DE2035098B2 - - Google Patents
Info
- Publication number
- DE2035098B2 DE2035098B2 DE19702035098 DE2035098A DE2035098B2 DE 2035098 B2 DE2035098 B2 DE 2035098B2 DE 19702035098 DE19702035098 DE 19702035098 DE 2035098 A DE2035098 A DE 2035098A DE 2035098 B2 DE2035098 B2 DE 2035098B2
- Authority
- DE
- Germany
- Prior art keywords
- rack
- syringe
- membrane
- stroke
- working piston
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/015—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with pneumatically or hydraulically actuated piston or the like
-
- 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
-
- 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
- A61M5/30—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
- A61M5/31—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
- A61M5/3159—Dose expelling manners
- A61M5/31593—Multi-dose, i.e. individually set dose repeatedly administered from the same medicament reservoir
- A61M5/31595—Pre-defined multi-dose administration by repeated overcoming of means blocking the free advancing movement of piston rod, e.g. by tearing or de-blocking
-
- 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
- A61M5/31576—Constructional features or modes of drive mechanisms for piston rods
- A61M5/31578—Constructional features or modes of drive mechanisms for piston rods based on axial translation, i.e. components directly operatively associated and axially moved with plunger rod
Description
Die Erfindung betrifft eine Vorrichtung zur selbsttätigen Durchführung einer Mehrzahl von dosierten Injektionen mittels einer Spritze ohne erneute Beschikkung der letzteren, die auf einem Tragelement befestigt ist und einen in einem Spritzenzylinder angeordneten Sprilzenkolben aufweist, der mit dem Tragelement über einen manuell steuerbaren und durch ein kompressibles Medium betätigbaren Arbeitskolben verbunden ist, dessen Arbeitshub nur einen Teil des Gesamtarbeitshubs des Spritzenkolbens beträgt, wobei zum schrittweisen Vorschub des Spritzenkolbens ein Sperrklinken-Zahnstangen-Mechanismus zwischen dem Spritzenkolben und dem Arbeitskolben angeordnet ist, der während des Arbeitshubs des Arbeitskolbens eingerastet und während dessen Rückhubs ausgerastet ist, wobei ferner der Spritzenkolben während des Rückhubs des Arbeitskolbens durch Reibung in seiner Lage im Spritzenzyünder gehalten ist, nach Patent 1? 9t 094, Anspruch 3.The invention relates to a device for the automatic implementation of a plurality of metered Injections by means of a syringe without reloading the latter, which is attached to a support element and has a plunger which is arranged in a syringe cylinder and which is connected to the support element via a manually controllable working piston that can be actuated by a compressible medium is connected, whose working stroke is only part of the total working stroke of the syringe plunger, with the step-wise Advancement of the syringe plunger is a ratchet and rack and pinion mechanism between the syringe plunger and the working piston is arranged, which is engaged during the working stroke of the working piston and is disengaged during its return stroke, furthermore the syringe plunger during the return stroke of the working piston by friction in its position in the syringe timer is held, according to patent 1? 9t 094, claim 3.
Nach einer Ausführungsform des Hauptpatentes ist der Sperrklinken-Zahnstangen-Mechanismus zwischen dem Spritzenkolben und dem Arbeitskolben angeordnet, der durch das kompressible Medium beaufschlagbar und in einem ortsfesten Arbeitszylinder angeordnet istAccording to one embodiment of the main patent, the ratchet rack and pinion mechanism is between the syringe piston and the working piston arranged, which can be acted upon by the compressible medium and is arranged in a stationary working cylinder
Die Erfindung bezweckt eine Weiterbildung dieser Ausführungsform und ihr liegt die Aufgabe zugrunde, bei einfacher Bauweise den Injektionsdruck zu steigern, ohne daß der Druck des kompressiblen Mediums erhöht werden muß.The invention aims to develop this embodiment and it is based on the object to increase the injection pressure in a simple design without increasing the pressure of the compressible medium must become.
Gemäß der Erfindung wird dies dadurch erreicht, daß der Arbeitskolben in Form einer verformbaren Membran ausgebildet ist und daß das eine Ende der Sperrklinke mit dem Spritzenkolben eine Einheit bildet, während ihr anderes Ende über die Zahnstange durch die Membran beaufschlagbar istAccording to the invention this is achieved in that the working piston is in the form of a deformable membrane is designed and that one end of the pawl forms a unit with the syringe plunger, while its other end can be acted upon via the toothed rack through the membrane
Eine beispielsweise Ausführungsform der Erfindung wird nachfolgend anhand der Zeichnung im einzelnen erläutert, in derAn example embodiment of the invention is described in detail below with reference to the drawing explained in the
F i g. 1 schematisch im Längsschnitt eine erfindungsgemäße Vorrichtung in Ruhestellung zeigtF i g. 1 shows schematically in longitudinal section a device according to the invention in the rest position
Fig.2 zeigt im Längsschnitt die Vorrichtung nach F i g. 1 in Arbeitsstellung.2 shows the device according to FIG F i g. 1 in working position.
In der Zeichnung sind gestrichelt ein Gehäuse 1 der Vorrichtung, ein Behälter 2 für ein unter Druck befindliches Gas und die Vorrichtung, die das unter Druck befindliche Gas in dem Augenblick, in dem es benötigt wird, liefert, dargestellt Diese Vorrichtung umfaßt ein durch einen Hebel 4 zu betätigendes Ventil 3, das den Behälter 2 mit einer Rohrleitung 5 in Verbindung bringt wenn der Hebel betätigt wird, und das die Rohrleitung 5 mit der freien Luft in Verbindung bringt (wobei das vollständige Verschließen des Behälters 2 gewährleistet ist), wenn man mit der Hebelbetätigung aufhört (F i g. 1).In the drawing, a housing 1 of the device, a container 2 for a under pressure are dashed located gas and the device that the pressurized gas at the moment in which it is required, supplies, shown. This device comprises a valve 3 to be actuated by a lever 4, that brings the container 2 with a pipe 5 in connection when the lever is operated, and that brings the pipe 5 into communication with the open air (whereby the complete closure of the Container 2 is guaranteed) if you stop operating the lever (Fig. 1).
Ebenfalls gezeigt ist ein Gehäuse 6 der Injektionsspritze, die durch einen Kanal 7 mit einer nicht dargestellten hohlen Nadel verbunden ist. Der Kolben 21 der Spritze begrenzt einen variablen abgeschlossenen Volumenraum, in welchem sich die zu injizierende Flüssigkeit 9 befindet.Also shown is a housing 6 of the injection syringe, which through a channel 7 with a not hollow needle shown is connected. The plunger 21 of the syringe limits a variable closed Volume space in which the liquid 9 to be injected is located.
Eine Zahnstange 19 mit rundem Querschnitt ragt in das Innere einer Röhre 11, welche an einem Ende mit dem Kolben 21 ein Ganzes bildet und am anderen Ende eine Sperrklinke 17 aufweist, weiche durch eine mit den Kerben der Zahnstange 19 zusammenarbeitenden Feder zurückgestoßen wird. Die Zahnstange 19 besitzt an ihrem Ende rechts eine Anschlagplatte 12 (die im vorliegenden Fall aus einer kreisförmigen Scheibe besteht) sowie einen Flansch 14, der in einer bestimmten Entfernung von der Anschlagplatte 12 angebracht ist.A rack 19 with a round cross-section protrudes into the interior of a tube 11, which at one end the piston 21 forms a whole and at the other end has a pawl 17, soft by one with the Notches of the rack 19 cooperating spring is pushed back. The rack 19 has at its end on the right a stop plate 12 (which in the present case consists of a circular disc exists) as well as a flange 14 which is attached at a certain distance from the stop plate 12.
Die Zahnstange 19 ist so angebracht, daß sie in einem Anschlag 15, der mit dem Gehäuse der Vorrichtung ein Ganzes bildet, gleiten kann, wobei die Anschlagplatte 12 abnehmbar ist, um die Montage der Vorrichtung zu ermöglichen.The rack 19 is attached so that they in one Stop 15, which forms a whole with the housing of the device, can slide, the stop plate 12 is removable to enable the assembly of the device.
Ein einstellbarer Anschlag 16, durch den sich die Zahnstange 19 erstreckt, ist an dem Anschlag 15 angeschraubt und dient dem einen Ende einer Rückstellfeder 13 als Anschlag, während das andere E'.nde der Feder an dem Flansch 14 anschlägt.An adjustable stop 16 through which the rack 19 extends is on the stop 15 screwed and serves one end of a return spring 13 as a stop, while the other The end of the spring strikes against the flange 14.
Eine Membran 18, die beispielsweise aus einer dünnen Metallfolie bestehen kann (die aber auch aus einem anderen Material ausgeführt sein kann), wird an ihrer Peripherie mittels eines Deckels 8 gehalten, welcherA membrane 18, which can for example consist of a thin metal foil (but which can also consist of a other material), is held on its periphery by means of a cover 8, which
gasdicht auf den abgebogenen Rändern des Anschlags 15 aufliegt Die Rohrleitung 5 mündet in den Deckel 8.rests gas-tight on the bent edges of the stop 15. The pipeline 5 opens into the cover 8.
Die Kraft der Rückstellfeder 13 ist derart bemessen, daß die Feder die Zahnstange 19 verschiebt wenn die Rohrleitung 5 mit der Außenatmosohäre in Verbindung tritt, um sie in die in F i g. 1 dargestellte Position zu bringen, wobei der Flansch 14 auf dem Anschlag 15 anschlägt Wenn andererseits das in der Flasche 2 enthaltene unter Druck befindliche Gas in die Rohrleitimg 5 (Fig.2) eingelassen wird, löst die Membran die Verschiebung der Zahnstange 19 nach links aus und der Flansch 14 stößt gegen den Anschlag 16.The force of the return spring 13 is dimensioned in such a way that that the spring moves the rack 19 when the pipe 5 is in connection with the external atmosphere occurs to them in the in F i g. 1 position shown bring the flange 14 against the stop 15 If on the other hand that in the bottle 2 contained under pressure gas is admitted into the Rohrleitimg 5 (Fig.2), triggers the The membrane shifts the rack 19 to the left and the flange 14 strikes the stop 16.
Man sieht, daß durch aufeinanderfolgende Betätigungen des Hebels 4 wechselnde Verschiebungen der Zahnstange 19 hervorgerufen werden, deren Weite durch die relativen Stellungen des Anschlags 15 und des einstellbaren Anschlags 16 begrenzt sind. Man kann daher leicht die zu injizierende Flüssigkel.smenge durch die Einstellung des Anschlags 16 einstellen.It can be seen that by successive actuations of the lever 4, alternating displacements of the Rack 19 are caused, the width of which is determined by the relative positions of the stop 15 and the adjustable stop 16 are limited. You can therefore easily adjust the amount of liquid to be injected adjust the setting of the stop 16.
Wegen des Vorhandenseins der Sperrklinke 17 entsprechen diese wechselnden Bewegungen derBecause of the presence of the pawl 17, these alternating movements correspond to Zahnstange 19 den Verschiebungen des Kolbens 21 alleine in der Richtung, in der das aufeinanderfolgende Ausdrucken der vorgegebenen Flüssigkeitsmengen aus der Spritze veranlaßt wird.Rack 19 the displacements of the piston 21 alone in the direction in which the successive Printing out the predetermined amounts of liquid is caused from the syringe.
Selbstverständlich sind die Dimensionen der Zähne der Zahnstange 19 so ausgewählt, daß eine solche Bewegung möglich ist, und im allgemeinen ist es wünschenswert, daß der Abstand zwischen den verschiedenen Zähnen der Zahnstange gering ist unterOf course, the dimensions of the teeth of the rack 19 are selected so that such Movement is possible, and in general it is desirable that the distance between the different teeth of the rack is low under
ίο Berücksichtigung des Fortschreitens oder der Verschiebung, die sie durch den Kolben bei jeder Injektion erfährtίο taking into account the advancement or displacement that it makes through the plunger with each injection learns
Die Vorrichtung ermöglicht die Durchführung einer Injektion von aufeinanderfolgenden Dosen der in derThe device enables an injection of successive doses of the in the
Sie ermöglicht ferner eine leichte Einstellung des injizierten Volumens, und dank der beträchtlichen Oberfläche der Membran wird ein erheblicher Injektionsdruck gewährleistet ohne daß zu einer GasquelleIt also allows easy adjustment of the volume injected, and thanks to the considerable On the surface of the membrane, a considerable injection pressure is guaranteed without becoming a gas source mit sehr hohem Druck Zuflucht genommen werden muß.must be resorted to under very high pressure.
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6924250A FR2052106A6 (en) | 1969-07-16 | 1969-07-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2035098A1 DE2035098A1 (en) | 1971-02-11 |
DE2035098B2 true DE2035098B2 (en) | 1980-11-13 |
DE2035098C3 DE2035098C3 (en) | 1981-09-17 |
Family
ID=9037548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19702035098 Expired DE2035098C3 (en) | 1969-07-16 | 1970-07-15 | Device for the automatic implementation of a plurality of metered injections |
Country Status (8)
Country | Link |
---|---|
BE (1) | BE753468R (en) |
BR (1) | BR7020554D0 (en) |
DE (1) | DE2035098C3 (en) |
ES (1) | ES381802A1 (en) |
FR (1) | FR2052106A6 (en) |
GB (1) | GB1284312A (en) |
LU (1) | LU61333A1 (en) |
NL (1) | NL7010473A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2748021A1 (en) * | 1976-10-26 | 1978-05-18 | Hart Ass Inc | Automatic actuator esp. for heart injection syringe - has pneumatic piston to give accurate injection period |
US5370630A (en) * | 1993-11-12 | 1994-12-06 | Smidebush; Michael J. | Device for injection of fluidic materials into body tissue |
DE19859137C1 (en) * | 1998-12-21 | 2000-05-18 | Ferton Holding Sa | High pressure medicinal injection unit includes piston advanced into pressure chamber by series of resilient impacts, forcing fluid out in series of impulses for precise low-volume dosing |
DE10343575B4 (en) | 2003-09-18 | 2006-06-29 | Hilti Ag | Pressing device with dosing device |
US8998881B2 (en) | 2005-08-10 | 2015-04-07 | Alza Corporation | Method for delivering drugs to tissue under microjet propulsion |
ES1070842Y (en) * | 2009-08-13 | 2010-02-03 | Estepa Luis Enrique Poveda | BIOSECURITY SELF-DISPOSABLE MEDICINAL SYRINGE |
-
1969
- 1969-07-16 FR FR6924250A patent/FR2052106A6/fr not_active Expired
-
1970
- 1970-07-14 GB GB3406570A patent/GB1284312A/en not_active Expired
- 1970-07-15 DE DE19702035098 patent/DE2035098C3/en not_active Expired
- 1970-07-15 BR BR22055470A patent/BR7020554D0/en unknown
- 1970-07-15 NL NL7010473A patent/NL7010473A/xx unknown
- 1970-07-15 BE BE753468D patent/BE753468R/en active
- 1970-07-15 ES ES381802A patent/ES381802A1/en not_active Expired
- 1970-07-15 LU LU61333D patent/LU61333A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR2052106A6 (en) | 1971-04-09 |
BR7020554D0 (en) | 1973-04-26 |
LU61333A1 (en) | 1970-09-16 |
BE753468R (en) | 1971-01-15 |
DE2035098A1 (en) | 1971-02-11 |
DE2035098C3 (en) | 1981-09-17 |
ES381802A1 (en) | 1973-04-01 |
GB1284312A (en) | 1972-08-09 |
NL7010473A (en) | 1971-01-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) |