CN110339419A - An automatic anti-leakage high-pressure injector - Google Patents

Abstract

The invention discloses an automatic anti-leakage high-pressure injector, relates to the field of medical appliances, and comprises a device main body shell, and a base is fixedly installed on the outer surface of the lower end of the device main body shell. The present invention can monitor the pressure on the patient's arm in real time, and once the threshold value is exceeded, it will immediately alarm and open the functions of drug liquid withdrawal and residual liquid diversion, which solves the problem that the current high-pressure syringe injection contrast agent leaks and causes serious harm to the patient; wireless transmission is adopted In this mode, there is no need for medical staff to take care of the radiation room. Once a leak occurs, the doctor in the radiation monitoring room can deal with the situation in the first time through the sound and light alarm, which improves the timeliness of the situation treatment; innovatively adopts the idea of liquid back pumping , once leakage occurs, the high-pressure syringe is immediately pumped back to effectively reduce the volume of contrast medium leakage, and the stepping motor is set to drive the worm to move back and forth to achieve the function of injecting the liquid and pumping it back. Certain use prospects.

Description

An automatic anti-leakage high-pressure injector

technical field

The invention relates to the field of medical appliances, in particular to an automatic anti-leakage high-pressure injector.

Background technique

The high-pressure injector is mainly used for contrast medium injection during angiography, and it can also be used for contrast medium injection during CT contrast examination. Physiological saline dilutes the contrast agent. During use, due to the high injection pressure during injection, blood vessel damage often occurs, and the event of contrast agent leaking into the subcutaneous soft tissue occurs. The agent is a hypertonic solution, once it leaks, it will quickly form a large area of edema, which will cause oppression and toxicity to the tissue, and cause harm to the patient, especially some patients (such as diabetic patients) are often difficult to heal, resulting in ulceration of the edema area, causing damage to the patient. Bring more serious injury, for this reason, we have proposed an automatic anti-leakage high-pressure injector.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the existing defects and provide an automatic anti-leakage high-pressure injector, which can effectively solve the problems in the background technology.

In order to achieve the above object, the present invention provides the following technical solutions: an automatic anti-leakage high-pressure injector, including a device main body shell, a base is fixedly installed on the outer surface of the lower end of the device main body shell, and the rear end outer surface of the device main body shell is fixedly connected There is a support rod, one end of the support rod is provided with a rotating part, the upper end of the rotating part is provided with a connecting rod, the outer surface of the lower end of the connecting rod is fixedly installed with a liquid return mechanism, and the outer surface of one end of the connecting rod is provided with There is an injection head, an injection needle is arranged on the outer surface of the front end of the injection head, and a pressure sensing cuff is arranged around the injection needle.

Preferably, the inside of the liquid return mechanism is provided with a servo motor and a medical three-way pipe, a rotary valve is provided on the outer surface of the middle part of the medical three-way pipe, and a motor rod is provided on the outer surface of one end of the servo motor. The outer surface of one end of the servo motor is fixedly connected with the middle outer surface of the medical three-way pipe through a rotary valve.

Preferably, one end of the medical three-way pipe is provided with a main port of the three-way pipe, and the other end of the medical three-way pipe is provided with a three-way branch port, and the number of the three-way branch ports is two groups, two groups three The included angle between the openings of the through pipes is 90°, the outer surface of the lower end of the liquid return mechanism is provided with a liquid return pipe, one end of the liquid return pipe is provided with a sterile bottle, and the other end of the liquid return pipe is connected to the The three-way pipe is fixedly connected at the mouth. The inside of the sterile bottle is provided with a liquid storage tank. The upper surface of the sterile bottle is provided with a liquid return port. The other end of the liquid return pipe runs through the liquid return port and the storage tank. The outer surface of the upper end of the liquid tank is fixedly connected, and the sterile bottle is located on the outer surface of the rear end of the main body shell of the device.

Preferably, a microcontroller, a wireless communication module, an A/D converter and a needle bar pushing mechanism are fixedly installed inside the injection head, the microcontroller is electrically connected to the wireless communication module, and the microcontroller is connected to the wireless communication module. The needle bar pushing mechanism is electrically connected, and the inside of the needle bar pushing mechanism is provided with a stepping motor, a worm, and a transmission gear. The stepping motor is located on one side of the worm, and the outer surface of the worm is provided with threads. The output end of the stepping motor is fixedly connected with the middle part of the transmission gear, the outer surface of the transmission gear is movably connected with the outer surface of the screw thread, and a needle tube is arranged at one end of the worm.

Preferably, the injection head runs through the middle of the pressure-sensing cuff, a pressure sensor is arranged inside the pressure-sensing cuff, a Velcro is arranged on the outer surface of one end of the pressure-sensing cuff, and the pressure-sensing cuff The outer surface of the other end is provided with Velcro, and the rear end of the pressure-sensing cuff is provided with a connecting conduit, and the pressure-sensing cuff is connected to the injection head through the connecting conduit.

Preferably, universal wheels are provided on the outer surface of the lower end of the base, a pressure value display screen is fixedly installed on the outer surface of the upper end of the main body casing of the device, and an acousto-optic alarm is fixedly installed on the outer surface of the front end of the main body casing of the device.

Preferably, a handle is fixedly connected to one side of the outer surface of the main body of the device, a fixing member is provided between the handle and the main body of the device, and a power cord is provided at the rear end of the main body of the device.

Compared with prior art, the beneficial effect of the present invention is:

1. The present invention can monitor the pressure on the patient's arm in real time through the pressure sensing cuff and pressure sensor. Once the threshold is exceeded, it will immediately alarm and open the function of medicine liquid back pumping and residual liquid diversion, and the set stepping motor drives the worm back and forth Exercising to achieve the functions of injecting liquid medicine and withdrawing liquid medicine solves the problem of serious injury caused by the leakage of contrast medium injected by the current high-pressure syringe, and has a certain beneficial effect.

2. By adopting the wireless transmission mode, the present invention does not require medical staff to take care of the radiology room, and the patient's arm injection site will quickly generate lumps. After the pressure sensor monitors the pressure rise, it converts the pressure into a corresponding voltage signal through A/D conversion and transmits it to the patient. Microprocessor, once the pressure exceeds the initial threshold, the sound and light alarm will operate, and the doctors in the radiation monitoring room can deal with the situation at the first time, which improves the timeliness of the situation treatment,

3. The present invention innovatively adopts the concept of medical liquid withdrawal through the set medical three-way tube, servo motor and aseptic bottle. Once leakage occurs, a lump will be formed at the injection site of the patient's arm. After the pressure sensor monitors the pressure rise , through A/D conversion, the pressure is converted into a corresponding voltage signal and transmitted to the microprocessor. Once the pressure exceeds the initial threshold, the servo motor is started to rotate the medical three-way head, allowing the excess liquid to flow into the sterile bottle to effectively reduce the contrast agent. Leakage capacity.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the internal structure of the liquid return mechanism in the present invention;

Fig. 3 is a schematic diagram of the connection between the servo motor and the medical tee pipe in the present invention;

Fig. 4 is the structural representation of liquid storage tank among the present invention;

Fig. 5 is a structural schematic diagram of a pressure-sensing cuff in the present invention;

Fig. 6 is the structural representation of the Chinese medicine tee pipe of the present invention;

Fig. 7 is a functional schematic diagram of each module of the terminal in the present invention;

Fig. 8 is a functional schematic diagram of each module of the control terminal in the present invention;

Fig. 9 is a schematic diagram of the local structure of the injection head in the present invention;

Fig. 10 is a schematic diagram of the internal structure of the needle bar pushing mechanism in the present invention.

In the figure: 1. The main shell of the device; 2. The pressure display screen; 3. The sound and light alarm; 4. The support rod; 5. The handle; 6. The base; 7. The universal wheel; 8. The rotating part; Connecting rod; 10. Sterile bottle; 11. Fixing piece; 12. Liquid return tube; 13. Injection needle; 14. Pressure sensing cuff; 15. Connecting catheter; 16. Injection head; 17. Liquid return mechanism; 18. Servo motor; 19. Medical tee pipe; 20. Rotary valve; 21. Motor rod; 22. Liquid storage tank; 23. Liquid return port; 24. Pressure sensor; , three-way pipe split port; 28, three-way pipe main port; 29, microcontroller; 30, wireless communication module; 31, needle tube; 32, needle bar driving mechanism; 33, worm; 34, stepping motor; 35, Transmission gear; 36, thread.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "set with", "connected", etc. should be understood in a broad sense, such as "connected", which may be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings 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.

Please refer to Figures 1-7, the present invention provides a technical solution: an automatic anti-leakage high-pressure syringe, including a device main body shell 1, a base 6 is fixedly installed on the outer surface of the lower end of the device main body shell 1, and a rear end outer surface of the device main body shell 1 The surface is fixedly connected with a support rod 4, one end of the support rod 4 is provided with a rotating part 8, the upper end of the rotating part 8 is provided with a connecting rod 9, the outer surface of the lower end of the connecting rod 9 is fixedly installed with a liquid return mechanism 17, and one end of the connecting rod 9 An injection head 16 is arranged on the outer surface, an injection needle 13 is arranged on the outer surface of the front end of the injection head 16 , and a pressure sensing cuff 14 is arranged around the injection needle 13 .

It can be beneficial to open the functions of liquid medicine back-pumping and residual liquid diversion. In this embodiment, preferably, a servo motor 18 and a medical three-way pipe 19 are arranged inside the liquid return mechanism 17, and the outer surface of the middle part of the medical three-way pipe 19 is arranged There is a rotary valve 20, and the outer surface of one end of the servo motor 18 is provided with a motor rod 21, and the outer surface of one end of the servo motor 18 is fixedly connected with the middle outer surface of the medical tee pipe 19 through the rotary valve 20.

The specific structure between the internal parts of the liquid return mechanism is described. In this embodiment, preferably, one end of the medical three-way pipe 19 is provided with a three-way main port 28, and the other end of the medical three-way pipe 19 is provided with a three-way branch port. 27. The number of the three-way pipe openings 27 is two groups, and the angle between the two sets of three-way pipe openings 27 is 90°. The outer surface of the lower end of the liquid return mechanism 17 is provided with a liquid return pipe 12. One end of the aseptic bottle 10 is provided, and the other end of the liquid return pipe 12 is fixedly connected with the three-way pipe opening 27. The interior of the aseptic bottle 10 is provided with a liquid storage tank 22, and the outer surface of the upper end of the aseptic bottle 10 is provided with a return Liquid port 23 , the other end of the liquid return pipe 12 runs through the liquid return port 23 and is fixedly connected to the outer surface of the upper end of the liquid storage tank 22 , and the aseptic bottle 10 is located on the outer surface of the rear end of the main body shell 1 of the device.

The internal structure of the injection head 16 is described, which is conducive to the function of the injection head 16. In this embodiment, preferably, the interior of the injection head 16 is fixedly equipped with a microcontroller 29, a wireless communication module 30, an A/D converter and a needle. The rod pushing mechanism 32, the microcontroller 29 is electrically connected with the wireless communication module 30, the microcontroller 29 is electrically connected with the needle rod pushing mechanism 32, and the inside of the needle rod pushing mechanism 32 is provided with a stepping motor 34, a worm 33 and a transmission Gear 35, stepper motor 34 is positioned at one side of worm screw 33, and the outer surface of worm screw 33 is provided with screw thread 36, and the output end of stepper motor 34 is fixedly connected with the middle part of transmission gear 35, and the outer surface of transmission gear 35 is connected with thread 36. The outer surface is movably connected, and one end of the worm 33 is provided with a needle tube 31 .

The relationship between some components of the device is described. In this embodiment, preferably, the injection head 16 runs through the middle of the pressure-sensing cuff 14, and a pressure sensor 24 is arranged inside the pressure-sensing cuff 14. One end of the pressure-sensing cuff 14 The outer surface is provided with Velcro 25, the outer surface of the other end of the pressure-sensitive cuff 14 is provided with a Velcro 26, the rear end of the pressure-sensitive cuff 14 is provided with a connecting conduit 15, and the pressure-sensitive cuff 14 connects with the connecting conduit 15. The injection head 16 is connected.

The integrity of the device is maintained. In this embodiment, preferably, the outer surface of the lower end of the base 6 is provided with universal wheels 7, and the outer surface of the upper end of the main body shell 1 of the device is fixedly equipped with a pressure value display screen 2. The outer surface of the main body shell 1 of the device An audible and visual alarm 3 is fixedly installed on the outer surface of the front end.

Describes the partial structure of the device. In this embodiment, preferably, the outer surface of one side of the main body shell 1 of the device is fixedly connected with the handle 5, and a fixing member 11 is arranged between the handle 5 and the shell 1 of the main body of the device. The shell of the main body of the device 1 is provided with a power cord at the rear end.

The working principle and application process of the present invention: the present invention consists of a device main body shell 1, a pressure value display screen 2, an audible and visual alarm 3, a support rod 4, a handle 5, a base 6, a universal wheel 7, a rotating part 8, a connection Rod 9, sterile bottle 10, fixing piece 11, liquid return tube 12, injection needle 13, pressure sensing cuff 14, connecting catheter 15, injection head 16, liquid return mechanism 17, servo motor 18, medical three-way pipe 19, Rotary valve 20, motor rod 21, liquid storage tank 22, liquid return port 23, pressure sensor 24, Velcro sticker 25, Velcro female sticker 26, tee pipe branch port 27, tee pipe main port 28, microcontroller 29 , wireless communication module 30, needle tube 31, needle bar pushing mechanism 32, worm 33, stepper motor 34, transmission gear 35 and other components, check whether the injection head 16 can operate normally before the device is used, and connect the device with the monitoring room The terminal is connected through a wireless network. Before the high-pressure injection, the patient brings the pressure-sensing cuff 14 to the injection site through the Velcro. Set the initial threshold of pressure on the top, and when the high-pressure syringe is injected, the actual pressure value will be displayed on the pressure value display screen 2 in real time. If the contrast agent leaks, a mass will quickly form at the injection site of the patient's arm. After the pressure sensor 24 monitors the pressure rise , through A/D conversion, the pressure is converted into a corresponding voltage signal and transmitted to the microcontroller 29. Once the pressure exceeds the initial threshold, it immediately triggers the local sound and light alarm 3 to give an alarm, and simultaneously starts the servo motor 18 to rotate the medical tee pipe 19, so that redundant The liquid medicine flows into the sterile bottle 10, and at the same time, the pressure value is transmitted to the monitoring room through the wireless communication module 30, and the high-pressure syringe is immediately controlled to start the liquid medicine withdrawal mode, so as to reduce the leakage of the contrast agent as much as possible. The medical staff in the monitoring room will also deal with the leakage problem immediately after they find the alarm, which improves the response speed of dealing with emergencies and effectively reduces the pain of the patient. The stepper motor 34 drives the worm 33 to move back and forth to achieve The function of injecting medicinal liquid and withdrawing medicinal liquid has a certain application prospect.

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. automatic antiseep high pressure injector, including apparatus main body shell (1), it is characterised in that: described device main body cover (1) Lower end outer surface be fixedly installed with pedestal (6), the back end outer surface of described device main body cover (1) is fixedly connected with support rod (4), one end of the support rod (4) is provided with revolving part (8), and the upper end of the revolving part (8) is provided with connecting rod (9), institute The lower end outer surface for stating connecting rod (9) is fixedly installed with Hui Ye mechanism (17), and one end outer surface of the connecting rod (9) is provided with The leading exterior surface of injection head (16), the injection head (16) is provided with injection needle (13), and the four of the injection needle (13) It is provided with pressure sensitive cuff (14) week.

2. automatic antiseep high pressure injector according to claim 1, it is characterised in that: the Hui Ye mechanism (17) it is interior Portion is provided with servo motor (18) and Medical tee joint pipe (19), and the center outer surface of the Medical tee joint pipe (19) is provided with rotation One end outer surface of valve (20), the servo motor (18) is provided with motor bar (21), outside one end of the servo motor (18) Surface is fixedly connected by rotary valve (20) with the center outer surface of Medical tee joint pipe (19).

3. automatic antiseep high pressure injector according to claim 2, it is characterised in that: the Medical tee joint pipe (19) One end offers the main mouth of tee tube (28), and the other end of the Medical tee joint pipe (19) offers tee tube and divides mouth (27), described Tee tube is divided to the quantity of mouth (27) to be two groups, and the angle that two groups of tee tubes divide between mouth (27) is 90 °, the Hui Ye mechanism (17) Lower end outer surface be provided with liquid back pipe (12), one end of the liquid back pipe (12) is provided with aseptic bottle (10), the liquid back pipe (12) the other end divides mouth (27) to be fixedly connected with tee tube, and the aseptic bottle (10) is internally provided with fluid reservoir (22), institute The upper end outer surface for stating aseptic bottle (10) offers liquid return hole (23), and the other end of the liquid back pipe (12) runs through liquid return hole (23) It is fixedly connected with the upper end outer surface of fluid reservoir (22), the aseptic bottle (10) is located at the rear end appearance of apparatus main body shell (1) Face.

4. automatic antiseep high pressure injector according to claim 1, it is characterised in that: the inside of the injection head (16) It is fixedly installed with microcontroller (29), wireless communication module (30), A/D converter and shank pushing mechanism (32), the micro-control Device (29) processed and wireless communication module (30) are electrically connected, and the microcontroller (29) electrically connects with shank pushing mechanism (32) It connects, the shank pushing mechanism (32) is internally provided with stepper motor (34), worm screw (33) and transmission gear (35), the step It is located at the side of worm screw (33) into motor (34), the outer surface of the worm screw (33) is provided with screw thread (36), the stepper motor (34) it is fixedly connected in the middle part of output end and transmission gear (35), outer surface and screw thread (36) of the transmission gear (35) Outer surface is flexibly connected, and one end of the worm screw (33) is provided with needle tubing (31).

5. automatic antiseep high pressure injector according to claim 4, it is characterised in that: the injection head (16) is through pressure Power incudes the middle part of cuff (14), and the pressure sensitive cuff (14) is internally provided with pressure sensor (24), the pressure One end outer surface of induction cuff (14) is provided with magic patch (25), the other end outer surface of the pressure sensitive cuff (14) It is provided with magic female patch (26), the rear end of the pressure sensitive cuff (14) is provided with connecting conduit (15), the pressure sensitive Cuff (14) is connect by connecting conduit (15) with injection head (16).

6. automatic antiseep high pressure injector according to claim 1, it is characterised in that: outside the lower end of the pedestal (6) Surface is provided with universal wheel (7), and the upper end outer surface of described device main body cover (1) is fixedly installed with pressure value display screen (2), The leading exterior surface of described device main body cover (1) is fixedly installed with combined aural and visual alarm (3).

7. automatic antiseep high pressure injector according to claim 1, it is characterised in that: described device main body cover (1) A side external surface be fixedly connected with and help knob (5), described help between knob (5) and apparatus main body shell (1) is provided with fixation The rear end of part (11), described device main body cover (1) is provided with power supply line.