RU139351U1 - DEVICE FOR ADMINISTRATION OF A NEEDLE FOR INTRACROSIVE INJECTIONS OF MEDICINES AND BIOLOGICALLY ACTIVE SUBSTANCES - Google Patents

Abstract

A device for introducing a needle for intraosseous injection of medicinal and biologically active substances, having a needle with a stylet, characterized in that it is made of stainless steel and contains a lock with a locking ring on which the trigger is put on; a threaded barrel twisted at the distal end of the shutter; needle depth adjuster worn on a threaded barrel; a petal needle holder with a striker and a needle with a stylet inserted into the lumen of the shutter and held by ball clamps; and a spring worn on the proximal end of the hammer and fixed by a handle worn on the proximal end of the shutter.

Description

The device relates to medical equipment and can be used for intraosseous administration of drugs and biologically active substances in the treatment of various surgical diseases.

It is known to use devices with various designs for intraosseous injections, such as a device for intraosseous injections of gel preparations, which is a syringe with a hollow needle and a drive mechanism (Kulikov A.N., Litvinov S.D. Shatokhin V.D., 2004). In addition, it is known a device for intraosseous administration of drugs, consisting of a handle and a medical diagnostic bone marrow needle (Osipyan E.M., Nazarova A.A., 1997). However, the needles with a standard diameter used in this case do not allow the intraosseous biologically active substances to be introduced, which are a coarse suspension of cells.

Prototype

The closest in technical essence to the proposed utility model selected for the prototype is a pulse intraosseous device Bone Injection Gun manufactured by WaisMed Israel for intraosseous administration of drugs. The known device consists of a pulse spring and intraosseous needle, body.

The technical result of the proposed utility model is to minimize the risk of iatrogenic trauma by ensuring the required depth and the correct angle of needle insertion. The specified technical result is achieved by the proposed device for introducing a needle for intraosseous injection of medicinal and biologically active substances having a needle with a stylet. The proposed device differs from the previously mentioned analogue in that it is made of stainless steel and contains a shutter with a locking ring, on which the trigger is put on; a threaded barrel twisted at the distal end of the shutter; needle depth adjuster worn on a threaded barrel; a petal needle holder with a striker and a needle with a stylet inserted into the lumen of the shutter and held by ball clamps; and a spring worn on the proximal end of the hammer and fixed by a handle worn on the proximal end of the shutter.

The proposed intraosseous injector has a significant drawback: after a single use, the device is completely disposed of. The high cost of this device does not allow its wide use, although there are many people who need single or repeated intraosseous administration of drugs. The proposed utility model is made of stainless steel, is sterilized and reusable, simple enough to assemble.

The purpose of the proposed utility model is the development of a cost-effective device for intraosseous administration of medicinal and biologically active substances, which allows for instant intravascular access through the bone marrow of the metaphysis of large bones, which provides multiple administration, painlessness of the procedure.

Utility Model Essence

The device proposed as a utility model is shown in FIG. 1, which shows a replaceable needle 8, with stylet 9, a flap needle holder with a guiding striker 7, a spring 6, a lock with a retaining ring 3 with ball clamps 10, a threaded barrel 4 with a needle entry depth adjuster 5, trigger 2 and crank 1.

Device for intraosseous injection is used as follows.

We assemble the device. We put the trigger 2 on the shutter with the retaining ring 3, turn the threaded barrel 4 with the needle entry depth adjuster 5 clockwise to the distal end of the shutter 5. In the lumen of the shutter we place a needle-shaped needle holder with a hammer 7. which is held in its lumen by shutter ball clamps 10. Further install the spring 6 on the proximal end of the hammer 7, which is fixed by the handle 1.

Observing asepticism, we take the handle 1 of the device so that the index finger is on the trigger 2, then we attach the needle 5 insertion depth adjuster to the point selected for injection at an angle of 90 °. Slowly trigger the trigger 2 from right to left, until the bone is metaphysical. Then, leaving the needle 8 in the bone, we attach a syringe with a medicinal or biologically active substance to the cannula, and make an injection.

The positive effect of using the proposed utility model

The proposed device allows you to get instant intravascular access, facilitating the introduction into the bone of medicinal and biologically active substances, thereby reducing the psychoemotional and pain factor in the patient. The device is easy to operate. It is made of stainless steel and must be sterilized and reused.

Sources of information taken into account:

1. Kulikov A.N. et al. / RU 40187 U1, 09/10/2004 /.

2. Osipyan E.M. et al. / SU 2151564 C1, 06.27.2000 /.

3. The company Waismed, Israel-syringe-gun for intraosseous injection for children - http://3225625.ru/shop/group - prototype.

Claims (1)

A device for introducing a needle for intraosseous injection of medicinal and biologically active substances, having a needle with a stylet, characterized in that it is made of stainless steel and contains a lock with a locking ring on which the trigger is put on; a threaded barrel twisted at the distal end of the shutter; needle depth adjuster worn on a threaded barrel; a petal needle holder with a striker and a needle with a stylet inserted into the lumen of the shutter and held by ball clamps; and a spring worn on the proximal end of the hammer and fixed by a handle worn on the proximal end of the shutter.

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