BE720694A - - Google Patents
Info
- Publication number
- BE720694A BE720694A BE720694DA BE720694A BE 720694 A BE720694 A BE 720694A BE 720694D A BE720694D A BE 720694DA BE 720694 A BE720694 A BE 720694A
- Authority
- BE
- Belgium
- Prior art keywords
- needle
- bevel
- edge
- blunt
- rear edge
- 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
- A61M5/31—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
- A61M5/3286—Needle tip design, e.g. for improved penetration
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/19—Constructional features of carpules, syringes or blisters
- A61M2205/192—Avoiding coring, e.g. preventing formation of particles during puncture
- A61M2205/195—Avoiding coring, e.g. preventing formation of particles during puncture by the needle tip shape
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)
Description
<Desc/Clms Page number 1>
Aiguille tubulaire -pour injections.
, L'invention concerne les aiguilles tabulaires pour injections, dont l'extrémité est biseautée pour former la pointe de l'aiguilla.
Tel qu'on le fait 'actuellement, le biseau de ces aiguilles présente, outre un tranchant extérieur au bord avant- un tranchant intérieur au bord arrière. Lorsque, pour prle- ver d'une fiole le liquide à in j ecter, on perce au moyen de l'aiguille le bouchon de caoutchouc ou matière semblable qui .la ferme hermétiquement, le tranchant extérieur du bord avant du biseau découpe dans le bouchon une petite fente en arc-de- HM. 2/.
<Desc/Clms Page number 2>
EMI2.1
cercle et l'aisuille écarte nQrmaleuien'1n"laHL'UVtte' formée par -La fente.
Cependant, selon l'inclinaison de l'aiguille, il 'peut arri- ver que le tranchant du bord arrière du biseau coupe cotto languet te et la partie détachée risque d'obturer l'aiguille ou même de passer dans le liquide à injecter.
De même lorsqu'une aiguille pénètre la peau, elle peut en entraîner une parcelle à l'intérieur des tissus.
La présente invention évite ce risque.
A cet effet, le bord arrière du biseau de l'extrémité de l'aiguille est émoussé pour le rendre non tranchant, 'par exemple en équarrissant le biseau au bord arrière, ou en l'arrondissant.
Le dessin annexé représente à titre d'exemple deux for- mes d'exécution.
Les Figs. 1 et 2 sont des vues de l'extrémité d'une ai- guille courante, la Fig. 1 en coupe axiale et la Fig.2 en vue en plan; les Figs. 3 et 4 sont des vues en coupe axiale et en plan d'une aiguille modifiée suivant l'invention.
L'extrémité d'une aiguille tubulaire 1 se termine par un biseau 2 formant un bord tranchant avant 3 à l'extérieur et un bord tranchant arrière 4 à l'intérieur du biseau.
Suivant l'invention, le bord arrière 4 est émoussé afin de le rendre non tranchant et d'éviter ainsi qu'il puisse découper la matière du bouchon de la fiole ou la peau comme à l'emporte- pièce et en détacher une parcelle dont la pénétration dans l'ai- guille peut avoir des conséquences nuisibles.
Les Figs 3 et 4 montrent à titre d'exemple le bord ar- rière 5 du biseau équarri pour l'émousser et empêcher cet effet d'emporte-pièce. Dans le même but, le bord 5 peut aussi être arrondi..
Bien entendu, l'invention n'est pas limites à la forme d'exécution qui a été décrite et représentée à titre d'exemple, et on ne sortirait pas de son cadre en y apportant des modifications.
MDB. -
<Desc / Clms Page number 1>
Tubular needle -for injections.
The invention relates to tabular injection needles, the end of which is bevelled to form the point of the needle.
As presently done, the bevel of these needles has, in addition to an outer cutting edge at the leading edge, an inner cutting edge at the trailing edge. When, in order to withdraw the liquid to be injected from a vial, the stopper of rubber or similar material is pierced by means of the needle which closes it hermetically, the outer edge of the front edge of the bevel cut in the stopper a small arched slit of HM. 2 /.
<Desc / Clms Page number 2>
EMI2.1
circle and the gap separates nQrmaleuien'1n "laHL'UVtte 'formed by -The slit.
However, depending on the inclination of the needle, it may happen that the sharp edge of the rear edge of the bevel cuts off the tongue and the detached portion may block the needle or even pass into the liquid to be injected.
Likewise, when a needle penetrates the skin, it can entrain a piece of it inside the tissues.
The present invention avoids this risk.
For this purpose, the trailing edge of the bevel of the end of the needle is blunt to make it blunt, for example by squaring the bevel at the trailing edge, or by rounding it.
The appended drawing shows two embodiments by way of example.
Figs. 1 and 2 are views of the end of a running needle, FIG. 1 in axial section and FIG. 2 in plan view; Figs. 3 and 4 are views in axial section and in plan of a modified needle according to the invention.
The end of a tubular needle 1 ends in a bevel 2 forming a leading cutting edge 3 on the outside and a rear cutting edge 4 on the inside of the bevel.
According to the invention, the rear edge 4 is blunt in order to make it blunt and thus prevent it from being able to cut the material of the stopper of the vial or the skin as with a cookie cutter and to detach a portion thereof. penetration into the needle can have harmful consequences.
Figs 3 and 4 show by way of example the rear edge 5 of the bevel squared to dull it and prevent this punch effect. For the same purpose, the edge 5 can also be rounded.
Of course, the invention is not limited to the embodiment which has been described and shown by way of example, and one would not depart from its scope by making modifications thereto.
MDB. -
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE720694 | 1968-09-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE720694A true BE720694A (en) | 1969-02-17 |
Family
ID=3853497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE720694D BE720694A (en) | 1968-09-11 | 1968-09-11 |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE720694A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013124486A1 (en) * | 2012-02-24 | 2013-08-29 | Krones Ag | Removal device for removing liquids from containers |
WO2014137925A1 (en) * | 2013-03-06 | 2014-09-12 | Abbott Medical Optics Inc. | Atraumatic iol insertion cartridge opening |
-
1968
- 1968-09-11 BE BE720694D patent/BE720694A/fr unknown
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013124486A1 (en) * | 2012-02-24 | 2013-08-29 | Krones Ag | Removal device for removing liquids from containers |
CN103702925A (en) * | 2012-02-24 | 2014-04-02 | 克朗斯股份公司 | Removal device for removing liquids from containers |
RU2631382C2 (en) * | 2012-02-24 | 2017-09-21 | Кронэс Аг | Device for taking liquids from tanks |
CN103702925B (en) * | 2012-02-24 | 2018-06-12 | 克朗斯股份公司 | For from from container discharge fluid discharger |
WO2014137925A1 (en) * | 2013-03-06 | 2014-09-12 | Abbott Medical Optics Inc. | Atraumatic iol insertion cartridge opening |
US10265164B2 (en) | 2013-03-06 | 2019-04-23 | Johnson & Johnson Surgical Vision, Inc. | Atraumatic IOL insertion cartridge opening |
US11000368B2 (en) | 2013-03-06 | 2021-05-11 | Johnson & Johnson Surgical Vision, Inc. | Atraumatic IOL insertion cartridge opening |
US11717396B2 (en) | 2013-03-06 | 2023-08-08 | Johnson & Johnson Surgical Vision, Inc. | Atraumatic IOL insertion cartridge opening |
US12053368B2 (en) | 2013-03-06 | 2024-08-06 | Johnson & Johnson Surgical Vision, Inc. | Atraumatic IOL insertion cartridge opening |
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