Saw blade with sheath

Abstract

The utility model provides a saw blade with a sheath, which relates to the technical field of medical instruments and comprises a sheath upper body, a sheath lower body arranged below the sheath upper body, a saw blade body arranged between the sheath upper body and the sheath lower body, sawteeth arranged at one end of the saw blade body, chip grooves arranged on the outer sides of the sheath upper body and the sheath lower body, and a blade arranged on the saw blade body. A splitting mechanism is arranged on one side of the lower sheath body and comprises a threaded pipe, and a threaded ring penetrates through the outer surface of the threaded pipe. According to the utility model, through the internal components of the splitting mechanism, a worker can open the sheath upper body and the sheath lower body, so that the saw blade body between the sheath upper body and the sheath lower body can be taken out, and the worker can conveniently clean and disinfect the sheath upper body, the sheath lower body and the saw blade body and reassemble the sheath upper body, the sheath lower body and the saw blade body after disinfection and sterilization for secondary use; therefore, the treatment cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of saw blades, in particular to a saw blade with a sheath. Background Art

[0002] In orthopedic surgery, medical personnel generally use an oscillating saw device to saw bones. The oscillating saw device is generally composed of a saw blade, a handpiece and a sheath. The handpiece drives the saw blade to swing, and the sheath is installed on the outside of the saw blade. When the saw blade removes bone tissue, the sheath reduces the abrasion or burns to human tissue caused by severe wear of the saw blade, thereby reducing trauma during and after the operation.

[0003] Since existing sheathed saw blades are usually welded structures, the sheath and the saw blade cannot be separated, which makes it difficult for staff to clean the inside of the saw blade and the sheath, which is not conducive to the cleaning and disinfection of the inside of the sheath and the saw blade. As a result, most of the sheathed saw blades are disposable products and cannot be used a second time. Each time the sheathed saw blade is used, a new saw blade needs to be replaced, which increases the patient's medical expenses. Therefore, a saw blade with a sheath is urgently needed to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provide a saw blade with a sheath.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a saw blade with a sheath, comprising a sheath upper body, a sheath lower body is arranged below the sheath upper body, a saw blade body is arranged between the sheath upper body and the sheath lower body, one end of the saw blade body is provided with saw teeth, the outer sides of the sheath upper body and the sheath lower body are provided with chip grooves, a splitting mechanism is provided on one side of the sheath lower body, the splitting mechanism comprises a threaded tube, a threaded ring passes through the outer surface of the threaded tube, a sliding tube passes through the interior of the threaded tube, and a buckle is provided on the outer surface of the sliding tube.

[0006] Preferably, the saw blade body is located inside a slot opened on one side of the upper body of the sheath, one end of the threaded tube is welded to one side of the lower body of the sheath, one end of the sliding tube is welded to one side of the upper body of the sheath, the sliding tube is slidably connected to the threaded tube, one side of the buckle is welded to the outer surface of the sliding tube, the buckle is located in a slot opened on the outer surface of the threaded tube, the buckle is slidably connected to the threaded tube, and a spring is provided inside the threaded tube.

[0007] Preferably, one end of the spring is welded to the inner wall of a slot provided inside the threaded tube, the threaded ring is threadedly connected to the threaded tube, and a sliding groove is provided on the inner surface of the threaded ring.

[0008] Preferably, a positioning tube is welded on one side of the upper body of the protective sheath, a positioning column is provided on one side of the lower body of the protective sheath, and the positioning tube is slidably connected to the positioning column.

[0009] Preferably, a clamping mechanism is provided on one side of the lower body of the sheath, and the clamping mechanism includes a spring sheet. One side of the lower body of the sheath is fixedly connected to one end of the spring sheet by a bolt, and a saw pressing groove is provided on one side of the saw blade body.

[0010] Preferably, one end of the spring piece is fixedly connected to the limiting block by a bolt, and a ball is movably connected inside a slot opened on one side of the limiting block, and the ball is located in the pressure saw groove.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] The utility model, through the internal components of the disassembly mechanism, personnel can open the space between the sheath upper body and the sheath lower body, so that the saw blade body between the two can be taken out, thereby facilitating the staff to clean and disinfect the sheath upper body, the sheath lower body and the saw blade body, and reassemble the three after disinfection and sterilization for secondary use, thereby reducing the cost of treatment, and through the internal components of the compression mechanism, it is possible to prevent the saw blade body from easily shaking up and down between the sheath upper body and the sheath lower body to a certain extent, thereby affecting the normal operation of the saw blade body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a three-dimensional diagram of a saw blade with a sheath provided by the present invention.

[0014] Figure 2 This is a partial stereoscopic view of a saw blade with a sheath provided by the utility model.

[0015] Figure 3 A three-dimensional diagram of a clamping mechanism of a saw blade with a sheath provided by the utility model.

[0016] Figure 4 This is an enlarged view of region A of a saw blade with a sheath provided by the utility model.

[0017] Figure 5 The present invention is a disassembly diagram of a disassembly mechanism for a saw blade with a sheath provided by the present invention.

[0018] Legend:

[0019] 1. Sheath upper body; 11. Positioning tube; 2. Sheath lower body; 21. Positioning column; 3. Saw blade body; 31. Saw teeth; 4. Chip groove; 5. Splitting mechanism; 51. Threaded tube; 52. Threaded ring; 53. Sliding tube; 54. Buckle; 55. Spring; 56. Sliding groove; 6. Clamping mechanism; 61. Spring piece; 62. Limit block; 63. Ball; 64. Press saw groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a saw blade with a sheath, including a sheath upper body 1, a sheath lower body 2 is arranged below the sheath upper body 1, a saw blade body 3 is arranged between the sheath upper body 1 and the sheath lower body 2, one end of the saw blade body 3 is provided with saw teeth 31, the outer sides of the sheath upper body 1 and the sheath lower body 2 are both provided with chip removal grooves 4, one side of the sheath lower body 2 is provided with a splitting mechanism 5, the splitting mechanism 5 includes a threaded tube 51, the outer surface of the threaded tube 51 is penetrated by a threaded ring 52, the interior of the threaded tube 51 is penetrated by a slide tube 53, the outer surface of the slide tube 53 is provided with a buckle 54, the saw blade body 3 is located in the sheath Inside the slot opened on one side of the sheath upper body 1, one end of the threaded tube 51 is welded to one side of the sheath lower body 2, one end of the sliding tube 53 is welded to one side of the sheath upper body 1, the sliding tube 53 is slidably connected to the threaded tube 51, one side of the buckle 54 is welded to the outer surface of the sliding tube 53, the buckle 54 is located in the slot opened on the outer surface of the threaded tube 51, the buckle 54 is slidably connected to the threaded tube 51, a spring 55 is provided inside the threaded tube 51, one end of the spring 55 is welded to the inner wall of the slot opened inside the threaded tube 51, the threaded ring 52 is threadedly connected to the threaded tube 51, and a sliding groove 56 is provided on the inner surface of the threaded ring 52.

[0023] In this embodiment, by disassembling the internal components of the mechanism 5, a person can open the sheath upper body 1 and the sheath lower body 2, so that the saw blade body 3 between the two can be taken out, so as to facilitate the staff to clean and disinfect the sheath upper body 1, the sheath lower body 2 and the saw blade body 3, and reassemble the three after disinfection and sterilization for secondary use, thereby reducing the cost of treatment. The saw blade body 3 is located between the sheath upper body 1 and the sheath lower body 2, and the saw teeth 31 provided at one end of the saw blade body 3 extend from the port on the same side of the sheath upper body 1 and the sheath lower body 2, and the other end of the saw blade body 3 is connected to the driving mechanism, and the driving mechanism drives the saw blade body 3 to swing when it works. One end of the threaded tube 51 is connected to the sheath lower body 2, and one end of the sliding tube 53 is connected to one side of the sheath upper body 1, and the sliding tube 53 can slide in and out inside the threaded tube 51, and the outer surface of the sliding tube 53 is connected to When the slide tube 53 slides into the interior of the threaded tube 51, the buckle 54 gradually slides into the slot provided on the outer surface of the threaded tube 51 after passing through the slot 56. In the process, the slide tube 53 gradually squeezes the spring 55 connected to the inside of the threaded tube 51 until the buckle 54 is located on one side of the threaded ring 52. Then, the threaded ring 52 is rotated so that the slot 56 provided on the inner surface of the threaded ring 52 gradually moves away from the buckle 54. The buckle 54 can no longer slide through the slot 56, thus completing the position limiting between the sheath upper body 1 and the sheath lower body 2. In addition, when the staff rotates the threaded ring 52 to release the position limiting between the sheath upper body 1 and the sheath lower body 2, the compressed spring 55 is restored to help the buckle 54 slide on the slot 56, making it convenient for the staff to disassemble and take the sheath upper body 1 and the sheath lower body 2.

[0024] Example 2

[0025] like Figure 1-Figure 5 As shown, a positioning tube 11 is welded on one side of the upper body 1 of the sheath, a positioning column 21 is provided on one side of the lower body 2 of the sheath, the positioning tube 11 is slidably connected to the positioning column 21, a clamping mechanism 6 is provided on one side of the lower body 2 of the sheath, the clamping mechanism 6 includes a spring piece 61, one side of the lower body 2 of the sheath is fixedly connected to one end of the spring piece 61 by a bolt, a saw pressure groove 64 is provided on one side of the saw blade body 3, one end of the spring piece 61 is fixedly connected to a limiting block 62 by a bolt, a ball 63 is movably connected inside the card slot provided on one side of the limiting block 62, and the ball 63 is located in the saw pressure groove 64.

[0026] In this embodiment, the internal components of the clamping mechanism 6 can prevent the saw blade body 3 from easily shaking up and down between the sheath upper body 1 and the sheath lower body 2 to a certain extent, thereby affecting the normal operation of the saw blade body 3. After the sheath upper body 1, the sheath lower body 2 and the saw blade body 3 are disinfected and cleaned, the positioning tube 11 and the positioning column 21 help the three to be reassembled together. When the slot opened at one end of the positioning tube 11 is aligned with the positioning column 21, the sliding tube 53 and the threaded tube 51 are helped to be aligned. When the positioning column 21 slides into the interior of the positioning tube 11, the sliding tube 53 gradually slides into the interior of the threaded tube 51, and at the same time, the ball 63 gradually slides into the interior of the saw pressure groove 64, and gradually contacts the inner wall of the saw pressure groove 64, and cooperates with the limit block 62 to squeeze the spring piece 61, thereby preventing the saw blade body 3 from easily shaking up and down between the sheath upper body 1 and the sheath lower body 2 to a certain extent, and the limit block 62 limits the position of the ball 63, but does not limit the rolling of the ball 63, thereby preventing the ball 63 from hindering the saw blade body 3 from swinging during operation.

[0027] Working principle:

[0028] like Figure 1-Figure 5 As shown, first, when the staff needs to disinfect and clean the sheath upper body 1, the sheath lower body 2 and the saw blade body 3, the staff rotates the threaded ring 52 so that the slide groove 56 opened on the inner surface of the threaded ring 52 is gradually aligned with the buckle 54. When the two are aligned, the compressed spring 55 recovers to help the buckle 54 slide on the slide groove 56. At the same time, the slide tube 53 gradually slides out of the threaded tube 51, and the staff can separate the sheath upper body 1 from the sheath lower body 2. Secondly, the staff disinfects and cleans the disassembled sheath upper body 1, the sheath lower body 2 and the saw blade body 3. After drying, the staff assembles the three together for secondary use.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A saw blade with a sheath, characterized in that: The utility model comprises a sheath upper body (1), a sheath lower body (2) is arranged below the sheath upper body (1), a saw blade body (3) is arranged between the sheath upper body (1) and the sheath lower body (2), one end of the saw blade body (3) is provided with saw teeth (31), the outer sides of the sheath upper body (1) and the sheath lower body (2) are provided with chip grooves (4), one side of the sheath lower body (2) is provided with a splitting mechanism (5), the splitting mechanism (5) comprises a threaded tube (51), the outer surface of the threaded tube (51) is penetrated by a threaded ring (52), the interior of the threaded tube (51) is penetrated by a sliding tube (53), and the outer surface of the sliding tube (53) is provided with a buckle (54).

2. A saw blade with a sheath according to claim 1, characterized in that: The saw blade body (3) is located in a slot opened on one side of the sheath upper body (1); one end of the threaded tube (51) is welded to one side of the sheath lower body (2); one end of the slide tube (53) is welded to one side of the sheath upper body (1); the slide tube (53) is slidably connected to the threaded tube (51); one side of the buckle (54) is welded to the outer surface of the slide tube (53); the buckle (54) is located in a slot opened on the outer surface of the threaded tube (51); the buckle (54) is slidably connected to the threaded tube (51); a spring (55) is provided inside the threaded tube (51).

3. A saw blade with a sheath according to claim 2, characterized in that: One end of the spring (55) is welded to the inner wall of a slot provided inside the threaded tube (51); the threaded ring (52) is threadedly connected to the threaded tube (51); and a sliding groove (56) is provided on the inner surface of the threaded ring (52).

4. The saw blade with a sheath according to claim 1, characterized in that: A positioning tube (11) is welded to one side of the protective sheath upper body (1), a positioning column (21) is provided to one side of the protective sheath lower body (2), and the positioning tube (11) is slidably connected to the positioning column (21).

5. The saw blade with a sheath according to claim 1, characterized in that: A clamping mechanism (6) is provided on one side of the sheath lower body (2), and the clamping mechanism (6) includes a spring sheet (61). One side of the sheath lower body (2) is fixedly connected to one end of the spring sheet (61) via a bolt, and a saw pressing groove (64) is provided on one side of the saw blade body (3).

6. The saw blade with a sheath according to claim 5, characterized in that: One end of the spring sheet (61) is fixedly connected to a limit block (62) by means of a bolt, a groove provided on one side of the limit block (62) is movably connected with a ball (63) inside, and the ball (63) is located in the saw pressure groove (64).

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