CT positioning puncture angle guide

Abstract

The present invention discloses a puncture angle guide for positioning under CT, and relates to the technical field of medical equipment. The present invention includes a horizontal axis, both sides of the horizontal axis are fixedly connected with a vertical axis, a ruler is arranged at the top of the vertical axis, a spherical guide is arranged inside the ruler, and a lead wire is fixedly connected between the two sets of horizontal axes; an adjustment component is arranged at the top of the vertical axis, and the adjustment component includes a moving seat, the moving seat is arranged at the top of the vertical axis, an inclined groove is opened inside the moving seat, and both sides of the ruler penetrate into the moving seat and are fixedly connected with an adjustment plate. Through the setting of the adjustment component, the present invention can use the horizontal axis and the vertical axis to lay the lead wire on the affected area before puncture sampling. After the CT image is taken, the doctor can observe the white lead wire line of the guide in the CT image, and the white lead wire line will be clearly shown in the image. The doctor calculates the best puncture point and angle according to the guide position and lesion condition on the CT image.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, and in particular relates to a CT positioning puncture angle guide. Background Art

[0002] Tissue biopsy is recognized by the medical community as the "gold standard" for clinical pathological diagnosis; tissue sampling methods include open biopsy (surgery), endoscopic biopsy (biopsy forceps), and percutaneous puncture biopsy (biopsy needle). Among them, biopsy needle sampling is convenient and fast, with less trauma, which can greatly reduce medical costs and is a boon to the majority of patients.

[0003] Traditional puncture guidance devices include a fixed bracket with scales or indicator marks to help doctors determine the angle and depth of puncture. These devices usually rely on the doctor's manual operation and experience to ensure accuracy. Due to the lack of precise guidance and calibration mechanisms, traditional puncture guidance devices will lead to inaccurate positioning and cannot be clearly displayed in imaging examinations (such as CT). This will make it difficult for doctors to determine whether the puncture path is correct. Multiple punctures are required for accurate positioning, which consumes a lot of time and prolongs the operation process.

[0004] To this end, we provide a CT-based puncture angle guide to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a puncture angle guide for positioning under CT. By cooperating with an adjustment component, a rotation component and a limit component, the problem of inaccurate positioning caused by the puncture guiding device in the prior art, which requires manual operation and experience of doctors to ensure accuracy, is solved.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a CT positioning puncture angle guide, comprising a horizontal axis, both sides of which are fixedly connected to a vertical axis, a ruler is arranged on the top of the vertical axis, a spherical guide is arranged inside the ruler, and a lead wire is fixedly connected between two sets of horizontal axes;

[0008] The top of the longitudinal axis is provided with an adjustment component, which includes a moving seat, which is provided at the top of the longitudinal axis, an inclined groove is provided inside the moving seat, both sides of the scale penetrate into the moving seat and are fixedly connected with an adjustment plate, a transverse groove is provided inside the adjustment plate, and a moving pin is slidably connected inside the transverse groove, and the height of the spherical guide is adjusted by the adjustment component;

[0009] A rotating assembly is provided on one side of the scale, and the rotating assembly includes a sliding seat, the sliding seat is slidably connected to the surface of the scale, a support shaft is movably connected inside the sliding seat, and a limit cap is threadedly connected to the front side of the support shaft surface, and the horizontal angle of the spherical guide is adjusted by the rotating assembly;

[0010] A limit assembly is provided on the surface of the spherical guide, and the limit assembly includes a support shell, which is sleeved on the surface of the spherical guide. The support shell is movably connected to a limit axis inside, and the elevation angle of the spherical guide is adjusted by the limit assembly.

[0011] The present invention is further configured such that a guide hole is provided inside the spherical guide, a guide rail plate is slidably connected to the bottom of the movable seat, and the bottom of the guide rail plate is fixedly connected to the longitudinal axis.

[0012] The present invention is further configured such that the adjustment assembly also includes a movable tube, which is sleeved on the surface of the movable pin, one side of the movable tube is fixedly connected to a threaded tube, the inside of the threaded tube is threadedly connected to a screw rod, and the other end of the screw rod passes through the adjustment plate and is fixedly connected to a knob.

[0013] The present invention is further configured such that the front end and the rear end of the movable pin both penetrate into the interior of the inclined groove, and the surface of the screw rod is movably connected to the inner wall of the adjustment plate through a bearing.

[0014] The present invention is further configured such that the front side and the rear side of the threaded tube are fixedly connected with sliders, and the sliders are slidably connected to the inner wall of the transverse groove.

[0015] The present invention is further configured such that one end of the support shaft is fixedly connected to the support shell, a first friction pad is fixedly connected to the front side of the sliding seat, and a second friction pad is fixedly connected to the rear side of the limiting cap.

[0016] The present invention is further configured such that the limit assembly also includes a slot, the slot is opened on one side of the support shell, one side of the limit shaft is fixedly connected to a limit ring, the surface of the limit ring is slidably connected to a rotating shell, and one side of the rotating shell is fixedly connected to a limit tooth.

[0017] The present invention is further configured such that the other end of the limit shaft is fixedly connected to the spherical guide, and a spring is sleeved on the surface of the limit shaft.

[0018] The present invention is further configured such that the top and the bottom of the limit ring are both fixedly connected to limit blocks, and the limit blocks are slidably connected to the inner wall of the rotating shell.

[0019] The present invention is further configured such that scales are provided on the tops of the horizontal axis and the vertical axis, and a suction cup is installed on the bottom of the vertical axis.

[0020] The present invention has the following beneficial effects:

[0021] 1. The present invention can arrange the lead wire on the affected part by adjusting the setting of the components before puncture sampling using the horizontal axis and the vertical axis. After the CT image is taken, the doctor can observe the white lead wire line of the guide in the CT image, and the white lead wire line will be clearly visible in the image. The doctor calculates the best puncture point and angle according to the guide position and lesion condition on the CT image.

[0022] 2. Through the setting of the rotating component, the present invention can move the support shell after the CT image is taken, so that the spherical guide can rotate with the support axis as the axis, adjust the horizontal angle of the spherical guide, and then tighten the limit cap to fix the horizontal angle. Through the setting of the limit component, the elevation angle of the spherical guide can be adjusted by rotating the support shell to adjust the spherical guide to the required angle, and select the appropriate position between the lead wires for puncture according to the data on the horizontal and vertical axes and the CT image information, thereby increasing the success rate of puncture.

[0023] 3. The present invention provides a movable pin, and when the knob is turned, the position of the threaded tube can be adjusted by using a screw rod, thereby pushing the movable pin to slide inside the inclined groove. When the movable pin slides inside the inclined groove, one side of the ruler can be lifted to adjust the height of the spherical guide, so as to adjust the different insertion angles of the puncture needle.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0026] Figure 1 This is a three-dimensional diagram of the structure of the puncture angle guide under CT;

[0027] Figure 2 It is a top view of a partial cross-section of a movable seat in a puncture angle guide under CT;

[0028] Figure 3 It is a top cross-sectional view of the adjustment plate and the threaded tube in the puncture angle guide under CT;

[0029] Figure 4 This is a schematic diagram of the separation of the ruler and the sliding seat in the puncture angle guide under CT;

[0030] Figure 5 It is a side cross-sectional view of the sliding seat in the puncture angle guide under CT;

[0031] Figure 6 This is an exploded schematic diagram of the surface structure of the spherical guide in the puncture angle positioning guide under CT;

[0032] Figure 7 It is a partial cross-sectional view of the support shell and the rotating shell in the puncture angle guide under CT;

[0033] Figure 8 This is a bottom view of the structure of the puncture angle guide under CT;

[0034] Fig. 9 This is an example of CT image presentation of the puncture angle guide for positioning under CT.

[0035] In the attached figure: 1, horizontal axis; 2, vertical axis; 3, ruler; 4, spherical guide; 5, lead wire; 6, moving seat; 7, inclined groove; 8, adjustment plate; 9, horizontal groove; 10, moving pin; 11, sliding seat; 12, supporting shaft; 13, limiting cap; 14, supporting shell; 15, limiting shaft; 16, guide hole; 17, guide plate; 18, movable tube; 19, threaded tube; 20, screw; 21, knob; 22, first friction pad; 23, second friction pad; 24, slot; 25, limiting ring; 26, rotating shell; 27, limiting teeth; 28, spring; 29, limiting block; 30, scale; 31, suction cup. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Specific embodiment 1

[0038] See also Figure 1-9 The present invention is a CT positioning puncture angle guide, comprising a transverse axis 1, both sides of the transverse axis 1 are fixedly connected with a longitudinal axis 2, a scale 3 is arranged on the top of the longitudinal axis 2, a spherical guide 4 is arranged inside the scale 3, and a lead wire 5 is fixedly connected between the two groups of transverse axes 1; an adjustment component is arranged on the top of the longitudinal axis 2, and the adjustment component comprises a moving seat 6, the moving seat 6 is arranged on the top of the longitudinal axis 2, an inclined groove 7 is opened inside the moving seat 6, both sides of the scale 3 penetrate into the moving seat 6 and are fixedly connected with an adjustment plate 8, a transverse groove 9 is opened inside the adjustment plate 8, and a moving pin 10 is slidably connected inside the transverse groove 9, and the spherical guide 4 is fixedly connected to the spherical guide 4 by the adjustment component. The height of the guide 4 is adjusted; a rotating component is provided on one side of the ruler 3, the rotating component includes a sliding seat 11, the sliding seat 11 is slidably connected to the surface of the ruler 3, the sliding seat 11 is movably connected with a support shaft 12, the front side of the surface of the support shaft 12 is threadedly connected with a limiting cap 13, and the horizontal angle of the spherical guide 4 is adjusted by the rotating component; a limiting component is provided on the surface of the spherical guide 4, the limiting component includes a supporting shell 14, the supporting shell 14 is sleeved on the surface of the spherical guide 4, the supporting shell 14 is movably connected with a limiting shaft 15, and the elevation angle of the spherical guide 4 is adjusted by the limiting component.

[0039] Specifically: The horizontal axis 1 and the longitudinal axes 2 on both sides: serve as reference marks, which are 20 cm and 10 cm long respectively, and are used for positioning and measurement. The lead wire 5 is distributed between the horizontal axis 1 and the longitudinal axis 2 to facilitate visualization in the CT image. The ruler 3 is located on the top of the horizontal axis 1 to provide an additional length measurement function. The spherical guide 4 is located in the center of the red ruler 3 to adjust the angle and stabilize the puncture needle to achieve precise puncture. The scale 30 on the top of the horizontal axis 1 and the longitudinal axis 2 can increase the adjustment accuracy, allowing the doctor to greatly increase the chance of success in one puncture, avoiding damage caused by multiple attempts, thereby improving the success rate of the operation. Specific embodiment 2

[0041] See also Figure 1-9 On the basis of the specific embodiment 1, a guide hole 16 is opened inside the spherical guide 4, a guide plate 17 is slidably connected to the bottom of the movable seat 6, and the bottom of the guide plate 17 is fixedly connected to the longitudinal axis 2. The adjustment component also includes a movable tube 18, and the movable tube 18 is sleeved on the surface of the movable pin 10. A threaded tube 19 is fixedly connected to one side of the movable tube 18, and a screw 20 is threadedly connected to the inside of the threaded tube 19. The other end of the screw 20 penetrates the adjustment plate 8 and is fixedly connected to the knob 21. The front and rear ends of the movable pin 10 both penetrate into the inside of the inclined groove 7, and the surface of the screw 20 is movably connected to the inner wall of the adjustment plate 8 through a bearing. The front and rear sides of the threaded tube 19 are fixedly connected to sliders, and the slider is slidably connected to the inner wall of the transverse groove 9.

[0042] Specifically: the movable pin 10 is slidably connected to the inner wall of the inclined groove 7, the adjustment plate 8 is slidably connected to the inner wall of the movable seat 6, there are two sliding seats 11, both of which are slidably connected to the surface of the scale 3, the surface of the limit shaft 15 is slidably connected to the inner wall of the support shell 14 through a bearing, and the guide hole 16 inside the spherical guide 4 can facilitate the insertion of the puncture needle and play a guiding role. The surface of the screw 20 is provided with an external thread, and the position of the threaded tube 19 can be adjusted by utilizing the effect of the thread when the screw 20 rotates. Specific embodiment three

[0044] See also Figure 1-9On the basis of the specific embodiment 1, one end of the support shaft 12 is fixedly connected to the support shell 14, a first friction pad 22 is fixedly connected to the front side of the sliding seat 11, and a second friction pad 23 is fixedly connected to the rear side of the limiting cap 13. The limiting assembly also includes a slot 24, which is opened on one side of the support shell 14. A limiting ring 25 is fixedly connected to one side of the limiting shaft 15, and a rotating shell 26 is slidably connected to the surface of the limiting ring 25. A limiting tooth 27 is fixedly connected to one side of the rotating shell 26. The other end of the limiting shaft 15 is fixedly connected to the spherical guide 4, and a spring 28 is sleeved on the surface of the limiting shaft 15. The top and bottom of the limiting ring 25 are fixedly connected to a limiting block 29, and the limiting block 29 is slidably connected to the inner wall of the rotating shell 26. A scale 30 is provided on the top of the horizontal axis 1 and the vertical axis 2, and a suction cup 31 is installed at the bottom of the vertical axis 2.

[0045] Specifically: the slider is slidably connected to the inner wall of the transverse groove 9, and the movement of the threaded tube 19 can be limited. The first friction pad 22 and the second friction pad 23 are both made of rubber material. When the limiting cap 13 drives the second friction pad 23 to contact the first friction pad 22, the contact friction force can be increased to achieve the function of fixing the angle of the support shell 14. The limiting teeth 27 are engaged with the slot 24, and when the rotating shell 26 rotates, the limiting teeth 27 can be driven to insert into the slot 24. The spring 28 has the function of compressing and storing energy, and the limiting teeth 27 can be reset. The suction cup 31 can be adsorbed on the skin surface to achieve the function of fixing.

[0046] The working principle of the present invention is as follows: when medical staff need to take a CT scan to determine the puncture position, they can use the horizontal axis 1 and the vertical axis 2 to lay the lead wire 5 on the affected area. After the CT image is taken, the doctor can observe the white lead wire line of the guide in the CT image, and the white lead wire line will be clearly visible in the image. The doctor calculates the best puncture point and angle according to the guide position and lesion condition on the CT image.

[0047] When the puncture position needs to be positioned, the support shell 14 can be moved to drive the sliding seat 11 and the spherical guide 4 to move along the scale 3, and then the support shell 14 can be rotated with the support shaft 12 as the axis, the support shell 14 drives the spherical guide 4 to rotate, and the spherical guide 4 drives the guide hole 16 to rotate, and the horizontal angle of positioning can be adjusted. After adjusting to the specified angle, the limit cap 13 can be manually rotated. When the limit cap 13 drives the second friction pad 23 to contact the first friction pad 22, the contact friction force is increased to achieve the function of fixing the angle of the support shell 14;

[0048] Then, the rotating shell 26 is rotated, and the rotating shell 26 drives the limiting teeth 27 to rotate counterclockwise. When the limiting teeth 27 rotate, they are constantly pushed by the inner wall of the slot 24 and squeeze the spring 28. After adjusting to the specified angle, the spring 28 drives the limiting teeth 27 to insert into the slot 24, so as to adjust the elevation angle of the spherical guide 4, so that the guide hole 16 is aligned with the puncture position, which is convenient for medical staff to accurately insert the puncture needle into the guide hole 16. The doctor only needs to operate according to the CT image and the instructions of the guide, which reduces the difficulty of operation and reduces the complications and adverse consequences caused by inaccurate positioning. The use of the guide simplifies the preparation work before puncture, reduces the cumbersome steps, and improves the smoothness of the surgical process.

[0049] Fig. 9 This is an example of CT imaging for positioning the puncture angle guide under CT:

[0050] The small white dot above can be directly displayed in the CT image, which is the cross section of lead wire 5;

[0051] The two "3"s on the left and right ends of the lead wire 5 represent that the scale 3 should be set at the position of the scale 3 on both sides of the longitudinal axis 2;

[0052] The white arrow is not directly displayed on the CT computer. The line segment is generated by the doctor.

[0053] The white arrow is located between the second and third points from the left, indicating that the doctor should insert the needle between the second and third lead wires 5 of the introducer;

[0054] The angle shown in the figure is 30°, which is displayed by the doctor on the computer. It means that the doctor should insert the needle at an angle of 30° to the body surface. The angle can be accurately adjusted by the spherical guide 4.

[0055] The standard parts used in the present invention can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled by a control unit. The control circuit of the control unit can be realized by simple programming by technicians in this field, which is common knowledge in this field, so the control method and circuit connection are not explained in detail in the present invention.

[0056] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can better understand and utilize the present invention.

Claims

1. A CT-based positioning puncture angle guide, comprising a transverse axis (1), characterized in that: The two sides of the transverse axis (1) are fixedly connected to the longitudinal axis (2), the top of the longitudinal axis (2) is provided with a scale (3), a spherical guide (4) is provided inside the scale (3), and a lead wire (5) is fixedly connected between the two sets of transverse axes (1); An adjustment component is arranged at the top of the longitudinal axis (2), and the adjustment component comprises a moving seat (6), the moving seat (6) is arranged at the top of the longitudinal axis (2), an inclined groove (7) is provided inside the moving seat (6), both sides of the scale (3) penetrate into the moving seat (6) and are fixedly connected with an adjustment plate (8), a transverse groove (9) is provided inside the adjustment plate (8), and a moving pin (10) is slidably connected inside the transverse groove (9), and the height of the spherical guide (4) is adjusted by the adjustment component; A rotating assembly is provided on one side of the scale (3), the rotating assembly comprising a sliding seat (11), the sliding seat (11) being slidably connected to the surface of the scale (3), a supporting shaft (12) being movably connected inside the sliding seat (11), a limiting cap (13) being threadedly connected to the front side of the surface of the supporting shaft (12), and the horizontal angle of the spherical guide (4) is adjusted by the rotating assembly; A limit assembly is arranged on the surface of the spherical guide (4), and the limit assembly comprises a support shell (14). The support shell (14) is sleeved on the surface of the spherical guide (4), and a limit axis (15) is movably connected inside the support shell (14). The elevation angle of the spherical guide (4) is adjusted by the limit assembly.

2. The CT positioning puncture angle guide according to claim 1, characterized in that: A guide hole (16) is provided inside the spherical guide (4), and a guide rail plate (17) is slidably connected to the bottom of the movable seat (6), and the bottom of the guide rail plate (17) is fixedly connected to the longitudinal axis (2).

3. The CT positioning puncture angle guide according to claim 1, characterized in that: The adjustment assembly further comprises a movable tube (18), wherein the movable tube (18) is sleeved on the surface of the movable pin (10), one side of the movable tube (18) is fixedly connected to a threaded tube (19), the inner part of the threaded tube (19) is threadedly connected to a screw rod (20), and the other end of the screw rod (20) passes through the adjustment plate (8) and is fixedly connected to a knob (21).

4. The CT positioning puncture angle guide according to claim 3, characterized in that: The front end and the rear end of the movable pin (10) both penetrate into the interior of the inclined groove (7), and the surface of the screw rod (20) is movably connected to the inner wall of the adjustment plate (8) via a bearing.

5. The CT positioning puncture angle guide according to claim 3, characterized in that: The front and rear sides of the threaded tube (19) are both fixedly connected with sliders, and the sliders are slidably connected to the inner wall of the transverse groove (9).

6. The CT positioning puncture angle guide according to claim 1, characterized in that: One end of the support shaft (12) is fixedly connected to the support shell (14), the front side of the sliding seat (11) is fixedly connected to a first friction pad (22), and the rear side of the limiting cap (13) is fixedly connected to a second friction pad (23).

7. The CT positioning puncture angle guide according to claim 1, characterized in that: The limit assembly further comprises a slot (24), the slot (24) being arranged on one side of the support shell (14), one side of the limit shaft (15) being fixedly connected to a limit ring (25), a surface of the limit ring (25) being slidably connected to a rotating shell (26), and one side of the rotating shell (26) being fixedly connected to a limit tooth (27).

8. The CT positioning puncture angle guide according to claim 1, characterized in that: The other end of the limiting shaft (15) is fixedly connected to the spherical guide (4), and a spring (28) is sleeved on the surface of the limiting shaft (15).

9. The CT positioning puncture angle guide according to claim 7, characterized in that: The top and bottom of the limiting ring (25) are both fixedly connected to the limiting block (29), and the limiting block (29) is slidably connected to the inner wall of the rotating shell (26).

10. The CT positioning puncture angle guide according to claim 1, characterized in that: The tops of the transverse axis (1) and the longitudinal axis (2) are both provided with scales (30), and the bottom of the longitudinal axis (2) is provided with a suction cup (31).

Images