WO1999010031A1 - Dispositif pour l'injection de matiere sous la peau d'un etre humain ou d'un animal - Google Patents
Dispositif pour l'injection de matiere sous la peau d'un etre humain ou d'un animal Download PDFInfo
- Publication number
- WO1999010031A1 WO1999010031A1 PCT/US1998/017726 US9817726W WO9910031A1 WO 1999010031 A1 WO1999010031 A1 WO 1999010031A1 US 9817726 W US9817726 W US 9817726W WO 9910031 A1 WO9910031 A1 WO 9910031A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- animal
- skin
- piston
- medication
- transducer
- 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
- A61M5/31—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
- A61M5/31565—Administration mechanisms, i.e. constructional features, modes of administering a dose
- A61M5/31566—Means improving security or handling thereof
-
- 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
- A61M5/46—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 controlling depth of insertion
-
- 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
- A61M5/48—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 varying, regulating, indicating or limiting injection pressure
- A61M5/482—Varying injection pressure, e.g. by varying speed of injection
Definitions
- the medication cylinder is connected through one check valve to a source of liquid medication and to another check valve to an ejection nozzle.
- the double piston is driven in a direction to eject medication from the medication cylinder by way of the nozzle.
- the piston is forced in the opposite direction and a new dose of medication is drawn into the medication cylinder, for ejection on the next driving stroke.
- the stroke of the double piston is adjustable, for controlling the size of the dose of medication that is ejected. The force with which the medication is ejected depends upon the pressure of C0 2 supplied to the drive cylinder .
- the needleless jet injector shown in International Publication WO 92/1026 may be used for injecting medication into humans or into animals having a tough but flexible and relatively impermeable outer skin, hereinafter referred to collectively as bodies.
- the nozzle is placed against the skin of a body and a valve is operated to connect the drive cylinder to the source of high pressure C0 2 .
- the medication is ejected from the nozzle and penetrates the skin of the body.
- the depth to which the medication penetrates depends on the force with which the medication is ejected from the nozzle.
- the skins of different animals can vary- quite substantially in thickness .
- the C0 2 pressure is optimum for the thinner skinned animals, it may be insufficient to inject into an animal having a thick and tough skin or hide, whereas if the pressure is optimized for thicker hided animals, there is a possibility of injury to a thinner skinned animal or of the medication being injected too deeply into the animal.
- the skin of a young child is generally thinner than the skin of an adult human.
- apparatus for injection of material into the body of an animal comprising an injector means for applying injectable material to the skin of the animal with an adjustable injection force, a measurement means for providing a signal which depends on the thickness of the skin of the animal, and a control means for adjusting the injection force in dependence on the measured thickness of the skin of the animal.
- FIG. 1 is a partial sectional view of an injection apparatus comprising a needleless jet injector and a device for measuring skin thickness
- FIG. 2 is a side view of the apparatus when positioned against a body for injection
- FIG. 3 is a block diagram illustrating a control circuit for controlling the apparatus
- FIG. 4 is a partial illustration of a modification of the injection apparatus shown in FIGS. 1-3.
- FIG. 1 illustrates the nozzle 10 of a needleless jet injector having a medication cylinder 12 to which medication is supplied through a tube 14.
- a mounting collar 18 carrying a skin thickness detector 20 is fitted over the forward end of the medication cylinder 12.
- the skin thickness detector 20 comprises a cylindrical inner housing 22 which is attached to the mounting collar 18 and is closed at one end (the left end in FIG. 1) by an acoustic standoff or coupling member 26.
- the inner housing 22 contains an ultrasonic transducer 28 which is attached to the acoustic standoff 26.
- the transducer is connected to a control circuit (FIG. 3) through wires extending from the inner housing.
- the control circuit controls the pressure of C0 2 supplied to the driving cylinder of the jet injector.
- An outer housing 32 defines a cylindrical inner chamber which contains the inner housing.
- the outer housing is slidable longitudinally with respect to the inner housing while remaining mounted thereon.
- the outer housing is partially closed at its forward end by a perforated acoustic standoff 34 which is aligned with and confronts the acoustic standoff 26 across a pump chamber 36.
- the outer housing also defines a reservoir 40 which is connected to the pump chamber 36 by a check valve 42.
- a spring 44 is effective between the outer housing 32 and an abutment member 46 which is stationary relative to the inner housing 22 for pushing the outer housing to the left of FIG. 1 so that it projects axially beyond the tip of the nozzle 1.
- the inner housing and the outer housing together form a lift pump, in which fluid can be drawn into the pump chamber through the check valve and forced from the pump chamber through the perforations in the acoustic standoff 34.
- a quantity of vegetable oil or other suitable acoustic couplant is placed in the reservoir 40 and fills the pump chamber 36 and the perforations in the acoustic standoff 34.
- the operator positions the apparatus so that the standoff 34 is in contact with the skin of a body to be treated and then presses the apparatus to bring the tip of the nozzle 10 into contact with the skin, as shown in FIG. 2.
- the inner housing 22 is pushed to the left relative to the outer housing 32 and couplant is forced from the pump chamber though the pores of the standoff 34.
- the couplant provides an effective acoustic coupling between the transducer 28 and the skin of the animal.
- the skin thickness detector supplies a signal to a controller 50 (FIG. 3), e.g. by closing a limit switch.
- the controller 50 responds to this signal by supplying a signal to the transducer 28 and the transducer emits a pulse of ultrasonic acoustic energy.
- the pulse of ultrasonic energy is propagated through the standoff 26, the standoff 34 and the couplant and penetrates the skin of the animal.
- Some acoustic energy is reflected toward the transducer, which detects the level of reflected power and provides a signal to the controller 50, which measures the variation in reflected power level as a function of time after emission of the pulse.
- the level of the reflected acoustic power depends on changes in density of the animal. Since there is a change in density at the inner margin of the skin, there is a peak in the level of reflected acoustic power corresponding to the inner margin of the skin. The time of occurrence of this peak relative to the time of emission of the acoustic pulse is calculated by the controller and this delay allows the controller to calculate the skin thickness .
- the controller calculates an appropriate pressure value for the pressure of C0 2 to be applied to the driving cylinder based on the calculated skin thickness .
- the controller provides an output signal to a pressure adjustment device 54 to adjust the pressure of C0 2 , and at this point the injector apparatus is enabled.
- the controller supplies a signal to illuminate a READY lamp 52, which informs the operator that the apparatus is ready for use, provided that the signal provided by the limit switch indicates that the standoff 34 is still in contact with the skin of the animal.
- the operator actuates the apparatus, e.g. by pulling a trigger or pressing a button, and pressurized C0 2 is supplied to the driving cylinder and as a result the medication is forced from the nozzle with an ejection force that depends on the pressure of C0 2 and hence on the skin thickness measured by the measurement device.
- the trigger or button is locked out, preventing actuation of the apparatus, until the controller illuminates the READY lamp.
- the operator moves the nozzle away from the skin of the body.
- the force of the spring 44 pushes the outer housing 32 to the left relative to the inner housing 22. Since the pores in the standoff are narrow, the couplant in the pores is not drawn back into the pump chamber but additional material is instead drawn into the pump chamber through the check valve .
- the standoff 34 includes a skirt 56 surrounding the perforated area so that a film of couplant is trapped between the forward face of the standoff and the skin of the animal.
- the invention is not restricted to the particular embodiment that has been described, and that variations may be made therein without departing from the scope of the invention as defined in the appended claims and equivalents thereof.
- the invention is not restricted to use in conjunction with a jet injector of the kind shown in International Publication WO 92/10226, in which C0 2 is used to supply the motive force for ejecting the medication from the nozzle, and there are many other possible ways of applying the necessary motive force.
- the medication piston may be spring-loaded, in which event the control signal provided by the controller is used to adjust the spring force, for example by displacing a backup member against which the spring bears .
- Another possibility is to use an electromagnetic solenoid to displace the medication piston, in which case the control signal is used to control the magnetic force generated by the solenoid.
- the invention is not restricted to a mass inoculation apparatus, in which there is a reservoir for successively injecting the same medication into numerous animals, and is also applicable to a single injection apparatus, in which potentially a different medication is injected each time the apparatus is used.
- the medication may be in the form of capsules.
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
L'invention concerne un dispositif pour l'injection de matière dans le corps d'un animal, qui comprend un injecteur permettant d'appliquer une matière injectable à un détecteur d'épaisseur de peau (20), de manière à obtenir un signal dont la valeur dépend de l'épaisseur de la peau de l'animal considéré (figure 2). Le dispositif comprend aussi un régisseur (50) permettant de régler la force d'injection par rapport à l'épaisseur de peau mesurée sur l'animal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU89219/98A AU8921998A (en) | 1997-08-27 | 1998-08-27 | Device for injecting material beneath the skin of a human or animal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5685297P | 1997-08-27 | 1997-08-27 | |
US60/056,852 | 1997-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999010031A1 true WO1999010031A1 (fr) | 1999-03-04 |
Family
ID=22006960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/017726 WO1999010031A1 (fr) | 1997-08-27 | 1998-08-26 | Dispositif pour l'injection de matiere sous la peau d'un etre humain ou d'un animal |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU8921998A (fr) |
WO (1) | WO1999010031A1 (fr) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9022022B2 (en) | 2011-02-28 | 2015-05-05 | Kaleo, Inc. | Medicament delivery device for administration of opioid antagonists including formulations for naloxone |
US9022980B2 (en) | 2005-02-01 | 2015-05-05 | Kaleo, Inc. | Medical injector simulation device |
US9056170B2 (en) | 2004-11-22 | 2015-06-16 | Kaleo, Inc. | Devices, systems and methods for medicament delivery |
US9149579B2 (en) | 2004-11-22 | 2015-10-06 | Kaleo, Inc. | Devices, systems and methods for medicament delivery |
US9238108B2 (en) | 2005-02-01 | 2016-01-19 | Kaleo, Inc. | Medicament delivery device having an electronic circuit system |
US9259539B2 (en) | 2005-02-01 | 2016-02-16 | Kaleo, Inc. | Devices, systems and methods for medicament delivery |
US9278177B2 (en) | 2005-02-01 | 2016-03-08 | Kaleo, Inc. | Medical injector with compliance tracking and monitoring |
US9517307B2 (en) | 2014-07-18 | 2016-12-13 | Kaleo, Inc. | Devices and methods for delivering opioid antagonists including formulations for naloxone |
US9522235B2 (en) | 2012-05-22 | 2016-12-20 | Kaleo, Inc. | Devices and methods for delivering medicaments from a multi-chamber container |
US9542826B2 (en) | 2012-12-27 | 2017-01-10 | Kaleo, Inc. | Devices, systems and methods for locating and interacting with medicament delivery systems |
US9555191B2 (en) | 2007-01-22 | 2017-01-31 | Kaleo, Inc. | Apparatus and methods for self-administration of vaccines and other medicaments |
US9724471B2 (en) | 2005-02-01 | 2017-08-08 | Kaleo, Inc. | Devices, systems, and methods for medicament delivery |
US9814838B2 (en) | 2011-01-26 | 2017-11-14 | Kaleo, Inc. | Medicament delivery device for administration of opioid antagonists including formulations for naloxone |
US9833573B2 (en) | 2004-11-22 | 2017-12-05 | Kaleo, Inc. | Devices, systems and methods for medicament delivery |
US10192464B2 (en) | 2008-07-28 | 2019-01-29 | Kaleo, Inc. | Medicament delivery device configured to produce wireless and audible outputs |
US10238806B2 (en) | 2011-01-26 | 2019-03-26 | Kaleo, Inc. | Medicament delivery devices for administration of a medicament within a prefilled syringe |
US10332623B2 (en) | 2017-01-17 | 2019-06-25 | Kaleo, Inc. | Medicament delivery devices with wireless connectivity and event detection |
US10576206B2 (en) | 2015-06-30 | 2020-03-03 | Kaleo, Inc. | Auto-injectors for administration of a medicament within a prefilled syringe |
US10688244B2 (en) | 2016-12-23 | 2020-06-23 | Kaleo, Inc. | Medicament delivery device and methods for delivering drugs to infants and children |
US10695495B2 (en) | 2015-03-24 | 2020-06-30 | Kaleo, Inc. | Devices and methods for delivering a lyophilized medicament |
US10737028B2 (en) | 2004-11-22 | 2020-08-11 | Kaleo, Inc. | Devices, systems and methods for medicament delivery |
US11167087B2 (en) | 2019-08-09 | 2021-11-09 | Kaleo, Inc. | Devices and methods for delivery of substances within a prefilled syringe |
US11590286B2 (en) | 2004-11-22 | 2023-02-28 | Kaleo, Inc. | Devices, systems and methods for medicament delivery |
USD994111S1 (en) | 2008-05-12 | 2023-08-01 | Kaleo, Inc. | Medicament delivery device cover |
US11929160B2 (en) | 2018-07-16 | 2024-03-12 | Kaleo, Inc. | Medicament delivery devices with wireless connectivity and compliance detection |
US12005236B2 (en) | 2020-06-24 | 2024-06-11 | Kaleo, Inc. | Devices and methods for delivering a lyophilized medicament |
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US4767402A (en) * | 1986-07-08 | 1988-08-30 | Massachusetts Institute Of Technology | Ultrasound enhancement of transdermal drug delivery |
US5569190A (en) * | 1987-06-08 | 1996-10-29 | D'antonio; Nicholas F. | Hypodermic fluid dispenser |
US5660528A (en) * | 1994-12-26 | 1997-08-26 | Nec Corporation | Liquid delivery system at specified rate using ultrasonic vibrators |
US5728130A (en) * | 1996-03-22 | 1998-03-17 | Olympus Optical Co., Ltd. | Ultrasonic trocar system |
-
1998
- 1998-08-26 WO PCT/US1998/017726 patent/WO1999010031A1/fr active Application Filing
- 1998-08-27 AU AU89219/98A patent/AU8921998A/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US4767402A (en) * | 1986-07-08 | 1988-08-30 | Massachusetts Institute Of Technology | Ultrasound enhancement of transdermal drug delivery |
US5569190A (en) * | 1987-06-08 | 1996-10-29 | D'antonio; Nicholas F. | Hypodermic fluid dispenser |
US5660528A (en) * | 1994-12-26 | 1997-08-26 | Nec Corporation | Liquid delivery system at specified rate using ultrasonic vibrators |
US5728130A (en) * | 1996-03-22 | 1998-03-17 | Olympus Optical Co., Ltd. | Ultrasonic trocar system |
Cited By (59)
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US11929160B2 (en) | 2018-07-16 | 2024-03-12 | Kaleo, Inc. | Medicament delivery devices with wireless connectivity and compliance detection |
US11167087B2 (en) | 2019-08-09 | 2021-11-09 | Kaleo, Inc. | Devices and methods for delivery of substances within a prefilled syringe |
US12005236B2 (en) | 2020-06-24 | 2024-06-11 | Kaleo, Inc. | Devices and methods for delivering a lyophilized medicament |
Also Published As
Publication number | Publication date |
---|---|
AU8921998A (en) | 1999-03-16 |
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