CN110974470B

CN110974470B - Positioning device for tooth treatment

Info

Publication number: CN110974470B
Application number: CN201911408892.8A
Authority: CN
Inventors: 王磊; 蔡玉奎; 张庆
Original assignee: Qilu Hospital of Shandong University
Current assignee: Foshan Shuya Dental Clinic Co.,Ltd.
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-07
Anticipated expiration: 2039-12-31
Also published as: CN110974470A

Abstract

The invention provides a positioning device for tooth treatment, and belongs to the technical field of medical equipment. The technical scheme is as follows: the laser light source has been set gradually on the base, concave lens and convex lens, the one end that the base is close to convex lens is provided with the baffle, be provided with the rectangle mouth on the baffle, the inboard left and right sides that just is located the rectangle mouth of baffle is provided with two-way screw rod one, the both ends of two-way screw rod one are provided with horizontal light screen, the outside of baffle and the upper and lower both sides that are located the rectangle mouth are provided with two-way screw rod two, the both ends of two-way screw rod two are provided with vertical light screen, still including the casing that is used for sealing the base, the one end of casing is provided with the logical light mouth with the size unanimity of rectangle mouth, the other end is provided with laser light source's. The invention has the beneficial effects that: the laser irradiates the area of the tooth needing to be prepared, so that the doctor can conveniently make reference in the treatment process.

Description

Positioning device for tooth treatment

Technical Field

The invention relates to the technical field of medical equipment, in particular to a positioning device for tooth treatment.

Background

Nowadays, people pay more and more attention to the health of teeth, and in the treatment process of dental diseases, the preparation of teeth is a common means. The tooth preparation refers to restoring, improving or reconstructing the anatomical shape and physiological function of the missing or lost tooth, and the dental appliances are used for removing decayed teeth and finishing the shape of the adjacent tooth of the affected tooth or the lost tooth so as to meet the technical operation required by the fixation, support, shape, beauty and function of the restoration, and different technical operations have different requirements on the tooth preparation amount of the incisal end, the labial surface, the lingual surface, the adjacent surface and the like of the restored tooth. At present, doctors basically look at and select according to tooth conditions, corresponding positioning measures are not provided in the actual operation process, the preparation of teeth is too deep, the teeth cannot be recovered after being ground, and the later treatment and the aesthetic degree after the treatment are affected.

Disclosure of Invention

The invention aims to provide a positioning device for tooth treatment, which irradiates a region of a tooth needing tooth preparation through a laser beam so as to facilitate reference of a doctor in a treatment process.

The invention is realized by the following measures: the positioning device for dental treatment is characterized by comprising a laser positioning mechanism, wherein the laser positioning mechanism comprises a base, a laser light source, a concave lens and a convex lens are sequentially arranged on the base, the laser light source, the concave lens and the convex lens are concentrically arranged, a baffle is arranged at one end, close to the convex lens, of the base, a rectangular opening is formed in the baffle, a first bidirectional screw is arranged on the inner side of the baffle and positioned on the left side and the right side of the rectangular opening through a bearing, two ends of the first bidirectional screw are provided with transverse light shielding plates through threaded connection, a first limiting rod is fixedly arranged on the baffle and positioned on any one side of the first bidirectional screw, and the two transverse light shielding plates are both sleeved on the first limiting rod;

a second bidirectional screw rod is arranged on the outer side of the baffle and positioned on the upper side and the lower side of the rectangular opening through bearings, two ends of the second bidirectional screw rod are provided with longitudinal light shielding plates through threaded connection, a second limiting rod is fixedly arranged on the baffle and positioned on any one side of the second bidirectional screw rod, and the two longitudinal light shielding plates are sleeved on the second limiting rod;

still including being used for sealing the casing of base, the one end of casing be provided with the unanimous logical light mouth of size of rectangle mouth, the other end is provided with laser light source's connecting hole, two-way screw rod one and arbitrary one end of two-way screw rod two all stretches out the casing just is provided with the adjusting knob, two-way screw rod is two sections screw threads and revolves to different screw rod constitutions.

And the shell is provided with graduated scales on the upper side and the left side of the light through port.

The diameter that the laser light source provided generally is 4mm the laser beam warp concave lens diverge with and convex lens gathers, and whole expansion is diameter 80 mm's parallel light beam, through adjusting two horizontal light screen and two the distance of vertical light screen changes the light beam scope of logical light mouth and then change the scope of shining on the tooth, realizes the mark in advance to the operating region, makes things convenient for the doctor to do the reference, and can also pass through reading realization comparatively accurate positioning on the scale.

In addition, because the laser beam is expanded into the parallel beam, the parallel beam can be used for measuring the width and the height of the tooth when vertically irradiating the surface of the tooth, and the non-contact measurement is realized instead of the traditional tooth measurement mode. The existing method for measuring the tooth width is to take a picture by a camera and then carry out image recognition to measure, so that the process is complex and time-consuming; or adopt contact slide caliper rule etc. and easily damage the gum, the circulation uses and has the infection risk.

Still including being used for adjusting laser positioning mechanism's adjustment mechanism, adjustment mechanism include the worm and with worm complex local turbine, the worm rotates to set up just be located on the casing the below both sides of connecting hole, the upper and lower both ends of local turbine all are provided with the sector plate with one heart, all be provided with fan-shaped annular plate with one heart on the sector plate, be provided with fan-shaped annular groove on the lateral wall of fan-shaped annular plate, just be located on the casing the upper and lower both sides of connecting hole all be provided with fan-shaped annular groove complex deflector, the tip of deflector be provided with the limiting plate that fan-shaped annular plate inner wall contacted is located the fixed bracing piece that is provided with of sector plate of turbine lower part, the bracing piece stretches into the center department of the below of casing, the both sides setting of bracing piece is on adjusting the seat. Because tooth overall distribution has the radian, conveniently adjusts like this the position of logical light mouth adopts the turbine worm in addition, and the worm is the initiative, conveniently realizes the auto-lock like this, guarantees the stability after the device is adjusted, is unlikely to under the condition that receives external force, changes the position.

The adjusting seat comprises a supporting plate, an outer loop bar is fixedly arranged on the supporting plate, an inner loop bar is inserted in the outer loop bar, a plurality of adjusting holes are formed in the inner loop bar and the outer loop bar, and the supporting bar is hinged to the top end of the inner loop bar;

the inner sleeve rod is fixedly provided with a horizontal rod under the supporting rod, the horizontal rod is hinged with a shell of an electric push rod, and the push rod of the electric push rod is hinged on the supporting rod. The above situation can only be applied to the use in the horizontal state, and in practice, when the teeth of a patient are inspected and operated, some situations need the user to lean on, so that the position of the light through opening can be adjusted through the electric push rod, and the projection in the vertical direction can be realized.

The lower center position of casing is fixed and is provided with the pole setting, the articulated direction ball that is provided with of lower extreme of pole setting, be provided with annular spout on the bracing piece, the direction ball sets up in the annular spout. The stability of the device during adjustment is guaranteed.

The light-transmitting device is characterized by further comprising a reflective mirror, a screw rod is arranged at the position, close to the middle of the light-transmitting opening, above the shell, a connecting rod is arranged on the screw rod through a nut, the connecting rod extends out of the shell, the reflective mirror is arranged on the reflective mirror, a second screw rod is arranged on the upper portion of one end of the reflective mirror, and the second screw rod is arranged on the connecting rod through a nut. This allows light to be projected onto the inner tooth by reflection from the mirror and to maintain as large a spot area as possible on the tooth.

The reflector can also be independently arranged, so that the adjustment of the later stage on the direction of the light beam is more convenient, and the use is more flexible.

When a doctor operates, the operating area can be determined by adjusting the spot area irradiated on the tooth by the light beam, and the reference can be carried out by observing light rays in operation, so that excessive abrasion to the tooth of a patient is prevented, excessive tooth tissue is damaged due to excessive tooth preparation, marrow exposure and tooth strength reduction are caused, and prosthesis retention is influenced.

The partial turbine, the sector plate, the sector ring plate and the sector ring groove are all larger than 180 degrees. This allows a large adjustment area to be maintained.

Compared with the prior art, the invention has the beneficial effects that: the area of the tooth, which needs to be prepared, can be irradiated by laser, so that a doctor can conveniently refer to the area in the treatment process, and the condition that the preparation amount of the tooth is too large is prevented; in addition, through the parallel light beams expanded by the concave lens and the convex lens, when the parallel light beams vertically irradiate the plane of the tooth under manual operation, the non-contact measurement of a single tooth can be realized; the angle of the light through opening can be conveniently adjusted and self-locking can be realized through the matching of the worm and the gear; the purpose of adjusting the direction of the whole device is realized through the arrangement of the electric push rod, and the device can be suitable for various working conditions; and the reflector is arranged, so that the use is more flexible.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic diagram of the internal structure of the laser positioning mechanism.

Fig. 4 is a schematic view of the internal structure of the laser positioning mechanism with a different angle from that of fig. 3.

Fig. 5 is a schematic view of the overall structure with a different angle from that of fig. 1.

Fig. 6 is a partially enlarged view of fig. 5 at B.

Fig. 7 is a schematic structural view of a related part of the housing.

Fig. 8 is a reference diagram of the usage state.

Fig. 9 is a reference diagram of the second use state.

Fig. 10 is a schematic diagram of laser beam expansion.

Wherein the reference numerals are: 1. a laser positioning mechanism; 2. an adjustment mechanism; 3. an adjusting seat; 4. an electric push rod; 101. a housing; 102. a light-through port; 103. a connecting rod; 104. a reflective mirror; 105. a graduated scale; 106. a base; 107. a concave lens; 108. a convex lens; 109. a baffle plate; 110. a rectangular opening; 111. a first bidirectional screw; 112. a transverse visor; 113. a first limiting rod; 114. a two-way screw rod II; 115. a longitudinal visor; 116. a second limiting rod; 117. a bearing; 118. a limiting plate; 119. erecting a rod; 120. a guide ball; 121. a guide plate; 201. a local turbine; 202. a sector plate; 203. a sector ring plate; 204. a fan-shaped ring groove; 205. a worm; 206. a motor; 207. connecting columns; 208. a support bar; 210. an annular chute; 301. a support plate; 302. an inner loop bar; 303. an outer loop bar; 401. an electric push rod housing; 402. a push rod.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

The first embodiment is as follows:

referring to fig. 1 to 9, a positioning device for dental treatment comprises a laser positioning mechanism 1, wherein the laser positioning mechanism 1 comprises a base 106, a laser light source 6, a concave lens 107 and a convex lens 108 are sequentially arranged on the base 106, the laser light source 6, the concave lens 107 and the convex lens 108 are concentrically arranged, one end of the base 106 close to the convex lens 108 is provided with a baffle plate 109, a rectangular opening 110 is formed in the baffle plate 109, a bidirectional screw rod I111 is arranged on the inner side of the baffle plate 109 and on the left side and the right side of the rectangular opening 110 through a bearing 117, two ends of the bidirectional screw rod I111 are provided with transverse light shielding plates 112 through threaded connection, any side of the bidirectional screw rod I111 on the baffle plate 109 is fixedly provided with a first limiting rod 113, and the two transverse light shielding plates 112 are both sleeved;

a second bidirectional screw 114 is arranged on the outer side of the baffle 109 and positioned at the upper side and the lower side of the rectangular opening 110 through a bearing 117, two ends of the second bidirectional screw 114 are provided with longitudinal light shielding plates 115 through threaded connection, a second limiting rod 116 is fixedly arranged on the baffle 109 and positioned at any side of the second bidirectional screw 114, and the two longitudinal light shielding plates 115 are sleeved on the second limiting rod 116;

the laser light source device further comprises a shell 101 used for sealing the base 106, one end of the shell 101 is provided with a light through port 102 which is consistent with the size of the rectangular port 110, the other end of the shell 101 is provided with a connecting hole of the laser light source 6, any one end of the first bidirectional screw 111 and any one end of the second bidirectional screw 114 extend out of the shell 101 and are provided with adjusting buttons 5, and the bidirectional screws are formed by two screw rods with different thread turning directions.

The housing 101 is provided with a scale 105 on the upper side and the left side of the light-transmitting opening 102.

The laser beam with the diameter of 4mm provided by the laser source 6 is diverged through the concave lens 107 and gathered through the convex lens 108, the whole laser beam is expanded into a parallel beam with the diameter of 80mm, the beam range of the light through port 102 is changed by adjusting the distance between the two transverse light shielding plates 112 and the two longitudinal light shielding plates 115, the range of the light irradiated on the tooth is changed, the operation area is marked in advance, the reference of a doctor is facilitated, and the accurate positioning can be realized through the reading on the graduated scale 105.

The principle of laser beam expansion is shown in FIG. 10, and the system has amplification factor

In this mechanism, the incident light source is assumed to have a diameter of 4mm, and needs to be expanded to a parallel beam with a diameter of 80mm, so the magnification is 20, and first, the focal length of the input mirror is determined to be f1, the focal length of the output mirror is f2=20f1, and the distance between the two lenses is L = f2-f1=19 f 1.

Still including being used for adjusting the adjustment mechanism 2 of laser positioning mechanism 1, adjustment mechanism 2 includes worm 205 and with worm 205 complex local turbine 201, worm 205 rotates and sets up on casing 101 and is located the below both sides of connecting hole, local turbine 201's upper and lower both ends all are provided with sector plate 202 through spliced pole 207 is concentric, sector plate 202 is last all to be provided with sector ring board 203 concentrically, be provided with sector ring groove 204 on sector ring board 203's the lateral wall, casing 101 is last and is located the upper and lower both sides of connecting hole and all is provided with deflector 121 with sector ring groove 204 complex, the tip of deflector 121 is provided with the limiting plate 118 that contacts with sector ring board 203 inner wall, the sector plate that is located the turbine 201 lower part is fixed and is provided with bracing piece 208, bracing piece 208 stretches into the center department of the below of casing 101, the both sides setting of bracing piece 208 is on. The worm is connected with a motor 206 with a speed reducer, manual driving can be adopted, the tooth overall distribution is radian, so that the position of the light through opening is convenient to adjust, in addition, the worm gear and the worm are adopted, the worm is active, so that self-locking is convenient to realize, the stability of the device after adjustment is ensured, and the position is not changed under the condition of external force.

The adjusting seat 3 comprises a supporting plate 301, an outer loop bar 303 is fixedly arranged on the supporting plate 301, an inner loop bar 302 is inserted in the outer loop bar 303, a plurality of adjusting holes are formed in the inner loop bar 302 and the outer loop bar 303 and are connected through bolts, and the supporting rod 208 is hinged to the top end of the inner loop bar 302;

a horizontal rod is fixedly arranged on the inner loop bar 302 and under the supporting rod 208, a shell 401 of the electric push rod 4 is hinged on the horizontal rod, and a push rod 402 of the electric push rod 4 is hinged on the supporting rod 208. The above situation can only be applied to the use in the horizontal state, and in practice, when the teeth of the patient are inspected and operated, some situations need the user to lean on, so that the position of the light-through port 102 can be adjusted by the electric push rod 4, and the projection in the up-and-down direction can be realized.

The center position of the lower part of the shell 101 is fixedly provided with a vertical rod 119, the lower end of the vertical rod 119 is hinged with a guide ball 120, the support rod 208 is provided with an annular chute 210, the guide ball 120 is arranged in the annular chute 210 to ensure the stability of the device during adjustment, and the guide ball 120 is preferably arranged in a ball hinge manner.

The LED lamp further comprises a reflective mirror 104, a screw is arranged above the shell 101 and close to the middle of the light through port 102, a connecting rod 103 is arranged on the screw through a nut, the connecting rod 103 extends out of the shell 101 to be provided with the reflective mirror 104, a second screw is arranged on the upper portion of one end of the reflective mirror 104, and the second screw is arranged on the connecting rod 103 through a nut. This allows light to be projected onto the inner tooth by reflection from the mirror 104 and maintains the spot area on the tooth as large as possible.

The reflector 104 can also be arranged independently, so that the adjustment of the beam direction at the later stage is more convenient, and the use is more flexible.

The partial turbine 201, sector plate 202, sector ring plate 203, and sector ring groove 204 are all greater than 180 degrees. This allows a large adjustment area to be maintained.

In this manner, when the width and height of the tooth are to be measured, the light beam can be positioned perpendicular to the tooth surface, and can be read directly through the graduation marks on graduation marks 105. When the tooth preparation is carried out, the proper direction is adjusted through the electric push rod 4 according to the position of the mouth of a patient, the light beam is enabled to face the position of the mouth, the proper irradiation angle is adjusted through the worm gear and the worm, the spot area irradiated on the tooth is as large as possible through the reflector 104, the spot area is reduced to the range for operation through adjusting the light shielding plates in two directions, and a doctor can carry out actual operation according to the range to avoid exceeding the spot area.

Example two:

referring to fig. 1, 3 and 4, a positioning device for dental treatment comprises a laser positioning mechanism 1, wherein the laser positioning mechanism 1 comprises a base 106, a laser light source 6, a concave lens 107 and a convex lens 108 are sequentially arranged on the base 106, the laser light source 6, the concave lens 107 and the convex lens 108 are concentrically arranged, a baffle 109 is arranged at one end of the base 106 close to the convex lens 108, a rectangular opening 110 is arranged on the baffle 109, a bidirectional screw rod I111 is arranged at the inner side of the baffle 109 and at the left side and the right side of the rectangular opening 110 through a bearing 117, two ends of the bidirectional screw rod I111 are provided with transverse light shielding plates 112 through threaded connection, a first limit rod 113 is fixedly arranged on any side of the first bidirectional screw rod 111 on the baffle 109, and the two transverse light shielding plates 112 are both sleeved on the first limit rod;

This embodiment can be used to measure the width and height of a tooth, the measurement requires that the light beam is perpendicular to the surface of the tooth, and the reading is made directly through the graduated scale 105, and the size of the whole structure can be set according to actual conditions.

The technical features of the present invention which are not described in the above embodiments may be implemented by or using the prior art, and are not described herein again, of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions which may be made by those skilled in the art within the spirit and scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. The positioning device for dental treatment is characterized by comprising a laser positioning mechanism, wherein the laser positioning mechanism comprises a base, a laser light source, a concave lens and a convex lens are sequentially arranged on the base, the laser light source, the concave lens and the convex lens are concentrically arranged, a baffle is arranged at one end, close to the convex lens, of the base, a rectangular opening is formed in the baffle, a first bidirectional screw is arranged on the inner side of the baffle and positioned on the left side and the right side of the rectangular opening through a bearing, two ends of the first bidirectional screw are provided with transverse light shielding plates through threaded connection, a first limiting rod is fixedly arranged on the baffle and positioned on any one side of the first bidirectional screw, and the two transverse light shielding plates are both sleeved on the first limiting rod;

still including being used for sealing the casing of base, the one end of casing be provided with the unanimous logical light mouth of size of rectangle mouth, the other end is provided with laser light source's connecting hole, two-way screw rod one and arbitrary one end of two-way screw rod two all stretches out the casing just is provided with the adjusting knob.

2. The positioning device for dental treatment according to claim 1, wherein scales are provided on the housing on both the upper side and the left side of the light-passing opening.

3. The positioning device for dental treatment according to claim 1, further comprising an adjusting mechanism for adjusting the laser positioning mechanism, wherein the adjusting mechanism comprises a worm and a local worm gear engaged with the worm, the worm is rotatably disposed on the housing and located at two sides below the connecting hole, sector plates are concentrically disposed at the upper and lower ends of the local worm gear, sector ring plates are concentrically disposed on the sector plates, sector ring grooves are disposed on the side walls of the sector ring plates, guide plates engaged with the sector ring grooves are disposed on the housing and located at the upper and lower sides of the connecting hole, limit plates contacting with the inner walls of the sector ring plates are disposed at the ends of the guide plates, a support rod is fixedly disposed on the sector plate at the lower portion of the worm gear, and the support rod extends into the center below the housing, the two sides of the supporting rod are arranged on the adjusting seat.

4. The positioning device for dental treatment according to claim 3, wherein the adjusting base comprises a supporting plate, an outer loop bar is fixedly arranged on the supporting plate, an inner loop bar is inserted into the outer loop bar, a plurality of adjusting holes are respectively arranged on the inner loop bar and the outer loop bar, and the supporting bar is hinged at the top end of the inner loop bar;

the inner sleeve rod is fixedly provided with a horizontal rod under the supporting rod, the horizontal rod is hinged with a shell of an electric push rod, and the push rod of the electric push rod is hinged on the supporting rod.

5. The positioning device for dental treatment as claimed in claim 3, wherein a vertical rod is fixedly disposed at a central position below the housing, a guide ball is hinged to a lower end of the vertical rod, an annular sliding groove is disposed on the support rod, and the guide ball is disposed in the annular sliding groove.

6. The positioning device for dental treatment according to any one of claims 1 to 5, further comprising a reflector, wherein a screw is disposed above the housing near the middle of the light-transmitting opening, a connecting rod is disposed on the screw through a nut, the reflector is disposed on the connecting rod extending out of the housing, a second screw is disposed on an upper portion of one end of the reflector, and the second screw is disposed on the connecting rod through a nut.

7. The dental treatment positioning apparatus of claim 3, wherein the partial turbine, the sector plate, the sector ring plate, and the sector ring groove are all greater than 180 degrees.