CN111449774A

CN111449774A - Triangular prism shape anchorage nail

Info

Publication number: CN111449774A
Application number: CN202010418020.6A
Authority: CN
Inventors: 茹栋; 陈利华; 诸葛南山; 王国庆
Original assignee: Hangzhou Westlake Biomaterial Co ltd
Current assignee: Hangzhou Westlake Biomaterial Co ltd
Priority date: 2020-05-17
Filing date: 2020-05-17
Publication date: 2020-07-28

Abstract

The invention relates to the technical field of orthodontic micro anchorage nail products, in particular to a triangular prism-shaped anchorage nail. The invention aims to solve the technical problems of easy slipping and poor stability. In order to solve the technical problem, the invention provides a triangular prism-shaped anchorage nail which comprises an anchorage nail pulling head, wherein a fixing hole penetrating to the other side is formed in one side of the lower half end of the anchorage nail pulling head. Compared with hexagonal and regular tetragonal bodies, the three equal surfaces are used as prisms of accurate meshing surfaces, the multiple precision requirements and difficulty of machining of the meshing surfaces can be reduced, the meshing precision of the meshing surfaces of the anchorage nail and the torque tool is improved, the slipping phenomenon of the anchorage nail and the torque tool is avoided, the three equal surfaces of the prisms can better ensure the stability and reliability of the anchorage nail when the torque tool transmits torque compared with the hexagonal and regular tetragonal bodies, dense threads and sparse threads arranged on the screw body are tightly connected with bone tissues, and the stability of the anchorage nail is improved.

Description

Triangular prism shape anchorage nail

Technical Field

The invention relates to the technical field of orthodontic micro anchorage nail products, in particular to a triangular prism-shaped anchorage nail.

Background

The anchorage nail has simple structure, small volume, convenient implantation and removal, does not need to be provided with an oral and oral external device, can not cause unnecessary movement of other teeth when being used as anchorage, and is widely applied to orthodontic treatment, and the implantation process mainly comprises the following steps: firstly, making a mucosa incision with the length of several millimeters on a designed position, then, forming a guide hole on the exposed compact bone by using an adaptive drill, then, rotatably entering the micro anchorage nail from the guide hole, healing the wound after the implantation for about half a month, and finally, arranging an anchorage wire at the head or the neck of the anchorage nail for traction orthodontics.

The prior art has at least the following problems which are not solved: 1. the existing commonly used anchorage nail product is hexagonal and regular tetragonal from the shape of the torsion input meshing part, has higher requirement on the processing precision of the structure, is easy to have the problem of unstable torsion anchorage nail slip in the process of torsion tool transmission, and is inconvenient for orthodontic operation; 2. the current planting anchorage nail receives under the effect of torque force, has the trend that makes it take place rotary motion, and its initial stability receives the influence, bears horizontal force stability lower, and just abnormal operation time span is great, and stability is not enough can influence the performance of planting anchorage nail function, leads to anchorage nail to appear even that implant the partial phenomenon that becomes flexible or implant the partial inefficacy.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a triangular prism-shaped anchorage nail, which solves the problems of easy slipping and poor stability.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a triangular prism-shaped anchorage nail comprises an anchorage nail puller, wherein a fixing hole penetrating to the other side is formed in one side of the lower half end of the anchorage nail puller, and a prism body, a connector and a screw rod main body are fixedly connected to the bottom of the anchorage nail puller from top to bottom in sequence; the thread starting point at the bottom end of the screw main body corresponds to any vertex angle of the equilateral triangle of the prism along the axial direction of the screw main body.

Further preferably, the lateral section of the anchorage pin pulling head is of a T-shaped bolt structure, and the top of the anchorage pin pulling head is subjected to circular arc treatment.

Further preferably, the side section of the fixing hole is of a round-corner rectangular structure, and the fixing hole is located in the middle of the anchorage pin pulling head.

Further preferably, the side section of the prism is an equilateral triangle, and the corners of the prism are rounded.

Further preferably, the side section of the connecting body is a T-shaped structure, and the outer wall of the connecting body is subjected to circular arc treatment.

Preferably, the screw body is provided with dense threads and sparse threads in sequence from top to bottom, and the bottom end of the screw body is of a spike structure of the cork screw.

(III) advantageous effects

The invention provides a triangular prism-shaped anchorage nail, which has the following beneficial effects:

(1) compared with hexagonal and regular tetragonal plane bodies, the prism body with three equal surfaces as accurate meshing surfaces can reduce multiple precision requirements and difficulty of machining the meshing surfaces, improves the meshing precision of the meshing surfaces of the anchorage nails and the torque tools, reduces the size of the meshing tools and the like, and avoids the slipping phenomenon of the torque tools.

(2) The prism of three isoplanars compares in hexagonal and positive four corners physique and more can ensure anchorage nail more reliable and stable nature when torsion instrument transmission torsion, and the dense screw thread of seting up in the screw rod main part links up closely with the bone tissue with sparse screw thread, effectively improves the stability of planting anchorage nail, and the T type connector that does the circular arc simultaneously and handle can multiplicable and the area of contact of cortex of bone, has ensured later stage person's of wearing comfort, makes the stability of planting anchorage nail further improve.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a front view of the structure of the present invention;

fig. 3 is a top cross-sectional view of the inventive structure.

In the figure: 1. resisting the pin pulling head; 2. a fixing hole; 3. a prism; 4. a linker; 5. a screw body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a triangular prism shape anchorage nail, including anchorage nail puller head 1, anchorage nail puller head 1 comprises cylinder fixed connection disc, the side cross-section of anchorage nail puller head 1 is T type bolt structure, and the top of anchorage nail puller head 1 is the circular arc and is handled, smooth anchorage nail puller head 1 top can make the patient wear comparatively comfortablely, need not to add compound nut, one side of anchorage nail puller head 1 lower half is seted up and is run through fixed orifices 2 to the opposite side, the side cross-section of fixed orifices 2 is the rounded rectangle structure, and fixed orifices 2 is located the middle part of anchorage nail puller head 1, fixed orifices 2 can be used for the bolted connection various towed structures, and the rounded rectangle structure can effectually guarantee that the structure of towing used can not appear the displacement and rotate, be convenient for adaptation this kind of different traction operation mode, the bottom of anchorage nail puller head 1 from top to bottom fixedly connected with prism 3 in proper order, The square nail traction head comprises a connector 4 and a screw body 5, the radius of a prism 3 is larger than the radius of a cylinder at the lower half end of the anchorage nail traction head 1, a recessed structure is formed at one side of the lower half end of the anchorage nail traction head 1 opposite to the prism 3, the square nail traction head can be used for hooking different elastic traction ropes, rubber rings, spiral springs and other structures, the square nail traction head is convenient and rapid to use and is simple to operate, the side section of the prism 3 is an equilateral triangle, the thread starting point at the bottom end of the screw body 5 corresponds to any vertex angle of the equilateral triangle of the prism 3 along the axial direction of the screw body 5, the corner of the prism 3 is subjected to fillet treatment, the side section of the connector 4 is of a T-shaped structure, a unique cambered surface T-shaped structure is attached to the upper surface of a gum, the epithelial sprawling can be effectively prevented, the outer wall of the connector 4 is subjected to circular arc treatment, the bottom end of the screw rod main body 5 is of a screw tip structure of the screw cork puller, dense threads are trapezoidal spiral lines, surface sclerotin can be supported to the maximum degree, inevitable surface skin trauma during implantation can be made up, sparse threads are formed by side cutting, stress concentration during implantation can be prevented, the screw cork puller type screw tip can control the trauma area of an operation to the minimum degree, implantation is easy, and the narrow diameter at the bottom end can prevent root injury. Compared with hexagonal and square bodies, the three-equal-surface prism 3 with three equal surfaces as accurate meshing surfaces can reduce multiple precision requirements and difficulty of machining of the meshing surfaces, improve the meshing precision of the meshing surfaces of the anchorage nail and the torque tool, reduce the volume of the meshing tool and the like, avoid the slipping phenomenon of the three-equal-surface prism 3 with the torque tool, ensure more stable reliability of the anchorage nail when the torque tool transmits torque compared with the hexagonal and square bodies, and ensure that dense threads and sparse threads arranged on the screw body 5 are tightly connected with bone tissues, thereby effectively improving the stability of the implantation anchorage nail.

The working principle is as follows: firstly, a mucosa incision with the length of several millimeters is made at a designed position, then a guide hole is formed in an exposed compact bone by using an adaptive drill, the bottom end of a screw rod main body 5 is inserted into the guide hole, a torsion tool is sleeved on the outer wall of a prism body 3, the screw rod main body 5 is rotationally twisted into the arranged guide hole by the torsion tool, and a rubber ring or a spiral tension spring for orthodontics is sleeved at the lower half end of an anchorage nail traction head 1 at the later stage, or a traction structure for orthodontics can be bolted through a fixing hole 2, so that the moving force can be applied to teeth.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a triangular prism shape anchorage nail, includes anchorage nail tractive head (1), its characterized in that: a fixing hole (2) penetrating to the other side is formed in one side of the lower half end of the anchorage pin pulling head (1), and a prism (3), a connector (4) and a screw rod main body (5) are fixedly connected to the bottom of the anchorage pin pulling head (1) from top to bottom in sequence;

the side section of the prism (3) is an equilateral triangle, and the edges and corners of the prism (3) are rounded;

the thread starting point of the bottom end of the screw main body (5) corresponds to any vertex angle of the equilateral triangle of the prism body (3) along the axial direction of the screw main body (5).

2. The triangular prismatic anchorage nail according to claim 1, wherein: the lateral section of the anchorage pin traction head (1) is of a T-shaped bolt structure, and the top of the anchorage pin traction head (1) is subjected to circular arc treatment.

3. The triangular prismatic anchorage nail according to claim 1, wherein: the side section of the fixing hole (2) is of a round-corner rectangular structure, and the fixing hole (2) is located in the middle of the anchorage pin pulling head (1).

4. The triangular prismatic anchorage nail according to claim 1, wherein: the side section of the connecting body (4) is of a T-shaped structure, and the outer wall of the connecting body (4) is subjected to circular arc treatment.

5. The triangular prismatic anchorage nail according to claim 1, wherein: the screw rod main body (5) is sequentially provided with dense threads and sparse threads from top to bottom, and the bottom end of the screw rod main body (5) is of a nail tip structure of the screw cork extractor.