Portable deciduous tooth crushing device

Abstract

The utility model discloses a portable deciduous tooth breaking device which comprises a first holding rod and a second holding rod, one end of the first holding rod is hinged to one end of the second holding rod, an extrusion head is arranged on the first holding rod, and a groove used for containing deciduous teeth is formed in the second holding rod. When the first holding rod and the second holding rod are close to each other, the extrusion head is in clearance fit with the groove; according to the scheme, the first holding rod and the second holding rod are close to each other by holding the two holding parts with a hand, so that the extrusion head crushes the deciduous teeth placed in the grooves, and the dental pulp mesenchymal stem cells in the deciduous teeth are conveniently extracted; the protruding length of the extrusion head can be adjusted, so that the distance between the front end of the extrusion head and the bottom of the groove is adjusted when the first holding rod and the second holding rod get close to each other, deciduous teeth of different sizes can be matched, and the situation that the deciduous teeth and dental pulp are crushed together due to the too small distance, and consequently the dental pulp is difficult to extract is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tooth processing, in particular to a portable deciduous tooth crushing device. Background Art

[0002] Stem cells are the most primitive cells in the human body and have a strong ability to differentiate and regenerate. Since the 21st century, they have been listed as one of the hot spots of scientific and technological development. Dental pulp stem cells are mesenchymal stem cells extracted from teeth. Mesenchymal stem cells are a type of pluripotent stem cell. Under specific induction conditions in vivo or in vitro, they can differentiate into a variety of tissue cells such as fat, bone, cartilage, muscle, tendon, ligament, nerve, liver, myocardium, endothelium, etc. They still have multidirectional differentiation potential after continuous subculture and cryopreservation. They can be used as ideal seed cells for the repair of tissue and organ damage caused by aging and pathology. They have been used in the treatment and research of hundreds of diseases such as cirrhosis, diabetes, degenerative diseases, nerve damage, Alzheimer's disease and lupus erythematosus.

[0003] Deciduous teeth contain mesenchymal stem cells (DMSCs), which can be extracted from healthy deciduous teeth. Deciduous teeth that are functional and stable are not suitable for extraction. It is best to harvest them when the apical third of the tooth has been absorbed, starting when the tooth begins to loosen. If the root tip and rhizome are completely absorbed, leaving only the crown, stem cells cannot be extracted.

[0004] The pulp of the collected deciduous teeth is mechanically stripped out under sterile conditions. The stripped pulp is cut into pieces and then inoculated and cultured through enzymatic digestion or direct tissue adhesion method.

[0005] The commonly used method for pulp stripping at present is to clamp the crown of the tooth with tweezers, then use a syringe to draw up normal saline to blow the pulp cavity from the root section inward to rinse and loosen the pulp; use a pulp extraction needle to remove the pulp; but the pulp tissue of deciduous teeth is soft and the amount of pulp is small, which is not easy to be clamped out completely, and repeated flushing near the root root can easily introduce microbial contamination, which can easily cause culture failure; in addition, some laboratories use vises to crush the teeth. On the one hand, the vise is too large to be placed in a biosafety cabinet and can easily cause contamination; on the other hand, it is difficult to control the force of the vise, which may cause the pulp to be crushed along with the tooth, making it impossible to obtain the pulp tissue. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the present invention provides a portable deciduous tooth crushing device, which solves the problem that deciduous teeth crushing is inconvenient and easily causes pollution.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A portable deciduous tooth crushing device is provided, which includes a first gripping rod and a second gripping rod, one end of the first gripping rod and the second gripping rod are hinged to each other, an extrusion head is provided on the first gripping rod, and the front end of the extrusion head protrudes from the side of the first gripping rod close to the second gripping rod, and a groove for placing deciduous teeth is provided on the second gripping rod, and when the first gripping rod and the second gripping rod are close to each other, the extrusion head and the groove are gap-fitted.

[0009] Furthermore, a threaded hole is provided on the first holding rod, an external thread matching the threaded hole is provided on the extrusion head, and a bolt head is provided at the rear end of the extrusion head to facilitate its screwing.

[0010] Furthermore, the front end of the extrusion head is in a smooth hemispherical shape.

[0011] Furthermore, a gripping portion is fixedly sleeved on both the first gripping rod and the second gripping rod, and a smooth concave surface and a wavy surface are integrally formed on the two gripping portions at sides away from each other for easy hand-gripping and pinching.

[0012] Furthermore, a male buckle and a female buckle for interlocking are provided between the two gripping parts. The male buckle is connected to the end of one of the gripping parts through a flexible belt, and the female buckle is fixedly connected to the end of the other gripping part. When the male buckle and the female buckle are interlocked, the first gripping rod and the second gripping rod are brought closer to each other.

[0013] Furthermore, the gripping portion is made of plastic material, and the first gripping rod, the second gripping rod and the extrusion head are all made of stainless steel material.

[0014] Furthermore, a compression spring is provided between the first gripping rod and the second gripping rod, and both the first gripping rod and the second gripping rod are provided with avoidance grooves respectively connected to the two ends of the compression spring.

[0015] Furthermore, a hinged ear is provided on one side of the end of the first gripping rod, the end of the second gripping rod is pivotally connected to the hinged ear, and the end of the second gripping rod is provided with a limiting plate abutting against the first gripping rod.

[0016] The beneficial effects of the utility model are:

[0017] 1. This solution involves manually gripping the two gripping parts to bring the first gripping rod and the second gripping rod closer to each other, thereby allowing the extrusion head to crush the deciduous tooth placed in the groove to facilitate the extraction of dental pulp mesenchymal stem cells in the deciduous tooth; the extrusion head can adjust the protruding length of the extrusion head by rotating the bolt head at its end, thereby adjusting the distance between the front end of the extrusion head and the bottom of the groove when the first gripping rod and the second gripping rod are brought closer to each other, so as to accommodate deciduous teeth of different sizes and avoid the deciduous tooth and dental pulp being crushed together due to too small a distance, which makes dental pulp extraction difficult.

[0018] 2. This solution has a compact structure and can be placed in a sterilizer for sterilization before use to avoid contamination of the dental pulp and improve the success rate of extracting mesenchymal stem cells from deciduous teeth. When this solution is placed or carried, the male and female buckles can be interlocked to bring the first and second gripping rods closer together, thereby reducing space occupancy.

[0019] 3. This solution can automatically open the first gripping rod and the second gripping rod by compressing the spring, and under the limiting action of the limiting plate, the maximum angle of the first gripping rod and the second gripping rod remains unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a portable deciduous tooth crushing device.

[0021] Among them, 1. first holding rod, 2. second holding rod, 3. extrusion head, 4. groove, 5. threaded hole, 6. bolt head, 7. holding part, 8. smooth concave surface, 9. wavy surface, 10. male buckle, 11. female buckle, 12. flexible belt, 13. compression spring, 14. avoidance groove, 15. hinged ear, 16. limit plate. DETAILED DESCRIPTION

[0022] The specific implementation methods of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific implementation methods. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all utility model creations using the concept of the present invention are protected.

[0023] like Figure 1 As shown, the portable deciduous tooth crushing device of this scheme includes a first holding rod 1 and a second holding rod 2, and one end of the first holding rod 1 and the second holding rod 2 are hinged to each other. Specifically, a hinge ear 15 is provided on one side of the end of the first holding rod 1, and the end of the second holding rod 2 is pivotally connected to the hinge ear 15. This arrangement can make the first holding rod 1 and the second holding rod 2 completely close together; a compression spring 13 is provided between the first holding rod 1 and the second holding rod 2, and the first holding rod 1 and the second holding rod 2 are respectively provided with an avoidance groove 14 connected to the two ends of the compression spring 13, and the first holding rod 1 and the second holding rod 2 can be automatically stretched apart by the compression spring 13; a limit plate 16 is provided at the end of the second holding rod 2, which is in contact with the first holding rod 1, and the limit plate 16 can keep the maximum angle of the first holding rod 1 and the second holding rod 2 unchanged, and the avoidance groove 14 can provide an accommodation space for the compression spring 13 when the first holding rod 1 and the second holding rod 2 are completely close together.

[0024] An extrusion head 3 is provided in the middle of the first gripping rod 1, and the front end of the extrusion head 3 protrudes from the side of the first gripping rod 1 close to the second gripping rod 2. A groove 4 for placing deciduous teeth is provided on the second gripping rod 2. When the first gripping rod 1 and the second gripping rod 2 are close to each other, the extrusion head 3 and the groove 4 are loosely matched; thereby, the deciduous teeth are crushed by the extrusion head 3. Since the purpose of crushing the deciduous teeth is to extract the pulp tissue, the best treatment effect for the deciduous teeth is to clamp the deciduous teeth in half or break them into several petals, but the pulp is not crushed. The exposed pulp can be easily separated with the help of micro-tweezers. Therefore, it is necessary to avoid squeezing. The pressing head 3 crushes the teeth and the pulp together; therefore, a threaded hole 5 is provided on the first holding rod 1, and an external thread matching the threaded hole 5 is provided on the extrusion head 3. The front end of the extrusion head 3 is a smooth hemispherical shape, and the rear end of the extrusion head 3 is provided with a bolt head 6 for easy twisting; by rotating the bolt head 6, the protruding length of the extrusion head 3 can be adjusted, thereby adjusting the distance between the front end of the extrusion head 3 and the bottom of the groove 4 when the first holding rod 1 and the second holding rod 2 are close to each other, so as to adapt to deciduous teeth of different sizes and avoid the deciduous teeth and the pulp being crushed together due to too small a distance, which makes pulp extraction difficult.

[0025] Preferably, a gripping portion 7 is fixedly sleeved on both the first gripping rod 1 and the second gripping rod 2, and the gripping portion 7 is made of plastic material. A smooth concave surface 8 and a wavy surface 9 are integrally formed on the sides of the two gripping portions 7 that are away from each other, which are convenient for hand-holding and pinching, so as to improve the comfort of the user holding the gripping portion 7; a male buckle 10 and a female buckle 11 for mutual buckling are provided between the two gripping portions 7, the male buckle 10 is connected to the end of one of the gripping portions 7 through a flexible belt 12, and the female buckle 11 is fixedly connected to the end of the other gripping portion 7, and when the male buckle 10 and the female buckle 11 are buckled with each other, the first gripping rod 1 and the second gripping rod 2 are brought closer to each other; thereby reducing the space occupied by this solution when placed or carried, and improving its portability.

[0026] To sum up, the present solution has a compact structure, and the first gripping rod 1, the second gripping rod 2 and the extrusion head 3 are all made of stainless steel. They can be placed in a sterilization cabinet for sterilization before use to avoid contamination of the dental pulp and improve the success rate of extracting dental pulp mesenchymal stem cells from deciduous teeth. When in use, the two gripping parts 7 are pinched by hand to make the first gripping rod 1 and the second gripping rod 2 move closer to each other, so that the extrusion head 3 breaks the deciduous teeth placed in the groove 4, so as to facilitate the extraction of dental pulp mesenchymal stem cells from the deciduous teeth.

Claims

1. A portable deciduous tooth crushing device, characterized in that: It includes a first gripping rod and a second gripping rod, one end of the first gripping rod and the second gripping rod are hinged to each other, an extrusion head is provided on the first gripping rod, and the front end of the extrusion head protrudes from the side of the first gripping rod close to the second gripping rod, and a groove for placing deciduous teeth is provided on the second gripping rod, and when the first gripping rod and the second gripping rod are close to each other, the extrusion head and the groove are gap-fitted.

2. The portable deciduous tooth crushing device according to claim 1, characterized in that: A threaded hole is provided on the first holding rod, an external thread matching the threaded hole is provided on the extrusion head, and a bolt head is provided at the rear end of the extrusion head for easy screwing.

3. The portable deciduous tooth crushing device according to claim 2, characterized in that: The front end of the extrusion head is in a smooth hemispherical shape.

4. The portable deciduous tooth crushing device according to claim 1, characterized in that: The first gripping rod and the second gripping rod are both fixedly sleeved with gripping parts, and the two gripping parts are integrally formed with a smooth concave surface and a wavy surface on the sides away from each other for easy hand-gripping.

5. The portable deciduous tooth crushing device according to claim 4, characterized in that: A male buckle and a female buckle for buckling with each other are provided between the two gripping parts. The male buckle is connected to the end of one of the gripping parts through a flexible belt, and the female buckle is fixedly connected to the end of the other gripping part. When the male buckle and the female buckle are buckled with each other, the first gripping rod and the second gripping rod are brought closer to each other.

6. The portable deciduous tooth crushing device according to claim 4, characterized in that: The gripping portion is made of plastic material, and the first gripping rod, the second gripping rod and the extrusion head are all made of stainless steel material.

7. The portable deciduous tooth crushing device according to claim 1, characterized in that: A compression spring is provided between the first gripping rod and the second gripping rod, and both the first gripping rod and the second gripping rod are provided with avoidance grooves respectively connected to two ends of the compression spring.

8. The portable deciduous tooth crushing device according to claim 1, characterized in that: A hinged ear is provided on one side of the end of the first gripping rod, the end of the second gripping rod is pivotally connected to the hinged ear, and the end of the second gripping rod is provided with a limiting plate abutting against the first gripping rod.

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