Marking and positioning device

Abstract

The invention discloses a mark positioning device. The mark positioning device comprises a supporting part; the marking part is located on one side of the supporting part and used for conducting position marking on a target area on a scanning image by absorbing medical rays during medical ray scanning; the positioning part is positioned on the marking part and is used for positioning a target object on the scanning image; the other side of the supporting part is used for being attached and fixed to the human skin surface corresponding to the target area. According to the scheme, stable supporting is formed on the human skin surface through the supporting part, the position of a target object in a patient is determined through the marking part and the positioning part, and the needle inserting position is marked on the human skin surface according to the position. Through cooperation of the positioning part and the marking part, the position of the target object can be determined more accurately, and therefore the accuracy of the needle inserting position is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical appliances, and more specifically, to a marking and positioning device for determining the needle insertion position on the human skin surface by marking and positioning a target object in the human body. Background Art

[0002] In recent years, invasive methods such as biopsy, minimally invasive puncture surgery, and orthopedic puncture surgery have become common testing or surgical methods in hospitals. Before inserting the puncture needle into the human body, the needle insertion position needs to be located to ensure that the puncture needle can reach the target object such as tissue organs or lesions. Therefore, computed tomography (CT) is usually used to scan the target area of ​​the human body to obtain a CT image containing the target object; then, the target object in the CT image is matched with the position of the patient's skin to determine the actual needle insertion position of the human body.

[0003] In the prior art, when positioning the target object and the patient's skin, it is necessary to use target points, marking boards, manual drawing lines, sticky marking paper, etc. to form a corresponding relationship between the target object and the patient's skin surface, and mark the needle insertion position on the skin according to the position of the lesion in the CT image, which serves as the basis for the actual needle insertion position. However, this positioning method is complicated, and due to the displacement of the human body surface, there will be a position deviation between the marking structure and the skin, affecting the needle insertion accuracy. Summary of the invention

[0004] The purpose of the present invention is to provide a marking and positioning device for determining the needle insertion position on the human skin surface by marking and positioning the target object in the human body, so as to solve the problem of inaccurate actual needle insertion position on the patient's skin caused by deviation of the marking position of the target object in the human body.

[0005] In order to achieve the above objectives, this scheme adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a marking positioning device, comprising:

[0007] Supporting part;

[0008] The marking part located on one side of the supporting part is used to mark the position of the target area on the scanned image by absorbing the medical rays during the medical ray scanning;

[0009] A positioning portion located on the marking portion, used to position a target object on the scanned image;

[0010] The other side of the support portion is used to fit and fix to the human skin surface corresponding to the target area.

[0011] In a preferred embodiment, the marking portion includes a plurality of marking structures spaced apart on the supporting portion;

[0012] In a preferred embodiment, the position on the support portion corresponding to the spacing area between the plurality of marking structures is a hollow structure.

[0013] In a preferred example, at least one marking structure among the multiple marking structures serves as a starting position marker for marking the position of the target area.

[0014] In a preferred embodiment, the marking portion includes n marking structures, wherein n≥3;

[0015] The first marking structure among the multiple marking structures is used as the starting identification position; the first distance formed between the first marking structure and the second marking structure is used as the starting identification mark for marking the position of the target area;

[0016] A second spacing formed between a second marking structure in the plurality of marking structures and an adjacent marking structure in the nth marking structure serves as a marking identification mark for marking the position of the target area.

[0017] In a preferred example, the first spacing and the second spacing are different in distance.

[0018] In a preferred embodiment, the marking portion includes m marking structures, wherein m≥3;

[0019] The first marking structure among the multiple marking structures is used as the starting identification position; the width of the first marking structure is used as the starting identification mark for marking the position of the target area;

[0020] The second to m-th marking structures among the multiple marking structures serve as marking identification marks for the target area position marks; the second to m-th marking structures have the same width.

[0021] In a preferred example, the width of the first marking structure is different from the widths of the second to m-th marking structures.

[0022] In a preferred embodiment, the marking portion includes x marking structures, wherein x≥3;

[0023] The first marking structure among the multiple marking structures is used as the starting identification position; the structural shape of the first marking structure is used as the starting identification mark for marking the position of the target area;

[0024] The second to x-th marking structures among the multiple marking structures serve as marking identification marks for the position of the target area; the second to x-th marking structures have the same structural shapes.

[0025] In a preferred example, the structural shape of the first marking structure is different from the structural shapes of the second to xth marking structures.

[0026] In a preferred example, a plurality of marking structures are arranged in parallel on the support portion.

[0027] In a preferred example, the marking structures among the plurality of marking structures that are not used as starting position marks for marking the position of the target area are arranged on the support portion in an equidistant manner.

[0028] In a preferred embodiment, the marking portion is made of a solid material that absorbs medical radiation; the solid material is fixed at a predetermined position of the supporting portion;

[0029] Alternatively, the marking portion is made of a liquid material that absorbs medical rays; the liquid material is attached to a predetermined position of the supporting portion by coating.

[0030] In a preferred embodiment, the marking structure is composed of a plurality of solid material segments that absorb medical radiation, and the plurality of solid material segments are connected by a flexible connection structure.

[0031] In a preferred example, the support portion is made of a permeable material; the liquid material can penetrate the support portion and reach the surface of human skin.

[0032] In a preferred example, the support portion is a flexible structure.

[0033] In a preferred example, the positioning portion includes at least one positioning structure arranged on the marking portion;

[0034] The positioning structure is a branch structure extending outward from the marking portion; the angle θ between the branch structure and the marking portion is in the range of 0°<θ≤90°; or,

[0035] The positioning structure is made of a material different from that of the positioning portion; or

[0036] The positioning structure has a width different from that of the positioning portion; or,

[0037] The positioning structure is a positioning hole or a positioning protrusion arranged on the marking part.

[0038] In a preferred example, the positioning portion is arranged on at least one marking structure.

[0039] In a preferred example, the positioning portion is a solid material that absorbs medical rays, a liquid material that absorbs medical rays, or a material that does not absorb medical rays.

[0040] In a preferred embodiment, the device comprises: a bonding portion;

[0041] One side of the adhesive layer is fixed to the supporting part, and the other side of the adhesive layer is used to fit and fix to the human skin surface corresponding to the target area.

[0042] In a preferred embodiment, the adhesive layer is provided with a guide channel corresponding to the position of the marking portion and / or the positioning portion on the support portion;

[0043] The liquid marking portion and / or positioning portion can reach the surface of human skin through the guiding channel.

[0044] In a preferred embodiment, the device includes: a protective part; the protective part is used to be detachably connected to the side of the supporting part that is used to fit the surface of human skin or the side of the adhesive part that is used to fit the surface of human skin when the marking positioning device is not in use.

[0045] In a preferred example, the supporting portion and / or marking portion is rectangular, half-moon or shuttle-shaped.

[0046] The beneficial effects of the present invention are as follows:

[0047] This solution uses the support part to form a stable support on the human skin surface, uses the marking part and the positioning part to determine the position of the target object in the patient's body, and marks the needle insertion position on the human skin surface according to the position. The cooperation between the positioning part and the marking part can more accurately determine the position of the target object, thereby improving the accuracy of the needle insertion position.

[0048] The marking part of this solution adopts a multi-segment structure, and the multi-segment structures are connected by a flexible structure, so that the marking part can better fit the larger undulating human skin surface, ensuring the accuracy of the target object position in the patient's body, thereby improving the accuracy of the needle insertion position. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0050] Figure 1 A schematic diagram showing an example of the marking positioning device described in the present invention;

[0051] Figure 2 A schematic diagram showing another example of the marking positioning device described in the present invention;

[0052] Figure 3 A schematic diagram showing another example of the marking positioning device described in the present invention;

[0053] Figure 4 A schematic diagram showing another example of the marking positioning device described in the present invention;

[0054] Figure 5 A schematic diagram showing another example of the marking positioning device described in the present invention;

[0055] Figure 6 A schematic diagram showing another example of the marking positioning device described in the present invention;

[0056] Figure 7 A schematic diagram showing an example of the development form of the marking positioning device described in the present solution in a medical image;

[0057] Figure 8 A schematic diagram showing another example of the development form of the marking positioning device described in this scheme in a medical image;.

[0058] Reference Numbers

[0059] 1. Support part; 2. Marking part; 3. Positioning part; 4. Protection part; 5. Hollow structure; 6. Connecting structure; 7. Lesion. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, it should be understood that the "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and other indications of the orientation, positional relationship or the outline of the device are based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0062] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0063] After analyzing and studying the existing technologies, the existing positioning methods have the following problems, including but not limited to:

[0064] 1. Due to human breathing, shaking and other reasons, the position of the rigid positioning structure will be offset, making it impossible to accurately determine the true position of the target object, resulting in inaccurate positioning and large error in the needle insertion position;

[0065] 2. When positioning structures such as marking paper come into contact with human skin, wrinkles and protrusions are very likely to appear, especially when encountering areas with large undulations on the surface of the human skin, which makes it difficult to fit with them, thereby affecting the positioning accuracy of the target object and causing large errors in the needle insertion position.

[0066] Therefore, the present invention aims to provide a marking and positioning device, which can form a good fit with the surface of human skin, and accurately determine the position of the target object in the human body by combining marking and positioning, so as to determine the needle insertion position on the human body surface according to the position of the target object, thereby ensuring the accuracy of the needle insertion position.

[0067] A marking positioning method proposed in this solution is described in detail below with reference to the accompanying drawings.

[0068] like Figure 1As shown, the marking and positioning device recorded in this scheme includes: a support portion 1; a marking portion 2 is provided on one side of the support portion 1; and the other side of the support portion 1 is used to fit and fix with the human skin surface corresponding to the target area. A positioning portion 3 is provided on the marking portion 2. The support portion 1 in the device can be directly fitted with the human skin surface, or can be indirectly fitted and fixed with the human skin surface through other supporting structures or adhesive materials. The support portion 1 serves as a supporting frame of the calibration device, and can provide stable support for the marking and positioning device on the human skin surface.

[0069] In this solution, the support part 1 is not only a structure that provides support for the marking part 2 and the positioning part 3, but also a structure for fitting the skin. In order to ensure that the support part 1 can better fit the surface of the human skin, the support part 1 can be made of flexible materials, such as woven fabrics, freely bendable resin sheets, thin cardboard, films, etc. The choice of the support part 1 is not limited to the above materials, and any material or structure that can be freely bent and can fit the surface of the human skin is acceptable.

[0070] In this solution, the support part 1 does not participate in the actual positioning of the target object. Therefore, the material of the support part 1 can be selected to be a material that can transmit medical rays or a material that absorbs medical rays. In order to reduce the material cost of the support part 1 and reduce the impact on the marking part 2 and the positioning part 3 during use, the support part 1 can preferably be made of a material that can transmit medical rays.

[0071] In one example, the support portion 1 can be made of gauze or a single-sided adhesive sticker. In order to facilitate the fit of the human skin surface and reduce the impact on CT scanning, the thickness of the gauze or sticker should not be too thick. For example, the gauze or sticker can be 0.5 mm to 2.5 mm.

[0072] When a CT scan is performed on a human body, the radiation emitted by the CT device cannot penetrate the marking part 2, so that the marking part 2 can be displayed in the CT image obtained by the scan. The purpose of the marking part 2 in the CT image is to mark the position of the target area through the position of the marking part 2, so as to preliminarily determine the approximate position of the target object such as each tissue organ or lesion in the target area. However, only using the marking part 2 to mark the position of the target area cannot determine the specific position of the target object. Therefore, it is necessary to cooperate with the positioning part 3 to further locate the target object and determine its specific position.

[0073] In this solution, the marking part 2 can be made of a rigid material that absorbs medical rays, for example, a solid material that absorbs medical rays. The marking part 2 can include a plurality of marking structures, and the marking structures can be rectangular, cylindrical, elliptical, etc. The use of a plurality of marking structures can more clearly divide the target area, thereby determining the approximate position of the target object in the target area. The plurality of marking structures are arranged at a predetermined interval and are arranged in parallel on the support part 1. The fixing method of the marking structure and the support part 1 can be bonding, clamping, etc.

[0074] In one embodiment, the support portion 1 is an elliptical support frame, and a position is reserved on the support frame. The position can be a slot, a bayonet, or other structure. The two ends of the marking structure are fixed in the slot on the support frame by means of a buckle, a block, or other structure. Alternatively, the two ends of the marking structure are inserted into the bayonet on the support frame and fixed.

[0075] In another example, the support part 1 is a rectangular support frame, and a support bridge is provided on the support frame corresponding to the position where the marking part 2 needs to be fixed, and the support bridge and the support frame are an integral structure. The marking part 2 is fixed on the support bridge by bonding or other methods.

[0076] In this scheme, if Figure 1 As shown, in order to reduce the weight and material of the support part 1, the interior of the support part 1 can be set as a hollow structure 5. For example, the support part 1 is a support frame with a hollow middle. For another example, the position on the support part 1 corresponding to the spacing area between the multiple marking structures is a hollow structure 5. That is, only the support frame and the support bridge for fixing the marking part 2 are retained.

[0077] When using a marking and positioning device to perform a human CT scan, a starting scanning position needs to be determined. Therefore, at least one of the multiple marking structures needs to be used as a starting position marker for marking the target area position. Specifically,

[0078] like Figure 2 Shown to Figure 5 As shown, the first marking structure among the n marking structures can be used as the starting identification position. Where n ≥ 3. Then, the first spacing formed between the first marking structure and the second marking structure is used as the starting identification mark for the target area position mark. The second spacing formed between the second marking structure in the multiple marking structures and the adjacent marking structure in the nth marking structure is used as the marking identification mark for the target area position mark. Wherein, the spacing distances of the first spacing and the second spacing are different.

[0079] In one example, the marking part 2 includes four marking structures, and the first marking structure is used as the starting identification position. A first spacing is formed between the first marking structure and the second marking structure; a second spacing is formed between the second marking structure and the third marking structure; and a second spacing is formed between the third marking structure and the fourth marking structure. The first spacing is greater than the second spacing. When the CT device scans, the first marking structure and the second marking structure are scanned, and the starting position of the marking structure can be determined by the first spacing. The second to fourth marking structures are actually used to mark the positions of the target area.

[0080] like Figure 1 and Figure 6 As shown, the first marker structure among the m marker structures can be used as the starting identification position. Wherein, m≥3. Then, the first marker structure is used as the starting identification mark for marking the target region position. The second marker structure to the mth marker structure among the multiple marker structures are used as the marker identification marks for marking the target region position. Wherein, the width of the first marker structure is different from the width of the second marker structure to the mth marker structure; the width of the second marker structure to the mth marker structure is the same.

[0081] In one example, the marking portion 2 includes three marking structures, and the first marking structure is used as the starting identification position. The width of the first marking structure is greater than the width of the second marking structure; the width of the first marking structure is greater than the width of the third marking structure. The width of the second marking structure is the same as the width of the third marking structure. When the CT device scans, the first marking structure is scanned, and the starting position of the marking structure can be determined by the width of the first marking structure. The second marking structure and the third marking structure are actually used to mark the position of the target area.

[0082] like Figure 5 As shown, the first marker structure among the x marker structures can be used as the starting identification position. Where x≥3. Then, the first marker structure is used as the starting identification mark for marking the target region position. The second marker structure to the xth marker structure among the multiple marker structures are used as the marker identification marks for marking the target region position. Wherein, the shape of the first marker structure is different from the structural shapes of the second marker structure to the mth marker structure; the structural shapes of the second marker structure to the xth marker structure are the same.

[0083] In one example, the marking part 2 includes 5 marking structures, and the first marking structure is used as the starting identification position. The shape of the first marking structure is "S" type; the shapes of the second to fifth marking structures are "I" type. When the CT device scans, the first marking structure is scanned, and the starting position of the marking structure can be determined by the shape of the first marking structure. The second marking structure and the fifth marking structure are actually used to mark the position of the target area.

[0084] In this scheme, the first marker structure among the y marker structures can be used as the starting identification position. Wherein, y≥3. Then, the first marker structure is used as the starting identification mark for the target area position mark. The second marker structure to the yth marker structure among the multiple marker structures are used as the marking identification marks for the target area position mark. Wherein, the first marker structure is provided with a positioning part 3 or an identification structure; the second marker structure to the yth marker structure are not provided with a positioning part 3 or an identification structure.

[0085] In one example, if Figure 5 As shown, the marking part 2 includes seven marking structures, and the first marking structure is used as the starting identification position. At least one identification hole is opened on the first marking structure; the second to seventh marking structures use positioning parts 3 of other structural forms. When the CT device scans, the first marking structure is scanned, and the starting position of the marking structure can be determined through the identification hole of the first marking structure. The second marking structure and the fifth marking structure are actually used to mark the position of the target area.

[0086] In this solution, on the basis of setting the start scanning position, the end position can be further set to mark the target area more clearly. Therefore, one marking structure can be selected from multiple marking structures as the end position mark of the target area position mark.

[0087] For easy identification and use, the marking structure used as the end position mark should be located behind the marking structure used as the start position mark according to the scanning direction of the CT device, that is, the start identification mark and the end identification mark are arranged according to the scanning direction.

[0088] When the spacing between the marking structures is used as the recognition standard, the first marking structure among the n marking structures is used as the starting recognition position, and the first spacing formed between the first marking structure and the second marking structure is used as the starting recognition mark for the target area position mark; wherein n≥4. The nth marking structure among the n marking structures is used as the ending recognition position, and the second spacing formed between the second marking structure and the adjacent marking structure in the nth marking structure is used as the starting recognition mark for the target area position mark; the third spacing formed from the second marking structure to the n-1th marking structure arranged at equal spacing among the n marking structures is used as the ending recognition mark for the target area position mark. wherein the first spacing and the second spacing are the same distance, and both are different from the third spacing distance; or, the spacing distances of the first spacing, the second spacing, and the third spacing are all different.

[0089] When the width of the marking structure is used as the recognition standard, the first marking structure among the m marking structures is used as the starting recognition position; the width of the first marking structure is used as the starting recognition mark for the target area position mark; wherein m≥3. The mth marking structure among the m marking structures is used as the ending recognition position; the width of the mth marking structure is used as the ending recognition mark for the target area position mark. The second marking structure to the m-1th marking structure arranged at equal intervals among the m marking structures are used as the marking recognition marks for the target area position mark; the widths of the second marking structure to the m-1th marking structure are the same. Among them, the widths of the first marking structure and the m-th marking structure are the same, and both are different from the widths of the second marking structure to the m-1th marking structure. For example, the widths of the first marking structure and the m-th marking structure are 3mm, and the widths of the second marking structure to the m-1th marking structure are 2mm. Alternatively, the width of the first marking structure, the width of the m-th marking structure, and the widths of the second marking structure to the m-1th marking structure are all different. For example, the width of the first marking structure is 4 mm; the width of the m-th marking structure is 3 mm; and the widths of the second marking structure to the m-1-th marking structure are 2 mm.

[0090] When the structural shape of the marker structure is used as the recognition standard, the first marker structure among the x marker structures is used as the starting recognition position; the shape of the first marker structure is used as the starting recognition mark for the target area position mark; wherein x≥3. The xth marker structure among the x marker structures is used as the ending recognition position; the shape of the xth marker structure is used as the ending recognition mark for the target area position mark. The second marker structure to the x-1th marker structure arranged at equal intervals among the x marker structures are used as the marker recognition marks for the target area position mark; the shapes of the second marker structure to the x-1th marker structure are the same. For example, the structural shapes of the first marker structure and the mth marker structure are "S" type, and the widths of the second marker structure to the m-1th marker structure are "I" type. Alternatively, the structural shapes of the first marker structure, the structural shape of the mth marker structure, and the structural shapes of the second marker structure to the m-1th marker structure are all different. For example, the structure of the first marker structure is S "type"; the structural shape of the mth marker structure is arc type; and the structural shapes of the second marker structure to the m-1th marker structure are "I" type.

[0091] In this solution, the marking part 2 may also be made of a liquid material that absorbs medical rays, and the liquid material is attached to a predetermined position of the supporting part 1 by coating.

[0092] In one example, the support part 1 is a rectangular support frame, and a support bridge is provided on the support frame corresponding to the position where the marking part 2 is required to be provided, and the support bridge and the support frame are an integral structure. The marking part 2 uses ink that absorbs medical radiation and is attached to the support bridge by coating.

[0093] Based on the solution that the marking part 2 uses a liquid material that absorbs medical radiation, the liquid material can penetrate through the support part 1 to the surface of human skin, so that the marking part 2 can mark the target area more accurately. In order to enable the marking part 2 of the liquid material to smoothly penetrate into the surface of human skin, the support part needs to be made of a permeable material, such as gauze, permeable paper, permeable film, etc., so that the marking part 2 of the liquid material can smoothly penetrate through the support part 1 to the surface of human skin.

[0094] In this solution, the marking and positioning device can be applied to the chest, abdomen, back, legs and other parts of the human body. At this time, good fit with the human skin surface can be achieved by virtue of the curvature of the support part 1 and the marking part 2. However, for some parts with large curvature changes, such as the breasts, pelvic area, shoulders and other parts of the human body, better fit is required to accurately mark the target area.

[0095] In this solution, the marking part 2 can be designed as a multi-segment structure, and each segment is connected by a flexible structure, so as to improve the adaptability of the marking part 2. For example, the marking structure that absorbs medical rays is decomposed into 4 segments, and then each segment is connected by a film. When the marking positioning device is attached to the human breast, the support part 1 made of flexible material can fit the skin surface of the breast area as much as possible according to the shape of the breast. With the help of the film, the multi-segment marking structure can avoid the position with extremely changed curvature, so that each segment of the marking structure can better fit the skin surface of the breast area, greatly improving the accuracy of marking the target area.

[0096] In this solution, the marking structure can also be designed as an arc, fan, etc. structure according to the curvature and shape change of the skin surface of the physiological part where the marking part 2 is required, so as to adapt to the skin conditions of different physiological parts of the human body. At the same time, the structure or size of the support part 1 is adjusted accordingly with the marking part 2.

[0097] In addition, the size of the marking and positioning device can be set to be adjustable or detachable according to the different physiological parts where the marking and positioning device is used. That is, the size of the marking and positioning device can be adjusted according to the skin conditions of different physiological parts, or the marking and positioning device can be split into multiple sub-devices to adapt to the skin conditions of different physiological parts. It is also possible to design the marking and positioning device into multiple sizes and models, and select marking and positioning devices of different sizes and models according to the skin conditions of different physiological parts.

[0098] In this scheme, if Figure 7 and Figure 8 As shown, after the target area is marked with the marking part 2, the positioning part 3 is needed to further locate the target object and determine the specific position of the target object. The positioning part 3 can be set on the marking part 2. The core function of the top part is to more accurately locate the target object in the target area after the marking part 2 marks the approximate position of the target object in the target area. In this way, the specific position of the target object is finally determined by combining the steps of marking and positioning. In this solution, the material of the positioning part 3 can be the same as that of the marking part 2. For example, both the marking part 2 and the positioning part 3 are made of metal materials such as lead and its alloys, titanium and its alloys that absorb medical rays, or materials such as silicone that absorb medical rays. Specifically,

[0099] like Figure 1 and Figure 2 As shown, the positioning part 3 includes at least one positioning structure arranged on the marking structure in the marking part 2. The positioning structure can be a positioning hole or a positioning convex point arranged on the marking structure. The positioning hole, the positioning convex point and other structures are used as positioning scales to indicate the location of the target object. Figure 7 As shown, by using multiple marking structures and positioning scales, it can be determined that the lesion 7 is located Figure 7 The area indicated by the box.

[0100] like Figure 3 As shown, the positioning portion 3 includes at least one positioning structure arranged on the support portion 1. Specifically, the positioning structure can be arranged in an area adjacent to the marking portion 2 on the support portion 1. For example, a scale is arranged on one side of a marking portion 2 or each marking portion 2 on the support portion 1. The scale is used as a positioning ruler to indicate the position of the target object. The scale can be in the form of ink that absorbs medical rays or a structure that absorbs medical rays. In addition, in this example, the scale and the marking portion 2 are separate structures, and the two are arranged adjacent to but not connected on the support portion 1.

[0101] like Figure 4 As shown, the positioning portion 3 includes at least one positioning structure arranged on the marking structure in the marking portion 2. The positioning structure can be at least one branch structure extending outward from the marking structure. The branch structure is used as a positioning scale to indicate the location of the target object. The angle θ between the branch structure and the marking portion 2 is in the range of 0°<θ≤90°.

[0102] In one embodiment, the positioning portion 3 includes seven positioning structures. The positioning structure is specifically a branch structure extending perpendicularly to the marking structure toward the support frame in the support portion 1, or the positioning structure is specifically a branch structure extending toward the support frame in the support portion 1 at an angle of 60° with the marking structure. The length of the two branch structures can be 1 mm to 2 mm, and they are evenly arranged on the marking structure. Figure 8 As shown, by using multiple branch structures and marking structures, it can be determined that the lesion 7 is located Figure 8 The area indicated by the box.

[0103] like Figure 6 As shown, the positioning part 3 includes at least one positioning structure arranged on the marking structure in the marking part 2. The positioning structure can be a structure made of a different material from the marking structure, that is, the marking structure is divided into multiple sections, and then the material different from the marking structure is used as a connector to connect the multiple marking structure sections. The connector is used as a positioning ruler to indicate the location of the target object.

[0104] In one example, the positioning part 3 includes three positioning structures. The positioning structure uses a material that can be penetrated by medical rays as a connector. The marking structure is divided into multiple sections, and multiple marking structure sections are connected together using connectors. Using multiple connectors and marking structures, the specific area where the target object is located can be determined.

[0105] The positioning part 3 includes at least one positioning structure arranged on the marking structure in the marking part 2. The positioning structure can be a structure with a different width from the marking structure, that is, the marking structure is divided into regions with different widths. The change in width is used as a positioning ruler to indicate the location of the target object.

[0106] In one example, the positioning portion 3 includes four positioning structures. For the convenience of processing, the positioning structure can be a part of the marking structure; then, the width of the positioning structure used to locate the target object on the marking structure is reduced, and the width of the remaining positions is the same. For example, the width of the marking structure is 4 mm, and the width of the area on the marking structure used to locate the target object (i.e., the four positioning structures) is processed to 2 mm. By using the different widths, the specific area where the target object is located can be determined.

[0107] In this solution, the positioning part 3 can be arranged on a marking structure for marking a starting recognition position, a marking structure for marking a terminating recognition position, or a marking structure for marking a target area.

[0108] In addition, the positioning part 3 can be set on multiple marking structures or only on one marking structure. If multiple marking structures are provided with positioning parts 3, the number of positioning parts 3 on different marking structures can be the same or different. The corresponding relationship of the positioning parts 3 on different marking structures can be the same or different. That is, they can be arranged according to a predetermined positioning rule or positioning scale.

[0109] In this solution, the material of the positioning part 3 can be the same as that of the marking part 2. For example, both the marking part 2 and the positioning part 3 use liquid materials that absorb medical rays. At this time, the positioning part 3 includes at least one positioning structure arranged on the marking structure in the marking part 2. The positioning structure can be at least one branch structure extending outward along the marking structure. The branch structure is used as a positioning scale to indicate the location of the target object. The angle θ between the branch structure and the marking part 2 is in the range of 0°<θ≤90°.

[0110] In one example, the marking structure is a liquid material coated on the supporting bridge in the supporting portion 1. The positioning portion 3 includes three positioning structures; the positioning structure is also a liquid material coated on the supporting bridge in the supporting portion 1. The positioning structure is specifically a branch structure extending perpendicular to the marking structure toward the supporting frame in the supporting portion 1. Alternatively, the positioning structure is specifically a branch structure extending toward the supporting frame in the supporting portion 1 at an angle of 30° to the marking structure. The three branch structures can be 0.5 mm to 1 mm in length and are evenly arranged on the marking structure. Using the three branch structures and the marking structure, the specific position of the target object in the target area can be determined.

[0111] In this solution, the material of the positioning part 3 can be different from that of the marking part 2. For example, when the positioning structure in the positioning part 3 is used as both a connector for connecting multiple segments of the marking structure and a positioning structure for positioning the target object, the marking part 2 is made of a material that absorbs medical rays, and the positioning structure in the positioning part 3 can be made of a material that does not absorb medical rays, such as a film. This design can not only use the positioning part 3 to connect multiple segments of the marking structure, so that the marking part 2 has better bending properties, but also the position of the discontinuity in the middle of the multiple segments of the marking structure in the CT image can be used as a positioning ruler for positioning the target object.

[0112] In this solution, in order to prevent the support part 1 from wrinkling when it fits the surface of human skin, which affects the accuracy of marking positioning, an adhesive part can be further added to the marking positioning device. The adhesive part plays a bonding role, and its main function is to stably bond the support part 1, the marking part 2 and the positioning part 3 to the surface of human skin. The adhesive part only plays the role of bonding and will not affect the use of the support part 1, the marking part 2 and the positioning part 3, and can prevent the support part 1 from falling off or wrinkling due to the expansion and contraction of the skin surface, thereby avoiding affecting the accuracy of marking positioning of the marking part 2 and the positioning part 3. In order to ensure the accuracy of the marking positioning device, the thickness of the adhesive part needs to be as thin as possible, and controlled within the range of 0.1mm to 1mm.

[0113] In one example, the adhesive portion can be a double-sided adhesive tape, with one side of the double-sided adhesive tape being attached to the skin, and the other side being attached and fixed to the side of the support portion 1 that is used to attach to the surface of human skin. The thickness of the double-sided adhesive tape is 0.5 mm. Here, the double-sided adhesive tape can be pre-applied to the support portion 1, and when in use, the support portion 1 is directly attached to the surface of human skin. Alternatively, before the marking and positioning device is used, the double-sided adhesive tape can be applied to the surface of human skin, and then the support portion 1 can be attached to the double-sided adhesive tape area.

[0114] In addition, the material of the adhesive part in this solution is not limited to the double-sided adhesive mentioned above, and any other adhesive that can meet the bonding requirements between the human skin surface and the support part 1 can be used.

[0115] In this solution, if both the marking part 2 and the positioning part 3 are made of liquid materials that absorb medical radiation (such as ink that absorbs medical radiation), when in use, the ink can penetrate the supporting part 1 to reach the surface of human skin, so that the accuracy of marking and positioning the target object is high. Therefore, it is necessary for the adhesive part to also have a certain degree of permeability or conductivity so that the ink can flow smoothly to the surface of human skin.

[0116] In one example, the bonding portion may use a permeable and adhesive film layer, and the ink that absorbs medical radiation may penetrate into the surface of human skin through the permeability of the film layer.

[0117] In another example, the bonding portion may use double-sided tape, and a guide channel is provided on the double-sided tape at a position corresponding to the marking portion 2 and / or the positioning portion 3, so that the liquid marking portion 2 and / or the positioning portion 3 can reach the surface of human skin through the guide channel.

[0118] In this solution, the support part 1 or the support part 1 with the adhesive part needs to ensure the adhesiveness of the adhesive surface when not in use, so as to ensure the adhesiveness with the human skin surface when in use. Therefore, this solution can further add a protective part 4 to the marking and positioning device; when the marking and positioning device is not in use, the protective part 4 is detachably connected to the side of the support part 1 used to fit the human skin surface or the side of the adhesive part used to fit the human skin surface, so as to ensure the adhesiveness of the adhesive surface.

[0119] In one example, the protection part 4 can be a plastic sheet, plastic cardboard, etc. It can be conveniently attached to the side of the support part 1 used to fit the human skin surface or the side of the adhesive part used to fit the human skin surface, and can be quickly separated from the side of the support part 1 used to fit the human skin surface or the side of the adhesive part used to fit the human skin surface when the marking and positioning device is used.

[0120] The marking and positioning device recorded in this scheme can be applied to the surface of human skin in a single piece to mark and position a single target object in the target area. It is also possible to splice multiple marking and positioning devices together to form a marking and positioning array, which is applied to the surface of human skin in a large area, and is used for marking and positioning multiple target objects in a large target area. Specifically, the marking and positioning device can be designed as a regular geometric shape such as a rectangle, a half-moon or a shuttle. According to the shape of different parts of the human body, marking and positioning devices of different shapes are used to make the marking and positioning device better fit the surface of the human body. For example, the support portion in the marking and positioning device is designed as a half-moon shape, and the half-moon-shaped marking and positioning device is conducive to achieving a good fitting effect with parts with large curvatures such as near the breast, near the shoulder and elbow, and near the knee. In addition, in order to better match the overall shape of the marking and positioning device, the marking portion can also be designed as an arc, a half-moon shape, etc., to ensure that it can better fit the human skin in parts with large curvatures. For another example, the support portion in the marking and positioning device is designed as a shuttle shape, and the combined use of the shuttle-shaped marking and positioning devices can be conducive to fitting the human skin surface in narrow, small gaps or large span changes. For another example, when it is necessary to fit on a larger area of ​​human skin, a rectangular marking positioning device can be used.

[0121] In the case where the marking structure and the positioning structure of the marking and positioning device of the present scheme are made of solid materials that absorb medical rays, when the device is used, the protective part 4 is removed, and the support part 1 (or the support part 1 with the adhesive part) is applied to the skin surface of the target area of ​​the human body. If the marking structure in the marking part 2 is a multi-segment design, the degree of fit between the multi-segment marking structure and the skin surface can also be adjusted according to the curvature of the skin surface of the target area (for example, the breast area of ​​the human body). After the support part 1 and the marking part 2 with the positioning part 3 are attached, the human body is scanned in a predetermined direction using a CT device to obtain a CT image of the target area. In the CT image, the target object in the target area can be located according to the marking structure in the marking part 2 and the positioning structure in the positioning part 3 to obtain the specific position of the target object. The needle insertion position is determined on the human skin according to the specific position of the target object.

[0122] In the case where the marking structure and positioning structure of the marking and positioning device of the present scheme adopt liquid materials that absorb medical rays (hereinafter referred to as: marking ink and positioning ink), when the device is used, the protective part 4 is removed, and the support part 1 (or the support part 1 with an adhesive part) is applied to the skin surface of the target area of ​​the human body. The marking ink and positioning ink are applied at the position of the support bridge in the support part 1. The marking ink and positioning ink penetrate the support bridge in the support part 1 (if the support part 1 has an adhesive part, the ink passes through the adhesive part at the same time) and reach the surface of the human skin. The human body is scanned in a predetermined direction using a CT device to obtain a CT image of the target area. In the CT image, the target object in the target area can be located based on the marking ink and positioning ink on the skin surface to obtain the specific position of the target object. The needle insertion position is determined on the human skin based on the specific position of the target object.

[0123] In summary, the present invention uses the support part 1 to form a stable support on the human skin surface, uses the marking part 2 and the positioning part 3 to determine the position of the target object in the patient's body, and marks the needle insertion position on the human skin surface according to the position. The positioning part 3 cooperates with the marking part 2 to more accurately determine the position of the target object, thereby improving the accuracy of the needle insertion position.

[0124] The marking part 2 of this solution adopts a multi-segment structure, and the multi-segment structures are connected by a flexible structure, so that the marking part 2 can better fit the human skin surface with large undulations, ensuring the accuracy of the target object position in the patient's body, thereby improving the accuracy of the needle insertion position.

[0125] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A marking positioning device, characterized in that: include: Supporting part; The marking part located on one side of the supporting part is used to mark the position of the target area on the scanned image by absorbing the medical rays during the medical ray scanning; A positioning portion located on the marking portion, used to position a target object on the scanned image; The other side of the support portion is used to fit and fix to the human skin surface corresponding to the target area.

2. The marking positioning device according to claim 1, characterized in that: The marking portion includes a plurality of marking structures arranged at intervals on the supporting portion.

3. The marking positioning device according to claim 2, characterized in that: The position on the support portion corresponding to the spacing area between the multiple marking structures is a hollow structure.

4. The marking positioning device according to claim 2, characterized in that: At least one marking structure among the multiple marking structures serves as a starting position marker for marking the position of the target area.

5. The marking positioning device according to claim 2 or 4, characterized in that: The marking part includes n marking structures, wherein n≥3; The first marking structure among the multiple marking structures is used as the starting identification position; the first distance formed between the first marking structure and the second marking structure is used as the starting identification mark for marking the position of the target area; A second spacing formed between adjacent marking structures from the second marking structure to the nth marking structure among the multiple marking structures serves as a marking identification mark for the target area position mark.

6. The marking positioning device according to claim 5, characterized in that: The first interval and the second interval have different distances.

7. The marking positioning device according to claim 2 or 4, characterized in that: The marking part includes m marking structures, wherein m≥3; The first marking structure among the multiple marking structures is used as the starting identification position; the width of the first marking structure is used as the starting identification mark for marking the position of the target area; The second to m-th marking structures among the multiple marking structures serve as marking identification marks for the target area position marks; the second to m-th marking structures have the same width.

8. The marking positioning device according to claim 7, characterized in that: The width of the first mark structure is different from the widths of the second mark structure to the mth mark structure.

9. The marking positioning device according to claim 2 or 4, characterized in that: The marking part includes x marking structures, wherein x≥3; The first marking structure among the multiple marking structures is used as the starting identification position; the structural shape of the first marking structure is used as the starting identification mark for marking the position of the target area; The second to x-th marking structures among the multiple marking structures serve as marking identification marks for the position of the target area; the second to x-th marking structures have the same structural shapes.

10. The marking positioning device according to claim 9, characterized in that: The structural shape of the first marking structure is different from the structural shapes of the second to x-th marking structures.

11. The marking positioning device according to claim 2, characterized in that: A plurality of marking structures are arranged in parallel on the supporting part.

12. The marking positioning device according to claim 2 or 4, characterized in that: The marking structures among the multiple marking structures that are not used as the starting position marks for marking the position of the target area are arranged on the support part in an equidistant manner.

13. The marking positioning device according to claim 1, characterized in that: The marking part is made of a solid material that absorbs medical rays; the solid material is fixed at a predetermined position of the supporting part; Alternatively, the marking portion is made of a liquid material that absorbs medical rays; the liquid material is attached to a predetermined position of the supporting portion by coating.

14. The marking positioning device according to claim 2, characterized in that: The marking structure is composed of a plurality of solid material segments that absorb medical rays, and the plurality of solid material segments are connected by a flexible connection structure.

15. The marking positioning device according to claim 13, characterized in that: The support part is made of a permeable material; the liquid material can penetrate the support part and reach the surface of human skin.

16. The marking positioning device according to claim 1, 13 or 15, characterized in that: The supporting part is a flexible structure.

17. The marking positioning device according to claims 1, 2 and 13, characterized in that: The positioning portion includes at least one positioning structure disposed on the marking portion; The positioning structure is a branch structure extending outward from the marking portion; the range of the angle θ between the branch structure and the marking portion is 0°<θ≤90°; or, The positioning structure is made of a material different from that of the positioning portion; or The positioning structure has a width different from that of the positioning portion; or, The positioning structure is a positioning hole or a positioning protrusion arranged on the marking part.

18. The marking positioning device according to claim 17, characterized in that: The positioning portion is arranged on at least one marking structure.

19. The marking positioning device according to claim 17, characterized in that: The positioning part is a solid material that absorbs medical rays, a liquid material that absorbs medical rays, or a material that does not absorb medical rays.

20. The marking positioning device according to claims 1, 13 and 19, characterized in that: The device comprises: a bonding portion; One side of the adhesive layer is fixed to the supporting part, and the other side of the adhesive layer is used to fit and fix to the human skin surface corresponding to the target area.

21. The marking positioning device according to claim 20, characterized in that: The adhesive layer is provided with a guide channel corresponding to the position of the marking part and / or the positioning part on the support part; The liquid marking portion and / or positioning portion can reach the surface of human skin through the guiding channel.

22. The marking positioning device according to claim 1 or 20, characterized in that: The device comprises: a protection part; the protection part is used to be detachably connected to the side of the support part used to fit the surface of human skin or the side of the adhesive part used to fit the surface of human skin when the marking positioning device is not in use.

23. The marking positioning device according to claim 1, characterized in that: The supporting portion and / or marking portion is at least one of rectangular, half-moon or shuttle-shaped.

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