Remotely-controllable coronary heart disease automatic radiography injection device

Abstract

The invention discloses a remotely-controllable coronary heart disease automatic radiography injection device, and belongs to the field of medical instruments. Comprising an injection device shell, one side of the injection device shell is connected with a remote control end through a wire, and a four-way pipe is arranged on one side of the inner surface of the injection device shell in a penetrating mode; through the automatic injection assembly, the injection speed and dosage of a contrast agent and other injections in the coronary angiography process can be accurately controlled, the pressure in a ventricular cavity is displayed in real time, automatic pressure alarming is achieved, injection injection injection is stopped in time, and complications such as vascular interlayer and laminar flow are avoided; automatic exhaust is achieved through the air valve, it is ensured that pushing injection is conducted after air is exhausted, and adverse events such as air embolism caused by incomplete manual exhaust in a traditional coronary intervention operation are avoided; the whole-course operation is simple, the radiography speed is increased through automatic, intelligent and other precise operations, the operation time is saved, and the operation safety, standardization and stability are improved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and more particularly to a remotely controlled automatic angiography injection device for coronary heart disease. Background Art

[0002] At present, coronary angiography is a common and effective method for diagnosing coronary atherosclerotic heart disease (CHD). It is a relatively safe and reliable invasive diagnostic technology, which has been widely used in clinical practice and is considered the gold standard for diagnosing CHD. Coronary angiography can exclude or confirm CHD, and make a clear diagnosis of the location, range, vascular wall condition, and degree of stenosis of coronary artery lesions, which is helpful for formulating the next treatment plan.

[0003] In the existing vascular interventional surgery process, the operation of using contrast agents to develop blood vessels is to connect the contrast catheter to the three-way cyclopropyl syringe after it reaches the coronary artery orifice, and the three-way cyclopropyl syringe is connected to the pressure sensor, heparin saline and contrast agent respectively. The operator needs to be exposed to X-rays to manually exhaust, manually withdraw and push the contrast agent. The thickness and direction of the blood vessels can be displayed on the computer screen through X-ray fluoroscopy, and then the coronary artery sclerosis blood vessels can be found. In clinical work, this solution requires two surgeons, which occupies the doctors' hands, prolongs the operation time, and the development effect is uneven, and the imaging speed is slow.

[0004] At the same time, this operation also has the following shortcomings:

[0005] 1) Manual operation can easily cause fatigue in the hands of medical staff, especially female medical staff whose hands are weaker. It is easy for them to hold the syringe unsteadily when multiple injections are given or when there are many patients, which in turn affects the imaging effect and the angiography conclusion.

[0006] 2) Due to the different proficiency levels of operators, there are differences in injection speed and push dose. If the push is too fast, it is easy for the catheter to be withdrawn from the coronary artery orifice. If the push is too slow, laminar flow is likely to occur in the catheter, resulting in unclear blood vessel display. If the angiography time is too long, it is easy to lead to excessive push of contrast agent, excessive radiation, and even serious arrhythmia events.

[0007] 3) It is impossible to perceive the pressure changes in the patient's body in real time. Injecting contrast agent in the case of incarceration may cause vascular dissection. Medical staff need to be in a radiation environment for a long time, and manual operation takes a long time, which will obviously damage the health of doctors and patients. Summary of the invention

[0008] In view of the problems existing in the prior art, the object of the present invention is to provide a remotely controlled automatic angiography injection device for coronary heart disease.

[0009] To solve the above problems, the present invention adopts the following technical solutions.

[0010] A remotely controllable automatic angiography injection device for coronary heart disease comprises an injection device shell, one side of the injection device shell is connected to a remote control end via a wire, a four-way tube is penetrated through one side of the inner surface of the injection device shell, three input ends of the four-way tube are fixedly connected to hoses, one end of the four-way tube is connected to an air valve, a pressure sensor socket is provided on one side of the injection device shell near the upper surface, a pressure sensor is provided inside the pressure sensor socket, one end of the air valve is connected to an angiography catheter, the angiography catheter is a three-way tube, a parameter adjustment component for parameter adjustment is provided on the front side of the outer surface of the injection device shell, an automatic push injection component for placing a syringe is provided on the rear side of the outer surface of the injection device shell, and a storage component for storing idle angiography catheters is connected to one side of the injection device shell.

[0011] The parameter adjustment component includes a fixed shell fixed on the front side of the injection device housing, the front side of the fixed shell is fixedly connected to a touch display screen, one side of the edge of the front side of the fixed shell close to the bottom is connected to an air alarm light, a switch and a pressure alarm light, and a speed adjustment button and a switch button are arranged on the edge of one side of the front side of the fixed shell, and the speed adjustment button includes an acceleration button and a deceleration button.

[0012] Optionally, the touch screen is used for the surgeon to input injection parameters and observe the current injection status parameters in real time, including delay time, injection rate, injection time, injection pressure upper limit, total amount of contrast agent and remaining dose and other parameters.

[0013] Optionally, the automatic injection assembly includes three placement grooves connected to one side of the back side of the injection device shell and three servo motors on the inner surface of the injection device shell away from the hose, the inner surface of the placement groove is provided with an ear slot, and a strip slot is provided below the ear slot. The output end of the servo motor is fixedly connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to an internal threaded sleeve block, one side of the internal threaded sleeve block is connected to a push plate, and one side of the push plate is connected to a socket.

[0014] Optionally, the internal thread sleeve is located inside the strip groove and slides, the push plate is located inside the placement groove, the cross-section of the holder is L-shaped, the holder is arc-shaped as a whole, and a fixed component is slidably connected to one side of the inner surface of the placement groove.

[0015] Optionally, the fixing assembly includes a second through groove opened on the rear side of the injection device housing, a first fixing block and a second fixing block fixed on the rear side of the injection device housing, and a sleeve sliding on one side of the inner surface of the placement groove, the outer surface of the sleeve is fixedly connected to a contact plate, the outer surfaces of the three groups of contact plates are commonly connected to a connecting plate, one side of the connecting plate is fixedly connected to a movable plate, one side of the first fixing block is hinged to a hinged plate, and the other end of the sleeve is connected to one end of the hose.

[0016] Optionally, a rubber strip is provided on one side of the second fixed block close to the hinge plate, the first fixed block and the second fixed block are located on both sides of the second through groove, the first fixed block and the second fixed block are staggered with each other, one side of the movable plate passes through the second through groove and slides with each other, and a sealing assembly is connected to one side of the contact plate.

[0017] Optionally, the sealing assembly includes a card slot opened inside the contact plate and a sealing plate located on one side of the contact plate, the sealing plate has two third through slots opened inside, the third through slots are slidably connected to the inside of the third through slots, and a second spring is fixedly connected to one side where the two hooks are close to each other.

[0018] Optionally, the slot is L-shaped, the hook and the slot are matched with each other, a spring slot is provided between two third through slots, and the second spring passes through the third through slots.

[0019] Optionally, the storage assembly includes a fixed shaft fixed to one side of the injection device housing, a winding shaft is provided on one side of the fixed shaft, two side baffles are fixedly connected to the outer surface of the winding shaft, and an extrusion assembly is connected to one side of the side baffle.

[0020] Optionally, the extrusion assembly includes two sliding rods fixed on one side of the side baffle, the outer surfaces of the two sliding rods are jointly sleeved with a movable ring, the interior of the movable ring is provided with two first through grooves, the interior of the first through grooves is slidably connected with an extrusion rod, the interior of the extrusion rod is threadedly connected with a bidirectional threaded rod, the outer surface of the sliding rod is sleeved with a first spring, the interior of the fixed shaft is provided with a movable groove, and the bidirectional threaded rod is located inside the movable groove.

[0021] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0022] In the above scheme, the remote control terminal and parameter adjustment component remotely controlled by the doctor have the following beneficial effects: the automatic push injection component can accurately control the injection speed and dosage of contrast agent and other injection fluids during coronary angiography, display the intraventricular pressure in real time, realize automatic pressure alarm, and stop the push injection of injection fluid in time to avoid complications such as vascular dissection and laminar flow; automatic exhaust through the air valve to ensure that the air is exhausted before pushing, avoiding adverse events such as air embolism caused by incomplete manual exhaust in traditional coronary intervention surgery; the whole operation is simple, and the angiography speed is improved, the operation time is saved, and the safety, standardization and stability of the operation are increased through precise operations such as automation and intelligence.

[0023] By providing a fixing assembly, it is ensured that the hinged plate can block the movable plate, so that the movable plate cannot move freely inside the second through groove, thereby ensuring the stability of the connection between the sleeve and the syringe, avoiding accidental separation of the catheter and the syringe, and avoiding liquid loss during injection imaging and imaging failure.

[0024] By providing a sealing assembly, when the sleeve is idle, the sealing plate and the sleeve are tightly fitted, and the sealing plate seals the sleeve to prevent the entry of dust and impurities, thereby ensuring the safety of the injection device and reducing the impact of external factors on the injection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0026] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0027] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0028] Figure 3 The structure of the present invention is schematically shown Figure 3 ;

[0029] Figure 4 It is a schematic diagram of the internal structure of the present invention;

[0030] Figure 5 For the present invention Figure 2 A magnified image of point A;

[0031] Figure 6 It is a schematic diagram of the structure of the sealing assembly of the present invention;

[0032] Figure 7 It is a schematic diagram of the storage assembly structure of the present invention;

[0033] Figure 8 It is a schematic diagram of the structure of the extrusion assembly of the present invention.

[0034] [Reference Signs]

[0035] 1. Injection device housing;

[0036] 2. Parameter adjustment component; 21. Fixed shell; 22. Switch button; 23. Speed ​​adjustment button; 24. Pressure warning light; 25. Switch; 26. Air warning light; 27. Touch screen;

[0037] 3. Remote control terminal; 4. Air valve;

[0038] 5. Storage assembly; 51. Fixed shaft; 52. Side baffle; 53. Reeling shaft;

[0039] 54, extrusion assembly; 541, moving ring; 542, first through groove; 543, extrusion rod; 544, bidirectional threaded rod; 545, sliding rod; 546, first spring;

[0040] 6. Angiographic catheter;

[0041] 7. Automatic injection assembly; 71. Placement slot; 72. Ear slot; 73. Strip slot; 74. Threaded rod;

[0042] 75, fixing assembly; 751, second through slot; 752, moving plate; 753, first fixing block; 754, second fixing block; 755, hinged plate; 756, contact plate; 757, sleeve; 758, connecting plate;

[0043] 76, sealing assembly; 761, sealing plate; 762, hook; 763, third through slot; 764, second spring; 765, slot;

[0044] 77, push plate; 78, holder; 79, internal thread sleeve; 710, servo motor;

[0045] 8. Hose; 9. Cross-way pipe; 10. Pressure sensor; 11. Pressure sensor socket.

[0046] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0047] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0048] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0049] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0050] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0051] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0052] like Figures 1 to 8As shown, an embodiment of the present invention provides a remote-controllable automatic angiography injection device for coronary heart disease, comprising an injection device housing 1, one side of the injection device housing 1 is connected to a remote control terminal 3 through a wire, a four-way tube 9 is provided through one side of the inner surface of the injection device housing 1, three input ends of the four-way tube 9 are fixedly connected to a hose 8, one end of the four-way tube 9 is connected to an air valve 4, a pressure sensor socket 11 is provided on one side of the injection device 1 housing near the upper surface, a pressure sensor 10 is provided inside the pressure sensor socket 11, an angiography catheter 6 is connected to the output end of the air valve 4, and the angiography catheter 6 is a three-way tube, a parameter adjustment component 2 for parameter adjustment is provided on the front side of the outer surface of the injection device housing 1, an automatic push injection component 7 for placing a syringe is provided on the rear side of the outer surface of the injection device housing 1, and a storage component 5 for storing idle angiography catheters 6 is connected to one side of the injection device housing 1.

[0053] like Figure 1 As shown, the parameter adjustment component 2 includes a fixed shell 21 fixed to the front side of the injection device housing 1, and a touch display screen 27 is fixedly connected to the front side of the fixed shell 21. An air alarm light 26, a switch 25 and a pressure alarm light 24 are connected to one side of the edge of the front side of the fixed shell 21 near the bottom. A speed adjustment button 23 and a switch button 22 are arranged on the edge of one side of the front side of the fixed shell 21, and the speed adjustment button 23 includes an acceleration button and a deceleration button.

[0054] The touch screen 27 is used for the surgeon to input injection parameters and observe the current injection status parameters in real time, including delay time, injection rate, injection time, injection pressure upper limit, total amount of contrast agent and remaining dose, etc.

[0055] The automatic injection assembly 7 includes three placement grooves 71 connected to one side of the back side of the injection device housing 1 and three servo motors 710 on the inner surface of the injection device housing 1 away from the hose 8. The inner surface of the placement groove 71 is provided with an ear slot 72, and a strip slot 73 is provided below the ear slot 72. The output end of the servo motor 710 is fixedly connected to a threaded rod 74, and the outer surface of the threaded rod 74 is threadedly connected to an internal threaded sleeve block 79, one side of the internal threaded sleeve block 79 is connected to a push plate 77, and one side of the push plate 77 is connected to a holder 78.

[0056] The internal thread sleeve block 79 slides inside the strip groove 73, the push plate 77 is located inside the placement groove 71, the cross section of the clamping seat 78 is L-shaped, the clamping seat 78 is arc-shaped as a whole, and a fixing component 75 is slidably connected to one side of the inner surface of the placement groove 71.

[0057] The syringes containing contrast agent, heparin saline and nitroglycerin pump are placed in the placement groove 71 in turn, and the ears of the syringe push rod are inserted into the inside of the holder 78, so as to ensure the stability of the syringe and prevent the syringe from tilting inside the placement groove 71. The servo motor 710 is started by the remote control terminal 3 to drive the threaded rod 74 to rotate, drive the internal threaded sleeve block 79 to move horizontally along the strip groove 73, and drive the push plate 77 to move to push the push rod of the syringe. The delay time, push rate, push time, push pressure upper limit, total amount of contrast agent and remaining dose and other parameters can be monitored in real time through the touch display screen 27. The function of the speed control button 23 can be switched through the switch button 22, respectively switching the acceleration button and the deceleration button. The adjusted data is displayed in the corresponding display area on the touch screen 27. One end of the angiography catheter 6 is inserted into the pressure sensor socket 11. The pressure sensor 10 can detect the pressure inside the angiography catheter 6 and is used to sense the pressure in the ventricle. The output end is electrically connected to the remote control end 3. It can be self-locked when encountering greater resistance or when a stop command is given. The remote control end 3 is used to control the servo motor 710, thereby driving the automatic push injection component 7 to work. It can also be used to receive the pressure value of the pressure sensor 10, control the push injection rate, push injection pressure, and process various logic algorithms. The air valve 4 is used to realize automatic exhaust during the liquid discharge process of the liquid discharge tube. If the exhaust is not complete, an automatic alarm can be realized to avoid air embolism in the coronary artery.

[0058] When the injection is completed and the needle is pulled out of the patient's body, the servo motor 710 is started again to reverse, so that the push plate 77 moves to the end of the placement slot 71. Since the ear of the syringe push rod is stuck in the inside of the holder 78, the push plate 77 drives the push rod to pull, so that the syringe draws out the residual liquid in the angiographic catheter 6 to recover the liquid, thereby preventing the liquid from spraying out from the needle and polluting the environment, and preventing the liquid from remaining in the angiographic catheter 6 for a long time, which may cause deterioration and contamination and cause a large deviation in the next angiography result.

[0059] like Figures 2 to 4 As shown, the fixing assembly 75 includes a second through groove 751 opened on the rear side of the injection device housing 1, a first fixing block 753 and a second fixing block 754 fixed on the rear side of the injection device housing 1, and a sleeve 757 sliding on one side of the inner surface of the placement groove 71, the outer surface of the sleeve 757 is fixedly connected to a contact plate 756, the outer surfaces of the three groups of contact plates 756 are commonly connected to a connecting plate 758, one side of the connecting plate 758 is fixedly connected to a movable plate 752, one side of the first fixing block 753 is hinged to a hinged plate 755, and the other end of the sleeve 757 is connected to one end of the hose 8.

[0060] A rubber strip is provided on one side of the second fixed block 754 close to the hinge plate 755, the first fixed block 753 and the second fixed block 754 are located on both sides of the second through groove 751, the first fixed block 753 and the second fixed block 754 are staggered with each other, one side of the movable plate 752 passes through the second through groove 751 and slides with each other, and a sealing assembly 76 is connected to one side of the contact plate 756.

[0061] However, the existing syringe is usually connected with the catheter by a sleeve. If the catheter is accidentally pulled during use, the catheter and the syringe are easily separated, resulting in injection failure. At this time, when connecting the syringe, the movable plate 752 is pushed to drive the connecting plate 758 to move, and the connecting plate 758 drives the three sleeves 757 to be simultaneously sleeved on the needle head of the syringe, and the movable plate 752 moves to the end of the second through groove 751 between the first fixed block 753 and the movable plate 752, and then the hinged plate 755 is rotated around the first fixed block 753 to one side of the movable plate 752 to block the movable plate 752. Since the second fixed block 754 is provided with a rubber strip, the hinged plate 755 is blocked by the rubber strip when it is rotated to the side of the second fixed block 754, thereby ensuring the stability of the hinged plate 755 and preventing the movable plate 752 from moving freely inside the second through groove 751, thereby ensuring the stability of the connection between the sleeve 757 and the syringe and avoiding accidental separation of the catheter and the syringe.

[0062] like Figure 6 As shown, the sealing assembly 76 includes a slot 765 opened inside the contact plate 756 and a sealing plate 761 located on one side of the contact plate 756, two third through slots 763 are opened inside the sealing plate 761, and the inside of the third through slots 763 is slidably connected with a hook 762, and the side where the two hooks 762 are close to each other is fixedly connected with a second spring 764.

[0063] The clamping slot 765 is L-shaped, the clamping hook 762 and the clamping slot 765 are matched with each other, a spring slot is defined between the two third through slots 763 , and the second spring 764 passes through the third through slots 763 .

[0064] When the injection device is idle, the sleeve 757 is exposed to the outside world and dust can easily enter the inside. If the dust is not dealt with in time, it will enter the blood vessels with the liquid during the next injection and will affect the body. At this time, the two hooks 762 are pressed to slide inside the third through groove 763 and approach each other, squeezing the second spring 764. At this time, the sealing plate 761 and the contact plate 756 are fitted together, and the hook 762 is inserted into the inside of the groove 765. The hook 762 is released and pushed toward each other under the elastic force of the second spring 764, so that the hook 762 is stuck in the horizontal part of the groove 765, thereby sealing the sleeve 757 through the sealing plate 761 to prevent the entry of dust and impurities, thereby ensuring the safety of the injection device and reducing the impact of external factors on the injection results.

[0065] like Figure 7 As shown, the storage assembly 5 includes a fixed shaft 51 fixed to one side of the injection device housing 1, a winding shaft 53 is provided on one side of the fixed shaft 51, two side baffles 52 are fixedly connected to the outer surface of the winding shaft 53, and an extrusion assembly 54 is connected to one side of the side baffle 52.

[0066] like Figure 8 As shown, the extrusion assembly 54 includes two sliding rods 545 fixed on one side of the side baffle 52, the outer surfaces of the two sliding rods 545 are jointly sleeved with a moving ring 541, the interior of the moving ring 541 is provided with two first through grooves 542, the interior of the first through grooves 542 is slidably connected with an extrusion rod 543, the interior of the extrusion rod 543 is threadedly connected with a bidirectional threaded rod 544, the outer surface of the sliding rod 545 is sleeved with a first spring 546, the interior of the fixed shaft 51 is provided with a movable groove, and the bidirectional threaded rod 544 is located inside the movable groove.

[0067] When the injection device is idle, the contrast catheter 6 needs to be stored. Generally, the contrast catheter 6 is folded several times to be bundled. However, the creases at the folds for a long time will accelerate the aging of the contrast catheter 6 and easily cause the creases of the contrast catheter 6 to crack.

[0068] At this time, the movable ring 541 is pulled to drive the two squeezing rods 543 to move away from the vicinity of the winding shaft 53, and then the angiographic catheter 6 is evenly wound around the winding shaft 53, so that the angiographic catheter 6 forms a circular ring shape, thereby avoiding bending of the angiographic catheter 6 and ensuring the service life of the angiographic catheter 6. At the same time, it reduces the scattering of the angiographic catheter 6 in the outside, and reduces the trampling and wear of the angiographic catheter 6. After the winding is completed, the squeezing rod 543 is reset, and then the two-way threaded rod 544 can be rotated to drive the two squeezing rods 543 to approach each other to suppress the wound angiographic catheter 6, thereby effectively preventing the angiographic catheter 6 from scattering and falling.

[0069] The working process of the technical solution provided by the present invention is as follows:

[0070] First, different syringes are placed into the placement slot 71 at one time, and the push plate 77 can be driven by the servo motor 710 to move and inject the syringe. Various parameters of the injection can be monitored and adjusted by the parameter adjustment component 2, which greatly improves the automation and intelligence of the injection device. The fixing component 75 can ensure the tightness between the syringe and the catheter, and the sealing component 76 can seal the entrance of the sleeve 757 to prevent dust from entering the interior of the sleeve 757 and causing pollution.

[0071] Then, the idle angiography catheter 6 can be wound and stored through the winding shaft 53 to avoid wear and tear caused by the angiography catheter 6 scattered on the ground and to increase the service life of the angiography catheter 6. With the cooperation of the extrusion component 54, the surface of the wound angiography catheter 6 can be pressed to prevent the angiography catheter 6 from becoming loose.

[0072] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0073] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A remotely controllable automatic angiography injection device for coronary heart disease, comprising an injection device housing, one side of the injection device housing is connected to a remote control end via a wire, a four-way tube is provided through one side of the inner surface of the injection device housing, three input ends of the four-way tube are fixedly connected to hoses, one end of the four-way tube is connected to an air valve, a pressure sensor socket is provided on one side of the injection device housing near the upper surface, a pressure sensor is provided inside the pressure sensor socket, one end of the air valve is connected to an angiography catheter, and the angiography catheter is a three-way tube; It is characterized in that A parameter adjustment component for adjusting parameters is disposed on the front side of the outer surface of the injection device housing, an automatic push injection component for placing a syringe is disposed on the rear side of the outer surface of the injection device housing, and a storage component for storing an idle angiography catheter is connected to one side of the injection device housing; The parameter adjustment component includes a fixed shell fixed on the front side of the injection device housing, the front side of the fixed shell is fixedly connected to a touch display screen, one side of the edge of the front side of the fixed shell close to the bottom is connected to an air alarm light, a switch and a pressure alarm light, and a speed adjustment button and a switch button are arranged on the edge of one side of the front side of the fixed shell, and the speed adjustment button includes an acceleration button and a deceleration button.

2. The remotely controllable automatic angiography injection device for coronary heart disease according to claim 1, characterized in that: The touch screen is used for the surgeon to input injection parameters and observe the current injection status parameters in real time, including delay time, injection rate, injection time, injection pressure upper limit, total amount of contrast agent and remaining dose, etc.

3. The remotely controllable automatic angiography injection device for coronary heart disease according to claim 2, characterized in that: The automatic injection push assembly includes three placement grooves connected to one side of the back side of the injection device shell and three servo motors on the inner surface of the injection device shell away from the hose. The inner surface of the placement groove is provided with an ear clamping groove, and a strip groove is provided below the ear clamping groove. The output end of the servo motor is fixedly connected to a threaded rod, and the outer surface of the threaded rod is threadedly connected to an internal threaded sleeve block, one side of the internal threaded sleeve block is connected to a push plate, and one side of the push plate is connected to a clamping seat.

4. The remotely controllable automatic angiography injection device for coronary heart disease according to claim 3, characterized in that: The internal thread sleeve is located inside the strip groove and slides, the push plate is located inside the placement groove, the cross section of the holder is L-shaped, the holder is arc-shaped as a whole, and a fixed component is slidably connected to one side of the inner surface of the placement groove.

5. The remotely controllable automatic angiography injection device for coronary heart disease according to claim 4, characterized in that: The fixing assembly includes a second through groove opened on the rear side of the injection device housing, a first fixing block and a second fixing block fixed on the rear side of the injection device housing, and a sleeve sliding on one side of the inner surface of the placement groove, the outer surface of the sleeve is fixedly connected to a contact plate, the outer surfaces of the three groups of contact plates are commonly connected to a connecting plate, one side of the connecting plate is fixedly connected to a movable plate, one side of the first fixing block is hinged to a hinged plate, and the other end of the sleeve is connected to one end of the hose.

6. The remotely controllable automatic angiography injection device for coronary heart disease according to claim 5, characterized in that: A rubber strip is provided on one side of the second fixed block close to the hinge plate, the first fixed block and the second fixed block are located on both sides of the second through groove, the first fixed block and the second fixed block are staggered with each other, one side of the movable plate passes through the second through groove and slides with each other, and a sealing assembly is connected to one side of the contact plate.

7. The remotely controllable automatic angiography injection device for coronary heart disease according to claim 6, characterized in that: The sealing assembly includes a card slot opened inside the contact plate and a sealing plate located on one side of the contact plate, the sealing plate has two third through slots opened inside, the third through slots are slidably connected with card hooks inside, and the second spring is fixedly connected to the side where the two card hooks are close to each other.

8. The remotely controllable automatic angiography injection device for coronary heart disease according to claim 7, characterized in that: The card slot is L-shaped, the card hook and the card slot are adapted to each other, a spring slot is provided between the two third through slots, and the second spring passes through the third through slots.

9. The remotely controllable automatic angiography injection device for coronary heart disease according to claim 1, characterized in that: The storage assembly includes a fixed shaft fixed to one side of the injection device housing, a winding shaft is provided on one side of the fixed shaft, two side baffles are fixedly connected to the outer surface of the winding shaft, and an extrusion assembly is connected to one side of the side baffle.

10. The remotely controllable automatic angiography injection device for coronary heart disease according to claim 9, characterized in that: The extrusion assembly includes two sliding rods fixed on one side of the side baffle, the outer surfaces of the two sliding rods are jointly sleeved with a moving ring, the interior of the moving ring is provided with two first through grooves, the interior of the first through grooves is slidably connected with an extrusion rod, the interior of the extrusion rod is threadedly connected with a bidirectional threaded rod, the outer surface of the sliding rod is sleeved with a first spring, the interior of the fixed shaft is provided with a movable groove, and the bidirectional threaded rod is located inside the movable groove.

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