Combined bone repair material freeze-drying mold convenient to demold

Abstract

The combined bone repair material freeze-drying mold convenient to demold comprises a mold positioning base plate, a containing groove is formed in the mold positioning base plate, a demolding adjusting rod is installed in the containing groove in the length direction in a penetrating mode, a bone repair material freeze-drying mold A is fixedly installed on the mold positioning base plate, and a sliding limiting groove is further formed in the inner wall of the containing groove; t-shaped sliding blocks are slidably installed in the containing groove and the sliding limiting groove at the same time, a bone repair material freeze-drying mold B is fixedly installed above the T-shaped sliding blocks, the bone repair material freeze-drying mold B is driven to generate linear displacement through rotation of the demolding adjusting rod to be far away from the fixed bone repair material freeze-drying mold A, and convenient demolding of the bone repair material and the mold is achieved; and the split type bone repair material freeze-drying mold also facilitates cleaning of the bottom of the mold, meanwhile, threaded locking is achieved through a semicircular butt joint block A, a semicircular butt joint block B and a locking nut, the tightness of the two bone repair material freeze-drying molds is kept, and the forming quality of the bone repair material is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bone repair material freeze-drying molds, in particular to a combined bone repair material freeze-drying mold that is easy to demould. Background Art

[0002] Combined bone repair material is a composite biomaterial prepared with natural polymer materials as carriers. It has the characteristics of high plasticity, firmness and good adhesion. The unique molecular structure and physical and chemical properties of polymer materials show a variety of excellent physiological functions in the body, including regulating the permeability of blood vessels, regulating protein, water and electrolyte diffusion, promoting cell differentiation, and promoting wound healing. Combined bone repair materials are mainly used as filling materials for tooth extraction sockets and as carrier materials for implant dentures.

[0003] The existing combined bone repair materials use an integrated freeze-drying mold in the freeze-drying process. The main step is to fill the mixed bone particle raw materials into the mold for freeze-drying. After the freeze-drying is completed, the product is taken out of the freeze-drying mold with tools. However, since the stainless steel mold has a certain degree of roughness during the manufacturing process and the natural polymer materials added in the combined bone repair materials have a certain adhesion to the stainless steel material, the existing freeze-drying mold is relatively inconvenient to demold.

[0004] Therefore, in view of the shortcomings of the prior art, it is necessary to provide a freeze-drying mold for a combined bone repair material that is easy to demould to solve the shortcomings of the prior art. Utility Model Content

[0005] The purpose of the utility model is to avoid the shortcomings of the prior art and provide a combined bone repair material freeze-drying mold that is easy to demold. The combined bone repair material freeze-drying mold that is easy to demold drives the bone repair material freeze-drying mold B to produce a linear displacement through the rotation of the demolding adjustment rod, away from the fixed bone repair material freeze-drying mold A, thereby realizing convenient demolding of the bone repair material and the mold. The split bone repair material freeze-drying mold is also convenient for cleaning the bottom of the mold. At the same time, thread locking is achieved through the semicircular docking block A, the semicircular docking block B and the locking nut, thereby maintaining the tightness of the two bone repair material freeze-drying molds and improving the molding quality of the bone repair material.

[0006] The above-mentioned purpose of the utility model is achieved through the following technical means.

[0007] Provided is a combined bone repair material freeze-drying mold that is easy to demould, comprising a mold positioning chassis, a receiving groove is provided on the mold positioning chassis, one end of the receiving groove is terminated by the mold positioning chassis, a path limiting block is fixedly installed on the mold positioning chassis at the other end of the receiving groove, a rotating bearing is fixedly installed on the path limiting block, a demoulding adjustment rod is installed through the interior of the receiving groove along the length direction, one end of the demoulding adjustment rod passes through the rotating bearing and extends to the outside of the mold positioning chassis, and the other end is rotatably installed at the end of the receiving groove away from the path limiting block;

[0008] A bone repair material freeze-drying mold A is fixedly installed on the mold positioning chassis, a sliding limit groove is also provided on the inner wall of the accommodating groove, a T-shaped slider is slidably installed inside the accommodating groove and the sliding limit groove, a bone repair material freeze-drying mold B is fixedly installed above the T-shaped slider, the bone repair material freeze-drying mold A and the bone repair material freeze-drying mold B are movably matched, an internal threaded hole is provided on the T-shaped slider, and the demoulding adjustment rod spirally passes through the internal threaded hole.

[0009] Specifically, semicircular docking blocks A are fixedly installed on the side walls of the bone repair material freeze-drying mold A, and semicircular docking blocks B are fixedly installed on the side walls of the bone repair material freeze-drying mold B. The corresponding semicircular docking blocks A and semicircular docking blocks B are both provided with locking threads on the outside, and locking nuts are installed on the outside of the semicircular docking blocks A and semicircular docking blocks B.

[0010] Preferably, the length of the containing groove is D1, the width of the bone repair material freeze-drying mold B is D2, and D1 and D2 satisfy D1>2D2.

[0011] Specifically, an adjustment block is fixedly mounted on one end of the demoulding adjustment rod away from the mold positioning chassis.

[0012] Furthermore, a plurality of material troughs A are provided on the semicircular docking block A, and a plurality of material troughs B are provided on the semicircular docking block B, and the material troughs A and the material troughs B are movably matched.

[0013] The utility model drives the bone repair material freeze-drying mold B to produce a linear displacement by rotating the demoulding adjustment rod, away from the fixed bone repair material freeze-drying mold A, so as to realize convenient demoulding of the bone repair material and the mold; and the split bone repair material freeze-drying mold is also convenient for cleaning the bottom of the mold; at the same time, thread locking is realized by the semicircular docking block A, the semicircular docking block B and the locking nut, so as to maintain the tightness of the two bone repair material freeze-drying molds and improve the molding quality of the bone repair material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0015] Figure 1The utility model is a three-dimensional structural schematic diagram of a freeze-drying mold for a combined bone repair material that is easy to demould when demoulding.

[0016] Figure 2 The utility model is a three-dimensional structural schematic diagram of a combined bone repair material freeze-drying mold that is easy to demould when the mold is closed.

[0017] Figure 3 The utility model is a schematic diagram of a partial three-dimensional structure of a mold positioning chassis and a bone repair material freeze-drying mold A installed in a combined bone repair material freeze-drying mold that is easy to demould.

[0018] Figure 4 The utility model is a three-dimensional structural schematic diagram of the installation of a bone repair material freeze-drying mold B and a T-shaped slider of a combined bone repair material freeze-drying mold that is easy to demould.

[0019] from Figures 1 to 4 Including:

[0020] 1. Mould positioning chassis;

[0021] 2. Receiving tank;

[0022] 3. Path limit block;

[0023] 4. Rotate the bearing;

[0024] 5. Demoulding adjustment rod;

[0025] 6. Bone repair material freeze-drying mold A;

[0026] 7. Sliding limit groove;

[0027] 8. T-type slider;

[0028] 9. Bone repair material freeze-drying mold B;

[0029] 10. Internal threaded hole;

[0030] 11. Semicircular docking block A;

[0031] 12. Semicircular docking block B;

[0032] 13. Locking thread;

[0033] 14. Locking nut;

[0034] 15. Adjustment block;

[0035] 16. Feed trough A;

[0036] 17. Feed trough B. DETAILED DESCRIPTION

[0037] The utility model is further described in conjunction with the following embodiments.

[0038] Example 1.

[0039] like Figure 1-4 As shown, a combined bone repair material freeze-drying mold that is easy to demold, includes a mold positioning chassis 1, a receiving groove 2 is opened on the mold positioning chassis 1, one end of the receiving groove 2 uses the mold positioning chassis 1 as a terminal, and the other end of the receiving groove 2 is fixedly installed with a path limit block 3 on the mold positioning chassis 1, and a rotating bearing 4 is fixedly installed on the path limit block 3. A demolding adjustment rod 5 is installed through the interior of the receiving groove 2 along the length direction, one end of the demolding adjustment rod 5 passes through the rotating bearing 4 and extends to the outside of the mold positioning chassis 1, and the other end is rotatably installed at the end of the receiving groove 2 away from the path limit block 3.

[0040] A bone repair material freeze-drying mold A 6 is fixedly installed on the mold positioning chassis 1, and a sliding limit groove 7 is also provided on the inner wall of the accommodating groove 2. T-shaped sliders 8 are slidably installed inside the accommodating groove 2 and the sliding limit groove 7. A bone repair material freeze-drying mold B 9 is fixedly installed above the T-shaped slider 8. The bone repair material freeze-drying mold A 6 and the bone repair material freeze-drying mold B 9 are movably matched. An internal threaded hole 10 is provided on the T-shaped slider 8, and the demoulding adjustment rod 5 spirally passes through the internal threaded hole 10.

[0041] In the present application, the mold for forming the bone repair material, during use, rotates the demoulding adjustment rod 5 to drive the T-shaped slider 8 that is spirally matched with it to move, thereby driving the bone repair material freeze-drying mold B 9 to approach or move away from the bone repair material freeze-drying mold A 6, thereby realizing the mold closing and demoulding of the two molds. The T-shaped slider 8 cooperates with the sliding limit groove 7 and the receiving groove 2 at the same time to ensure the stability of the movement path of the bone repair material freeze-drying mold B 9. The path limit block 3 and the rotating bearing 4 also serve to position the demoulding adjustment rod 5 in rotation. When demoulding, the demoulding adjustment rod 5 can be rotated to facilitate the molding and demoulding of the bone repair material.

[0042] Semicircular docking blocks A11 are fixedly installed on the side walls of the bone repair material freeze-drying mold A6, and semicircular docking blocks B12 are fixedly installed on the side walls of the bone repair material freeze-drying mold B9. The corresponding semicircular docking blocks A11 and B12 are both provided with locking threads 13 on the outside, and locking nuts 14 are installed on the outside of the semicircular docking blocks A11 and B12 for locking.

[0043] When the bone repair material freeze-drying mold B 9 is docked with the bone repair material freeze-drying mold A 6, the semicircular docking blocks A11 and B12 on both sides are also docked to form a split cylinder, and the locking thread 13 is driven from the outside, and the locking nut 14 is installed to lock the bone repair material freeze-drying mold B 9 and the bone repair material freeze-drying mold A 6 to maintain the tightness of the two molds.

[0044] The length of the containing groove 2 is D1, the width of the bone repair material freeze-drying mold B 9 is D2, and D1 and D2 satisfy D1>2D2.

[0045] The receiving groove 2 allows the bone repair material freeze-drying mold B 9 to be completely separated from the formed bone repair material, and also facilitates the removal of the bone repair material.

[0046] An adjusting block 15 is fixedly mounted on one end of the demoulding adjusting rod 5 away from the mold positioning chassis 1 .

[0047] The adjusting block 15 can facilitate the rotation of the demoulding adjusting rod 5 .

[0048] A plurality of material grooves A16 are provided on the semicircular docking block A11, and a plurality of material grooves B17 are provided on the semicircular docking block B12. The material grooves A16 and B17 are movably matched.

[0049] The material trough A16 and the material trough B17 are matched to be loaded with bone repair materials for freeze-drying.

[0050] The utility model drives the bone repair material freeze-drying mold B 9 to produce a linear displacement through the rotation of the demoulding adjustment rod 5, away from the fixed bone repair material freeze-drying mold A 6, so as to realize the convenient demoulding of the bone repair material and the mold, and the split bone repair material freeze-drying mold is also convenient for cleaning the bottom of the mold. At the same time, the semicircular docking block A11, the semicircular docking block B12 and the locking nut 14 are used to realize thread locking, so as to maintain the tightness of the two bone repair material freeze-drying molds and improve the molding quality of the bone repair material.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A freeze-drying mold for a combined bone repair material that is easy to demould, characterized in that: It comprises a mold positioning chassis, wherein a receiving groove is provided on the mold positioning chassis, one end of the receiving groove is terminated by the mold positioning chassis, a path limiting block is fixedly installed on the mold positioning chassis at the other end of the receiving groove, a rotating bearing is fixedly installed on the path limiting block, a demoulding adjustment rod is installed through the interior of the receiving groove along the length direction, one end of the demoulding adjustment rod passes through the rotating bearing and extends to the outside of the mold positioning chassis, and the other end is rotatably installed at one end of the receiving groove away from the path limiting block; A bone repair material freeze-drying mold A is fixedly installed on the mold positioning chassis, a sliding limit groove is also provided on the inner wall of the accommodating groove, and T-shaped sliders are slidably installed inside the accommodating groove and the sliding limit groove at the same time. A bone repair material freeze-drying mold B is fixedly installed above the T-shaped slider, the bone repair material freeze-drying mold A and the bone repair material freeze-drying mold B are movably matched, an internal threaded hole is provided on the T-shaped slider, and the demoulding adjustment rod spirally passes through the internal threaded hole.

2. The freeze-drying mold for combined bone repair materials that is easy to demould according to claim 1, characterized in that: Semicircular docking blocks A are fixedly installed on the side walls of both sides of the bone repair material freeze-drying mold A, and semicircular docking blocks B are fixedly installed on the side walls of both sides of the bone repair material freeze-drying mold B. Correspondingly, the outer parts of the semicircular docking blocks A and the semicircular docking blocks B are both provided with locking threads, and the outer locking parts of the semicircular docking blocks A and the semicircular docking blocks B are matched with locking nuts.

3. The freeze-drying mold for combined bone repair materials that is easy to demould according to claim 2, characterized in that: The length of the containing groove is D1, the width of the bone repair material freeze-drying mold B is D2, and D1 and D2 satisfy D1>2D2.

4. The freeze-drying mold for combined bone repair materials that is easy to demould according to claim 3, characterized in that: An adjusting block is fixedly mounted on one end of the demoulding adjusting rod away from the mold positioning chassis.

5. The freeze-drying mold for combined bone repair materials that is easy to demould according to claim 4, characterized in that: The semicircular docking block A is provided with a plurality of material troughs A, and the semicircular docking block B is provided with a plurality of material troughs B, and the material troughs A and the material troughs B are movably matched.

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