A blood sampling method based on a pressing device

Abstract

The present invention relates to the field of medical technology, and specifically proposes a blood sampling method based on a pressing device, including: placing the extremity of a person to be blooded through a pressing module and a fixing module on a blood sampling board and exposing the position to be blooded; collecting the size data of the extremity of the person to be blooded at the fixing module and determining the moving distance of the fixing module, and collecting pressure data based on a pressure sensor; determining the initial pressing force and initial pressing frequency of the pressing module according to the pressure data; inserting a blood sampling needle into the position to be blooded for blood sampling, collecting the blood volume collected per unit time to obtain the blood sampling rate, comparing the blood sampling rate with the standard rate to determine whether to adjust the initial pressing force and initial pressing frequency of the pressing module, and determining whether to turn on the negative pressure blood sampling module. The present invention realizes feedback regulation of the blood sampling rate, improves the accuracy and efficiency of blood sampling, reduces the influence of human factors, and is conducive to obtaining more accurate and reliable blood samples.

Description

Technical Field

[0001] The present invention relates to the field of medical technology, and in particular to a blood sampling method based on a pressing device. Background Art

[0002] Blood drawing is an important medical operation. By collecting blood samples from patients, various laboratory tests can be performed to evaluate organ function, formulate treatment plans, monitor drug concentrations, and screen for health problems. It also provides important materials for scientific research, helps diagnose and monitor diseases, and promotes early prevention, intervention, and treatment of diseases. It is of great significance to the health management of patients.

[0003] The appropriate blood collection rate can reduce blood vessel damage and pain, maintain blood stability, reduce the need for blood anticoagulants, and improve the success rate and efficiency of blood collection, providing accurate and reliable blood samples for diagnosis, treatment and monitoring of diseases. Currently, blood collection mostly depends on the experience of the staff, and is greatly affected by human factors. Even if blood collection equipment is used for automatic blood collection, there is a lack of adjustment and feedback mechanism, and the blood samples collected are quite different, which can easily cause blood sample contamination, and even lead to misdiagnosis and misjudgment in severe cases.

[0004] Therefore, it is necessary to design a blood collection method based on a pressing device to solve the problems in the current technology. Summary of the invention

[0005] In view of this, the present invention proposes a computer program storage medium, aiming to use a computer program to solve the problem that current blood collection mostly relies on manual operation, which is time-consuming, labor-intensive and greatly affected by human factors. Even if mechanical equipment is used to assist blood collection, there is a lack of feedback adjustment mechanism, resulting in low reliability of the blood samples collected.

[0006] The present invention proposes a blood sampling method based on a pressing device, comprising:

[0007] The extremity of the person to be blooded is placed on the blood collection board through the pressing module and the fixing module to expose the position to be blooded;

[0008] Collecting the size data of the extremities of the person to be blood-collected at the fixed module, determining the moving distance of the fixed module according to the size data, and collecting pressure data based on the pressure sensor after the fixed module completes the movement;

[0009] Determine the initial pressing force and initial pressing frequency of the pressing module according to the pressure data;

[0010] Inserting a blood sampling needle into the position to be sampled for blood sampling, collecting the amount of blood collected per unit time to obtain a blood sampling rate, comparing the blood sampling rate with a standard rate, and judging whether to adjust the initial pressing force and the initial pressing frequency of the pressing module according to the comparison result, and judging whether to turn on the negative pressure blood sampling module according to the comparison result of the pressing frequency and the frequency threshold;

[0011] The pressing device includes a workbench, a blood collection plate, a fixing module, a pressing module and a negative pressure blood collection module; wherein,

[0012] The fixing module is fixedly arranged on the upper surface of the workbench, and the fixing module is an annular structure. The fixing module includes at least four pneumatic telescopic rods, and the pneumatic telescopic rods are in the same plane and are evenly arranged within 360 degrees. The heads of the pneumatic telescopic rods face the center of the circle, and the heads of the pneumatic telescopic rods are also provided with the pressure sensor; the fixing module also includes a first buffer portion, and the first buffer portion wraps the pneumatic telescopic rod;

[0013] The pressing module is arranged at one side of the fixing module and close to the blood sampling position, at least two pressing units are arranged in the pressing module, and a second buffer portion is arranged on the surface of the pressing unit;

[0014] The negative pressure blood collection module includes a blood collection container, an image acquisition unit and a negative pressure unit. The blood collection container includes a cup body, a movable part and a fixed part. The fixed part is located at the upper part of the cup body. A blood collection opening and a flat pressure opening are provided on the fixed part. The movable part is located inside the cup body and can move along the cup body. A negative pressure opening is provided at the bottom of the cup body.

[0015] Further, when determining the moving distance of the fixing device according to the size data, it includes:

[0016] The dimension data Z is compared with the first preset dimension data Z1 and the second preset dimension data Z2 respectively, Z1<Z2, and the moving distance of the fixing device is determined according to the comparison result;

[0017] Under the first comparison result, the moving distance of the fixing device is determined to be a first moving distance Y1;

[0018] Under the second comparison result, the moving distance of the fixing device is determined to be a second moving distance Y2;

[0019] Under the third comparison result, the moving distance of the fixing device is determined to be a third moving distance Y3;

[0020] Among them, the first comparison result is Z≤Z1, the second comparison result is Z1<Z≤Z2, and the third comparison result is Z2<Z; Y1>Y2>Y3>0.

[0021] Further, when determining the initial pressing force and initial pressing frequency of the pressing module according to the pressure data, it includes:

[0022] Compare the pressure data N with the first preset pressure data N1 and the second preset pressure data N2 respectively, N1<N2, and determine the initial pressing force and the initial pressing frequency according to the pressure comparison result;

[0023] Under the first pressure comparison result, the initial pressing force is determined to be the first preset initial pressing force Ny1, and the initial pressing frequency is determined to be the first preset initial pressing frequency E1;

[0024] Under the second pressure comparison result, the initial pressing force is determined to be the second preset initial pressing force Ny2, and the initial pressing frequency is determined to be the second preset initial pressing frequency E2;

[0025] Under the third pressure comparison result, the initial pressing force is determined to be the third preset initial pressing force Ny3, and the initial pressing frequency is determined to be the first preset initial pressing frequency E3;

[0026] Among them, the first pressure comparison result is N≤N1, the second pressure comparison result is N1<N≤N2, and the third pressure comparison result is N2<N; 0<Ny1<Ny2<Ny3; 0<E1<E2<E3.

[0027] Further, after determining that the initial pressing force is the i-th preset initial pressing force Nyi, and the initial pressing frequency is the i-th preset initial pressing frequency Ei, i=1, 2, 3, the blood collection volume per unit time is collected during blood collection to obtain a blood collection rate, and the blood collection rate is compared with the standard rate, and whether to adjust the initial pressing force and the initial pressing frequency of the pressing module is determined according to the comparison result, including:

[0028] Based on the image data of the blood sampling container collected by the image acquisition unit, the blood sampling volume per unit time is obtained, the first blood sampling rate collected is recorded as the first blood sampling rate V1, and the first blood sampling rate V1 is compared with the standard rate V0, and it is determined whether to adjust the initial pressing force Nyi and the initial pressing frequency Ei according to the comparison result;

[0029] Under the first rate comparison result, it is determined that the initial pressing force Nyi and the initial pressing frequency Ei are adjusted;

[0030] Under the second rate comparison result, it is determined that the initial pressing force Nyi and the initial pressing frequency Ei are not adjusted, and blood sampling is completed with the initial pressing force Nyi and the initial pressing frequency Ei;

[0031] The first rate comparison result is V1<V0, and the second rate comparison result is V1≥V0.

[0032] Further, when determining that the initial pressing force Nyi and the initial pressing frequency Ei are to be adjusted, it includes:

[0033] According to the first blood sampling rate V1 and the standard rate V0, the first rate difference ΔV is obtained, ΔV=V1-V0, and according to the first rate difference ΔV, a primary adjustment coefficient A1 is selected to adjust the initial pressing force Nyi and the initial pressing frequency Ei; the primary adjustment coefficient A1 is proportional to the first rate difference ΔV, 1.4>A1>1.

[0034] Furthermore, after selecting an adjustment coefficient A1 to adjust the initial pressing force Nyi and the initial pressing frequency Ei to obtain the adjusted pressing force Nyi*A1 and the adjusted pressing frequency Ei*A1, it also includes:

[0035] Collecting a second blood sampling rate V2, and comparing the second blood sampling rate V2 with the standard rate V0, and judging whether to make a second adjustment to the adjusted pressing frequency Ei*A1 according to the comparison result;

[0036] Based on the third rate comparison result, it is determined that the adjusted pressing frequency Ei*A1 is adjusted for a second time;

[0037] Under the fourth rate comparison result, it is determined that the adjusted pressing frequency Ei*A1 is not to be adjusted for the second time;

[0038] Among them, the third rate comparison result is V2<V0, and the fourth rate comparison result is V2≥V0.

[0039] Furthermore, when it is determined to make a secondary adjustment to the adjusted pressing frequency Ei*A1, it includes:

[0040] According to the second blood sampling rate V2 and the first blood sampling rate V1, the second rate difference ΔV2 is obtained, ΔV2=V2-V1, and the secondary adjustment coefficient A2 is selected according to the second rate difference ΔV2 to perform secondary adjustment on the adjusted compression frequency Ei*A1; the second rate difference ΔV2 is proportional to the secondary adjustment coefficient A2, 1.2>A2>1.

[0041] Furthermore, when the secondary adjustment coefficient A2 is selected to perform secondary adjustment on the adjusted pressing frequency Ei*A1, after obtaining the secondary adjusted pressing frequency Ei*A1*A2, the method further includes:

[0042] Compare the secondary adjusted pressing frequency Ei*A1*A2 with the pressing frequency threshold Emax to determine whether it exceeds the frequency threshold;

[0043] Under the first threshold comparison result, it is determined that the secondary adjusted pressing frequency E i*A1*A2 does not exceed the threshold, and blood is collected at the secondary adjusted pressing frequency E i*A1*A2;

[0044] Under the second threshold comparison result, it is determined that the secondary adjusted pressing frequency Ei*A1*A2 exceeds the threshold, and the pressing frequency threshold Emax is used as the secondary adjusted pressing frequency for blood sampling;

[0045] Among them, the first threshold comparison result is Ei*A1*A2≤Emax, and the second threshold comparison result is Ei*A1*A2>Emax.

[0046] Furthermore, after determining whether the pressing frequency after the second adjustment exceeds the frequency threshold, the method further includes:

[0047] Collecting a third blood sampling rate V3, and comparing the third blood sampling rate V3 with the standard rate V0, and judging whether to start the negative blood sampling module according to the comparison result;

[0048] Under the first final comparison result, it is determined that the negative pressure blood sampling module is not to be turned on;

[0049] Under the second final comparison result, it is determined to turn on the negative pressure blood sampling module;

[0050] Among them, the first final comparison result is V3≥V0, and the second final comparison result is V3<V0.

[0051] Further, when it is determined to turn on the negative pressure blood sampling module, it includes:

[0052] According to the third blood sampling rate V3 and the standard rate V0, a ​​third rate difference ΔV3 is obtained, ΔV3=V0-V3, and a moving speed S of the moving part in the negative pressure blood sampling module is determined according to the third rate difference ΔV3, and the moving speed S is proportional to the third rate difference ΔV3.

[0053] Compared with the prior art, the beneficial effects of the present invention are: by passing the extremities of the person to be blooded through the pressing device, collecting the size data and determining the moving distance of the fixing device, using the pressure sensor to collect the pressure data, and then determining the initial pressing force and initial pressing frequency of the pressing module, the function of adjusting the pressing force and pressing frequency as needed is realized. In addition, by comparing the blood collection rate with the standard rate, adjusting the pressing force and frequency, and turning on the negative pressure blood collection module according to the frequency threshold, feedback adjustment of the blood collection rate during blood collection is realized, and the accurate control of the blood collection rate improves the accuracy and efficiency of blood collection, reduces the influence of human factors, and is conducive to obtaining more accurate and reliable blood samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0055] Figure 1 A flow chart of a blood sampling method based on a pressing device provided in an embodiment of the present invention;

[0056] Figure 2 is a schematic structural diagram of a pressing device in an embodiment;

[0057] Figure 3 This is a schematic diagram of the structure of the fixed module in the embodiment;

[0058] Figure 4 This is a schematic diagram of the structure of the pressing module in the embodiment;

[0059] Figure 5 Schematic diagram of the structure of the blood collection container in the embodiment.

[0060] Among them, 110, workbench; 120, blood collection plate; 130, fixing module; 131, pneumatic telescopic rod; 132, pressure sensor; 133, first buffer; 134, first air suction port; 140, pressing module; 141, pressing unit; 142, second buffer; 143, cushion block; 151, blood collection container; 152, image acquisition unit; 153, cup body; 154, moving part; 155, fixing part; 156, blood collection opening; 157, flat pressure opening; 158, negative pressure opening; 159, second air suction port; 160, limit block. DETAILED DESCRIPTION

[0061] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0062] Blood collection is an important medical operation that provides doctors with an important way to obtain biological information. It plays a vital role in diagnosing, treating and monitoring diseases. At present, blood collection mainly depends on the experience level of medical staff. The operation process is easily affected by individual skills and subjective factors, resulting in large differences in blood collection results. Although modern medical equipment can basically realize automated blood collection, most equipment lacks real-time feedback and adjustment mechanisms and cannot be dynamically adjusted according to actual conditions, resulting in insufficient blood collection efficiency and accuracy. During the blood collection process, improper operation or equipment defects may lead to contamination of blood samples, thereby affecting the accuracy of the test results and even having a serious impact on the patient's diagnosis and treatment.

[0063] In the face of the problems existing in the current technology, it is necessary to design a blood collection method based on a pressing device. Through the automated pressing device, the blood collection process can be precisely controlled, the pressing force and frequency can be adjusted according to the real-time collected data, the influence of human factors can be reduced, and the accuracy and consistency of blood collection can be improved. At the same time, vascular damage and pain can be reduced, the need for blood anticoagulants can be reduced, the success rate and efficiency of blood collection can be improved, and the risk of blood sample contamination can be avoided.

[0064] See also Figure 1 As shown, this embodiment provides a blood sampling method based on a pressing device, comprising:

[0065] S100: The extremity of the person to be blooded is placed on the blood collection board through the pressing module and the fixing module to expose the position to be blooded.

[0066] S200: Collecting the size data of the extremities of the person to be blood drawn at the fixed module, determining the moving distance of the fixed module according to the size data, and collecting pressure data based on the pressure sensor after the fixed module completes the movement.

[0067] S300: Determine an initial pressing force and an initial pressing frequency of the pressing module according to the pressure data.

[0068] S400: Insert the blood collection needle into the position to be blood collected to collect blood, collect the blood collection volume per unit time to obtain the blood collection rate, compare the blood collection rate with the standard rate, and determine whether to adjust the initial pressing force and initial pressing frequency of the pressing module based on the comparison result, and determine whether to turn on the negative pressure blood collection module based on the comparison result of the pressing frequency and the frequency threshold.

[0069] See also Figure 2-5As shown, the pressing device includes a workbench 110, a blood collection plate 120, a fixing module 130, a pressing module 140 and a negative pressure blood collection module. Among them, the fixing module 130 is fixedly arranged on the upper surface of the workbench 110, and the fixing module 130 is a ring structure. The fixing module 130 includes at least four pneumatic telescopic rods 131, and the pneumatic telescopic rods 131 are in the same plane and are evenly arranged within 360°. The heads of the pneumatic telescopic rods 131 face the center of the circle, and the heads of the pneumatic telescopic rods 131 are also provided with pressure sensors 132. The fixing module 130 also includes a first buffer portion 133, and the first buffer portion 133 wraps the pneumatic telescopic rod 131. The movement of the pneumatic telescopic rod 131 is achieved by setting a first air suction port 134 on the outer surface of the fixing module 130 to pump and inflate.

[0070] Figure 3 Only the general structure of the pressing module 140 when pressing is shown. Figure 3 Based on the combination Figure 2 It can be seen that the pressing module also includes an externally surrounded shell, and the pressing module 140 is arranged on one side of the fixing module 130 and close to the position to be blood drawn. At least two pressing units 141 are arranged in the pressing module 140, and a second buffer portion 142 is arranged on the surface of the pressing unit 141. The pressing unit 141 can be realized by using a cylinder to drive a compression rod or a motor to drive a compression rod to extend and retract. The pressing unit 141 is arranged on the upper part of the pressing module 140, and a cushion block 143 can also be arranged on the lower part to limit the movement of the extremities of the person to be blood drawn when being squeezed.

[0071] The negative pressure blood sampling module includes a blood sampling container 151, an image acquisition unit 152 and a negative pressure unit. The negative pressure unit is an externally connected air extraction device. The air extraction device extracts air through a second air extraction port 159 provided on the workbench 110. The blood sampling container 151 includes a cup body 153, a movable portion 154 and a fixed portion 155. The fixed portion 155 is located at the upper portion of the cup body 153. A blood sampling opening 156 and a pressure-equalizing opening 157 are provided on the fixed portion 155. The blood sampling opening 156 is used to connect a blood sampling needle through a blood sampling tube. The pressure-equalizing opening 157 is used to balance the pressure of the cup body 153. When the negative pressure blood sampling module is turned on, the pressure-equalizing opening 157 is blocked. The movable portion 154 is located inside the cup body 153 and can move along the cup body 153. A negative pressure opening 158 is provided at the bottom of the cup body 153. The negative pressure opening 158 is connected to the second air extraction port 159 through a built-in pipeline. The cup body 153 of the blood collection container 151 is made of transparent material to facilitate the collection of image data, and a scale for easy observation can be set on the surface of the cup body 153. At the same time, a limit block 160 can be set inside the cup body 153 to limit the moving range of the moving part 154.

[0072] Specifically, the blood collection plate 120 is fixed on the upper part of the workbench 110. The blood collection plate 120 is used to support the extremities of the person to be blooded, and the blood collection plate 120 can be rotated up and down to adjust the position. The fixing module 130 is used to squeeze the extremities of the person to be blooded before blood collection, so that the position to be blooded is obvious, which is convenient for inserting the blood collection needle. The pressing module 140 is used to regularly squeeze the extremities of the person to be blooded during blood collection to promote blood collection. The negative pressure blood collection module is used to increase the blood collection rate when the blood collection rate is low. In the blood collection method based on the pressing device, S100 is used to put the extremities of the person to be blooded into a specified position to facilitate the operation of the pressing module 140 and the fixing module 130. S200 collects the size data of the extremities of the person to be blooded at the fixing module 130, which can be obtained based on the measurement of the position sensor or by setting an image acquisition device at the fixing module 130 to obtain the size data. The moving distance of the pneumatic telescopic rod 131 in the fixed module 130 is determined according to the collected size data. When squeezing, gas is filled into the pneumatic telescopic rod 131, and the pneumatic telescopic rod 131 is extended. Since the head of the pneumatic telescopic rod 131 faces the center of the circle, multiple pneumatic telescopic rods 131 are squeezed toward the center, thereby squeezing the extremity of the person to be blooded. After the pneumatic telescopic rod 131 is squeezed, the pressure sensor 132 on the surface of the pneumatic telescopic rod 131 obtains and records the pressure data. S300 determines the initial pressing force and initial pressing frequency of the pressing module 140 according to the collected pressure data. The pressing force refers to the pressure exerted by the pressing unit 141 on the surface of the extremity to be blooded when pressing. The pressing unit 141 is arranged along the blood flow direction. When pressing, multiple pressing units 141 press the extremity to be blooded in turn to promote the blood flow rate. The pressing frequency refers to the number of times the pressing unit 141 completes the pressing within a certain period of time. The higher the pressing frequency, the faster the pressing speed. The second buffer 142 provided on the surface of the pressing unit 141 and the first buffer 133 provided on the surface of the pneumatic telescopic rod 131 are used to reduce the damage to the skin surface caused by squeezing. After the blood collection needle is inserted into the blood collection position in S400, blood collection begins. At this time, the pneumatic telescopic rod 131 in the fixed module 130 contracts, and the pressing module 140 squeezes regularly to promote blood collection. During blood collection, the real-time rate of blood collection is obtained according to the image acquisition unit 152, and it is determined whether to adjust the pressing force and pressing frequency according to the real-time rate, and it is determined whether to turn on the negative pressure blood collection module according to the pressing frequency to further increase the blood collection rate.

[0073] It is understandable that the fixing module 130 is used to squeeze the extremities of the person to be blooded to clearly mark the blood collection location, and the pressing module 140 regularly squeezes the extremities during the blood collection process to promote blood collection. The negative pressure blood collection module further increases the blood collection rate when the blood collection rate is low. By precisely controlling the squeezing force and frequency, combined with negative pressure blood collection, the blood collection rate can be adjusted and improved. This embodiment reduces the impact of human factors through an automated adjustment mechanism, improves the accuracy and efficiency of the blood collection process, helps to obtain more reliable and consistent blood samples, and avoids the risk of blood sample contamination and misdiagnosis.

[0074] In some embodiments of the present application, when determining the moving distance of the fixing device according to the size data, it includes: comparing the size data Z with the preset first preset size data Z1 and the second preset size data Z2 respectively, Z1<Z2, and determining the moving distance of the fixing device according to the comparison result.

[0075] Specifically, under the first comparison result, the moving distance of the fixing device is determined to be the first moving distance Y1. Under the second comparison result, the moving distance of the fixing device is determined to be the second moving distance Y2. Under the third comparison result, the moving distance of the fixing device is determined to be the third moving distance Y3. Among them, the first comparison result is Z≤Z1, the second comparison result is Z1<Z≤Z2, and the third comparison result is Z2<Z. Y1>Y2>Y3>0.

[0076] It is understandable that the method of comparing the size data is adopted to adjust the moving distance of the pneumatic telescopic rod 131 in the fixing module 130 according to the specific conditions of the extremities of the person to be blooded, so as to achieve more accurate positioning. This is conducive to improving the application range of the blood collection device, and selecting different moving distances according to the different extremity sizes of the person to be blooded is conducive to improving the comfort of blood collection, avoiding damage caused by excessive squeezing and avoiding unclear blood collection positions due to light squeezing, which affects blood collection.

[0077] In some embodiments of the present application, when determining the initial pressing force and the initial pressing frequency of the pressing module 140 based on the pressure data, it includes: comparing the pressure data N with the pre-set first preset pressure data N1 and the second preset pressure data N2, N1<N2, and determining the initial pressing force and the initial pressing frequency based on the pressure comparison result.

[0078] Specifically, under the first pressure comparison result, the initial pressing force is determined to be the first preset initial pressing force Ny1, and the initial pressing frequency is determined to be the first preset initial pressing frequency E1. Under the second pressure comparison result, the initial pressing force is determined to be the second preset initial pressing force Ny2, and the initial pressing frequency is determined to be the second preset initial pressing frequency E2. Under the third pressure comparison result, the initial pressing force is determined to be the third preset initial pressing force Ny3, and the initial pressing frequency is determined to be the first preset initial pressing frequency E3. Among them, the first pressure comparison result is N≤N1, the second pressure comparison result is N1<N≤N2, and the third pressure comparison result is N2<N. 0<Ny1<Ny2<Ny3. 0<E1<E2<E3.

[0079] Specifically, according to the specific situation of the person to be blood drawn and the characteristics of the blood collection site, the parameters of the pressing module 140 are intelligently determined to ensure that appropriate pressure and frequency are applied to the blood vessels during the blood collection process, thereby promoting blood flow and improving blood collection efficiency while avoiding unnecessary discomfort or harm to the patient.

[0080] It is understandable that the pressure data obtained by the pressure sensor 132 on the surface of the pneumatic telescopic rod 131 when the fixed module 130 is squeezing reflects the muscle tension of the person to be blooded, and the muscle tension can further reflect the elasticity of the blood vessels. Better vascular elasticity can tolerate greater pressing force and faster pressing frequency, which can promote the rapid completion of the blood collection task. In order to avoid causing damage to the person to be blooded, the initial pressing force and pressing frequency are lower in the case of lower vascular elasticity. By selecting different initial pressing forces and frequencies according to different pressure data, the pressing module 140 can be adjusted more intelligently during the blood collection process to adapt to the conditions of blood vessels in different states, thereby ensuring the safety and effectiveness of the blood collection process and improving the success rate and efficiency of blood collection.

[0081] In some embodiments of the present application, after determining that the initial pressing force is the i-th preset initial pressing force Nyi and the initial pressing frequency is the i-th preset initial pressing frequency Ei, i=1, 2, 3, the blood collection volume per unit time is collected during blood collection to obtain the blood collection rate, the blood collection rate is compared with the standard rate, and according to the comparison result, it is judged whether to adjust the initial pressing force and the initial pressing frequency of the pressing module 140, including: based on the image acquisition unit 152, the image data of the blood collection container 151 is collected to obtain the blood collection volume per unit time during blood collection, the first blood collection rate collected is recorded as the first blood collection rate V1, and the first blood collection rate V1 is compared with the standard rate V0, and according to the comparison result, it is judged whether to adjust the initial pressing force Nyi and the initial pressing frequency Ei.

[0082] Specifically, under the first rate comparison result, it is determined that the initial pressing force Nyi and the initial pressing frequency Ei are adjusted. Under the second rate comparison result, it is determined that the initial pressing force Nyi and the initial pressing frequency Ei are not adjusted, and blood collection is completed with the initial pressing force Nyi and the initial pressing frequency Ei. Among them, the first rate comparison result is V1<V0, and the second rate comparison result is V1≥V0.

[0083] Specifically, the setting of the standard blood collection rate V0 can be adjusted according to different test items, the specific conditions of the patient and the medical needs. The image data of the blood collection container 151 is collected by the image acquisition unit 152, and the blood collection volume per unit time during blood collection is obtained by analyzing the image data. The first blood collection rate collected is recorded as the first blood collection rate V1, and it is compared with the standard rate V0. According to the comparison result, it is determined whether the first blood collection rate meets the blood collection requirements. When the requirements are not met, the pressing module 140 is adjusted to promote the blood collection rate.

[0084] It is understandable that by real-time monitoring of the blood collection rate and automatically adjusting the parameters of the pressing module 140 according to the comparison results, the blood collection process is made more intelligent and automated. This helps to ensure that the blood collection rate reaches the expected level, avoids the problem of prolonged blood collection time or insufficient blood samples due to too low a blood collection rate, thereby improving the efficiency and accuracy of blood collection and ensuring the quality of the collected blood samples.

[0085] In some embodiments of the present application, when determining that the initial pressing force Nyi and the initial pressing frequency Ei are to be adjusted, it includes: obtaining a first rate difference ΔV according to the first blood sampling rate V1 and the standard rate V0, ΔV=V1-V0, and selecting a primary adjustment coefficient A1 according to the first rate difference ΔV to adjust the initial pressing force Nyi and the initial pressing frequency Ei. The primary adjustment coefficient A1 is proportional to the first rate difference ΔV, 1.4>A1>1.

[0086] Specifically, when adjusting the initial pressing force Nyi and the initial pressing frequency Ei according to the first rate difference ΔV, a first preset rate difference ΔV11 and a second preset rate difference ΔV12 can be pre-set, ΔV11<ΔV12, when ΔV≤ΔV11, select the first preset adjustment coefficient A11 to adjust the initial pressing force Nyi and the initial pressing frequency Ei, and obtain the adjusted pressing force Nyi*A11 and the adjusted pressing frequency E i*A11. When ΔV11<ΔV≤ΔV12, select the second preset adjustment coefficient A12 to adjust the initial pressing force Nyi and the initial pressing frequency Ei, and obtain the adjusted pressing force Nyi*A12 and the adjusted pressing frequency E i*A12. When ΔV12<ΔV, select the third preset adjustment coefficient A13 to adjust the initial pressing force Nyi and the initial pressing frequency Ei, and obtain the adjusted pressing force Nyi*A13 and the adjusted pressing frequency E i*A13. The primary adjustment coefficient A1 is an adjustment coefficient matrix, and different values ​​can be selected according to the first rate difference ΔV.

[0087] It is understandable that the pressing force and pressing frequency are flexibly adjusted according to the actual blood collection rate difference to ensure that the blood collection rate can approach or reach the preset standard rate. By dynamically adjusting the pressing force and pressing frequency, blood flow can be more effectively promoted, blood collection efficiency can be improved, and the problem of insufficient blood collection or prolonged blood collection time caused by too low a blood collection rate can be avoided, thereby ensuring the quality of the collected blood samples, which is conducive to improving the accuracy and reliability of medical diagnosis and treatment.

[0088] In some embodiments of the present application, after selecting an adjustment coefficient A1 to adjust the initial pressing force Nyi and the initial pressing frequency Ei to obtain the adjusted pressing force Nyi*A1 and the adjusted pressing frequency Ei*A1, it also includes: collecting a second blood collection rate V2, and comparing the second blood collection rate V2 with the standard rate V0, and judging whether to make a second adjustment to the adjusted pressing frequency Ei*A1 according to the comparison result.

[0089] Specifically, under the third rate comparison result, it is determined that the adjusted pressing frequency Ei*A1 is adjusted twice. Under the fourth rate comparison result, it is determined that the adjusted pressing frequency Ei*A1 is not adjusted twice. The third rate comparison result is V2<V0, and the fourth rate comparison result is V2≥V0.

[0090] Specifically, after adjusting the initial pressing force and the initial pressing frequency, the second blood sampling rate V2 is collected, and according to the comparison result between the second blood sampling rate and the standard rate, it is determined whether the blood sampling requirement is met after adjusting the pressing parameters of the pressing module 140. If it is still not met, the adjusted pressing frequency is adjusted for the second time, and if it is met, the blood sampling operation is completed with the adjusted parameters.

[0091] It is understandable that by collecting the second blood sampling rate V2 and comparing it with the standard rate V0, it is determined whether the adjusted pressing parameters can meet the blood sampling requirements. If the second blood sampling rate V2 still does not meet the preset standard rate V0, that is, the rate difference still exists, then the adjusted pressing frequency will be further adjusted for a second time. Through this dynamic adjustment process, the pressing parameters can be further optimized according to the performance of the actual blood sampling rate to get as close to or as close to the preset standard rate as possible. When the adjusted parameters meet the blood sampling requirements, the final pressing force and pressing frequency can be determined to ensure the efficiency of the blood collection process and the quality reliability of the collected blood samples.

[0092] In some embodiments of the present application, when it is determined to make a secondary adjustment to the adjusted compression frequency Ei*A1, it includes: obtaining a second rate difference ΔV2 according to the second blood sampling rate V2 and the first blood sampling rate V1, ΔV2=V2-V1, and selecting a secondary adjustment coefficient A2 according to the second rate difference ΔV2 to make a secondary adjustment to the adjusted compression frequency Ei*A1. The second rate difference ΔV2 is proportional to the secondary adjustment coefficient A2, 1.2>A2>1.

[0093] Specifically, when performing the secondary adjustment, similar to the adjustment method mentioned above, the adjustment coefficient matrix is ​​still used, that is, the secondary adjustment coefficient A2, which is selected based on the difference ΔV2 between the second blood collection rate V2 and the first blood collection rate V1. ΔV2 represents the difference between the second blood collection rate and the first blood collection rate. According to this difference, an appropriate secondary adjustment coefficient A2 will be selected to make a secondary adjustment to the adjusted pressing frequency. The secondary adjustment coefficient A2 is proportional to the second rate difference ΔV2. When ΔV2 increases, the secondary adjustment coefficient A2 will also increase to adjust the pressing frequency to a greater extent, in the hope of achieving a blood collection effect that is closer to the preset standard rate. Therefore, this primary and secondary adjustment mechanism can further fine-tune the pressing parameters according to the differences in the actual blood collection rates to maximize the blood collection efficiency and the quality of the collected blood samples.

[0094] It is understandable that dynamic adjustments are made based on the performance of the actual blood collection rate to further optimize the compression parameters so that the blood collection rate is as close as possible to or reaches the preset standard rate. By quantifying the difference between the second blood collection rate and the first blood collection rate, it is possible to more accurately understand whether the adjusted compression frequency achieves the expected effect. According to the size of ΔV2, an appropriate secondary adjustment coefficient A2 is selected, and the compression frequency can be further fine-tuned through proportional adjustment to more effectively increase the blood collection rate. The secondary adjustment takes into account the change in the second blood collection rate relative to the first, and can adjust the compression parameters more finely so that the blood collection rate gradually approaches the target value, thereby improving the blood collection efficiency.

[0095] In some embodiments of the present application, when the secondary adjustment coefficient A2 is selected to perform a secondary adjustment on the adjusted pressing frequency Ei*A1, after obtaining the secondary adjusted pressing frequency Ei*A1*A2, it also includes: comparing the secondary adjusted pressing frequency Ei*A1*A2 with the pressing frequency threshold Emax to determine whether it exceeds the frequency threshold.

[0096] Specifically, under the first threshold comparison result, it is determined that the secondary adjusted pressing frequency Ei*A1*A2 does not exceed the threshold, and blood is collected at the secondary adjusted pressing frequency Ei*A1*A2. Under the second threshold comparison result, it is determined that the secondary adjusted pressing frequency Ei*A1*A2 exceeds the threshold, and blood is collected using the pressing frequency threshold Emax as the secondary adjusted pressing frequency. Among them, the first threshold comparison result is Ei*A1*A2≤Emax, and the second threshold comparison result is Ei*A1*A2>Emax.

[0097] Specifically, the value of the frequency threshold Emax suitable for a specific situation can be determined through clinical trials and experience summary. In practical applications, the set threshold can also be ensured to be within a controllable range based on the performance limitations of the pressing device. The pressing frequency is limited during the blood collection process to prevent unnecessary risks caused by excessive frequency, such as vascular damage or contamination of blood samples. By comparing the pressing frequency after the secondary adjustment with the threshold, situations that exceed the threshold can be discovered and handled in a timely manner, ensuring the safety and stability of the blood collection process.

[0098] It is understandable that the use of the pressing frequency threshold for automatic control reduces the need for manual intervention and is more intelligent and automated. The frequency can be adjusted and controlled autonomously according to actual conditions without manual intervention, which improves the efficiency and reliability of the blood collection process.

[0099] In some embodiments of the present application, after determining whether the compression frequency after the second adjustment exceeds the frequency threshold, it also includes: collecting a third blood sampling rate V3, and comparing the third blood sampling rate V3 with the standard rate V0, and determining whether to turn on the negative blood sampling module based on the comparison result.

[0100] Specifically, under the first final comparison result, it is determined that the negative pressure blood sampling module is not turned on. Under the second final comparison result, it is determined that the negative pressure blood sampling module is turned on. Among them, the first final comparison result is V3≥V0, and the second final comparison result is V3<V0.

[0101] Specifically, if the third blood collection rate V3 is greater than or equal to the standard rate V0, it indicates that the current blood collection rate has reached or exceeded the expected level, and there is no need to turn on the negative pressure blood collection module, and the current blood collection method can be continued. If the third blood collection rate V3 is less than the standard rate V0, it means that the current blood collection rate is still not ideal, and the blood collection method may need to be further optimized. At this time, the negative pressure blood collection module can be turned on to increase the blood collection rate, so as to obtain blood samples faster. When the negative pressure blood collection module is turned on, the flat pressure opening 157 on the fixed part 155 is blocked, and the air is pumped at the negative pressure opening 158 to realize the downward movement of the movable part 154 along the cup body 153 to form negative pressure blood collection.

[0102] It is understandable that dynamic adjustment is made according to the real-time blood collection rate to ensure the efficiency and accuracy of the blood collection process. The real-time adjustment method can better meet the blood collection needs of different patients and different situations, and improve the flexibility and applicability of the blood collection operation.

[0103] In some embodiments of the present application, when it is determined to turn on the negative pressure blood collection module, it includes: obtaining a third rate difference ΔV3 based on the third blood collection rate V3 and the standard rate V0, ΔV3=V0-V3, and determining the moving speed S of the moving part 154 in the negative pressure blood collection module based on the third rate difference ΔV3, and the moving speed S is proportional to the third rate difference ΔV3.

[0104] It can be understood that the moving speed of the moving part 154 can be controlled by controlling the rate of air extraction at the negative pressure opening 158. The moving speed S of the moving part 154 in the negative pressure blood collection module is determined according to the size of the third rate difference ΔV3. The moving speed S is proportional to the third rate difference ΔV3, that is, the speed increases as the difference increases. When the blood collection rate is low, the moving speed of the moving part 154 in the negative pressure blood collection module is increased, thereby increasing the negative pressure level and improving the blood collection efficiency. The moving speed of the negative pressure blood collection module is adjusted according to the difference between the actual blood collection rate and the standard rate to further ensure the stability and efficiency of the blood collection process. Accurate control of the blood collection process is achieved.

[0105] In the above embodiment, the extremities of the person to be blooded are passed through the pressing device, the size data is collected and the moving distance of the fixing device is determined, and the pressure data is collected by the pressure sensor, and then the initial pressing force and the initial pressing frequency of the pressing module are determined, so as to realize the function of adjusting the pressing force and the pressing frequency as needed. In addition, by comparing the blood collection rate with the standard rate, adjusting the pressing force and the frequency, and turning on the negative pressure blood collection module according to the frequency threshold, the feedback adjustment of the blood collection rate during blood collection is realized, and the accurate control of the blood collection rate improves the accuracy and efficiency of blood collection, reduces the influence of human factors, and is conducive to obtaining more accurate and reliable blood samples.

[0106] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0107] The present application is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0108] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0109] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A computer program storage medium, characterized in that: The storage medium stores computer executable instructions, which, when executed, cause the pressing device to perform the following steps: The extremity of the person to be blooded is placed on the blood collection board through the pressing module and the fixing module to expose the position to be blooded; Collecting the size data of the extremities of the person to be blood-collected at the fixed module, determining the moving distance of the fixed module according to the size data, and collecting pressure data based on the pressure sensor after the fixed module completes the movement; Determine the initial pressing force and initial pressing frequency of the pressing module according to the pressure data; When collecting blood, the blood collection volume per unit time is collected to obtain a blood collection rate, the blood collection rate is compared with a standard rate, and according to the comparison result, it is determined whether to adjust the initial pressing force and the initial pressing frequency of the pressing module, and according to the comparison result of the pressing frequency after the secondary adjustment and the frequency threshold, it is determined whether to collect blood at the pressing frequency after the secondary adjustment; After determining whether the pressing frequency after the secondary adjustment exceeds the frequency threshold, it also includes: Based on the comparison result of the pressing frequency and the frequency threshold, blood is collected, a third blood collection rate V3 is collected, and the third blood collection rate V3 is compared with the standard rate V0, and it is determined whether to turn on the negative pressure blood collection module according to the comparison result; Under the first final comparison result, it is determined that the negative pressure blood sampling module is not to be turned on; Under the second final comparison result, it is determined to turn on the negative pressure blood sampling module; Wherein, the first final comparison result is V3≥V0, and the second final comparison result is V3<V0; When it is determined to start the negative pressure blood sampling module, the method includes: According to the third blood sampling rate V3 and the standard rate V0, a ​​third rate difference ΔV3 is obtained, ΔV3=V0-V3, and according to the third rate difference ΔV3, a moving speed S of the moving part in the negative pressure blood sampling module is determined, and the moving speed S is proportional to the third rate difference ΔV3; The pressing device includes a workbench, a blood collection plate, a fixing module, a pressing module and a negative pressure blood collection module; wherein, The fixing module is fixedly arranged on the upper surface of the workbench, and the fixing module is an annular structure. The fixing module includes at least four pneumatic telescopic rods, and the pneumatic telescopic rods are in the same plane and are evenly arranged within 360 degrees. The heads of the pneumatic telescopic rods face the center of the circle, and the heads of the pneumatic telescopic rods are also provided with the pressure sensor; the fixing module also includes a first buffer portion, and the first buffer portion wraps the pneumatic telescopic rod; The pressing module is arranged at one side of the fixing module and close to the blood sampling position, at least two pressing units are arranged in the pressing module, and a second buffer portion is arranged on the surface of the pressing unit; The negative pressure blood collection module includes a blood collection container, an image acquisition unit and a negative pressure unit. The blood collection container includes a cup body, a movable part and a fixed part. The fixed part is located at the upper part of the cup body. A blood collection opening and a flat pressure opening are provided on the fixed part. The movable part is located inside the cup body and can move along the cup body. A negative pressure opening is provided at the bottom of the cup body.

2. The computer program storage medium according to claim 1, characterized in that When determining the moving distance of the fixing device according to the dimension data, it includes: The dimension data Z is compared with the first preset dimension data Z1 and the second preset dimension data Z2 respectively, Z1<Z2, and the moving distance of the fixing device is determined according to the comparison result; Under the first comparison result, the moving distance of the fixing device is determined to be a first moving distance Y1; Under the second comparison result, the moving distance of the fixing device is determined to be a second moving distance Y2; Under the third comparison result, the moving distance of the fixing device is determined to be a third moving distance Y3; Among them, the first comparison result is Z≤Z1, the second comparison result is Z1<Z≤Z2, and the third comparison result is Z2<Z; Y1>Y2>Y3>0.

3. The computer program storage medium according to claim 2, characterized in that When determining the initial pressing force and the initial pressing frequency of the pressing module according to the pressure data, it includes: Compare the pressure data N with the first preset pressure data N1 and the second preset pressure data N2 respectively, N1<N2, and determine the initial pressing force and the initial pressing frequency according to the pressure comparison result; Under the first pressure comparison result, the initial pressing force is determined to be the first preset initial pressing force Ny1, and the initial pressing frequency is determined to be the first preset initial pressing frequency E1; Under the second pressure comparison result, the initial pressing force is determined to be the second preset initial pressing force Ny2, and the initial pressing frequency is determined to be the second preset initial pressing frequency E2; Under the third pressure comparison result, the initial pressing force is determined to be the third preset initial pressing force Ny3, and the initial pressing frequency is determined to be the first preset initial pressing frequency E3; Among them, the first pressure comparison result is N≤N1, the second pressure comparison result is N1<N≤N2, and the third pressure comparison result is N2<N; 0<Ny1<Ny2<Ny3; 0<E1<E2<E3.

4. The computer program storage medium according to claim 3, characterized in that After determining that the initial pressing force is the i-th preset initial pressing force Nyi and the initial pressing frequency is the i-th preset initial pressing frequency Ei, i=1, 2, 3, the blood sampling volume per unit time is collected during blood sampling to obtain a blood sampling rate, the blood sampling rate is compared with a standard rate, and whether to adjust the initial pressing force and the initial pressing frequency of the pressing module is determined according to the comparison result, including: Based on the image data of the blood sampling container collected by the image acquisition unit, the blood sampling volume per unit time is obtained, the first blood sampling rate collected is recorded as the first blood sampling rate V1, and the first blood sampling rate V1 is compared with the standard rate V0, and it is determined whether to adjust the initial pressing force Nyi and the initial pressing frequency Ei according to the comparison result; Under the first rate comparison result, it is determined that the initial pressing force Nyi and the initial pressing frequency Ei are adjusted; Under the second rate comparison result, it is determined that the initial pressing force Nyi and the initial pressing frequency Ei are not adjusted, and blood sampling is completed with the initial pressing force Nyi and the initial pressing frequency Ei; The first rate comparison result is V1<V0, and the second rate comparison result is V1≥V0.

5. The computer program storage medium according to claim 4, characterized in that When determining that the initial pressing force Nyi and the initial pressing frequency Ei are adjusted, it includes: According to the first blood sampling rate V1 and the standard rate V0, the first rate difference ΔV is obtained, ΔV=V1-V0, and according to the first rate difference ΔV, a primary adjustment coefficient A1 is selected to adjust the initial pressing force Nyi and the initial pressing frequency Ei; the primary adjustment coefficient A1 is proportional to the first rate difference ΔV, 1.4>A1>1.

6. The computer program storage medium according to claim 5, characterized in that When the adjustment coefficient A1 is selected to adjust the initial pressing force Nyi and the initial pressing frequency Ei to obtain the adjusted pressing force Nyi*A1 and the adjusted pressing frequency Ei*A1, the method further includes: Collecting a second blood sampling rate V2, and comparing the second blood sampling rate V2 with the standard rate V0, and judging whether to make a second adjustment to the adjusted pressing frequency Ei*A1 according to the comparison result; Based on the third rate comparison result, it is determined that the adjusted pressing frequency Ei*A1 is adjusted for a second time; Under the fourth rate comparison result, it is determined that the adjusted pressing frequency Ei*A1 is not to be adjusted for the second time; Among them, the third rate comparison result is V2<V0, and the fourth rate comparison result is V2≥V0.

7. The computer program storage medium according to claim 6, characterized in that When it is determined that the adjusted pressing frequency Ei*A1 is to be adjusted for the second time, it includes: According to the second blood sampling rate V2 and the first blood sampling rate V1, the second rate difference ΔV2 is obtained, ΔV2=V2-V1, and the secondary adjustment coefficient A2 is selected according to the second rate difference ΔV2 to perform secondary adjustment on the adjusted pressing frequency Ei*A1; the second rate difference ΔV2 is proportional to the secondary adjustment coefficient A2, 1.2>A2>1.

8. The computer program storage medium according to claim 7, characterized in that When the secondary adjustment coefficient A2 is selected to perform secondary adjustment on the adjusted pressing frequency Ei*A1, after obtaining the secondary adjusted pressing frequency Ei*A1*A2, the method further includes: Compare the secondary adjusted pressing frequency Ei*A1*A2 with the pressing frequency threshold Emax to determine whether it exceeds the frequency threshold; Under the first threshold comparison result, it is determined that the secondary adjusted pressing frequency Ei*A1*A2 does not exceed the threshold, and blood is collected at the secondary adjusted pressing frequency Ei*A1*A2; Under the second threshold comparison result, it is determined that the secondary adjusted pressing frequency Ei*A1*A2 exceeds the threshold, and the pressing frequency threshold Emax is used as the secondary adjusted pressing frequency for blood sampling; Among them, the first threshold comparison result is Ei*A1*A2≤Emax, and the second threshold comparison result is Ei*A1*A2>Emax.

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