Orthopedic surgery saw

Abstract

The utility model provides an orthopedic surgery saw, and relates to the technical field of medical instruments. The orthopedic surgery saw comprises a barrel, a power device, a switch device, a saw blade and a power source. The power device comprises a motor, an eccentric wheel, a transmission wheel and a transmission part; the motor is installed on the barrel, the eccentric wheel is fixedly connected with the output end of the motor and arranged in the barrel, the transmission wheel is fixedly connected with the eccentric wheel, and the transmission part is in transmission connection with the transmission wheel and hinged to the barrel. The saw blade is detachably mounted on the transmission part; the switch device comprises a pressing piece, a spring and a pressing switch; the pressing piece is inserted into the barrel, one end of the spring is fixedly connected with the inner wall of the barrel, the other end of the spring is fixedly connected with the pressing piece, the pressing switch is arranged in the barrel, and one end of the pressing switch is electrically connected with the motor. According to the orthopedic operation saw, the technical problems that when an existing orthopedic operation saw is used by medical staff, the cutting angle is inconvenient to adjust, and the flexibility of using the orthopedic operation saw is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an orthopedic surgical saw. Background Art

[0002] The main function of an orthopedic surgical saw is to precisely cut and process bones to meet surgical needs. It can be used in a variety of orthopedic surgeries, such as spinal surgery, joint replacement surgery, osteotomy, fracture treatment, etc.

[0003] Existing orthopedic surgical saws consist of a handle, motor, battery, battery cover, and oscillating saw. The motor is located inside the handle. To use, the oscillating saw is attached to the handle, the battery is installed inside the handle, the battery cover is closed, and a button on the handle is pressed to start the oscillating saw from the handle, thereby cutting bone. When using this type of orthopedic surgical saw, medical personnel need to hold the handle with one hand and support it with the other, making it difficult to adjust the cutting angle and limiting the flexibility of the orthopedic surgical saw.

[0004] The inventors discovered at least the following problems during the implementation of this embodiment:

[0005] When medical staff use existing orthopedic surgical saws, it is inconvenient to adjust the cutting angle and the flexibility of using the orthopedic surgical saws is poor. Utility Model Content

[0006] The purpose of the utility model is to provide an orthopedic surgical saw, which solves the technical problems that medical staff have difficulty in adjusting the cutting angle and have poor flexibility when using the existing orthopedic surgical saw.

[0007] Utility model solution:

[0008] The utility model provides an orthopedic surgical saw, comprising a cylinder, a power device, a switch device, a saw blade and a power supply; the power device comprises a motor, an eccentric wheel, a transmission wheel and a transmission member; the motor is mounted on the cylinder, the eccentric wheel is fixedly connected to the output end of the motor and is arranged inside the cylinder, the transmission wheel is fixedly connected to the eccentric wheel, the transmission member is transmission-connected to the transmission wheel and is hinged to the cylinder; the saw blade is detachably mounted on the transmission member; the switch device comprises a pressing member, a spring and a pressing switch; the pressing member is inserted into the cylinder, one end of the spring is fixedly connected to the inner wall of the cylinder, and the other end thereof is fixedly connected to the pressing member, the pressing switch is arranged inside the cylinder, and one end thereof is electrically connected to the motor, and the other end thereof is connected to the power supply.

[0009] Furthermore, the cylinder body is provided with a cylinder cover, the cylinder cover is provided with a first groove, and the first groove is sleeved on the transmission member.

[0010] Furthermore, the transmission member is provided with a first keyway, a mounting slot, a connecting key and a limit cover; the mounting slot is connected to the first keyway; the saw blade is provided with a second keyway; the saw blade is detachably plugged into the mounting slot, the connecting key is respectively plugged into the first keyway and the second keyway, and the limit cover is threadedly connected to the transmission member.

[0011] Furthermore, the saw blade is provided with a plurality of silencer lines.

[0012] Furthermore, the pressing piece is provided with anti-slip grooves.

[0013] Beneficial effects:

[0014] The utility model provides an orthopedic surgical saw. During use, the saw blade is mounted on a transmission member. The medical staff grasps the pressing member. When the pressing member is firmly grasped, the pressing member contacts a push switch, connecting the power supply to the motor, which starts the motor, drives the eccentric wheel to rotate, which in turn drives the transmission wheel to move. The eccentric wheel drives the transmission member to swing, which in turn drives the saw blade to rotate, thereby cutting bone. This orthopedic surgical saw is easy for the medical staff to hold, and the angle of the orthopedic surgical saw is relatively easy to adjust. The orthopedic surgical saw is more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic structural diagram of an orthopedic surgical saw provided in this embodiment;

[0017] Figure 2 A schematic structural diagram of an orthopedic surgical saw provided in this embodiment;

[0018] Figure 3 A schematic structural diagram of an orthopedic surgical saw provided in this embodiment;

[0019] Figure 4 This is a schematic structural diagram of an orthopedic surgical saw provided in this embodiment.

[0020] icon:

[0021] 100-cylinder body; 110-cylinder cover; 111-first groove;

[0022] 200 - power unit; 210 - motor; 220 - eccentric wheel; 230 - transmission wheel; 240 - transmission member; 241 - first keyway; 242 - mounting slot; 243 - connecting key; 244 - limit cover;

[0023] 300- switch device; 310- pressing member; 311- anti-slip groove; 320- spring; 330- press switch;

[0024] 400-saw blade; 410-second keyway; 420-silencer line;

[0025] 500-Power supply. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In addition, the terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and it does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0032] This embodiment provides an orthopedic surgical saw, please refer to Figure 1-4 As shown, it includes a cylinder 100, a power device 200, a switch device 300, a saw blade 400 and a power supply 500; the power device 200 includes a motor 210, an eccentric wheel 220, a transmission wheel 230 and a transmission member 240; the motor 210 is installed on the cylinder 100, the eccentric wheel 220 is fixedly connected to the output end of the motor 210, and is arranged inside the cylinder 100, the transmission wheel 230 is fixedly connected to the eccentric wheel 220, and the transmission member 240 is transmission-connected to the transmission wheel 230. And it is hinged to the barrel 100; the saw blade 400 is detachably mounted on the transmission member 240; the switch device 300 includes a pressing member 310, a spring 320 and a pressing switch 330; the pressing member 310 is inserted into the barrel 100, one end of the spring 320 is fixedly connected to the inner wall of the barrel 100, and the other end is fixedly connected to the pressing member 310, the pressing switch 330 is arranged inside the barrel 100, and one end thereof is electrically connected to the motor 210, and the other end thereof is connected to the power supply 500.

[0033] Specifically, the cylinder 100 makes it convenient for medical staff to grasp and adjust the cutting angle of the orthopedic surgical saw; the power device 200 is used to drive the electric saw to swing, and the rotation of the motor 210 drives the eccentric wheel 220 to rotate. The structure of the rotating member is the same as that of the bearing. The rotation of the eccentric wheel 220 drives one end of the transmission member 240 to swing. The transmission member 240 is hinged to the inner wall of the cylinder 100, and the saw blade 400 swings at one end of the transmission member 240; the switch device 300 is used to control the start of the motor 210. When the pressing member 310 touches the pressing switch 330 during the downward pressing process, the power supply 500 and the motor 210 are connected. When the medical staff relaxes their hands, the spring 320 drives the pressing member 310 to return to its original position. At this time, the power supply 500 and the motor 210 are disconnected, and the saw blade 400 is provided with a plurality of saw teeth for cutting bones. During use, the saw blade 400 is installed on the transmission member 240, and the medical staff holds the pressing member 310. After holding the pressing member 310 tightly, the pressing member 310 touches the pressing switch 330, and the power supply 500 is connected to the motor 210. The motor 210 starts, and the motor 210 drives the eccentric wheel 220 to rotate. The eccentric wheel 220 drives the transmission member 240 to swing, and the transmission member 240 drives the saw blade 400 to rotate, thereby cutting the bone.

[0034] In this embodiment, the cylinder body 100 is provided with a cylinder cover 110 . The cylinder cover 110 is provided with a first groove 111 . The first groove 111 is sleeved on the transmission member 240 .

[0035] Specifically, the provision of the cylinder cover 110 enhances the sealing performance of the cylinder body 100 , and the provision of the first groove 111 enables the transmission member 240 to swing in the first groove 111 .

[0036] In this embodiment, the transmission member 240 is provided with a first key slot 241, an installation slot 242, a connecting key 243 and a limit cover 244; the installation slot 242 is connected to the first key slot 241; the saw blade 400 is provided with a second key slot 410; the saw blade 400 is detachably inserted into the installation slot 242, the connecting key 243 is respectively inserted into the first key slot 241 and the second key slot 410, and the limit cover 244 is threadedly connected to the transmission member 240.

[0037] Specifically, when the saw blade 400 needs to be installed on the transmission member 240, the saw blade 400 is inserted into the installation slot 242, the connecting key 243 is placed into the first key slot 241 and the second key slot 410, and the limiting cover 244 is rotated to fix the connecting key 243 inside the transmission member 240.

[0038] In this embodiment, the saw blade 400 is provided with a plurality of muffler lines 420 .

[0039] Specifically, the muffler line 420 is used to reduce the generation of noise.

[0040] In this embodiment, the pressing member 310 is provided with anti-slip grooves 311 .

[0041] Specifically, the provision of the anti-slip groove 311 increases the friction between the medical staff and the pressing member 310 , thereby improving the medical staff's ability to control the orthopedic surgical saw.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An orthopedic surgical saw, characterized in that: It comprises a barrel (100), a power device (200), a switch device (300), a saw blade (400) and a power source (500); The power device (200) includes a motor (210), an eccentric wheel (220), a transmission wheel (230) and a transmission member (240); The motor (210) is mounted on the cylinder (100), the eccentric wheel (220) is fixedly connected to the output end of the motor (210) and is arranged inside the cylinder (100), the transmission wheel (230) is fixedly connected to the eccentric wheel (220), and the transmission member (240) is transmission-connected to the transmission wheel (230) and is hinged to the cylinder (100); The saw blade (400) is detachably mounted on the transmission member (240); The switch device (300) comprises a pressing member (310), a spring (320) and a pressing switch (330); The pressing member (310) is inserted into the cylinder (100), one end of the spring (320) is fixedly connected to the inner wall of the cylinder (100), and the other end thereof is fixedly connected to the pressing member (310), and the pressing switch (330) is arranged inside the cylinder (100), and one end thereof is electrically connected to the motor (210), and the other end thereof is connected to the power supply (500).

2. An orthopedic surgical saw according to claim 1, characterized in that: The cylinder body (100) is provided with a cylinder cover (110), and the cylinder cover (110) is provided with a first groove (111), and the first groove (111) is sleeved on the transmission member (240).

3. The orthopedic surgical saw according to claim 2, characterized in that: The transmission member (240) is provided with a first keyway (241), a mounting slot (242), a connecting key (243) and a limiting cover (244); The mounting groove (242) is in communication with the first key groove (241); The saw blade (400) is provided with a second keyway (410); The saw blade (400) is detachably plugged into the mounting slot 2 (42), the connecting key (243) is respectively plugged into the first key slot 2 (41) and the second key slot (410), and the limiting cover (244) is threadedly connected to the transmission member (240).

4. The orthopedic surgical saw according to claim 3, characterized in that: The saw blade (400) is provided with a plurality of muffler lines (420).

5. The orthopedic surgical saw according to claim 4, characterized in that: The pressing piece (310) is provided with anti-slip grooves (311).

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