JPS5939485Y2 - cartridge syringe - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a Kerr I/Ridge syringe for dispensing a fluid such as a medicine sealed in a glass cartridge or injecting a fluid such as blood into the cartridge. This invention relates to a cartridge syringe useful as a convenient syringe for injecting impression material enclosed in a car I ridge around teeth when taking tooth impressions in the combined impression method for caries treatment in dentistry. .

In a conventional similar cartridge syringe, as shown in Fig. 1, the cartridge storage part A has many wide open parts a and b to facilitate the attachment and detachment of the cartridge, and the entire syringe is made of metal and has horizontal sides. It had been taken.

For this reason, even if the impression material is maintained at the optimum operating temperature in a cartridge bath before use, when the cartridge is loaded into the syringe during use, the heat in the cartridge quickly escapes from the syringe due to outside air or conduction. The disadvantage was that the optimum tooth profile could not be obtained due to temperature changes.

Furthermore, there are also accidents in which the glass cartridge is torn during injection, and in such cases, with conventional syringes, fragments of the cartridge may form a boat from the open portion of the syringe into the patient's L1.

However, in the known syringe, the needle B extends straight from the cartridge housing A, making it difficult to inject into the back side of the teeth.

The present invention is a car 1 aimed at eliminating such drawbacks.
- Provides a Ritsuji syringe.

In FIGS. 2 to 4, the syringe of the present invention has an operating member 10.
, a central body member 12 , a cartridge storage member 14 ,
It is empty.

The operating member 10 is a rod 20.A rod 20.A handle 16 is fixed to one end and a cartridge engaging piece 18 is screwed to the other end. It has a cover member 22 through which the rod 20 is inserted, a spring 24, and a cartridge holding member 26.

The cover member 22 receives one end of the spring 24 on the inner surface of one end, and has a thread 28 cut on the inner surface of the other end, and the member 26 has a hole 30 in the center thereof into which the rod 20 is fitted. A stepped hole 32 into which the cartridge engaging piece 18 fits is provided around the inner circumference thereof.

A conical wall 34 is formed from the reading tag 32 toward the inner edge.

A spring 24 is provided between the outer end of the holding member 26 and the cover member 22.
The central body member is provided with an external thread 36 at one end and a pair of opposed grooves 38 having a generally angular shape at the other end.

Further, an auxiliary member 40 having a pair of protrusions projecting in the diametrical direction is loosely fitted into the central portion thereof.

The car I ridge storage member 14 is attached to one end of the central body portion 1.
A needle 44 has a pair of protrusions 42 that are slidably engaged with the L-shaped groove 38 of No. 2, and has a needle 44 bent at a predetermined angle at the other end.
is fixed.

The member 14 is preferably made of transparent synthetic resin and integrally shaped into a tubular shape.

The operating member 10 and the body member 12 are screwed together via the internal thread 28 of the cover member 22 and the external thread of the body member 12.The auxiliary member 40 is connected to the stepped portion 46 of the body member and the cover member 12. 22
It is interposed between.

In the normal state, the holding member 26 is pressed against the annular inner surface protrusion 48 of the body member 12 to the left in FIG. has been done.

In order to facilitate the screwing operation between the cover member 22 and the body member 22, a number 50 is attached to the knurling I on the outer surface of the cover member 22.

In use, a predetermined cartridge C is stored in the storage member 14.

Next, the protrusion 42 of the storage member 14 is inserted into the cut groove 3 of the body member 12.
8, press the storage member 14 toward the body member 12.

For this reason, the end of the cartridge lip whose tip slightly protrudes from the storage member 14 is connected to the conical wall 3 of the cartridge storage member 26.
4 against the spring 24 in the direction shown in FIG.

The conical wall 34 then correctly centers the car I ridge.

Thereafter, the housing member 14 is rotated in the groove 38 of the body member 12 so that the housing member 14 does not separate from the body member 12, and the protrusion 42 of the housing member 14 is fitted into the recess 52 of the groove 38.

This completes the identification of the Kerr River Ridge, inserts the needle 44 into the patient's 11, and inserts the handle 16 of the operating member 10 into the auxiliary member 4.
When pushed in with the help of 0, the cartridge engaging part 18
presses against one end of the cartridge ridge and the seal at the other end of the cartridge is broken by needle 44 through which the contents of the cartridge are dispensed.

After use, the cartridge accommodating member 14 is removed from the body member 12 by performing the operation opposite to that used for mounting, and the cartridge C can be replaced to perform the next operation.

When drawing blood into the cartridge, it is sufficient to first engage a coiled wire, such as a corkscrew, attached to the cartridge engaging piece 18 with the lid of the cartridge lip, and then pull back the operating member 10. .

According to the present invention, the car I/ridge storage member 14 has a bag shape made of synthetic resin so as to completely surround the temperature-controlled car I/ridge, so there is no open part and there is no space around the cartridge. Because the cartridge does not use metal materials that transfer heat strongly, heat dissipation from the car I ridge is kept to a minimum, allowing for better workmanship, and even if the cartridge breaks during work, the fragments will not be removed. ``It's safe because it doesn't form a boat inside one.

Furthermore, in the present invention, the needle is bent at an appropriate angle, so it can easily touch the back side of teeth, allowing for accurate work.

This invention can be used not only for dental purposes but also as a car with little temperature change.
It is useful in many operations that require rigid syringing operations.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a known cartridge syringe, Fig. 2 is a perspective view of a device according to the present invention, Fig. 3 is an exploded perspective view of the device of the present invention, and Fig. 4 is a cross section of the cartridge syringe of the present invention. It is a diagram. Explanation of symbols, 10: Operation member, 12: Central body member, 14
: Force-torage storage member, 26: Car I/ridge holding member, 38: Cut groove, 42: Projection.

Claims (1)

[Claims for Utility Model Registration] By operating the operating member 10 through the central body member 12, a pressing force is applied to one end of the car I ridge C stored in the cartridge storage member 14, thereby causing the needle member to A cartridge syringe that pushes out the fluid in the cartridge from the other end of the cartridge C through a rod 20 in which the operating member 10 has a handle 16 fixed to one end.
, a car I/ridge engagement piece 18 detachably attached to the other end of the rod 20, and an internal thread mounted on the rod 20 between the handle 16 and the cartridge engagement piece 18. 28, a cartridge holding member 26 resting on said bar 20 and having a conical section wall 34 at one end;
0 and the cartridge holding member 26, respectively, and the central body member 12 is
A generally L-shaped cut groove 38 is formed at one end, and a cover member 22 is formed at the other end.
An outer thread 36 is formed which can be screwed into the inner thread 28 of the
Further, an auxiliary member 40 is placed in the intermediate portion, and when the auxiliary member 40 screws together the outer nuclear screw 36 and the inner thread 28 of the cover member 22, movement in the axial direction is restricted, but movement around the axis is restricted. The cartridge storage member 14 is made of synthetic resin and has a cylindrical shape that completely surrounds the cartridge stored therein, with one end bent at a predetermined angle. The needle member 44 has a protrusion 42 at the other end for attaching the cartridge storage member 14 to the central body member 12.
2 is fitted into the L-shaped notch 8 of the central body member 12, the cartridge housing member 14 has a height that does not substantially protrude outward in the radial direction from the surface of the central body member 12, and the cartridge storage member 14 A cartridge in which the central body member 12, the auxiliary member 40, the cartridge engaging member 18, the cartridge holding member 26, the spring 24, the cover member 22, and the rod 20 can be easily disassembled from each other. Syringe.