Endoscope dilated cavity suction dual power interlock device

Abstract

The utility model belongs to medical equipment technical field especially, relate to a kind of endoscope cavity expansion suction double power interlocking equipment.The utility model in existing technology to the pipeline of negative pressure suction device and cavity expansion equipment is inserted in the water inlet and suction channel of endoscope respectively manually frequently switch, it is troublesome to operate to need to frequently go off one device and start device, also lead to instrument large pipeline and cause the problem of inconvenience to operation, provide a kind of endoscope cavity expansion suction double power interlocking equipment, by concentrating peristaltic pump and vacuum pump in shell and realizing interlocking by control module control in shell, realizes quick switching liquid filling and liquid collection.The utility model also sets up water inlet sensor, after detecting that vacuum pump is used for the negative pressure suction pipe of air extraction water, timely signal is given to control module while closing vacuum pump and the electromagnetic valve between vacuum pump and water inlet sensor, realizes double insurance of preventing vacuum pump from being damaged by water.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, and in particular relates to an endoscopic expansion cavity suction dual-power interlock device. Background Technology

[0002] Traditional endoscopy requires the use of a distending device (usually a peristaltic pump driving distending fluid) to inject liquid into the uterine cavity to expand it for easier observation and surgery. Simultaneously, a negative pressure suction device is often used during the procedure to absorb the fluid and tissue debris. In different scenarios, the distending device and the negative pressure suction device often need to be switched on and off simultaneously to achieve better working results (such as rapid extraction and rapid distending). Currently, the tubing for the negative pressure suction device and the distending device is typically inserted separately into the endoscope's water inlet and suction channels, requiring frequent manual switching. This operation is cumbersome, requiring frequent switching on and off of one device, and also results in large instruments and numerous tubing, causing inconvenience during surgery.

[0003] For example, a Chinese utility model patent application discloses a phase-locked loop method and an ultrasonic scalpel system [Application No.: CN202111075013.1]. This utility model connects a liquid channel and a pressure sensor channel. A pressurized liquid squeezes a pressure sensor diaphragm. The pressure sensor senses the pressure on the diaphragm, and when pressure is present, the diaphragm forms a large bulge that squeezes the pressure sensor, thus detecting the liquid pressure. The pressure sensor converts the pressure into an electrical signal, which is transmitted to the expansion pump control board for signal processing. The expansion pump control board then transmits the pressure signal to the expansion pump display screen for real-time pressure display. The display screen is used to adjust and set the pressure and flow rate. Afterward, stable saline solution with consistent pressure and flow rate enters the connecting tube and finally exits through a guide sheath, achieving flushing and other functions. This constant-pressure, constant-flow medical endoscopic expansion pump device ensures more stable pressure and flow rate of saline solution, preventing intermittent flow and minimizing harm to the patient.

[0004] Although the solution provided by this invention can maintain stable pressure during the expansion process, it still does not solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing an endoscope expansion cavity suction dual-power interlock device.

[0006] This utility model includes a hollow shell, a control module located inside the shell, and a peristaltic pump. The control module controls the peristaltic pump with electrical signals. Its distinguishing feature is that it also includes a vacuum pump located inside the shell and a negative pressure suction tube with one end connected to the vacuum pump and the other end extending out of the shell. The control module controls the vacuum pump. The peristaltic pump includes a drive unit located inside the shell and a rotating wheel extending outside the shell. The control module connects to and controls the drive unit, and interlocks the vacuum pump and the drive unit.

[0007] Preferably, the housing has a suction hole on one side of the rotating wheel, and the negative pressure suction tube passes through the suction hole, which can avoid redundancy in the circuit.

[0008] Preferably, it also includes a water inlet sensor located inside the housing, the water inlet sensor detects the water inlet status of the negative pressure suction tube inside the housing, and the control module stops the vacuum pump immediately after receiving the water inlet signal from the water inlet sensor.

[0009] Preferably, it also includes an injection tube and a wire structure fixed to the outer wall of the housing, wherein the injection tube is wound around the rotating wheel, and the wire structure fixes the direction of the injection tube at the front and rear sections of the rotating wheel.

[0010] Preferably, one end of the infusion tube is connected to an infusion fluid source, and the wire structure is equipped with a pressure sensor to detect the pressure of the infusion tube and feed it back to the control module. The control module adjusts the rotation speed of the impeller according to the pressure feedback.

[0011] Preferably, the housing includes a fan, the housing has heat dissipation holes, and the fan starts simultaneously with the vacuum pump or peristaltic pump to blow air from inside the housing out of the heat dissipation holes.

[0012] Preferably, the negative pressure suction tube is provided with a solenoid valve controlled by the control module in the interval between the water inlet sensor and the vacuum pump. When the water inlet sensor transmits a water inlet signal to the control module, the control module closes the solenoid valve to prevent the negative pressure suction tube from drawing back.

[0013] Preferably, it also includes a display screen installed on the outer wall of one side of the housing wheel. The display screen is connected to the control module and can input control commands and display the operating status of the equipment.

[0014] Compared with existing technologies, the advantages of this utility model are: This invention simultaneously incorporates a peristaltic pump drive unit and a vacuum pump within the housing, both connected to a control module located within the housing. The control module interlocks the vacuum pump and peristaltic pump. Furthermore, the suction and infusion lines are centrally located on the same side of the housing's outer wall, significantly saving space and preventing complex wiring. Simultaneously, by incorporating a combination of a solenoid valve and a water inlet sensor along the negative pressure suction line connected to the vacuum pump within the housing, the vacuum pump can be instantly shut down and backflow prevented when backflow threatens its safety, thus enhancing instrument safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram from another perspective of the present invention; Figure 3 This is a partial exploded view of the present invention; Figure 4 for Figure 3 Another perspective illustration; Figure 5 This is a schematic diagram illustrating the working principle of this utility model. Figure 6 This is a schematic diagram of a vacuum pump pumping water. In the diagram: 1. Housing; 2. Control module; 3. Peristaltic pump; 31. Drive unit; 32. Rotary wheel; 4. Vacuum pump; 5. Negative pressure suction tube; 11. Suction hole; 6. Water inlet sensor; 7. Injection tube; 8. Wire structure; 9. Pressure sensor; 10. Fan; 12. Heat dissipation hole; 13. Solenoid valve; 14. Display screen. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] This invention relates to an endoscope expansion cavity suction dual-power interlock device, comprising a hollow housing 1, a control module 2 located inside the housing 1, and a peristaltic pump 3, wherein the control module 2 controls the peristaltic pump 3; simultaneously, this invention provides a vacuum pump 4 inside the housing 1, and also provides a negative pressure suction tube 5 with one end connected to the vacuum pump 4 and the other end extending out of the housing 1, wherein the control module 2 controls the vacuum pump 4; the peristaltic pump 3 includes a drive unit 31 located inside the housing 1 and a rotating wheel 32 extending outside the housing 1, wherein the control module 2 connects to control the drive unit 31 and controls the vacuum pump 4 and the drive unit 31 to interlock.

[0018] In this invention, when either the peristaltic pump 3 or the vacuum pump 4 is started, a message is sent to the control module 2 to lock the other pump. The two pumps are interlocked through a single control module 2, which saves mechanical space and improves switching efficiency.

[0019] Furthermore, such as Figure 2 As shown, the housing 1 has a suction hole 11 on one side of the rotating wheel 32, and the negative pressure suction tube 5 extends out of the suction hole. In this way, all the pipes can be concentrated on the same side to prevent the pipes from becoming cluttered.

[0020] Preferably, because vacuum pumps use a mechanical pumping principle, they are less capable of handling liquid substances, especially water molecules, which are relatively small and easily drawn in, causing a sudden increase in internal pressure and potentially damaging the equipment. If the vacuum pump is forced to run, the oil separated by the oil separator may mix with water, degrading the oil quality and causing equipment overheating and other malfunctions. Therefore, in medical applications, one or more collection bottles are often used, such as... Figure 6 As shown, a vacuum pump draws air from the top of the bottle, and an endoscopic suction tube leads to the bottom of the bottle for liquid collection. Backflow occurs when the collection bottle is full, therefore... Figure 4As shown, a water inlet sensor 6 is installed inside the housing 1. The water inlet sensor 6 detects the water inlet status of the negative pressure suction tube 5 inside the housing 1. After receiving the water inlet signal from the water inlet sensor 6, the control module 2 immediately stops the vacuum pump 4 to prevent damage.

[0021] Furthermore, such as Figure 2 , 3 The diagram also includes an injection tube 7 and a wire structure 8 fixed to the outer wall of the housing 1. The injection tube 7 is wound around the rotating wheel 32. The drive unit 31 of the peristaltic pump 3 drives the rotating wheel 32 to rotate and squeeze the injection tube 7 to deliver the expanded liquid. The wire structure 8 fixes the direction of the injection tube 7 at the front and rear sections of the rotating wheel 32 to prevent the wire from becoming messy and tangled.

[0022] like Figure 3 As shown in Figure 4, one end of the infusion tube 7 is connected to the infusion fluid source (which can be physiological saline, etc.). The wire structure 8 also serves to install the pressure sensor 9. The pressure sensor 9 detects the pressure of the infusion tube 7 and feeds it back to the control module 2. The control module 2 adjusts the rotation speed of the rotating wheel 32 according to the pressure feedback to achieve a stable expansion cavity.

[0023] Preferred, such as Figure 3 , 4 As shown, since the inside of the housing 1 is almost a sealed space, the housing 1 includes a fan 10 and has heat dissipation holes 12. When the vacuum pump 4 or the peristaltic pump 3 is started, the fan starts simultaneously to blow air from inside the housing 1 to the outside of the heat dissipation holes to achieve a heat dissipation effect.

[0024] Preferably, in order to better protect the vacuum pump 4 and prevent liquid backflow, the negative pressure suction pipe 5 is provided with a solenoid valve 13 controlled by the control module 2 in the interval between the water inlet sensor 6 and the vacuum pump 4. When the water inlet sensor 6 transmits a water inlet signal to the control module 2, the control module 2 closes the solenoid valve 13, and the liquid in the negative pressure suction pipe 5 will not continue to flow, further preventing liquid from being sucked back into the vacuum pump 4.

[0025] Preferred, such as Figure 3 As shown, it also includes a display screen 14 installed on the outer wall of one side of the rotating wheel 32 of the housing 1. The display screen 14 is connected to the control module 2 and can input control commands and display the operating status of the equipment.

[0026] The working principle of this utility model is as follows: Figure 1-4As shown, a peristaltic pump 3 and a vacuum pump 4 are installed inside the housing 1, and a control module 2 is also installed inside the housing 1 to control both and achieve interlocking. The drive unit 31 of the peristaltic pump 3 is inside the housing 1, and its rotor 32 extends out of the outer wall of the housing 1 to drive the infusion tube 7. The wire structure 8 organizes and fixes the infusion tube 7 to prevent the wires from becoming tangled, and also facilitates the installation of a pressure sensor 9 to detect the pressure inside the infusion tube 7. Meanwhile, the negative pressure suction tube 5 connected to the vacuum pump 4 extends out from the outer wall of the suction hole 11 on the same side of the housing 1 as the rotor 32, making it convenient for the endoscope to be connected to the suction and infusion lines on the same side of the housing 1 in this utility model. Furthermore, by setting a combination of a water inlet sensor 6 and a solenoid valve 13 in the housing 1, backflow of liquid in the negative pressure suction tube 5 can be prevented. The specific usage process of this utility model is as follows: one end of the negative pressure suction tube 5 is connected to the endoscope suction line interface, and one end of the infusion tube 7 is connected to the endoscope water inlet interface. The peristaltic pump 3 is activated via display screen 14 (or other mechanical switches). The drive unit 31 drives the liquid in the irrigation fluid source at one end of the irrigation tube 7 into the uterine cavity for expansion. The pressure sensor 9 continuously monitors the pressure of the liquid in the irrigation tube 7 and feeds it back to the control module 2 to adjust the speed of the rotating wheel 32 to achieve stable delivery of the expansion fluid. When it is necessary to better aspirate the expansion fluid and tissue debris contaminated during the operation, the vacuum pump 4 is activated. The interlock mechanism will cause the control module 2 to immediately stop the operation of the peristaltic pump 3 to achieve a better aspiration effect. The reverse is also true when it is necessary to stop aspiration for irrigation fluid. At the same time, if the collection bottle used to collect waste fluid is overfilled, causing liquid to flow back along the negative pressure aspiration tube 5, it will first be detected by the water inlet sensor 6 and fed back to the control module 2. The control module 2 will immediately shut off the solenoid valve 13 to prevent further liquid flow and shut off the vacuum pump 4, achieving double protection to prevent damage to the vacuum pump 4.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0028] Although this document frequently uses terms such as housing 1, control module 2, peristaltic pump 3, drive unit 31, rotor 32, vacuum pump 4, negative pressure suction tube 5, suction hole 11, water inlet sensor 6, filling tube 7, wire structure 8, pressure sensor 9, fan 10, heat dissipation hole 12, solenoid valve 13, and display screen 14, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An endoscopic cavity expansion and suction dual-power interlock device, comprising a hollow housing (1), a control module (2) located inside the housing (1), and a peristaltic pump (3), wherein the control module (2) controls the peristaltic pump (3); characterized in that: It also includes a vacuum pump (4) located inside the housing (1) and a negative pressure suction tube (5) with one end connected to the vacuum pump (4) and the other end extending out of the housing (1). The control module (2) controls the vacuum pump (4). The peristaltic pump (3) includes a drive unit (31) located inside the housing (1) and a rotating wheel (32) extending out of the housing (1). The control module (2) connects to control the drive unit (31) and controls the vacuum pump (4) and the drive unit (31) to interlock.

2. The endoscopic expansion cavity suction dual-power interlock device as described in claim 1, characterized in that: The housing (1) has a suction hole (11) on one side of the rotating wheel (32), and the negative pressure suction tube (5) passes through the suction hole (11).

3. The endoscopic expansion cavity suction dual-power interlock device as described in claim 1, characterized in that: It also includes a water inlet sensor (6) located inside the housing (1), which detects the water inlet status of the negative pressure suction tube (5) inside the housing (1), and the control module (2) stops the vacuum pump (4) immediately after receiving the water inlet signal from the water inlet sensor (6).

4. The endoscopic expansion cavity suction dual-power interlock device as described in claim 1, characterized in that: It also includes an injection tube (7) and a wire structure (8) fixed to the outer wall of the housing (1). The injection tube (7) is wound around the wheel (32), and the wire structure (8) fixes the direction of the injection tube (7) in the front and rear sections of the wheel (32).

5. The endoscopic expansion cavity suction dual-power interlock device as described in claim 4, characterized in that: One end of the infusion tube (7) is connected to the infusion liquid source. The wire structure (8) is equipped with a pressure sensor (9) to detect the pressure of the infusion tube (7) and feed it back to the control module (2). The control module (2) adjusts the rotation speed of the wheel (32) according to the pressure feedback.

6. The endoscopic expansion cavity suction dual-power interlock device as described in claim 1, characterized in that: The housing (1) includes a fan (10) and has heat dissipation holes (12). The fan starts simultaneously with the vacuum pump (4) or peristaltic pump (3) to blow air from inside the housing (1) to the outside of the heat dissipation holes.

7. The endoscopic expansion cavity suction dual-power interlock device as described in claim 3, characterized in that: The negative pressure suction tube (5) is located between the water inlet sensor (6) and the vacuum pump (4) and is equipped with a solenoid valve (13) controlled by the control module (2). When the water inlet sensor (6) transmits the water inlet signal to the control module (2), the control module (2) closes the solenoid valve (13) to prevent the negative pressure suction tube (5) from backflow.

8. The endoscopic expansion cavity suction dual-power interlock device as described in claim 1, characterized in that: It also includes a display screen (14) installed on the outer wall of the rotating wheel (32) on one side of the housing (1). The display screen (14) is connected to the control module (2) and can input control commands and display the operating status of the equipment.

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