CN215306950U

CN215306950U - Spiral bone meal pusher for dentistry

Info

Publication number: CN215306950U
Application number: CN202120261497.8U
Authority: CN
Inventors: 胡曼
Original assignee: Air Force Medical University of PLA
Current assignee: Air Force Medical University of PLA
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-12-28
Anticipated expiration: 2031-01-29

Abstract

The utility model provides a dental spiral bone powder pusher, which comprises a piston assembly, a medicine cartridge, a cartridge cover, an illumination assembly, an elbow and a handle, wherein the piston assembly is arranged on the cartridge cover; the piston assembly comprises a screw rod with external threads and a piston, the upper end of the screw rod is fixedly connected with a handle, the lower end of the screw rod is fixedly connected with a piston, the lower end of the piston is fixedly connected with a stirrer, and the piston divides the cartridge into a front cavity and a rear cavity; the cartridge case is cylindrical barrel, the upper end of cartridge case has the internal thread that matches with the screw rod, the side swing joint of cartridge case has lighting components, the separable cover that installs the cartridge case that is used for opening/closed cartridge case of lower extreme of cartridge case, the bottom surface central point of cover puts and is equipped with a circular opening, the opening part is connected with the return bend, the back chamber communicates with each other with the return bend. The bone powder conveying device is simple in structure, convenient to use, low in cost and capable of quickly and accurately conveying bone powder uniformly.

Description

Spiral bone meal pusher for dentistry

Technical Field

The utility model relates to a medical auxiliary tool, in particular to a spiral bone meal pusher for dentistry.

Background

The department of stomatology, one of the medical disciplines, with current technology, many periodontal diseases are completely curable. The development of tissue bioengineering techniques such as: guided tissue regeneration technology, gene technology, artificial tooth implantation and the like are more exciting hopes for the regeneration of diseased teeth. When the tooth is planted, some bone powder needs to be filled, and before the bone powder is filled, the bone powder and normal saline or blood are often required to be mixed, clinically, the compatibility of the mixed bone powder and the blood is better, and the condition recovery of a bone bed in a planting area is more facilitated after the blood is used for filling micro gaps in the bone powder. Therefore, doctors usually need to suck out blood generated during the implant operation with a syringe, then mix a part of the blood with the bone powder, and then inject the mixture into the space between the implant and the alveolar bone.

The bone powder filling tool in the prior art has a single structure, is easy to slip during filling, and the bone powder can be filled in a lump and is not uniformly distributed, so that the bone powder filling tool is not beneficial to tooth implantation; in addition, when in operation, the bone meal is generally pushed in from the head of the injector, which easily causes the loss of the bone meal; when the bone meal and the blood or the normal saline are mixed, the bone meal and the blood or the normal saline are only mixed by the reciprocating motion of the piston or the pull rod, so that the bone meal and the blood or the normal saline cannot be fully mixed; in addition, when filling the bone meal, generally need to go on under the better condition of light, and current bone meal conveyer does not have the illumination function, is unfavorable for the accurate transport of bone meal like this.

Disclosure of Invention

In order to solve the problems, the utility model provides a dental spiral bone powder pusher with simple structure, convenient use and low cost, which is realized by the following technical scheme:

a spiral bone meal pusher for dentistry comprises a medicine cartridge, a cartridge cover, a bent pipe, a handle and a piston assembly, wherein the piston assembly is sleeved inside the medicine cartridge and comprises a screw rod with external threads and a piston; the cartridge is a cylindrical barrel, the upper end of the cartridge is provided with an internal thread matched with the screw rod, and the lower end of the cartridge is detachably provided with a cartridge cover used for opening or closing the cartridge; the bottom surface central point of cover is equipped with a circular opening, the opening part is connected with the return bend, the back chamber communicates with each other with the return bend.

Preferably, one side wall of the lower end of the medicine cylinder is connected with the side wall of the upper end of the cylinder cover through a hinge chain, and the other opposite side of the lower end of the medicine cylinder is fixed in a horizontal closed position through a locking fastener, so that the aim of detachably mounting the medicine cylinder and the cylinder cover is fulfilled.

Preferably, the locking fastener comprises a movable insertion tongue arranged on the side surface of the lower end of the medicine cylinder and an insertion opening correspondingly arranged on the side surface of the upper end of the cylinder cover, and the movable insertion tongue is inserted and connected with the insertion opening.

Preferably, the side of the cartridge is also movably connected with an illumination assembly.

Preferably, the lighting assembly comprises a switch, a battery, a telescopic rod and a light source, the battery is located inside the telescopic rod, the switch is located on the outer side of the telescopic rod, and the telescopic rod is fixedly connected with the light source.

Preferably, the cartridge case is movably connected with the telescopic rod through a rotary joint, and the telescopic rod is rotated to adjust the position of the light source.

Preferably, the light source is an Led lamp or a bulb.

Preferably, the cartridge is scored on its side.

Compared with the prior art, the utility model has the following beneficial effects: (1) the screw-type movement of the screw can ensure that the bone powder is uniformly filled into the alveolar bone, thereby avoiding the bone powder from being filled into the alveolar bone in a conglomeration manner; (2) the installation of the cartridge case and the cartridge cover in a separated way is convenient for bone meal to enter from the lower end of the cartridge case, so that the loss of the bone meal is reduced; (3) the arrangement of the lighting assembly enables the bone meal conveying to be carried out in an environment with good light, and the accuracy of operation is improved; (4) the arrangement of the stirrer at the lower end of the piston realizes the sufficient mixing of the bone meal and the blood.

Drawings

FIG. 1 is a schematic structural view of the spiral bone powder pusher of the present invention;

FIG. 2 is a front view of the screw-type bone powder pusher of the present invention;

FIG. 3 is a front view of the screw-type bone powder pusher according to the present invention with the cartridge open;

wherein: 1-piston component, 11-screw rod, 12-piston, 2-cartridge, 21-rear cavity, 22-graduation line, 23-front cavity, 3-cartridge cover, 31-opening, 4-lighting component, 41-switch, 42-battery, 43-telescopic rod, 44-light source, 5-elbow, 6-handle, 7-hinged chain, 8-rotary joint, 9-locking piece, 91-movable plug tongue, 92-socket and 10-stirrer 10.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, a screw-type bone powder pusher for dental use comprises a piston assembly 1, a cartridge 2, a cartridge cover 3, an elbow 5 and a handle 6; the piston assembly 1 is sleeved inside the medicine cylinder 2 and comprises a screw rod 11 with external threads and a piston 12, the upper end of the screw rod 11 is fixedly connected with a handle 6, the lower end of the screw rod 11 is fixedly connected with the piston 12, the lower end of the piston 12 is fixedly connected with a stirrer 10, and the piston 12 divides the medicine cylinder 2 into a front cavity 23 and a rear cavity 21; the cartridge case 2 is cylindrical barrel, the upper end of cartridge case 2 has the internal thread that matches with screw rod 11, the separable cover 3 that is used for opening/closed cartridge case 2 of installing of the lower extreme of cartridge case 2, the bottom surface central point of cover 3 puts and is equipped with a circular opening 31, opening 31 department is connected with return bend 5, back chamber 21 communicates with each other with return bend 5.

In order to facilitate the screw 11 and the piston 12 to be spirally pushed in the medicine cylinder 2 and the tightness in the processes of blood extraction and bone meal delivery, the outer diameters of the screw 11 and the piston 12 are slightly smaller than the inner diameter of the medicine cylinder 2, and the piston 12 and the medicine cylinder 2 must be jointed. In this embodiment, the inner diameter of the cartridge 2 is 1.2cm, the volume is 10mL, the screw 11 and the cartridge 2 are made of PP, and the piston 12 is made of PE.

Referring to fig. 3, one side wall of the lower end of the cartridge 2 is connected with the side wall of the upper end of the cover 3 through a hinge chain 7, and the other opposite side is fixed at a horizontal closing position through a locking piece 9, so that the purpose of detachably mounting the cartridge 2 and the cover 3 is achieved; the lock catch 9 comprises a movable insertion tongue 91 arranged on the side surface of the lower end of the medicine cylinder 2 and a socket 92 correspondingly arranged on the side surface of the upper end of the cylinder cover 3, and the movable insertion tongue 91 is inserted and connected with the socket 92; during the use process, the insertion and the extraction between the inserting tongue 91 and the inserting hole 92 can be realized, blood is sucked into the medicine cylinder, bone powder is placed, and the mixed bone powder is conveyed to the alveolar bone. In order to ensure the sealing property when the cartridge 2 and the cap 3 are closed, the cartridge 3 may be provided with a gasket, and the blood is drawn out by making the rear chamber 21 vacuum due to the sealing property of the gasket.

Preferably, the side of the medicine container 2 is movably connected with an illumination assembly 4, the illumination assembly 4 comprises a switch 41, a battery 42, an expansion link 43 and a light source 44, the light source 44 is an Led lamp or a light bulb, the battery 42 is located inside the expansion link 43, the switch 41 is located outside the expansion link 43, and the expansion link 43 is fixedly connected with the light source 44. The battery 42 is used for supplying power to the light source 44, the switch 41 is used for controlling the light source 44 to be turned on and off, when the cartridge 2 is movably connected with the telescopic rod 43, an opening is formed in the side wall of the cartridge 2 (the position of the opening does not affect the movement of the piston and the screw), one end of the rotary joint 8 is embedded into the opening, the other end of the rotary joint is connected with the telescopic rod 43, and the rotary joint 8 can freely rotate in the opening. In use, the light source 44 is moved to a proper position by adjusting the telescopic length of the telescopic rod 43 and the direction/angle of the rotary joint 8.

In order to facilitate the bone powder conveying of different types of alveolar bones, the elbow 5 is detachably connected to the opening 31, and the elbow 5 has different curvatures, which are 120 degrees and 150 degrees. In this embodiment, the inner diameter of the elbow 5 is 0.5cm, the elbow 5 has an external thread structure, the opening 31 has an internal thread, and the elbow 5 is connected to the opening 31 through the thread structure.

In order to achieve a good mixing of the bone meal and the blood, the stirrer 10 is a paddle stirrer, a turbine stirrer or a screw stirrer. When the handle 6 is twisted, the handle 6 drives the screw rod 11 to move, the screw rod 11 drives the piston 12 to move, finally the stirrer 10 is driven to perform spiral motion, and blood and bone meal are fully mixed in the motion process of the stirrer 10.

In order to accurately control the input amount of blood and bone meal, the side surface of the medicine cylinder 2 is carved with 1-10 ml of volume scale marks 22, when the handle 6 is twisted to drive the screw rod 11 to move, the contact point of the piston 2 and the medicine cylinder 3 changes, and the blood suction amount and the bone meal conveying amount are controlled through the change value of the positions before and after twisting.

The use method of the dental spiral bone powder pusher comprises the following steps: firstly, the clean and sterilized bone powder propeller is taken out, the movable inserting tongue 91 and the inserting opening 92 are mutually occluded, the medicine cylinder 2 is in a closed state, the lighting switch 41 is turned on, the length and the direction of the telescopic rod 43 are adjusted, the light source 44 can well irradiate the alveolar bone of a patient, the propeller is stretched into the oral cavity of the patient, the handle 6 is twisted, the screw rod 11 drives the piston 12 to move like an external spiral mode, blood generated in the planting operation is sucked into the back cavity 21, the size of a gap between an implant and the alveolar bone is observed, the amount of the needed bone powder and the blood is confirmed, and redundant blood is discharged. Next, the pusher of the present invention is inverted, the handle 6 is positioned below, the handle 6 is twisted, the screw 11 drives the piston 12 to move outward, blood contacts the piston 12, the movable tongue 91 is pulled out from the socket 92, the cartridge 2 is in an open state, the bone meal is put into the rear cavity 21 while observing the volume scale 22 on the side of the cartridge 2, and the blood and the bone meal cannot flow out of the rear cavity 21 in the process. Finally, insert the tongue 91 into the mouth 92, make the cartridge 2 in the closed state, twist the handle 5 several times repeatedly, through the up-and-down movement and axial movement of the agitator 10, make bone meal and blood fully mix, bone meal does not leak from the end of the bend 5 in this process, after mixing, stretch into the patient's buccal cavity again, transport the bone meal mixture to between the corresponding spaces, after the bone meal transport finishes, move the bone meal propeller out of buccal cavity, close the light source 44.

The embodiments described above are intended to facilitate one of ordinary skill in the art in understanding and using the utility model. It will be readily apparent to those skilled in the art that various modifications to the above-described embodiments may be made, and the generic principles defined herein may be applied to other embodiments without the use of inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications to the present invention based on the disclosure of the present invention within the protection scope of the present invention.

Claims

1. A dental spiral bone meal pusher comprises a medicine cartridge (2), a cartridge cover (3), an elbow (5) and a handle (6), and is characterized by further comprising a piston assembly (1), wherein the piston assembly (1) is sleeved inside the medicine cartridge (2), the piston assembly (1) comprises a screw rod (11) with external threads and a piston (12), the upper end of the screw rod (11) is fixedly connected with the handle (6), the lower end of the screw rod (11) is fixedly connected with the piston (12), the lower end of the piston (12) is fixedly connected with a stirrer (10), and the medicine cartridge (2) is divided into a front cavity (23) and a rear cavity (21) by the piston (12); the medicine cylinder (2) is a cylindrical cylinder, the upper end of the medicine cylinder (2) is provided with an internal thread matched with the screw rod (11), and the lower end of the medicine cylinder (2) is detachably provided with a cylinder cover (3) used for opening or closing the medicine cylinder (2); the bottom surface central point of cover (3) puts and is equipped with a circular opening (31), opening (31) department is connected with return bend (5), back chamber (21) communicate with each other with return bend (5).

2. A dental spiral bone powder pusher according to claim 1, wherein one side wall of the lower end of the cartridge (2) is connected to the side wall of the upper end of the cover (3) by a hinge chain (7), and the other side is fixed in a horizontal closed position by a locking member (9), so that the cartridge (2) and the cover (3) can be detachably mounted.

3. The dental spiral bone powder pusher as claimed in claim 2, wherein the locking member (9) comprises a movable tongue (91) disposed on the side of the lower end of the canister (2) and a socket (92) correspondingly disposed on the side of the upper end of the canister cover (3), the movable tongue (91) and the socket (92) are connected in an inserting manner.

4. A dental screw-type bone powder pusher according to claim 1, characterized in that an illumination assembly (4) is also movably connected to the side of the cartridge (2).

5. A dental spiral bone powder pusher according to claim 4, wherein the lighting assembly (4) comprises a switch (41), a battery (42), a telescopic rod (43) and a light source (44), the battery (42) is located inside the telescopic rod (43), the switch (41) is located outside the telescopic rod (43), and the telescopic rod (43) is fixedly connected with the light source (44).

6. A dental screw-type bone powder pusher according to claim 5, wherein the cartridge (2) is movably connected to the telescopic rod (43) by means of a rotary joint (8), and the position of the light source (44) is adjusted by rotating the telescopic rod (43).

7. The dental spiral bone powder pusher according to claim 6, wherein the light source (44) is Led lamp or light bulb.

8. A dental screw-type bone powder pusher according to claim 7, characterized in that the cartridge (2) is engraved with scale marks (22) on its side.