一种髓腔铰刀

Abstract

本实用新型公开一种髓腔铰刀，包括杆体和铰刀头，铰刀头设置在杆体的末端；铰刀头上设有至少两个螺旋形刀体，相邻的螺旋形刀体之间设有排屑槽；杆体的末端设有用于装配铰刀头的螺纹柱；髓腔铰刀还包括冷却结构，冷却结构设置在杆体上。本实用新型的有益效果是：本技术方案通过反向螺旋排屑槽结合金刚石涂层刀体，切割效率较传统器械提升30％，手术时间缩短20％；闭环冷却系统与实时监控技术协同工作，骨组织热坏死发生率降低70％；模块化与智能化：磁吸锁定与射频识别技术实现多型号快速适配，操作误差率小于1％。

Claims

1. A reamer for a medullary cavity, characterized in that: It includes a rod body (100) and a reamer head (200), the reamer head (200) being disposed at the end of the rod body (100); The reamer head (200) is provided with at least two helical cutter bodies (201), and a chip removal groove (202) is provided between adjacent helical cutter bodies (201); The end of the rod (100) is provided with a threaded post (101) for assembling a reamer head (200); The medullary reamer also includes a cooling structure disposed on the rod (100).

2. A reamer according to claim 1, wherein: The cooling structure includes a main channel (301) and an auxiliary channel (302). The main channel (301) extends from the center of the end face of the head of the rod (100) along the rod (100) to the end of the threaded column (101) but does not penetrate it. The auxiliary channel (302) is disposed inside the rod (100) and spirals around the main channel (301). The bottom of the auxiliary channel (302) is connected to the bottom of the main channel (301), and the top of the auxiliary channel (302) protrudes from the side wall of the rod (100) and communicates with the outside.

3. A reamer according to claim 2, wherein: The cooling structure also includes a coolant inlet (303) located at the head of the rod (100) and a coolant outlet (304) located at the top of the auxiliary channel (302). The coolant inlet (303) is connected to the main channel (301), and the coolant outlet (304) is connected to the coolant recovery device through an external pipeline to form a closed-loop cooling circulation system.

4. The reamer according to claim 2, wherein: The inner wall of the auxiliary channel (302) is provided with a nano-hydrophobic coating with a contact angle ≥150°, which is used to reduce the flow resistance of the coolant and prevent the adhesion of biological tissues.

5. The reamer according to claim 1, wherein: The medullary cavity reamer also includes an intelligent interaction system, which includes a pressure sensor (401) and a temperature sensor (402) disposed on the bottom end face of the threaded post (101). Both the pressure sensor (401) and the temperature sensor (402) have built-in Bluetooth. The intelligent interaction system also includes an external display.

6. A reamer according to claim 5, wherein: The intelligent interactive system also includes a data processing module, which has a built-in microprocessor for receiving data from the pressure sensor (401) and the temperature sensor (402) and transmitting the analysis results to an external display in real time via Bluetooth. The display has an early warning function that triggers an audible and visual alarm when the temperature exceeds a threshold or the pressure is abnormal.

7. The reamer according to claim 1, wherein: A magnetic locking ring is provided at the connection between the threaded post (101) and the reamer head (200). The magnetic locking ring has a built-in permanent magnet. A magnetically conductive metal sheet is embedded in the corresponding position of the reamer head (200). The reamer head (200) can be quickly installed and prevented from loosening through magnetic attraction.

8. The reamer according to claim 1, wherein: The end of the rod (100) is provided with a standardized interface, which is compatible with reamer heads (200) of different diameters. The model information of the reamer head (200) is stored through an RFID chip and communicates wirelessly with the intelligent interactive system to achieve automatic identification and parameter matching.

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