Oral cavity separation instrument taking-out device under visual navigation system

Abstract

The invention provides an oral cavity separation instrument taking-out device under a visual navigation system. The oral cavity separation instrument taking-out device comprises a cutting ultrasonic working tip, a grabbing ultrasonic working tip and a taking-out component. The cutting ultrasonic working tip is tubular, internal threads are formed on the inner circumference of the upper end of the cutting ultrasonic working tip, and a conical tube part is formed on the lower portion of the cutting ultrasonic working tip. The upper end of the cutting ultrasonic working tip is combined to an ultrasonic handle through internal threads of the cutting ultrasonic working tip; the grabbing ultrasonic working tip comprises an outer pipe component and a push rod component; the outer pipe component is in a circular pipe shape, internal threads are formed on the inner circumference of the upper end of the outer pipe component, and a conical pipe part is formed at the lower part; an L-shaped notch is formed in the side wall of the outer pipe component; the lower part of the outer pipe component divides the conical pipe part into three clamping jaws through three linear notches; the push rod component is mounted in the outer pipe component; a combination part protruding outwards is formed at the upper end of the outer pipe component; by rotating the taking-out component, the grabbing ultrasonic working tip is driven to rotate, the separation instrument is driven to rotate together, and therefore the separation instrument is screwed out of the root canal.

Description

Technical Field

[0001] The present application relates to an oral appliance, and more particularly to an oral separation appliance removal device under a visual navigation system. Background Art

[0002] In daily oral treatment, teeth need root canal treatment due to toothache and other reasons. Root canal files are needed during root canal treatment. Due to the narrowness, curvature, calcification and fatigue of the root canal file, the root canal file often breaks in the root canal, which is called instrument separation. How to remove the separated instrument is a major clinical problem. The trephine used in the current separation instrument removal device is used on the oral high-speed air turbine mobile phone, and its rotation speed can reach 300,000 RPM. During clinical use, it is difficult to be completely parallel to the long axis of the broken instrument, which is very easy to cause perforation of the root canal wall, so the clinical popularity rate is extremely low. In addition, when removing the separation instrument, the general method is to pull it out. However, the broken root canal file is a threaded instrument. The root canal file rotates clockwise when entering the root canal. When it breaks, the thread is often stuck in the root canal. If it is to be removed, it is difficult to remove it by linear grasping. It is necessary to use ultrasonic equipment to loosen the separation instrument in advance to release the stuck relationship before it can be removed. However, in the process of using the ultrasonic working tip to loosen the separation instrument, it is difficult for the ultrasonic working tip to maintain contact with the separation instrument alone, and it is inevitable that the surrounding root canal wall will be cut. This is also one of the common causes of root canal wall perforation when removing the separation instrument. In addition, since the contact area between the ultrasonic working tip and the separation instrument is small and uneven, secondary fracture of the separation instrument also occurs from time to time. Summary of the invention

[0003] In view of the above problems, the present application aims to propose an oral separation instrument removal device under a visual navigation system, which can rotate the separation instrument out of the root canal by reverse rotation after grasping the upper end of the separation instrument.

[0004] The oral separation instrument removal device under the visual navigation system of the present application comprises: a cutting ultrasonic working tip, a grasping ultrasonic working tip, and a removal component; The cutting ultrasonic working tip is formed into a tubular shape, with an internal thread formed on the inner circumference of the upper end thereof and a tapered tube portion formed at the lower portion thereof; the upper end of the cutting ultrasonic working tip is used to be coupled to the ultrasonic handle through its internal thread; the lower end of the cutting ultrasonic working tip is used to cut the root canal wall at the upper end of the separation instrument to form a gap; The grabbing ultrasonic working tip comprises an outer tube component and a push rod component; the outer tube component is formed into a circular tubular shape, an inner thread is formed on the inner circumference of the upper end thereof, and a tapered tube portion is formed at the lower part thereof; the upper end of the outer tube component is used to be connected to the ultrasonic handle through its inner thread after the cutting ultrasonic working tip is separated from the ultrasonic handle; an L-shaped incision is formed on the side wall of the outer tube component; the lower part of the outer tube component divides the tapered tube portion into three claws through three straight line incisions, and the three claws are used to be inserted into the gap and clamped at the upper end of the separation instrument; the push rod component is installed in the outer tube component; a transverse extension rod is formed at the upper end of the push rod component, and a The outer tube member has a ball head; the transverse extension rod extends from the L-shaped cutout to the outside; when the transverse extension rod of the push rod member slides from the upper end to the lower end along the L-shaped cutout, the ball head moves downward to open the three claws of the tapered tube portion, so as to facilitate the insertion of the upper end of the separation device into the lower end of the tapered tube portion; when the transverse extension rod of the push rod member slides from the lower end to the upper end along the L-shaped cutout, the ball head moves upward to break away from the support of the three claws, and the three claws shrink toward the center of the tapered tube portion under the action of their own elastic force, so as to clamp the upper end of the separation device between the three claws; a joint portion protruding outward is formed at the upper end of the outer tube member; A coupling hole is formed at the lower end of the removal member, which is used to couple to the coupling portion at the upper end of the outer tube member of the grasping ultrasonic working tip after the grasping ultrasonic working tip is separated from the ultrasonic handle, thereby driving the grasping ultrasonic working tip to rotate by rotating the removal member, driving the separation instrument to rotate together, thereby rotating the separation instrument out of the root canal; The ultrasonic handle is operated under the visual navigation system.

[0005] Preferably, inwardly protruding teeth are formed on the inner circumferential surface of the claw.

[0006] Preferably, the outer contour of the cross section of the joint portion at the upper end of the outer tube member is a regular hexagon.

[0007] Preferably, a first operating portion protruding outward is formed on the outer peripheral surface of the upper portion of the taking-out member.

[0008] Preferably, the outer peripheral surface of the first operating portion is a rough surface or the outer contour of the cross section of the first operating portion is a regular hexagon.

[0009] Preferably, a plate-shaped second operating portion is formed at an end portion of the transversely extending rod of the push rod member.

[0010] Preferably, the lower end of the cutting ultrasonic working tip is formed into a frosted surface.

[0011] The oral separation instrument removal device under the visual navigation system of the present application fixes three claws on the upper end of the separation instrument and uses a removal member to screw the separation instrument out of the root canal. Different from the previous extraction method, the screwing out method of the separation instrument has very little impact on the root canal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of the oral separation instrument removal device under the visual navigation system of the present application.

[0013] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the cutting ultrasonic working tip of the oral separation instrument removal device under the visual navigation system.

[0014] Figure 3 for Figure 2 Schematic diagram of the main structure of the cutting ultrasonic working tip.

[0015] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of the cutting ultrasonic working tip.

[0016] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure of the grasping ultrasonic working tip of the oral separation instrument removal device under the visual navigation system.

[0017] Figure 6 for Figure 5 Schematic diagram of the main structure of the grabbing ultrasonic working tip.

[0018] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure of the grasping ultrasonic working tip.

[0019] Figure 8 for Figure 5 Schematic diagram of the three-dimensional structure of the outer tube component of the grasping ultrasonic working tip.

[0020] Fig. 9 for Figure 5 Schematic diagram of the three-dimensional structure of the push rod component for grabbing the ultrasonic working tip.

[0021] Fig.10 , 11 for Figure 1 Schematic diagram of the three-dimensional structure of the removal component of the oral separation instrument removal device under the visual navigation system.

[0022] Fig.12 It is a schematic diagram of the removal component and the grasping component combined together. DETAILED DESCRIPTION

[0023] Below, the oral separation instrument removal device under the visual navigation system of the present application is described in detail with reference to the accompanying drawings.

[0024] The oral separation instrument removal device under the visual navigation system of the present application includes: a cutting ultrasonic working tip 1, a grasping ultrasonic working tip 2, and a removal component 3.

[0025] The cutting ultrasonic working tip 1 is tubular, with an internal thread formed on the inner circumference of its upper end 1a, and a tapered tube portion formed at its lower portion 1b; the upper end 1a of the cutting ultrasonic working tip 1 is used to be coupled to the ultrasonic handle through its internal thread; the lower end 1c of the cutting ultrasonic working tip 1 is used to cut the root canal wall at the upper end of the separation instrument to form a gap.

[0026] The lower end 1c of the cutting ultrasonic working tip may be formed into a frosted surface. The inner cavity 1d of the lower end of the cutting ultrasonic working tip may be connected with the upper end to facilitate the passage of water, and the water flow is used to cool down the root canal wall when cutting.

[0027] The grabbing ultrasonic working tip includes an outer tube member 2 and a push rod member 3; the outer tube member 2 is formed into a circular tube shape, an inner thread is formed on the inner circumference of its upper end 2e, and a tapered tube portion 2a is formed at its lower part; the upper end 2e of the outer tube member 2 is used to be connected to the ultrasonic handle through its internal thread after the cutting ultrasonic working tip 1 is separated from the ultrasonic handle; an L-shaped cutout 2d is formed on the side wall of the outer tube member 2; the lower part of the outer tube member 2 is divided into three claws 2f by three straight line cuts 2b, and the three claws 2f are used to be inserted into the gap formed by the cutting ultrasonic working tip and clamped at the upper end of the separation instrument; the push rod member 3 is installed in the outer tube member 2; the push rod member 3 includes a columnar main body portion 3a, a transverse extension rod 3d is formed at the upper end of the main body portion 3a, and a ball head 3b is formed at the lower end of the main body portion 3a; the transverse extension rod 3d extends from the L-shaped cutout 2d to the outside; the end of the transverse extension rod 3d of the push rod member 3 is formed with a plate-shaped second operating portion 3c. When the lateral extension rod 3d of the push rod member 3 slides from the upper end to the lower end along the L-shaped cutout 2d, the ball head 3b moves downward to open the three claws 2f of the tapered tube portion, so as to facilitate the insertion of the upper end of the separation device into the lower end of the tapered tube portion; when the lateral extension rod 3d of the push rod member 3 slides from the lower end to the upper end along the L-shaped cutout 2d, the ball head 3b moves upward to break away from the support of the three claws 2f, and the three claws 2f shrink toward the center of the tapered tube portion 2a under the action of their own elastic force, thereby clamping the upper end of the separation device between the three claws 2f; the inner circumferential surface of the claw 2f is formed with an inwardly protruding tooth 2g, which can be a triangular tooth with its tip facing inward. The upper end of the outer tube member 2 is formed with an outwardly protruding joint 2c. The outer contour of the cross section of the joint 2c at the upper end of the outer tube member 2 is a regular hexagon, that is, an outer hexagon.

[0028] A coupling hole 4a is formed at the lower end of the removal member 4, and the coupling hole 4a can be an inner hexagonal shape, and is used to be coupled to the coupling portion 2c at the upper end of the outer tube member of the grasping ultrasonic working tip after the grasping ultrasonic working tip is separated from the ultrasonic handle. Therefore, by rotating the removal member 4, the grasping ultrasonic working tip is driven to rotate, and the separation instrument is driven to rotate together, thereby rotating the separation instrument out of the root canal.

[0029] The ultrasound handle is operated under a visual navigation system.

[0030] A first operating portion 4b protruding outward is formed on the outer circumference of the upper portion of the taking-out member 4. The outer circumference of the first operating portion 4b is a rough surface or the outer contour of the cross section of the first operating portion is a regular hexagon to facilitate the rotation operation.

[0031] When using, the first step is to connect the upper end of the ultrasonic handle to the visual navigation system. Under the guidance of the visual navigation system, place the cutting ultrasonic working tip at the end of the separation instrument, turn on the ultrasonic device, and accurately cut the root canal wall around the separation instrument to the appropriate position. Remove the cutting ultrasonic working tip.

[0032] The second step is to install the grasping ultrasonic tip on the ultrasonic handle, connect the navigation system through the ultrasonic handle, and accurately place the tip to the root canal wall position cut in the first step under the positioning of the navigation system, push it upward to the push rod component, retract the three claws at the bottom, grasp the blade interval of the separation instrument, turn on the ultrasonic device after it is in place, and loosen the separation instrument from the root canal wall below through ultrasonic force. Then, remove the ultrasonic handle and keep the grasping ultrasonic tip on the separation instrument.

[0033] The third step is to install the removal component onto the joint of the grasping ultrasonic working tip, and operate the removal component to rotate so that the separation instrument rotates counterclockwise in the root canal, thereby being rotated out of the root canal.

[0034] The oral separation instrument removal device under the visual navigation system of the present application determines the root canal morphology through dental CT, cooperates with the navigation system to accurately locate the position of the instrument separation, and accurately cuts the root canal wall. After shaking the separation instrument loose, it is twisted out counterclockwise; the prior art directly pulls out the separation instrument after vibration, which requires a large interval between the separation instrument and the root canal, and requires a longer and larger vibration. In the present application, a much smaller vibration is required in a shorter time, and it is only necessary to release the clamping relationship between the separation instrument and the root canal, which can greatly reduce the occurrence of complications such as root canal wall perforation during the removal of the separation instrument.

Claims

1. An oral cavity separation device removal device under a visual navigation system, comprising: Cutting ultrasonic working tips, grabbing ultrasonic working tips, and removing components; The cutting ultrasonic working tip is formed into a tubular shape, with an internal thread formed on the inner circumference of the upper end thereof and a tapered tube portion formed at the lower portion thereof; the upper end of the cutting ultrasonic working tip is used to be coupled to the ultrasonic handle through its internal thread; the lower end of the cutting ultrasonic working tip is used to cut the root canal wall at the upper end of the separation instrument to form a gap; The grabbing ultrasonic working tip comprises an outer tube component and a push rod component; the outer tube component is formed into a circular tubular shape, an inner thread is formed on the inner circumference of the upper end thereof, and a tapered tube portion is formed at the lower part thereof; the upper end of the outer tube component is used to be connected to the ultrasonic handle through its inner thread after the cutting ultrasonic working tip is separated from the ultrasonic handle; an L-shaped incision is formed on the side wall of the outer tube component; the lower part of the outer tube component divides the tapered tube portion into three claws through three straight line incisions, and the three claws are used to be inserted into the gap and clamped at the upper end of the separation instrument; the push rod component is installed in the outer tube component; a transverse extension rod is formed at the upper end of the push rod component, and a The outer tube member has a ball head; the transverse extension rod extends from the L-shaped cutout to the outside; when the transverse extension rod of the push rod member slides from the upper end to the lower end along the L-shaped cutout, the ball head moves downward to open the three claws of the tapered tube portion, so as to facilitate the insertion of the upper end of the separation device into the lower end of the tapered tube portion; when the transverse extension rod of the push rod member slides from the lower end to the upper end along the L-shaped cutout, the ball head moves upward to break away from the support of the three claws, and the three claws shrink toward the center of the tapered tube portion under the action of their own elastic force, so as to clamp the upper end of the separation device between the three claws; a joint portion protruding outward is formed at the upper end of the outer tube member; A coupling hole is formed at the lower end of the removal member, which is used to couple to the coupling portion at the upper end of the outer tube member of the grasping ultrasonic working tip after the grasping ultrasonic working tip is separated from the ultrasonic handle, thereby driving the grasping ultrasonic working tip to rotate by rotating the removal member, driving the separation instrument to rotate together, thereby rotating the separation instrument out of the root canal; The ultrasonic handle is operated under the visual navigation system.

2. The oral cavity separation device removal device under the visual navigation system according to claim 1, characterized in that: The inner circumferential surface of the claw is formed with inwardly protruding teeth.

3. The oral cavity separation device removal device under the visual navigation system according to claim 1, characterized in that: The outer contour of the cross section of the joint portion at the upper end of the outer tube member is a regular hexagon.

4. The oral cavity separation device removal device under the visual navigation system according to claim 1, characterized in that: A first operating portion protruding outward is formed on the outer peripheral surface of the upper portion of the taking-out member.

5. The oral cavity separation device removal device under the visual navigation system according to claim 4, characterized in that: The outer peripheral surface of the first operating portion is a rough surface or the outer contour of the cross section of the first operating portion is a regular hexagon.

6. The oral cavity separation device removal device under the visual navigation system according to claim 1, characterized in that: A plate-shaped second operating portion is formed at an end portion of the laterally extending rod of the push rod member.

7. The oral cavity separation device removal device under the visual navigation system according to claim 1, characterized in that: The lower end of the cutting ultrasonic working tip is formed into a frosted surface.

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