SU1410986A1 - Apparatus for introducing medicinal preparations - Google Patents

Abstract

The invention relates to medical technology. The purpose of the invention is the automatic sampling of given doses of the reparat. The device comprises a syringe 1 fixed in clamps 2 and 3 located on the guide 4 and the front support 5 of the lead screw 6, the rear support 7 of the screw 6, the nut 8 connected to the plunger rod 9 with the figure groove 10, the reed switches of end positions 11 and 12, a control magnet 13, an anchor wheel 14, anchors 15 and 16, graduation divisions 17, a controllable generator 18, a control unit 19 connected to it, and electromagnets 20 and 21. After installing the syringe in the clips 2 and 3 the plunger 9 is inserted into the shaped groove 10 of the nut 8 and the frequency of the generator 18 is selected, which and to provide a predetermined input rate of the drug or taking a sample fluid. 2 Il.

Description

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The invention relates to medical technology, in particular to devices for administering drug prenaratov, and can be used for introducing last days at a given speed, as well as for sampling a liquid.

The purpose of the invention is the automatic collection of prescribed doses of nrenarate.

FIG. 1 shows the structure of the proposed device; in fig. 2 - control unit.

A device for the introduction of medicinal prenaratov contains shnrits 1, fixed niiiii in clamps 2. and 3, located on the guide 4 and the front onor 5 of the ho- loisoro screw 6, the rear support 7, the running shaft 6, the nut 8 connected to the stem plun- / ksra 9 with noMonibio ()) igurpogo groove 10, herx) 1H) 1 11 and 12 end positions, unrav- ered, -1 magnet 13, uper wheel 14, as well as anchors 15 and 16, calibration marks. 1Cn11 and 17, controlled by | -generator 18, co-uiiiennbiii with ppm b; wc 19 control and electric ipoMai Hnibi 20 p 21.

The control unit (Fig. 2) contains a transiioTop VTI, -) M1ggter, which is connected to iMHiiofi -,; i К (); 1 collector - with normal p; i and) micron I 1m co1gaktami K1-2, K2-2 and k .iodpm Lp.ch V Dl, the anode of which is connected to the 1HMI with o.chipm pz conclusions windings of the relay K1, K2. the other one 1. which is connected to one pz normally open contact of relay K1 I and K1 2, respectively. Nor- nia. ibHo open contacts K1 - 1 and K1 2 speed pad with other contacts of buttons S1. S2, respectively, and the S3 C () button (with a single co1G1 act. With bus -bU).

Block ii (;; iii, yupn on chain 22 is connected to, -iK) 4ai () contact of the reed switch 12, .ii vroi i kppsg, 1spn connected to the button S2 and 1orm: 1.1X10 p ;;; With an open contact K2-1 (i .-), ;; i, H (j penny 23 is connected to a normal. contact 1H) m reed switch 12, and the other; pm 1 () 11ts.m in b.kzho with S3 button; by

L.sMiii 21 .h) sdpnep with reed switches 11, and the other 1h () finger circuit - with the button SI and normal iio (Open contact K1 - 1 block; 1and) circuit 25 is connected g normally for m.kpu- contact reed switch 11, and the other end with the S3 button of the unit, via connection circuit 26 with switching contact K1 2 units to one of the terminals of the electromagnet 20: connected to circuit iHniioit П1гган11 of the unit, and the other end to one of the outputs of electromagnets 20 and 21: via circuit 27: but Pepp 28 is connected to the switching unit ixoHKiKTOM K2 2 blocks and one pz vnn) - loii -), 1oct) om1 nit 21: ncini 29 soe-dipp with base trapsis 10 |) a block with a generator 18.

X cTpoiicrBo paoi / rac i with / yudh ypi mi 11oslo ustapo: -and 1 pnfi: - in clamps 2 and 3 ycTpciiic 1 and a plow stick head, 9 is entered

into the shaped groove 10 of the nut 8. The frequency of the generator 18 is selected, which would provide the desired rate of drug injection or fluid sampling.

The device is connected to the mains, the button S1 is pressed (Fig. 2), and the relay K1 is activated and through the contacts K1 - 1 becomes self-locking provided that the contacts of the reed switch 11 are closed and the circuits 24 and 25 are connected, i.e. The gear nut is not in the extreme left position. This closes the contacts K1-2 of the relay K1 and from the generator 18 through the circuit 29 through a transistor switch and the contacts K1-2 to the winding of the electromagnet 20 to

5 circuit 26 pulses will be applied. The electromagnet 20 acts on the anchor 15, which causes the anchor wheel 14 to rotate, rigidly connected to the lead screw 6, which is paired with the nut 8 sliding along the guide 4,

 converts rotary motion into offensive. The nut 8 acts on the plunger shaft 9 of the syringe 1. This effect can be two-sided, since the nut 8 also has a shaped groove 10, with which the influence is transmitted in two directions. At the moment when the nut 8 reaches the leftmost position, the control magnet 13 will, by its effect on the reed switch 11, open the power supply of the relay K1 (circuits 24 and 25). Relay K1 resets and its contacts

0 K1-1 and K1-2 open and, at a value of 26, the electromagnet 20 will no longer receive pulses and the forward movement of the nut 8 will cease. If it is necessary to stop introducing or sampling in an intermediate position, button S3 is pressed, relay K1 or K2 is de-energized, they are reset, and electromagnets 20 and 21 do not nest through the corresponding contacts the pulses from the generator 18 through the switch VT1.

0

To ensure the nut 8 is retraced and, accordingly, the plunger 9 of the syringe 1 corresponds to the taking of a liquid sample, the S2 button of the K2 relay is pressed, the reed of the normally closed contacts of the reed switch 12 through the chains 22 and 23 is self-locking . The K2-2 contacts of the K2 relay are closed and the pulses from the generator 12 but the circuit 29 through the transistor switch VT1 and the contacts K2-2

0 circuit 28 is postunayed on an electromagnet 21, which by its action on the anchor 16 rotates the anchor wheel 14 and rigidly connected with it, the lead screw 6. Rotation occurs in the direction opposite to the described trimer, since the anchors 16 and 15 are diametrically . When the nut reaches the extreme right end, the control magnet 13 with its effect. Opens the contacts.

Kon 12 and de-energizes relay K2, its contacts K2-1, K2-2 open. The electromagnet 21 ceases to receive pulses, the rotation of the anchor wheel 14 and the driving shaft 6 is stopped, and the forward movement of the nut 8 and the plunger shaft 9 is stopped, i.e. liquid sampling is stopped.

With the help of graduation divisions 17 on the guide anchor wheel 14, you can inject drugs with a completely filled syringe 1, and, after having installed the nut 8 against the corresponding label, with a syringe filled to the specified value.

Claims (1)

Invention Formula A device for administering drugs, comprising a syringe, the plunger pivot of which is connected to a drive including an anchor wheel and a first anchor cooperating with it, a drive stroke regulator containing a generator and a first electromagnet connected to a bottom, characterized by providing automatic sampling of prescribed doses of the drug, the drive stroke speed regulator includes a second electromagnet, the input of which is connected to the second input of the second relay, the output of which is connected to the collector of the transistor, the second output of the second relay and the cathode of the diode, the anode of which is connected to the first inputs of the second relay , by the input of the second switch, Q the first input of the first relay, the input of the first switch, the output of the second electromagnet and the output of the first electromagnet, whose input is connected to the second input of the first relay, and the first output of the first relay connected to the output of the first switch and the input of the first reed switch the output of which is connected to the output of the second reed switch and the input of the third switch, the output of which is connected to the emitter of the transistor and put the potential of the power supply source, and the base of the transistor is connected to the output of the generator and the first output of the second relay with the output of the second switch and the input of the second reed switch, the magnet is controlled yup1y gerko- newly installed on the running nut.