FR2560050A2 - Dental syringe for intraligamentary injections - Google Patents
Dental syringe for intraligamentary injections Download PDFInfo
- Publication number
- FR2560050A2 FR2560050A2 FR8312932A FR8312932A FR2560050A2 FR 2560050 A2 FR2560050 A2 FR 2560050A2 FR 8312932 A FR8312932 A FR 8312932A FR 8312932 A FR8312932 A FR 8312932A FR 2560050 A2 FR2560050 A2 FR 2560050A2
- Authority
- FR
- France
- Prior art keywords
- container
- syringe
- piston
- syringe according
- main
- 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
- 238000002347 injection Methods 0.000 title description 4
- 239000007924 injection Substances 0.000 title description 4
- 235000011837 pasties Nutrition 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000007799 cork Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
-
- 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
- A61M5/31581—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 performed by rotationally moving or pivoting actuator operated by user, e.g. an injection lever or handle
-
- 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
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
- A61M2005/341—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub angularly adjustable or angled away from the axis of the injector
-
- 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
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)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
La seringue décrite au brevet principal comporte une carpule contenant un liquide a injecter, le but des aménagements de cette seringue faisant l'objet de ce brevet étant de permettre l'injection de ce liquide avec une force multipliée par rapport à la pression manuelle exercée par l'utilisateur. The syringe described in the main patent comprises a cartridge containing a liquid to be injected, the purpose of the arrangements of this syringe which is the subject of this patent being to allow the injection of this liquid with a force multiplied compared to the manual pressure exerted by the user.
Le présent additif vise en premier lieu une variante dans laquelle ces mêmes aménagements permettant d'atteindre le même but, mais cette fois le produit à injecter étant non plus un liquide mais une pâte, par exemple une pâte d'obturation. The present additive aims firstly at a variant in which these same arrangements make it possible to achieve the same goal, but this time the product to be injected being no longer a liquid but a paste, for example a sealing paste.
En second lieu cet additif vise l'adjonction entre l'extrémité antérieure du porte-carpule et la carpule, d'une pièce en forme de manchon de protection du bouchon de la carpule contre les déchirures accidentelles pouvant résulter de la déformation de ce bouchon sous la pression du liquide qu'elle contient. Secondly, this additive targets the addition between the anterior end of the carpule holder and the carpule, of a piece in the form of a sleeve protecting the cap of the carpule against accidental tears which may result from the deformation of this cap under the pressure of the liquid it contains.
Selon l'invention ce manchon vient entourer la portion postérieure de l'aiguille en s'épanouissant à son extrémité arrière pour s'adapter à la forme du porte-carpule, la partie centrale de cette extrémité présentant un relief repoussant légèrement le bouchon en caoutchouc de la carpule au niveau de l'extrémité de l'aiguille.According to the invention, this sleeve surrounds the rear portion of the needle by opening at its rear end to adapt to the shape of the cartridge holder, the central part of this end having a relief slightly repelling the rubber stopper. of the carpule at the end of the needle.
A cet effet, à la place de la carpule (5) contenant le liquide à injecter, logée dans le porte carpule (4) accroché en (11) au corps de la seringue, le présent additif prévoit un conteneur de pâte se terminant à l'avant par une canule d'injection, éventuellement coudée, et à l'arrière par un bouchon élastique subissant l'action d'un piston auxiliaire mobile dans une pièce servant de porte-conteneur, et subissant lui-même l'action du piston principal contenu dans le corps de la seringue, et actionné par les moyens décrits au brevet principal. For this purpose, in place of the cartridge (5) containing the liquid to be injected, housed in the cartridge holder (4) attached at (11) to the body of the syringe, the present additive provides for a container of paste ending at the '' by an injection cannula, possibly bent, and at the rear by an elastic plug undergoing the action of an auxiliary piston movable in a part serving as a container carrier, and itself undergoing the action of the piston main contained in the body of the syringe, and actuated by the means described in the main patent.
Un ressort de rappel tend à éloigner ce piston auxiliaire de ce bouchon, la course de ce piston auxiliaire étant délimitée par deux butées logées dans le porte-conteneur.A return spring tends to move this auxiliary piston away from this plug, the travel of this auxiliary piston being delimited by two stops housed in the container carrier.
Le piston auxiliaire interdisant l'introduction du conteneur par l'arrière du porte-conteneur, comme c'était le cas pour la carpule du brevet principal, la mise en place du conteneur s'effectue par une lumière pratiquée dans la partie antérieure du porte-conteneur. The auxiliary piston preventing the introduction of the container from the rear of the container carrier, as was the case for the cartridge of the main patent, the positioning of the container is carried out by a light made in the front part of the door -container.
On va maintenant décrire l'invention plus en détail en se référant à la description suivante, correspondant au dessin annexé, sur lequel
- la figure 1 est une vue latérale avec arrachement partiel du dispositif faisant l'objet du présent additif,
- la figure 2 est analogue à la figure 1, et montrant une variante dans laquelle la canule d'injection est coudée,
- la figure 3 représente le manchon de protection de la carpule, l'aiguille étant en place,
- la figure 4 est un schéma à grande échelle montrant la forme du bouchon de la carpule.The invention will now be described in more detail with reference to the following description, corresponding to the attached drawing, in which
FIG. 1 is a side view with partial cutaway of the device which is the subject of this additive,
FIG. 2 is similar to FIG. 1, and showing a variant in which the injection cannula is bent,
FIG. 3 represents the protective sleeve of the cartridge, the needle being in place,
- Figure 4 is a large-scale diagram showing the shape of the cap of the carpule.
Sur ce dessin, on a représenté en (40) le porteconteneur, analogue au porte-carpule (4) du brevet principal, sauf en ce qui concerne sa portion antérieure. Ce porte-conteneur est de forme générale cylindrique, et constitue un logement dans lequel sont disposés
- un conteneur prévu pour contenir un produit pâteux, désigné par la référence générale (41) et comprenant un corps principal cylindrique (42), à paroi relativement épaisse, et une canule effilée (43), dépassant à l'extrémité antérieure (44) du porte-conteneur, ce conteneur est obturé à sa partie postérieure par un bouchon élastique (45)
- un piston auxiliaire (46) ayant le même diamètre que le bouchon (45), et dont la partie postérieure (47) fait saillie à l'extérieur du porte-conteneur, de manière à venir au contact du piston principal (12) (non représenté car conforme au brevet principal) au moment de l'accrochage dudit porteconteneur au corps de la seringue par (Il). Ce piston auxiliaire est repoussé vers l'arrière par un ressort (48) prenant appui, à l'avant sur une bague (49) logée dans le porte-conteneur et immobilisée contre tout déplacement axial vers l'avant par un épaulement (50) coopérant avec un retard (51) correspondant du porte-conteneur, et à l'arrière sur un épaulement (52) du piston auxiliaire ; le piston est donc, au repos, dans la position représentée sur le dessin.In this drawing, there is shown in (40) the container holder, similar to the cartridge holder (4) of the main patent, except as regards its anterior portion. This container carrier is of generally cylindrical shape, and constitutes a housing in which are arranged
- a container intended to contain a pasty product, designated by the general reference (41) and comprising a cylindrical main body (42), with a relatively thick wall, and a tapered cannula (43), protruding at the anterior end (44) of the container carrier, this container is closed at its rear by an elastic plug (45)
- an auxiliary piston (46) having the same diameter as the plug (45), and the rear part (47) of which projects outside the container carrier, so as to come into contact with the main piston (12) ( not shown as conforming to the main patent) at the time of attachment of said container holder to the body of the syringe by (II). This auxiliary piston is pushed backwards by a spring (48) bearing, at the front on a ring (49) housed in the container carrier and immobilized against any axial displacement forwards by a shoulder (50) cooperating with a corresponding delay (51) of the container carrier, and at the rear on a shoulder (52) of the auxiliary piston; the piston is therefore, at rest, in the position shown in the drawing.
Le conteneur (42), ne pouvant être introduit dans le porte-conteneur par l'arrière, compte-tenu de la présence du piston auxiliaire (40), est mis en place par une lumière pratiquée longitudinalement dans le porte-conteneur, depuis son extrémité antérieure (44) jusqu'à hauteur du rebord (51). A cet effet, la bague (49) présente un champ biseauté (54) ayant pour rôle à la fois de faciliter cette insertion et de maintenir ensuite le conteneur en place. The container (42), which cannot be introduced into the container carrier from the rear, taking into account the presence of the auxiliary piston (40), is put in place by a light made longitudinally in the container carrier, from its anterior end (44) up to the edge (51). To this end, the ring (49) has a beveled field (54) having the role of both facilitating this insertion and then holding the container in place.
Le fonctionnement du dispositif est identique à celui du brevet principal. Le porte-conteneur garni d'un conteneur étant accroché au corps de la seringue par application d'une pression manuelle, l'utilisateur fait avancer pas à pas 4 piston principal (12), qui transmet son déplacement au piston au xiliaire (46) en opposition au ressort (48). Le piston auxiliaire arrive au contact du bouchon (45), et, poursuivant sa course unidirectionnelle, repousse progressivement ce bouchon dans l'intérieur du conteneur (41). Le bouchon joue alors à son tour le rôle d'un piston vis à vis du produit pâteux qui est progressivement refoulé vers la canule (43) d'où il est lentement expulsé dans sa zone d'utilisation. Par exemple, par une série de pressions sur le levier (3) de la seringue, l'utilisateur pourra, sans effort, refouler un amalgame pâteux dans une cavité dentaire. The operation of the device is identical to that of the main patent. The container carrier lined with a container being attached to the body of the syringe by application of manual pressure, the user advances step by step 4 main piston (12), which transmits its movement to the piston to the xiliary (46) in opposition to the spring (48). The auxiliary piston comes into contact with the plug (45), and, continuing its unidirectional stroke, gradually pushes the plug back into the interior of the container (41). The stopper then plays in turn the role of a piston with respect to the pasty product which is gradually pushed back towards the cannula (43) from where it is slowly expelled into its zone of use. For example, by a series of pressures on the lever (3) of the syringe, the user will be able, without effort, to push back a pasty amalgam into a dental cavity.
La variante de la figure 2 montre une modification de la tête (44') du porte-conteneur, permettant l'utilisation d'une canule (43') oblique par rapport à l'axe général du dispositif. The variant of Figure 2 shows a modification of the head (44 ') of the container carrier, allowing the use of a cannula (43') oblique to the general axis of the device.
Si l'on se réfère maintenant à la figure 3, on voit que dans la portion antérieure (50) du porte-carpule (4) du brevet principal est disposé un manchon (51) qui entoure l'aiguille (7) depuis le fond de l'embout (6) jusqu'au bouchon de caoutchouc (8) de la carpule (5). Comme on le boit, le manchon (51) présente à l'arrière une forme évasée, telle qu'il prend appui sur la face avant du porte-carpule (4), tout en possédant un appendice (52) repoussant le bouchon (8) autour de l'aiguille (7). Referring now to Figure 3, we see that in the anterior portion (50) of the cartridge holder (4) of the main patent is disposed a sleeve (51) which surrounds the needle (7) from the bottom from the nozzle (6) to the rubber stopper (8) of the cartridge (5). As we drink it, the sleeve (51) has a flared shape at the rear, such that it bears on the front face of the cartridge holder (4), while having an appendage (52) pushing the plug (8) ) around the needle (7).
Cet appendice (52) a pour premier objet d'empêcher ce bouchon de se courber sous l'influence de la pression du liquide, ce qui risquerait de provoquer une déchirure du bouchon lors de sa pénétration par l'aiguille, surtout dans la version coudée (figure 2 du brevet principal). The first object of this appendage (52) is to prevent this plug from bending under the influence of the pressure of the liquid, which would risk tearing the plug when it penetrates the needle, especially in the angled version. (Figure 2 of the main patent).
Au surplus, quand la pression du liquide contenu dans la carpule augmente, au moment de l'utilisation, la résultante
des forces de pression s'exerçant sur le bouchon (8) se décompose comme le montre la figure 4 en une force F1 s' exerçant obliquement et une force F2, s'exerçant vers#l'axe, c'est-à-dire vers l'aiguille. En d'autres termes, le bouchon (8), au moment de l'utilisation, appuie très fortement sur l'aiguille, ce qui contribue à éviter les fuites. In addition, when the pressure of the liquid contained in the cartridge increases, at the time of use, the resulting
pressure forces exerted on the plug (8) decomposes as shown in FIG. 4 into a force F1 exerted obliquely and a force F2, exerted towards the axis, that is to say towards the needle. In other words, the stopper (8), at the time of use, presses very strongly on the needle, which contributes to preventing leaks.
Claims (4)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8312932A FR2560050B2 (en) | 1983-08-03 | 1983-08-03 | DENTAL SYRINGE FOR INTRA-LIGAMENTARY INJECTIONS |
| EP83440046A EP0109913A3 (en) | 1982-11-03 | 1983-09-07 | Dental syringe for intra-ligament injections |
| US06/547,768 US4581022A (en) | 1982-11-03 | 1983-11-01 | Dental syringe |
| BR8306058A BR8306058A (en) | 1982-11-03 | 1983-11-03 | DENTAL SYRINGE FOR INTRA-LIGAMENTARY INJECTIONS |
| KR1019840002141A KR860002198B1 (en) | 1983-08-03 | 1984-04-23 | Pressure-boosting dental syringe |
| AU31338/84A AU3133884A (en) | 1983-08-03 | 1984-07-31 | Dental paste syringe |
| US06/906,641 US4710178A (en) | 1982-11-03 | 1986-09-11 | Precision injection system and method for intraligmental anesthesia |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8312932A FR2560050B2 (en) | 1983-08-03 | 1983-08-03 | DENTAL SYRINGE FOR INTRA-LIGAMENTARY INJECTIONS |
| FR8411932A FR2568128B2 (en) | 1982-11-03 | 1984-07-25 | SYRINGE FOR THE INJECTION OF LIQUID PRODUCTS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2560050A2 true FR2560050A2 (en) | 1985-08-30 |
| FR2560050B2 FR2560050B2 (en) | 1989-07-21 |
Family
ID=26223546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8312932A Expired FR2560050B2 (en) | 1982-11-03 | 1983-08-03 | DENTAL SYRINGE FOR INTRA-LIGAMENTARY INJECTIONS |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2560050B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112739400A (en) * | 2018-09-26 | 2021-04-30 | 苏尔寿混合技术有限公司 | Dispensing outlet, dispensing system, method of using a dispensing system, injection mould and method of producing a dispensing outlet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3063450A (en) * | 1959-01-02 | 1962-11-13 | Myerson Tooth Corp | Syringe |
| US4330280A (en) * | 1981-04-09 | 1982-05-18 | Dentsply Research & Development Corp. | Ejector holder for capsule-like cartridge |
-
1983
- 1983-08-03 FR FR8312932A patent/FR2560050B2/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3063450A (en) * | 1959-01-02 | 1962-11-13 | Myerson Tooth Corp | Syringe |
| US4330280A (en) * | 1981-04-09 | 1982-05-18 | Dentsply Research & Development Corp. | Ejector holder for capsule-like cartridge |
| US4330280B1 (en) * | 1981-04-09 | 1985-11-05 | ||
| US4330280B2 (en) * | 1981-04-09 | 1989-12-05 | Ejector holder for capsule-like cartridge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112739400A (en) * | 2018-09-26 | 2021-04-30 | 苏尔寿混合技术有限公司 | Dispensing outlet, dispensing system, method of using a dispensing system, injection mould and method of producing a dispensing outlet |
| US12083328B2 (en) | 2018-09-26 | 2024-09-10 | Medmix Switzerland Ag | Dispensing outlet, dispensing system, method of using a dispensing system, injection mold and method of producing a dispensing outlet |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2560050B2 (en) | 1989-07-21 |
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