EP1513572A1 - Dispositif pour l'injection sans aiguille d'une substance dans un tissu d'un etre humain ou d'un animal, dispositif pour creer sans aiguille un canal d'injection et procede pour l'injection d'une substance dans ledit tissu - Google Patents

Dispositif pour l'injection sans aiguille d'une substance dans un tissu d'un etre humain ou d'un animal, dispositif pour creer sans aiguille un canal d'injection et procede pour l'injection d'une substance dans ledit tissu

Info

Publication number
EP1513572A1
EP1513572A1 EP03759857A EP03759857A EP1513572A1 EP 1513572 A1 EP1513572 A1 EP 1513572A1 EP 03759857 A EP03759857 A EP 03759857A EP 03759857 A EP03759857 A EP 03759857A EP 1513572 A1 EP1513572 A1 EP 1513572A1
Authority
EP
European Patent Office
Prior art keywords
injection
medium
pressure
chamber
injection device
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.)
Withdrawn
Application number
EP03759857A
Other languages
German (de)
English (en)
Inventor
Peter Eichhorst
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.)
Primojex GmbH
Original Assignee
Primojex GmbH
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 Primojex GmbH filed Critical Primojex GmbH
Publication of EP1513572A1 publication Critical patent/EP1513572A1/fr
Withdrawn legal-status Critical Current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
    • A61M5/178—Syringes
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M5/204—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically connected to external reservoirs for multiple refilling
    • 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
    • A61M2005/2086—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically having piston damping means, e.g. axially or rotationally acting retarders

Definitions

  • Device for the needleless injection of a medium into the tissue of a human or animal device for the needleless creation of an injection channel and method for the needleless injection of a
  • the invention relates to a device for the needleless injection of a medium into the tissue of a human or animal. Furthermore, the invention relates to a device for the needleless creation of an injection channel in the tissue of a human or animal for guiding a medium to be injected into the tissue. The invention further relates to a method for the needleless injection of a medium into the tissue of a human or animal.
  • Needle-free injection devices are known from WO 98/15307 and WO 01/36028, in which the medium to be injected is brought into the tissue as a high-pressure jet.
  • the medium to be injected creates its injection channel in the tissue itself.
  • the needleless injection device has the advantage that no needle is required for the injection.
  • a disadvantage of the needleless injection device is that the amount of the medium to be injected is limited to approximately 0.4 to 0.5 ml by the absorption capacity of the tissue for such an amount injected by high pressure jet in a short time.
  • needleless injection of high dose media increases the risk of not delivering the entire dose to its destination.
  • Larger quantities to be injected by means of a pressure jet require higher pressure forces, which increases the risk of local tissue damage and thus an increased sensation of pain.
  • the molecular structure of the medium can be damaged by pressure surges occurring in the needleless injection device.
  • a structural unit comprising a storage chamber and a needleless injection device is also known from WO 01/64268.
  • the storage chamber and a pump chamber of the needleless injection device are connected to one another via a hollow piston.
  • the hollow piston has a valve at its end projecting into the pump chamber.
  • the valve closes and the quantity of the medium to be injected in the pump chamber is injected into the tissue.
  • the injection channel is created in the tissue.
  • the amount of the medium to be injected is narrowly limited to 0.4 to 0.5 ml, since the injection of a larger amount to be injected using a high-pressure jet can lead to tissue damage.
  • the injection device After the injection device has been triggered, it can be tensioned again by moving the hollow piston out of the pressure generating device against the spring force. In the process, the medium to be injected reaches the pump chamber from the storage chamber. The next injection can then be started. Therefore, this injection device for the injection of several ml has to be tensioned very often and reattached to the skin. However, this also leads to increased pain sensation and skin irritation.
  • syringes for injection for example of drugs or anesthetics in larger volumes than, for example, 0.5 ml, in tissue have a hollow needle which is inserted through the skin into the tissue. The hollow needle thus creates the injection channel in the tissue. Then the medium to be injected pressed into the tissue by the hollow needle.
  • These syringes have the advantage that large quantities of the medium to be injected can be introduced into the tissue gently at a low volume flow over a planned period of time and media with pressure-sensitive molecular structure can be used. Large quantities of several ml, for example, can be introduced easily with the known syringes by light manual pressure on the syringe plunger.
  • a disadvantage of such syringes is that many patients describe piercing the skin with a needle as painful or annoying.
  • the use of the needle increases the risk of infection for the injected organism and the user.
  • the invention is based on the problem of developing a device of the type mentioned at the outset in such a way that a larger amount of, for example, several ml can be injected into the tissue without need. Furthermore, a device is to be created with which an injection channel in the tissue can be created without needles for a subsequent injection of a medium to be injected. Furthermore, a method is to be created with which several ml of a medium to be injected can be injected into the tissue without a needle and without repeated attachment.
  • the first-mentioned problem is solved according to the invention by a needleless pre-injection device for generating a high-pressure jet of a pre-injection medium for creating an injection channel by means of a high pressure and small volume, and by a main injection device for introducing the medium to be injected in comparison to the volume and pressure of the pre-injection device large volume and low pressure.
  • a needleless pre-injection device for generating a high-pressure jet of a pre-injection medium for creating an injection channel by means of a high pressure and small volume
  • a main injection device for introducing the medium to be injected in comparison to the volume and pressure of the pre-injection device large volume and low pressure.
  • the invention it is not necessary to bring the entire amount of the medium to be injected into the tissue as a high-pressure jet, but rather only a very small amount required for the generation of the high-pressure jet. This protects the tissue, which means that a large amount of the medium to be injected can be introduced into the tissue through the injection channel generated by the high-pressure jet and distributed in the tissue.
  • either a physiologically harmless liquid or pressure-insensitive anesthetics for anesthetizing the tissue can be used as the pre-injection medium, and a medicament with a pressure-sensitive molecular structure can be used as the medium to be injected.
  • the device according to the invention has its own chamber for the pre-injection device and for the main injection device. Until now, drugs with a pressure-sensitive molecular structure could not be injected without need because they are destroyed when the high-pressure jet is generated.
  • the medium to be injected has a pressure-stable molecular structure, it can of course also be used simultaneously as a pre-ection medium. This has the advantage that only one medium has to be injected.
  • the pre-injection device and the main injection device can have a common chamber which consists of two different strong pressure generating devices is pressurized.
  • a single pressure generating device can also be used, in which the pressure build-up is initially undamped with a small amount for generating the high-pressure jet and is then limited by a damper to a low pressure during the introduction of the main amount of the medium to be injected and over a specified period of time ,
  • the pre-injection device and the main injection device preferably have a common nozzle, a channel leading from the chamber of the main injection device to the nozzle containing a check valve.
  • the design of the nozzle can be round like that of the needle or non-circular or it can have several individual openings for distributing the medium to be injected into the tissue.
  • the device according to the invention is particularly simple and can also be handled easily if a trigger of the pre-injection device is in operative connection with the main injection device.
  • a pressure is built up in the main injection device, which actuates the trigger of the pre-injection device. After triggering the pre-injection device, the pressure in the main injection device is sufficient to maintain the injection channel and to introduce the medium to be injected into the tissue.
  • the second-mentioned problem namely the creation of a device for creating an injection channel in the tissue of a human or animal for a subsequent injection of a medium to be injected, is solved according to the invention in that a pre-injection device is provided upstream of a main injection device containing the medium to be injected, that a chamber of the pre-injection device provided for receiving a pre-injection medium has a nozzle provided for placement on the skin and the pre-injection device has a pressure generating device acting on the chamber for generating a high-pressure jet of the pre-injection medium emerging from the nozzle for producing the injection channel and that the chamber has an exclusive one Generation of the injection channel has dimensioned volume.
  • the pre-injection device can be assembled with an existing main injection device.
  • the main injection device can be, for example, an ordinary syringe in which the pre-injection device is mounted instead of a needle.
  • the pre-injection device can also be mounted on a commercially available PEN injector instead of a needle. Such PEN injectors are used to inject insulin.
  • the pre-injection device preferably has a coupling device with which it can be coupled to the customary syringes or injectors instead of the needle.
  • the third-mentioned problem namely the creation of a method with which several ml of a medium to be injected can be injected into the tissue without a needle and without repeated attachment, is solved according to the invention by first generating a high-pressure jet of a pre-injection medium and by means of the high-pressure jet an injection channel into the tissue is generated and then the medium to be injected is introduced into the tissue through the injection channel.
  • an injection channel is first through the skin to the destination generated in the tissue by means of a high pressure jet of a pre-injection medium.
  • the medium to be injected can then be introduced into the tissue through the injection channel generated by the pre-injection medium.
  • a minimum pressure for maintaining the injection channel necessary for the injection is preferably generated. This minimum pressure is generated by pressure on the injection medium. Thanks to the invention, it is not necessary to introduce the entire medium to be injected into the tissue as a high-pressure jet, but rather only the amount is injected into the tissue as a high-pressure jet that is necessary to produce the injection channel which is guided to the intended destination. Most of the medium can be introduced into the tissue at a much lower pressure.
  • 1 shows a longitudinal section through a pre-injection device of a device according to the invention
  • 1 a the cross-sectional representation along the line (Ia - Ia) through the pre-injection device from FIG. 1,
  • FIG. 2 shows a sectional view through the pre-injection device from FIG. 1 with the main injection device connected in the filling phase
  • FIG. 3 shows a sectional view through the pre-injection device from FIG. 1 in the phase of triggering a pre-injection
  • FIG. 4 shows a sectional view through the pre-injection device from FIG. 1 in the phase with completed pre-injection
  • FIG. 5 shows a sectional view through the pre-injection device from FIG. 1 in the phase after completion of the pre-injection
  • FIG. 1 shows a pre-injection device 1 with a main injection device 17 shown in dashed lines.
  • the main injection device 17 can be, for example, a conventional injection syringe with a chamber 19 delimited by a displaceable piston 18 for receiving a planned quantity of a medium to be injected.
  • the main injection device 17 serves to introduce an intended amount of the medium to be injected into a tissue of a human or animal.
  • the pre-injection device 1 generates an injection channel by means of a pre-injection medium.
  • the pre-injection device 1 is mounted on the injection syringe instead of a conventional needle or cannula in the sense of a needleless cannula for single use.
  • the pre-injection device 1 has a base body 20 which is positively connected to a channel 8 and a chamber 4 for receiving the pre-injection medium.
  • a channel 8 opens into a nozzle 2.
  • the end face of the base body 20 is intended to serve as a contact surface for the tissue to be injected for the nozzle 2 during the injection.
  • the starting position of the pre-injection device 1 shown in FIG. 1 assumes that the chamber 4 is not filled. In this embodiment, an initial filling of the chamber 4 is necessary before the injection is carried out.
  • a subset of the medium to be injected stored in the chamber 19 of the main injection device 17 is used as the pre-injection medium.
  • the chamber 4 of the pre-injection device 1 can already have a physiologically harmless Chen liquid, such as sodium or an anesthetic, flooded.
  • the channel 8 has a connection 3 to the chamber 4 in order to enable the chamber 4 to be filled and emptied via the channel 8.
  • a check valve 5 is provided in the channel 8 to ensure the freedom from interference from the pre-injection device 1 to the main injection device 17 connected via the coupling device 9.
  • the check valve 5 is designed in this example as a simple ball valve, the check valve 5 being controlled automatically by the pressure conditions within the pre-injection device 1 and the chamber 19 of the main injection device 17 during application.
  • the chamber 4 of the pre-injection device 1 must be dimensioned in its size for the pre-injection medium, depending on the intended type of injection - subcutaneously or intramuscularly - in such a way that an intended injection channel is created in the tissue with a high-pressure jet.
  • a small amount of, for example, 0.02 to 0.05 ml of the pre-injection medium is sufficient for this.
  • the chamber 4 of the pre-injection device 1 is delimited by an annular piston 6, which serves for the pulsed ejection of the pre-injection medium as high-pressure steel.
  • the piston 6 ensures the sealing of the pre-injection medium located in the chamber 4 against the surfaces of the channel 8 and the base body 20 below the surfaces bordering the chamber 4.
  • the piston 6 preferably consists of a permanently elastic material with corresponding sliding properties and rests on a pressure plate 7.
  • a pressure generating device 14 ' On the side of the pressure plate 7 facing away from the piston 6 there is a pressure generating device 14 ' a biased spring 14 is arranged.
  • a trigger 11 is anchored in the pressure plate 7, which consists of two parallel bow-shaped elements.
  • the elements of the trigger 11 are pivotably resiliently mounted in the pressure plate 7 and are biased by the spring 14 against a clamping ring 16 firmly connected to the channel 8.
  • the elements of the trigger 11 bear against the outer wall of the channel 8 in such a way that they rest on the side of the clamping ring 16 firmly connected to the channel 8 facing away from the pressure plate 7.
  • the pressure plate 7, spring 14 and thus the piston 6 are held in the tensioned starting position.
  • the piston 6 is designed such that part of its end face adjoining the chamber 4 is designed as a membrane 12.
  • the underside of the membrane 12 borders on cavities in the piston 6 and in the pressure plate 7, which are arranged congruently one above the other. In these cavities there is a slide 13 which borders with one end on the underside of the membrane 12. The second end of the slide 13 is conical and projects between the free ends of the resilient elements of the trigger 11.
  • the membrane 12 is deflected with increasing pressure in the chamber 4 in the direction of the slide 13 and moves the slide in the direction of the free ends of the resilient elements of the trigger 11 until these resilient elements are spread such that they can pass through the clamping ring 16. So that the movement of the pressure plate 7 and the piston 6 is released. The force of the spring 14 can then press the pressure plate 7 and the piston 6 into the chamber 4 of the pre-injection device 1.
  • the slide 13 thus forms a pressure switch for triggering the pre-injection device 1.
  • the coupling device 9 is provided for the conical connection to the main injection device 17 designed as an injection syringe.
  • the coupling device 9 can have a so-called Luer lock standard, for example.
  • a seal 10 is provided for securely sealing the coupling of a cone of the injection syringe to the channel 8 of the pre-injection device 1.
  • the coupling device 9 can take any form for the connection of other injection systems which can be used once or repeatedly or can also be an integral part of these systems, as is shown by way of example in FIGS. 6 and 7.
  • FIG. 1 a The mechanism of action of the triggering process is illustrated in FIG. 1 a in a cross-sectional illustration of the pre-injection device from FIG. 1 along the line Ia-IA.
  • the supporting action of the trigger 11 on the clamping ring 16 is canceled by the slide 13 spreading the two elements of the trigger 11 beyond the area of the clamping ring 16, and the actual triggering process of the pre-injection occurs.
  • the base body 20 is provided with the ventilation 15 in order to ensure the function of the pressure-dependent trigger mechanism via the membrane 12 and slide 13.
  • FIG. 2 shows the pre-injection device 1 described in FIG. 1 in the phase of filling the chamber 4 with the pre-injection medium. Due to low manual pressure in the direction of the arrow shown on the piston 18 of the main injection device 17, the medium to be injected enters the channel 8, the check valve 5 automatically opening and the chamber 4 flooding via the connection 3.
  • the loading Filling process preferably carried out in a vertical position until a bubble-free jet emerges from the nozzle 2, similarly to conventional cannula syringes. Air in the chamber 4 of the pre-injection device 1 escapes via the nozzle 2.
  • the pre-injection device 1 is pressed vertically onto the tissue to be injected with its nozzle 2 opening out of the base body 20.
  • FIG. 3 shows the state of the pre-injection device 1 when the pre-injection is triggered.
  • FIG. 4 shows the pre-injection device 1 from FIG. 1 after the pre-injection has been completed.
  • the piston 6 was moved into the chamber by the force of the spring 14 after the trigger 11 had been moved.
  • the pre-injection medium was conveyed in a pulsed manner from the chamber 4 through the connection 3 into the channel 8 above the self-closing check valve 5 through the nozzle 2.
  • the impulsive removal The change of the pre-injection medium from the chamber 4 via the nozzle 2 takes place as a high-pressure jet, which creates an injection channel through the dash-dotted skin into the underlying tissue.
  • the pre-injection medium has completely escaped from the chamber 4 of the pre-injection device 1.
  • the piston 6 is in the end position and thus closes the connection 3 to the channel 8 above the check valve 5 and is held in the position shown by the spring 14.
  • FIG. 5 shows the state of the pre-injection device 1 after the pre-injection has been completed.
  • the manual pressure on the piston 18 of the main injection device 17 must be maintained after the pre-injection has been carried out.
  • the pressure on the piston 18 of the main injection device 17 in the direction of the arrow opens the check valve 5 again, and the actual injection is carried out via the injection channel generated.
  • the piston 6 of the pre-injection device 1 remains in its end position and does not change its position, since the spring 14, which is not completely relaxed, presses it against the boundary of the chamber 4.
  • FIG. 6 shows a variant of the device according to the invention in addition to a so-called PEN system known from the trade, for example described in US Pat. No. 5,279,586, a system for simple dosing and injection of medication from standard carpules (for example insulin, vaccines).
  • PEN System as main injection device 21.
  • This PEN system is preceded by a pre-injection device 22 instead of the needle that is usually used.
  • the pre-injection device 22 is constructed as described in FIGS. 1 to 5 and can here ensure a needle-free application in a simple manner in addition to the PEN system designated in the trade.
  • the pre-injection device 24 can be designed as an integrative or supplementary component of the main injection device 23 and like the pre-injection device 1 to be constructed according to Figures 1 to 5.
  • the pre-injection device 24 preferably has a piercing cannula 25 for piercing a seal 26 for connection to a chamber 27 of the main injection device 23 designed as a medicament reservoir.
  • Such medicament reservoirs are often referred to as carpules.
  • the chamber 27 contains the total dose of the medium to be injected and has a piston 28 which is connected to a pressure generating device 29.
  • a tensioned spring 30 is used to generate the injection pressure.
  • a trigger 31 When a trigger 31 is actuated, the force of the spring 30 of the pressure generating device 29 on the piston 28 is released and causes pressure to be exerted on the medium in the chamber 27.
  • the pressure increase in the chamber 27, as described for FIGS. 1 to 5 triggers the pre-injection in the pre-injection device 24 by means of a ne nozzle 32. Through the injection channel thus created in the tissue, the entire amount of medication up to the end position of the drive piston 28, equivalent to the emptying of the chamber 27, is introduced into the tissue.
  • FIG. 8 shows a longitudinal section through a device for the needleless injection of a medium into a tissue with a unit comprising a pre-injection device 33 and a main injection device 34, in which a single chamber 35 for receiving a medium to be injected has a nozzle 36 which is intended to be placed on the skin and from a piston 37 is limited.
  • the piston 37 is connected to a piston rod 39 guided to a pressure generating device 38.
  • a manually actuated trigger 40 holds a pressure piece 42 biased by a spring 41 in the position shown. When the trigger 40 is actuated, the movement of the pressure piece 42 is released and the pressure piece 42 is pressed against the piston rod 39 by the spring 41.
  • the piston 37 is pushed into the chamber 35 and the medium to be injected in the chamber 35 is ejected from the nozzle 36.
  • the movement of the piston 37 is controlled by damping means 43 in such a way that it is first moved in a first step with a large pressure by a small path and in a second step with a small pressure by a large path in the chamber 35.
  • the first step serves as a pre-injection and is marked P in the drawing, while the second step is marked H as the main injection.
  • an injection channel is first generated in a pre-injection and then a predetermined amount of the medium to be injected is introduced into the tissue with a main injection.
  • a volume of 0.02 to 0.05 ml can be ejected during the pre-injection, while up to several ml can be injected into the tissue during the main injection.
  • the chamber 35 can therefore have a volume of several ml.
  • the piston rod 39 has, for example, a damping disk 45 opposite a fixed damping track 44.
  • the device is designed for single injection and is constructed as described in WO 01/36028, so that reference is expressly made to this document for further disclosure.
  • FIG. 9 shows a further embodiment of a device for injecting a medium with a unit consisting of pre-injection device 46 and main injection device 47 into a tissue of a human or animal, in which a single chamber 48 is provided with a nozzle 49 and is delimited by a piston 50.
  • the piston 50 has a piston rod 52 which is guided up to a pressure generating device 51.
  • the pressure generating device 51 has two pressure pieces 55, 56 which are prestressed in each case by a spring 53, 54.
  • the pressure pieces 55, 56 are held by a manually actuated trigger 57.
  • the first spring 53 has a short spring travel and a high spring stiffness, while the second spring 54 has a long spring travel and a low spring stiffness.
  • the first spring 53 moves the piston rod 52 and thus the piston 50 by a large force due to the greater spring force.
  • the nozzle 49 is placed on the skin, an injection channel is created in the tissue by means of a pre-injection generated.
  • the second spring presses the piston rod 52 by the path H in the direction of the chamber 48.
  • the entire amount of medium to be injected in the chamber 48 is expelled from the nozzle 49 at a low pressure.

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

Selon invention, un canal d'injection est créé dans un tissu chez un être humain ou un animal au moyen d'une unité de pré-injection (1) dans le but de permettre l'introduction d'une substance à injecter. Ladite unité de pré-injection (1) présente une chambre (4) servant à recevoir une substance à pré-injecter, une buse (2) destinée à être appliquée sur la peau et une unité de production de pression (14') agissant sur la chambre (4) et servant à produire un jet de substance à pré-injecter haute pression sortant de la buse (2). Une telle unité de pré-injection (1), sans aiguille, est montée en amont d'une unité d'injection principale (17).
EP03759857A 2002-06-14 2003-06-13 Dispositif pour l'injection sans aiguille d'une substance dans un tissu d'un etre humain ou d'un animal, dispositif pour creer sans aiguille un canal d'injection et procede pour l'injection d'une substance dans ledit tissu Withdrawn EP1513572A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10226537A DE10226537A1 (de) 2002-06-14 2002-06-14 Preinjektionseinrichtung
DE10226537 2002-06-14
PCT/DE2003/001997 WO2003105934A1 (fr) 2002-06-14 2003-06-13 Dispositif pour l'injection sans aiguille d'une substance dans un tissu d'un etre humain ou d'un animal, dispositif pour creer sans aiguille un canal d'injection et procede pour l'injection d'une substance dans ledit tissu

Publications (1)

Publication Number Publication Date
EP1513572A1 true EP1513572A1 (fr) 2005-03-16

Family

ID=29719064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03759857A Withdrawn EP1513572A1 (fr) 2002-06-14 2003-06-13 Dispositif pour l'injection sans aiguille d'une substance dans un tissu d'un etre humain ou d'un animal, dispositif pour creer sans aiguille un canal d'injection et procede pour l'injection d'une substance dans ledit tissu

Country Status (5)

Country Link
US (1) US7449009B2 (fr)
EP (1) EP1513572A1 (fr)
AU (1) AU2003246537A1 (fr)
DE (2) DE10226537A1 (fr)
WO (1) WO2003105934A1 (fr)

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WO2009053464A1 (fr) * 2007-10-24 2009-04-30 Novo Nordisk A/S Unité d'injection par jet à chambre de liquide élastique
DE102009001858A1 (de) 2009-03-25 2010-09-30 Primojex Gmbh Aufsatz für eine Standardspritzenvorrichtung sowie Injektionsgerät zur nadellosen Injektion
DE102009002826A1 (de) 2009-05-05 2010-11-11 Beiersdorf Ag Nadelfreies Injektionssystem zur kosmetischen Wirkstoffapplikation
WO2011140359A2 (fr) * 2010-05-05 2011-11-10 Springleaf Therapeutics, Inc. Systèmes et procédés d'administration d'un agent thérapeutique
EP2399631A1 (fr) 2010-06-28 2011-12-28 Sanofi-Aventis Deutschland GmbH Auto-injecteur avec élément d'amortissement d'injection
US20130226080A1 (en) * 2010-11-03 2013-08-29 Sanofi-Aventis Deutschland Gmbh Medicated module for a drug delivery device
EP2906275B1 (fr) * 2012-10-10 2019-07-31 Sanofi-Aventis Deutschland GmbH Dispositif d'aiguille attachable à un dispositif d'injection, le dispositif d'aiguille muni d'un ensemble de réservoir avec mécanisme de verrouillage
AU2015256082C1 (en) 2014-05-07 2020-09-10 Amgen Inc. Autoinjector with shock reducing elements
KR101838631B1 (ko) * 2016-11-03 2018-04-26 서울대학교 산학협력단 반복 분사에 따른 젯의 분사 속도 저하를 방지하고 약물의 자동 충전이 가능한 마이크로젯 약물 주입 장치
JP7200134B2 (ja) 2017-06-08 2023-01-06 アムジエン・インコーポレーテツド トルク駆動式薬物送達デバイス
JP7576089B2 (ja) 2020-06-05 2024-10-30 株式会社ダイセル 無針注射器

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US7449009B2 (en) 2008-11-11
US20050245859A1 (en) 2005-11-03
WO2003105934A1 (fr) 2003-12-24
DE10393334D2 (de) 2005-06-23
DE10226537A1 (de) 2004-01-08
AU2003246537A1 (en) 2003-12-31

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