Biological material fixing assembly

Abstract

The utility model provides a biological material fixing assembly. The biological material fixing assembly comprises a sleeve, a fixing plate and an adjusting assembly, the sleeve is of a hollow structure and internally provided with a fixing cavity. At least one part of the adjusting assembly is sleeved with the fixing cavity, and the adjusting assembly seals the fixing cavity and adjusts the depth of the fixing cavity. One end of a to-be-tested biological material with an irregular shape, such as humerus, is placed in the fixing cavity, and the to-be-tested biological material is stably fixed without being damaged by pouring the thermocuring denture resin curing medium into the fixing cavity.

Description

TECHNICAL FIELD

[0001] The utility model relates to biological material mechanics performance test technical field, concretely relates to a biological material fixed subassembly. BACKGROUND

[0002] Biological material mechanics test is mainly used for the biomechanics performance test of various biological materials, including the mechanical property test and mechanical identification such as stretching, compression, bending, torsion of artificial blood vessels, soft tissues, bone and other materials, biological material mechanics testing machine as the necessary test equipment, usually will configure the fixture for fixing the measured tissue, the biological material mechanics testing machine of inventor uses, it includes base, sliding column, lifting slide, the fixed clamp of installation on the base and the stretching clamp of installation on the lifting slide, the fixed clamp and the stretching clamp respectively include two clamping plates that can be relatively close or far away, and the both ends of biological material are clamped and fixed on the fixed clamp and the stretching clamp through the clamping plate, and the lifting slide drives the vertical movement of the stretching clamp, so that the biomechanics performance test is carried out to the biological material fixed between the fixed clamp and the stretching clamp.

[0003] The physiological structure of the infraspinatus muscle of the infraspinatus muscle-humerus complex of New Zealand rabbits is perpendicular to the humerus, and when the mechanical properties of the infraspinatus muscle-humerus complex are tested, the infraspinatus muscle and the humerus connecting part need to be pulled off under the premise of maintaining the vertical physiological structure thereof; the clamping plates of the fixed clamp and the stretching clamp are designed for some regular-shaped clamping objects, and for some irregular-shaped clamping objects (such as the humerus in the above-mentioned infraspinatus muscle-humerus complex of New Zealand rabbits), if the humerus is directly clamped and fixed by the clamping plate, when the clamping and fixing is too loose, the horizontally fixed humerus is prone to slipping and twisting, and when the clamping and fixing is too tight, the humerus is prone to be damaged. SUMMARY

[0004] The utility model discloses a kind of customized fixed clamp assemblies suitable for infraspinatus muscle-humerus complex, which can be fixed on biomechanics testing machine, the biological material fixed clamp assembly can firmly and stably fix humerus without damaging humerus, and can also maintain the physiological structure of the infraspinatus muscle-humerus complex in vertical state to perform mechanical property test.

[0005] The utility model discloses the following technical scheme: a biological material fixed subassembly, including sleeve, fixed plate and adjusting assembly;The sleeve is hollow structure, and its inside is fixed cavity;The fixed plate is fixedly installed on the outside of one end of sleeve, for being fixedly connected with biological material mechanics testing machine;

[0006] The adjusting assembly is in sliding connection with the other end of the sleeve, at least a part of the adjusting assembly is sleeved into the fixing cavity, the adjusting assembly is used for closing the fixing cavity, and the depth of the fixing cavity is adjusted; one end of the biological material to be measured is placed into the fixing cavity, and a solidifying medium for fixing the biological material to be measured is filled between the sleeve and the biological material to be measured.

[0007] Further, the adjusting assembly comprises a base, a sliding column and a positioning member, the sliding column is fixedly installed at one end of the base, the sliding column is matched and sleeved into the fixing cavity to close the fixing cavity, and the depth of the fixing cavity is adjusted by the length of the sliding column entering the fixing cavity, and the positioning member is connected and installed on the base and is used for fixing the relative position of the sliding column and the sleeve after the target length of the sliding column entering the fixing cavity.

[0008] Further, the positioning member comprises a connecting plate and a positioning screw, one end of the connecting plate is fixedly connected with the base, the connecting plate is arranged on the same side and parallel to the sliding column, and a threaded hole is formed in the end of the connecting plate, away from the base, the positioning screw is threadedly connected in the threaded hole.

[0009] Further, the fixing plate is provided with anti-skid lines.

[0010] Further, the solidifying medium is a heat-curing type base resin.

[0011] The biological material fixing assembly in the utility model can be fixedly connected on the fixing clamp of the biological material mechanical testing machine, the irregularly shaped clamping objects such as humerus can be placed into the fixing cavity, the heat-curing type base resin solidifying medium is poured into the fixing cavity to realize the stable fixation of the biological material to be measured and will not damage the biological material to be measured, meanwhile, the depth of the fixing cavity can be adjusted through the adjusting assembly to adapt to the length of different biological materials to be measured. BRIEF DESCRIPTION OF DRAWINGS

[0012] ATTACHED Figure 1 It is the structure schematic view of the biological material fixing assembly in the utility model.

[0013] ATTACHED Figure 2 It is the structure schematic view of the adjusting assembly 3 in the utility model Figure One .

[0014] ATTACHED Figure 3 It is the structure schematic view of the adjusting assembly 3 in the utility model Figure Two .

[0015] The reference signs are explained as follows: sleeve 1, fixing cavity 11, fixing plate 2, anti-skid lines 21, adjusting assembly 3, base 31, sliding column 32, connecting plate 33, threaded hole 34, positioning screw 35. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor, and the invention content will be further described below in combination with the drawings.

[0017] The infraspinatus muscle of the infraspinatus muscle-humerus complex of New Zealand rabbits is perpendicular to the humerus, and when the mechanical property test of the infraspinatus muscle-humerus complex is carried out, the connection between the infraspinatus muscle and the humerus needs to be pulled off under the premise of maintaining the perpendicular physiological structure of the infraspinatus muscle-humerus complex, and the present patent embodiment is described by taking the infraspinatus muscle-humerus complex of New Zealand rabbits as an example.

[0018] The biological material mechanical testing machine used by the inventor comprises a base, a sliding column, a lifting sliding machine, a fixed clamp installed on the base and a stretching clamp installed on the lifting sliding machine, the fixed clamp and the stretching clamp respectively comprise two clamping plates that can be relatively close or far away from each other, two ends of the biological material are clamped and fixed on the fixed clamp and the stretching clamp through the clamping plates, and the lifting sliding machine drives the stretching clamp to move vertically, so as to perform a biomechanical property test on the biological material fixed between the fixed clamp and the stretching clamp.

[0019] Embodiment 1

[0020] Referring to the drawings in the specification Figure 1 A biological material fixing assembly, comprising a sleeve 1, a fixed plate 2 and an adjusting assembly 3, the sleeve 1 is a hollow structure, and the inside is a fixed cavity 11, the fixed plate 2 is fixedly installed on the outside of one end of the sleeve 1, the fixed plate 2 is clamped and fixed between the two clamping plates of the fixed clamp of the biological material mechanical testing machine, so as to realize the fixed connection between the biological material fixing assembly and the biological material mechanical testing machine, and the fixed plate 2 is provided with anti-skid lines 21, so as to increase the friction between the fixed plate 2 and the clamping plates and make the fixing more stable.

[0021] Referring to the drawings in the specification Figure 2 , 3 The adjusting assembly 3 comprises a base 31, a sliding column 32, a connecting plate 33 and a positioning screw 35, the sliding column 32 is cylindrical and fixedly installed at one end of the base 31, one end of the connecting plate 33 is fixedly connected with the base 31, the connecting plate 33 and the sliding column 32 are parallel and located on the same side of the base 31, the length of the connecting plate 33 is equal to the length of the sliding column 32, a threaded hole 34 is formed in one end of the connecting plate 33 away from the base 31, and the positioning screw 35 is threadedly connected in the threaded hole 34.

[0022] The sliding column 32 is matched into the fixing cavity 11 from the end of the sleeve 1 without the fixed plate 2, the fixing cavity 11 is closed, at this time, the connecting plate 33 is outside the sleeve 1, the length of the sliding column 32 in the fixing cavity 11 can adjust the depth of the fixing cavity 11, the bottom end of the positioning screw 35 is in contact with the outer wall of the sleeve 1 by screwing the positioning screw 35, the relative position of the sleeve 1 and the adjusting assembly 3 (specifically the sliding column 32 and the sleeve 1) is fixed.

[0023] The use method of the biological material fixing assembly in the embodiment is as follows: the positioning screw 35 is unscrewed, the sliding column 32 can slide in the fixing cavity 11 or the sliding column 32 is withdrawn from the fixing cavity 11, the humerus of the infraspinatus-humerus complex is placed into the fixing cavity 11, the connecting part of the infraspinatus and the humerus is outside the port of the sleeve 1, the infraspinatus does not contact the end face of the sleeve 1, the position of the sliding column 32 in the fixing cavity 11 is adjusted, the end face of the sliding column 32 is in contact with the humerus, the position of the adjusting assembly 3 (specifically the sliding column 32) is fixed by screwing the positioning screw 35, the length of the humerus in the fixing cavity 11 is limited, the connecting part of the infraspinatus and the humerus is always outside the port of the sleeve 1, the sleeve 1 is straightened through the base 31, the opening end of the sleeve 1 faces upward, the heat-cured base resin (raw material is bone cement or denture powder) for fixing the biological material to be tested is filled between the sleeve 1 and the biological material to be tested, specifically, the heat-cured base resin (raw material is bone cement or denture powder) is poured into the fixing cavity 11, so as to fill the heat-cured base resin (raw material is bone cement or denture powder) between the sleeve 1 and the biological material to be tested, the humerus is only supported to be straightened due to the end face of the sliding column 32 abutting against the bottom end of the humerus during pouring, the humerus is fixed by the sleeve 1 after the heat-cured base resin (raw material is bone cement or denture powder) is solidified, and the infraspinatus is outside the sleeve 1, so the physiological structure of the vertical state of the infraspinatus and the humerus is not affected, the connecting part of the infraspinatus and the humerus is pulled off under the premise that the vertical physiological structure of the infraspinatus-humerus complex is maintained during the mechanical property test of the infraspinatus-humerus complex.

[0024] It should be noted that the pouring method of the heat-cured base resin (raw material is bone cement or denture powder) is as follows: a certain proportion of bone cement or denture powder is fully stirred and mixed with water to form a paste-like solidification medium, the sleeve 1 is straightened through the base 31, the opening end of the sleeve 1 faces upward, the humerus is inserted into the sleeve 1, the bottom end of the humerus is abutted by the end face of the sliding column 32, the humerus is kept straightened, the above paste-like solidification medium can be poured into the opening of the sleeve 1, the humerus is fixed by the sleeve 1 after the heat-cured base resin is solidified.

[0025] It is clear that modifications and / or additions of parts to the above described biological material fixation assembly and corresponding method can be made without departing from the field and scope of the present application.

[0026] It is also clear that, although the present application has been described with respect to a specific biological material fixation assembly, a person skilled in the art will be able to obtain many other equivalent forms of biological material fixation assembly and corresponding method having the features as claimed in the claims, and therefore all within the scope of protection defined by the claims.

Claims

1. A biomaterial immobilization component, characterized in that: It includes a sleeve (1), a fixing plate (2) and an adjustment assembly (3); the sleeve (1) is a hollow structure with a fixed cavity (11) inside; the fixing plate (2) is fixedly installed on the outside of one end of the sleeve (1) for fixed connection with the biomaterial mechanical testing machine; The adjustment component (3) is slidably connected to the other end of the sleeve (1), and at least a portion of the adjustment component (3) is fitted into the fixed cavity (11). The adjustment component (3) is used to close the fixed cavity (11) and adjust the depth of the fixed cavity (11). One end of the biomaterial to be tested is placed into the fixed cavity (11), and a solidification medium for fixing the biomaterial to be tested is filled between the sleeve (1) and the biomaterial to be tested.

2. The biomaterial immobilization assembly according to claim 1, characterized in that: The adjustment component (3) includes a base (31), a sliding column (32), and a positioning element. The sliding column (32) is fixedly installed at one end of the base (31). The sliding column (32) is fitted into the fixed cavity (11) to close the fixed cavity (11). The depth of the fixed cavity (11) is adjusted by the length of the sliding column (32) entering the fixed cavity (11). The positioning element is connected and installed on the base (31). It is used to fix the relative position of the sliding column (32) and the sleeve (1) after the sliding column (32) enters the fixed cavity (11) to the target length.

3. The biomaterial immobilization assembly according to claim 2, characterized in that: The positioning component includes a connecting plate (33) and a positioning screw (35). One end of the connecting plate (33) is fixedly connected to the base (31). The connecting plate (33) and the sliding column (32) are arranged on the same side and parallel to each other. A threaded hole (34) is provided on the end of the connecting plate (33) away from the base (31). The positioning screw (35) is threaded into the threaded hole (34).

4. The biomaterial immobilization assembly according to claim 1, characterized in that: The fixing plate (2) is provided with anti-slip texture (21).

5. The biomaterial immobilization assembly according to claim 1, characterized in that: The curing medium is a thermosetting base resin.

Images