An automatic mixing mechanism and method for trace blood

Abstract

The present invention relates to the technical field of blood cell analyzers, and particularly relates to a micro blood automatic mixing mechanism and a mixing method; the micro blood automatic mixing mechanism includes a mixing structure, a micro blood test tube, and a mounting seat. The mixing structure includes a vibration motor, a vibration rod, a first vibration isolation member, a second vibration isolation member, a vibration rod mounting sleeve, and a vibration rod fixing seat. The vibration motor is arranged on the upper side of the vibration rod and is in interference fit or adhesively connected with the vibration rod. The first vibration isolation member is arranged inside the vibration rod mounting sleeve. The vibration rod mounting sleeve is connected to the vibration rod fixing seat and is arranged on the upper side of the vibration rod fixing seat. The vibration rod fixing seat is arranged on the upper side of the mounting seat. The structure of the mixing mechanism is improved. Based on the vibration motor, through the vibration of the vibration motor, the vibration is transmitted to the micro blood test tube, so that the blood sample in the micro blood test tube can be fully mixed, and thus it is convenient for subsequent inspection work.

Description

Technical Field

[0001] The present invention relates to the technical field of blood cell analyzers, and in particular to a micro - blood automatic mixing mechanism and a mixing method. Background Art

[0002] Blood cell analysis requires collecting a certain amount of blood samples from the body of the object to be tested, including venous blood samples and micro - blood samples. Due to the particularity of pediatric patients and emergency patients, most hospitals currently use micro - blood samples. Generally, after the micro - blood sample is collected, it needs to be placed for at least ten minutes before detection. Since the specific gravity of blood cells and plasma is different, the micro - blood sample will stratify after standing for a period of time. If directly detected, it will have a great impact on the results. Therefore, before the blood sample is detected, it needs to be mixed evenly to obtain more accurate results.

[0003] Currently, there is no standard for mixing micro - blood samples. The vast majority of hospitals still use manual mixing or special mixing instruments for mixing. The mixing operation has great randomness, and the mixing effect is different each time. There is a risk of insufficient mixing. Moreover, both manual mixing and using special mixing instruments for mixing require additional manual operations, which greatly limits the detection efficiency and the number of batch measurements at one time. Summary of the Invention

[0004] The purpose of the present invention is to provide a micro - blood automatic mixing mechanism and a mixing method to solve the problems in the prior art that manual mixing may lead to insufficient mixing and takes a long time.

[0005] To achieve the above - mentioned purpose, the present invention provides a micro - blood automatic mixing mechanism. The micro - automatic mixing mechanism includes a mixing structure, a micro - blood test tube, and a mounting base. The mixing structure is arranged on the upper side of the mounting base and is installed and matched with the mounting base. The micro - blood test tube is arranged on the upper side of the mixing structure and is matched with the mixing structure.

[0006] The mixing structure includes a vibration motor, a vibration rod, a first vibration isolation member, a second vibration isolation member, a vibration rod mounting sleeve, and a vibration rod fixing seat. The vibration motor is arranged on the upper side of the vibration rod and is in interference fit or adhesively connected with the vibration rod. The first vibration isolation member is arranged inside the vibration rod mounting sleeve. The second vibration isolation member is arranged on the upper side of the vibration rod fixing seat. The vibration rod mounting sleeve is connected with the vibration rod fixing seat and is arranged on the upper side of the vibration rod fixing seat. The vibration rod fixing seat is arranged on the upper side of the mounting base.

[0007] After the mixing structure is installed on the mounting base and cooperates with the micro blood tube, through the vibration of the mixing structure, the micro blood sample in the micro blood tube is fully mixed. After the mixing is completed, the micro blood tube can be taken out for subsequent sampling tests, and so on. The vibration motor is installed on the vibration rod. When the vibration motor vibrates, the side of the vibration motor or the side of the vibration rod contacts the inner wall of the lower part of the micro blood tube, and the tube rotates through frictional coupling to complete the mixing work. The first vibration isolation member is used to reduce the vibration transmitted to the vibration rod mounting sleeve and then to the machine body; it deforms to make the vibration rod reach an appropriate amplitude. The second vibration isolation member is also used to reduce the vibration transmitted to the vibration rod fixing seat and then to the machine body; it deforms to make the vibration rod reach an appropriate amplitude. The vibration rod mounting sleeve is used to cooperate with the installation of the vibration rod, and the vibration rod fixing seat is installed on the mounting base to cooperate with the installation work of the vibration rod.

[0008] Among them, the vibration rod is provided with a receiving cavity and is hollow inside. The receiving cavity is arranged inside the vibration rod, and the receiving cavity is used to install the vibration motor. The internal hollow is arranged along the length extension direction of the vibration rod, and the internal hollow is used to install the wiring of the vibration motor.

[0009] The receiving cavity is used to install the vibration motor, and the internal hollow is used to arrange the wiring of the vibration motor.

[0010] Among them, the first vibration isolation member is a flexible member. The first vibration isolation member surrounds the vibration rod, and the first vibration isolation member also connects the vibration rod mounting sleeve and the vibration rod. The first vibration isolation member reduces the vibration transmitted to the vibration rod mounting sleeve by deforming.

[0011] The first vibration isolation member deforms under the action of vibration to reduce the vibration transmitted to the vibration rod mounting sleeve and make the vibration rod reach an appropriate amplitude.

[0012] Among them, the second vibration isolation member is also a flexible member. The second vibration isolation member fits with the end of the vibration rod, and the second vibration isolation member is arranged at the end of the vibration rod. The second vibration isolation member reduces the vibration transmitted to the vibration rod fixing seat by deforming.

[0013] The second vibration isolation member deforms under the action of vibration to reduce the vibration transmitted to the vibration rod fixing seat and make the vibration rod reach an appropriate amplitude.

[0014] Among them, the mounting base is arranged outside the vibration rod fixing seat, and the mounting base is used to install the mixing structure.

[0015] The mounting base is used to mount the mixing structure.

[0016] Wherein, the vibration motor has an upper end face and a side end face. The upper end face is disposed on the upper side of the vibration motor and abuts against the micro blood tube. The side end face is disposed on the outer side of the vibration motor, and the side end face cooperates with the micro blood tube.

[0017] The upper end face is used to cooperate with the micro blood tube. During the vibration of the vibration motor, the micro blood tube remains in contact with the upper end face. The side end face cooperates with the vibration of the vibration motor, and transmits the vibration of the vibration motor through the side end face, so that the micro blood tube can rotate while vibrating.

[0018] The present invention also provides a method for automatically mixing micro blood, which adopts the above-mentioned automatic mixing mechanism. The method for automatically mixing micro blood includes the following steps:

[0019] Place the micro blood tube on the vibration rod. The sum of the exposed length of the vibration motor and the length of the vibration rod is greater than the depth of the lower accommodation cavity of the micro blood tube, so that the vibration rod and the vibration motor are inserted into the accommodation cavity, and the upper end face of the vibration motor abuts against the inside of the accommodation cavity;

[0020] Start the vibration motor, so that the micro blood tube vibrates and rotates with the vibration motor to mix the micro blood.

[0021] Wherein, the maximum gap between the accommodation cavity of the micro blood tube and the vibration rod is less than the amplitude of the vibration rod at the corresponding position, so that the vibration rod can contact the inner wall of the accommodation cavity of the micro blood tube when vibrating.

[0022] Wherein, the step of starting the vibration motor, so that the micro blood tube vibrates and rotates with the vibration motor to mix the micro blood includes:

[0023] Start the vibration motor. The vibration motor rotates in any direction for 1 second to make the blood sample in the micro blood tube rise, and then stops for 2 seconds to make the blood sample in the micro blood tube fall back. Repeat the rotation and stop 5 times like this; or

[0024] Start the vibration motor. The vibration motor rotates in any direction for 1 second and stops for 2 seconds; then rotates in the direction opposite to any direction for 1 second and stops for 2 seconds. Repeat the forward rotation and reverse rotation 5 times like this.

[0025] Wherein, the method for automatically mixing micro blood further includes:

[0026] Adjust the driving parameters of the vibration motor, including the input voltage and input current, according to the rotation condition to achieve different degrees of mixing effect.

[0027] An automatic micro - blood mixing mechanism and a mixing method of the present invention improve the structure of the mixing mechanism. Based on the vibration motor, through the vibration of the vibration motor, the vibration is transmitted to the micro - blood test tube, so that the blood sample in the micro - blood test tube can be fully mixed, which is convenient for subsequent inspection work. Brief Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is an axonometric structure diagram of an automatic micro - blood mixing mechanism provided by the present invention.

[0030] Figure 2 It is an axonometric structure diagram of an automatic micro - blood mixing mechanism provided by the present invention without a micro - blood test tube.

[0031] Figure 3 It is an exploded structure diagram of the mixing structure of an automatic micro - blood mixing mechanism provided by the present invention.

[0032] Figure 4 It is a sectional structure diagram of the mixing structure of an automatic micro - blood mixing mechanism provided by the present invention.

[0033] Figure 5 It is a sectional structure diagram of a micro - blood test tube of an automatic micro - blood mixing mechanism provided by the present invention.

[0034] Figure 6 It is a sectional structure diagram of an automatic micro - blood mixing mechanism provided by the present invention in an un - vibrated state.

[0035] Figure 7 It is a maximum - angle diagram of a micro - blood test tube of an automatic micro - blood mixing mechanism provided by the present invention in an un - vibrated state.

[0036] Figure 8 It is a force and maximum - trajectory diagram of a vibrating rod of an automatic micro - blood mixing mechanism provided by the present invention.

[0037] Figure 9 It is a sectional structure diagram of a vibrating rod of an automatic micro - blood mixing mechanism provided by the present invention in a maximum - amplitude state.

[0038] Figure 10 It is a simplified force diagram of a micro blood tube of a micro blood automatic mixing mechanism provided by the present invention.

[0039] Figure 11 It is a simplified force diagram of a blood sample in a vibrating state of a micro blood automatic mixing mechanism provided by the present invention.

[0040] Figure 12 It is a schematic diagram of the maximum amplitude of a mixing mechanism in a vibrating state of a micro blood automatic mixing mechanism provided by the present invention.

[0041] Figure 13 It is a schematic diagram of the steps of a micro blood automatic mixing method provided by the present invention.

[0042] 1 - mixing structure, 2 - micro blood tube, 3 - mounting base, 111 - vibration motor, 112 - vibration rod, 113 - vibration rod mounting sleeve, 114 - first vibration isolation member, 115 - second vibration isolation member, 116 - vibration rod fixing seat, 1111 - upper end face, 1112 - side end face, 1121 - accommodation cavity, 1122 - internally hollow, 21 - blood sample accommodation cavity, 22 - lower accommodation cavity, 221 - support point, 222 - inner wall. Detailed Embodiment

[0043] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0044] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0045] Please refer to Figures 1 to 12, the present invention provides a micro - blood automatic mixing mechanism. The micro - blood automatic mixing mechanism includes a mixing structure 1, a micro - blood test tube 2, and a mounting base 3. The mixing structure 1 is disposed on the upper side of the mounting base 3 and is installed and cooperated with the mounting base 3. The micro - blood test tube 2 is disposed on the upper side of the mixing structure 1 and is cooperated with the mixing structure 1;

[0046] The mixing structure 1 includes a vibration motor 111, a vibration rod 112, a first vibration isolation member 114, a second vibration isolation member 115, a vibration rod mounting sleeve 113, and a vibration rod fixing seat 116. The vibration motor 111 is disposed on the upper side of the vibration rod 112 and is in interference fit or adhesively connected with the vibration rod 112. The first vibration isolation member 114 is disposed inside the vibration rod mounting sleeve 113. The second vibration isolation member 115 is disposed on the upper side of the vibration rod fixing seat 116. The vibration rod mounting sleeve 113 is connected to the vibration rod fixing seat 116 and is disposed on the upper side of the vibration rod fixing seat 116. The vibration rod fixing seat 116 is disposed on the upper side of the mounting base 3.

[0047] In this embodiment, after the mixing structure 1 is installed on the mounting base 3 and cooperates with the micro - blood test tube 2, through the vibration of the mixing structure 1, the micro - blood sample in the micro - blood test tube 2 is fully mixed. After the mixing is completed, the micro - blood test tube 2 can be taken out for subsequent sampling tests, and so on. The vibration motor 111 is installed on the vibration rod 112. When the vibration motor 111 vibrates, the side of the vibration motor 111 or the side of the vibration rod 112 comes into contact with the inner wall 222 of the lower part of the micro - blood test tube 2, and the test tube rotates through frictional coupling to complete the mixing work. The first vibration isolation member 114 is used to reduce the vibration transmitted to the vibration rod mounting sleeve 113 and then to the body, causing deformation to make the vibration rod 112 reach an appropriate amplitude. The second vibration isolation member 115 is also used to reduce the vibration transmitted to the vibration rod fixing seat 116 and then to the body, causing deformation to make the vibration rod 112 reach an appropriate amplitude. The vibration rod mounting sleeve 113 is used to cooperate with the installation of the vibration rod 112, and the vibration rod fixing seat 116 is installed on the mounting base 3 to cooperate with the installation work of the vibration rod 112.

[0048] Further, the vibration rod 112 is provided with a receiving cavity 1121 and is internally hollow 1122. The receiving cavity 1121 is disposed inside the vibration rod 112 and is used to install the vibration motor 111. The internal hollow 1122 is disposed along the length extension direction of the vibration rod 112 and is used to install the wiring of the vibration motor 111.

[0049] In this embodiment, the accommodation cavity 1121 is used to install the vibration motor 111, and the internally hollow 1122 is used to arrange the wiring of the vibration motor 111.

[0050] Furthermore, the first vibration isolation member 114 is a flexible member. The first vibration isolation member 114 surrounds the vibration rod 112, and the first vibration isolation member 114 is also connected to the vibration rod mounting sleeve 113 and the vibration rod 112. The first vibration isolation member 114 reduces the vibration transmitted to the vibration rod mounting sleeve 113 by deforming.

[0051] In this embodiment, the first vibration isolation member 114 deforms under the action of vibration to reduce the vibration transmitted to the vibration rod mounting sleeve 113, so that the vibration rod 112 reaches an appropriate amplitude.

[0052] Furthermore, the second vibration isolation member 115 is also a flexible member. The second vibration isolation member 115 fits with the end of the vibration rod 112, and the second vibration isolation member 115 is arranged at the end of the vibration rod 112. The second vibration isolation member 115 reduces the vibration transmitted to the vibration rod fixing seat 116 by deforming.

[0053] In this embodiment, the second vibration isolation member 115 deforms under the action of vibration to reduce the vibration transmitted to the vibration rod fixing seat 116, so that the vibration rod 112 reaches an appropriate amplitude.

[0054] Furthermore, the mounting seat 3 is arranged outside the vibration rod fixing seat 116, and the mounting seat 3 is used to mount the mixing structure 1.

[0055] In this embodiment, the mounting seat 3 is used to mount the mixing structure 1.

[0056] Furthermore, the vibration motor 111 has an upper end face 1111 and a side end face 1112. The upper end face 1111 is arranged on the upper side of the vibration motor 111 and abuts against the micro blood tube 2. The side end face 1112 is arranged outside the vibration motor 111, and the side end face 1112 cooperates with the micro blood tube 2.

[0057] In this embodiment, the upper end face 1111 is used to cooperate with the micro blood tube 2. During the vibration of the vibration motor 111, the micro blood tube 2 remains in contact with the upper end face 1111. The side end face 1112 cooperates with the vibration of the vibration motor 111, and transmits the vibration of the vibration motor 111 through the side end face 1112, so that the micro blood tube 2 can rotate while vibrating.

[0058] Further, the micro blood tube 2 is provided with a blood sample containing cavity 21 and a lower containing cavity 22. The blood sample containing cavity 21 is arranged inside the lower containing cavity 22, and the blood sample containing cavity 21 abuts against the vibration motor 111, while the lower containing cavity 22 cooperates with the vibration motor 111;

[0059] The lower containing cavity 22 is provided with a support point 221 and an inner wall 222. The lower containing cavity 22 abuts against the vibration motor 111 through the support point 221, and the inner wall 222 is arranged inside the lower containing cavity 22, and the inner wall 222 is used to transmit the vibration generated by the vibration motor 111;

[0060] The gap between the inner wall 222 and the vibration rod 112 is smaller than the amplitude of the vibration rod 112.

[0061] In this embodiment, the blood sample containing cavity 21 is used to place the blood sample, and the lower containing cavity 22 cooperates with the vibration motor 111 to transmit the vibration of the vibration motor 111 to the micro blood tube 2. The support point 221 is used to abut against the vibration motor 111, and the inner wall 222 is used to cooperate with the vibration transmitted by the vibration motor 111 to vibrate the blood sample containing cavity 21. The gap between the inner wall 222 and the vibration rod 112 is smaller than the amplitude of the vibration rod 112. The sum of the exposed length of the vibration motor 111 and the length of the vibration rod 112 is greater than the depth of the lower containing cavity 22 of the micro blood tube 2. As Figure 8 、 9 shown, when the vibration motor 111 vibrates, a centrifugal force F1 is generated. Since the vibration rod 112 is installed with the first vibration isolation member 114 and the second vibration isolation member 115, and both are flexible members, they deform under the action of the centrifugal force F1, and the vibration rod 112 forms a certain angle α with the center line during installation; at the same time, a torque M1 is generated; by controlling the input parameters of the vibration motor 111 to adjust the vibration frequency, different sizes of centrifugal force F1 and torque M1 can be obtained; the centrifugal force F1 makes the micro blood tube 2 and the blood sample vibrate, and the torque M1 drives the micro blood tube 2 and the blood sample to rotate through friction, increasing the torque of the blood sample; the rising height of the blood sample can be controlled by adjusting the magnitudes of the centrifugal force and the torque to avoid excessive test errors;

[0062] As Figure 7 shown, when the mixing structure 1 operates, the maximum angle θ formed by the micro blood tube 2 relative to the original central axis is less than or equal to 45°; where θ is the sum of the angle α generated by the vibration of the vibration rod 112 and the maximum angle β that can be formed when the micro blood tube 2 is placed on the mixing structure 1. That is, the mixing structure 1 vibrates to drive the micro blood tube 2 to vibrate and rotate, achieving the purpose of mixing the blood sample.

[0063] Please refer to Figure 13 , the present invention also proposes a method for automatically mixing trace blood, which adopts the above-mentioned automatic mixing mechanism. The method for automatically mixing trace blood includes the following steps:

[0064] S101: Place the trace blood test tube 2 on the vibrating rod 112. The sum of the exposed length of the vibrating motor 111 and the length of the vibrating rod 112 is greater than the depth of the lower accommodating cavity 22 of the trace blood test tube 2, so that the vibrating rod 112 and the vibrating motor 111 are inserted into the accommodating cavity 1121, and the upper end surface 1111 of the vibrating motor 111 abuts against the inner part of the accommodating cavity 1121;

[0065] S102: Start the vibrating motor 111 to vibrate and rotate the trace blood test tube 2 along with the vibrating motor 111 for mixing the trace blood.

[0066] Furthermore, the maximum gap between the accommodating cavity 1121 of the trace blood test tube 2 and the vibrating rod 112 is less than the amplitude of the vibrating rod 112 at the corresponding position, so that the vibrating rod 112 can contact the inner wall of the accommodating cavity 1121 of the trace blood test tube 2 when vibrating.

[0067] Furthermore, the step of starting the vibrating motor 111 to vibrate and rotate the trace blood test tube 2 along with the vibrating motor 111 for mixing the trace blood includes:

[0068] Start the vibrating motor 111, the vibrating motor 111 rotates in any direction for 1 second to make the blood sample in the trace blood test tube 2 rise, and then stop for 2 seconds to make the blood sample in the trace blood test tube 2 fall back. Repeat the rotation and stop 5 times like this; or

[0069] Start the vibrating motor 111, the vibrating motor 111 rotates in any direction for 1 second and stops for 2 seconds; then rotate in the direction opposite to any direction for 1 second and stop for 2 seconds. Repeat the forward and reverse rotations 5 times like this.

[0070] Furthermore, the method for automatically mixing trace blood also includes:

[0071] According to the rotation condition, adjust the driving parameters of the vibrating motor 111, the input voltage and input current, so as to achieve different degrees of mixing effects.

[0072] The operation process is as follows: Start the vibrating motor 111, the vibrating motor 111 rotates to generate vibration, and the force condition during its rotation is as Figure 8As shown, when rotating, a centrifugal force F1 and a torque M1 are generated. The direction of the centrifugal force is outward along the line connecting the center of the trajectory circle and the center of the vibration motor 111, and changes as the vibration motor 111 rotates; the direction of the torque is the same as the rotation direction of the motor; both the first vibration isolation member 114 and the second vibration isolation member 115 are flexible members, and deform under the action of the centrifugal force F1. The vibration rod 112 forms a certain angle α with the center line during installation, as Figure 9 shown; the trajectory at the outermost point of the vibration motor 111 is as Figure 8 shown in; since the gap between the micro blood tube 2 and the vibration rod 112 is smaller than the amplitude generated by the vibration motor 111, the vibration motor 111 contacts the micro blood tube 2, transfers the force and torque to the micro blood tube 2, and makes the micro blood tube 2 move. The force diagram at the contact point on the inner wall 222 of the lower accommodation cavity 22 of the micro blood tube 2 is as Figure 10 shown. The force F2 acting outward along the line connecting the center of the micro blood tube 2 and the contact point and the torque M1 generated by the centrifugal force F1 act at the contact point to generate a tangential frictional force F3, thus generating a torque M2 that causes the micro blood tube 2 to rotate, making the micro blood tube 2 rotate while vibrating. Due to the adhesion between the inner wall 222 of the micro blood tube 2 and the blood sample and the internal frictional force within the liquid, the rotation of the micro blood tube 2 will drive the internal blood sample to rotate. The simplified force diagram when the blood sample rotates is as Figure 11 shown. When the rotating blood sample generates a centrifugal force F6, a reaction force F4 generated by the test tube wall, and its own gravity F5, when the component of the centrifugal force F6 in the direction of the test tube wall is greater than the component of the blood sample's own gravity in the direction of the test tube wall, the liquid level will rise along the test tube wall. Therefore, during vibration, the vibration frequency can be controlled by controlling the input parameters of the vibration motor 111, and further control the rotation speed of the test tube and the magnitude of the centrifugal force F6, so that the liquid level does not rise too high, avoiding an increase in the test error. While the blood sample rotates, it vibrates due to the action of the vibration motor 111 inside, making the blood sample mix more fully.

[0073] After the test tube vibrates for a certain period of time, the test tube is taken out by the test tube clamp or manually and sent to the blood sample detection location for sampling and testing.

[0074] A micro blood automatic mixing mechanism and its mixing method of the present invention improve the structure of the mixing mechanism. Based on the vibration motor 111, through the vibration of the vibration motor 111, the vibration is transmitted to the micro blood tube 2, so that the blood sample in the micro blood tube 2 can be fully mixed, which is convenient for subsequent inspection work.

[0075] The above-disclosed is only a preferred embodiment of the present invention. Of course, the scope of rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. An automatic mixing mechanism for a trace amount of blood, characterized in that, the automatic mixing mechanism for a trace amount of blood includes a mixing structure, a trace amount of blood test tube and a mounting seat. The mixing structure is arranged on the upper side of the mounting seat and is installed and matched with the mounting seat. The trace amount of blood test tube is arranged on the upper side of the mixing structure and is matched with the mixing structure; the mixing structure includes a vibration motor, a vibration rod, a first vibration isolation member, a second vibration isolation member, a vibration rod mounting sleeve and a vibration rod fixing seat. The vibration motor is arranged on the upper side of the vibration rod and is in interference fit or adhesively connected with the vibration rod. The first vibration isolation member is arranged inside the vibration rod mounting sleeve. The second vibration isolation member is arranged on the upper side of the vibration rod fixing seat. The vibration rod mounting sleeve is connected to the vibration rod fixing seat and is arranged on the upper side of the vibration rod fixing seat. The vibration rod fixing seat is arranged on the upper side of the mounting seat; the trace amount of blood test tube is provided with a blood sample containing cavity and a lower containing cavity. The blood sample containing cavity is arranged inside the lower containing cavity, and the blood sample containing cavity abuts against the vibration motor, while the lower containing cavity cooperates with the vibration motor; the lower containing cavity is provided with a support point and an inner wall. The lower containing cavity abuts against the vibration motor through the support point, and the inner wall is arranged inside the lower containing cavity and is used to transmit the vibration generated by the vibration motor.

2. The automatic mixing mechanism for a trace amount of blood according to claim 1, characterized in that, the vibration rod is provided with a containing cavity and is hollow inside. The containing cavity is arranged inside the vibration rod and is used to install the vibration motor. The hollow inside is arranged along the length extension direction of the vibration rod and is used to install the wiring of the vibration motor.

3. The automatic mixing mechanism for a trace amount of blood according to claim 2, characterized in that, the first vibration isolation member is a flexible member. The first vibration isolation member surrounds the vibration rod and is also connected to the vibration rod mounting sleeve and the vibration rod. The first vibration isolation member reduces the vibration transmitted to the vibration rod mounting sleeve by deforming.

4. The automatic mixing mechanism for a trace amount of blood according to claim 3, characterized in that, the second vibration isolation member is also a flexible member. The second vibration isolation member fits with the end of the vibration rod and is arranged at the end of the vibration rod. The second vibration isolation member reduces the vibration transmitted to the vibration rod fixing seat by deforming.

5. The automatic mixing mechanism for a trace amount of blood according to claim 4, characterized in that, the mounting seat is arranged outside the vibration rod fixing seat, and the mounting seat is used to install the mixing structure.

6. The automatic mixing mechanism for a trace amount of blood according to claim 5, characterized in that, the vibration motor has an upper end face and a side end face. The upper end face is arranged on the upper side of the vibration motor and abuts against the trace amount of blood test tube. The side end face is arranged on the outside of the vibration motor and cooperates with the trace amount of blood test tube.

7. An automatic mixing method for a trace amount of blood, using the automatic mixing mechanism according to claim 5, It is characterized in that The automatic mixing method for trace blood includes the following steps: Place the trace blood test tube on the vibrating rod, insert the vibrating rod and the vibrating motor into the inner part of the accommodating cavity, the sum of the exposed length of the vibrating motor and the length of the vibrating rod is greater than the depth of the lower accommodating cavity of the trace blood test tube, and make the upper end surface of the vibrating motor abut against the inner part of the accommodating cavity; Start the vibrating motor to make the trace blood test tube vibrate and rotate with the vibrating motor to mix the trace blood.

8. The automatic mixing method for trace blood according to claim 7, It is characterized in that The maximum gap between the accommodating cavity of the trace blood test tube and the vibrating rod is less than the amplitude at the corresponding position of the vibrating rod, so that the vibrating rod can contact the inner wall of the accommodating cavity of the trace blood test tube when vibrating.

9. The step of starting the vibrating motor to make the trace blood test tube vibrate and rotate with the vibrating motor to mix the trace blood in the automatic mixing method for trace blood according to claim 7 or 8 includes: Start the vibrating motor, the vibrating motor rotates in any direction for 1 second to make the blood sample in the trace blood test tube rise, and then stop for 2 seconds to make the blood sample in the trace blood test tube fall back, and repeat the rotation and stop 5 times; or Start the vibrating motor, the vibrating motor rotates in any direction for 1 second and stops for 2 seconds; then rotate in the direction opposite to any direction for 1 second and stop for 2 seconds, and repeat the forward rotation and reverse rotation 5 times in total.

10. The automatic mixing method for trace blood according to claim 9, It is characterized in that The automatic mixing method for trace blood further includes: Adjust the driving parameters of the vibrating motor, input voltage and input current according to the rotation condition to achieve different degrees of mixing effects.

Images