Positioning device for liver elasticity detection

Abstract

The utility model relates to a positioning device for liver elasticity detection, which comprises a first positioning block, a second positioning block and a moving block, and the first positioning block is fixed at a xiphoid position on the surface of a human body; the first positioning block and the second positioning block are connected through a first connecting piece, and the extending direction of the first connecting piece is perpendicular to the axillary center line of the human body; the moving block is connected with the first positioning block through a second connecting piece, the moving block is connected with the second positioning block through a third connecting piece, and the moving block, the first positioning block and the second positioning block form a triangular structure; or the moving block is positioned on the same horizontal plane of the first positioning block and the second positioning block. According to the positioning device provided by the embodiment of the utility model, the distance between the two positioning blocks is recorded after the patient finishes liver elasticity detection for the first time, and in subsequent examination, an operator only needs to place the two positioning blocks on the body surface of the patient according to the recorded distance, so that the placement position of the movable block can be quickly found out, and the deviation of an examination result is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical tools, and more specifically, to a positioning device for detecting liver elasticity. Background Technology

[0002] Liver elastography is a non-invasive ultrasound examination method that can better determine the degree of liver fibrosis and cirrhosis. Each patient requires multiple examinations and follow-ups during treatment; however, the location of the examination varies each time, leading to inaccurate results and making it difficult to accurately assess the patient's condition. Clinical studies have shown that differences in the examination location between different operators result in significant fluctuations in liver stiffness values, significantly impacting clinical judgment and affecting clinical treatment. Summary of the Invention

[0003] The purpose of this invention is to provide a positioning device for liver elasticity testing, in order to solve the problem that the test results will be deviated due to different locations selected for each test, which leads to an inability to accurately judge the patient's actual condition and affects clinical treatment.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A positioning device for detecting liver elasticity, comprising:

[0006] The first positioning block is fixed to the xiphoid process on the surface of the human body;

[0007] The second positioning block is fixed to the surface of the human body, and the first positioning block and the second positioning block are connected by a first connector, the extension direction of the first connector being perpendicular to the mid-axillary line of the human body.

[0008] The movable block is connected to the first positioning block via a second connector, and the movable block is connected to the second positioning block via a third connector. The movable block, the first positioning block, and the second positioning block form a triangular structure with the first positioning block, the second positioning block, and the movable block as vertices; or, the movable block is located on the same horizontal plane as the first positioning block and the second positioning block.

[0009] In one embodiment, the second positioning block is configured as a right-angle locator, and the first connector and the third connector are connected to the right-angle locator so that the first connector and the third connector are set at right angles.

[0010] In one embodiment, the first positioning block is fixed to the xiphoid process of the human body, the second positioning block is fixed at the mid-axillary line of the human body, and the first connector is perpendicular to the mid-axillary line.

[0011] In one embodiment, the first connector is made of plastic and has a scale with a minimum division value of 1 mm.

[0012] In one embodiment, the first connector is configured as a telescopic sleeve structure, and the first connector is provided with a length locking knob to fix the distance between the first positioning block and the second positioning block.

[0013] In one embodiment, the positioning block is provided with medical pressure-sensitive adhesive on the side closest to the human body surface.

[0014] In one embodiment, the movable block is provided with a through hole, and the second connector and the third connector are integrally formed, with the second connector and the third connector passing through the through hole, so that the movable block can move along the second connector and the third connector.

[0015] In one embodiment, the movable block is provided with a positioning hole, and the central axis of the positioning hole is on the same straight line as the central axis of the movable block.

[0016] In one embodiment, the second connector is provided with a scale, the smallest division of which is 1 mm; and / or, the third connector is provided with a scale, the smallest division of which is 1 mm.

[0017] In one embodiment, both the second connector connected to the first positioning block and the third connector connected to the second positioning block are provided with locking devices, which can automatically lock the second connector and the third connector.

[0018] As can be seen from the above technical solution, the present invention has at least the following advantages and positive effects compared with the prior art: The positioning device for liver elasticity testing in the embodiment of the present invention includes a first positioning block, a second positioning block, and a moving block. After the patient completes the liver elasticity test for the first time, the positioning device is used to record the distance between the two positioning blocks and the distance from the second positioning block to the moving block. In subsequent examinations, the operator only needs to place the first positioning block on the xiphoid process of the patient's body surface, and locate the second positioning block according to the distance between the first and second positioning blocks. Then, according to the distance between the moving block and the second positioning block, the position of the moving block can be quickly found, that is, the position of the patient's first liver elasticity test. By combining anatomical landmark positioning with geometric positioning, a stable coordinate system is established. Through standardized positioning procedures, the difference in detection positions between different operators is reduced, the accuracy of three-dimensional spatial position is achieved, and the deviation of examination results is reduced. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the overall structure of a positioning device for liver elasticity detection in one embodiment of the present invention;

[0021] Figure 2 for Figure 1 The diagram shows the usage status of the positioning device used for liver elasticity testing;

[0022] Figure 3 for Figure 1 The diagram shows a rear view of the positioning device used for liver elasticity testing.

[0023] Figure 4 for Figure 1 A schematic diagram of another embodiment of the positioning device for liver elasticity detection is shown.

[0024] Figure 5 for Figure 1 The diagram shows a structural schematic of another embodiment of the positioning device for liver elasticity detection.

[0025] The annotations in the attached figures are explained as follows:

[0026] 10. Positioning device; 100. First positioning block; 110. First connecting piece; 120. Medical pressure-sensitive adhesive; 200. Second positioning block; 300. Moving block; 310. Second connecting piece; 320. Third connecting piece; 330. Positioning hole; 340. Through hole; 341. First hole; 342. Second hole; A. Xiphoid process. Detailed Implementation

[0027] To more clearly explain the purpose, technical solution, and advantages of this utility model, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein. On the contrary, these embodiments are provided to make this utility model more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0028] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., may be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0029] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0030] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0031] The present invention will now be described in detail with reference to specific embodiments.

[0032] Example 1

[0033] First refer to Figure 1 This invention provides a positioning device 10 for liver elasticity testing, which is placed on the surface of the human body to quickly locate the liver position when the patient first undergoes liver elasticity testing. This ensures that the same position is selected for multiple examinations and follow-up examinations, reducing deviations in examination results due to different selected positions. The operator can accurately judge the patient's actual condition.

[0034] refer to Figure 1 and Figure 2 A positioning device 10 for liver elasticity detection includes a first positioning block 100, a second positioning block 200, and a movable block 300. The first positioning block 100 is fixed to the xiphoid process A on the surface of the human body. The first positioning block 100 and the second positioning block 200 are connected by a first connector 110. The extension direction of the first connector 110 is perpendicular to the mid-axillary line of the human body. The movable block 300 is connected to the first positioning block 100 through a second connector 310 and to the second positioning block 200 through a third connector 320. The movable block 300, the first positioning block 100, and the second positioning block 200 form a triangular structure with the first positioning block 100, the second positioning block 200, and the movable block 300 as vertices.

[0035] It should be noted that, since each patient's body structure is different, in other embodiments, the moving block 300 is located on the same horizontal plane as the first positioning block 100 and the second positioning block 200.

[0036] In summary, a positioning device 10 for liver elasticity testing includes a first positioning block 100, a second positioning block 200, and a moving block 300. After the patient's first liver elasticity test, the positioning device 10 is used to record the distance between the first positioning block 100 and the second positioning block 200, as well as the distance from the second positioning block 200 to the moving block 300. In subsequent examinations, the operator only needs to place the first positioning block 100 on the xiphoid process of the patient's body surface, locate the second positioning block 200 based on the distance between the first positioning block 100 and the second positioning block 200, and then quickly find the position of the moving block 300 based on the distance between the moving block 300 and the two positioning blocks. That is, find the position when the patient first underwent liver elasticity testing. By combining anatomical landmark positioning with geometric positioning, a stable coordinate system is established. Through standardized positioning procedures, the difference in detection positions between different operators is reduced, achieving accuracy in three-dimensional spatial positioning and reducing deviations in examination results. In addition, when patients use the positioning device 10 for liver elasticity testing, the testing time can be effectively reduced, as can the discomfort caused by the long testing time.

[0037] refer to Figure 1 and Figure 2 It should be noted that in this embodiment, the second positioning block is set as a right-angle locator, and the first connecting member 110 and the third connecting member 320 are connected to the right-angle locator so that the first connecting member 110 and the third connecting member 320 are set at a right angle. When performing the liver elasticity test for the first time, the lengths of the first connecting member 110 and the third connecting member 320 are recorded. In subsequent tests, the first positioning block 100 is first placed at the xiphoid process A, and then the position of the second positioning block 200 is determined according to the recorded length of the first connecting member 110. Then, the position of the moving block 300 is determined according to the lengths of the right-angle locator and the third connecting member 320.

[0038] It should be noted that the first connector 110 is made of plastic. Specifically, in this embodiment, the first connector 110 is made of plastic tube, which can not only conform to the shape of the human body, but also change the length, reduce the error of the first positioning block 100 and the second positioning block 200 in the xiphoid process and the mid-axillary line, and thus reduce the detection error of liver elasticity detection.

[0039] It should be noted that the first connector 110 is equipped with a scale, and the smallest division of the scale is 1mm.

[0040] It should be noted that the first connector 110 is configured as a telescopic sleeve structure, which includes a first tube and a second tube. The radial dimension of the first tube is larger than that of the second tube, and the first tube is fitted over the outside of the second tube. By configuring the telescopic sleeve structure, the positioning device 10 for liver elasticity testing can accommodate more patients. After the patient's first test, the operator must record the length of the first connector 110 for future use. It is understood that the first connector 110 may not be configured as a telescopic sleeve structure; any arrangement where the first positioning block 100 can be fixed at the xiphoid process A and the extension direction of the first connector 110 is perpendicular to the mid-axillary line should be protected.

[0041] It should be noted that the first connector 110 is equipped with a length locking knob. When the operator pulls the second tube and determines the position of the second positioning block 200 based on the length of the first connector 110 and the fact that the extension direction of the first connector is perpendicular to the midline of the armpit, the length locking knob automatically locks the first connector 110 to fix the distance between the first positioning block 100 and the second positioning block 200. It is understandable that the length locking knob may not be necessary; any solution that allows the distance between the first positioning block 100 and the second positioning block 200 to be fixed should be protected.

[0042] refer to Figure 3 It should be noted that in other embodiments, medical pressure-sensitive adhesive 120 is provided on the side of the first positioning block 100 and the second positioning block 200 closest to the human body surface. By providing the medical pressure-sensitive adhesive 120, the first positioning block 100 and the second positioning block 200 can be adhered to the human body surface without the patient needing to press and fix them themselves. This is convenient, and the medical pressure-sensitive adhesive 120 has no effect on the skin. It is understood that the medical pressure-sensitive adhesive 120 can also be omitted; any solution that allows the first positioning block 100 and the second positioning block 200 to be fixed to the human body surface should be protected.

[0043] refer to Figure 1 The movable block 300 is provided with a positioning hole 330. The central axis of the positioning hole 330 is aligned with the central axis of the movable block 300. The operator can use a marker or other tools to mark the patient's skin through the positioning hole 330, facilitating subsequent examinations. It is understandable that the positioning hole 330 could be omitted; any solution where the operator can locate the position after the movable block 300 is removed should be protected.

[0044] It should be noted that the second connector 310 is equipped with a scale to facilitate the operator in recording the distance between the moving block 300 and the first positioning block 100, which is convenient for positioning during the next inspection. It is understandable that the scale can be omitted, as long as the operator can know the distance between the moving block 300 and the first positioning block 100, the solution should be protected.

[0045] It should be noted that in this embodiment, the third connector 320 is also provided with a scale to facilitate the operator in recording the distance between the moving block 300 and the second positioning block 200, which is convenient for positioning during the next inspection. It can be understood that the scale may not be provided, and any solution that allows the operator to know the distance between the moving block 300 and the second positioning block 200 should be protected.

[0046] It should be noted that locking devices are provided at the points where the second connector 310 connects to the first positioning block 100 and the third connector 320 connects to the second positioning block 200. These locking devices automatically lock the second connector 310 and the third connector 320. After the first operation, the locking devices automatically lock the second connector 310 and the third connector 320, facilitating the operator's reading and recording of the distance between the moving block 300 and the first positioning block 100 and the second positioning block 200. During follow-up examinations, the operator can quickly lock the distance between the moving block 300 and the first positioning block 100 and the second positioning block 200, quickly locating the liver position as determined during the first operation, reducing patient examination time and discomfort caused by prolonged examinations. It is understandable that locking devices are not required; any scheme that allows the distance between the moving block 300 and the first positioning block 100 and the second positioning block 200 to be fixed should be protected.

[0047] Using the positioning device 10 for liver elasticity testing, firstly, fix the first positioning block 100 to the xiphoid process on the surface of the body and have the patient press the first positioning block 100 themselves. Then, based on the length of the first connector 110 and its perpendicularity to the mid-axillary line, fix the second positioning block 200 to the surface of the body. The length locking knob automatically locks the length of the first connector 110, and the patient presses the second positioning block 200 themselves. The operator then moves the moving block 300 based on the length of the third connector 320 and its perpendicularity to the first connector until the distance between the moving block 300 and the two positioning blocks is the same as the distance recorded during the first liver elasticity test. At this point, the locking device automatically locks the third connector 320. The operator can then use a marker or other tool to pass through the positioning hole 330 and mark the patient's skin. Subsequently, the probe can be used to examine the patient at the marked location.

[0048] Example 2

[0049] refer to Figure 4The positioning device 10 for liver elasticity testing in this embodiment is basically the same in structure as the positioning device 10 for liver elasticity testing in Embodiment 1. The difference is that the moving block 300 is provided with a through hole 340, and the second connecting member 310 and the third connecting member 320 are integrally formed. The second connecting member 310 and the third connecting member 320 pass through the through hole 340, allowing the moving block 300 to move along the second connecting member 310 and the third connecting member 320. After fixing the first positioning block 100 and the second positioning block 200, by moving the moving block 300 along the second connecting member 310 and the third connecting member 320 until it stops at the position recorded during the first test, the operator can quickly locate the position selected by the patient during the first liver elasticity test, which is convenient. It can be understood that the moving block 300 can also be set not to move along the second connecting member 310. Any scheme in which the moving block 300 can quickly locate the position selected during the first liver elasticity test should be protected.

[0050] refer to Figure 4 It should be noted that in this embodiment, the through hole 340 includes a first hole 341 and a second hole 342, and the first hole 341 and the second hole 342 are arranged at an angle.

[0051] Example 3

[0052] refer to Figure 5 The positioning device 10 for liver elasticity testing in this embodiment is basically the same in structure as the positioning device 10 for liver elasticity testing in Embodiment 1. The difference is that the first positioning block 100 is fixed at the xiphoid process A on the surface of the human body, and the second positioning block 200 is fixed at the intersection of the mid-axillary line and the xiphoid process. That is, when the first positioning block 100 and the second positioning block 200 are fixed on the surface of the human body, the extension line along the length direction of the first connecting member 110 is perpendicular to the mid-axillary line. After completing the first liver elasticity test using the positioning device 10 for liver elasticity testing in this embodiment, the lengths of the second connecting member 310 and the third connecting member 320 are recorded. In subsequent tests, the first positioning block 100 is first placed at the xiphoid process A, and then the second positioning block 200 is placed on the mid-axillary line, with the first connecting member 110 perpendicular to the mid-axillary line. Then, the position of the moving block 300 is determined according to the lengths of the second connecting member 310 and the third connecting member 320.

[0053] Example 4

[0054] The positioning device 10 for liver elasticity testing in this embodiment is basically the same in structure as the positioning device 10 for liver elasticity testing in Embodiment 1. The difference is that the first connecting member 110, the second connecting member 310, and the third connecting member 320 are all made of plastic film. The connection points of the first connecting member 110, the second connecting member 310, and the third connecting member 320 form an intersection point, which is the aforementioned first positioning block 100, the second positioning block 200, and the moving block 300. The plastic film is relatively soft and can conform to the shape of the human body. Furthermore, the positioning device 10 for liver elasticity testing can be made of plastic film with printed scales, which can effectively prevent the scales from fading after repeated use, thus preventing the scale lines from becoming illegible.

[0055] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims. It should be understood that the invention is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A positioning device for detecting liver elasticity, characterized in that, include: The first positioning block is fixed to the xiphoid process on the surface of the human body; The second positioning block is fixed to the surface of the human body, and the first positioning block and the second positioning block are connected by a first connector, the extension direction of the first connector being perpendicular to the mid-axillary line of the human body. The movable block is connected to the first positioning block via a second connector, and the movable block is connected to the second positioning block via a third connector. The movable block, the first positioning block, and the second positioning block form a triangular structure with the first positioning block, the second positioning block, and the movable block as vertices; or, the movable block is located on the same horizontal plane as the first positioning block and the second positioning block.

2. The positioning device for liver elasticity detection according to claim 1, characterized in that, The second positioning block is configured as a right-angle positioner, and the first connecting member and the third connecting member are connected to the right-angle positioner so that the first connecting member and the third connecting member are set at right angles.

3. The positioning device for liver elasticity detection according to claim 1, characterized in that, The first positioning block is fixed to the xiphoid process of the human body, the second positioning block is fixed at the mid-axillary line of the human body, and the first connecting piece is perpendicular to the mid-axillary line.

4. The positioning device for liver elasticity detection according to claim 1, characterized in that, The first connector is made of plastic and has a scale with a minimum division value of 1 mm.

5. The positioning device for liver elasticity detection according to claim 4, characterized in that, The first connector is configured as a telescopic sleeve structure, and the first connector is provided with a length locking knob to fix the distance between the first positioning block and the second positioning block.

6. The positioning device for liver elasticity detection according to claim 1, characterized in that, The positioning block has a medical pressure-sensitive adhesive on the side closest to the human body surface.

7. The positioning device for liver elasticity detection according to claim 1, characterized in that, The movable block is provided with a through hole, and the second connector and the third connector are integrally formed. The second connector and the third connector pass through the through hole, so that the movable block can move along the second connector and the third connector.

8. The positioning device for liver elasticity detection according to claim 1, characterized in that, The movable block is provided with a positioning hole, and the central axis of the positioning hole is on the same straight line as the central axis of the movable block.

9. The positioning device for liver elasticity detection according to claim 1, characterized in that, The second connector is provided with a scale, the smallest division of which is 1 mm; and / or the third connector is provided with a scale, the smallest division of which is 1 mm.

10. The positioning device for liver elasticity detection according to claim 9, characterized in that, Both the second connector connected to the first positioning block and the third connector connected to the second positioning block are equipped with locking devices, which can automatically lock the second connector and the third connector.

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