CN218710337U - Sampler for preparing stem cell sample - Google Patents
Sampler for preparing stem cell sample Download PDFInfo
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- CN218710337U CN218710337U CN202222960815.7U CN202222960815U CN218710337U CN 218710337 U CN218710337 U CN 218710337U CN 202222960815 U CN202222960815 U CN 202222960815U CN 218710337 U CN218710337 U CN 218710337U
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Abstract
The utility model discloses a sampler for preparing stem cell samples, which comprises a mixing mechanism, wherein the mixing mechanism comprises a mixing box fixedly arranged in a shell, and a stirring component is arranged in the mixing box; the first centrifugal mechanism comprises a first centrifugal cylinder which is rotatably connected in the shell, and the first centrifugal cylinder is communicated with the mixing box; the outer wall of the first centrifugal cylinder is abutted with a plurality of first stabilizing assemblies, and the first stabilizing assemblies are fixedly arranged in the shell; the second centrifugal mechanism comprises a second centrifugal cylinder which is rotatably connected in the shell, and the second centrifugal cylinder is communicated with the first centrifugal cylinder; the outer wall of the first centrifugal cylinder is abutted with a second stabilizing assembly; and the separation mechanism comprises a separation box fixedly arranged in the shell, and the separation box is communicated with the second centrifugal cylinder. The utility model discloses stem cell sample separation efficiency is high, and stability is good, greatly reduced in the course of the separation stem cell's damage, improved the output of stem cell sample.
Description
Technical Field
The utility model relates to a sampling equipment field especially relates to a preparation stem cell sample thief.
Background
A stem cell is a cell with unlimited or immortal self-renewal capacity, capable of producing at least one type of highly differentiated progeny cell; the sampling of the stem cells has great effect on the culture and research of the stem cells; the stem cell sampling method used in the current market is mainly to separate stem cells by a centrifuge, then take the stem cells out of the centrifuge and sample the cells.
Chinese patent No. CN202121798308.7 discloses a sampling device for preparing stem cells, which comprises a box body and a box cover, wherein a reagent tube and a sampling mechanism are arranged in the box body, the sampling mechanism comprises a sampling tube and a collecting box, the sampling tube is communicated with the collecting box, a piston cover is arranged at the bottom of the reagent tube, a groove is arranged on the lower surface of the piston cover, an internal thread is arranged on the inner side wall of the groove, a connecting block is arranged at the end part of the sampling tube, an external thread matched with the internal thread is arranged on the connecting block, a sampling part and a conveying part are arranged on the sampling tube, the sampling part is arranged between the connecting block and the conveying part, the sampling part is matched with a through hole, the external diameter of the sampling part is smaller than that of the conveying part, a plurality of first feed inlets are arranged on the sampling part, a baffle ring is arranged in the sampling part, and a plurality of second feed inlets are arranged on the baffle ring; utilize the connecting block to be connected with the piston lid, insert the sampling pipe and locate in the test tube, realize sealed sampling.
However, in the above technical scheme, the stability of the cells in the process of rotating and centrifuging is poor, and the efficiency of preparing the stem cell sample is low; therefore, there is a need for a sampler for stem cell samples to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a preparation stem cell sample thief to solve the problem that above-mentioned prior art exists.
In order to achieve the above object, the utility model provides a following scheme: the utility model provides a preparation stem cell sample thief, include:
the bottom end of the shell is fixedly provided with a plurality of vibration reduction pins;
the mixing mechanism comprises a mixing box fixedly arranged in the shell, and a stirring component is arranged in the mixing box;
the first centrifugal mechanism comprises a first centrifugal cylinder which is rotatably connected in the shell, and the first centrifugal cylinder is communicated with the mixing box; the outer wall of the first centrifugal cylinder is connected with a plurality of first stabilizing assemblies in an abutting mode, and the first stabilizing assemblies are fixedly installed in the shell; the outer wall of the first centrifugal cylinder is in transmission connection with a first driving assembly;
the second centrifugal mechanism comprises a second centrifugal cylinder which is rotatably connected in the shell, and the second centrifugal cylinder is communicated with the first centrifugal cylinder; the outer wall of the first centrifugal cylinder is abutted with a second stabilizing assembly, the second centrifugal cylinder is connected with a second driving assembly in a transmission manner, and the second driving assembly is installed in the shell;
and the separation mechanism comprises a separation box fixedly installed in the shell, and the separation box is communicated with the second centrifugal cylinder.
Preferably, the first stabilizing assembly comprises a stabilizing block fixedly installed in the housing, a stabilizing hole is formed in one side of the stabilizing block facing the first centrifugal cylinder, a stabilizing rod is connected in the stabilizing hole in a sliding manner, a roller is installed at one end of the stabilizing rod facing the first centrifugal cylinder, and the roller abuts against the outer wall of the first centrifugal cylinder and is in rolling contact with the first centrifugal cylinder; and a stabilizing spring is fixedly connected between the stabilizing rod and the bottom end of the stabilizing hole.
Preferably, the first driving assembly comprises a first mounting seat fixedly connected to the side wall of the inner cavity of the housing, a first motor is mounted on the first mounting seat, an output shaft of the first motor is in transmission connection with a driving bevel gear, the driving bevel gear is in meshing connection with a driven bevel gear, and the driven bevel gear is sleeved on and fixedly connected to the outer wall of the first centrifugal cylinder.
Preferably, the second stabilizing component comprises a stabilizing bearing sleeved on the outer wall of the second centrifugal cylinder, the inner wall of the stabilizing bearing is fixedly connected with the outer wall of the second centrifugal cylinder, and a plurality of connecting rods are fixedly connected between the outer wall of the stabilizing bearing and the shell.
Preferably, the second driving assembly includes a second motor fixedly installed in the casing, an output shaft of the second motor is in transmission connection with a driving gear, the driving gear is in meshing connection with a driven gear, and the driven gear is sleeved on and fixedly connected to an outer wall of the second centrifugal cylinder.
Preferably, a first partition plate, a second partition plate and a third partition plate are fixedly connected in sequence from top to bottom in the shell, and the mixing box is fixedly installed on the first partition plate; the first centrifugal cylinder is rotatably connected between the first partition plate and the second partition plate, and the second centrifugal cylinder is rotatably connected between the second partition plate and the third partition plate; the second motor is fixedly arranged on the third partition plate.
Preferably, the mixing tank is communicated with a first liquid inlet pipe and a second liquid inlet pipe, and the first liquid inlet pipe and the second liquid inlet pipe respectively extend out of the shell; the first liquid inlet pipe is communicated with a first liquid inlet pump, and the second liquid inlet pipe is communicated with a second liquid inlet pump.
The utility model discloses a following technological effect: the utility model discloses a sampler for preparing stem cell samples, which is mainly used for preparing and separating stem cell samples, solves the problems of poor stability and easy damage to blood cells during centrifugal separation in the prior device, reduces the loss of the blood cells and improves the preparation and separation efficiency of the samples; the mixing component is used for mixing the collected blood sample with heparin and centrifugate, so that the blood sample is prevented from coagulating in the separation process, and meanwhile, the centrifugal separation is convenient; the first centrifugal mechanism is used for carrying out first centrifugal separation on a blood sample and separating red blood cells, the first driving assembly is used for improving centrifugal power, the first stabilizing assembly is used for keeping the first centrifugal cylinder stable in the centrifugal rotation process, and blood cell breakage caused by vibration cooperation and swing of the first centrifugal cylinder is reduced; the sample after the first centrifugation enters a second centrifugal cylinder, the plasma is centrifuged again, and the mixture is introduced into a separation box for separation, so that a stem cell sample is finally obtained; simultaneously, the stem cell separation process is completely carried out in a sealed environment and is not in contact with the outside, so that the influence of the outside environment on the stem cell sample is reduced. The utility model discloses stem cell sample separation efficiency is high, and stability is good, greatly reduced in the course of the separation stem cell's damage, improved the output of stem cell sample.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a sample sampler for preparing stem cells according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of the top view of the stabilizing bearing of the present invention;
FIG. 4 is an enlarged view of B of FIG. 1 in partial section;
wherein, 1, a shell; 2. a mixing mechanism; 3. a first centrifugal mechanism; 4. a second centrifugal mechanism; 5. a separating mechanism; 11. a first separator; 12. a second separator; 13. a third partition plate; 14. a vibration damping foot; 15. a spring damper; 16. a semiconductor refrigeration sheet; 21. a mixing box; 22. a first liquid inlet pipe; 23. a second liquid inlet pipe; 24. a first liquid inlet pump; 25. a second liquid inlet pump; 26. a stirring motor; 27. a stirring shaft; 31. a first centrifuge tube; 32. a stabilizing block; 33. a stabilization well; 34. a stabilizer bar; 35. a roller; 36. a stabilizing spring; 37. a first mounting seat; 38. a first motor; 39. a drive bevel gear; 310. a driven bevel gear; 41. stabilizing the bearing; 42. a connecting rod; 43. a second motor; 44. a driving gear; 45. a driven gear; 46. a second centrifuge tube; 51. and a separation box.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the following detailed description.
Referring to fig. 1-4, the present invention provides a sampler for preparing stem cell samples, comprising:
the vibration damping device comprises a shell 1, wherein a plurality of vibration damping pins 14 are fixedly arranged at the bottom end of the shell 1;
the mixing mechanism 2 comprises a mixing box 21 fixedly arranged in the shell 1, and a stirring component is arranged in the mixing box 21;
the first centrifugal mechanism 3, the first centrifugal mechanism 3 includes the first centrifugal cylinder 31 that connects to the shell 1 rotatably, the first centrifugal cylinder 31 communicates with mixing box 21; the outer wall of the first centrifugal cylinder 31 is abutted with a plurality of first stabilizing assemblies, and the first stabilizing assemblies are fixedly arranged in the shell 1; the outer wall of the first centrifugal cylinder 31 is in transmission connection with a first driving assembly;
the second centrifugal mechanism 4, the second centrifugal mechanism 4 includes the second centrifugal cylinder 46 that is connected in the outer casing 1 rotatably, the second centrifugal cylinder 46 communicates with first centrifugal cylinder 31; the outer wall of the first centrifugal cylinder 31 is abutted with a second stabilizing assembly, the second centrifugal cylinder 46 is connected with a second driving assembly in a transmission manner, and the second driving assembly is installed in the shell 1;
and the separating mechanism 5, wherein the separating mechanism 5 comprises a separating box 51 fixedly arranged in the shell 1, and the separating box 51 is communicated with the second centrifugal cylinder 46.
The utility model discloses a sample thief for preparing stem cell samples, which is mainly used for preparing and separating stem cell samples, solves the problems of poor stability and easy damage to blood cells during centrifugal separation in the prior device, reduces the loss of the blood cells and improves the preparation and separation efficiency of the samples; the mixing component is used for mixing the collected blood sample with heparin and centrifugate, so that the blood sample is prevented from coagulating in the separation process, and meanwhile, the centrifugal separation is convenient; the first centrifugal mechanism 3 is used for performing first centrifugal separation on a blood sample to separate red blood cells, the first driving assembly provides centrifugal power, the first stabilizing assembly keeps the first centrifugal cylinder 31 stable in the centrifugal rotation process, and blood cell rupture caused by vibration cooperation and swing of the first centrifugal cylinder 31 is reduced; the sample after the first centrifugation enters a second centrifugal cylinder 46, plasma is centrifuged again, and the mixture is introduced into a separation box 51 for separation, so that a stem cell sample is finally obtained; simultaneously, the stem cell separation process is completely carried out in a sealed environment and is not in contact with the outside, so that the influence of the outside environment on the stem cell sample is reduced.
Further, the method for separating the blood sample after centrifugation is the conventional technology, and is not described in detail in this application.
In a further optimized scheme, the first stabilizing assembly comprises a stabilizing block 32 fixedly installed in the housing 1, a stabilizing hole 33 is formed in one side, facing the first centrifugal cylinder 31, of the stabilizing block 32, a stabilizing rod 34 is slidably connected in the stabilizing hole 33, a roller 35 is installed at one end, facing the first centrifugal cylinder 31, of the stabilizing rod 34, and the roller 35 abuts against the outer wall of the first centrifugal cylinder 31 and is in rolling contact with the first centrifugal cylinder 31; a stabilizing spring 36 is fixedly connected between the stabilizing rod 34 and the bottom end of the stabilizing hole 33. When the first centrifugal cylinder 31 rotates, the outer wall thereof is in rolling contact with the roller 35, and the stabilizing spring 36 stabilizes the first centrifugal cylinder 31 through the stabilizing rod 34, so as to prevent blood cells from being broken due to vibration thereof, and the separation of stem cells is affected.
According to a further optimized scheme, the first driving assembly comprises a first mounting seat 37 fixedly connected to the side wall of the inner cavity of the shell 1, a first motor 38 is mounted on the first mounting seat 37, an output shaft of the first motor 38 is in transmission connection with a driving bevel gear 39, the driving bevel gear 39 is in meshing connection with a driven bevel gear 310, and the driven bevel gear 310 is fixedly connected to the outer wall of the first centrifugal cylinder 31 in a sleeved mode. The first motor 38 drives the first centrifugal cylinder 31 to rotate at a set rotation speed through the meshed driving bevel gear 39 and driven bevel gear 310, and centrifugation is performed by high-speed rotation.
In a further optimized scheme, the second stabilizing assembly comprises a stabilizing bearing 41 sleeved on the outer wall of the second centrifugal cylinder 46, the inner wall of the stabilizing bearing 41 is fixedly connected with the outer wall of the second centrifugal cylinder 46, and a plurality of connecting rods 42 are fixedly connected between the outer wall of the stabilizing bearing 41 and the shell 1. The stabilizing bearing 41 is sleeved outside the second centrifugal cylinder 46 by a plurality of connecting rods 42, and the position of the stabilizing bearing 41 cannot deflect, so that the second centrifugal cylinder 46 cannot deflect in the rotating process.
In a further optimized scheme, the second driving assembly comprises a second motor 43 fixedly installed in the housing 1, an output shaft of the second motor 43 is in transmission connection with a driving gear 44, the driving gear 44 is in meshing connection with a driven gear 45, and the driven gear 45 is fixedly connected to the outer wall of the second centrifugal cylinder 46 in a sleeved mode. The second motor 43 drives the second centrifugal cylinder 46 to rotate through the driving gear 44 and the driven gear 45 which are meshed and connected, so as to perform the second centrifugation.
Further, servo motors are used for the first motor 38 and the second motor 43, and are conventional motors, which are not described herein again.
According to a further optimized scheme, a first partition plate 11, a second partition plate 12 and a third partition plate 13 are fixedly connected in sequence from top to bottom in the shell 1, and the mixing box 21 is fixedly arranged on the first partition plate 11; the first centrifugal cylinder 31 is rotatably connected between the first partition plate 11 and the second partition plate 12, and the second centrifugal cylinder 46 is rotatably connected between the second partition plate 12 and the third partition plate 13; the second motor 43 is fixedly mounted on the third partition 13. The first partition 11, the second partition 12 and the third partition 13 are all for dividing the space inside the housing 1 while providing mounting positions for the internal parts.
In a further optimization scheme, the mixing box 21 is communicated with a first liquid inlet pipe 22 and a second liquid inlet pipe 23, and the 22 second liquid inlet pipes 23 of the first liquid inlet pipe respectively extend out of the shell 1; the first liquid inlet pipe 22 is communicated with a first liquid inlet pump 24, and the second liquid inlet pipe 23 is communicated with a second liquid inlet pump 25. The first liquid inlet pump 24 pumps the blood sample into the mixing box 21 through the first liquid inlet pipe 22, the second liquid inlet pump 25 pumps a proper amount of heparin and centrifugal liquid into the mixing box 21 through the second liquid inlet pipe 23, the heparin can prevent the blood sample from coagulating, has anticoagulation effect, and prevents the separation failure caused by blood coagulation in the stem cell separation process; the centrifugate is mainly convenient for centrifugation.
Further, the stirring assembly comprises a stirring motor 26 mounted on the mixing box 21, an output shaft of the stirring motor 26 extends into the mixing box 21 and is in transmission connection with a stirring shaft 27, the stirring shaft 27 is used for uniformly mixing the blood sample, heparin and centrifugate, and meanwhile, the stirring shaft 27 adopts a common medical stirring apparatus to prevent the blood cells from being broken.
Further, a plurality of semiconductor refrigeration pieces 16 are installed in the housing 1, and the semiconductor refrigeration pieces 16 are respectively arranged corresponding to the mixing box 21 and the separating box 51. The semiconductor cooling fins 16 cool the mixing box 21 and the separation box 51 so as to provide a low temperature, and protect the sample from inactivation by the low temperature.
Further, a spring damper 15 is arranged in the damping foot 14 and used for reducing vibration caused by a centrifugal process; the spring damper 15 is a conventional damping device and will not be described in detail here.
The using method comprises the following steps:
injecting stem cell mobilizing agent into donor to release great amount of hemopoietic stem cells from bone marrow to peripheral blood, collecting blood sample of donor and storing at low temperature; then preparing a mixed solution of heparin and centrifugate with proper concentration according to the blood volume, injecting the mixed solution and the centrifugate into the mixing box 21 at the same time, and uniformly mixing the mixed solution through a stirring component;
after uniform mixing, introducing the mixed blood sample into a first centrifuge tube 31, carrying out balance centrifugation, carrying out centrifugation at 4 ℃ and 1000 rpm for 10 minutes to initially separate blood sample components, counting cells, mainly counting white blood cells, red blood cells and platelets, and then separating red blood cells;
after separation, the remaining blood sample is introduced into a second centrifuge bowl 46, centrifuged at 4 degrees 2000 rpm for 10 minutes, and the plasma separated and removed;
the blood sample from which the red blood cells and the plasma were removed was introduced into the separation tank 51, subjected to cell counting, discharged after counting, and stored in liquid nitrogen.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (7)
1. A sampler for preparing a sample of stem cells, comprising:
the vibration damping device comprises a shell (1), wherein a plurality of vibration damping feet (14) are fixedly arranged at the bottom end of the shell (1);
the mixing mechanism (2) comprises a mixing box (21) fixedly arranged in the shell (1), and a stirring assembly is arranged in the mixing box (21);
the first centrifugal mechanism (3) comprises a first centrifugal cylinder (31) which is rotatably connected in the shell (1), and the first centrifugal cylinder (31) is communicated with the mixing box (21); the outer wall of the first centrifugal cylinder (31) is connected with a plurality of first stabilizing assemblies in an abutting mode, and the first stabilizing assemblies are fixedly installed in the shell (1); the outer wall of the first centrifugal cylinder (31) is in transmission connection with a first driving assembly;
the second centrifugal mechanism (4) comprises a second centrifugal cylinder (46) which is rotatably connected in the shell (1), and the second centrifugal cylinder (46) is communicated with the first centrifugal cylinder (31); the outer wall of the first centrifugal cylinder (31) is abutted with a second stabilizing assembly, the second centrifugal cylinder (46) is in transmission connection with a second driving assembly, and the second driving assembly is installed in the shell (1);
the separating mechanism (5) comprises a separating box (51) fixedly installed in the shell (1), and the separating box (51) is communicated with the second centrifugal cylinder (46).
2. The preparative stem cell sample sampler according to claim 1 characterized in that: the first stabilizing assembly comprises a stabilizing block (32) fixedly installed in the shell (1), a stabilizing hole (33) is formed in one side, facing the first centrifugal cylinder (31), of the stabilizing block (32), a stabilizing rod (34) is connected in the stabilizing hole (33) in a sliding mode, a roller (35) is installed at one end, facing the first centrifugal cylinder (31), of the stabilizing rod (34), and the roller (35) abuts against the outer wall of the first centrifugal cylinder (31) and is in rolling contact with the first centrifugal cylinder (31); and a stabilizing spring (36) is fixedly connected between the stabilizing rod (34) and the bottom end of the stabilizing hole (33).
3. The preparative stem cell sample sampler according to claim 1 characterized in that: the first driving assembly comprises a first mounting seat (37) fixedly connected with the inner cavity side wall of the shell (1), a first motor (38) is mounted on the first mounting seat (37), an output shaft of the first motor (38) is in transmission connection with a driving bevel gear (39), the driving bevel gear (39) is in meshing connection with a driven bevel gear (310), and the driven bevel gear (310) is sleeved with a first centrifugal cylinder (31) outer wall.
4. The preparative stem cell sample sampler according to claim 1 characterized in that: the second stabilizes the subassembly including the cover establish the stabilizing bearing (41) of second centrifuge tube (46) outer wall, stabilizing bearing's (41) inner wall with second centrifuge tube (46) outer wall rigid coupling, stabilizing bearing's (41) outer wall with the rigid coupling has a plurality of connecting rods (42) between shell (1).
5. The preparative stem cell sample sampler according to claim 1 characterized in that: the second driving assembly comprises a second motor (43) fixedly mounted in the shell (1), an output shaft of the second motor (43) is in transmission connection with a driving gear (44), the driving gear (44) is in meshed connection with a driven gear (45), and the driven gear (45) is sleeved on the outer wall of the second centrifugal cylinder (46) and fixedly connected with the outer wall of the second centrifugal cylinder.
6. The preparative stem cell sample sampler according to claim 5 wherein: a first partition plate (11), a second partition plate (12) and a third partition plate (13) are fixedly connected in sequence from top to bottom in the shell (1), and the mixing box (21) is fixedly arranged on the first partition plate (11); the first centrifugal cylinder (31) is rotatably connected between the first partition plate (11) and the second partition plate (12), and the second centrifugal cylinder (46) is rotatably connected between the second partition plate (12) and the third partition plate (13); the second motor (43) is fixedly arranged on the third partition plate (13).
7. The preparative stem cell sample sampler according to claim 1 characterized in that: the mixing box (21) is communicated with a first liquid inlet pipe (22) and a second liquid inlet pipe (23), and the first liquid inlet pipe (22) and the second liquid inlet pipe (23) respectively extend out of the shell (1); the first liquid inlet pipe (22) is communicated with a first liquid inlet pump (24), and the second liquid inlet pipe (23) is communicated with a second liquid inlet pump (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222960815.7U CN218710337U (en) | 2022-11-08 | 2022-11-08 | Sampler for preparing stem cell sample |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222960815.7U CN218710337U (en) | 2022-11-08 | 2022-11-08 | Sampler for preparing stem cell sample |
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| Publication Number | Publication Date |
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| CN218710337U true CN218710337U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222960815.7U Active CN218710337U (en) | 2022-11-08 | 2022-11-08 | Sampler for preparing stem cell sample |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117551537A (en) * | 2024-01-11 | 2024-02-13 | 中国人民解放军海军军医大学第二附属医院 | Bacteria detection sampling device for hemodialysis machine |
-
2022
- 2022-11-08 CN CN202222960815.7U patent/CN218710337U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117551537A (en) * | 2024-01-11 | 2024-02-13 | 中国人民解放军海军军医大学第二附属医院 | Bacteria detection sampling device for hemodialysis machine |
| CN117551537B (en) * | 2024-01-11 | 2024-05-07 | 中国人民解放军海军军医大学第二附属医院 | Bacteria detection sampling device for hemodialysis machine |
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