A vertebral hand drill facilitating a rotary drilling operation

Abstract

The utility model relates to medical instrument technical field especially, more particularly to a vertebra hand drill convenient to carry out rotary drilling operation, it includes installation post, pull -out type rotary handle, drill bit and locking cap, the upper end of installation post is installed pull -out type rotary handle, the lower extreme of installation post passes through locking cap and can be installed detachable drill bit, pull -out type rotary handle includes sleeve, telescopic hollow cylinder rod and pull ring, the outside of sleeve is connected with the upper end of installation post perpendicularly, one end of telescopic hollow cylinder rod is connected with sleeve, the other end of telescopic hollow cylinder rod is installed with pull ring, the utility model discloses pull -out type rotary handle, telescopic hollow cylinder rod can be stored in sleeve after completely folding, both guarantee that rotary handle has enough length when operating, and it is convenient to store and carry.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a vertebral hand drill that is easy to perform rotary drilling operations. Background Technology

[0002] The vertebral drill is a sophisticated medical tool whose core function is to provide precise and controllable bone tissue manipulation capabilities for spinal surgery. In spinal fusion or vertebroplasty, surgeons use the drill's rotating cutting motion to create millimeter-precision bone tunnels in critical areas such as the pedicles and vertebral bodies, creating ideal pathways for screw implantation or bone cement injection. Its manual operation provides the surgeon with direct tactile feedback, allowing real-time monitoring of bone density changes and effectively avoiding damage to neurovascular structures. Compared to electric instruments, the low-speed rotation of the drill reduces the risk of thermal damage, protects bone cell activity, and lowers the probability of cancellous bone compression and collapse.

[0003] Existing vertebral hand drills have shortcomings in use. First, their handles are too short, making rotary drilling inconvenient. A longer handle would affect storage and portability. Second, the drill rod is difficult to disassemble and replace. Therefore, the inventors aim to optimize and improve existing vertebral hand drills. Summary of the Invention

[0004] The purpose of this invention is to overcome the aforementioned problems in traditional technology and provide a vertebral hand drill that is easy to perform rotary drilling operations.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution: A vertebral hand drill for easy rotary drilling includes a mounting post, a pull-out rotary handle, a drill bit, and a locking cap. The upper end of the mounting post is equipped with the pull-out rotary handle, and the lower end of the mounting post is equipped with a detachable drill bit via the locking cap. The pull-out rotary handle includes a sleeve, a retractable hollow cylindrical rod, and a pull ring. The outer side of the sleeve is perpendicularly connected to the upper end of the mounting post. One end of the retractable hollow cylindrical rod is connected to the sleeve, and the other end of the retractable hollow cylindrical rod is equipped with a pull ring.

[0006] Furthermore, in the aforementioned vertebral hand drill that facilitates rotary drilling operations, the retractable hollow cylindrical rod can be fully folded and stored in the sleeve.

[0007] Furthermore, in the aforementioned vertebral hand drill that facilitates rotary drilling operations, the pull ring is provided with a finger pull hole for easy finger passage, and the outer edge of the pull ring is rounded.

[0008] Furthermore, in the aforementioned vertebral hand drill that facilitates rotary drilling operations, the drill bit includes a drill rod, the upper part of which is symmetrically provided with protruding keys, the bottom end of which is provided with a double-sided cutting edge, the lower part of which has a cavity inside, and the two sides of the double-sided cutting edge are provided with chip guide holes communicating with the cavity.

[0009] Furthermore, in the aforementioned vertebral hand drill that facilitates rotary drilling operations, the mounting post includes a column body, the bottom end of which is provided with an inwardly opening insertion groove that mates with the drill bit rod, the inner wall of which is provided with a keyway that mates with a convex key, and the outer side of the bottom end of the column body is provided with an external threaded portion.

[0010] Furthermore, in the aforementioned vertebral hand drill that facilitates rotary drilling operations, the locking cap includes a cap body, the upper end of which has an inwardly formed internal thread groove that mates with the external threaded portion, and the lower end of which has an inwardly formed through hole that facilitates the passage of the drill bit rod.

[0011] The beneficial effects of this utility model are: 1. Reasonable Handle Design: The pull-out handle solves the problems of short handles in existing vertebral hand drills, which are inconvenient to operate, while longer handles affect storage and portability. The retractable hollow cylindrical rod can be fully folded and stored in the sleeve, ensuring sufficient handle length during operation while facilitating storage and transport. The pull ring has finger holes for easy finger access, and the outer edge of the pull ring is rounded for ease of operation and to reduce finger injury.

[0012] 2. Easy to disassemble and replace drill bits: The design of the mounting post and locking cap allows for the disassembly and installation of drill bits, making it convenient to replace different types of drill bits according to different surgical needs.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a diagram showing the stretched state of the pull-out handle in this utility model; Figure 3 This is a diagram showing the retractable handle in its stored state in this utility model. Figure 4 This is a schematic diagram of the drill bit structure in this utility model; Figure 5 This is a schematic diagram of the locking cap in this utility model; The attached diagram lists the components represented by each number as follows: 1-Mounting post, 101-Post body, 102-Intercepting groove, 103-Keyway, 104-External threaded part; 2-Pull-out handle, 201-Sleeve, 202-Retractable hollow cylindrical rod, 203-Pull ring; 3-Drill bit, 301-Drill bit rod, 302-Protruding key, 303-Double-sided cutting edge, 304-Cavity, 305-Chip guide hole; 4-Locking cap, 401-Cap body, 402-Internal thread groove, 403-Through hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-5 As shown, this embodiment is a vertebral hand drill that facilitates rotary drilling operations, including a mounting post 1, a pull-out rotary handle 2, a drill bit 3, and a locking cap 4. The upper end of the mounting post 1 is equipped with the pull-out rotary handle 2, and the lower end of the mounting post 1 is equipped with a detachable drill bit 3 via the locking cap 4.

[0018] In this embodiment, the pull-out handle 2 includes a sleeve 201, a telescopic hollow cylindrical rod 202, and a pull ring 203. The outer side of the sleeve 201 is vertically connected to the upper end of the mounting post 1. One end of the telescopic hollow cylindrical rod 202 is connected to the sleeve 201, and the other end of the telescopic hollow cylindrical rod 202 is equipped with a pull ring 203.

[0019] In this embodiment, the retractable hollow cylindrical rod 202 can be stored in the sleeve 201 after being fully folded.

[0020] In this embodiment, the pull ring 203 is provided with a finger pull hole to facilitate the passage of fingers, and the outer edge of the pull ring 203 is rounded.

[0021] In this embodiment, the drill bit 3 includes a drill rod 301. The upper part of the drill rod 301 is symmetrically provided with protruding keys 302. The bottom end of the drill rod 301 is provided with a double-sided cutting edge 303. The lower part of the drill rod 301 has a cavity 304 inside. The two sides of the double-sided cutting edge 303 are provided with chip guide holes 305 that communicate with the cavity.

[0022] In this embodiment, the mounting post 1 includes a post body 101. The bottom end of the post body 101 is provided with an insertion groove 102 that mates with the drill rod 301. The inner wall of the insertion groove 102 is provided with a keyway 103 that mates with the protruding key 302. The outer side of the bottom end of the post body 101 is provided with an external threaded portion 104.

[0023] In this embodiment, the locking cap 4 includes a cap body 401. The upper end of the cap body 401 is provided with an internal thread groove 402 that mates with the external thread portion 104. The lower end of the cap body 401 is provided with a through hole 403 that facilitates the passage of the drill rod 301.

[0024] The working principle of this embodiment is as follows: Rotary handle operation: When rotary drilling is required, pull the retractable hollow cylindrical rod 202 out of the sleeve 201. The operator inserts their fingers through the finger pull hole of the pull ring 203 and rotates the pull ring 203 to rotate the retractable hollow cylindrical rod 202, which in turn rotates the sleeve 201 and the mounting post 1, providing power for the rotary drilling operation. After the operation is completed, the retractable hollow cylindrical rod 202 is folded and stored back into the sleeve 201 for easy storage and carrying.

[0025] Drill bit installation and replacement: When installing drill bit 3, align the protruding key 302 on the upper part of the drill bit rod 301 with the keyway 103 on the inner wall of the insertion groove 102 at the bottom end of the mounting post 1 body 101. Insert the drill bit rod 301 into the insertion groove 102. Then, tighten the cap 401 of the locking cap 4 through the internal thread groove 402 to the external thread 104 on the outer side of the bottom end of the mounting post 1 body 101, so that the drill bit rod 301 passes through the through hole 403 at the lower end of the cap 401, thereby achieving the installation and fixation of drill bit 3. When it is necessary to replace drill bit 3, simply unscrew the locking cap 4, remove the original drill bit 3, and then install the new drill bit 3 according to the above steps.

[0026] Rotary drilling process: During rotary drilling, the mounting post 1 drives the drill bit 3 to rotate. The double-sided cutting edge 303 of the drill bit 3 cuts the bone tissue. The bone chips generated by cutting enter the cavity 304 inside the lower part of the drill bit rod 301 through the chip guide hole 305 for temporary storage, ensuring the smooth progress of the rotary drilling process.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A vertebral hand drill that facilitates rotary drilling operations, characterized in that, The device includes a mounting post, a pull-out handle, a drill bit, and a locking cap. The upper end of the mounting post is equipped with the pull-out handle, and the lower end of the mounting post is equipped with a detachable drill bit via the locking cap. The pull-out handle includes a sleeve, a retractable hollow cylindrical rod, and a pull ring. The outer side of the sleeve is perpendicularly connected to the upper end of the mounting post. One end of the retractable hollow cylindrical rod is connected to the sleeve, and the other end of the retractable hollow cylindrical rod is equipped with a pull ring.

2. The vertebral hand drill according to claim 1, characterized in that, The retractable hollow cylindrical rod can be stored in the sleeve after being fully folded.

3. A vertebral hand drill for easy rotary drilling operation according to claim 2, characterized in that, The pull ring has a finger hole for easy finger insertion, and the outer edge of the pull ring is rounded.

4. A vertebral hand drill for easy rotary drilling operation according to claim 3, characterized in that, The drill bit includes a drill rod, the upper part of which is symmetrically provided with protruding keys, the bottom end of which is provided with a double-sided cutting edge, the lower part of which is provided with a cavity, and the two sides of the double-sided cutting edge are provided with chip guide holes communicating with the cavity.

5. A vertebral hand drill according to claim 4, characterized in that, The mounting post includes a post body, the bottom end of which has an inwardly formed insertion groove for engaging with the drill bit rod, the inner wall of which has a keyway for engaging with a convex key, and the outer side of the bottom end of the post body has an external threaded portion.

6. A vertebral hand drill according to claim 5, characterized in that, The locking cap includes a cap body, the upper end of which has an inwardly formed internal thread groove that mates with the external threaded portion, and the lower end of which has an inwardly formed through hole to facilitate the passage of the drill bit rod.

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