Angle measuring tool for tissue model

Abstract

The utility model relates to the field of medical imaging and DSA clinical technology, and discloses a tissue model angle measuring tool which comprises a support. The first rotary table is rotationally connected to the support through a first rotary shaft, and a first angle sensor coaxial with the first rotary shaft is arranged on the first rotary table; the mounting frame is rotationally connected to the support through a second rotating shaft, the second rotating shaft is perpendicular to the first rotating shaft, a second angle sensor coaxial with the second rotating shaft is connected to the mounting frame, a second rotary table is further rotationally arranged on the mounting frame, the tissue model is detachably connected to the second rotary table, and the second rotary table is in transmission connection with the first rotary table through a transmission part. The first rotating shaft, the rotating axis of the second rotating table and the second rotating shaft intersect at a preset point. And by carrying out space angle measurement on the attitude required by the tissue model, the obtained numerical value of the required projection angle in the DSA is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of medical imaging and DSA clinical practice, in particular to a tool for measuring the angle of a tissue model. Background Art

[0002] Conventional interventional surgery, after relevant examinations before surgery, obtains data on the corresponding tissues and organs such as angles, diameters, sizes, and optimal projection angles to formulate preoperative plans and guide intraoperative treatment. Among them, the above data are mainly measured by imaging (CT, MRI) at a single or several levels, or measured after processing with professional computer software. However, due to the fact that blood vessels are often irregular bodies, the surfaces are mostly irregular curved surfaces, involving multiple levels, and the amount of data is large, the above data are mostly difficult to measure. Therefore, the accuracy of the results obtained by using a small number of imaging levels is often lacking; and the measurement after processing with professional software often requires expensive computer professional software, as well as the cooperation of radiologists or computer engineers, which has high requirements for computer operation, a long learning cycle for clinical physicians, and a high threshold for operation. In response to the above problems, in the prior art, 3D printing technology is used to print the data model into a physical model, and then through observation and measurement of the physical model, relevant data such as diameter, size, volume, angle, position and other information are obtained to assist in formulating surgical plans and planning intraoperative details. Then, by applying the spatial angle change of the solid tissue model when it changes from a certain spatial posture to another spatial posture, the spatial angle change is obtained and converted into a projection angle under DSA for guiding surgery. In interventional surgery, the anatomical morphology of the region of interest can be optimized. However, in existing devices, a single inclination sensor is used to measure the angle change in at least two directions, which has a certain measurement error, affecting the formulation of preoperative planning and the accuracy of guidance of intraoperative operations.

[0003] Therefore, there is an urgent need for a tissue model angle measurement tool to solve the above problems. Utility Model Content

[0004] Based on the above, the purpose of the utility model is to provide a tissue model angle measurement tool with high angle measurement accuracy, so that the projection angle required by DSA can be measured more accurately.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A tissue model angle measurement tool comprises a bracket, a first turntable and a mounting frame, wherein the first turntable is rotatably connected to the bracket via a first rotating shaft, and a first angle sensor coaxial with the first rotating shaft is provided on the first turntable; the mounting frame is rotatably connected to the bracket via a second rotating shaft, the second rotating shaft is perpendicular to the first rotating shaft, a second angle sensor coaxially arranged with the second rotating shaft is connected to the mounting frame, a second turntable is also rotatably provided on the mounting frame, the tissue model is detachably connected to the second turntable, the second turntable can rotate synchronously with the first turntable, and the rotation axes of the first rotating shaft, the second turntable and the second rotating shaft intersect at a preset point.

[0007] As a preferred solution for a tissue model angle measurement tool, the second turntable is connected to the first turntable via a transmission member, and the transmission member includes a flexible shaft, one end of the shaft is connected to the first turntable, and the other end is connected to the second turntable.

[0008] As a preferred solution of a tissue model angle measurement tool, the second rotating shaft includes a damping rotating shaft, and the mounting frame is rotatably connected to the bracket via the damping rotating shaft.

[0009] As a preferred solution for the organizational model angle measurement tool, it also includes:

[0010] The first driving member is drivingly connected to the first rotating shaft to drive the first rotating table to rotate.

[0011] As a preferred solution for the organizational model angle measurement tool, it also includes:

[0012] The second driving member is drivingly connected to the second rotating shaft to drive the mounting frame to rotate.

[0013] As a preferred solution for an organizational model angle measurement tool, the bracket includes a support and a support frame body, the support frame body is arranged on the support, the first turntable is rotatably connected to the support frame body via the first rotating shaft, the support frame body is symmetrically structured with the first rotating shaft as the symmetry axis, the mounting frame is rotatably connected to the support frame body via the second rotating shaft, and the mounting frame is symmetrically structured with the rotation axis of the second turntable as the symmetry axis.

[0014] As a preferred solution for the tissue model angle measurement tool, two second rotating shafts are provided, the two second rotating shafts are located on the same straight line, and both ends of the mounting frame are rotatably connected to the support frame body through a second rotating shaft respectively.

[0015] As a preferred solution of a tissue model angle measurement tool, a mounting groove is provided on the second turntable, and the support legs of the tissue model are detachably plugged into the mounting groove.

[0016] As a preferred solution of a tissue model angle measurement tool, a positioning piece is provided on the second turntable, and the positioning piece is used to fix the support legs of the tissue model.

[0017] As a preferred solution for the organizational model angle measurement tool, it also includes:

[0018] The second angle sensor is arranged on the mounting plate, and two connecting arms arranged relatively spaced apart from each other extend from one end of the mounting plate, and the two connecting arms are respectively connected to the opposite sides of the mounting frame.

[0019] The beneficial effects of the utility model are:

[0020] The utility model provides a tissue model angle measurement tool, which includes a bracket, a first turntable and a mounting frame. By detachably connecting the tissue model to the second turntable, the angle measurement of different tissue models can be performed, and the observation angle of the tissue model can be adjusted by rotating the mounting frame and the first turntable. The first angle sensor and the second angle sensor respectively measure the rotation angles in two directions to obtain accurate observation angle data, which is convenient for more accurate quantification of the projection angle under DSA and preoperative planning, and can reduce the number of intraoperative angiography, reduce the use of contrast agents, shorten the exposure time under intervention, reduce intraoperative radiation damage, and improve surgical safety. At the same time, the first angle sensor is arranged on the first turntable, and the first turntable drives the second turntable to rotate, so that when the second turntable rotates around the second rotation axis, the first angle sensor can also measure the rotation angle of the second turntable rotating around its own axis, and the measurement accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 It is a structural schematic diagram of a tissue model angle measurement tool provided by an embodiment of the utility model;

[0023] Figure 2 This is a partial structural diagram of the tissue model angle measurement tool provided by the embodiment of the utility model Figure 1 (Scaffold and tissue model not shown);

[0024] Figure 3This is a partial structural diagram of the tissue model angle measurement tool provided by the embodiment of the utility model Figure 2 (The first and second turntables are not shown).

[0025] In the figure:

[0026] 1. Bracket; 11. Support; 12. Support frame; 2. First turntable; 3. First angle sensor; 4. Mounting frame; 5. Second rotating shaft; 6. Second angle sensor; 7. Second turntable; 70. Mounting slot; 8. Mounting plate; 9. Tissue model. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0031] like Figures 1 to 3 As shown, this embodiment provides a tissue model angle measurement tool, which includes a bracket 1, a first turntable 2 and a mounting frame 4, wherein the first turntable 2 is rotatably connected to the bracket 1 via a first rotating shaft, wherein the extension direction of the first rotating shaft is as follows Figure 1 In the Z-axis direction, the first turntable 2 is provided with a first angle sensor 3 coaxial with the first rotation axis, and the mounting frame 4 is rotatably connected to the bracket 1 through the second rotation axis 5, wherein the extension direction of the second rotation axis 5 is as follows: Figure 1 In the X-axis direction shown, the second rotating shaft 5 is perpendicular to the first rotating shaft; the mounting frame 4 is connected to a second angle sensor 6 coaxially arranged with the second rotating shaft 5, and the mounting frame 4 is also rotatably provided with a second turntable 7, and the tissue model 9 is detachably connected to the second turntable 7, wherein the tissue model 9 is made by 3D printing, and the tissue model 9 is, for example, a blood vessel model; the second turntable 7 can rotate synchronously with the first turntable 2, and the rotation axis of the first rotating shaft, the second turntable 7 and the second rotating shaft 5 intersect at a preset point. The point where the first rotating shaft, the rotation axis of the second turntable 7 and the second rotating shaft 5 intersect is Figure 1 The origin of the coordinate system shown in , by detachably connecting the tissue model 9 to the second turntable 7, the initial angle measurement of different tissue models 9 can be performed, and the observation angle of the tissue model 9 can be adjusted by rotating the mounting frame 4 and the first turntable 2, and the rotation angles in two directions are measured by the first angle sensor 3 and the second angle sensor 6, respectively, so that the rotation angle of the tissue model 9 around the Z axis and the rotation angle around the X axis can be obtained, and accurate observation angle data of different required postures can be obtained, which is convenient for quantifying the projection angle of interventional surgery and preoperative planning, and can reduce the number of intraoperative angiography, reduce the use of contrast agents, shorten the exposure time under intervention, reduce intraoperative radiation damage, and improve surgical safety. At the same time, by setting the first angle sensor 3 on the first turntable 2, the first turntable 2 drives the second turntable 7 to rotate, so that after the second turntable 7 rotates around the second rotation axis, the first angle sensor 3 can also measure the rotation angle of the second turntable 7 around its own axis, and the measurement accuracy is high.

[0032] In this embodiment, the tissue model angle measurement tool also includes a display screen, and the first angle sensor 3 and the second angle sensor 6 are connected to the display screen in communication, and the values ​​of the first angle sensor 3 and the second angle sensor 6 are displayed on the display screen, which is convenient for direct reading and recording. The display screen can be connected to the first angle sensor 3 and / or the second angle sensor 6 by wires or wirelessly.

[0033] Preferably, the second turntable 7 is connected to the first turntable 2 through a transmission member, so that when the first turntable 2 rotates, the second turntable 7 is driven to rotate synchronously. Exemplarily, the transmission member includes a flexible shaft (not shown in the figure), one end of the shaft is connected to the first turntable 2, and the other end is connected to the second turntable 7. The setting of the flexible shaft enables the rotation of the first turntable 2 to drive the second turntable 7 to rotate synchronously, while not affecting the rotation of the mounting frame 4 around the X-axis direction. The flexible shaft is relatively light in texture and has a better transmission effect, so that the first turntable 2 and the second turntable 7 have a higher degree of synchronous rotation, the shaft angle changes, and the transmission is accurate; the service life is long and has good wear resistance. Of course, in other embodiments, the synchronous rotation of the second turntable 7 and the first turntable 2 can also be achieved by other means, such as by electrically driving the second turntable 7 and the first turntable 2 to rotate simultaneously, and the rotation angles are consistent.

[0034] Specifically, the bracket 1 includes a support 11 and a support frame body 12. The support frame body 12 is arranged on the support 11. The first turntable 2 is rotatably connected to the support frame body 12 through the first rotating shaft. The support frame body 12 is symmetrically structured with the first rotating shaft as the symmetry axis. The mounting frame 4 is rotatably connected to the support frame body 12 through the second rotating shaft 5. The mounting frame 4 is symmetrically structured with the rotation axis of the second turntable 7 as the symmetry axis. The support 11 is used to support on a desktop or operating table. The support 11 can be selected but not limited to a tripod support 11; the support frame body 12 provides support and installation for the first turntable 2 and the mounting frame 4. The symmetrical structure of the support frame body 12 and the mounting frame 4 makes the force of the tissue model angle measurement tooling more uniform, so that the tissue model 9 is more stable and accurate when rotating, thereby improving the angle measurement accuracy and the reliability of the use of the tissue model angle measurement tooling.

[0035] Exemplarily, the support frame 12 is U-shaped, the mounting frame 4 is also U-shaped, the mounting frame 4 is located inside the support frame 12 and is arranged parallel to the support frame 12, the first turntable 2 is rotatably connected to the center of the support frame 12 via the first rotating shaft, and the second turntable 7 is rotatably connected to the center of the mounting frame 4, that is, at a certain position, the second turntable 7 is located directly above the first turntable 2 in the Z-axis direction, and the second turntable 7 is driven to rotate by the first turntable 2. The first angle sensor 3 measures the rotation angle of the first turntable 2, which can represent the rotation angle of the second turntable 7 around its own axis. The first turntable 2 and the second turntable 7 have better rotation synchronization and higher angle measurement accuracy. Of course, in other embodiments, the support frame 12 and the mounting frame 4 can also be in other shapes, for example, the support frame 12 and the mounting frame 4 are V-shaped or other shapes.

[0036] Preferably, the first turntable 2 and the second turntable 7 are both cylindrical. Of course, in other embodiments, the shapes of the first turntable 2 and the second turntable 7 may also be other shapes, for example, the first turntable 2 and the second turntable 7 are both rectangular.

[0037] In this embodiment, two second rotating shafts 5 are provided, and the two second rotating shafts 5 are located on the same straight line, and both ends of the mounting frame 4 are rotatably connected to the support frame body 12 through a second rotating shaft 5, respectively, to ensure the installation stability and rotation reliability of the mounting frame 4.

[0038] Preferably, the second rotating shaft 5 includes a damping rotating shaft, and the mounting frame 4 is rotatably connected to the bracket 1 via the damping rotating shaft. After rotating the mounting frame 4, due to the characteristics of the damping rotating shaft, the mounting frame 4 can be stabilized at a predetermined position, and no additional fixing structure is required to fix the mounting frame 4, thereby improving the convenience of operation.

[0039] In this embodiment, the second angle sensor 6 is connected to the mounting frame 4 through the mounting plate 8. One end of the mounting plate 8 is extended with a relatively spaced connecting arm. The two connecting arms are respectively connected to the opposite sides of the mounting frame 4, so that the connection stability between the mounting plate 8 and the mounting frame 4 is better, and when the mounting frame 4 rotates, the mounting plate 8 is driven to rotate synchronously. The second angle sensor 6 is located in the extension direction of the second rotating shaft 5, that is, coaxial with the second rotating shaft 5, and has a high measurement accuracy. Specifically, the support frame body 12 is located between the two connecting arms, that is, the second angle sensor 6 is located outside the U-shaped support frame body 12 to avoid interference with the tissue model 9.

[0040] More specifically, the second turntable 7 is provided with a mounting slot 70, and the legs of the tissue model 9 are detachably plugged into the mounting slot 70. When the surgical intervention angle measurement of the tissue model 9 is required, the legs of the tissue model 9 are plugged into the mounting slot 70 on the second turntable 7, which is simple and convenient, and can be easily assembled and disassembled, saving assembly and disassembly time.

[0041] Preferably, the second turntable 7 is provided with a plurality of mounting grooves 70, the plurality of mounting grooves 70 are arranged in a staggered manner, and the legs of the tissue model 9 are adapted to the plurality of mounting grooves 70. By plugging the plurality of mounting grooves 70 with the legs, the installation stability of the tissue model 9 is improved. Exemplarily, two vertically connected mounting grooves 70 are provided on the second turntable 7, and the legs of the tissue model 9 are in a "cross" shape. Of course, in other embodiments, the number and arrangement of the mounting grooves 70 may also be other, which are specifically set according to actual needs.

[0042] In another embodiment, a positioning member is provided on the second turntable 7, and the positioning member is used to fix the legs of the tissue model 9. For example, the positioning member is an elastic clip, and the elastic clip can press the legs of the tissue model 9 onto the second turntable 7. Of course, in other embodiments, the positioning member can also be other structures, such as an electric clamp or a bolt, as long as the tissue model 9 can be fixed on the second turntable 7.

[0043] Furthermore, the tissue model angle measurement tool further includes a first driving member, which is drivingly connected to the first rotating shaft to drive the first turntable 2 to rotate, thereby realizing automatic rotation without manual rotation, and making the rotation angle of the first turntable 2 more accurately controllable.

[0044] Furthermore, the tissue model angle measurement tool further includes a second driving member, which is drivingly connected to the second rotating shaft 5 to drive the mounting frame 4 to rotate, thereby realizing automatic rotation without manual rotation, and making the rotation angle of the mounting frame 4 more accurately controllable.

[0045] The first driving member and the second driving member may be, but are not limited to, driving motors.

[0046] The following is the working process of the organizational model angle measurement tool:

[0047] Mounting the printed tissue model 9 on the second turntable 7;

[0048] A shooting screen is set up in front of the tissue model angle measurement tool to avoid errors caused by naked eye observation when adjusting the angle of the tissue model 9;

[0049] Rotate the first rotating table 2 and the rotating mounting frame 4, adjust the angle of the tissue model 9, and observe the tissue model 9 from the shooting screen so that the posture of the tissue model 9 is in the best surgical intervention posture;

[0050] The readings of the first angle sensor 3 and the second angle sensor 6 are recorded.

[0051] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A tissue model angle measurement tool, characterized in that: include: Bracket; A first rotating table, rotatably connected to the bracket via a first rotating shaft, wherein a first angle sensor coaxial with the first rotating shaft is disposed on the first rotating table; The mounting frame is rotatably connected to the bracket via a second rotating shaft, the second rotating shaft is perpendicular to the first rotating shaft, the mounting frame is connected to a second angle sensor coaxially arranged with the second rotating shaft, the mounting frame is also rotatably provided with a second turntable, the tissue model is detachably connected to the second turntable, the second turntable can rotate synchronously with the first turntable, and the first rotating shaft, the rotation axis of the second turntable and the second rotating shaft intersect at a preset point.

2. The tissue model angle measurement tool according to claim 1, characterized in that: The second turntable is connected to the first turntable via a transmission member, and the transmission member includes a flexible shaft, one end of the shaft is connected to the first turntable, and the other end is connected to the second turntable.

3. The tissue model angle measurement tool according to claim 1, characterized in that: The second rotating shaft includes a damping rotating shaft, and the mounting bracket is rotatably connected to the bracket via the damping rotating shaft.

4. The tissue model angle measurement tool according to claim 1, characterized in that: Also includes: The first driving member is drivingly connected to the first rotating shaft to drive the first rotating table to rotate.

5. The tissue model angle measurement tool according to claim 1, characterized in that: Also includes: The second driving member is drivingly connected to the second rotating shaft to drive the mounting frame to rotate.

6. The tissue model angle measurement tool according to any one of claims 1 to 5, characterized in that: The bracket includes a support and a support frame body, the support frame body is arranged on the support, the first turntable is rotatably connected to the support frame body via the first rotating shaft, the support frame body is symmetrically structured with the first rotating shaft as the symmetry axis, the mounting frame is rotatably connected to the support frame body via the second rotating shaft, and the mounting frame is symmetrically structured with the rotation axis of the second turntable as the symmetry axis.

7. The tissue model angle measurement tool according to claim 6, characterized in that: Two second rotating shafts are provided, and the two second rotating shafts are located on the same straight line. Both ends of the mounting frame are rotatably connected to the supporting frame body through a second rotating shaft respectively.

8. The tissue model angle measurement tool according to any one of claims 1 to 5, characterized in that: The second turntable is provided with a mounting slot, and the legs of the tissue model are detachably plugged into the mounting slot.

9. The tissue model angle measurement tool according to any one of claims 1 to 5, characterized in that: The second turntable is provided with a positioning piece, and the positioning piece is used to fix the supporting feet of the tissue model.

10. The tissue model angle measurement tool according to any one of claims 1 to 5, characterized in that: Also includes: The second angle sensor is arranged on the mounting plate, and two connecting arms arranged relatively spaced apart from each other extend from one end of the mounting plate, and the two connecting arms are respectively connected to the opposite sides of the mounting frame.

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