Positioning guide wire for minimally invasive surgery

Abstract

The utility model relates to a kind of positioning guide guide wire for minimally invasive surgery, comprising: guide wire, it is strip-shaped, and the silver of guide wire, guide wire is inserted into patient place by needle tube;Scale ring is set as several, several scale rings are fixedly set on guide wire at equal intervals, and several scale rings are sequentially arranged along the length direction of guide wire, scale ring surface is coated black, the material of scale ring is platinum-iridium alloy that can be highlighted on medical image picture, the number of scale ring into needle tube is used to identify the depth of guide wire deepening needle tube.The positioning guide guide wire for minimally invasive surgery of the utility model should, for the guide wire operation step completion of positioning guide in minimally invasive surgery, the insertion depth of guide wire can be understood by doctor in operation by the scale ring of highlight setting on guide wire, doctor can also read out insertion depth on image image without image post-processing software, reduce the operation time, reduce the pain of patient.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary equipment technology, and in particular to a positioning and guiding guidewire for minimally invasive surgery. Background Technology

[0002] In most minimally invasive surgeries, surgeons typically use a minimally invasive method to insert a coaxial cannula into the body through the skin. After removing the needle core, a metal wire is inserted into the cannula as a guide wire. Subsequent medical device procedures rely on this guide wire as a guiding path and are performed around it.

[0003] In current procedures, the guidewire is a smooth, silver-colored metal wire. However, when inserted into the coaxial cannula, the surgeon cannot determine the insertion length, which can easily lead to over-insertion of the guidewire, deviating from the patient's target area. This causes subsequent instrument insertion to also deviate, requiring a re-scan of the patient using imaging equipment to determine the insertion distance and make corrections. Furthermore, the length of the inserted guidewire cannot be directly read from the images captured by the imaging equipment; additional image post-processing software is required, making the process cumbersome.

[0004] In addition, when using a coaxial cannula puncture needle inside a patient, the insertion angle needs to be adjusted multiple times, thus creating multiple needle paths. If the doctor does not control the depth of the guidewire insertion but relies solely on feel, it may be over-inserted, requiring continuous adjustments.

[0005] Therefore, there is an urgent need for a guiding structure that allows medical staff to easily observe and record the depth of penetration. Utility Model Content

[0006] Therefore, the technical problem to be solved by this utility model is to overcome the problem that medical personnel cannot know the depth of the guidewire entering the human body in the existing technology.

[0007] To address the aforementioned technical problems, this utility model provides a positioning and guiding guidewire for minimally invasive surgery, comprising: a guidewire, which is elongated and silver in color, inserted into the lesion via a needle tube; and several graduated rings, which are fixedly arranged at equal intervals along the length of the guidewire, with the rings coated in black and made of a platinum-iridium alloy that is highly visible in medical images. The number of graduated rings inserted into the needle tube is used to identify the depth of the guidewire's insertion into the needle tube. This positioning and guiding guidewire for minimally invasive surgery is suitable for use in minimally invasive surgery after a percutaneous needle has established a channel, guiding subsequent instruments. By setting graduated rings on the outer wall of the guidewire as scale markings, it can remind the doctor of the insertion distance, allowing the insertion distance information to be directly obtained in medical images.

[0008] In one embodiment of this utility model, the guide wire is made of 316 stainless steel.

[0009] In one embodiment of this utility model, the guide wire has a circular cross-section, the scale ring has a circular cross-section, and the scale ring is fixedly disposed on the outer surface of the guide wire.

[0010] In one embodiment of this utility model, the spacing between adjacent scale rings is 10mm.

[0011] In one embodiment of this utility model, the width of the next scale ring after every four scale rings is greater than the width of the remaining scale rings.

[0012] In one embodiment of the present invention, the width of the wider scale ring is twice the width of the narrower scale ring.

[0013] In one embodiment of this utility model, the width of the narrower scale ring is 0.6 mm.

[0014] In one embodiment of this utility model, the width of the wider scale ring is 1.2 mm.

[0015] In one embodiment of this utility model, both ends of the guidewire are configured as hemispherical.

[0016] In one embodiment of this utility model, the length of the guide wire is 250 mm.

[0017] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0018] The positioning guide wire for minimally invasive surgery described in this invention allows doctors to know the length of insertion during the insertion process, and the insertion distance can be displayed in medical imaging images. Attached Figure Description

[0019] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the positioning and guiding guidewire used in minimally invasive surgery in a preferred embodiment of this utility model;

[0021] Figure 2 This is a partial structural diagram of the positioning and guiding guidewire used in minimally invasive surgery in a preferred embodiment of the present invention;

[0022] Figure 3 This is an illustration of the positioning and guiding guidewire used in minimally invasive surgery in a preferred embodiment of this utility model.

[0023] Instruction manual diagram markings: guidewire 1, scale ring 2. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0025] Reference Figure 1-2 As shown, the positioning guide wire for minimally invasive surgery of this utility model includes two parts: a guide wire 1 and a graduated ring 2. The guide wire 1 is long and thin, and both ends of the guide wire 1 are hemispherical. The guide wire 1 is silver and is inserted into the lesion through a needle tube. The graduated ring 2 consists of several rings, which are fixedly arranged at equal intervals on the guide wire 1 and are arranged sequentially along the length of the guide wire 1. The surface of the graduated ring 2 is coated with black, and the material of the graduated ring 2 is a platinum-iridium alloy that can be highlighted on medical images. The number of graduated rings 2 inserted into the needle tube is used to identify the depth of the guide wire 1 inserted into the needle tube.

[0026] On the image from the medical imaging equipment, the scale ring 2 is highlighted with minimal artifacts. Doctors can directly count the number of scale rings on the image to confirm the insertion depth of the guidewire 1 without needing to use image post-processing software for measurement. This reduces operational steps, shortens surgical time, and reduces patient discomfort.

[0027] In the above structure, the guidewire 1 has a circular cross-section, and the scale ring 2 has a circular cross-section. The scale ring 2 is fixedly disposed on the outer surface of the guidewire 1. From the external appearance, the scale ring 2 is embedded in the outer wall of the guidewire 1.

[0028] The spacing between adjacent graduated rings 2 is 10mm. Therefore, after the guidewire 1 is inserted into the needle, the graduated ring 2 can be highlighted on the medical image, making it convenient for medical personnel to identify the length of the guidewire 1 inserted.

[0029] Every four graduated rings 2, the width of the next graduated ring 2 is greater than the width of the remaining graduated rings 2. That is, counting from the first graduated ring 2 at one end of the guide wire 1, the 5th graduated ring 2, the 10th graduated ring 2, ..., up to the 5Nth graduated ring 2, where N is a positive integer, the width of the aforementioned graduated ring 2 is wider. Specifically, the width of the wider graduated ring 2 is twice the width of the narrower graduated ring 2. The width of the narrower graduated ring 2 is 0.6 mm. The width of the wider graduated ring 2 is 1.2 mm.

[0030] This invention features a guidewire 1 with a length of 250 mm, making it suitable for most surgical procedures. Furthermore, the guidewire 1 has an overall silver design, which is aesthetically pleasing. The guidewire 1 is made of 316 stainless steel, offering excellent corrosion resistance and durability, allowing it to withstand prolonged use and sterilization.

[0031] The application process of the positioning and guiding guidewire for minimally invasive surgery of this utility model is as follows:

[0032] 1. The doctor uses a coaxial cannula puncture needle to reach the lesion site.

[0033] 2. Remove the needle core and insert guidewire 1 into the needle tube, then insert it into the lesion. The doctor can identify the depth using the graduated rings 2 on guidewire 1. When scanning with imaging equipment, the number of graduated rings 2 can be directly counted on the image to confirm the insertion depth.

[0034] 3. Withdraw the syringe and insert the dilator through the end of guidewire 1 to begin subsequent procedures.

[0035] The above steps complete the entire guidewire manipulation process used for positioning and guidance in minimally invasive surgery. It allows surgeons to understand the depth of guidewire insertion during surgery and to read the insertion depth directly from the imaging images without the need for image post-processing software, thus reducing surgical time and patient discomfort.

[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A positioning and guiding guidewire for minimally invasive surgery, characterized in that, include: A guidewire, which is long and silver in color, is inserted into the lesion through a needle tube; The graduated rings are set in several, and the graduated rings are fixedly arranged on the guide wire at equal intervals, and the graduated rings are arranged sequentially along the length of the guide wire; The surface of the scale ring is coated with black, and the material of the scale ring is a platinum-iridium alloy that can be highlighted on medical images. The number of scale rings entering the needle tube is used to identify the depth to which the guide wire penetrates the needle tube.

2. The positioning and guiding guidewire for minimally invasive surgery according to claim 1, characterized in that: The guide wire is made of 316 stainless steel.

3. The positioning and guiding guidewire for minimally invasive surgery according to claim 1, characterized in that: The guidewire has a circular cross-section, and the scale ring has a circular cross-section. The scale ring is fixedly disposed on the outer surface of the guidewire.

4. The positioning and guiding guidewire for minimally invasive surgery according to claim 1, characterized in that: The spacing between adjacent graduated rings is 10 mm.

5. The positioning and guiding guidewire for minimally invasive surgery according to claim 1, characterized in that: The width of the next scale ring after every four scale rings is greater than the width of the remaining scale rings.

6. The positioning and guiding guidewire for minimally invasive surgery according to claim 5, characterized in that: The wider scale ring is twice the width of the narrower scale ring.

7. The positioning and guiding guidewire for minimally invasive surgery according to claim 6, characterized in that: The narrower scale ring has a width of 0.6 mm.

8. The positioning and guiding guidewire for minimally invasive surgery according to claim 1, characterized in that: The wider scale ring has a width of 1.2 mm.

9. The positioning and guiding guidewire for minimally invasive surgery according to claim 1, characterized in that: Both ends of the guidewire are hemispherical.

10. The positioning and guiding guidewire for minimally invasive surgery according to claim 1, characterized in that: The guidewire is 250 mm long.

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