CN112025793A - Pathology department's sample preparation is with section device - Google Patents
Pathology department's sample preparation is with section device Download PDFInfo
- Publication number
- CN112025793A CN112025793A CN202010860436.3A CN202010860436A CN112025793A CN 112025793 A CN112025793 A CN 112025793A CN 202010860436 A CN202010860436 A CN 202010860436A CN 112025793 A CN112025793 A CN 112025793A
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- Prior art keywords
- plate
- wall
- hole
- frame
- paraffin
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- 230000007170 pathology Effects 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims description 4
- 239000012188 paraffin wax Substances 0.000 claims abstract description 38
- 230000001575 pathological effect Effects 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010827 pathological analysis Methods 0.000 description 2
- 238000011888 autopsy Methods 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000007489 histopathology method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
- B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
- B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
- B26D1/09—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type with a plurality of cutting members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
- B26D7/04—Means for holding or positioning work with clamping means providing adjustable clamping pressure
-
- 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
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/06—Devices for withdrawing samples in the solid state, e.g. by cutting providing a thin slice, e.g. microtome
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to the technical field of medical equipment, in particular to a slicing device for manufacturing a sample of a pathology department, which aims at the problem that the paraffin block embedded with pathological tissues needs to be fixed firstly and then cut troublesome when the paraffin block is cut in the prior art, and the slicing device comprises a frame, wherein a fixed seat is fixedly arranged at the inner side of the bottom of the frame, the paraffin block is arranged at the top of the fixed seat, both sides of the paraffin block are contacted with one side of a clamping plate, rotating plates are fixedly arranged at the other sides of the two clamping plates, two grooves are arranged at the top of the fixed seat, rotating shafts are rotatably arranged in the two grooves, the outer sides of the two rotating shafts are respectively and fixedly connected with the bottoms of the two rotating plates, the slicing device can fix the paraffin block while slicing, saves the step of manually fixing the paraffin block, saves time and labor, simple structure and convenient operation.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a slicing device for manufacturing a sample in a pathology department.
Background
The pathology department is one of the indispensable departments of large-scale comprehensive hospitals, and the main task of the pathology department is to undertake pathological diagnosis work in the medical treatment process, including biopsy, cast-off and fine needle puncture cytology examination and autopsy, so as to provide clear pathological diagnosis for clinic, determine the nature of diseases and find out the cause of death, and the pathological section is that pathological tissues with certain size are taken and made into pathological sections by a histopathology method, usually the pathological tissues are embedded in paraffin blocks and sliced by a slicer.
In the prior art, when cutting the paraffin block embedding pathological changes tissue, need fix the paraffin block earlier, then can cut, it is more troublesome, therefore we have proposed a section device is used in pathology department's sample preparation for solve above-mentioned problem.
Disclosure of Invention
The invention aims to solve the defect that when a paraffin block embedded with pathological tissue is cut, the paraffin block needs to be fixed firstly and then cut, and the cutting is troublesome, and provides a slicing device for manufacturing a sample in a pathology department.
In order to achieve the purpose, the invention adopts the following technical scheme:
a slicing device for manufacturing a pathology department sample comprises a frame, wherein a fixed seat is fixedly installed on the inner side of the bottom of the frame, a paraffin block is placed on the top of the fixed seat, two sides of the paraffin block are respectively contacted with one side of a clamping plate, a rotating plate is fixedly installed on the other side of the two clamping plates, two grooves are formed in the top of the fixed seat, rotating shafts are rotatably installed in the two grooves, the outer sides of the two rotating shafts are respectively and fixedly connected with the bottoms of the two rotating plates, gears are fixedly sleeved on the outer sides of the two rotating shafts, racks are respectively meshed on the two gears, the bottoms of the two racks are fixedly provided with the same connecting plate, one end of a first connecting rod is rotatably installed at the bottom of the connecting plate, a transverse plate is rotatably installed at the other end of the first connecting rod, one end of a second connecting rod is, the other end and the swing board of second connecting rod rotate to be connected, slidable mounting has same lifter plate on the both sides inner wall of frame, has seted up on the lifter plate and has erect the hole, and the swing board contacts with the one side inner wall that erects the hole, and the bottom fixed mounting of lifter plate has the blade that a plurality of equidistance intervals set up.
Preferably, the same connecting hole is formed in the inner wall of one side, close to each other, of each groove, guide rails are fixedly connected to the inner walls of the two sides of the connecting hole, and the connecting plate is connected with the two guide rails in a sliding mode.
Preferably, the top inner wall of the connecting hole is fixedly provided with one end of a plurality of return springs, and the other ends of the return springs are fixedly connected with the top of the connecting plate.
Preferably, the rectangular channel has been seted up to one side of fixing base, the outside of diaphragm and the inner wall sliding connection of rectangular channel, set up the through-hole that is linked together with the connecting hole on the top inner wall of rectangular channel, the head rod is located the through-hole, and the top fixed mounting of fixing base has the fixed block, and the fixed block contacts with the paraffin piece.
Preferably, an air cylinder is fixedly mounted on the inner wall of the top of the frame, an output shaft of the air cylinder is fixedly connected with the top of the lifting plate, and the swinging plate comprises a bent plate and a rectangular plate fixedly mounted at the bottom of the bent plate.
Compared with the prior art, the invention has the advantages that:
(1) when the scheme is used, a paraffin block is placed at the top of the fixing seat, the lifting plate is driven to move downwards through the air cylinder, meanwhile, the bent plate part of the swinging plate is in sliding contact with the left side wall of the vertical hole, so that the swinging plate swings rightwards, the rectangular plate part of the swinging plate is in sliding contact with the left side wall of the vertical hole along with the continuous downward movement of the lifting plate, the swinging plate cannot be extruded to swing rightwards any more, when the swinging plate swings rightwards, the swinging plate can push the transverse plate to move rightwards through the second connecting rod, so that the connecting plate stretches the two reset springs and drives the two racks to move downwards, the two rotating plates drive the two clamping plates to fix the paraffin block, and the lifting plate drives the blades to slice the paraffin block downwards;
(2) the paraffin block fixing device can complete the fixing of the paraffin block while slicing, saves the step of manually fixing the paraffin block, and has the advantages of time and labor saving, simple structure and convenient operation.
Drawings
FIG. 1 is a schematic structural diagram of a slicing apparatus for preparing a pathological specimen according to the present invention;
FIG. 2 is a schematic structural diagram of part A of a slicing device for preparing a pathological specimen according to the present invention;
fig. 3 is a schematic top view of a clamp plate of a slicing apparatus for preparing a pathological specimen according to the present invention.
In the figure: the vertical hole drilling machine comprises a frame 1, a fixed seat 2, a paraffin block 3, a clamping plate 4, a rotating plate 5, a groove 6, a rotating shaft 7, a gear 8, a rack 9, a connecting plate 10, a first connecting rod 11, a transverse plate 12, a second connecting rod 13, a swinging plate 14, a reset spring 15, a fixed block 16, a cylinder 17, a lifting plate 18, a blade 19 and a vertical hole 20.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.
Example one
Referring to fig. 1-3, a slicing device for preparing a pathology department sample comprises a frame 1, a fixed seat 2 is fixedly installed on the inner side of the bottom of the frame 1, a paraffin block 3 is placed on the top of the fixed seat 2, two sides of the paraffin block 3 are both contacted with one side of a clamping plate 4, rotating plates 5 are fixedly installed on the other sides of the two clamping plates 4, two grooves 6 are formed in the top of the fixed seat 2, rotating shafts 7 are rotatably installed in the two grooves 6, the outer sides of the two rotating shafts 7 are respectively and fixedly connected with the bottoms of the two rotating plates 5, gears 8 are fixedly sleeved on the outer sides of the two rotating shafts 7, racks 9 are respectively meshed on the two gears 8, the bottoms of the two racks 9 are fixedly installed with a same connecting plate 10, one end of a first connecting rod 11 is rotatably installed at the bottom of the connecting plate 10, a transverse plate 12 is rotatably installed at the other end of the first, the inner side of the top of the frame 1 is rotatably provided with a swinging plate 14, the other end of the second connecting rod 13 is rotatably connected with the swinging plate 14, the inner walls of two sides of the frame 1 are slidably provided with a same lifting plate 18, the lifting plate 18 is provided with a vertical hole 20, the swinging plate 14 is contacted with the inner wall of one side of the vertical hole 20, and the bottom of the lifting plate 18 is fixedly provided with a plurality of blades 19 which are arranged at intervals at equal intervals.
In this embodiment, the same connecting hole has been seted up on the one side inner wall that two recesses 6 are close to each other, the equal fixedly connected with guide rail of both sides inner wall of connecting hole, connecting plate 10 and two guide rail sliding connection.
In this embodiment, the top inner wall of the connecting hole is fixedly provided with one end of a plurality of return springs 15, and the other ends of the return springs 15 are fixedly connected with the top of the connecting plate 10.
In this embodiment, the rectangular channel has been seted up to one side of fixing base 2, and the outside of diaphragm 12 and the inner wall sliding connection of rectangular channel offer the through-hole that is linked together with the connecting hole on the top inner wall of rectangular channel, and head rod 11 is located the through-hole, and the top fixed mounting of fixing base 2 has fixed block 16, and fixed block 16 contacts with paraffin piece 3.
In this embodiment, an air cylinder 17 is fixedly mounted on the inner wall of the top of the frame 1, an output shaft of the air cylinder 17 is fixedly connected with the top of the lifting plate 18, and the swinging plate 14 includes a bending plate and a rectangular plate fixedly mounted at the bottom of the bending plate.
Example two
Referring to fig. 1-3, a slicing device for preparing a pathology department sample comprises a frame 1, a fixed seat 2 is fixedly installed on the inner side of the bottom of the frame 1 through bolts, a paraffin block 3 is placed on the top of the fixed seat 2, two sides of the paraffin block 3 are both contacted with one side of a clamping plate 4, rotating plates 5 are fixedly installed on the other sides of the two clamping plates 4 through bolts, two grooves 6 are formed in the top of the fixed seat 2, rotating shafts 7 are rotatably installed in the two grooves 6, the outer sides of the two rotating shafts 7 are respectively and fixedly connected with the bottoms of the two rotating plates 5, gears 8 are fixedly sleeved on the outer sides of the two rotating shafts 7, racks 9 are respectively meshed on the two gears 8, the bottoms of the two racks 9 are fixedly provided with a same connecting plate 10 through bolts, one end of a first connecting rod 11 is rotatably installed at the bottom of the connecting plate 10, a, one side of the transverse plate 12 is rotatably provided with one end of a second connecting rod 13, the inner side of the top of the frame 1 is rotatably provided with a swinging plate 14, the other end of the second connecting rod 13 is rotatably connected with the swinging plate 14, the inner walls of two sides of the frame 1 are slidably provided with a same lifting plate 18, the lifting plate 18 is provided with a vertical hole 20, the swinging plate 14 is contacted with the inner wall of one side of the vertical hole 20, and the bottom of the lifting plate 18 is fixedly provided with a plurality of blades 19 which are arranged at equal intervals through bolts.
In this embodiment, same connecting hole has been seted up on the one side inner wall that two recesses 6 are close to each other, the equal fixedly connected with guide rail of both sides inner wall of connecting hole, connecting plate 10 and two guide rail sliding connection, the guide rail makes the stable vertical slip of connecting plate 10.
In this embodiment, there are a plurality of reset springs 15's one end through bolt fixed mounting on the top inner wall of connecting hole, and a plurality of reset springs 15's the other end all with the top fixed connection of connecting plate 10, and reset spring 15 resets connecting plate 10.
In this embodiment, the rectangular channel has been seted up to one side of fixing base 2, and the outside of diaphragm 12 and the inner wall sliding connection of rectangular channel offer the through-hole that is linked together with the connecting hole on the top inner wall of rectangular channel, and head rod 11 is located the through-hole, and there is fixed block 16 at the top of fixing base 2 through bolt fixed mounting, and fixed block 16 contacts with paraffin piece 3, and fixed block 16 is spacing to one side of paraffin piece 3.
In this embodiment, a cylinder 17 is fixedly mounted on the inner wall of the top of the frame 1 through a bolt, an output shaft of the cylinder 17 is fixedly connected with the top of the lifting plate 18, and the swinging plate 14 includes a bending plate and a rectangular plate fixedly mounted at the bottom of the bending plate through a bolt.
In the embodiment, when the paraffin wax machine is used, the paraffin wax block 3 is placed on the top of the fixed seat 2, one side of the paraffin wax block 3 is contacted with the fixed block 16, then the lifting plate 18 can be driven to move downwards through the air cylinder 17, the lifting plate 18 drives the blade 19 to move downwards, meanwhile, the bent plate part of the swinging plate 14 is in sliding contact with the left side wall of the vertical hole 20, the swinging plate 14 swings rightwards, along with the downward movement of the lifting plate 18, the rectangular plate part of the swinging plate 14 is in sliding contact with the left side wall of the vertical hole 20, the swinging plate 14 cannot be extruded to swing rightwards any more, when the swinging plate 14 swings rightwards, the swinging plate 14 pushes the transverse plate 12 to move rightwards through the second connecting rod 13, the transverse plate 12 drives the first connecting rod 11 to move, the first connecting rod 11 pulls the connecting plate 10 to move downwards, the connecting plate 10 pulls the two return springs, make two gears 8 with two rack 9 engaged with rotate towards opposite direction, two gears 8 drive two axis of rotation 7 and rotate, two axis of rotation 7 drive two rotor plates 5 and rotate, two rotor plates 5 drive two splint 4 and fix paraffin piece 3, drive a plurality of blades 19 through lifter plate 18 and slice paraffin piece 3 downwards, section completion back cylinder 17 pulling lifter plate 18 rebound, when perpendicular hole 20 contacts with the bent plate part of swinging plate 14, along with the rebound of lifter plate 18, a plurality of reset spring 15 relieve tensile state and drive connecting plate 10 rebound, and then make diaphragm 12 remove left, make swinging plate 14 swing left, two rotor plates 5 drive two splint 4 simultaneously and relieve the fixed of paraffin piece 3, can take paraffin piece 3 away after the section.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention in the technical scope of the present invention.
Claims (5)
1. The utility model provides a section device is used in pathology department's sample preparation, includes frame (1), its characterized in that, the inboard fixed mounting in bottom of frame (1) has fixing base (2), and paraffin piece (3) have been placed at the top of fixing base (2), the both sides of paraffin piece (3) all contact one side of splint (4), and the equal fixed mounting in opposite side of two splint (4) has rotor plate (5), two recess (6) have been seted up at the top of fixing base (2), and equal rotation installs axis of rotation (7) in two recess (6), the outside of two axis of rotation (7) respectively with the bottom fixed connection of two rotor plates (5), and the outside of two axis of rotation (7) all fixes the cover and is equipped with gear (8), all meshes rack (9) on two gear (8), the bottom fixed mounting of two rack (9) has same connecting plate (10), the bottom of connecting plate (10) is rotated and is installed the one end of head rod (11), and the other end of head rod (11) is rotated and is installed diaphragm (12), and one side of diaphragm (12) is rotated and is installed the one end of second connecting rod (13), and the top inboard of frame (1) is rotated and is installed swing board (14), and the other end and swing board (14) of second connecting rod (13) rotate and be connected, slidable mounting has same lifter plate (18) on the both sides inner wall of frame (1), has seted up on lifter plate (18) and has erect hole (20), and swing board (14) contact with the one side inner wall of erecting hole (20), and the bottom fixed mounting of lifter plate (18) has blade (19) that a plurality of equidistance intervals set up.
2. The slicing device for preparing the pathological specimen according to claim 1, wherein the two grooves (6) are provided with a connecting hole on the inner wall of the side close to each other, the inner walls of the two sides of the connecting hole are fixedly connected with guide rails, and the connecting plate (10) is slidably connected with the two guide rails.
3. The slicing device for preparing the pathological specimen according to claim 2, wherein one end of a plurality of return springs (15) is fixedly mounted on the inner wall of the top of the connecting hole, and the other ends of the plurality of return springs (15) are fixedly connected with the top of the connecting plate (10).
4. The slicing device for manufacturing the pathology department sample according to claim 1, wherein a rectangular groove is formed in one side of the fixing seat (2), the outer side of the transverse plate (12) is in sliding connection with the inner wall of the rectangular groove, a through hole communicated with the connecting hole is formed in the inner wall of the top of the rectangular groove, the first connecting rod (11) is located in the through hole, a fixing block (16) is fixedly installed at the top of the fixing seat (2), and the fixing block (16) is in contact with the paraffin block (3).
5. The slicing device for preparing the pathological specimen is characterized in that an air cylinder (17) is fixedly mounted on the inner wall of the top of the frame (1), an output shaft of the air cylinder (17) is fixedly connected with the top of the lifting plate (18), and the swinging plate (14) comprises a bent plate and a rectangular plate fixedly mounted at the bottom of the bent plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010860436.3A CN112025793B (en) | 2020-08-25 | 2020-08-25 | Pathology department's sample preparation is with section device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010860436.3A CN112025793B (en) | 2020-08-25 | 2020-08-25 | Pathology department's sample preparation is with section device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112025793A true CN112025793A (en) | 2020-12-04 |
| CN112025793B CN112025793B (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010860436.3A Expired - Fee Related CN112025793B (en) | 2020-08-25 | 2020-08-25 | Pathology department's sample preparation is with section device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976072A (en) * | 2021-02-24 | 2021-06-18 | 付登刚 | Lung gland squamous carcinoma tissue slice processing apparatus |
| CN117890183A (en) * | 2024-03-14 | 2024-04-16 | 济南中仁谊科医学检验实验室有限公司 | Paraffin section processing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT293749B (en) * | 1967-10-26 | 1971-10-25 | Sorvall Inc Ivan | Microtome |
| CN209829996U (en) * | 2019-05-05 | 2019-12-24 | 武汉马斯特汽车零部件有限公司 | Back row base control support mould |
| CN110887686A (en) * | 2019-12-16 | 2020-03-17 | 倪明 | Convenient pathological sample preparation is with section device |
| CN210758512U (en) * | 2019-08-28 | 2020-06-16 | 林其平 | Municipal building material detects uses cutting machine |
| CN211135793U (en) * | 2019-12-10 | 2020-07-31 | 青岛泰伦特五金索具有限公司 | Turnbuckle cutting device for hardware rigging processing |
-
2020
- 2020-08-25 CN CN202010860436.3A patent/CN112025793B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT293749B (en) * | 1967-10-26 | 1971-10-25 | Sorvall Inc Ivan | Microtome |
| CN209829996U (en) * | 2019-05-05 | 2019-12-24 | 武汉马斯特汽车零部件有限公司 | Back row base control support mould |
| CN210758512U (en) * | 2019-08-28 | 2020-06-16 | 林其平 | Municipal building material detects uses cutting machine |
| CN211135793U (en) * | 2019-12-10 | 2020-07-31 | 青岛泰伦特五金索具有限公司 | Turnbuckle cutting device for hardware rigging processing |
| CN110887686A (en) * | 2019-12-16 | 2020-03-17 | 倪明 | Convenient pathological sample preparation is with section device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976072A (en) * | 2021-02-24 | 2021-06-18 | 付登刚 | Lung gland squamous carcinoma tissue slice processing apparatus |
| CN112976072B (en) * | 2021-02-24 | 2023-05-12 | 付登刚 | Lung gland squamous carcinoma tissue section processing apparatus |
| CN117890183A (en) * | 2024-03-14 | 2024-04-16 | 济南中仁谊科医学检验实验室有限公司 | Paraffin section processing device |
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| CN112025793B (en) | 2021-12-14 |
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