CN103800132A - Plaster saw - Google Patents
Plaster saw Download PDFInfo
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- CN103800132A CN103800132A CN201410072417.9A CN201410072417A CN103800132A CN 103800132 A CN103800132 A CN 103800132A CN 201410072417 A CN201410072417 A CN 201410072417A CN 103800132 A CN103800132 A CN 103800132A
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- saw blade
- switch
- spring
- saw
- plaster
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Abstract
The invention discloses a plaster saw. The plaster saw comprises a handle, a driving device, a saw blade, a spring and a gasket, wherein the saw blade is connected with the driving device, the spring is arranged in a containing cavity, the gasket is connected with the spring, the saw blade is arranged outside the handle, the gasket is arranged corresponding to the saw blade, and the maximum amount of compression of the compressed spring after the saw blade makes contact with plaster ranges from 1.5 cm to 3 cm. The plaster saw has the advantages of being convenient to operate and high in use safety performance.
Description
Technical field
The invention belongs to a kind of medical apparatus and instruments, especially relate to a kind of plaster saw.
Background technology
At present, the equipment that in Orthopedic Clinical, the normal orthopaedics using is torn Gypsum Fibrosum open is mainly manual gypsum cutter and electric plaster saw.Manually gypsum cutter is generally to use in the hospital that scale is less, and its operation principle is: one end of manual gypsum cutter is stretched between Gypsum Fibrosum and patient skin, and its other end is placed in gypsum surface, shears thus Gypsum Fibrosum; The advantage of this method is in the time of operation, not cut patient's skin, the relatively effort but manual gypsum cutter operates, and the speed of shearing Gypsum Fibrosum is too slow, and in operating process, the skin that can oppress patient, makes patient produce pain, even may make skin abrasion.Electric plaster saw uses commonplace in larger hospital, cut Gypsum Fibrosum by the high-speed rotation of circular saw blade; Its advantage is that speed is fast; save manpower; but safety is poor; because saw blade is protected the patient skin below Gypsum Fibrosum without any protective measure in cutting Gypsum Fibrosum; and the depth of cut of saw blade is also wayward; so just be easy to be damaged to patient skin, increased patient's fear, also increased doctor's work difficulty.
Summary of the invention
The object of the present invention is to provide one easy to operate, the plaster saw that usage safety performance is high.
According to an aspect of the present invention, provide a kind of plaster saw, comprised handle, driving device, saw blade, spring and pad, saw blade is connected with driving device, and pad is connected with spring, and saw blade is positioned at handle outer, pad setting corresponding to saw blade.
Plaster saw beneficial effect of the present invention is: due to pad setting corresponding to saw blade, thereby saw blade is being sawed after Gypsum Fibrosum, saw blade active force acts on pad, has avoided the damage of saw blade to patient skin, improves the safety while use; Be provided with spring simultaneously, in the time that spring reaches maximum compressibility, prevent that handle from continuing to press down, thereby effectively control the volume under pressure of the saw blade of being located at handle outer, effectively controlled the volume under pressure of saw blade in the time of saw Gypsum Fibrosum, avoided the excessive damage that causes patient skin of volume under pressure of saw blade, handled easily, improves safety in utilization.
In some embodiments, plaster saw can also comprise connecting rod, and handle is provided with containing cavity, and spring is located in containing cavity, and connecting rod one end is connected with spring, and the other end is connected with pad, and the external diameter of connecting rod is consistent with the axial width of saw blade.Be provided with connecting rod, and the external diameter of connecting rod make saw blade consistent with the axial width of saw blade cut Gypsum Fibrosum in the process of saw, in the gap that connecting rod can be cut at saw blade, move along with the movement of saw blade, facilitate the use of plaster saw of the present invention, make easy to operate.
In some embodiments, spring and connecting rod junction can be provided with baffle plate, and connecting rod is connected with spring by baffle plate, and baffle plate is positioned at containing cavity.Be provided with baffle plate, while making to use, the active force of connecting rod is better passed to spring, facilitates the control of handle volume under pressure.
In some embodiments, driving device can comprise on and off switch, major loop and control loop, and major loop is connected by and off switch with control loop, and major loop comprises motor, and motor is connected with saw blade, and control loop is for controlling the rotation of motor.Thus, the rotation by control loop control motor and stopping, facilitating the control of control loop to motor, and then the rotation of the saw blade that is connected with motor of control or stop operating.
In some embodiments, major loop can also comprise the normal open switch being connected with motor, between motor and normal open switch, is connected with normally closed switch.Thus, the control of the closure or openness state by normal open switch or normally closed switch, controls the working condition of motor.
In some embodiments, control loop can comprise microprocessor, operating switch and approach switch, and operating switch is all connected with microprocessor with approach switch, and approach switch is positioned at a side of pad, and approach switch is used for responding to saw blade.Be provided with microprocessor, the convenient disconnection of each several part or the control of closure state being connected with microprocessor, facilitates control and the operation of plaster saw of the present invention; Be provided with the situation that contacts that approach switch can react saw blade and pad in time, microprocessor is according to the working condition of the disconnection of approach switch and closed situation control motor, the convenient control to motor.
In some embodiments, normal open switch is all connected with microprocessor with normally closed switch.Thus, control loop, by the control to normal open switch or normally closed switch, is controlled the working condition of motor.
In some embodiments, the compressed amount of maximum of saw blade contact Gypsum Fibrosum rear spring is 1.5～3 centimetres.Due to, in actual mechanical process, the thickness of Gypsum Fibrosum is mostly between 1.5～3 centimetres, thus the compressed amount of maximum that saw blade is contacted to Gypsum Fibrosum rear spring is corresponding with the thickness of cut Gypsum Fibrosum, has effectively controlled the volume under pressure of saw blade.
In some embodiments, pad is positioned at saw blade below.Thus, effectively avoided the damage of saw blade to patient skin.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment 1 of plaster saw of the present invention;
Structural representation when Fig. 2 is plaster saw amount of spring compression maximum of the present invention;
Fig. 3 is the circuit control schematic diagram of driving device of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Embodiment 1
See figures.1.and.2.Plaster saw of the present invention, comprise handle 1, driving device 2, saw blade 3, spring 4 and pad 5, handle 1 offers containing cavity 11, and driving device 2 is located in containing cavity 11, and saw blade 3 is connected with driving device 2, spring 4 is located in containing cavity 11, one end of spring 4 is fixed on the inwall of handle 1, and pad 5 is connected with spring 4, and saw blade 3 is positioned at handle 1 outside, pad 5 setting corresponding to saw blade 3, pad 5 be positioned at saw blade 3 belows and saw blade 3 perpendicular.Driving device 2 and spring 4 are arranged in containing cavity 11, have reduced the overall volume of plaster saw of the present invention; Saw blade 3 is connected with driving device 2, has improved the operating rate of saw blade 3.
Plaster saw of the present invention also comprises connecting rod 6, and connecting rod 6 one end are connected with spring 4 other ends, and the other end and pad 5 are fixedly connected by welding, and the external diameter of connecting rod 6 is consistent with the axial width of saw blade 3.
Spring 4 is provided with baffle plate 7 with connecting rod 6 junctions, connecting rod 6 is connected with spring 4 other ends by baffle plate 7, baffle plate 7 is between spring 4 and connecting rod 6, the upper surface of baffle plate 7 is fixedly connected with the other end of spring 4, the lower surface of baffle plate 7 is fixedly connected with connecting rod 6, baffle plate 7 is positioned at containing cavity 11, and connecting rod 6 runs through handle 1 and is connected with pad 5.Saw blade 3 contacts the compressed amount of maximum of Gypsum Fibrosum rear spring 4 and the consistency of thickness of Gypsum Fibrosum.
As shown in Figure 3, driving device 2 comprises on and off switch 23, major loop 21 and control loop 22, major loop 21 is connected by and off switch 23 with control loop 22, major loop 21 comprises motor 211, motor 211 is connected with saw blade 3, and control loop 22 is for controlling the rotation of motor 211, and motor 211 is provided with output shaft, saw blade 3 is connected with motor 211 by output shaft, and motor 211 drives saw blade 3 to rotate while rotation.Plaster saw of the present invention in use, on and off switch 23 is connected with external power supply, the running voltage of control loop 22 is 5V DC voltage, the running voltage of major loop 21 is 12V DC voltage, in order to guarantee the running voltage of driving device 2, between external power supply and on and off switch 23, transformator can be connected with, while making external power supply be civil power, required voltage can be converted to.
Normal open switch KM1 is all connected with microprocessor 221 with normally closed switch KM2.
The direction of motion of saw blade 3 is consistent with the axial direction of handle 1, meets the operating habit of user, convenient operation.
Plaster saw of the present invention in use, switch 23, Operating In Persistent Current Mode K switch 1 switch on power, normal open switch KM1 is under normal conditions in off-state, normally closed switch KM2 is under normal conditions in closure state, under approach switch K2 normality in off-state, the closed after current signal flow of operating switch K1 is to microprocessor 221, microprocessor 221 detects after current signal, send a signal to again normal open switch KM1, make normal open switch KM1 closure, motor 211 is switched on, and starts working, thereby drives saw blade 3 to rotate by output shaft.Saw blade 3 starts Gypsum Fibrosum to cut saw, operator presses handle 1 downwards, in actual use, the thickness of Gypsum Fibrosum is generally 2 centimetres, and therefore, in the time that saw blade 3 starts to cut saw to Gypsum Fibrosum, spring 4 can compressed maximum be 2 centimetres, thereby when saw blade 3 is along with handle 1 presses down after 2 centimetres, because spring 4 can not be continued compression, make handle 1 can not continue to press down, be convenient to the control of handle 1 volume under pressure.Due to the compressed amount of spring 4 and the consistency of thickness of Gypsum Fibrosum, thereby in the time that saw blade 3 presses to maximum, saw blade 3 is just worn plaster saw, and now, saw blade 3 contacts with pad 5.After saw blade 3 contacts with pad 5, the approach switch K2 closure being connected with pad 5 with saw blade 3, microprocessor 221 senses after the signal of approach switch K2, microprocessor 221 sends a signal to normally closed switch KM2, normally closed switch KM2 disconnects, motor 211 and power supply are disconnected, stop operating, and then saw blade 3 stops operating.
The structure of the plaster saw of the present embodiment is substantially the same manner as Example 1, and its difference is: in the time that saw blade 3 starts to cut saw to Gypsum Fibrosum, spring 4 can compressed maximum be 1.5 centimetres, and the thickness of saw blade 3 Gypsum Fibrosum of sawing is 1.5 centimetres.
The structure of the plaster saw of the present embodiment is substantially the same manner as Example 1, and its difference is: in the time that saw blade 3 starts to cut saw to Gypsum Fibrosum, spring 4 can compressed maximum be 3 centimetres, and the thickness of saw blade 3 Gypsum Fibrosum of sawing is 3 centimetres.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (9)
1. plaster saw, wherein, comprise handle (1), driving device (2), saw blade (3), spring (4) and pad (5), described saw blade (3) is connected with driving device (2), described pad (5) is connected with spring (4), described saw blade (3) is positioned at handle (1) outside, described pad (5) setting corresponding to saw blade (3).
2. plaster saw according to claim 1, wherein, also comprise connecting rod (6), described handle (1) is provided with containing cavity (11), described spring (4) is located in containing cavity (11), described connecting rod (6) one end is connected with spring (4), and the other end is connected with pad (5), and the external diameter of described connecting rod (6) is consistent with the axial width of saw blade (3).
3. plaster saw according to claim 2, wherein, described spring (4) is provided with baffle plate (7) with connecting rod (6) junction, and described connecting rod (6) is connected with spring (4) by baffle plate (7), and described baffle plate (7) is positioned at containing cavity (11).
4. plaster saw according to claim 1, wherein, described driving device (2) comprises on and off switch (23), major loop (21) and control loop (22), described major loop (21) is connected by and off switch (23) with control loop (22), described major loop (21) comprises motor (211), described motor (211) is connected with saw blade (3), and described control loop (22) is for controlling the rotation of motor (211).
5. plaster saw according to claim 4, wherein, described major loop (21) also comprises the normal open switch (KM1) being connected with motor (211), between described motor (211) and normal open switch (KM1), is connected with normally closed switch (KM2).
6. plaster saw according to claim 5, wherein, described control loop (22) comprises microprocessor (221), operating switch (K1) and approach switch (K2), described operating switch (K1) is all connected with microprocessor (221) with approach switch (K2), described approach switch (K2) is positioned at a side of pad (5), and described approach switch (K2) is for responding to saw blade (3).
7. plaster saw according to claim 6, wherein, described normal open switch (KM1) is all connected with microprocessor (221) with normally closed switch (KM2).
8. plaster saw according to claim 1, wherein, after described saw blade (3) contact Gypsum Fibrosum, the compressed amount of maximum of described spring (4) is 1.5～3 centimetres.
9. plaster saw according to claim 1, wherein, described pad (5) is positioned at saw blade (3) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072417.9A CN103800132A (en) | 2014-02-28 | 2014-02-28 | Plaster saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410072417.9A CN103800132A (en) | 2014-02-28 | 2014-02-28 | Plaster saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103800132A true CN103800132A (en) | 2014-05-21 |
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ID=50697848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410072417.9A Pending CN103800132A (en) | 2014-02-28 | 2014-02-28 | Plaster saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103800132A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973324A (en) * | 1973-12-04 | 1976-08-10 | Curt Persson | Sawing apparatus |
| CN1072082A (en) * | 1991-11-09 | 1993-05-19 | 杨章民 | The control device of electric plaster bandage saw |
| CN201073383Y (en) * | 2007-09-20 | 2008-06-18 | 夏胜利 | Safe type medical gypsum saw |
| CN203107449U (en) * | 2013-02-20 | 2013-08-07 | 苏展 | Novel medical manual type gypsum saw |
-
2014
- 2014-02-28 CN CN201410072417.9A patent/CN103800132A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973324A (en) * | 1973-12-04 | 1976-08-10 | Curt Persson | Sawing apparatus |
| CN1072082A (en) * | 1991-11-09 | 1993-05-19 | 杨章民 | The control device of electric plaster bandage saw |
| CN201073383Y (en) * | 2007-09-20 | 2008-06-18 | 夏胜利 | Safe type medical gypsum saw |
| CN203107449U (en) * | 2013-02-20 | 2013-08-07 | 苏展 | Novel medical manual type gypsum saw |
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Application publication date: 20140521 |