CN219705371U

CN219705371U - Cartilage tissue block preparation tool

Info

Publication number: CN219705371U
Application number: CN202223372235.2U
Authority: CN
Inventors: 邓志钦; 李文翠; 刘建全; 王大平; 赵喆; 尹建文; 李嘉贝; 罗婉婷
Original assignee: Shenzhen Second Peoples Hospital
Current assignee: Shenzhen Second Peoples Hospital
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-09-19
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a cartilage tissue block preparation tool which relates to the technical field of experimental instruments, and the cartilage tissue block preparation tool comprises an adjusting piece and a cutting knife, wherein when a worker uses a scissor operating rod to drive the cutting knife to press down and is matched with a bearing base to cut cartilage tissues, the worker only needs to use the adjusting piece to lift up a grid knife, so that the grid knife is separated from a groove column, and the grid knife is contracted in a containing groove of a cutter shell, the cut cartilage tissue block is enabled to recover to the self height, at the moment, the worker only needs to drive the cutting knife to slide along the upper end face of the lower shell through a driving component, and the cutting knife cuts the cartilage tissue block with the height higher than that of the groove column in the sliding process, so that the finally prepared cartilage tissue block accords with a standard block structure, the qualification rate of finished cartilage tissue blocks is improved, and the cartilage tissue block is not easy to be polluted by external environment in the same preparation tool.

Description

Cartilage tissue block preparation tool

Technical Field

The utility model relates to the technical field of experimental instruments, in particular to a cartilage tissue block preparation tool.

Background

Chondrocytes are the only cellular component in cartilage tissue, and successful in vitro culture of cartilage tissue is of great importance for the study of osteoarticular diseases. Since cartilage tissue is not easily collected and obtained, a clinical cartilage sample is more precious, so that it is important to effectively extract chondrocytes from an active cartilage sample and further culture cartilage tissue blocks, and the chondrocyte culture and the cartilage tissue block culture need to prepare the cartilage tissue into a block or granular structure (1 mm) ³ ) Thereby further digesting or culturing the tissue mass.

Among the prior art, disclosed in chinese patent application No. 202120452504.2 is a cartilage tissue block preparation tool, including the base, a plurality of protection pads are pasted to the lower extreme of base, install the connecting plate in the base, the connecting plate is detachable with the base and is connected, the upper end fixed mounting of connecting plate has a plurality of grooved posts, the upper end of base is equipped with the apron.

The length and width of the multiple cartilage tissue blocks cut by the cartilage tissue block preparation tool are equal under the limit of the groove column and the grid knife, but the cartilage tissue blocks have certain elastic performance, so that the height of the cartilage tissue blocks can be reduced during cuttingCompression, resulting in a non-uniform height of the cut cartilage tissue mass, resulting in a non-standard (1 mm) ³ ) The blocky structure of the cartilage tissue cutting device needs to be trimmed by using other instruments again or the cartilage tissue is pretreated by using other instruments before cutting, and the cartilage tissue blocks are still easy to pollute due to the fact that the cartilage tissue blocks need to be transferred again in the repeated trimming process.

Disclosure of Invention

The object of the present utility model is to provide a tool for preparing cartilage tissue mass which overcomes the drawbacks of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the cartilage tissue block preparation tool comprises a shearing fork operating rod and a cutting assembly, wherein the shearing fork operating rod consists of two arc plates which are arranged in a crossing way, the cutting assembly comprises a cutting tool and a bearing base which is matched with the cutting tool, the cutting tool is hinged with one side of the bearing base, one ends of the two arc plates are respectively hinged with the upper end of the cutting tool and the lower end of the bearing base, the cutting tool comprises a tool shell and a grid cutter, the lower end of the tool shell is provided with a containing groove which is in sliding connection with the grid cutter, and the upper end of the grid cutter is fixedly provided with an adjusting piece which penetrates through the upper end of the tool shell; the bearing base is also provided with a cutting knife.

Preferably, the above-mentioned cartilage tissue block preparation tool, the bearing base comprises a lower shell and a grooved column, the lower shell is hinged with one side of the cutter shell, and the grooved column is matched with the grid cutter.

Preferably, the cutter is slidably connected to the upper surface of the lower housing, and a driving assembly for driving the cutter to slide along the upper end surface of the lower housing is mounted on the side wall of the lower housing.

Preferably, the adjusting piece comprises an adjusting column and an adjusting block, wherein the lower end of the adjusting column movably penetrates through the cutter shell and is fixed with the upper end of the grid cutter, a through hole which is matched with the adjusting block in the direction is formed in the cutter shell, the adjusting block is fixed with the adjusting column, and the length of the adjusting block is larger than the width of the through hole in the cutter shell.

Preferably, the drive assembly comprises three drive wheels, a transmission belt and a drive screw, wherein the drive wheels are sleeved on the outer sides of the two adjacent drive wheels, the drive screw is fixed with the drive wheels on two sides, the drive wheel on the middle part is rotationally connected with the side wall of the lower shell, which is far away from the side of the scissor operating rod, the drive screw is rotationally connected with the lower shell through a fixing piece, a movable block is fixed at the lower end of the cutting knife, and the drive screw threads penetrate through the movable block.

Preferably, the fixing piece comprises two mounting blocks which are respectively connected with the front end and the rear end of the driving screw in a rotating way, and the side wall of each mounting block is fixed with the side wall of the lower shell.

Preferably, an operating crank is fixed at one end of one of the driving wheels, which is far away from the lower housing, and the operating crank rotates coaxially with the driving wheel.

Preferably, the lower end of the cutting knife is fixedly provided with a sliding column, and the upper end surface of the lower shell is provided with a sliding groove for the sliding column to slide.

Preferably, the lower end of the bearing base is hinged with one arc-shaped plate end of the scissor operating rod, the upper end of the cutting tool is connected with a sliding block in a sliding manner, and the cutting tool is hinged with the other arc-shaped plate end of the scissor operating rod through the sliding block.

In conclusion, after the technical scheme is adopted, the technical effects and advantages of the utility model are as follows:

firstly, when the utility model is implemented, through the arrangement of the adjusting piece and the cutting knife, after a worker uses the scissor operating rod to drive the cutting knife to press downwards and match with the bearing base to cut cartilage tissues, the worker only needs to use the adjusting piece to lift the grid knife so as to separate the grid knife from the groove column, and the grid knife is contracted in the accommodating groove of the knife shell, so that the cut cartilage tissue blocks restore the self height, at the moment, the worker only needs to drive the cutting knife to slide along the upper end surface of the lower shell, and the cutting knife cuts the cartilage tissue blocks with the height higher than the groove column in the sliding process, so that the finally manufactured cartilage tissue blocks all conform to the standard block structure, the finished product qualification rate of the cartilage tissue blocks is improved, and meanwhile, the manufacturing is completed in the same manufacturing tool, so that the cartilage tissue blocks are not easy to be polluted by external environment.

In the utility model, the sliding column is matched with the sliding groove for use through the arrangement of the sliding column and the sliding groove, so that the cutting knife is more stable in the moving process, and the cutting knife is further enabled.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of the present embodiment;

FIG. 2 is a schematic perspective view of the cutting assembly according to the present embodiment;

FIG. 3 is a schematic cross-sectional view of the cutter in this embodiment;

fig. 4 is a schematic diagram of a driving assembly structure in the present embodiment.

In the figure: 1. a scissors fork operating lever; 2. a cutting assembly; 21. a cutting tool; 211. a cutter housing; 212. a grid knife; 22. a load-bearing base; 221. a lower housing; 222. a grooved column; 3. a sliding block; 4. an adjusting column; 41. an adjusting block; 5. a cutting knife; 51. a movable block; 52. a sliding column; 6. a drive assembly; 61. a driving wheel; 62. a drive belt; 63. driving a screw; 64. a mounting block; 65. and operating the crank.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1-3, a cartilage tissue block preparation tool comprises a scissors operation rod 1 and a cutting assembly 2, wherein the cutting assembly 2 comprises a cutting tool 21 and a bearing base 22 matched with the cutting tool 21, the cutting tool 21 is hinged with one side of the bearing base 22, the scissors operation rod 1 consists of two arc plates which are arranged in a crossed mode, one ends of the two arc plates are respectively hinged with the upper end of the cutting tool 21 and the lower end of the bearing base 22, the lower end of the bearing base 22 is hinged with one arc plate end of the scissors operation rod 1, the upper end of the cutting tool 21 is in sliding connection with a sliding block 3, the cutting tool 21 is hinged with the other arc plate end of the scissors operation rod 1 through the sliding block 3, the cutting tool 21 comprises a tool shell 211 and a grid tool 212, a containing groove which is in sliding connection with the grid tool 212 is formed in the lower end of the tool shell 211, an adjusting piece which penetrates through the upper end of the tool shell 211 is fixed, the adjusting piece is used for adjusting and fixing the distance between the grid tool 212 and the inner top wall of the containing groove of the grid tool shell, the bearing base 22 comprises a lower shell 221 and a groove column 222, the lower shell 221 is connected with the upper end of the lower shell 221 in a sliding manner, the lower shell 221 is connected with the upper end of the lower shell 221 and the lower shell 5 is provided with the sliding surface of the lower shell 221, and the lower shell 221 is provided with a sliding part 5, and the lower end of the cutting tool body is provided with a sliding part, and the lower end of the lower shell 221 is provided with a 5.

Based on the above structure, when the worker uses the scissors operating lever 1 to drive the cutting tool 21 to press down and cooperate with the bearing base 22 to cut cartilage tissue, the worker only needs to use the adjusting piece to lift the grid knife 212, so that the grid knife 212 is separated from the groove column 222, and the grid knife 212 is contracted in the accommodating groove of the tool housing 211, so that the cut cartilage tissue block recovers to the self height, at this moment, the worker only needs to drive the cutting tool 5 to slide along the upper end face of the lower housing 221 through the driving component, and the cutting tool 5 cuts the cartilage tissue block with the height higher than the groove column 222 in the sliding process, so that the finally manufactured cartilage tissue block meets the standard block structure, the finished product qualification rate of the cartilage tissue block is improved, and meanwhile, the manufacturing is completed in the same manufacturing tool, so that the cartilage tissue block is not easy to be polluted by the external environment.

As shown in fig. 2-3, the adjusting member includes an adjusting column 4 and an adjusting block 41, the lower end of the adjusting column 4 movably penetrates through the cutter housing 211 and is fixed with the upper end of the grid knife 212, a through hole which is matched with the adjusting block 41 is formed in the cutter housing 211, the adjusting block 41 is fixed with the adjusting column 4, the length of the adjusting block 41 is larger than the width of the through hole in the cutter housing 211, when the grid knife 212 needs to be used for cutting, a worker only needs to press the adjusting column 4, the adjusting column 4 drives the adjusting block 41 to pass through the through hole in the cutter housing 211, and after the adjusting block 41 passes through the through hole, the adjusting column 4 drives the adjusting block 41 to rotate again, so that the grid knife 212 stretches out of an accommodating groove of the cutter housing 211, the grid knife 212 is convenient to cut cartilage tissues in cooperation with the groove column 222, when the cartilage tissue block with the height higher than the groove column 222 needs to be cut, the worker only needs to lift the adjusting column 4, the adjusting column 4 drives the adjusting block 41 to pass through the through hole in the cutter housing 211, and after the adjusting block 41 passes through the through hole, the adjusting block 41 is used for driving the adjusting block 41 to rotate again, so that the grid knife 212 can be contracted in the accommodating groove 211, and the cutter housing 211 can be accommodated in the accommodating groove 5.

As shown in fig. 1 and 4, the driving assembly 6 includes driving wheels 61, a driving belt 62 and a driving screw 63, the driving wheels 61 are provided with three, the driving belt 62 is sleeved outside two adjacent driving wheels 61, the driving screw 63 is fixed with the driving wheels 61 at two sides, the driving wheels 61 at the middle part are rotationally connected with the side wall of the lower shell 221 at one side far away from the scissor operating rod 1, the driving screw 63 is rotationally connected with the lower shell 221 through a fixing piece, the movable block 51 is fixed at the lower end of the cutting blade 5, the driving screw 63 threads penetrate through the movable block 51, the fixing piece includes a mounting block 64, the mounting block 64 is provided with two and is rotationally connected with the front end and the rear end of the driving screw 63 respectively, the side wall of the mounting block 64 is fixed with the side wall of the lower shell 221, when a cutting blade 5 needs to be driven to move, a worker only needs to rotate the driving wheel 61 at the middle part, the driving wheel 61 at the middle part drives the two sides to synchronously rotate in the same direction through the driving belt 62, thereby driving the driving screws 63 at two sides to rotate, and the movable block 51 is driven to axially move along the driving screw 63 when the driving screw 63 rotates, so as to cut cartilage tissue blocks in the groove column 222;

one end of one driving wheel 61 far away from the lower shell 221 is fixed with an operation crank 65, the operation crank 65 and the driving wheel 61 rotate coaxially, the operation crank 65 is arranged to facilitate the rotation of the driving wheel 61 by workers, the lower end of the cutting knife 5 is fixed with a sliding column 52, the upper end face of the lower shell 221 is provided with a sliding groove for the sliding column 52 to slide, and the sliding column 52 is matched with the sliding groove for use, so that the cutting knife 5 is more stable in the moving process, and the cutting knife is further enabled.

The working principle of the utility model is as follows: in the daily use process, the staff firstly needs to place cartilage tissues on the bearing base 22, then the operation lever 1 is operated to be closed, the cutting tool 21 is pressed down and matched with the bearing base 22 to cut the cartilage tissues, after the cutting is completed, the staff only needs to lift the adjusting column 4, the adjusting column 4 drives the adjusting block 41 to pass through the through hole on the tool shell 211, and the adjusting column 4 is used for driving the adjusting block 41 to rotate again after the adjusting block 41 passes through the through hole, so that the grid knife 212 is contracted in the accommodating groove of the tool shell 211, the cut cartilage tissue blocks recover to the self height, at the moment, the staff needs to rotate the operation crank 65, the operation crank 65 drives the driving wheel 61 in the middle to rotate, the driving wheel 61 in the middle drives the driving wheels 61 on two sides to synchronously rotate in the same direction through the transmission belt 62, so that the driving screw 63 on two sides is driven to rotate, the movable block 51 is driven to axially move along the driving screw 63, the cutting knife 5 is driven to slide along the upper end face of the lower shell 221, the cutting knife 5 is driven to rotate the cartilage tissue blocks with the height higher than the groove column 222 in the sliding process, at the same time, the cartilage tissue blocks are produced in the same manufacturing process, and the cartilage tissue blocks are not polluted by the manufacturing environment, and the cartilage tissue blocks are produced in the manufacturing process is different from the manufacturing environment.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a cartilage tissue piece preparation instrument, includes scissors action bars (1) and cutting assembly (2), scissors action bars (1) are by two arc plates that alternately set up are constituteed, cutting assembly (2) include cutting tool (21) and bear base (22) with cutting tool (21) looks adaptation, cutting tool (21) are articulated with bear base (22) one side, two one end of arc plate respectively with cutting tool (21) upper end and bear base (22) lower extreme articulated, characterized in that, cutting tool (21) include cutter housing (211) and net sword (212), the holding tank with net sword (212) sliding connection is seted up to cutter housing (211) lower extreme, net sword (212) upper end is fixed with the regulating part that runs through cutter housing (211) upper end; the bearing base (22) is also provided with a cutting knife (5).

2. A tool for preparing a block of cartilage tissue according to claim 1, wherein: the bearing base (22) comprises a lower shell (221) and a groove column (222), the lower shell (221) is hinged with one side of the cutter shell (211), and the groove column (222) is matched with the grid cutter (212).

3. A tool for preparing a block of cartilage tissue according to claim 2, wherein: the cutting knife (5) is connected with the upper surface of the lower shell (221) in a sliding way, and a driving assembly (6) for driving the cutting knife (5) to slide along the upper end face of the lower shell (221) is arranged on the side wall of the lower shell (221).

4. A tool for preparing a block of cartilage tissue according to claim 1, 2 or 3, characterized in that: the adjusting piece comprises an adjusting column (4) and an adjusting block (41), wherein the lower end of the adjusting column (4) movably penetrates through the cutter shell (211) and is fixed with the upper end of the grid cutter (212), a through hole which is matched with the adjusting block (41) is formed in the cutter shell (211), the adjusting block (41) is fixed with the adjusting column (4), and the length of the adjusting block (41) is larger than the width of the through hole in the cutter shell (211).

5. A tool for preparing a block of cartilage tissue according to claim 3, wherein: the driving assembly (6) comprises driving wheels (61), a driving belt (62) and driving screws (63), the driving wheels (61) are provided with three driving wheels (61), the driving belts (62) are sleeved on the outer sides of the two adjacent driving wheels (61), the driving screws (63) are fixed with the driving wheels (61) on two sides, the driving wheels (61) in the middle are rotationally connected with the side wall of the lower shell (221) on one side, far away from the scissor operating rod (1), of the driving screws (63) and are rotationally connected with the lower shell (221) through fixing pieces, movable blocks (51) are fixed at the lower ends of the cutting knives (5), and the driving screws (63) penetrate through the movable blocks (51) in a threaded mode.

6. A tool for preparing a block of cartilage tissue according to claim 5, wherein: the fixing piece comprises mounting blocks (64), the two mounting blocks (64) are respectively connected with the front end and the rear end of the driving screw rod (63) in a rotating mode, and the side wall of each mounting block (64) is fixed with the side wall of the lower shell (221).

7. A tool for preparing a block of cartilage tissue according to claim 6, wherein: the driving assembly (6) further comprises an operation crank (65), wherein the operation crank (65) is arranged at one end, far away from the lower shell (221), of one driving wheel (61), and the operation crank (65) and the driving wheel (61) rotate coaxially.

8. A tool for preparing a block of cartilage tissue according to claim 2 or 3, characterized in that: the lower end of the cutting knife (5) is fixedly provided with a sliding column (52), and the upper end surface of the lower shell (221) is provided with a sliding groove for the sliding column (52) to slide.

9. A tool for preparing a block of cartilage tissue according to claim 1, 2 or 3, characterized in that: the lower end of the bearing base (22) is hinged with one arc-shaped plate end of the scissors operating rod (1), the upper end of the cutting tool (21) is connected with a sliding block (3) in a sliding mode, and the cutting tool (21) is hinged with the other arc-shaped plate end of the scissors operating rod (1) through the sliding block (3).