Conical bone drill for intervertebral foramen endoscopic surgery

Abstract

The utility model relates to the technical field of surgical instruments, and discloses a conical bone drill for intervertebral foramen endoscope surgery, which comprises a bone drill rod and a drill bit, the drill bit consists of a blunt end, a primary spiral cutting edge and a secondary spiral cutting edge, and the blunt end, the primary spiral cutting edge and the secondary spiral cutting edge are integrally processed. And the first-stage spiral cutting edge and the second-stage spiral cutting edge are conical. The design of the bone drill fully considers the pain feeling of a patient in the operation process and the operation efficiency and safety. Due to the conical gradual change structure, the bone drill can finish smooth transition from a small diameter to a large diameter in one-time operation, so that the pain frequency of a patient caused by multiple times of reaming is greatly reduced, and the pain feeling of the patient is reduced. And the operation risk and the time cost caused by replacement of bone drills with different sizes are avoided. According to the conical bone drill for the intervertebral foramen endoscope operation, the pain feeling of a patient is reduced, the operation efficiency is improved, the safety and the reliability of the operation are guaranteed, and a more ideal operation tool is provided for the spine intervertebral foramen endoscope operation.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical instruments, in particular to a conical bone drill for intervertebral foramen endoscopic surgery. Background Technique

[0002] At present, in spinal intervertebral foramen endoscopic surgery, bone drills have been widely recognized and applied by clinicians due to their excellent safety. Bone drills are divided into five levels according to their diameters, namely 4mm, 6mm, 7mm, 8mm, and 9mm. The head ends of these bone drills are all designed as blunt heads to ensure that accidental damage to the nerve root will not occur due to the characteristics of the front end shape when grinding through the bone. The outer circumference of the front end of the bone drill is designed as a spiral cutting edge, and through rotation and progressive grinding, the reaming work from 4mm to 9mm can be effectively completed step by step.

[0003] Intervertebral foramen endoscopic surgery is usually performed under local anesthesia, and the patient remains awake throughout the operation. When the bone drill is working, the patient will feel pain to varying degrees. Especially for those patients who are sensitive to pain or have stenosis, the pain may be more intense. However, since the five-level bone drill requires step-by-step reaming, this process is relatively time-consuming. The patient may need to experience five pain processes, which increases the patient's pain perception to a certain extent. At the same time, the operation of replacing bone drills of different sizes also increases the surgical risk and time cost, and the efficiency is not high.

[0004] Therefore, based on the above technical problems, it is necessary for those skilled in the art to develop a conical bone drill for intervertebral foramen endoscopic surgery. Content of the Utility Model

[0005] The purpose of the utility model is to provide a conical bone drill for intervertebral foramen endoscopic surgery to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A technical scheme of a conical bone drill for intervertebral foramen endoscopic surgery includes a bone drill rod and a drill bit arranged at the front end of the bone drill rod. The drill bit is successively composed of a blunt head, a first-level spiral cutting edge, and a second-level spiral cutting edge from front to back. The blunt head, the first-level spiral cutting edge, and the second-level spiral cutting edge are integrally processed, and the first-level spiral cutting edge and the second-level spiral cutting edge are arranged in a conical shape.

[0008] As a preferred technical scheme, the diameter of the blunt head is 2.5mm and the length is 5mm.

[0009] As a preferred technical scheme, the front end diameter of the first-level spiral cutting edge is 4mm, the length is 10mm, and the outer diameter is arranged in an increasing manner.

[0010] As a preferred technical solution, the diameter of the joint between the secondary spiral cutting edge and the primary spiral cutting edge is 9 mm, the length is 12 mm, and the outer diameter is set to increase.

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

[0012] The present utility model is a conical bone drill for percutaneous endoscopic lumbar discectomy (PELD). The design of the bone drill fully considers the pain experience of patients during the operation, as well as the surgical efficiency and safety. Its tapered structure enables the bone drill to complete a smooth transition from a smaller diameter to a larger diameter in one operation, thus greatly reducing the number of pain episodes caused by multiple reaming for the patient and reducing the patient's pain experience. It avoids the surgical risks and time costs associated with changing bone drills of different sizes. At the same time, the conical primary spiral cutting edge and secondary spiral cutting edge can more effectively cut and grind bone mass, improving the surgical efficiency and shortening the operation time. The conical bone drill for percutaneous endoscopic lumbar discectomy provided by the present utility model not only reduces the patient's pain experience and improves the surgical efficiency, but also ensures the safety and reliability of the operation, providing a more ideal surgical tool for spinal percutaneous endoscopic lumbar discectomy. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of a conical bone drill for percutaneous endoscopic lumbar discectomy;

[0014] Figure 2 It is a schematic diagram of the structure of a conical bone drill for percutaneous endoscopic lumbar discectomy.

[0015] In the reference numerals: 1, bone drill rod; 2, drill bit; 21, blunt head; 22, primary spiral cutting edge; 23, secondary spiral cutting edge. Detailed Embodiments

[0016] The features and exemplary embodiments of various aspects of the present utility model will be described in detail below. In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. For those skilled in the art, the present utility model can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present utility model by showing examples of the present utility model.

[0017] Such as Figure 1 and Figure 2As shown in the figure, the present utility model provides a technical solution for a conical bone drill for intervertebral foramen endoscopic surgery: It includes a bone drill rod 1 and a drill bit 2 arranged at the front end of the bone drill rod 1. The drill bit 2 is successively composed of a blunt head 21, a first-stage spiral cutting edge 22, and a second-stage spiral cutting edge 23 from front to back. Among them, the blunt head 21 is designed as a cone shape, with the smallest tip diameter of 2.5 mm and a length of 5 mm, ensuring that it can easily enter the intervertebral foramen at the initial stage of the surgery without causing accidental damage to the nerve root. As the drill bit penetrates deeper into the bone mass, the first-stage spiral cutting edge 22 begins to play its role. Its front-end diameter is 4 mm and the length is 10 mm, and the outer diameter gradually increases. This enables the bone drill to gradually cut and grind the bone mass during the rotation and advancement process, forming a smooth transition from 4 mm to a larger diameter.

[0018] Immediately afterwards, the second-stage spiral cutting edge 23 continues to expand the aperture. The diameter at the splicing part with the first-stage spiral cutting edge 22 is 9 mm and the length is 12 mm, also adopting the design of increasing outer diameter. This design enables the bone drill to further increase the aperture while continuing to penetrate deeper into the bone mass until the desired surgical effect is achieved. During the whole process, due to the gradient structure of the bone drill, the pain felt by the patient is greatly reduced, and the surgical efficiency is significantly improved.

[0019] During the surgical process, the doctor can control the rotation speed and advancement force of the bone drill rod to achieve precise cutting and grinding of the bone mass. At the same time, due to the integral processing design of the blunt head 21, the first-stage spiral cutting edge 22, and the second-stage spiral cutting edge 23, the structure of the bone drill is more stable and the service life is longer.

[0020] In addition, in order to further improve the safety and reliability of the surgery, the bone drill rod 1 of the present utility model is made of high-strength material to ensure that it will not break or bend during the surgical process. At the same time, the diameter and length of the bone drill rod 1 can also be customized according to the specific situation of the patient to better meet the surgical needs.

[0021] The conical bone drill for intervertebral foramen endoscopic surgery provided by the present utility model fully considers the pain felt by the patient during the surgical process, as well as the surgical efficiency and safety. Its conical gradient structure and conical cutting edge design enable the bone drill to complete a smooth transition from a smaller diameter to a larger diameter in one operation, reducing the number of painful times for the patient and improving the surgical efficiency. At the same time, the high-strength bone drill rod and the customizable size design also further ensure the safety and reliability of the surgery.

[0022] Working principle and usage process of the present utility model: During use, the doctor gradually advances the bone drill into the intervertebral foramen. The blunt tip 21 will first come into contact with the bone mass. Due to its conical design and small diameter, it can easily enter the intervertebral foramen. Subsequently, the first-stage spiral cutting edge 22 starts to play its role. The design with an increasing outer diameter enables the bone drill to gradually cut and grind the bone mass during rotation and advancement, forming a smooth transition from a smaller diameter to a larger diameter.

[0023] When the first-stage spiral cutting edge 22 completes its cutting task, the second-stage spiral cutting edge 23 will then continue to work to further expand the aperture. Similarly, due to the design with an increasing outer diameter of the second-stage spiral cutting edge 23, the bone drill can further increase the aperture while continuing to penetrate deeper into the bone mass until the desired surgical effect is achieved.

[0024] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0026] In the present utility model, unless otherwise clearly specified and defined, the terms "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] According to the embodiments of the present utility model as described above, these embodiments do not describe all the details in detail, nor do they limit the utility model to only the specific embodiments. Obviously, according to the above description, many modifications and variations can be made. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present utility model, so that those skilled in the art can make good use of the present utility model and its modifications based on it. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A conical bone drill for transforaminal endoscopic surgery, characterized in that: The invention comprises a bone drill rod (1) and a drill bit (2) arranged at the front end of the bone drill rod (1); the drill bit (2) is composed of a blunt head (21), a primary spiral cutting edge (22) and a secondary spiral cutting edge (23) from front to back, and the blunt head (21), the primary spiral cutting edge (22) and the secondary spiral cutting edge (23) are integrally processed; the primary spiral cutting edge (22) and the secondary spiral cutting edge (23) are arranged in a conical shape.

2. The tapered bone drill for transforaminal endoscopic surgery according to claim 1, characterized in that: The blunt tip (21) has a diameter of 2.5 mm and a length of 5 mm.

3. The tapered bone drill for transforaminal endoscopic surgery according to claim 1, characterized in that: The first-stage spiral cutting edge (22) has a front end diameter of 4 mm and a length of 10 mm, and an outer diameter that is arranged in an increasing manner.

4. The tapered bone drill for transforaminal endoscopic surgery according to claim 1, characterized in that: The diameter of the joint between the secondary spiral cutting edge (23) and the primary spiral cutting edge (22) is 9 mm, the length is 12 mm, and the outer diameter is arranged in a progressively increasing manner.

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