CN217162342U

CN217162342U - Temporary fixing device for in-vitro teeth

Info

Publication number: CN217162342U
Application number: CN202123058815.XU
Authority: CN
Inventors: 范鑫丽
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-08-12
Anticipated expiration: 2031-12-07

Abstract

The utility model relates to an interim fixing device of separation tooth, including open-top's box, two sets of curb plate tops of box mutual disposition all are equipped with the two sets of screw rods that connect through support piece and coaxial line set up, and the one end that two sets of screw rods are close to each other all is equipped with the grip block, and the one end of keeping away from each other all is equipped with the fastener. The in vitro tooth is temporarily fixed by the group of clamping blocks at the opening at the top of the open container, when the container contains aqueous solution containing normal saline and antibiotics, the tooth root of the in vitro tooth is soaked in the aqueous solution, and meanwhile, the occlusal surface is exposed, so that the treatment operation of the in vitro tooth by the root canal treatment experiment operation of the dental implant and the dental medical student in the tooth replantation is facilitated.

Description

Temporary fixing device for in-vitro teeth

Technical Field

The utility model relates to a medical treatment assists the utensil field, specifically is a temporary fixing device of separation tooth.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The tooth replantation is to transplant a third molar into the alveolus of the first and second molars extracted due to extensive caries and to right one inclined molar; in the case of dental replantation in which a tooth is dislocated due to a tooth trauma, if an extra-oral root canal treatment is performed during the transplantation, the risk of dental pulp infection and root absorption can be reduced (for example, procedures such as opening an isolated tooth cavity, removing a necrotic dental pulp, enlarging a root canal using a root canal file, filling the root canal with a specific material, or measuring the length of the root canal using a resistor sheet equipped with a root canal instrument), and therefore, it is necessary to immerse the root of the isolated tooth in a solution containing physiological saline and antibiotics in order to secure periodontal ligament activity in the extra-oral root canal treatment.

In the process, doctors are required to operate all parts of the in-vitro tooth, the consumed time is long, and the activity of the in-vitro tooth is ensured at the same time, in the prior art, the in-vitro tooth can only be wound with gauze, the activity is maintained by depending on a small amount of physiological saline and antibiotics contained in the gauze, the gauze interferes with the treatment operation of the doctors on the in-vitro tooth, so that the treatment time of the in-vitro tooth is prolonged, the physiological saline and the antibiotics which can be adsorbed in the gauze are limited, the activity of the in-vitro tooth is difficult to ensure for a long time, and the success rate of tooth replantation is influenced.

Meanwhile, when the medical students use the in-vitro tooth to perform the root canal treatment operation training, the length of the in-vitro root canal needs to be measured by using the root canal length measuring instrument, the experimental operation of the root canal treatment can be performed only by the way of holding the in-vitro tooth at present, the operation in the mouth can not be completely simulated by using both hands, and the whole set of root canal treatment flow training can not be completed when the length of the root canal is measured in vitro.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical problem that exists among the above-mentioned background, the utility model provides a separation tooth temporary fixation device utilizes a set of grip block temporary fixation separation tooth at the opening part at uncovered container top, when the container holds the solution that contains normal saline and antibiotic, makes the root of tooth of separation tooth soak in solution, and the occlusal surface exposes simultaneously, is favorable to tooth replantation art and the treatment of oral cavity medical student's root canal therapy experimental operation to separation tooth.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a first aspect of the utility model provides a temporary fixing device of separation tooth, including open-top's box, two sets of curb plate tops of box mutual disposition all are equipped with the two sets of screws that connect through support piece and the coaxial line sets up, and the one end that two sets of screws are close to each other all is equipped with the grip block, and the one end of keeping away from each other all is equipped with the fastener.

The box includes at least two sets of curb plates of mutual disposition, and one side of each group curb plate all is equipped with support piece.

The box body also comprises a bottom plate, and at least four groups of side plates are connected with the bottom plate to form a container with an opening at the top.

The side plate is made of transparent material.

The supporting piece is provided with a threaded hole for accommodating the screw rod to pass through, and the screw rod is movably connected to the supporting piece through the threaded hole.

The clamping block comprises a connecting block arranged at one end of the screw rod, the connecting block is provided with a connecting rod capable of being detachably connected, the connecting rod is connected with the clamping part, and the bottom of the clamping part is provided with a bearing part.

The tip of screw rod stretches into inside the connecting block and with the inner wall butt of connecting block, the screw rod both sides arrange at least two sets of guide bars side by side, two sets of guide bar one end are connected on support piece, and the other end is connected on the connecting block.

The clamping part and the supporting part are both arc-shaped.

In the two groups of clamping blocks, the minimum distance between the two bearing parts is not more than the distance between the two clamping parts.

The included angle between the clamping part and the supporting part in the vertical direction is 13-16 degrees.

Compared with the prior art, the above one or more technical schemes have the following beneficial effects:

1. at the opening part at uncovered container top, utilize the crown of tooth portion and the tooth neck portion of the centre gripping piece of being rotated the drive by the screw rod temporarily fixed separation tooth, when the container holds the aqueous solution that contains normal saline and antibiotic, make the root of tooth of separation tooth soak in aqueous solution, the occlusal surface exposes simultaneously, is favorable to in the tooth replantation art, the oral cavity medical student root canal therapy experimental operation to the processing operation of separation tooth.

2. The clamping force is generated by adopting screw transmission, and the clamping force can be controlled by the number of turns of the thread turned by the screw when the clamping device is used, so that the separated teeth are clamped and fixed in the required posture.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic view of a top view of a storage device according to one or more embodiments of the present invention;

fig. 2 is a schematic structural diagram of a side view of a storage device according to one or more embodiments of the present invention;

fig. 3(a) is a schematic structural diagram of a preservation device according to one or more embodiments of the present invention in a state where a separated tooth is not clamped;

fig. 3(b) is a schematic structural diagram of a state that the isolated tooth is clamped by the preservation device according to one or more embodiments of the present invention;

fig. 4 is a schematic view of a partial structure of a holding block of a storage device according to one or more embodiments of the present invention;

in the figure: 10. the tooth of separation, 1, box, 11, curb plate, 2, support piece, 3, screw rod, 31, guide bar, 4, clamping block, 41, clamping part, 42, supporting part, 43, connecting rod, 44, connecting block, 5, fastener.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The isolated tooth refers to a tooth which is separated from the alveolar fossa of the upper and lower jaws due to trauma, tooth extraction in a special department, periodontal disease, natural falling and the like.

As described in the background art, the root of a tooth isolated from the mouth is immersed in a solution containing physiological saline and antibiotics to ensure periodontal ligament activity in the case of endodontic treatment, and the isolated tooth is maintained in the prior art only by a small amount of physiological saline and antibiotics contained in gauze after being wound around the gauze.

The length of the in vitro root canal needs to be measured by a root canal length measuring instrument in the process of root canal treatment, and the working principle is as follows: the resistance between the periodontal ligament and the oral mucosa of the human body is constant (about 6.5 ohms). An electrode is positioned in the oral mucosa, and an electrode holding root canal file is positioned in the measuring root canal, so that the root canal length can be measured.

In the root canal therapy operation experiment training process of carrying out tooth body endodontics at the dentist's of oral cavity student, can only carry out root canal therapy's experimental operation through the mode of handheld separation tooth, and can not use both hands to simulate intraoral operation completely, also can not accomplish whole set of root canal therapy flow operation training in the time of measuring root canal length in vitro. When the tooth root of the in vitro tooth is soaked in the normal saline, the normal saline is both inside and outside the root canal, and the resistance is the same, the length of the root canal can be measured.

Therefore, the following embodiment provides a temporary fixing device for in-vitro teeth, in which in-vitro teeth are temporarily fixed by using a group of clamping blocks at an opening at the top of an open container, and when the container contains a solution containing physiological saline and antibiotics, the tooth roots of the in-vitro teeth are soaked in the solution, and simultaneously the occlusal surface is exposed, so that the temporary fixing device is beneficial to the treatment operation of the in-vitro teeth during the tooth replantation or the root canal therapy experimental operation of the dental practitioner.

The first embodiment is as follows:

as shown in fig. 1-4, the purpose of this embodiment is to provide a temporary fixing device for separated teeth, which includes a box body 1 with an open top, two sets of side plates 11 oppositely arranged on the box body 1 are respectively provided with two sets of screws 3 connected by a supporting member 2 and coaxially arranged, one ends of the two sets of screws 3 close to each other are respectively provided with a clamping block 4, and one ends of the two sets of screws far away from each other are respectively provided with a fastening member.

The screw rod 3 is driven to move along the axis of the screw rod through rotating the fastener, so that the two clamping blocks 4 are close to each other or far away from each other, and then the in-vitro tooth 1 is clamped or loosened.

The box body 1 comprises at least two groups of oppositely arranged side plates 11, wherein one side of each group of side plates 11 is provided with a support member 2, in the embodiment, the support member 2 is a strip-shaped metal plate, and the two groups of support members 2 are oppositely arranged on the outer sides of the side plates 11.

The box body 1 further comprises a bottom plate, and at least four groups of side plates 11 are connected with the bottom plate to form a container with an open top.

The side plate 11 is made of a transparent material, and may be an acrylic plate, for example.

The support member 2 is provided with a threaded hole for receiving the screw rod 3 therethrough, and the screw rod 3 is movably connected to the support member 2 through the threaded hole, so that the weight of the screw rod 3 is transferred to the support member 2 to be borne.

In the present embodiment, as shown in fig. 3(a) - (b), the screw 3 is rotated by rotating the fastener 5 to make the clamping blocks 4 approach to each other, move away from each other or change the clamping position of the tooth 10.

As shown in fig. 4, the clamping block 4 includes a connecting block 44 disposed at one end of the screw rod 3, the connecting block 44 is provided with a detachably connected connecting rod 43, the connecting rod 43 is connected with the clamping portion 41, and the bottom of the clamping portion 41 is provided with a supporting portion 42.

The tip of screw rod 3 stretches into inside and with the inner wall butt of connecting block 44, and screw rod 3 both sides are arranged at least two sets of guide bar 31 side by side, and two sets of guide bar 31 one end are connected on support piece 2, and the other end is connected on connecting block 44, and guide screw rod 3 follows support piece 2's direction of motion on the one hand, and on the other hand restricts the rotation of connecting block 44, makes the rotary motion of screw rod 3 change linear motion into to a centre gripping that is used for grip block 4.

The clamping part 41 and the supporting part 42 are both arc-shaped, the supporting parts 42 of the two groups of clamping blocks 4 are close to each other, the clamping part 41 is used for contacting the bottom of the dental crown of the in-vitro tooth 10, the supporting part 42 is used for contacting the neck part of the in-vitro tooth 10, the included angle of the clamping part 41 and the supporting part 42 in the vertical direction is 13-16 degrees, the included angle is 15 degrees in the embodiment, the clamping part 41 and the supporting part 42 form a structure with the reduced width under the cross section, the structure is used for supporting the neck part and the dental crown of the in-vitro tooth 10, and the tooth root is favorably exposed in the box body 1.

Connecting rod 43 can be dismantled with connecting block 44 and be connected for the grip block 4 of different specifications is changed, because the overall dimension of front tooth and back tooth is different, then the width of grip part 41 and supporting part 42, length and radian isoparametric all are in the difference, need change grip block 4 according to the type of the separation tooth 10 of difference, and grip part 41 and supporting part 42 are integrated into one piece's part, then realize the anchor clamps of different models through the connecting rod 43 of being connected with grip part 41 and change.

During the use, the inside normal saline and the aqueous solution of antibiotic of being full of box 1, the separation tooth is arranged in between two grip blocks 4, drives screw rod 3 rotation through rotating fastener 5 and makes two sets of grip blocks 4 be close to each other, fixes the crown portion centre gripping of separation tooth 10 in aqueous solution liquid level top, and the tooth root portion is located below the liquid level, and the occlusal surface exposes simultaneously to be favorable to tooth replanting art and the various processing operation of the student's root canal therapy experiment operation of oral cavity medicine to separation tooth 10.

The screw rod 3 is adopted for transmission to generate clamping force, and doctors can control the clamping force through the number of turns of the thread turned into by the screw rod 3, so that the in-vitro teeth are clamped and fixed in the required postures.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A temporary fixing device for in-vitro teeth is characterized in that: the box body is provided with an opening at the top, the tops of two groups of side plates which are oppositely arranged in the box body are respectively provided with two groups of screw rods which are connected through a supporting piece and are coaxially arranged, one ends of the two groups of screw rods which are close to each other are respectively provided with a clamping block, and the other ends of the two groups of screw rods which are far away from each other are respectively provided with a fastener;

the clamping block comprises a connecting block arranged at one end of the screw rod, the connecting block is provided with a connecting rod which is detachably connected, the connecting rod is connected with the clamping part, and the bottom of the clamping part is provided with a bearing part; in the two groups of clamping blocks, the minimum distance between the two bearing parts is not greater than the distance between the two clamping parts; the included angle between the clamping part and the supporting part in the vertical direction is 13-16 degrees.

2. The isolated dental temporary fixture device of claim 1, wherein: the box body comprises at least two groups of oppositely arranged side plates, and one side of each group of side plates is provided with a supporting piece.

3. The isolated dental temporary fixture device of claim 1, wherein: the box body also comprises a bottom plate, and at least four groups of side plates are connected with the bottom plate to form a container with an opening at the top.

4. The isolated tooth temporary fixing device according to claim 2, wherein: the side plate is made of transparent materials.

5. The isolated tooth temporary fixing device according to claim 1, wherein: the support piece is provided with a threaded hole for the screw to pass through, and the screw is movably connected to the support piece through the threaded hole.

6. The isolated tooth temporary fixing device according to claim 1, wherein: the tip of screw rod stretches into inside the connecting block and with the inner wall butt of connecting block, the screw rod both sides arrange at least two sets of guide bars side by side, two sets of guide bar one end are connected on support piece, and the other end is connected on the connecting block.

7. The isolated tooth temporary fixing device according to claim 1, wherein: the clamping part and the supporting part are both arc-shaped.