CN108309391B - Medical pendulum saw - Google Patents
Medical pendulum saw Download PDFInfo
- Publication number
- CN108309391B CN108309391B CN201810148023.5A CN201810148023A CN108309391B CN 108309391 B CN108309391 B CN 108309391B CN 201810148023 A CN201810148023 A CN 201810148023A CN 108309391 B CN108309391 B CN 108309391B
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- China
- Prior art keywords
- shell
- indexing ring
- swing
- sleeve
- saw
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- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/142—Surgical saws ; Accessories therefor with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Dentistry (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a medical swing saw, which comprises a shell (30), a swing saw head (36) and an angle adjusting assembly (37) connected between the shell (30) and the swing saw head (36), wherein the swing saw head (36) comprises a swing shell (29), the angle adjusting assembly (37) comprises a locking sleeve (8), a centering spring (9), an indexing ring (10) and an indexing ring meshing sleeve (35), wherein the indexing ring (10) and the indexing ring meshing sleeve are meshed with each other, one end of the locking sleeve (8) is connected with the shell (30), the other end of the locking sleeve is sleeved on the swing shell (29), the indexing ring (10) is connected with the swing shell (29), the indexing ring meshing sleeve (35) is installed in the shell (30), and the centering spring (9) is installed between the indexing ring (10) and the locking sleeve (8). According to the medical swing saw, the angle adjusting assembly is arranged, so that the angle of the cutting plane of the medical swing saw can be adjusted.
Description
Technical Field
The invention relates to a medical swing saw.
Background
As a medical instrument for the surgical operation in the hospital, the medical swing saw has the advantages of attractive appearance, small volume, light weight, convenient carrying, safe operation, shortened operation time and the like. The oscillating saw generally comprises an eccentric shaft connected with a motor, and the eccentric shaft drives an oscillating shaft to oscillate back and forth through a shifting fork, so that the oscillating saw can oscillate and cut at a high speed within a small formation range. The saw blade on the existing swing saw head can swing in a fixed plane, and a doctor needs to adjust the posture of an arm to change the cutting plane, so that the operation precision is reduced, the operation is inconvenient, and the doctor is influenced to perform the operation.
Disclosure of Invention
The object of the present invention is to address the above-mentioned drawbacks of the prior art by providing a medical pendulum saw, the pendulum saw having a saw blade with an adjustable pendulum plane.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: the utility model provides a medical pendulum saw, includes shell, pendulum saw head and connection be in the shell with angle adjusting component between the pendulum saw head, pendulum saw head includes pendulum shell, angle adjusting component includes lock sleeve, centering spring and intermeshing's graduation ring and graduation ring meshing cover, lock sleeve one end with the shell links to each other, and the other end cover is located on the pendulum shell, the graduation ring with the pendulum shell links to each other, the graduation ring meshing cover install in the shell, centering spring install in between the graduation ring with the lock sleeve.
One end of the indexing ring is provided with a plurality of first tooth parts and first groove parts which are arranged at intervals along the circumference.
One end of the indexing ring meshing sleeve is provided with a plurality of second tooth parts and second groove parts which are arranged at intervals along the circumference, the second tooth parts are matched with the first tooth parts, and the second groove parts are matched with the second tooth parts.
The number of the first teeth and the second teeth is 8.
The medical pendulum saw further comprises a motor arranged in the shell, and the indexing ring meshing sleeve is connected to the motor.
The locking sleeve is provided with a convex part matched with the periphery of the swing shell, one end of the opposite-pushing spring is propped against the convex part, and the other end of the opposite-pushing spring is propped against the indexing ring.
The swing shell comprises a second shell part which is coaxially arranged with the indexing ring, and the indexing ring is sleeved on the second shell part and is connected with the second shell part through a set screw.
The locking sleeve is sleeved on the second shell part, and the convex part is matched with the periphery of the second shell part.
The second shell part is provided with a step part, and the locking sleeve is provided with a cover part sleeved on the step part.
Compared with the prior art, the invention has the advantages that: according to the medical swing saw, the angle adjusting assembly is arranged, so that the angle of the cutting plane of the medical swing saw can be adjusted, a doctor can conveniently perform an operation, and the operation precision is improved; and has simple structure, small volume and convenient use.
Drawings
Fig. 1 is an exploded view of the structure of the medical pendulum saw of the present invention.
Fig. 2 is a cross-sectional view of the medical pendulum saw of the present invention.
Fig. 3 is a schematic structural view of the medical pendulum saw of the present invention.
Fig. 4 is a cross-sectional view of the swing saw head of the medical swing saw of the present invention.
Fig. 5 is a cross-sectional view of the portion a in fig. 4.
Fig. 6 is a schematic view of the structure of the indexing ring and the indexing ring engaging sleeve of the medical pendulum saw of the present invention.
Detailed Description
The technical scheme of the present invention is further described in non-limiting detail below with reference to the preferred embodiments and the accompanying drawings.
As shown in fig. 1 and 4, a medical pendulum saw according to a preferred embodiment of the present invention includes a housing 30, a pendulum saw head 36, and an angle adjustment assembly 37 connected between the housing 30 and the pendulum saw head 36.
As shown in fig. 2, a motor mounting chamber 30a is provided in the housing 30, a motor 33 is provided in the motor mounting chamber 30a, and the motor 33 is screwed from the rear of the housing 30 using a hexagon socket head screw 32, thereby fixing the motor 33 to the housing 30.
As shown in fig. 4 and 5, the swing saw head 36 includes a swing case 29, a first bearing 6, a second bearing 16, a fork 7, and a blade pressing assembly 100, the swing case 29 includes a first case portion 29a and a second case portion 29b having axes perpendicular to each other, and a first mounting hole 29aa and a second mounting hole 29ba communicating with each other are respectively provided at the centers of the first case portion 29a and the second case portion 29 b.
The saw blade pressing assembly 100 comprises a pressing cutter plate 1, a cutter rest 3, a spring 4 and a sliding sleeve 14, wherein the pressing cutter plate 1 is provided with a pressing cutter part 1a and a shaft part 1b arranged on the pressing cutter part 1a, the sliding sleeve 14 is connected to the shaft part 1b, the cutter rest 3 comprises a cutter bearing part 3a and a sleeve part 3b arranged on the cutter bearing part 3a, the shaft part 1b penetrates through the cutter bearing part 3a and is arranged in the sleeve part 3b in a penetrating manner, the sliding sleeve 14 is in sliding fit with the inner surface of the sleeve part 3b, the spring 4 is sleeved on the shaft part 1b, one end of the spring abuts against the cutter bearing part 3a, and the other end of the spring abuts against the sliding sleeve 14. A locking plate 15 is arranged at the lower end of the shaft part 1b, and the locking plate 15 blocks the sliding sleeve 14 to prevent the sliding sleeve 14 from falling off.
A saw blade (not shown) is installed between the cutter bearing part 3a and the cutter pressing part 1a, the elastic force of the spring 4 applies thrust to the sliding sleeve 14, the sliding sleeve 14 applies thrust to the locking plate 15, and the locking plate 15 transmits the thrust to the cutter pressing plate 1, so that the cutter pressing part 1a of the cutter pressing plate 1 is matched with the cutter bearing part 3a to clamp the saw blade.
The first bearing 6 and the second bearing 16 are both mounted in the first mounting hole 29aa, and the sleeve portion 3b of the blade pressing assembly 100 is inserted in the first mounting hole 29aa and is fitted with the inner rings of the first bearing 6 and the second bearing 16 so that the blade pressing assembly 100 can rotate about the axes of the first and second bearings 6, 16.
One end of the shifting fork 7 is sleeved on the sleeve part 3b, the other end of the shifting fork extends into the second mounting hole 29ba, and the end of the shifting fork 7 extending into the second mounting hole 29ba is provided with a U-shaped opening 7a. An eccentric shaft (not shown) is connected to the motor shaft end 33a, and extends into the U-shaped opening 7a. When the motor 33 drives the eccentric shaft to rotate, the eccentric shaft drives the shifting fork 7 to swing back and forth, thereby driving the saw blade pressing assembly 100 to swing, and finally, the saw blade reciprocates.
As shown in fig. 1, 2, 4 and 6, the angle adjustment assembly 37 includes a lock sleeve 8, a centering spring 9, an index ring 10, and an index ring engagement sleeve 35.
Referring to fig. 6, one end of the index ring 10 is provided with first tooth portions 10a and first groove portions 10b uniformly distributed in the circumferential direction, the first tooth portions 10a and first groove portions 10b being uniformly spaced apart; the first tooth portion 10a protrudes in the axial direction, and a first groove portion 10b is formed accordingly. A second tooth portion 35a and a second groove portion 35b which are respectively engaged with the first groove portion 10b and the first tooth portion 10a are provided at one end of the index ring engagement sleeve 35, that is, the first tooth portion 10a may be fitted into the second groove portion 35b, and the second tooth portion 35a may be fitted into the first groove portion 10b. In the present embodiment, the number of the first teeth 10a and the second teeth 35a is 8.
The other end of the indexing ring 10 is radially provided with a first connecting hole 10c, a first threaded hole 10bb matched with the first connecting hole 10c is formed near the end of the second shell part 29b, and a set screw 11 penetrates through the first connecting hole 10c to be connected with the first threaded hole 10bb, so that the indexing ring 10 is fixed on the second shell part 29 b.
The other end of the indexing ring engaging sleeve 35 is radially provided with a second connecting hole 35c, the motor 33 is provided with a second threaded hole 33b matched with the second connecting hole 35c, and the countersunk head screw 34 penetrates through the second connecting hole 35c to be connected with the second threaded hole 33b, so that the indexing ring engaging sleeve 35 is fixed on the motor 33.
One end of the locking sleeve 8 is in threaded connection with the shell 30, and the other end is sleeved on the second shell 29 b. The locking sleeve 8 is provided with a protrusion 8a fitted to an outer surface of the second housing part 29b, and the locking sleeve 8 is provided coaxially with the second housing part 29b and movable along an axis of the second housing part 29 b. The lock sleeve 8 is further provided with a cover portion 8b connected with the protruding portion 8a, the cover portion 8b is matched with a step portion 29bc which is arranged on the second shell portion 29b and is close to the first shell portion 29a, the cover portion 8b is sleeved outside the step portion 29bc, the lock sleeve is mainly used for enhancing tightness, dirt is prevented from entering the shell 30 and the swing shell 29, and the lock sleeve is attractive. The centering spring 9 is installed in a space between the second housing portion 29b and the lock sleeve 8, with one end thereof abutting against the boss portion 8a and the other end thereof abutting against the index ring 10. That is, the top spring 9 applies a force to the swing saw head 36 in the motor direction, so that the index ring 10 and the index ring engagement sleeve 35 can be firmly engaged.
To further enhance the tightness, a sealing ring 31 is also provided between the housing 30 and the indexing ring 10.
When it is desired to change the cutting plane of the saw blade, only the angle of the oscillating saw head 36 relative to the housing 30 is changed, and the following steps are performed: the pendulum saw head 36 is pulled away from the housing 30 forcing the counter spring 9 to compressively deform until the indexing ring 10 and the indexing ring engaging sleeve 35 are separated. Then rotating a certain angle, loosening the swing saw head 36, and enabling the indexing ring 10 to be meshed with the indexing ring meshing sleeve 35 again.
According to the medical swing saw, the angle adjusting assembly is arranged, so that the angle of the cutting plane of the medical swing saw can be adjusted, a doctor can conveniently perform an operation, and the operation precision is improved; and has simple structure, small volume and convenient use.
It should be noted that the foregoing description of the preferred embodiments is merely illustrative of the technical concept and features of the present invention, and is not intended to limit the scope of the invention, as long as the scope of the invention is defined by the claims and their equivalents. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (5)
1. A medical pendulum saw, characterized in that: the angle adjusting device comprises a shell (30), a swing saw head (36) and an angle adjusting assembly (37) connected between the shell (30) and the swing saw head (36), wherein the swing saw head (36) comprises a swing shell (29), the angle adjusting assembly (37) comprises a locking sleeve (8), a centering spring (9), an indexing ring (10) and an indexing ring meshing sleeve (35), wherein the indexing ring (10) and the indexing ring meshing sleeve are meshed with each other, one end of the locking sleeve (8) is connected with the shell (30), the other end of the locking sleeve is sleeved on the swing shell (29), the indexing ring (10) is connected with the swing shell (29), the indexing ring meshing sleeve (35) is installed in the shell (30), and the centering spring (9) is installed between the indexing ring (10) and the locking sleeve (8);
The locking sleeve (8) is provided with a convex part (8 a) matched with the periphery of the swing shell (29), one end of the opposite-pushing spring (9) is propped against the convex part (8 a), and the other end of the opposite-pushing spring is propped against the indexing ring (10);
The swing shell (29) comprises a second shell part (29 b) coaxially arranged with the indexing ring (10), and the indexing ring (10) is sleeved on the second shell part (29 b) and is connected with the second shell part (29 b) through a set screw (11);
The locking sleeve (8) is sleeved on the second shell part (29 b), and the convex part (8 a) is matched with the periphery of the second shell part (29 b);
The second shell part (29 b) is provided with a step part (29 bc), and the locking sleeve (8) is provided with a cover part (8 b) sleeved on the step part (29 bc);
one end of the locking sleeve (8) is in threaded connection with the shell (30), and the other end of the locking sleeve is sleeved on the second shell part (29 b);
when the cutting plane of the saw blade needs to be changed, the specific operation steps are as follows: pulling the swing saw head (36) in a direction away from the shell (30) to force the opposite spring (9) to be compressively deformed until the indexing ring (10) and the indexing ring meshing sleeve (35) are separated, then rotating a certain angle, and loosening the swing saw head (36) to enable the indexing ring (10) and the indexing ring meshing sleeve (35) to be meshed again.
2. The medical pendulum saw of claim 1, wherein: one end of the indexing ring (10) is provided with a plurality of first tooth parts (10 a) and first groove parts (10 b) which are arranged at intervals along the circumference.
3. A medical pendulum saw according to claim 2, wherein: one end of the indexing ring meshing sleeve (35) is provided with a plurality of second tooth parts (35 a) and second groove parts (35 b) which are arranged at intervals along the circumference, the second tooth parts (35 a) are matched with the first tooth parts (10 a), and the second groove parts (35 b) are matched with the second tooth parts (35 a).
4. A medical pendulum saw according to claim 2 or 3, wherein: the number of the first teeth (10 a) and the second teeth (35 a) is 8.
5. The medical pendulum saw of claim 1, wherein: the motor (33) is arranged in the shell (30), and the indexing ring meshing sleeve (35) is connected to the motor (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148023.5A CN108309391B (en) | 2018-02-12 | 2018-02-12 | Medical pendulum saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148023.5A CN108309391B (en) | 2018-02-12 | 2018-02-12 | Medical pendulum saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108309391A CN108309391A (en) | 2018-07-24 |
| CN108309391B true CN108309391B (en) | 2024-05-24 |
Family
ID=62903540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810148023.5A Active CN108309391B (en) | 2018-02-12 | 2018-02-12 | Medical pendulum saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108309391B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032416A (en) * | 2007-03-30 | 2007-09-12 | 苏州华晟手术医疗器械有限公司 | Medical swing saw |
| CN204092100U (en) * | 2014-09-19 | 2015-01-14 | 芜湖锐进医疗设备有限公司 | A kind of universal goose saw with rotary positioning mechanism |
| CN209074765U (en) * | 2018-02-12 | 2019-07-09 | 苏州益诺斯医疗科技有限公司 | A kind of medical swing saw |
-
2018
- 2018-02-12 CN CN201810148023.5A patent/CN108309391B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032416A (en) * | 2007-03-30 | 2007-09-12 | 苏州华晟手术医疗器械有限公司 | Medical swing saw |
| CN204092100U (en) * | 2014-09-19 | 2015-01-14 | 芜湖锐进医疗设备有限公司 | A kind of universal goose saw with rotary positioning mechanism |
| CN209074765U (en) * | 2018-02-12 | 2019-07-09 | 苏州益诺斯医疗科技有限公司 | A kind of medical swing saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108309391A (en) | 2018-07-24 |
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