CN217772446U

CN217772446U - Bone taking drill

Info

Publication number: CN217772446U
Application number: CN202220523861.8U
Authority: CN
Inventors: 周海锋
Original assignee: Shanghai Shenyi Medical Technology Co ltd
Current assignee: Shanghai Shenyi Medical Technology Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-11-11
Anticipated expiration: 2032-03-11

Abstract

Taking a bone drill, wherein the drill body is in a straight plate/long plate shape, and the front end of the drill body is provided with a blade part; the outer wall of the drill bit body is also provided with a collecting cavity for containing bone fragments accumulated at the drill bit. The utility model discloses a locating the collection chamber that link up the drill bit and accomodate the bone bits that the cutting part bored out immediately, realized getting the bone bits fast, do benefit to and keep active, more can realize the operation along with the usefulness of getting.

Description

Bone drill

Technical Field

The utility model relates to a kind of implant medical instrument, specifically speaking are a get bone and bore.

Background

The tooth is directly related to the living standard of people, the dental implant is an ideal tooth repairing means, and autologous bones are needed in the dental implant operation. After the teeth of a human body fall and are lost, alveolar bones in which the teeth are located can shrink, and the teeth are likely to be insufficient when being implanted. At this time, some bones need to be supplemented, and autologous bones are usually selected, because the adoption of the autologous bones is safer to implant the teeth, the postoperative healing effect is faster and more ideal, and the success rate of the implantation is higher.

When taking out the bone, the bone substance (bone fragments) from other parts of the patient is obtained through the blade and then transplanted to the alveolar bone. In order to maintain the activity of the bone fragments, the bone extraction should be completed as soon as possible, and a bone extraction tool is very important.

Most of drill bits of existing bone drills adopt annular cutting edges. For example, no. 02269451.X bone grafting bone extractor has annular blade teeth arranged on a bone extracting drill bit, and a mandril which is coaxial with the drill rod and can move back and forth along the axis of the drill rod is arranged in the drill rod. In the scheme, after the bone drilling is finished, the bone chips can be taken out by pushing the ejector rod with hands; and the problem that the interior of the drill rod is difficult to clean exists. In order to collect bone fragments, a bone fragment collecting piece in the patent document 201020567078.9 is adopted, and the scheme is a separable outer cylinder structure and is provided with a one-way valve; the structure is complicated, and the operation is relatively inconvenient.

Disclosure of Invention

The utility model discloses a solve current problem, aim at providing one kind and get the bone drill.

In order to achieve the purpose, the technical scheme adopted by the utility model comprises a drill bit body which is in a straight plate/long plate shape, and the front end of the drill bit body is provided with a cutting part; the outer wall of the drill bit body is also provided with a collecting cavity for containing bone fragments accumulated at the drill bit.

Wherein, the collecting cavity penetrates through the plate body of the drill bit body along the thickness direction of the drill bit body.

The collecting cavities are distributed along the length direction of the drill bit body to form rectangular collecting cavities penetrating through the plate body.

Wherein, the both sides long limit of drill bit body is equipped with the thickened plate that is the circumference and extends, and the thickened plate has both increased the intensity of drill bit body, has increaseed the virtual space volume in collection chamber again.

The cutting edge part comprises a drilling point which points forwards and a straight cutting edge which extends from the drilling point along the width direction of the drill bit body.

Wherein, the thickness of the straight edge is increased from the drilling point to two sides, and the section of the cone body is beneficial to increasing the strength.

Wherein, the front end of fixing base is connected to the rear end of drill bit body, and the rear end and the drilling rod of fixing base are connected.

The rear end of the drill rod is provided with a key groove used for being connected with the handle, namely the rear end of the fixing seat is detachably connected with the drill rod.

The drill bit further comprises an outer sleeve with the front end and the rear end communicated, and the drill bit body can be arranged inside the outer sleeve to play a role in protection.

Wherein, the rear end of the outer sleeve is provided with a split claw; when the outer sleeve retreats backwards, the split claws are opened, and the outer sleeve is limited on the outer wall of the fixed seat. The drill bit body extends out of the outer sleeve and can be used.

Compared with the prior art, the bone chips drilled by the cutting part are instantly accommodated in the collecting cavity arranged on the through drill bit, so that the bone chips are quickly taken, the activity is favorably kept, and the operation of taking and using at any time can be realized; after the material is taken out, the cleaning is convenient, and no dead angle exists; compact and simple structure, and is beneficial to batch production.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic view of the blade structure;

FIG. 4 is a schematic view of the outer sleeve;

FIG. 5 is a schematic view of the outer sleeve assembled with the drill body (stowed state);

referring to the attached drawings, the drill bit comprises a drill bit body 1, a drill point 2, a straight edge 3, a thickened plate 4, a collecting cavity 5, a fixed seat 6, a drill rod 7, an outer sleeve 8 and a split claw 9.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings; for convenience of explanation, the upper side of the drawings is referred to as "front", and the lower side of the drawings is referred to as "rear".

Referring to fig. 1 and 2, fig. 1 and 2 show an embodiment of the present invention, which mainly includes a drill body having a bar-shaped straight shape, and a blade portion disposed at a front end of the drill body for penetrating into a bone to drill bone fragments. Referring to fig. 1, the blade portion includes a central drill point pointed forward, and straight blades extending from the drill point in both width directions of the drill body.

In the embodiment, the included angle between the two straight blades is 180 degrees, the rear end of the drill bit body is connected with the front end of the cylindrical fixing seat, and the rear end of the fixing seat is connected with the drill rod.

Referring to fig. 1, the drill body is further provided with a collecting cavity for collecting the bone fragments accumulated at the drill. In this embodiment, the collecting cavity both runs through the plate body along the thickness direction of drill bit body, also distributes along the length direction of drill bit body simultaneously. The collecting cavity penetrates through the plate body, the cross section of the collecting cavity is rectangular, and a cuboid virtual space capable of collecting bone fragments is formed.

When in use, the drill point is punctured into a bone, then the drill bit body is rotated, and the straight edge is used for scraping the bone to obtain chips. Then, the bone fragments are gradually accumulated at the contact position, and a certain thickness is generated. The distance between the drilling point and the straight edge and the front end of the collecting cavity is set to enable bone fragments to easily enter the collecting cavity after being piled up and to be gradually piled up in the collecting cavity. When the bone fragments are accumulated to a proper amount, the bone fragments can be immediately poured out from the collection cavity along the thickness direction of the plate body and transferred; no other operation is needed, which is beneficial to maintaining the activity.

Preferably, referring to fig. 2, the two sides of the drill body form long sides due to the division of the collection cavity, and two sides of each long side are respectively provided with a thickened plate extending along the circumference of the fixing seat, so that the thickened plates increase the axial strength of the drill body and the space volume of the collection cavity.

Preferably, referring to fig. 3, the thickness of the two straight edges increases linearly from the drilling point to both sides, forming a cone section, which is beneficial for increasing the strength. In other embodiments, the collecting cavity may be a non-through groove structure, and the groove with an inward concave structure may also be used to contain bone fragments, with similar effects.

Referring to fig. 1, the rear end of the drill rod is preferably provided with a keyway for connection to a handle (not shown) which forms a separable connection to facilitate replacement of the drill bit body after wear.

Referring to fig. 4 and 5, the present embodiment further includes an outer sleeve having a front end and a rear end penetrating therethrough, and the drill body may be disposed inside the outer sleeve to perform the functions of storage and protection. Preferably, the rear end of the outer sleeve is provided with split claws, and the split claws are formed by cutting eight through grooves with one ends communicated with the lower end of the side wall of the outer sleeve; the outer wall of the outer sleeve is also provided with an observation hole.

When in use, the outer sleeve needs to be retracted backwards. The outer sleeve is shifted by a hand to retreat, and the split claw is jacked up and opened by the outer wall of the fixed seat, so that the outer sleeve is limited on the fixed seat. At the moment, the drill bit body relatively extends out of the opening at the front end of the outer sleeve and can be used; after the use, the outer sleeve is pushed back to the original position by hand, and the sectioning claw is reset along with the outer sleeve. In order to facilitate the operation, the diameters of the split claws and the outer wall of the fixed seat are correspondingly adapted.

The embodiments of the present invention have been described with reference to the accompanying drawings and examples, the structures of which are not intended to limit the present invention, and those skilled in the art can make modifications as required, and various changes or modifications can be made within the scope of the appended claims.

Claims

1. The utility model provides a get bone drill, includes the drill bit body, its characterized in that: the drill bit body is in a long plate shape, the front end of the drill bit body is provided with a blade part, and the blade part comprises a drilling point which points forwards and a straight blade which extends from the drilling point along the width direction of the drill bit body; the outer wall of the drill bit body is also provided with a collecting cavity for containing bone fragments accumulated at the drill bit.

2. The bone drill of claim 1, wherein: the collecting cavity penetrates through the plate body of the drill bit body along the thickness direction of the drill bit body.

3. The bone drill of claim 2, wherein: the collecting cavities are distributed along the length direction of the drill bit body to form a rectangular collecting cavity penetrating through the plate body.

4. The bone drill of claim 3, wherein: the long edges of the two sides of the drill bit body are provided with thickened plates which extend circumferentially.

5. The bone drill of claim 1, wherein: the front end of fixing base is connected to the rear end of drill bit body, and the rear end of fixing base is connected with the drilling rod.

6. The bone drill of claim 5, wherein: the rear end of the drill rod is provided with a key groove used for being connected with the handle, namely the rear end of the fixed seat is detachably connected with the drill rod.

7. The bone drill of any of claims 1-6, wherein: the drill bit further comprises an outer sleeve with the front end and the rear end communicated, and the drill bit body is arranged inside the outer sleeve.

8. The bone drill of claim 7, wherein: the rear end of the outer sleeve is provided with a split claw; when the outer sleeve retreats backwards, the split claws are opened, and the outer sleeve is limited on the outer wall of the fixed seat.