WO2022001913A1

WO2022001913A1 - Oral medical tool

Info

Publication number: WO2022001913A1
Application number: PCT/CN2021/102597
Authority: WO
Inventors: 余健文; 钟庭进; 胡双飞; 吉利; 喻薇
Original assignee: 广州欧欧医疗科技有限责任公司
Priority date: 2020-07-03
Filing date: 2021-06-28
Publication date: 2022-01-06
Also published as: CN113876445A

Abstract

An oral medical tool, comprising a housing (10) and a rotation mechanism disposed inside of the housing (10); the housing (10) comprises a turning head (11) and a handle (12); the rotation mechanism comprises a screwing member (20), a protection component, a transmission member (40) and a rotation element (50); the screwing member (20) drives the rotation element (50) to rotate by means of the transmission member (40), the protection component is connected to the transmission member (40), the rotation element (50) is placed at one end of the turning head (11), and the other end of the turning head (11) is connected to the handle (12); and when the rotation resistance of the rotation element (50) exceeds a threshold, the protection component enables the transmission member (40) to not rotate or disengages the transmission between the transmission member (40) and the rotation element (50). The protection component is provided in the rotation mechanism; when a screw or bolt that requires screwing has been tightened, if the screwing member (20) is rotated further, the rotation resistance that is encountered by the rotation element (50) will exceed the threshold; and the protection component can effectively avoid the scratching problem caused by friction between the transmission member (40) and the rotation element (50) after a screw or a bolt has been tightened, and can effectively extend the service life of the oral medical tool.

Description

an oral medical tool

technical field

The invention relates to the technical field of orthodontic appliances, in particular to an oral medical tool.

Background technique

In the process of oral treatment, it is often necessary to install or remove oral medical devices. For medical devices with threads, such as implant nails, bolts on orthodontic brackets, etc., screwing tools are required to install or remove them. First, because the treatment space of the oral cavity is very small, especially for the treatment of the patient's molars and other posterior teeth, due to the obstruction of the patient's cheeks and lips, it is difficult for the screw tools on the market to operate deeply into the oral cavity; second, because of the oral medical equipment The size of the orthodontic bracket is very small, especially the bolts on the orthodontic bracket (such as the traction/locking element disclosed in CN patent CN201620359475.4, the traction/locking set and the traction and locking element disclosed in the orthodontic bracket system), during the treatment process , the doctor will most likely need to hold the scope in one hand and operate the screwing tool with only one hand. In response to this problem, the applicant's prior application CN201910856108.3 discloses a screwing tool, which is suitable for use in an oral treatment environment and can meet the needs of a doctor to operate with one hand. However, after actual operation, it is found that when the screw or bolt is tightened, the screwing can only be stopped according to the operator's feeling, and the operator needs a certain reaction time. Applying force, this factor was not considered in the early design, so that the screwing tool may have the problem of scribing after tens of thousands of operations, and the service life of the screwing tool is lost. This application aims to provide a longer service life. tool.

SUMMARY OF THE INVENTION

In view of the above technical problems, the present invention provides an oral medical tool with a longer service life and less streaking.

The technical scheme adopted by the present invention to solve the technical problem is:

An oral medical tool includes a casing and a rotating mechanism arranged inside the casing, the casing includes a turning head and a handle, the rotating mechanism includes a screw member, a protection component, a transmission member and a rotating element, and the The screw member drives the rotation element to rotate through the transmission member, the protection assembly is connected with the transmission member, the rotation element is placed at one end of the turning head, and the other end of the turning head is connected to the In the handle, when the rotational resistance of the rotating element exceeds a threshold value, the protection assembly prevents the transmission element from rotating or releases the transmission between the transmission element and the rotating element. In the present application, a protection assembly is provided in the rotating mechanism. When the screw or bolt to be screwed has been tightened, the screw member continues to be rotated, and the rotational resistance encountered by the rotating element will exceed a threshold value. Through the protection assembly To prevent the transmission member from continuing to rotate or release the transmission mode of the transmission member and the rotating element, so that the transmission member and the rotating element will not wear out, which can effectively prevent the screw or bolt from being tightened. The wear problem caused by the friction between the transmission element and the rotating element can effectively prolong the service life of the oral medical tool. The screw member may be manually screwed or driven by a motor to rotate.

In some preferred embodiments, the handle is provided with a window that exposes the screw. A window is provided at the handle, from which the screw can be manually screwed.

In some preferred embodiments, the screw member, the transmission member and the handle are arranged coaxially.

In some other specific embodiments, the protection component includes a magnetic attraction component, and when the rotational resistance of the rotating element exceeds a threshold, the protection component drives the transmission member to the direction of the screw member under the action of magnetic force. When the direction moves, the transmission element releases the transmission with the rotating element. In order to make the oral medical tool suitable for different applications and to change the threshold value according to the purpose of use, the magnetic attraction component can be set as an adjustable suction force, such as the magnetic attraction piece of the magnetic attraction component. The movement can be adjusted manually, the magnetic suction sheet is connected with the adjustment piece, and the magnetic suction piece can be moved by moving the adjustment piece. Another example is that the magnetic suction piece of the magnetic suction assembly is pluggable and replaceable. A plug-in hole may be provided on the handle, so that the magnetic sheet of the magnetic assembly can be plugged and replaced.

In some other specific embodiments, the protection component is an elastic member, and when the rotational resistance of the rotating element exceeds a threshold value, the elastic member shrinks and drives the transmission member to move in the direction of the screwing member, so The transmission member releases the transmission with the rotating element. In order to make the oral medical tool suitable for different applications, so that the threshold value can be changed according to the purpose of use, the elastic member can be set to change the elastic deformation force, for example, the effective length of the elastic member can be set to Adjustable, the elastic piece is connected with the adjusting piece, and the effective length of the elastic piece can be adjusted by moving the adjusting piece.

In a further preferred embodiment, the protection assembly further includes a thorn wheel assembly, and both ends of the thorn wheel assembly are respectively connected with the transmission member and the elastic member. The thorn wheel assembly is a common mechanical structure, which is driven by static friction. When the rotational resistance encountered by the rotating element exceeds the threshold, the resistance is greater than the static friction force, so that the thorn wheel cannot drive the transmission member to rotate, that is, the The protection assembly prevents the screwing member from driving the transmission member. The cooperation of the thorn wheel assembly and the elastic member can better protect the transmission member.

In other specific embodiments, the protection component is a motor component, and when the rotational resistance of the rotating element exceeds a threshold value, the motor component stops the transmission member. The threshold can be adjusted by changing the resistance value of the motor assembly.

In some preferred embodiments, the transmission member and the rotating element are driven by tooth meshing.

In some preferred embodiments, the oral medical tool further comprises a locking member, one end of the locking member is connected with the protection assembly, and the locking member is used to prevent the protection assembly from functioning. The purpose of disposing the protection assembly is to avoid the wear of the connection between the transmission member and the rotating element if the screw is continued to be screwed after the screw has been tightened. However, when the screw needs to be loosened, that is, the screw member needs to be screwed in reverse, it is not desirable that the protection assembly prevents the rotation element from being driven to rotate due to the large screw resistance. Therefore, at this time, the lock is used. The stopper prevents the protective assembly from functioning, so that the screw can be loosened. If the protection assembly includes an elastic member, the locking member is connected with the elastic member; if the protection assembly includes a magnetic attraction assembly, the locking member is connected with a magnetic attraction piece.

In a further preferred embodiment, the other end of the locking member protrudes out of the handle, a locking gear is provided on the handle, and the other end of the locking member can be snapped into the locking gear . If the protection assembly includes an elastic piece, the locking piece is connected to the elastic piece, and after the locking piece is snapped into the locking gear, the elastic piece is in a compressed state, and the rotation element encounters the elastic piece. When the rotational resistance exceeds the threshold value, the elastic member will not contract further. If the protection assembly includes a magnetic attraction assembly, the locking member is connected to a magnetic attraction piece, and after the locking member is snapped into the locking gear position, the two magnetic attraction pieces cannot be attracted together.

In some preferred embodiments, the turning head is provided with a reinforcing structure.

In some preferred embodiments, the outer sidewall of the screw member is provided with anti-skid lines.

Beneficial effects of the present invention: The present application provides an oral medical tool, which includes a housing and a rotating mechanism arranged inside the housing, the housing includes a turning head and a handle, and the rotating mechanism includes a screw member, a protection assembly, a transmission part and a rotating element, the screwing part drives the rotating element to rotate through the transmission part, the protection assembly is connected with the transmission part, and the rotating element is placed at one end of the turning head, The other end of the turning head is connected to the handle, and when the rotational resistance of the rotating element exceeds a threshold value, the protection assembly prevents the transmission member from rotating or releases the transmission between the transmission member and the rotating element. In the present application, a protection assembly is provided in the rotating mechanism. When the screw or bolt to be screwed has been tightened, the screw member continues to be rotated, and the rotational resistance encountered by the rotating element will exceed a threshold value. Through the protection assembly To prevent the transmission member from continuing to rotate or to release the transmission between the transmission member and the rotating element, so that the transmission member and the rotating element will not rub against each other, which can effectively prevent the screws or bolts from being tightened. In the future, the problem of scribing caused by friction between the transmission member and the rotating element can effectively prolong the service life of the oral medical tool.

The present invention will be further described below with reference to the accompanying drawings and embodiments.

Description of drawings

FIG. 1 is a front view of the oral medical tool of Example 1. FIG.

FIG. 2 is an internal structural diagram of the oral medical tool of Example 1. FIG.

FIG. 3 is an exploded view of the structure of the oral medical tool of Example 1. FIG.

4 is an internal structural diagram of the oral medical tool of Example 2. FIG.

FIG. 5 is an exploded structural diagram of the oral medical tool of Example 2. FIG.

FIG. 6 is an internal structural diagram of the oral medical tool of Example 3. FIG.

FIG. 7 is an exploded structural diagram of the oral medical tool of Example 3. FIG.

detailed description

Example 1:

1-3, FIG. 1 is a front view of the oral medical tool of Embodiment 1, FIG. 2 is an internal structure diagram of the oral medical tool of Embodiment 1, and FIG. 3 is an exploded view of the structure of the oral medical tool of Embodiment 1, This embodiment provides an oral medical tool, including a housing 10 and a rotating mechanism provided inside the housing 10 , the housing 10 includes a crutch 11 and a handle 12 , specifically, the housing 10 includes Two upper casings 13 and lower casings 14 are fastened to each other. The rotating mechanism includes a screwing member 20, a protection assembly, a transmission member 40 and a rotating element 50. The protection assembly is connected with the transmission member 40 and can be It is a direct connection or an indirect connection. The screw member 20 drives the rotation element 50 to rotate through the transmission member 40, and the rotation element 50 is placed at one end of the turning head 11. The other end of the handle 12 is connected to the handle 12, the handle 12 is provided with a window 15, the window 15 exposes the screw member 20, and the screw member 20 can be rotated by applying force from the window 15. When the rotational resistance of the rotating element 50 exceeds a threshold value, the protection assembly prevents the transmission element 40 from rotating or releases the transmission between the transmission element 40 and the rotating element 50 . The turning head 11 is provided with a reinforcing structure to enhance the mechanical strength of the turning head 11 , and the outer side wall of the screwing member 20 is provided with anti-skid lines, which is convenient for the screwing operation.

The protection assembly includes an elastic member 30 and a shaft 31. Specifically, in this embodiment, the elastic member 30 is a spring, the elastic member 30 is sleeved on the shaft 31, and the screw member 20 is also sleeved On the shaft 31, the elastic member 30 is connected with the transmission member 40, the elastic member 30 can drive the transmission member 40 to move in the axial direction, the screw member 20 is a shaft sleeve, and the transmission The screw member 40 is coaxially disposed with the screw member 20 , and the screw member 20 can drive the transmission member 40 to rotate. The transmission element 40 and the rotating element 50 are driven by tooth meshing, and the rotating element 50 is arranged at one end of the turning head 11 , and the transmission element 40 is arranged in the handle 12 . 40 and the rotating element 50 form an included angle, when the screw or bolt to be screwed has been tightened, continue to rotate the screw 20, the rotational resistance encountered by the rotating element 50 will exceed the threshold, the The rotating element 50 will exert a reverse force on the transmission member 40, and the transmission member 40 will move towards the direction of the screw member 20 under the action of the reverse force, and then press the elastic member 30 to deform, The transmission with the rotating element 50 can be released by moving the transmission member 40 in the direction of the screwing member 20 . The transmission mode of the transmission member 40 and the rotating element 50 is released through the protection assembly, so that the transmission member 40 and the rotating element 50 will not be worn, which can effectively prevent the screws or bolts from being tightened. , the problem of scribing caused by friction between the transmission member 40 and the rotating element 50 can effectively prolong the service life of the oral medical tool.

When the screw is loosened, the rotational resistance received by the rotating element 50 may be relatively large at the beginning. At this time, it is not expected that the protection component will play a role, so that the screw cannot be removed. Therefore, it is necessary to allow the protection Component failed. To this end, the oral medical tool further includes a locking member 60 for preventing the protection assembly from functioning, and one end of the locking member 60 is connected with the protection assembly. In this embodiment, the locking member One end of the member 60 is connected with the elastic member 30 . The other end of the locking member 60 protrudes out of the handle 12 , the handle 12 is provided with a locking gear 16 , and the other end of the locking member 60 can be snapped into the locking gear 16 . Specifically, the handle 12 is provided with a through hole 17 , the other end of the locking member 60 protrudes from the through hole 17 , the through hole 17 is connected to the locking gear 16 , and the lock After the other end of the stopper 60 is locked into the locking gear 16 , the elastic member 30 is in a compressed state, the rotational resistance encountered by the rotating element 50 will exceed a threshold value, and a reverse force will be applied to the transmission member 40 , the elastic member 30 will not shrink further.

Example 2:

4-5, FIG. 4 is an internal structure diagram of the oral medical tool of Embodiment 2, and FIG. 5 is an exploded structural diagram of the oral medical tool of Embodiment 2. An oral medical tool, the difference is that: the protection assembly includes a thorn wheel assembly 32 . One end 33 of the thorn wheel assembly 32 is connected to the shaft 31 , and the other end 34 of the thorn wheel assembly 32 is connected to the transmission member 40 . The thorn wheel assembly 32 is a common mechanical structure, and is driven by static friction. When the rotational resistance encountered by the rotating element 50 exceeds a threshold value, the resistance is greater than the static friction force, so that the thorn wheel cannot drive the transmission member 40 to rotate. That is, the protection assembly prevents the screwing member 20 from driving the transmission member 40 .

Other structures are the same as those in Embodiment 1, and are not repeated here.

Example 3:

This embodiment provides an oral medical tool with basically the same structure as Embodiment 1. The difference lies in that: the protection assembly includes a shaft 31 and a magnetic attraction assembly, and the shaft 31 is connected with the transmission member 40, so The shaft 31 can drive the transmission member 40 to move in the axial direction. The magnetic suction assembly includes a first magnetic suction piece 35 and a second magnetic suction piece 36 , and the first magnetic suction piece 35 is fixedly connected with the handle 12 . During the normal screwing process of the oral medical tool, the first magnetic sheet 35 and the second magnetic sheet 36 are spaced apart, and the mutual attraction between them cannot make the second magnetic sheet 36 drive The transmission member 40 moves to a position where the first magnetic attraction piece 35 and the second magnetic attraction piece 36 are attracted. When the rotational resistance of the rotating element 50 exceeds the threshold, the rotating element 50 applies a reverse force to the transmission member 40 , and the acting force of the rotating element 50 and the suction force of the first magnetic sheet 35 act down, the second magnetic sheet 36 drives the transmission member 40 to move in the direction of the first magnetic sheet 35 to engage with the first magnetic sheet 35, and the transmission member 40 is released from the The transmission of the rotating element 50 is described.

The second magnetic sheet 35 is provided with a locking member 60, and one end of the locking member 60 is connected to the protection assembly. In this embodiment, one end of the locking member 60 is connected to the second The magnetic suction sheet 36 is connected, and the locking member 60 is used to prevent the protection component from functioning. The other end of the locking member 60 protrudes out of the handle 12 , the handle 12 is provided with a locking gear 16 , and the other end of the locking member 60 can be snapped into the locking gear 16 . Specifically, the handle 12 is provided with a through hole 17 , the other end of the locking member 60 protrudes from the through hole 17 , the through hole 17 is connected to the locking gear 16 , and the lock After the other end of the stopper 60 is locked into the locking position 16 , the second magnetic suction piece 36 is fixed and cannot move.

Example 4:

This embodiment provides an oral medical tool with basically the same structure as the first embodiment, the difference is that: the protection component is a motor component, and when the rotational resistance of the rotating element exceeds a threshold, the motor component makes The transmission element is stopped.

The present invention is not limited to the above-mentioned embodiments. If various changes or modifications of the present invention do not depart from the spirit and scope of the present invention, if these changes and modifications belong to the claims of the present invention and the equivalent technical scope, then the present invention also It is intended that these changes and variations are included.

Claims

An oral medical tool is characterized in that it includes a casing and a rotating mechanism arranged inside the casing, the casing includes a turning head and a handle, and the rotating mechanism includes a screw member, a protection component, a transmission member and a A rotating element, the screwing element drives the rotating element to rotate through the transmission element, the protection assembly is connected with the transmission element, and the rotating element is placed at one end of the turning head, and the other side of the turning head One end is connected to the handle, and when the rotational resistance of the rotating element exceeds a threshold value, the protection assembly prevents the transmission element from rotating or releases the transmission between the transmission element and the rotating element.
The oral medical tool of claim 1, wherein the handle is provided with a window, and the window exposes the screw member.
The oral medical tool according to claim 1, wherein the screw member, the transmission member and the handle are arranged coaxially.
The oral medical tool according to claim 1, wherein the protection component comprises a magnetic attraction component, and when the rotational resistance of the rotating element exceeds a threshold value, the protection component drives the transmission member to move towards the magnetic force under the action of the magnetic force. The direction of the screw member moves, and the transmission member releases the transmission with the rotation element.
The oral medical tool according to claim 1, wherein the protection component comprises an elastic member, and when the rotational resistance of the rotating element exceeds a threshold value, the transmission member moves in the direction of the screwing member and squeezes The elastic member is pressed for deformation, and the transmission member is released from the transmission with the rotating element.
The oral medical tool according to claim 5, wherein the protection assembly further comprises a thorn wheel assembly, and two ends of the thorn wheel assembly are respectively connected with the transmission member and the elastic member.
The oral medical tool according to claim 1, wherein the protection component is a motor component, and when the rotational resistance of the rotating element exceeds a threshold value, the motor component stops the transmission member.
The oral medical tool according to claim 1, wherein the transmission member and the rotating element are driven by tooth engagement.
The oral medical tool according to claim 1, wherein the oral medical tool further comprises a locking member, one end of the locking member is connected with the protection component, and the locking member is used to prevent the Protective components come into play.
The oral medical tool according to claim 9, wherein the other end of the locking member protrudes out of the handle, the handle is provided with a locking gear, and the other end of the locking member can be locked into the locked position.