CN211834777U

CN211834777U - Reverse bone drill

Info

Publication number: CN211834777U
Application number: CN201922461380.XU
Authority: CN
Inventors: 张�杰; 许钦
Original assignee: Jiangyin Jintech Biotech Co ltd
Current assignee: Jiangyin Jintech Biotech Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-03
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a reverse bone drill, which comprises a drill bit, wherein the drill bit is provided with a thread, the thread is arranged into a reverse thread, and the drill bit is axially provided with a through hole for injection; the utility model has the advantages of reasonable design, can follow the through-hole in the middle of to pouring into normal saline into between sinus membrane and the bone, promote the sinus membrane to conveniently fill the bone meal, with the apparatus integration together, need not frequently change medical instrument, shorten the operating time, reverse threaded drill bit can be with autologous bone meal extrusion advance between sinus membrane and the bone, avoid extravagant, practice thrift the operation cost.

Description

Reverse bone drill

Technical Field

The utility model relates to a bone drill in tooth planting field especially relates to a reverse bone drill.

Background

Present bone drill all is forward thread, and the bone meal that will bore out is discharged externally, causes the waste of autologous bone meal, when implanting dental implant, needs pour into normal saline into between bone and the sinus membrane, lifts the sinus membrane, is convenient for fill into with the bone meal, and traditional mode needs drilling earlier reuse syringe and pours into normal saline into, and troublesome poeration needs to change surgical instruments many times.

SUMMERY OF THE UTILITY MODEL

To the technical problem that above-mentioned operation needs frequently to change the apparatus, the utility model provides a reverse bone drill, including the drill bit, be provided with the screw thread on the drill bit, reverse screw thread is set to the screw thread, the drill bit axial is provided with the through-hole that is used for the injection.

Preferably, one end of the drill bit is provided with a drill rod, and one end of the drill rod is sequentially provided with a limiting flange and a spline.

Preferably, the surface of the limit flange is provided with a limit groove.

Preferably, the drill bit, the drill rod, the limiting flange and the spline are of an integral structure.

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

the utility model discloses has following technological effect: the utility model has the advantages of reasonable design, can follow the through-hole in the middle of to pouring into normal saline into between sinus membrane and the bone, promote the sinus membrane to conveniently fill the bone meal, with the apparatus integration together, need not frequently change medical instrument, shorten the operating time, reverse threaded drill bit can be with autologous bone meal extrusion advance between sinus membrane and the bone, avoid extravagant, practice thrift the operation cost.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic diagram of the present invention.

1. A drill bit; 1.1, screw thread; 2. a drill stem; 3. a limiting flange; 3.1, limiting grooves; 4. a spline; 5. a through hole; 6. a sinus membrane; 7. bone.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

A reverse bone drill as shown in fig. 1, comprising a drill bit 1, wherein the drill bit 1 is provided with a thread 1.1, the thread 1.1 is arranged as a reverse thread, and the drill bit 1 is axially provided with a through hole 5 for injection; the reverse thread is the opposite thread to a conventional drill bit.

One end of the drill bit 1 is provided with a drill rod 2, and one end of the drill rod 2 is sequentially provided with a limiting flange 3 and a spline 4; the spline 4 is used for transmitting driving force to the drill bit 1, and the through hole 5 penetrates through the drill bit 1, the drill rod 2, the limiting flange 3, the spline 4 and the through hole 5.

The surface of the limiting flange 3 is provided with a limiting groove 3.1; the groove is convenient for clamping and positioning.

The drill bit 1, the drill rod 2, the limiting flange 3 and the spline 4 are integrated into a whole to form a structure.

As shown in figure 2, in the use process, firstly, the bone 7 is separated by a bone taking drill, then the edge of the bone 7 is drilled with a screw thread by a reverse bone drill, meanwhile, bone meal is reversely extruded into a cavity formed by the sinus membrane 6 and the bone 7, and physiological saline is injected into the cavity through the through hole 5, so that the sinus membrane 6 is lifted, the bone meal is conveniently filled, and the bone with a certain height can be implanted into an implant to complete the operation.

The utility model has the advantages of reasonable design, can follow the through-hole in the middle of to pouring into normal saline into between sinus membrane and the bone, promote the sinus membrane to conveniently fill the bone meal, with the apparatus integration together, need not frequently change medical instrument, shorten the operating time, reverse threaded drill bit can be with autologous bone meal extrusion advance between sinus membrane and the bone, avoid extravagant, practice thrift the operation cost.

The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.

Claims

1. The reverse bone drill is characterized by comprising a drill bit (1), wherein threads (1.1) are arranged on the drill bit (1), the threads (1.1) are arranged into reverse threads, and a through hole (5) for injection is axially arranged on the drill bit (1).

2. The reverse bone drill according to claim 1, characterized in that the drill bit (1) is provided with a drill rod (2) at one end, and the drill rod (2) is provided with a stop flange (3) and a spline (4) at one end in sequence.

3. A reverse bone drill according to claim 2, characterized in that the stop flange (3) is provided with a stop groove (3.1) on its surface.

4. A reverse bone drill according to claim 3, characterized in that the drill bit (1), the drill rod (2), the stop flange (3) and the splines (4) are of one piece construction.