparatus and method for bedside collection of body fluids and automatic volume level monitoring |
US9357950B2 (en) | 2009-06-03 | 2016-06-07 | Biometrix Ltd. | Apparatus and method of fluid aspiration |
US8696630B2 (en) * | 2011-01-28 | 2014-04-15 | Calibra Medical, Inc. | Detachable drug delivery device |
CN103874519B (en) * | 2011-06-24 | 2016-03-16 | 解救点滴有限公司 | Elasticity infusion pump |
WO2013123257A1 (en) * | 2012-02-14 | 2013-08-22 | Paul Miller | Pump and monitor for iv pressure bag infusers |
CN104043158A (en) * | 2013-03-13 | 2014-09-17 | 解救点滴有限公司 | Rugged Infusion Device |
US10052434B2 (en) * | 2014-12-04 | 2018-08-21 | University Of Florida Research Foundation, Inc. | Devices and methods for minimizing infusion of air into an intravenous fluid line from an intravenous fluid bag by a pressure infusion cuff |
CN106564704B (en) * | 2016-11-02 | 2019-03-15 | 东华理工大学 | Micro-control sampler bag |
CN107929871A (en) * | 2018-01-10 | 2018-04-20 | 程基才 | A kind of free style can retention transfusion system without draw point essence control |
CN110141720B (en) * | 2019-06-21 | 2021-04-27 | 青岛大学附属医院 | Operating room blood transfusion bag heat preservation pressure device |
US11717636B2 (en) * | 2019-10-01 | 2023-08-08 | GE Precision Healthcare LLC | Anesthesia vaporizer system having a variable volume reservoir |
CN116783387A (en) * | 2021-02-01 | 2023-09-19 | 株式会社村田制作所 | Pressurizing device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2246054A1 (en) * | 1971-09-28 | 1973-04-05 | Bestnu Engineering Pty | DEVICE FOR SUBcutaneous administration of intravenous fluids |
DE2731448A1 (en) * | 1976-07-14 | 1978-01-19 | Aharon Dr Cohen | Medical liq. infusion device - has bladder filled with pressurised liq. discharged via suitable distributor |
Family Cites Families (7)
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US3640277A (en) * | 1968-12-09 | 1972-02-08 | Marvin Adelberg | Medical liquid administration device |
DE2053995A1 (en) | 1970-11-03 | 1972-05-04 | Lang, Volker, Dr.Med., 8045 Ismaning | Pressure infusion system especially suitable for emergencies |
US4447232A (en) | 1982-05-21 | 1984-05-08 | Repro-Med Systems, Inc. | Spring-operated liquid-dispensing device |
FR2631551A1 (en) | 1988-05-17 | 1989-11-24 | Soudant Jacques | SYSTEM FOR PERFUSION OF A LIQUID INTO A BLOOD PATH, PARTICULARLY OF A HUMAN BEING |
SE467951B (en) | 1990-12-13 | 1992-10-12 | Axel Johnson Lab System | Infusion apparatus |
US5207645A (en) * | 1991-06-25 | 1993-05-04 | Medication Delivery Devices | Infusion pump, treatment fluid bag therefor, and method for the use thereof |
US5700245A (en) * | 1995-07-13 | 1997-12-23 | Winfield Medical | Apparatus for the generation of gas pressure for controlled fluid delivery |
-
1995
- 1995-08-09 SE SE9502789A patent/SE9502789D0/en unknown
-
1996
- 1996-08-09 JP JP9508381A patent/JPH11510415A/en active Pending
- 1996-08-09 WO PCT/SE1996/001007 patent/WO1997005915A1/en active IP Right Grant
- 1996-08-09 EP EP96927231A patent/EP0850077B1/en not_active Expired - Lifetime
- 1996-08-09 AU AU67121/96A patent/AU700259B2/en not_active Ceased
- 1996-08-09 DE DE69634570T patent/DE69634570T2/en not_active Expired - Fee Related
- 1996-08-09 RU RU98104423/14A patent/RU2177806C2/en not_active IP Right Cessation
- 1996-08-09 US US09/011,444 patent/US6406458B1/en not_active Expired - Fee Related
- 1996-08-09 ES ES96927231T patent/ES2240998T3/en not_active Expired - Lifetime
- 1996-08-09 AT AT96927231T patent/ATE292486T1/en not_active IP Right Cessation
- 1996-08-09 CA CA002228760A patent/CA2228760C/en not_active Expired - Fee Related
-
1998
- 1998-02-04 NO NO19980476A patent/NO319594B1/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2246054A1 (en) * | 1971-09-28 | 1973-04-05 | Bestnu Engineering Pty | DEVICE FOR SUBcutaneous administration of intravenous fluids |
DE2731448A1 (en) * | 1976-07-14 | 1978-01-19 | Aharon Dr Cohen | Medical liq. infusion device - has bladder filled with pressurised liq. discharged via suitable distributor |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1028765A1 (en) * | 1997-11-04 | 2000-08-23 | SIMS Level 1, Inc. | Infusion system with improved control valve |
EP1028765A4 (en) * | 1997-11-04 | 2006-11-02 | Sims Level 1 Inc | Infusion system with improved control valve |
DE19907744A1 (en) * | 1999-02-23 | 2000-08-24 | Backes Claus H | Unit for intracorporal injections comprises a space for a bag with the injection medium, and a device allowing the bag to be subjected directly or indirectly to a pressurized fluid |
EP2178476A1 (en) * | 2007-08-14 | 2010-04-28 | Innercool Therapies, Inc. | Methods and systems for inducing therapeutic hypothermia in a pre-hospital, field, or ambulance setting |
EP2178476A4 (en) * | 2007-08-14 | 2012-09-26 | Innercool Therapies Inc | Methods and systems for inducing therapeutic hypothermia in a pre-hospital, field, or ambulance setting |
WO2010014673A1 (en) * | 2008-07-29 | 2010-02-04 | Mallinckrodt Inc. | Injection device with expandable drive fluid chamber |
CN111068173A (en) * | 2020-01-03 | 2020-04-28 | 上海旭润医学科技有限责任公司 | Disposable wearable micro-flow continuous drug delivery system |
Also Published As
Publication number | Publication date |
---|---|
AU700259B2 (en) | 1998-12-24 |
NO980476D0 (en) | 1998-02-04 |
NO980476L (en) | 1998-02-04 |
ATE292486T1 (en) | 2005-04-15 |
NO319594B1 (en) | 2005-08-29 |
DE69634570D1 (en) | 2005-05-12 |
DE69634570T2 (en) | 2006-02-16 |
ES2240998T3 (en) | 2005-10-16 |
EP0850077A1 (en) | 1998-07-01 |
SE9502789D0 (en) | 1995-08-09 |
CA2228760A1 (en) | 1997-02-20 |
JPH11510415A (en) | 1999-09-14 |
US6406458B1 (en) | 2002-06-18 |
EP0850077B1 (en) | 2005-04-06 |
AU6712196A (en) | 1997-03-05 |
RU2177806C2 (en) | 2002-01-10 |
CA2228760C (en) | 2004-08-03 |
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