WO2002081009A2 - Injektionseinrichtung - Google Patents
Injektionseinrichtung Download PDFInfo
- Publication number
- WO2002081009A2 WO2002081009A2 PCT/DE2002/001216 DE0201216W WO02081009A2 WO 2002081009 A2 WO2002081009 A2 WO 2002081009A2 DE 0201216 W DE0201216 W DE 0201216W WO 02081009 A2 WO02081009 A2 WO 02081009A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydraulic
- injection device
- pneumatic
- chamber
- injection
- 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
- A61M5/178—Syringes
- A61M5/30—Syringes for injection by jet action, without needle, e.g. for use with replaceable ampoules or carpules
-
- 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
- A61M5/178—Syringes
- A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
- A61M5/2053—Media being expelled from injector by pressurised fluid or vacuum
-
- 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
- A61M5/178—Syringes
- A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31546—Electrically operated dose setting, e.g. input via touch screen or plus/minus buttons
Definitions
- the invention relates to an injection device for injecting a medium into the tissue of a human or an animal with a chamber for receiving the medium to be injected, with a hand-held device which has an opening connected to the chamber and intended to be placed on the skin, with a hydraulic device and / or a pneumatic device for reducing the volume of the chamber and for generating a pressure jet emerging from the opening of the medium to be injected, the station being connected to the hand-held device via a line transmitting forces from the pneumatic device and / or the hydraulic device.
- Such an injection device is known for example from US 3,424,154.
- the hydraulic device is connected to a compressed air network and connected to the handheld device.
- the hydraulic device thus serves to transmit forces to the chamber in order to eject the medium to be injected from the opening.
- the hydraulic device has a throttle for regulating the intensity of the high-pressure jet.
- This known injection device makes it particularly easy to inject various drugs or anesthetics into the tissue without using a needle.
- the injection device has to be refilled each time the medicament or anesthetic is administered. This leads to a time-consuming administration of the, especially when administering several small amounts of anesthetic in the mouth area total amount to be injected.
- the control of the injection by the high pressure jet is insufficient because, depending on the people and the local tissue, a different number of injections and different amounts are required for each injection.
- No. 4,059,107 shows a handpiece that can be connected to a hydraulic device, with a storage container for a medicament and a piston that can be moved by the hydraulic device against the force of a spring.
- the hydraulic device When the hydraulic device is actuated, the piston is moved against the force of the spring and the medicament is transferred from the storage container into the chamber.
- a check valve prevents the hydraulic fluid from flowing back.
- a valve can be activated and the hydraulic fluid can be drained.
- a piston delimiting the chamber is pressed into the chamber by the force of the spring, so that the medium to be injected is expelled from the opening as a high-pressure jet. This enables the medium to be injected to be loaded and ejected alternately.
- the handling of the injection device is very uncomfortable.
- the chamber can only be completely filled or emptied.
- the injection is carried out in two stages with different intensities. Moving the injection device between the individual stages of the injection to another location on the tissue is not possible with this injection device.
- the injection device cannot be set to the intended number of injections and different amounts.
- the chamber is delimited by a piston.
- One by a feather The pressure piece biased in the direction of the piston is held by a trigger which can be actuated by hand.
- the trigger When the trigger is pressed, the pressure piece is moved against the piston by the force of the spring and the chamber is reduced in size.
- the medium to be injected enters the subcutaneous tissue of humans or animals as a pressure jet. In the case of several injections, however, this injection device must in each case be charged and tensioned with the intended amount of the medium to be injected.
- the invention is based on the problem of designing an injection device of the type mentioned at the outset in such a way that it can be used to carry out several partial injections of the medium to be injected at different points in the tissue in a particularly convenient manner.
- an electronic control is connected to the hydraulic device and / or the pneumatic device and in that the electronic control for controlling the hydraulic device and / or the pneumatic device is designed in intended sub-steps to generate a plurality of individual, successive pressure jets.
- This design makes it easy to set the number and amount of individual partial injections. After each injection, the chamber with the opening can be placed on another part of the tissue and thus, for example in dentistry, anesthetize an intended area of the tissue. As a result, the intended amount of the medium to be injected, composed of several subsets, can be administered particularly conveniently. In particular, anesthesia in dentistry leads to a particularly short expenditure of time thanks to the invention. Since the electronic control acts on the hydraulic device or the pneumatic device, the component having the chamber and the opening can be made particularly compact and handy.
- the sub-steps in which the chamber is reduced by the hydraulic device can be according to one set another advantageous development of the invention particularly precisely if the hydraulic device has a force transmission element which directly or indirectly limits the volume of the chamber and if an adjustable stop is designed to limit the path of a master piston of a master cylinder of the hydraulic device. With this design, the pressure jet generated can be stopped immediately if the movement of the master piston is limited by the stop.
- the force transmission element is structurally particularly simple if the force transmission element has a slave piston of a slave cylinder and a piston protruding into the chamber or is in contact with a piston that delimits the volume of the chamber.
- a high pressure in the hydraulic device can be easily avoided if the piston protruding into the chamber has a smaller diameter than the slave piston of the hydraulic device.
- the injection device according to the invention can be operated particularly conveniently if the chamber for receiving the medium to be injected is arranged in a hand-held device connected to the master cylinder of the hydraulic device via a hydraulic line.
- the chamber could have the opening and be connected, for example, to the hand-held device.
- the ampoules of the known injection device could continue to be used.
- the hand-held device can be operated with commercially available and therefore inexpensive standard ampoules for injection devices with a needle, if the chamber is connected via a channel to the opening arranged at the free end of the hand-held device.
- the channel can be angled so that even hard-to-reach areas in the mouth area can be reached.
- the hydraulic device could, for example, have a pressure accumulator and an electrically operated hydraulic pump for filling the pressure accumulator.
- the injection device according to the invention is particularly cost-effective if a master piston of the hydraulic device is connected to a slave piston of the pneumatic device and if the diameter of the slave piston of the pneumatic device is larger than the diameter of the master piston of the hydraulic device. In this way, an intended high pressure in the hydraulic device can be easily generated via a compressed air connection with a low pressure that is already present on a dentist's chair.
- the master piston of the hydraulic device can be moved into its intended position against the stop when a hydraulic valve is connected to the hydraulic line and to a reservoir for hydraulic fluid.
- a gradual movement of the slave piston of the hydraulic device requires a particularly low construction effort if the hydraulic valve is designed to alternately connect the hand-held device or the storage container to the master cylinder.
- the master piston of the hydraulic device connected to the slave piston of the pneumatic device can be readjusted Simply move each pressure pulse back to its starting position when the slave piston of the pneumatic device can be pressurized in both directions of movement by means of a pneumatic valve.
- the slave piston of the pneumatic device is prestressed in one direction and can be pressurized in the other direction by means of a pneumatic valve.
- the escape of medium to be injected from the opening before the intended pressure is built up in the chamber can be easily avoided if a check valve is arranged in the channel leading to the opening.
- the handheld device has a base body for connecting the hydraulic line and one with the base body has detachably connectable head with the opening.
- the head can be, for example, the known ampoule from the injection device described in WO 98/15307 or a housing for receiving an ampoule known from the injection device with a needle.
- the head can also contain a refillable chamber that can be opened before use.
- contamination of the medium to be injected can easily be avoided if the head has a spike Piercing a protective sheath of an ampoule containing the medium to be injected.
- Throttling areas between the chamber and the opening can easily be avoided according to another advantageous development of the invention if the mandrel is a hollow needle connected to the opening.
- Air in the chamber and between the opening and the chamber can be removed particularly quickly before the injection, according to another advantageous development of the invention, if the hydraulic device or the pneumatic device has a throttle for regulating the rate at which the chamber is reduced.
- the pneumatic valve is preferably designed as a throttle.
- the injection device according to the invention is particularly compact if the hydraulic valve, the pneumatic valve, the reservoir and the master cylinder of the hydraulic device are arranged with the slave cylinder of the pneumatic device in a ground station.
- the hand-held device has a switch for actuating the pneumatic valve and / or the hydraulic valve.
- the injection device according to the invention has particularly few components to be installed if an electronic control for detecting the position of the switch and for controlling the pneumatic valve and / or the hydraulic valve is arranged in the ground station.
- the number and size of the partial steps in the Verrin ⁇ delay of the volume and the pressure in the Hydraulikein- Direction can be easily set according to another advantageous development of the invention if the electronic control is connected to an input field for entering the pressure provided in the hydraulic device and / or the position of the stop.
- the setting of the pressure of the pressure jet generated by the injection device according to the invention requires a particularly low construction effort if the pneumatic valve has a pressure characteristic curve which is dependent on the signals of the electronic control.
- the partial steps provided can be easily adjusted by means of an adjusting element which can be adjusted via a thread for adjusting the stop.
- the adjusting element can be, for example, an adjusting screw or an adjusting nut.
- the actuating element is preferably arranged on a pressure transducer between the hydraulic device and the pneumatic device.
- the injection device contributes to adjusting the stop by means of a stepper motor controlled by the electronic control.
- Adjustable stops for limiting the individual pressure jets generated with the injection device according to the invention can be avoided in the simplest case if a reservoir for hydraulic fluid is connected to the other areas of the hydraulic device via a metering device connected to the electronic control. Thereby, the Hydraulikeinrich ⁇ is tung exactly the amount of hydraulic fluid supplied that is required for the next printing beam.
- the metering device requires a particularly low design effort and can be controlled particularly easily if the metering device has a metering pump controlled by a stepper motor.
- FIG. 1 shows a circuit diagram of an injection device according to the invention
- FIG. 2 shows a schematic longitudinal section through a hand-held device of the injection device from FIG. 1,
- FIG. 3 shows a sectional view through a partial area of a pressure transducer with a stop
- FIG. 4 shows a circuit diagram of a further embodiment of the injection device according to the invention.
- FIG. 1 shows a circuit diagram and signal flow diagram of an injection device for the needleless injection of a medium into the tissue of a human or animal.
- the injection device has a base station 1 and a hand-held device 3 connected to it via a hydraulic line 2.
- a pneumatic device 4 and a hydraulic device 5 are arranged on the base station 1.
- the pneumatic device 4 has a pneumatic connection 6 with a controllable pressure control valve for connecting the injection device to a compressed air network, not shown, and a double-acting slave cylinder 7. Impact of the slave cylinder 7 with compressed air is controlled via a pneumatic valve 8 designed as a 5/3 way valve. Compressed air passes from the pneumatic valve 8 to a pressure transducer 9 with the slave cylinder 7 and a master cylinder 10 of the hydraulic device 5.
- a slave piston 11 can be driven in the slave cylinder 7 in the intended direction.
- a master piston 12 of the hydraulic device 5 is made in one piece with the slave piston 11 of the pneumatic device 4.
- the movement of the slave piston 11 of the pneumatic device 4 and thus of the master piston 12 of the hydraulic device 5 can be limited by means of a stop 14 which can be displaced by a stepper motor 13.
- the master cylinder 10 is connected to a hydraulic valve 15 designed as a 3/2 way valve.
- the hydraulic valve 15 connects the master cylinder 10 either to the handheld device 3 or to a reservoir 16 for hydraulic fluid.
- the hand-held device 3 has a slave cylinder 17 of the hydraulic device 5 and a chamber 18 for a medium to be injected.
- An opening 19 is arranged at the free end of the hand-held device 3. With this end, the handheld device 3 is pressed onto the skin of humans or animals.
- the injection device is activated, for example by actuating a switch 20, the medium is expelled from the chamber 18 through the opening 19 in the form of a pressure jet.
- the pressure force from the hydraulic device 5 is transmitted from the slave piston 11 to a force transmission element 22 having a piston 21 protruding into the chamber 18.
- a slave piston 23 of the hydraulic device 5 has a larger diameter than the piston 21 that can be moved into the chamber.
- the pressure in the chamber 18 can be determined when the injection device is activated at a predetermined pressure in the hydraulic line 2.
- the slave piston 23 of the hydraulic device 5 is biased in the direction of the master cylinder 10 by means of a spring 24.
- the slave piston 11 of the pneumatic device 4 has a larger diameter than the master piston 12 of the hydraulic device 5.
- the pneumatic valve 8, the stepper motor 13, the hydraulic valve 15 and the switch 20 as well as the controllable pressure control valve in the connection 6 are connected to an electronic control 25.
- the electronic control 25 can be programmed via an input field 26.
- FIG 2 shows a sectional view through the handheld device 3 from Figure 1 in longitudinal section.
- the hand-held device 3 has a base body 27 and a head 28 connected to the base body 27.
- the connection can have, for example, a bayonet lock (not shown) or a thread.
- a commercial ampoule 29 with a medium to be injected is inserted into the base body 27.
- the ampoule 29 has a rubber closure 30 on its side facing away from the piston 21.
- the force transmission element 22 connected to the slave piston of the hydraulic device is supported on the piston 21.
- the medium to be injected can, for example, be an anesthetic.
- the rubber closure 30 is pierced by a mandrel 31 designed as a hollow needle.
- the medium to be injected arrives at a check valve 32 arranged in the head 28.
- the check valve 32 opens above half of an intended pressure.
- the medium to be injected can pass through a channel 33 to the opening 19 arranged at the free end of the head 28.
- the head 28 is shown angled here. Of course, the head 28 can also be straight.
- an ampoule known from WO 98/15307 can be used and placed on the base body 27.
- FIG. 3 shows a sectional view through a partial area of the pressure transducer 9 from FIG. 1 formed from the master cylinder 10 of the hydraulic device 5 and slave cylinder 7 of the pneumatic device 4. It can be seen here that the stop 14 is arranged on an impact bolt 34.
- the impact bolt 34 can be displaced by a deflection bolt 35 in the direction of the slave piston 11 of the pneumatic device 4.
- the stepper motor 13 for driving the stop 14 drives an adjusting ring 36 which is arranged on the pressure transducer 9 and lies on the deflecting bolt 35 with an inclined plane.
- the ampoule 29 can be emptied in partial steps in which a plurality of pressure jets are generated at the opening 19 one after the other by first moving the slave piston 11 of the pneumatic device 4 from FIG. 1 to the left as far as the housing stop 37.
- the hydraulic valve is switched so that the master cylinder 10 is connected to the reservoir 16.
- hydraulic fluid flows from the reservoir 16 to the master cylinder 10.
- the hydraulic valve 15 is then switched over, so that the master cylinder 10 of the hydraulic device 5 is connected to the slave cylinder 17 in the handheld device 3.
- the pneumatic valve 8 can now be switched so that the slave piston 11 is shifted to the right up to the set stop 14.
- the master cylinder 10 of the hydraulic device 5 is also moved to the right and thus the slave piston 23 of the hydraulic device 5 in the direction of the piston 21 of the ampoule 29.
- a pressure jet of the medium to be injected is ejected from the opening 19.
- the hydraulic valve 15 is switched over again and the slave piston 11 of the pneumatic device 4 is shifted to the left. The further apart the displaceable stop 14 and the fixed housing stop 37 in the slave cylinder 7 of the pneumatic device 4, the greater the amount of the medium to be injected, which is expelled with each pressure jet.
- the spring 24 serves to overcome the friction of the slave piston 23 of the hydraulic device 5 if, after the injection has been completed, the pneumatic device 4 and the hydraulic device 5 are actuated in the opposite manner as described above in order to suck the hydraulic fluid out of the slave cylinder 17.
- FIG. 4 shows a circuit diagram of a further embodiment of the injection device.
- This injection device differs from that of FIG. 1 primarily in that a pneumatic valve 108 is designed as a 3/2 way valve and a hydraulic valve 115 as a 2/2 way valve.
- Corresponding reference numerals of components of the embodiments according to FIGS. 1 and 4 are increased by the number 100 in FIG. Identical components of the embodiments according to FIGS. 1 and 4 are provided with the same reference symbols.
- the hydraulic device 105 has two non-return valves 138, 139.
- a non-return valve 138 enables hydraulic fluid to flow from the reservoir 16 into the master cylinder 10.
- the other non-return valve 139 enables the hydraulic fluid to flow from the master cylinder 10 into the handheld device 3 during the injection.
- the back Check valve 139 preferably has a high opening pressure of, for example, 5 to 7 bar, while check valve 138 has a low opening pressure.
- the pressure transducer 109 has a one-sided slave cylinder 107 of the pneumatic device 104.
- the reservoir 116 for hydraulic fluid is designed as a pressure accumulator and is connected to the other areas of the hydraulic device 105 via a metering device 140.
- the metering device 140 has a metering pump 142 that can be controlled by a stepper motor 141.
- the stepper motor 141 is controlled by the electronic control 25.
- the amount of hydraulic fluid flowing between the pressure converter 109 and the hand-held device 3 can be metered exactly.
- the stop 14 in the pressure transducer 109 therefore only serves as an end stop.
- the stop 14 arranged in the pressure converter 109 and adjustable by the stepping motor 13 can be dispensed with.
- the master piston 12 is moved to the right against the stop 14.
- the amount of hydraulic fluid corresponding to the next partial jet is conveyed out of the reservoir 116 to the pressure transducer 109 via the stepper motor 141 of the metering device 140 while simultaneously moving the master piston 12 to the left.
- the check valve 139 is closed.
- the next partial beam can thus be generated without adjusting the stop 14 when the master piston 12 moves to the right. Otherwise, the control of the injection device is as described for FIG. 1.
- FIGS. 1 and 4 can be connected to the hand-held device known from US Pat. No. 4,059,107.
- the spring of the handheld device would be be draulic device tensioned and the force for the high pressure jet generated by the spring element in the handheld device.
- the electronic control 25 serves to adjust the number of times the chamber having the opening is reloaded in the hand-held device and / or the amount that is to be conveyed into the chamber during each reloading process.
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10291430T DE10291430D2 (de) | 2001-04-04 | 2002-04-04 | Injektionseinrichtung |
AU2002257551A AU2002257551A1 (en) | 2001-04-04 | 2002-04-04 | Injection device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001116778 DE10116778A1 (de) | 2001-04-04 | 2001-04-04 | Injektionseinrichtung |
DE10116778.4 | 2001-04-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002081009A2 true WO2002081009A2 (de) | 2002-10-17 |
WO2002081009A3 WO2002081009A3 (de) | 2002-12-12 |
Family
ID=7680358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/001216 WO2002081009A2 (de) | 2001-04-04 | 2002-04-04 | Injektionseinrichtung |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002257551A1 (de) |
DE (2) | DE10116778A1 (de) |
WO (1) | WO2002081009A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004023235A1 (de) * | 2004-02-03 | 2005-09-01 | Mansouri, Said, Dr.med.dent. | Anästhesiespritze |
US7717879B2 (en) | 2004-02-03 | 2010-05-18 | Smjm Inject Gmbh | Anesthetic syringe |
WO2010057473A3 (de) * | 2008-11-19 | 2010-07-15 | B. Braun Melsungen Ag | Anästhesiespritze mit einem längsverschieblichen vorschubkolben sowie rückschlagventil mit durchlass und sperrrichtung |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8535268B2 (en) | 2010-12-22 | 2013-09-17 | Alcon Research, Ltd. | Device for at least one of injection or aspiration |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3189029A (en) * | 1960-08-04 | 1965-06-15 | Amalgamated Dental Co Ltd | Hypodermic injection apparatus |
US3424154A (en) * | 1965-11-08 | 1969-01-28 | Charles W Kinsley | Injection system |
EP0347190A1 (de) * | 1988-06-14 | 1989-12-20 | Vci Corporation | Nadellose Vakuum-Druck-Spritze |
US5116313A (en) * | 1989-08-31 | 1992-05-26 | Her Majesty The Queen In Right Of Canada, As Represented By The National Research Council | Variable intensity remote controlled needleless injectors |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3292621A (en) * | 1963-07-19 | 1966-12-20 | Oscar H Banker | Jet type protable inoculator |
US3827601A (en) * | 1973-03-23 | 1974-08-06 | J Magrath | Hand powered liquid dispenser of the metering type |
JPS51130094A (en) * | 1975-05-08 | 1976-11-12 | Asahi Chemical Ind | Twoostage pressure injector |
DE19939023A1 (de) * | 1999-08-18 | 2001-02-22 | Disetronic Licensing Ag | Vorrichtung zur Verabreichung eines injizierbaren Produkts |
WO1992010226A1 (en) * | 1990-12-07 | 1992-06-25 | Sy-Quest International Limited | Jet injector for mass inoculation |
AU641206B2 (en) * | 1991-01-22 | 1993-09-16 | Eli Lilly And Company | Multiple dose injection pen |
SE9103215D0 (sv) * | 1991-11-04 | 1991-11-04 | Kabi Pharmacia Ab | A method and device for dosing a liquid preparation |
SE9303484D0 (sv) * | 1993-10-22 | 1993-10-22 | Siemens Elema Ab | Förfarande och anordning för mätning av flödesmotståndet hos en kateter vid ett implanterat infusionssystem för läkemedel |
DE19607922C2 (de) * | 1996-03-01 | 1998-01-29 | Grund Karl Ernst Prof | Vorrichtung zum endoskopischen Injizieren mindestens einer Flüssigkeit |
US6063054A (en) * | 1998-05-13 | 2000-05-16 | Mark L. Anderson | Injector pump |
-
2001
- 2001-04-04 DE DE2001116778 patent/DE10116778A1/de not_active Withdrawn
-
2002
- 2002-04-04 WO PCT/DE2002/001216 patent/WO2002081009A2/de not_active Application Discontinuation
- 2002-04-04 AU AU2002257551A patent/AU2002257551A1/en not_active Abandoned
- 2002-04-04 DE DE10291430T patent/DE10291430D2/de not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3189029A (en) * | 1960-08-04 | 1965-06-15 | Amalgamated Dental Co Ltd | Hypodermic injection apparatus |
US3424154A (en) * | 1965-11-08 | 1969-01-28 | Charles W Kinsley | Injection system |
EP0347190A1 (de) * | 1988-06-14 | 1989-12-20 | Vci Corporation | Nadellose Vakuum-Druck-Spritze |
US5116313A (en) * | 1989-08-31 | 1992-05-26 | Her Majesty The Queen In Right Of Canada, As Represented By The National Research Council | Variable intensity remote controlled needleless injectors |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004023235A1 (de) * | 2004-02-03 | 2005-09-01 | Mansouri, Said, Dr.med.dent. | Anästhesiespritze |
US7717879B2 (en) | 2004-02-03 | 2010-05-18 | Smjm Inject Gmbh | Anesthetic syringe |
WO2010057473A3 (de) * | 2008-11-19 | 2010-07-15 | B. Braun Melsungen Ag | Anästhesiespritze mit einem längsverschieblichen vorschubkolben sowie rückschlagventil mit durchlass und sperrrichtung |
US8574196B2 (en) | 2008-11-19 | 2013-11-05 | Smjm Inject Gmbh | Anesthetic syringe having a longitudinally displaceable feeding piston and check valve having passage and blocking device |
Also Published As
Publication number | Publication date |
---|---|
AU2002257551A1 (en) | 2002-10-21 |
DE10116778A1 (de) | 2002-10-17 |
DE10291430D2 (de) | 2004-04-15 |
WO2002081009A3 (de) | 2002-12-12 |
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