SU1184542A1 - Apparatus for prolonged liquid injections - Google Patents

Description

The invention relates to medical technology, in particular to devices for long-term injections, and can be used to treat a pathological cavity, for example, a tuberculosis cavity.

The aim of the invention is the irrigation of the walls of the tuberculosis cavity in the inspiratory phase.

FIG. 1 shows the device, general view, section; see 2 - a device filled with a medicinal substance, fada expiration; see 3, too, inhalation phase.

A device for continuous liquid-15 injections contains chamber 1, walls 2 of which are made of elastic polymer, for example thermoplastic, chamber 1 is filled with medicinal liquid 3 through tube 4 with ni-20 one-piece valve 5. Chamber 1 is fixed on base 6, inside of which is located hydraulic valve consisting of a cone valve 7 and a curved channel 8. Valve 7 25

fixed in the sleeve 9, which is threaded into the lateral hole · 10 of the base 6, the valve 7 is pressed by the coil spring 11 to the funnel 12 located at the beginning 30 of the curved channel 8. Above the valve 7 there is a hole 13 connecting the chamber 1 with the funnel 12. The valve 7 blocks access of fluid 3 to channel 8. Elastic membrane 14, '35

fixed in the base of the valve 7, seals the side hole 10.

At the exit of the curved channel 8 there is a connector consisting of a hollow screw 15 and a nut 16. A catheter 17, in 40 bases of which there is a round protrusion 18, is inserted into the channel 8 up to the stop and secured with a nut 16. K

The base 6 is attached to a ring 19 of dense polymer, the base of which is covered with porous polymeric material 20. There are ears 21 and 22 on the opposite side walls of the device. One of the ears 21 is fixed in the base 6, and the other ear 22 is connected through a rigid leash 23 to the valve base 7

The ears 21 and 22 are attached to the ends of the outer belt 24, the length of which can be adjusted using buckle 25 (Fig. 1).

A device for continuous liquid injection is used as follows.

Initially, a transthorical catheter 17 is inserted into the tuberculosis cavity 26. The base of the catheter 17 is inserted into the channel 8 and pressed against the nasty 16. After that, the device is fixed on the patient's chest 27 (Fig. 2 and 3). Tensioning the chest belt 24 regulates the operation, the valve 7 and ensure that during the expiration phase the valve 7 blocks the access of the liquid 3 to the channel 8, as shown in FIG. 2. When inhaling, air enters the cavity 26 through the draining bronchi 28, its volume increases and the walls are distributed. As a result of an increase in the chest volume, the chest belt 24 pulls over the leash 23 the valve 7 from the wall of the funnel 12 and the liquid medication 3 under pressure in the chamber 1 is injected through the holes 29 made in the wall of the catheter 17 into the cavity 26 irrigating its walls (Fig. 3). When this medicinal substance is processed and hard-to-reach sections 30 of the cavity 26, opened during inhalation.

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Claims (1)

DEVICE FOR LONG LIQUID INJECTIONS, containing a chamber with a stopper filled with pressurized fluid and a connecting catheter with a valve, which is equipped with a device for the purpose of irrigating the walls of the tuberculosis cavity in the inspiratory phase a chest belt connected to a clap that is installed between the chamber and the catheter. 5TS 1184542 1 1184542 2