A reamer for medullary cavity with easy cleaning

Abstract

The utility model relates to the field of marrow cavity file, especially to a marrow cavity file convenient to clean, including marrow cavity file body, marrow cavity file body includes file body, and the both sides end face of file body all are provided with a plurality of cutting teeth at equal distance, and the file body is internally provided with accommodating cavity, and the both sides end face of file body and located between two cutting teeth all are obliquely provided with the chip hole of accommodating cavity link, and the both sides end face of file body and adjacent head's one side all are obliquely provided with the auxiliary chip removal hole of accommodating cavity link, and the both sides of file body are located at corresponding auxiliary chip removal hole and all are sealed and are inserted with auxiliary limit component, and the auxiliary limit component is inserted with screw rod component screwable with file body in, in the utility model, marrow cavity file body is made through file body, cutting tooth combination, and through the cooperation of auxiliary limit component, sealing element, screw rod component and cleaning hole, main chip hole and auxiliary chip removal hole, marrow cavity file body can be completely cleaned after use.

Description

Technical Field

[0001] This utility model relates to the field of medullary canal file technology, and in particular to a medullary canal file that is easy to clean. Background Technology

[0002] The medullary reamer is a precision surgical instrument specifically designed for orthopedic surgery, particularly in total hip replacement surgery.

[0003] Traditional medullary file structures are complex, filled with deep, narrow threads and cutting teeth, creating numerous cleaning dead zones. Postoperative blood, bone fragments, and tissue can become firmly trapped in the gaps between the teeth. While some existing files utilize ultrasonic cleaning, incomplete cleaning still occurs in some cases. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a medullary canal file that facilitates cleaning.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A medullary canal file for easy cleaning includes a medullary canal file body, the medullary canal file body including a file body, a plurality of cutting teeth are evenly spaced on both ends of the file body, and a receiving cavity is formed inside the file body. Chip holes that connect with the receiving cavity are obliquely formed on both ends of the file body and between two adjacent cutting teeth. Auxiliary chip removal holes that connect with the receiving cavity are obliquely formed on both ends of the file body and on the side adjacent to the head. Auxiliary limiting components are sealed and inserted into the corresponding auxiliary chip removal holes on both sides of the file body, and a screw assembly that can be screwed into the file body is inserted into the auxiliary limiting components. A cleaning hole that connects to the receiving cavity is provided on the upper surface of the file body and on the side near the tail of the file body, and a sealing element is screwed onto the file body at the corresponding cleaning hole.

[0006] Furthermore, in a preferred configuration, the screw assembly includes a screw, with an extension rod and a handle ring sequentially disposed on one side of the screw.

[0007] Furthermore, in a preferred configuration, the auxiliary limiting component includes a sealing block, a through hole is provided in the sealing block at the extension rod of the screw assembly, and an auxiliary groove is provided on one end face of the sealing block at the corresponding handle ring, and a sealing plug is sealed and inserted into one end face of the sealing block at the auxiliary groove.

[0008] In addition, a preferred structure is that a magnet ring is fixedly embedded in the insertion surface of the sealing plug, and a magnetic layer with opposite polarity to the magnet ring is provided on the inner end face of the auxiliary groove.

[0009] Furthermore, in a preferred configuration, the seal is integrally formed from a plug rod, a screw section, and a handle, with the outer diameter of the screw section being larger than the outer diameter of the plug rod.

[0010] Furthermore, in a preferred configuration, the file body has a first threaded groove adapted to the screw on both sides at the corresponding screw location, and a second threaded groove adapted to the screw location on both sides of the file body at the corresponding screw location.

[0011] The beneficial effects of this utility model are as follows: In this invention, the medullary canal file body is made by combining the file body and cutting teeth. Furthermore, through the coordinated arrangement of auxiliary limiting components, sealing components, screw components, cleaning holes, main chip holes, and auxiliary chip removal holes, the medullary canal file body can be thoroughly cleaned after use. Attached Figure Description

[0012] Figure 1 This invention provides a partially disassembled and cross-sectional structural diagram of a medullary canal file for easy cleaning. Figure 1 ; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 for Figure 1 Enlarged structural diagram at point B; Figure 4 This invention provides a partially disassembled and cross-sectional structural diagram of a medullary canal file for easy cleaning. Figure 2 ; Figure 5 for Figure 4 Enlarged structural diagram at point C; Figure 6 for Figure 4 Enlarged structural diagram at point D.

[0013] In the diagram: 1. Medullary canal file body; 11. File body; 12. Cutting teeth; 13. Main chip hole; 14. Auxiliary chip removal hole; 15. Cleaning hole; 16. Receiving cavity; 2. Auxiliary limiting assembly; 21. Sealing block; 22. Sealing plug; 23. Screw assembly; 3. Seal; 31. Plug rod; 32. Screw section; 33. Handle. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figure 1-6A medullary canal file for easy cleaning includes a medullary canal file body 1, which includes a file body 11. A plurality of cutting teeth 12 are evenly spaced on both ends of the file body 11, and a receiving cavity 16 is formed inside the file body 11. Main chip holes 13, which connect to the receiving cavity 16, are obliquely formed on both ends of the file body 11 between adjacent cutting teeth 12. Auxiliary chip removal holes 14, which connect to the receiving cavity 16, are obliquely formed on both ends of the file body 11 near the head. Auxiliary limiting components 2 are sealed and inserted into the corresponding auxiliary chip removal holes 14 on both sides of the file body 11, and a screw assembly 23, which can be screwed onto the file body 11, is inserted into the auxiliary limiting components 2. A cleaning hole 15, which connects to the receiving cavity 16, is formed on the upper end of the file body 11 near the tail, and a sealing member 3 is screwed onto the file body 11 at the corresponding cleaning hole 15.

[0016] The screw assembly 23 includes a screw, with an extension rod and a handle ring sequentially arranged on one side of the screw. The file body 11 has first threaded grooves on both sides at the corresponding screw positions, which are adapted to the screw, and second threaded grooves on both sides of the file body 11 at the corresponding screw portions 32, which are adapted to the screw portions 32.

[0017] The auxiliary limiting component 2 includes a sealing block 21. A through hole is formed in the sealing block 21 at the extension rod of the screw assembly 23. An auxiliary groove is formed on one end face of the sealing block 21 at the corresponding handle ring. A sealing plug 22 is sealed and inserted into the auxiliary groove on one end face of the sealing block 21. A magnetic ring is fixedly embedded in the insertion surface of the sealing plug 22, and a magnetic layer with opposite polarity to the magnetic ring is provided on the inner end face of the auxiliary groove. The sealing element 3 is integrally formed from a plug rod 31, a screw portion 32, and a handle 33, with the outer diameter of the screw portion 32 being larger than the outer diameter of the plug rod 31.

[0018] In this embodiment, when it is necessary to clean the medullary canal file body 1, hold the medullary canal file body 1 and find the seal 3 on the cleaning hole 15 at the tail. Then, pinch the handle 33 and rotate it until the entire seal 3 is unscrewed from the file body. At this time, the main entrance of the receiving cavity 16 is opened, and then find the auxiliary limiting components 2 on both sides of the file head.

[0019] First, pry open the sealing plug 22 with your fingers or a tool, then grasp the handle ring of the screw assembly 23. Pull the handle ring and rotate it, causing the screw to rotate and disengage it from the first threaded groove of the file body 11. Pull the entire sealing insert 21 out of the opening on the side of the file body. At this point, the receiving cavity 16 is fully connected to the outside through the cleaning hole 15 at the tail and the auxiliary chip removal hole 14 at the head, and all the main chip holes 13 are also exposed.

[0020] Then, using a high-pressure water gun or syringe, inject a large volume of flowing water through the cleaning port 15 at the tail. The water will flow through the entire receiving cavity 16 and forcefully flush out from the auxiliary debris removal port 14 at the head and all the main debris removal ports 13 on the sides, washing away most of the remaining bone fragments and tissue. Similarly, water can be injected through the auxiliary debris removal port 14 at the head, allowing the water to flow out from the cleaning port at the tail and the debris removal ports on the sides. Ensure rinsing from different directions to cover all hard-to-reach areas.

[0021] Furthermore, the removed seal 3, sealing block 21, sealing plug 22, and screw assembly 23 are individually brushed to ensure that their threads and sealing surfaces are clean. After cleaning, the sealing block 21 is placed back into the opening of the file head, the screw assembly 23 is inserted from the outside, and rotated until it is tightened to fix the auxiliary limiting assembly. At the same time, the sealing plug 22 is aligned with the auxiliary groove and inserted. Then, the screw part 32 of the seal 3 is aligned with the cleaning hole 15 at the tail, rotated until it is tightened to ensure reliable sealing.

[0022] In this invention, the medullary canal file body is formed by combining the file body 11 and the cutting teeth 12. Furthermore, through the coordinated arrangement of the auxiliary limiting component 2, the sealing component 3, the screw assembly 23, the cleaning hole 15, the main chip hole 13, and the auxiliary chip removal hole 14, the medullary canal file body can be thoroughly cleaned after use.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A medullary canal file for easy cleaning, comprising a medullary canal file body (1), characterized in that, The medullary file body (1) includes a file body (11). A plurality of cutting teeth (12) are provided at equal intervals on both sides of the file body (11). A receiving cavity (16) is provided inside the file body (11). Chip holes (13) that connect with the receiving cavity (16) are obliquely provided on both sides of the file body (11) and between two adjacent cutting teeth (12). Auxiliary chip removal holes (14) that connect with the receiving cavity (16) are obliquely provided on both sides of the file body (11) and on the side adjacent to the head. Auxiliary limiting components (2) are sealed and inserted at the corresponding auxiliary chip removal holes (14) on both sides of the file body (11). A screw assembly (23) that can be screwed to the file body (11) is inserted inside the auxiliary limiting component (2). A cleaning hole (15) is provided on the upper end face of the file (11) and on the side adjacent to the tail of the file (11) to connect with the receiving cavity (16), and a sealing element (3) is screwed onto the file (11) at the corresponding cleaning hole (15).

2. The medullary canal file for easy cleaning according to claim 1, characterized in that, The screw assembly (23) includes a screw, and an extension rod and a handle ring are sequentially provided on one side of the screw.

3. The medullary canal file for easy cleaning according to claim 1, characterized in that, The auxiliary limiting component (2) includes a sealing plug (21). The sealing plug (21) has a through hole at the extension rod of the screw assembly (23), and an auxiliary groove is provided on one side end face of the sealing plug (21) at the corresponding handle ring. A sealing plug (22) is sealed and inserted into one side end face of the sealing plug (21) at the auxiliary groove.

4. The medullary canal file for easy cleaning according to claim 3, characterized in that, The insertion surface of the sealing plug (22) is fixedly embedded with a magnetic ring, and the inner end face of the auxiliary groove is provided with a magnetic layer with opposite polarity to the magnetic ring.

5. The medullary canal file for easy cleaning according to claim 1, characterized in that, The sealing element (3) is integrally formed from a plug rod (31), a screw part (32), and a handle (33), and the outer diameter of the screw part (32) is larger than the outer diameter of the plug rod (31).

6. The medullary canal file for easy cleaning according to claim 1, characterized in that, The file body (11) has a first threaded groove on both sides at the corresponding screw, which is adapted to the screw, and a second threaded groove on both sides at the corresponding screw part (32), which is adapted to the screw part (32).

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