Peristaltic pump with built-in rotating speed monitoring function and hot steam ablation equipment

Abstract

The utility model provides a peristaltic pump with built-in rotating speed monitoring and hot steam ablation equipment, the peristaltic pump comprises a pump head, a motor, a closed loop magnet and a sensor assembly, the motor is provided with a rotating shaft, the rotating shaft is connected with the pump head, and the rotating shaft rotates to drive the pump head to operate; the closed-loop magnet is arranged on the rotating shaft and rotates along with the rotating shaft; the sensor assembly is connected to the motor, the sensor assembly is provided with a closed-loop sensor, the closed-loop sensor is arranged close to the closed-loop magnet, and the closed-loop sensor is used for sensing the closed-loop magnet and outputting signals. According to the peristaltic pump used for the hot steam ablation equipment and provided with the built-in rotating speed monitoring device, the closed-loop sensor on the sensor assembly senses the closed-loop magnet and outputs a signal, so that the rotating speed of the motor of the peristaltic pump can be monitored in real time on external equipment, and whether the rotating speed of the peristaltic pump is correct or not is prompted and fed back; therefore, the use safety of the peristaltic pump is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a peristaltic pump with built-in rotation speed monitoring for a thermal steam ablation device and a thermal steam ablation device. Background Art

[0002] At present, peristaltic pumps are widely used in the medical device industry. In related technologies, there is a lack of effective monitoring means for the normal operation of peristaltic pumps. Only by whether a failure occurs to judge has a certain delay. It is impossible to timely and effectively feedback whether the rotation state of the peristaltic pump motor is normal, and whether the rotation speed is consistent with the setting or requirement, and give a prompt error message. There are medical hidden dangers, and seriously it will cause harm to the operator. Summary of the Utility Model

[0003] The utility model provides a peristaltic pump with built-in rotation speed monitoring for a thermal steam ablation device, which is used to solve the defect of lack of normal state monitoring of peristaltic pumps in the prior art, and realizes real-time monitoring of the rotation speed of the peristaltic pump motor to ensure the normal operation of the peristaltic pump.

[0004] The utility model provides a peristaltic pump with built-in rotation speed monitoring for a thermal steam ablation device, including:

[0005] A pump head;

[0006] A motor, the motor is provided with a rotating shaft, the rotating shaft is connected to the pump head, and the rotating shaft rotates to drive the pump head to operate;

[0007] A closed-loop magnet, the closed-loop magnet is arranged on the rotating shaft and rotates with the rotating shaft;

[0008] A sensor assembly, the sensor assembly is connected to the motor, the sensor assembly is provided with a closed-loop sensor, the closed-loop sensor is arranged adjacent to the closed-loop magnet, and the closed-loop sensor is used to sense the closed-loop magnet and output a signal.

[0009] According to the peristaltic pump with built-in rotation speed monitoring for a thermal steam ablation device provided by the utility model, the pump head is connected to the output end of the rotating shaft, the closed-loop magnet is connected to the tail end of the rotating shaft and rotates with the rotating shaft, and the closed-loop magnet is arranged opposite to the closed-loop sensor.

[0010] According to the peristaltic pump with built-in rotation speed monitoring for a thermal steam ablation device provided by the utility model, a groove is opened at the bottom of the motor, the opening of the groove faces the closed-loop sensor, the tail end of the rotating shaft passes through the groove, the closed-loop magnet is arranged at the tail end of the rotating shaft and corresponds to the closed-loop sensor.

[0011] A peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring according to the present utility model, there is a gap between the closed-loop sensor and the closed-loop magnet, and the gap is less than or equal to 0.5 mm.

[0012] A peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring according to the present utility model, the depth of the groove is 2 mm - 5 mm.

[0013] A peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring according to the present utility model, the closed-loop sensor includes a circuit board and a Hall element, the circuit board is electrically connected to an external terminal, the Hall element is arranged on the side of the circuit board facing the closed-loop magnet, and the Hall element is adjacent to the closed-loop magnet.

[0014] A peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring according to the present utility model, the sensor assembly includes a mounting seat and the closed-loop sensor, the mounting seat is installed at the bottom of the motor, and an installation cavity is formed between the mounting seat and the motor, and the circuit board is installed in the installation cavity.

[0015] A peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring according to the present utility model, the side wall of the mounting seat is provided with an opening.

[0016] A peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring according to the present utility model, the mounting seat is threadedly connected to the motor.

[0017] The present utility model also provides a thermal steam ablation device, including the peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring as described above.

[0018] A peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring according to the present utility model, the pump head is driven by a motor to operate, so as to realize the flow of the liquid in the delivery pipe. At the same time, a closed-loop magnet is arranged on the rotating shaft of the motor, and the closed-loop sensor on the sensor assembly senses the closed-loop magnet and outputs a signal, so that the rotational speed of the motor of the peristaltic pump can be monitored in real time by an external device, and it is prompted and feedback whether the rotational speed of the peristaltic pump is correct, so as to improve the use safety of the peristaltic pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description 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 efforts.

[0020] Figure 1It is a schematic structural diagram of a peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model.

[0021] Figure 2 It is a side view of a peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model.

[0022] Figure 3 Is Figure 2 The sectional view in the B direction in

[0023] Figure 4 Is Figure 3 The partial enlarged view at A in

[0024] Reference numerals:

[0025] 1, pump head;

[0026] 2, motor; 21, rotating shaft; 22, groove;

[0027] 3, closed-loop magnet;

[0028] 4, sensor assembly; 41, closed-loop sensor; 411, circuit board; 412, Hall element; 42, mounting seat; Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model fall within the protection scope of the present utility model.

[0030] The following will be combined with Figures 1-4 Describe the peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring of the present utility model.

[0031] The present utility model provides a peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring, including a pump head 1, a motor 2, a closed-loop magnet 3 and a sensor assembly 4. The motor 2 is provided with a rotating shaft 21, the rotating shaft 21 is connected to the pump head 1, and the rotating shaft 21 rotates to drive the pump head 1 to operate; the closed-loop magnet 3 is arranged on the rotating shaft 21 and rotates with the rotating shaft 21; the sensor assembly 4 is connected to the motor 2, the sensor assembly 4 is provided with a closed-loop sensor 41, the closed-loop sensor 41 is arranged adjacent to the closed-loop magnet 3, and the closed-loop sensor 41 is used to sense the closed-loop magnet 3 and output a signal.

[0032] A peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model drives the pump head 1 to operate through the motor 2, realizing the flow of liquid in the delivery pipe. At the same time, a closed-loop magnet 3 is provided on the rotating shaft 21 of the motor 2. The closed-loop sensor 41 on the sensor assembly 4 senses the closed-loop magnet 3 and outputs a signal, so that the rotational speed of the motor 2 of the peristaltic pump can be monitored in real time by an external device, and it can be prompted and fed back whether the rotational speed of the peristaltic pump is correct, so as to improve the use safety of the peristaltic pump.

[0033] It can be understood that in the specific application scenario of detecting the rotational speed of the rotating shaft 21, the closed-loop magnet 3 is installed on the rotating shaft 21 of the motor 2. When the rotating shaft 21 of the motor 2 rotates, the closed-loop magnet 3 will rotate accordingly. When these closed-loop magnets 3 alternately pass by the closed-loop sensor 41 fixed beside, a changing magnetic field will be generated in the closed-loop sensor 41, resulting in a change in the Hall voltage. The closed-loop sensor 41 converts these changes into electrical signals and outputs a pulse signal, the frequency of which is proportional to the rotational speed. By calculating the number of pulses received per unit time, the rotational speed of the motor 2 can be determined.

[0034] Please refer to Figure 3 and Figure 4 , for a peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model, the pump head 1 is connected to the output end of the rotating shaft 21, the closed-loop magnet 3 is connected to the tail end of the rotating shaft 21 and rotates with the rotating shaft 21, and the closed-loop magnet 3 and the closed-loop sensor 41 are arranged oppositely.

[0035] It can be understood that in order not to interfere with the operation of the motor 2 driving the pump head 1, the closed-loop magnet 3 is arranged at the tail end of the rotating shaft 21. That is to say, one end of the rotating shaft 21 is the output end for connecting the pump head 1 to perform related work. The other end of the rotating shaft 21 is the tail end, which has more installation space to install structures such as the closed-loop magnet 3 and the sensor assembly 4, rationally utilizing the installation space to facilitate the monitoring of the rotational speed of the rotating shaft 21. The rotating shaft 21 of the motor 2 can extend out of the motor 2 body at both ends, so as to facilitate connecting the pump head 1 at one end and facilitating the closed-loop sensor 41 to monitor the rotational speed at the other end. Exemplarily, the sensor assembly 4 can be erected on the tail surface of the motor 2, so that the closed-loop sensor 41 can correspond to the closed-loop magnet 3 for induction, improving the induction accuracy.

[0036] For a peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model, a groove 22 is opened at the bottom of the motor 2, the opening of the groove 22 faces the closed-loop sensor 41, the tail end of the rotating shaft 21 passes through the groove 22, and the closed-loop magnet 3 is arranged at the tail end of the rotating shaft 21 and corresponds to the closed-loop sensor 41.

[0037] It can be understood that the end of the rotating shaft 21 is received in the groove 22 and does not protrude from the bottom surface of the motor 2. The groove 22 can play a certain protective role to prevent other components from interfering with the rotation of the rotating shaft 21, thereby avoiding situations such as collision damage. Exemplarily, the closed-loop sensor 41 is mounted on the bottom surface of the motor 2 to cover the notch of the groove 22. At the same time, the closed-loop magnet 3 is sleeved on the end of the rotating shaft 21 and is adjacent to the notch of the groove 22, so that the closed-loop sensor 41 and the closed-loop magnet 3 are close to each other to improve the induction accuracy. Optionally, the shape of the groove 22 can be cylindrical to adapt to the rotation of the rotating shaft 21. At the same time, the closed-loop magnet 3 can be annular to facilitate sleeving on the rotating shaft 21 and rotating with the rotating shaft 21. The size of the groove 22 can accommodate the closed-loop magnet 3 sleeved on the rotating shaft 21 and can rotate with the rotating shaft 21 in the groove 22 without touching the inner wall of the groove 22.

[0038] According to a peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model, there is a gap between the closed-loop sensor 41 and the closed-loop magnet 3, and the gap is less than or equal to 0.5 mm. It can be understood that the size of the gap between the closed-loop sensor 41 and the closed-loop magnet 3 easily affects the induction accuracy of the sensor. When the gap is less than or equal to 0.5 mm, such as 0.3 mm or 0.4 mm, etc., its induction accuracy is generally higher, but the installation difficulty generally also increases. According to the different induction accuracies of different closed-loop sensors 41, the installation gaps required during installation are also different. The installation distance and angle between the closed-loop sensor 41 and the closed-loop magnet 3 also affect the detection effect. Appropriate installation distance and angle can maximize the magnetic field effect of the closed-loop magnet 3 and enable the closed-loop sensor 41 to obtain the best signal output. The gap between the closed-loop sensor 41 and the closed-loop magnet 3 is not limited herein, as long as the gap is less than or equal to 0.5 mm.

[0039] According to a peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model, the depth of the groove 22 is 2 mm - 5 mm. It can be understood that the size of the closed-loop magnet 3 directly determines the magnetic field strength it generates. A larger closed-loop magnet 3 can generate a stronger magnetic field, enabling the closed-loop sensor 41 to more clearly detect the change in the magnetic field, thereby improving the detection sensitivity and accuracy. A deeper groove 22 can accommodate a larger closed-loop magnet 3. Combining with the installation distance between the closed-loop sensor 41 and the closed-loop magnet 3, the depth of the groove 22 can be 3 mm to install a closed-loop magnet 3 of a suitable size, so as to adapt to and complete the monitoring of the rotational speed of the rotating shaft 21.

[0040] According to a peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model, the closed-loop sensor 41 includes a circuit board 411 and a Hall element 412. The circuit board 411 is electrically connected to an external terminal. The Hall element 412 is disposed on one side of the circuit board 411 facing the closed-loop magnet 3, and the Hall element 412 is adjacent to the closed-loop magnet 3.

[0041] It can be understood that the circuit board 411 is mounted on the bottom of the motor 2, such that one side of the circuit board 411 faces the closed-loop magnet 3. The Hall element 412 is soldered on the side of the circuit board 411 facing the closed-loop magnet 3, and it is only necessary for the Hall element 412 to be adjacent to the closed-loop magnet 3. In this way, the circuit board 411 is connected to the external terminal for feedback, enabling the staff to monitor the rotational speed of the rotating shaft 21 in real time at the external terminal, ensuring that the rotational speed of the rotating shaft 21 is within the normal range. In this way, it is determined whether the rotational speed of the motor 2 is consistent with the setting and whether there is a jam. If the rotational speed is abnormal, a prompt feedback can be given at the external terminal, so that the staff can take relevant measures in a timely manner. Of course, when the detected rotational speed is abnormal, the peristaltic pump can also be controlled to stop in time.

[0042] According to a peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model, the sensor assembly 4 includes a mounting seat 42 and a closed-loop sensor 41. The mounting seat 42 is mounted on the bottom of the motor 2, and an installation cavity is formed between the mounting seat 42 and the motor 2. The circuit board 411 is mounted in the installation cavity.

[0043] To facilitate the fixation of the closed-loop sensor 41, the mounting seat 42 is connected and fixed to the bottom of the motor 2 to carry the closed-loop sensor 41. The mounting seat 42 covers the bottom of the motor 2 and is connected to the bottom surface of the motor 2, thereby forming an installation cavity. The circuit board 411 can be first mounted in the mounting seat 42, and then the mounting seat 42 is connected to the bottom surface of the motor 2, such that the circuit board 411 is accommodated and limited in the installation cavity to avoid loosening.

[0044] Please refer to Figure 1 and Figure 3 , according to a peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model, the side wall of the mounting seat 42 is provided with an opening. It can be understood that the side wall of the mounting seat 42 can be made with a hollowed-out setting to facilitate the wiring of the circuit board 411 to connect to external devices.

[0045] A peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring provided by the present utility model, the mounting seat 42 is threadedly connected to the motor 2. Specifically, a first threaded hole is provided on the bottom surface of the motor 2, and a second threaded hole is provided on the mounting seat 42. Screws are sequentially passed through the second threaded hole and the first threaded hole to connect the mounting seat 42 and the motor 2. The number of the first threaded hole and the second threaded hole can be multiple. For example, three first threaded holes are provided on the bottom surface of the motor 2, and the three first threaded holes are arranged in a triangular pattern around the circumference of the groove 22. At the same time, three second threaded holes corresponding to the three first threaded holes are provided on the mounting seat 42, so that the mounting seat 42 is connected and fixed to the bottom of the motor 2 through three screws, improving the connection stability.

[0046] The present utility model also provides a thermal steam ablation device, including the above-mentioned peristaltic pump for a thermal steam ablation device with built-in rotational speed monitoring. It can be understood that the thermal steam ablation device includes a device main body and the peristaltic pump, and the peristaltic pump is installed in the device main body.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A peristaltic pump with built-in speed monitoring for thermal steam ablation equipment, characterized in that: include: Pump head; A motor, wherein the motor is provided with a rotating shaft, the rotating shaft is connected to the pump head, and the rotating shaft rotates to drive the pump head to operate; A closed-loop magnet, the closed-loop magnet is disposed on the rotating shaft and rotates with the rotating shaft; A sensor assembly is connected to the motor, the sensor assembly is provided with a closed-loop sensor, the closed-loop sensor is arranged adjacent to the closed-loop magnet, and the closed-loop sensor is used to sense the closed-loop magnet and output a signal.

2. The peristaltic pump with built-in speed monitoring for thermal steam ablation equipment according to claim 1, characterized in that: The pump head is connected to the output end of the rotating shaft, the closed-loop magnet is connected to the tail end of the rotating shaft and rotates with the rotating shaft, and the closed-loop magnet is arranged opposite to the closed-loop sensor.

3. The peristaltic pump with built-in speed monitoring for thermal steam ablation equipment according to claim 2, characterized in that: A groove is provided at the bottom of the motor, the opening of the groove is arranged toward the closed-loop sensor, the tail end of the rotating shaft is inserted into the groove, and the closed-loop magnet is arranged at the tail end of the rotating shaft and corresponds to the closed-loop sensor.

4. The peristaltic pump with built-in speed monitoring for thermal steam ablation equipment according to claim 3, characterized in that: There is a gap between the closed-loop sensor and the closed-loop magnet, and the gap is less than or equal to 0.5 mm.

5. The peristaltic pump with built-in speed monitoring for thermal steam ablation equipment according to claim 3, characterized in that: The depth of the groove is 2mm-5mm.

6. A peristaltic pump for thermal steam ablation equipment with built-in speed monitoring according to any one of claims 1 to 5, characterized in that: The closed-loop sensor includes a circuit board and a Hall element. The circuit board is electrically connected to an external terminal. The Hall element is arranged on a side of the circuit board facing the closed-loop magnet, and the Hall element is adjacent to the closed-loop magnet.

7. The peristaltic pump with built-in speed monitoring for thermal steam ablation equipment according to claim 6, characterized in that: The sensor assembly comprises a mounting seat and the closed-loop sensor. The mounting seat is mounted at the bottom of the motor and forms a mounting cavity with the motor. The circuit board is mounted in the mounting cavity.

8. The peristaltic pump with built-in speed monitoring for thermal steam ablation equipment according to claim 7, characterized in that: The side wall of the mounting seat is provided with an opening.

9. The peristaltic pump with built-in speed monitoring for thermal steam ablation equipment according to claim 7, characterized in that: The mounting seat is threadedly connected to the motor.

10. A thermal steam ablation device, characterized in that: The invention comprises a peristaltic pump for a thermal vapor ablation device and having a built-in rotation speed monitoring as claimed in any one of claims 1 to 9.

Images