Balloon catheter blasting tester

Abstract

The utility model belongs to the field of instruments and meters, and relates to a balloon catheter blasting tester which comprises a base, a stepping motor arranged on the upper portion of the base, a guide rail arranged on one side of the stepping motor, a sliding block arranged on one side of the guide rail, a sliding seat arranged on the upper portion of the sliding block, a ball screw arranged in the middle of the sliding seat and a water storage tank arranged on one side of the sliding seat. A piston is arranged in the water storage tank, a pressure transmitter is arranged on one side of the water storage tank and connected with a first electromagnetic valve, the first electromagnetic valve is connected with a second electromagnetic valve, a sample placing room is arranged between the first electromagnetic valve and the second electromagnetic valve, the second electromagnetic valve is connected with a water pump, a motor is arranged on the upper portion of the water pump, and a water tank is arranged on the lower portion of the water pump. According to the utility model, the structure is complete, the function is complete, the accurate displacement of the stepping motor is utilized, and the accurate control on the tested flow can be realized, so that the detection accuracy is increased.

Description

Technical Field

[0001] The utility model belongs to the field of instruments and meters, and particularly relates to a balloon catheter bursting tester. Background Art

[0002] The balloon catheter bursting tester is a key device for evaluating and verifying the performance of medical balloon catheters. By simulating real usage conditions, the instrument conducts bursting pressure tests on balloon catheters to determine their maximum inflation pressure within the safe operating range. The tester usually includes a dedicated pressure control system and measuring equipment, which can accurately control and monitor the expansion performance of the catheter under different pressures. These test results can help manufacturers confirm the rationality and safety of product designs, while meeting the strict regulations and standards of the medical industry.

[0003] Judging from the long-term test results, the existing balloon catheter bursting testers generally have a relatively large settable value for the flow rate, which may lead to inaccurate test results. And during the test, manual adjustment of the flow rate is generally adopted, which will cause the flow rate to be large or small during the test, and is not conducive to the recording of results. Content of the Utility Model

[0004] The purpose of the utility model is to provide a balloon catheter bursting tester, which can ensure that during the test process, a stepping motor is used to drive the ball screw to accurately shift, reducing the test deviation caused by inaccurate flow rate adjustment. At the same time, the high-precision pressure transmitter is used to monitor the pressure change in real time, solving the problem that the prior art cannot monitor in real time.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is that the utility model provides a balloon catheter bursting tester, including a base, a stepping motor is arranged on the upper part of the base, a guide rail is arranged on one side of the stepping motor, a slider is arranged on one side of the guide rail, a sliding seat is arranged on the upper part of the slider, a ball screw is arranged in the middle of the sliding seat, a water storage tank is arranged on one side of the sliding seat, a piston is arranged inside the water storage tank, a pressure transmitter is arranged on one side of the water storage tank, the pressure transmitter is connected to a solenoid valve I, the solenoid valve I is connected to a solenoid valve II, a specimen placement chamber is arranged between the solenoid valve I and the solenoid valve II, the solenoid valve II is connected to a water pump, a motor is arranged on the upper part of the water pump, and a water tank is arranged on the lower part of the water pump.

[0006] Preferably, a sliding seat is arranged on the upper part of the slider, and the slider is connected to the sliding seat.

[0007] Preferably, a piston is arranged inside the water storage tank, and the water storage tank and the piston are of a sealed structure.

[0008] Preferably, the solenoid valve I is connected to the solenoid valve II, and the outer coatings of the solenoid valve I and the solenoid valve II are made of high-temperature resistant insulating materials.

[0009] Preferably, a sample placement chamber is provided between the first solenoid valve and the second solenoid valve.

[0010] Preferably, a motor is provided on the upper part of the water pump, and the water pump and the motor are in an up-and-down structure.

[0011] Compared with the prior art, the advantages and positive effects of the present utility model are that

[0012] The present utility model has a complete structure and perfect functions. By using the precise displacement of the stepper motor, the flow rate of the test can be accurately controlled, thereby increasing the accuracy of detection.

[0013] The present utility model can monitor the pressure change in real time through a high-precision pressure transmitter, solving the problem that the prior art cannot monitor in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

[0015] Figure 1 FIG. 1 is a schematic three-dimensional structure diagram of a balloon catheter bursting tester provided for Embodiment 1;

[0016] In the above figures, 1, base; 2, stepper motor; 3, guide rail; 4, slider; 5, sliding seat; 6, ball screw; 7, water storage tank; 8, piston; 9, pressure transmitter; 10, first solenoid valve; 11, second solenoid valve; 12, sample placement chamber; 13, water pump; 14, motor; 15, water tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to more clearly understand the above objects, features and advantages of the present utility model, the following will further illustrate the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0018] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0019] Embodiment 1, as Figure 1As shown in the figure, a balloon catheter bursting tester includes a base 1. A stepping motor 2 is provided on the upper part of the base 1. A guide rail 3 is provided on one side of the stepping motor 2. A slider 4 is provided on one side of the guide rail 3. A sliding seat 5 is provided on the upper part of the slider 4. A ball screw 6 is provided in the middle of the sliding seat 5. A water storage tank 7 is provided on one side of the sliding seat 5. A piston 8 is provided inside the water storage tank 7. A pressure transmitter 9 is provided on one side of the water storage tank 7. The pressure transmitter 9 is connected to a solenoid valve 10. The solenoid valve 10 is connected to a solenoid valve 11. A specimen placement chamber 12 is provided between the solenoid valve 10 and the solenoid valve 11. The solenoid valve 11 is connected to a water pump 13. A motor 14 is provided on the upper part of the water pump 13. A water tank 15 is provided on the lower part of the water pump 13.

[0020] A stepping motor 2 is provided on the upper part of the base 1. The stepping motor 2 is a special type of motor that operates based on an input electrical pulse signal. Each time it receives an electrical pulse, the stepping motor 2 rotates by a fixed angle, the stepping angle, which enables the stepping motor 2 to achieve very precise position control. A guide rail 3 is provided on one side of the stepping motor 2. A slider 4 is provided on one side of the guide rail 3. A sliding seat 5 is provided on the upper part of the slider 4. The slider 4 is connected to the sliding seat 5 and can slide in the guide rail 3. A ball screw 6 is provided in the middle of the slider 5. The ball screw 6 is connected to the stepping motor 2. The stepping motor 2 controls the precise displacement of the ball screw 6 through its own characteristics. A water storage tank 7 is provided on one side of the sliding seat 5. A piston 8 is provided inside the water storage tank 7. The water storage tank 7 is internally connected to the piston 8. On the guide rail 3, the movement of the ball screw 6 also drives the piston 8 to move, thereby controlling the precise release of the test water flow rate and increasing the accuracy of the test results.

[0021] A pressure transmitter 9 is provided on one side of the water storage tank 7. During the test, the pressure transmitter 9 monitors the pressure changes inside the balloon catheter in real time and transmits the data for internal analysis. A solenoid valve 10 is provided on one side of the pressure transmitter 9. The outer coating of the solenoid valve 10 is a high-temperature resistant insulating material, and its internal structure and control algorithm have been improved to enable it to respond more quickly to input signals and reduce the response time of the test system. The solenoid valve 10 is connected to a solenoid valve 11. A specimen placement chamber 12 is provided between the solenoid valve 10 and the solenoid valve 11. During the test, first place the sample to be tested in the specimen placement chamber 12, manually evacuate the air inside the specimen, and then the system starts to work. A signal is transmitted from the solenoid valve 11 to the solenoid valve 12, and then the solenoid valve transmits the signal to the water pump 13. The water pump 13 controls the motor to start and begins to draw the test water from the water tank 15 and transmit it to the water storage tank 7, thus starting the test. By changing the pressure of the pressure transmitter 9, the size of the water flow can be controlled, solving the problem of the relatively large lower limit of the settable value of the flow rate.

[0022] This device provides flow by using a stepping motor 2 in cooperation with a ball screw 6, and combines corresponding pipelines and a pressure transmitter 9, with better adjustability and higher accuracy. According to the test results, the endurance and bearing capacity of the balloon catheter can be evaluated to guide surgical operations and equipment selection.

[0023] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0024] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as they do not depart from the technical solution content of the present invention, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A balloon catheter burst tester, characterized in that: It includes a base, a stepper motor is arranged on the upper part of the base, a guide rail is arranged on one side of the stepper motor, a slider is arranged on one side of the guide rail, a slide seat is arranged on the upper part of the slider, a ball screw is arranged in the middle of the slide seat, a water storage tank is arranged on one side of the slide seat, a piston is arranged inside the water storage tank, a pressure transmitter is arranged on one side of the water storage tank, the pressure transmitter is connected to solenoid valve 1, solenoid valve 1 is connected to solenoid valve 2, a sample placement room is arranged between solenoid valve 1 and solenoid valve 2, solenoid valve 2 is connected to a water pump, an electric motor is arranged on the upper part of the water pump, and a water tank is arranged at the lower part of the water pump.

2. A balloon catheter burst tester according to claim 1, characterized in that: A sliding seat is arranged on the upper part of the sliding block, and the sliding block is connected to the sliding seat.

3. A balloon catheter burst tester according to claim 1, characterized in that: A piston is arranged inside the water storage tank, and the water storage tank and the piston are in a sealed structure.

4. A balloon catheter burst tester according to claim 1, characterized in that: The solenoid valve 1 is connected to the solenoid valve 2, and the outer coatings of the solenoid valve 1 and the solenoid valve 2 are high temperature resistant insulating materials.

5. A balloon catheter burst tester according to claim 1, characterized in that: A sample placement room is arranged between the first solenoid valve and the second solenoid valve.

6. A balloon catheter burst tester according to claim 1, characterized in that: An electric motor is arranged on the upper part of the water pump, and the water pump and the electric motor are an upper and lower structure.

Images