Plasma separating device

Abstract

The invention discloses a plasma separation device which comprises a shell, a plasma separation device body, a plasma separation device body and a plasma separation device body, a cavity is formed in the shell, an opening is formed in the cavity, and a sealing mechanism is hinged to the opening; the supporting platform is arranged in the cavity, and a plurality of limiting pieces which are connected in a sliding mode are arranged on the supporting platform; the magnetic attraction fixing piece is arranged in the cavity, one end of the magnetic attraction fixing piece is fixedly connected with the sealing mechanism in an inserted mode, and the magnetic attraction fixing piece faces the multiple limiting pieces respectively; the plurality of color sensors are respectively fixed on the bottoms of the corresponding limiting pieces; the plurality of pushing parts are respectively arranged on the supporting platform and are respectively arranged in one-to-one correspondence with the plurality of limiting parts, and the driving ends of the pushing parts are detachably connected with the corresponding limiting parts; and the driving mechanism is arranged in the cavity. Therefore, the separation time of different plasma can be reasonably controlled, so that the plasma separation effect is improved, and unnecessary sample loss is avoided.

Description

Technical Field

[0001] The invention relates to the field of medical technology, and in particular to a plasma separation device. Background Art

[0002] Currently, centrifuges are often used to process multiple containers of plasma at the same time to achieve centrifugal separation of multiple plasmas at one time. However, during the storage and transportation of plasma, it is crucial to maintain specific temperature and humidity conditions. Different storage environments will directly affect the stability and activity of each component in the plasma, which will lead to differences in the centrifugal separation time required for plasma. Therefore, since the stability and activity of each plasma sample are different, the optimal separation time required is also different.

[0003] The existing method of using a unified separation time for multiple plasma samples is difficult to achieve the ideal separation effect. If the time is too short, the serum and blood cells may not be completely separated; if the time is too long, not only will the separation quality not be further improved, but it may also cause unnecessary loss of samples. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an object of the present invention is to provide a plasma separation device that can reasonably control the separation time of different plasmas, thereby improving the plasma separation effect and avoiding unnecessary sample loss.

[0006] To achieve the above-mentioned purpose, the present invention proposes a plasma separation device, comprising: a shell, a cavity is arranged inside the shell, and an opening is arranged on the cavity, and a sealing mechanism is hinged at the opening; a support platform is arranged in the cavity, and a plurality of slidingly connected limiters are arranged on the support platform, which are used to limit and fix the plasma tube; a magnetic fixing part is arranged in the cavity, one end of the magnetic fixing part is plugged and fixed with the sealing mechanism, and the magnetic fixing part faces the plurality of limiters respectively, and is used to absorb and separate the plasma tube within a preset distance from the limiter; a plurality of color sensors are respectively fixed on the bottom of the corresponding limiters, and are used to obtain The separation data and position of the upper plasma tube; a plurality of pushing components are respectively arranged on the supporting platform and are arranged one by one with a plurality of limiting components, and the driving end of the pushing component is detachably connected with the corresponding limiting component to drive the limiting component to move; a driving mechanism is arranged in the cavity, and the driving mechanism and the supporting platform are fixed by a magnetic fixing member, and the driving mechanism is used to drive the supporting platform to rotate; a controller is arranged on the shell, and the controller is respectively connected with the color sensor, the pushing component and the driving mechanism, and is used to control the pushing component and the driving mechanism according to the received separation data.

[0007] The plasma separation device of the present invention starts the driving mechanism, and the driving mechanism drives the support platform to rotate, so that the centrifugal force generated by the plasma tube performs plasma separation. During the separation process, the color sensor detects the separation degree of the corresponding plasma tube above in real time, and sends the generated separation data to the controller. When the controller determines that the separation color of the plasma tube reaches the preset standard, it will control the driving mechanism to stop running, and record the angular position of the driving mechanism after stopping rotation, so as to prevent the sleeves from colliding with each other due to the same angle after subsequent rotation stops. At the same time, the controller will control the pushing component to drive the limiter to move in the direction of the magnetic fixing member according to the preset distance. When the distance between the limiter and the magnetic fixing member is shortened to a certain range, the plasma tube will be adsorbed on the magnetic fixing member. In addition, if the color sensor cannot detect the color change during the separation process, it will send data to the controller. The controller will determine that the sleeve has been separated from the bracket based on this data, and control the driving mechanism to continue to operate. The above steps are analogous to achieve the separation of multiple plasma tubes. In this way, the separation time of different plasmas can be reasonably controlled, thereby improving the separation effect of plasma and avoiding unnecessary sample loss.

[0008] In addition, the plasma separation device proposed in the application may also have the following additional technical features:

[0009] Specifically, the limiting member includes a clamp, a bracket, a sleeve and an adsorption member, wherein the support platform is provided with a plurality of through grooves arranged at equal angles, and the inner wall of the through groove is provided with two slide grooves; the two ends of the clamp are respectively fixedly connected to the sliders in the corresponding slide grooves; the bracket is L-shaped and fixedly connected to the clamp, and the bracket is detachably connected to the driving end of the pushing component; the sleeve is clamped in the clamp, and one end of the sleeve is attached to the bracket, and the sleeve is used to accommodate the plasma tube; the adsorption member is arranged on the sleeve, and the adsorption member can be adsorbed and connected to the magnetic fixing member.

[0010] Specifically, the through slot gradually expands in an opening direction from the pushing component toward the magnetic fixing piece, and the opening direction of the clamp faces the magnetic fixing piece.

[0011] Specifically, the driving mechanism includes a motor, a mounting frame and a plurality of shock-absorbing legs, wherein the motor is mounted on the mounting frame; one end of the plurality of shock-absorbing legs are respectively mounted on the bottom wall of the cavity, and the other ends of the plurality of shock-absorbing legs are respectively fixedly connected to the mounting frame.

[0012] Specifically, the support platform includes a ring, a plurality of support rods and a support table, wherein the ring is sleeved on the output shaft of the motor; one end of the support rod is fixed on the ring, and the other end of the support rod is fixed on the support table; a central hollow area is opened on the support table, and the central hollow area is opened in the central area of ​​the support table, and the plurality of through grooves are arranged around the central hollow area.

[0013] Specifically, the magnetic fixing part includes a threaded fastener, a one-way bearing, and a magnetic part, wherein one end of the threaded fastener is threadedly connected to a threaded hole opened on the motor output shaft, and the other end of the threaded fastener fits and abuts against the ring, so as to fix the ring on the motor output shaft; the one-way bearing is fixed on the threaded fastener; the magnetic part is passed through the central hollow area of ​​the support platform, one end of the magnetic part is connected to the one-way bearing, and the other end of the magnetic part is clamped in the sealing mechanism.

[0014] Specifically, it also includes an inner liner and a second sealing ring, the inner liner has a folded edge, the folded edge is clamped at the opening, and the inner liner extends into the cavity, the supporting platform and the magnetic fixing part are both arranged in the inner liner; a through hole is opened at the bottom of the inner liner, the second sealing ring is installed at the through hole, and the second sealing ring is sleeved on the upper end cover of the motor.

[0015] Specifically, a circular second groove is opened on the outer wall of the upper end cover of the motor, and the end of the second sealing ring away from the liner is sleeved in the second groove, and the second groove is higher than the bottom wall of the liner; the end of the ring adjacent to the upper end cover of the motor is covered on the upper end cover and the second sealing ring, and there is a gap between the ring and the upper end cover of the motor.

[0016] Specifically, the sealing mechanism comprises an upper cover, a sealing plate and a first sealing ring, wherein the upper cover is hinged to the opening, the first sealing ring is fixed on the folded edge, and the first sealing ring is in contact with the upper cover;

[0017] The first sealing ring is provided with a first groove, and the sealing plate is clamped and fitted between the first groove and the upper cover.

[0018] Specifically, a spline groove is formed at one end of the sealing plate adjacent to the magnetic fixing member, a spline rod is provided at one end of the magnetic fixing member adjacent to the spline groove, and the spline rod is inserted into the spline groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 is a cross-sectional view of a plasma separation device according to one embodiment of the present invention;

[0022] Figure 2 is a schematic structural diagram of a plasma separation device according to an embodiment of the present invention;

[0023] Figure 3 It is a partial structural schematic diagram of a plasma separation device according to one embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of a position-limiting member according to an embodiment of the present invention;

[0025] Figure 5 is a partial structural schematic diagram of a plasma separation device according to another embodiment of the present invention;

[0026] Figure 6 According to one embodiment of the present invention Figure 1 Schematic diagram of the enlarged structure of area A in the middle;

[0027] Figure 7 According to one embodiment of the present invention Figure 1 Schematic diagram of the enlarged structure of area B in the middle.

[0028] As shown in the figure:

[0029] 1. Shell; 10. Cavity; 11. Sealing mechanism; 110. Upper cover; 111. Sealing plate; 112. First sealing ring; 1120. First groove; 2. Support platform; 20. Ring; 21. Support rod; 22. Support platform; 23. Limiting member; 220. Central hollow area; 221. Through groove; 2210. Slide groove; 230. Clamp; 231. Bracket; 232. Sleeve; 233. Adsorption member; 3. Magnetic fixing member; 30. Threaded fastener; 31. One-way bearing; 32. Magnetic member; 330. Spline rod; 4. Color sensor; 5. Pushing member; 6. Driving mechanism; 60. Motor; 61. Mounting frame; 62. Shock-absorbing leg; 600. Second groove; 7. Controller; 8. Lining; 80. Folding edge; 9. Second sealing ring. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] The plasma separation device according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, the plasma separation device according to the embodiment of the present invention may include a housing 1, a supporting platform 2, a magnetic fixing member 3, a color sensor 4, a pushing member 5, a driving mechanism 6 and a controller 7.

[0034] Among them, you can refer to Figure 1 and Figure 2 A cavity 10 is provided inside the shell 1, and an opening is provided on the cavity 10, and a sealing mechanism 11 is hinged at the opening, wherein the sealing mechanism 11 is used to seal the opening to maintain the cleanliness of the cavity 10. Secondly, the tight closure of the sealing mechanism 11 can prevent blood from leaking out during the separation process, thereby avoiding contamination to the operator or the surrounding environment.

[0035] Furthermore, if Figure 2 As shown, the sealing mechanism 11 includes an upper cover 110, a sealing plate 111 and a first sealing ring 112, wherein the first sealing ring 112 is fixed on the folded edge 80 at the hinged opening of the upper cover 110, and the first sealing ring 112 fits with the upper cover 110. This design ensures that the sealing mechanism 11 can form an effective sealing barrier when closed to prevent leakage of blood or other fluids.

[0036] The first sealing ring 112 is provided with a first groove 1120, and the sealing plate 111 is snap-fitted between the first groove 1120 and the upper cover 110. The snap-fitting of the first groove 1120 on the first sealing ring 112 and the sealing plate 111 further enhances the sealing effect. When the sealing plate 111 is snap-fitted between the first groove 1120 and the upper cover 110, it forms an additional sealing layer, which helps to prevent the fluid from leaking through tiny gaps.

[0037] As a possible situation, observation holes can be respectively provided at corresponding positions on the upper cover 110 and the sealing plate 111. On the one hand, the rotation inside the plasma separation device can be checked through the observation holes, and on the other hand, they can be used as ventilation and heat dissipation holes. At the same time, the observation holes provided on the sealing plate 111 can also be used as the buckle position for removing the sealing plate 111, so that it can be easily and conveniently removed, which greatly improves the convenience of operation. Among them, a sealing cover can also be provided on the observation hole to prevent external impurities or air from entering the interior of the device. When observation or operation is required, the operator only needs to simply open the sealing cover.

[0038] As another possible situation, the sealing cover may be made of a transparent material, so that when the internal situation needs to be observed, there is no need to open the sealing cover, thereby providing a more convenient observation method.

[0039] The support platform 2 is disposed in the cavity 10 , and a plurality of slidably connected limiting members 23 are disposed on the support platform 2 for limiting and fixing the plasma tube.

[0040] Further, see Figure 4 and Figure 5 The limiting member 23 includes a clamp 230, a bracket 231, a sleeve 232 and an adsorption member 233, wherein the support platform 2 is provided with a plurality of through grooves 221 arranged at equal angles, and the inner wall of the through groove 221 is provided with two slide grooves 2210.

[0041] The two ends of the clamp 230 are respectively fixedly connected to the sliders in the corresponding slide grooves 2210, the bracket 231 is L-shaped and fixedly connected to the clamp 230, the bracket 231 is detachably connected to the driving end of the pushing component 5, the sleeve 232 is clamped in the clamp 230, and one end of the sleeve 232 is attached to the bracket 231, the sleeve 232 is used to accommodate the plasma tube, the adsorption component 233 is arranged on the sleeve 232, and the adsorption component 233 can be adsorbed and connected with the magnetic fixing component 3.

[0042] It should be noted that the bracket 231, sleeve 232 and plasma tube are all made of transparent materials. The use of transparent plastic makes it convenient for the color sensor to detect the color inside the plasma tube through the bracket 231 and sleeve 232. At the same time, the clamp 230 is made of elastic material, such as steel sheet, which can easily and firmly limit and fix the sleeve 232 to ensure its stability and reliability during operation. The sleeve 232 is adapted to the size of the plasma tube, thereby improving the stability of the plasma tube in the sleeve 232, and the adsorbent 233 can be made of a magnet or iron product.

[0043] Specifically, when installing the plasma tube, it is only necessary to insert the plasma tube into the sleeve 232 to complete the fixation of the plasma tube.

[0044] Furthermore, if Figure 5 As shown, the opening of the through slot 221 gradually expands from the direction of the pushing component 5 toward the magnetic fixing component 3, and the opening direction of the clamp 230 is toward the magnetic fixing component 3. This ingenious layout ensures that when the pushing component 5 pushes the sleeve 232 through the bracket 231, and then drives the plasma tube to move toward the magnetic fixing component 3, as the opening of the through slot 221 gradually expands, the movement of the slider in the inclined slide groove 2210 will cause the opening of the clamp 230 toward the magnetic fixing component 3 to gradually increase, thereby reducing the binding of the clamp 230 on the sleeve 232. This dynamic change greatly facilitates the adsorption process of the magnetic fixing component 3 on the adsorption component 233, so that the sleeve 232 can be quickly and smoothly detached from the clamp 230.

[0045] On the contrary, if the pushing component 5 pushes the sleeve 232 through the bracket 231 to drive the plasma tube to move away from the magnetic fixing member 3, the clamp 230 will be gradually tightened due to the gradual reduction of the opening of the through groove 221. This design significantly enhances the firmness of the clamp 230 to the plasma tube during the rotation of the support platform 2, ensuring the stability and safety of the plasma tube during operation.

[0046] The magnetic fixing member 3 is disposed in the cavity 10 , one end of the magnetic fixing member 3 is plugged and fixed to the sealing mechanism 11 , and the magnetic fixing member 3 faces a plurality of limit members 23 respectively, and is used to absorb and detach the plasma tube within a preset distance from the limit member 23 .

[0047] A plurality of color sensors 4 are respectively fixed on the bottom of the corresponding stopper 23, and are used to obtain the separation data and position of the upper plasma tube, that is, the color sensor determines the color of the object by measuring the color and intensity of the light reflected from the surface of the object. During the plasma separation process, different components (such as plasma, red blood cells, etc.) will present different colors. The color sensor 4 can identify these color differences, thereby judging the separation state of the plasma tube.

[0048] For example, plasma is usually light yellow, while red blood cells are dark red. When the color sensor detects a color change in the plasma tube, such as a gradual change from dark red to light yellow, it can be determined that the separation of red blood cells and plasma has been completed.

[0049] If the sleeve 232 is separated from the bracket 231 , the color sensor 4 cannot detect the change of the color above or cannot detect the color data above, which indicates that the sleeve 232 has been separated from the bracket 231 .

[0050] The plurality of pushing members 5 are respectively disposed on the supporting platform 2 and are arranged one-to-one corresponding to the plurality of limiting members 23 . The driving end of the pushing member 5 is detachably connected to the corresponding limiting member 23 for driving the limiting member 23 to move.

[0051] It should be noted that the pushing component 5 described in this embodiment is an electric cylinder, or a hydraulic rod, a linear motor or other components, which can be selected according to actual conditions.

[0052] The driving mechanism 6 is disposed in the cavity 10 , and the driving mechanism 6 and the supporting platform 2 are fixed via a magnetic fixing member 3 , and the driving mechanism 6 is used for driving the supporting platform 2 to rotate.

[0053] The controller 7 is disposed on the housing 1 , and is respectively connected to the color sensor 4 , the pushing component 5 , and the driving mechanism 6 , and is used to control the pushing component 5 and the driving mechanism 6 according to the received separation data.

[0054] It should be noted that the controller 7 described in this embodiment has a display screen and control buttons, and the display screen enables the operator to clearly understand the working status of the plasma separation device. The control buttons give the operator the ability to directly control and edit the program of the controller 7, which is convenient for flexible adjustment according to actual needs, and the controller 7 can be connected to the color sensor 4, the pushing component 5 and the driving mechanism 6 through wireless communication, wherein the wireless communication technology includes Wi-Fi, Bluetooth, ZigBee and other protocols, thereby realizing remote control of the color sensor 4, the pushing component 5 and the driving mechanism 6 by the controller 7 in the form of remotely sending protocol instructions.

[0055] Specifically, in the actual process of plasma separation, first, in the initial state, the limiter 23 is close to the position of the magnetic fixture 3. The operator inserts the plasma tube into the sleeve 232 and uses the sleeve 232 to achieve the initial limit fixation of the plasma tube. Subsequently, by manipulating the pushing component 5, the limiter 23 is driven to drive the plasma tube to move away from the magnetic fixture 3. In this process, the clamp 230 will gradually tighten to provide secondary fixation for the plasma tube to ensure the stability of the plasma tube during rotation. Multiple plasma tubes are installed one by one according to the above method and so on.

[0056] After the installation of the multiple plasma tubes is completed, the sealing mechanism 11 is closed and the driving mechanism 6 is started. The driving mechanism 6 drives the support platform 2 to rotate, so that the centrifugal force generated by the plasma tubes separates the plasma. It is worth noting that due to the difference in the quality of the plasma in the multiple plasma tubes, the required separation time will also be different. Therefore, during the separation process, the color sensor 4 will detect the separation degree of the corresponding plasma tube above in real time, and send the generated separation data to the controller 7.

[0057] When the controller 7 determines that the separation color of the plasma tube reaches the preset standard, it indicates that the separation of plasma in the plasma tube is completed. At this time, the controller 7 will control the driving mechanism 6 to stop running, and record the angular position of the driving mechanism 6 after it stops rotating, so as to prevent the sleeves 232 from colliding with each other due to the same angle after the subsequent rotation stops. At the same time, the controller 7 will control the pushing component 5 to drive the limiter 23 to move in the direction of the magnetic fixing component 3 according to the preset distance. When the distance between the limiter 23 and the magnetic fixing component 3 is shortened to a certain range, the magnetic fixing component 3 can absorb the sleeve 232 and the plasma tube on the limiter 23, and the adsorbent 233 will be adsorbed to the magnetic fixing component 3 to fix the sleeve 232.

[0058] In addition, if the color sensor 4 does not detect a color change during the separation process, it will send data to the controller 7. The controller 7 will determine that the sleeve 232 has been separated from the bracket 231 based on the data, and control the driving mechanism 6 to continue to operate. The above steps are repeated by analogy to achieve the separation of multiple plasma tubes. In this way, the separation time of different plasmas can be accurately controlled, the separation effect of plasma can be improved, and unnecessary loss of samples can be effectively avoided.

[0059] In one embodiment of the present invention, Figure 1 As shown, the driving mechanism 6 may include a motor 60 , a mounting bracket 61 and a plurality of shock-absorbing legs 62 .

[0060] The motor 60 is mounted on a mounting frame 61 .

[0061] It should be noted that the motor 60 is a reduction motor with an encoder, which can detect the rotation angle of the output shaft of the motor 60 by using the encoder. That is, the motor 60 detects the rotation angle of its own output shaft through its own encoder, generates a first angle signal, and sends it to the controller 7 for recording, so as to avoid multiple sleeves 232 being adsorbed at the same position, causing potential collision or interference.

[0062] One end of the plurality of shock-absorbing legs 62 is respectively mounted on the bottom wall of the cavity 10, and the other ends of the plurality of shock-absorbing legs 62 are respectively fixedly connected to the mounting frame 61, wherein the design of the plurality of shock-absorbing legs 62 helps to reduce the vibration and noise generated when the motor 60 is running. These shock-absorbing legs 62 can effectively absorb and disperse the vibration energy, and prevent the vibration from being transmitted to the bottom wall or other components of the cavity 10. This not only improves the stability and durability of the device, but also reduces the noise level during operation.

[0063] As a possible situation, when the motor 60 is worn out due to long-term operation, when one of the plasma tubes is centrifuged and the other plasma tubes continue to separate and rotate, if the rotor of the motor 60 is driven unbalanced, causing the device to shake, a balancing tube can be manually placed on the plasma tube after centrifugation to achieve the purpose of balancing the device and reducing shaking.

[0064] In one embodiment of the present invention, Figure 1 As shown, the support platform 2 includes a collar 20 , a plurality of support rods 21 and a support table 22 .

[0065] Among them, the ring 20 is sleeved on the output shaft of the motor 60, one end of the support rod 21 is fixed on the ring 20, and the other end of the support rod 21 is fixed on the support platform 22. A central hollow area 220 is opened on the support platform 22. The central hollow area 220 is opened in the central area of ​​the support platform 22, and multiple through grooves 221 are arranged around the central hollow area 220.

[0066] Specifically, the above design enables the magnetic fixing part 3 to be located between multiple adsorption parts 233, and the adsorption parts 233 can be adsorbed onto the magnetic fixing part 3 at any angle, and the motor 60 can be used to drive the ring 20 to rotate through the locking force of the magnetic fixing part 3, thereby driving the support platform 22 to rotate through the support rod 21 to generate centrifugal force.

[0067] In one embodiment of the present invention, Figure 1 As shown, the magnetic fixing member 3 includes a threaded fastener 30 , a one-way bearing 31 , and a magnetic member 32 .

[0068] Among them, one end of the threaded fastener 30 is threadedly connected to the threaded hole opened on the output shaft of the motor 60, and the other end of the threaded fastener 30 fits and abuts against the ring 20, which is used to fix the ring 20 on the output shaft of the motor 60. The one-way bearing 31 is fixed on the threaded fastener 30, and the magnetic component 32 is penetrated through the central hollow area 220 of the support platform 2. The shaft rod of one end of the magnetic component 32 is connected to the one-way bearing 31, and the other end of the magnetic component 32 is clamped in the sealing mechanism 11.

[0069] It should be noted that the one-way bearing 31 is a bearing that can rotate freely in one direction and is locked in the other direction. When the motor 60 drives the ring 20 to rotate, the one-way bearing 31 can rotate relative to the shaft of the magnetic member 32, and the magnetic member 32 is limited by the upper sealing mechanism 11. Therefore, only the one-way bearing 31 rotates and the magnetic member 32 does not rotate, thereby ensuring the stability of the magnetic member 32 and preventing the magnetic member 32 from rotating, thereby ensuring the stability of the adsorption member 233 during the process of being adsorbed on the magnetic member 32. When the sealing plate 111 is lifted, the restriction on the magnetic member 32 is released, so that the magnetic member 32 can be rotated in the opposite direction. At this time, the magnetic member 32 and the one-way bearing 31 are in a locked state, thereby driving the threaded fastener 30 to rotate and releasing the restriction on the ring 20. The magnetic member 32 can be an electromagnet or a strong magnetic magnet.

[0070] Specifically, when the adsorption component 233 is close to the magnetic component 32, the two are magnetically attracted to each other, and the magnetic component 32 can adsorb the adsorption component 233 onto itself.

[0071] Furthermore, if Figure 5 As shown, a spline groove is provided at one end of the sealing plate 111 adjacent to the magnetic fixing part 3, and a spline rod 330 is provided at one end of the magnetic fixing part 3 adjacent to the spline groove, and the spline rod 330 is inserted into the spline groove, that is, the spline rod 330 cooperates with the spline groove to limit the magnetic part 32, thereby preventing the magnetic part 32 from rotating with the support platform 2, thereby ensuring the stability of the adsorption part 233 during the adsorption process on the magnetic part 32.

[0072] In one embodiment of the present invention, Figure 1 , Figure 6 As shown, the plasma separation device also includes an inner liner 8 and a second sealing ring 9. The inner liner 8 has a folded edge 80, which is clamped at the opening, and the inner liner 8 extends into the cavity 10. The supporting platform 2 and the magnetic fixing part 3 are both arranged in the inner liner 8. A through hole is opened at the bottom of the inner liner 8, and the second sealing ring 9 is installed at the through hole, and the second sealing ring 9 is sleeved on the upper end cover of the motor 60.

[0073] It can be understood that by providing the lining 8 to cover the support platform 2 and the magnetic fixture 3, a clean and sterile environment can be ensured, and when the support platform 2 is removed, the lining 8 can be removed to facilitate thorough cleaning and disinfection of the lining 8, thereby maintaining the hygiene of the plasma separation device.

[0074] At the same time, the design of the folded edge 80 and the first sealing ring 112 can increase the sealing between the upper cover 110 and the shell 1. At the same time, the folded edge 80 can be fixed and limited by the extrusion force, and the folded edge 80 can also limit the position height of the lining 8, thereby improving the stability of the lining 8 in the cavity 10.

[0075] In one embodiment of the present invention, Figure 7 As shown, a circular second groove 600 is opened on the outer wall of the upper end cover of the motor 60, and the end of the second sealing ring 9 away from the liner 8 is sleeved in the second groove 600, and the second groove 600 is higher than the bottom wall of the liner 8, and the end of the ring 20 adjacent to the upper end cover of the motor 60 is covered on the upper end cover and the second sealing ring 9, and there is a gap between the ring 20 and the upper end cover of the motor 60. The second sealing ring 9 can increase the sealing between the upper end cover of the motor 60 and the liner 8, and the second groove 600 is higher than the bottom wall of the liner 8 and one end of the upper end cover of the motor 60 is covered on the upper end cover and the second sealing ring 9, all of which are to allow plasma to gather on the liner 8 when plasma leaks, to prevent plasma from flowing into the upper end cover of the motor 60, resulting in a reduced service life of the motor 60.

[0076] In summary, the plasma separation device of the embodiment of the present application can reasonably control the separation time of different plasmas, thereby improving the plasma separation effect and avoiding unnecessary sample loss.

[0077] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0078] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A plasma separation device, characterized in that: include: A shell, wherein a cavity is provided inside the shell, and an opening is provided on the cavity, and a sealing mechanism is hinged at the opening; A support platform is arranged in the cavity, and a plurality of slidably connected limiting members are arranged on the support platform for limiting and fixing the plasma tube; A magnetic fixing member is disposed in the cavity, one end of the magnetic fixing member is plugged and fixed to the sealing mechanism, and the magnetic fixing member faces the plurality of limiting members respectively, and is used to absorb and separate the plasma tube within a preset distance from the limiting member; A plurality of color sensors are respectively fixed on the bottom of the corresponding limiting members, and are used to obtain the separation data and position of the upper plasma tube; A plurality of pushing components are respectively arranged on the supporting platform and are respectively arranged one by one corresponding to the plurality of limiting components, and the driving end of the pushing component is detachably connected to the corresponding limiting component to drive the limiting component to move; A driving mechanism is disposed in the cavity, and the driving mechanism and the supporting platform are fixed by a magnetic fixing member, and the driving mechanism is used to drive the supporting platform to rotate; A controller is arranged on the housing and is respectively connected to the color sensor, the pushing component and the driving mechanism, and is used for controlling the pushing component and the driving mechanism according to the received separation data.

2. The plasma separation device according to claim 1, characterized in that: The limiting member includes a clamp, a bracket, a sleeve and an adsorption member, wherein: The support platform is provided with a plurality of through grooves arranged at equal angles, and the inner wall of the through groove is provided with two slide grooves; The two ends of the clamp are respectively fixedly connected to the sliders in the corresponding slide grooves; The bracket is L-shaped and fixedly connected to the clamp, and the bracket is detachably connected to the driving end of the pushing component; The sleeve is clamped in the clamp, and one end of the sleeve is attached to the bracket, and the sleeve is used to accommodate the plasma tube; The adsorption component is arranged on the sleeve, and the adsorption component and the magnetic attraction fixing component can be adsorbed and connected.

3. The plasma separation device according to claim 2, characterized in that: The through slot gradually expands in an opening direction from the pushing component toward the magnetic fixing piece, and the opening direction of the clamp faces the magnetic fixing piece.

4. The plasma separation device according to claim 2, characterized in that: The driving mechanism includes a motor, a mounting frame and a plurality of shock-absorbing legs, wherein: The motor is mounted on the mounting frame; One ends of the plurality of shock-absorbing legs are respectively mounted on the bottom wall of the cavity, and the other ends of the plurality of shock-absorbing legs are respectively fixedly connected to the mounting frame.

5. The plasma separation device according to claim 4, characterized in that: The support platform includes a collar, a plurality of support rods and a support table, wherein: The collar is sleeved on the output shaft of the motor; One end of the support rod is fixed on the collar, and the other end of the support rod is fixed on the support platform; A central hollow area is provided on the support platform, the central hollow area is provided in the central region of the support platform, and a plurality of through grooves are arranged around the central hollow area.

6. The plasma separation device according to claim 5, characterized in that: The magnetic fixing member includes a threaded fastener, a one-way bearing, and a magnetic member, wherein: One end of the threaded fastener is threadedly connected to a threaded hole provided on the motor output shaft, and the other end of the threaded fastener is fitted and abutted against the collar, so as to fix the collar on the motor output shaft; The one-way bearing is fixed on the threaded fastener; The magnetic attraction member is inserted into the central hollow area of ​​the support platform, one end of the shaft of the magnetic attraction member is connected to the one-way bearing, and the other end of the magnetic attraction member is clamped in the sealing mechanism.

7. The plasma separation device according to claim 5, characterized in that: It also includes an inner liner and a second sealing ring, wherein the inner liner has a folded edge, the folded edge is clamped at the opening, and the inner liner extends into the cavity, and the support platform and the magnetic fixing member are both arranged in the inner liner; A through hole is formed at the bottom of the inner liner, the second sealing ring is installed at the through hole, and the second sealing ring is sleeved on the upper end cover of the motor.

8. The plasma separation device according to claim 7, characterized in that: A circular second groove is formed on the outer wall of the upper end cover of the motor, and one end of the second sealing ring away from the inner liner is sleeved in the second groove, and the second groove is higher than the bottom wall of the inner liner; One end of the collar adjacent to the upper end cover of the motor is covered on the upper end cover and the second sealing ring, and a gap exists between the collar and the upper end cover of the motor.

9. The plasma separation device according to claim 7, characterized in that: The sealing mechanism comprises an upper cover, a sealing plate and a first sealing ring, wherein the upper cover is hinged to the opening, the first sealing ring is fixed on the folded edge, and the first sealing ring is in contact with the upper cover; The first sealing ring is provided with a first groove, and the sealing plate is clamped and fitted between the first groove and the upper cover.

10. The plasma separation device according to claim 9, characterized in that: A spline groove is formed at one end of the sealing plate adjacent to the magnetic fixing member, a spline rod is formed at one end of the magnetic fixing member adjacent to the spline groove, and the spline rod is inserted into the spline groove.

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