Femoral head supporting device for treating femoral head necrosis
A technology for femoral head necrosis and supporting devices, which is applied in the field of medical devices, can solve the problems of changing device positions and inability to support devices, etc., and achieves the effects of easy operation, increased service life, and simple structure
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0036] Such as figure 1 , figure 2 Shown, a kind of femoral head support device for the treatment of femoral head necrosis, comprising:
[0037] The shaft sleeve 2 used for expansion and fixation, the interior of the shaft sleeve 2 is hollow, and the surface of the shaft sleeve 2 is provided with several first through holes 23, after the support device is fixed inside the femoral head 4, bone fragments are thrown into the gap, and the first through holes 23 helps the bone cells inside and outside the sleeve grow together, and is divided into an upper part 21 that cannot expand and a lower part 22 that can be squeezed and expanded. The upper part 21 is a cylindrical structure, and the lower part 22 is a There is a conical cylindrical structure with expansion joints 221 inside the side, and several small thorns 24 are provided on the surface of the shaft sleeve 2 to help the shaft sleeve 2 snap into the inside of the femoral head 4. Entering the inside of the femoral head 4, ...
Embodiment 2
[0047] The difference between embodiment 2 and embodiment 1 is that in the last step of the implementation process, the bone crushing mixture is used to fill the gap between the support device and the femoral head curettage focus. The weight ratio is mixed, and the particle 5 for promoting femoral head healing includes a core layer 51 with drug sustained release, a shell layer 52 that protects the core layer 51 during the electrospinning process in the later stage of preparation, and a drug 53 embedded in the core layer 51. According to the function and effect, drugs 53 are divided into: anti-apoptotic healing drugs, calcium absorption-promoting healing drugs, osteocyte-promoting healing drugs and anti-inflammatory healing drugs. The weight ratio of the above four drugs is 1:1:1 :1. Among them, the anti-apoptotic healing drug is zinc, the calcium absorption-promoting healing drug is vitamin D, the osteocyte-promoting healing drug is bone morphogenetic protein, and the anti-inf...
Embodiment 3
[0055] The difference between embodiment 3 and embodiment 1 is that in the last step of the implementation process, the broken bone mixture is filled with the gap between the support device and the curettage of the femoral head. The femoral head healing particles 5 are prepared by embedding. The embedded drugs include zinc for anti-apoptosis, vitamin D for promoting calcium absorption, bone morphogenetic protein for promoting osteocyte formation, and anti-inflammatory healing Cefixime, the weight ratio of the above four drugs is 1:1:1:1.
[0056] The preparation process of the particles promoting femoral head healing is as follows:
[0057] S61: Take the sodium alginate aqueous solution as the water phase, and the isooctane solution of Span 80 as the oil phase. After emulsifying to form a W / O system, slowly add CaCl 2 solution dropwise to cross-link and solidify the sodium alginate droplets to form calcium alginate nanoparticles. After stirring and solidifying, add absolute e...
PUM
![No PUM](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap