CN116510118A - Automatic switching device of infusion apparatus - Google Patents

Abstract

The invention discloses an automatic switching device of an infusion apparatus, which relates to the technical field of medical appliances and comprises a main pipeline, wherein an infusion control pump is inserted into the middle part of the main pipeline, a sliding groove is formed in a plug, the plug is positioned at the sliding groove and is in sliding connection with a connecting pipe, two sides of the plug are both in sliding connection with sliding rods, the outer sides of the sliding rods are fixedly connected with contact pins, and two sides of the connecting pipe are both in sliding connection with inserting rods, and the automatic switching device has the beneficial effects that: through inserting the plug rubber stopper to press the inserted bar, make the inserted bar slide into the part of connecting pipe, and upwards promote the connecting pipe, make the inserted bar push up the connecting pipe against the plug, continue upwards push the connecting pipe, until the connecting pipe reaches the region of jack, the inserted bar just blocks into the jack, make the connecting pipe unable removal again, in this process, the top extrusion slide bar of connecting pipe, make the slide bar take the contact pin to remove, make the contact pin insert into the rubber stopper, so can effectually prevent that the plug drops, thereby avoid the plug to drop into the ground in cause the pollution.

Description

An automatic switching device for an infusion set

technical field

The invention relates to the technical field of medical devices, in particular to an automatic switching device for an infusion set.

Background technique

When performing infusion in a hospital, it is necessary to use an infusion set to perform infusion, and to promote patient recovery through drug infusion.

For example, the publication number is "CN 215023763 U" "An automatic switching device for infusion sets", which mainly sets infrared sensors and electric clips. When the liquid in one of the infusion tubes is finished and the gas passes by, the infrared sensor It senses the passage of gas and transmits the signal to the controller of the infusion control pump to control the opening of the electric clip of another infusion tube, which can automatically open another infusion. The plug at the top of the infusion tube needs to be inserted into the rubber plug at the bottom of the medicine bag, but in During the actual infusion process, the plug at the top of the infusion tube may be accidentally detached from the rubber stopper and fall off from the rubber stopper, which will cause the plug at the top of the infusion tube to fall into the ground and cause pollution, which may require replacement of the infusion set And reconfigure the liquid medicine, resulting in a waste of resources, and may arouse the patient's emotions.

Therefore, an automatic switching device of an infusion set is designed here to solve the problem that the plug at the top of the infusion tube may fall off from the rubber stopper at the bottom of the medicine bag.

Contents of the invention

The object of the present invention is to provide an automatic switching device for an infusion set, so as to solve the problem in the above-mentioned background art that the plug at the top of the infusion tube may fall off from the rubber stopper at the bottom of the medicine bag.

In order to achieve the above object, the present invention provides the following technical solutions: an automatic switching device for an infusion set, comprising a main pipe, an infusion control pump is plugged into the middle part of the main pipe, and the infusion control pump is provided with an infrared sensor, And the infusion control pump is fixedly connected with a PLC controller, the bottom end of the main pipeline is connected with an injection tube through a connecting mechanism, the bottom end of the injection tube is inserted with an injection needle, and the top end of the main pipeline is connected through a connecting mechanism. A connecting main pipe is connected, the top of the connecting main pipe is plugged with several branch pipes, the tops of several of the branch pipes are connected with connecting pipes, the top of the connecting pipes is provided with plugs, and the connecting pipes are provided with electric valves , the plug is provided with a chute, the plug is slidably connected to the connecting pipe at the chute, both sides of the plug are slidably connected to a slide bar, the outer side of the slide bar is fixedly connected to a pin, and the connection Both sides of the tube are slidably connected with inserting rods, and the first spring is fixedly connected between the inserting rod and the connecting pipe. Jacks are opened on both sides of the plug. When the device is in use, several plugs are inserted into the Put it into the external medicine bag, and hang the outside medicine bag on the bracket used to place the medicine bag outside, and insert the injection needle into the patient's vein, which is convenient for injection to treat the patient, and can be controlled by the infusion control pump. The flow rate and time of infusion, when infusion, first let one of the electric valves open for infusion, when the drug injection of the medicine bag is completed, the infrared sensor senses the gas passing, and transmits the signal to the PLC controller of the infusion control pump , the PLC controller controls to open the next electric valve, so that the medicine in the next medicine bag can flow in and be infused, so that the nurse teacher does not need to change the medicine bag frequently, and the design of the connection mechanism, when the plug is inserted into the rubber stopper of the medicine bag , by inserting the plug into the rubber plug, and pressing the plunger so that the plunger slides into the part of the connecting pipe, and pushing the connecting pipe upwards so that the plunger is against the plug, continue to push upwards into the connecting pipe until the connecting pipe reaches In the area of the socket, the insertion rod just snaps into the socket, so that the connecting tube can no longer move. In the process, the top of the connecting tube squeezes the sliding rod, so that the sliding rod moves with the pin, so that the pin is inserted into the rubber plug middle.

Preferably, a small rod is fixedly connected to the top of the sliding rod, and a second spring is fixedly connected to the small rod, and the end of the second spring away from the small rod is fixedly connected to the plug, and under the elastic force of the second spring, Make it so that the pins do not protrude from the plug when the top end of the connecting tube is not squeezing the slide bar.

Preferably, the bottom end of the slide bar is provided with a chamfer, and the top end of the connecting pipe is provided with an inclination angle, the design of the inclination angle and the chamfer, when the top end of the connecting pipe squeezes the slide bar, it is convenient for the slide bar to Move side to side with pins.

Preferably, the inner and outer sides of the connecting pipe are fixedly connected with connecting rings, and the top of the connecting ring is bonded with a first sealing ring. When the insertion rod is inserted into the socket, the top of the first sealing ring and the plug The bottom end contacts and is squeezed by the connecting ring and plug.

Preferably, the connection mechanism includes a connection sleeve, the connection sleeve is plugged into the main pipe, the inner side of the connection sleeve slides through a connection block, the connection block is threaded with a threaded pipe, and the two sides of the connection sleeve Both sides of the connection block are provided with a restriction mechanism, and small holes are opened on both sides of the connection block. The rod is inserted into the small hole, so that the connecting block cannot slide, and when dismounting, the threading rod of the limiting mechanism is kept away from the small hole, so that the connecting block can be easily taken out.

Preferably, the restricting mechanism includes a large rod, which is inserted on both sides of the connecting sleeve, the inner side of the large rod is slidably connected to the penetrating rod, and the inner wall of the large rod is slidably connected to a connecting plate, and the connection One side of the plate is fixedly connected with a third spring, and the end of the third spring away from the connecting plate is fixedly connected with the big rod. Before the connecting block slides into the connecting sleeve, the connecting rod is pulled outward by hand to facilitate the sliding of the connecting block. Insert the connecting sleeve, after the connecting block is inserted into the connecting sleeve, under the elastic force of the third spring, the connecting plate moves with the threading rod, so that the threading rod can be inserted into the small hole.

Preferably, the inner wall of the connecting sleeve is bonded with a second sealing ring, and by turning the threaded pipe by hand, the top end of the connecting block presses the second sealing ring under the action of the thread.

Compared with the prior art, the beneficial effect of the present invention is: when the plug is inserted into the rubber stopper of the medicine bag, by inserting the plug into the rubber stopper and pressing down the insertion rod, the insertion rod slides into the part of the connecting tube, And push the connecting tube up so that the insertion rod is against the plug, and continue to push the connecting tube upward until the connecting tube reaches the area of the socket, and the insertion rod just snaps into the socket, so that the connecting tube can no longer be moved. During this process, The top of the connecting pipe squeezes the slide bar, so that the slide bar moves with the pins, so that the pins are inserted into the rubber plug, which can effectively prevent the plug from falling off, thereby preventing the plug from falling into the ground and causing pollution.

Description of drawings

Fig. 1 is a schematic view of the structure of the main body of the present invention;

Fig. 2 is a partial cross-sectional schematic view of the plug of the present invention;

Fig. 3 is a partial enlarged view of A place of Fig. 2 of the present invention;

Fig. 4 is a schematic diagram of the partial structure of the connection mechanism of the present invention;

Fig. 5 is a schematic diagram of a partial mechanism of the limiting mechanism of the present invention;

Fig. 6 is a schematic partial sectional view of the infusion control pump of the present invention;

Fig. 7 is a partial enlarged view of B in Fig. 1 of the present invention.

In the figure: 1. Main pipeline; 2. Infusion control pump; 3. Infrared sensor; 4. PLC controller; 5. Connection mechanism; 6. Injection tube; 7. Injection needle; 10, connecting pipe; 11, plug; 12, chute; 13, sliding bar; 14, pin; 15, inserting rod; 16, first spring; 17, jack; 18, small rod; 19, second spring ;20, connecting ring; 21, first sealing ring; 22, electric valve; 51, connecting sleeve; 52, connecting block; 53, threaded pipe; 54, limiting mechanism; 55, small hole; 56, second sealing ring; 541, big rod; 542, wear rod; 543, connecting plate; 544, the third spring.

Detailed ways

A clear and complete description will be made below in conjunction with technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, this embodiment provides an automatic switching device for an infusion set, including a main pipe 1, and the middle part of the main pipe 1 is plugged There is an infusion control pump 2, and the infusion control pump 2 is provided with an infrared sensor 3, and the infusion control pump 2 is fixedly connected with a PLC controller 4, and the bottom end of the main pipeline 1 is connected with an injection tube 6 through a connection mechanism 5, and the end of the injection tube 6 The bottom end is plugged with an injection needle 7, the top of the main pipe 1 is connected with a connecting main pipe 8 through a connecting mechanism 5, and a plurality of branch pipes 9 are inserted at the top of the connecting main pipe 8, and connecting pipes 10 are inserted at the top of several branch pipes 9. , the top of the connecting pipe 10 is provided with a plug 11, and the connecting pipe 10 is provided with an electric valve 22. When the device is in use, several plugs 11 are inserted into the external medicine bag, and the external medicine bag is hung on the outside for Place the medicine bag on the bracket, and insert the injection needle 7 into the patient's vein, which is convenient for injection to treat the patient. The flow and time of the infusion can be controlled by the infusion control pump 2. When performing the infusion, first let one of the electric valves 22 is opened for infusion, when the drug injection of the drug bag is completed, the infrared sensor 3 senses the gas passing, and transmits the signal to the PLC controller 4 of the infusion control pump 2, and the PLC controller 4 controls to open the next electric valve 22 , let the medicine of the next medicine bag flow into and carry out infusion, can not need nurse teacher to often change medicine bag like this, and the design of connecting mechanism 5 makes after the device is used, makes can replace plug 11 and injection needle 7 parts, can Let the main line 1 and infusion control pump 2 areas be reused.

The plug 11 is provided with a chute 12, the plug 11 is in the chute 12 and is slidably connected with the connecting pipe 10, both sides of the plug 11 are slidably connected with a sliding rod 13, and the outer side of the sliding rod 13 is fixedly connected with a pin 14, and the connecting pipe 10 Both sides of the plug 11 are slidingly connected with an insertion rod 15, and a first spring 16 is fixedly connected between the insertion rod 15 and the connecting pipe 10. Both sides of the plug 11 are provided with jacks 17. When the plug 11 is inserted into the rubber of the medicine bag When in the plug, insert the plug 11 into the rubber plug, and press the insertion rod 15, so that the insertion rod 15 slides into the part of the connecting pipe 10, and push the connecting pipe 10 upwards, so that the insertion rod 15 is against the plug 11 and continues upward Push in the connecting pipe 10 until the connecting pipe 10 reaches the area of the socket 17. Under the elastic force of the first spring 16, the insertion rod 15 just snaps into the socket 17, so that the connecting pipe 10 can no longer be moved. During this process, The top of the connecting pipe 10 squeezes the slide bar 13, so that the slide bar 13 moves with the pin 14, so that the pin 14 is inserted into the rubber plug, which can effectively prevent the plug 11 from falling off, thereby preventing the plug 11 from falling into the ground create pollution.

The small bar 18 is fixedly connected to the top of the slide bar 13, the second spring 19 is fixedly connected to the small bar 18, the plug 11 is fixedly connected to the end of the second spring 19 away from the small bar 18, and under the elastic force of the second spring 19, the When the top of the connecting pipe 10 does not squeeze the slide bar 13, the pin 14 does not protrude from the plug 11, so as to avoid being hindered by the pin 14 when the plug 11 is inserted into the rubber plug.

The chamfering is provided at the bottom of the slide bar 13, and the inclination angle is provided at the top of the connecting pipe 10. The design of the inclination angle and the chamfering, when the top of the connecting pipe 10 squeezes the slide bar 13, is convenient for the slide bar 13 to carry the plug. The needle 14 is moved sideways and inserted into the rubber stopper.

The connecting ring 20 is fixedly connected to the inner and outer sides of the connecting pipe 10, and the first sealing ring 21 is bonded to the top of the connecting ring 20. The bottom end contacts and is pressed by the connection ring 20 and the plug 11 , so that the connection ring 20 and the plug 11 have a good sealing performance.

Embodiment two

Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, further improvements have been made on the basis of Embodiment 1: the connecting mechanism 5 includes a connecting sleeve 51, and the main pipe 1 and the connecting sleeve 51 Insertion, the connecting block 52 slides through the inner side of the connecting sleeve 51, the threaded pipe 53 is threadedly connected to the connecting block 52, the limiting mechanism 54 is arranged on both sides of the connecting sleeve 51, the small hole 55 is opened on both sides of the connecting block 52, and the screw thread The end of the tube 53 away from the connecting block 52 is connected to the injection tube 6 or the connecting main tube 8. When the injection tube 6 or the connecting main tube 8 needs to be installed through the connecting mechanism 5, the connecting block 52 is slid into the connecting sleeve 51, and the The threading rod 542 of the restricting mechanism 54 is inserted into the small hole 55, so that the connecting block 52 cannot slide, thereby completing the installation. When dismounting, the threading rod 542 of the restricting mechanism 54 is allowed to stay away from the small hole 55, so that the connecting block 52 can be taken out easily. Injection tube 6 or connection main pipe 8 are disassembled.

The restricting mechanism 54 includes a large rod 541, which is plugged on both sides of the connecting sleeve 51, the threading rod 542 is slidably connected to the inner side of the large rod 541, the connecting plate 543 is slidably connected to the inner wall of the large rod 541, and the third spring 544 is fixed Connected to one side of the connection plate 543, the big rod 541 is fixedly connected to the end of the third spring 544 away from the connection plate 543. Before the connection block 52 slides into the connection sleeve 51, the rod 542 is pulled outward by hand to facilitate the connection. The block 52 slides into the connecting sleeve 51, and after the connecting block 52 is inserted into the connecting sleeve 51, under the elastic force of the third spring 544, the connecting plate 543 moves with the threading rod 542, so that the threading rod 542 is inserted into the small hole 55, Thus, the connection block 52 is fixed.

The second sealing ring 56 is bonded to the inner wall of the connecting sleeve 51. When the threading rod 542 of the restricting mechanism 54 is inserted into the small hole 55, by turning the threaded pipe 53 by hand, the top end of the connecting block 52 is squeezed under the action of the thread. Press the second sealing ring 56 so that the connecting mechanism 5 has a good sealing performance.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. An automatic switching device for an infusion set, comprising a main pipeline (1), the middle part of the main pipeline (1) is plugged with an infusion control pump (2), and the infusion control pump (2) is provided with an infrared sensor device (3), and the infusion control pump (2) is fixedly connected with a PLC controller (4), characterized in that: the bottom end of the main pipeline (1) is connected with a syringe (6) through a connection mechanism (5) ), the bottom end of the injection tube (6) is inserted with an injection needle (7), and the top of the main pipe (1) is connected with a connecting main pipe (8) through a connecting mechanism (5), and the connecting main pipe (8) ) is plugged with several branch pipes (9), the tops of several branch pipes (9) are connected with connecting pipes (10), and the top of the connecting pipes (10) is provided with plugs (11), so The connecting pipe (10) is provided with an electric valve (22), the plug (11) is provided with a chute (12), and the plug (11) is slidingly connected to the connecting pipe (10) at the chute (12), Both sides of the plug (11) are slidably connected with a slide bar (13), the outside of the slide bar (13) is fixedly connected with a pin (14), and both sides of the connecting pipe (10) are slidably connected There is an insertion rod (15), and a first spring (16) is fixedly connected between the insertion rod (15) and the connecting pipe (10), and jacks (17) are provided on both sides of the plug (11). 2. The automatic switching device of a kind of infusion set according to claim 1, characterized in that: the top of the slide bar (13) is fixedly connected with a small rod (18), and the small rod (18) is fixedly connected with a The second spring (19), the end of the second spring (19) away from the small rod (18) is fixedly connected to the plug (11). 3. An automatic switching device for an infusion set according to claim 2, characterized in that: the bottom end of the sliding rod (13) is provided with a chamfer, and the top end of the connecting pipe (10) is provided with an inclined angle. 4. The automatic switching device of a kind of infusion set according to claim 3, characterized in that: the inner and outer sides of the connecting pipe (10) are fixedly connected with connecting rings (20), and the connecting rings (20) The top end is bonded with a first sealing ring (21). 5. An automatic switching device for an infusion set according to claim 1, characterized in that: the connecting mechanism (5) includes a connecting sleeve (51), and the connecting sleeve (51) is plugged into the main pipe (1) Connection, the inner side of the connecting sleeve (51) is slidably inserted with a connecting block (52), the connecting block (52) is threaded with a threaded pipe (53), and both sides of the connecting sleeve (51) are provided with limiting Mechanism (54), small holes (55) are opened on both sides of the connecting block (52). 6. An automatic switching device for an infusion set according to claim 5, characterized in that: the limiting mechanism (54) includes a large rod (541), and the large rod (541) is plugged into the connecting sleeve (51 ), the inner side of the big rod (541) is slidably connected with a piercing rod (542), the inner wall of the big rod (541) is slidably connected with a connecting plate (543), and one of the connecting plates (543) The side is fixedly connected with a third spring (544), and the end of the third spring (544) away from the connecting plate (543) is fixedly connected with the big rod (541). 7. An automatic switching device for an infusion set according to claim 6, characterized in that: a second sealing ring (56) is bonded to the inner wall of the connecting sleeve (51).