Osteotome

By designing bone chisels with adjustable shape and size, including drill rods and drill bits, the problem of cumbersome operation in the treatment of bone tumor patients is solved, enabling rapid sampling and efficient operation, and is suitable for 3D printing manufacturing.

CN224166367UActive Publication Date: 2026-04-28JIANGSU PROVINCE HOSPITAL (THE FIRST AFFILIATED HOSPITAL OF NANJING MEDICAL UNIVERSITY)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU PROVINCE HOSPITAL (THE FIRST AFFILIATED HOSPITAL OF NANJING MEDICAL UNIVERSITY)
Filing Date
2025-01-14
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing bone chisels involve numerous steps in the treatment of bone tumor patients, are inconvenient to operate, have low efficiency, and are difficult to use for rapid sampling.

Method used

Design a bone chisel including a drill rod, a threaded head, and a drill bit. The drill rod and the drill bit are movably connected. The drill bit has a threaded interface. The threaded head is used to remove bone blocks. The edge of the drill bit is a sharp cutting section. The structure can be selected in shape and size according to requirements and is suitable for 3D printing manufacturing.

Benefits of technology

It enables rapid cutting of bone blocks to obtain samples, optimizes operation steps, improves efficiency, has a simple structure and low cost, and is suitable for modeling bone defects in large animals.

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Abstract

The utility model provides an osteotome, which belongs to the technical field of medical instruments and comprises an osteotome structure, the osteotome structure comprises a drill rod and a drill bit, the drill rod is movably connected with the drill bit, one end of the drill rod is a handle, the other end of the drill rod is a threaded head of a conical structure, and the threaded head penetrates through an opening on one side of the drill bit. According to the bone chisel, in the process of treating a bone tumor patient, medical staff can rapidly cut bone blocks from bone substances, obtain needed samples and conduct detection, operation steps are optimized, more labor is saved, convenience is achieved, operation efficiency is improved, the size of the bone chisel can be designed according to needs, the bone chisel can be applied to large animal bone defect modeling, the structure is simple, and operation is convenient. 3D printing equipment can be used for manufacturing, and the cost is low.
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Description

Technical Field

[0001] This utility model mainly relates to the technical field of medical devices, specifically a bone chisel. Background Technology

[0002] Medical devices refer to various instruments, equipment, appliances, materials, or other articles used on the human body, either alone or in combination, through physical, chemical, biological, or information technology methods for purposes such as disease diagnosis, prevention, treatment, rehabilitation, monitoring, and life support. These products play a vital role in ensuring human health, disease treatment, and life care.

[0003] A bone chisel is a medical instrument used in surgical procedures, primarily for cutting, removing, or reshaping bone. Bone chisels are typically made of stainless steel, titanium alloy, or other biocompatible materials to ensure durability during surgery and minimize tissue reaction. Since the chisel comes into direct contact with the bone, the smoothness and sharpness of its surface are crucial to the success of the surgery. After use, the bone chisel requires strict sterilization to prevent cross-infection. Currently, in the treatment of bone tumor patients, specimens or samples need to be taken. When using a bone chisel, it is usually necessary to use a hammer to tap and separate bone fragments from the bone tissue before removing them to create a defect area. This process involves many steps, is very inconvenient, and requires precise operating skills to avoid damaging surrounding soft tissues, nerves, and blood vessels, resulting in low efficiency. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing solutions are too simplistic. Specifically, this utility model provides a bone chisel to solve the technical problem mentioned in the background that the current process of taking samples for the treatment of bone tumor patients involves many steps and is inconvenient to operate.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A bone chisel includes a bone chisel structure comprising a drill rod and a drill bit, wherein the drill rod and the drill bit are movably connected, one end of the drill rod is a handle, and the other end of the drill rod is a threaded head with a tapered structure, the threaded head passing through an opening on one side of the drill bit, the threaded head being used to remove bone fragments.

[0007] Furthermore, the drill bit is provided with a threaded interface, and the threaded interface and the drill rod are connected by a thread.

[0008] Furthermore, the edge of the drill bit has a sharp cutting section, which is used to cut bone.

[0009] Furthermore, the drill bit can be rectangular, circular, elliptical, or polygonal in shape, and the shape can be selected according to requirements.

[0010] Furthermore, the length and diameter of the drill rod, the length and width of the handle, and the size of the drill bit can all be selected and designed according to requirements.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention, through its drill rod, threaded head, drill bit, and handle, enables medical personnel to quickly cut bone fragments from the bone during the treatment of bone tumor patients, obtain the necessary samples for testing, optimize the operation steps, save effort and make it more convenient, and improve the efficiency of the operation.

[0013] Furthermore, the size of the bone chisel can be designed according to needs, and it can be used for modeling bone defects in large animals. It has a simple structure, can be manufactured by 3D printing equipment, has low cost, and has certain practical value and market prospects.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the overall structure of this utility model.

[0017] In the diagram: 1. Bone chisel structure; 11. Drill rod; 111. Threaded head; 12. Drill bit; 121. Cutting section; 122. Threaded interface; 13. Handle. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Please refer to the appendix carefully. Figure 1-2 A bone chisel includes a bone chisel structure 1, the bone chisel structure 1 including a drill rod 11 and a drill bit 12, and the drill rod 11 and the drill bit 12 are movably connected. One end of the drill rod 11 is a handle 13, and the other end of the drill rod 11 is a threaded head 111 with a conical structure. The threaded head 111 passes through an opening on one side of the drill bit 12 and is used to remove bone fragments.

[0022] The above structure enables medical personnel to quickly cut bone fragments from the bone during the treatment of bone tumor patients, obtain the necessary samples for testing, optimize the operation steps, save effort and make it more convenient, improve the efficiency of the operation, and has a simple structure, low cost, and certain practical value and market prospects.

[0023] The specific operation is as follows: First, the drill bit 12 in the bone chisel structure 1 is directly inserted into the bone. The sharp cutting part 121 of the drill bit 12 creates a defect area in the bone, obtaining the bone block inside the drill bit 12. At this time, the bone block is separated from the bone defect area (if the drill bit 12 is square, the defect area is square). Then, the medical personnel rotate the drill rod 11 through the handle 13 to drill the threaded head 111 into the bone block. Then, the drill rod 11 drives the bone block to pull out the entire bone block.

[0024] Please refer to the appendix carefully. Figure 2 The drill bit 12 is provided with a threaded interface 122, and the threaded interface 122 and the drill rod 11 are connected by a thread. The threaded connection facilitates the insertion of the drill bit 12 into the bone and the subsequent removal of the drill bit 12.

[0025] The handle 13 provides a point of leverage for medical personnel to hold the drill bit, and the edge of the drill bit 12 has a sharp cutting section 121, which is used to cut bone.

[0026] The drill bit 12 can be rectangular, circular, elliptical, or polygonal in shape, and the specific shape can be selected as needed.

[0027] The bone chisel provided in this solution can be manufactured using 3D printing, so the dimensions of the bone chisel's related structures can be set and selected according to requirements.

[0028] In one specific embodiment, the drill rod 11 has a diameter of 3 mm, and the handle 13 has a length of 50 mm and a width of 10 mm.

[0029] The square structure of drill bit 12 can be configured with dimensions of 5mm x 5mm.

[0030] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A bone chisel, comprising a bone chisel structure (1), characterized in that, The bone chisel structure (1) includes a drill rod (11) and a drill bit (12), and the drill rod (11) and the drill bit (12) are movably connected. One end of the drill rod (11) is a handle (13), and the other end of the drill rod (11) is a threaded head (111) with a conical structure. The threaded head (111) passes through the opening on one side of the drill bit (12) and is used to remove bone fragments.

2. The bone chisel according to claim 1, characterized in that, The drill bit (12) is provided with a threaded interface (122), and the threaded interface (122) and the drill rod (11) are connected by a thread.

3. A bone chisel according to claim 2, characterized in that, The edge of the drill bit (12) has a sharp cutting section (121) for cutting bone.

4. A bone chisel according to claim 3, characterized in that, The drill bit (12) has a rectangular, circular, elliptical, and polygonal structure.