Liquid medicine injection device for throat of patient

Abstract

The utility model relates to a liquid medicine injection device for the throat of a patient, and belongs to the technical field of medical instruments. Comprising a handle, a switching valve and an infusion extension tube, the infusion extension tube is fixedly installed on the handle, a needle head assembly is installed at one end of the infusion extension tube in a threaded mode, the switching valve is fixedly installed at the other end of the infusion extension tube and communicated with the infusion extension tube, and a supporting frame is fixedly installed on the portion, below the switching valve, of the handle. And an injector A and an injector B are respectively clamped on the support frame and are respectively communicated with the switching valve. The liquid medicine injection device for the throat of the patient is easy and convenient to operate, the injector can be fixed, disjunction of the joint of the injector and the infusion tube is avoided, meanwhile, liquid medicine residues are reduced, and the dosage accuracy of injection liquid medicine is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of medicine water injection devices for patient throat, belong to medical instrument technical field. BACKGROUND

[0002] When patient does throat operation, it involves injecting medicine water to patient throat muscle tissue, to achieve the purpose of treatment. Since throat muscle tissue is in the inside of human oral cavity, in order to facilitate the injection of medicine water to patient, the front end of injector is usually equipped with infusion tube, and needle is inserted into the front end of infusion tube, thereby extending the overall length of injector, and the needle is clamped by laryngoscope forceps, and the infusion tube and the needle are guided into the inside of patient's oral cavity by laryngoscope forceps, until the needle is inserted into the throat muscle tissue of patient, and the piston rod of injector is pressed to inject treatment medicine water into the throat muscle tissue of patient through the infusion tube, so as to complete the injection of medicine water.

[0003] In the above process of injecting medicine water, since the overall length of injector is extended by infusion tube, the injector is hung at the end of infusion tube, which makes the injection very inconvenient, and the connection between the hanging injector and the infusion tube is prone to disconnection, thereby affecting the injection of medicine water. On the other hand, since the infusion tube is relatively long, a large amount of treatment medicine water is left in the infusion tube after injection, which not only causes waste of medicine water, but also leads to inaccurate dose of injected medicine water. Therefore, it is necessary to improve it. SUMMARY

[0004] The utility model aims at providing a kind of medicine water injection devices for patient throat, which is simple and easy to operate, can fix injector, avoid disconnection at the connection between injector and infusion tube, reduce medicine water residue, effectively improve the dose accuracy of injected medicine water.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of medicine water injection devices for patient throat, including handle, switching valve and infusion extension tube, characterized by: infusion extension tube is fixedly installed on handle, needle assembly is screw-installed on the end of infusion extension tube, switching valve is fixedly installed on the other end of infusion extension tube, switching valve is communicated with infusion extension tube, support frame is fixedly installed on the handle below switching valve, injector A and injector B are respectively clamped on support frame, and injector A and injector B are respectively communicated with switching valve.

[0007] The infusion extension tube is a long strip round pipe, and the end of the infusion extension tube is provided with an outer boss, and the outer boss is provided with an outer thread.

[0008] The needle assembly includes a needle body and a connecting pipe, the needle body is fixedly installed on one end of the connecting pipe, the connecting pipe is provided with an inner boss on the other end, and the inner wall of the connecting pipe on one side of the inner boss is provided with an inner thread.

[0009] The switching valve comprises a pipe body and a valve core, the pipe body is a three-way pipe structure, two end ports of the pipe body are in a trumpet shape, the trumpet-shaped pipe body ports are in interference fit with the syringe ports, an assembly port is arranged at a center position of the pipe body, the valve core is inserted and arranged in the assembly port, a sealing cover is arranged above the valve core, the sealing cover is in threaded connection with the assembly port, one end of the valve core extends to the outside of the sealing cover, and a rotary switch is arranged on the valve core extending to the outside of the sealing cover.

[0010] The valve core is in a spherical shape, a connecting rod is arranged at the top of the valve core, a plug plate is fixedly installed on the connecting rod, the plug plate is fixedly connected with the rotary switch, a first blind hole and a second blind hole are arranged on the circumference of the valve core, the first blind hole and the second blind hole are arranged in a right angle shape, and the first blind hole and the second blind hole are communicated.

[0011] The support frame comprises a frame body, a support plate and a clamping plate, the frame body is in an "L" shape in cross section, one end of the frame body is fixedly connected with the handle, the support plate is arranged at the other end of the frame body, the support plate is in a long strip shape, the clamping plates are symmetrically arranged on the support plate, and the clamping plates are in a "C" shape.

[0012] The beneficial effects of the utility model compared with the prior art are that:

[0013] The medicine water injection device for the throat of a patient is connected in interference fit with the syringe A and the syringe B through the switching valve, the switching valve is tightly connected with the syringe A and the syringe B, the support frame tightly holds the syringe A and the syringe B, the syringe A and the syringe B can be further prevented from falling off from the switching valve, the switching valve can switch the communication between the first inlet channel and the outlet channel and the communication between the second inlet channel and the outlet channel, so that the syringe A and the syringe B can be conveniently injected in turn, when the medicine water in the syringe A is injected, the physiological saline in the syringe B is introduced into the infusion extension tube, so that the medicine water in the infusion extension tube is completely pushed into the muscle tissue of the throat of a patient, and the residual medicine water in the infusion extension tube is reduced. The medicine water injection device for the throat of a patient is simple and convenient to operate, the syringes can be fixed, the syringes and the infusion tube can be prevented from being disconnected, the residual medicine water is reduced, and the injection precision of the medicine water dose is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structure schematic diagram of another view of the utility model;

[0016] Figure 3 It is an explosion structure schematic diagram of the infusion extension tube and the needle assembly in the utility model;

[0017] Figure 4It is the cross section structure schematic view of the switching valve in the utility model.

[0018] Figure 5 It is the three-dimensional structure schematic view of the valve core in the utility model.

[0019] Figure 6 It is the three-dimensional structure schematic view of the support frame in the utility model.

[0020] In the drawing: 1, handle; 2, switching valve; 3, infusion extension pipe; 4, outer boss; 5, outer thread; 6, needle body; 7, connecting pipe; 8, inner thread; 9, pipe body; 10, valve core; 11, first inlet channel; 12, second inlet channel; 13, outlet channel; 14, assembly port; 15, syringe B; 16, first blind hole; 17, second blind hole; 18, sealing cover; 19, connecting rod; 20, plugboard; 21, rotary switch; 22, frame body; 23, support plate; 24, clamping plate; 25, syringe A. DETAILED DESCRIPTION

[0021] As shown in the accompanying drawings Figures 1-6

[0022] The medicine injection device for patient's throat includes handle 1, switching valve 2 and infusion extension pipe 3, the top of handle 1 is fixedly installed with infusion extension pipe 3, the infusion extension pipe 3 is long strip circular pipe, the outer boss 4 is arranged on the one end of infusion extension pipe 3, the outer thread 5 is arranged on the outer boss 4, the needle assembly is screwedly installed on the outer boss 4 of infusion extension pipe 3, the needle assembly includes needle body 6 and connecting pipe 7, the one end of connecting pipe 7 is fixedly installed with needle body 6, the other end of connecting pipe 7 is provided with inner boss, the inner thread 8 is arranged on the inner wall of connecting pipe 7 on one side of inner boss, the inner thread 8 of connecting pipe 7 is screwedly connected with the outer thread 5 of outer boss 4 on infusion extension pipe 3, when being used, the infusion extension pipe 3 and needle assembly are connected in the mode that the screw thread is matched, the needle assembly is conveniently disassembled from infusion extension pipe 3, so that the new needle assembly can be replaced, meanwhile, the outer boss 4 of disassembled infusion extension pipe 3 can also be completely exposed, and the disinfection is facilitated.

[0023] The other end of infusion extension pipe 3 is fixedly installed with switching valve 2, the switching valve 2 includes pipe body 9 and valve core 10, the pipe body 9 is three-way pipe structure, the pipe body 9 has first inlet channel 11, second inlet channel 12 and outlet channel 13, the outlet channel 13 of pipe body 9 is fixedly connected with the other end of infusion extension pipe 3, the outlet channel 13 of pipe body 9 is communicated with infusion extension pipe 3, when working, the outlet channel 13 of pipe body 9 can deliver medicine into infusion extension pipe 3.

[0024] ​The ports of the first inlet channel 11 and the second inlet channel 12 of the pipe body 9 are in the shape of a horn, and in operation, the horn-shaped inlet channels are inserted into the front ports of the syringe in interference fit, so as to realize the sealing of the inlet channels of the pipe body 9 with the ports of the syringe, and at the same time, the tight connection between the inlet channels of the pipe body 9 and the syringe is formed, so as to facilitate the injection of the medicine into the inlet channels of the pipe body 9 by the syringe.

[0025] A fitting port 14 is arranged at the center of the pipe body 9, and the fitting port 14 is communicated with the first inlet channel 11, the second inlet channel 12 and the outlet channel 13 of the pipe body 9 respectively, and a valve core 10 is movably inserted into the fitting port 14, the valve core 10 is in the shape of a ball, a first blind hole 16 and a second blind hole 17 are arranged on the circumference of the valve core 10, the first blind hole 16 and the second blind hole 17 are arranged in a right angle, and the first blind hole 16 and the second blind hole 17 are communicated with each other, and in use, when the first blind hole 16 is communicated with the outlet channel 13 of the pipe body 9, the second blind hole 17 is communicated with the first inlet channel 11 of the pipe body 9, so that the first inlet channel 11 of the pipe body 9 is communicated with the outlet channel 13 of the pipe body 9 through the cooperation of the first blind hole 16 and the second blind hole 17, so as to facilitate the delivery of the medicine, and at this time, the valve core 10 blocks the second inlet channel 12 of the pipe body 9; when it is needed to use the second inlet channel 12 to deliver liquid and block the first inlet channel 11, the ball valve is rotated counterclockwise by 90°, at this time, the first blind hole 16 is communicated with the second inlet channel 12 of the pipe body 9, and the second blind hole 17 is communicated with the outlet channel 13 of the pipe body 9, so that the second inlet channel 12 of the pipe body 9 is communicated with the outlet channel 13 of the pipe body 9 through the cooperation of the first blind hole 16 and the second blind hole 17, so as to facilitate the delivery of the medicine, and at this time, the valve core 10 blocks the first inlet channel 11 of the pipe body 9.

[0026] A sealing cover 18 is arranged above the valve core 10, the sealing cover 18 is threadedly connected with the fitting port 14, a connecting rod 19 is arranged on the top of the valve core 10, a plug plate 20 is fixedly installed on the connecting rod 19, the connecting rod 19 of the valve core 10 extends to the outside of the sealing cover 18, the connecting rod 19 and the plug plate 20 extending to the outside of the sealing cover 18 are fixedly connected with a rotary switch 21, the rotary switch 21 is in the shape of a long strip plate, the rotary switch 21 is provided with a plug slot at the bottom, the plug slot is correspondingly plugged with the connecting rod 19 and the plug plate 20, and in use, the ball valve can be rotated by 0-90° through the rotary switch 21.

[0027] The handle 1 below the switching valve 2 is fixedly provided with a support frame, which comprises a frame body 22, a support plate 23 and a clamping plate 24. The frame body 22 is in the shape of an "L" section, one end of the frame body 22 is fixedly connected with the handle 1, the other end of the frame body 22 is provided with the support plate 23, the support plate 23 is a long strip plate, the clamping plate 24 is symmetrically arranged on the support plate 23, the clamping plate 24 is a "C" shaped plate, the clamping plate 24 of the support frame is respectively provided with the syringe A 25 and the syringe B 15, when in use, the frame body 22, the support plate 23 and the clamping plate 24 cooperate to support the syringe A 25 and the syringe B 15, and at the same time, the positions of the syringe A 25 and the syringe B 15 are fixed, so as to facilitate the medical staff to inject the medicine through the syringes.

[0028] The front end of the syringe A 25 and the front end of the syringe B 15 are respectively inserted into the inlet channel of the switching valve 2 in interference fit and are in communication, and the front end of the syringe A 25 and the front end of the syringe B 15 are respectively connected with the inlet channel in interference fit.

[0029] When the medicine injection device for the larynx of a patient is in use, first, the syringe A 25 filled with treatment medicine is inserted into the clamping plate 24 on the left side of the support plate 23, the front end of the needle cylinder of the syringe A 25 is inserted into the first inlet channel 11 of the switching valve 2 in interference fit, the clamping plate 24 tightly holds the needle cylinder of the syringe A 25, and the clamping plate 24 can limit the flange of the needle cylinder of the syringe A 25; then, the syringe B 15 is filled with physiological saline, and the syringe B 15 is inserted into the clamping plate 24 on the right side of the support plate 23, the front end of the needle cylinder of the syringe B 15 is inserted into the second inlet channel 12 of the switching valve 2 in interference fit, and the clamping plate 24 can also limit the flange of the needle cylinder of the syringe B 15.

[0030] After the syringe A 25 and the syringe B 15 are installed, the first inlet channel 11 is communicated with the outlet channel 13 through the first blind hole 16 and the second blind hole 17 under the cooperation of the valve core 10, the valve core 10 blocks the second inlet channel 12, the piston rod of the syringe A 25 is pushed, the treatment medicine fills the infusion extension tube 3 and the needle assembly, until the needle body 6 drips the treatment medicine, that is, the piston rod of the syringe A 25 is stopped, at this time, the infusion extension tube 3 and the needle assembly are filled with the treatment medicine.

[0031] Open the patient's mouth, expand the patient's throat with a laryngeal dilator, then extend the infusion extension tube 3 with the needle assembly into the patient's mouth, then insert the needle body 6 into the patient's throat muscle tissue where the medicine needs to be injected, continue to push the piston rod of the syringe A25 to the bottom, so as to inject the medicine into the patient's throat muscle tissue, after the injection of the medicine in the syringe A25 is completed, rotate the rotary switch 21 counterclockwise by 90°, so that the second inlet channel 12 and the outlet channel 13 are connected with each other, and the valve core 10 forms a block to the first inlet channel 11, at this time, push the piston rod of the syringe B15 to the bottom, so that the physiological saline in the syringe B15 enters the infusion extension tube 3, thereby pushing all the medicine in the infusion extension tube 3 into the patient's throat muscle tissue, thereby reducing the residual medicine in the infusion extension tube 3.

[0032] The medicine injection device for the patient's throat is simple to operate, can fix the syringe, avoid disconnection of the syringe and the infusion tube, reduce the residual medicine, and effectively improve the accuracy of the injected medicine dose.

Claims

1. A medicine injection device for the larynx of a patient, comprising a handle (1), a switching valve (2) and an infusion extension tube (3), characterized in that: The handle (1) is fixedly installed with an infusion extension tube (3), a needle assembly is threadedly installed on one end of the infusion extension tube (3), a switching valve (2) is fixedly installed on the other end of the infusion extension tube (3), the switching valve (2) is communicated with the infusion extension tube (3), a supporting frame is fixedly installed on the handle (1) below the switching valve (2), a syringe A (25) and a syringe B (15) are clamped on the supporting frame respectively, and the syringe A (25) and the syringe B (15) are communicated with the switching valve (2) respectively.

2. A device for the injection of a liquid into the larynx of a patient according to claim 1, wherein: The infusion extension tube (3) is in the shape of a long strip and a circular tube, an outer boss (4) is arranged on one end of the infusion extension tube (3), and an outer thread (5) is arranged on the outer boss (4).

3. The device according to claim 1, wherein: The needle assembly comprises a needle body (6) and a connecting pipe (7), the connecting pipe (7) is fixedly installed with the needle body (6) at one end, an inner boss is arranged on the other end of the connecting pipe (7), and an inner thread (8) is arranged on the inner wall of the connecting pipe (7) on one side of the inner boss.

4. The device of claim 1, wherein: The switching valve (2) comprises a pipe body (9) and a valve core (10), the pipe body (9) is in a three-way pipe structure, two end ports of the pipe body (9) are in the shape of a horn, the horn-shaped ports of the pipe body (9) are in interference fit with syringe ports, an assembly opening (14) is arranged at the center position of the pipe body (9), the valve core (10) is inserted into the assembly opening (14), a sealing cover (18) is arranged above the valve core (10), the sealing cover (18) is threadedly connected with the assembly opening (14), one end of the valve core (10) extends to the outside of the sealing cover (18), and a rotary switch (21) is arranged on the valve core (10) extending to the outside of the sealing cover (18).

5. A fluid injection apparatus for the larynx of a patient as defined in claim 4, wherein: The valve core (10) is in the shape of a ball, a connecting rod (19) is arranged on the top of the valve core (10), a plug plate (20) is fixedly installed on the connecting rod (19), the plug plate (20) is fixedly connected with the rotary switch (21), a first blind hole (16) and a second blind hole (17) are arranged on the circumference of the valve core (10), the first blind hole (16) and the second blind hole (17) are arranged in the shape of a right angle, and the first blind hole (16) and the second blind hole (17) are communicated.

6. The device of claim 1, wherein: The supporting frame comprises a frame body (22), a supporting plate (23) and a clamping plate (24), the frame body (22) is in the shape of an "L" letter, one end of the frame body (22) is fixedly connected with the handle (1), the supporting plate (23) is arranged on the other end of the frame body (22), the supporting plate (23) is in the shape of a long strip, the clamping plate (24) is symmetrically arranged on the supporting plate (23), and the clamping plate (24) is in the shape of a "C" letter.

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