WO2018141221A1

WO2018141221A1 - Radiography apparatus

Info

Publication number: WO2018141221A1
Application number: PCT/CN2018/073905
Authority: WO
Inventors: 彭泳涵; 高小峰; 肖亮; 王珂男; 孙颖浩; 李凌
Original assignee: 上海长海医院
Priority date: 2017-01-23
Filing date: 2018-01-24
Publication date: 2018-08-09
Also published as: CN108339188A; CN108339188B

Abstract

A radiography apparatus, comprising an interventional catheter (12), an injection component, a catheter withdrawing component, and a controller for controlling the three aforementioned parts; a contrast agent is injected, by means of the injection component and the interventional catheter (12), into a body cavity or passage to be visualized; the interventional catheter (12) is withdrawn, by means of the catheter withdrawing component, from the body cavity or passage to be visualized; the injection component is controlled by the controller to inject the contrast agent into the body cavity or passage to be visualized, and the catheter withdrawing component is controlled by the controller to withdraw the interventional catheter (12) from the body cavity or passage to be visualized. The radiography apparatus can meet the requirements of two operations, namely, injection of the contrast agent and withdrawal of the interventional catheter (12), and allow a doctor to remain in an observation room while performing a radiography operation, protecting the doctor from radiation, and facilitating the radiography operation.

Description

Contrast device

Technical field

Embodiments of the present invention relate to the field of medical instruments, and in particular, to a contrast device.

Background technique

Injecting contrast medium into the body for health examination is a commonly used examination method. Taking the urological diagnosis of the upper urinary tract as an example, the doctor first inserts the interventional catheter into the ureter via the cystoscope, and then injects the contrast medium into the renal pelvis through the interventional catheter. At the same time of the liquid, real-time, dynamic continuous filming to show the upper urinary tract shape.

However, with the current conditions and equipment, the doctor needs to leak under the X-ray when injecting the contrast medium. Although the doctor can put on the lead clothing for operation, the X-ray irradiation cannot be completely avoided, and after putting on the lead clothing, The operation is awkward, which easily affects the operation effect and prolongs the operation time, thereby further increasing the X-ray intake. At the same time, during the process of artificial injection of contrast medium, the dose of injection and the speed of injection can not be accurately calculated and controlled based on personal experience and feeling. It is easy to cause too much dose during the examination, and too much injection of contrast medium is easy. Causes fever, contrast fluid retention, etc. after patient examination.

Summary of the invention

In view of the above, one of the technical problems to be solved by the embodiments of the present invention is to provide a contrast device for overcoming the inconvenience of the contrast operation caused by the manual injection of the contrast liquid in the prior art, and achieving the convenience of the contrast operation. effect.

The invention provides a contrast device comprising: an interventional catheter, an injection assembly, a catheter extraction assembly, and a controller for controlling the above components;

One end of the interventional catheter is for connection with an injection end of the injection assembly, and the other end of the interventional catheter is for intervention into a lumen to be contrasted;

The injection assembly is configured to inject a contrast medium into the lumen to be contrasted through the interventional catheter;

The catheter extraction assembly is configured to pull the interventional catheter out of the lumen to be contrastd.

Optionally, the injection assembly includes: a base, an injection drive mounted on the base, and an injection device mounted on the base by an injection mount;

The injection drive device is used to drive the injection device to inject contrast medium into the lumen to be contrasted through the interventional catheter.

Optionally, the injection driving device is: a push rod device; the push rod device is mounted on the base through a push rod mounting seat;

a push rod of the push rod device abuts against a pushing end of the injection device to drive the injection device to inject the contrast liquid into the lumen to be contrasted;

The pusher device is coupled to the controller, the controller for controlling an injection speed of the contrast fluid to the lumen to be contrasted by controlling an advancement speed of the pusher device.

Optionally, a pressure sensor is mounted on the push rod of the push rod device, and the pressure sensor is connected to the controller; the controller is configured to control the push rod device according to a pressure value collected by the pressure sensor. The speed is advanced to control the pressure in the channel not to exceed a safe value.

Optionally, the push rod device is: an electric push rod or an electro-hydraulic push rod.

Optionally, the injection device is a syringe; the liquid outlet end of the syringe is an injection end of the injection device, and the piston rod end of the syringe is a push end of the injection device.

Optionally, the injection device is a telescopic drug bottle, the liquid outlet end of the telescopic drug bottle is an injection end of the injection device, and the telescopic drug bottle is opposite to the liquid outlet end of the telescopic drug bottle. One end is the push end of the injection device.

Optionally, the injection driving device is a liquid pump, and the liquid pump is configured to drive the injection device to inject the contrast liquid into the cavity to be contrasted;

The liquid pump is coupled to the controller, and the controller is configured to control an injection speed of the contrast medium by injecting the contrast medium into the lumen to be contrasted by controlling the liquid pump.

Optionally, the injection device comprises: a medicine bottle, a liquid inlet tube, an outlet tube, a safety valve, a hydraulic sensor, the medicine bottle is mounted on the injection mounting, and the liquid outlet of the medicine bottle passes through The inlet pipe is connected to the liquid inlet of the liquid pump; the inlet of the safety valve is communicated with the outlet of the liquid pump through the outlet pipe, and the outlet end of the safety valve is An injection end of the injection device for connecting the interventional catheter; the safety valve is for controlling a pressure of the contrast liquid entering the cavity to not exceed a preset value; the hydraulic sensor is disposed at the liquid The pressure inside the pump or the liquid outlet of the liquid pump is used to collect the pressure of the contrast medium injected into the interventional catheter.

Optionally, the catheter extraction assembly is a sliding table; the sliding table comprises: a moving component, a fixing component, a sliding table driving motor; the base is mounted on the moving component, and the sliding table driving motor is used for Driving the moving element moves over the fixation element to pull the interventional catheter out of the lumen.

Optionally, the sliding table is connected to the controller, and the controller is configured to control the sliding table driving motor to drive the moving component to move at the fixed moving speed at the preset moving speed to make the interventional catheter Pull out the channel.

Alternatively, the slide table is any one of a ball screw type slide table, a rack and pinion type slide table, a timing belt type slide table, a hydraulic cylinder type slide table, and a linear motor type slide table.

Optionally, the catheter extraction assembly comprises: a telescopic rod; a front end of the telescopic rod is provided with an extraction ring; and the telescopic rod is used for pulling out the interventional catheter that is inserted into the extraction ring Said the channel.

Optionally, the telescopic rod is connected to the controller, and the controller is configured to control the telescopic rod to pull out the interventional catheter that is inserted into the extraction ring at a preset retracting speed. Cavity.

Optionally, the telescopic rod is any one of an electric telescopic rod, a hydraulic telescopic rod, and a pneumatic telescopic rod.

Optionally, the catheter extraction assembly comprises: a turntable, a turntable drive assembly;

The turntable drive assembly is configured to drive the turntable to rotate to pull the interventional catheter out of the lumen.

Optionally, the outer circumferential surface of the turntable is provided with a groove that mates with the interventional catheter to receive the interventional catheter.

Optionally, the turntable driving component comprises: a turntable driving motor and a gear transmission device;

The gear transmission includes: a primary gear, a secondary gear, a mounting shaft; the primary gear and the secondary gear are connected by the mounting shaft; the secondary gear is driven by the coupling and the rotary disk A motor output shaft of the motor is coupled, and the primary gear is drivingly coupled to the turntable.

Optionally, the turntable drive motor is coupled to the controller, and the controller is configured to control the turntable drive motor to drive the turntable to rotate at a preset rotational speed to pull the interventional catheter out of the cavity.

Optionally, the catheter extraction assembly further includes: a mating portion; the mating portion cooperates with the turntable to form a through space of the interventional catheter.

Optionally, the mating portion is a mating turntable; the mating turntable is in the same plane as the turntable, and an outer circumferential surface of the mating turntable is in contact with an outer circumferential surface portion of the turntable to form a first wearing space. The first insertion space is for penetrating the interventional catheter; the mating turntable is opposite to the rotation direction of the turntable.

Optionally, a tensioning device is further included, the tensioning device is disposed between the mating turntable and the turntable to adjust a pressing force between the mating turntable and the turntable.

Optionally, the mating portion is a wheel set.

Optionally, the wheel set includes: a first pulley, a second pulley, a third pulley, and a belt; the first pulley, the second pulley, and the third pulley are arranged in a triangle and connected by the belt drive; A belt between the first pulley and the second pulley is in contact with an outer circumferential surface portion of the turntable to form a second through space, and the second through space is for penetrating the interventional catheter.

Optionally, the third pulley is a tensioning wheel to adjust a pressing force between the wheel set and the turntable.

Optionally, the method further includes: a temperature detecting device and a warming device;

The temperature detecting device is configured to detect a real-time temperature of the contrast liquid in the injection device and send it to the controller;

The controller is configured to determine whether the real-time temperature is within a preset temperature range, and control the warming device to warm the injection device according to the result of the determination.

Optionally, the contrast device comprises a remote control; the remote controller is in data communication with the controller.

The imaging device provided by the present invention comprises an interventional catheter, an injection assembly, a catheter extraction assembly and a controller for controlling the above components; the contrast solution is injected into the lumen to be contrasted through the injection assembly and the interventional catheter; and the component is inserted through the catheter The catheter is pulled out of the lumen to be contrasted; the contrast component is also controlled by the controller to control the injection component to inject the contrast fluid into the lumen to be contrastd and to control the catheter extraction assembly to pull the interventional catheter out of the lumen to be contrastd. The contrast device provided by the invention can meet the two operation requirements of the injection contrast liquid and the extraction of the interventional catheter, and can also enable the doctor to perform the contrast operation in the observation room to prevent the doctor from being irradiated, which brings convenience for the contrast operation.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a few embodiments described in the embodiments of the present invention, and other drawings can be obtained according to the drawings for those skilled in the art.

FIG. 1 is a schematic structural diagram of a contrast device according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a contrast device according to still another embodiment of the present invention.

Fig. 3 is a schematic view showing the structure of a telescopic medicine bottle in the contrast apparatus shown in Fig. 2;

FIG. 4 is a schematic structural diagram of a contrast device according to still another embodiment of the present invention.

FIG. 5 is a schematic structural diagram of a contrast device according to another embodiment of the present invention.

Figure 6 is a schematic view showing the structure of the catheter extraction assembly in the contrast device shown in Figure 5.

FIG. 7 is a schematic structural diagram of a contrast device according to an embodiment of the present invention.

Fig. 8 is a plan view of the contrast device shown in Fig. 7.

FIG. 9 is a schematic structural diagram of a contrast device according to still another embodiment of the present invention.

Reference mark:

1: base; 2: push rod mount; 3: push rod device;

4: syringe; 5: injection mounting; 6: guide block;

7: fixed component; 8: moving component: 9: slide table drive motor;

10: pressure sensor; 11: telescopic drug bottle; 12: interventional catheter;

13: pleats; 14: shoulders; 15: quick joints;

16: drug bottle; 17: liquid pump; 18: safety valve;

19: turntable; 20: inlet pipe; 21: outlet pipe;

22: spring pressing piece; 23: heating device; 24: primary gear;

25: mounting shaft; 26: bearing; 27: secondary gear;

28: turntable drive motor; 29: telescopic rod mount; 30: telescopic rod;

31: cooperate with the turntable; 32: tensioning device; 33: active card slot;

34: movable plate; 35: first space; 36: groove;

37: fixed plate; 38: first pulley; 39: second pulley;

40: belt; 41: third pulley; 42: tension spring;

43: the second wearing space; 500: pulling out the ring; 501: mounting holes;

401: syringe; 402: piston rod; 403: outlet end;

1101: outlet end; 1102: out with the telescopic drug bottle 11

The opposite end of the liquid port end 1101.

detailed description

For a better understanding of the technical solutions in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments are only a part of the embodiments of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art should be within the scope of protection of the embodiments of the present invention based on the embodiments in the embodiments of the present invention.

The specific implementation of the embodiments of the present invention is further described below in conjunction with the accompanying drawings.

FIG. 1 is a schematic structural diagram of a contrast device according to an embodiment of the present invention. As shown in FIG. 1, the contrast device of the present embodiment includes: an interventional catheter 12, an injection assembly, a catheter extraction assembly, and a controller for controlling the above components; one end of the interventional catheter 12 is configured to be coupled to the injection end of the injection assembly. The other end of the interventional catheter 12 is for intervention into the lumen to be contrasted; the injection assembly is for injecting contrast fluid into the lumen to be contrasted via the interventional catheter 12; and the catheter extraction assembly is used to pull the interventional catheter 12 out for imaging Cavity.

In a possible implementation, the injection assembly in this embodiment includes a base 1, an injection drive, and an injection device. Specifically, the injection driving device is mounted on the base 1, and the injection device is mounted on the base 1 by the injection mounting member 5, and the injection driving device drives the injection device to inject the contrast medium into the lumen to be contrasted through the interventional catheter 12.

In one possible implementation, the injection device is a syringe 4. The syringe 4 is composed of a syringe 401 and a matching piston rod 402. The front end of the syringe 401 has a liquid outlet, that is, corresponding to the liquid outlet end 403 of the syringe 4 in the embodiment, and the end of the piston rod 402 is in the syringe. The outside is corresponding to the piston rod end in this embodiment. When a thrust is applied to the end of the piston rod, the contrast liquid in the syringe 4 flows out from the outlet end and into the interventional catheter 12 connected to the outlet end. In the present embodiment, the contrast liquid is stored in the syringe 4 in advance, and then the injection driving device contacts the end of the piston rod to apply a pushing force, and the piston rod 402 is pushed to move toward the front end of the barrel 401 to allow the contrast liquid to flow out from the liquid outlet end 403 and flow in. The catheter 12 is inserted and injected through the interventional catheter 12 into the lumen to be contrastd. In the present embodiment, the liquid outlet end 403 of the syringe 4 is the injection end of the injection device, and the piston rod end of the syringe 4 is the push end of the injection device. Optionally, the injection mounting member 5 is provided with a movable card slot 33, which can conveniently fix different types of syringes 4. Of course, the injection mounting member 5 can also be provided with other forms of adjustable structures, and is not limited thereto.

In another possible implementation, the injection device is a telescopic medicament bottle 11. For example, the stretchable drug bottle 11 may be a disposable drug bottle that can be compressed, or may be a recyclable drug bottle, and the recyclable drug bottle refers to a drug bottle that can be restored to its original shape after compression. In addition, the material for making the stretchable drug bottle 11 is a medical material having a certain flexibility, such as PP (Polypropylen, polypropylene), PE (polyethylene, polyethylene), PU (polyurethane), PET (Polyethylene terephthalate, Polyethylene terephthalate), PVC (Polyvinyl chloride, polyvinyl chloride), but not limited to this. Alternatively, the stretchable drug bottle 11 is shaped like a cylindrical body with pleats 13 to facilitate compression. In the present embodiment, the telescopic drug bottle 11 is used to store the contrast liquid. The liquid outlet end 1101 of the stretch drug bottle 11 is the injection end of the injection device, and the liquid outlet end 1101 of the stretch drug bottle 11 and the stretch drug bottle 11 The opposite end 1102 is the push end of the injection device. For example, the liquid outlet end 1101 of the telescopic medicament bottle 11 is connected to the interventional catheter 12, specifically through the quick connector 15, so that the telescopic medicament bottle 11 can be quickly connected and separated from the interventional catheter 12, and the injection contrast can be ensured. Sealing properties when the agent is used. The quick connector 15 may be a luer connector, a ferrule connector, a threaded connector, etc., but is not limited thereto.

In still another possible implementation, the injection device is comprised of a medicament bottle 16, an inlet tube 20, an outlet tube 21, a safety valve 18, a hydraulic sensor, and the like. In the present embodiment, the medicament bottle 16 is used to store the contrast medium. One possible implementation of the injection drive device is the liquid pump 17, specifically, the medicament bottle 16 is mounted on the injection mount 5, and the medicament bottle 16 is discharged. The liquid port communicates with the liquid inlet of the liquid pump 17 through the liquid inlet pipe 20; the liquid inlet of the safety valve 18 communicates with the liquid outlet of the liquid pump 17 through the liquid outlet pipe 21, and the liquid outlet end of the safety valve 18 is an injection device. The injection end is used to connect the interventional catheter 12; the safety valve 18 is used to control the pressure of the contrast fluid entering the lumen to be contrasted to not exceed a preset value. Among them, the safety valve 18 belongs to an automatic valve type, which plays a safety protection function in the system, and the control pressure does not exceed the prescribed value. When the system pressure exceeds the specified value, the safety valve 18 is opened, and part of the contrast liquid is discharged to enter the cavity to be contrasted. The pressure of the contrast medium in the channel does not exceed the preset value, thereby ensuring that the cavity to be contrasted does not cause an accident due to excessive pressure. The hydraulic pressure sensor is disposed inside the liquid pump 17 or at the liquid outlet of the liquid pump 17, and is used for collecting the pressure value of the contrast liquid injected into the interventional catheter 12. Further, the hydraulic sensor and the liquid pump 17 are both connected to the controller, and the controller controls the flow rate of the liquid pump 17 according to the data collected by the hydraulic sensor to control the pressure value of the contrast liquid injected into the interventional catheter 12, thereby controlling the pressure in the channel. Exceeded the safe value. When the pressure in the channel exceeds a safe value, it can cause physical discomfort to the patient. Therefore, the contrast device provided by the embodiment can effectively control the pressure in the cavity, and has good popularization value.

As an example, the injection driving device in this embodiment is a pusher device 3. As shown in FIG. 1, the pusher assembly 3 is mounted on the base 1 through the push rod mount 2, and the push rod of the push rod device 3 is pressed against The push end of the injection device injects the contrast device into the cavity to be contrastd, and the pusher device 3 is connected to the controller. The controller controls the injection device to the lumen to be contrasted by controlling the advancement speed of the pusher device 3. The injection speed of the injection contrast medium can achieve precise injection of the contrast medium to avoid injecting too much contrast medium, which causes problems such as fever after the examination and retention of the contrast medium.

It should be noted that the maximum ejection length of the pusher device 3 in this embodiment depends on the stroke requirement of the syringe. Optionally, the pusher device 3 in the embodiment has a maximum ejection length of 100 mm to 200 mm and a pushing speed of 3 mm/s to 10 mm/s, so as not to cause pain to the patient as much as possible.

In a possible implementation, the pusher device 3 is an electric push rod. The electric push rod is a new type of linear actuator that can make a round-trip motion within a certain range of strokes. It is mainly composed of a motor, a push rod and a control device. The standard stroke of the electric push rod is 100mm, 150mm, 200mm, 250mm, 300mm. , 350mm, 400mm and other specifications, of course, the stroke of the electric push rod can also be designed according to actual needs. The electric push rod is divided into the form of a screw: a trapezoidal screw type, a ball screw type, a planetary ball screw type, a planetary roller screw, and the like.

In a possible implementation, the pusher device 3 is an electrohydraulic push rod. The electro-hydraulic push rod is also a new type of linear actuator capable of reciprocating motion within a certain range of strokes. It is a new type of electromechanical and hydraulic transmission mechanism. It is composed of hydraulic cylinder, two-way gear oil pump, electric motor, fuel tank and hydraulic control valve. Made. Through the positive and negative rotation of the motor, the hydraulic oil is outputted through the two-way gear oil pump, and the hydraulic oil is sent to the hydraulic cylinder through the hydraulic control valve group to realize the reciprocating motion of the piston rod 402. In the present embodiment, the piston rod 402 is the push rod of the electrohydraulic push rod. Compared with the electric push rod, the thrust, tension and propulsion speed of the electro-hydraulic push rod can be adjusted steplessly as needed. In addition, when the thrust or tension and speed are the same, the electro-hydraulic push rod consumes less electric energy than the electric push rod. Safe and energy saving.

It should be noted that the pusher device 3 in this embodiment is not limited to the electric push rod and the electro-hydraulic push rod, and may be other forms, and details are not described herein again.

In a possible implementation, the catheter extraction assembly in this embodiment is a slide table; wherein, as shown in FIG. 1, the slide table includes: a moving element 8, a fixed element 7, a slide drive motor 9; The base member 1 is mounted on the moving member 8, and the slide table driving motor 9 is used to drive the moving member 8 of the electric slide table to move on the fixing member 7 of the slide table to pull the interventional catheter 12 out of the lumen. Specifically, the slide table is used to support and guide the moving parts, and can realize high-precision reciprocating linear motion under high load conditions. Among them, the moving component 8 of the sliding table is a commonly known slider, and the fixing component 7 of the sliding table is a commonly known guide rail, and the slider can reciprocate linearly on the guide rail. Optionally, the sliding table in this embodiment may be a ball screw type sliding table, a rack and pinion type sliding table, a synchronous belt type sliding table, a hydraulic cylinder type sliding table, a linear motor type sliding table, etc., but Not limited to this. When the slide table is a ball screw type slide table, the moving member 8 is driven by the slide drive motor 9 to drive the base 1 forward and backward by the drive of the screw nut. When the contrast device of the present embodiment is constituted by the pusher device 3, the slide table, or the like, the contrast device can be made more secure and reliable.

Optionally, the slide table is coupled to the controller, and the controller controls the moving member 8 of the electric slide table to drive the base 1 forward and backward, and to control the moving speed of the moving member 8. Specifically, in this embodiment, by using a controller to control the moving speed of the electric sliding table, the speed at which the interventional catheter can be pulled out of the patient's lumen can be controlled to realize that the doctor manipulates the controller in the observation room to pull out the interventional catheter to avoid the doctor. It is affected by radiation such as X-rays.

For example, in the embodiment, the injection device is the above-mentioned pusher device 3, and the catheter extraction assembly is a slide table; as shown in FIG. 1, the push rod mount 2, the injection mount 5, The guide blocks 6 are sequentially mounted on the base 1 at a certain pitch; the pusher device 3 is mounted on the push rod mount 2, the syringe 4 is mounted on the injection mount 5, and the interventional catheter 12 is passed through the guide block 6; Mounted on the moving element 8 of the slide table. The moving member 8 drives the base 1 to advance and retreat under the driving of the slide driving motor 9, and the injection device and the injection driving device in this embodiment are all mounted on the base 1, obviously, when the moving member 8 is driven to drive the base When the seat 1 is retracted, the injection device retreats following the base 1, thereby pulling the interventional catheter 12 connected to the injection device out of the patient's lumen.

Optionally, the pressure sensor 10 is mounted on a push rod of the pusher device 3. Further, the pressure sensor 10 and the pusher device 3 are both connected to the controller, and the controller controls the advancement of the pusher device 3 according to the pressure value collected by the pressure sensor 10 to control the pressure in the patient's cavity. Specifically, when the contrast medium injected in the patient's lumen is excessive, the pressure in the patient's lumen may be too large. When this occurs, the pressure value detected by the pressure sensor may be greater than a preset pressure value ( That is, the preset value), at this time, under the control of the controller, the pusher device 3 stops advancing to end the injection of the contrast medium to protect the patient. Then, for example, in the process of injecting the contrast medium, when a patient's ureteral obstruction or catheter bending occurs, when this occurs, the pressure detected by the pressure sensor 10 will also be greater than a preset value in the controller. Under the control, the pusher device 3 stops advancing to end the injection of the contrast medium to protect the patient. It should be noted that the pressure sensor 10 may be a strain gauge pressure sensor, a capacitive pressure sensor, a Hall pressure sensor, or the like, but is not limited thereto. The pressure sensor 10 can also be mounted on the inside of the push rod, the end of the push rod, and the piston rod 402 of the syringe 4, but not limited thereto, and is preferably mounted at the end of the push rod.

Optionally, the contrast device provided in this embodiment further includes: a temperature detecting device and a warming device;

The temperature detecting device is configured to detect the real-time temperature of the contrast liquid in the injection device and send it to the controller; the controller is configured to determine whether the real-time temperature is within a preset temperature range, and control the warming device to warm the injection device according to the result of the determining. In this embodiment, the temperature detecting device and the warming device are used to control the contrast liquid in the injection device to a temperature close to the human body to reduce the discomfort of the patient as much as possible.

In a possible implementation manner, the controller further includes a control button or the like, and the controller receives the control signal of the control button and executes a corresponding control signal. The control button includes at least a main switch, a start stop button, a forward button, a back button, a speed adjustment knob, an emergency stop button, and the like. For example, the main switch button controls whether the controller is powered. The start stop button is used to start and stop the control object. The forward button is the forward motion that the controller uses to manipulate the control object. The back button is the back motion that the controller uses to manipulate the control object. The speed adjustment knob is the speed control that the controller uses to operate the control object. The emergency stop button is an emergency stop that the controller uses to operate the control object.

Further, the contrast device in this embodiment includes a remote controller that performs data communication with the controller. For example, the remote control includes a control button, a wireless communication module, and the like. Similarly, the controller has a built-in wireless communication module. The contrast device can be remotely remotely controlled by pressing the control button on the remote control. Further, the wireless communication module can adopt Bluetooth technology, WiFi wireless network technology, wireless radio frequency technology, and other technologies that can satisfy wireless communication between the shielded room and the observation room. In this way, the physician can perform the contrast operation in the observation room without having to stay in the shielded room to avoid being irradiated.

When the urethral angiography operation is performed by using the contrast device in the embodiment, the specific operation flow is:

First prepare the work: first move the component 8 (ie, the slider) to the right end of the slide; then fix the syringe 4 filled with the contrast liquid to the injection mount 5, and adjust the pusher device 3 to push the push rod against it. The piston rod end of the syringe 4; finally, one end of the interventional catheter 12 is in communication with the outlet end of the syringe 4, the other end of the interventional catheter 12 is inserted into the patient's lumen, while the interventional catheter 12 is passed through the guide block 6. More specifically, for example, the doctor can operate the advance button of the slide on the remote control to move the moving element 8 (ie, the slider) of the slide to the right end of the slide.

It should be noted that when adjusting the pusher device 3, the push rod is aligned with the central axis of the syringe 4 as much as possible, so as to ensure that the push rod of the push rod device 3 is in contact with the piston rod of the syringe 4 when the push rod is extended, thereby ensuring the contrast. The device successfully injects contrast fluid into the patient's lumen.

After the preparation is completed, the doctor moves from the shielding room to the observation room and performs urethrography. At this time, the doctor operates the controller to control the push rod of the pusher device 3 to extend, so that the contrast liquid is slowly injected from the syringe 4 into the patient's cavity; meanwhile, the manipulation moving member 8 is slowly moved to the left, so that the interventional catheter 12 gradually The patient's lumen is pulled out; after the angiography is completed, the controller is operated to stop the pusher device 3 and the slide. During the injection of the contrast medium, when the pressure in the patient's lumen is too large, the patient's ureteral obstruction or catheter bending, etc., the pressure sensor 10 mounted on the push rod detects the pressure greater than the preset value and then alarms and The pusher device 3 stops propulsion under the control of the controller. More specifically, for example, the doctor operates the forward button and the speed adjustment button of the pusher device 3 on the remote controller to control the push rod of the pusher device 3 to extend, so that the contrast liquid is slowly injected from the syringe 4 into the patient's cavity. At the same time, the doctor can operate the back button of the slide on the remote control, and the moving element 8 (ie, the slider) of the control slide is moved to the right end of the slide. After the angiography is completed, the doctor can operate the start button of the remote controller to stop the pusher device and the slide table. In the process of injecting the contrast medium, when a patient's ureteral obstruction or catheter bending occurs, the doctor can operate the emergency stop button of the remote controller to control the pusher device 3 to stop the advancement.

The contrast device provided in this embodiment includes an interventional catheter 12, an injection assembly, a catheter extraction assembly, and a controller for controlling the above components; the contrast fluid is injected into the lumen to be contrasted through the injection assembly and the interventional catheter 12; The assembly pulls the catheter 12 out of the lumen to be imaged; the catheter is also controlled by the controller to inject the contrast fluid into the lumen to be contrastd and the control catheter extraction assembly pulls the interventional catheter 12 out of the lumen to be contrastd. The contrast device provided by the embodiment can meet the two operation requirements of the injection contrast liquid and the extraction of the interventional catheter 12, and can also enable the doctor to perform the contrast operation in the observation room to prevent the doctor from being irradiated, which brings convenience for the contrast operation.

FIG. 2 is a schematic structural diagram of a contrast device according to still another embodiment of the present invention. Fig. 3 is a schematic view showing the structure of a telescopic medicine bottle in the contrast apparatus shown in Fig. 2; This embodiment is different from the contrast device of the embodiment shown in Fig. 1 in that the injection device in this embodiment is a stretchable drug bottle 11. As shown in FIG. 3, the pleats 13 of the stretchable drug bottle 11 are in the shape of a harpsichord for compression, and the front end of the stretchable drug bottle 11 is provided with a shoulder 14 for facilitating the expansion and contraction of the drug bottle 11 on the injection mounting member 5, and stretching The medicament bottle 11 is connected to the interventional catheter 12 through the quick connector 15, so that the telescopic drug bottle 11 can be quickly connected and separated from the interventional catheter 12, and the sealing property when the contrast medium is injected can be ensured.

FIG. 4 is a schematic structural diagram of a contrast device according to still another embodiment of the present invention. The catheter extraction assembly of the contrast device provided in this embodiment is a telescopic rod.

As an example, the catheter extraction assembly used in the imaging device of the present embodiment is a telescopic rod 30. Specifically, the front end of the telescopic rod 30 is provided with an extraction ring 500; when the extraction ring 500 is provided with the interventional catheter 12, The telescopic rod 30 can pull out the interventional catheter 12 that is inserted into the extraction ring 500 by the telescopic movement. Alternatively, the telescopic rod 30 may be any one of an electric telescopic rod, a hydraulic telescopic rod, and a pneumatic telescopic rod.

For example, the contrast device provided in this embodiment, the injection drive device is the above-mentioned push rod device 3, and the catheter pull-out assembly is a telescopic rod 30; as shown in FIG. 4, the push rod device mount 2, the injection mount 5. The guide blocks 6 are sequentially mounted on the base 1 at a certain interval; the pusher device 3 is mounted on the pusher device mount 2, the syringe 4 is mounted on the injection mount 5, and the telescopic rod 30 is mounted on the base 1. The interventional catheter 12 is sequentially passed through the extraction ring 500 and the guide block 6 on the telescopic rod 30. Alternatively, the guide block 6 is disposed on an extension of the central axis of the

syringe

4, 10 to 40 cm from the outlet end of the syringe 4. Before the insertion catheter 12 is pulled out of the patient's lumen, the telescopic rod 30 is in an extended state, at which time the guide block 6, the extraction ring 500, and the syringe 4 are on the same line. When the interventional catheter 12 is to be pulled out of the patient's lumen, the telescopic rod 30 is in a retracted state. During the retraction of the telescopic rod 30, the extraction ring 500 pulls the interventional catheter 12, and the interventional catheter 12 is pulled out of the patient. Cavity. It should be noted that a sufficient distance between the guide block 6 and the outlet of the syringe 4 is required to prevent the catheter from being excessively bent when the telescopic rod 30 is retracted, and the spacing is preferably 30 cm.

Further, the telescopic rod 30 is coupled to the controller, and the controller controls the telescopic rod 30 to pull the interventional catheter 12 that is threaded to the extraction ring 500 out of the lumen at a predetermined retraction speed. Specifically, in this embodiment, by using the controller to control the telescopic direction and the moving speed of the telescopic rod 30, the telescopic rod 30 can be controlled to be retracted at a preset retracting speed to control the interventional catheter to be pulled out of the patient's lumen to realize the doctor. Operate the controller in the observation room to pull out the interventional catheter to prevent the doctor from being affected by X-rays and other radiation.

Optionally, the pressure sensor 10 is mounted on a push rod of the pusher device 3. Further, the pressure sensor 10 and the pusher device 3 are both connected to the controller, and the controller controls the advancing speed of the pusher device 3 according to the pressure value collected by the pressure sensor 10, thereby controlling the pressure in the cavity to not exceed the safe value. For example, when the contrast medium injected in the patient's cavity is too much, the pressure in the patient's channel will be too large. When this happens, the pressure sensor will detect the pressure greater than the preset value, and then in the controller. Under the control, the pusher device 3 stops advancing to end the injection of the contrast medium to protect the patient. Then, for example, during the injection of the contrast medium, when a patient's ureteral obstruction or catheter bending occurs, when this occurs, the pressure sensor 10 also detects that the pressure is greater than a preset value, and then in the controller. Under the control, the pusher device 3 stops advancing to end the injection of the contrast medium to protect the patient. It should be noted that the pressure sensor 10 may be a strain gauge pressure sensor, a capacitive pressure sensor, a Hall pressure sensor, or the like, but is not limited thereto. The pressure sensor 10 can also be mounted on the inside of the push rod, the end of the push rod, and the piston rod of the syringe 4, but not limited thereto, and is preferably mounted at the end of the push rod.

It should be noted that the contrast device of the embodiment may also include a controller provided with a control button, a remote controller, a temperature detecting device, a warming device, and the like, and a controller, a remote controller, a temperature detecting device, and a control button provided with a control button. For the heating device and the like, refer to the description of the above embodiment, and details are not described herein again.

The contrast device provided by the embodiment can meet the two operation requirements of the injection contrast liquid and the extraction of the interventional catheter 12, and can also enable the doctor to perform the contrast operation in the observation room to prevent the doctor from being irradiated, which brings convenience for the contrast operation. Further, when the contrast device of the present embodiment is constituted by the pusher device 3 and the telescopic rod 30 or the like, the contrast of the pusher device 3 is controlled to control the injection device to inject the contrast liquid into the patient's lumen while the contrast is being performed. The telescoping rod 30 is manipulated to retract, and the extraction of the ring 500 pulls the interventional catheter 12, thereby pulling the interventional catheter 12 out of the patient's lumen. The contrast device provided in this embodiment is safe and reliable.

FIG. 5 is a schematic structural diagram of a contrast device according to another embodiment of the present invention. Figure 6 is a schematic view showing the structure of the catheter extraction assembly in the contrast device shown in Figure 5. The catheter extraction assembly of the contrast device provided in this embodiment comprises: a turntable 19 and a turntable drive assembly.

As an example, the contrast device provided in this embodiment includes a turntable 19 and a turntable drive assembly. Optionally, the outer circumferential surface of the turntable 19 is provided with a recess 36 that mates with the interventional catheter 12 to receive the interventional catheter 12. Rotation of the turntable drive assembly drive dial 19 enables the insertion of the interventional catheter 12 into the lumen to be contrasted and the insertion of the interventional catheter 12 into the recess 36. It should be noted that the turntable 19 may be a circular turntable, an elliptical turntable, a square turntable with rounded corners, or a combination of a plurality of figures, but is not limited thereto. Optionally, the turntable 19 is provided with a structure that facilitates winding of the interventional catheter 12, such as an equally spaced cross-hook or turntable 19 circumferentially disposed with a flange or the like.

In a possible implementation manner, the turntable driving assembly includes: a turntable driving motor 28 and a gear transmission; the gear transmission includes: a primary gear 24, a secondary gear 27, a mounting shaft 25; and a first gear connected through the mounting shaft 25. 24 and the secondary gear 27; the secondary gear 27 is coupled to the motor output shaft of the rotary drive motor 28 via a coupling, and the primary gear 24 is drivingly coupled to the rotary disk 19. Specifically, when the turntable drive motor 28 is operated, the motor output shaft of the turntable drive motor 28 rotates, and the kinetic energy output from the turntable drive motor 28 is converted into the kinetic energy of the turntable 19 by the gear transmission, and the drive turntable 19 is rotated about its own central axis. More specifically, as shown in FIG. 6, the base 1 is provided with a mounting hole 501 through which the mounting shaft 25 passes, and optionally a bearing 26 is mounted on the mounting hole 501. The mounting shaft 25 can be rotated better with respect to the mounting hole 501; the primary gear 24 is mounted above the base 1 while the primary gear 24 is coupled to one end of the mounting shaft 25; the secondary gear 27 is mounted below the base 1 At the same time, the secondary gear 27 is connected to the other end of the mounting shaft 25; in order to convert the kinetic energy outputted by the rotary drive motor 28 into the kinetic energy of the turntable 19 through the gear transmission, the secondary gear 27 drives the motor of the motor 28 through the coupling and the turntable. The output shaft is connected, and the primary gear 24 is drivingly connected to the turntable 19.

Further, the turntable drive motor 28 is coupled to a controller for controlling the turntable drive motor 28 to drive the turntable 19 to rotate at a predetermined rotational speed to pull the interventional catheter 12 out of the lumen. For example, the dial rotation speed button is set on the controller to adjust the selection speed of the dial, and can also be adjusted by the dial rotation speed button on the remote controller.

Specifically, in the embodiment, the injection device is a liquid pump 17, and the injection device is composed of a drug bottle 16, a liquid inlet tube 20, an outlet tube 21, a safety valve 18, a hydraulic sensor, etc., and the catheter is pulled out. The assembly includes a turntable 19, a turntable drive assembly, and the like. As shown in FIG. 5, the liquid pump 17, the injection mount 5, and the catheter extracting assembly are mounted on the base 1. The injection mount 5 can be a placement rack having a height that facilitates the smooth flow of the contrast fluid out of the medicament bottle 16 when the medicament bottle 16 is mounted at a high position on the placement rack. The liquid outlet of the drug bottle 16 communicates with the liquid inlet of the liquid pump 17 through the liquid inlet pipe 20; the liquid inlet of the safety valve 18 communicates with the liquid outlet of the liquid pump 17 through the liquid outlet pipe 21, and the liquid of the safety valve 18 is discharged. The port is connected to the interventional catheter 12, and the safety valve 18 is mounted on the housing of the liquid pump 17. Further, a hydraulic sensor is provided inside the liquid pump 17 or at the outlet of the liquid pump 17, and the contrast injected into the interventional catheter 12 is collected by the hydraulic sensor. The pressure value of the liquid. Further, the hydraulic sensor and the liquid pump 17 are both connected to the controller, and the controller controls the flow rate of the liquid pump 17 according to the data collected by the hydraulic sensor to control the pressure value of the contrast liquid injected into the interventional catheter 12, thereby controlling the pressure in the channel. Exceeded the safe value. The liquid pump 17 is fixed to the turntable 19, and the outer circumferential surface of the turntable 19 is provided with a recess 36, and the turntable 19 is provided with a notch for the insertion of the interventional catheter 12, optionally, a spring is disposed at a suitable position around the notch of the turntable 19. The compression tab 22 compresses the interventional catheter 12 to cause the interventional catheter 12 to better fit into the recess 36 as the turntable 19 is rotated. Optionally, a guide block 6 is mounted on the base 1 and the interventional catheter 12 passes through the guide block 6.

It should be noted that the liquid pump 17 includes, but is not limited to, a diaphragm pump, an electromagnetic pump, a peristaltic pump, a syringe pump, etc., and is preferably a peristaltic pump. The peristaltic pump uses a rotating roller to roll a flexible hose. The fluid in the hose moves with the rotation of the wheel, just like the two fingers pinch the hose. As the finger moves, the liquid follows. flow. The peristaltic pump has the advantages of high cleanliness, no pollution, high precision, good sealing performance, and the ability to transmit at the same flow rate in both directions. Further, the flow rate of the liquid pump 7 is easy to control, and it is possible to accurately inject the contrast medium into the lumen to be contrasted to avoid injecting too much contrast liquid, causing problems such as fever after the examination, retention of the contrast medium, and the like.

Before performing the contrast, one end of the interventional catheter 12 is first inserted into the patient's lumen, and the other end of the interventional catheter 12 is connected through the central hole of the guide block 6 to the outlet of the safety valve 18, while taking care to embed the interventional catheter 12 into the turntable. The groove 36 of the 19 is pressed by the spring pressing piece 22.

When performing the contrast, the starter fluid pump 17 can inject the contrast fluid in the vial 16 into the patient's lumen through the interventional catheter 12 while the spine drive assembly drives the turntable 19 to rotate, the interventional catheter 12 will be withdrawn from the patient's lumen and It is wound in the groove 36 of the turntable 19. Further, if the injection pressure of the liquid pump 17 is too large, the safety valve 18 will automatically open for pressure relief to ensure the patient's personal safety. At the same time, the controller controls the flow rate of the liquid pump 17 according to the data collected by the hydraulic sensor to control the pressure value of the contrast liquid injected into the interventional catheter 12, thereby controlling the pressure in the channel to not exceed the safe value. For example, the doctor can operate the liquid pump 17 of the remote control's liquid pump 17 to activate the liquid pump 17 to inject the contrast fluid in the vial 16 into the patient's lumen through the interventional catheter 12, while the doctor can operate the remote control's turntable. The start button activates the turntable drive assembly to drive the turntable 19 to rotate, at which time the interventional catheter 12 will be withdrawn from the patient's lumen and wrapped in the recess 36 of the turntable 19. After the interventional catheter is completely pulled out of the patient's lumen, the doctor can operate the start/stop button of the liquid pump 17 of the remote controller to turn off the liquid pump 17 to stop the injection of the contrast medium.

The contrast device provided by the embodiment can meet the two operation requirements of the injection contrast liquid and the extraction of the interventional catheter 12, and can also enable the doctor to perform the contrast operation in the observation room to prevent the doctor from being irradiated, which brings convenience for the contrast operation. Further, when the contrast device of the present embodiment is constituted by the liquid pump 17 and the turntable 19 or the like, the contrast liquid in the drug bottle 16 is driven by the liquid pump 17 to be injected into the patient's lumen during the contrast, since the catheter 12 is involved beforehand. The notch on the turntable 19 is worn while the drive dial 19 is rotated, and the interventional catheter 12 is pulled out from the patient's lumen and wound in the recess 36 of the turntable 19. The contrast device provided in this embodiment is safe and reliable.

FIG. 7 is a schematic structural diagram of a contrast device according to an embodiment of the present invention. Fig. 8 is a plan view of the contrast device shown in Fig. 7. The catheter extraction assembly of the contrast device provided in this embodiment includes a turntable 19 and a mating portion.

Specifically, the imaging device provided by the embodiment is the above-exemplified pusher device 3, and the catheter extraction assembly comprises a turntable 19 and a mating portion. As shown in FIG. 7, the mating portion and the turntable 19 cooperate to form a through space for the interventional catheter 12. In a possible implementation manner, the mating portion is the mating turntable 31; the mating turntable 31 is in the same plane as the turntable 19, and the outer circumferential surface of the mating turntable 31 is in contact with the outer circumferential surface portion of the turntable 19 to form the first through space 35. The first insertion space 35 is for penetrating the interventional catheter 12; the rotation of the engagement dial 31 and the turntable 19 is opposite, thereby allowing the interventional catheter 12 to be reliably pulled out of the patient's lumen.

Further, a tensioning device 32 is further included. The tensioning device 32 is disposed between the mating turntable 31 and the turntable 19 to adjust the pressing force between the mating turntable 31 and the turntable 19.

For example, when the interventional catheter 12 is to be pulled out, the turntable 19 is rotated counterclockwise by the rotary drive motor 28, and the interventional catheter 12 that is disposed in the first insertion space 35 is subjected to frictional force. The patient's lumen is gradually pulled out, and the turntable 31 is rotated clockwise correspondingly. Further, under the action of the tensioning device 32, the interventional catheter 12 is reliably pulled out of the patient's lumen. Alternatively, the turntable 19 and the mating turntable 31 have a diameter of between 2 and 15 cm, preferably a diameter of 8 cm. Optionally, the turntable 19 is provided with an arcuate recess 36 that mates with the interventional catheter 12, the arcuate recess 36 being provided with a non-slip material or an anti-slip line to increase the friction between the turntable 19 and the interventional catheter 12. . Optionally, the turntable 19 is mounted on the base 1 by a fixing plate 37, the turntable 31 is mounted on the base 1 through the movable plate 34, and the turntable 19 and the mating turntable 31 are symmetrically arranged on the same plane, which can further The turntable 19 is rotated to cooperate with the turntable 31 to better pull the interventional catheter 12 out of the patient's lumen. It should be noted that the fixing plate 37 is fixedly mounted on the base 1 , and the movable plate 34 is movably mounted on the base 1 . For example, the movable plate 34 is mounted on the base 1 through a pin, and the movable plate 34 can be opposite to the base 1 Turn. Further, the tensioning device 32 is disposed between the movable plate 34 and the fixed plate 37 to press the turntable 19 and the mating turntable 31 against each other. Optionally, the outer circumferential surface of the mating turntable 31 is provided with an arc-shaped recess 36. The arcuate recess 36 is provided with a non-slip material or an anti-slip pattern to increase the friction between the mating turntable 31 and the interventional catheter 12. . Further, in order to pull out the interventional catheter 12 more effectively, the drive motor can be provided in conjunction with the turntable 31, and the turntable 31 is rotated in the opposite direction of the rotation direction of the turntable 19 by the drive motor to more reliably make the interventional catheter 12 Pull out the patient's lumen.

It should be noted that the rotation of the turntable 19 can be driven by the turntable drive motor 28 while rotating with the turntable 31 under the driving of the turntable 19; or, the matching turntable 31 can be driven by the drive motor 28, and the rotation of the turntable 19 is matched with the turntable 31. The rotation of the turntable 19 can be driven by the turntable drive motor 28, and the turntable 31 can be driven by the drive motor 28. The rotation of the turntable 19 and the mating turntable 31 is determined according to actual conditions, and is not limited thereto.

The contrast device provided by the embodiment can meet the two operation requirements of the injection contrast liquid and the extraction of the interventional catheter 12, and can also enable the doctor to perform the contrast operation in the observation room to prevent the doctor from being irradiated, which brings convenience for the contrast operation. Further, when the contrast device of the present embodiment is constituted by the pusher device 3, the turntable 19, the mating turntable 31, and the like, the turntable 19 and the mating turntable 31 are fitted to each other to form a wearing space of the interventional catheter 12, while the turntable 19 is simultaneously Or the mating turntable 31 applies a frictional force to the contacting interventional catheter 12. During imaging, the injection device is controlled to inject the contrast fluid into the patient's lumen by controlling the advancement of the pusher device 3, and at the same time, in order to pull the interventional catheter 12 out of the patient's lumen, the turntable 19 is driven by the rotary drive motor 28. The lower rotation is performed while the turntable 31 is rotated in the opposite direction to the turntable 19, and the interventional catheter 12 is pulled out of the patient's lumen under the action of friction. Further, the pressing force between the mating turntable 31 and the turntable 19 can be adjusted by the tensioning device 32 provided between the turntable 19 and the turntable 31 to further ensure that the interventional catheter 12 is reliably pulled out of the patient's lumen.

FIG. 9 is a schematic structural diagram of a contrast device according to still another embodiment of the present invention. This embodiment is different from the contrast device shown in FIG. 7 in that the engaging portion in this embodiment is a wheel set.

In a possible implementation, the wheel set includes: a first pulley 38, a second pulley 39, a third pulley 41, and a belt 40; the first pulley 38, the second pulley 39, and the third pulley 41 are arranged in a triangle and pass through The belt 40 is drivingly connected; the belt 40 between the first pulley 38 and the second pulley 39 is in contact with the outer circumferential surface portion of the turntable 19 to form a second insertion space 43, and the second insertion space 43 is used to penetrate the interventional catheter 12 .

Further, the third pulley 41 is a tensioning wheel to adjust the pressing force between the wheel set and the turntable 19. For example, the third pulley 41 may be a tensioning wheel, or a tension spring 42 may be disposed to be coupled with the third pulley 41 to form a tensioning pulley, and the wheel set and the turntable 19 are adjusted by adjusting the spring expansion length of the tension spring 42. The amount of pressing force between them.

Specifically, the present embodiment is in contact with the outer circumferential surface portion of the turntable 19 by the belt 40 to form a second through space 43 through which the contact area of the turntable 19 and the interventional catheter 12 can be further increased, thereby increasing The friction between the turntable 19 and the interventional catheter 12 facilitates the successful removal of the catheter 12 from the patient's lumen. In use, the interventional catheter 12 is placed between the turntable 19 and the belt 40. Under the action of the tensioning pulley, the belt 40 is pressed against the turntable 19, at which time the turntable 19 is rotated counterclockwise under the action of friction. The interventional catheter 12 pulls out the patient's lumen.

The contrast device provided by the embodiment can meet the two operation requirements of the injection contrast liquid and the extraction of the interventional catheter 12, and can also enable the doctor to perform the contrast operation in the observation room to prevent the doctor from being irradiated, which brings convenience for the contrast operation. Further, when the contrast device of the present embodiment is composed by the pusher device 3, the turntable 19, the wheel set, etc., the turntable 19 and the wheel set cooperate to form a wearing space of the interventional catheter 12, while the turntable 19 or the wheel set 1 applies a frictional force to the contacting interventional catheter 12. During angiography, when it is necessary to pull the interventional catheter 12 out of the patient's lumen, the turntable 19 is rotated by the turntable drive motor 28 to rotate the wheel set to realize the transmission of the belt 40, and wear under the action of friction. The interventional catheter 12 disposed between the turntable 19 and the belt 40 will smoothly pull out the patient's lumen. Further, the pressing force between the wheel set and the turntable 19 can be adjusted by setting the third pulley 41 in the wheel set as the tensioning wheel, thereby ensuring that the interventional catheter 12 is reliably pulled out of the patient's lumen.

Finally, it should be noted that the above embodiments are only used to explain the technical solutions of the embodiments of the present application, and are not limited thereto; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the spirit of the technical solutions of the embodiments of the present application. In the case of the scope, it can be understood and implemented.

Through the description of the above embodiments, those skilled in the art can clearly understand that the various embodiments can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware. Based on such understanding, the above-described technical solutions may be embodied in the form of a software product in essence or in the form of a software product, which may be stored in a computer readable storage medium, the computer readable recording medium including Used to store or transfer information in a form readable by a computer (eg, a computer).

Those skilled in the art will appreciate that embodiments of the embodiments of the invention may be provided as a method, apparatus (device), or computer program product. Thus, embodiments of the invention may be in the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, embodiments of the invention may take the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

Embodiments of the invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the present invention has been described, it will be apparent that those skilled in the art can make various changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the invention without departing from the spirit and scope of the embodiments of the invention. Therefore, it is intended that the present invention cover the modifications and variations of the embodiments of the present invention.

Claims

An imaging device, comprising: an interventional catheter, an injection assembly, a catheter extraction assembly, and a controller for controlling the components;

One end of the interventional catheter is for connection with an injection end of the injection assembly, and the other end of the interventional catheter is for intervention into a lumen to be contrasted;

The injection assembly is configured to inject a contrast medium into the lumen to be contrasted through the interventional catheter;

The catheter extraction assembly is configured to pull the interventional catheter out of the lumen to be contrastd.
The device according to claim 1, wherein said injection assembly comprises: a base, an injection drive mounted on said base, and an injection device mounted on said base by an injection mount;

The injection drive device is used to drive the injection device to inject contrast medium into the lumen to be contrasted through the interventional catheter.
The device according to claim 2, wherein the injection driving device is: a push rod device; the push rod device is mounted on the base by a push rod mount;

a push rod of the push rod device abuts against a pushing end of the injection device to drive the injection device to inject the contrast liquid into the lumen to be contrasted;

The pusher device is coupled to the controller, the controller for controlling an injection speed of the contrast fluid to the lumen to be contrasted by controlling an advancement speed of the pusher device.
The apparatus according to claim 3, wherein a pressure sensor is mounted on the push rod of the pusher device, the pressure sensor is coupled to the controller; and the controller is configured to collect according to the pressure sensor The pressure value controls the advancement speed of the pusher device to control the pressure in the passage to not exceed a safe value.
The device according to claim 4, wherein the pusher device is an electric push rod or an electrohydraulic push rod.
The device according to claim 5, wherein said injection device is a syringe; the liquid outlet end of said syringe is an injection end of said injection device, and the piston rod end of said syringe is said injection device Push the end.
The device according to claim 5, wherein the injection device is a telescopic drug bottle, the liquid outlet end of the telescopic drug bottle is an injection end of the injection device, the telescopic drug bottle and the telescopic tube The opposite end of the liquid outlet end of the medicament bottle is the push end of the injection device.
The device according to claim 2, wherein the injection driving device is a liquid pump, and the liquid pump is configured to drive the injection device to inject the contrast liquid into the lumen to be contrasted;

The liquid pump is coupled to the controller, and the controller is configured to control an injection speed of the contrast medium by injecting the contrast medium into the lumen to be contrasted by controlling the liquid pump.
The device according to claim 8, wherein the injection device comprises: a drug bottle, a liquid inlet tube, a liquid outlet tube, a safety valve, a hydraulic pressure sensor, and the medicine bottle is mounted on the injection mounting member. The liquid outlet of the medicament bottle communicates with the liquid inlet of the liquid pump through the liquid inlet tube; the liquid inlet of the safety valve communicates with the liquid outlet of the liquid pump through the liquid outlet tube, The outlet end of the safety valve is an injection end of the injection device for connecting the interventional catheter; the safety valve is for controlling the pressure of the contrast liquid entering the cavity to not exceed a preset value; The hydraulic sensor is disposed inside the liquid pump or at a liquid outlet of the liquid pump for collecting a pressure value of the contrast liquid injected into the interventional catheter.
The apparatus according to claim 2, wherein said duct extracting assembly is a slide table; said slide table comprises: a moving member, a fixing member, a slide table driving motor; said base member is mounted on said moving member The slide table drive motor is configured to drive the moving member to move at the fixed member to pull the interventional catheter out of the lumen.
The apparatus according to claim 10, wherein said slide table is coupled to said controller, said controller for controlling said slide table drive motor to drive said moving member at said preset moving speed at said The fixation element moves to pull the interventional catheter out of the lumen.
The apparatus according to claim 11, wherein said slide table is a ball screw type slide table, a rack and pinion type slide table, a timing belt type slide table, a hydraulic cylinder type slide table, and a linear motor type slide table. Any of them.
The device according to claim 2, wherein said catheter extraction assembly comprises: a telescopic rod; a front end of said telescopic rod is provided with an extraction ring; said telescopic rod being adapted to be worn to said extraction The interventional catheter of the annulus is withdrawn from the lumen.
The device according to claim 2, wherein the catheter extraction assembly comprises: a turntable, a turntable drive assembly;

The turntable drive assembly is configured to drive the turntable to rotate to pull the interventional catheter out of the lumen.
The device of claim 14 wherein the outer circumferential surface of the dial is provided with a recess that mates with the interventional catheter to receive the interventional catheter.
The device of claim 14 wherein said catheter extraction assembly further comprises: a mating portion; said mating portion cooperating with said dial to form a passage space for said interventional catheter.
The device according to claim 16, wherein the engaging portion is a mating turntable; the mating turntable is in the same plane as the turntable, and an outer circumferential surface of the mating turntable and an outer circumferential surface portion of the turntable Contacting to form a first through space, the first through space for penetrating the interventional catheter; the mating turntable is opposite to the direction of rotation of the turntable.
The device of claim 16 wherein said mating portion is a wheel set.
The device according to claim 18, wherein the wheel set comprises: a first pulley, a second pulley, a third pulley, and a belt; the first pulley, the second pulley, and the third pulley are arranged in a triangle shape and Connecting through the belt drive; a belt between the first pulley and the second pulley is in contact with an outer circumferential surface portion of the turntable to form a second wearing space, and the second wearing space is for wearing The interventional catheter is provided.
The apparatus according to any one of claims 2 to 19, further comprising: a temperature detecting means and a warming means;

The temperature detecting device is configured to detect a real-time temperature of the contrast liquid in the injection device and send it to the controller;

The controller is configured to determine whether the real-time temperature is within a preset temperature range, and control the warming device to warm the injection device according to the result of the determination.
The device of claim 20 wherein said contrast device comprises a remote control; said remote control being in data communication with said controller.