KR20160021544A - Oscillating saw device - Google Patents
Oscillating saw device Download PDFInfo
- Publication number
- KR20160021544A KR20160021544A KR1020140106923A KR20140106923A KR20160021544A KR 20160021544 A KR20160021544 A KR 20160021544A KR 1020140106923 A KR1020140106923 A KR 1020140106923A KR 20140106923 A KR20140106923 A KR 20140106923A KR 20160021544 A KR20160021544 A KR 20160021544A
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- South Korea
- Prior art keywords
- saw
- power transmission
- cam
- rotating body
- operation member
- Prior art date
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- 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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
- A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00477—Coupling
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (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)
- Oral & Maxillofacial Surgery (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
An oscillating saw apparatus is disclosed. The disclosed oscillating saw apparatus comprises: i) a main body of a gun shape; ii) a driving motor installed in the main body; iii) a rotating body connected to the driving motor and having three cam protrusions; and iv) And v) a power transmission path for transmitting the rotational power of the driving motor to the operating member via a rotating body, the operating member being disposed on a straight line, As shown in FIG.
Description
An embodiment of the present invention relates to an oscillating saw apparatus, and more particularly to a surgical oscillating saw apparatus used for cutting or cutting a bone in an orthopedic surgery.
In general, a surgical medical instrument used in surgical operations is an oscillating saw apparatus and a drilling apparatus for cutting and cutting bones, drilling holes in bones, and inserting pins.
Among these, Oscillating Saw (Oscillating Saw) is a type of medical handpiece, which is widely used for orthopedic surgery and bone cutting through saw.
In particular, oscillating sawing devices are used for cutting bones in knee artificial joints and hip joint replacement (hip joint) replacement. Such an oscillating sowing apparatus for surgical operation is mainly composed of an automatic method for cutting bone by rotating the sow in a leftward and rightward direction by a driving means such as a motor.
For example, a surgical oscillating saw apparatus is constituted by a gun-shaped body having an operation button like an electric power tool, and the bone can be cut by repeatedly rotating the saw in the lateral direction through the driving means.
Such an oscillating saw apparatus is provided with driving means as a motor installed in the main body, power transmitting means for transmitting rotational power of the driving means, switching means for switching the rotational motion of the driving means to the right and left repeated rotational motion And a fastening means connected to the direction switching means and fastening the saw.
Therefore, the oscillating saw apparatus transmits the rotational power of the driving means to the direction switching means through the power transmitting means, and by switching the rotational motion of the driving means to the right and left repeated rotational motions through the direction switching means, Rotate and cut the bone.
Here, when the oscillating saw is based on the power transmission path for transmitting the rotational power of the drive means to the direction switching means through the power transmission means, the saw is not located on the straight line of the power transmission path.
That is, the saw is connected to the direction switching means through the fastening means at a certain distance from the power transmission path in the direction perpendicular to the power transmission direction (horizontal direction), is spaced apart from the direction switching means by a certain distance, have.
Thus, in the conventional oscillating saw apparatus, the saw is not located on the straight line of the power transmission path but fixed at a certain distance in the vertical direction with respect to the direction switching means. Therefore, when cutting the bone from the bottom to the top, It may cause discomfort such as turning over.
Further, in the related art, as described above, since the saw is connected to the direction switching means through the fastening means at a certain distance from the power transmission path in the direction perpendicular to the power transmission direction, noise and vibration may occur during repeated left and right rotation of the saw Which is disadvantageous to power transmission efficiency, and the overall structure and assembling work is complicated, and the manufacturing cost may increase due to an increase in the number of parts.
(Patent Document 1) Korean Published Patent Application No. 2014-0004883 (published on April 14, 2014)
The matters described in the background section are intended to enhance the understanding of the background of the invention and may include matters not previously known to those skilled in the art.
Embodiments of the present invention are to provide an oscillating saw apparatus capable of implementing power transmission of a saw in a serial system by providing a saw to a path for transmitting power and a straight line.
An oscillating saw according to an embodiment of the present invention comprises: i) a main body of a gun shape; ii) a driving motor installed in the main body; iii) a plurality of cam protrusions connected to the driving motor, And iv) an operating member rotatably installed in the main body in the left and right direction and selectively in cam contact with the cam protrusions; and v) an electric motor for transmitting rotational power of the driving motor to the operating member And a saw which is disposed on a straight line with the power transmission path and fixed to the operation member.
In addition, the oscillating saw according to an embodiment of the present invention may further include a fixing unit installed on the operation member and fixing the saw to the operation member.
Further, in the oscillating saw apparatus according to the embodiment of the present invention, the operating member and the fixing unit may be positioned on a straight line.
Also, in the oscillating saw according to the embodiment of the present invention, the driving motor, the rotating body, the operating member, and the fixing unit may form a series power transmission system along the longitudinal direction of the main body.
Further, in the oscillating saw apparatus according to the embodiment of the present invention, the rotating body may be connected to the driving shaft of the driving motor through gears.
In addition, in the oscillating saw according to the embodiment of the present invention, the cam protrusions may have a rounded cam protruding surface and may be disposed so as not to cross each other with respect to the center of the circle of the rotating body.
Further, in the oscillating saw according to the embodiment of the present invention, the cam protrusions may protrude from the rotating body in three directions along the rotating direction, and may be cam-contacted alternately on the right and left sides of the operating member .
In addition, in the oscillating saw according to the embodiment of the present invention, the saw may be slidably installed on the operating member along the power transmission path by the fixing portion.
In addition, in the oscillating saw according to the embodiment of the present invention, the actuating member may include a chucking groove for supporting an engagement end of the saw, It can be installed as much as possible.
Further, in the oscillating saw according to an embodiment of the present invention, a detachment groove may be formed along the power transmission path at an engagement end of the saw.
Further, in the oscillating saw according to the embodiment of the present invention, the fixing portion includes a support plate for supporting an engagement end portion of the saw, which is fitted in a chucking groove of the operation member, A fastening bolt which is inserted through the member and a butterfly nut which is fastened to the fastening end of the fastening bolt.
Further, in the oscillating saw according to the embodiment of the present invention, the saw is slid along the power transmission path between the support plate and the operating member, and is detached from the fastening bolt through the fastening bolt, Can be mounted.
Further, in the oscillating saw according to the embodiment of the present invention, the fixing portion may further include a spring washer interposed between the head of the fastening bolt and the support plate, and between the operating member and the butterfly nut have.
In addition, the oscillating saw according to the embodiment of the present invention may further include a pair of return springs connected to the operating member and the main body, respectively, and exerting an elastic force in a direction opposite to the left-right rotation of the operating member .
The embodiments of the present invention can implement the power transmission of the saw in a serial system by locating the fixed portion on a straight line with the power transmission path for transmitting the rotational power of the drive motor to the operation member through the rotating body.
Therefore, in the embodiment of the present invention, since the power transmission path and the saw tooth are located on one straight line, it is possible to solve the inconvenience of turning the body upside down when cutting the bone from the bottom up as in the prior art, Bones can be easily cut.
In addition, in the embodiment of the present invention, since the power transmission of the saw is performed in a serial system, the power transmission efficiency can be improved, the noise and vibration can be minimized, the number of parts can be reduced, .
Furthermore, in the embodiment of the present invention, since the saw can be detached from the operation member in a sliding manner without disassembling the fixing portion for fixing the saw, the operation of separating and replacing the saw can be simplified and simplified.
These drawings are for the purpose of describing an exemplary embodiment of the present invention, and therefore the technical idea of the present invention should not be construed as being limited to the accompanying drawings.
1 is an exploded perspective view illustrating an oscillating saw according to an embodiment of the present invention.
2 is an exploded perspective view illustrating an oscillating saw according to an embodiment of the present invention.
3 is a front view showing an oscillating saw according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a saw-toothed structure of an oscillating saw according to an embodiment of the present invention.
5 and 6 are views for explaining the operation of the oscillating saw according to the embodiment of the present invention.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.
It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
In the following detailed description, the names of components are categorized into the first, second, and so on in order to distinguish them from each other in the same relationship, and are not necessarily limited to the order in the following description.
Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.
It should be noted that terms such as " ... unit ", "unit of means "," part of item ", "absence of member ", and the like denote a unit of a comprehensive constitution having at least one function or operation it means.
FIG. 1 is an exploded perspective view illustrating an oscillating saw according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 is a frontal view of FIG.
1 to 3, an
For example, the oscillating
It should be understood, however, that the scope of protection of the present invention is not necessarily limited thereto, and any kind of cutting apparatus for cutting a predetermined object by the sawing method as described above can be applied to the technical idea of the present invention have.
The oscillating
That is, according to the embodiment of the present invention, the bone can be easily cut at any position, noise and vibration can be minimized, power transmission efficiency can be improved, the number of parts can be reduced, and the overall structure and assembly can be simplified (100). ≪ / RTI >
To this end, the oscillating
In the embodiment of the present invention, the
However, since the above-described accessory elements are provided for installing various components according to the embodiment of the present invention, the above-mentioned accessory elements are collectively referred to as the
Here, the
The
In the embodiment of the present invention, the
In the embodiment of the present invention, the
The rotating
The
The rotating
The cam protrusions 37 are formed on a surface of the
For example, the
The reason why three
In the embodiment of the present invention, the
The actuating
The operating
That is, as the rotating
The
A chucking
In an embodiment of the present invention, the
One end of the
Here, a
The
To this end, in the embodiment of the present invention, the fixing
Here, the actuating
4 is a cross-sectional view illustrating a saw-toothed structure of an oscillating saw according to an embodiment of the present invention.
1 to 4, the fixing
The
The
In this case, in the state where the engaging end of the
The
The
Therefore, in the embodiment of the present invention, the engaging end of the
When the tightening of the
The
The
The
In the embodiment of the present invention, as the rotating
That is, the
When the
One end portion of the
That is, the
Hereinafter, the operation of the oscillating saw 100 according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings and the accompanying drawings.
5 and 6 are views for explaining the operation of the oscillating saw according to the embodiment of the present invention.
5 and 6, in the embodiment of the present invention, the engaging end of the
The first through
In this state, in the embodiment of the present invention, the
In this case, a
The one end portion (engagement end portion) of the
Since the
In this state, in the embodiment of the present invention, an electric signal is applied to the driving
The driving
As the
That is, in the embodiment of the present invention, as shown in FIG. 5, when the
6, the rotating
Therefore, in the embodiment of the present invention, as the rotating
Thus, in the embodiment of the present invention, since the
In the embodiment of the present invention, when the
Thus, in the embodiment of the present invention, the actuating
In the embodiment of the present invention, when the
On the other hand, when the operation is completed and the
The fixing force acting on the engagement end of the
That is, the
In the case where another saw 60 is to be attached to the actuating
Thereafter, when the
According to the oscillating saw
Therefore, in the embodiment of the present invention, since the power transmission path and the
In addition, in the embodiment of the present invention, since power transmission of the
Furthermore, in the embodiment of the present invention, since the
While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Other embodiments may easily be proposed by adding, changing, deleting, adding, etc., but this is also within the scope of the present invention.
10 ...
13 ...
21 ... drive
31 ...
35 ... driven
39 ...
51 ...
55 ... chucking
60 ... saw 61 ... saw blade
63 ...
71 ...
75 ...
79 ... first through
Claims (13)
A drive motor installed in the main body;
A rotating body connected to the driving motor and having three cam protrusions;
An operation member rotatably installed in the body in the left and right direction and selectively in cam contact with the cam protrusions; And
A saw blade which is positioned on a straight line with a power transmission path for transmitting rotation power of the drive motor to the operation member through the rotation body and fixed to the operation member;
/ RTI >
Further comprising a fixing portion which is provided on the operation member and fixes the saw to the operation member,
Wherein the actuating member and the securing portion are positioned in a straight line.
Wherein the driving motor, the rotating body, the operating member, and the fixing portion form a series power transmission system along the longitudinal direction of the main body.
Wherein the rotating body is connected to the driving shaft of the driving motor through gears.
The cam protrusions,
Wherein the cam follower has a cam protruding surface in a round shape and is arranged so as not to cross each other with respect to the center of the circle of the rotating body.
The cam protrusions,
And three protrusions are formed on the rotating body along the rotating direction, and are alternately cam-contacted to left and right sides of the operating member.
The saw-
And the slider is slidably mounted on the operating member along the power transmission path by the fixing portion.
Wherein:
And a chucking groove for supporting a joint end of the saw, and is rotatably installed on the main body through a rotation center axis perpendicular to the power transmission path.
Wherein the attachment end of the saw is formed with a detachment groove along the power transmission path.
The fixing unit includes:
A support plate for supporting an engagement end of the saw fitted in the chucking groove of the actuating member,
A fastening bolt penetrating through the support plate and the operation member through a detachment groove of the saw,
And a fastening bolt
Wherein the oscillating saw apparatus comprises:
The saw-
Wherein the sliding member is slid along the power transmission path between the support plate and the operation member and is detached from the fastening bolt through the fastening groove or mounted on the fastening bolt.
The fixing unit includes:
Further comprising a spring washer interposed between the head of the fastening bolt and the support plate, and between the actuating member and the butterfly nut.
Further comprising a pair of return springs connected to the operating member and the main body, each of the return springs exerting an elastic force in a direction opposite to the left-right rotation of the operating member.
Priority Applications (1)
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KR1020140106923A KR20160021544A (en) | 2014-08-18 | 2014-08-18 | Oscillating saw device |
Applications Claiming Priority (1)
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KR1020140106923A KR20160021544A (en) | 2014-08-18 | 2014-08-18 | Oscillating saw device |
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KR1020140106923A KR20160021544A (en) | 2014-08-18 | 2014-08-18 | Oscillating saw device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110090057A (en) * | 2019-05-17 | 2019-08-06 | 郑传渭 | A kind of swing saw |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140004883A (en) | 2012-07-03 | 2014-01-14 | 주식회사 무한기업 | Oscillating saw for surgery |
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2014
- 2014-08-18 KR KR1020140106923A patent/KR20160021544A/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20140004883A (en) | 2012-07-03 | 2014-01-14 | 주식회사 무한기업 | Oscillating saw for surgery |
Non-Patent Citations (1)
Title |
---|
이 배경기술 부분에 기재된 사항은 발명의 배경에 대한 이해를 증진하기 위하여 작성된 것으로서, 이 기술이 속하는 분야에서 통상의 지식을 가진 자에게 이미 알려진 종래 기술이 아닌 사항을 포함할 수 있다. |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110090057A (en) * | 2019-05-17 | 2019-08-06 | 郑传渭 | A kind of swing saw |
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