Peristaltic pump of medical equipment and steam ablation equipment

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to a peristaltic pump of medical equipment and steam ablation equipment. Wherein the peristaltic pump comprises: a motor comprising an output shaft; the fixing base is fixed to the motor, the fixing base is provided with an installation groove body of the conveying pipe, the fixing base is provided with a rolling wheel used for adjusting the flow of the conveying pipe, and the rolling wheel is dynamically coupled with the output shaft; the movable cover is movably connected to the fixed seat so as to be switched between a buckling position and an opening position, the movable cover is buckled to the mounting groove body and fixes the conveying pipe at the buckling position, and the conveying pipe is suitable for being disassembled and assembled at the opening position; and the position sensor is mounted on the fixed seat or the motor and is used for detecting the position of the movable cover. According to the peristaltic pump, the motor can be started to drive the peristaltic pump only when the movable cover is located at the buckling position, namely the conveying pipe is fixed, so that the working reliability of the peristaltic pump is guaranteed, operation faults caused by human factors in the operation process are avoided, and the use safety of the peristaltic pump is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, relate to a kind of peristaltic pump and steam ablation equipment of medical equipment. BACKGROUND

[0002] The peristaltic pump used in current medical equipment, after the delivery pipe is installed to the fixed seat, manually fastens the movable cover to the fixed seat, then starts the peristaltic pump. However, it may exist to drive the peristaltic pump in the case where forgetting to fasten the movable cover in practice, thereby causing fluid to be unable to be transmitted, resulting in operation failure to cause function to be unable to be realized. SUMMARY

[0003] The utility model provides a kind of peristaltic pump of medical equipment, to solve the defect of forgetting to fasten movable cover in the operation in prior art, realize the reliability of peristaltic pump work.

[0004] The utility model also provides a kind of steam ablation equipment.

[0005] The utility model embodiment provides a kind of peristaltic pump of medical equipment, comprising:

[0006] Motor, including output shaft;

[0007] Fixed seat, fixed to the motor, the fixed seat is provided with the installation groove of delivery pipe, and the fixed seat is provided with the roller for adjusting the flow of the delivery pipe, the roller and the output shaft power coupling;

[0008] Movable cover, movably connected to the fixed seat, to switch between fastening position and opening position, in the fastening position, the movable cover is fastened to the installation groove and fixes the delivery pipe, in the opening position, the delivery pipe is suitable for disassembly and assembly;

[0009] Position sensor, installed on the fixed seat or motor, for detecting the position of the movable cover.

[0010] According to the embodiment of the application, by setting position sensor on motor or fixed seat, the position of movable cover can be detected, and then it is ensured that only when movable cover is in fastening position, i.e. the delivery pipe is fixed, the motor can be started to drive the peristaltic pump, to ensure the reliability of peristaltic pump work, avoid operation failure in operation caused by human, improve the safety of peristaltic pump use.

[0011] According to the peristaltic pump of medical equipment provided by the utility model, the position sensor is a hall sensor, the movable cover is provided with a first magnetic member, and the magnetic member and the hall sensor are oppositely arranged in the fastening position.

[0012] The utility model provides a kind of peristaltic pump of medical equipment, the motor includes shell, the Hall sensor is fixed in the side wall of the shell by fixed plate, the Hall sensor connects cable, the cable is from the fixed plate and the fixed seat one end away from it.

[0013] The utility model provides a kind of peristaltic pump of medical equipment, the motor includes shell and the shaft in the shell, the end of the shaft is fixed with second magnetic piece, the circuit board is set to the second magnetic piece outside the shell, the circuit board detects the rotating speed of the shaft by the second magnetic piece.

[0014] The utility model provides a kind of peristaltic pump of medical equipment, the peristaltic pump of medical equipment further includes:

[0015] Hatch, install in the end of the shell, to form the accommodation cavity between the shell and the hatch, the circuit board is fixed in the accommodation cavity.

[0016] The utility model provides a kind of peristaltic pump of medical equipment, the second magnetic piece is relatively the end plate in the shell.

[0017] The utility model provides a kind of peristaltic pump of medical equipment, the second magnetic piece is relatively the end plate 0.1mm-0.3mm in the shell.

[0018] The utility model provides a kind of peristaltic pump of medical equipment, the motor is provided with temperature sensor,

[0019] And / or, the peristaltic pump of medical equipment further includes display, and the display is used to show the working condition of the peristaltic pump of medical equipment.

[0020] The utility model provides a kind of peristaltic pump of medical equipment, the peristaltic pump of medical equipment further includes prompter, the prompter is based on the position sensor detection the active lid is in the open position control the motor is closed,

[0021] Or, when the motor is provided with temperature sensor, the prompter is based on the temperature detector detected temperature exceeds set temperature control the motor is closed,

[0022] Or, when the peristaltic pump of medical equipment includes second magnetic piece and circuit board, the prompter is based on the circuit board detects the rotating speed of the motor is unusual, adjusts the rotating speed of the motor.

[0023] The utility model provides a kind of steam ablation equipment, it includes:

[0024] The peristaltic pump of medical equipment described above;

[0025] A steam generator is used to provide steam into the delivery pipe of the peristaltic pump.

[0026] According to the steam ablation device, the peristaltic pump of the medical device is used, and all technical effects of the peristaltic pump of the medical device are achieved, which will not be described herein. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 is a structural schematic view of the peristaltic pump of the medical device provided by the present application.

[0029] Figure 2 is a pre-installation schematic view of the delivery pipe in the peristaltic pump of the medical device provided by the present application.

[0030] Figure 3 is an assembly schematic view of the first magnetic member on the fixing seat provided by the present application.

[0031] Figure 4 is one of the structural schematic views of the movable cover provided by the present application.

[0032] Figure 5 is the second structural schematic view of the movable cover provided by the present application.

[0033] Figure 6 is an installation schematic view of the delivery pipe on the second seat body provided by the present application.

[0034] Figure 7 is an installation schematic view of the delivery pipe on the first seat body and the second seat body provided by the present application.

[0035] Figure 8 is an installation schematic view of the second magnetic member on the motor provided by the present application.

[0036] REFERENCE NUMERALS

[0037] 100, motor; 110, output shaft; 120, shell; 121, end plate; 130, circuit board; 140, second magnetic member; 150, hatch cover; 151, accommodating cavity;

[0038] 200, fixed seat; 210, mounting groove body; 220, first seat body; 221, avoiding hole; 222, pin shaft; 230, second seat body; 240, third seat body; 250, spring; 260, mounting cavity;

[0039] 300, movable cover; 310, mounting hole;

[0040] 400, conveying pipe;

[0041] 500, position sensor;

[0042] 600, first magnetic member;

[0043] 700, fixed plate; 710, fixed hole; 720, support bin; 730, through hole;

[0044] 800, cable. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0046] In view of the current medical staff may forget to fix the conveying pipe to start the peristaltic pump, the embodiment of the application provides a peristaltic pump of medical equipment (hereinafter referred to as peristaltic pump), please see Figure 1 , comprising motor 100, fixed seat 200, movable cover 300 and position sensor 500. Wherein, the motor 100 includes output shaft 110; the fixed seat 200 is fixed to the motor 100, the fixed seat 200 is provided with the mounting groove body 210 of the conveying pipe 400, and the fixed seat 200 is provided with a roller (not shown in the figure), the flow of the fluid in the conveying pipe 400 is adjusted through the roller. Wherein, the cooperation between the roller of the peristaltic pump and the conveying pipe 400 can realize high-precision quantitative delivery. In combination with Figure 2The roller is power-coupled with the output shaft 110, so as to adjust the rotating speed of the roller under the driving of the output shaft 110, and to achieve the purpose of adjusting the flow in the conveying pipe 400. The movable cover 300 is movably connected with the fixed seat 200, so as to switch between the buckling position and the opening position. When the movable cover 300 is in the buckling position, the movable cover 300 fixes the conveying pipe 400 between the movable cover 300 and the fixed seat 200. When the movable cover 300 is in the opening position, the conveying pipe 400 can be disassembled. The position sensor 500 is installed on the fixed seat 200 or the motor 100, so that the position sensor 500 can detect the position of the movable cover 300 when the position of the movable cover 300 is switched.

[0047] Figure 1 and Figure 2 The movable cover 300 is rotatably connected with the fixed seat 200 through the pin shaft 222. The movable cover 300 is flipped downward to the buckling position to fix the conveying pipe 400 on the fixed seat 200. Obviously, the connection relationship between the movable cover 300 and the fixed seat 200 is not limited to the example, for example, the movable cover 300 and the fixed seat 200 can also be connected through a linear motion mechanism, for example, the linear motion mechanism can include a sliding block and a guide rail arranged between the movable cover 300 and the fixed seat 200.

[0048] According to the embodiment of the present application, the position of the movable cover 300 can be detected by arranging the position sensor 500 on the motor 100 or the fixed seat 200, so as to ensure that the motor 100 can be started only when the movable cover 300 is in the buckling position, that is, when the conveying pipe 400 is fixed, and to ensure the reliability of the peristaltic pump, to avoid the operation failure caused by human in the operation process, and to improve the safety of the peristaltic pump.

[0049] The position sensor 500 detects the position of the movable cover 300, rather than directly detecting the position of the conveying pipe 400. In the operation process of the medical equipment, the medical staff generally places the conveying pipe 400 in the set position (corresponding to the installation groove 210 in the present application) first, and then starts the peristaltic pump. If the peristaltic pump is started only when the conveying pipe 400 is detected in the set position, the position of the conveying pipe 400 can not be stable, and the conveying pipe 400 can also fall off from the set position in the working process. In the present application, since the position of the movable cover 300 is detected, when the medical staff places the conveying pipe 400 in the set position, the peristaltic pump can be started once the position sensor 500 detects that the movable cover 300 is in the buckling position, so as to ensure the reliability of the peristaltic pump.

[0050] Wherein, in order to control the start and stop of the motor 100 based on the position of the position sensor 500, only one level conversion circuit is needed, which outputs high or low level based on the received position detection signal such as electromagnetic signal or photoelectric signal, and controls the state of the motor 100 based on different level output. Or, here the detection signal of the position sensor 500 can also be obtained as a trigger signal through hardware structures such as transistors, field effect tubes, relays or optocouplers, and the start and stop of the motor 100 is controlled based on the signal control of the on-off of itself.

[0051] In the embodiment of the application, the position sensor 500 can be a Hall sensor, and a first magnetic member 600 is arranged on the movable cover 300, please refer to Figure 3 In the buckling position, the magnetic member and the Hall sensor are arranged opposite. Then the position of the magnet is sensed by the Hall sensor to detect the position of the movable cover 300. The first magnetic member 600 here can be an inductive magnet. Of course, the type of the position sensor 500 here is not limited, in addition to using a Hall sensor, a pressure sensor can also be used, when the movable cover 300 is covered to the fixed seat 200, the movable cover 300 and the fixed seat 200 are in contact and a certain pressure is generated. Alternatively, the position sensor 500 can also use a photoelectric sensor or an ultrasonic sensor, and the specific type is not limited, which is not exemplified here.

[0052] Figure 4 In the embodiment of the application, the first magnetic member 600 is fixed to the mounting hole 310 at the edge position of the movable cover 300. In order to ensure the accuracy of detection and prevent the first magnetic member 600 from being worn, the first magnetic member 600 is flush with the edge of the mounting hole 310. Here, the mounting hole 310 corresponds to the edge position of the movable cover 300, the position of the Hall sensor corresponds to the first magnetic member 600, and then the position of the Hall sensor is also located at the edge position of the peristaltic pump, which is not easy to interfere with other components and is convenient for wiring.

[0053] In the embodiment of the application, the mounting groove 210 can be used to pre-install the conveying pipe 400. Please refer to Figure 2 The mounting groove 210 can be arranged on the opposite sides of the fixed seat 200, and then the conveying pipe 400 is fixed to the two mounting grooves 210, and the conveying pipe 400 between the two mounting grooves 210 can be in contact with the roller. Figure 2 and Figure 3The fixed seat 200 can include a first seat body 220 and a second seat body 230 which are buckled to each other, and a mounting cavity 260 of the roller is formed between the first seat body 220 and the second seat body 230 to facilitate the disassembly and assembly of the roller. The mounting groove body 210 is connected to the first seat body 220 and the second seat body 230 through the spring 250, so that when the movable cover 300 is closed, the movable cover 300 will not hard contact the conveying pipe 400, thereby protecting the conveying pipe 400 and avoiding the breakage of the conveying pipe 400.

[0054] The structure of the fixed seat 200 can be further Figure 2 In addition to including the first seat body 220 and the second seat body 230, the fixed seat 200 further includes a third seat body 240, wherein the first seat body 220 is fixed to the third seat body 240, the second seat body 230 is fixed to the first seat body 220, and the movable cover 300 is installed on the first seat body 220 and can rotate relative to the first seat body 220. The structure of the fixed seat 200 and the movable cover 300 can be further referred to Figures 5 to 7 .

[0055] In combination Figure 2 The output shaft 110 of the motor 100 extends from the avoiding hole 221 in the middle of the fixed seat 200, the output shaft 110 is connected to the roller, and the conveying pipe 400 is divided along one side edge of the avoiding hole 221 in the fixed seat 200, and the conveying pipe 400 is in a smooth arc shape.

[0056] Please refer to Figure 1 and Figure 2 The motor 100 includes a housing 120, the Hall sensor is fixed to the side wall of the housing 120 through the fixed plate 700, the Hall sensor is connected to the cable 800, and the cable 800 is drawn out from the end of the fixed plate 700 away from the fixed seat 200. Here, the Hall sensor is fixed to the housing 120, which is convenient for disassembly and assembly and facilitates wiring, and there is no interference between the Hall sensor and other components. The fixed plate 700 is formed with a support bin 720 of the Hall sensor, and a through hole 730 for passing the cable is arranged at the bottom of the support bin 720. A plurality of fixed holes 710 are formed in the fixed plate 700, and a threaded member is passed through the fixed hole 710 to fix the Hall sensor to the housing 120 of the motor 100. Of course, the fixing mode of the Hall sensor is not limited by the example herein, and the Hall sensor can also be fixed by adhesion, welding, etc.

[0057] The motor 100 includes the housing 120 mentioned above, and further includes a rotating shaft (not shown in the figure) located in the housing 120. The rotating speed of the rotating shaft determines the conveying speed of the fluid in the conveying pipe 400, and whether the rotating speed of the motor 100 is consistent with the set requirement is often subject to errors and delays through human judgment, which may cause harm to the operator in serious cases and has a medical risk. In the embodiment of the present application, please refer to Figure 8The second magnetic member 140 is fixed at the end of the rotating shaft, and the second magnetic member 140 is combined with the end plate of the shell 120 Figure 1 The circuit board 130 is arranged outside the shell 120 and corresponds to the second magnetic member 140. The circuit board 130 detects the rotating speed of the rotating shaft through the second magnetic member 140 to determine whether the rotating speed of the motor 100 is consistent with the setting or whether the motor 100 is blocked. When the rotating speed of the motor 100 is detected to be abnormal, the motor 100 can be controlled to stop or the rotating speed can be adjusted to obtain a required rotating speed. The magnetic encoder can be arranged in the circuit board 130, the rotating speed of the second magnetic member 140 is determined by measuring the change of the magnetic field, and then the rotating speed of the rotating shaft is determined. In addition, the second magnetic member 140 can be but is not limited to a closed loop magnet, which is fixed radially at the tail end of the rotating shaft.

[0058] According to the embodiment of the present application, please refer to Figure 1 The peristaltic pump of the medical device further includes a cover 150 mounted at the end of the shell 120 to form a containing cavity 151 between the shell 120 and the cover 150, and the circuit board 130 is fixed in the containing cavity 151. The cover 150 can facilitate the disassembly and maintenance of the second magnetic member 140 and the circuit board 130, and can also protect the circuit board 130. The cover 150 can be but is not limited to fixed to the shell 120 of the motor 100 by screws.

[0059] According to the embodiment of the present application, the second magnetic member 140 is recessed in the end plate of the shell 120. The second magnetic member 140 is recessed in the end plate, which can protect the second magnetic member 140 and ensure that a necessary distance is reserved between the second magnetic member 140 and the circuit board 130. The size of the distance directly affects the detection accuracy of the circuit board 130 to the change of the magnetic field of the second magnetic member 140. If the distance is too large, the magnetic field strength can be weakened, so that the circuit board 130 cannot accurately detect the change of the magnetic field, thereby reducing the system accuracy. If the distance is too small, the stability and service life of the structure can be affected. In the embodiment of the present application, the second magnetic member 140 is recessed in the end plate by 0.1mm-0.3mm, so as to ensure the anti-interference ability of the structure and the accuracy of detection.

[0060] In addition, the temperature of the motor 100 indirectly reflects whether the current function of the motor 100 is normal (not shown in the figure). If the temperature of the motor 100 is abnormal, it is easy to make the motor 100 heat up or even burn out, resulting in the loss of the peristaltic pump function or even the inability to implement the surgery. On this basis, in the embodiment of the present application, a temperature sensor is arranged on the motor 100, the temperature of the motor 100 is detected by the temperature sensor, and the detected result is sent to the main control board of the motor 100, and then the motor 100 is controlled to start and stop based on the temperature of the motor 100. Wherein, a critical temperature value can be preset, the critical temperature value here can be a temperature value not exceeding 100 degrees Celsius, and then when the temperature sensor detects that the actual temperature exceeds the critical temperature value, the main control board will control the motor 100 to stop working and output an abnormal signal. The main control board here can be the circuit board 130 mentioned above, that is, the main control board integrates the function of controlling the motor 100 to start and stop based on the temperature of the motor 100, and the function of controlling the motor 100 to start and stop based on the rotating speed of the motor 100. In addition, the main control board can also integrate the function of controlling the motor 100 to start and stop based on the position information of the movable cover 300.

[0061] According to the embodiment of the present application, the peristaltic pump of the medical device further comprises a display (not shown in the figure), which is used to display the working state of the peristaltic pump of the medical device, including the temperature of the motor 100, the rotating speed of the motor 100, etc., so that the medical staff can intuitively obtain the information of the peristaltic pump and make correct operation.

[0062] According to the embodiment of the present application, a medical device is also provided, which comprises the above-mentioned peristaltic pump and further comprises a device for conveying fluid to the conveying pipe 400 of the peristaltic pump. Wherein, when the medical device is a steam ablation device, the steam generator is used to convey fluid to the conveying pipe 400.

[0063] The working principle of the steam ablation device of the embodiment of the present application will be further described below in combination with the drawings:

[0064] The peristaltic pump is connected with the main control board (control PCB) and can interact with the upper layer system through a 24V power supply and a CAN bus interface. The signal control and feedback between the peristaltic pump and the upper layer system are input and output through the CAN bus. The motor 100 of the peristaltic pump is a stepping motor, which includes an H-bridge drive. The position of the movable cover 300 detected by the position sensor 500 (corresponding to the closed switch detection in the drawing), the rotating speed of the motor 100 detected by the circuit board 130, and the temperature of the motor 100 detected by the temperature sensor can all be input to the main control board through the CAN bus. The main control board controls the above-mentioned parameters to realize the signal command of the speed loop (the "speed" here refers to the rotating speed of the motor 100), the current loop (the "current" here refers to the temperature of the motor 100), and the position loop (the "position" here refers to the position of the movable cover 300), and generates a control signal output to realize the control of the H-bridge drive of the stepping motor 100. Among them, the speed loop and the current loop control each other, and the position loop unidirectionally influences the control of the speed loop.

[0065] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part 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 embodiments of the present application.

Claims

1. A peristaltic pump for a medical device, characterized in that, include: Motor (100), including output shaft (110); A fixed base (200) is fixed to the motor (100). The fixed base (200) is provided with a mounting groove (210) for the conveying pipe (400), and the fixed base (200) is provided with a roller for adjusting the flow rate of the conveying pipe (400). The roller and the output shaft (110) are dynamically coupled. A movable cover (300) is movably connected to the fixed base (200) to switch between a snap-fit ​​position and an open position. In the snap-fit ​​position, the movable cover (300) snaps into the mounting groove (210) and fixes the delivery pipe (400). In the open position, the delivery pipe (400) is adapted to be disassembled and reassembled. A position sensor (500), mounted on the fixed base (200) or the motor (100), is used to detect the position of the movable cover (300).

2. The peristaltic pump of the medical device according to claim 1, characterized in that, The position sensor (500) is a Hall sensor, and the movable cover (300) is provided with a first magnetic element (600). In the fastened position, the magnetic element and the Hall sensor are arranged opposite to each other.

3. The peristaltic pump of the medical device according to claim 2, characterized in that, The motor (100) includes a housing (120), the Hall sensor is fixed to the side wall of the housing (120) by a fixing plate (700), and the Hall sensor is connected by a cable (800) that passes through one end of the fixing plate (700) away from the fixing base (200).

4. The peristaltic pump of the medical device according to claim 1, characterized in that, The motor (100) includes a housing (120) and a rotating shaft located inside the housing (120). A second magnetic element (140) is fixed to the end of the rotating shaft. A circuit board (130) is provided on the outside of the housing (120) corresponding to the second magnetic element (140). The circuit board (130) detects the rotational speed of the rotating shaft through the second magnetic element (140).

5. The peristaltic pump of the medical device according to claim 4, characterized in that, The peristaltic pump of the medical device also includes: A hatch (150) is installed at the end of the housing (120) to form a receiving cavity (151) between the housing (120) and the hatch (150), and the circuit board (130) is fixed in the receiving cavity (151).

6. The peristaltic pump of the medical device according to claim 4, characterized in that, The second magnetic element (140) is recessed relative to the end plate (121) of the housing (120).

7. The peristaltic pump of the medical device according to claim 6, characterized in that, The second magnetic element (140) is recessed 0.1mm-0.3mm relative to the end plate.

8. The peristaltic pump of the medical device according to any one of claims 1 to 7, characterized in that, The motor (100) is equipped with a temperature sensor. And / or, the peristaltic pump of the medical device further includes a display for displaying the operating status of the peristaltic pump of the medical device.

9. The peristaltic pump of the medical device according to any one of claims 1 to 7, characterized in that, The peristaltic pump of the medical device also includes an indicator that controls the motor (100) to close based on the position sensor (500) detecting that the movable cover (300) is in the open position. Alternatively, when the motor (100) is equipped with a temperature sensor, the indicator controls the motor (100) to shut down based on the temperature detected by the temperature sensor exceeding a set temperature. Alternatively, when the peristaltic pump of the medical device includes a second magnetic element (140) and a circuit board (130), the indicator detects an abnormal rotational speed of the motor based on the circuit board (130) and adjusts the rotational speed of the motor (100).

10. A steam ablation device, characterized in that, include: The peristaltic pump of the medical device according to any one of claims 1 to 9; A steam generator is used to supply steam into the delivery pipe (400) of the peristaltic pump.

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