Medical extracorporeal lithotripter with fault protection function

Abstract

The invention relates to the technical field of medical instruments, and discloses a medical extracorporeal lithotripter with a fault protection function, the medical extracorporeal lithotripter comprises a mainframe box and a treatment couch, the top of the mainframe box is fixedly provided with a supporting seat, the supporting seat is fixedly connected with an electric push rod, and the output end of the electric push rod is fixedly connected with a shock wave generator; a shock wave generator is installed in the main case, a water bag is fixedly installed under the shock wave generator, an installation frame is fixedly connected to the shock wave generator, a liquid storage tank is installed in the installation frame, a water tank and a vacuum pump are installed in the main case, and the shock wave generator is attached to the water bag in an adsorption mode through the vacuum pump. The liquid storage tank is arranged in the vacuum pipeline, a physical protection barrier is provided, liquid leaked accidentally can be buffered and collected, the probability that the liquid directly intrudes into the rear-end vacuum pump is structurally reduced, and the reaction treatment time after a fault occurs is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a medical extracorporeal lithotripsy with a fault protection function. Background Art

[0002] A medical extracorporeal lithotripter is a medical device that focuses shock waves generated outside the body on stones in the body, causing them to gradually break into small particles under the action of the energy of the shock waves and then be excreted from the body with urine.

[0003] The medical extracorporeal lithotripsy is mainly composed of a shock wave generator, a positioning system, a treatment bed, a control system, a water bag and a vacuum device. The stone position is first locked by the positioning system, and then the patient is placed on the treatment bed so that the corresponding position of the stone fits with the water bag. The water bag is filled with degassed water, which serves as a medium for shock wave transmission. The vacuum device sucks the space between the diaphragm and the generator into a vacuum state. The shock wave generator generates high-energy shock waves and strengthens the shock waves through the vibration of the diaphragm, focusing them on the stones. The mechanical effect and cavitation effect of the shock wave are used to gradually break the stones and eventually excrete them from the body with urine.

[0004] The combination of the vacuum pump and the water bag in the existing Chinese extracorporeal lithotripsy can indeed assist and enhance the lithotripsy effect. However, when the diaphragm on the shock wave generator is damaged, the liquid inside the water bag will enter the vacuum pump adsorption channel in the generator through the gap in the broken diaphragm. Since the vacuum pump is in a continuous operation state, the outflowing liquid will be directly sucked into the vacuum pump. On the one hand, it will cause the mechanical parts of the vacuum pump to rust and get stuck. On the other hand, the liquid entering the circuit system is likely to cause a short circuit, which in turn causes the entire control circuit to malfunction, which not only greatly increases the equipment maintenance cost, but also delays the patient's treatment time, posing a serious threat to the normal operation of the equipment and medical safety. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a solution to the problem that after the shock wave generator fails and the water bag is damaged, the liquid flows into the vacuum pump, causing mechanical damage to the equipment and circuit short circuit, thereby affecting the safe operation of the equipment and clinical treatment efficiency.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A medical extracorporeal lithotripter with fault protection function, comprising a main case and a treatment bed, a support base fixedly installed on the top of the main case, an electric push rod fixedly connected to the support base, a shock wave generator fixedly connected to the output end of the electric push rod, a water bag fixedly installed directly below the shock wave generator, a mounting frame fixedly connected to the shock wave generator, a liquid storage tank installed inside the mounting frame, a water tank and a vacuum pump installed inside the main case, the shock wave generator is adsorbed and fitted with the water bag through the vacuum pump, the water bag is arranged on the top of the treatment bed, a vacuum tube 1 is installed at the input end of the vacuum pump, and the vacuum tube 1 is connected to the liquid storage tank.

[0007] Preferably, an elastic mounting assembly is provided between the mounting frame and the liquid storage tank, the elastic mounting assembly includes a bolt, the bolt is installed between the mounting frame and the liquid storage tank, a mounting plate is provided between the bolt and the mounting frame, a pair of retaining rings are symmetrically provided inside the mounting frame, and a spring is evenly installed between the pair of retaining rings and the mounting frame.

[0008] Preferably, a heat dissipation component is provided inside the main chassis, and the heat dissipation component includes a fan, and the fan is installed inside the main chassis, and a heat sink is fixedly connected to the side of the main chassis away from the fan, and a heat dissipation ring is fixedly connected to the side of the heat sink away from the main chassis.

[0009] Preferably, the interior of the liquid storage tank is fixedly connected to a fixing rod, the top of the fixing rod is fixedly connected to a fixing block, a connecting rod 1 is installed inside the fixing block, one end of the connecting rod 1 is rotatably connected to a connecting rod 2, and the end of the connecting rod 2 away from the connecting rod 1 is fixedly connected to a float, and a limiting groove is provided inside the fixed block.

[0010] Preferably, a water pump 1 is installed on the top of the water tank, the output end of the water pump 1 is fixedly connected to the water inlet pipe, a water pump 2 is installed on the outside of the water pump 1, and the input end of the water pump 2 is fixedly connected to the drain pipe.

[0011] Preferably, a solenoid valve is installed on the outside of the vacuum tube 1, and the liquid storage tank is fixedly connected to the vacuum tube 2 at one end of the vacuum tube 1.

[0012] Preferably, the water inlet pipe and the drain pipe are both fixedly installed inside the shock wave generator.

[0013] Preferably, the connecting rod 1 is slidably connected to the middle of the limiting groove, a spring 2 is installed between the fixed block and the connecting rod 1, and the float is clamped with the end of the vacuum tube 1 away from the vacuum pump.

[0014] Preferably, a bolt hole is opened on one side of the mounting frame close to the bolt, the bolt is threadedly connected to the middle of the bolt hole, the liquid storage tank is installed between a pair of the clamping rings, and one end of the bolt close to the mounting frame abuts against the clamping ring.

[0015] Preferably, heat dissipation holes are evenly opened in the middle of the heat dissipation ring, and the output end of the fan is adapted to the position of the heat dissipation holes.

[0016] The present invention provides a medical extracorporeal lithotripsy with a fault protection function. It has the following beneficial effects:

[0017] 1. The present invention provides a key physical protection barrier for the equipment by setting a liquid storage tank in the vacuum pipeline. When the water bag is accidentally damaged and leaks, the liquid storage tank can effectively buffer and collect the liquid. This method structurally reduces the probability of liquid directly invading the rear-end vacuum pump, improves the response time after a fault occurs, and effectively avoids the risk of chain failures such as pump corrosion, jamming or circuit short circuit caused by liquid intrusion.

[0018] 2. The present invention uses a snap-fit ​​structure between a float in a liquid storage tank and a vacuum tube. When the water bag is damaged and leaks into the liquid storage tank, the float rises due to the buoyancy, driving the connecting rod to slide in the limit groove and stretching the spring. Finally, the end of the float is snap-fitted to the port of the vacuum tube away from the vacuum pump, physically blocking the vacuum path and preventing liquid from being sucked into the vacuum pump, which may cause rust on mechanical parts or short circuits, thereby achieving active protection in the event of a fault from a structural perspective.

[0019] 3. The present invention uses an elastic mounting assembly between the mounting frame and the liquid storage tank, with bolts passing through bolt holes to connect the two. The mounting plate provides support, and the upper and lower symmetrical clamping rings absorb the vibration caused by the liquid impact in the liquid storage tank under the action of the spring, ensuring the stable movement of the float, avoiding false triggering of the float or failure of the clamping due to vibration, and improving the reliability of the fault protection structure.

[0020] 4. The present invention maintains a stable operating temperature of the equipment and optimizes the lithotripsy treatment effect and equipment durability by combining a closed water cycle formed by water pump 1, a water inlet pipe, water pump 2 and a drain pipe, and a heat dissipation system composed of a fan, a heat sink and a heat dissipation ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the treatment bed of the present invention;

[0023] Figure 3 This is a schematic diagram of the main chassis of the present invention;

[0024] Figure 4It is a schematic diagram of a water tank of the present invention;

[0025] Figure 5 It is a schematic diagram of the liquid storage tank of the present invention;

[0026] Figure 6 It is a schematic diagram of the float ball of the present invention;

[0027] Figure 7 is a schematic diagram of the elastic mounting assembly of the present invention;

[0028] Figure 8 A schematic diagram of a spring according to the present invention;

[0029] Figure 9 For attachment Figure 2 A magnified view of the middle panel.

[0030] Among them, 1. Main chassis; 2. Treatment bed; 3. Support base; 4. Shock wave generator; 5. Water bag; 6. Elastic mounting assembly; 61. Bolt; 62. Mounting plate; 63. Retaining ring; 64. Bolt hole; 65. Spring 1; 7. Heat dissipation assembly; 71. Fan; 72. Heat sink; 73. Heat dissipation ring; 74. Heat dissipation hole; 8. Mounting frame; 9. Liquid storage tank; 10. Water tank; 11. Water pump 1; 12. Water inlet pipe; 13. Drain pipe; 14. Water pump 2; 15. Vacuum pump; 16. Solenoid valve; 17. Vacuum tube 1; 18. Vacuum tube 2; 19. Electric push rod; 20. Fixed rod; 21. Fixed block; 22. Connecting rod 1; 23. Connecting rod 2; 24. Float; 25. Limit slot; 26. Spring 2. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments 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.

[0032] Please see the attached Figure 1 , Attachment Figure 5 and attached Figure 6The embodiment of the present invention provides a medical extracorporeal lithotripsy with a fault protection function, comprising a main box 1 and a treatment bed 2. A support base 3 is fixedly installed on the top of the main box 1, an electric push rod 19 is fixedly connected to the support base 3, an output end of the electric push rod 19 is fixedly connected to a shock wave generator 4, a water bag 5 is fixedly installed just below the shock wave generator 4, a mounting frame 8 is fixedly connected to the shock wave generator 4, a liquid storage tank 9 is installed inside the mounting frame 8, a water tank 10 and a vacuum pump 15 are installed inside the main box 1, and the shock wave generator 4 generates a vacuum through a vacuum pump. The air pump 15 is adsorbed and fitted with the water bag 5, and the water bag 5 is arranged on the top of the treatment bed 2. A vacuum tube 17 is installed at the input end of the vacuum pump 15, and the vacuum tube 17 is connected to the liquid storage tank 9. A fixed rod 20 is fixedly connected to the inside of the liquid storage tank 9, and a fixed block 21 is fixedly connected to the top of the fixed rod 20. A connecting rod 1 22 is installed inside the fixed block 21, and one end of the connecting rod 1 22 is rotatably connected to the connecting rod 2 23. The end of the connecting rod 23 away from the connecting rod 1 22 is fixedly connected to a float 24, and a limiting groove 25 is provided inside the fixed block 21.

[0033] Specifically, the position of the shock wave generator 4 is adjusted by the electric push rod 19 fixed to the support base 3 on the top of the main box 1, so that the water bag 5 is aligned with the patient's stone site. After starting the vacuum pump 15, a negative pressure path is formed through the vacuum tube 1 17, the liquid storage tank 9 and the vacuum tube 2 18, and the water bag 5 is adsorbed on the transmitting end of the shock wave generator 4 to conduct the shock wave lithotripsy. At the same time, the water tank 10 supplies water to the water bag 5. During the operation, if the water bag 5 is damaged and leaks into the liquid storage tank 9, the connecting rod in the top fixed block 21 of the fixed rod 20 in the liquid storage tank 9 The float 24 connected to the connecting rod 22 by the connecting rod 23 rises due to the buoyancy, slides in the limit groove 25 and stretches the spring 26 until the float 24 and the vacuum tube 1 17 are engaged with the port away from the vacuum pump 15 to block the vacuum path. Through the engagement structure between the float 24 and the vacuum tube 1 17 and the linkage design of the spring 26, active blocking is achieved in the event of leakage. Without manual intervention, protection can be completed before the liquid flows into the vacuum pump 15, eliminating the risk of pump body damage and circuit short circuit from the mechanical structure level, thereby improving equipment safety.

[0034] Please see the attached Figure 3 -Attached Figure 4 A water pump 11 is installed on the top of the water tank 10, and the output end of the water pump 11 is fixedly connected to the water inlet pipe 12. A water pump 2 14 is installed on the outside of the water pump 11, and the input end of the water pump 2 14 is fixedly connected to the drain pipe 13. The water inlet pipe 12 and the drain pipe 13 are both fixedly installed inside the shock wave generator 4.

[0035] Specifically, the water in the water tank 10 is pressurized by the water pump 11 installed on the top of the water tank 10, and is transported to the water channel fixedly installed inside the shock wave generator 4 through the water inlet pipe 12 to participate in the shock wave conduction process. The waste liquid that has completed the conduction is pumped back to the water tank 10 by the water pump 2 14 through the drain pipe 13, forming a closed water circulation system. This structure ensures the continuous circulation of water to efficiently conduct shock wave energy through the cooperation of the water pump 11, the water inlet pipe 12, the water pump 2 14 and the drain pipe 13 with the water channel inside the shock wave generator 4.

[0036] Please see the attached Figure 2 -Attached Figure 4 A solenoid valve 16 is installed on the outside of the vacuum tube 17, and one end of the vacuum tube 17 of the liquid storage tank 9 is fixedly connected to a vacuum tube 2 18.

[0037] Specifically, a closed vacuum passage is formed through the vacuum tube 17 installed at the input end of the vacuum pump 15, the vacuum tube 2 18 and the vacuum tube 17 at both ends of the liquid storage tank 9, and the solenoid valve 16 installed on the outside of the vacuum tube 17. After the vacuum pump 15 is started, the solenoid valve 16 is opened, and the vacuum negative pressure is transmitted to the cavity between the water bag 5 and the shock wave generator 4 through the vacuum tube 1 17, the liquid storage tank 9, and the vacuum tube 2 18, so that the water bag 5 is adsorbed and fitted to the transmitting end of the shock wave generator 4, thereby achieving stable adsorption and fitting of the water bag 5 and the shock wave generator 4, ensuring efficient transmission of shock wave energy, and providing a vacuum negative pressure basis for the float 24 to block leakage, thereby laying the path conditions for the realization of the equipment fault protection function.

[0038] Please see the attached Figure 7 -Attached Figure 8 An elastic mounting assembly 6 is provided between the mounting frame 8 and the liquid storage tank 9. The elastic mounting assembly 6 includes a bolt 61. The bolt 61 is installed between the mounting frame 8 and the liquid storage tank 9. A mounting piece 62 is provided between the bolt 61 and the mounting frame 8. A pair of snap rings 63 are symmetrically provided inside the mounting frame 8. A spring 65 is evenly installed between the pair of snap rings 63 and the mounting frame 8. A bolt hole 64 is provided on one side of the mounting frame 8 close to the bolt 61. The bolt 61 is threadedly connected to the middle of the bolt hole 64. The liquid storage tank 9 is installed between the pair of snap rings 63, and one end of the bolt 61 close to the mounting frame 8 abuts against the snap ring 63.

[0039] Specifically, a bolt 61 passes through the bolt hole 64 of the mounting frame 8 and abuts against the mounting plate 62 to provide basic fixed support for the liquid storage tank 9. The symmetrically arranged upper and lower retaining rings 63 tightly wrap the liquid storage tank 9 under the elastic action of the spring 1 65. When the liquid storage tank 9 vibrates due to the impact of leakage, the spring 1 65 quickly deforms to absorb the impact force and prevents the vibration from being transmitted to the internal float 24; when the liquid in the liquid storage tank 9 increases, resulting in an increase in weight or displacement, the spring 1 65 continuously alleviates the shaking of the liquid storage tank 9 through elastic buffering, ensuring the accuracy and stability of the float 24 when the leakage triggers the blocking action, effectively avoiding the problem of false triggering or card failure caused by vibration, and improving the reliability and durability of the fault protection structure.

[0040] Please see the attached Figure 1 and attached Figure 9 A heat dissipation component 7 is provided inside the main chassis 1. The heat dissipation component 7 includes a fan 71. The fan 71 is installed inside the main chassis 1. A heat sink 72 is fixedly connected to the side of the main chassis 1 away from the fan 71. A heat dissipation ring 73 is fixedly connected to the side of the heat sink 72 away from the main chassis 1. Heat dissipation holes 74 are evenly opened in the middle of the heat dissipation ring 73. The output end of the fan 71 is adapted to the position of the heat dissipation hole 74.

[0041] Specifically, forced airflow is generated by the high-speed operation of the fan 71, and the airflow undergoes preliminary heat exchange through the heat sink 72 on the side wall of the main chassis 1. Subsequently, the heat dissipation ring 73 on the outside of the heat sink 72 uses the heat dissipation holes 74 evenly distributed in the middle to further expand the air circulation area, accelerate the air convection efficiency, and enable heat to be quickly and fully dissipated to the external environment. This structure helps to reduce the internal temperature of the main chassis 1, ensure that the core components operate stably at an appropriate temperature, and avoid equipment performance degradation or failure due to overheating.

[0042] Working principle: After starting the equipment, the electric push rod 19 on the support base 3 moves, and the electric push rod 19 pushes the shock wave generator 4 to adjust the position to the patient. At this time, the vacuum pump 15 starts to work, and a negative pressure path is formed through the vacuum tube 1 17, the liquid storage tank 9 and the vacuum tube 2 18, which extracts the air in the water bag 5, so that the water bag 5 is tightly adsorbed on the transmitting end of the shock wave generator 4, ensuring that the shock wave energy is effectively transmitted to the stone site. The treatment bed 2 carries the patient, and the water bag 5 acts as a conductive medium to focus the energy generated by the shock wave generator 4 on the stone, thereby achieving lithotripsy treatment;

[0043] After the water in the water tank 10 is pressurized by the water pump 11, it is transported to the water bag 5 through the water inlet pipe 12 to participate in the shock wave conduction process. The waste liquid after the conduction is pumped back to the water tank 10 by the water pump 2 14 through the drain pipe 13, forming a closed water cycle. At the same time, the fan 71 in the main box 1 is running, and the air is discharged outward through the heat sink 72 on the side wall of the main box 1. The heat dissipation ring 73 on the outside of the heat sink 72 accelerates air convection through the heat dissipation holes 74 evenly distributed in the middle, dissipating the heat in the main box 1 and maintaining the stable operating temperature of various components of the equipment.

[0044] When the water bag 5 is damaged and liquid leaks, the leaked liquid flows into the liquid storage tank 9 through the vacuum tube 2 18. The float 24 in the liquid storage tank 9 rises due to the buoyancy of the liquid. After the float 24 rises to a predetermined position, under the adsorption effect of the vacuum pump 15, the connecting rod 23 drives the connecting rod 1 22 to stretch the spring 26 and slide in the limiting groove 25 to gradually approach the vacuum tube 1 17. Finally, the float 24 is engaged with the port of the vacuum tube 17 away from the vacuum pump 15, physically blocking the vacuum path, preventing liquid from being sucked into the vacuum pump 15, and avoiding damage to the pump body or circuit failure.

[0045] The liquid storage tank 9 is fixed to the outside of the shock wave generator 4 through the mounting frame 8, and the elastic mounting assembly 6 between the mounting frame 8 and the liquid storage tank 9 realizes the buffering function: the bolt 61 passes through the bolt hole 64 of the mounting frame 8 and abuts against the mounting plate 62, and the mounting plate 62 provides support. The upper and lower symmetrical clamping ring 63 absorbs the vibration generated by the liquid impact on the liquid storage tank 9 under the action of spring 1 65, ensuring the stability of the movement of the float 24. When the liquid in the liquid storage tank 9 increases, the elastic mounting assembly 6 alleviates the displacement of the liquid storage tank 9 through the deformation of spring 1 65, avoiding the float 24 from being triggered incorrectly or failing to snap into place due to vibration.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A medical extracorporeal lithotripsy with a fault protection function, comprising a main box (1) and a treatment bed (2), characterized in that: A support base (3) is fixedly installed on the top of the main box (1), an electric push rod (19) is fixedly connected to the support base (3), an output end of the electric push rod (19) is fixedly connected to a shock wave generator (4), a water bag (5) is fixedly installed directly below the shock wave generator (4), a mounting frame (8) is fixedly connected to the shock wave generator (4), a liquid storage tank (9) is installed inside the mounting frame (8), a water tank (10) and a vacuum pump (15) are installed inside the main box (1), the shock wave generator (4) is adsorbed and attached to the water bag (5) through the vacuum pump (15), the water bag (5) is arranged on the top of the treatment bed (2), a vacuum tube (17) is installed at the input end of the vacuum pump (15), and the vacuum tube (17) is connected to the liquid storage tank (9).

2. A medical extracorporeal lithotripsy with a fault protection function according to claim 1, characterized in that: An elastic mounting assembly (6) is provided between the mounting frame (8) and the liquid storage tank (9), the elastic mounting assembly (6) comprising a bolt (61), the bolt (61) being installed between the mounting frame (8) and the liquid storage tank (9), a mounting plate (62) being provided between the bolt (61) and the mounting frame (8), a pair of snap rings (63) being symmetrically provided in the upper and lower parts of the interior of the mounting frame (8), and a spring (65) being evenly installed between the pair of snap rings (63) and the mounting frame (8).

3. The medical extracorporeal lithotripsy with fault protection function according to claim 1, characterized in that: A heat dissipation assembly (7) is provided inside the main chassis (1), and the heat dissipation assembly (7) includes a fan (71). The fan (71) is installed inside the main chassis (1), and a heat sink (72) is fixedly connected to a side of the main chassis (1) away from the fan (71), and a heat dissipation ring (73) is fixedly connected to a side of the heat sink (72) away from the main chassis (1).

4. The medical extracorporeal lithotripsy with fault protection function according to claim 1, characterized in that: The interior of the liquid storage tank (9) is fixedly connected to a fixing rod (20), the top of the fixing rod (20) is fixedly connected to a fixing block (21), a connecting rod 1 (22) is installed inside the fixing block (21), one end of the connecting rod 1 (22) is rotatably connected to a connecting rod 2 (23), an end of the connecting rod 2 (23) away from the connecting rod 1 (22) is fixedly connected to a floating ball (24), and a limiting groove (25) is provided inside the fixing block (21).

5. The medical extracorporeal lithotripsy with fault protection function according to claim 1, characterized in that: A water pump 1 (11) is installed on the top of the water tank (10), and the output end of the water pump 1 (11) is fixedly connected to a water inlet pipe (12). A water pump 2 (14) is installed on the outside of the water pump 1 (11), and the input end of the water pump 2 (14) is fixedly connected to a drain pipe (13).

6. The medical extracorporeal lithotripsy with fault protection function according to claim 1, characterized in that: An electromagnetic valve (16) is installed on the outside of the vacuum tube 1 (17), and the liquid storage tank (9) is fixedly connected to the vacuum tube 2 (18) at one end of the vacuum tube 1 (17).

7. The medical extracorporeal lithotripsy with fault protection function according to claim 5, characterized in that: The water inlet pipe (12) and the drain pipe (13) are both fixedly installed inside the shock wave generator (4).

8. The medical extracorporeal lithotripsy with fault protection function according to claim 4, characterized in that: The connecting rod 1 (22) is slidably connected to the middle of the limiting groove (25), a spring 2 (26) is installed between the fixed block (21) and the connecting rod 1 (22), and the float (24) is clamped with the end of the vacuum tube 1 (17) away from the vacuum pump (15).

9. The medical extracorporeal lithotripsy with fault protection function according to claim 2, characterized in that: A bolt hole (64) is provided on one side of the mounting frame (8) close to the bolt (61), and the bolt (61) is threadedly connected to the middle of the bolt hole (64). The liquid storage tank (9) is installed between a pair of the retaining rings (63), and one end of the bolt (61) close to the mounting frame (8) is in contact with the retaining ring (63).

10. The medical extracorporeal lithotripsy with fault protection function according to claim 3, characterized in that: The middle of the heat dissipation ring (73) is evenly provided with heat dissipation holes (74), and the output end of the fan (71) is adapted to the position of the heat dissipation holes (74).

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