CN109730742B - Special orthopedics saw of orthopedics operation - Google Patents
Special orthopedics saw of orthopedics operation Download PDFInfo
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- CN109730742B CN109730742B CN201910171934.4A CN201910171934A CN109730742B CN 109730742 B CN109730742 B CN 109730742B CN 201910171934 A CN201910171934 A CN 201910171934A CN 109730742 B CN109730742 B CN 109730742B
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- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 28
- 238000001356 surgical procedure Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000000110 cooling liquid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 16
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 210000001519 tissue Anatomy 0.000 description 16
- 210000000988 bone and bone Anatomy 0.000 description 9
- 238000001816 cooling Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000474 nursing effect Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Abstract
The invention discloses a special orthopedic saw for orthopedic surgery, which belongs to the field of medical equipment and comprises a rotary ring seat and a saw blade attached on one plane of the rotary ring seat, wherein one end of the saw blade is hinged with the rotary ring seat, the other end of the saw blade is in sliding connection with the rotary ring seat, one end of the saw blade in sliding connection is penetrated with a sliding rod, the sliding rod is connected with a spring extending along the rotating track of the sliding end of the saw blade, the other end of the spring is fixedly connected with the rotary ring seat, the saw blade can rotate around the hinged position, and meanwhile, the saw blade can rotate along with the rotary ring seat in a vertical plane; the bottom of the saw blade is provided with a straight blade, one side of the straight blade is uniformly fixed with left-direction teeth and right-direction teeth which are alternately distributed at intervals, and the tips of the left-direction teeth and the right-direction teeth are positioned at one side back to the fixing surface of the saw blade and extend to the outer side of the corresponding side surface of the saw blade. The saw blade has the advantages of good sawing stability, high flatness of the section and good effect of relieving the heating condition of the saw blade.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a special orthopedic saw for orthopedic surgery.
Background
Surgery is the primary treatment in orthopaedics, and bone saws are the medical devices commonly used in orthopaedics. The existing bone saw is divided into a manual saw and an electric swing saw, wherein the manual saw mainly adopts a saw blade with saw teeth at one side, a doctor needs to pull the saw blade back and forth to saw bones by hands during operation, the time and the labor are wasted, the labor intensity is high, the bone sawing time is long, the use is inconvenient, and the pain of a patient can be increased; the electric swing saw mainly generates a cutting effect by controlling the high-speed transverse swing of the saw blade, a doctor needs to hold the electric swing saw main body by hand during operation, and the shaking force of the electric swing saw is large, so that the cutting stability is poor.
In any bone saw, when the bone saw is applied, the saw blade or the saw blade moves to the opposite side from one side of a part to be sawed of a human body, and the sawing acting force frequently moves left and right, so that the cutting stability is poor, and rough and uneven section of limb tissues at a cut-off part can be caused; in the sawing process, two side surfaces of the saw blade are respectively contacted with cut-off surfaces of the two sections and generate friction, so that the saw blade is easy to heat to influence the service life of the saw blade, and the heat of the saw blade is transferred to a section of body tissue to damage the tissue of the section, so that the flatness of the cut-off surface can be influenced, and the cooling of the saw blade is realized in a cooling liquid or ventilation mode in the prior art, so that the effect of relieving the heating condition of the saw blade is poor.
Disclosure of Invention
1. Technical problem to be solved
The technical problem to be solved by the invention is to provide the special orthopedic saw for the orthopedic surgery, which has the advantages of good sawing stability, high flatness of the section and good effect of relieving the heating condition of the saw blade.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme:
the special orthopedic saw for the orthopedic operation comprises a rotary circular ring seat and a saw blade attached to the rotary circular ring seat, wherein the saw blade is square, the length of the saw blade is larger than the inner diameter of the rotary circular ring seat, one end of the saw blade is hinged to the rotary circular ring seat through a shaft rod vertically fixed on the rotary circular ring seat, a bar-shaped hole with the length parallel to the length of the saw blade is formed in the side of the other end of the saw blade, an arc-shaped inner cavity extending along the radian direction of the rotary circular ring seat is formed in the side of the rotary circular ring seat corresponding to the free end of the saw blade, an arc-shaped chute extending along the arc-shaped inner cavity and communicated with the arc-shaped inner cavity is formed in the plane of the rotary circular ring seat corresponding to the side of the saw blade, a sliding rod sliding along the arc-shaped chute is arranged in the arc-shaped chute, a part of the sliding rod outside the arc-shaped chute penetrates through the bar-shaped hole and extends outwards, a limit block used for limiting the length of the saw blade is arranged on the part of the side of the rotary circular ring seat, a spring extending along the arc-shaped inner cavity is arranged in the arc-shaped inner cavity, one end of the spring is fixed on the side of the sliding rod opposite to the rotary circular ring seat, and the other end of the spring is fixed on the side of the sliding rod and is positioned on the right opposite to the center of the circular ring seat, and is positioned on the plane of the circular ring seat and at right opposite to the center of the rotation position of the arc-shaped inner cavity;
the bottom of the saw blade is provided with a straight blade, one side of the lower part of the saw blade is uniformly fixed with a cutter tooth group in the length direction of the straight blade, the cutter tooth group comprises left-direction teeth and right-direction teeth which are alternately arranged at intervals, the tips of the left-direction teeth and the right-direction teeth are positioned at one side opposite to the fixing surface of the cutter tooth group and extend to the outer side of the corresponding side surface of the saw blade, and the deflection directions of the left-direction teeth and the right-direction teeth relative to the planes perpendicular to the saw blade, where the fixing sides are positioned, are opposite; the inside of the saw blade is provided with a liquid storage cavity for containing cooling liquid, the upper part of the saw blade on the side where the cutter tooth group is positioned is provided with a liquid injection port communicated with the liquid storage cavity, the liquid injection port is provided with a sealing plug, and the horizontal distance between the tip of the sealing plug, which is opposite to the saw blade, and the straight blade is smaller than the horizontal distance between the tips of the left-hand teeth and the right-hand teeth and the straight blade;
the utility model discloses a motor-driven rotary ring seat, including fixed ring seat, motor-driven drive gear, fixed ring seat is equipped with on the plane of fixed ring seat towards rotating ring seat just supplies the inserted rotation annular of ring body on the plane of fixed ring seat towards rotating ring seat, fixed ring seat is connected with the supporting plate of supporting in the motor bottom, be equipped with on the supporting plate of fixed ring seat with the fixed ring seat of specification and rotating ring seat unanimous on the annular curved surface of rotating ring seat, be equipped with on the annular curved surface of rotating ring seat with drive gear meshing.
Further, threads are distributed on the parts of the shaft rod and the sliding rod, which are positioned on one side of the saw blade, which is opposite to the rotating ring seat, and the limiting block is a nut which is matched with the threads. The nut and the threaded cooperation make stopper easy dismounting, and then the dismouting saw bit of being convenient for is favorable to nursing and changing the saw bit.
Further, gaskets respectively positioned at two sides of the saw blade are respectively sleeved on the shaft rod and the sliding rod. The gasket is located the saw bit both sides and can reduce the area of contact of saw bit both sides and relevant part when guaranteeing that the saw bit both sides receive sufficient spacing effect to be favorable to reducing friction, and be favorable to the saw bit to rotate for rotating the ring seat.
As the optimization to above-mentioned scheme, the slide bar both sides are fixed with two identical springs of specification respectively, the arc inner chamber is symmetrical about the central line that rotates the epaxial axostylus axostyle of ring seat place. Because under the condition that the spring is connected to one side of the slide bar, when in use, the spring can vibrate when the saw blade is contacted with limbs, and the springs are connected to the two opposite sides of the slide bar, the vibration can be eliminated, and the working stability of the saw blade can be further guaranteed. In addition, when the saw blade is tangential to the inner side of the limb surface, the spring on one side of the slide bar can generate pushing force to the slide bar, and the spring on the other side can generate pulling force to the slide bar, so that the pressure of the saw blade to limb tissues can be increased, and the saw cutting speed is increased.
Specifically, the support structure comprises a base arranged on the ground and a support column fixed in the middle of the upper surface of the base, the bottom of the fixed circular ring base is fixed at the top of the support column, and the support plate is fixed with a support rod connected to the support column.
Further, one side of rotating the ring seat and facing away from fixed ring seat is equipped with the brace table, the brace table bottom is connected with the lifter, the lifter bottom is connected to the pillar through the connecting rod, in the regulation process of lifter, the minimum position of brace table top surface and the interior round bottom parallel and level of rotating the ring seat, the highest position of brace table top surface is not higher than the centre of a circle position of rotating the ring seat. Because the limb to be sawn passes through the rotary ring seat from one side of the rotary ring seat along the circle center, the limb segment to be abandoned is positioned at the outer side of the rotary ring seat, and the support table can be used for supporting the limb segment to be abandoned, so that the stability of the limb in the sawing process is improved; and the height of the supporting table can be adjusted by adjusting the lifting rod so as to adapt to different height requirements of different individuals.
3. Advantageous effects
(1) The invention comprises a rotary ring seat rotating in a vertical plane, wherein a saw blade is arranged on one side plane of the rotary ring seat, one end of the saw blade is hinged with the rotary ring seat, the other end of the saw blade is in sliding connection with the rotary ring seat, one end of the saw blade in sliding connection is penetrated with a sliding rod, the sliding rod is connected with a spring extending along the rotating track of the sliding end of the saw blade, the other end of the spring is fixedly connected with the rotary ring seat, the saw blade can rotate around a hinged position, and meanwhile, the saw blade can rotate along with the rotary ring seat in the vertical plane. When the device is applied, the spring can enable the saw blade to be always pressed on the limb, the saw blade can rotate around the limb, the effect of cutting the saw blade in the rotating direction of the saw blade is generated on the tissue of the limb, the effect of cutting the limb by the saw blade from outside to inside can be realized by combining the effect of cutting the limb by the reset elastic force of the spring, the direction of the acting force applied by the limb is changed around the limb rapidly and periodically, and the cutting stability can be greatly improved; when the spring is restored to a natural state, the saw blade is positioned at the center line of the rotary ring seat, and the cutting surface can cover the whole area of the through hole at the inner side of the rotary ring seat after rotating for one circle, so that the complete sawing of limbs can be realized.
(2) The bottom of the saw blade is provided with the straight blade, and the section of the healthy limb on the side where the straight blade is positioned is better than the flatness of a general bone saw in the sawing process, so that subsequent grinding is not needed.
(3) According to the invention, the left-hand teeth and the right-hand teeth which are alternately arranged at intervals are uniformly fixed on one side of the straight blade, the tips of the left-hand teeth and the right-hand teeth saw the section of the waste limb section, the bottom edges of the left-hand teeth and the right-hand teeth grind limb tissues on the side where the left-hand teeth and the right-hand teeth are positioned, so that limb tissues at sawing positions corresponding to the widths of the left-hand teeth and the right-hand teeth are separated from the limb to form sawing marks with the width larger than the thickness of the saw blade, the surfaces of the saw blade on the sides where the left-hand teeth and the right-hand teeth are positioned are not contacted with the section of the limb tissues, and only the plane on the side where the straight blade is positioned is contacted with the section of the limb tissues, thereby being beneficial to reducing the heating value of the saw blade; the liquid storage cavity for filling the cooling liquid is arranged in the saw blade, so that heat produced by the saw blade can be absorbed, and the purpose of cooling is achieved. The two synergistic effects have better relieving effect on the heating condition of the saw blade, and the damage caused by heating of the section of the limb tissue can be avoided, so that the flatness of the section can be maintained, and the service life of the saw blade can be maintained.
In conclusion, the saw cutting device has the advantages of good saw cutting stability, high flatness of the cut surface and good effect of relieving the heating condition of the saw blade.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic side view of the structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure of the area A in FIG. 2;
fig. 4 is a front view of the rotary ring seat 10 and the saw blade 20 of embodiment 1 in an initial state;
fig. 5 is a front view of the rotary ring mount 10 and the saw blade 20 in the working state in embodiment 1;
FIG. 6 is a side schematic view of saw blade 20;
fig. 7 is a bottom view of the saw blade 20;
fig. 8 is a longitudinal sectional view of a connection structure of the rotary ring seat 10 and the fixed ring seat 30;
fig. 9 is a front view of embodiment 2 with the rotary ring mount 10 and the saw blade 20 in an initial state;
fig. 10 is a front view of the rotary ring mount 10 and the saw blade 20 in the working state in embodiment 2;
reference numerals: the device comprises a 1-shaft rod, a 2-sliding rod, a 3-limiting block, a 4-sealing plug, a 5-motor, a 6-driving gear, an 8-gasket, a 10-rotating ring seat, an 11-arc inner cavity, a 12-arc sliding groove, a 13-spring, 14-gear teeth, a 15-connecting ring body, a 20-saw blade, a 21-bar-shaped hole, a 22-flat blade, a 23-cutter tooth group, a 24-liquid storage cavity, a 25-liquid injection port, a 30-fixed ring seat, a 31-rotating ring groove, a 40-bracket structure, a 41-supporting plate, a 42-base, a 43-supporting column, a 44-supporting column, a 45-connecting rod, a 50-supporting table and a 51-lifting rod.
Detailed Description
The invention will now be described in further detail with reference to the drawings and examples.
Example 1
The special orthopedic saw for the orthopedic surgery comprises a rotary circular ring seat 10 and a saw blade 20 attached on one plane of the rotary circular ring seat 10, wherein the saw blade 20 is square, the length of the saw blade 20 is larger than the inner diameter of the rotary circular ring seat 10, and one end of the saw blade 20 is hinged on the rotary circular ring seat 10 through a shaft rod 1 vertically fixed on the rotary circular ring seat 10, so that the saw blade 20 can rotate around the shaft rod 1; the side of the other end of the saw blade 20 is provided with a strip-shaped hole 21 with the length parallel to the length of the saw blade 20, the side of the rotating ring seat 10 corresponding to the free end of the saw blade 20 is internally provided with an arc-shaped inner cavity 11 extending along the radian direction of the rotating ring seat 10, the plane of the rotating ring seat 10 corresponding to the side of the saw blade 20 is provided with an arc-shaped chute 12 extending along the arc-shaped inner cavity 11 and communicated with the arc-shaped inner cavity 11, the width of the arc-shaped chute 12 is smaller than that of the arc-shaped inner cavity 11, the arc-shaped chute 12 is internally provided with a sliding rod 2 sliding along the arc-shaped chute 12, as shown in fig. 8, the part of the sliding rod 2 outside the arc-shaped chute 12 penetrates through the strip-shaped hole 21 and extends outwards, so as to facilitate holding to push the sliding rod 2 to slide along the arc-shaped chute 12, and the saw blade 20 can be driven to rotate around the shaft lever 1, so that limbs penetrate from the circle center of the rotating ring seat 10; as shown in fig. 1, 3 and 8, the portions of the shaft rod 1 and the sliding rod 2, which are located at the side of the saw blade 20 opposite to the rotating circular seat 10, are provided with limiting blocks 3 for limiting the saw blade 20, so as to prevent the saw blade 20 from deviating from the rotating circular seat 10; a spring 13 extending along the arc-shaped inner cavity 11 is arranged in the arc-shaped inner cavity 11, one end of the spring 13 is fixed on the sliding rod 2, the other end of the spring 13 is fixed at one end of the arc-shaped inner cavity 11, and the reset elastic force of the spring 13 is one of main acting forces for enabling the saw blade 20 to cut into limbs; as shown in fig. 4, when the spring 13 is in a natural state, the sliding rod 2 is located at a position symmetrical to the shaft rod 1 about the center of the circle of the rotary ring seat 10, and the saw blade 20 is just located on the center line of the plane of the rotary ring seat 10, so that the complete cutting of the limb to be cut can be ensured;
as shown in fig. 6 and 7, a flat blade 22 is formed at the bottom of the saw blade 20, a cutter tooth set 23 is uniformly fixed on one side of the lower portion of the saw blade 20 along the length direction of the flat blade 22, the cutter tooth set 23 includes left-hand teeth and right-hand teeth alternately arranged at intervals, tips of the left-hand teeth and the right-hand teeth are located on one side opposite to the fixing surface and extend to the outer side of the corresponding side of the saw blade 20, and deflection directions of the left-hand teeth and the right-hand teeth relative to a plane perpendicular to the saw blade 20 where the respective fixing sides are located are opposite; as shown in fig. 6, the saw blade 20 is provided with a liquid storage cavity 24 for containing cooling liquid therein, so as to perform a cooling function on the saw blade 20; the upper part of the saw blade 20 at the side of the cutter tooth group 23 is provided with a liquid injection port 25 communicated with a liquid storage cavity 24, so that the filling and the replacement of cooling liquid are facilitated; the liquid injection port 25 is provided with a sealing plug 4, and the horizontal distance between one side surface of the sealing plug 4 facing away from the saw blade 20 and the flat blade 22 is smaller than the horizontal distance between the tips of the left-hand teeth and the right-hand teeth and the flat blade 22;
as shown in fig. 1, 2, 4 and 5, a driving gear 6 driven by a motor 5 is arranged on one side of the annular curved surface of the rotary ring seat 10, and gear teeth 14 meshed with the driving gear 6 are arranged on the annular curved surface of the rotary ring seat 10; as shown in fig. 1 and 8, a fixed ring seat 30 with a specification consistent with that of the rotary ring seat 10 is provided on the rotary ring seat 10 opposite to the side corresponding to the saw blade 20, a connection ring body 15 concentric with the rotary ring seat 10 is fixed on the plane of the rotary ring seat 10 facing the fixed ring seat 30, and a rotary ring groove 31 for inserting the connection ring body 15 is provided on the plane of the fixed ring seat 30 facing the rotary ring seat 10; as shown in fig. 1 and 2, the fixed ring seat 30 is connected with a bracket structure 40, so that the support and installation of the rotary ring seat 10 are realized; the bracket structure 40 is provided with a supporting plate 41 supported at the bottom of the motor 5.
In this embodiment, as shown in fig. 3, the portion of the shaft rod 1 and the sliding rod 2 located at the side of the saw blade 20 opposite to the rotating ring seat 10 is provided with threads, and the limiting block 3 is a nut adapted to the threads. The nut and the screw thread cooperate to facilitate the disassembly and assembly of the limiting block 3, thereby facilitating the disassembly and assembly of the saw blade 20 and facilitating the nursing and replacement of the saw blade 20.
In this embodiment, as shown in fig. 3, the shaft rod 1 and the sliding rod 2 are respectively sleeved with a gasket 8 respectively positioned at two sides of the saw blade 20. The positioning of the shims 8 on both sides of the saw blade 20 reduces the contact area between the two sides of the saw blade 20 and the associated components while ensuring that the two sides of the saw blade 20 are sufficiently limited, thereby facilitating a reduction in friction and a rotation of the saw blade 20 relative to the rotatable ring seat 10.
In this embodiment, as shown in fig. 1 and 2, the support structure 40 includes a base 42 disposed on the ground and a support 43 fixed to the middle of the upper surface of the base 42, the bottom of the fixed circular seat 30 is fixed to the top of the support 43, and the supporting plate 42 is fixed with a supporting rod 44 connected to the support 43.
In this embodiment, as shown in fig. 1 and 2, a supporting table 50 is disposed on a side of the rotary ring seat 10 facing away from the fixed ring seat 30, a lifting rod 51 is connected to the bottom of the supporting table 50, the bottom of the lifting rod 51 is connected to the supporting column 43 through a connecting rod 45, and during the adjustment of the lifting rod 51, the lowest position of the top surface of the supporting table 50 is flush with the bottom of the inner circle of the rotary ring seat 10, and the highest position of the top surface of the supporting table 50 is not higher than the center position of the rotary ring seat 10. Because the limb to be sawn passes through the rotary ring seat 10 along the circle center thereof when the bone saw is applied, the limb segment to be abandoned is positioned at the outer side of the rotary ring seat 10, and the support table 50 can be used for supporting the limb segment to be abandoned, thereby being beneficial to improving the stability of the limb in the sawing process; and the height of the supporting table 50 can be adjusted by adjusting the lifting rod 51 so as to adapt to different height requirements of different individuals.
Example 2
This embodiment differs from embodiment 1 in that:
in this embodiment, as shown in fig. 9 and 10, two springs 13 with the same specification are fixed on two sides of the sliding rod 2, and the arc-shaped inner cavity 11 is symmetrical about the center line of the shaft lever 1 on the rotary ring seat 10. Because the spring 13 may vibrate when the saw blade 20 contacts the limb during application in the case of connecting the spring 13 to one side of the slide bar 2, and the springs 13 are connected to both opposite sides of the slide bar 2, the vibration can be eliminated, and thus the working stability of the saw blade 20 can be further ensured. In addition, when the saw blade 20 is tangential to the inner side of the limb surface, the spring 13 on one side of the slide bar 2 can generate pushing force to the slide bar 2, and the spring 13 on the other side can generate pulling force to the slide bar 2, so that the pressure of the saw blade 20 to the limb tissue can be increased, and the sawing speed can be increased.
Otherwise, the same as in example 1 was conducted.
The special orthopedic saw for the orthopedic operation has the following specific action processes:
before the operation, filling the cooling liquid in the liquid storage cavity 24 in advance, and tightly covering the sealing plug 4; then the doctor holds the slide bar 2 to move towards the back side of the saw blade 20 along the arc-shaped chute 12, the spring 13 at the side is compressed, the saw blade 20 rotates around the shaft rod 1, as shown in fig. 5 and 10, the limb to be sawn of the patient can pass through the circle centers of the fixed circular ring seat 30 and the rotating circular ring seat 10, the section to be scheduled is basically positioned below the saw blade 20, the healthy limb is positioned at the side of the straight blade 22, then the slide bar 2 is moved towards the reset direction until the straight blade 22 of the saw blade 20 contacts the limb to be sawn, at the moment, the spring 13 is in a compressed state, and thrust towards the original position of the slide bar 2 is generated, so that the saw blade 20 can be pressed on the limb;
then the motor 5 can be started, the motor 5 drives the driving gear 6 to rotate, because the annular curved surface of the rotary ring seat 10 is provided with the gear teeth 14 meshed with the driving gear 6, the rotary ring seat 10 starts to rotate, the direction of the rotary ring seat is opposite to that of the driving gear 6, the saw blade 20 rotates along with the rotation of the rotary ring seat 10, the saw blade 20 rotates around the limb, the effect of cutting the limb in the rotating direction of the saw blade 20 is generated on the limb tissue, meanwhile, the effect of cutting the saw blade 20 into the limb body is combined with the reset elastic force of the spring 13, the effect of sawing the limb from outside to inside can be realized, the direction of the force applied by the limb is changed periodically and rapidly around the limb, and the cutting stability can be greatly improved; until the spring 13 is restored to a natural state, at this time, the saw blade 20 is located at the center line of the rotary ring seat 10, and after one rotation, the cutting surface can cover the whole area of the through hole at the inner side of the rotary ring seat 10, so that the complete sawing of the limb can be realized.
In the sawing process, because the flat blades 22 are formed at the bottom of the saw blade 20, the left-direction teeth and the right-direction teeth which are alternately distributed at intervals are uniformly fixed on one side of the flat blades 22, in the sawing process, the section of a healthy limb on the side where the flat blades 22 are positioned is better than the section of a general bone saw, subsequent grinding is not needed, the tips of the left-direction teeth and the right-direction teeth saw the section of the waste limb, the bottom edges of the left-direction teeth and the right-direction teeth grind limb tissues on the side where the left-direction teeth and the right-direction teeth are positioned, limb tissues at sawing positions corresponding to the widths of the left-direction teeth and the right-direction teeth are separated from the limbs, sawing marks with the width larger than the thickness of the saw blade 20 are formed, the surface of the saw blade 20 on the side where the left-direction teeth and the right-direction teeth are positioned is not contacted with the section of the limb tissues, only the plane on the side where the flat blades 22 are positioned of the saw blade 20 is contacted with the section of the limb tissues, the heating value of the saw blade 20 is reduced, the cooling liquid in the liquid cavity 24 of the saw blade 20 can absorb the heat produced by the saw blade 20, and the purpose of reducing the heating value is achieved, and the synergistic effect of the two effects is better.
From the above, the saw cutting device has the advantages of good saw cutting stability, high flatness of the cut surface and good effect of relieving the heating condition of the saw blade.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments will fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
Claims (6)
1. The utility model provides a special orthopedics saw of orthopedics operation, its characterized in that includes rotation ring seat (10) and attaches saw bit (20) that are located on the plane of rotation ring seat (10), saw bit (20) are square strip shape, the length of saw bit (20) is greater than the internal diameter of rotation ring seat (10), saw bit (20) one end articulates on rotation ring seat (10) through axostylus axostyle (1) the vertical fixation on rotation ring seat (10), and saw bit (20) other end place side is equipped with bar hole (21) that length is on a parallel with saw bit (20) length, be equipped with arc inner chamber (11) that extend along rotation ring seat (10) radian direction in rotation ring seat (10) side that correspond saw bit (20) place side on rotation ring seat (10) have seted up arc spout (12) that extend and communicate arc inner chamber (11) on the plane of rotation ring seat (10), the width of arc spout (12) is less than the width of arc inner chamber (11), arc spout (12) are equipped with bar chute (12) and extend outside slide bar (2) along arc spout (12), the saw blade device is characterized in that a limiting block (3) used for limiting the saw blade (20) is arranged on the part, located on one side, opposite to the rotary ring seat (10), of the saw blade (20), of each of the shaft lever (1) and the sliding rod (2), a spring (13) extending along the arc-shaped inner cavity (11) is arranged in each of the arc-shaped inner cavities (11), one end of each of the springs (13) is fixed on the sliding rod (2), the other end of each of the springs (13) is fixed at one end of each of the arc-shaped inner cavities (11), and when the springs (13) are in a natural state, the sliding rod (2) is located at a position symmetrical to the center of the shaft lever (1) with respect to the rotary ring seat (10), and the saw blade (20) is just located on the central line of the plane of the rotary ring seat (10).
The bottom of the saw blade (20) is provided with a flat blade (22), one side of the lower part of the saw blade (20) is uniformly fixed with a cutter tooth group (23) in the length direction of the flat blade (22), the cutter tooth group (23) comprises left-direction teeth and right-direction teeth which are alternately arranged at intervals, the tips of the left-direction teeth and the right-direction teeth are positioned at one side opposite to the fixing surface and extend to the outer side of the corresponding side surface of the saw blade (20), and the deflection directions of the left-direction teeth and the right-direction teeth relative to the plane perpendicular to the saw blade (20) where the respective fixing sides are positioned are opposite; the inside of the saw blade (20) is provided with a liquid storage cavity (24) for containing cooling liquid, the upper part of the saw blade (20) at the side where the cutter tooth group (23) is arranged is provided with a liquid injection port (25) communicated with the liquid storage cavity (24), the liquid injection port (25) is provided with a sealing plug (4), and the horizontal distance between the side surface of the sealing plug (4) facing away from the saw blade (20) and the flat blade (22) is smaller than the horizontal distance between the tips of the left-hand teeth and the right-hand teeth and the flat blade (22);
the utility model discloses a motor, including fixed ring seat (10), fixed ring seat (30), fixed ring seat (10), fixed ring seat (30) are equipped with on the plane of fixed ring seat (10) and rotate ring seat (10) concentric setting's coupling ring body (15), fixed ring seat (30) are equipped with on the plane of rotating ring seat (10) just supply coupling ring body (15) male rotation annular groove (31) on the plane of rotating ring seat (10), fixed ring seat (30) are connected with supporting structure (40), be equipped with on supporting structure (40) support in layer board (41) of motor (5) bottom.
2. The special orthopedic saw for orthopedic surgery according to claim 1, characterized in that threads are distributed on the part of the shaft lever (1) and the sliding rod (2) which is positioned on one side of the saw blade (20) back to the rotary ring seat (10), and the limiting block (3) is a nut matched with the threads.
3. The special orthopedic saw for orthopedic surgery according to claim 2, characterized in that gaskets (8) respectively positioned at two sides of the saw blade (20) are respectively sleeved on the shaft lever (1) and the sliding rod (2).
4. The special orthopedic saw for orthopedic surgery according to claim 1, characterized in that two springs (13) with the same specification are respectively fixed on two sides of the sliding rod (2), and the arc-shaped inner cavity (11) is symmetrical with respect to a diameter line passing through the shaft lever (1) on the rotary ring seat (10).
5. The orthopedic saw special for orthopedic surgery according to any one of claims 1-4, characterized in that the bracket structure (40) comprises a base (42) placed on the ground and a support post (43) fixed in the middle of the upper surface of the base (42), the bottom of the fixed circular ring seat (30) is fixed on the top of the support post (43), and the support plate (41) is fixed with a support post (44) connected to the support post (43).
6. The orthopedic saw special for orthopedic surgery according to claim 5, characterized in that a supporting table (50) is arranged on one side of the rotary ring seat (10) back to the fixed ring seat (30), a lifting rod (51) is connected to the bottom of the supporting table (50), the bottom of the lifting rod (51) is connected to the supporting column (43) through a connecting rod (45), in the adjusting process of the lifting rod (51), the lowest position of the top surface of the supporting table (50) is flush with the bottom of the inner circle of the rotary ring seat (10), and the highest position of the top surface of the supporting table (50) is not higher than the circle center position of the rotary ring seat (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910171934.4A CN109730742B (en) | 2019-03-07 | 2019-03-07 | Special orthopedics saw of orthopedics operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910171934.4A CN109730742B (en) | 2019-03-07 | 2019-03-07 | Special orthopedics saw of orthopedics operation |
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| Publication Number | Publication Date |
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| CN109730742A CN109730742A (en) | 2019-05-10 |
| CN109730742B true CN109730742B (en) | 2023-11-14 |
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Citations (6)
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| US5160340A (en) * | 1988-06-16 | 1992-11-03 | Gary James A | Autopsy apparatus |
| CN2369637Y (en) * | 1999-01-28 | 2000-03-22 | 王德禄 | Multifunction electric surgical device for orthopedic department |
| KR200262941Y1 (en) * | 2001-10-31 | 2002-03-18 | 전건영 | a |
| CN204471453U (en) * | 2015-03-13 | 2015-07-15 | 天津旭迪聚氨酯保温防腐设备有限公司 | A kind of planetary cutting saw and a kind of tubing diced system |
| CN105232111A (en) * | 2015-10-30 | 2016-01-13 | 重庆医科大学附属永川医院 | Medical electric saw |
| CN206424115U (en) * | 2016-10-21 | 2017-08-22 | 张健 | A kind of bone saw of Orthopeadic Surgery |
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2019
- 2019-03-07 CN CN201910171934.4A patent/CN109730742B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5160340A (en) * | 1988-06-16 | 1992-11-03 | Gary James A | Autopsy apparatus |
| CN2369637Y (en) * | 1999-01-28 | 2000-03-22 | 王德禄 | Multifunction electric surgical device for orthopedic department |
| KR200262941Y1 (en) * | 2001-10-31 | 2002-03-18 | 전건영 | a |
| CN204471453U (en) * | 2015-03-13 | 2015-07-15 | 天津旭迪聚氨酯保温防腐设备有限公司 | A kind of planetary cutting saw and a kind of tubing diced system |
| CN105232111A (en) * | 2015-10-30 | 2016-01-13 | 重庆医科大学附属永川医院 | Medical electric saw |
| CN206424115U (en) * | 2016-10-21 | 2017-08-22 | 张健 | A kind of bone saw of Orthopeadic Surgery |
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|---|---|
| CN109730742A (en) | 2019-05-10 |
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