CN104207818B - A kind of orthopedic surgical saw blade - Google Patents

Abstract

The invention discloses a kind of orthopedic surgical saw blade, several bonding saw blades of sheet are connected and for connecting the circle connection tool rest of this saw blades including by a pottery saw head and a hard alloy, described circle connects left connection sheet and the right connection sheet that tool rest includes being threaded connection, described hard alloy connects left half and the right half that sheet includes mutually splicing, it is provided with connecting groove outside described left half and right half, being provided with inverted U runner in described saw blade, described left connection sheet inner blocking type is connected to a coolant recirculation pump and connects；The present invention has good radiating effect, and changes conveniently, is also significantly better than like product on cost.

Description

Saw blade for orthopedic surgery

technical field

The invention relates to a saw blade, in particular to a saw blade for orthopedic surgery.

Background technique

In some orthopedic operations, such as amputation and other orthopedic operations, saw blades are essential. At present, the shape of the saw blades used in orthopedic operations in hospitals is the same as that of conventional saw blades. The difference lies in the hygiene level of the saw blade and the connecting device of the saw blade. Higher and better saw blade material. At present, in orthopedic surgery, a kind of wheel saw blade is mostly used. The main principle is to achieve the purpose of cutting bones through rapid selection. Its cutting efficiency is high, so it is also popular, but the disadvantage is that its The heat dissipation effect is poor, and when only one sawtooth is damaged in the entire wheel saw blade, the entire wheel saw blade must be replaced, so the cost is relatively high.

Contents of the invention

In view of the above problems, the present invention proposes a saw blade for orthopedic surgery, which has a good heat dissipation effect and is easy to replace.

In order to achieve the above-mentioned technical purpose, the present invention adopts a kind of orthopedic surgical saw blade, including several surgical saw blades bonded by a ceramic saw head and a hard alloy connecting piece and a circular ring for connecting the surgical saw blade. The circular knife seat includes a left connecting piece and a right connecting piece connected by threads, and the circular knife seat has the ability to accommodate the surgical saw blade when the left and right connecting pieces are fully connected, and make the ceramic saw The groove exposed by the head; the hard alloy connecting piece includes a left half piece and a right half piece that can be spliced with each other. When fully connected, the connecting lugs that can be fully embedded in the connecting groove; the ceramic saw head, the left half, and the right half are all provided with flow channels, and when the ceramic saw head, the left half, and the right half are combined The flow channel has just been spliced into a complete, mutually coherent inverted U-shaped flow channel, and a coolant circulating pump is snap-connected in the left connecting piece. The specific position of the cooling liquid circulating pump is: when the left and right connecting pieces are mutually Connection and when the surgical saw blade is connected and fixed in the left and right connecting pieces, the outlet and the inlet of the cooling liquid circulation pump respectively form a seamless connection with the two openings at the bottom of the inverted U-shaped flow channel.

The ceramic saw head and the tungsten carbide connecting piece are connected by bonding. If the ceramic saw head is damaged, just replace a new ceramic saw head and bond it reasonably; The coolant circulation pump will inject the coolant into the inverted U-shaped flow channel to form a coolant circulation, which fully guarantees the cooling of the saw blade during work, thereby prolonging the life of the saw blade; if the ceramic saw head and the hard alloy connecting piece If all of them are broken or one of them is broken, a new saw blade can be replaced as long as the circular connecting knife seat is disassembled, which greatly saves the cost.

Description of drawings

What shown in Fig. 1 is the side sectional structural drawing of the present invention;

Shown in Fig. 2 is the overall structural diagram of the present invention;

Among them, 1. ceramic saw head; 2. left connecting piece; 3. right connecting piece; 4. groove; 5. left half piece; 6. right half piece; 7. connecting groove; 8. connecting convex piece; 9. inverted U-shaped flow channel; 10, coolant circulation pump; 11, outlet; 12, inlet; 13, circular connection tool seat.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

1 and 2, it can be known that an orthopedic surgical saw blade includes several surgical saw blades bonded by a ceramic saw head 1 and a cemented carbide connecting piece and a circular circular ring for connecting the surgical saw blades. Connecting knife seat 13, this circular connecting knife seat 13 comprises left connecting piece 2 and right connecting piece 3 connected by thread, and this circular connecting knife seat 13 has when left connecting piece 2, right connecting piece 3 are fully connected. Groove 4 that accommodates the surgical saw blade and exposes the ceramic saw head 1; the cemented carbide connecting piece includes a left half piece 5 and a right half piece 6 that can be spliced with each other, and a connecting groove 7 is provided on the outside of the left half piece 5 and the right half piece 6 , the inside of the left connecting piece 2 and the right connecting piece 3 is provided with a connecting lug 8 that can be completely embedded in the connecting groove 7 when the left connecting piece 2 and the right connecting piece 3 are fully connected.

There are flow channels in the ceramic saw head 1, the left half piece 5, and the right half piece 6, and when the ceramic saw head 1, the left half piece 5, and the right half piece 6 are combined, all the flow channels have just been spliced into a complete and coherent structure. Inverted U-shaped runner 9.

There is a cooling liquid circulating pump 10 snap-connected in the left connecting piece 2, and the specific position of the cooling liquid circulating pump 10 is: when the left connecting piece 2 and the right connecting piece 3 are connected to each other and when the surgical saw blade is connected and fixed on the left connecting piece 2. When the right connecting piece 3 is inside, the outlet 11 and the inlet 12 of the coolant circulation pump 10 form a seamless connection with the two openings at the bottom of the inverted U-shaped flow channel 9 respectively.

In the present invention, the ceramic saw head 1 and the cemented carbide connecting piece composed of the left half piece 5 and the right half piece 6 are connected by bonding. If the ceramic saw head 1 is damaged, only a new ceramic saw head 1 needs to be replaced. It can be reasonably bonded with the cemented carbide connecting piece.

In the present invention, after the connection between the connecting lug 8 and the connecting groove 7 is formed, it can be ensured that the saw blade will not loosen left and right when rotating at high speed.

During use, the coolant circulation pump 10 in the circular connection tool seat 13 will inject the coolant into the inverted U-shaped flow channel 9 to form a coolant circulation, which fully ensures the cooling of the saw blade during work, thereby prolonging the The life of the saw blade; if the ceramic saw head 1 and the hard alloy connecting piece are broken or one of them is broken, just disassemble the circular connecting knife seat 13 composed of the left connecting piece 2 and the right connecting piece 3 to replace one The new saw blades go up, which greatly saves the cost.

Simultaneously, in the present invention, the cemented carbide connecting piece that is made up of left half-piece 5 and right half-piece 6 considers the processing convenience of runner firstly, and the second also considers from the angle of saving cost, because once left half-piece 5 or right half-piece The half sheet 6 is damaged, and only one of them needs to be replaced.

Claims (1)

1. an orthopedic surgical saw blade, it is characterized in that, several bonding saw blades of sheet are connected and for connecting the circle connection tool rest of this saw blades including by a pottery saw head and a hard alloy, described circle connects left connection sheet and the right connection sheet that tool rest includes being threaded connection, and the described circular tool rest that connects has when left and right connects the groove that can hold saw blades when sheet is fully connected and make ceramic saw head expose；Described hard alloy connects left half and the right half that sheet includes mutually splicing, it is provided with connecting groove outside described left half and right half, is provided with when left and right connects the connection lug that can be completely embedded into described connecting groove when sheet is fully connected inside described left and right connection sheet；It is equipped with runner in described pottery saw head, left half, right half, and when described pottery saw head, left half, right half altogether time all runners be just spliced into complete, a mutually coherent inverted U runner, described left connection sheet inner blocking type is connected to a coolant recirculation pump, the particular location of this coolant recirculation pump is: when left and right connect sheet be connected with each other and when saw blades be connected and fixed on left and right connect in sheet time, the export and import of described coolant recirculation pump respectively with inverted U runner bottom two opennings form seamless links.