Method and system for improving precision of medical instrument and medical instrument equipment

Abstract

The invention discloses a medical instrument precision improving method and system and medical instrument equipment, and the method comprises the following steps: building a parameter database, the parameter database comprises a plurality of aperture parameters, liquid pressure corresponding to the aperture parameters and hydraulic equipment parameters corresponding to the corresponding liquid pressure; acquiring a nozzle aperture of a water jet cutter to be used, and matching the nozzle aperture with the corresponding aperture parameter in the parameter database to obtain a corresponding hydraulic equipment parameter; and calling the obtained parameters of the hydraulic equipment, so that liquid is sprayed out in a water jet form at a nozzle of the water jet cutter to be used according to the liquid pressure. Self-adaption between the water jet cutter and equipment is achieved, the hydraulic precision of water jet sprayed out of the nozzle at the cutter head is greatly improved, and precise cutting is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a method and system for improving the precision of medical devices and a medical device equipment. Background Art

[0002] The water jet, originally named high-pressure water jet cutting technology, is favored because its cold cutting does not change the physical and chemical properties of materials. After continuous technological improvement, the cutting speed and cutting thickness of the water jet have been greatly improved. Now the water jet has been widely used in many industries such as medical, ceramics, glass, metal, composite materials, etc.

[0003] Currently, the medical water jet technology controls the hydraulic pump to make the water jet spray out, so that the water jet has good flow characteristics. However, if the aperture of the nozzle of the tool head is not measured or the measurement is inaccurate, the hydraulic precision of the finished tool head will be greatly reduced. There are large interval differences in the current aperture of the nozzle of the tool head, and different nozzle sizes require a set of specific equipment parameter combinations, which will lead to low overall precision of the water jet and inability to accurately cut. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that there are large interval differences in the aperture of the nozzle of the tool head, and different nozzle sizes require a set of specific equipment parameter combinations, which will lead to low overall precision of the water jet.

[0005] To solve the above technical problem, the present invention provides a method for improving the precision of a medical device, the medical device including a water jet, comprising the following steps:

[0006] Establish a parameter database, the parameter database including a plurality of aperture parameters, the liquid pressure corresponding to the aperture parameters, and the hydraulic equipment parameters corresponding to the corresponding liquid pressure;

[0007] Obtain the aperture of the nozzle of the water jet to be used, and match it with the corresponding aperture parameter in the parameter database to obtain the corresponding hydraulic equipment parameter;

[0008] Call the obtained hydraulic equipment parameter to make the liquid spray out as a water jet at the nozzle of the water jet to be used according to the liquid pressure.

[0009] In some embodiments, the obtaining the aperture of the nozzle of the water jet to be used includes: measuring the aperture of the nozzle of the water jet to be used before assembly to obtain a first parameter; or,

[0010] Measuring the aperture of the nozzle of the water jet to be used after assembly to obtain a second parameter.

[0011] In some embodiments, the measuring the aperture of the nozzle of the water jet to be used after assembly includes:

[0012] Liquid is introduced into the water jet to be used, and the nozzle of the water jet to be used ejects a water jet.

[0013] Detect the actual liquid flow rate and hydraulic pressure value of the water jet ejected from the nozzle of the water jet to be used.

[0014] Analyze the actual liquid flow rate and the hydraulic pressure value, calculate the nozzle aperture of the water jet to be used, so as to obtain a second parameter.

[0015] In some embodiments, the analyzing the actual liquid flow rate and the hydraulic pressure value, calculating the nozzle aperture of the water jet to be used, so as to obtain a second parameter includes:

[0016] Obtain and analyze the hydraulic pressure value and the actual liquid flow rate, calculate the nozzle aperture of the water jet to be used, so as to obtain a second parameter, and the nozzle aperture of the water jet to be used satisfies the following formula:

[0017]

[0018] Wherein, Q t is the ideal liquid flow rate; d is the first parameter; p is the hydraulic pressure value;

[0019] Q = tQ t d;

[0020] Wherein, Q is the actual liquid flow rate; d is the second parameter; t is the correction coefficient.

[0021] In some embodiments, the establishing the parameter database includes:

[0022] Obtain the aperture parameter of the nozzle of the water jet.

[0023] Obtain the hydraulic equipment parameter for controlling the water jet with the corresponding liquid pressure ejected from the nozzle of the water jet, and define the aperture parameter, the liquid pressure corresponding to the aperture parameter, and the hydraulic equipment parameter corresponding to the corresponding liquid pressure as the first parameter group.

[0024] Obtain multiple groups of the first parameter groups, and establish a parameter database based on the multiple groups of the first parameter groups.

[0025] In some embodiments, the obtaining the aperture parameter of the nozzle of the water jet includes:

[0026] Obtain the aperture parameters of the nozzles of multiple water jets.

[0027] Analyze the aperture parameters of the nozzles of the multiple water jets, so as to divide the aperture parameters of the nozzles of the multiple water jets into multiple intervals.

[0028] In some embodiments, the matching with the aperture parameter corresponding in the parameter database includes:

[0029] Identifying the radio frequency tag of the water jet to be used to obtain information about the water jet to be used;

[0030] Analyzing the information of the water jet to be used to obtain the nozzle aperture information of the water jet to be used, and matching it with the aperture parameter corresponding in the parameter database to obtain the interval corresponding to the aperture parameter.

[0031] In some embodiments, the hydraulic equipment parameters include the rotational torque and rotational speed of the hydraulic equipment.

[0032] The present invention also provides a medical device precision improvement system, which applies the medical device precision improvement method as described above. The medical device precision improvement system includes:

[0033] A hydraulic device for connecting with the water jet and enabling the liquid to be ejected as a water jet at the nozzle of the water jet according to a preset liquid pressure;

[0034] An identification device for identifying the water jet to obtain the aperture parameter of the water jet;

[0035] A control system for obtaining the information of the identification device and calling the corresponding hydraulic equipment parameters to control the liquid input into the water jet by the hydraulic equipment to be ejected as a water jet at the nozzle of the water jet according to the preset liquid pressure.

[0036] The present invention also provides a medical device, including a water jet and the medical device precision improvement system as described above, and the water jet is connected to the hydraulic device.

[0037] Compared with the prior art, the medical device precision improvement method, system and medical device in the embodiments of the present invention have the beneficial effects that:

[0038] A parameter database is established, which includes multiple aperture parameters, the liquid pressure corresponding to the aperture parameters, and the hydraulic equipment parameters corresponding to the corresponding liquid pressure; the nozzle aperture of the water jet to be used is obtained and matched with the corresponding aperture parameter in the parameter database to obtain the corresponding hydraulic equipment parameters; the obtained hydraulic equipment parameters are called to enable the liquid to be ejected as a water jet at the nozzle of the water jet to be used according to the liquid pressure. The present invention realizes the adaptability between the water jet and the equipment, and greatly improves the hydraulic precision of the water jet ejected from the nozzle at the tool head, ensuring precise cutting. Description of the Drawings

[0039] Figure 1 is a schematic flowchart of the medical device precision improvement method provided by the embodiments of the present invention;

[0040] Figure 2 It is a schematic diagram of the first sub - process of the method for improving the accuracy of medical devices provided by the embodiments of the present invention;

[0041] Figure 3 It is a schematic diagram of the second sub - process of the method for improving the accuracy of medical devices provided by the embodiments of the present invention;

[0042] Figure 4 It is a schematic diagram of the third sub - process of the method for improving the accuracy of medical devices provided by the embodiments of the present invention;

[0043] Figure 5 It is a schematic diagram of the fourth sub - process of the method for improving the accuracy of medical devices provided by the embodiments of the present invention;

[0044] Figure 6 It is a schematic diagram of the structure of a nozzle diameter hydraulic measurement device provided by the embodiments of the present invention;

[0045] In the figure, 1 is a pressurizing device; 11 is a pressurizing cavity; 12 is a force - applying part; 13 is a liquid outlet; 2 is a conduit; 3 is a water jet; 31 is a water jet nozzle; 4 is a pressure monitoring device. Detailed implementation manners

[0046] The following combines the accompanying drawings and embodiments to further describe in detail the specific implementation manners of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0047] As Figure 1 shown, the embodiments of the present invention provide a method for improving the accuracy of medical devices. The medical device includes a water jet and comprises the following steps:

[0048] S110. Establish a parameter database, where the parameter database includes multiple aperture parameters, the liquid pressure corresponding to the aperture parameters, and the hydraulic equipment parameters corresponding to the corresponding liquid pressure;

[0049] In this step, by establishing a parameter database to store each aperture parameter, the liquid pressure corresponding to the aperture parameter, and the hydraulic equipment parameters corresponding to the corresponding liquid pressure, it is convenient for the subsequent water jet to call the corresponding hydraulic equipment parameters.

[0050] S120. Obtain the nozzle aperture of the water jet to be used and match it with the corresponding aperture parameter in the parameter database to obtain the corresponding hydraulic equipment parameters;

[0051] In this step, the nozzle aperture of the selected water jet is compared with multiple aperture parameters in the parameter database to find the corresponding aperture parameter, so as to obtain the hydraulic equipment parameters matching the selected nozzle aperture from the parameter database.

[0052] S130. Call the obtained hydraulic equipment parameters so that the liquid is ejected as a water jet at the nozzle of the water jet to be used according to the liquid pressure.

[0053] Input the obtained hydraulic equipment parameters into the corresponding control system to adjust the working state of the hydraulic equipment, so as to ensure that the nozzle of the water jet can generate the required liquid pressure and complete the cutting task.

[0054] Based on the above steps, the adaptability between the cutter head of the water jet and the equipment is realized, and the hydraulic precision of the water jet ejected from the nozzle at the cutter head is greatly improved, ensuring precise cutting.

[0055] In some embodiments, obtaining the nozzle aperture of the water jet to be used includes: measuring the nozzle aperture of the water jet to be used before assembly to obtain a first parameter;

[0056] It can be understood that since the nozzle at the cutter head is contained in the pipeline after assembly and the angle is not conducive to measurement, the nozzle aperture measured before assembly is used to characterize the nozzle size of the finished cutter head; this method can directly measure the actual size of the nozzle and is not affected by other components. The measurement result is used as the first parameter for subsequent matching with the records in the parameter database.

[0057] It can also be understood that since the aperture value may also change before and after assembly, relying on the nozzle aperture data of the nozzle at the cutter head before assembly to characterize the nozzle aperture of the finished cutter head may be inaccurate, and this method may affect the hydraulic precision of the water jet after assembly. In this embodiment, the nozzle aperture of the water jet to be used after assembly can also be measured, that is, the actual working aperture of the nozzle, to obtain a second parameter, reducing the possible errors brought by the assembly process, such as assembly precision, influence of connecting parts, etc. The measurement result is used as the second parameter for matching with the records in the parameter database as well.

[0058] Both measurement methods in this embodiment are to obtain accurate nozzle apertures, so as to correctly find the corresponding hydraulic equipment parameters from the parameter database and ensure that the water jet system can achieve the expected working performance.

[0059] Please refer to Figure 2 and Figure 6 , in some embodiments, measuring the nozzle aperture of the water jet to be used after assembly includes:

[0060] S121. Pass liquid into the water jet to be used and make the nozzle of the water jet to be used eject a water jet;

[0061] This step applies a certain hydraulic pressure (liquid pressure) to the nozzle of the water jet to be used, so that it generates a water jet, wherein the device for applying hydraulic pressure can be composed of a pressurizing device 1 and a conduit 2, and the pressurizing device 1 includes a pressurizing chamber 11, a force-applying part 12 and a liquid outlet 13, the liquid outlet 13 is connected to the pressurizing chamber 11, and the force-applying part 12 is installed on the side of the pressurizing chamber 11 away from the liquid outlet 13, so that when the force-applying part 12 applies force to move in the direction of the liquid outlet 13, the liquid in the pressurizing chamber 11 is squeezed, so that the liquid passes through the conduit 2 with a certain hydraulic pressure and is ejected in the form of a water jet at the water jet nozzle 31 of the water jet 3.

[0062] 122. Detecting the actual liquid flow rate and hydraulic pressure value of the water jet sprayed from the nozzle of the pressurized water jet to be used;

[0063] In this step, a pressure monitoring device 4, such as a flow meter and a pressure sensor, is added to the conduit 2 to detect the actual liquid flow rate (the volume of liquid flowing out per unit time) ejected from the nozzle of the water jet to be used after pressurization and the hydraulic value of the system at this time (i.e., the liquid pressure at the nozzle outlet).

[0064] 123. Analyze the actual liquid flow rate and the hydraulic pressure value, calculate the nozzle aperture of the water jet to be used, and obtain the second parameter.

[0065] This step deduces the relationship between the nozzle aperture and the flow rate and the liquid pressure based on the actual liquid flow rate and hydraulic pressure value detected. The result of this calculation is used as the second parameter for subsequent matching with the records in the parameter database.

[0066] This embodiment takes into account the actual working state of the entire system and can more accurately reflect the performance of the nozzle in actual use.

[0067] In some embodiments, analyzing the actual liquid flow rate and the hydraulic pressure value to calculate the nozzle aperture of the water jet to be used to obtain the second parameter includes:

[0068] The hydraulic pressure value and the actual liquid flow rate are obtained and analyzed, and the nozzle aperture of the water jet to be used is calculated to obtain the second parameter. The nozzle aperture of the water jet to be used satisfies the following formula:

[0069]

[0070] Among them, Q t is the ideal liquid flow rate; d is the first parameter; p is the hydraulic pressure value;

[0071] Q=tQ t d;

[0072] Wherein, Q is the actual liquid flow rate; d is the second parameter; and t is the correction coefficient.

[0073] In this step, the two formulas of the ideal liquid flow rate and the actual liquid flow rate are combined, and the second parameter is calculated based on the monitored hydraulic value and the actual liquid flow rate to obtain the nozzle aperture of the water jet to be used in this embodiment. It can be understood that the correction factor in this embodiment is set according to actual needs, aiming to reduce errors and improve the accuracy and authenticity of the calculation results, and is not specifically limited here. In this embodiment, the aperture size of the nozzle itself can be directly measured through the above parameters, without being affected by other components and assembly relationships, improving the accuracy of the measured nozzle aperture.

[0074] Please refer to Figure 3 , in some embodiments, establishing a parameter database includes:

[0075] S111. Obtain the aperture parameter of the nozzle of the water jet;

[0076] In this step, measure and record the aperture parameters of the nozzles of different water jets as the basic information of the parameter database.

[0077] S112. Obtain the hydraulic equipment parameters for controlling the water jet with the corresponding liquid pressure ejected from the nozzle of the water jet, and define the aperture parameter, the liquid pressure corresponding to the aperture parameter, and the hydraulic equipment parameter corresponding to the corresponding liquid pressure as the first parameter group;

[0078] In this step, in order to make the nozzle of the water jet generate the expected liquid pressure, it is necessary to adjust the parameters of the hydraulic equipment connected to it (such as the pressure setting of the pump, flow control, etc.). In this step, determine the liquid pressure corresponding to each aperture parameter and the hydraulic equipment parameters required to achieve this pressure, and record these three as a whole (i.e., the first parameter group).

[0079] S113. Obtain multiple groups of the first parameter group and establish a parameter database based on the multiple groups of the first parameter group.

[0080] For multiple different nozzles of the water jet and their corresponding combinations of liquid pressure and hydraulic equipment parameters, repeat steps S111 and S112 to obtain multiple first parameter groups. Then, integrate these first parameter groups into a parameter database for subsequent query and use.

[0081] In this embodiment, through this parameter database, the corresponding hydraulic equipment parameters can be quickly found according to the aperture parameter of the nozzle of the water jet to be used, so as to ensure that the system can correctly generate the required liquid pressure, improve the hydraulic control accuracy of the water jet, and improve work efficiency and cutting quality.

[0082] Please refer to Figure 4 , in some embodiments, obtaining the aperture parameter of the nozzle of the water jet includes:

[0083] S1111. Obtain the aperture parameters of the nozzles of multiple water jets;

[0084] In this step, measure and record the aperture parameters (i.e., the diameter of the internal channel of the nozzle) of the nozzles of various different water jets. Understandably, in this embodiment, the aperture parameters of the nozzles of the water jets can be obtained through the measurement methods mentioned above.

[0085] S1112. Analyze the aperture parameters of the nozzles of multiple water jets to divide the aperture parameters of the nozzles of multiple water jets into multiple intervals;

[0086] Analyze the aperture parameters of the nozzles of all the water jets collected, and divide them into several intervals according to the distribution of the parameter values, so as to classify the nozzles of the water jets with relatively small differences in aperture parameters into the same interval, and uniformly set the hydraulic equipment parameters for this interval; when a certain aperture parameter in this interval matches the nozzle aperture (i.e., the second parameter) of the water jet to be used, the hydraulic equipment parameters corresponding to this interval can be directly called. These intervals can be continuous or discrete, depending on the actual needs and the characteristics of the data.

[0087] Through the above steps in this embodiment, it is convenient to select the appropriate aperture parameters of the nozzles of the water jets according to the requirements of the actual cutting task, and adjust the corresponding hydraulic equipment parameters accordingly to ensure that the water jet can correctly generate the required liquid pressure, so as to complete the cutting task.

[0088] It should be noted that in some embodiments, it is also possible to numerically calibrate the aperture parameters of the nozzles of multiple water jets, adjust the parameter combinations of the test equipment for the above-mentioned water jets on a standard test platform, so that the water jet ejected from the nozzle at the measured tool head reaches the specified liquid pressure, and obtain the parameter combination of the equipment corresponding to the measured tool head at this time, so as to establish a data model between the liquid pressure, the aperture parameters of the water jet nozzle, and the parameter combination of the equipment.

[0089] Preferably, the hydraulic equipment parameters include the rotational torque and rotational speed of the hydraulic equipment, etc.

[0090] Please refer to Figure 5 , in some embodiments, matching with the corresponding aperture parameters in the parameter database includes:

[0091] S124. Identify the radio frequency tag of the water jet to be used to obtain the information of the water jet to be used;

[0092] In this step, use radio frequency (RF) identification technology to read the radio frequency tag (such as an RFID tag) on the water jet to be used. This tag contains some key information about the water jet, such as the type and the nozzle aperture information of the water jet, etc.

[0093] S125. Analyze the information of the water jet cutter to be used to obtain the nozzle aperture information of the water jet cutter to be used, and match it with the aperture parameters corresponding to the parameter database to obtain the interval corresponding to the aperture parameters.

[0094] Through the analysis of the information of the water jet cutter to be used obtained from the radio frequency tag in this step, the nozzle aperture parameters used by the water jet cutter can be determined. Then, this aperture parameter is compared with the records in the parameter database to find the corresponding interval and obtain the corresponding hydraulic equipment parameters within this interval, so as to control the water jet cutter system to generate the expected liquid pressure.

[0095] Through the above steps in this embodiment, the appropriate water jet cutter nozzle aperture parameters can be selected according to the requirements of the actual cutting task, and the corresponding hydraulic equipment parameters can be adjusted accordingly, avoiding a set of equipment parameter combinations being adapted to nozzles of different sizes, achieving an adaptive matching relationship between the equipment control parameters and the cutter head nozzle aperture, ensuring that the water jet cutter system can correctly generate the required liquid pressure, thereby improving the hydraulic control accuracy of the water jet cutter to complete the cutting task.

[0096] The present invention also provides a medical device precision improvement system, which applies the medical device precision improvement method as described above. The medical device precision improvement system includes a hydraulic device, an identification device, and a control system. The identification device is used to identify the water jet cutter to obtain the aperture parameters of the water jet cutter, and the control system is used to obtain the information of the identification device and call the corresponding hydraulic equipment parameters to control the liquid input into the water jet cutter by the hydraulic equipment to be ejected as a water jet at the nozzle of the water jet cutter according to a preset liquid pressure. The hydraulic device is used to be connected to the water jet cutter and make the liquid be ejected as a water jet at the nozzle of the water jet cutter according to a preset liquid pressure.

[0097] The medical device precision improvement system of this embodiment combines the above-mentioned medical device precision improvement method, enabling the entire medical device precision improvement system to achieve precise control of the liquid pressure of the water jet ejected by the water jet cutter through the coordinated work of these three components, thereby improving the precision and efficiency of water jet cutting.

[0098] The present invention also provides a medical device, including a water jet cutter and the medical device precision improvement system as described above. The water jet cutter is connected to the hydraulic device to control the hydraulic pressure of different water jet cutters by using the hydraulic device, so that the nozzle of the water jet cutter ejects a water jet with a preset pressure.

[0099] In summary, the embodiments of the present invention provide a method for improving the accuracy of medical devices, a system and a medical device. The method obtains the aperture of the cutter head nozzle through a method that combines actual size measurement or actual hydraulic measurement with calculation, and by subdividing the nozzle aperture range or quantifying the nozzle aperture, the control parameters of the cutter head and the matching device are accurately corresponding. By radio frequency identifying the identity information such as the aperture of the cutter head nozzle, the cutter head can be recognized by the device and the corresponding device control parameters can be called, achieving the adaptability between the water jet cutter and the device, and greatly improving the hydraulic accuracy of the water jet ejected from the nozzle at the cutter head, ensuring precise cutting.

[0100] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A method for improving the accuracy of a medical device, characterized in that, The medical device includes a water jet cutter, and the method includes the following steps: Establish a parameter database, which includes multiple aperture parameters, the liquid pressure corresponding to the aperture parameters, and the hydraulic equipment parameters corresponding to the corresponding liquid pressure; Obtain the nozzle aperture of the water jet cutter to be used and match it with the corresponding aperture parameter in the parameter database to obtain the corresponding hydraulic equipment parameters; Call the obtained hydraulic equipment parameters so that the liquid is ejected as a water jet at the nozzle of the water jet cutter to be used according to the liquid pressure.

2. The method for improving the accuracy of medical devices according to claim 1, wherein The obtaining of the nozzle aperture of the water jet cutter to be used includes: measuring the nozzle aperture of the water jet cutter to be used before assembly to obtain a first parameter; or, Measuring the nozzle aperture of the water jet cutter to be used after assembly to obtain a second parameter.

3. The method for improving the precision of the medical device according to claim 2, wherein The measuring of the nozzle aperture of the water jet cutter to be used after assembly includes: Introducing liquid into the water jet cutter to be used and causing the nozzle of the water jet cutter to be used to eject a water jet; Detecting the actual liquid flow rate and the hydraulic value of the water jet ejected from the nozzle of the water jet cutter to be used; Analyzing the actual liquid flow rate and the hydraulic value, calculating the nozzle aperture of the water jet cutter to be used to obtain a second parameter.

4. The method for improving the accuracy of medical devices according to claim 3, wherein The analyzing of the actual liquid flow rate and the hydraulic value, calculating the nozzle aperture of the water jet cutter to be used to obtain a second parameter includes: Obtaining and analyzing the hydraulic value and the actual liquid flow rate, calculating the nozzle aperture of the water jet cutter to be used to obtain a second parameter, and the nozzle aperture of the water jet cutter to be used satisfies the following formula: where Q t is the ideal liquid flow rate; d is the first parameter; p is the hydraulic pressure value; Q = tQ t d; Where Q is the actual liquid flow rate; d is the second parameter; t is the correction coefficient.

5. The method for improving the precision of medical devices according to claim 1, wherein The establishing of the parameter database includes: Obtaining the aperture parameters of the nozzle of the water jet cutter; Obtaining the hydraulic equipment parameters for controlling the water jet with the corresponding liquid pressure ejected from the nozzle of the water jet cutter, and defining the aperture parameter, the liquid pressure corresponding to the aperture parameter, and the hydraulic equipment parameters corresponding to the corresponding liquid pressure as a first parameter group; Obtaining multiple groups of first parameter groups and establishing a parameter database based on the multiple groups of first parameter groups.

6. The method for improving the accuracy of a medical device according to claim 5, characterized in that, The obtaining of the aperture parameters of the nozzle of the water jet cutter includes: Obtaining the aperture parameters of the nozzles of multiple water jet cutters; Analyzing the aperture parameters of the nozzles of the multiple water jet cutters to divide the aperture parameters of the nozzles of the multiple water jet cutters into multiple intervals.

7. The method for improving the accuracy of a medical device according to claim 6, wherein The matching with the corresponding aperture parameter in the parameter database includes: Identifying the radio frequency tag of the water jet cutter to be used to obtain the information of the water jet cutter to be used; Analyzing the information of the water jet cutter to be used to obtain the nozzle aperture information of the water jet cutter to be used and matching it with the corresponding aperture parameter in the parameter database to obtain the interval corresponding to the aperture parameter.

8. The method for improving the accuracy of medical devices according to any one of claims 1-7, characterized in that, The hydraulic equipment parameters include the rotational torque and the rotational speed of the hydraulic equipment.

9. A medical device precision improvement system, characterized in that, Applying the method for improving the accuracy of the medical device as described in any one of claims 1-8 above, the medical device accuracy improvement system includes: A hydraulic device for connecting to the water jet cutter and causing the liquid to be ejected as a water jet at the nozzle of the water jet cutter according to a preset liquid pressure; An identification device for identifying the water jet cutter to obtain the aperture parameters of the water jet cutter; A control system is configured to obtain information of the identification device and call corresponding hydraulic equipment parameters, so as to control the liquid input into the water jet cutter by the hydraulic equipment to be ejected as a water jet at the nozzle of the water jet cutter according to the preset liquid pressure.

10. A medical device, characterized in that, It includes a water jet cutter and a medical device precision improvement system as described in claim 9 above, and the water jet cutter is connected to the hydraulic device.

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