Angle quick-change nail starting driver

Abstract

The application relates to the technical field of medical devices, in particular to a nail inserting and taking starter with an angle. One end of an outer rod of the nail inserting and taking starter is provided with an operation cavity, the operation cavity is connected with one end of a rotatable rotating nail head, the other end of the rotating nail head extends from the outer rod and forms an included angle with the outer rod; one end of an inner rod penetrates into the outer rod, and the other end extends from the outer rod; a driving member is provided with driving teeth on the outer periphery, the driving member is connected with the inner rod and rotates along with the rotation of the inner rod, the outer rod is provided with a driving member movable opening, and the driving teeth extend from the driving member movable opening; the part of the rotating nail head extending from the outer rod is provided with driven teeth, the driven teeth are meshed with the driving teeth and rotate along with the rotation of the driving teeth; when the inner rod is rotated, the driving member rotates along with the inner rod, the driving member drives the driven teeth to rotate, and further drives the rotating nail head with a certain angle with the outer rod to rotate, so that the operation of nail inserting or nail taking is realized, and the operation comfort and the operation efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an angled quick-change screwdriver. Background Technology

[0002] Orthopedic screwdrivers are commonly used tools in orthopedic surgery for installing and removing pedicle screws. The lower end of the screwdriver connects to different screwdriver heads to install or unscrew the pedicle screw cap, facilitating the installation or removal of the screw rod. However, existing screwdrivers have some shortcomings in practical use. For example, most screwdrivers currently have a straight structure, making them inconvenient to operate. Summary of the Invention

[0003] The purpose of this invention is to provide an angled quick-change screwdriver that overcomes the shortcomings of the prior art. The screwdriver head and the screwdriver body are angled together, making it easy to operate and improving efficiency.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] An angled quick-change top screwdriver includes an outer rod, an inner rod, a drive component, and a rotating top screw head.

[0006] One end of the outer rod is provided with an operating cavity, which is connected to one end of a rotatable rotating upper nail head. The other end of the rotating upper nail head extends out of the outer rod and forms an angle with the outer rod.

[0007] One end of the inner rod is inserted into the outer rod, and the other end extends out of the outer rod;

[0008] The outer periphery of the driving component is provided with driving teeth. The driving component is connected to the inner rod and rotates with the rotation of the inner rod. The outer rod is provided with a movable opening for the driving component, and the driving teeth extend out from the movable opening for the driving component.

[0009] The extended portion of the rotating upper nail head is provided with a driven tooth, which meshes with the driving tooth and rotates as the driving tooth rotates;

[0010] When the inner rod is rotated, the driving component rotates accordingly, which in turn drives the driven gear to rotate, thereby causing the rotating upper nail head, which is at a certain angle to the outer rod, to rotate, thus realizing the operation of nailing or removing nails. This setting method, in which the rotating upper nail head and the outer rod are at an angle, improves the comfort and efficiency of operation.

[0011] Furthermore, the rotating upper nail head includes a plunger, a first connecting nail, and a driven gear ring. One end of the plunger is provided with a threaded hole, and the plunger is inserted into the operating cavity of the outer rod. The first connecting nail is inserted into the operating cavity of the outer rod from the other end and connected to the threaded hole of the plunger. A driven gear ring is provided on the outer wall of the plunger outside the outer rod. The driven gear ring includes a bottom wall portion and driven teeth provided on the outer edge of the bottom wall portion. With this structural arrangement, all components of the rotating upper nail head are detachable, and the worn parts can be replaced according to the use of the nail screwdriver. The rotating upper nail head is easy to disassemble and assemble before and after replacement.

[0012] Furthermore, a pad extending toward the bottom wall of the driven gear ring is provided on one end face of the outer rod, and a washer is provided between the pad and the bottom wall, with the driven gear ring surrounding the pad.

[0013] Furthermore, the rotating upper nail head also includes a quick-change connector, which includes a set screw, a spring, a steel ball, and a connector body. One end of the extended outer rod of the plunger is provided with an installation groove, and a set screw is threaded into the installation groove. One end of the spring is connected to the set screw, and the other end is connected to the steel ball. The steel ball partially extends out of the installation groove under the action of the spring. The inner cavity of the connector body is provided with a mating groove, and the side wall of the mating groove is provided with a retaining groove that mates with the steel ball. The mating groove of the connector body is engaged with the end of the plunger and connected by the steel ball for limiting. The operator can quickly replace the connector body as needed. When replacing, the connector body is pulled off forcefully, and a suitable connector body is selected and reinserted onto the plunger.

[0014] Furthermore, the outer rod has a through hole along its axial direction, which communicates with the operating cavity and the movable opening of the drive component; one end of the inner rod that extends into the inner cavity of the outer rod is threadedly connected to a second connecting pin, and the drive component is pressed and fixed between the slot on the outer wall of the inner rod and the second connecting pin. This structural design makes the inner rod and the second connecting pin detachable, which is convenient for replacing the worn structure according to the usage.

[0015] Furthermore, a handle is provided at the end of the inner rod away from the outer rod for easy operation.

[0016] Furthermore, the rotating upper nail head is at a 90° angle to the outer rod.

[0017] Furthermore, the upper and lower surfaces of the end of the outer rod with the operating cavity are both flat, which facilitates operation.

[0018] The beneficial effects of the present invention are as follows: Compared with the prior art, the quick-change screwdriver with angle of the present invention has the following advantages: (1) When the inner rod is rotated, the driving component rotates accordingly, and the driving component drives the driven tooth to rotate, thereby driving the rotating screw head which has a certain angle with the outer rod to rotate, so as to realize the operation of screwing or removing screws. This setting method in which the rotating screw head and the outer rod are at an angle improves the comfort of operation and improves the efficiency of operation; (2) The multiple structures of the entire screwdriver are detachable and replaceable, which is conducive to maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A magnified schematic diagram of a local structure;

[0021] Figure 3 For the present invention Figure 2 Cross-sectional view of the middle structure;

[0022] Among them, 1 is the outer rod, 101 is the operating cavity, 102 is the movable opening of the driving component, 103 is the pad, 104 is the through hole, 2 is the inner rod, 201 is the second connecting pin, 202 is the handle, 3 is the driving component, 4 is the rotating upper pin head, 401 is the plunger, 402 is the first connecting pin, 403 is the driven gear ring, 404 is the washer, 405 is the set screw, 406 is the spring, 407 is the steel ball, and 408 is the connector body. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 1-3 In the illustrated embodiment, a quick-change screwdriver with an angle includes an outer rod 1, an inner rod 2, a driving component 3, and a rotating upper screw head 4, wherein...

[0025] One end of the outer rod 1 is provided with an operating cavity 101, which is connected to one end of a rotatable rotating upper nail head 4. The other end of the rotating upper nail head 4 extends out from the outer rod 1 and forms an angle with the outer rod 1.

[0026] One end of the inner rod 2 is inserted into the outer rod 1, and the other end extends out of the outer rod 1;

[0027] The outer periphery of the driving component 3 is provided with driving teeth. The driving component 3 is connected to the inner rod 2 and rotates with the rotation of the inner rod 2. The outer rod 1 is provided with a driving component movable opening 102, and the driving teeth extend out from the driving component movable opening 102.

[0028] The extended part of the outer rod 1 of the rotating upper nail head 4 is provided with a driven tooth, which meshes with the driving tooth and rotates with the rotation of the driving tooth;

[0029] When the inner rod 2 is rotated, the driving component 3 rotates accordingly. The driving component 3 drives the driven gear to rotate, which in turn drives the rotating upper nail head 4, which is at a certain angle to the outer rod 1, to rotate, thus realizing the operation of nailing or removing nails. This setting method, in which the rotating upper nail head 4 and the outer rod 1 are at an angle, improves the comfort and efficiency of operation.

[0030] In this embodiment, the rotating upper nail head 4 includes a plunger 401, a first connecting nail 402, and a driven gear ring 403. One end of the plunger 401 is provided with a threaded hole. The plunger 401 is inserted into the operating cavity 101 of the outer rod 1. The first connecting nail 402 is inserted into the operating cavity 101 of the outer rod 1 from the other end and is connected to the threaded hole of the plunger 401. The driven gear ring 403 is provided on the outer wall of the plunger 401 outside the outer rod 1. The driven gear ring 403 includes a bottom wall portion and driven teeth provided on the outer edge of the bottom wall portion. With this structural arrangement, all components of the rotating upper nail head 4 are detachable, and the worn parts can be replaced according to the use of the nail screwdriver. The rotating upper nail head 4 is easy to disassemble and assemble before and after replacement.

[0031] In this embodiment, a pad 103 extending toward the bottom wall of the driven gear ring 403 is provided on one end face of the outer rod 1, and a washer 404 is provided between the pad 103 and the bottom wall, and the driven gear is arranged around the pad 103.

[0032] In this embodiment, the rotating upper nail head 4 also includes a quick-change connector. The quick-change connector includes a set screw 405, a spring 406, a steel ball 407, and a connector body 408. One end of the protruding outer rod 1 of the plunger 401 is provided with an installation groove. The set screw 405 is threaded into the installation groove. One end of the spring 406 is connected to the set screw 405, and the other end is connected to the steel ball 407. The steel ball 407 partially protrudes from the installation groove under the action of the spring 406. The inner cavity of the connector body 408 is provided with a mating groove. The side wall of the mating groove is provided with a retaining groove that mates with the steel ball 407. The mating groove of the connector body 408 is engaged with the end of the plunger 401 and is limited by the steel ball 407. The operator can quickly replace the connector body 408 as needed. When replacing, the connector body 408 is pulled off forcefully, and a suitable connector body 408 is selected and reinserted onto the plunger 401.

[0033] In this embodiment, the outer rod 1 has a through hole 104 along its axial direction, which communicates with the operating cavity 101 and the movable opening 102 of the driving component; the inner rod 2 has a second connecting pin 201 threadedly connected to one end of its extension into the inner cavity of the outer rod 1, and the driving component 3 is pressed and fixed between the slot on the outer wall of the inner rod 2 and the second connecting pin 201. This structural design makes the inner rod 2 and the second connecting pin detachable, which is convenient for replacing the worn structure according to the usage.

[0034] In this embodiment, a handle 202 is provided at the end of the inner rod 2 that is away from the outer rod 1 for easy operation.

[0035] In this embodiment, the rotating upper nail head 4 is at a 90° angle to the outer rod 1.

[0036] In this embodiment, the upper and lower end surfaces of the end of the outer rod 1 with the operating cavity 101 are both planar, which facilitates operation.

[0037] The above-described specific embodiments are merely specific examples of the present invention. The patent protection scope of the present invention includes, but is not limited to, the product form and style of the above-described specific embodiments. Any appropriate changes or modifications made by a person skilled in the art that conform to the claims of the present invention should fall within the patent protection scope of the present invention.

Claims

1. A quick-change nail screwdriver with an angle, characterized in that: Includes an outer rod, an inner rod, a driving component, and a rotating upper nail head, among which, One end of the outer rod is provided with an operating cavity, which is connected to one end of a rotatable rotating upper nail head. The other end of the rotating upper nail head extends out of the outer rod and forms an angle with the outer rod. One end of the inner rod is inserted into the outer rod, and the other end extends out of the outer rod; The outer periphery of the driving component is provided with driving teeth. The driving component is connected to the inner rod and rotates with the rotation of the inner rod. The outer rod is provided with a movable opening for the driving component, and the driving teeth extend out from the movable opening for the driving component. The extended portion of the rotating upper nail head is provided with a driven tooth, which meshes with the driving tooth and rotates as the driving tooth rotates; The rotating upper nail head includes a plunger, a first connecting nail, and a driven gear ring. One end of the plunger is provided with a threaded hole. The plunger is inserted into the operating cavity of the outer rod. The first connecting nail is inserted into the operating cavity of the outer rod from the other end and connected to the threaded hole of the plunger. The driven gear ring is provided on the outer wall of the plunger outside the outer rod. The driven gear ring includes a bottom wall portion and driven teeth provided on the outer edge of the bottom wall portion. The outer rod has a through hole along its axial direction, which communicates with the operating cavity and the movable opening of the drive component. One end of the inner rod that extends into the inner cavity of the outer rod is threadedly connected to a second connecting pin, and the driving component is pressed and fixed between the slot on the outer wall of the inner rod and the second connecting pin.

2. The angled quick-change nail screwdriver according to claim 1, characterized in that: A pad extending toward the bottom wall of the driven gear ring is provided on one end face of the outer rod, and a washer is provided between the pad and the bottom wall, with the driven gear ring surrounding the pad.

3. The angled quick-change screwdriver according to claim 1, characterized in that: The rotating upper nail head also includes a quick-change connector, which includes a set screw, a spring, a steel ball, and a connector body. One end of the extended outer rod of the plunger is provided with an installation groove, and a set screw is threaded into the installation groove. One end of the spring is connected to the set screw, and the other end is connected to the steel ball. The steel ball partially extends out of the installation groove under the action of the spring. The inner cavity of the connector body is provided with a mating groove, and the side wall of the mating groove is provided with a retaining groove that mates with the steel ball. The mating groove of the connector body is engaged with the end of the plunger and connected by the limiting connection of the steel ball.

4. The angled quick-change screwdriver according to claim 1, characterized in that: A handle is provided at the end of the inner rod that is away from the outer rod.

5. The angled quick-change screwdriver according to claim 1, characterized in that: The rotating upper nail head is at a 90° angle to the outer rod.

6. The angled quick-change nail screwdriver according to claim 1, characterized in that: The upper and lower surfaces of the end of the outer rod where the operating cavity is located are both flat.

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