Novel high-efficiency and easy-to-pull-out bone spicule

Abstract

The invention relates to a novel high-efficiency and easy-to-pull-out bone spicule, include a metal needle body, a levo-polylactic acid needle, an L-polylactic acid sheath and a metal needle handle. The metal needle body is provided with a positioning groove on that front end face and the rear end face, the positioning groove is coaxially distributed with the metal needle body. At least two connecting slots are uniformly arranged on that outer surface of the metal needle. the left-hand polylactic acid needle head comprises a connecting post and a cone head, the metal needle handle comprises aguide post and a tail shank, and the left-hand polylactic acid sheath is a hollow tubular structure coaxially distribute with the metal needle body, and is coated on the outer surface of the metal needle and interconnected with the outer surface of the metal needle through the connecting slot. On the one hand, the bone spicule has good structural strength, and can effectively promote the speed ofbone healing; on the other hand, the bone spicule can effectively improve the efficiency when the bone needle is pulled out from the bone; moreover, the wound area after pulling out is small, and thewound is convenient for rapid healing.

Description

technical field [0001] The invention relates to a bone needle device, in particular to a novel high-efficiency and easy-to-extract bone needle. Background technique [0002] Bone needles are currently one of the important tools for positioning bones such as fractures, and are widely used. However, in actual use, it has been found that current bone needles are often made of pure titanium or titanium alloy lamp metal materials, and bone The surface of the needle is smooth and the diameter is small, so that when the bone needle is pulled out from the human body, the resistance between the bone needle and human tissue increases due to factors such as human bones and muscles, which makes it difficult to pull out. The surface of the needle is smooth and the diameter is small, which further increases the difficulty of pulling out the bone needle. It often requires a variety of tools to achieve the purpose of pulling out the bone needle. The labor intensity is high, the operation sa...

AI Technical Summary

Problems solved by technology

[0002] Bone needles are currently one of the important tools for positioning bones such as fractures, and are widely used. However, in actual use, it has been found that current bone needles are often made of pure titanium or titanium alloy lamp metal materials, and bone The surface of the needle is smooth and the diameter is small, so that when the bone needle is pulled out from the human body, the resistance between the bone needle and human tissue increases due to factors such as human bones and muscles, which makes it difficult to pull out. The surface of the needle is smooth and the diameter is small, which further increases the difficulty of pulling out the bone needle. It often requires a variety of tools to achieve the purpose of pulling out the bone needle. The labor intensity is high, the operation safety is relatively low, and it is easy to cause the wound to expand And cause the patient's suffering to increase phenomenon, in view of this problem, although have developed a variety of bone spicule structures that are convenient to pull out operation at present, as application number is: the bone spicule structure of 201520809169. Improve the efficiency of pulling out and reduce labor intensity, but it is often necessary to add additional structures such as "blade" to the structure of the bone needle, which leads to an increase in the structure of the bone needle and increases the difficulty of processing the bone needle, which also causes the bone needle to cause harm to the patient. The increase of the wound surface is not conducive to the healing and recovery of the patient's wound. In addition, because the current bone needles are all made of pure metal, they cannot effectively nourish the damaged bone during the bone positioning process. Therefore, in view of this problem, it is urgent to develop a new bone needle structure to meet the needs of actual use.

Images