File for operation

Abstract

The utility model relates to the technical field of medical instruments, in particular to an operation file which comprises a file head assembly, the file head assembly comprises a file tooth piece and a file handle, the file tooth piece comprises a file board and a plurality of file teeth fixed on the file board, the file teeth are arranged on the front face and the back face of the file board and one side face connected between the front face and the back face, and the file handle is arranged on the file tooth piece. And the file handle is connected with the file board. According to the file, the file teeth are fixed to the front face and the back face of the file board and the end face between the front face and the back face of the file board, multi-directional grinding treatment can be achieved without replacing and adjusting the file tool during grinding treatment, use is flexible and convenient, and operation efficiency is improved to a certain degree.

Description

Technical Field

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

[0002] Orthopedics mainly studies the anatomy, physiology and pathology of the musculoskeletal system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system. In clinical orthopedic surgery, common cervical spondylosis and lumbar disc herniation are frequently occurring and common diseases. Patients who fail to respond to conservative treatment must undergo surgery, which can remove protruding disc tissue and hyperplastic calcified tissue that compress the nerves. When performing bone trimming for patients, bone files, orthopedic scrapers and other instruments are often used.

[0003] Bone files are often used to grind bone tissue during orthopedic or spinal surgery. During the operation, it is often difficult to control the processing position. For example, when it is necessary to grind multiple positions at the same time, such as directly below, directly in front, or on the inner side, it is generally necessary to disassemble and switch the tool, which increases the operation time and makes the operation less efficient. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a surgical file to at least solve the problem that the existing surgical files need to be disassembled and switched when grinding multiple positions such as directly below, directly in front or on the inner side at the same time, resulting in low surgical efficiency.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] The utility model discloses a surgical file, comprising a file head assembly, wherein the file head assembly comprises a file tooth part and a file handle, wherein the file tooth part comprises a file plate and a plurality of file teeth fixed on the file plate, the front and back sides of the file plate and a side surface connecting the front and back sides are both arranged with file teeth, and the file handle is connected to the file plate.

[0007] The file using the above technical solution has file teeth fixed on both sides of the file plate and on the end face between the front and back sides of the file plate. When performing grinding processing, multi-directional grinding processing can be achieved without replacing or adjusting the file tool. It is flexible and convenient to use, and improves the surgical efficiency to a certain extent.

[0008] In some embodiments, the depths of the plurality of file teeth gradually decrease from the middle of the file plate to both sides.

[0009] In some embodiments, the file plate has a chip removal groove between two adjacent file teeth.

[0010] In some embodiments, the file handle is a hollow tubular structure, and a water outlet hole is provided on the file handle, and the water outlet hole is communicated with the hollow interior of the file handle.

[0011] In some embodiments, the file further includes a drive adapter assembly for driving the file head assembly to swing back and forth, the drive adapter assembly including a drive shaft, a shift fork, a first bearing and an input shaft, one end of the drive shaft is connected to the file handle, and the shift fork is fixedly mounted on the other end, the fork mouth of the shift fork is sleeved on the first bearing, one end of the input shaft has an eccentric shaft, the eccentric shaft is eccentrically arranged with respect to the input shaft, and the eccentric shaft is inserted into the first bearing.

[0012] In some embodiments, one end of the drive shaft is a hollow tubular structure, the drive shaft has a water inlet hole, the water inlet hole is connected to the hollow interior of the drive shaft, the file handle is plugged into the drive shaft, and the hollow interior of the file handle is connected to the hollow interior of the drive shaft, and the water outlet hole is located on the outside of the drive shaft.

[0013] In some embodiments, a support tube is sleeved on the driving shaft, and a first step hole is formed inside the end of the support tube away from the file handle, and the water inlet hole is located in the first step hole.

[0014] In some embodiments, the file further includes a front outer shell and a rear outer shell that are sealed and connected, a spiral water cooling jacket is disposed in the rear outer shell, a spiral channel is provided on the outer wall of the spiral water cooling jacket, a second step hole is provided inside the front outer shell, a water injection hole is provided on the shell body of the front outer shell at a position corresponding to the water outlet end of the spiral channel, the water injection hole is connected with the second step hole, the support tube is inserted in the front outer shell, and the first step hole is connected with the second step hole to form a water injection chamber.

[0015] In some embodiments, a sealing bushing is sleeved on one end of the driving shaft away from the file handle, one end of the sealing bushing is inserted into the front housing, and the other end is located in the water injection cavity.

[0016] In some embodiments, a sealing sleeve is sleeved on the sealing bushing, the sealing sleeve is located in the water injection cavity, one end of the sealing sleeve is sleeved on the driving shaft, and the other end is sleeved on the sealing bushing.

[0017] The file of the utility model drives the input shaft to rotate under the rotation of the external motor, so that the eccentric shaft on the input shaft rotates eccentrically, and then drives the first bearing to slide and cooperate in the fork of the shift fork, drives the shift fork to swing back and forth in the circumferential direction, and then drives the drive shaft to swing back and forth, and drives the file teeth to swing back and forth to grind the bone tissue. The interior of the file of the utility model can be filled with water through the water injection channel and the water injection cavity, as well as the hollow interior of the drive shaft, and the water flows out from the water outlet of the file handle, so as to achieve flushing and cooling of the grinding position, and further improve the grinding efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a cross-sectional view of the surgical file of the utility model;

[0019] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 It is a structural schematic diagram of a surgical file of the utility model;

[0021] Figure 4 is an enlarged structural schematic diagram of the file head assembly;

[0022] Figure 5 It is a schematic diagram of the enlarged structure of the input shaft;

[0023] Figure 6 It is an enlarged structural schematic diagram of the drive shaft;

[0024] Among them, the file tooth part 110, the file plate 111, the file tooth 112, the file handle 120, the water outlet hole 121, the drive shaft 210, the water inlet hole 211, the shift fork 220, the first bearing 230, the input shaft 240, the eccentric shaft 250, the support tube 260, the first step hole 261, the front shell 310, the groove 311, the water injection hole 312, the rear shell 320, the retaining ring 321, the spiral water cooling jacket 330, the spiral channel 331, the sealing bushing 410, the sealing sleeve 420, the second bearing 430, the transfer tube 440, the water injection chamber 001, and the chip removal groove 002. DETAILED DESCRIPTION

[0025] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0026] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the figures, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] Please refer to Figure 1-6 The surgical file of the utility model includes a file head assembly, which includes a file tooth part 110 and a file handle 120. The file tooth part 110 includes a file plate 111 and a plurality of file teeth 112 fixed on the file plate 111. The file teeth 112 are arranged on both the front and back sides of the file plate 111 and a side surface connecting the front and back sides. The file handle 120 is connected to the file plate 111.

[0028] Please refer to Figure 4 In this embodiment, the file teeth 112 are fixed on both the front and back sides of the file plate 111 and the end surface between the front and back sides of the file plate 111. When performing the grinding process, it is not necessary to replace and adjust the file tool to achieve multi-directional grinding, which is flexible and convenient to use. The tooth edge of the file tooth 112 can be set to extend from the front side of the file plate 111 to the side and then to the back side of the file plate 111, that is, the tooth edge of each file tooth 112 is continuous on the front and back sides and the side of the file plate 111.

[0029] In this embodiment, in order to avoid accidental damage to non-grinding tissue adjacent to the grinding tissue, the depth of the plurality of file teeth 112 is gradually reduced from the middle of the file plate 111 to both sides, that is, the depth of the file teeth 112 located in the middle of the file plate 111 is greater than the depth of the file teeth 112 located at the edge of the file plate 111, so as to control and adjust the specific grinding position during grinding to avoid or reduce the contact between the tooth edge and the non-grinding tissue.

[0030] In this embodiment, in order to prevent the accumulation of fine chips generated when grinding bone tissue and affect the grinding efficiency and effect, a chip removal groove 002 is provided between two adjacent file teeth 112 on the file plate 111, which is used to discharge the fine chips generated when grinding bone tissue and prevent their accumulation from affecting the grinding effect and efficiency. When the file head assembly performs reciprocating swing motion, the fine chips accumulated in the chip removal groove 002 will be thrown out under the centrifugal force generated by the swing, and then the fine chips will be discharged, thereby improving the grinding efficiency.

[0031] In this embodiment, the file handle 120 is a hollow tubular structure, and a water outlet 121 is provided on the file handle 120, and the water outlet 121 is connected to the hollow interior of the file handle 120. By injecting water into the file handle 120 and flowing out from the water outlet 121, the grinding position can be flushed and cooled, and the grinding efficiency can be further improved. The center line of the file handle 120 and the center line of the file plate 111 intersect and have a certain angle, so that the force is uniform when grinding bone tissue, it is more stable when grinding bone tissue, and it is easy to control the file plate 111.

[0032] In this embodiment, the file further includes a drive adapter assembly for driving the file head assembly to reciprocate, and the drive adapter assembly includes a drive shaft 210, a shift fork 220, a first bearing 230 and an input shaft 240. One end of the drive shaft 210 is connected to the file handle 120, and the shift fork 220 is fixedly installed on the other end. The fork of the shift fork 220 is sleeved on the first bearing 230. Figure 5 One end of the input shaft 240 has an eccentric shaft 250, which is eccentrically arranged with the input shaft 240 and inserted into the first bearing 230. The input shaft 240 is connected to the rotating shaft of an external driving motor. When the driving motor is started, the input shaft 240 is driven to rotate, thereby driving the eccentric shaft 250 on the input shaft 240 to rotate eccentrically, driving the first bearing 230 to slide in the fork of the shift fork 220, driving the shift fork 220 to swing back and forth in the circumferential direction, thereby driving the driving shaft 210 to swing back and forth, and driving the rasp tooth 110 to swing back and forth to grind the bone tissue.

[0033] In this embodiment, one end of the driving shaft 210 is a hollow tubular structure, and the driving shaft 210 has a water inlet hole 211, which is connected to the hollow interior of the driving shaft 210. The file handle 120 is plugged into the driving shaft 210, and the hollow interior of the file handle 120 is connected to the hollow interior of the driving shaft 210. The water outlet hole 121 is located outside the driving shaft 210. By injecting water into the interior of the driving shaft 210 through the water inlet hole 211, water can be injected into the interior of the file handle 120 to achieve flushing and cooling of the grinding position.

[0034] In this embodiment, in order to enhance the rigidity of the driving shaft 210 , a support tube 260 is sleeved on the driving shaft 210 . The support tube 260 has a first step hole 261 inside one end away from the file handle 120 , and the water inlet hole 211 is located in the first step hole 261 .

[0035] In this embodiment, the file further comprises a front shell 310 and a rear shell 320 which are sealed and connected. The front shell 310 is inserted into the rear shell 320. The outer wall of the front shell 310 has a slot 311. The rear shell 320 has a snap ring 321 at a position corresponding to the slot 311. The snap ring 321 is embedded in the slot 311 and sealed with glue. A spiral water cooling jacket 330 is arranged in the rear shell 320. The outer wall of the spiral water cooling jacket 330 has a spiral channel 331. The interior of the front shell 310 has a second step hole. The shell of the front shell 310 has a water injection hole 312 at a position corresponding to the water outlet end of the spiral channel 331. The water injection hole 312 is connected to the second step hole. The support pipe 260 is inserted into the front shell 310, and the first step hole 261 is connected to the second step hole to form a water injection cavity 001. In order to make the rotation of the input shaft 240 more stable, a transfer tube 440 is installed inside the spiral water cooling jacket 330 , and a second bearing 430 is installed on the input shaft 240 . The second bearing 430 is located inside the transfer tube 440 .

[0036] In this embodiment, in order to enhance the sealing performance of the water injection chamber 001, a sealing bushing 410 is sleeved on one end of the driving shaft 210 away from the file handle 120, one end of the sealing bushing 410 is inserted into the front housing 310, and the other end is located in the water injection chamber 001. The sealing bushing 410 and the front housing 310 are sealed by glue. A sealing sleeve 420 is sleeved on the sealing bushing 410, and the sealing sleeve 420 is located in the water injection chamber 001. One end of the sealing sleeve 420 is sleeved on the driving shaft 210, and the other end is sleeved on the sealing bushing 410. The sealing sleeve 420 further enhances the sealing performance of the water injection chamber 001, and prevents water from entering the gap between the sealing bushing 410 and the driving shaft 210.

[0037] The file of the utility model drives the input shaft 240 to rotate under the rotation of the external motor, so that the eccentric shaft 250 on the input shaft 240 rotates eccentrically, and then drives the first bearing 230 to slide and cooperate in the fork of the fork 220, drives the fork 220 to swing back and forth in the circumferential direction, and then drives the drive shaft 210 to swing back and forth, and drives the file teeth 110 to swing back and forth to grind the bone tissue. The file teeth 112 arranged on three sides of the file plate 111 can realize multi-directional bone tissue grinding without disassembling and adjusting the tool, which is flexible and convenient to use, and further improves the grinding efficiency.

[0038] The file of the utility model injects water into the spiral channel 331 on the spiral water-cooling jacket 330. The injected water enters the water injection chamber 001 through the water injection hole 312 of the front shell 310, and enters the driving shaft 210 through the water inlet hole 211 located in the water injection chamber 001, enters the hollow interior of the file handle 120 through the hollow interior of the driving shaft 210, and finally flows out from the water outlet 121, so as to achieve flushing and cooling of the grinding position, and further improve the grinding efficiency and effect.

[0039] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A surgical file, characterized in that: The invention comprises a file head assembly, wherein the file head assembly comprises a file tooth part and a file handle, wherein the file tooth part comprises a file plate and a plurality of file teeth fixed on the file plate, file teeth are arranged on both the front and back sides of the file plate and a side surface connecting the front and back sides, and the file handle is connected to the file plate.

2. The surgical file according to claim 1, characterized in that: The depths of the plurality of file teeth gradually decrease from the middle of the file plate to both sides.

3. The surgical file according to claim 1, characterized in that: The file plate is provided with a chip removal groove between two adjacent file teeth.

4. The surgical file according to claim 1, characterized in that: The file handle is a hollow tubular structure, and is provided with a water outlet hole, which is communicated with the hollow interior of the file handle.

5. The surgical file according to claim 4, characterized in that: The file also includes a drive adapter assembly for driving the file head assembly to swing back and forth, the drive adapter assembly includes a drive shaft, a shift fork, a first bearing and an input shaft, one end of the drive shaft is connected to the file handle, and the shift fork is fixedly installed on the other end, the fork mouth of the shift fork is sleeved on the first bearing, one end of the input shaft has an eccentric shaft, the eccentric shaft is eccentrically arranged with the input shaft, and the eccentric shaft is inserted into the first bearing.

6. The surgical file according to claim 5, characterized in that: One end of the drive shaft is a hollow tubular structure, and the drive shaft is provided with a water inlet hole, which is connected to the hollow interior of the drive shaft. The file handle is plugged into the drive shaft, and the hollow interior of the file handle is connected to the hollow interior of the drive shaft. The water outlet is located on the outside of the drive shaft.

7. The surgical file according to claim 6, characterized in that: A support tube is sleeved on the driving shaft, and a first step hole is formed inside the end of the support tube away from the file handle, and the water inlet hole is located in the first step hole.

8. The surgical file according to claim 7, characterized in that: The file also includes a front shell and a rear shell that are sealed and connected. A spiral water cooling jacket is arranged in the rear shell, and a spiral channel is provided on the outer wall of the spiral water cooling jacket. The interior of the front shell has a second step hole, and the shell of the front shell has a water injection hole at a position corresponding to the water outlet end of the spiral channel. The water injection hole is connected to the second step hole. The support pipe is inserted in the front shell, and the first step hole is connected to the second step hole to form a water injection chamber.

9. The surgical file according to claim 8, characterized in that: A sealing bushing is sleeved on one end of the driving shaft away from the file handle, one end of the sealing bushing is inserted into the front shell, and the other end is located in the water injection cavity.

10. The surgical file according to claim 9, characterized in that: A sealing sleeve is sleeved on the sealing sleeve, and the sealing sleeve is located in the water injection cavity. One end of the sealing sleeve is sleeved on the driving shaft, and the other end is sleeved on the sealing sleeve.

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