CN219461465U

CN219461465U - Riser in maxillary sinus

Info

Publication number: CN219461465U
Application number: CN202320706594.2U
Authority: CN
Inventors: 梁晋; 贾婷婷
Original assignee: Shandong First Medical University and Shandong Academy of Medical Sciences
Current assignee: Shandong First Medical University and Shandong Academy of Medical Sciences
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-08-04
Anticipated expiration: 2033-04-03

Abstract

The utility model relates to an intra-maxillary sinus lifter, and belongs to the technical field of oral implantation. The lifter includes rotatory lifting body, and wherein, rotatory lifting body is the column, and rotatory lifting body top is provided with the grinding piece, and rotatory lifting body outside is provided with the screw thread, and the screw thread is from top to bottom diameter grow gradually, and the density becomes low, and rotatory lifting body bottom is provided with the buckle groove, and the buckle groove is used for matching rotation machine handle or manual handle. According to the utility model, when the implant cavity rotates and advances, the bone wall is clamped by gradually enlarged threads, and meanwhile, the rest of the maxillary sinus bottom bone wall and the maxillary sinus mucosa are lifted by the grinding block, so that the maxillary sinus mucosa is prevented from being broken, and the purpose of lifting the maxillary sinus is safely and effectively achieved.

Description

Riser in maxillary sinus

Technical Field

The utility model relates to an intra-maxillary sinus lifter, and belongs to the technical field of oral implantation.

Background

At present, the intramaxillary sinus lifting is clinically carried out by two types of tools: one is a top-punching type inner lifter, which can lift cortical bone at the bottom of the maxillary sinus in a blunt force impact mode, then implant mixtures of bone powder or growth factors and the like to lift mucosa at the bottom of the maxillary sinus, and meet the requirement of bone mass implantation, but the hard knocking easily causes discomfort of patients in the operation process; the other is a grinding type inner lifter, wherein bone close to the maxillary sinus bottom is ground through instruments such as a disc drill and the like, and then the mucosa at the maxillary sinus bottom is directly lifted, but the mucosa perforation of the maxillary sinus is easily caused in the operation process, so that the technical difficulty is high. Other water sac lifting methods, ultrasonic osteotome lifting methods and the like have limited clinical application due to longer operation time.

Chinese patent document CN114052959a discloses a special maxillary sinus lifting device for dental implant, which comprises a rotary mounting seat, a rotary lifter, a water passage, a water outlet and a locking member. The lower end of the rotary lifter is connected with the top end of the rotary mounting seat; the water passage is positioned in the rotary mounting seat and the rotary lifter and is distributed from the bottom end of the rotary mounting seat to the top end of the rotary lifter; the water outlet is arranged at the top of the rotary lifter and is communicated with the water passage; the locking piece is arranged on the rotary mounting seat. The device is through the hydraulic lifting maxillary sinus bottom mucosa, but hydraulic lifting can have two technical problems, and one is the sealing problem, and in the drilling process, the leakproofness between rotator and the alveolar bone is difficult to guarantee, and the hydraulic requirement can not be met, and the second is the fixed problem, and the pressure is big when hydraulic lifting, and the fixed between rotator and the alveolar bone is difficult to guarantee, and the rotator is likely to be ejected out of the planting hole, can't promote, and for this reason, the utility model has been proposed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the maxillary sinus inner lifter, which clamps the bone wall through gradually enlarged threads when rotating and advancing in the planting hole, and simultaneously lifts the residual maxillary sinus bottom bone wall and the maxillary sinus mucosa through the grinding block, thereby avoiding the maxillary sinus mucosa from being broken, and safely and effectively achieving the purpose of maxillary sinus lifting.

The technical scheme of the utility model is as follows:

the utility model provides a riser in maxillary sinus, includes the rotatory promotion body, and wherein, rotatory promotion body is the column, and rotatory promotion body top is provided with the grinding piece, and rotatory promotion body outside is provided with the screw thread, and the screw thread is from top to bottom diameter grow gradually, and density becomes low, and rotatory promotion body bottom is provided with the buckle groove, and the buckle groove is used for matching the rotation to use machine handle or manual handle, drives rotatory promotion body rotation through machine handle or manual handle.

According to the utility model, the grinding blocks are in a triangular pyramid shape, a plurality of grinding blocks are closely and circumferentially arranged at the top end of the rotary lifting body, and the grinding blocks are combined into a circle to completely cover the top end of the rotary lifting body.

According to a further preferred embodiment of the utility model, the vertical distance from the apex to the bottom surface is 0.3mm when the sanding block is in the mounted position.

According to a preferred embodiment of the utility model, the length of the thread on the rotating lifting body is 10mm and the diameter of the thread is at most 5.5mm.

Working principle: when the device is used, the existing drilling machine is used for creating the planting hole, then the rotary lifting body is connected with the machine handle or the manual handle on the drilling machine, the rotary lifting body is driven to rotate and advance in the planting hole through the machine handle or the manual handle, the rotary lifting body clamps the bone wall through gradually enlarged threads, and meanwhile, the residual bone wall at the bottom of the maxillary sinus and the mucosa of the maxillary sinus are lifted through the grinding block.

The utility model has the beneficial effects that:

the utility model provides a maxillary sinus inner lifter, which clamps bone walls through gradually enlarged threads when rotating and advancing in a planting hole, and lifts residual maxillary sinus bottom bone walls and maxillary sinus mucous membranes through grinding blocks, so that the maxillary sinus mucous membranes are prevented from being broken, and the aim of lifting the maxillary sinus is safely and effectively achieved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic top view of a modular block assembly of the present utility model;

FIG. 3 is a schematic view of a grinding block according to the present utility model;

wherein: 1. rotating the lifting body; 2. grinding the block; 3. a thread; 4. a manual handle.

Detailed Description

The utility model will now be further illustrated by way of example, but not by way of limitation, with reference to the accompanying drawings.

Example 1:

as shown in fig. 1-3, this embodiment provides a lifter in maxillary sinus, including a rotary lifter 1, where the rotary lifter 1 is a cylindrical body, a grinding block 2 is provided at the top end of the rotary lifter 1, a thread 3 is provided at the outer side of the rotary lifter 1, the diameter of the thread 3 gradually increases from top to bottom, the density becomes low, a fastening groove is provided at the bottom end of the rotary lifter 1, the fastening groove is used for matching a rotary machine handle or a manual handle 4, the rotary lifter is driven to rotate by the machine handle or the manual handle, and the machine handle and the manual handle are existing devices, and can be machine handles on a drilling machine, a planter or the manual handle on manual rotating devices.

The grinding blocks 2 are triangular pyramid-shaped, a plurality of grinding blocks 2 are tightly and circumferentially arranged at the top end of the rotary lifting body 1, and the grinding blocks are combined into a circle, as shown in fig. 2, and completely cover the top end of the rotary lifting body.

When the grinding block 2 is in the mounted position, the vertical distance from the apex to the bottom surface is 0.3mm.

The length of the thread on the rotating lifting body 1 is 10mm, and the diameter of the thread is 5.5mm at maximum.

The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present application, and these modifications and substitutions should also be considered as being within the scope of the present application.

Claims

1. The utility model provides a riser in maxillary sinus, its characterized in that, including rotatory lifting body, wherein, rotatory lifting body is the column body, and rotatory lifting body top is provided with the grinding piece, and rotatory lifting body outside is provided with the screw thread, and the screw thread is from top to bottom diameter grow gradually, and density becomes low, and rotatory lifting body bottom is provided with the buckle groove, and the buckle groove is used for matcing rotatory machine handle or manual handle.

2. The maxillary sinus elevator according to claim 1, wherein the grinding block has a triangular pyramid shape, and the plurality of grinding blocks are disposed around the top end of the rotary elevating body in a closely fitting manner.

3. The intramaxillary sinus elevator of claim 2 wherein the grinding block is in the installed position with a vertical apex-to-floor distance of 0.3mm.

4. The intramaxillary sinus elevator of claim 1, wherein the length of the thread on the rotary elevating body is 10mm and the diameter of the thread is 5.5mm at maximum.