阅读说明：本技术 一种螺纹环抱式取骨环锯 (Thread encircling type bone taking trepan ) 是由 贺石生 倪海键 冯超博 于 2021-10-11 设计创作，主要内容包括：本申请提出一种螺纹环抱式取骨环锯,包括：手柄、锯齿和中空的锯杆；所述锯杆的一端上设置有缺口；所述锯齿设置在所述锯杆设有缺口的一端上且位于端口处,所述手柄设置在所述锯杆的另一端上；所述锯杆在设置有缺口的一端内壁中设置有螺纹；所述锯杆在缺口处设置有环抱式锯板,且环抱式锯板向锯杆中间处延伸设置；本申请中,通过锯齿切割骨组织,然后通过锯杆内壁中的螺纹咬合并固定骨组织,以此可以快捷取下骨组织,而环抱式锯板可以实现环锯在转动时以不规则轨迹转动,以此可以达到更快切割及咬合固定骨组织的效果,从而进一步提高工作效率,且本申请工作步骤简单,使用方便,能减少取骨时繁琐的工作量,并适用于各种形态的骨组织的去除。(The application provides a bone trepan is got to screw thread formula of embracing includes: a handle, a saw tooth and a hollow saw bar; one end of the saw rod is provided with a notch; the saw teeth are arranged at one end of the saw rod, which is provided with the notch, and are positioned at the port, and the handle is arranged at the other end of the saw rod; the inner wall of one end of the saw rod, which is provided with the notch, is provided with a thread; the saw rod is provided with an encircling saw plate at the notch, and the encircling saw plate extends towards the middle of the saw rod; in this application, cut bone tissue through the sawtooth, then the screw thread through in the saw pole inner wall is stung and is fixed bone tissue, with this bone tissue can swiftly take off, and the formula of encircleing saw board can realize that the trepan rotates with irregular orbit when rotating, with this effect that can reach faster cutting and the fixed bone tissue of interlock, thereby further improve work efficiency, and this application working procedure is simple, high durability and convenient use, loaded down with trivial details work load when can reducing the bone of getting, and be applicable to getting rid of the bone tissue of various forms.)

1. The utility model provides a bone trephine is got to screw thread formula of embracing which characterized in that includes: a handle, a saw tooth and a hollow saw bar; one end of the saw rod is provided with a notch; the saw teeth are arranged at one end of the saw rod, which is provided with the notch, and are positioned at the port, and the handle is arranged at the other end of the saw rod;

the inner wall of one end of the saw rod, which is provided with the notch, is provided with a thread; the saw pole is provided with the formula of embracing saw board in breach department, and the formula of embracing saw board extends the setting to the saw pole centre department.

2. The threaded encircling bone-extracting trepan of claim 1, wherein: the encircling saw plates are provided with two encircling saw plates which are respectively arranged on the saw rods at two sides of the gap.

3. The screw encircling type bone harvesting trepan according to claim 1 or 2, wherein: the extending direction of the encircling saw plate points to the central line of the saw rod.

4. The threaded encircling bone-extracting trepan of claim 3, wherein: the length of the encircling saw plate corresponds to that of the notch.

5. The threaded encircling bone-extracting trepan of claim 1, wherein: the thread is a continuous thread.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a thread encircling type bone taking trepan.

Background

Trephines are used in spinal endoscopic surgery, primarily to remove or abrade bone tissue to reveal the surgical field and construct surgical tunnels.

The bone removed by the trepan can be used in the subsequent bone grafting operation. Although a trephine used under a spinal endoscope can achieve the purpose of segmenting bone tissues at present, the sawed bone tissues need to be taken out through auxiliary tools such as forceps. Because the auxiliary instrument often can not clear up the bone tissue of cutting completely, lead to needing to use trepan or other apparatus again and clear up repeatedly, consequently can increase unnecessary work load in the operation, the operation is loaded down with trivial details relatively moreover, simultaneously because bone tissue position operating space is little, takes out bone tissue and also has certain difficulty.

Therefore, there is a need to provide a technical solution that can rapidly remove bone tissues of various forms and improve work efficiency.

Disclosure of Invention

The invention provides a thread encircling type bone taking trepan, and aims to solve the problems of complex operation, large workload and low efficiency in the process of removing bone tissues by using the conventional trepan.

The technical scheme adopted by the invention is as follows: a threaded encircling bone-extracting trepan comprising: a handle, a saw tooth and a hollow saw bar; one end of the saw rod is provided with a notch; the saw teeth are arranged at one end of the saw rod, which is provided with the notch, and are positioned at the port, and the handle is arranged at the other end of the saw rod;

the inner wall of one end of the saw rod, which is provided with the notch, is provided with a thread; the saw pole is provided with the formula of embracing saw board in breach department, and the formula of embracing saw board extends the setting to the saw pole centre department.

Furthermore, the encircling saw plates are provided with two encircling saw plates which are respectively arranged on the saw rods at two sides of the gap.

Further, the extending direction of the encircling saw plate points to the central line of the saw rod.

Furthermore, the length of the encircling saw plate corresponds to that of the notch.

Further, the thread is a continuous thread.

The invention has the beneficial effects that:

in this application, cut bone tissue through the sawtooth, then the screw thread through in the saw pole inner wall is stung and is fixed bone tissue, with this bone tissue can swiftly take off, and the formula of encircleing saw board can realize that the trepan rotates with irregular orbit when rotating, with this effect that can reach faster cutting and the fixed bone tissue of interlock, thereby further improve work efficiency, and this application working procedure is simple, high durability and convenient use, loaded down with trivial details work load when can reducing the bone of getting, and be applicable to getting rid of the bone tissue of various forms.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic side view of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;

FIG. 3 is a front view of an embodiment of the present invention;

FIG. 4 is a partial enlarged view of an embodiment of the present invention.

Reference is made to the accompanying drawings in which: 1. a handle; 2. a saw bar; 3. saw teeth; 4. a thread; 5. encircling saw plates; 6. and (4) a notch.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The invention provides a thread encircling type bone taking trepan, and aims to solve the problems of complex operation, large workload and low efficiency in the process of removing bone tissues by using the conventional trepan.

Referring to fig. 1 to 4, to achieve the object, the present invention provides a screw thread 4 encircling type bone-taking trepan, comprising: a handle 1, saw teeth 3 and a hollow saw rod 2; a gap 6 is arranged at one end of the saw rod 2, specifically, in the embodiment, the length of the gap 6 is far shorter than that of the saw rod 2 (see fig. 4), and the gap 6 can be matched with the encircling saw plate 5 to change the rotation path of the circular saw and conveniently take out bone tissues in the saw rod 2; the saw teeth 3 are arranged at one end of the saw rod 2 with the notch 6, the saw teeth 3 are arranged around the port of the end, the handle 1 is arranged at the other end of the saw rod 2, the center line of the handle 1 is overlapped with the center line of the saw rod 2, and the cross section area of the handle 1 is larger than that of the saw rod 2, so that a hand or other external force can conveniently act on the handle 1 and the saw rod 2 can be rotated; the inner wall of one end of the saw rod 2, which is provided with the notch 6, is provided with a thread 4, specifically, the thread 4 can be a continuous thread 4 or an interrupted thread 4, and in this embodiment, the thread 4 is provided as the continuous thread 4; the saw rod 2 is provided with an encircling saw plate 5 at the gap 6, and the encircling saw plate 5 extends towards the middle of the saw rod 2; wherein, act on the handle 1 through external force, make the saw pole 2 take place the rotation, thereby let the sawtooth 3 on the saw pole 2 cut bone tissue, then in the cutting, through the interlock of the screw thread 4 in the inner wall of saw pole 2 and fixed bone tissue, bone tissue can swiftly be taken off with this, and in the cutting, through breach 6 and the effect of formula saw board of embracing, can realize that the trepan rotates with irregular orbit when rotating, make it change circular cutting route into irregular cutting route, can reach faster cutting effect with this, and further the fixed bone tissue of cutting out of interlock, with this can further improve bone tissue removal effect, and can further improve work efficiency, and the step of bone tissue is got rid of in this application is simple, high durability and convenient use, can reduce the loaded down with trivial details work load when getting the bone, and be applicable to the getting rid of the bone tissue of various forms.

Further, in this embodiment, the two encircling saw plates 5 are respectively disposed on the saw bars 2 at two sides of the gap 6 (see fig. 3), and the extending direction of the encircling saw plates 5 points to the central line of the saw bars 2, so that the two encircling saw plates 5 are perpendicular to each other, and the length of the encircling saw plates 5 corresponds to the length of the gap 6, thereby ensuring the cutting effect and the fixing effect of the bone tissue, and preventing the overlong influence of the encircling saw plates 5 on the cutting and the occlusion of the bone tissue.

Compared with the prior art, this application is applicable to getting rid of various form bone tissue in the operation, and uses the trepan of this application, can directly accomplish cutting, interlock and taking out of bone tissue, need not come supplementary the getting rid of with the help of other instruments again, and reducible operating procedure is more convenient in the use, can effectively improve user's work efficiency.

Any combination of the various embodiments of the present invention should be considered as disclosed in the present invention, unless the inventive concept is contrary to the present invention; within the scope of the technical idea of the invention, any combination of various simple modifications and different embodiments of the technical solution without departing from the inventive idea of the present invention shall fall within the protection scope of the present invention.