Filling pump capable of switching pressure detection range

Abstract

The utility model discloses a filling pump capable of switching a pressure detection range. The filling pump comprises a pump body, a water inlet fixing piece arranged on the pump body, a water outlet fixing piece arranged on the pump body, a guiding shaft which is arranged on the pump body and is of a columnar structure, and a thin film pressure sensor assembly arranged on the water outlet fixing piece. The thin film pressure sensor assembly comprises at least two thin film pressure sensors and sensor isolation blocks for isolating the adjacent thin film pressure sensors, and the sensor isolation block close to the inner side is tightly attached to the water outlet. The large-range detection requirement is met through the thin film pressure sensor assembly composed of the thin film pressure sensor and the sensor isolation block, and the purposes of improving the adjustability of the detection range of the filling pump and improving the use universality of the filling pump are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production application field of perfusion pump, concretely relates to a perfusion pump with switchable pressure detection range. BACKGROUND

[0002] The perfusion pump plays a vital role in the operation process of an endoscope, and the pressure detection of the traditional perfusion pump is single range, and because the required flow and pressure are different in the small space and the large space of the surgical cavity, many machines are differentiated by model, that is, pressure measurement range, and cannot be used for multiple devices, reducing the versatility of the perfusion pump.

[0003] The information disclosed in this BACKGROUND section is only for the purpose of enhancing the understanding of the background of the utility model and should not be treated as acknowledging that this information forms prior art that is already known to those skilled in the art. SUMMARY

[0004] To solve the above technical problems, the utility model provides a perfusion pump with switchable pressure detection range to improve the adjustability of the detection range of the perfusion pump and the versatility of the perfusion pump.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A perfusion pump with switchable pressure detection range comprises a pump body, a water inlet fixing piece arranged on the pump body, a water outlet fixing piece arranged on the pump body, a guide shaft in a columnar structure arranged on the pump body, and a thin film pressure sensor assembly arranged on the water outlet fixing piece.

[0007] The bottom surface of the guide shaft is arranged vertically, the water inlet of the water pipe is clamped on the water inlet fixing piece, and the other end of the water pipe passes around the guide shaft and is clamped into the water outlet fixing piece.

[0008] The thin film pressure sensor assembly comprises at least two thin film pressure sensors and a sensor isolation block for separating adjacent thin film pressure sensors, and the sensor isolation block close to the inner side is arranged close to the water outlet.

[0009] The utility model realizes wide-range detection requirements through the thin film pressure sensor assembly composed of thin film pressure sensors and sensor isolation blocks, and achieves the purposes of improving the adjustability of the detection range of the perfusion pump and the versatility of the perfusion pump.

[0010] As a preferred, the water outlet fastener is provided with a silica gel film.

[0011] As preferred, the thin film pressure sensor assembly is mounted at the water outlet fixing member by an adjusting screw.

[0012] The utility model has the advantages of the following:

[0013] 1. The utility model discloses a thin film pressure sensor assembly which is composed of a thin film pressure sensor and a sensor isolation block to realize wide-range detection requirements, and the adjustability of the detection range of the perfusion pump is improved, and the use versatility of the perfusion pump is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced.

[0015] Figure 1 The utility model discloses a perfusion pump of switchable pressure detection range's structure diagram for the embodiment of the utility model;

[0016] Figure 2 For Figure 1 The middle A-A section schematic view;

[0017] The corresponding component name represented by the figure number and letter in the drawing:

[0018] 1. Pump body 2. Water inlet fixing member 3. Water outlet fixing member 4. Water inlet 5. Water outlet

[0019] 6. Thin film pressure sensor 7. Sensor isolation block 8. Silicone film 9. Adjusting screw 10. Guide shaft

[0020] 11. Thin film pressure sensor assembly. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0022] The utility model provides a perfusion pump of switchable pressure detection range, and the working principle is that a thin film pressure sensor assembly which is composed of a thin film pressure sensor and a sensor isolation block is used to realize wide-range detection requirements, and the adjustability of the detection range of the perfusion pump is improved, and the use versatility of the perfusion pump is improved.

[0023] The utility model will be further described in detail in combination with the embodiment and specific implementation.

[0024] For example, Figure 1 And Figure 2As shown, a switchable perfusion pump with a pressure detection range includes a pump body 1, a water inlet fixing member 2 arranged on the pump body, a water outlet fixing member 3 arranged on the pump body, a guide shaft 10 arranged on the pump body in a columnar structure, and a thin film pressure sensor assembly 11 arranged on the water outlet fixing member;

[0025] The bottom surface of the guide shaft is arranged vertically, the water inlet 4 of the water pipe is clamped on the water inlet fixing member, and the other end of the water outlet 5 of the water pipe passes around the guide shaft and is clamped on the water outlet fixing member.

[0026] The thin film pressure sensor assembly includes at least two thin film pressure sensors 6 and sensor isolation blocks 7 for separating adjacent thin film pressure sensors, and the sensor isolation block close to the inner side is arranged close to the water outlet. The water outlet fastener is provided with a silica gel film 8. The thin film pressure sensor assembly is installed on the water outlet fixing member through an adjusting screw 9.

[0027] The specific use steps of the utility model are as follows: for example Figure 1 And Figure 2 As shown, in the use process, two different range sensors can be selected according to actual needs, for example, 0.5g-500g sensors and 300g-1Kg sensors are stacked, and the pressure range of 0.5g-1Kg can be measured; 0.5g-500g sensors can also be split into 0.5g-200g and 200g-500g two sensors to measure the pressure range of 0.5g-500g. Specifically, corresponding sensors can be selected according to actual needs.

[0028] In use, doctors can manually adjust the pressure range through the machine interaction window according to experience. In the detection process, the pressure sensor simultaneously receives signals, and only the signals of the pressure sensor within the range are accepted for data display. Doctors can also automatically adjust, that is, after selecting the pressure range according to experience, if the pressure value exceeds the selected range, the machine automatically jumps to the appropriate pressure sensor for data display.

[0029] The perfusion pump is a switchable perfusion pump with a pressure detection range, which can adapt to more scenes of surgery, avoid excessive range of surgical scenes causing incorrect display of pressure, and has higher precision of smaller range sensors than larger range sensors, and smaller error of displayed pressure values.

[0030] Through the above mode, the utility model provides a switchable perfusion pump with a pressure detection range, which realizes large range detection demand through a thin film pressure sensor assembly composed of a thin film pressure sensor and a sensor isolation block, and achieves the purposes of improving the adjustability of the detection range of the perfusion pump and improving the versatility of the perfusion pump.

[0031] The above merely describes a preferred embodiment of the perfusion pump with switchable pressure detection range disclosed by the present application, and it should be noted that, for those skilled in the art, without departing from the creative concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A perfusion pump with switchable pressure detection range, characterized in that The utility model relates to a water pump, comprising a pump body, a water inlet fixing part arranged on the pump body, a water outlet fixing part arranged on the pump body, a guide shaft in a columnar structure arranged on the pump body and a thin film pressure sensor assembly arranged on the water outlet fixing part. The bottom surface of the guide shaft is arranged vertically, the water inlet of a water pipe is clamped on the water inlet fixing part, and the other end of the water pipe passes around the guide shaft and is clamped into the water outlet fixing part. The thin film pressure sensor assembly comprises at least two thin film pressure sensors and sensor isolation blocks for separating adjacent thin film pressure sensors, and the sensor isolation block close to the inner side is tightly arranged close to the water outlet.

2. The perfusion pump with switchable pressure detection range according to claim 1, characterized in that A silica gel thin film is arranged at the water outlet fastener.

3. The perfusion pump with switchable pressure detection range according to claim 1, characterized in that The thin film pressure sensor assembly is installed at the water outlet fixing part through an adjusting screw.

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