CN210494174U - Miniature vertical electric bone saw - Google Patents

Abstract

The utility model provides a miniature vertical electric bone saw, which comprises a first shell, a second shell, a battery, a switch, a motor, a transmission component, a cover and a saw blade, wherein the second shell is connected with the first shell through a screw; be provided with first engaging lug on the second shell, be connected with clean subassembly with first engaging lug, clean subassembly includes the casing, is provided with the collecting vat in the casing, is provided with the brush hair on the collecting vat, and the brush hair contacts with the saw bit, is provided with the third engaging lug on the casing, and the third engaging lug passes through the screw connection with first engaging lug. The utility model discloses with saw bit and hand direction parallel arrangement, solve and hold the difficult problem of control to set up clean subassembly, solve the clear problem of saw bit.

Description

Miniature vertical electric bone saw

Technical Field

The utility model relates to an electronic bone saw technical field, in particular to electronic bone saw of miniature vertical type.

Background

In modern surgical operations, minimally invasive and refined operations are performed while the safety and the effect are ensured, so that the pain of a patient can be relieved, the damage to surrounding tissues is reduced, the postoperative recovery effect is improved, and complications are reduced. In the traditional bone cutting instruments for orthopedics department, oscillating saws, wire saws and osteotomes are mostly used. The swing saw has large volume and noise, resonance phenomenon and irregular cutting surface; the saw cut is large and has more chips, the cutting precision is difficult to master, the surrounding tissues are easy to be damaged by careless operation, and the safety coefficient is poor; the use of a wire saw is time consuming and labor intensive, prolongs the operation time, and the wire saw itself risks being loose and broken. The osteotome can be used for cutting bones, slotting and fetching bone blocks, but the bone is split due to the brittleness of the bone and the over-strong force, so that the operation fails, and the osteotome cannot be operated at a tiny part and need a larger operation incision, which is different from the minimally invasive operation pursued by modern medicine, so that an electric bone saw capable of implementing the minimally invasive operation is urgently needed. In the bone saw capable of implementing minimally invasive surgery in the market at present, the saw blade is arranged perpendicular to the handle, the stress direction of the handle is perpendicular to the saw blade by the arrangement method, accurate control is difficult to achieve in actual operation, and the bone saw is not beneficial to surgery. In addition, the bone saw on the market at present basically has no function of cleaning the saw blade, and fragments of bones are easy to enter into tissues of patients along with the saw blade in the operation process, so that secondary infection is caused.

Disclosure of Invention

In view of this, the utility model provides an electronic bone saw of miniature vertical type with saw bit and the direction parallel arrangement of holding, solves and holds the difficult problem of control to set up clean subassembly, solve the clear problem of saw bit.

The technical scheme of the utility model is realized like this: a miniature vertical electric bone saw comprises a first shell, a second shell, a battery, a switch, a motor, a transmission assembly, a cover and a saw blade, wherein a plurality of screw posts are arranged in the first shell, a plurality of screw holes are formed in the second shell, the second shell is connected with the first shell through screws, a second connecting lug is arranged on the motor, and the motor is connected in the first shell through the second connecting lug and the screw posts;

the transmission assembly comprises a first bearing, a first bevel gear, a second bearing, a second bevel gear and a driven shaft, the first bearing and the second bearing are arranged in the first shell, a motor shaft of the motor penetrates through the first bearing to be connected with the first bevel gear, the driven shaft penetrates through the second bearing to be connected with the second bevel gear, the first bevel gear is meshed with the second bevel gear, the cover penetrates through the driven shaft to be in threaded connection with the first shell and the second shell, and the saw blade is connected with the driven shaft and locked through a nut;

the second shell is provided with a switch connecting hole, the switch is connected with the second shell through the switch connecting hole, the end surface of the battery is provided with a guide edge, the guide edge is symmetrically provided with buckles, the first shell and the second shell are respectively provided with buckle holes, the battery is connected with the first shell and the second shell through the buckles, and the motor is electrically connected with the battery through the switch;

the cleaning assembly comprises a shell, a collecting groove is arranged in the shell, bristles are arranged on the collecting groove and are in contact with the saw blade, a third connecting lug is arranged on the shell and is connected with the first connecting lug through screws.

Further, the outer surfaces of the first shell, the second shell and the battery are wavy.

Further, still be provided with a reverse side on the clean subassembly, be provided with the spout on the reverse side, with spout screwed connection has a spacing, spacing includes bracing piece and spacing frame, be provided with a plurality of through-holes on the bracing piece, spacing frame cover is in the saw piece.

Further, the number of the through holes is 2.

Furthermore, the limiting frame is made of plastic materials.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up transmission assembly for the saw bit is parallel with the direction of holding, and the atress direction of saw bit is parallel with the direction of hand, changes in holding the operation, improves the operation precision, is favorable to implementing minimal access surgery. And through setting up clean subassembly, clean the saw bit through the brush hair on the clean subassembly, at the operation in-process, clear up the bone piece that smugglies secretly on the saw bit in time, avoid it to get into patient's tissue along with the saw bit, cause secondary infection.

Through connecting spacing on clean subassembly to the connected form of adoption spout can realize depth of cut's regulation, makes the bone saw use more nimble, avoids causing unnecessary injury to the patient, and the suitability is wider.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic structural view of the cleaning assembly of the present invention.

Fig. 4 is a cross-sectional view of the cleaning assembly of the present invention.

In the figure, 1 is a first housing, 11 is a screw column, 12 is a fastening hole, 2 is a second housing, 21 is a screw hole, 22 is a first connecting lug, 23 is a switch connecting hole, 3 is a battery, 31 is a fastener, 32 is a guide edge, 4 is a switch, 5 is a motor, 51 is a motor shaft, 52 is a second connecting lug, 6 is a transmission component, 61 is a first bearing, 62 is a first bevel gear, 63 is a second bearing, 64 is a second bevel gear, 65 is a driven shaft, 7 is a cover, 8 is a saw blade, 9 is a cleaning component, 91 is a housing, 92 is a collecting tank, 93 is a brush hair, 94 is a third connecting lug, 95 is a reverse edge, 96 is a sliding groove, 10 is a limiting frame, 101 is a supporting rod, and 102 is a limiting frame.

Detailed Description

In order to better understand the technical content of the present invention, the following embodiments are provided, and the present invention is further described with reference to the accompanying drawings.

Example 1

Referring to fig. 1 to 4, a miniature vertical electric bone saw comprises a first housing 1, a second housing 2, a battery 3, a switch 4, a motor 5, a transmission assembly 6, a cover 7 and a saw blade 8, wherein a plurality of screw posts 11 are arranged in the first housing 1, a plurality of screw holes 21 are arranged on the second housing 2, the second housing 2 is connected with the first housing 1 through screws, a second connection lug 52 is arranged on the motor 5, and the motor 5 is connected in the first housing 1 through the second connection lug 52 and the screw posts 11 by screws;

the transmission assembly 6 comprises a first bearing 61, a first bevel gear 62, a second bearing 63, a second bevel gear 64 and a driven shaft 65, the first bearing 61 and the second bearing 63 are arranged in the first casing 1, a motor shaft 51 of the motor 5 is connected with the first bevel gear 62 through the first bearing 61, the driven shaft 65 is connected with the second bevel gear 64 through the second bearing 63, the first bevel gear 62 is meshed with the second bevel gear 64, the cover 7 is in threaded connection with the first casing 1 and the second casing 2 through the driven shaft 65, and the saw blade 8 is connected with the driven shaft 65 and locked through a nut; by adopting the engagement of the first bevel gear 62 and the second bevel gear 64, the direction of the saw blade 8 is parallel to the holding direction, so that the holding operation is easier, the operation precision is improved, and the minimally invasive surgery is facilitated.

The second housing 2 is provided with a switch connecting hole 23, the switch 4 is connected with the second housing 2 through the switch connecting hole 23, the end surface of the battery 3 is provided with a guide edge 32, the guide edge 32 is symmetrically provided with buckles 31, the first housing 1 and the second housing 2 are respectively provided with buckle holes 12, the battery 3 is connected with the first housing 1 and the second housing 2 through the buckles 31, and the motor 5 is electrically connected with the battery 3 through the switch 4; through adopting the mode of buckle to connect, be convenient for battery 3's dismantlement.

The second housing 2 is further provided with a first connecting lug 22, the first connecting lug 22 is connected with a cleaning assembly 9, the cleaning assembly 9 comprises a housing 91, a collecting groove 92 is formed in the housing 91, bristles 93 are arranged on the collecting groove 92, the bristles 93 are in contact with the saw blade 8, a third connecting lug 94 is arranged on the housing 91, and the third connecting lug 94 is connected with the first connecting lug 22 through screws. Through setting up clean subassembly 9, brush hair 93 through on the clean subassembly 9 cleans saw bit 8, and at the operation in-process, with the bone piece that smugglies secretly on the saw bit 8 in time clear up, avoid it to get into patient's tissue along with saw bit 8, cause secondary infection.

The working principle is as follows:

the battery 3 provides power for the motor 5, the switch 4 is turned on, the motor shaft 51 rotates to drive the first bevel gear 62 to rotate, the second bevel gear 64 is driven to drive the driven shaft 65 to rotate, and the saw blade 8 is driven to rotate to work. In the process of cutting the bone, the saw blade 8 will be entrained with bone chips, when the saw blade 8 rotates to pass through the cleaning assembly 9, the brush hair 93 on the cleaning assembly 9 brushes the bone chips on the saw blade 8, and the bone chips fall into the collecting groove 92, so as to clean the saw blade 8. When the operation is completed and the cleaning assembly 9 and the saw blade 8 need to be cleaned, the cleaning assembly 9 is detached from the first connecting ear 22 for cleaning, and the nut on the saw blade 8 is loosened to remove the saw blade 8 for cleaning.

Preferably, the outer surfaces of the first case 1, the second case 2 and the battery 3 are waved. The outer surface adopts the wave, makes things convenient for snatching of hand for it feels better to hold.

Example 2

Preferably, the cleaning assembly 9 is further provided with a reverse edge 95, the reverse edge 95 is provided with a sliding groove 96, the sliding groove 96 is in screw connection with a limiting frame 10, the limiting frame 10 comprises a supporting rod 101 and a limiting frame 102, the supporting rod 101 is provided with a plurality of through holes, and the limiting frame 102 is sleeved in the saw blade 8. When the position of the limiting frame 10 needs to be adjusted, the screw on the sliding groove 96 is loosened, the required position is adjusted, and then the screw is locked, so that the adjustment is convenient. Through connect spacing 10 on clean subassembly 9 to adopt the connected form of spout 96, can realize depth of cut's regulation, make the bone saw use more nimble, avoid causing unnecessary injury to the patient, the suitability is wider.

Preferably, the number of the through holes is 2. Adopt the form of 2 through-holes to connect, avoid spacing 10 to rotate for the location is more accurate.

Preferably, the limiting frame 10 is made of plastic. Because the limiting frame 10 directly contacts the operation position of the patient, the plastic material can avoid unnecessary infection caused by rusting of a metal material and the like.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. A miniature vertical electric bone saw is characterized by comprising a first shell, a second shell, a battery, a switch, a motor, a transmission assembly, a cover and a saw blade, wherein a plurality of screw posts are arranged in the first shell, a plurality of screw holes are formed in the second shell, the second shell is connected with the first shell through screws, a second connecting lug is arranged on the motor, and the motor is connected in the first shell through the second connecting lug and the screw posts;

the transmission assembly comprises a first bearing, a first bevel gear, a second bearing, a second bevel gear and a driven shaft, the first bearing and the second bearing are arranged in the first shell, a motor shaft of the motor penetrates through the first bearing to be connected with the first bevel gear, the driven shaft penetrates through the second bearing to be connected with the second bevel gear, the first bevel gear is meshed with the second bevel gear, the cover penetrates through the driven shaft to be in threaded connection with the first shell and the second shell, and the saw blade is connected with the driven shaft and locked through a nut;

the second shell is provided with a switch connecting hole, the switch is connected with the second shell through the switch connecting hole, the end surface of the battery is provided with a guide edge, the guide edge is symmetrically provided with buckles, the first shell and the second shell are respectively provided with buckle holes, the battery is connected with the first shell and the second shell through the buckles, and the motor is electrically connected with the battery through the switch;

the cleaning assembly comprises a shell, a collecting groove is arranged in the shell, bristles are arranged on the collecting groove and are in contact with the saw blade, a third connecting lug is arranged on the shell and is connected with the first connecting lug through screws.

2. The miniature upright electric bone saw of claim 1, wherein the outer surfaces of said first housing, said second housing and said battery are corrugated.

3. The miniature upright electric bone saw as recited in claim 1, wherein said cleaning assembly further comprises a reverse side, said reverse side having a sliding groove, a limiting frame screwed to said sliding groove, said limiting frame comprising a supporting rod and a limiting frame, said supporting rod having a plurality of through holes, said limiting frame being fitted in said saw blade.

4. The miniature upright electric bone saw of claim 3, wherein the number of said through holes is 2.

5. The miniature upright electric bone saw as defined in claim 4, wherein said limiting frame is made of plastic.

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