Electric adjustable balloon dilatation catheter

Abstract

The invention relates to an electric adjustable balloon dilatation catheter which comprises a shell part, a liquid storage device, a miniature vacuum liquid pump, a pressure maintaining device, a balloon connector and an adjustable balloon, the liquid storage device is fixedly installed at the tail end of the shell part, liquid is stored in the liquid storage device, the miniature vacuum liquid pump is installed in the shell part, and the pressure maintaining device is arranged in the shell part. One end of the miniature vacuum liquid pump is communicated with the liquid storage device, and the other end of the miniature vacuum liquid pump is communicated with the adjustable balloon through the balloon joint, so that the adjustable balloon is contracted or expanded to deform by extracting or injecting liquid through the miniature vacuum liquid pump. The electric adjustable balloon dilatation catheter is flexible and easy to operate, the narrow section can be freely adjusted and dilated according to the narrow section of the ureter, the ureter of a patient can be prevented from being damaged, in addition, the electric adjustable balloon dilatation catheter can be adjusted and suitable for various ureters with complicated narrow sections, and balloon catheters of various specifications do not need to be repeatedly replaced.

Description

Technical Field

[0001] The present application relates to the technical field of ureteral dilation tools, and in particular to an electrically adjustable balloon dilation catheter. Background Art

[0002] Ureteral balloon dilatation is a common intracavitary treatment for ureteral stenosis or ureteral obstruction. During the operation, a ureteral dilatation balloon catheter is usually used. Water or gas is injected through the high-pressure balloon catheter to expand the balloon part of the catheter, thereby achieving the purpose of dilating the stricture part.

[0003] Although the above-mentioned ureteral balloon dilatation using a ureteral dilatation balloon catheter is an effective method for treating ureteral stenosis, it also has the following defects and potential risks: 1. There may be some potential risks during the use of the ureteral dilatation balloon catheter, such as catheter displacement, perforation or damage to the urethra; 2. When using the ureteral dilatation balloon catheter, if the surgical operation is improper, it may cause ureteral tearing, causing unnecessary pain and risks to the patient; 3. The use of the ureteral dilatation balloon catheter has a better treatment effect for patients with shorter ureteral stenosis and simpler stenosis; while for patients with longer and more complex ureteral stenosis, the treatment effect is not good. Summary of the invention

[0004] In order to improve the problems raised in the above background technology, the present application provides an electrically adjustable balloon dilatation catheter.

[0005] The electrically adjustable balloon dilatation catheter provided in this application adopts the following technical solution: An electric adjustable balloon dilatation catheter comprises an outer shell portion, a liquid storage device, a micro vacuum liquid pump, a pressure maintaining device, a balloon joint and an adjustable balloon. The liquid storage device is fixedly mounted at the end of the outer shell portion, and liquid is stored in the liquid storage device. The micro vacuum liquid pump is mounted in the outer shell portion, and one end of the micro vacuum liquid pump is connected to the liquid storage device, and the other end of the micro vacuum liquid pump is connected to the adjustable balloon through the balloon joint, so that the adjustable balloon contracts or expands and deforms by extracting or injecting liquid by the micro vacuum liquid pump. The pressure maintaining device is mounted at the front end of the outer shell portion, and the balloon joint passes through the pressure maintaining device. A knob for adjusting the on-off state of the balloon joint is provided on the pressure maintaining device. After the adjustable balloon is expanded and deformed by liquid injection, the adjustable balloon can be pressure maintained by operating the pressure maintaining device.

[0006] Furthermore, a battery holder is fixedly mounted on the lower end of the shell portion, and a control circuit board and a battery are mounted in the battery holder, and the battery is used to supply power to the micro vacuum liquid pump and the control circuit board.

[0007] Furthermore, a mode adjustment button is provided on the shell part, and the mode adjustment button is provided with two button positions electrically connected to the control circuit board, the control circuit board is electrically connected to the micro vacuum liquid pump, and the control circuit board controls the micro vacuum liquid pump to extract liquid from the liquid storage device or discharge liquid into the balloon joint according to the trigger signals of the two button positions in the mode adjustment button; a pressure adjustment button is also provided on the shell part, and a pressure sensor for detecting the adjustable balloon pressure is also installed in the shell part, and the pressure sensor is also electrically connected to the control circuit board, and the pressure adjustment button is provided with three button positions electrically connected to the control circuit board, and the control circuit board The board adjusts the preset pressure upwards, adjusts the preset pressure downwards and selects manual pressure adjustment according to the triggering of the three button positions in the pressure adjustment button; a status display screen is also provided on the outer shell part, and the status display screen is electrically connected to the control circuit board, and the control circuit board is used to output the actual pressure value of the adjustable balloon detected by the display pressure sensor and the preset pressure value; a firing device is also installed under the outer shell part, and a firing switch electrically connected to the control circuit board is provided in the firing device, and the control circuit board controls the working state of the micro vacuum liquid pump according to the trigger signals of the firing switch, the mode adjustment button, the pressure adjustment button and the feedback signal of the pressure sensor.

[0008] Furthermore, a swivel joint rotatably connected to the front end of the pressure maintaining device is installed, and the balloon joint passes through the swivel joint and is fixedly connected to the swivel joint. The position state of the balloon joint and the adjustable balloon can be adjusted by the rotation of the swivel joint.

[0009] Furthermore, a developing mark is provided at the connection position between the adjustable balloon and the balloon joint, and the developing mark is made of a platinum-iridium alloy material.

[0010] Furthermore, the adjustable balloon is configured as a silicone balloon, and the outer surface of the adjustable balloon is provided with a hydrophilic coating.

[0011] Furthermore, the shell portion includes a first shell portion and a second shell portion, the first shell portion and the second shell portion are snap-fitted and fixed to each other, and an inner cavity for accommodating and installing a micro vacuum liquid pump and a pressure sensor is formed between the first shell portion and the second shell portion.

[0012] The beneficial technical effects of this application are: 1. The electrically adjustable balloon dilatation catheter provided by the present invention is flexible and easy to operate, and can freely adjust the dilatation of the narrow section of the ureter according to the narrow section of the ureter, thereby avoiding damage to the patient's ureter; 2. The electric adjustable balloon dilatation catheter provided by the present invention is easy to operate, and the balloon is made of silicone material, which has good biocompatibility, flexibility and pressure resistance; 3. The electrically adjustable balloon dilatation catheter provided by the present invention can adjust and adapt to various ureteral stenosis sections with complex and diverse shapes, and there is no need to repeatedly replace balloon catheters of various specifications; 4. The electrically adjustable balloon dilatation catheter provided by the present invention can be applied to ureteral assisted lithotripsy and assist in blocking the gravel produced during the lithotripsy to prevent the stone particles from transferring deep into the ureter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the electrically adjustable balloon dilatation catheter according to an embodiment of the present application; Figure 2 yes Figure 1 Schematic diagram of the structure of the electrically adjustable balloon dilatation catheter after being cut open; Figure 3 is a schematic diagram of an electrically adjustable balloon dilatation catheter according to an embodiment of the present application when applied to a ureteral stenosis segment; Figure 4 is a schematic diagram of an electrically adjustable balloon dilatation catheter according to an embodiment of the present application when applied to a tortuous section of the ureter; Figure 5 is a schematic diagram of an electrically adjustable balloon dilatation catheter according to an embodiment of the present application when used in ureteral assisted stone removal; Figure 6 yes Figure 1 Schematic diagram of the structure of the electric adjustable balloon dilatation catheter after partial enlargement.

[0014] Figure numerals: 1. liquid storage device; 2. rubber plug; 3. battery holder; 4. control circuit board; 5. battery; 6. firing device; 7. firing switch; 8. rotating joint; 9. first outer shell; 10. pressure maintaining device; 11. balloon joint; 12. mode adjustment button; 13. pressure adjustment button; 14. status display screen; 15. second outer shell; 16. developing mark; 17. micro vacuum liquid pump; 18. adjustable balloon. DETAILED DESCRIPTION

[0015] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0016] The present application embodiment discloses an electrically adjustable balloon dilatation catheter. Figure 1 , Figure 2 and Figure 6 The electric adjustable balloon dilatation catheter may include a liquid storage device 1, a rubber stopper 2, a battery holder 3, a control circuit board 4, a battery 5, a firing device 6, a firing switch 7, a rotating joint 8, a pressure maintaining device 10, a balloon joint 11, a mode adjustment button 12, a pressure adjustment button 13, a status display screen 14, a development mark 16, a micro vacuum liquid pump 17, an adjustable balloon 18 and a shell part consisting of a first shell part 9 and a second shell part 15.

[0017] In this embodiment, the first shell part 9 and the second shell part 15 are buckled and clamped to form the shell part of the electrically adjustable balloon dilatation catheter. An inner cavity is formed between the first shell part 9 and the second shell part 15 to accommodate and install a micro vacuum liquid pump 17 and a pressure sensor.

[0018] In this embodiment, the liquid storage device 1 is fixedly mounted at the end of the housing portion, and liquid is stored in the liquid storage device 1. The liquid storage device 1 can be replaced by sterile water, sterile physiological saline or other liquid components commonly used in balloon dilatation catheters.

[0019] In this embodiment, the micro vacuum liquid pump 17 installed in the housing portion can be connected to the liquid storage device 1 at one end, and the other end can be connected to the adjustable balloon 18 through the balloon joint 11. When the micro vacuum liquid pump 17 is activated, the adjustable balloon 18 can be deformed by contraction or expansion by adjusting its working state when liquid is extracted or injected through the micro vacuum liquid pump 17. In addition, a rubber stopper 2 can be set at the connection between the micro vacuum liquid pump 17 and the liquid storage device 1 to prevent leakage of liquid in the liquid storage device 1.

[0020] In this embodiment, the pressure-maintaining device 10 is installed at the front end of the shell part, and the balloon joint 11 passes through the pressure-maintaining device 10. The pressure-maintaining device 10 is provided with a knob for adjusting the on-off state of the balloon joint 11. A mechanical iris structure controlled by the knob can be installed inside the pressure-maintaining device 10 to change the on-off state of the balloon joint 11. The mechanical iris structure can also be replaced by other structures in the prior art that can adjust the on-off state of the balloon joint 11. After the adjustable balloon 18 is filled with liquid and expanded and deformed, the balloon joint 11 can be blocked by operating the pressure-maintaining device 10, so that the liquid in the adjustable balloon 18 cannot continue to be input or output, so that the adjustable balloon 18 is in a pressure-maintaining state.

[0021] In this embodiment, the front end of the pressure maintaining device 10 is installed with a rotating joint 8 rotatably connected thereto, and the balloon joint 11 passes through the rotating joint 8 and is fixedly connected thereto. The position state of the balloon joint 11 and the adjustable balloon 18 can be adjusted through the rotation of the rotating joint 8.

[0022] In this embodiment, a developing mark 16 made of a platinum-iridium alloy is also provided at the connection position between the adjustable balloon 18 and the balloon joint 11, so that the position can be penetrated by an endoscope or an X-ray fluorescent screen. When there is a deviation in the position, the adjustable balloon 18 and the balloon joint 11 can be driven to adjust the position by rotating the rotating joint 8. In addition, the adjustable balloon 18 can be made of a silicone material to form a balloon shape, and the outer surface of the adjustable balloon 18 is pre-set with a hydrophilic coating, so that it is easier to move smoothly in the ureter after being wetted.

[0023] In this embodiment, the battery holder 3 is fixedly mounted at the lower end of the outer shell portion, and a control circuit board 4 and a battery 5 are installed in the battery holder 3. The battery 5 is used to power the micro vacuum liquid pump 17 and the control circuit board 4, so that the entire device does not require an external power supply when in use, making it easier to use and operate.

[0024] In this embodiment, the mode adjustment button 12, the pressure adjustment button 13 and the status display screen 14 are all installed on the side of the shell part; in addition, the firing device 6 is installed below the shell part. The mode adjustment button 12, the pressure adjustment button 13 and the firing device 6 are used by the user to operate the electrically adjustable balloon dilatation catheter, and the status display screen 14 is used to display the working pressure state of the electrically adjustable balloon dilatation catheter. A pressure sensor for detecting the pressure of the adjustable balloon 18 is installed in the shell part. The pressure sensor can detect the actual pressure value of the adjustable balloon 18, and utilize the electrical connection between the pressure sensor and the control circuit board 4 to feed back the detected actual pressure value to the control circuit board 4. The mode adjustment button 12 is provided with two button positions electrically connected to the control circuit board 4, which are a filling button and a suction button respectively. The control circuit board 4 can control the micro vacuum liquid pump 17 to extract liquid from the liquid storage device 1 or discharge liquid into the balloon joint 11 according to the trigger signals of the two button positions in the mode adjustment button 12 and the electrical connection between the control circuit board 4 and the micro vacuum liquid pump 17, so that the control circuit board 4 can control the micro vacuum liquid pump 17 to extract liquid from the liquid storage device 1 or discharge liquid into the balloon joint 11, and make the adjustable balloon 18 be filled or sucked and shrunk. The pressure adjustment button 13 is provided with three button positions electrically connected to the control circuit board 4, and they are respectively an upward adjustment preset pressure button, a downward adjustment preset pressure button and a manual pressure adjustment button. The control circuit board 4 can adjust the preset pressure upward, adjust the preset pressure downward or adjust it to the manual pressure adjustment mode according to the triggering of the three button positions in the pressure adjustment button 13. The firing device 6 is provided with a firing switch 7 electrically connected to the control circuit board 4. When the manual pressure adjustment button selected in the pressure adjustment button 13 is not triggered, and after the preset pressure is adjusted, a single triggering of the firing switch 7 can enable the micro vacuum liquid pump 17 to suction or fill the adjustable balloon 18 according to the mode set by the mode adjustment button 12, and stop after the actual pressure reaches the preset pressure; when the manual pressure adjustment button selected in the pressure adjustment button 13 is triggered, the firing switch 7 needs to be continuously triggered, so that the micro vacuum liquid pump 17 suctions or fills the adjustable balloon 18 according to the mode set by the mode adjustment button 12, and stops triggering the firing switch 7 to stop the operation after the actual pressure reaches the required pressure, so that the control circuit board 4 can control the working state of the micro vacuum liquid pump 17 according to the trigger signals of the firing switch 7, the mode adjustment button 12, the pressure adjustment button 13 and the feedback signal of the pressure sensor.

[0025] In this embodiment, the status display screen 14 is electrically connected to the control circuit board 4, and in the above working process, the control circuit board 4 is used to output the actual pressure value of the adjustable balloon 18 detected by the pressure sensor and the preset pressure value.

[0026] In actual application, please refer to Figures 3 to 5In the actual use of the electric adjustable balloon dilatation catheter, the connection area of ​​the balloon joint 11 and the adjustable balloon 18 is first immersed in physiological saline for about 5 to 10 seconds to fully moisten the hydrophilic coating of the adjustable balloon 18. After entering through the working channel of the endoscope, the adjustable balloon 18 is observed by the developing mark 16 to see whether it reaches the narrow section, twisted section or stone section of the ureter. If there is a deviation, it can be adjusted to a suitable position by adjusting the rotating joint 8; then it can be divided into two modes of operation: automatic mode and manual mode. The following is a description of the two modes of operation: Automatic mode: adjust the preset pressure button up or down in the pressure adjustment button 13, and observe whether the preset pressure reaches the specified value through the status display screen 14; then, open the pressure holding device 10 to open the liquid passage, press the filling button in the mode adjustment button 12, and then release the triggering device 6, so that the triggering device 6 is triggered once, and the liquid in the liquid storage device 1 can be slowly injected into the adjustable balloon 18 through the micro vacuum liquid pump 17; when the actual pressure reaches the preset pressure value, the micro vacuum liquid pump 17 stops pressurizing, and then rotates the knob of the pressure holding device 10 to close the passage, and maintains the working pressure for at least 30 seconds for full expansion. After the expansion operation is completed, rotate the pressure holding device 10 to connect the liquid passage, press the suction button in the mode adjustment button 12, and then release the triggering device 6, so that the triggering device 6 is triggered once, and at this time the control circuit board 4 controls the micro vacuum liquid pump 17 to extract the liquid in the adjustable balloon 18 into the liquid storage device 1, and when the adjustable balloon 18 is in a contracted state, it can be slowly withdrawn.

[0027] Manual mode: For patients with longer and more complex ureteral strictures, the balloon can be expanded or deflated by manually adjusting the working pressure to meet the requirements. First, trigger the manual pressure adjustment button in the middle of the pressure adjustment button 13, and use the upper preset pressure adjustment button or the downward preset pressure adjustment button to adjust the preset pressure value, and observe whether the working pressure reaches the specified value through the status display screen 14; at this time, open the pressure holding device 10 to open the liquid passage, press the filling button on the mode adjustment button 12, and continue to depress the firing switch 7 in the firing device 6 to keep it triggered, release the firing switch 7 in the firing device 6 to stop the triggering, after the above-mentioned firing device 6 is triggered, the preset pressure can also be adjusted by the pressure adjustment button 13 according to the actual application situation, so that it can be controlled by the preset pressure and the triggering of the firing device 6; during the continuous triggering of the firing switch 7 in the firing device 6, the liquid in the liquid storage device 1 is slowly injected into the adjustable balloon 18 through the micro vacuum liquid pump 17; when the firing switch 7 in the firing device 6 stops triggering, the micro vacuum liquid pump 17 stops pressurizing; after reaching the required pressure, rotate the pressure holding device 10 to close the liquid passage, and maintain the working pressure for at least 30 seconds for full expansion. After the expansion operation is completed, the decompression and withdrawal process of the adjustable balloon 18 is the same as the operation in the automatic mode.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electrically adjustable balloon dilatation catheter, comprising a housing portion, characterized in that: It also includes a liquid storage device (1), a micro vacuum liquid pump (17), a pressure maintaining device (10), a balloon joint (11), and an adjustable balloon (18). The liquid storage device (1) is mounted and fixed at the end of the housing portion, and liquid is stored in the liquid storage device (1); The micro vacuum liquid pump (17) is installed in the housing portion, and one end of the micro vacuum liquid pump (17) is connected to the liquid storage device (1), and the other end of the micro vacuum liquid pump (17) is connected to the adjustable balloon (18) via the balloon joint (11), so that the adjustable balloon (18) contracts or expands and deforms when liquid is extracted or injected through the micro vacuum liquid pump (17); The pressure-maintaining device (10) is installed at the front end of the shell part, and the balloon joint (11) passes through the pressure-maintaining device (10). The pressure-maintaining device (10) is provided with a knob for adjusting the on / off state of the balloon joint (11). After the adjustable balloon (18) is filled with liquid to expand and deform, the pressure-maintaining device (10) can be operated to maintain the pressure of the adjustable balloon (18).

2. The electrically adjustable balloon dilatation catheter according to claim 1, characterized in that: A battery holder (3) is fixedly mounted on the lower end of the shell portion, and a control circuit board (4) and a battery (5) are mounted in the battery holder (3). The battery (5) is used to supply power to the micro vacuum liquid pump (17) and the control circuit board (4).

3. The electrically adjustable balloon dilatation catheter according to claim 2, characterized in that: The housing portion is provided with a mode adjustment button (12), the mode adjustment button (12) being provided with two button positions electrically connected to a control circuit board (4), the control circuit board (4) being electrically connected to a micro vacuum liquid pump (17), and the control circuit board (4) controls the micro vacuum liquid pump (17) to extract liquid from the liquid storage device (1) or discharge liquid into the balloon joint (11) according to trigger signals from the two button positions in the mode adjustment button (12).

4. The electrically adjustable balloon dilatation catheter according to claim 3, characterized in that: The shell portion is also provided with a pressure regulating button (13), and a pressure sensor for detecting the pressure of the adjustable balloon (18) is also installed in the shell portion, and the pressure sensor is also electrically connected to the control circuit board (4). The pressure regulating button (13) is provided with three button positions electrically connected to the control circuit board (4), and the control circuit board (4) respectively adjusts the preset pressure upward, adjusts the preset pressure downward, and selects manual pressure adjustment according to the triggering of the three button positions in the pressure regulating button (13).

5. The electrically adjustable balloon dilatation catheter according to claim 4, characterized in that: The housing portion is also provided with a status display screen (14), the status display screen (14) being electrically connected to the control circuit board (4), and the control circuit board (4) being used to output and display an actual pressure value of the adjustable balloon (18) detected by the pressure sensor and a preset pressure value.

6. The electrically adjustable balloon dilatation catheter according to claim 5, characterized in that: A firing device (6) is also installed below the shell portion, and a firing switch (7) electrically connected to the control circuit board (4) is provided in the firing device (6). The control circuit board (4) controls the working state of the micro vacuum liquid pump (17) according to trigger signals from the firing switch (7), the mode adjustment button (12), the pressure adjustment button (13), and the feedback signal from the pressure sensor.

7. The electrically adjustable balloon dilatation catheter according to claim 1, characterized in that: A swivel joint (8) rotatably connected to the pressure-maintaining device (10) is installed at the front end thereof, the balloon joint (11) passes through the swivel joint (8) and is fixedly connected thereto, and the position states of the balloon joint (11) and the adjustable balloon (18) can be adjusted through the rotation of the swivel joint (8).

8. The electrically adjustable balloon dilatation catheter according to claim 1, characterized in that: A developing mark (16) is also sleeved at the connection position between the adjustable balloon (18) and the balloon joint (11), and the developing mark (16) is set to be a platinum-iridium alloy material.

9. The electrically adjustable balloon dilatation catheter according to claim 1, characterized in that: The adjustable balloon (18) is configured as a silicone balloon, and the outer surface of the adjustable balloon (18) is provided with a hydrophilic coating.

10. An electrically adjustable balloon dilatation catheter according to any one of claims 1 to 6, characterized in that: The shell portion comprises a first shell portion (9) and a second shell portion (15), the first shell portion (9) and the second shell portion (15) being snap-fitted and fixed to each other, and an inner cavity for accommodating and installing a micro vacuum liquid pump (17) and a pressure sensor is formed between the first shell portion (9) and the second shell portion (15).

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