CN88204356U - Multi-functional electrical bone saw - Google Patents

Abstract

The utility model relates to a multi-functional electrical bone saw. An eccentric rotary shaft at the front end of the multi-functional electrical bone saw is drove by a rotary micromotor, and upright cutting is carried out by the radial wobble of a side position saw head. The multi-functional electrical bone saw is mainly used for craniotomy of medicolegal physician and pathological mechanism, spinal column cutting, bone window opening, exoskeletal plate grinding, materials getting of trace examining, etc. A skull fixator matched and used with the craniotomy by bone saw is formed by a leading screw, an upper and lower mobile splints, a hoist tube and a carrier frame, which is used to fix the skull during the craniotomy.

Description

Multi-functional electrical bone saw

This utility model and legal medical expert saw bone, pathological anatomy, and it is relevant that trace is searched material.

At present, open cranium in legal medical expert and pathological anatomy, bone dissection such as saw spinal column etc. is still prolonged with traditional panel saw, and time-consuming, effort, and can not solve the window that opens seam, grind osteocomma is got in the bone foreign body and trace and searched material.Also do not have a kind of device of fixedly skull when opening cranium, head is a spheroplast, and is all insecure with other pad addendums such as sleepers, brings very big inconvenience to real work.

The purpose of this utility model is to have designed in order to solve above-mentioned difficulties that to have a volume little, in light weight, easy to carry, saves time, laborsaving saw skull safety, the multifunctional motor-driven bone saw that skull is fixed.

Basic design of the present utility model is that the saw head adopts the straight formula cutting in side position, with the eccentric barrier plate Cutting Control degree of depth, two saws are by the spline screw rod, middle adjustable sleeve pipe saw spinal column, peace emery wheel mill osteocomma, more than all by sawing micro machine in the body, eccentric shaft rotates, fork is broadcast in transmission, cuts thereby produce to radially wobble, and reduces the spittle during use.

It is arc-shaped bracket according to the skull configuration design that skull fixture designs substantially, there is fixedly head of the band of clamping the carriage upper end, and in below the carriage center, having the band screw thread lifting tube, so that regulate the height of skull apart from dissecting table, and move adjusting according to the thickness of dissecting table by last lower plate, on the leading screw, the lower plate bottom of the reservior is tightened by nut.

Multifunctional motor-driven bone saw shell system is by die casting aluminium and mould firmly and any its material of suitable manufacturing gets final product.

Now by optimum implementation narration this utility model.

Fig. 1 is the side position profile and a saw outward appearance of this saw.

Handle is slightly straight inclined 1,2 is that switch 3 is the micromachine of body at the bottom of the handle, 4 power transmission shafts for the saw body, front end is an eccentric shaft, 5 for broadcasting fork, and the reciprocating motion of broadcasting fork makes the saw head produce cutting, and 6 is side position straight formula saw head, 7 is the eccentric barrier plate of the Cutting Control degree of depth, regulates by width between edge, the eccentric end and the saw blade.8 is the saw blade of different model, changes according to different purposes.9 is adjustable-width sleeve pipe between two saw blades, and 10,11 is two saw blades, and 12 for installing emery wheel, and 13 is the adnexa of fixed emery wheel.

Fig. 2 is the front elevation of skull fixture.

1 be on the leading screw adjustable nut with fixing lower plate, make fixed, the 2nd, the lower plate of bottom tape pool can upwards be divided a word with a hyphen at the end of a line clamping under the effect of nut according to the thickness of dissecting table.The 3rd, leading screw about adjustable diameter and screw adjusting, is fastened the centre strut between lower plate, is regulated by screw thread, and 4 is train wheel bridge, and it can move up and down slightly, is fixed by nut.5 is lifting tube, interior band screw thread, so but the up-down adjustment support height, 6 is arc-shaped bracket, holds in the palm attached skull occipitalia, 7 for clamping band, by the fixing skull first half of 8 butterfly hold-down nuts.

In use the bone saw joint is inserted three sockets of 220V voltage, can push handle bottom on and off switch at any time, according to different needs the different model saw blade is installed, when opening cranium, earlier the eccentric maximum edge of eccentric barrier plate is transferred to the saw blade bottom, according to the skull degree of depth handle of dividing a word with a hyphen at the end of a line gradually, thus the scalable weight.The mill osteocomma can be placed in center, emery wheel hole in the axle, and fixing fitting is good and sound, uses by outer nut is fixing.Two saws use also can regulate width by sleeve pipe between saw.

When using skull fixture, according to the thickness on dissecting table edge train wheel bridge is taken in the dissecting table upper edge, then lower plate is pushed to the dissecting table lower edge, be tightened with nut.Suitably regulate lifting tube according to the head height, the clamping band with head is strained and fixed then.

Claims (10)

1, a kind of multifunctional motor-driven bone saw, it is made up of bone saw and holder two parts, it is characterized in that said bone saw is by a micro machine, eccentric drive shaft, broadcast fork, side position saw head and different size saw blade, emery wheel, adjustable two saw, eccentric barrier plate constitutes, and the skull fixture part is an axis body with the leading screw, and is screwed by nut, make lower plate involutory, with carriage, clamp band, lifting tube constitutes adjustable skull fixture, be applicable to various dissection beds and interim plank frame when dissecting skull, according to the thickness adjusted nut, on move lower plate, reach fixed, and the lifting tube bottom carriage is regulated height, the fastening wing nut of right-hand member.

2, bone saw is characterized in that saidly when opening cranium according to claim 1, and the saw blade inner face adds eccentric resistance plate washer, according to different skull thicknesses, begins the handle cutting that moves up with eccentric maximum, advances rashly injured brain tissue to avoid cutting.

3, bone saw as claimed in claim 1 is characterized in that the straight formula cutting in a said saw side position, can move freely.

4, bone saw as claimed in claim 1 is characterized in that said direct handling type handle cutting utilization flexibly, is fit to spheroid and cuts and use among a small circle.

5, bone saw as claimed in claim 1 is characterized in that the adjustable saw spinal column of said two saws is fit to the spinal column cutting of different in width, by wounded in the battle key screw rod, regulates width by the different model intermediate casing, cuts away spinous process and can once finish, and is convenient to check spinal cord.

6, skull fixture as claimed in claim 1 is characterized in that said spiral lifting tube adjusting bearing height, is convenient to dissect.

7, skull fixture is characterized in that having on the carriage fixedly skull of clamping band according to claim 1, regulates fixing arbitrarily according to size.

8, skull fixture as claimed in claim 1 is characterized in that lower plate is the contact on clamping dissecting table edge, regulates thickness by leading screw and nut, reaches fastening to revolve on the nut at last.

9, carriage as claimed in claim 1 is characterized in that said carriage is the arcuate structure that the shape according to the number of people designs, and brings fixing by clamping.

10, bone saw as claimed in claim 1 is characterized in that described bone saw shell system is by die casting aluminium or mould firmly and any its material of suitable manufacturing and making.

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