Implanter for hydroxyl phosphorus ash biological ceramic
By designing an implanter with a hydroxyapatite bone junction base layer with an osteoinducible growth component and a porous structure, the problems of existing implants being difficult to fix at the femoral head junction and difficulty in regeneration of bone fault are solved, and the speed and effect of bone junction recovery are significantly improved.
Patent Information
- Application Number
- CN202421221571.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing hydroxyapata bioceramic implants are difficult to fix at the femoral head junction, and it is difficult to regenerate between bone faults, resulting in average bone junction recovery effect.
An implanter is designed including a bone connection assembly, an osteoinducible growth assembly, a positioning pin and a bone nail hole. The bone junction assembly is equipped with an osteoinducing growth assembly and a positioning pin. A hydroxyapatite bone junction substrate with a porous structure is made through 3D printing technology to promote the attachment and growth of bone cells.
Through the porous structure of the bone junction base layer, the attachment and growth of bone cells is improved, the regeneration and connection of broken bones is promoted, and the recovery speed and effect of bone junction is significantly improved.
Smart Images
Figure CN222640680U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydroxyapatite bioceramic implanters, and in particular relates to a hydroxyapatite bioceramic implanter. Background Art
[0002] Hydroxyapatite bioceramic is a material that is compatible with human bones, so it is often used to make implants. It has a similar basic composition to human bones and may be naturally absorbed by the human body or used as a substitute for bones. Hydroxyapatite bioceramic implants have a wide range of applications in orthopedic surgery, such as replacing or repairing bone defects, femoral head necrosis, etc. However, in some cases, existing hydroxyapatite bioceramic implants still have some problems. For example, fixation at the femoral head connection is difficult, and regrowth between bone fractures is difficult, which may affect the implant recovery effect. The hydroxyapatite implant may not provide enough space and support for the new bone tissue, resulting in a general bone connection recovery effect. Utility Model Content
[0003] In order to overcome the problem that the existing hydroxyapatite bioceramic implant is difficult to fix on the femoral head connection and the regrowth between bone fractures is difficult, resulting in a general bone connection recovery effect.
[0004] The technical solution of the utility model is: a hydroxyapatite bioceramic implant, comprising a bone connection component, a bone induction growth component, a positioning pin, and a bone screw hole; the bone connection component is provided with a bone induction growth component; the bone connection component is evenly provided with positioning pins, and four positioning pins are provided.
[0005] Preferably, the end face of the broken bone layer is inserted and positioned through the positioning pin of the bone connection sleeve, and then the bone connection assembly is fixed by passing the bone screw through the bone screw hole. At this time, the hydroxyapatite bone connection base between the two bones is used to connect the two ends. Since the hydroxyapatite bone connection base in the 3D printed whole has a large number of structurally stable pores, it is conducive to the attachment and growth, proliferation and differentiation of bone cells, and is conducive to the growth, connection and recovery speed of broken bones. The 3D printing equipment can control the position and geometry of the micropores of bioceramic artificial bone, and the compressive strength and pore size requirements of the product meet the requirements of the implant. The three-dimensional porous structure promotes the adhesion and proliferation of osteoblasts, allows tissue fluid, cells, and growth factors to enter the material, and is conducive to the growth of new bone tissue. The product has uniform pore size and is interconnected, which solves the problem that the existing hydroxyapatite bioceramic implant is difficult to fix on the femoral head connection and difficult to grow again between bone fractures, resulting in a general bone connection recovery effect.
[0006] Preferably, bone screw holes are evenly arranged between the positioning pins, and there are four bone screw holes; the overall structure is completed by printing in one piece with a 3D printer and then sintering.
[0007] Preferably, the bone connection component includes a bone connection sleeve and bone tissue attachment holes; the bone tissue attachment holes are evenly distributed on the side of the bone connection sleeve, and the bone tissue attachment holes and the bone connection sleeve are integrally printed and formed.
[0008] Preferably, the bone induction growth component includes a hydroxyapatite bone connection base, a diamond-shaped protective mesh, and a porous tough ring; the hydroxyapatite bone connection base and the bone connection sleeve are integrally printed and formed, and the end face of the broken bone layer is inserted and positioned through the positioning pin of the bone connection sleeve, and then the bone connection component is fixed by passing the bone screw through the bone screw hole. At this time, the hydroxyapatite bone connection base between the two bones is used to connect the two ends. Since the hydroxyapatite bone connection base formed by 3D printing has a large number of structurally stable pores, it is beneficial to the attachment, growth, proliferation and differentiation of bone cells, and is beneficial to the growth connection recovery speed of the broken bone.
[0009] Preferably, both upper and lower ends of the hydroxyapatite bone connection base layer are provided with diamond-shaped protective meshes, and the diamond-shaped protective meshes are integrally printed and formed with the hydroxyapatite bone connection base layer.
[0010] Preferably, a porous tough ring is provided inside the hydroxyapatite bone connection base layer, and the porous tough ring and the hydroxyapatite bone connection base layer are integrally printed and formed.
[0011] Preferably, the porous tough ring is composed of a tubular hexagonal hydroxyapatite printing structure. The structural morphology of the porous tough ring is conducive to supporting the outer edge structure of the hydroxyapatite bone connection base layer and preventing the outer edge of the hydroxyapatite bone connection base layer from being deformed by stress. The hydroxyapatite ceramic scaffold made of the hydroxyapatite material after high-temperature degreasing and sintering has no biotoxicity, and the survival rate of cells adhered to the surface of the scaffold is relatively high. The scaffold has certain biological activity and bone inductivity, and can promote the proliferation of pre-osteoblasts and the differentiation of osteoblasts.
[0012] Beneficial effects of the utility model:
[0013] 1. The existing hydroxyapatite bioceramic implant has the problem of general bone connection recovery effect because it is difficult to fix it on the femoral head connection and it is difficult to regenerate between the bone fractures; the end face of the broken bone layer is inserted and positioned through the positioning pin of the bone connection sleeve, and then the bone connection component is fixed by passing the bone screw through the bone screw hole. At this time, the hydroxyapatite bone connection base between the two bones is used to connect the two ends. Since the hydroxyapatite bone connection base in the 3D printed whole has a large number of structurally stable pores, it is conducive to the attachment and growth, proliferation and differentiation of bone cells, and is conducive to the growth and connection recovery speed of broken bones. The 3D printing equipment can control the position and geometry of the micropores of bioceramic artificial bones, and the compressive strength and pore size requirements of the parts meet the requirements of implants. The three-dimensional porous structure promotes the adhesion and proliferation of osteoblasts, allows tissue fluid, cells, and growth factors to enter the material, which is conducive to the growth of new bone tissue. The product pore size is uniform and interconnected; it solves the problem of general bone connection recovery effect caused by the existing hydroxyapatite bioceramic implant because it is difficult to fix it on the femoral head connection and it is difficult to regenerate between the bone fractures;
[0014] 2. Through the setting of the porous tough ring, the structural morphology of the porous tough ring is conducive to supporting the outer edge structure of the hydroxyapatite bone connection base, preventing the outer edge of the hydroxyapatite bone connection base from being deformed by force. The hydroxyapatite ceramic scaffold of the hydroxyapatite material after high-temperature degreasing and sintering has no biological toxicity, and the survival rate of cells adhered to the surface of the scaffold is relatively high. The scaffold has certain biological activity and bone inductivity, which can promote the proliferation of pre-osteoblasts and osteoblast differentiation. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 What is shown is a schematic diagram of the overall three-dimensional structure of a hydroxyapatite bioceramic implant of the utility model;
[0016] Figure 2 What is shown is a schematic diagram of the overall cross-sectional stereoscopic structure of a hydroxyapatite bioceramic implant of the utility model;
[0017] Figure 3 What is shown is a schematic diagram of a three-dimensional structure of a porous tough ring for a hydroxyapatite bioceramic implant of the utility model;
[0018] Figure 4 Shown is a schematic diagram of the three-dimensional structure of a porous tough ring for a hydroxyapatite bioceramic implant of the present invention.
[0019] The markings in the attached drawings are: 1. bone connection component; 2. bone induction growth component; 3. positioning pin; 4. bone screw hole; 101. bone connection sleeve; 102. bone tissue attachment hole; 201. hydroxyapatite bone connection base layer; 202. diamond-shaped protective mesh; 203. porous tough ring. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0021] See also Figure 1-4 The utility model provides an embodiment: a hydroxyapatite bioceramic implant, including a bone connection component 1, a bone induction growth component 2, a positioning pin 3, and a bone screw hole 4; the bone connection component 1 is provided with the bone induction growth component 2; the bone connection component 1 is evenly provided with positioning pins 3, and four positioning pins 3 are provided.
[0022] See also Figure 1-4 In this embodiment, bone screw holes 4 are evenly arranged between the positioning pins 3, and there are four bone screw holes 4; the overall structure is completed by printing with a 3D printer and then sintering, and the bone connection component 1 includes a bone connection sleeve 101 and a bone tissue attachment hole 102; the bone tissue attachment holes 102 are evenly distributed on the side of the bone connection sleeve 101, and the bone tissue attachment holes 102 and the bone connection sleeve 101 are integrally printed and arranged.
[0023] See also Figure 1-4 In this embodiment, the bone induction growth component 2 includes a hydroxyapatite bone connection base 201, a diamond-shaped protective mesh 202, and a porous tough ring 203; the hydroxyapatite bone connection base 201 and the bone connection sleeve 101 are integrally printed and formed, the upper and lower ends of the hydroxyapatite bone connection base 201 are provided with a diamond-shaped protective mesh 202, and the diamond-shaped protective mesh 202 and the hydroxyapatite bone connection base 201 are integrally printed and formed, a porous tough ring 203 is provided inside the hydroxyapatite bone connection base 201, and the porous tough ring 203 and the hydroxyapatite bone connection base 201 are integrally printed and formed, and the porous tough ring 203 is composed of a tubular hexagonal hydroxyapatite printing structure.
[0024] During operation, the end face of the broken bone layer is inserted and positioned through the positioning pin 3 of the bone connection sleeve 101, and then the bone connection component 1 is fixed by passing the bone screw through the bone screw hole 4. At this time, the hydroxyapatite bone connection base layer 201 between the two bones is used to connect the two ends. Since the hydroxyapatite bone connection base layer 201 formed by 3D printing has a large number of structurally stable pores, it is conducive to the attachment and growth, proliferation and differentiation of bone cells, and is conducive to the growth, connection and recovery speed of broken bones. The 3D printing equipment can control the position and geometry of the micropores of bioceramic artificial bones, and the compressive strength and pore size requirements of the product meet the requirements of the implant. The three-dimensional porous structure promotes the adhesion and proliferation of osteoblasts, allows tissue fluid, cells, and growth factors to enter the material, and is conducive to the growth of new bone tissue. The product has uniform pore size and is interconnected; it solves the problem that the existing hydroxyapatite bioceramic implant is difficult to fix on the femoral head connection and difficult to grow again between bone fractures, resulting in a general bone connection recovery effect;
[0025] Next, the structural morphology of the porous tough ring 203 is conducive to supporting the outer edge structure of the hydroxyapatite bone connection base 201, preventing the outer edge of the hydroxyapatite bone connection base 201 from being deformed by force. The hydroxyapatite ceramic scaffold made of the hydroxyapatite material after high-temperature degreasing and sintering has no biotoxicity, and the cells adhered to the surface of the scaffold have a high survival rate. The scaffold has certain biological activity and bone inductivity, and can promote the proliferation of pre-osteoblasts and differentiation of osteoblasts.
[0026] Through the above steps, the end face of the broken bone layer is inserted and positioned through the positioning pin 3 of the bone connection sleeve 101, and then the bone connection component 1 is fixed by passing the bone screw through the bone screw hole 4. At this time, the hydroxyapatite bone connection base 201 between the two bones is used to connect the two ends. Since the hydroxyapatite bone connection base 201 in the 3D printed integral body has a large number of structurally stable pores, it is conducive to the attachment and growth, proliferation and differentiation of bone cells, and is conducive to the growth, connection and recovery speed of broken bones. The 3D printing equipment can control the position and geometry of the micropores of bioceramic artificial bone, and the compressive strength and pore size requirements of the product meet the requirements of the implant. The three-dimensional porous structure promotes the adhesion and proliferation of osteoblasts, allows tissue fluid, cells, and growth factors to enter the material, and is conducive to the growth of new bone tissue. The product has uniform pores and is interconnected, avoiding the existing hydroxyapatite bioceramic implant, because it is difficult to fix on the femoral head connection and the re-growth between the bone fractures is difficult, resulting in a general bone connection recovery effect.
[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.
Claims
1. A hydroxyapatite bioceramic implant, comprising a bone connection component (1), characterized in that: It also includes a bone induction growth component (2), a positioning pin (3), and a bone screw hole (4); the bone connection component (1) is provided with the bone induction growth component (2); the bone connection component (1) is evenly provided with positioning pins (3), and four positioning pins (3) are provided.
2. The hydroxyapatite bioceramic implant according to claim 1, characterized in that: Bone screw holes (4) are evenly arranged between the positioning pins (3), and four bone screw holes (4) are arranged; the overall structure is completed by printing in one piece with a 3D printer and then sintering.
3. The hydroxyapatite bioceramic implant according to claim 1, characterized in that: The bone connection component (1) comprises a bone connection sleeve (101) and bone tissue attachment holes (102); the bone tissue attachment holes (102) are evenly distributed on the side of the bone connection sleeve (101), and the bone tissue attachment holes (102) and the bone connection sleeve (101) are integrally printed and formed.
4. The hydroxyapatite bioceramic implant according to claim 1, characterized in that: The bone induction growth component (2) comprises a hydroxyapatite bone connection base layer (201), a diamond-shaped protective mesh (202), and a porous toughness ring (203); the hydroxyapatite bone connection base layer (201) and the bone connection shaft sleeve (101) are integrally printed and formed.
5. The hydroxyapatite bioceramic implant according to claim 4, characterized in that: The upper and lower ends of the hydroxyapatite bone connection base layer (201) are both provided with diamond-shaped protective meshes (202), and the diamond-shaped protective meshes (202) and the hydroxyapatite bone connection base layer (201) are integrally printed and formed.
6. The hydroxyapatite bioceramic implant according to claim 4, characterized in that: A porous tough ring (203) is arranged inside the hydroxyapatite bone connection base layer (201), and the porous tough ring (203) and the hydroxyapatite bone connection base layer (201) are integrally printed and formed.
7. The hydroxyapatite bioceramic implant according to claim 6, characterized in that: The porous tough ring (203) is composed of a ring-shaped hexagonal hydroxyapatite printing structure.