CN205307043U

CN205307043U - Right angle drill bit

Info

Publication number: CN205307043U
Application number: CN201620005202.XU
Authority: CN
Inventors: 宋国鸿; 梁丹; 熊学华; 郭新辉; 许啸; 曹阳; 库建斌; 肖斌; 李要争
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-06
Filing date: 2016-01-06
Publication date: 2016-06-15
Anticipated expiration: 2026-01-06

Abstract

The utility model provides a right angle drill bit, including main part and drill bit part, the main part is hollow structure, main part one side is equipped with the screw thread bayonet socket, the main part is connected with handle and sleeve, the dwang has been cup jointed in the sleeve, dwang one end is equipped with the second gear, the dwang other end is equipped with triangular head, the main part has the drill bit part through drill bit tail -hood lock, the drill bit part comprises drill bit and first gear. The utility model discloses to deep fracture, during in the face of space position narrow and small relatively, soft tissue or the blockking of material on every side, can't drill out required bone tunnel on every side, perhaps lead to the skew set direction scheduling problem in bone tunnel because of blockking, the universal drill bit of more ordinary drill bit and spring, above -mentioned problem more can effectively be solved to this design, and the reduction is to the tractive of soft tissue, and the incision can be littleer, it is easier that the operation is got up, makes surgery effect better.

Description

A kind of right angle bur

Technical field

This utility model relates to a kind of drill bit, particularly to a kind of right angle bur.

Background technology

Due to the design of drill bit, it is no matter conventional straight drill, or Universal rotary head, for general extremity fracture, all can use. But for fracture of pelvis, especially deep fracture (such as pelvis medial wall, four Bian Ti etc.), or the obese patient of fracture of pelvis; Or when relatively narrow and small position, space (such as during hip replacement, the boring of mortar cup is fixed), the stop of surrounding soft tissue or adjacent material, required osseous tunnel cannot be got out, or cause that osseous tunnel deviates set direction because stopping, thus affecting surgical effect, cause steel plate can not docile, even steel plate occur rotate, cause that fracture end para-position is not good enough to line, cause that surgical effect is not good enough; Or in hip replacement surgery, screw tail end highlights mortar cup, and liner can not be close to mortar cup, thus causing loosening, ultimately results in operative failure product. But this detection efficiency is relatively low, the gauge abrasion additionally, due to detection screw thread is very fast, causes that testing cost is expensive.

Summary of the invention

The technical problems to be solved in the utility model is to overcome existing defect, it is provided that a kind of right angle bur, reduces the tractive to soft tissue, and otch can be less, and what reduces the damage to soft tissue from, it is possible to effectively solve the problem in background technology.

In order to solve above-mentioned technical problem, this utility model provides following technical scheme:

This utility model provides a kind of right angle bur, including main part and bit part, described main part is hollow structure, described main part side is provided with screw thread bayonet socket, and described main part is connected to handle and sleeve, is socketed with rotation bar in described sleeve, described rotation bar one end is provided with the second gear, the described rotation bar other end is provided with Rhizoma Sparganii head, and described main part is fastened by drill bit tail cap bit part, and described bit part is made up of drill bit and the first gear.

As a kind of optimal technical scheme of the present utility model, described drill bit is arranged on the middle part of the first gear, the hole that described drill bit is arranged in the middle part of drill bit tail cap.

As a kind of optimal technical scheme of the present utility model, described first gear agrees with mutually with described second gear.

As a kind of optimal technical scheme of the present utility model, described drill bit and the first gear are fixed as one.

Compared with prior art this utility model reaches to provide the benefit that: this utility model is fractured (such as pelvis medial wall, four Bian Ti etc.) for deep, or the obese patient of fracture of pelvis; Or when relatively narrow and small position, space (such as during hip replacement, the boring of mortar cup is fixed), the stop of surrounding soft tissue or adjacent material, required osseous tunnel cannot be got out, or cause that osseous tunnel deviates the problems such as set direction because stopping, relatively conventional drill bit and spring Universal drill, this design more can effectively solve the problems referred to above, reduces the tractive to soft tissue, otch can be less, and what reduces the damage to soft tissue from; Operate and be easier to, make surgical effect better.

Accompanying drawing explanation

Accompanying drawing is used for providing being further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, is not intended that restriction of the present utility model together with embodiment of the present utility model.

In the accompanying drawings:

Fig. 1 is the structural representation of a kind of right angle bur of this utility model;

Fig. 2 is the structural representation of this utility model main part;

Fig. 3 is the structural representation that this utility model rotates bar;

Fig. 4 is the structural representation of this utility model bit part;

Number in the figure: 1, main part; 2, bit part; 3, bar is rotated; 4, Rhizoma Sparganii head; 5, sleeve; 6, hands handle; 7, the second gear; 8, drill bit; 9, the first gear; 10, drill bit tail cap; 11, screw thread bayonet socket.

Detailed description of the invention

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains this utility model, be not used to limit this utility model.

Embodiment: as Figure 1-4, this utility model provides a kind of right angle bur, including main part 1 and bit part 2, described main part 1 is hollow structure, described main part 1 side is provided with screw thread bayonet socket 11, described main part 1 is connected to handle 6 and sleeve 5, rotation bar 3 it is socketed with in described sleeve 5, described rotation bar 3 one end is provided with the second gear 7, described rotation bar 3 other end is provided with Rhizoma Sparganii head 4, described main part 1 is fastened by drill bit tail cap 10 bit part 2, and described bit part 2 is made up of drill bit 8 and the first gear 9.

Described drill bit 8 is arranged on the middle part of the first gear 9, the hole that described drill bit 8 is arranged in the middle part of drill bit tail cap 10.

Described first gear 9 agrees with described second gear 7 phase.

Described drill bit 8 is fixed as one with described first gear 9.

Bit part 2: this part is terminal part, it is made up of the drill bit 8 of the first gear 9, it is fixed as one between first gear 9 and drill bit 8, drill bit 8 specification is with effective drillable length for standard, there is 10mm, 15mm, 20mm equal-specification respectively, to tackle different narrow spaces, diameter is conventional 0.25mm, 0.32mm.

Main part 1: be combined into "T"-shaped by two hollow circular cylinders, the cylinder receiving drill bit walked crosswise, the cylinder of stringer holds the toothed bar of end (rotation axle) being connected with electric drill; To the direction pressurization of boring when the subsidiary one handle in side is beneficial to grip and hole; Drill bit tail cap 10: this tail cap is used for fixed drill bit 8 and easily disassembled and replacing different model drill bit 8;And be designed to dismountable another object is that and easily clean drill bit internal structure; Rotate axle 3: this rotation axle 3 is one be about 15-20cm, the straight-bar that diameter mates compared with the stringer cylinder of main part, one end has 2cm length to be prismatic, convenient coupling electric drill interface, the other end about 0.5cm transverse section is gear-like, it is simple to agree with the gear of bit part.

This utility model this utility model is fractured (such as pelvis medial wall, four Bian Ti etc.) for deep, or the obese patient of fracture of pelvis; Or when relatively narrow and small position, space (such as during hip replacement, the boring of mortar cup is fixed), the stop of surrounding soft tissue or adjacent material, required osseous tunnel cannot be got out, or cause that osseous tunnel deviates the problems such as set direction because stopping, relatively conventional drill bit and spring Universal drill, this design more can effectively solve the problems referred to above, reduces the tractive to soft tissue, otch can be less, and what reduces the damage to soft tissue from; Operate and be easier to, make surgical effect better.

Last it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this utility model, although this utility model being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature carries out equivalent replacement. All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.

Claims

1. a right angle bur, including main part (1) and bit part (2), it is characterized in that, described main part (1) is hollow structure, described main part (1) side is provided with screw thread bayonet socket (11), described main part (1) is connected to handle (6) and sleeve (5), rotation bar (3) it is socketed with in described sleeve (5), described rotation bar (3) one end is provided with the second gear (7), described rotation bar (3) other end is provided with Rhizoma Sparganii head (4), described main part (1) is fastened by drill bit tail cap (10) bit part (2), described bit part (2) is made up of drill bit (8) and the first gear (9).

2. a kind of right angle bur according to claim 1, it is characterised in that described drill bit (8) is arranged on the middle part of the first gear (9), the hole that described drill bit (8) is arranged through described drill bit tail cap (10) middle part.

3. a kind of right angle bur according to claim 1, it is characterised in that described first gear (9) is agreed with mutually with described second gear (7).

4. a kind of right angle bur according to claim 1, it is characterised in that described drill bit (8) and described first gear (9) are fixed as one.