CN109966005B

CN109966005B - Special protective device for oral clinical tooth preparation

Info

Publication number: CN109966005B
Application number: CN201910396533.9A
Authority: CN
Inventors: 张静
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2021-01-12
Anticipated expiration: 2039-05-14
Also published as: CN109966005A

Abstract

The invention discloses a special protection device for oral clinical tooth preparation, which comprises a first frame, wherein a rectangular rod penetrates through and is inserted into the front side of the first frame, the rectangular rod rotates at the upper limit of the first frame, a guide column is fixedly connected to the front end of the rectangular rod, a second frame is sleeved on the side surface of the guide column, a positioning rod is fixedly connected to the inner wall of the first frame, the second frame is penetrated by the positioning rod and is in sliding connection with the positioning rod, a protection plate is fixedly connected to the left side of the second frame, and a first knob is fixedly connected to the rear end of the rectangular rod. According to the invention, through the matching use of the structures, the problem that the electric telescopic rod in the traditional device is easy to break down relative to a simple supporting mechanism because of insufficient stability in the use process in the actual use process is solved; meanwhile, the tongue protection block is difficult to provide multi-position fixing placement for the tongue of a patient, and is difficult to meet the diversity requirements of the patient and bring inconvenience to the use.

Description

Special protective device for oral clinical tooth preparation

Technical Field

The invention relates to the technical field of medical equipment, in particular to a special protective device for dental clinical tooth preparation.

Background

In the department of stomatology, in the course that the oral clinician prepares various teeth in patient's mouth, often the car needle that cuts the tooth body will happen to injure the condition of patient's tongue, cheek tissue by accident, will lead to the increase of various infection chances after the tissue is damaged, these will cause unnecessary injury and agony to the patient; therefore, the special protective device for tooth preparation is provided, for example, the special protective device for oral clinical tooth preparation disclosed in Chinese patent CN107440809A, and comprises a first fixing frame, wherein the end part of the first fixing frame is connected with a connecting frame through a rotating mechanism, the top part of the connecting frame is fixedly provided with a second fixing frame, and the second fixing frame is connected with the first fixing frame through an angle adjusting device, so that the oral cavity is opened, a space area is provided for an operation, a large number of operation visual fields are exposed, the working strength of medical staff is greatly reduced, convenience is provided for the work of the medical staff, the first fixing frame and a tongue protective baffle are connected through a clamping mechanism, and the tongue protective baffle is convenient to detach or mount; however, in the actual use process, the electric telescopic rod in the traditional device has insufficient stability in the use process, and is more prone to failure compared with a simple supporting mechanism; meanwhile, the tongue protection block is difficult to provide multi-position fixing placement for the tongue of a patient, and is difficult to meet the diversity requirements of the patient, so that inconvenience is brought to use.

Disclosure of Invention

The invention aims to provide a special protective device for dental preparation in oral clinical practice, which improves the traditional device and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a clinical tooth of oral cavity prepares special protective device, includes frame one, the front side of frame one is run through and is inserted the rectangle pole, the rectangle pole is spacing rotation on frame one, the front end fixedly connected with guide post of rectangle pole, the side cover of guide post has frame two, the inner wall fixedly connected with locating lever of frame one, frame two be located the pole and run through and with locating lever sliding connection.

The left side of the second frame is fixedly connected with a protection plate, the rear end of the rectangular rod is fixedly connected with a first knob, the surface of the rectangular rod is sleeved with a pressure spring, the rear end of the pressure spring is fixedly connected with the front side of the first knob, the front end of the pressure spring is fixedly connected with a pressure plate, the surface of the pressure plate is provided with a rectangular hole and slides in a limiting manner with the surface of the rectangular rod through the rectangular hole, the front side of the pressure plate is fixedly connected with a friction sleeve, the front side of the friction sleeve is movably connected with the rear side of the first frame, the front side of the first frame is provided with a through hole and rotates with a screw rod in a limiting manner through the through hole, the rear side of the first frame is rotatably connected with two symmetrical cambered supporting plates, the opposite sides of the two cambered supporting plates are slidably connected with an extrusion plate, the surface of the extrusion plate is provided with a threaded hole and is in, the front end of the limiting rod is fixedly connected with the rear side of the first frame.

Preferably, the first frame is a hard rubber frame body, and corners of the first frame are subjected to circular arc transition treatment.

Preferably, the inner wall of the second frame is fixedly connected with a rubber pad, and the surface of the rubber pad is in sliding connection with the side face of the guide column.

Preferably, the surface of the protection plate is provided with a through groove, and the inner wall of the through groove is fixedly connected with a support rod.

Preferably, the rear end of the screw rod is fixedly connected with a second knob, and anti-skid grains are formed in the surface of the second knob.

Preferably, the top and the bottom of the extrusion plate are both arc-shaped surfaces, and the extrusion plate is connected with the surface of the arc-shaped supporting plate in a sliding manner through the arc-shaped surfaces.

Preferably, the number of the limiting rods is two, and the two limiting rods are symmetrically arranged by using the horizontal central line of the screw rod.

Compared with the prior art, the invention has the following beneficial effects:

the invention has the advantages that the frame plays a role in fixing and supporting, the rectangular rod is a transmission part, and when the device is used, the rectangular rod is manually driven to rotate; the rectangular rod is arranged on the guide post and fixedly connected with the rear end close to the edge, and the rectangular rod drives the guide post to eccentrically rotate due to the arrangement of the eccentric position, so that the frame II can move up and down under the limitation of the positioning rod in the continuous rotation process; the protective plate synchronously moves up and down along with the second frame, when the protective plate moves to the bottom, the tongue of the patient can be pressed on the bottom, and similarly, when the protective plate moves to the top, the tongue can be fixed on the wall of the upper palate;

the rectangular rod is driven to rotate conveniently through the first knob; under the action of the elasticity of the pressure spring, the pressure plate drives the friction sleeve to be tightly attached to the rear side of the frame I; when the front side of the friction sleeve is tightly attached to the rear side of the frame I, the rectangular rod does not rotate randomly any more; when the pressing plate is manually clamped and moves backwards, the friction sleeve is separated from the rear side of the frame I, and the rectangular rod can rotate along with the pressing plate through the matching of the pressing plate and the rectangular rod; the guide posts rotate synchronously; when the screw rod rotates, the extrusion plate in threaded fit with the screw rod has a tendency of rotating along with the screw rod, but under the limitation of the limiting rod, the extrusion plate cannot rotate, namely, the extrusion plate rotates relative to the screw rod, after the screw rod rotates, the extrusion plate can move forwards and backwards, when the extrusion plate moves forwards, the two cambered supporting plates can be gradually propped open to contact with the upper wall and the lower wall of the oral cavity of a patient and generate extrusion, meanwhile, the oral cavity of the patient is propped open, so that the whole device is fixed, otherwise, when the extrusion plate moves backwards, the two cambered supporting plates can release the clamping fixation and take the whole device out of the oral cavity of the patient;

thirdly, the invention solves the problem that the electric telescopic rod in the traditional device is easy to break down relative to a simple supporting mechanism because of insufficient stability in the using process in the actual using process by matching the structures; meanwhile, the tongue protection block is difficult to provide multi-position fixing placement for the tongue of a patient, and is difficult to meet the diversity requirements of the patient and bring inconvenience to the use.

Drawings

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

FIG. 2 is a left side view of the first frame of the present invention.

In the figure: 1-frame I, 2-rectangular rod, 3-guide column, 4-frame II, 5-positioning rod, 6-protection plate, 7-knob I, 8-pressure spring, 9-pressure plate, 10-friction sleeve, 11-screw, 12-cambered surface supporting plate, 13-extrusion plate, 14-limiting rod, 15-rubber pad, 16-supporting rod and 17-knob II.

Detailed Description

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

Referring to fig. 1 to 2, the present invention provides a technical solution: a special protective device for oral cavity clinical tooth preparation comprises a frame I1, wherein the frame I1 is a hard rubber frame body, corners of the frame I1 are subjected to arc transition treatment, the frame I1 has certain supporting strength and is not easy to damage the oral cavity of a patient due to the arrangement of the hard rubber frame body, and the inner wall of the oral cavity is further protected due to the arrangement of the arc transition treatment; the front side of the frame I1 is inserted with a rectangular rod 2 in a penetrating way, the rectangular rod 2 is a transmission component, when in use, the rectangular rod 2 is driven to rotate by hand, the rectangular rod 2 rotates on the frame I1 in a limiting way, the front end of the rectangular rod 2 is fixedly connected with a guide post 3, the rectangular rod 2 is arranged on the guide post 3 and is fixedly connected with the rear end close to the edge, and due to the arrangement of an eccentric position, the rectangular rod 2 drives the guide post 3 to rotate eccentrically, in the continuous rotation process, the frame II 4 can move up and down under the limitation of the positioning rod 5, the frame II 4 is sleeved on the side surface of the guide column 3, the rubber pad 15 is fixedly connected with the inner wall of the frame II 4, the surface of the rubber pad 15 is in sliding connection with the side surface of the guide column 3, due to the arrangement of the rubber pad 15, the friction between the guide column 3 and the second frame 4 is increased, so that the guide column 3 and the second frame 4 are not easy to shake when in a relatively static state, and a better protection effect can be achieved for the tongue of a patient; the inner wall of the first frame 1 is fixedly connected with a positioning rod 5, and the second frame 4 is penetrated by the positioning rod 5 and is connected with the positioning rod 5 in a sliding mode.

The left side of the frame II 4 is fixedly connected with a protection plate 6, the protection plate 6 synchronously moves up and down along with the frame II 4, when the protection plate 6 moves to the bottom, the tongue of a patient can be pressed at the bottom, and similarly, when the protection plate moves to the top, the tongue can be fixed on the wall of the upper palate, a through groove is formed in the surface of the protection plate 6, a support rod 16 is fixedly connected to the inner wall of the through groove, the tongue of the patient can be placed and selected more and can be protected sufficiently to avoid being accidentally injured by a vehicle needle through the arrangement of the through groove and the support rod 16, a knob I7 is fixedly connected to the rear end of the rectangular rod 2, the rectangular rod 2 is conveniently driven to rotate through the knob I7, a pressure spring 8 is sleeved on the surface of the rectangular rod 2, under the elastic action of the pressure spring 8, the pressure plate 9 is enabled to be tightly attached to the rear side of the frame I1 with a friction, the front end of the pressure spring 8 is fixedly connected with a pressure plate 9, the pressure plate 9 moves forwards under the action of the elastic force of the pressure spring 8, a rectangular hole is formed in the surface of the pressure plate 9 and slides in a limiting mode with the surface of the rectangular rod 2 through the rectangular hole, the front side of the pressure plate 9 is fixedly connected with a friction sleeve 10, and when the front side of the friction sleeve 10 is tightly attached to the rear side of the frame I1, the rectangular rod 2 does not rotate randomly; when the pressing plate 9 is manually clamped and moves backwards, the friction sleeve 10 is separated from the rear side of the frame I1, and the rectangular rod 2 rotates along with the pressing plate 9 through the matching of the pressing plate 9 and the rectangular rod 2; the guide post 3 rotates synchronously, the front side of the friction sleeve 10 is movably connected with the rear side of the frame I1, the front side of the frame I1 is provided with a through hole and is provided with a screw rod 11 through the through hole in a limiting rotation mode, the rear end of the screw rod 11 is fixedly connected with a knob II 17, the surface of the knob II 17 is provided with anti-skidding lines, the screw rod 11 is more convenient to rotate through the arrangement of the knob II 17, the anti-skidding lines are arranged on the screw rod 11, the rotation is more labor-saving, the rear side of the frame I1 is rotatably connected with two symmetrical cambered supporting plates 12, the opposite sides of the two cambered supporting plates 12 are slidably connected with an extrusion plate 13, the top and the bottom of the extrusion plate 13 are both arc surfaces, the extrusion plate 13 is slidably connected with the surfaces of the cambered supporting plates 12 through the arc surfaces, the sliding between the extrusion plate 13 and the cambered supporting plates 12 is smoother through the arrangement of the arc surfaces on the extrusion plate 13, the, after the screw 11 rotates, the extrusion plate 13 in threaded fit with the screw 11 tends to rotate along with the screw, but under the restriction of the limit rod 14, the extrusion plate 13 cannot rotate, namely, rotates relative to the screw 11, after the screw 11 rotates, the extrusion plate 13 moves back and forth, when the extrusion plate moves forward, the two arc-shaped supporting plates 12 are gradually propped open to contact with the upper and lower walls of the oral cavity of a patient and extrude, the oral cavity of the patient is propped open, so that the whole device is fixed, otherwise, when the extrusion plate moves backward, the two arc-shaped supporting plates 12 can release the clamping and fixing, and the whole device is taken out of the oral cavity of the patient, the surface of the extrusion plate 13 is provided with through holes and is connected with the limit rods 14 in a sliding mode through the through holes, the number of the limit rods 14 is two, and the two limit rods 14 are symmetrically arranged with the horizontal central line of the screw 11, through the arrangement of the two limit rods, the stress of the extrusion plate 13 is more balanced, and the movement is more stable; the front end of the limiting rod 14 is fixedly connected with the rear side of the first frame 1.

The working principle is as follows: when the special protective device for the clinical dental preparation in the oral cavity is used, the rectangular rod 2 is arranged on the guide post 3 and is fixedly connected with the rear end close to the edge, and due to the arrangement of the eccentric position, the rectangular rod 2 drives the guide post 3 to eccentrically rotate, so that the frame II 4 can move up and down under the limitation of the positioning rod 5 in the continuous rotation process; the protection plate 6 moves up and down synchronously along with the second frame 4, when the protection plate 6 moves to the bottom, the tongue of the patient can be pressed on the bottom, and similarly, when the protection plate 6 moves to the top, the tongue can be fixed on the wall of the upper jaw, so that the tongue of the patient can be placed more selectively and can be protected sufficiently; under the action of the elasticity of the pressure spring 8, the pressure plate 9 with the friction sleeve 10 is tightly attached to the rear side of the frame I1; when the front side of the friction sleeve 10 is tightly attached to the rear side of the frame I1, the rectangular rod 2 does not rotate randomly any more; when the pressing plate 9 is manually clamped and moves backwards, the friction sleeve 10 is separated from the rear side of the frame I1, and the rectangular rod 2 rotates along with the pressing plate 9 through the matching of the pressing plate 9 and the rectangular rod 2; the guide posts 3 rotate synchronously; after the screw 11 rotates, the extrusion plate 13 in threaded fit with the screw 11 has a tendency of rotating together with the screw, but under the limitation of the limiting rod 14, the extrusion plate 13 cannot rotate, namely, rotates relative to the screw 11, after the screw 11 rotates, the extrusion plate 13 moves forwards and backwards, when the extrusion plate moves forwards, the two arc supporting plates 12 are gradually propped open, contact with the upper and lower walls of the oral cavity of a patient and generate extrusion, the oral cavity of the patient is propped open, and the whole device is fixed, otherwise, when the extrusion plate moves backwards, the two arc supporting plates 12 can release the clamping fixation, and the whole device is taken out of the oral cavity of the patient; through the matching use of the structures, the problem that the electric telescopic rod in the traditional device is easy to break down relative to a simple supporting mechanism because of insufficient stability in the use process in the actual use process is solved; meanwhile, the tongue protection block is difficult to provide multi-position fixing placement for the tongue of a patient, and is difficult to meet the diversity requirements of the patient and bring inconvenience to the use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a clinical tooth of oral cavity prepares special protective apparatus which characterized in that: the frame comprises a first frame (1), a rectangular rod (2) penetrates through and is inserted into the front side of the first frame (1), the rectangular rod (2) is limited and rotates on the first frame (1), a guide column (3) is fixedly connected to the front end of the rectangular rod (2), a second frame (4) is sleeved on the side face of the guide column (3), a positioning rod (5) is fixedly connected to the inner wall of the first frame (1), and the second frame (4) penetrates through the positioning rod (5) and is in sliding connection with the positioning rod (5);

the protective plate (6) is fixedly connected to the left side of the second frame (4), the first knob (7) is fixedly connected to the rear end of the rectangular rod (2), a pressure spring (8) is sleeved on the surface of the rectangular rod (2), the rear end of the pressure spring (8) is fixedly connected with the front side of the first knob (7), a pressure plate (9) is fixedly connected to the front end of the pressure spring (8), a rectangular hole is formed in the surface of the pressure plate (9) and slides in a limiting mode with the surface of the rectangular rod (2) through the rectangular hole, a friction sleeve (10) is fixedly connected to the front side of the pressure plate (9), the front side of the friction sleeve (10) is movably connected with the rear side of the first frame (1), a through hole is formed in the front side of the first frame (1) and rotates in a limiting mode through the through hole to form a screw rod (11), the rear side of the first frame (1) is rotatably connected with two symmetrical cambered surfaces (12), and the extrusion plates (13) are, the surface of the extrusion plate (13) is provided with a threaded hole and is in threaded connection with the surface of the screw rod (11) through the threaded hole, the surface of the extrusion plate (13) is provided with a through hole and is connected with a limiting rod (14) through the through hole in a sliding mode, and the front end of the limiting rod (14) is fixedly connected with the rear side of the frame I (1).

2. The special protective device for the oral clinical dental preparation according to claim 1, wherein: the first frame (1) is a hard rubber frame body, and corners of the first frame (1) are subjected to circular arc transition treatment.

3. The special protective device for the oral clinical dental preparation according to claim 1, wherein: the inner wall of the second frame (4) is fixedly connected with a rubber pad (15), and the surface of the rubber pad (15) is in sliding connection with the side face of the guide column (3).

4. The special protective device for the oral clinical dental preparation according to claim 1, wherein: a through groove is formed in the surface of the protection plate (6), and a support rod (16) is fixedly connected to the inner wall of the through groove.

5. The special protective device for the oral clinical dental preparation according to claim 1, wherein: the rear end of the screw rod (11) is fixedly connected with a second knob (17), and anti-skid grains are formed in the surface of the second knob (17).

6. The special protective device for the oral clinical dental preparation according to claim 1, wherein: the top and the bottom of the extrusion plate (13) are arc-shaped surfaces, and the extrusion plate (13) is connected with the surface of the arc-shaped supporting plate (12) in a sliding manner through the arc-shaped surfaces.

7. The special protective device for the oral clinical dental preparation according to claim 1, wherein: the number of the limiting rods (14) is two, and the two limiting rods (14) are symmetrically arranged with the horizontal central line of the screw rod (11).