CN214748056U

CN214748056U - Human body graft tester

Info

Publication number: CN214748056U
Application number: CN202121345405.0U
Authority: CN
Inventors: 徐敏省
Original assignee: Shanghai Yingge Intelligent Technology Co ltd
Current assignee: Shanghai Yingge Intelligent Technology Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-11-16
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses a human body graft tester, which comprises a driving mechanism, a power transmission mechanism, a power bearing mechanism and an emptying mechanism, wherein one end of the power transmission mechanism is connected with the output end of the driving mechanism, and the other end is connected with the power bearing mechanism; the driving mechanism drives the power transmission mechanism to reciprocate along the axial direction of the output end; the power bearing mechanism is provided with a support accommodating cavity communicated with the power transmission mechanism, and the power transmission mechanism drives the support accommodating cavity to reciprocate along the radial direction of the output end of the driving mechanism; the stent containing cavity applies radial pressure or stretching force to the human body graft positioned in the stent containing cavity; the emptying mechanism comprises an emptying box body and a supporting plate, a rotating plate is arranged on the back face of the supporting plate, and the rotating plate is detachably mounted on the inner wall of the emptying box body and can rotate along the inner side wall of the emptying box body. The tester has the advantages of simple and ingenious structure, convenience in operation, capability of effectively discharging air bubbles, improvement of testing efficiency and reduction of input of product testing cost.

Description

Human body graft tester

Technical Field

The utility model relates to the technical field of medical equipment, specifically a human graft tester.

Background

The detection equipment on the market is usually specially customized according to the size of the human body graft to be tested, which limits the flexibility of the test and increases the cost input of the product test. In addition, because the human body environment is simulated, bubbles cannot exist in the tester, and when the tester is started, the bubbles in the system need to be discharged, and the prior art has a complex exhaust structure and is inconvenient to operate.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide a human body graft tester, which has a simple and ingenious structure and convenient operation, can effectively discharge air bubbles, improves the testing efficiency, reduces the investment of product testing cost, and is favorable for the popularization and the application of the human body graft tester in the technical field of medical instruments.

In order to realize the aim, the utility model adopts the following technical scheme that the human body graft tester comprises a driving mechanism, a power transmission mechanism, a power bearing mechanism and an emptying mechanism, wherein one end of the power transmission mechanism is connected with the output end of the driving mechanism, and the other end of the power transmission mechanism is connected with the power bearing mechanism; the driving mechanism drives the power transmission mechanism to reciprocate along the axial direction of the output end; the power bearing mechanism is provided with a support accommodating cavity communicated with the power transmission mechanism, and the power transmission mechanism drives the support accommodating cavity to reciprocate along the radial direction of the output end of the driving mechanism; the stent containing cavity applies radial pressure or stretching force to the human body graft positioned in the stent containing cavity; the emptying mechanism comprises an emptying box body with an opening at the upper end and a hollow structure and a supporting plate for supporting the driving mechanism, the power transmission mechanism and the power bearing mechanism, wherein a rotating plate is arranged on the back surface of the supporting plate, and the rotating plate is detachably mounted on the inner wall of the emptying box body and can rotate along the inner side wall of the emptying box body.

As a preferred scheme of the utility model, the inner side wall of the emptying box body is provided with a support piece; the rotating plate is supported on the support or rotates along the support.

As a preferred scheme of the utility model, the rotor plate is the arc setting, support piece is a plurality of, and is a plurality of support piece follows the arcwall face equidistance of rotor plate sets up.

As an optimized scheme of the utility model, the rotor plate through the pin demountable installation in the inner wall of evacuation box.

As a preferred scheme of the utility model, still include position control mechanism, actuating mechanism power bears mechanism position adjustable install in on the position control mechanism.

As the utility model discloses a preferred scheme, position control mechanism is equipped with a plurality of fixed orificess, actuating mechanism power bears the mechanism to pass through the fixed orifices can be dismantled the connection and be in on the position control mechanism.

As a preferred scheme of the utility model, the support accommodating cavity is of a hollow cylinder structure and is provided with a plurality of cavities; the human body graft is positioned in the stent accommodating cavity and is coaxially arranged with the stent accommodating cavity.

As a preferred scheme of the utility model, power bears the mechanism still include respectively with the support holds the chamber and reaches the first liquid storage pot of power transmission mechanism intercommunication, be equipped with liquid inlet and/or liquid outlet on the first liquid storage pot, liquid is followed first liquid storage pot the support holds the chamber circulation flow.

As a preferred scheme of the utility model, the power bearing mechanism further comprises a second liquid storage tank, and two ends of the support accommodating cavity are respectively communicated with accommodating cavity interfaces on two inner side surfaces of the first liquid storage tank and the second liquid storage tank; the driving mechanism is provided with two driving parts which are respectively matched with the first liquid storage tank and the second liquid storage tank, the two driving parts work synchronously, and the driving directions are opposite; the power transmission mechanism is provided with two elastic parts matched with the first liquid storage tank and the second liquid storage tank, and the two elastic parts are respectively communicated with the outer sides of the first liquid storage tank and the second liquid storage tank.

As a preferred embodiment of the present invention, the power carrying mechanism further comprises a balance shaft having two ends respectively connected to the inner side of the first liquid storage tank, the balance shaft comprises a first balance portion and a second balance portion which are sleeved with each other, and the first balance portion and the second balance portion are both hollow cylindrical structures; a plurality of first emptying ports and/or second emptying ports are arranged on the outer side surfaces and/or the circumferences of the first liquid storage tank and the second liquid storage tank and opposite to the accommodating cavity interface, and the first emptying ports and/or the second emptying ports are communicated with the accommodating cavity interface; the bottom of the first liquid storage tank and the bottom of the second liquid storage tank are provided with a saddle-shaped support frame, the inner side wall of the support frame is provided with a plurality of support wheels, and the bottom of the first liquid storage tank and the bottom of the second liquid storage tank are in contact with the support wheels.

Compared with the prior art, the utility model provides a beneficial effect is: the utility model provides a human graft tester, this tester simple structure convenient operation through setting up evacuation mechanism, and air in the effectual discharge tester that can be reasonable improves efficiency of software testing, reduces the input of product test cost, is favorable to the popularization and the application of above-mentioned human graft tester in medical instrument technical field.

Drawings

FIG. 1 is a schematic diagram of a human body graft tester according to an embodiment;

FIG. 2 is an exploded view of a portion of the structure of FIG. 1;

FIG. 3 is a structural cross-sectional view of a portion of the structure of FIG. 1;

FIG. 4 is a perspective view of a portion of the structure of FIG. 1;

fig. 5 is a schematic view of the mounting of the support bracket and the guide rail of fig. 1.

Reference numerals: 1. a drive mechanism; 2. a power transmission mechanism; 3. a power carrying mechanism; 4. a position adjustment mechanism; 5. an evacuation mechanism; 11. a motor fixing part; 12. a motor; 21. a fastener; 22. a bellows; 31. a first liquid storage tank; 31' and a second liquid storage tank; 32. a balance shaft; 33. a support frame; 35. a holder accommodating chamber; 311. an accommodation cavity interface; 312. a liquid inlet; 312', a liquid outlet; 313. a first evacuation port; 314. a second evacuation port; 315. a power connection hole; 331. a support wheel; 332. a support frame fixing hole; 41. a guide rail; 42. an adjusting plate; 411. a fixing hole; 51. a support plate; 52. a rotating plate; 53. Emptying the box body; 54. and a support member.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the field of interventional medical devices, the "distal end" is defined as the end that is distal from the operator during the procedure, and the "proximal end" is defined as the end that is proximal to the operator during the procedure. "axial" refers to a direction parallel to the line joining the centers of the distal and proximal ends of the medical device, and "radial" refers to a direction perpendicular to the axial direction.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, 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 thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; the connection can be mechanical connection, electrical connection or communication connection; either directly or indirectly through intervening media, either internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1: as shown in fig. 1 to 5, a human body graft tester comprises a driving mechanism 1, a power transmission mechanism 2, a power bearing mechanism 3 and a position adjusting mechanism 4, wherein one end of the power transmission mechanism 2 is connected with the output end of the driving mechanism 1, the other end of the power transmission mechanism 2 is communicated with the power bearing mechanism 3, and the output end of the driving mechanism 1 drives the power transmission mechanism 2 to reciprocate along the axial direction of the output end. The human body implant is positioned in the power bearing mechanism, and in order to simulate the working state of the human body implant in the human body environment, the power bearing mechanism 3 is filled with liquid with certain temperature and pressure.

Specifically, the power carrying mechanism 3 is provided with a stent accommodating chamber 35 communicating with the power transmission mechanism 2, the stent accommodating chamber 35 is preferably of a hollow cylindrical structure, and a human body graft is located inside the stent accommodating chamber 35, the human body graft being coaxial with the stent accommodating chamber 35. The support accommodating cavity is made of elastic materials, the axial positions of the two ends of the support accommodating cavity are fixed, the support accommodating cavity 35 does telescopic motion along the radial direction under the driving of the power transmission mechanism 2, and in the process that the support accommodating cavity 35 does telescopic motion, the tube wall of the support accommodating cavity and liquid in the tube wall apply radial pressure or tensile force to a human body graft positioned in the tube wall, so that fatigue detection is performed on the human body graft.

As shown in fig. 1, for a preferred embodiment of the present invention, the power carrying mechanism 3 includes 2 relatively disposed first and second liquid storage tanks 31 and 31 ' and a plurality of support accommodating cavities 35, and both ends of the support accommodating cavities 35 are respectively detachably mounted inside the first and second liquid storage tanks 31 and 31 ' and are communicated with the inside of the first and second liquid storage tanks 31 and 31 '. In this embodiment, the liquid storage tank 31 is a vertically arranged disc-shaped structure, the liquid storage tank 31 mainly serves as a liquid storage tank before entering the support accommodating cavity or after entering the support accommodating cavity, and both ends of the support accommodating cavity are fixed, as long as corresponding requirements can be met, and the specific shape thereof is not limited by the scope of the claims.

The first liquid storage tank 31 and the second liquid storage tank 31 'have similar functions and are used for storing liquid, and the first liquid storage tank 31 and the second liquid storage tank 31' are respectively provided with a liquid outlet and a liquid inlet, and the difference is that when the liquid storage tank is used specifically, each liquid storage tank only uses the liquid outlet or uses the liquid inlet, and the other liquid storage tank is correspondingly used as the liquid inlet or the liquid outlet, and forms a liquid flow channel together with the support accommodating cavity and an external liquid source to simulate blood circulation of a human body, and for the sake of simplicity, the subsequent part is only described by the first liquid storage tank 31.

Be equipped with a liquid inlet 312 and liquid outlet 312' on the first liquid storage pot 31, be equipped with on the inside wall of first liquid storage pot 31 and hold the chamber interface 311 that holds that chamber 35 quantity is the same with the support, hold the inside liquid cavity intercommunication of chamber interface 311 and first liquid storage pot 31, the support holds both ends fixed connection that chamber 35 holds on holding chamber interface 311, hold chamber 35 and the cohesion that holds chamber interface 311 in order to increase the support, also can increase a clamp lock or bundle silk fixedly in the outside that both are connected, the periphery that holds chamber interface 311 also can be equipped with a plurality of protruding pieces in order to increase frictional force between the two. The externally heated liquid enters the first liquid storage tank 31 from the liquid inlet 312, uniformly flows into each support accommodating cavity 35 from the accommodating cavity interface 311, flows back to the liquid storage tank outside the system from the liquid outlet of the second liquid storage tank 31', is heated and then flows back to the first liquid storage tank 31, and liquid circulation is formed.

The lower portion of the first liquid storage tank 31 is further provided with a hollow saddle-shaped support frame 33, the inner side wall of the support frame 33 is provided with a plurality of support wheels 331, as shown in fig. 3, the side wall of the support frame 33 is provided with a plurality of fixing holes 332, the support frame 33 is detachably connected with the first liquid storage tank 31 through the fixing holes 332, the bottom of the first liquid storage tank 31 is supported on the support wheels 331, the support frame 33 is used for improving the stability of the first liquid storage tank 31 and increasing the stress area at the bottom of the disc-shaped first liquid storage tank 31, the shape of the support frame 33 mainly aims at matching the first liquid storage tank 31, as long as the corresponding purpose can be achieved, the support frame 33 can also be replaced by other shapes.

The driving mechanism 1 comprises a motor 12 and a motor fixing part 11, the motor 12 is fixed on the position adjusting mechanism 4 through the motor fixing part 11, wherein the motor provides continuous axial reciprocating power for the human body graft tester, the motor can be a linear motor such as an ultrasonic motor and an electromagnetic motor, axial reciprocating driving force is provided for the human body graft tester, and the driving frequency is 1000-1500 bpm.

The power transmission mechanism 2 is used for transmitting the axial power of the driving mechanism 1 to the power bearing mechanism 3, and the power bearing mechanism 3 converts the axial power of the driving mechanism 1 into the radial deformation force of the support accommodating cavity 35. Two ends of the power transmission mechanism 2 are respectively communicated with the output end of the driving mechanism 1 and the outer side wall of the first liquid storage tank 31, in order to match the number of the first liquid storage tanks 31, preferably, the power transmission mechanism 2 also comprises 2 groups of elastic parts, each elastic part comprises a corrugated pipe 22 and a buckling part 21 wrapped on the outer side of the corrugated pipe 22, the outer side wall of the first liquid storage tank 31 is provided with a power connecting hole 315, the corrugated pipe 22 is of a hollow cylinder structure with one closed end, the closed side is fixedly connected with the output end of the driving mechanism 1, the end provided with an opening part is fixedly connected with the power connecting hole 315 and is communicated with the inside, when the output end of the motor 12 pushes the corrugated pipe 22, the corrugated pipe 22 is compressed axially, the volume of the corrugated pipe 22 is reduced, part of the liquid inside enters the power bearing mechanism 3 and extrudes the outer side wall of the support accommodating cavity 35, so as to expand the radial direction of the support accommodating cavity 35, the pressure of the inner side wall of the stent accommodating chamber 35 against the human body graft is reduced. On the contrary, when the output end of the motor 12 pulls back the corrugated tube 22, the volume of the corrugated tube 22 is increased, part of the liquid inside the power bearing mechanism 3 enters the corrugated tube 22, the stent accommodating cavity 35 is retracted radially, the pressure of the inner side wall of the stent accommodating cavity 35 on the human body graft is increased, and the one-time stretching of the human body graft is completed. The bellows may be replaced with an elastic gasket as long as it can be in sealed communication with the first reservoir 31 and provide an axial driving force to the liquid in the first reservoir 31.

In order to keep the left-right balance of the first liquid storage tank 31, a balance shaft 32 is further arranged between the two first liquid storage tanks 31, the balance shaft 32 comprises a first balance part and a second balance part, the first balance part and the second balance part are of hollow cylindrical structures, one end facing the first liquid storage tank 31 is fixedly connected with the first liquid storage tank 31, the other end far away from the first liquid storage tank 31 is sleeved with the first balance part, and the first balance part and the second balance part are detachably connected through a clamping hoop.

The purpose of the position adjustment mechanism 4 is, on the one hand, to keep the drive mechanism 1, the pressure transmission mechanism and the power carrying mechanism 3 relatively fixed during the testing of each group of human grafts, so as to prevent the deviation of the experimental results caused by the movement of some parts of the tester due to continuous vibration. On the other hand, when the life of the human body graft with different diameters and lengths is detected, the distance between the first liquid storage tank 31 and the second liquid storage tank 31' is adjusted according to the length of the support accommodating cavity so as to improve the universality of the human body graft tester.

The position adjusting mechanism 4 comprises two parallel guide rails 41, a plurality of fixing holes 411 are arranged on the guide rails 42, the driving mechanism 1 and the power bearing mechanism 3 can slide along the guide rails 42 and are detachably connected to the position adjusting mechanism 4 through the fixing holes, so that the positions of the driving mechanism 1 and the power bearing mechanism 3 are relatively fixed when fatigue testing is performed on a human implant.

The human body graft tester is further provided with an emptying mechanism 5, the emptying mechanism 5 comprises an emptying box body 53 with an opening at the upper end and a hollow structure and a supporting plate 51 for supporting the driving mechanism 1, the power transmission mechanism 2 and the power bearing mechanism 3, a rotating plate 52 is arranged on the back surface of the supporting plate 51, namely the back surface of the supporting plate 51, which is positioned on the supporting surface, and the rotating plate 52 is detachably mounted on the inner wall of the emptying box body 53 through pins and can rotate along the inner side wall of the emptying box body 53. In order to improve the stability of the normal operating state, the pins can also be replaced by screws or the like.

The inner side wall of the emptying box body 53 is provided with a support piece 54; the rotating plate 52 is supported on the supporting member 54 or rotates along the supporting member 54. The rotating plate 52 is arranged in an arc shape, the supporting pieces 54 are arranged in a plurality of numbers, and the supporting pieces 54 are arranged at equal intervals along the arc-shaped surface of the rotating plate 52, so that the stability of the rotating plate 52 is ensured. The support 54 may be provided as a support wheel structure to further ensure stability of the rotating plate 52.

In a normal working state, the top surfaces of the two support plates 51 support the position adjusting mechanism 4, and the driving mechanism 1, the pressure transmission mechanism 2 and the power bearing mechanism 3 which are positioned on the position adjusting mechanism 4. When the human body transplant needs to be replaced and air in the fatigue tester needs to be evacuated, the pin is pulled out, because two ends of the equipment are balanced, the tester still keeps a stable state under the condition of no external force, one end of the supporting plate 51 is pressed downwards, the supporting plate 51 and the structure positioned on the upper part of the supporting plate 51 rotate along the supporting piece 54 under the action of pressure, the unstressed end is lifted, if air bubbles exist in the tester, the air bubbles always float on the upper part of liquid because the density of the air bubbles is low, and the air bubbles are discharged from the first exhaust port 313 on the outer side wall of the first liquid storage tank 31 and/or the exhaust port 314 on the outer peripheral surface, and the air exhaust of the fatigue tester is completed.

Example 2: the present embodiment is distinguished from embodiment 1 in that: the driving mechanism 1 in this embodiment includes two sets of motors 12 and two sets of motor fixing portions 11, the two sets of motors 12 are respectively located at the outer sides of the first liquid storage tank 31 and the second liquid storage tank 31 ', preferably, the two motors 12 have the same model, the output ends of the two motors 12 are coaxial, and the two motors 12 synchronously apply acting forces with the same magnitude and opposite directions to the first liquid storage tank 31 and the second liquid storage tank 31', so as to ensure the stability of the human body graft tester in the testing process and ensure the testing effect.

In the human body graft tester in the embodiment, the tester is simple in structure and convenient to operate, air in the tester can be reasonably and effectively discharged by arranging the emptying mechanism 5, the testing efficiency is improved, the input of product testing cost is reduced, and the popularization and the application of the human body graft tester in the technical field of medical instruments are facilitated.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the reference numerals in the figures are used more here: 1. a drive mechanism; 2. a power transmission mechanism; 3. a power carrying mechanism; 4. a position adjustment mechanism; 5. an evacuation mechanism; 11. a motor fixing part; 12. a motor; 21. a fastener; 22. a bellows; 31. a first liquid storage tank; 31' and a second liquid storage tank; 32. a balance shaft; 33. a support frame; 35. a holder accommodating chamber; 311. an accommodation cavity interface; 312. a liquid inlet; 312', a liquid outlet; 313. a first evacuation port; 314. a second evacuation port; 315. a power connection hole; 331. a support wheel; 332. a support frame fixing hole; 41. a guide rail; 42. an adjusting plate; 411. a fixing hole; 51. a support plate; 52. a rotating plate; 53. emptying the box body; 54. support, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A human graft tester, comprising: the device comprises a driving mechanism (1), a power transmission mechanism (2), a power bearing mechanism (3) and an emptying mechanism (5), wherein one end of the power transmission mechanism (2) is connected with the output end of the driving mechanism (1), and the other end of the power transmission mechanism is connected with the power bearing mechanism (3); the driving mechanism (1) drives the power transmission mechanism (2) to reciprocate along the axial direction of the output end; the power bearing mechanism (3) is provided with a support accommodating cavity (35) communicated with the power transmission mechanism (2), and the power transmission mechanism (2) drives the support accommodating cavity (35) to reciprocate along the radial direction of the output end of the driving mechanism (1); the stent containing cavity (35) applies radial pressure or stretching force to the human body graft positioned in the stent containing cavity; the emptying mechanism (5) comprises an emptying box body (53) with an opening at the upper end and a supporting plate (51) used for supporting the driving mechanism (1), the power transmission mechanism (2) and the power bearing mechanism (3), a rotating plate (52) is arranged on the back surface of the supporting plate (51), and the rotating plate (52) is detachably mounted on the inner wall of the emptying box body (53) and can rotate along the inner side wall of the emptying box body (53).

2. The human graft tester of claim 1, wherein: a support piece (54) is arranged on the inner side wall of the emptying box body (53); the swivel plate (52) is supported on the support (54) or swivels along the support (54).

3. The human graft tester of claim 2, wherein: the rotating plate (52) is arranged in an arc shape, the supporting pieces (54) are multiple, and the supporting pieces (54) are arranged along the arc-shaped surface of the rotating plate (52) at equal intervals.

4. The human graft tester of claim 3, wherein: the rotating plate (52) is detachably mounted on the inner wall of the emptying box body (53) through a pin.

5. The human graft tester of claim 4, wherein: the power bearing mechanism is characterized by further comprising a position adjusting mechanism (4), wherein the driving mechanism (1) and the power bearing mechanism (3) are arranged on the position adjusting mechanism (4) in an adjustable mode.

6. The human graft tester of claim 5, wherein: the position adjusting mechanism (4) is provided with a plurality of fixing holes (411), and the driving mechanism (1) and the power bearing mechanism (3) are detachably connected to the position adjusting mechanism (4) through the fixing holes (411).

7. The human graft tester of claim 6, wherein: the support accommodating cavities (35) are of hollow cylindrical structures and are arranged in a plurality of numbers; the artificial bracket is positioned in the bracket accommodating cavity (35) and is coaxially arranged with the bracket accommodating cavity (35).

8. The human implant tester of claim 7, wherein: the power bearing mechanism (3) further comprises a first liquid storage tank (31) communicated with the support accommodating cavity (35) and the power transmission mechanism (2), a liquid inlet (312) and/or a liquid outlet (312') are/is arranged on the first liquid storage tank (31), and liquid flows along the first liquid storage tank (31) and the support accommodating cavity (35) in a circulating mode.

9. The human graft tester of claim 8, wherein: the power bearing mechanism (3) further comprises a second liquid storage tank (31 '), and two ends of the support accommodating cavity (35) are respectively communicated with accommodating cavity interfaces (311) on two inner side surfaces of the first liquid storage tank (31) and the second liquid storage tank (31'); the driving mechanism (1) is provided with two driving parts, the two driving parts are respectively matched with the first liquid storage tank (31) and the second liquid storage tank (31'), the two driving parts work synchronously, and the driving directions are opposite; the power transmission mechanism (2) is provided with two elastic parts matched with the first liquid storage tank (31) and the second liquid storage tank (31 '), and the two elastic parts are respectively communicated with the outer sides of the first liquid storage tank (31) and the second liquid storage tank (31').

10. The human graft tester of claim 9, wherein: the power bearing mechanism (3) further comprises a balance shaft (32) with two ends respectively connected to the inner side of the first liquid storage tank (31), the balance shaft (32) comprises a first balance part and a second balance part which are mutually sleeved, and the first balance part and the second balance part are both hollow cylindrical structures; a plurality of first emptying ports (313) and/or second emptying ports (314) are/is arranged on the outer side surfaces and/or the circumferences of the first liquid storage tank (31) and the second liquid storage tank (31') and at positions opposite to the accommodating cavity interface (311), and the first emptying ports (313) and/or the second emptying ports (314) are/is communicated with the accommodating cavity interface (311); the bottom of the first liquid storage tank (31) and the bottom of the second liquid storage tank (31 ') are provided with a saddle-shaped support frame (33), the inner side wall of the support frame (33) is provided with a plurality of support wheels (331), and the bottom of the first liquid storage tank (31) and the bottom of the second liquid storage tank (31') are arranged in contact with the support wheels (331).