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Medical micro-power torsion screwdriver

A screwdriver and micro-power technology, applied in the field of medical equipment, can solve the problems of increasing the workload of equipment nurses, the deviation of screw screwing direction, and increasing the workload of medical care, etc., and achieves easy promotion and use, adjustable torque, and easy replacement of batch heads. quick effect

Pending Publication Date: 2021-05-14
崔威
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing orthopedic power systems are all orthopedic electric drills, which are used to drill out the screw channel during the implantation of orthopedic internal fixators to facilitate the screwing in of the fixing screws. When locking the screw, due to the fine pitch of the screw, it takes a long time to screw in, which is time-consuming and labor-intensive, which greatly increases the workload of doctors and nurses. In clinical practice, an electric drill is sometimes used to assist in screwing in the screw. However, the electric drill is heavy and needs repeated screwing. Changing back and forth between the cutter head and the drill bit increases the workload of the instrument nurse, and the power of the electric drill is powerful. If you are not careful, the screw will be screwed to death or even slipped, causing the tail of the screw to be damaged or even unable to be removed. In addition, the electric drill is heavy and easy to damage the screw. The direction of screwing in deviates, which affects the fixing effect

Method used

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  • Medical micro-power torsion screwdriver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 or Figure 5 As shown, the present invention provides a medical micro-power torque screwdriver, comprising a screwdriver handle 1, a screwdriver shaft 2, a coaxial interlocking sleeve 3 and a micro motor 4, the front end and the rear end of the screwdriver handle 1 are respectively provided with a front end cover 101 and a The rear end cover 102 and the front end cover 101 are provided with a front end socket, the coaxial interlocking sleeve 3 and the micro motor 4 are located in the screwdriver handle 1, and a spring 5 is arranged between the coaxial interlocking sleeve 3 and the inner wall of the front end cover 101 , the screwdriver rod 2 runs through the front end socket and the inner ring of the spring 5 is connected with one end of the coaxial interlocking sleeve 3 , and the other end of the coaxial interlocking sleeve 3 is connected with the micro motor 4 . The coaxial interlocking sleeve 3 is used as a torque control device to connect the micro...

Embodiment 2

[0051] Such as image 3 Shown:

[0052] The difference between this embodiment and Embodiment 1 is that the transmission rod 201 and the bit 203 are not connected by the bit sleeve 202 but the electric drill chuck 204 is used. Let me repeat.

[0053] The screwdriver rod 2 includes a transmission rod 201, an electric drill chuck 204 and a bit 203. One end of the transmission rod 201 is connected to one end of the coaxial interlocking sleeve 3, and the other end of the transmission rod 201 and the bit 203 pass through the electric drill chuck 204. connect. Compared with the bit sleeve 202, the electric drill chuck 204 has a wider application range, and the clamping is firmer, and the probability or amplitude of possible eccentric swing is smaller. As an assembly product, the electric drill chuck 204 is easy to be sold in the market. It can be bought online, such as self-tightening drill chuck, etc., and its specific structure will not be described in detail.

[0054] When th...

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PUM

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Abstract

The invention provides a medical micro-power torsion screwdriver which comprises a screwdriver handle, a screwdriver rod, a coaxial mutually-clamped sleeve and a micro motor; a front end cover and a rear end cover are arranged at the front end and the rear end of the screwdriver handle respectively, a front end inserting opening is formed in the front end cover, the coaxial mutually-clamped sleeve and the micro motor are both located in the screwdriver handle, A spring is arranged between the coaxial mutually- clamped sleeve and the inner wall of the front end cover, the screwdriver rod penetrates through the front end inserting opening and an inner ring of the spring to be connected with one end of the coaxial mutual clamping sleeve, and the other end of the coaxial mutually-clamped sleeve is connected with the micro motor. By adopting a micro motor and a torsion control system, the problem of excessive physical labor caused by holding a handheld electric drill for a long time by medical staff is solved, and the adverse conditions of screw tail slipping and cold welding are avoided; a bit sleeve or an electric drill chuck is adopted, the medical micro-power torsion screwdriver is compatible with bits of different sizes, torsion is adjustable, the adaptability is high, bacterial contamination is obviously reduced compared with a common electric drill, andthe medical micro-power torsion screwdriver is very suitable for hospitals and medical staff.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a medical micro-power torque screwdriver. Background technique [0002] The existing orthopedic power systems are all orthopedic electric drills, which are used to drill out the screw channel during the implantation of orthopedic internal fixators to facilitate the screwing in of the fixing screws. When locking the screw, due to the fine pitch of the screw, it takes a long time to screw in, which is time-consuming and labor-intensive, which greatly increases the workload of doctors and nurses. In clinical practice, an electric drill is sometimes used to assist in screwing in the screw. However, the electric drill is heavy and needs repeated screwing. Changing back and forth between the cutter head and the drill bit increases the workload of the instrument nurse, and the power of the electric drill is powerful. If you are not careful, the screw will be screwed to death...

Claims

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Application Information

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IPC IPC(8): A61B17/88
CPCA61B17/8875
Inventor 崔威高瑛
Owner 崔威
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