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WO1995000191A1 - Infusion apparatus for transferring liquid to a patient - Google Patents

Infusion apparatus for transferring liquid to a patient Download PDF

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Publication number
WO1995000191A1
WO1995000191A1 PCT/FI1994/000218 FI9400218W WO9500191A1 WO 1995000191 A1 WO1995000191 A1 WO 1995000191A1 FI 9400218 W FI9400218 W FI 9400218W WO 9500191 A1 WO9500191 A1 WO 9500191A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
patient
protective bag
pouch
infusion apparatus
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.)
Ceased
Application number
PCT/FI1994/000218
Other languages
French (fr)
Inventor
Markku Puhakka
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to AU67982/94A priority Critical patent/AU6798294A/en
Publication of WO1995000191A1 publication Critical patent/WO1995000191A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • A61M5/145—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
    • 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
    • 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
    • A61M5/44—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 having means for cooling or heating the devices or media
    • A61M5/445—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 having means for cooling or heating the devices or media the media being heated in the reservoir, e.g. warming bloodbags

Definitions

  • the present invention is related to an infusion apparatus for transferring liquid to a patient, said apparatus comprising at least one liquid pouch, a means attached to said liquid pouch for transferring the liquid from the liquid pouch to the patient, a pressurizing means adapted adjacent to the liquid pouch for compressing the liquid pouch, and a pressure control circuit for said pressurizing means.
  • liquid is transferred intravenously to sick and/or injured patients.
  • the prior art recognizes and uses a plurality of different infusion apparatuses to implement liquid transfer.
  • Such apparatuses comprise a liquid-filled container or containers to which a long tubing with a needle at its distal end is connected and the liquid is transferred via the needle to the patient.
  • Conventional liq ⁇ id transfer equipment provide a reliable function in indoors use and controlled conditions.
  • the infusion apparatus comprises a thermally insulated protective bag shaped to fit about the patient's limb and suited to accommodate the liquid pouch or pouches, a liquid transfer means, a liquid pressurizing means and a pressure control circuit.
  • the liquid transfer circuit is closed, air-free, controllably pressurized, thermally insulated and shock- proof. Liquid transfer in the system is not affected by the position of the patient's limb or body or external disturbance factors. An injured or disabled patient using the apparatus can move and operate freely. A smaller number of medical personnel than in the prior art will be required thus offering cost savings.
  • the apparatus is equally well suited for civilian and military use.
  • the invention facilitates reliable infusion at a sufficiently early stage and with a relatively constant infusion liquid temperature, which is crucial to the prognosis of the patient.
  • the apparatus can be employed both under the field conditions of military use and in civilian applications.
  • the protective bag comprises at least two cover parts which are attached hingedly and lockably to each other.
  • the cover parts are appropriately shaped to fit about, e.g. , either upper limb.
  • the protective bag is easy to attach to the limb and it stays reliably in place after fitting.
  • the infusion apparatus has the liquid pouch advantageously positioned to the inside of a inflatable cuff acting as a pressurizing means, whereby the inner outside surface of the cuff is placed - against the patient's limb.
  • the inflatable cuffs are positioned to both sides of the limb, the cuffs become fixed to the limb by the applied pressure, whereby the protective bag stays fixed relative to the limb.
  • the protective bag is provided with a handle which acts as a carrying handle.
  • a handle which acts as a carrying handle.
  • the end of the protective bag is provided with a support strap harness for fixing and supporting the protective bag to the body, advantageously to the shoulder of the limb opposite to that being infused.
  • This arrangement equalizes the weight imposed on the upper limb and lightens the carrying of the apparatus by the patient.
  • Figure 1 is a side view of an infusion apparatus according to the invention fixed to the patient's upper limb;
  • Figure 2 is a cross-sectional view of the infusion apparatus illustrated in Fig. 1;
  • Figure 3 is a top view of the apparatus illustrated in
  • FIG. 1 Figure 4 is a side view of the apparatus illustrated in
  • FIG. 1 Figure 5 is a diagrammatic representation of an embodiment of the liquid transfer circuit of an apparatus according to the invention.
  • Figure 6 is a diagrammatic representation of an embodiment of the pressurization circuit of an apparatus according to the invention.
  • the infusion apparatus comprises a protective bag 7. housing two liquid pouches 1, a means 2 for transferring the liquid from the pouch to the patient, a pressurizing means 4 and a pressure control circuit 5.
  • the protective bag comprises two cover parts having hinges 9 mounted to their one sides and locking means 10 to their other sides.
  • a thermal insulation layer 6 To the interior surface of the protective bag is attached a thermal insulation layer 6. Both ends of the protective bag are provided with holes to accommodate the patient's limb and the holes are provided with paddings. Furthermore, the end of the protective bag is provided with a handle 8.
  • a tubing with attached infusion cannula are provided for connection to the liquid pouch 2.
  • the liquid pouches 1 are placed to the opposite sides of the limb 11, to both sides of the protective bag.
  • the liquid pouches are positioned to the inside of the inflatable cuff serving as a pressurizing means 4, and the inner exterior surface of the inflatable cuff is adapted against the patient's limb.
  • Compressed air introduced into the inflatable cuffs expands the cuff inward relative to its outside, thus forcing the liquid distally forward along the tubing.
  • the compressed-air container 12 is in the illus ⁇ trated embodiment adapted along the longer side of the protective bag (as drafted by dashed lines in Fig. 2).
  • the elements mounted on the protective bag cover are illustrated and the elements are the same as those in the operation diagram of pressure circuit shown in Fig. 6.
  • These elements comprise a fill valve 13 of the compressed-air container, a pressure gage 14 for the compressed-air container pressure, a pressure- regulating valve and flow indicator 15, a pressure shutoff valve 16, a pressure relief valve 17, a pressure gage 18 for cuff pressure, a thermometer 19 for bag interior"temperature indication and a valve 20 for external control of the infusion flow rate.
  • the pressure-regulating valve 15 has adjustment limits for the cuff pressure and a flow indicator for indicating the end of the compressed air flow when the inflatable cuffs become fully expanded and the liquid pouches are empty.
  • the shutoff valve 16 serves for controlling the compressed air flow from pressure circuit to the inflatable cuffs. Any possible overpressure can escape from the pressure circuit via the pressure-relief valve 17, and the valve also serves for releasing the pressure from the inflatable cuffs.
  • the pressure gage 18 for the inflatable cuff pressure serves for the monitoring of the inflation pressure in the cuffs.
  • the thermometer 19 indicates the internal temperature of the protective bag.
  • the protective bag 7 When using the apparatus and starting the infusion, the protective bag 7 is opened and the limb 11 of the patient is placed in the trough of the protective bag.
  • the intravenous cannula is inserted in the vein.
  • the tubing of the infusion liquid pouches 1 is connected to a T-connector, the T- connector is turned to open position, the remaining small volume or air is expelled by pressing the pouch and the end of the tubing leaving the T-connector is blocked.
  • the tubing is connected to the intravenous cannula, the blocking clip is removed from the tubing and the protective bag is closed.
  • the shutoff valve 16 is opened, compressed air is released from the compressed-air container 12 to the inflatable cuffs 4 and the cuff pressure is set to desired level by the pressure-regulating valve 15.
  • the T-connector is used for controlling the liquid transfer operation.
  • the pressure-regulating valve 15 alerts the user by a visual signal or other manner at the end of the compressed-air flow that the liquid pouch is empty, without any need for opening the protective bag.
  • the system is practically fail-safe against entry of air to the patient's circulation.
  • the interior of the bag can be provided with, e.g., chemical heater elements to keep the liquids warm, and a heater element may be additionally placed between the inflatable cuff and the liquid pouch for the duration of the infusion.

Landscapes

  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention is related to an infusion apparatus for transferring liquid to a patient, said infusion apparatus comprising at least one liquid pouch, a means attached to said liquid pouch for transferring the liquid from the liquid pouch to a patient (3), a pressurizing means adapted adjacent to the liquid pouch for compressing the liquid pouch, and a pressure control circuit for said pressurizing means. The infusion apparatus according to the invention comprises a thermally insulated protective bag (7) shaped to fit about the patient's limb and suited to accommodate the liquid pouch or pouches, the liquid transfer means, the liquid pressurizing means and the pressure control circuit.

Description

INFUSION APPARATUS FOR TRANSFERRING LIQUID TO A PATIENT
The present invention is related to an infusion apparatus for transferring liquid to a patient, said apparatus comprising at least one liquid pouch, a means attached to said liquid pouch for transferring the liquid from the liquid pouch to the patient, a pressurizing means adapted adjacent to the liquid pouch for compressing the liquid pouch, and a pressure control circuit for said pressurizing means.
Conventionally, liquid is transferred intravenously to sick and/or injured patients. The prior art recognizes and uses a plurality of different infusion apparatuses to implement liquid transfer. Such apparatuses comprise a liquid-filled container or containers to which a long tubing with a needle at its distal end is connected and the liquid is transferred via the needle to the patient. Conventional liqμid transfer equipment provide a reliable function in indoors use and controlled conditions.
Multiple studies performed indicate that a sufficiently early commenced liquid transfer is a crucial life-saving factor for the patient in cases where the transport of the injured/sick patient to an emergency care facility may take tens of minutes. Loss of body fluids may cause a significant risk of additional injury. Thus, liquid transfer at an earliest possible instant becomes a critical factor for the prognosis of the patient.
Implementation of efficient first aid and emergency care with the concomitant liquid transfer in the field, and par¬ ticularly in cold conditions, is problematic with con¬ ventional equipment. When patients are treated at accident sites, battlefields and under other field conditions, a complication arises from the susceptibility of the tubing system and the entire equipment to various disturbance factors involving a great number of personnel to operate the equipment and attend to the patients. Under cold conditions the temperature of the infusion liquid falls extremely rapidly in the long, thin tubing even permitting the liquid to freeze and thus obstructing the flow. Moreover, a cold infusion liquid is not compatible with intravenous infusion. Further problems are posed by the freely hanging tubing which may cling to obstacles and projections during the transfer of the patient, change of patient position or movements of the patient. Resultingly, the risk of complications is increased.
It is an object of the invention to provide an infusion apparatus for transferring liquid to a patient, capable of overcoming the drawbacks of conventional apparatuses. It is a particular object of the invention to provide an infusion apparatus which is safe and reliable to use under all conditions, particularly under cold conditions.
The goal of the invention is achieved by virtue of an infusion apparatus characterized by what is stated in the annexed claims.
The infusion apparatus according to the invention comprises a thermally insulated protective bag shaped to fit about the patient's limb and suited to accommodate the liquid pouch or pouches, a liquid transfer means, a liquid pressurizing means and a pressure control circuit. In such an infusion system the liquid transfer circuit is closed, air-free, controllably pressurized, thermally insulated and shock- proof. Liquid transfer in the system is not affected by the position of the patient's limb or body or external disturbance factors. An injured or disabled patient using the apparatus can move and operate freely. A smaller number of medical personnel than in the prior art will be required thus offering cost savings. The apparatus is equally well suited for civilian and military use. The invention facilitates reliable infusion at a sufficiently early stage and with a relatively constant infusion liquid temperature, which is crucial to the prognosis of the patient. The apparatus can be employed both under the field conditions of military use and in civilian applications.
In an embodiment of the invention the protective bag comprises at least two cover parts which are attached hingedly and lockably to each other. The cover parts are appropriately shaped to fit about, e.g. , either upper limb. The protective bag is easy to attach to the limb and it stays reliably in place after fitting.
The infusion apparatus according to the invention has the liquid pouch advantageously positioned to the inside of a inflatable cuff acting as a pressurizing means, whereby the inner outside surface of the cuff is placed - against the patient's limb. As the inflatable cuffs are positioned to both sides of the limb, the cuffs become fixed to the limb by the applied pressure, whereby the protective bag stays fixed relative to the limb.
In an advantageous modified embodiment of the invention the protective bag is provided with a handle which acts as a carrying handle. By virtue of the carrying handle the patient can him/herself support the protective bag and the apparatus enclosed therein.
In a second modified embodiment of the invention, the end of the protective bag is provided with a support strap harness for fixing and supporting the protective bag to the body, advantageously to the shoulder of the limb opposite to that being infused. This arrangement equalizes the weight imposed on the upper limb and lightens the carrying of the apparatus by the patient.
In the following, the invention will be examined in more detail with reference to the attached drawing, in which:
Figure 1 is a side view of an infusion apparatus according to the invention fixed to the patient's upper limb;
Figure 2 is a cross-sectional view of the infusion apparatus illustrated in Fig. 1; Figure 3 is a top view of the apparatus illustrated in
Fig. 1: Figure 4 is a side view of the apparatus illustrated in
Fig. 1: Figure 5 is a diagrammatic representation of an embodiment of the liquid transfer circuit of an apparatus according to the invention; and Figure 6 is a diagrammatic representation of an embodiment of the pressurization circuit of an apparatus according to the invention.
With reference to the embodiment shown in the diagrams, the infusion apparatus comprises a protective bag 7. housing two liquid pouches 1, a means 2 for transferring the liquid from the pouch to the patient, a pressurizing means 4 and a pressure control circuit 5. The protective bag comprises two cover parts having hinges 9 mounted to their one sides and locking means 10 to their other sides. To the interior surface of the protective bag is attached a thermal insulation layer 6. Both ends of the protective bag are provided with holes to accommodate the patient's limb and the holes are provided with paddings. Furthermore, the end of the protective bag is provided with a handle 8. A tubing with attached infusion cannula are provided for connection to the liquid pouch 2.
All equipment required for liquid transfer are housed inside the protective bag, and only the indicators, sensors, valves and the control elements for adjusting the operation of the infusion apparatus are accessible from the exterior of the infusion apparatus. With reference to Figs. 2 and 5, the liquid pouches 1 are placed to the opposite sides of the limb 11, to both sides of the protective bag. The liquid pouches are positioned to the inside of the inflatable cuff serving as a pressurizing means 4, and the inner exterior surface of the inflatable cuff is adapted against the patient's limb. Compressed air introduced into the inflatable cuffs expands the cuff inward relative to its outside, thus forcing the liquid distally forward along the tubing. The compressed-air container 12 is in the illus¬ trated embodiment adapted along the longer side of the protective bag (as drafted by dashed lines in Fig. 2).
With reference to Fig. 3, the elements mounted on the protective bag cover are illustrated and the elements are the same as those in the operation diagram of pressure circuit shown in Fig. 6. These elements comprise a fill valve 13 of the compressed-air container, a pressure gage 14 for the compressed-air container pressure, a pressure- regulating valve and flow indicator 15, a pressure shutoff valve 16, a pressure relief valve 17, a pressure gage 18 for cuff pressure, a thermometer 19 for bag interior"temperature indication and a valve 20 for external control of the infusion flow rate. With the help of these elements the function of the apparatus can be monitored and controlled accurately. The pressure-regulating valve 15 has adjustment limits for the cuff pressure and a flow indicator for indicating the end of the compressed air flow when the inflatable cuffs become fully expanded and the liquid pouches are empty. The shutoff valve 16 serves for controlling the compressed air flow from pressure circuit to the inflatable cuffs. Any possible overpressure can escape from the pressure circuit via the pressure-relief valve 17, and the valve also serves for releasing the pressure from the inflatable cuffs. The pressure gage 18 for the inflatable cuff pressure serves for the monitoring of the inflation pressure in the cuffs. The thermometer 19 indicates the internal temperature of the protective bag.
When using the apparatus and starting the infusion, the protective bag 7 is opened and the limb 11 of the patient is placed in the trough of the protective bag. The intravenous cannula is inserted in the vein. The tubing of the infusion liquid pouches 1 is connected to a T-connector, the T- connector is turned to open position, the remaining small volume or air is expelled by pressing the pouch and the end of the tubing leaving the T-connector is blocked. Next, the tubing is connected to the intravenous cannula, the blocking clip is removed from the tubing and the protective bag is closed. The shutoff valve 16 is opened, compressed air is released from the compressed-air container 12 to the inflatable cuffs 4 and the cuff pressure is set to desired level by the pressure-regulating valve 15. Hereinafter, the T-connector is used for controlling the liquid transfer operation. The pressure-regulating valve 15 alerts the user by a visual signal or other manner at the end of the compressed-air flow that the liquid pouch is empty, without any need for opening the protective bag. The system is practically fail-safe against entry of air to the patient's circulation.
Under extremely cold conditions the interior of the bag can be provided with, e.g., chemical heater elements to keep the liquids warm, and a heater element may be additionally placed between the inflatable cuff and the liquid pouch for the duration of the infusion.
For those versed in the art it is obvious that the invention is not limited by the advantageous embodiment described above, but rather, can be varied within the scope of the inventive spirit disclosed in the annexed claims. The shape, design and materials of the protective bag may be varied in a desired manner suited to the different embodiments of the invention.

Claims

1. An infusion apparatus for transferring liquid to a patient, said infusion apparatus comprising at least one liquid pouch (1), a means (2) attached to said liquid pouch for transferring the liquid from the liquid pouch (1) to a patient (3), a pressurizing means (4) adapted adjacent to the liquid pouch for compressing the liquid pouch, and a pressure control circuit (5) for said pressurizing means c h a r a c t e r i z e d in that the infusion apparatus comprises a thermally insulated (6) protective bag (7) shaped to fit about the patient's limb and suited to accommodate the liquid pouch or pouches (1), the liquid transfer means (2), the liquid pressurizing means (4) and the pressure control circuit (5).
2. An apparatus as defined in claim 1, c h a r a c t e r ¬ i z e d in that the protective bag (7) comprises at least two cover parts which are attached hingedly and lockably to each other.
3. An apparatus as defined in claim l or 2, c h a r a c ¬ t e r i z e d in that the liquid pouch (1) is positioned to the inside of a inflatable cuff acting as a pressurizing means (4), whereby the inner outside surface of the cuff is placed against the patient's limb.
4. An apparatus as defined in any of claims 1-3, c h a r a c t e r i z e d in that the protective bag is provided with a handle (8) acting as a carrying handle.
5. An apparatus as defined in any of claims 1-4, c h a r ¬ a c t e r i z e d in that the protective bag is provided with a support strap harness for fixing and supporting the protective bag to the body, advantageously to the shoulder of the limb opposite to that being infused.
PCT/FI1994/000218 1993-06-21 1994-05-30 Infusion apparatus for transferring liquid to a patient Ceased WO1995000191A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67982/94A AU6798294A (en) 1993-06-21 1994-05-30 Infusion apparatus for transferring liquid to a patient

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI932858A FI92150C (en) 1993-06-21 1993-06-21 Infusion device for delivery of fluid to patient
FI932858 1993-06-21

Publications (1)

Publication Number Publication Date
WO1995000191A1 true WO1995000191A1 (en) 1995-01-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1994/000218 Ceased WO1995000191A1 (en) 1993-06-21 1994-05-30 Infusion apparatus for transferring liquid to a patient

Country Status (3)

Country Link
AU (1) AU6798294A (en)
FI (1) FI92150C (en)
WO (1) WO1995000191A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1051987A3 (en) * 1999-05-10 2001-01-31 Medico's Hirata Inc. Automatic control-type, portable instillation apparatus
EP1201257A1 (en) * 2000-10-18 2002-05-02 Anders Magnusson Method and device for keeping infusion fluids warm
WO2021007490A1 (en) * 2019-07-11 2021-01-14 Jamal Aamir Zain Infusion unit
US20230191022A1 (en) * 2019-07-11 2023-06-22 Aamir Zain Jamal Infusion Unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4673392A (en) * 1984-10-02 1987-06-16 Keime Bernard M Portable self-contained injector for perfusions, particularly in the case of road accident victims
WO1992007596A1 (en) * 1990-11-05 1992-05-14 Philip Jonathan Foster Cooper Pressure infusion apparatus for an ambulatory patient

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4673392A (en) * 1984-10-02 1987-06-16 Keime Bernard M Portable self-contained injector for perfusions, particularly in the case of road accident victims
WO1992007596A1 (en) * 1990-11-05 1992-05-14 Philip Jonathan Foster Cooper Pressure infusion apparatus for an ambulatory patient

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1051987A3 (en) * 1999-05-10 2001-01-31 Medico's Hirata Inc. Automatic control-type, portable instillation apparatus
US6558346B1 (en) 1999-05-10 2003-05-06 Medico's Hirata Inc. Automatic control-type, portable intravenous infusion apparatus and jacket therefor
EP1201257A1 (en) * 2000-10-18 2002-05-02 Anders Magnusson Method and device for keeping infusion fluids warm
WO2021007490A1 (en) * 2019-07-11 2021-01-14 Jamal Aamir Zain Infusion unit
US11364339B2 (en) 2019-07-11 2022-06-21 Aamir Zain Jamal Infusion unit
CN114867508A (en) * 2019-07-11 2022-08-05 阿米尔·扎因·贾马尔 Infusion unit
US20230191022A1 (en) * 2019-07-11 2023-06-22 Aamir Zain Jamal Infusion Unit
EP3996775A4 (en) * 2019-07-11 2023-07-19 Jamal, Aamir, Zain Infusion unit
CN114867508B (en) * 2019-07-11 2024-05-24 阿米尔·扎因·贾马尔 Infusion Unit

Also Published As

Publication number Publication date
FI92150B (en) 1994-06-30
AU6798294A (en) 1995-01-17
FI92150C (en) 1994-10-10
FI932858A0 (en) 1993-06-21

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