CN211986643U - Balloon dilatation system - Google Patents
Balloon dilatation system Download PDFInfo
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- CN211986643U CN211986643U CN201820254589.1U CN201820254589U CN211986643U CN 211986643 U CN211986643 U CN 211986643U CN 201820254589 U CN201820254589 U CN 201820254589U CN 211986643 U CN211986643 U CN 211986643U
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Abstract
The embodiment of the utility model discloses sacculus expansion system. The system comprises a signal acquisition module, a main controller, a pressurization module, a pressure relief module, a first pressure sensor, a flow sensor, a balloon catheter and a balloon. The signal acquisition module is electrically connected with the main controller and used for acquiring control signals and sending the control signals to the main controller; the main controller is electrically connected with the pressurizing module and the pressure relief module; the pressurizing module is connected with the balloon through the balloon catheter; the pressure relief module is connected with the balloon through a balloon catheter; the first pressure sensor is arranged on the balloon catheter, is electrically connected with the main controller and is used for monitoring the first liquid pressure of the balloon; the flow sensor is arranged on the balloon catheter, is electrically connected with the main controller and is used for monitoring the liquid flow of the balloon catheter; the main controller is further used for adjusting the working state of the pressurizing module and/or the pressure relief module according to the first liquid pressure and the liquid flow, and safety of the process of expanding the affected part is improved.
Description
Technical Field
The embodiment of the utility model provides a relate to medical instrument technique, especially relate to a sacculus expansion system.
Background
With the annual increase in the prevalence of cardiovascular disease, there are more and more ways to treat cardiovascular disease using balloon dilation in clinical applications. For example, in the operation of narrowing or blocking a cardiovascular vessel, a contrast medium or a saline solution is injected into the balloon by pressurizing, so that a DSA (Digital Subtraction Angiography) device can clearly monitor the operation treatment and the determination of the affected part of a patient, and the balloon used for expanding the stent for the affected part of the vessel can be pressurized or decompressed, expanded or contracted, thereby achieving the purpose of expanding the vessel or releasing the stent.
The saccule on the market at present adopts a low-precision mechanical pressure gauge, and the risk of blood vessel rupture caused by pressurization exists in clinic
SUMMERY OF THE UTILITY MODEL
The utility model provides a sacculus expansion system to realize improving the security of sacculus expansion in-process.
The embodiment of the utility model provides a sacculus expansion system, which comprises a signal acquisition module, a main controller, a pressurization module, a pressure relief module, a first pressure sensor, a flow sensor, a sacculus catheter and a sacculus; wherein the content of the first and second substances,
the signal acquisition module is electrically connected with the main controller and used for acquiring control signals and sending the control signals to the main controller;
the main controller is electrically connected with the pressurizing module and the pressure relief module and is used for receiving the control signal and controlling the working states of the pressurizing module and the pressure relief module according to the control signal;
the pressurizing module is connected with the balloon through the balloon catheter and used for injecting liquid into the balloon through the balloon catheter according to a control signal of the main controller;
the pressure relief module is connected with the balloon through the balloon catheter and used for removing liquid in the balloon catheter and the balloon according to a control signal of the main controller;
the first pressure sensor is arranged on the balloon catheter, is electrically connected with the main controller, and is used for monitoring a first liquid pressure of the balloon catheter and sending the first liquid pressure to the main controller;
the flow sensor is arranged on the balloon catheter, is electrically connected with the main controller, and is used for monitoring the liquid flow of the balloon catheter and sending the liquid flow to the main controller;
the main controller is further used for adjusting the working state of the pressurizing module and/or the pressure relief module according to the first liquid pressure and the liquid flow.
The main controller is specifically used for closing the pressurizing module and opening the pressure relief module if the first liquid pressure is greater than a first pressure value; and/or the presence of a gas in the gas,
and if the liquid capacity in the balloon is determined to be larger than the first capacity according to the liquid flow, closing the pressurizing module and opening the pressure relief module.
Optionally, a safety valve is disposed on the balloon catheter, and the safety valve is closed when the first liquid pressure is greater than or equal to the second pressure value or the liquid volume in the balloon is determined to be greater than the second volume according to the liquid flow, so as to stop the liquid from being injected into the balloon.
Optionally, the first pressure sensor is further configured to monitor a balloon wall pressure value in a pressurization or pressure relief process, and send the balloon wall pressure value to the main controller;
the main controller is also used for identifying the moment when the balloon wall pressure value is equal to zero, sequencing the liquid pressures corresponding to all the moments, determining the liquid pressure at the head of the sequencing as the systolic blood pressure, and determining the liquid pressure at the end of the sequencing as the diastolic blood pressure;
wherein the balloon is disposed inside a blood vessel.
Optionally, the main controller is further specifically configured to determine a current balloon diameter according to the liquid capacity of the balloon and balloon parameters during a pressurization process or a pressure relief process, and determine a sum of the balloon diameter and the balloon thickness as a blood vessel diameter.
Optionally, the main controller is further configured to determine a blood vessel expansion coefficient according to the liquid capacity of the balloon and the first liquid pressure during a pressurization process or a pressure relief process, and determine blood vessel elasticity according to the blood vessel expansion coefficient.
Optionally, the main controller is further configured to determine a pressurization resistance according to the first liquid pressure and a liquid flow rate during the pressurization process, wherein the liquid flow rate is determined according to the liquid flow rate.
Optionally, the system further comprises a second pressure sensor electrically connected to the liquid storage device and the main controller for detecting a second liquid pressure of the liquid storage device.
Optionally, the system further includes a display electrically connected to the main controller for displaying the expansion parameters during the pressurization process and the pressure relief process, wherein the expansion parameters at least include the first fluid pressure and the fluid flow rate.
Optionally, the signal acquisition module includes a foot controller, and is electrically connected to the main controller, and is configured to acquire a foot control signal and send the control signal to the main controller.
Optionally, the signal acquisition module includes an information input submodule, connected to the main controller, and configured to determine a control signal by inputting an instruction from the outside, and send the control signal to the main controller.
The embodiment of the utility model provides a through setting up first pressure sensor and flow sensor, real-time supervision pours into the liquid pressure and the liquid capacity of sacculus into to when detecting that liquid pressure and liquid capacity exist unusually by main control unit, adjust the operating condition of pressurization module and/or pressure release module, with adjust first liquid pressure or liquid capacity to normal scope, improved the security that expands the process to the affected part.
Drawings
Fig. 1 is a schematic structural diagram of a balloon dilatation system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a balloon dilatation system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a balloon dilatation system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is the structural schematic diagram of a balloon dilatation system provided by the embodiment of the present invention, the present embodiment can be applied to the balloon dilatation operation for treating cardiovascular diseases, especially, by injecting liquid into the balloon under pressurization to realize the dilatation of the balloon. The balloon dilation system specifically includes a signal acquisition module 180, a main controller 110, a pressurization module 120, a pressure relief module 130, a first pressure sensor 140, a flow sensor 150, a balloon catheter 160, and a balloon 170.
The signal acquisition module 180 is electrically connected with the main controller 110, and is configured to acquire a control signal and send the control signal to the main controller 110;
the main controller 110 is electrically connected to the pressurization module 120 and the pressure relief module 130, and is configured to receive the control signal and control the working states of the pressurization module 120 and the pressure relief module 130 according to the control signal;
a pressurizing module 120 connected with the balloon 170 through the balloon catheter 160, for injecting liquid into the balloon 170 through the balloon catheter 160 according to a control signal of the main controller 110;
the pressure relief module 130 is connected with the balloon through the balloon catheter 160 and is used for removing liquid in the balloon catheter 160 and the balloon 170 according to a control signal of the main controller;
a first pressure sensor 140 disposed on the balloon catheter 160, electrically connected to the main controller 110, for monitoring a first fluid pressure of the balloon 170 and transmitting the first fluid pressure to the main controller 110;
a flow sensor 150 disposed on the balloon catheter 160, electrically connected to the main controller 110, for monitoring a liquid flow rate of the balloon catheter 160 and transmitting the liquid flow rate to the main controller 110;
the main controller 110 is further configured to adjust an operating state of the pressurization module 120 and/or the pressure relief module 130 according to the first fluid pressure and the fluid flow rate.
In this embodiment, the signal acquisition module 180 may acquire a control signal, where the control signal may be determined by an external input command or may be determined by sensing a pressure applied to the signal acquisition module by a user. The signal acquisition module 180 sends the acquired control signal to the main controller 110, and the main controller 110 controls the working states of the pressurization module 120 and the pressure relief module 130 according to the control signal, wherein the working state of the pressurization module 120 includes a closed state and starting states of different pressurization parameters, and the working state of the pressure relief module 130 includes a closed state and starting states of different pressure relief parameters. When the pressurizing module 120 is in the activated state, liquid is injected into the balloon 170 through the balloon catheter 160; when the pressure relief module 130 is activated, the balloon catheter 160 and the balloon 170 are drained of liquid. Wherein the fluid may be a contrast agent or saline.
In this embodiment, pressure is generated in the balloon catheter as the liquid is injected. When the balloon dilation system is applied to a lesion, which may be, for example, a blood vessel, excessive fluid pressure in the balloon tends to cause the vessel to rupture. The first pressure sensor 140 is electrically connected to the balloon catheter 160, and acquires a first fluid pressure of the balloon in real time and transmits the first fluid pressure to the main controller 110. The balloon catheter 160 is in communication with the balloon 170, that is, the balloon catheter 160 and the balloon 170 have the same liquid pressure, and the first liquid pressure of the balloon 170 can be obtained through the first pressure sensor 140 connected to the balloon catheter 160.
The flow sensor 150 is disposed in series on the balloon catheter 160, and can monitor the liquid flow in the balloon catheter 160, wherein the liquid flow is the liquid volume passing through the balloon catheter 160 for a preset time, and the preset time can be 1s, for example. The volume of liquid injected into the balloon 170 may be determined based on the flow rate and timing of the liquid in the balloon catheter 160 and sent to the main controller 110. The main controller 110 monitors the first fluid pressure and the fluid volume, and adjusts an operating state of at least one of the pressurizing module 120 and the pressure-releasing module 130 to adjust the first fluid pressure or the fluid volume to a safe range when one of the first fluid pressure or the fluid volume exceeds the safe range.
In this embodiment, through setting up first pressure sensor and flow sensor, real-time supervision pours into the liquid pressure and the liquid capacity of sacculus into to when detecting that liquid pressure and liquid capacity exceed the safety range by main control unit, adjust the operating condition of pressurization module and/or pressure release module, with first liquid pressure or liquid capacity to the safety range of adjusting, improved the security that carries out the expansion process to the affected part.
Optionally, the main controller 110 is specifically configured to close the pressurization module 120 and open the pressure relief module 130 if the first liquid pressure is greater than the first pressure value.
The first pressure value is a safe pressure value of a current position of the balloon, and may be determined according to the current position of the balloon, when the main controller recognizes that the first liquid pressure is greater than the first pressure value, the pressurization module 120 is closed, the injection of liquid into the balloon 170 is stopped, the pressure relief module 130 is opened, the liquid in the balloon catheter 160 and the balloon 170 is discharged, the first liquid pressure is reduced, and the affected part rupture caused by the overlarge first liquid pressure is avoided.
Optionally, if it is determined that the volume of the liquid in the balloon 170 is greater than the first volume according to the liquid flow rate, the pressurizing module 120 is turned off, and the pressure-releasing module 130 is turned on.
When the liquid capacity is larger than the first capacity, the pressurizing module 120 is closed, the liquid injection into the balloon 170 is stopped, the pressure relief module 130 is opened, the liquid in the balloon catheter 160 and the balloon 170 is discharged, the liquid capacity in the balloon 170 is reduced, and affected part rupture caused by overlarge liquid capacity is avoided.
Optionally, a safety valve is disposed on the balloon catheter 160, and the safety valve is closed when the first liquid pressure is greater than or equal to the second pressure value or the liquid volume in the balloon is greater than the second volume according to the liquid flow rate, so as to stop the liquid from being injected into the balloon.
The second pressure value is a safe pressure value of the current position of the balloon, and may be the same as the first pressure value. The second volume is a safe volume of a current position of the balloon, and optionally, the second volume may be determined according to a safe expansion diameter of the current position of the balloon, where the safe expansion diameter is a maximum diameter reached by the current position of the balloon within a safe range, the maximum diameter of the balloon is determined according to a difference between the safe expansion diameter and a wall thickness of the balloon, the balloon may be regarded as a regular cylindrical structure, and the second volume may be determined according to a volume calculation formula further according to a balloon height.
When the first liquid pressure is larger than or equal to the second pressure value or the liquid volume in the balloon is larger than the second volume according to the liquid flow, the safety valve is closed when the safety range is exceeded, the liquid injection into the balloon is stopped, and the safety in the balloon expansion process is improved. Optionally, when the safety valve is closed, the pressure relief module 130 is activated to discharge the liquid in the balloon catheter 160 and the balloon 170, and the pressure of the liquid in the balloon catheter 160 is reduced to make the pressure in the safe range.
Optionally, the first pressure sensor 140 is further configured to monitor a balloon wall pressure value during the pressurization or depressurization process, and send the balloon wall pressure value to the main controller 110;
the main controller 110 is further configured to identify a time when the balloon wall pressure value is equal to zero, sort the liquid pressures corresponding to the times, determine the liquid pressure at the head of the sorting as a systolic blood pressure, and determine the liquid pressure at the end of the sorting as a diastolic blood pressure, where the balloon is disposed inside a blood vessel.
In this embodiment, the pressurizing process refers to a process in which the pressurizing module 120 injects liquid into the balloon under the control of the main controller 110 to increase the pressure of the liquid in the balloon 170; the pressure relief process refers to a process in which the pressure relief module 130 discharges the liquid in the balloon 170 under the control of the main controller 110 to reduce the pressure of the liquid in the balloon 170.
According to the principle of interaction force, when two acting forces with opposite directions and the same magnitude are applied to two sides of the balloon wall, the total acting force applied to the balloon wall is zero. Therefore, when the total acting force on the balloon wall is zero, the internal liquid pressure is the same as the blood pressure. When the blood pressure is subjected to vasodilation pressure and systolic pressure due to the beating of the heart, the vasodilation pressure is the minimum value of the human blood pressure, and the systolic pressure is the maximum value of the human blood pressure. In the pressurizing or pressure releasing process, the moment when the pressure of the blood vessel wall is zero and the liquid pressure corresponding to each moment are monitored, the plurality of liquid pressures are sequenced from large to small or from small to large, the minimum liquid pressure is really the vasodilation pressure, and the maximum liquid pressure is really the vasoconstriction pressure.
In this embodiment, when carrying out the dilatation operation to blood vessel, at pressurization process or pressure release in-process, all can acquire the blood pressure of affected part simultaneously, need not other blood pressure measuring equipment, convenient and fast has improved vascular operation's efficiency.
Optionally, the main controller 110 is further specifically configured to determine a current balloon diameter according to the liquid volume and the balloon parameter, and determine a sum of the balloon diameter and the balloon thickness as the diameter of the target to be dilated.
The balloon parameters are morphological parameters of the balloon, optionally, the balloon is of a cylindrical structure, and the balloon parameters comprise the height of the balloon and the thickness of the balloon. The main controller 110 can determine the balloon diameter R from the liquid volume of the balloon at the critical time and the balloon height, and thus can determine that the target expansion diameter is R + h. The expansion object may be a blood vessel, for example.
It should be noted that the method for determining the diameter of the blood vessel described above is applicable to the case where the balloon is in contact with the object to be dilated.
Optionally, the liquid is physiological saline. The diameter of the object to be dilated at different times can be determined from the volume of liquid injected into the balloon without the need to determine the diameter of the object to be dilated by imaging the injected contrast agent. The damage of radiography to the human body is reduced, the cost and time consumption caused by frequent radiography are reduced, and the safety and the efficiency are improved.
Optionally, the main controller 110 is further configured to determine a blood vessel expansion coefficient according to the fluid capacity of the balloon and the first fluid pressure during the pressurization process or the depressurization process, and determine the elasticity of the blood vessel according to the blood vessel expansion coefficient.
Wherein the expansion coefficient K is V/P, wherein the unit of the expansion coefficient K is ml/cm water column, V is liquid capacity, and P is first liquid pressure; the vessel elasticity can be determined from the expansion coefficient, wherein the greater the expansion coefficient for the same fluid volume, the better the vessel elasticity, and correspondingly, the smaller the expansion coefficient, the worse the vessel elasticity. In this embodiment, the system allows for the simultaneous assessment of vessel elasticity during the vasodilation process.
Optionally, the main controller 110 is further configured to determine a pressurization resistance based on the first fluid pressure and a fluid flow rate during the pressurization process, wherein the fluid flow rate is determined based on the fluid flow rate.
Wherein, the pressurizing resistance F is P/Q, P is the first liquid pressure, and Q is the liquid flow rate. The main controller monitors the pressurizing resistance in the balloon catheter and the balloon, when the pressurizing resistance is larger than the safety resistance, the problem of blood vessel breakage caused by overlarge resistance exists, and the main controller adjusts the flow rate of the liquid according to the pressurizing resistance so that the pressurizing resistance is in a safety range, and the safety in the pressurizing process is improved.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a balloon dilatation system according to an embodiment of the present invention. In one embodiment, the system further comprises a second pressure sensor 210 electrically connected to the fluid reservoir and the main controller 110 for detecting a second fluid pressure of the fluid reservoir. The liquid storage device is a device for storing the raw liquid, and is connected to the pressurizing module 120 for providing the pressurizing module 120 with a liquid supply. The second pressure sensor 210 recognizes a remaining amount of liquid of the liquid storage device by detecting a second liquid pressure of the liquid storage device. Optionally, the liquid storage device is deformable, the second liquid pressure is zero when the liquid storage device is full of liquid, and the second liquid pressure is reduced when liquid is pumped out.
In this embodiment, the second pressure sensor 210 sends the second liquid pressure to the main controller 110, so that the main controller 110 monitors the remaining amount of the liquid in the liquid storage device according to the second liquid pressure, and timely reminds according to the remaining amount of the liquid, thereby avoiding problems such as surgical interruption caused when the remaining amount of the liquid in the liquid storage device is zero.
Optionally, the system further comprises a display 220 electrically connected to the main controller 110 for displaying the expansion parameters during the pressurizing process and the depressurizing process, wherein the expansion parameters at least comprise the first fluid pressure and the fluid flow rate.
In this embodiment, the display 220 is configured to display the dilation parameters obtained by the main controller 110, and form a display curve according to different dilation parameters, where the dilation parameters include, but are not limited to, a liquid flow rate, a liquid pressure, a blood vessel pressure, a diameter of a dilation object, and a volume; the display curves include, but are not limited to, a liquid flow-pressure curve, a liquid flow-time curve, a liquid pressure-time curve, a liquid volume-pressure curve, and a liquid volume-time curve. Through the display screen 220, medical personnel can intuitively and clearly acquire the parameter change in the balloon expansion process, and the success rate of the operation is convenient to improve.
Optionally, the signal acquisition module 180 includes a foot controller 181 electrically connected to the main controller 110, and configured to acquire a foot control signal and send the control signal to the main controller 110.
In this embodiment, the control signal acquisition module 180 can automatically acquire the control signal without requiring the medical staff to continuously and manually operate the balloon. The control signal collected by the foot controller 181 can be adjusted according to the degree of foot stepping pressure, or can be adjusted according to the purpose of pressurizing or depressurizing the balloon. Optionally, the foot controller 181 includes a pressure sensor, a first key unit and a first processor, the pressure sensor is electrically connected to the first processor, and is configured to collect a pressure signal of the foot in real time and send the pressure signal to the first processor in real time; the first key unit is electrically connected with the first processor and used for sending key information of a pressed key to the first processor; and the first processor is electrically connected with the pressure sensor, the first key unit and the main controller, and is used for generating a corresponding control signal according to the received pressure signal and the key information and sending the control signal to the main controller. The first key unit comprises a first pressurizing key and a first pressure releasing key which are respectively used for generating pressurizing key information and pressure releasing key information.
In this embodiment, the pressure signal of foot can be changed in real time by adjusting the degree of foot pressure according to actual demand, and optionally, the pressure signal is directly proportional to the degree of foot pressure. The pressed key in the first key unit is selected according to the operation purpose of pressurizing or decompressing the balloon, and then corresponding key information is generated according to the pressed key and sent to the first processor so as to determine a control signal. Through foot controller's setting, the control signal who applys automatic acquisition by the foot action sends to pressurization module or pressure release module, need not to pressurize or the pressure release to the sacculus through both hands to liberation both hands, simplified the operation, also saved manpower and physical power.
Optionally, the signal acquisition module 180 includes an information input sub-module 182, connected to the main controller 110, for determining a control signal according to an external input command, and sending the control signal to the main controller 110.
The information input sub-module 182 includes a touch display screen and a second processor; the touch display screen is used for acquiring and displaying an externally input touch instruction; and the second processor is electrically connected with the touch display screen and the main controller 110, and is configured to generate a control signal according to a touch instruction input from the outside and send the control signal to the main controller. The touch instruction input externally can be a pressure change rate and an operation identifier input by a user on the touch display screen according to actual requirements. Wherein, the operation mark can be a pressurization mark and a pressure relief mark.
The information input sub-module 182 may further include a pressure adjustment button, a second pressure increasing button and a second pressure decreasing button, i.e. the external input command may be further input by a button method. Correspondingly, the second processor is configured to generate a control signal according to key information corresponding to the pressure adjustment key, the second pressurization key, and the second pressure release key, and send the control signal to the main controller 110.
And determining a control signal according to an external input instruction, and controlling the working states of the pressurizing module and the pressure relief module by the main controller according to the control signal, so that liquid is injected into the balloon or discharged from the balloon through the balloon catheter. Through the setting of the information input submodule, the operation can be carried out by only one hand, so that the operation is more convenient and faster, and the labor and the physical strength are also saved.
In one embodiment, the control signal acquisition module may include both the information input sub-module and the foot controller, and the information input sub-module and the foot controller may be switched according to clinical requirements. Illustratively, referring to fig. 3, fig. 3 is a schematic structural diagram of a balloon dilatation system according to an embodiment of the present invention, which includes an information input sub-module 182 and a foot controller 181. Fig. 3 is only one implementation, and in other embodiments, only one of the information input sub-module 182 and the foot controller 181 may be included.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (11)
1. A balloon dilatation system is characterized by comprising a signal acquisition module, a main controller, a pressurization module, a pressure relief module, a first pressure sensor, a flow sensor, a balloon catheter and a balloon; wherein the content of the first and second substances,
the signal acquisition module is electrically connected with the main controller and used for acquiring control signals and sending the control signals to the main controller;
the main controller is electrically connected with the pressurizing module and the pressure relief module and is used for receiving the control signal and controlling the working states of the pressurizing module and the pressure relief module according to the control signal;
the pressurizing module is connected with the balloon through the balloon catheter and used for injecting liquid into the balloon through the balloon catheter according to a control signal of the main controller;
the pressure relief module is connected with the balloon through the balloon catheter and used for removing liquid in the balloon catheter and the balloon according to a control signal of the main controller;
the first pressure sensor is arranged on the balloon catheter, is electrically connected with the main controller, and is used for monitoring a first liquid pressure of the balloon and sending the first liquid pressure to the main controller;
the flow sensor is arranged on the balloon catheter, is electrically connected with the main controller, and is used for monitoring the liquid flow of the balloon catheter and sending the liquid flow to the main controller;
the main controller is further used for adjusting the working state of the pressurizing module and/or the pressure relief module according to the first liquid pressure and the liquid flow.
2. The system of claim 1, wherein the main controller is specifically configured to close the pressurization module and open the pressure relief module if the first fluid pressure is greater than a first pressure value; and/or the presence of a gas in the gas,
and if the liquid capacity in the balloon is determined to be larger than the first capacity according to the liquid flow, closing the pressurizing module and opening the pressure relief module.
3. The system of claim 1, wherein a safety valve is disposed on the balloon catheter, and wherein the safety valve is closed to stop the injection of fluid into the balloon when the first fluid pressure is greater than or equal to a second pressure value or when the fluid flow rate determines that the volume of fluid in the balloon is greater than a second volume.
4. The system of claim 1, wherein the first pressure sensor is further configured to monitor a balloon wall pressure value during pressurization or depressurization, and to send the balloon wall pressure value to a master controller;
the main controller is also used for identifying the moment when the balloon wall pressure value is equal to zero, sequencing the liquid pressures corresponding to all the moments, determining the liquid pressure at the head of the sequencing as the systolic blood pressure, and determining the liquid pressure at the end of the sequencing as the diastolic blood pressure;
wherein the balloon is disposed inside a blood vessel.
5. The system of claim 1, wherein the main controller is further configured to determine a current balloon diameter based on the fluid capacity of the balloon and balloon parameters during the pressurizing or depressurizing process, and determine a sum of the balloon diameter and the balloon thickness as the vessel diameter.
6. The system of claim 1, wherein the master controller is further configured to determine a vessel inflation factor based on the fluid volume of the balloon and the first fluid pressure, and to determine a vessel elasticity based on the vessel inflation factor during the pressurization or depressurization.
7. The system of claim 1, wherein the master controller is further configured to determine a pressurization resistance based on the first fluid pressure and a fluid flow rate during the pressurization process, wherein the fluid flow rate is determined based on the fluid flow rate.
8. The system of claim 1, further comprising a second pressure sensor electrically connected to the fluid reservoir and the main controller for detecting a second fluid pressure of the fluid reservoir.
9. The system of any one of claims 1-8, further comprising a display electrically connected to said main controller for displaying the dilation parameter during the pressurizing and depressurizing process, wherein the dilation parameter comprises at least said first fluid pressure and said fluid flow rate.
10. The system according to any one of claims 1-8, wherein the signal acquisition module comprises a foot controller electrically connected to the main controller for acquiring foot control signals and transmitting the control signals to the main controller.
11. The system according to any one of claims 1-8, wherein the signal acquisition module comprises an information input submodule, connected to the main controller, for externally inputting commands to determine control signals and sending the control signals to the main controller.
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| CN201820254589.1U CN211986643U (en) | 2018-02-12 | 2018-02-12 | Balloon dilatation system |
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| CN201820254589.1U CN211986643U (en) | 2018-02-12 | 2018-02-12 | Balloon dilatation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310597A (en) * | 2018-02-12 | 2018-07-24 | 深圳世格赛思医疗科技有限公司 | A kind of balloon expandable system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310597A (en) * | 2018-02-12 | 2018-07-24 | 深圳世格赛思医疗科技有限公司 | A kind of balloon expandable system |
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