CN213552251U

CN213552251U - Traction nail for intertaxillary ligation

Info

Publication number: CN213552251U
Application number: CN202022393674.6U
Authority: CN
Inventors: 张善勇; 毛懿; 王学宏; 谢昕儒; 陈旭卓
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-06-29
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a traction nail for intertangled ligation, which comprises a nail body, a connecting rod and a nail head, wherein the nail body is connected with the nail head through the connecting rod; the nail body comprises a traction plate and a threaded part, and the traction plate is connected with the nail head through the connecting rod; the width of the connecting rod is smaller than the width of the nail head and the width of the traction plate at two ends, and the connecting rod, the nail head and the traction plate form a groove structure; the nail body is provided with a thread part which is provided with threads. The utility model provides a pull nail both can ensure that the screw thread can not the overlength and be adapted to Asian, can not make again and pull the nail and lose the engaging force because of the screw thread size adjustment, also can not be because of the nut undersize by the soft tissue embedding.

Description

Traction nail for intertaxillary ligation

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a nail that pulls of intermaxillary ligation.

Background

When a patient performs an operation related to an occlusion relationship, such as orthognathic operation, facial fracture operation, temporomandibular joint tumor operation, etc., to maintain a stable occlusion relationship, an upper jaw and a lower jaw are temporarily fixed together by inter-jaw ligation, and at this time, inter-jaw ligation nails are used as pillars for generating ligation force.

But the current draw nail of existing shortcoming lies in: the thread of a part of the traction nail is too long, and the size is not suitable for Asians; and although the thread length of some domestic traction nails is shortened, the traction nails have the defect that the nail heads are too small and are easy to be embedded by oral mucosa.

Accordingly, it is desirable to provide a distraction nail that is sized to ensure that the threads are not too long to accommodate asians, that the distraction nail loses its engagement force due to the sizing of the threads, and that the nut is too small to be embedded by soft tissue.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nail pulls of ligature between jaw, its helicitic texture is fit for the Asian more, and the head has sufficient length and guarantees that it is not covered by the oral mucosa.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The utility model provides a traction nail for intertangled ligation, which comprises a nail body, a connecting rod and a nail head, wherein the nail body is connected with the nail head through the connecting rod;

the nail body comprises a traction plate and a threaded part, and the traction plate is connected with the nail head through the connecting rod;

the width of the connecting rod is smaller than the width of the nail head and the width of the traction plate at two ends, and the connecting rod, the nail head and the traction plate form a groove structure;

the nail body is provided with a thread part which is provided with threads.

In some embodiments, the plate has a hole.

In some embodiments, the length of the traction nail is 10.5-12.5 mm; for example the length of the traction spike is 10.5mm, 11.5mm or 12.5 mm.

In some embodiments, the length of the nail body is 7-8 mm; for example, the length of the nail body is 7mm or 8 mm.

In some embodiments, the length of the threaded portion is 5.4-8 mm. For example, the length of the threaded portion is 5.4mm, 6.2mm or 8 mm.

In some embodiments, the thread has a groove depth of 0.35 mm.

In some embodiments, the thread has a pitch of 0.8 to 0.85 mm.

In some embodiments, the maximum width of the threaded portion is 2-2.05 mm.

In some embodiments, the distance from the bottom end of the shank to the first thread is 0.6 mm.

In some embodiments, the height of the connecting rod is 1.5-2.3 mm.

In some embodiments, a circular hole is provided on the stud, the circular hole extending to the interior of the connecting rod.

In some embodiments, the threads are right handed, reducing tooth decay.

The utility model discloses in, the surface of drawing the nail has carried out the processing of burring and acute angle abate.

The utility model discloses in, the tolerance precision grade of not living of drawing the nail is 8 grades.

The utility model discloses in, the stainless steel of drawing the nail is drawn H7 optical wand firmly and is greater than or equal to 260 HV.

In the utility model, the surface of the traction nail is treated by electrolysis.

The beneficial effects of the utility model reside in that:

the structure and the size of the traction nail can ensure that the thread is not too long to be suitable for Asians, and can also ensure that the engaging force is not influenced by the adjustment of the thread size. Nor is it embedded by soft tissue because the nut is too small.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a traction nail for jaw ligation provided in the embodiment.

Fig. 2 is a schematic view showing the structure of the head of the jaw-ligated traction nail in the example.

FIG. 3 is a schematic structural view of a threaded portion in an embodiment.

Fig. 4 is a schematic view showing the application state of the traction nail in the jaw ligation in the embodiment.

The reference numerals in the figures are respectively: the traction nail comprises a traction nail 100, a nail body 10, a connecting rod 20, a nail head 30, a traction plate 11, a threaded part 12, a groove structure 21, a hole 111 and a round hole 31.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

It is to be noted that the term "comprising" is used herein to mean "including but not limited to". The terms first, second, third and the like are used merely as labels, and do not impose numerical requirements or an established order. Various embodiments of the invention may exist in a range of versions; it is to be understood that the description in the form of a range is merely for convenience and brevity and should not be construed as an inflexible limitation on the scope of the invention; accordingly, the described range descriptions should be considered to have specifically disclosed all the possible sub-ranges as well as individual numerical values within that range. For example, it is contemplated that the description of a range from 1 to 6 has specifically disclosed sub-ranges such as, for example, from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as individual numbers within a range such as, for example, 1, 2, 3, 4, 5, and 6, as applicable regardless of the range. In addition, whenever a numerical range is indicated herein, it is meant to include any number (fractional or integer) recited within the indicated range. The sizes and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Conversely, unless otherwise indicated, various sizes are intended to indicate the recited value and the range functionally equivalent to the recited value. For example, a disclosed size of "10 microns" refers to "about 10 microns". In this patent document, the drawings discussed below and the various embodiments used to describe the principles of the present disclosure are by way of illustration only and should not be construed in a limiting sense. Those skilled in the art will understand that the principles of the present invention may be implemented in any suitably arranged system. Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. Further, a terminal according to an exemplary embodiment will be described in detail with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements.

The utility model provides a nail that pulls of intermaxillary ligation, please refer to fig. 1 to 3, pull nail 100 and include a nail body 10, a connecting rod 20 and a pin fin 30, nail body 10 passes through connecting rod 20 with the pin fin 30 is connected.

In this embodiment, the shank 10 includes a pulling plate 11 and a threaded portion 12, and the pulling plate 11 is connected to the head 30 through the connecting rod 20.

In this embodiment, the width of the connecting rod 20 is smaller than the width of the nail head 30 and the traction plate 11 at the two ends, and the connecting rod 20, the nail head 30 and the traction plate 11 form a groove structure 21.

In this embodiment, the nail body 10 has a threaded portion 12, and the threaded portion 12 is provided with threads.

In this embodiment, the traction plate 11 is provided with a hole 111.

In the embodiment, the length of the traction nail 100 is 10.5-12.5 mm; for example, the length of the traction peg 100 is 10.5mm, 11.5mm, or 12.5 mm.

In the embodiment, the length of the nail body 10 is 7-8 mm; for example, the length of the nail body 10 is 7mm or 8 mm.

In this embodiment, the length of the threaded portion 12 is 5.4 to 8 mm. For example, the length of the threaded portion 12 is 5.4mm, 6.2mm or 8 mm.

In this embodiment, the groove depth of the thread is 0.35 mm. The thread pitch of the thread can be 0.8-0.85 mm.

In this embodiment, the maximum width of the threaded portion 12 is 2 to 2.05 mm.

In this embodiment, the distance from the bottom end of the nail body 10 to the first thread is 0.6 mm.

In this embodiment, the height of the connecting rod 20 is 1.5-2.3 mm.

In this embodiment, a circular hole 31 is formed on the nail head 30, and the circular hole 31 extends to the inside of the connecting rod 20.

The screw thread is right-handed, and the tooth decay phenomenon is reduced. The surface of the traction nail 100 is subjected to deburring and acute dulling. The surface of the traction nail is subjected to electrolytic treatment. The loose tolerance precision grade of the traction nail is 8 grade. The stainless steel hard drawing H7 light bar of the traction nail is more than or equal to 260 HV.

The utility model discloses the nail that pulls of middlemorrhagic ligature can be applied to: when the surgery involves a change in the relative positions of the maxilla and mandible, and involves a holding or changing of the occlusal relationship, a ligature between the jaws is required.

The embodiment also provides the practical application of the traction nail in jaw ligation. When the operation needs jaw ligation, use the jaw ligation traction nail of this application to change upper and lower jaw relative position or occlusal relation. The traction nail has the following specific use flow:

referring to fig. 4, the alveolar bone of the root between the upper right first molar and the second premolar; root alveolar bone between the upper right canine tooth and the lateral incisor; a root alveolar bone between the lower right first molar and the second premolar; root alveolar bone between right lower canine tooth and lateral incisor; a root alveolar bone between the upper left first molar and the second anterior molar, and a root alveolar bone between the upper left canine and the lateral incisor; a root alveolar bone between the left lower first molar and the second anterior molar; root alveolar bone between the left lower canine tooth and the lateral incisor; and respectively implanting 8 traction nails 100 at the 8 target positions. The screw part 12 of the traction nail 100 is screwed into the above-mentioned target position, and then, during or after the operation, a corresponding wire or rubber band may be wound around the hole 111 or the connection rod 20 to perform inter-jaw ligation or elastic traction to maintain or obtain the target occlusal relationship. In addition, the head of the traction pin 100 has a sufficient length to ensure that it is not covered by the oral mucosa.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The traction nail for the ligation between the jaws is characterized in that the traction nail (100) comprises a nail body (10), a connecting rod (20) and a nail head (30), wherein the nail body (10) is connected with the nail head (30) through the connecting rod (20);

the nail body (10) comprises a traction plate (11) and a threaded part (12), and the traction plate (11) is connected with the nail head (30) through the connecting rod (20);

the width of the connecting rod (20) is smaller than the width of the nail head (30) and the width of the traction plate (11) at two ends, and the connecting rod (20), the nail head (30) and the traction plate (11) form a groove structure (21);

the nail body (10) is provided with a thread part (12), and the thread part (12) is provided with threads.

2. Traction nail according to claim 1, characterized in that said plate (11) is provided with a hole (111).

3. The tow nail according to claim 1, characterized in that the length of the tow nail (100) is 10.5-12.5 mm.

4. Traction nail according to claim 1, characterized in that the shank (10) has a length of 7-8 mm.

5. The draw pin according to claim 1, characterized in that the length of the threaded portion (12) is 5.4-8 mm; the groove depth of the thread is 0.35 mm.

6. The traction nail according to claim 1 or 5, wherein the thread pitch of the thread is 0.8-0.85 mm.

7. Traction nail according to claim 1, characterized in that the maximum width of the threaded portion (12) is comprised between 2 and 2.05 mm.

8. Traction spike according to claim 1, characterized in that the distance from the bottom end of the spike body (10) to the first thread is 0.6 mm.

9. The tow nail according to claim 1, characterized in that the height of the connecting rod (20) is 1.5-2.3 mm.

10. A towing pin according to claim 1, characterized in that the head (30) is provided with a circular hole (31), said circular hole (31) extending to the inside of the connecting rod (20).