A surgical hand-held ring saw
CN224369914UActive Publication Date: 2026-06-19THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
- Filing Date
- 2025-04-17
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
Existing trephine saws are not convenient to insert into the patient's bone tissue when locating the lesion, cannot be safely positioned, and are not convenient to remove the bone tissue after cutting, resulting in low surgical precision and efficiency.
Method used
A surgical manual trephine saw was designed, including a navigation bracket, a guide rod, a trephine head, and a handle. The lesion position is limited by the threaded positioning pin on the guide rod, and the trephine head is driven by the handle to cut. After cutting, bone tissue can be directly removed.
Benefits of technology
It achieves precise positioning, safe stenosis, and convenient removal of bone tissue, improving surgical efficiency and reducing surgical risks.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224369914U_ABST
Abstract
This utility model relates to the field of medical devices and discloses a manual trephine saw for surgery. The manual trephine saw includes a navigation bracket, a guide rod, a trephine saw head, and a handle. One end of the guide rod is rotatably mounted on the navigation bracket, and the other end is provided with a threaded positioning pin. The trephine saw head includes a sleeve and an annular incision. The sleeve is fitted onto the guide rod and can slide and rotate along the axial direction of the guide rod. The annular incision is located at the end of the sleeve away from the navigation bracket. The handle is used to drive the guide rod or the trephine saw head to rotate. This utility model can achieve precise positioning of the patient's lesion bone tissue, provide safe limitation, and simultaneously remove bone tissue. It is highly practical, greatly improves surgical efficiency, and reduces surgical risks.
Need to check novelty before this filing date? Find Prior Art