Guide pipe base for intramedullary nail punching device
A drilling device and guide tube technology, applied in internal fixators, internal bone synthesis, medical science, etc., can solve problems such as inaccurate positioning of guide tubes, and achieve the effect of precise movement trajectories
Active Publication Date: 2015-06-17
CHANGZHOU WASTON MEDICAL APPLIANCE CO LTD
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- Abstract
- Description
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- Application Information
AI Technical Summary
Problems solved by technology
[0004] The technical problem to be solved by the present invention is: in order to overcome the problem of inaccurate positioning of the guide tube in the prior art, provide a guide tube base for an intramedullary nail drilling device
Method used
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Embodiment Construction
[0033] The present invention will be further described below in conjunction with specific examples. It should be understood that the cited examples are only used to illustrate the present invention, and are not intended to limit the scope of the present invention.
[0034] Such as figure 1 , figure 2 Shown, a kind of intramedullary nail drilling device guide tube base, comprising:
[0035] Such as image 3 As shown, the guide tube positioning tube 1, the limit mechanism two includes an "F" shaped groove 11 and an "L" shaped groove 12 opened on the guide tube positioning tube 1; the guide tube positioning tube 1 is a hollow cylinder, "F" Shape groove 11 comprises F long part 111, F short part one 112 and F short part two 113, F short part one 112 communicates with one end of F long part 111, F short part two 113 communicates with the middle part of F long part 111, F The other end of the long part 111 is located at the end of the guide tube positioning tube 1, the F long pa...
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The invention relates to a guide tube seat for an intramedullary nail drilling device, comprising a guide tube positioning tube, a guide tube sleeve seat, a guide tube inner seat, a shift fork disc, a positioning slider, a positioning shaft, a knob and a positioning nail, and the guide tube inner seat Sleeved in the cavity of the guide tube sleeve, and slidingly connected with the guide tube sleeve, the inner seat of the guide tube is located in the axial direction of the guide tube sleeve with a guide through hole, and the cylindrical protrusion of the shift fork disc is embedded in the inner seat of the guide tube, and the dial The fork plate is fixedly connected, the positioning slider is slidably connected with the positioning notch, one end of the positioning slider is connected with the positioning shaft through a spring, and the other end is provided with a positioning nail, the inner seat of the guide tube is slidably connected in the cavity of the guide tube sleeve seat, and the guide tube sleeve The seat sleeve is arranged in the positioning tube of the guide tube. A guide tube seat for an intramedullary nail drilling device of the present invention can limit the axial direction and circumferential direction of the guide tube, make the movement track of the guide tube more accurate, and make the distal end can also be accurately locked, and the spring structure can make The guide tube is more easily withdrawn from the nail.
Description
technical field [0001] The invention relates to the technical field of orthopedic surgery medical instruments, in particular to a guide tube seat for an intramedullary nail drilling device. Background technique [0002] The interlocking intramedullary nail is mainly to punch a hole in the bone marrow and insert a transverse screw to lock the proximal or distal end of the fracture with the intramedullary nail, which is used to control the displacement such as shortening and rotation of the fracture. At home and abroad, interlocking intramedullary nails have been widely used in the treatment of tubular bone fractures. It has firm fixation and avoids the occurrence of axial and rotational deformities of fractures. At present, the more common technique is intramedullary nail aiming technology, but because the insertion end of the interlocking intramedullary nail is affected by the physiological curvature of the bone when it is implanted into the medullary cavity of the bone, the...
Claims
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IPC IPC(8): A61B17/90A61B17/72
CPCA61B17/72A61B17/90
Inventor 高志良王生介胡仁民徐明杨佳平
Owner CHANGZHOU WASTON MEDICAL APPLIANCE CO LTD