CN115746996A

CN115746996A - Mesenchymal stem cell separation and extraction device

Info

Publication number: CN115746996A
Application number: CN202211265238.8A
Authority: CN
Inventors: 姚浩; 陈丹; 易海; 范方毅; 苏毅
Original assignee: Western Theater General Hospital of PLA
Current assignee: Western Theater General Hospital of PLA
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-03-07

Abstract

The invention discloses a mesenchymal stem cell separating and extracting device which comprises a moving frame, an operation frame and a separation box, wherein the moving frame comprises a storage shell and an armrest frame, the armrest frame is symmetrically arranged at the head of the storage shell and is rotationally connected with the storage shell, the operation frame is arranged in the middle of the storage shell and is fixedly connected with the storage shell, the separation box is arranged in the middle of the operation frame, the separation box is rotationally connected with the operation frame, a rotating rod is arranged in the middle of the moving frame, the operation frame is convenient to rotationally install through the rotating rod, the purpose that the separation box is stably stored through the operation frame after the separation box is arranged on the operation frame is guaranteed, and therefore the purposes that the separation box can be in two states when being used and not being used and is convenient to stably use and flexibly transport are achieved.

Description

Mesenchymal stem cell separation and extraction device

Technical Field

The invention relates to the technical field of stem cell separation and extraction equipment, in particular to a mesenchymal stem cell separation and extraction device.

Background

At present, when the mesenchymal stem cells are separated, test tubes with different specifications may be needed to be used for centrifugal separation, so that corresponding stem cell separation and extraction device equipment is needed.

The current chinese patent that publication number is CN214244380U discloses a mesenchymal stem cell separation extraction element, relates to cell separation technical field, which comprises a bod, the inside of organism is the cavity form, and the inside fixed mounting of organism has servo motor, the last driven connection of servo motor's motor output shaft has the pivot, the top of pivot rotates with the inner wall of organism, the middle part fixed weld of pivot has separation extraction element, the last even four groups of round holes of having seted up of separation extraction element, separation extraction element's bottom fixed weld has hollow ring, the arc spout has been seted up on the inner wall at hollow ring top, sliding connection has sliding support on the arc spout.

To the correlation technique among the above-mentioned, the inventor thinks that current stem cell separation extraction element equipment simple structure, unable nimble accomodating when using, often need dismantle into different parts with equipment when equipment needs load like this when the transportation, and it is comparatively loaded down with trivial details to operate, and traditional stem cell separation extraction element can't go up and down the height of test tube after processing is accomplished simultaneously, and inconvenient user easily draws the operation like this.

Disclosure of Invention

In order to reach the effect of taking in a flexible way and easily extracting, this application provides a mesenchymal stem cell separation extraction element.

The invention is realized in the following way:

the utility model provides a mesenchymal stem cell separation extraction element, is including removing frame, operation frame and separator box, remove the frame including containing shell and handrail frame, handrail frame symmetry sets up at the head of containing shell, and handrail frame rotates with the containing shell to be connected, the operation frame is installed at the middle part of containing shell, and operation frame and containing shell fixed connection, the separator box is installed at the middle part of operation frame, and the separator box rotates with the operation frame to be connected.

Through adopting above-mentioned technical scheme, can install the operation frame through the storage shell when needs use, make things convenient for the operation frame can be in the middle part of storage shell nimble upset, just can overturn the operation frame when users need use like this, guarantee to drive the separator box and rotate the up end of operation frame, just so can come stable putting the test tube through the separator box and carry out the centrifugation operation, can rotate the operation frame when not using and drive the lower terminal surface that the separator box overturns the operation frame, make things convenient for what the separator box can be nimble to accomodate like this, handrail frame also can be stable on the storage shell simultaneously, can overturn when users need use like this and carry out the pushing equipment use, just can overturn the handrail frame when not using, practice thrift the space and conveniently transport.

Further, the storage shell comprises a U-shaped shell and side plate strips, the side plate strips are arranged on the outer side face of the U-shaped shell and fixedly connected with the U-shaped shell, and a rotating rod is fixedly mounted in the middle of the U-shaped shell.

Through adopting above-mentioned technical scheme, just can install the side lath through the U-shaped casing when accomodating the shell and need using, guarantee to support the installation spacing through the side lath, make things convenient for the horizontal slip that the spacing can be nimble on the side lath, guarantee the rotation installation that the operation frame can be stable through setting up to the bull stick simultaneously and use.

Further, the lower terminal surface of U-shaped casing still the symmetry be provided with remove the wheel, it rotates with the U-shaped casing to remove the wheel and is connected, spacing is still installed to the up end of side board strip, spacing and curb plate strip horizontal sliding connection.

Through adopting above-mentioned technical scheme, can come stable promotion to use through removing the wheel when the operation frame needs to remove, guarantee to carry out spacing block to the operation frame through setting up of spacing frame simultaneously, guarantee that the operation frame is more stable in the use.

Furthermore, the limiting frame comprises a middle rod and movable plates, the movable plates are symmetrically arranged at two ends of the middle rod and are vertically and fixedly connected with the middle rod, and the middle part of the middle rod is connected with the U-shaped shell through an extension spring.

Through adopting above-mentioned technical scheme, can install the fly leaf through the king-rod when spacing needs use, make things convenient for the fly leaf nimble to slide on accomodating the shell, it is more stable when making things convenient for the fly leaf to use simultaneously through setting up extension spring.

Furthermore, the handrail frame includes the pole of buckling and side ear, side ear fixed mounting is on the lateral surface of the pole of buckling, the side of side lath is seted up the screw hole corresponding with the side ear.

By adopting the technical scheme, when the handrail frame needs to be used, the side lugs can be arranged on the bending rods, so that the bending rods can be fixed through the side lugs to be used.

Furthermore, the operation frame comprises a top box and a bracket, the bracket is installed on the lower end face of the top box, the bracket is fixedly connected with the top box, an auxiliary ring is further arranged on the upper end face of the top box, angle plates are fixedly installed on two sides of the auxiliary ring, and the angle plates are fixedly connected with the top box through bolts.

Through adopting above-mentioned technical scheme, can support the top case through the bracket when the operation frame needs to be used, make things convenient for the top case to rotate through the bracket and install and use on the bull stick, guarantee to support the installation supplementary ring through setting up to the angle board simultaneously, conveniently support through supplementary ring and spacing disk body use, just so can guarantee that the disk body rotates the operation in-process more stably.

Further, separator box includes tray, case and pipe support group, case shell fixed mounting is in the upper end of tray, pipe support group installs the middle part at the case shell, and pipe support group and the vertical sliding connection of case shell.

Through adopting above-mentioned technical scheme, can support installation box shell through the tray when the separator box needs to use, guarantee that the user can use the stable storage test tube of putting in box shell inside of pipe support group.

Furthermore, the tray comprises a tray body, a bottom frame and a driving motor, wherein the bottom frame is fixedly installed on the lower end face of the tray body, the driving motor is fixedly installed in the middle of the top box, the output end of the driving motor is connected with the bottom frame, a limiting pipe is further installed inside the tray body, and the limiting pipe is fixedly connected with the tray body.

Through adopting above-mentioned technical scheme, can come disk body and driving motor interconnect through the chassis when the tray needs to be used, just so can drive the stable rotation operation of disk body through control driving motor, guarantee simultaneously through the setting to spacing pipe that the case shell can come stable mutually supporting through the picture peg and be connected, still need come both reciprocal anchorages through the bolt after the picture peg inserts spacing pipe, and then guarantee to overturn and get off later on safer.

Further, the lower terminal surface symmetry of case shell is provided with the picture peg with spacing pipe matched with, picture peg and case shell vertical fixation, the symmetry is provided with the notch plate on the medial surface of case shell, notch plate and case shell integrated into one piece, the middle part of notch plate still is provided with the threaded rod, the threaded rod rotates with the case shell to be connected, and the lower terminal surface of threaded rod still fixed mounting have a belt pulley, the center fixed mounting of terminal surface has the rotation motor under the case shell, the output that rotates the motor is connected with the belt pulley through synchronous belt.

Through adopting above-mentioned technical scheme, just can fix a position through the concave plate when pipe support group need install in case shell inside, block that the buckle plate can be stable is guaranteed to the middle part of concave plate to setting up through the threaded rod guarantees that the better regulation of going up and down of buckle plate uses, comes the person of facilitating the use simultaneously through the lower extreme fixed mounting belt pulley at the threaded rod and can drive the threaded rod synchronous rotation operation of both sides through control rotation motor, just so can guarantee the purpose through threaded rod lift buckle plate.

Further, pipe support group is including buckling plate, horizontal bracket and holding frame, buckling plate's both ends seted up with threaded rod matched with screw thread through-hole, horizontal bracket fixed mounting is at buckling plate's up end, and the up end of horizontal bracket still symmetry is provided with a plurality of semicircle boards, the middle part of horizontal bracket still is provided with the inserted bar frame, the holding frame includes mesochite and arc, the arc symmetry sets up the left and right sides at mesochite, and the arc passes through slide bar and mesochite sliding connection, still fixed mounting has supporting spring between the slide bar, both sides still are provided with the pipe box with inserted bar frame matched with around the mesochite, and pipe box and mesochite fixed connection.

Through adopting above-mentioned technical scheme, can support the installation horizontal stand through the bent plate when pipe support group needs use, just so can install the clamping frame through the horizontal stand, make things convenient for the clamping frame to cooperate the semicircle board to carry out the centre gripping to the test tube, just so can guarantee that the test tube is more stable in the use, can come symmetry installation arc through the mesochite when the clamping frame needs use simultaneously, guarantee that the arc can pass through the slide bar and the stable sliding fit of mesochite, promote the operation of carrying out the centre gripping that both sides arc can be better through supporting spring's setting simultaneously.

Compared with the prior art, the invention has the beneficial effects that:

(1) At the mid-mounting bull stick that removes the frame, the installation operation frame is rotated through the bull stick to the convenience, guarantees just can realize the purpose of stably accomodating the separator box through the operation frame after the separator box is installed on the operation frame to realize that equipment can have two kinds of states when using and not using, the purpose of convenient stable use and nimble transportation.

(2) Install spacing on the curb plate strip, come the convenience and carry out spacing use through spacing to the roof case, just can assist fixed the use through spacing after the separator box overturns different states like this to realize the purpose of equipment stable adjustment.

(3) At the internally mounted threaded rod of case shell, the person of facilitating the use rotates the motor through the control and comes the operation of electric threaded rod rotation, just so can mutually support the purpose that reaches lift buckling plate through the threaded rod with the screw through-hole on the buckling plate to the realization user is taken in a flexible way and is put the purpose that the test tube arrived on the holding frame.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a perspective view of the device of the present invention in use;

FIG. 2 is a front view of the device of FIG. 1;

FIG. 3 is a perspective view of the device of the present invention when not in use;

FIG. 4 is a schematic structural view of the movable stand shown in FIG. 1;

FIG. 5 is a top view of the device shown in FIG. 4;

FIG. 6 is a schematic view of the mating structure of the work head and the knock-out box of FIG. 1;

FIG. 7 is a front view of the device of FIG. 6;

FIG. 8 is a perspective view of the work head of FIG. 6;

FIG. 9 is a front view of the device of FIG. 8;

FIG. 10 is a schematic structural view of the tray shown in FIG. 6;

FIG. 11 is a schematic view of the housing of FIG. 6;

FIG. 12 is a schematic view of the mating arrangement of the stack and the holders of FIG. 6;

FIG. 13 is a schematic structural view of the tube rack set of FIG. 12;

FIG. 14 is a schematic view of the structure of the holder of FIG. 12;

fig. 15 is a top view of the device shown in fig. 14.

In the figure: 1. a movable frame; 11. a housing case; 111. a U-shaped housing; 112. a side panel; 113. a rotating rod; 114. a moving wheel; 12. a handrail frame; 121. a bending rod; 122. side ears; 123. a threaded hole; 13. a limiting frame; 131. a middle rod; 132. a movable plate; 133. an extension spring; 2. an operation frame; 21. a top box; 211. an auxiliary ring; 212. an angle plate; 22. a bracket; 3. a separation tank; 31. a tray; 311. a tray body; 312. a chassis; 313. a drive motor; 314. a limiting pipe; 32. a cabinet housing; 321. inserting plates; 322. a concave plate; 323. a threaded rod; 324. a belt pulley; 325. rotating the motor; 326. a synchronous belt; 327. a threaded through hole; 33. a pipe frame group; 331. a bending plate; 332. a horizontal frame; 333. a pole inserting frame; 334. a semicircular plate; 34. a clamping frame; 341. a middle shell; 342. an arc-shaped plate; 343. a slide bar; 344. a support spring; 345. and (4) pipe sleeves.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

The present application is described in further detail below with reference to figures 1-15.

The subject name is mesenchymal stem cell separation and extraction device.

Firstly, integrally showing the structures and the matching relations of all parts when the equipment is used by using the graph 1 and the graph 2;

the structure and the matching relation of various parts when the device is not used are shown by figure 3;

fig. 4 and 5 are schematic structural views of the moving frame 1 drawn out from fig. 1;

fig. 6 and 7 are perspective views of the work rack 2 and the separating box 3 drawn from fig. 1, which are used for visually showing the connection relationship between the parts of the work rack 2 and the separating box 3;

fig. 8 and 9 are schematic structural views of the work frame 2 taken from fig. 6, which are used for integrally showing the mutual matching relationship among the components of the work frame 2;

FIG. 10 shows the tray 31 of FIG. 6, illustrating the mating relationship of the various components of the tray 31 as a whole, while looking back at FIG. 7, the connection between the tray 31 and the top box 21 can be seen;

FIG. 11 is a view of the enclosure 32 taken from FIG. 6 to show the mating relationship of the various components of the tray 31 as a whole, while looking back at FIG. 10, the mating relationship between the insert 321 and the retainer tube 314 can be seen;

fig. 12 is a view showing the fitting relationship of the tube frame set 33 and the holding frame 34 from fig. 6, for showing the fitting relationship of the connecting portion between the tube frame set 33 and the holding frame 34;

FIG. 13 is a view of the tube rack set 33 taken from FIG. 12 to show the mating relationship of the various parts of the tube rack set 33 as a whole;

FIGS. 14 and 15 show the holder 34 of FIG. 12, showing the mating relationship of the parts of the holder 34 as a whole;

finally, the overall working principle is described.

Referring to fig. 1, 2, 3, 4 and 5, a mesenchymal stem cell separation and extraction device comprises a moving frame 1, a working frame 2 and a separation box 3, wherein the moving frame 1 comprises a receiving shell 11 and a handrail frame 12, the handrail frame 12 is symmetrically arranged at the head of the receiving shell 11, the handrail frame 12 is rotatably connected with the receiving shell 11, the receiving shell 11 comprises a U-shaped shell 111 and side plate strips 112, the side plate strips 112 are arranged on the outer side surface of the U-shaped shell 111, the side plate strips 112 are fixedly connected with the U-shaped shell 111, a rotating rod 113 is fixedly arranged in the middle of the U-shaped shell 111, moving wheels 114 are symmetrically arranged on the lower end surface of the U-shaped shell 111, a limiting frame 13 is further arranged on the upper end surface of the side plate strips 112, the limiting frame 13 is horizontally slidably connected with the side plate strips 112, the handrail frame 12 comprises a bending rod 121 and side lugs 122, the side lugs 122 are fixedly arranged on the outer side surface of the bending rod 121, the side surface of the side plate strip 112 is provided with a threaded hole 123 corresponding to the side lug 122, the limiting frame 13 comprises a middle rod 131 and a movable plate 132, the movable plates 132 are symmetrically arranged at two ends of the middle rod 131, the movable plates 132 are vertically and fixedly connected with the middle rod 131, the middle part of the middle rod 131 is connected with the U-shaped shell 111 through an extension spring 133, through researching the structure and the using process of the traditional stem cell separation and extraction equipment, the mesenchymal stem cell separation and extraction device is designed, a user can conveniently install the operation frame 2 through the U-shaped shell 111 when needing to use, the operation frame 2 can be stably installed on the rotating rod 113 in the middle part of the U-shaped shell 111 through the bracket 22, so that the operation frame 2 can be ensured to be flexibly rotated and adjusted on the rotating rod 113, and when needing to be used, the operation frame 2 can be turned out from the U-shaped shell 111, on the contrary, when the foldable operating frame is not used, the operating frame 2 can be turned to the middle part of the U-shaped shell 111, after the top box 21 is turned, a user can clamp the upper end of the top box 21 through the movable plate 132, so that the operating frame 2 can be ensured not to shake in the middle part of the U-shaped shell 111, when the foldable operating frame needs to be turned, the user can pull the movable plate 132 by holding the middle rod 131, the head part of the movable plate 132 is pulled into the U-shaped shell 111, so that the limitation on the top box 21 can be removed, the stable turning operation can be ensured, meanwhile, the auxiliary ring 211 is arranged above the top box 21 to facilitate the better supporting operation on the tray body 311, so that the tray body 311 can stably rotate under the driving of the driving motor 313, after the tray 31 is installed, the user can stably install the box 32 in the tray 31, the box shell 32 can be stably inserted into the limiting pipe 314 of the tray 31 through the inserting plate 321, and then a user passes through the tray body 311 through the bolt to be connected with the inserting plate 321, so that synchronous rotation operation of the box shell 32 and the tray 31 can be ensured in the use process, the user can install the pipe frame set 33 in the box shell 32 after the installation of the box shell 32 is completed, the pipe frame set 33 can be slidably installed on the concave plate 322 through the bending plate 331, and the threaded rod 323 is installed in the threaded through hole 327 of the bending plate 331, so that the user can drive the threaded rods 323 at two sides to synchronously rotate through controlling the rotating motor 325, the purpose of lifting and adjusting the pipe frame set 33 is realized through the mutual matching of the threaded rod 323 and the threaded through hole, so that the pipe frame set 33 can stably extend out of the box shell 32 when a test tube needs to be placed on the pipe frame set 33 or when a test tube needs to be taken out, the device is convenient for a user to operate better, when the device needs to be placed in a test tube, the clamping frame 34 needs to be installed on the upper end face of the tube frame group 33, the clamping frame 34 can be ensured to be sleeved on the insertion rod frame 333 through the tube sleeve 345, so that the arc-shaped plates 342 can be stably installed through the middle shell 341, the arc-shaped plates 342 on the two sides can be ensured to be matched with the semi-circular plates 334 under the action of the supporting springs 344 to clamp the test tube for use, the device is very convenient to use, the problems that the existing stem cell separation and extraction device is simple in structure and cannot be flexibly stored when in use are effectively solved, the device is often required to be disassembled into different parts when the device needs to be loaded for transportation, the operation is complicated, and meanwhile, the height of the test tube cannot be raised or lowered after the traditional stem cell separation and extraction device is processed, and the problem that the user is inconvenient to easily perform extraction operation is solved;

referring to fig. 8 and 9, the work frame 2 is installed in the middle of the storage shell 11, the work frame 2 is fixedly connected with the storage shell 11, the work frame 2 includes a top box 21 and a bracket 22, the bracket 22 is installed on the lower end surface of the top box 21, the bracket 22 is fixedly connected with the top box 21, an auxiliary ring 211 is further arranged on the upper end surface of the top box 21, angle plates 212 are fixedly installed on two sides of the auxiliary ring 211, the angle plates 212 are fixedly connected with the top box 21 through bolts, the top box 21 can be connected with the storage shell 11 through the bracket 22 by means of matching of the structure of the work frame 2, and the auxiliary ring 211 is supported and installed through the angle plates 212, so that the rotation operation of the tray 31 is more stable through the auxiliary ring 211;

referring to fig. 6, 7, 10, 11 and 12, the separation box 3 is installed in the middle of the operation frame 2, and the separation box 3 is rotatably connected with the operation frame 2, the separation box 3 includes a tray 31, a box housing 32 and a pipe frame set 33, the box housing 32 is fixedly installed on the upper end of the tray 31, the pipe frame set 33 is installed in the middle of the box housing 32, and the pipe frame set 33 is longitudinally slidably connected with the box housing 32, the tray 31 includes a tray body 311, a bottom frame 312 and a driving motor 313, the bottom frame 312 is fixedly installed on the lower end surface of the tray body 311, the driving motor 313 is fixedly installed in the middle of the top box 21, and the output end of the driving motor 313 is connected with the bottom frame 312, a limiting pipe 314 is further installed inside the tray body 311, the limiting pipe 314 is fixedly connected with the tray body 311, an inserting plate 321 matched with the limiting pipe 314 is symmetrically arranged on the lower end surface of the box housing 32, the inserting plate 321 is vertically fixed with the box housing 32, concave plates 322 are symmetrically arranged on the inner side surface of the box housing 32, the concave plates 322 are integrally formed with the concave plates 32, the concave plates 322 are further provided with the threaded rod 32, 323, the threaded rod box housing 32 is rotatably connected with the threaded rod 323, and the belt pulley 324 is fixed on the lower end surface of the box housing, the pulley 325, the belt wheel is connected with the motor for ensuring that the motor is connected with the motor to rotate by the motor 311, the motor, the belt wheel 324, the motor 311, and the motor, the motor 324, the belt wheel is connected with the motor 311, and the motor for ensuring that the motor 311 is connected with the motor 311;

referring to fig. 12, 13, 14 and 15, the tube holder group 33 includes a bending plate 331, a horizontal holder 332 and a holding holder 34, two ends of the bending plate 331 are provided with threaded through holes 327 engaged with the threaded rod 323, the horizontal holder 332 is fixedly mounted on an upper end surface of the bending plate 331, the upper end surface of the horizontal holder 332 is further symmetrically provided with a plurality of semi-circular plates 334, the middle portion of the horizontal holder 332 is further provided with a plug-in rod holder 333, the holding holder 34 includes a middle shell 341 and arc plates 342, the arc plates 342 are symmetrically disposed on left and right sides of the middle shell 341, the arc plates 342 are slidably connected with the middle shell 341 through the sliding rods 343, supporting springs 344 are further fixedly mounted between the sliding rods 343, front and rear sides of the middle shell 341 are further provided with tube sleeves 345 engaged with the plug-in rod holder 333, and the tube sleeves 345 are fixedly connected with the middle shell 341, the structure of the tube holder group 33 is configured to ensure that the bending plate 331 supports the horizontal holder 332 and ensure that the holding holder 34 is mounted on the horizontal holder 332, so that the arc plates 342 on the holding holder 34 are engaged with the semi-circular plates 334 to achieve the purpose of holding the use of holding the test tube.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a mesenchymal stem cell separation and extraction device, is including removing frame (1), operation frame (2) and separator box (3), its characterized in that: remove frame (1) including storage shell (11) and handrail frame (12), handrail frame (12) symmetry sets up at the head of storage shell (11), and handrail frame (12) rotate with storage shell (11) and be connected, operation frame (2) are installed at the middle part of storage shell (11), and operation frame (2) and storage shell (11) fixed connection, install at the middle part of operation frame (2) separator box (3), and separator box (3) rotate with operation frame (2) and be connected.

2. The mesenchymal stem cell separation and extraction device according to claim 1, wherein the containing shell (11) comprises a U-shaped shell (111) and side plates (112), the side plates (112) are arranged on the outer side of the U-shaped shell (111), the side plates (112) are fixedly connected with the U-shaped shell (111), and a rotating rod (113) is fixedly arranged in the middle of the U-shaped shell (111).

3. The mesenchymal stem cell separation and extraction device according to claim 2, wherein the lower end surface of the U-shaped shell (111) is further symmetrically provided with a moving wheel (114), the moving wheel (114) is rotatably connected with the U-shaped shell (111), the upper end surface of the side plate strip (112) is further provided with a limiting frame (13), and the limiting frame (13) is horizontally connected with the side plate strip (112) in a sliding manner.

4. The mesenchymal stem cell separation and extraction device according to claim 3, wherein the limiting frame (13) comprises a central rod (131) and movable plates (132), the movable plates (132) are symmetrically arranged at two ends of the central rod (131), the movable plates (132) are vertically and fixedly connected with the central rod (131), and the middle part of the central rod (131) is connected with the U-shaped shell (111) through a tension spring (133).

5. The mesenchymal stem cell separation and extraction device according to claim 4, wherein the handrail frame (12) comprises a bending rod (121) and a side lug (122), the side lug (122) is fixedly installed on the outer side surface of the bending rod (121), and the side surface of the side plate strip (112) is provided with a threaded hole (123) corresponding to the side lug (122).

6. The mesenchymal stem cell separation and extraction device according to claim 1, wherein the working rack (2) comprises a top box (21) and a bracket (22), the bracket (22) is installed on the lower end surface of the top box (21), the bracket (22) is fixedly connected with the top box (21), an auxiliary ring (211) is further arranged on the upper end surface of the top box (21), angle plates (212) are fixedly installed on two sides of the auxiliary ring (211), and the angle plates (212) are fixedly connected with the top box (21) through bolts.

7. The mesenchymal stem cell separating and extracting device is characterized in that the separation box (3) comprises a tray (31), a box shell (32) and a pipe frame group (33), the box shell (32) is fixedly arranged at the upper end of the tray (31), the pipe frame group (33) is arranged in the middle of the box shell (32), and the pipe frame group (33) is longitudinally connected with the box shell (32) in a sliding mode.

8. The mesenchymal stem cell separation and extraction device according to claim 7, wherein the tray (31) comprises a tray body (311), a bottom frame (312) and a driving motor (313), the bottom frame (312) is fixedly arranged on the lower end surface of the tray body (311), the driving motor (313) is fixedly arranged in the middle of the top box (21), the output end of the driving motor (313) is connected with the bottom frame (312), a limiting pipe (314) is further arranged inside the tray body (311), and the limiting pipe (314) is fixedly connected with the tray body (311).

9. The mesenchymal stem cell separation and extraction device of claim 8, characterized in that, the lower terminal surface symmetry of case shell (32) is provided with picture peg (321) with spacing pipe (314) matched with, picture peg (321) and case shell (32) vertical fixation, the symmetry is provided with notch plate (322) on the medial surface of case shell (32), notch plate (322) and case shell (32) integrated into one piece, the middle part of notch plate (322) still is provided with threaded rod (323), threaded rod (323) are connected with case shell (32) rotation, and the lower terminal surface of threaded rod (323) still fixed mounting has belt pulley (324), the center department fixed mounting of terminal surface has rotation motor (325) under case shell (32), the output that rotates motor (325) is connected with belt pulley (324) through synchronous belt (326).

10. The mesenchymal stem cell separation and extraction device according to claim 9, wherein the tube holder group (33) comprises a bending plate (331), a horizontal holder (332) and a clamping holder (34), wherein two ends of the bending plate (331) are provided with a threaded through hole (327) matched with the threaded rod (323), the horizontal holder (332) is fixedly installed on the upper end surface of the bending plate (331), the upper end surface of the horizontal holder (332) is further symmetrically provided with a plurality of semi-circular plates (334), the middle part of the horizontal holder (332) is further provided with a rod inserting holder (333), the clamping holder (34) comprises a middle shell (341) and an arc-shaped plate (342), the arc-shaped plates (342) are symmetrically arranged on the left side and the right side of the middle shell (341), the arc-shaped plates (342) are slidably connected with the middle shell (341) through the sliding rod (343), a supporting spring (344) is further fixedly installed between the sliding rods (343), the front side and the back side of the middle shell (341) are further provided with a tube holder (333) matched with the rod inserting holder (341), and the middle shell (345) is fixedly connected with a tube holder (345).