SU1718971A1 - Device for introducing tablet under skin - Google Patents

Abstract

The invention relates to medicine and can be applied by implanting tableted preparations into the tissue. In order to prevent premature loss of the tablets when the floor is inserted, the needle 1 with the spring-loaded piston 7 and the figured notch 3 for placing the tablets is equipped with an outer tube 9 with a spring-loaded locking its position. 1 il.

Description

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00 About VI

The invention relates to medicine, more specifically to operative surgery, and can be applied when implanted into the tissue of preformed tablets.

A device is known comprising a tube, a stylet with a handle and a fixing unit for their relative position. The working end of the tube and the stylet is made in the form of a wedge, the edges of which have a sharpening angle of 40-50 °.

It is also known a device for puncture biopsy, containing a coaxial outer tube with a slit, having a cutting edge, and an internal stylet with a container for biopsy, the stylet having a longitudinal channel with a socket for a syringe, and the stylet and tube have relative position labels. channel, slot and capacity.

Also known puncture tool containing a cylindrical tubular needle with a toothed cutting edge at the working end and a cannula at the other end and provided with a second tubular needle placed in the first needle with a toothed cutting edge at the working end and a cannula at the other end.

The first needle at the working end has two coaxial lateral holes, and the working end of the second needle has two grooves made opposite one another.

It is also known technical solution, a device having a housing with a working part and a stem. The working part is made in the form of a pointed collet, and the piston is spring-loaded with a spring installed between the body and the rod from the side of the working part. In working condition, the stem is raised upward, while the spring is compressed. The drug is injected into the resulting cavity in the collet elements.

However, the known devices are not intended to implant tablet preparations into the tissue, which limits their functionality.

Closest to the present invention is a device containing a hollow needle with a piston-pusher, which is combined with a mechanism equipped with a return spring, or without it.

In the body of the needle there is a fig slit for fastening the cage with pills.

However, the working end of the needle is beveled, the lumen of the cavity is open from the side of the working end. This leads to the fact that when the working end is inserted into the tissue, the lumen clogs the latter and makes it difficult for the preparation to exit. To ensure the release of the drug should make great efforts, which leads to the violation of the integrity of the tablets. The piston is combined with a mechanism provided by a return spring. In connection with this, the tablets are not held by the piston, which causes them to skew, and if

the tablets are smaller in diameter than the lumen of the needle, and layering them on each other, which also makes their implantation more difficult and leads to integrity violation. In addition, in the needle lumen there is no stop for

0 fixation of tablets, which leads to the complexity of the design - the introduction of a special clip for the tablets, complicating the use of the device. The absence of an outer tube prevents the use of the device. for example, like a trocar.

The aim of the invention is to prevent premature precipitation of tablets upon their introduction into the tissue.

Figure 1 shows the device, the general view; figure 2 - the working end of the needle.

The device contains a hollow needle 1 with a deformed blind end 2 and a shaped notch 3. The working end of the needle (Fig. 2) is made with an insert 5 rotating on the axis 4,

5 fixed by a spring element 6. Inside the needle 1 a piston 7 with a spring 8 is placed, and outside the tube 9 is freely installed with a spring-loaded lock 10 its position.

0 The device is used as follows.

Under sterile conditions, a tabulated preparation is inserted into the body of the needle 1 through a shaped notch 3, which is fixed by the piston 7 by means of a presser. springs 8. The tube 9 is put on the needle T and secured by the retainer 10 in the position covering the figure cutout 3. Under aseptic conditions, a skin incision of up to 1 cm is made under the anesthesia, through which at an angle of 30-45 ° to a depth of 4-5 A needle 1 is inserted, the tube 9 is released and displaced towards the handle 11. Through the open-shaped notch 3, the piston 7 pushes the tablets into the fabric. After implantation, the device is removed from the tissue, a pressure band is applied along the wound canal, and one suture is applied to the wound. The skin is treated with a 5% iodine solution and

0 aseptic dressing is applied.

When using the device (Fig. 2), the tube 9 does not move to the stop, but only releases the spring element 6.

The use of the proposed technical solution reduces the time of implantation, reduces tissue trauma, the risk of infection, reduces the number of operations during the implantation process and prevents the destruction and loss of tablets.

Claims (1)

Claims An apparatus for administering tablets under the skin, comprising a cannula with a beveled end and a spring-loaded piston, characterized in that, in order to prevent premature loss of the tablets, upon insertion, it is provided with an outer tube installed on the needle with a spring-loaded locking its position, the needle is made with a blind end and has an open cut for placing tablets. Fig: 2