Kirschner wire guider

Abstract

The utility model provides a kirschner wire guider, which relates to the technical field of medical instruments and comprises a guider main body, and a guider fixing seat is arranged at one end of the guider main body. By means of the modular design, the guider body can be rapidly replaced with different diameters and length specifications, the requirements of different patients and operation scenes are met, the clamping design of the ball screws enables installation and detachment to be simple and efficient, the flexibility and convenience of operation preparation are greatly improved, and the operation efficiency is improved. The design of the inner hole of the guider body ensures that the kirschner wire is always inserted into the bone along a fixed path, and by combining the groove direction of the grooved screw and the center position alignment structure of the guider body, the accuracy of operation guiding can be remarkably improved, the risk of operation failure caused by deviation is reduced, and the operation safety is improved. The structural design of the bolt and the guide ring provides multiple supports for the guider body, it is ensured that in the using process, the guider body cannot be loosened or deviated due to the influence of external force, and the stability and reliability of the device are further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially relates to a kirschner wire guider. BACKGROUND

[0002] Kirschner needle is a kind of fixing instrument commonly used in orthopedics, its specification is generally diameter between 0.5-4mm, length is between 0-400mm. It is used for fixing short fracture or avulsion fracture and other fractures with little stress, is also often used in the fixation of temporary fracture block in orthopedic surgery, and is often used in cooperation with external fixation support, especially ring type external fixation support.

[0003] The cooperation of kirschner needle and ring type external fixation support generally needs to drive kirschner needle from the fixed screw of one end of ring, passes through the skeleton to the fixed screw of the other end of ring, is installed on electric drill from one end, then electric drill is started, because the relative distance of the outer end of ring to the skeleton is relatively large, and kirschner needle is relatively thin, the farther the rotation deflection is from the fixed end of ring, the larger the deflection will be, and often cannot be driven to the predetermined position, when driving into inaccurate position, kirschner needle needs to be pulled out and driven in again, and kirschner needle is often driven in multiple times in one operation, which invisibly aggravates secondary injury, further damages blood supply, prolongs operation time, and further influences treatment effect.

[0004] It is difficult to drive kirschner needle accurately, kirschner needle needs to be driven into fixed skeleton, but it is difficult to drive kirschner needle accurately at predetermined angle and position, especially for irregular bone with multiple joint surfaces such as carpal scaphoid, when the driving angle and position are inaccurate, kirschner needle needs to be pulled out and driven in again, and kirschner needle is often driven in multiple times in one operation, which invisibly aggravates secondary injury, further damages blood supply, prolongs operation time, and further influences treatment effect. Therefore, we provide a kirschner needle guider. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in prior art, and provides a kirschner needle guider.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a kirschner needle guider, comprising: guider main body, one end of the guider main body is provided with guider fixed seat, wave bead screw is arranged between the guider main body and guider fixed seat, bolt is arranged in the guider fixed seat, nut is arranged on the outer surface of the bolt, and guide ring is arranged between the nut and bolt.

[0007] As a preferred implementation form, the outer surface of one end of the guider main body is nested in the guider fixed seat.

[0008] As a preferred implementation form, the outer surface of the wave bead screw is fixed between the guider main body and guider fixed seat in threaded rotation mode.

[0009] As a preferred embodiment, the outer surface of the bolt penetrates the guide ring.

[0010] As a preferred embodiment, the outer surface of the bolt is nested in the guide holder.

[0011] As a preferred embodiment, the inner surface of the nut fixes the guide ring on the bolt through threaded rotation.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that:

[0013] The utility model discloses a modular design, and the guide body can be quickly replaced for different diameter and length specifications, meets the demand of different patients and surgical scene, and the clamping position design of wave bead screw makes simple and efficient installation and removal, and the flexibility and convenience of surgical preparation are greatly improved, the inner hole design of the guide body guarantees that the kirsch needle is always inserted along the fixed path into the bone, the groove direction of the slotted screw and the central position alignment structure of the guide body are combined, the precision of surgical guidance can be significantly improved, the risk of surgical failure caused by deviation is reduced, the structural design of the bolt and the guide ring provides multiple supports for the guide body, ensures that the guide body does not loosen or deviate due to external force in the use process, and the stability and reliability of the device are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 A structure schematic view of the kirsch needle guide of the utility model is provided.

[0015] Fig. 2 A structure exploded view of the kirsch needle guide of the utility model is provided.

[0016] Fig. 3 A structure installation schematic view of the kirsch needle guide of the utility model is provided.

[0017] LEGEND:

[0018] 1, guide body, 2, guide holder, 3, wave bead screw, 4, bolt, 5, nut, 6, guide ring. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the overall concept of the utility model, the following will be combined with the description of the drawings in the form of examples to be described in detail.

[0020] It should be noted that in the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other ways different from those described herein, and the scope of the present application is not limited to the specific embodiments described in the following description.

[0021] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0022] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. However, it is noted that direct connection means that the connection between the two main bodies does not form a connection relationship through an excessive structure, but is connected to form a whole only through the connection structure. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0024] Example 1

[0025] As Figs. 1-3As shown, the utility model provides a technical scheme: a Kirschner wire guider, include: guider main part 1, guider main part 1 one end is provided with guider fixed base 2, guider main part 1 and guider fixed base 2 between being provided with wave pearl screw 3, guider fixed base 2 in being provided with bolt 4, the outer surface of bolt 4 is provided with nut 5, nut 5 and bolt 4 between being provided with guide ring 6;

[0026] The outer surface of one end of guider main part 1 is nested in guider fixed base 2;

[0027] The outer surface of wave pearl screw 3 is fixed between guider main part 1 and guider fixed base 2 by screw thread rotation mode;

[0028] The outer surface of bolt 4 is inserted through guide ring 6;

[0029] The outer surface of bolt 4 is nested in guider fixed base 2;

[0030] The inner surface of nut 5 is fixed with guide ring 6 on bolt 4 by screw thread rotation mode.

[0031] In the embodiment, guider main part 1 and guider fixed base 2 are composed, guider main part 1 is provided with an inner hole, the inner hole is matched with the diameter specification of Kirschner wire, guider fixed base 2 is connected with guider main part 1, guider fixed base 2 can be fixed on a ring or a fitting connected with the ring, the design is shown as being sleeved on the outer hexagon of slotted screw fixed on the ring, the groove direction of Kirschner wire and slotted screw is guaranteed to be consistent with the center, and Kirschner wire enters the guider main part 1 and enters the bone along the groove of slotted screw during operation.

[0032] In addition, the diameter specification of Kirschner wire selected in actual operation and the thickness of patient's leg need to select different length specifications, so guider main part 1 has different diameter and length specifications, guider main part 1 and guider fixed base 2 can be quickly replaced, guider main part 1 end face is provided with a hole, guider can be directly inserted, guider main part 1 side is provided with a hole, wave pearl screw 3 is installed in guider fixed base 2, after guider main part 1 is inserted into the end face hole of guider fixed base 2, is rotated to the side hole of guider main part 1 aligns wave pearl screw 3, and guider main part 1 can be clamped and not fall off, when other specifications need to be replaced, rotate guider main part 1 to make the steel ball on wave pearl screw 3 retract, and guider main part 1 can be pulled out.

[0033] Working principle:

[0034] For example, Figs. 1-3As shown, the guide body 1 is provided with an inner hole matched with the diameter of the Kirschner wire, ensuring the accurate insertion path of the Kirschner wire. The guide body 1 is quickly disassembled with the guide fixed seat 2 through the wave bead screw 3, and the wave bead screw 3 is fixed by clamping the side hole of the guide body 1, which is simple, efficient and reliable. After the guide body 1 is inserted into the end hole of the guide fixed seat 2, the clamping and fixing can be completed by rotating and aligning, and when replacing different specifications, only the rotation unlocking is needed to disassemble. The guide fixed seat 2 is aligned with the groove direction and center position of the slotted screw, ensuring that the Kirschner wire smoothly enters the bone along the fixed direction, thereby improving the guiding accuracy and reducing the error. In addition, the guide ring 6 is fixed in the fixed seat by the nut 5 and the bolt 4, which provides additional support and stability for the guide, avoiding deviation and loosening during use.

[0035] The modular design of the device provides a variety of specifications of the guide body 1, which can be quickly replaced according to the diameter of the Kirschner wire or the needs of the patient, and is suitable for different surgical scenes, and has high universality and practicality. The split design of the guide body 1 and the fixed seat and the quick replacement feature make it more adaptable, meeting the needs of Kirschner wires of different diameters and lengths. In addition, the bolt 4 is nested and fixed in the guide fixed seat 2, and the combination of the bolt 4 and the guide ring 6 further improves the structural stability. Through accurate guiding and simple disassembly and assembly, the guide effectively improves the surgical efficiency and safety, reduces the risk caused by deviation or loosening, and fully embodies the efficiency and reliability of the device.

[0036] Those skilled in the art will understand that the above discussion of any embodiment is only exemplary and is not intended to limit the scope of the present application (including claims) to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in detail.

[0037] The present application is intended to cover all such alternatives, modifications and variations falling within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A Kirschner wire guide, characterized in that, The utility model relates to a guiding device for the use of the guiding device in the field of the medical treatment, and the guiding device comprises: The utility model discloses a guiding device for the use of the guiding device in the field of the medical treatment, and the guiding device comprises:

2. The K-wire guide of claim 1, wherein: The outer surface of the one end of the guiding device (1) is nested in the guiding device fixing seat (2).

3. The K-wire guide of claim 2, wherein: The outer surface of the wave bead screw (3) is fixed between the guiding device body (1) and the guiding device fixing seat (2) through the screw thread rotation mode.

4. The K-wire guide of claim 1, wherein: The outer surface of the bolt (4) is inserted through the guide ring (6).

5. The K-wire guide of claim 1, wherein: The outer surface of the bolt (4) is nested in the guiding device fixing seat (2).

6. The K-wire guide of claim 1, wherein: The inner surface of the nut (5) fixes the guide ring (6) on the bolt (4) through the screw thread rotation mode.

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