Adjustable bracket for bone block pulling

By using a traction pin made of a mixture of stainless steel and zinc metal in an adjustable scaffold for bone lifting, the degradation of zinc metal is accelerated by utilizing the galvanic cell effect, forming a local high-concentration zinc ion area. This solves the problem of insufficient biological function of existing scaffolds and enables rapid healing and microcirculation improvement of ischemic limbs in diabetic patients.

CN122423946APending Publication Date: 2026-07-21SHANGHAI SIXTH PEOPLES HOSPITAL
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI SIXTH PEOPLES HOSPITAL
Filing Date
2026-03-09
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing tibial transport stents do not possess the biological functions of actively promoting wound healing, improving microcirculation, and fighting infection. Furthermore, the ion release rate of biodegradable metal bone needles is slow and the local concentration is low, making it difficult to effectively promote the healing of ischemic limb ulcers in diabetic patients.

Method used

The device employs a hybrid traction needle made of stainless steel and zinc metal. It utilizes the galvanic cell effect to accelerate the degradation of zinc metal in the limb tissue fluid environment, forming a local high-concentration zinc ion area. Combined with the design of the guide screw and limiting sleeve, it enables precise bone block transportation and local drug delivery.

Benefits of technology

It significantly improves microcirculation in ischemic limbs of diabetic patients, accelerates ulcer healing, and enhances limb preservation. Through the synergistic effect of local high concentrations of zinc ions and a weak electric field, it promotes wound repair.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122423946A_ABST
    Figure CN122423946A_ABST
Patent Text Reader

Abstract

The application discloses a kind of adjustable support for bone block pulling, belong to medical instrument technical field, including first support and the guide screw of being installed in the middle part of first support, the lower end of the guide screw is equipped with second support, the long traction needle of the two sides of first support is set to stainless steel material, the middle short traction needle of the two sides of second support is set to zinc metal material.The adjustable support for bone block pulling, the traction needle of the two sides of support is made of stainless steel material, the middle traction needle is made of zinc metal material, different metals form primary cell effect under the environment of body tissue fluid, make middle zinc needle accelerate degradation, form local high concentration zinc ion area around needle path and wound, while primary cell reaction produces weak local electric field, the synergistic effect of bacteriostatic and healing of zinc ion and the role of promoting blood vessel regeneration and promoting tissue repair of local electric field synergistically, significantly improve the microcirculation of diabetic ischemic extremities, accelerate ulcer wound healing, improve the effect of limb salvage.
Need to check novelty before this filing date? Find Prior Art