a bone-penetrating needle
A technology of bone needles and main bone needles, applied in the field of medical tools, can solve the problems of difficult recovery and large wounds.
Active Publication Date: 2020-06-19
安徽威宇医疗器械科技有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0003] Because the existing metal bone needles are relatively small, it is often necessary to cut a large wound when inserting the bone needles. The wound is relatively large and it is difficult to recover in the later stage. It is easier and more convenient to achieve minimally invasive
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[0017] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0018] Figure 1-5 A preferred embodiment of the present invention is described in detail below in conjunction with the drawings: a bone needle that is easy to enter, including a main bone needle 1 and a bone needle sleeve 2, the upper part of the main bone needle 1 is a cylindrical worm 3, and the lower part is a conical drill bit 4, Described bone needle cover 2 is provided with two symmetrical chute 5, and described chute 5 is fixedly provided with limiting plate 6 and push rod 7, and described push rod 7 passes through limiting plate 6, and described push rod 7 is fixedly provided with baffle plate 8, is provided with back-moving spring 9 between described baffle plate 8 and limit plate 6, and the lower end of described push rod 7 is provided with receiving knife box 10, and the outer side wall of described knife receiving box 10 A knife...
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The invention discloses an easy-penetrating bone needle, comprising a main bone needle and a bone needle sleeve. The upper portion of the main bone needle is a cylindrical worm, the lower portion of the main bone needle is a conical bit, the inside of the bone needle sleeve is provided with two symmetric slide grooves, a limiting plate and a push rod are fixed in the slide grooves, the push rod ispassed through the limiting plate, a retaining plate is fixed on the push rod, a return spring is arranged between the retaining plate and the limiting plate, the lower end of the push rod is provided with a tool receiving box, the outer wall of the tool receiving box is provided with a tool discharge through slot, the inside of the tool receiving box is provided with a T-shaped cutting blade anda push-out spring, and the T-shaped cutting blade is passed through the tool discharge through slot. The easy-penetrating bone needle is simple in structure; the main bone needle can be driven out ofbone through the bone needle sleeve so that a minimally invasive wound is made, and the main bone needle drills into the bone for fixation; therefore, less injury is caused to a patient, and postoperative rehabilitation period is shortened.
Description
technical field [0001] The invention relates to the field of medical tools, in particular to a bone-penetrating needle. Background technique [0002] The metal bone pin is an internal fixation device for treating fractures. The bone pin is made of metal materials, mainly pure titanium, titanium alloy, cobalt-based alloy and stainless steel. Metal and alloy materials have sufficient strength and toughness, strong resistance to bending and torsion, are biologically inert materials, and the combination with bone is a mechanical lock. [0003] Because the existing metal bone needles are relatively small, it is often necessary to cut a large wound when inserting the bone needles. The wound is relatively large and it is difficult to recover in the later stage. It is easier and more convenient, and minimally invasive can be achieved. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide an easy-to-bone needle to solve the a...
Claims
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IPC IPC(8): A61B17/68A61B17/92
CPCA61B17/683A61B17/92
Inventor 金鑫
Owner 安徽威宇医疗器械科技有限公司