CT-guided puncture positioning structure

Abstract

The utility model relates to the field of medical instruments, in particular to a CT (computed tomography)-guided puncture positioning structure which comprises a positioning sticker and a positioning marking strip. The positioning mark strips are arranged on the positioning sticker, the positioning mark strips comprise a plurality of transverse mark strips which are transversely arranged and a plurality of longitudinal mark strips which are longitudinally arranged, the transverse mark strips and the longitudinal mark strips form a plurality of square areas on the positioning sticker, and a plurality of positioning holes are formed in the positioning sticker in each square area. The criss-cross positioning marking strips are adopted to divide the positioning patch into a plurality of square areas, so that the focus positioning range area is quickly narrowed, and the positioning patch is matched with the positioning holes in the positioning patch, so that the effect of quickly and accurately determining positioning points under the guidance of CT (computed tomography) can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and in particular to a puncture positioning structure under CT guidance. Background Art

[0002] CT-guided puncture technology uses CT images to locate the lesion and understand the surrounding tissues, thereby avoiding vital organs, providing precise needle insertion angles and depths, and allowing for continuous adjustments under monitoring to ensure precise puncture. The key to this technology is determining the puncture point and path.

[0003] Currently, most CT positioning structures used in clinical practice are homemade by doctors. The positioning materials used are not suitable for fitting the human body and cannot fit tightly, resulting in positioning deviations. Traditionally, doctors use iron wire to fix the skin to locate the distance between the lesions. The traditional operation requires cumbersome pre-operation work, the iron wire has poor stability when fixed on the skin, and there is often a risk of displacement. In addition, when the distance between the iron wire and the skin lesion is too large, the distance measurement under the CT image has a large error. When drawing positioning points with the iron wire as the reference point, the large distance and the uneven surface of the patient's skin affect the positioning of the puncture point of the lesion, resulting in large errors, thus affecting the efficiency and effectiveness of interventional puncture of the lesion. Summary of the Invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide a CT-guided puncture positioning structure that can quickly and accurately determine the puncture positioning point.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The utility model provides a CT-guided puncture positioning structure, comprising: a positioning sticker and a positioning identification strip; the positioning identification strip is arranged on the positioning sticker, and the positioning identification strip comprises a plurality of transverse identification strips arranged transversely and a longitudinal identification strip arranged longitudinally, wherein the plurality of transverse identification strips and the longitudinal identification strips form a plurality of square areas on the positioning sticker, and a plurality of positioning holes are opened on the positioning sticker in each square area.

[0007] Furthermore, identification letters are provided on the positioning sticker at positions corresponding to the horizontal identification strips, and identification numbers are provided on the positioning sticker at positions corresponding to the vertical identification strips.

[0008] Furthermore, an adhesive layer is coated on the bottom of the positioning sticker, and an isolation oil paper is pasted and covered on the adhesive layer.

[0009] Furthermore, the length and width of the positioning sticker are 200-300mm*100-200mm, and the thickness is 0.5-1mm.

[0010] Furthermore, the positioning sticker is made of a flexible silicone film material, and the positioning identification strip is made of a flexible latex material.

[0011] Furthermore, the protrusion height of the positioning identification strip is 0.5-1.2 mm.

[0012] Furthermore, the center line spacing between adjacent transverse identification strips is 18-22 mm, the center line spacing between adjacent longitudinal identification strips is 18-22 mm, and the width of a single positioning identification strip is 0.8-1.2 mm.

[0013] Furthermore, the width of the transverse identification strip is slightly wider than the longitudinal identification strip; the length and width of each square area are both 18-22 mm.

[0014] Furthermore, the positioning sticker is provided with 10-14 square areas in the horizontal direction and 5-9 square areas in the vertical direction.

[0015] Furthermore, each square area is provided with 3-5 positioning holes in the horizontal and vertical directions, the center distance between each positioning hole is about 3-5 mm, and the inner diameter of each positioning hole is 1-2 mm.

[0016] In the CT-guided puncture positioning structure of the present invention, several horizontal identification strips and vertical identification strips form several square areas on the positioning sticker, and several positioning holes are opened on the positioning sticker in each square area. The present invention adopts criss-cross positioning identification strips to divide the positioning sticker into multiple square areas, so as to quickly narrow the range of lesion positioning, and cooperate with the positioning holes on the positioning sticker to achieve the effect of quickly and accurately determining the positioning point under CT guidance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 This is a front view of the CT-guided puncture positioning structure of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the CT-guided puncture positioning structure of the utility model;

[0020] Figure 3 This is a structural diagram of the positioning identification strip in the CT-guided puncture positioning structure of the utility model;

[0021] Figure 4 This is a disconnected diagram of the CT-guided puncture positioning structure of the present invention;

[0022] The accompanying drawings are marked as follows: 1. Positioning sticker; 2. Positioning identification strip; 3. Horizontal identification strip; 4. Vertical identification strip; 5. Positioning hole; 6. Identification letter; 7. Identification number. DETAILED DESCRIPTION

[0023] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0024] like Figures 1 to 4 As shown, a CT-guided puncture positioning structure of an embodiment of the present invention includes: a positioning sticker 1 and a positioning identification strip 2; the positioning identification strip 2 is arranged on the positioning sticker 1, and the positioning identification strip 2 includes a plurality of transverse identification strips 3 arranged transversely and a longitudinal identification strip 4 arranged longitudinally, and the plurality of transverse identification strips 3 and the longitudinal identification strips 4 form a plurality of square areas on the positioning sticker 1, and a plurality of positioning holes 5 are opened on the positioning sticker 1 in each square area.

[0025] In the CT-guided puncture positioning structure of the present invention, several horizontal identification strips 3 and longitudinal identification strips 4 form several square areas on the positioning sticker 1, and several positioning holes 5 are opened on the positioning sticker 1 in each square area. The present invention adopts criss-cross positioning identification strips 2 to divide the positioning sticker 1 into multiple square areas, so as to quickly narrow the range of lesion positioning, and cooperate with the positioning holes 5 on the positioning sticker 1 to achieve the effect of quickly and accurately determining the positioning point under CT guidance.

[0026] Among them, identification letters 6 are set at the positions corresponding to the horizontal identification strips 3 on the positioning sticker 1, and identification numbers 7 are set at the positions corresponding to the vertical identification strips 4 on the positioning sticker 1.

[0027] The bottom of the positioning sticker 1 is coated with an adhesive layer, and the adhesive layer is covered with isolation oil paper.

[0028] Among them, the length and width of the positioning sticker 1 are 200-300mm*100-200mm, and the thickness is 0.5-1mm.

[0029] Among them, the positioning sticker 1 is made of flexible silicone film material, and the positioning identification strip 2 is made of flexible latex material.

[0030] The protrusion height of the positioning identification strip 2 is 0.5-1.2 mm.

[0031] The center line spacing between adjacent transverse identification strips 3 is 18-22 mm, the center line spacing between adjacent longitudinal identification strips 4 is 18-22 mm, and the width of a single positioning identification strip 2 is 0.8-1.2 mm.

[0032] The width of the transverse identification strip 3 is slightly wider than that of the longitudinal identification strip 4; the length and width of each square area are both 18-22 mm.

[0033] The positioning sticker 1 is provided with 10-14 square areas in the horizontal direction and 5-9 square areas in the vertical direction.

[0034] There are 3-5 positioning holes 5 in each square area in both the horizontal and vertical directions. The center distance between each positioning hole 5 is about 3-5 mm, and the inner diameter of each positioning hole 5 is 1-2 mm.

[0035] Specifically, this structure is mainly used for CT-guided interventional treatment positioning. This structure is convenient for determining the location of the lesion, and can determine the puncture point, needle insertion depth and angle.

[0036] This device primarily consists of a positioning sticker 1 and a positioning marker strip 2. The sticker 1 is made of a flexible silicone membrane in the form of a sheet. An adhesive layer is applied to the underside of the sticker, and a barrier paper is applied over the adhesive layer. When the sticker 1 is applied to the patient's skin at the puncture site, the barrier paper is removed, and the sticker 1 is secured to the patient's skin via the adhesive layer underneath.

[0037] The positioning sticker 1 of this structure is square, and the length and width dimensions of the positioning sticker 1 are set to 250mm*150mm, and the thickness is set to between 0.5-1mm. A raised criss-cross positioning identification strip 2 is fixed on the positioning sticker 1. The positioning identification strip 2 is made of flexible latex material, and the raised height is between 0.5-1.2mm. Among the criss-cross positioning identification strips 2, the horizontal ones are horizontal identification strips 3, and the vertical ones are vertical identification strips 4. The center line spacing of adjacent horizontal identification strips 3 is 20mm, and the center line spacing of adjacent vertical identification strips 4 is also 20mm. The width of a single positioning identification strip 2 is about 1mm. The width of the horizontal identification strip 3 is slightly wider than the vertical identification strip 4, and the distance between the outer edge of the positioning identification strip 2 and the outer edge of the positioning sticker 1 is about 5mm.

[0038] The positioning sticker 1 is provided with identification letters 6 at positions corresponding to the horizontal identification strips 3, and the positioning sticker 1 is provided with identification numbers 7 at positions corresponding to the vertical identification strips 4, so that the doctor can clearly distinguish between rows and columns. The horizontal and vertical staggered positioning identification strips 2 divide the positioning sticker 1 into identical square areas, and the length and width of each square area are about 20 mm. This technical solution has 12 square areas arranged horizontally and 7 square areas arranged vertically on the positioning sticker 1. On the positioning sticker 1 in each square area, a number of positioning holes 5 with uniform horizontal and vertical spacing are evenly distributed. This technical solution has four positioning holes 5 arranged in the horizontal and vertical directions in the square area, and the center spacing of each positioning hole 5 is about 4 mm. The inner diameter of each positioning hole 5 is about 1.5 mm. In each square area of this technical solution, 16 evenly spaced positioning holes 5 are arranged.

[0039] When using this structure to locate the patient for CT-guided puncture, peel off the isolation oil paper and fix the bottom of the positioning sticker 1 to the patient's skin area to be CT scanned through the adhesive layer. The vertical position of the lesion in the patient's body and the horizontal identification strip 3 can be displayed under the CT scan image. According to the distance between the lesion point and the corresponding adjacent horizontal identification strip 3, determine whether the lesion point can be vertically punctured or obliquely punctured to locate the puncture point positioning hole 5 on the positioning sticker 1. Use a marker to press the mark in the corresponding positioning hole 5 to determine the positioning point on the skin, thereby achieving the purpose of quickly and accurately determining the puncture positioning point, which is convenient for subsequent interventional puncture operations.

[0040] The innovative technical points and beneficial effects of this utility model are at least:

[0041] 1. This structure uses the positioning identification strip 2 in conjunction with the positioning hole 5 on the positioning sticker 1 to quickly and accurately determine the positioning point under CT guidance. Compared with the traditional puncture point positioning method in which doctors use iron wire to stick and fix on the skin to locate the distance of the lesion point, the traditional operation requires cumbersome preliminary work, the stability of the iron wire fixed on the skin is poor, and there is often a risk of deviation. When the distance between the iron wire and the skin lesion point is too large, there is a large error in the distance measurement under the CT image. When the iron wire is used as the reference point to draw the positioning point, the large distance and the uneven surface of the patient's skin affect the positioning of the puncture point of the lesion, resulting in a large error, thereby affecting the efficiency and effect of interventional puncture of the lesion.

[0042] 2. This structure uses crisscrossing positioning strips 2 to evenly divide the positioning patch 1 into square grid-like units, quickly narrowing the area of lesion location and allowing for precise positioning within the smaller grids. Compared to traditional positioning patches 1, which search for positioning points over a large area, this structure is more efficient, more accurate, and less prone to misoperation.

[0043] 3. The grid-shaped square area of this structural unit is evenly arranged in a matrix with several small positioning holes 5, which is used to ensure that the puncture point is located in the area of the positioning hole 5 to the greatest extent, thereby improving the accuracy of the puncture point positioning during precise positioning. The smaller positioning holes 5 can ensure that when the marker pen marks the positioning point, the positioning point mark displayed on the patient's skin is a precise small dot, rather than a large circle. This ensures that the needle tip of the puncture needle can accurately puncture the dot mark during puncture, further ensuring the accuracy of the puncture.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A CT-guided puncture positioning structure, characterized in that: include: Positioning sticker, positioning identification strip; the positioning identification strip is arranged on the positioning sticker, and the positioning identification strip includes a plurality of horizontal identification strips arranged horizontally and a longitudinal identification strip arranged vertically, and the plurality of horizontal identification strips and the longitudinal identification strips form a plurality of square areas on the positioning sticker, and a plurality of positioning holes are opened on the positioning sticker in each square area; Each square area is provided with 3-5 positioning holes in the horizontal and vertical directions, the center distance between each positioning hole is about 3-5 mm, and the inner diameter of each positioning hole is 1-2 mm.

2. The CT-guided puncture positioning structure according to claim 1, characterized in that: The positioning sticker is provided with identification letters corresponding to the positions of the horizontal identification strips, and the positioning sticker is provided with identification numbers corresponding to the positions of the vertical identification strips.

3. The CT-guided puncture positioning structure according to claim 1, characterized in that: The bottom of the positioning sticker is coated with an adhesive layer, and the adhesive layer is covered with isolation oil paper.

4. The CT-guided puncture positioning structure according to claim 1, characterized in that: The length and width of the positioning sticker are 200-300mm*100-200mm, and the thickness is 0.5-1mm.

5. The CT-guided puncture positioning structure according to claim 1, characterized in that: The positioning sticker is made of a flexible silicone film material, and the positioning identification strip is made of a flexible latex material.

6. The CT-guided puncture positioning structure according to claim 1, characterized in that: The protrusion height of the positioning identification strip is 0.5-1.2 mm.

7. The CT-guided puncture positioning structure according to claim 1, characterized in that: The center line spacing between adjacent transverse identification strips is 18-22 mm, the center line spacing between adjacent longitudinal identification strips is 18-22 mm, and the width of a single positioning identification strip is 0.8-1.2 mm.

8. The CT-guided puncture positioning structure according to claim 1, characterized in that: The width of the transverse identification strip is slightly wider than that of the longitudinal identification strip; the length and width of each square area are both 18-22 mm.

9. The CT-guided puncture positioning structure according to claim 1, characterized in that: The positioning sticker is provided with 10-14 square areas in the horizontal direction and 5-9 square areas in the vertical direction.

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