A channel preparation tool for pelvic iliac crest external fixator screws
An external fixator and iliac crest technology is applied in the field of channel preparation tools for pelvic iliac crest external fixator screws to achieve the effects of reducing radiation exposure, preventing deviation, and ensuring stability and durability
Active Publication Date: 2017-03-15
蔡鸿敏
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] At present, the operation of percutaneous minimally invasive nail placement technology is purely manual operation, and there are no exclusive instruments and tools for opening, fixing, establishing and maintaining the channel of the external fixator screw
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] The present invention will be further described through specific embodiments below in conjunction with the accompanying drawings.
[0032]As shown in the figure, a channel preparation tool for pelvic iliac crest external fixator screws includes a hollow sleeve I1, a hollow sleeve II2, a hand cone 3 and a probe rod 4, wherein the lower end of the hollow sleeve I1 is provided with multiple The sawtooth 101 in contact with the surface of the iliac crest bone, the hollow sleeve II2 is sleeved in the hollow sleeve I1, the outer wall of the hollow sleeve II2 is in contact with the inner wall of the hollow sleeve I1, and the upper end of the hollow sleeve I1 and the hollow sleeve II2 Both are equipped with annular limit heads surrounding their respective cylinder walls, and the upper end faces of the annular limit heads are flush with the upper edges of the hollow sleeve I1 and the hollow sleeve II2, and the hollow sleeve II2 is sleeved on the hollow sleeve After I1 is inside,...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A channel preparation tool for pelvic iliac crest external fixator screws, including hollow sleeve I, hollow sleeve II, hand awl and probe rod, wherein the lower end of hollow sleeve I is provided with serrations that contact the surface of iliac crest bone, hollow The sleeve II is set inside the hollow sleeve I, and the lower end of the hollow sleeve II is provided with a spike that penetrates into the bone of the iliac crest. After the hand awl is inserted into the hollow sleeve II, its awl tip extends from the lower end to pierce the iliac crest bone cortex and then penetrate into the cancellous bone to form the opening of the screw channel. The lower end of the probe rod is provided with a blunt tip, which is inserted into the deep part of the iliac cancellous bone through the opening of the screw channel to establish the screw channel. , driving the spike at the lower end of the hollow sleeve II into the iliac crest bone around the established screw channel can be used to maintain the direction of the channel. The invention integrates the opening, fixed point, establishment and direction maintenance of the screw channel, and simply and conveniently prepares the screw channel of the pelvic iliac crest external fixator, reducing the radiation exposure of patients and surgical staff.
Description
technical field [0001] The invention belongs to the field of minimally invasive surgery for pelvic injuries in trauma orthopedics, in particular to a channel preparation tool for pelvic external fixator screws inserted percutaneously from the iliac crest. Background technique [0002] Pelvic external fixation occupies a certain position in the treatment of pelvic injuries. Its indications include: first aid for biomechanically and hemodynamically unstable pelvic trauma to help reduce pelvic volume, self-packing and resuscitative treatment, etc.; for ultimate treatment of OTA-61B fractures; for OTA-61C Enhancement of internal fixation for fractures. At present, there are two main forms of pelvic external fixation: one is the external fixation frame with screws inserted through the anterior inferior iliac spine (AIIS), referred to as AIIS external fixation frame; the other is the external fixation frame through the iliac crest (iliac crest). , IC) into the external fixator w...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/90
CPCA61B17/00234A61B17/90
Inventor 蔡鸿敏刘又文李红军成传德汤金城吴学建蔡继武李林林
Owner 蔡鸿敏