CN210749529U - Body surface developing sheet for tomography - Google Patents

Abstract

The utility model discloses a body surface development piece for tomography, the basic unit that constitutes by a plurality of development piece that have development image difference and outward appearance difference is circulated and is connected and form, fixes at the user body surface through pad pasting or tie up the area. After the user performs image examination such as CT or MRI and the like, the spatial relationship between each developing piece and the target in the body can be conveniently identified on the CT or MRI sheet, and the developing piece can be conveniently found on the body surface of the user, so that the accurate positioning of the target is realized, and the operations such as puncture and the like of the target are convenient. The utility model discloses simple structure, convenient to use, easy operation, the accuracy is high, full play CT and MRI's accurate advantage.

Description

Body surface developing sheet for tomography

Technical Field

The utility model relates to a medical instrument especially relates to a body surface development piece for tomography.

Background

Many diagnoses and treatments such as tissue biopsy, minimally invasive surgery, internal drainage and the like need to be performed with human body puncture operation, including: lumbar puncture, abdominal puncture, lung puncture, kidney puncture, liver puncture, prostate puncture, brain tissue puncture and the like, but how to puncture to a target tissue accurately is a difficult problem.

At present, in the conventional puncture operation, the puncture location is usually performed by using B-ultrasonic, CT or MRI and other imaging devices. During positioning, the position of the focus is measured on one anatomical layer of human body with the help of instrument, the position of the focus and the skin positioning point and the depth of the puncture needle are measured on the layer, and then the optimal needle inserting position and needle inserting angle are selected on the layer. However, in actual operation, the puncture angle often needs to be flexibly adjusted, and three-dimensional positioning puncture needs to be performed across different image layers.

Although B-mode ultrasound can flexibly adjust the image level, the image is fuzzy, and the puncture location requires a surgeon to have certain ultrasound knowledge, so that the application of the ultrasound is limited. X-rays have radioactivity, CT and MRI equipment are huge and expensive, CT has radioactivity, MRI prohibits all ferromagnetic metals from approaching, and puncture surgery in a CT and MRI machine room is required, so that the sterile requirement of an operating room is difficult to meet. After leaving the CT and MRI machine room, the shot image layer is difficult to flexibly adjust according to the puncture angle requirement, which is far from enough for the human tissue with complex space structure.

A conventional body surface developing sheet for tomographic scanning is disclosed in 'an X-ray positioning film assembly and a method for manufacturing the same' having application No. 201310218658.5, which comprises a film permeable to X-rays and filaments impermeable to X-rays, the filaments being arranged in a regular pattern and embedded in the film. The positioning film cannot be used as a developing strip for CT or MRI tomography, and cannot identify the three-dimensional coordinates of a target. The developed image of the X-ray opaque filament is dots of the same size during tomography, and the dots cannot be directly determined as the second layer when a plurality of dots are arranged, and it is difficult to determine as the second layer.

In practice, the user's body surface will undulate if the developing device, which has been fixed to the user's body surface, is not perfectly parallel or perfectly perpendicular to the scanning plane. Line crossing occurs during tomography, namely, a point appearing on the next layer is scanned in advance, but only one point can be seen during film reading, which layer cannot be judged, diversified display and difference identification of a developing piece cannot be achieved, and positioning deviation occurs.

SUMMERY OF THE UTILITY MODEL

The utility model provides a body surface development piece for tomography can realize the accurate positioning of target tissue at CT and the three-dimensional coordinate of discernment target in the MRI inspection, and used device simple structure, with low costs, location are accurate.

For solving the technical problem, the utility model discloses the technical scheme who adopts as follows:

a body surface developing sheet for tomographic scanning, characterized in that: comprises a positioning layer consisting of a plurality of regularly arranged developing parts; the developing parts on the positioning layer are arranged in rows and columns, and two or more adjacent developing parts in the rows and/or the columns form a basic unit circulation arrangement; the line spacing of the developing pieces is the same; the row spacing of the developing pieces is the same; the developing members in the same basic unit have developed image difference and appearance difference.

Further, the device also comprises a connecting piece; the connecting piece is a rope or a connecting rod or a strip-shaped piece embedded in the connecting rod or viscose glue; the connecting pieces form a grid, the grid is a bar grid or a square grid, and the distance between the bar grid or the square grid is 1-20 mm; the development pieces are arranged on the rows and columns of the grids at equal intervals, and the distance is 0-20 mm. The rope comprises a wire or a metal wire or a plastic wire mixed with metal. The connecting rod comprises a soft rod and a hard rod. The rope or the link may connect the plurality of developing members through the hole in the middle of the developing members. The strip-shaped piece with the embedded position comprises a strip-shaped piece with an embedded groove and a strip-shaped piece with an embedded hole, the developing piece can be directly embedded into the strip-shaped piece without punching, and also can be scratched down and respectively stored, and can be reassembled as required during use.

In one non-limiting embodiment, a plurality of developing members are adhesively arranged on an adhesive strip. In another non-limiting embodiment, multiple developer members are directly adhered to one another or cast into an integral grid without the use of a connecting member.

Further, the developing member contains a developing material; the developing material is an X-ray developing material and/or a nuclear magnetic resonance developing material. The developer material is a solid or a liquid enclosed in a container. The material capable of developing by X-ray is solid metal wire, and can also be glass, plastic or rubber containing metal salt powder. The liquid developing material such as compound diatrizoate and iodohydrin iodide solution can be packaged in a catheter or a capsule. When the MRI examination is used, the developing strip preparation material includes nuclear magnetic resonance developing material, including maguey, grease, etc., and preferably cheap cod liver oil.

Further, the developed image variation includes developed image variation in shape and/or developed image variation in color. The appearance difference comprises the shape difference of the developing part and/or the surface identification difference of the developing part. When reading the film, the target tissue can be found first, the developing image projected on the body surface by the target tissue is identified as the second developing piece of which basic unit, and then the corresponding developing piece is directly found on the body surface of the user.

The developed image is formed on the cross section of the developing member during the cross-sectional scanning, and the shape of the developed image is different from that of the developing member. For example, the shape of the developing member is, in order: hemisphere, spheroid, regular tetrahedron, regular octahedron and pipe, its development image shape is in proper order: semi-circular, triangular, quadrilateral, and annular.

Or the developing part is processed into a semi-tube shape, a semi-sphere shape, a sphere shape and a small sphere, so that the developing projection is a semi-ring shape, a semi-circle shape, a right circle shape and a central point in sequence. Or the developing piece is formed by arranging developing wires with different numbers in parallel, wherein the numbers of the developing wires are respectively as follows: one, two, three, four and five, the developed images are in order: one point, two points, three points, four points, and five points.

The developing member with the developed image having the difference in color includes a developing member with the difference in the kind of the developing material and a developing member with the same kind of the developing material but the difference in the concentration. Different materials may show different gray levels on the tomographic image, for example, common plastics do not develop and show a black background. However, metals are usually developed to be white. The intermediate grey color will be obtained after the metal powder is incorporated into the plastic. The high-concentration iodophor containing 320mg of iodine per milliliter and the low-concentration iodophor containing 32mg of iodine per milliliter have more obvious mark points formed by the lower-concentration iodophor when the high-concentration iodophor is used for CT tomography because of different iodine-containing concentrations. The iodohydrin liquid with different concentrations is packaged in a spherical plastic container with the same size to prepare a developing piece, and the surface of the developing piece is coated with corresponding colors for distinction.

When the developing image is positioned during film reading, the entity of the developing piece needs to be found on the body surface of a user, and the developing piece needs to have appearance difference with the developing piece in the same basic unit and can be directly distinguished by naked eyes. Such as differences in the shape or color of the development member or a different number of markings on the surface.

For aesthetic reasons, all the developed images are wrapped in a cylindrical shape with the same shape by an opaque plastic shell, and still show different developed image shapes when being subjected to tomography. The cylinder is 0.5-20 mm in thickness, and the cross section is 0.5-20 mm in diameter circular. The cylinders with the same shape are strung together to ensure the same distance, the style is beautiful, and no edges and corners bring discomfort. The developing materials with different shapes enclosed inside can be distinguished from each other during tomography.

The overall color of the plastic, the plastic mixed with the metal powder and the metal on the black CT sheet is dark gray, gray and light gray in sequence, and the plastic, the plastic mixed with the metal powder and the metal can be directly made into cylinders with the same size, and the surfaces of the cylinders respectively represent the corresponding dark gray, gray and light gray. The material is not limited to the above-mentioned materials, and may be: the surfaces of the glass, the solid glass mixed with barium sulfate and the glass capsule wrapped with barium sulfate are marked with coils in different numbers or points in different numbers like dices.

Further, the body surface developing sheet for tomography is characterized in that: also comprises an adhesive layer and a paper film. A sticking layer is arranged below the positioning layer; a paper film is arranged below the sticking layer; the positioning layer, the sticking layer and the paper film are combined into a three-layer positioning paste. Or the elastic belt and the buckle belt are used for fixing instead of the adhesive layer.

When the positioning layer is used, after the paper film is torn off from the body surface developing sheet for tomography, the positioning layer is adhered to the body surface where the target tissue is located by the adhering layer and at least comprises one surface of the front surface and the back surface of a user and one surface of the left side surface and the right side surface of the user. When the developing strip is pasted, the developing strip is parallel to the long axis of the user body. When a picture is taken under CT or MRI, the target tissue can be positioned according to the developing strip attached to the positioning of the body surface.

Further, the arrangement sequence of adjacent developing parts on the positioning layer in rows and columns is the same. Therefore, the developing parts are regularly arranged, and the positions of the developing parts in rows and columns can be conveniently judged.

The technology not mentioned in the present invention refers to the prior art.

The utility model discloses a body surface development piece for tomography, the basic unit that constitutes by a plurality of development piece that have development image difference and outward appearance difference is circulated and is connected and form, fixes at the user body surface through pad pasting or tie up the area. After the user performs image examination such as CT or MRI and the like, the spatial relationship between each developing piece and the target in the body can be conveniently identified on the CT or MRI sheet, and the developing piece can be conveniently found on the body surface of the user, so that the accurate positioning of the target is realized, and the operations such as puncture and the like of the target are convenient. The utility model discloses simple structure, convenient to use, easy operation, the accuracy is high, full play CT and MRI's accurate advantage.

Drawings

FIG. 1 is a schematic view showing the structure of a body surface developing sheet for tomographic scanning in example 1;

FIG. 2 is a schematic view of a developing member having a difference in shape in a body surface developing sheet for tomographic scanning in example 1

FIG. 3 is a schematic view showing a structure in which the volume-display members are arranged in rows or columns in example 1;

FIG. 4 is a schematic view of a developed image of a body surface developing sheet for tomographic scanning in a scanned image in example 1;

FIG. 5 is a schematic view of a developing spacer having a difference in surface identification of the developing member in example 2;

FIG. 6 is a schematic view of a developed image of a developed strip having a difference in surface identification of the developed member in example 3;

FIG. 7 is a schematic view of a developed image of a differential developed image strip in example 4;

FIG. 8 is a schematic view of a developed image of a developing strip in which a connecting member is a fitting groove in example 5;

FIG. 9 is a schematic illustration of a developed image of a differential color developed image strip of example 5;

wherein, 1-developing part, 2-connecting part, 3-perforation, 4-basic unit, 5-marking color, 6-marking ring, 7-developing image, 8-cross section, 9-body surface, 10-plastic ball, 11-plastic ball mixed with aluminum powder, 12-aluminum ball, 13-positioning layer, 14-sticking layer and 15-paper film.

Detailed Description

For a better understanding of the present invention, the following examples are provided to further illustrate the present invention, but the present invention is not limited to the following examples.

Example 1

As shown in fig. 1 and 2, the body surface developing sheet for tomography includes a positioning layer composed of a plurality of regularly arranged developing members, the developing members on the positioning layer are arranged in rows and columns, adjacent 5 developing members in each row and/or each column form a basic unit circulation arrangement, and the row spacing and the column spacing of the developing members are the same.

The 5 developing parts in the same basic unit are cylinders with the same height and different shapes, and the cross sections of the developing parts are as follows in sequence: oval, perfect circle, triangle, quadrilateral, and pentagon.

The developing material is barium sulfate powder, the barium sulfate powder is mixed into molten plastic and stirred uniformly, the mixture is processed into the shape in figure 2, the thickness of the developing part 1 is 5mm, and the diameter of the circumscribed circle of the cross section 8 is 2.5 mm. The middle of the body surface is provided with a perforation 3, and the body surface is formed into a string bead shape by connecting metal wires in series according to the sequence shown in figure 1, namely, the body surface is formed into a body surface developing strip for arranging rows or columns, and the length is 200 mm.

As shown in FIG. 3, the prepared body surface development strips were arranged in parallel at intervals of 5mm on an adhesive layer 14 on a 500mm long and 300mm wide medical double-sided adhesive tape to prepare a positioning layer 13 of a body surface development sheet for tomography. The development bars are arranged as shown in fig. 1, and the development cross section 8 from left to right of the adjacent development members 1 is also: oval, perfect circle, triangle, quadrilateral, and pentagon.

The paper film 15 is torn off from the double-sided adhesive tape, and the other side of the pasting layer 14 is pasted on the body surface of the user to be positioned, so that the developing strip is parallel to the central axis of the body of the user as much as possible. The positioning paste covers the front surface and the left side surface of a user. The user lies horizontally under the CT light machine, the longitudinal axis of the body is parallel to the longitudinal axis of the examination bed, and the tomography of the horizontal plane of the human body is performed by the layer thickness of 5 mm.

As shown in fig. 4, the CT scans the object while scanning the surface developing sheet for tomography. The developing strips attached to the body surface of a user in each CT image are all intersected, developing points are arranged at intervals of 5mm, and the shapes of the adjacent developing points are oval, regular circle, triangle, quadrangle and pentagon in sequence. One cycle every 25 mm.

The shape of the first developing point from the left in the first layer to the fifth layer CT images is oval, perfect circle, triangle, quadrangle and pentagon in sequence, and one cycle is performed every 5 layers. Since the layer thickness is 5mm, the longitudinal position of the human body is determined from the shape of the first development point from the left in the image.

As can be seen from the tomographic image of fig. 4 by vertical and horizontal measurements, the projection of the circular target on the front surface is the 8 th developing member 1 from the left, the projection on the left side surface is 5 developing members 1 apart from the highest developing member 1, and the position in the longitudinal direction of the human body is a layer where the first developing point is triangular from the left. It is further known which layer is specific based on specific markers on the CT image.

After CT film shooting is completed, the body surface developing film for tomography still remains on a user body, the user is brought to a punctured room, the user is made to lie down in a posture during film shooting, the 8 th developing part 1 from the left and the first developing point from the left of the front surface of the body surface developing film for tomography are projected points of the triangular positioning front surface, 5 developing parts 1 are spaced at the highest distance from the developing part 1 on the left side of the body surface developing film for tomography, and the projected points of the positioning left side of the layer with the first developing point from the left being triangular.

In the embodiment, the target is directly punctured at the body surface projection point at an angle vertical to the body surface, and the puncturing depth can be measured from the CT film.

In one non-limiting embodiment, the puncture is performed under B-mode ultrasound or X-ray assisted monitoring to avoid collateral damage. The puncture angle and the depth of the needle can be calculated by trigonometric functions.

Example 2

As shown in fig. 5 and 6, this embodiment is similar to embodiment 1 except that a non-developing material is used as the casing, five developing members 1 in the embodiment are all wrapped into a cylinder having the same shape, the cylinder has a thickness of 5mm, and the cross section 8 is a circle having a diameter of 2.5 mm. The same cylinder cluster of shape can guarantee that the interval all is 5mm, and the pattern is pleasing to the eye, and no edges and corners brings the discomfort. The exterior is distinguished by a number of identification rings which are different.

Example 3

As shown in fig. 7, this embodiment is similar to embodiment 2 except that all the developing members are cylindrical with the same shape, but have different special-shaped cavities inside, and the liquid developing material is injected into the cavities to form a special developing section. The developed images 7 of the five developing members 1 are, in order: oval, circular, semi-circular, and annular dot.

Example 4

As shown in fig. 8 and 9, the basic unit 4 of the body surface developing sheet is constituted by three adjacent spherical developing members 1 of the same size. The developing material is aluminum, a small amount of aluminum powder is mixed into the molten plastic and stirred evenly, and spheres with the diameter of 5mm are processed, wherein each sphere contains about 50mg of aluminum powder. In addition, partially plastic and fully aluminum balls were reprocessed, both 5mm in diameter. The surfaces of the aluminum balls 12, the plastic balls 11 mixed with aluminum powder and the plastic balls 10 have identification colors 5 of red, yellow and white, respectively. On the tomographic image, the development gray scales of the three kinds of balls are also reduced in sequence.

The connecting piece 2 is a silica gel soft strip with the width of 10mm, the thickness of 8mm and the length of 200mm, three-fifths of round balls with the diameter of 5mm are sunken every 10mm, and the three round balls can be conveniently embedded or scratched. The three balls are connected in series on the strip in sequence to form a bead shape, and the sequence is as follows: plastic balls 10, plastic balls 11 mixed with aluminum powder, and aluminum balls 12. The obtained body surface developing sheet for tomography has a length of 200 mm.

Perforating 3 holes at two ends of 50 prepared body surface developing sheets for tomography, connecting the sheets in series into a bamboo slip shape by silk threads, arranging the sheets in parallel at intervals of 10mm to prepare a body surface developing device for tomography, and installing elastic bands at two sides of the device to bind on a user. The medical procedure was performed as in the first example.

Example 5

This example is similar to example 4 except that the developing material is iodohydrin, encapsulated in a hollow plastic of 5mm diameter. The three developing balls respectively contain: the high-concentration iodophor alcohol contains 320mg of iodine per milliliter, and the low-concentration iodophor alcohol contains 32mg of iodine per milliliter and pure water. The marker points formed by the high-concentration iodophor alcohol during CT tomography are more obvious than the marker points formed by the lower-concentration iodophor alcohol.

Example 6

This example is similar to example 5, except that in this example the user performs MRI using materials that are clearly visualized during MRI. The hollow plastic ball is internally packaged in sequence as follows: cod liver oil, cod liver oil emulsion mixed with water, and purified water. Where water appears as a low signal on the T1 weighted image and cod liver oil appears as a high signal on the T1 weighted image, both of which are differentiated by the apparent visualization on MRI examination.

Claims (10)

1. A body surface developing sheet for tomographic scanning, characterized in that: comprises a positioning layer consisting of a plurality of regularly arranged developing parts; the developing parts on the positioning layer are arranged in rows and columns, and two or more adjacent developing parts in the rows and/or the columns form a basic unit circulation arrangement; the line spacing of the developing pieces is the same; the row spacing of the developing pieces is the same; the developing members in the same basic unit have developed image difference and appearance difference.

2. A body surface developing sheet for tomographic scanning according to claim 1, wherein: the developing device also comprises a connecting piece, wherein the connecting piece is used for connecting the developing piece, and the connecting piece is a rope or a connecting rod or viscose or a strip with an embedded position.

3. A body surface developing sheet for tomographic scanning according to claim 1, wherein: the developing member contains an X-ray developing material and/or a nuclear magnetic resonance developing material.

4. A body surface developing sheet for tomographic scanning according to claim 3, wherein: the X-ray developing material comprises metal, metal salt and iodide; the nuclear magnetic resonance developing material comprises grease and paramagnetic metal salt.

5. A body surface developing sheet for tomographic scanning according to claim 1, wherein: the developed image differences include developed image shape differences and/or developed image color differences.

6. The body surface visualization strip for tomographic scanning as recited in claim 5, wherein: five developing parts are arranged in the basic unit, and the shapes of the developed images of the five developing parts are as follows in sequence: semi-circular, triangular, quadrilateral, and annular.

7. The body surface visualization strip for tomographic scanning as recited in claim 1, wherein: the appearance difference comprises the shape difference of the developing part and/or the surface identification difference of the developing part.

8. The body surface visualization strip for tomographic scanning as recited in claim 7, wherein: five developing pieces are arranged in the basic unit, and the surface marks of the five developing pieces are as follows in sequence: red, yellow, green, blue and violet.

9. A body surface developing sheet for tomographic scanning according to claim 1, wherein: the arrangement sequence of adjacent developing parts on the positioning layer in rows and columns is the same.

10. A body surface developing paste is characterized in that: the body surface developing paste is provided with a body surface developing sheet for tomography, which comprises the structure of any one of claims 1 to 9, and further comprises a fixing piece for fixing the developing sheet on the body surface, wherein the fixing piece is positioned at the bottom of the developing sheet, and the fixing piece is viscose or a strap.

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