阅读说明：本技术 一种螺纹球头骨圆针 (Threaded ball head bone round needle ) 是由 傅德皓 肖宝钧 刘国辉 杨述华 于 2020-06-08 设计创作，主要内容包括：本发明公开一种螺纹球头骨圆针,包括针杆,所述针杆为直线型,针杆由下至上依次分为钻杆段、球头段和夹持段,所述钻杆段的截面形状为圆形,钻杆段的前端设有自钻钉头且其杆身上设有螺纹而形成自钻自攻丝结构,所述球头段为球状,球头段的直径大于钻杆段的直径。所述钻杆段的直径为3.5或4.5mm。所述夹持段末端向前延伸3-4cm的截面形状为多边形。本发明的优点在于,该螺纹球头骨圆针用于在钢板固定的初始状态对钢板进行临时固定,待钢板通过螺钉固定牢固后取下,避免术中钢板处于不稳定时进行钻孔操作,简化了操作步骤,提高了手术的效率。(The invention discloses a threaded ball head bone round needle which comprises a needle rod, wherein the needle rod is linear, the needle rod is sequentially divided into a drill rod section, a ball head section and a clamping section from bottom to top, the cross section of the drill rod section is circular, a self-drilling nail head is arranged at the front end of the drill rod section, a thread is arranged on the rod body of the drill rod section to form a self-drilling and self-tapping structure, the ball head section is spherical, and the diameter of the ball head section is larger than that of the drill rod section. The diameter of the drill rod section is 3.5 or 4.5 mm. The cross section of the clamping section, which extends forwards by 3-4cm, is polygonal. The invention has the advantages that the threaded ball head bone round needle is used for temporarily fixing the steel plate in the initial state of steel plate fixation, and is taken down after the steel plate is firmly fixed by the screw, so that the drilling operation when the steel plate is unstable in the operation is avoided, the operation steps are simplified, and the operation efficiency is improved.)

1. The utility model provides a screw thread bulb bone round pin which characterized in that: the self-drilling self-tapping needle comprises a needle rod, the needle rod is of a linear type, the needle rod is sequentially divided into a drill rod section, a ball head section and a clamping section from bottom to top, the cross section of the drill rod section is circular, a self-drilling nail head is arranged at the front end of the drill rod section, threads are arranged on the rod body of the drill rod section, a self-drilling self-tapping structure is formed, the ball head section is spherical, and the diameter of the ball head section is larger than that of the drill rod section.

2. The threaded ball stud as claimed in claim 1, wherein: the diameter of the drill rod section is 3.5 or 4.5 mm.

3. The threaded ball stud as claimed in claim 1, wherein: the cross section of the clamping section, which extends forwards by 3-4cm, is polygonal.

Technical Field

The invention relates to the technical field of orthopedic medical instruments, in particular to a threaded ball head bone round needle.

Background

In clinical orthopedics, the steel plate needs to be pressurized in the process of fixing the steel plate so as to reduce the gap between the steel plate and the skeleton, so that the steel plate is more attached to the surface of the skeleton, and the soft tissue volume occupied by the steel plate is further reduced. The conventional operation method in the operation is as follows: after the reduction is finished, the steel plate is placed in, holes are drilled above and below the fracture position respectively, the compression screws are screwed in, and the steel plate is compressed by screwing down the compression screws. However, when the steel plate is placed, the steel plate is not fixed, that is, is in an unstable state, especially in a part with complicated anatomy or difficult exposure, and at this time, drilling operation needs to be performed with extreme caution, operation difficulty is high, operation is complicated, and operation time is increased. Therefore, the conventional compression screw is not suitable for use in an initial state after the steel plate is set.

Disclosure of Invention

The invention aims to provide a threaded ball head bone round needle aiming at the existing technical situation, which avoids drilling operation when a steel plate is unstable in an operation, simplifies operation steps and improves operation efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a screw thread bulb bone circle needle, includes the needle bar, the needle bar is the linear type, and the needle bar divide into drill rod section, bulb section and centre gripping section by supreme down in proper order, the cross sectional shape of drill rod section is circular, and the front end of drill rod section is equipped with from the drill head and is equipped with the screw thread on its pole body and form from boring from the tapping structure, the bulb section is globular, and the diameter of bulb section is greater than the diameter of drill rod section.

Further, the diameter of the drill rod section is 3.5 or 4.5 mm.

Furthermore, the cross section of the tail end of the clamping section, which extends forwards for 3-4cm, is polygonal.

The invention has the beneficial effects that:

this screw thread bulb bone round needle is used for fixing temporarily the steel sheet at the initial condition that the steel sheet is fixed, treats that the steel sheet takes off after firmly through the fix with screw, avoids the art steel sheet to carry out the drilling operation when being in the unstability, has simplified operating procedure, has improved the efficiency of operation.

Drawings

FIG. 1 is a schematic structural view of a needle bar according to the present invention.

Description of the labeling: 1. 1-1 parts of a drill rod section, 2 parts of a self-drilling nail head, 3 parts of a ball head section and a clamping section.

Detailed Description

The invention will be further explained with reference to the drawings.