CN112485066A - Medical science inspection liquid multitube difference sampling device - Google Patents
Medical science inspection liquid multitube difference sampling device Download PDFInfo
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- CN112485066A CN112485066A CN202011571325.7A CN202011571325A CN112485066A CN 112485066 A CN112485066 A CN 112485066A CN 202011571325 A CN202011571325 A CN 202011571325A CN 112485066 A CN112485066 A CN 112485066A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
Abstract
The invention relates to the technical field of medical inspection tools, in particular to a multi-tube differential sampling device for medical inspection liquid, which comprises a telescopic support rod, a bottom plate, an injection tube, a push handle, a lifting cylinder, a limiting support rod, a guide plate, a top plate, a lifting handle, a fixing plate, a clamping and fixing device and a limiting and disengaging device, wherein a plurality of clamping holes are uniformly formed in the plate surface of the bottom plate, the clamping and fixing devices are arranged on the bottom surfaces of the bottom plate at two sides of the clamping holes, and the limiting and disengaging device is movably connected between the limiting support rod and the lifting cylinder. And meanwhile, multi-tube suction sampling is carried out, and the use is simple and convenient.
Description
Technical Field
The invention relates to the technical field of medical examination tools, in particular to a multi-tube differential sampling device for medical examination liquid.
Background
Medical examination is a subject of medical diagnosis by applying modern physical and chemical methods and means, and mainly researches how to provide basis for clinical diagnosis and treatment through laboratory technology and medical instruments and equipment. Through system learning, we can understand how to identify a person's blood type, determine whether a person is anemic, whether liver function is normal, how to take X-ray pictures of the chest and limbs of a person, how to perform CT scans, and the like. The subject requires various photoelectric instruments and chemical reagents to complete experimental analysis, so that better physical and chemical bases are required for the subject of the study.
Some experimental detections need to be done often in medical inspection, can need to use sampling device such as injection tube, burette to extract experimental solution or sample solution during the detection usually, this needs a lot of extraction samples, often can do some contrast test detections during the experiment in addition, more need a lot of samplings, it is very troublesome, and some multitube sampling device that have now usually are through concentrating the extraction, can only extract the sample solution of equal volume, the suitability is poor, can not be suitable for the difference sample, it is very inconvenient.
Disclosure of Invention
The invention aims to overcome the technical defects and provide a multi-tube differential sampling device for medical test liquid. Can fix a plurality of injection tube centre grippings on the bottom plate, carry out the joint with pushing away the handle through lifting the cylinder, can set for the position of limiting plate according to the volume scale that every injection tube needs suction, then can lift the roof and drive and carry the cylinder and shift up, make the injection tube carry out the suction sample, can push away the layering to the inboard after spacing post gets into spacing hole, make the joint that pushes away the cylinder and push away the handle break away from, stop the suction, but the different volume's of self-adaptation multitube sample demand, carry out the multitube suction sample simultaneously, high durability and convenient use.
The technical scheme adopted by the invention for solving the technical problems is as follows: a medical inspection liquid multi-tube difference sampling device comprises a telescopic supporting rod, a bottom plate, an injection tube, a push handle, a pull barrel, a limiting supporting rod, a guide plate, a top plate, a pull handle, a fixing piece, a clamping and fixing device and a limiting and separating device, wherein the upper side and the lower side of the left end plate and the right end plate of the bottom plate are fixedly connected with a baffle plate, the left end plate and the right end plate of the bottom plate are fixedly connected with two hinged sheets, the hinged sheets are respectively hinged and fixed with the telescopic supporting rod through a hinged shaft, the telescopic supporting rod is provided with four telescopic parts which are respectively fixed with a locking bolt in a screwed manner, a fixing plate is fixedly connected between the upper ends of inner rods of the front telescopic supporting rod and the lower end plate of the front telescopic supporting rod and the rear telescopic supporting rod, the middle parts of the fixing plate and the baffle plate are respectively provided with corresponding threaded holes, the inner parts of the fixing bolts are, the clamping device comprises a clamping hole, a plurality of clamping pieces, an adjusting bearing, a plurality of adjusting pins, a plurality of push-pull rods, a plurality of lifting cylinders, a plurality of adjusting support rods, a plurality of adjusting pins, a plurality of adjusting bolts, a plurality of lifting cylinders, a plurality of adjusting support rods, a plurality of adjusting screw rods and a plurality of adjusting screw rods, wherein the two fixing support rods are arranged in the clamping hole, the adjusting bearings are fixedly embedded in, the limiting and separating device comprises a sliding sleeve, a limiting bolt, a limiting plate, a guide rod, a compression spring, a clamping column, a pressing strip and a limiting column, scale marks are arranged on the outer walls of the limiting support rod and the injection tube, the cross section of the limiting support rod is square, the upper end of the limiting support rod is fixedly connected to the bottom surface of the guide plate, a plurality of guide holes are uniformly formed in the surface of the guide plate, the pulling cylinder is inserted into the guide holes in a sliding mode, the upper end of the pulling cylinder is fixedly connected to the bottom surface of the top plate, four finger pull rings are uniformly and fixedly connected to the top surface of the top plate, and an inverted U-shaped pulling handle is fixedly connected between the left end and the right end of the top surface of the guide plate.
Furthermore, the lower ends of the telescopic supporting rods are fixedly connected with supporting suckers, and reinforcing rods are fixedly connected between the lower ends of the outer cylinders of the two telescopic supporting rods which are close to each other in the front and back direction.
Further, the centre gripping hole evenly is provided with four, and equal two fixedly connected with of equal symmetry hang the pole on the bottom plate bottom surface of the centre gripping hole left and right sides, the both ends symmetry spiro union of roll adjustment barrel has two roll adjustment screw rods, and the screw thread spiral of two roll adjustment screw rods is opposite, the outer wall middle part fixedly connected with roll adjustment knob of roll adjustment barrel, the right-hand member portion fixedly connected with holding piece of the roll adjustment screw rod on right side, two holding pieces are arc and its relative centre gripping and fix in the outer wall middle part of injection tube, and the left end portion fixed connection of left roll adjustment screw rod is on the lower extreme outer wall that hangs the pole, equal fixedly connected with rubber slipmat on the inboard outer wall of holding piece and stationary blade.
Furthermore, the sliding sleeves are sleeved on the limiting support rods in a sliding manner and are locked and fixed through limiting bolts, limiting plates are fixedly connected between the sliding sleeves at the two sides of the pulling cylinder, the middle parts of the limiting plates are provided with sliding holes sleeved on the pulling cylinder, two limiting holes are symmetrically arranged on the left side and the right side of the sliding hole, four through holes are symmetrically arranged on the two sides of the lower end of the pulling cylinder, a limiting post and a clamping post are respectively inserted in the upper through hole and the lower through hole in a sliding way, the inner side end parts of the limiting post and the clamping post on the same side are fixedly connected on the outer wall of the pressing strip, two guide rods are symmetrically and fixedly connected on the inner wall of the pulling cylinder on the upper side and the lower side of the limiting post, the guide rods are inserted on the two pressing strips in a sliding way, and compression springs are movably sleeved on the, the limiting hole is a triangular groove body at the lower part of the inclined outer side, and the outer side end part of the limiting column is provided with an inclined outer lower inclined plane corresponding to the limiting hole.
Furthermore, a semi-spherical silica gel bulge is fixedly connected to the inner wall of the finger pull ring, and a high-density sponge sleeve is fixedly sleeved on the lifting handle.
The invention has the beneficial effects that: the multi-tube suction sampling device is reasonable in structural design, a plurality of injection tubes can be clamped and fixed on the bottom plate, the pulling cylinders are clamped with the pushing handles, the position of the limiting plate can be set according to the volume scale required to be sucked of each injection tube, then the top plate can be lifted to drive the pulling cylinders to move upwards, so that the injection tubes can be sucked and sampled, the limiting posts can extrude the pressing strips inwards after entering the limiting holes, the pushing cylinders are separated from the pushing handles in a clamping mode, suction is stopped, sampling requirements of multiple tubes with different volumes can be self-adapted, multi-tube suction sampling is carried out, and the multi-tube suction sampling device.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the connection structure of the telescopic strut and the bottom plate of the present invention.
Fig. 3 is a left side schematic view of the clamping fixture of the present invention.
Fig. 4 is a schematic top view of the guide plate of the present invention.
FIG. 5 is a schematic view of the structure of the holding hole of the present invention.
FIG. 6 is a schematic view of the syringe barrel of the present invention.
Fig. 7 is a schematic structural diagram of a limiting plate of the invention.
Fig. 8 is a schematic structural view of the spacing and disengaging device of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in detail below with reference to fig. 1 to 8.
As shown in fig. 1 to 8, the invention comprises a telescopic strut 1, a bottom plate 4, an injection tube 9, a push handle 15, a lifting tube 22, a limit strut 21, a guide plate 23, a top plate 24, a lifting handle 27, a fixing plate 10, a clamping and fixing device and a limit disengaging device, wherein the upper side and the lower side of the left end plate edge and the right end plate edge of the bottom plate 4 are fixedly connected with a baffle plate 3, the left end plate edge and the right end plate edge of the bottom plate 4 are fixedly connected with two hinged sheets 5, the hinged sheets 5 are fixedly hinged with telescopic struts 1 through hinged shafts, the telescopic struts 1 are provided with four telescopic parts, the telescopic parts are fixedly screwed with locking bolts 45, a fixing plate 29 is fixedly connected between the upper ends of inner rods of two telescopic struts 1 which are close to each other in front and back, the middle parts of the fixing plate 29 and the baffle plate 3 are provided with corresponding threaded holes, and are fixedly screwed with fixing, then upwards erects telescopic strut 1 in a rotating manner, so that the space occupation during storage is reduced, a plurality of clamping holes 32 are uniformly formed in the surface of the bottom plate 4, two adjusting holes 33 penetrating through the front and rear plate edges of the bottom plate 4 are symmetrically formed in the front and rear hole walls of the clamping holes 32, two fixing plates 10 with opposite arcs are arranged in the clamping holes 32, adjusting bearings 34 are fixedly embedded in the middle parts of the outer side walls of the two fixing plates 10, adjusting pins 7 are fixedly connected in the inner rings of the adjusting bearings 34, the adjusting pins 7 penetrate through the adjusting holes 33 in a threaded manner, the two fixing plates 10 are clamped and fixed at the upper end of an injection tube 9, the tightness degree of the fixing plates 10 for clamping the injection tube 9 can be adjusted by rotating the adjusting pins 7, clamping fixing devices are arranged on the bottom surfaces of the bottom plates 4 at the two sides of the clamping holes 32 and are clamped and fixed, The clamping piece 11, the distance adjusting screw barrel 13, the distance adjusting screw 14 and the distance adjusting knob 12 are all connected in the injection barrel 9 in a sliding manner, the middle part of the top surface of the piston 36 is all fixedly connected with a push-pull rod 37, the upper end of the push-pull rod 37 is fixedly connected with a push handle 15, a cross groove 38 is arranged on the top surface of the push handle 15, a lifting barrel 22 is movably clamped in the cross groove 38, two limit support rods 21 are symmetrically and fixedly connected on the plate surfaces of the bottom plate 4 at the two sides of the upper end of the clamping hole 32, a limit separation device is movably connected between the limit support rods 21 and the lifting barrel 22, the limit separation device comprises a sliding sleeve 18, a limit bolt 19, a limit plate 17, a guide rod 41, a compression spring 42, a clamping column 44, a pressing strip 43 and a limit column 16, scale marks 20 are arranged on the outer walls of the limit support rods 21 and the injection barrel 9, the cross section of the limit support rods, the plate surface of the guide plate 23 is uniformly provided with a plurality of guide holes 35, the pulling cylinder 22 is inserted in the guide holes 35 in a sliding manner, the upper end of the pulling cylinder 22 is fixedly connected to the bottom surface of the top plate 24, the top surface of the top plate 24 is uniformly and fixedly connected with four finger pull rings 25, and an inverted U-shaped pulling handle 27 is fixedly connected between the left end and the right end of the top surface of the guide plate 23. The sample is sucked and sampled by holding the lifting handle 27, and a finger extends into the finger pull ring 25 to lift the top plate 24, so that the piston 36 is lifted by the lifting cylinder 22.
The lower ends of the telescopic supporting rods 1 are fixedly connected with supporting suckers 2, and reinforcing rods 46 are fixedly connected between the lower ends of the outer cylinders of the two telescopic supporting rods 1 which are close to each other in the front and back. The reinforcing rods 46 and the supporting suction cups 2 increase the stability of the support of the telescopic strut 1.
The centre gripping hole 32 evenly is provided with four, and equal two fixedly connected with suspension rod 8 of symmetry on the bottom plate 4 bottom surface of the centre gripping hole 32 left and right sides, the both ends symmetry spiro union of roll adjustment barrel 13 has two roll adjustment screw rods 14, and the screw thread spiral shell of two roll adjustment screw rods 14 is opposite, the outer wall middle part fixedly connected with roll adjustment knob 12 of roll adjustment barrel 13, the right-hand member portion fixedly connected with holding piece 11 of the roll adjustment screw rod 14 on right side, two holding pieces 11 are arc and its relative centre gripping is fixed in the outer wall middle part of injection tube 9, and the left end portion fixed connection of left roll adjustment screw rod 14 is on suspension rod 8's lower extreme outer wall, equal fixedly connected with rubber slipmat 39 on the inboard outer wall of holding piece 11 and stationary blade 10. The distance adjusting screw rods 14 on two sides can be close to or far away from each other by rotating the distance adjusting knob 12, so that the injection tube 9 can be clamped and fixed by adjusting the two clamping pieces 11, and meanwhile, the fixing piece 10 and the clamping pieces 11 are clamped and fixed on the upper side and the middle part of the injection tube 9 respectively, and the clamping and fixing are firm.
The sliding sleeve 18 is slidably sleeved on the limiting support rod 21 and is locked and fixed through a limiting bolt 19, a limiting plate 17 is fixedly connected between the sliding sleeves 18 at two sides of the pulling barrel 22, a sliding hole 30 is arranged in the middle of the limiting plate 17 and is sleeved on the pulling barrel 22, two limiting holes 31 are symmetrically arranged at the left side and the right side of the sliding hole 30, four through holes 40 are symmetrically arranged at two sides of the lower end of the pulling barrel 22, a limiting column 16 and a clamping column 44 are respectively inserted in the upper through hole and the lower through hole 40 in a sliding manner, the inner side end parts of the limiting column 16 and the clamping column 44 at the same side are fixedly connected on the outer wall of a pressing strip 43, two guide rods 41 are symmetrically and fixedly connected on the inner wall of the pulling barrel 22 at the upper side and the lower side of the limiting column 16, the guide rods 41 are inserted in the two pressing strips 43 in a sliding manner, compression springs 42, the outer end of the limiting column 16 is provided with an inclined surface which is inclined outwards and downwards and corresponds to the limiting hole 31. The lower end of the pulling barrel 22 can be inserted into the cross groove 38 of the pushing handle 15, under the elasticity of the compression spring 42, the clamping columns 44 can extend out of the through hole and are clamped into two sides of the cross groove 38, so that the pulling barrel 22 and the pushing handle 15 are clamped and fixed, when the pulling barrel 22 is lifted, when the limiting column 16 enters the limiting hole 31 and is lifted continuously, the inclined plane of the limiting hole 31 can extrude the inclined plane of the limiting column 16 to be contracted towards the inside of the pulling barrel 22, so that the two pressing strips 43 are close to each other, the clamping columns 44 on two sides are driven to be contracted inwards into the pulling barrel 22, the clamping between the pulling barrel 22 and the pushing handle 15 is released, the pushing handle 15 cannot be pulled upwards continuously when the pulling barrel 22 is lifted, and the solution suction sampling of the injection barrel 9 is stopped.
The ring inner wall of the finger pull ring 25 is fixedly connected with a semi-spherical silica gel bulge 26, and the lifting handle 27 is fixedly sleeved with a high-density sponge sleeve 28. The high density sponge 28 and the silicone protrusions 26 increase comfort when lifted.
During the use, injection tube 9 centre gripping is fixed on bottom plate 4 through stationary blade 10 and clamping piece 11, with carrying in the cross groove 38 of pull-up section of thick bamboo 22 lower extreme joint to push handle 15, adjust limiting plate 17 to corresponding scale department as required, place the sample bottle in injection tube 9 downside, then adjust the support height of telescopic strut 1, make the syringe needle of injection tube 9 stretch into in the solution, then handheld pull-up handle 27, carry out roof 24, make piston 36 move up and aspirate solution, can receive pressure after spacing post 16 shifts up spacing hole 31 and inwards contract, make joint post 44 inwards move and relieve the joint with cross groove 38 and fix, carry pull-up section of thick bamboo 22 to continue to move up, can continue to accomplish the suction sample of all the injection tubes 9.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a medical science inspection liquid multitube difference sampling device, includes telescopic support rod, bottom plate, injection tube, pushes away the handle, carries a pull section of thick bamboo, spacing branch, deflector, roof, carries a pull handle, stationary blade, centre gripping fixing device, spacing disengaging gear, its characterized in that: the upper side and the lower side of the left and the right end plate edges of the bottom plate are fixedly connected with baffle plates, the left and the right end plate edges of the bottom plate are fixedly connected with two hinged sheets, the hinged sheets are hinged and fixed with telescopic supporting rods through hinged shafts, the telescopic supporting rods are provided with four telescopic parts which are all screwed and fixed with locking bolts, a fixed plate is fixedly connected between the upper ends of inner rods of the two telescopic supporting rods which are close to each other in the front and the back, the middle parts of the fixed plate and the baffle plates are provided with corresponding threaded holes and are internally screwed and fixed with fixing bolts, the surface of the bottom plate is uniformly provided with a plurality of clamping holes, the front hole wall and the back hole wall of each clamping hole are symmetrically provided with two adjusting holes penetrating through the front and the back plate edges of the bottom plate, two fixing plates which are opposite in arc shapes are arranged in the clamping holes, adjusting, the adjusting device comprises an adjusting pin, two fixing pieces, a clamping piece, a distance adjusting screw cylinder, a distance adjusting screw rod and a distance adjusting knob, wherein the adjusting pin is in threaded connection with the adjusting hole, the two fixing pieces are clamped and fixed at the upper end of the injection cylinder, a clamping fixing device is arranged on the bottom plate bottom surfaces of the two sides of the clamping hole and is clamped and fixed in the middle of the injection cylinder, the clamping fixing device comprises a suspension rod, the clamping piece, the distance adjusting screw cylinder, the distance adjusting screw rod and the distance adjusting knob, a piston is connected in the injection cylinder in a sliding mode, a push-pull rod is fixedly connected in the middle of the top surface of the piston, a push handle is fixedly connected at the upper end of the push handle, a cross groove is formed in the top surface of the push handle, a lifting cylinder is movably clamped and connected in the cross groove, two limiting support rods are symmetrically, The lifting cylinder is characterized by comprising clamping columns, pressing strips and limiting columns, scale marks are arranged on the outer walls of the limiting supporting rods and the outer wall of the injection cylinder, the cross section of each limiting supporting rod is square, the upper end of each limiting supporting rod is fixedly connected to the bottom surface of the guide plate, a plurality of guide holes are uniformly formed in the surface of the guide plate, the lifting cylinder is inserted into the guide holes in a sliding mode, the upper end of the lifting cylinder is fixedly connected to the bottom surface of the top plate, four finger pull rings are uniformly and fixedly connected to the top surface of the top plate, and an inverted U-shaped lifting handle is fixedly connected between the left end and the right end of.
2. A medical testing multi-tube differential liquid sampling device according to claim 1, wherein: the lower ends of the telescopic supporting rods are fixedly connected with supporting suckers, and reinforcing rods are fixedly connected between the lower ends of the outer cylinders of the two telescopic supporting rods which are close to each other in the front and back direction.
3. A medical testing multi-tube differential liquid sampling device according to claim 1, wherein: the centre gripping hole evenly is provided with four, and equal symmetrical fixedly connected with hangs the pole on the bottom plate bottom surface of the centre gripping hole left and right sides, the both ends symmetry spiro union of roll adjustment barrel has two roll adjustment screw rods, and the screw thread spiral shell of two roll adjustment screw rods is opposite, the outer wall middle part fixedly connected with roll adjustment knob of roll adjustment barrel, the right-hand member portion fixedly connected with holding piece of the roll adjustment screw rod on right side, two holding pieces are arc and its relative centre gripping and fix in the outer wall middle part of injection tube, and the left end fixed connection of left roll adjustment screw rod is on the lower extreme outer wall that hangs the pole, equal fixedly connected with rubber slipmat on the inboard outer wall of holding piece and stationary blade.
4. A medical testing multi-tube differential liquid sampling device according to claim 1, wherein: the sliding sleeves are sleeved on the limiting support rods in a sliding manner and are locked and fixed through limiting bolts, a limiting plate is fixedly connected between the sliding sleeves at the two sides of the pulling cylinder, a sliding hole is arranged in the middle of the limiting plate and sleeved on the pulling cylinder, two limiting holes are symmetrically arranged on the left side and the right side of the sliding hole, four through holes are symmetrically arranged on the two sides of the lower end of the pulling cylinder, a limiting post and a clamping post are respectively inserted in the upper through hole and the lower through hole in a sliding way, the inner side end parts of the limiting post and the clamping post on the same side are fixedly connected on the outer wall of the pressing strip, two guide rods are symmetrically and fixedly connected on the inner wall of the pulling cylinder on the upper side and the lower side of the limiting post, the guide rods are inserted on the two pressing strips in a sliding way, and compression springs are movably sleeved on the, the limiting hole is a triangular groove body at the lower part of the inclined outer side, and the outer side end part of the limiting column is provided with an inclined outer lower inclined plane corresponding to the limiting hole.
5. A medical testing multi-tube differential liquid sampling device according to claim 1, wherein: the ring inner wall of the finger pull ring is fixedly connected with a hemispherical silica gel bulge, and the lifting handle is fixedly sleeved with a high-density sponge sleeve.
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| CN202211051464.6A CN115326486A (en) | 2020-12-27 | 2020-12-27 | Multi-tube differential sampling detection device and using method |
| CN202011571325.7A CN112485066B (en) | 2020-12-27 | 2020-12-27 | Medical science inspection liquid multitube difference sampling device |
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| CN202011571325.7A CN112485066B (en) | 2020-12-27 | 2020-12-27 | Medical science inspection liquid multitube difference sampling device |
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Cited By (4)
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| CN113252400A (en) * | 2021-05-13 | 2021-08-13 | 西安市红会医院 | Cell suction device for biological immune cell detection |
| CN113477288A (en) * | 2021-07-18 | 2021-10-08 | 王克艳 | Refined quantitative medicine distribution device for pharmaceutical experiment |
| CN113532991A (en) * | 2021-07-18 | 2021-10-22 | 孙彩红 | Slide glass smear device for medical examination |
| CN115326486A (en) * | 2020-12-27 | 2022-11-11 | 刘秀英 | Multi-tube differential sampling detection device and using method |
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| CN112485066B (en) | 2022-09-27 |
| CN115326486A (en) | 2022-11-11 |
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