CN115252182A

CN115252182A - Orthodontic ligature wire torsion module

Info

Publication number: CN115252182A
Application number: CN202210846648.5A
Authority: CN
Inventors: 田静华; 毛陆麒; 胡致远
Original assignee: Beijing Kubo Innovation Science & Technology Co ltd
Current assignee: Beijing Kubo Innovation Science & Technology Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-11-01

Abstract

The invention provides a torsion module of an orthodontic ligature wire, which can be matched with a needle holder for use and comprises a static sleeve, a rotary sleeve and a mandrel with a spiral guide rail, wherein the rotary sleeve and the mandrel with the spiral guide rail are utilized to move relatively, so that the rotary sleeve rotates relative to the static sleeve, the front end of the rotary sleeve is fixed with a handheld part of a ligature wire clamp, the ligature wire clamp is pushed to rotate, and a ligature wire in an orthodontic part is tied up, and a related tooth socket structure, such as a tooth socket part, is further fixed.

Description

Orthodontic ligature wire torsion module

Technical Field

The invention relates to the field of medical health, in particular to a ligature wire twisting module which can increase ligature speed and improve operation efficiency when a doctor ligates an orthodontic bracket by using a needle holder in an orthodontic operation.

Background

Orthodontics generally refers to orthodontic treatment, which is a broad range of treatments, and generally refers to a treatment process for correcting irregular tooth arrangement, abnormal tooth morphology, and abnormal tooth color by using oral techniques. The method for correcting the teeth comprises various methods such as resin veneering, porcelain teeth, orthodontics and the like, a treatment method is selected according to the actual condition of the teeth, the type of the dentognathic deformity and the like of an individual, each method has advantages and disadvantages, different people have preferences, and a scheme needs to be directly communicated with a doctor during examination to determine the scheme. The main points are functional correction and aesthetic correction.

Brackets, fig. 3, which are important components of the fixed orthodontic technique, are directly bonded to the surface of the crown with an adhesive, and an archwire applies various types of orthodontic forces to the teeth through the brackets 301, are required in orthodontic procedures (e.g., orthodontic braces). The bracket is made of stainless steel, biological ceramic or composite resin and mainly used for fixing the arch wire, so that the arch wire can better play a role, the correction force is transferred, the three-dimensional movement of the tooth is controlled, and the purpose of orthodontic correction is achieved.

Steel ligature wires 302 are used to connect the brackets to the archwire during bracket use, which is commonly done by rotating a needle holder (similar to a surgical forceps). During the rotary ligating action of the needle holder by a clinician, 10 to 20 times of rotary needle holder actions need to be repeated for each bracket, the repeated actions require about ten seconds during ligation of a single bracket, and more than 16 brackets need to be used on average for each patient. The doctor thus takes about three to five minutes to perform 160 to 320 rotations with the thumb, index and middle fingers during the ligation of each patient. Such a single rotation operation is performed for a long time many times, and the joint of the clinician is likely to be used excessively, which may cause damage to the joint. And the same action repeated many times may also affect the efficiency of the operation.

Therefore, the novel modularized ligation device can be provided, the needle holder is not required to be rotated for many times during ligation, and the possibility of joint injury of a clinician is reduced while the use of the needle holder is not influenced and the ligation of the needle holder used by the clinician is not changed. Meanwhile, in order to improve the ligation speed and the ligation efficiency, the novel modularized device can convert single motion into multi-circle rotation of the needle holder.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides an orthodontic ligature wire torsion module, wherein the torsion module is matched with a needle holder for use;

the torsion bar comprises a handheld part and a torsion part, wherein the handheld part is a hollow cylinder, and the torsion part penetrates through the handheld part;

the torsion part comprises a rotary sleeve, a rotary sleeve head, a rotary sleeve base and a mandrel with a spiral guide rail;

the rotating sleeve and the rotating sleeve head are both hollow annular cylinders; the rotating sleeve head, the rotating sleeve and the rotating sleeve base are sequentially connected to form a cylinder; the inner side of the rotating sleeve head is provided with a guide pillar; the core shaft with the spiral guide rail extends into the rotating sleeve, and the spiral guide rail is matched with the guide pillar;

the rotating sleeve base is provided with a limiting device matched with the handheld part; (for preventing the cylinder of the hand-held part from sliding off the rotating sleeve)

And a fixing device matched with the needle holder is arranged on the rotating sleeve base. (in order to allow the needle holder to be fixed on the torsion module and rotate along with the torsion part of the torsion module)

The needle holder is similar in construction to a surgical forceps in order to grip the ligature wire. The helical guide may also be a helical guideway.

Further preferably, in the orthodontic ligature wire twisting module, the guide post is a ball guide post.

Further preferably, in the orthodontic ligature wire twisting module, the spiral guide rail is a double-spiral guide rail, and the guide post is a double-guide post, which are set in a matching manner.

Further preferably, in the orthodontic ligature wire twisting module, a thumb ring is arranged at the tail end of the mandrel with the spiral guide rail.

Further preferably, in the orthodontic ligature wire twisting module, the stationary sleeve is provided with a ring device for clamping fingers.

Further preferably, in the orthodontic ligature wire twisting module, the fixing device is a quick-release device and comprises a quick-release bandage and a quick-release base, and the fixing device is connected with the rotary sleeve base in a buckling manner. The quick release device is conventional in the art.

Further preferably, in the orthodontic ligature wire twisting module, the limiting structure is provided in a stepped manner.

Further preferably, in the orthodontic ligature wire twisting module, the rotary sleeve head, the rotary sleeve and the rotary sleeve base are connected by a snap. Forming a complete rotating sleeve which can move relatively to the cylinder of the hand-held part.

Further preferably, in the orthodontic ligature wire twisting module, the rotating sleeve is provided with a limiting device of the mandrel with the spiral guide rail. The purpose is to prevent the mandrel from shaking axially in the rotating sleeve. The limiting technology belongs to the conventional technology in the field, for example, a limiting ring or a bearing or upper and lower buckling end covers are added, and the limiting ring is arranged on the end cover so as to fix the axial position of the mandrel.

Further preferably, in the orthodontic ligature wire twisting module, the limiting device of the mandrel with the spiral guide rail is an embedded limiting ring, and the inner diameter of the limiting ring is matched with the outer diameter of the mandrel with the spiral guide rail.

Further preferably, the rotating sleeve base and the rotating sleeve can be integrally connected and rotate together.

The hand-held part in the invention is preferably a cylinder, and is in a relatively immovable state when being held by a hand for use, and is called as a static sleeve. The rotating sleeve of the torsion part is also a cylinder, and belongs to a rotating state when being held by hand for use, and is called as a rotating sleeve.

The cylinder of the handheld part is limited by the shape and the mechanism arrangement of the rotating sleeve (comprising the rotating sleeve head and the limiting mechanism), so that the handheld part cannot be separated from the rotating sleeve easily, and the drawing and the technical thought can be used for obtaining the conclusion.

In a specific embodiment, the solution to the technical problem of the present invention is as follows: for convenient assembly, the specific rotating sleeve, the rotating sleeve base and the rotating sleeve head (the rotating sleeve part containing the guide column is also disassembled to be convenient for rotating and matching) of the rotating sleeve concept are disassembled, so the embodiment comprises a static sleeve (namely a handheld part), a rotating sleeve base (comprising a rotating sleeve base end cover and a rotating sleeve base body), a rotating sleeve head end cover (exerting an axial limiting effect), a double-helix guide rail mandrel base, a ball head guide column and a quick-release bandage (fixing device).

The invention is a three-layer nested structure, the inner layer is a double-helix guide rail mandrel, the top end of the mandrel is provided with a finger holding ring (thumb ring), and the bottom is fixed and limited by a double-helix guide rail mandrel base. The intermediate level is changeed the cover, changes the cover top and is connected with changeing the cover head, changes to contain the bulb guide pillar in the cover head, fixes through changeing the first end cover of cover, changes the cover bottom and connects and change the cover base, and there is the quick detach bandage base inside the base. The outermost layer is a static sleeve (handheld part), the bottom of the static sleeve is connected with a rotary sleeve base, and the top of the static sleeve is limited through a rotary sleeve head.

The disposable orthodontic ligature wire torsion module used based on the needle holder needs to be connected with the needle holder and cannot be used independently. The quick-release belt in the rotating sleeve base is fixed with the needle holder handle, when the needle holder is opened, the quick-release belt is released, and when the needle holder is closed, the quick-release belt is tightened. Can go into two finger cover intra-rings of quiet cover (handheld portion) with forefinger and well dactylotheca this moment, the thumb embolias in the finger grip ring (thumb ring) on double helix guide rail dabber top, the thumb reciprocates and makes the inside reciprocating motion of double helix guide rail dabber at swivel cover and quiet cover, because there is double helix guide rail groove double helix guide rail dabber surface, the bulb post can produce the rotary motion who uses double helix guide rail dabber as the axle at double helix guide rail inslot, thereby drive swivel cover head, swivel cover and swivel cover base an organic whole intermediate level are rotatory, the rotary motion in intermediate level can drive the quick detach bandage rotation again, thereby realize the rotary motion of needle holder, accomplish the ligature action.

Advantageous effects

The invention overcomes the following defects caused by the ligation process in the existing orthodontic operation: slow ligation speed, low efficiency, too many repetitive actions of a clinician and the problem that the finger joint does the same action for a long time.

Drawings

In order to more clearly illustrate the technical scheme of the disposable orthodontic ligature wire twisting module used based on the needle holder, the following briefly introduces the drawings needed to be used and described in the specific embodiments and technical schemes.

Fig. 1 is an overall structural view of a disposable orthodontic ligature wire twisting module used based on a needle holder according to the present invention;

fig. 2 is an exploded view of a disposable orthodontic ligature wire torsion module used with a needle holder in accordance with the present invention;

fig. 3 is a schematic view of the use process of the disposable orthodontic ligature wire torsion module based on the needle holder.

Wherein 1-double helix guide rail core shaft; 2-turning the sleeve head end cover; 3-ball head guide post; 4-turning the sleeve head; 5-static sleeve; 6-rotating the sleeve base; 7-quick-release binding band; 8-quick-release base; 9-rotating the sleeve; 101-thumb ring; 102-double spiral guide rail grooves; 301-bracket; 302-ligature wire; 303-needle holder; 501-middle finger ring.

Detailed Description

In order to make the purpose, technical scheme and points of the invention more clear. The technical solution of the present invention will be described in detail below. All other technical solutions which can be obtained by a person skilled in the art without creative efforts based on the description of the present invention belong to the protection scope of the present invention.

The disposable orthodontic ligature wire twisting module based on the needle holder is structurally divided into three layers from inside to outside. In the embodiment, the rotating sleeve is disassembled for convenient assembly, and the rotating sleeve concept in the technical scheme comprises a series of static removing sleeves 5 (handheld parts) such as a rotating sleeve head 4, a rotating sleeve 9, a rotating sleeve base 6 and the like and a part of the double-spiral guide rail mandrel 1.

For the sake of better intuition, the following description will be made with the axial direction of the double-spiral guide spindle 1 as the central axis and the direction from the double-spiral guide spindle 1 to the rotating sleeve base 8 as the positive direction of the central axis.

The first layer is the innermost layer and the action is performed in a reciprocating motion along the central axis. The first layer comprises a double helix rail mandrel 1. Wherein the double-helix guide rail mandrel 1 also comprises a thumb ring 101 and a double-helix guide rail groove 102. When in operation, a thumb is sleeved into the thumb ring 101 and moves up and down to drive the double-helix guide rail mandrel 1 to reciprocate along the central shaft.

The second layer is an intermediate layer, the completed action is the rotation movement around the central shaft, and the second layer comprises a rotating sleeve head end cover 2; a ball head guide post 3; a sleeve turning head 4; a rotating sleeve base 6; a quick-release binding band 7; a quick-release base 8 and a rotary sleeve 9. The double-helix guide rail core shaft is limited by the embedding of the sleeve rotating head end cover 2 and the sleeve rotating head 4, the ball head guide pillar 3 is positioned on the inner wall of the sleeve rotating head 4, the sleeve rotating head 4 and the sleeve rotating 9 are buckled, the sleeve rotating 9 and the sleeve rotating base 6 (which can limit the static sleeve 5) are buckled and connected, and the sleeve rotating base 6 is provided with a quick-release bandage 7 and a quick-release base 8. The rotating sleeve head 4 or the rotating sleeve 9 can limit the upper end of the static sleeve 5 through the shape, so that the static sleeve 5 is prevented from being separated.

During operation, the ball head of the ball head guide post 3 is embedded in the double-spiral guide rail groove 102 of the double-spiral guide rail mandrel 1.

When a thumb is pressed along the positive direction of the central shaft, the ball guide post 3 can be limited by the rotating sleeve head 4 (the limiting position that the ball guide post 3 deforms downwards is arranged in the rotating sleeve head 4, such as a step design, see fig. 2), and the ball guide post cannot deform, so that the double-spiral guide rail groove 102 can receive the lateral force given by the ball, and the ball guide post can receive the reaction force of the double-spiral guide rail groove 102 because the double-spiral guide rail mandrel 1 is not rotatable, so that the ball guide post rotates around the central shaft, and the rotating sleeve head 4 is driven; a sleeve head end cover 2; a rotating sleeve base 6; a quick-release binding band 7; the quick-release base 8 and the rotary sleeve 9 rotate.

When the thumb pulls along the opposite direction of the central shaft, the ball head of the ball head guide post 3 does not have any limit in the rotating sleeve head 4 along the opposite direction of the central shaft, so that the ball head can deform and is separated from the double-spiral guide rail groove 102, and at the moment, the middle layer does not have any action.

The main action of non-rotation during pressing, rotation and extraction is completed through the double-spiral guide rail groove 102 and the ball guide post 3.

In the middle layer rotating process, the quick-release binding band 7 ties the hand holding ring of the needle holder 303 in advance and drives the needle holder 303 to complete the rotating action so as to complete the ligation action.

The third layer is the outermost layer, which comprises a static sleeve 5, wherein, the two sides of the static sleeve are provided with middle finger rings 501. When in operation, the middle finger and the index finger need to be hooked on the middle finger ring 501, and the outermost layer has no action and only serves as a fixing function.

Claims

1. An orthodontic ligature wire twisting module is characterized in that the orthodontic ligature wire twisting module is matched with a needle holder for use;

the rotating sleeve base is provided with a limiting device matched with the handheld part;

and a fixing device matched with the needle holder is arranged on the rotating sleeve base.

2. The orthodontic ligature wire torsion module of claim 1, wherein the guide post is a ball guide post.

3. The orthodontic ligature wire torsion module of claim 1, wherein the helical guide is a double helical guide and the guide post is a double guide post configured to mate with each other.

4. The orthodontic ligature wire torsion module of claim 1, wherein the end of the mandrel with the helical track is provided with a thumb ring.

5. The orthodontic ligature wire torsion module of claim 1, wherein the cylinder of the hand piece is provided with finger gripping ring means.

6. The orthodontic ligature wire torsion module of claim 1, wherein the fixture is a quick release device comprising a quick release strap and a quick release base, the fixture being snap-fit to the swivel base.

7. The orthodontic ligature wire torsion module of claim 1, wherein the swivel head, the swivel and the swivel base are integrally formed.

8. The orthodontic ligature wire torsion module of claim 1, wherein the swivel head, the swivel and the swivel base are snap-fit connections.

9. The orthodontic ligature wire torsion module of claim 1, wherein the swivel head is provided with the stop device with the helical guide mandrel.

10. The orthodontic ligature wire twisting module of claim 9, wherein the retaining device is an in-line retaining ring having an inner diameter matching an outer diameter of the core shaft with the helical guide.