Pressure charging and releasing device and pressure charging and releasing system

Abstract

The utility model discloses a pressure charging and releasing device and a pressure charging and releasing system. The pressure charging and releasing device comprises a pressure charging and releasing injector; the switching valve is connected with the pressure charging and releasing injector and used for being connected with the balloon catheter, the switching valve is provided with an exhaust port and comprises a first position state and a second position state, when the switching valve is in the first position state, the pressure charging and releasing injector is communicated with the balloon catheter, and when the switching valve is in the second position state, the pressure charging and releasing injector is communicated with the exhaust port; the automatic telescopic device is connected with the pressure charging and releasing injector and can output telescopic motion to the pressure charging and releasing injector, and when the automatic telescopic device stretches out, the pressure charging and releasing injector is driven to inject the working medium into the balloon catheter; and when the automatic telescopic device retracts, the inflation and decompression injector is driven to withdraw the working medium or air in the balloon catheter. The automatic telescopic device is used for outputting telescopic motion to the pressure filling and releasing injector to drive the pressure filling and releasing injector to act, and pressure filling and releasing of the balloon catheter can be achieved without manual operation of the pressure filling and releasing injector.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field more specifically, relate to a kind of pressure charging and discharging device. In addition, the utility model further relates to a kind of pressure charging and discharging system comprising the pressure charging and discharging device. BACKGROUND

[0002] In clinical medicine, balloon catheter is widely used in blood vessel obstruction, stenosis and blood vessel rupture treatment, treatment, under the guidance of medical imaging equipment, guide wire, balloon catheter etc. are into human body along blood vessel, and after balloon catheter reaches target blood vessel, pressure charging and discharging device is carried out to balloon catheter, to realize the opening and retraction of the balloon of balloon catheter, to complete treatment by dilating blood vessel or plugging bleeding point.

[0003] In prior art, pressure charging and discharging device includes needle cylinder and push rod movably arranged in needle cylinder, needle cylinder is used to connect with balloon catheter, push rod is fixed in push rod fixing device by screw connection, when using, doctor realizes pressure charging and discharging of balloon catheter by manually rotating push rod.

[0004] It can be seen that this pressure charging and discharging device needs to be manually operated by doctor, which brings many inconveniences to operation.

[0005] Therefore, how to provide a kind of pressure charging and discharging device capable of avoiding user manual operation for pressure charging and discharging is the problem that the technical personnel in the prior art are anxious to solve at present. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model aims at providing a kind of pressure charging and discharging device, which can avoid user manual operation for pressure charging and discharging.

[0007] Another object of the utility model is to provide a kind of pressure charging and discharging system comprising the pressure charging and discharging device, which can avoid user manual operation for pressure charging and discharging.

[0008] In order to achieve the above object, the utility model provides the following technical scheme:

[0009] A kind of pressure charging and discharging device, comprising:

[0010] Pressure charging and discharging syringe;

[0011] Switching valve, connect with the pressure charging and discharging syringe, and be used to connect with balloon catheter, the switching valve is equipped with exhaust port, and includes first position state and second position state, when the switching valve is in the first position state, the pressure charging and discharging syringe is communicated with the balloon catheter, when the switching valve is in the second position state, the pressure charging and discharging syringe is communicated with the exhaust port;

[0012] An automatic telescopic device is connected with the pressure charging and discharging injector and can output telescopic movement to the pressure charging and discharging injector. When the automatic telescopic device extends, it drives the pressure charging and discharging injector to inject working medium into the balloon catheter. When the automatic telescopic device retracts, it drives the pressure charging and discharging injector to draw back the working medium or air in the balloon catheter.

[0013] Optionally, the automatic telescopic device comprises:

[0014] A pushing member is connected with the pressure charging and discharging injector.

[0015] A first host is connected with the pushing member and is used to control the telescopic movement of the pushing member.

[0016] Optionally, the first host is provided with a sliding groove, and the pushing member is in sliding connection with the sliding groove.

[0017] Optionally, the first host is provided with a first mounting portion, and the pressure charging and discharging injector is mounted on the first mounting portion.

[0018] Optionally, the first host is provided with a second mounting portion, and the switching valve is mounted on the second mounting portion.

[0019] Optionally, the first host is provided with a display and interaction portion, which is used for the user to set pressure charging and discharging parameters, select a pressure charging and discharging working mode, and / or display the pressure in the balloon of the balloon catheter.

[0020] Optionally, the first host is provided with an emergency stop module, which is used to control the pushing member to stop working when the pressure in the balloon of the balloon catheter suddenly drops.

[0021] Optionally, the switching valve comprises a movable switching member, and the pressure charging and discharging device further comprises:

[0022] A switching valve control member is connected with the switching member and is used to drive the switching member to act, so as to switch the switching valve between the first position state and the second position state.

[0023] Optionally, the switching valve has a pressure port, and a pressure detection device is connected with the pressure port to detect the pressure in the balloon of the balloon catheter.

[0024] Optionally, the exhaust port is provided with a one-way valve, and the inlet of the one-way valve is in communication with the inside of the switching valve.

[0025] A pressure charging and discharging system comprises a balloon catheter and any one of the above pressure charging and discharging devices, and the balloon catheter is connected with the switching valve of the pressure charging and discharging device.

[0026] Optionally, it further comprises:

[0027] The second host is connected to the balloon catheter and the automatic telescopic device of the inflation and relief device respectively, and is used for performing shock wave therapy through the balloon catheter after the automatic telescopic device drives the inflation and relief syringe of the inflation and relief device to inflate the balloon catheter.

[0028] The pressure-charging and pressure-releasing device provided by the present invention has the following beneficial effects: by providing an automatic telescopic device, the automatic telescopic device is used to output telescopic motion to the pressure-charging and pressure-releasing syringe, thereby driving the pressure-charging and pressure-releasing syringe to operate, thereby causing the pressure-charging and pressure-releasing syringe to inject a working medium into the balloon catheter, or causing the pressure-charging and pressure-releasing syringe to withdraw the working medium or air from the balloon catheter. In other words, the pressure-charging and pressure-releasing syringe can be used to charge and release the pressure of the balloon catheter without manual operation of the pressure-charging and pressure-releasing syringe. In this way, when performing interventional treatment using a balloon catheter, the doctor's attention can be avoided from being distracted by operating the pressure-charging and pressure-releasing syringe, allowing the doctor to focus more on the surgery, thereby saving surgical time and reducing surgical risks. In addition, the automatic telescopic device is used to automatically control the pressure-charging and pressure-releasing syringe to perform the charging and pressure-releasing action, which is conducive to precise pressure control, can greatly increase pressure stability, and avoid the actual pressure in the balloon of the balloon catheter being greater than the target pressure, thereby reducing the risk of balloon rupture and avoiding surgical failure due to balloon rupture.

[0029] The pressure charging and releasing system provided by the utility model includes the above-mentioned pressure charging and releasing device and has the same beneficial effects as the above-mentioned pressure charging and releasing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0031] Figure 1 A schematic structural diagram of a switching valve of a pressure-charging and pressure-releasing device provided by a specific embodiment of the present invention when connected to a balloon catheter;

[0032] Figure 2 for Figure 1 A top view of the first main unit of the automatic telescopic device of the mid-fill pressure relief device;

[0033] Figure 3 A schematic structural diagram of a switching valve provided in a specific embodiment of the present utility model;

[0034] Figure 4 This is a structural diagram of a pressure charging and releasing system provided in a specific embodiment of the present utility model.

[0035] Reference numerals:

[0036] 1-Filling and decompression syringe; 2-Switching valve; 21-Exhaust port; 22-Switching member; 23-Pressure port; 24-First interface; 25-Second interface; 3-Automatic telescopic device; 31-Pushing member; 32-First host; 321-Slide; 322-First mounting part; 323-Second mounting part; 324-Display interaction part; 4-Switching valve control member; 5-Pressure detection device; 6-One-way valve; 7-Balloon catheter; 8-Second host. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] The core of the present invention is to provide a pressure-charging and pressure-releasing device, which can avoid manual operation of the user for pressure-charging and pressure-releasing. Another core of the present invention is to provide a pressure-charging and pressure-releasing system including the pressure-charging and pressure-releasing device, which can avoid manual operation of the user for pressure-charging and pressure-releasing.

[0039] Please refer to Figure 1 The embodiment of the present invention provides a pressure-charging and pressure-relieving device, comprising a pressure-charging and pressure-relieving syringe 1, a switching valve 2, and an automatic telescopic device 3. The pressure-charging and pressure-relieving syringe 1 is connected to the switching valve 2 and the automatic telescopic device 3, respectively. The switching valve 2 is also used to connect to the balloon catheter 7. The switching valve 2 is provided with an exhaust port 21 (such as Figure 3 As shown), the switching valve 2 includes a first position state and a second position state. When the switching valve 2 is in the first position state, the charging and releasing pressure syringe 1 is connected to the balloon catheter 7. When the switching valve 2 is in the second position state, the charging and releasing pressure syringe 1 is connected to the exhaust port 21. The automatic telescopic device 3 can output a telescopic movement to the charging and releasing pressure syringe 1. When the automatic telescopic device 3 is extended, it drives the charging and releasing pressure syringe 1 to inject the working medium into the balloon catheter 7. When the automatic telescopic device 3 is retracted, it drives the charging and releasing pressure syringe 1 to withdraw the working medium or air in the balloon catheter 7.

[0040] That is, the embodiment sets the automatic telescopic device 3, uses the automatic telescopic device 3 to output the telescopic movement to the pressure charging and discharging injector 1, drives the pressure charging and discharging injector 1 to act, and thus makes the pressure charging and discharging injector 1 inject the working medium into the balloon catheter 7 or make the pressure charging and discharging injector 1 suck the working medium or air in the balloon catheter 7. That is, the pressure charging and discharging injector 1 can be used to charge and discharge the balloon catheter 7 without manual operation, which can avoid the distraction of the doctor caused by the operation of the pressure charging and discharging injector 1, make the doctor more focused on the operation, and thus save the operation time and reduce the operation risk. In addition, the automatic telescopic device 3 is used to automatically control the pressure charging and discharging injector 1 to charge and discharge, which is beneficial to the accurate control of the pressure, can greatly increase the pressure stability, avoid the actual pressure in the balloon of the balloon catheter 7 greater than the target pressure, and thus reduce the risk of balloon damage and avoid the operation failure caused by the balloon damage.

[0041] Specifically, during the operation, the balloon of the balloon catheter 7 is charged and discharged, the switching valve 2 is in the first position state, the pressure charging and discharging injector 1 is communicated with the balloon catheter 7 through the switching valve 2, the automatic telescopic device 3 outputs the telescopic movement, the telescopic movement acts on the pressure charging and discharging injector 1, the pressure charging and discharging injector 1 injects the working medium (such as the mixture of physiological saline and contrast agent) into the balloon of the balloon catheter 7, increases the pressure in the balloon, and makes the balloon open. When the pressure charging and discharging injector 1 completes the pressure charging in the balloon, the automatic telescopic device 3 outputs the telescopic movement, drives the pressure charging and discharging injector 1 to suck the working medium in the balloon catheter 7, discharges the pressure in the balloon, and completes the treatment. During the operation, the above process can be repeated for a predetermined number of times.

[0042] In addition, the pressure charging and discharging injector 1 can be used to exhaust the balloon catheter 7, that is, when the balloon of the balloon catheter 7 needs to be exhausted, the switching valve 2 is in the first position state, at this time, the pressure charging and discharging injector 1 is communicated with the balloon catheter 7 through the switching valve 2, the automatic telescopic device 3 outputs the telescopic movement, thus the automatic telescopic device 3 drives the pressure charging and discharging injector 1 to suck the air in the balloon catheter 7, when the pressure charging and discharging injector 1 completes the suction, the switching valve 2 is switched to the second position state, at this time, the pressure charging and discharging injector 1 is in the non-communication state with the balloon catheter 7, the pressure charging and discharging injector 1 is communicated with the exhaust port 21, in this case, the automatic telescopic device 3 outputs the telescopic movement, drives the pressure charging and discharging injector 1 to exhaust the air in the pressure charging and discharging injector 1 through the exhaust port 21, and thus completes the exhaust. Of course, the above process can be repeated for multiple times of exhaust by setting the exhaust times.

[0043] It should be noted that, in the above working process, after the pressure charging of the pressure charging and discharging injector 1 is completed, the automatic telescopic device 3 can drive the pressure charging and discharging injector 1 to inject the working medium into the balloon catheter 7, and the pressure in the balloon catheter 7 reaches the target pressure and is maintained for a first preset time, which indicates that the pressure charging is completed. At this time, the automatic telescopic device 3 can drive the pressure charging and discharging injector 1 to withdraw the working medium in the balloon catheter 7, and a second preset time for the automatic telescopic device 3 to drive the pressure charging and discharging injector 1 to withdraw can be set. Similarly, in the exhaust process, after the pressure charging and discharging injector 1 is withdrawn, the automatic telescopic device 3 can drive the pressure charging and discharging injector 1 to withdraw the air in the balloon catheter 7, and the position state of the switching valve 2 can be switched for a third preset time, which indicates that the pressure charging and discharging injector 1 is withdrawn. At this time, the position state of the switching valve 2 can be switched to facilitate exhaust.

[0044] In addition, it can be understood that the exhaust port 21 refers to the gas in the switching valve 2 being exhausted to the outside, and the external air cannot enter the switching valve 2. In this way, when the pressure charging and discharging injector 1 withdraws the air in the balloon catheter 7, the inside of the pressure charging and discharging injector 1 is in a negative pressure state. In this case, when the pressure charging and discharging injector 1 is exhausted, the automatic telescopic device 3 releases the pressure charging and discharging injector 1, so that the pressure charging and discharging injector 1 returns to the initial position under the action of the negative pressure in the inside thereof, so that the air in the inside thereof is exhausted through the exhaust port 21. Of course, in order to exhaust more completely, the automatic telescopic device 3 can drive the pressure charging and discharging injector 1 to extend by a preset length, so that the air in the inside of the pressure charging and discharging injector 1 is completely exhausted.

[0045] It should be noted that the specific structure of the automatic telescopic device 3 is not limited in this embodiment, as long as it can output the telescopic movement to the pressure charging and discharging injector 1 to drive the pressure charging and discharging injector 1 to inject the working medium into the balloon catheter 7 or withdraw the working medium or air in the balloon catheter 7.

[0046] Please continue to refer to Figure 1 In some embodiments, the automatic telescopic device 3 includes a pushing piece 31 and a first host 32, the pushing piece 31 is connected with the pressure charging and discharging injector 1, and the first host 32 is connected with the pushing piece 31 and is used for controlling the pushing piece 31 to extend or retract. That is, the first host 32 is used for controlling the pushing piece 31 to extend or retract in this embodiment, and the pushing piece 31 plays a role of adapting and transmitting, and transmits the movement and power output by the first host 32 to the pressure charging and discharging injector 1. It can be understood that the existence of the pushing piece 31 facilitates the reasonable layout of the first host 32 and the pressure charging and discharging injector 1, so as to facilitate the connection of the pressure charging and discharging injector 1 with the first host 32.

[0047] It should be noted that the specific structure of the pushing piece 31 is not limited in this embodiment, and considering the simplicity and convenience of the structure, the pushing piece 31 is a rod-shaped piece in some embodiments.

[0048] In addition, please refer to Figure 2 , in order to ensure the stability of the extension and retraction of the pusher 31, in some embodiments, the first host 32 is provided with a sliding groove 321, and the pusher 31 is in sliding connection with the sliding groove 321. That is, the pusher 31 is arranged in the sliding groove 321 and can slide relative to the sliding groove 321. When the first host 32 drives the pusher 31 to extend and retract, the pusher 31 slides in the sliding groove 321, and the pusher 31 slides along the direction defined by the sliding groove 321, thereby improving the stability of the extension and retraction of the pusher 31 and the correctness of the extension and retraction direction, and further ensuring the accuracy of the injection and backflow movement of the pressure charging and pressure releasing syringe 1, and improving the reliability of the pressure charging and pressure releasing device.

[0049] In addition, please refer to Figure 2 , in order to facilitate the use and assembly of the pressure charging and pressure releasing syringe 1, in some embodiments, the first host 32 is provided with a first mounting portion 322, and the pressure charging and pressure releasing syringe 1 is mounted on the first mounting portion 322. That is, the first host 32 in this embodiment also has the function of mounting and carrying the pressure charging and pressure releasing syringe 1, so that the pressure charging and pressure releasing syringe 1 is integrated on the first host 32 during use, facilitating the installation and use of the pressure charging and pressure releasing syringe 1. It should be noted that the specific structure of the first mounting portion 322 is not limited in this embodiment, as long as the pressure charging and pressure releasing syringe 1 can be mounted on the first mounting portion 322. In some embodiments, the first mounting portion 322 includes a first mounting groove, and the pressure charging and pressure releasing syringe 1 is fixed in the first mounting groove. It can be understood that during installation, the pressure charging and pressure releasing syringe 1 is placed in the first mounting groove for fixation, and the first mounting groove is beneficial to limiting the pressure charging and pressure releasing syringe 1, facilitating the quick installation and positioning of the pressure charging and pressure releasing syringe 1.

[0050] In addition, please refer to Figure 2 , in order to facilitate the use and assembly of the switching valve 2, in some embodiments, the first host 32 is provided with a second mounting portion 323, and the switching valve 2 is mounted on the second mounting portion 323. That is, the first host 32 in this embodiment also has the function of mounting and carrying the switching valve 2, so that the switching valve 2 is integrated on the first host 32 during use, facilitating the installation and use of the switching valve 2. It should be noted that the specific structure of the second mounting portion 323 is not limited in this embodiment, as long as the switching valve 2 can be mounted on the second mounting portion 323. In some embodiments, the second mounting portion 323 includes a second mounting groove, and the switching valve 2 is fixed in the second mounting groove. It can be understood that during installation, the switching valve 2 is placed in the second mounting groove for fixation, and the second mounting groove is beneficial to limiting the switching valve 2, facilitating the quick installation and positioning of the switching valve 2.

[0051] In addition, please refer to Figure 2In some embodiments, the first host 32 is provided with a display interaction unit 324 for setting the inflation and deflation parameters, and / or selecting the inflation and deflation mode, and / or displaying the pressure in the balloon of the balloon catheter 7. That is, the first host 32 in the present embodiment also has the function of screen display and human-computer interaction, and the inflation and deflation program and the exhaust program can be set on the first host 32. During the operation, the doctor only needs to select the inflation and deflation program or the exhaust program through the display interaction unit 324, and / or set the corresponding parameters of the selected program. For example, the first host 32 includes the inflation and deflation mode and the exhaust mode, and the inflation and deflation mode or the exhaust mode can be selected through the display interaction unit 324 according to the needs. The parameters of each working mode can be pre-set parameters, or can be set through the display interaction unit 324, for example, the number of repetitions, the holding time and the target pressure in each working mode can be set through the display interaction unit 324.

[0052] In addition, in some embodiments, the first host 32 is provided with an emergency stop module for controlling the pusher 31 to stop working when the pressure in the balloon of the balloon catheter 7 drops suddenly. That is, during the operation, when the balloon of the balloon catheter 7 is damaged and the pressure drops suddenly, the first host 32 controls the pusher 31 to stop working immediately through the emergency stop module, so as to prevent accidents from occurring.

[0053] In addition, please refer to Figure 3 , in order to facilitate the switching valve 2 to switch the position state, in some embodiments, the switching valve 2 includes a movable switching piece 22, and the inflation and deflation device further includes a switching valve control piece 4 (as shown in Figure 2 ), which is connected with the switching piece 22 and is used to drive the switching piece 22 to act, so as to switch the switching valve 2 between the first position state and the second position state. That is, when it is needed to switch the position state of the switching valve 2, the switching valve control piece 4 is used to control the switching piece 22 to act, so as to change the position of the switching piece 22, and further change the internal conduction channel of the switching valve 2, so that the inflation and deflation syringe 1 is communicated with the balloon catheter 7 or the exhaust port 21, and the switching valve 2 is switched between the first position state and the second position state.

[0054] Please refer to Figure 3It can be understood that, in order to facilitate the connection of the switching valve 2 with the balloon catheter 7 and the pressure charging and discharging injector 1 respectively, in the above-mentioned various embodiments, the switching valve 2 is provided with a first interface 24 and a second interface 25, the first interface 24 is connected with the pressure charging and discharging injector 1, and the second interface 25 is used for being connected with the balloon catheter 7. That is, when the switching valve 2 is in the first position state, the channel between the first interface 24 and the second interface 25 is conducted, so that the pressure charging and discharging injector 1 can be communicated with the balloon catheter 7; when the switching valve 2 is in the second position state, the channel between the first interface 24 and the exhaust port 21 is conducted, so that the pressure charging and discharging injector 1 can be communicated with the exhaust port 21.

[0055] It should be noted that the implementation mode of the switching valve control member 4 and the action mode of the switching member 22 are not limited in the embodiment, for example, the switching valve control member 4 is a power member which can output rotary motion, and the switching member 22 is rotatable, that is, the switching valve 2 is switched between the first position state and the second position state by controlling the switching member 22 to rotate through the switching valve control member 4. In addition, the switching valve control member 4 can have a control function itself, which can receive a switching signal and drive the switching member 22 to act. In other embodiments, the switching valve control member 4 can only have a driving function, and the switching valve control member 4 is connected with the first host 32 of the automatic telescopic device 3, and the first host 32 controls the switching valve control member 4 to act according to the switching signal, so that the switching valve control member 4 drives the switching member 22 to realize position switching. In addition, the switching signal is not specifically limited in the embodiment, for example, in the exhaust process, the switching signal can be the signal that the pressure charging and discharging injector 1 is completed, that is, when the pressure charging and discharging injector 1 is completed, the first host 32 controls the switching valve control member 4 to act, so that the switching valve control member 4 drives the switching member 22 to realize position switching.

[0056] In addition, please continue to refer to Figure 3 In order to facilitate the detection of the pressure in the balloon catheter 7, in some embodiments, the switching valve 2 has a pressure port 23, and the pressure detection device 5 is connected with the pressure port 23 to detect the pressure in the balloon of the balloon catheter 7. That is, in the embodiment, the pressure detection device 5 is installed on the pressure port 23 of the switching valve 2 to realize the real-time detection of the pressure in the balloon of the balloon catheter 7 by the pressure detection device 5. Further, in some embodiments, the pressure detection device 5 is connected with the automatic telescopic device 3 in a wireless or wired manner, for example, is connected with the first host 32 of the automatic telescopic device 3, so that the automatic telescopic device 3 (such as the first host 32) can read the pressure data acquired by the pressure detection device 5 in real time, so as to control the pressure charging and discharging injector 1 to charge the balloon catheter 7, for example, when the actual pressure in the balloon reaches the target pressure, the automatic telescopic device 3 controls the pressure charging and discharging injector 1 to keep for a predetermined time length, etc.

[0057] In addition, please refer to Figure 1 In order to avoid external air entering the exhaust port 21, in some embodiments, the exhaust port 21 is provided with a one-way valve 6, the inlet of the one-way valve 6 is in communication with the inside of the switching valve 2. That is, by providing the one-way valve 6 in the exhaust port 21, the one-way valve 6 is used to make the air inside the pressure charging and pressure releasing syringe 1 only be able to be discharged to the outside through the exhaust port 21 of the switching valve 2, and the external air cannot enter the inside of the pressure charging and pressure releasing syringe 1 through the exhaust port 21. This structure is simple and convenient to set.

[0058] Please refer to Figure 4 In addition to the above pressure charging and pressure releasing device, the utility model also provides a pressure charging and pressure releasing system comprising the pressure charging and pressure releasing device disclosed in the above embodiments, and the pressure charging and pressure releasing system further comprises a balloon catheter 7, which is connected with the switching valve 2 of the pressure charging and pressure releasing device.

[0059] That is, the pressure charging and pressure releasing device is used to perform pressure charging, pressure releasing and exhaust operation on the balloon catheter 7, and has the beneficial effects of the pressure charging and pressure releasing device, which will not be described here.

[0060] Further, please refer to Figure 4 In some embodiments, the pressure charging and pressure releasing system further comprises a second host 8, which is connected with the balloon catheter 7 and the automatic telescopic device 3 of the pressure charging and pressure releasing device respectively, and is used to perform shock wave treatment through the balloon catheter 7 after the automatic telescopic device 3 drives the pressure charging and pressure releasing syringe 1 of the pressure charging and pressure releasing device to complete pressure charging to the balloon catheter 7. That is, the automatic telescopic device 3 sends a signal to the second host 8, so that the second host 8 starts shock wave treatment.

[0061] For example, in actual use, the second host 8 is connected with the automatic telescopic device 3, and in operation, the balloon catheter 7 is first exhausted according to the above exhaust process, after the doctor pushes the balloon catheter 7 to the target blood vessel, the treatment is triggered, the automatic telescopic device 3 drives the pressure charging and pressure releasing syringe 1 to charge pressure to the balloon catheter 7, when the pressure in the balloon catheter 7 reaches the target pressure, it is maintained for a period of time, at the same time, the automatic telescopic device 3 sends a treatment signal to the second host 8, at this time, the second host 8 controls the balloon catheter 7 to perform shock wave treatment, after a treatment cycle, the automatic telescopic device 3 drives the pressure charging and pressure releasing syringe 1 to perform pressure releasing to the balloon catheter 7, restores blood perfusion, and completes a treatment.

[0062] It should be noted that the specific structure of the second host 8 is not limited in the embodiment, as long as the second host 8 can realize shock wave treatment through the balloon catheter 7, and those skilled in the art can participate in related technologies, which will not be described here.

[0063] Further, in order to prevent surgical accidents, in some embodiments, the automatic telescopic device 3 comprises an emergency stop module for stopping the telescopic movement of the automatic telescopic device 3 when the balloon of the balloon catheter 7 is damaged and the pressure drops suddenly, and sending an emergency stop signal to the second host 8 through the automatic telescopic device 3 to make the second host 8 terminate the shock wave treatment, so as to prevent surgical accidents.

[0064] It should also be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions.

[0065] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0066] The above provides a detailed introduction to the pressure charging and discharging device and the pressure charging and discharging system. In this paper, specific examples are applied to explain the principle and implementation mode of the utility model. The above embodiment is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model.

Claims

1. A pressure charging and relief device characterized by, The device comprises: a pressure charging and discharging injector (1); a switching valve (2) connected with the pressure charging and discharging injector (1) and used for connecting with a balloon catheter (7), the switching valve (2) is provided with an exhaust port (21) and comprises a first position state and a second position state, when the switching valve (2) is in the first position state, the pressure charging and discharging injector (1) is in communication with the balloon catheter (7), when the switching valve (2) is in the second position state, the pressure charging and discharging injector (1) is in communication with the exhaust port (21); an automatic telescopic device (3) connected with the pressure charging and discharging injector (1) and capable of outputting telescopic movement to the pressure charging and discharging injector (1), when the automatic telescopic device (3) is extended, it drives the pressure charging and discharging injector (1) to inject working medium into the balloon catheter (7), when the automatic telescopic device (3) is retracted, it drives the pressure charging and discharging injector (1) to suck the working medium or air in the balloon catheter (7).

2. The pressure charging device according to claim 1, characterized by The automatic telescopic device (3) comprises: a pushing member (31) connected with the pressure charging and discharging injector (1); a first host (32) connected with the pushing member (31) and used for controlling the telescopic movement of the pushing member (31).

3. The pressure charging device according to claim 2, characterized by The first host (32) is provided with a sliding groove (321), and the pushing member (31) is in sliding connection with the sliding groove (321).

4. The pressure charging device according to claim 2, characterized by The first host (32) is provided with a first mounting portion (322), and the pressure charging and discharging injector (1) is mounted on the first mounting portion (322).

5. The pressure charging device according to claim 2, characterized by The first host (32) is provided with a second mounting portion (323), and the switching valve (2) is mounted on the second mounting portion (323).

6. The pressure charging device according to claim 2, characterized by The first host (32) is provided with a display interaction portion (324) used for setting pressure charging and discharging parameters by a user, and / or selecting a pressure charging and discharging working mode, and / or displaying the pressure in the balloon of the balloon catheter (7).

7. The pressure charging device according to claim 2, characterized by The first host (32) is provided with an emergency stop module used for controlling the pushing member (31) to stop working when the pressure in the balloon of the balloon catheter (7) drops suddenly.

8. A pressure charging device according to any one of claims 1 to 7, characterized in that The switching valve (2) comprises a movable switching member (22), and the pressure charging and discharging device further comprises: a switching valve control member (4) connected with the switching member (22) and used for driving the switching member (22) to act, so as to switch the switching valve (2) between the first position state and the second position state.

9. A pressure charging device according to any one of claims 1 to 7, characterized in that The switching valve (2) is provided with a pressure port (23), and a pressure detection device (5) is connected with the pressure port (23) to detect the pressure in the balloon of the balloon catheter (7).

10. A pressure charging device according to any one of claims 1 to 7, characterized in that The exhaust port (21) is provided with a one-way valve (6), and an inlet of the one-way valve (6) is in communication with the inside of the switching valve (2).

11. A charge and bleed pressure system characterized by, The device comprises a balloon catheter (7) and the pressure charging and discharging device according to any one of claims 1-10, and the balloon catheter (7) is connected with the switching valve (2) of the pressure charging and discharging device.

12. The pressure charging system according to claim 11, characterized by The device further comprises: A second host (8) is connected with the balloon catheter (7) and the automatic telescopic device (3) of the pressure charging and discharging device respectively, and is used for carrying out shock wave therapy through the balloon catheter (7) after the automatic telescopic device (3) drives the pressure charging and discharging injector (1) of the pressure charging and discharging device to complete pressure charging to the balloon catheter (7).

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