CN207253354U - Medical electric saw - Google Patents

Abstract

The utility model discloses medical electric saw, mainly it is made of the housing of diamond wire, driving device and receiving driving device, the front portion of the housing is irdome, and rear portion is Handheld Division, the irdome is the cavity of a semi-circular shape, and long and narrow through hole is provided with the inner arc face of the cavity；Further include diamond wire positioner, the push rod that the diamond wire positioner is inserted into the cavity including one end and the depth adjustment element for controlling push rod insertion cavity depth, push rod is flexible into radian corresponding with inside annular housing, the front end of the push rod is provided with tension spring, one end of the tension spring is deep into cavity from the through hole and is connected with push rod end, the forward end connection of the other end and diamond wire.The medical electric saw of the utility model, the diamond wire for being used to cut in it may be implemented in the arching trajectory movement in semi-annular chambers body, so as to not only increase the security of sawing, while may be implemented in and osteodiastasis surgical work is disposably completed in small space.

Description

Medical electric saw

Technical field

The utility model is on a kind of bone surgery instrument, more particularly to a kind of medical electric saw.

Background technology

The shortcomings that bone saw for medical purposes is common surgical instrument in bone surgery, existing bone saw for medical purposes：1) security of saw blade Difference cannot carry out disposable osteodiastasis work in surgical environments with respect to narrow space, and in order to increase operative space, it is necessary to Unnecessary cutting is carried out to the muscle of patient, while also needs to coordinate muscular retractor to draw muscle, is fully being exposed Saw bone work can be just smoothly completed under conditions of surgical field of view；2) existing bone saw for medical purposes function is relatively simple, during saw Easily it is dislocated, causes to slip up, influences being normally carried out for operation.

Utility model content

In view of this, the advantages of the purpose of this utility model is to provide a kind of medical electric saw, the medical electric saw is can be in hand Art environment carries out disposable osteodiastasis work with respect to narrow space, and the bone face after cutting is smooth, does not misplace, and solves existing Bone saw can not be easily left during surgical environments carry out disposable deep mask work and saw with respect to narrow space Dextroposition, causes the technical problem of error.

The utility model solves above-mentioned technical problem by following technological means：

The medical electric saw of the utility model, the driving device mainly moved back and forth by diamond wire, driving diamond wire, Yi Jirong Receive the housing composition of driving device, the front portion of the housing be irdome, rear portion is Handheld Division, and the irdome is a semi-circular shape Cavity, is provided with long and narrow through hole on the inner arc face of the cavity；Further include diamond wire positioner, the diamond wire positioning The push rod that device is inserted into the cavity including one end and the depth adjustment element for controlling push rod insertion cavity depth, institute State push rod to be made of elastic material, push rod is flexible to be set into radian corresponding with inside annular housing, the front end of the push rod There is tension spring, one end of the tension spring is deep into cavity from the through hole to be connected with push rod end, the other end and diamond wire Forward end connects.

Further, the driving device includes motor, the retarder being sequentially connected with motor, the power output with retarder Hold the bent axle being sequentially connected, the tail end connection of the bent axle and diamond wire.

Further, the driving device further includes the adjusting mechanism elastic for adjusting driving-chain, the adjusting mechanism bag Include swing arm, second back-moving spring, breast wheel and fixed pulley, one end axial restraint connection of the breast wheel and swing arm circumferentially rotates Coordinate, the other end of swing arm is hinged on housing, and one end of the second back-moving spring is connected on housing, second back-moving spring The other end it is butted in swing arm, the diamond wire connects around after breast wheel and fixed pulley with tension spring successively.

Further, the depth adjustment element includes hand pressure handle and (the first back-moving spring, the hand pressure handle and push rod End is fixedly connected, and described (the first back-moving spring one end is connected with housing, and the other end is butted on hand pressure handle.

Further, the Handheld Division is provided with an adjusting cavity swung wherein for swing arm, the adjusting cavity with it is tight Set by irdome, the fixed pulley is arranged on the connecting place of adjusting cavity and irdome.

Further, the switch for controlling motor circuit break-make is further included, the switch is arranged on hand pressure handle.

Further, the push rod is made of spring steel material.

The beneficial effects of the utility model：The medical electric saw of the utility model, it is mainly reciprocal by diamond wire, driving diamond wire The driving device of movement and the housing composition for accommodating driving device, the front portion of the housing is irdome, and rear portion is Handheld Division, The irdome is the cavity of a semi-circular shape, and long and narrow through hole is provided with the inner arc face of the cavity；Further include diamond wire Positioner, the diamond wire positioner include the push rod that is inserted into the cavity of one end and for controlling push rod to be inserted into chamber The depth adjustment element of body depth, the push rod are made of elastic material, and push rod is flexible into corresponding with inside annular housing Radian, the front end of the push rod are provided with tension spring, and one end of the tension spring is deep into from the through hole in cavity and push rod end Portion connects, and the forward end of the other end and diamond wire connects.The medical electric saw of the utility model, is used for the diamond wire cut in it The arching trajectory movement in semi-annular chambers body is may be implemented in, so as to not only increase the security of sawing, while may be implemented in narrow Osteodiastasis surgical work is disposably completed in small space.

Brief description of the drawings

The utility model is further described with reference to the accompanying drawings and examples.

Fig. 1 is the structure diagram of the medical electric saw of the utility model, and push rod front end pushes to forward the front end of irdome in figure；

Fig. 2 is the structure diagram of the medical electric saw of the utility model, and push rod front end is dropped back to the middle part of irdome in figure.

Embodiment

The utility model is described in detail below with reference to attached drawing：

As shown in Figs. 1-2, the medical electric saw in the present embodiment, the drive mainly moved back and forth by diamond wire 1, driving diamond wire Dynamic device 2 and the housing 3 of receiving driving device form, wherein the surface of the diamond wire 1 is bonded with diamond particles；

The driving device 2 includes motor, the retarder being sequentially connected with motor, the power output end transmission with retarder The bent axle 9 of connection, the bent axle 9 are connected with the tail end of diamond wire 1；The driving device further includes elastic for adjusting driving-chain Adjusting mechanism, the adjusting mechanism includes swing arm 10, second back-moving spring 11, breast wheel 12 and fixed pulley 13, the centre Wheel 12 is connected with one end axial restraint of swing arm 10 and circumferentially rotates cooperation, and the other end of swing arm 10 is hinged on housing, and described the One end of two resetting springs 11 is connected on housing, and the other end of second back-moving spring 11 is butted in swing arm 10, the Buddha's warrior attendant Line 1 after fixed pulley 13 with tension spring 6 successively around breast wheel 12 with connecting；

The front portion of the housing is irdome 7, and rear portion is Handheld Division 8, and the Handheld Division is provided with one and exists for swing arm 10 The adjusting cavity 16 wherein swung, for the adjusting cavity 16 with being set against irdome 7, the fixed pulley 13 is arranged on adjusting cavity 16 and line The connecting place of cover 7；The irdome 7 is the cavity of a semi-circular shape, and long and narrow through hole is provided with the inner arc face of the cavity 4；Diamond wire positioner is further included, the diamond wire positioner includes push rod 5 and the use that one end is inserted into the cavity In the depth adjustment element of control push rod insertion cavity depth, the depth adjustment element is resetted including hand pressure handle 14 and first Spring 15, the hand pressure handle 14 are fixedly connected with the end of push rod 5, and described 15 one end of (the first back-moving spring is connected with housing 3, separately One end is butted on hand pressure handle 14；The push rod 5 is made of spring steel material, push rod 5 it is flexible into annular housing inside phase The radian answered, the front end of the push rod 5 are provided with tension spring 6, one end of the tension spring 6 from the through hole be deep into cavity with 5 end of push rod connects, and the other end is connected with the forward end of diamond wire 1.Further include the switch for controlling motor circuit break-make 17, the switch 17 is arranged on hand pressure handle 14,17 preferable Piezoelectric switches of the switch.

The application method and operation principle of the medical electric saw of the utility model are as follows：First, with separation bone tissue periphery Muscle cuts an opening that can accommodate irdome entrance, is then sent into irdome by the opening and catches on separated bone tissue, Power on, drive diamond wire to move back and forth by switching control driving device, promote push rod forward by pressing hand pressure handle, gold Firm line is moved back and forth under the pulling of push rod while being moved to irdome front end, so as to complete in relatively narrow and small operative space The disposable cutting separating operation for completing targeted bony tissue.Due to the chamber that the irdome of the medical electric saw of the utility model is semi-circular shape Body, if keeping irdome is motionless to will be unable to disposable sawing bone tissue completely in cutting, so in order to ensure disposable sawing Bone tissue centered on bone tissue in cutting, it is necessary to swing Handheld Division.

Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng The utility model is described in detail according to preferred embodiment, it will be understood by those of ordinary skill in the art that, can be to this The technical solution technical scheme is modified or replaced equivalently of utility model, without departing from the objective and model of technical solutions of the utility model Enclose, it should all cover among the right of the utility model.

Claims (7)

1. a kind of medical electric saw, the driving device (2) and receiving mainly moved back and forth by diamond wire (1), driving diamond wire is driven Housing (3) composition of dynamic device, it is characterised in that：The front portion of the housing is irdome (7), and rear portion is Handheld Division (8), the line The cavity that (7) are a semi-circular shape is covered, long and narrow through hole (4) is provided with the inner arc face of the cavity；Further include diamond wire Positioner, the diamond wire positioner include one end and are inserted into push rod (5) in the cavity and for controlling push rod to insert Enter the depth adjustment element of cavity depth, the push rod (5) is made of elastic material, push rod (5) it is flexible into annular housing Internal corresponding radian, the front end of the push rod (5) are provided with tension spring (6), and one end of the tension spring (6) is deep from the through hole Enter into cavity and be connected with push rod (5) end, the other end is connected with the forward end of diamond wire (1).

2. medical electric saw according to claim 1, it is characterised in that：The driving device (2) includes motor, is passed with motor The retarder of dynamic connection, the bent axle (9) with the power output end drive connection of retarder, the bent axle (9) and diamond wire (1) Tail end connects.

3. medical electric saw according to claim 2, it is characterised in that：The driving device is further included for adjusting driving-chain Elastic adjusting mechanism, the adjusting mechanism include swing arm (10), second back-moving spring (11), breast wheel (12) and fixed pulley (13), the breast wheel (12) is connected with one end axial restraint of swing arm (10) circumferentially rotates cooperation, the other end of swing arm (10) It is hinged on housing, one end of the second back-moving spring (11) is connected on housing, the other end of second back-moving spring (11) It is butted in swing arm (10), the diamond wire (1) successively around breast wheel (12) and fixed pulley (13) afterwards with tension spring (6) even.

4. medical electric saw according to claim 3, it is characterised in that：The depth adjustment element include hand pressure handle (14) with And (the first back-moving spring (15), the hand pressure handle (14) are fixedly connected with the end of push rod (5), the (the first back-moving spring (15) One end is connected with housing (3), and the other end is butted on hand pressure handle (14).

5. medical electric saw according to claim 4, it is characterised in that：The Handheld Division is provided with one for swing arm (10) The adjusting cavity (16) swung wherein, for the adjusting cavity (16) with being set against irdome (7), the fixed pulley (13) is arranged on tune Save the connecting place of chamber (16) and irdome (7).

6. medical electric saw according to claim 5, it is characterised in that：Further include the switch for controlling motor circuit break-make (17), the switch (17) is arranged on hand pressure handle (14).

7. medical electric saw according to claim 5, it is characterised in that：The push rod (5) is made of spring steel material.