Novel surgical bone saw

Abstract

The utility model relates to the technical field of medical instruments, and discloses a novel surgical bone saw which comprises a handle, a saw blade and a first fixing block, the saw blade is fixedly connected with the first fixing block through a bolt, and a fixed rotating mechanism is arranged between the first fixing block and the handle. The fixed rotating mechanism comprises a rotating column and a moving plate, the first fixed block is fixedly installed at one end of the rotating column, the other end of the rotating column is rotationally connected with one end of the handle through a first bearing, a moving groove is formed in the rotating column, a limiting shaft is fixedly installed on the inner wall of the moving groove, and the moving plate is slidably connected with the inner wall of the moving groove. By arranging the fixed rotating mechanism, a doctor can conveniently use sawteeth with different sizes at the upper end and the lower end of a saw blade, the saw blade does not need to be disassembled and assembled again, the doctor can conveniently operate and use the saw blade, the working efficiency of the doctor is improved, and the problem that the saw blade needs to be disassembled and assembled again when the sawteeth with different sizes are used in a bone saw in a comparison file is solved. And the use is inconvenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a novel bone saw for surgery. Background Art

[0002] Orthopedics is a medical specialty within a medical institution. It is a general term for trauma and spinal surgery. It specializes in the diagnosis and treatment of various types of finger and palm amputations, replantation of multiple finger amputations, various types of skin flap transplants, nerve repair, congenital malformations of the limbs, brachial plexus injuries, and nerve compression. Surgery is the primary treatment method in orthopedics, and bone saws are a commonly used medical device in orthopedic surgery. Existing bone saws have teeth on only one side. When surgery requires both a large-toothed and a small-toothed saw blade, two bone saws with different tooth sizes must be used, which is inconvenient to use. This is especially true when sawing delicate parts of a patient's bones, as it can easily injure the patient.

[0003] According to a Chinese patent, a new bone saw for orthopedic surgery, with the publication number CN203195738U, has been disclosed. The patent has a simple structure and is easy to use. One bone saw can replace three bone saws with different tooth sizes. Furthermore, the outer surface of the handle is elastic, making it more comfortable for the doctor to hold the saw when sawing bones.

[0004] However, when the bone saw in the patent needs to use saw teeth of different sizes, the saw blade needs to be disassembled and reassembled, which is inconvenient to use. Therefore, we propose a bone saw in the patent, which needs to be disassembled and reassembled when the saw teeth of different sizes need to be used, which is inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a novel bone saw for surgery, which solves the problems in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a novel surgical bone saw, comprising a handle, a saw blade, and a fixing block 1, wherein the saw blade and the fixing block 1 are fixedly connected by bolts, and a fixed rotation mechanism is provided between the fixing block 1 and the handle;

[0007] The cam is fixedly mounted on one end of the rotary column, and the other end of the rotary column is rotatably connected to one end of the handle through a bearing. The rotary column is provided with a movable groove, and a limiting shaft is fixedly installed on the inner wall of the movable groove. The movable plate is slidably connected to the inner wall of the movable groove. A limiting shaft hole is provided on the movable plate, and the limiting shaft movably passes through the movable plate through the limiting shaft hole. A spring is wound around the outer wall of the limiting shaft, and one end of the spring is fixedly mounted on the inner wall of the movable groove, and the other end of the spring is fixedly mounted on one side of the movable plate. A pin rod is fixedly mounted on the other side of the movable plate, and a pin groove is provided at one end of the handle, and the pin rod is inserted into the pin groove.

[0008] Preferably, a slot pad is fixedly installed on the inner wall of the pin slot, and the slot pad is in close contact with the outer wall surface of the pin rod. The slot pad is made of wear-resistant rubber. By setting the slot pad, the connection tightness between the pin rod and the pin slot can be increased, thereby ensuring the stability of the saw blade during use.

[0009] Preferably, the number of the pin rods and the number of the pin grooves are both two.

[0010] Preferably, one end of the saw blade is fixedly connected to a fixed block 1 by a bolt, a connecting plate is fixedly installed on the top of the handle, a saw bow is fixedly installed on the top of the connecting plate, one end of the fixed block 1 is fixedly installed with a connecting rod, and one end of the connecting rod is rotatably connected to the inner wall of the saw bow through a bearing 2.

[0011] Preferably, the fixed sleeve on the outer wall of the handle is provided with a grip sleeve, and the provision of the grip sleeve increases the comfort of the doctor when using the bone saw.

[0012] Preferably, the other end of the handle is rotatably connected to the connecting shaft through a bearing, and a pull ring is fixedly installed on one end of the connecting shaft. By arranging the connecting shaft and the pull ring, it is convenient for doctors to carry and use the bone saw.

[0013] Preferably, the movable plate is adapted to the movable groove.

[0014] The utility model provides a novel surgical bone saw. The novel surgical bone saw has the following beneficial effects:

[0015] (1) The new surgical bone saw, by providing a fixed rotating mechanism, can facilitate doctors to use saw teeth of different sizes at the upper and lower ends of the saw blade, without having to re-disassemble the saw blade, making it easier for doctors to operate and use, thereby improving doctors' work efficiency. This solves the problem in the referenced documents that bone saws need to re-disassemble the saw blade when different-sized saw teeth are needed, which is inconvenient to use;

[0016] (2) The new surgical bone saw can increase the tightness of the connection between the pin rod and the pin slot by setting a slot pad, thereby ensuring the stability of the saw blade. By setting a connecting shaft and a pull ring, it is convenient for doctors to carry and use the bone saw. It has a simple structure and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a front cross-sectional structural diagram of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0020] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0021] In the figure: 1. Handle 2. Fixed rotating mechanism 3. Saw blade 4. Fixed block 1 5. Slot pad 6. Connecting plate 7. Saw bow 8. Connecting rod 9. Fixed block 2 10. Pull ring 11. Connecting shaft 12. Grip 201. Rotating column 202. Moving groove 203. Moving plate 204. Limiting shaft 205. Limiting shaft hole 206. Spring 207. Pin rod 208. Pin groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] like Figure 1-4 As shown, the utility model provides a technical solution: a new type of surgical bone saw, comprising a handle 1, a saw blade 3, and a fixed block 4. The saw blade 3 and the fixed block 4 are fixedly connected by bolts, one end of the saw blade 3 is fixedly connected to the fixed block 4 by bolts, a connecting plate 6 is fixedly installed on the top of the handle 1, a saw bow 7 is fixedly installed on the top of the connecting plate 6, a connecting rod 8 is fixedly installed on one end of the fixed block 4, one end of the connecting rod 8 is rotatably connected to the inner wall of the saw bow 7 through a second bearing, a grip sleeve 12 is fixedly provided on the outer wall of the handle 1, and the provision of the grip sleeve 12 increases the comfort of the doctor when using the bone saw, the other end of the handle 1 is rotatably connected to the connecting shaft 11 through a third bearing, a pull ring 10 is fixedly installed on one end of the connecting shaft 11, and the provision of the connecting shaft 11 and the pull ring makes it convenient for the doctor to carry and use the bone saw, and a fixed rotating mechanism 2 is provided between the fixed block 4 and the handle 1;

[0026] The fixed rotation mechanism 2 includes a rotating column 201 and a movable plate 203. The fixed block 4 is fixedly installed at one end of the rotating column 201. The other end of the rotating column 201 is rotatably connected to one end of the handle 1 through a bearing 1. A movable groove 202 is provided on the rotating column 201. A limiting shaft 204 is fixedly installed on the inner wall of the movable groove 202. The movable plate 203 is slidably connected to the inner wall of the movable groove 202. The movable plate 203 is adapted to the movable groove 202. A limiting shaft hole 205 is provided on the movable plate 203. The limiting shaft 204 movably passes through the movable plate 203 through the limiting shaft hole 205. A spring 206 is wound around the outer wall of the limiting shaft 204. One end of the spring 206 is fixedly installed on the inner wall of the movable groove 202. The other end of the spring 206 is fixedly installed on one side of the movable plate 203. A pin is fixedly installed on the other side of the movable plate 203 207. A pin groove 208 is provided at one end of the handle 1, and the pin rod 207 is inserted into the pin groove 208. There are two pin rods 207 and two pin grooves 208. A slot pad 5 is fixedly installed on the inner wall of the pin groove 208. The slot pad 5 is in close contact with the outer wall surface of the pin rod 207. The slot pad 5 is made of wear-resistant rubber. By providing the slot pad 5, the tightness of the connection between the pin rod 207 and the pin groove 208 can be increased, thereby ensuring the stability of the saw blade 3. By providing the fixed rotating mechanism 2, it is convenient for the doctor to use the saw teeth of different sizes at the upper and lower ends of the saw blade 3, and there is no need to re-disassemble the saw blade 3, which is convenient for the doctor to operate and use, thereby improving the doctor's work efficiency, and solving the problem in the comparative document that when the bone saw needs to use saw teeth of different sizes, the saw blade needs to be re-disassembled and used, which is inconvenient to use.

[0027] When the new surgical bone saw is in use, the movable plate 203 is pulled, the movable plate 203 compresses the spring 208, and the movable plate 203 drives the pin rod 207 to move, so that the pin rod 207 is disengaged from the pin groove 208. When the pin rod 207 is completely disengaged from the pin groove 208, the saw blade 3 can be rotated to turn the saw blade 3 180 degrees, and then the movable plate 203 is released. The movable plate 203 drives the pin rod 207 to reset and move under the restoring force of the spring 206, so that the pin rod 207 is inserted into the pin groove 208 again, limiting the rotating column 201, thereby fixing the saw blade 3. The mechanism makes it convenient for doctors to use the saw teeth of different sizes at the upper and lower ends of the saw blade 3, and there is no need to re-disassemble the saw blade 3, which is convenient for doctors to operate and use, thereby improving the doctor's work efficiency, and solves the problem in the comparative documents that when the bone saw needs to use saw teeth of different sizes, the saw blade needs to be re-disassembled and used, which is inconvenient to use; by arranging the slot pad 5, the connection tightness between the pin rod 207 and the pin slot 208 can be increased, thereby ensuring the stability of the saw blade 3; by arranging the connecting shaft 11 and the pull ring 10, it is convenient for doctors to carry and use the bone saw, and the structure is simple and practical.

[0028] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a reference structure" does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel bone saw for surgery, comprising a handle (1), a saw blade (3), and a fixing block (4), characterized in that: The saw blade (3) is fixedly connected to the fixing block (4) by means of bolts, and a fixing rotation mechanism (2) is provided between the fixing block (4) and the handle (1); The fixed rotation mechanism (2) comprises a rotating column (201) and a movable plate (203); the fixed block (4) is fixedly mounted on one end of the rotating column (201); the other end of the rotating column (201) is rotatably connected to one end of the handle (1) via a bearing (1); a movable groove (202) is provided on the rotating column (201); a limit axis (204) is fixedly mounted on the inner wall of the movable groove (202); the movable plate (203) is slidably connected to the inner wall of the movable groove (202); a limit axis hole (205) is provided on the movable plate (203) ), the limiting shaft (204) movably passes through the movable plate (203) through the limiting shaft hole (205), a spring (206) is wound around the outer wall of the limiting shaft (204), one end of the spring (206) is fixedly mounted on the inner wall of the movable groove (202), the other end of the spring (206) is fixedly mounted on one side of the movable plate (203), a pin rod (207) is fixedly mounted on the other side of the movable plate (203), one end of the handle (1) is provided with a pin groove (208), and the pin rod (207) is inserted into the pin groove (208).

2. A novel surgical bone saw according to claim 1, characterized in that: A slot pad (5) is fixedly mounted on the inner wall of the pin slot (208), the slot pad (5) is in close contact with the outer wall surface of the pin rod (207), and the slot pad (5) is made of wear-resistant rubber.

3. A new type of surgical bone saw according to claim 1, characterized in that: The number of the pin rods (207) and the number of the pin grooves (208) are both two.

4. A novel surgical bone saw according to claim 1, characterized in that: One end of the saw blade (3) is fixedly connected to a fixing block (4) by means of bolts, a connecting plate (6) is fixedly mounted on the top of the handle (1), a saw bow (7) is fixedly mounted on the top of the connecting plate (6), a connecting rod (8) is fixedly mounted on one end of the fixing block (4), and one end of the connecting rod (8) is rotatably connected to the inner wall of the saw bow (7) by means of a second bearing.

5. A novel surgical bone saw according to claim 1, characterized in that: The outer wall of the handle (1) is fixedly sleeved with a grip sleeve (12).

6. The novel surgical bone saw according to claim 1, characterized in that: The other end of the handle (1) is rotatably connected to a connecting shaft (11) via a bearing, and a pull ring (10) is fixedly mounted on one end of the connecting shaft (11).

7. A novel surgical bone saw according to claim 1, characterized in that: The movable plate (203) is adapted to the movable groove (202).

Images