CT (Computed Tomography) image guide auxiliary positioning device and system

Abstract

Relates to the field of medical equipment, and discloses a CT image guiding and auxiliary positioning device which comprises a lifting frame adjustably arranged on a CT machine, a sliding rail arranged at the upper end of the lifting frame and an adjusting part arranged on the sliding rail, and further comprises a positioning unit arranged on the side, away from the lifting frame, of the adjusting part and used for positioning a CT image. The positioning unit is used for positioning the injection position of the puncture unit; the adjusting unit is arranged on the side, away from the adjusting part, of the positioning unit and connected with the puncturing unit; the protection unit is detachably arranged at the lower end of the adjusting unit, flexible adjustment can be conducted according to operation requirements, the convenience and accuracy of operation are further enhanced, the position of the whole device can be easily adjusted on a CT machine, preparation work before an operation is greatly simplified, the operation efficiency is improved, the operation safety is improved, and the device is suitable for popularization and application. Operation complications are reduced, and postoperative recovery of a patient is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a CT image-guided auxiliary positioning device and system. Background Art

[0002] In the medical field, CT imaging technology is widely used in the diagnosis and treatment of diseases. In order to perform surgery or treatment precisely, doctors often need to perform positioning under the guidance of CT images. In actual surgical treatment or interventional procedures, how to accurately correspond the information on the CT image with the actual body position of the patient has always been a technical problem.

[0003] Existing devices have the following disadvantages: However, traditional positioning methods often rely on doctors' experience and feel, which not only increases the operation difficulty but also may affect the positioning accuracy, and the positioning accuracy cannot meet the requirements of high-precision surgery. Moreover, existing injection positioning devices have deficiencies in protecting the injection needle, increasing the risks during surgery.

[0004] Therefore, the present application now proposes a CT image-guided auxiliary positioning device and system to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a CT image-guided auxiliary positioning device and system to solve the problems of increasing the operation difficulty, possibly affecting the positioning accuracy, the positioning accuracy not meeting the requirements of high-precision surgery, and existing injection positioning devices having deficiencies in protecting the injection needle and increasing the risks during surgery.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A CT image-guided auxiliary positioning device includes a lifting frame adjustably arranged on a CT machine, a slide rail arranged at the upper end of the lifting frame, and an adjusting member arranged on the slide rail. It further includes: A positioning unit arranged on the side of the adjusting member away from the lifting frame for positioning the injection position of a puncture unit; An adjusting unit arranged on the side of the positioning unit away from the adjusting member and connected to the puncture unit for adjusting the injection depth of the puncture unit; A protection unit detachably arranged at the lower end of the adjusting unit for protecting the injection end of the puncture unit.

[0007] Among them, the positioning unit includes an angle ruler, an adjusting device arranged on the angle ruler and connected to the adjusting member for adjusting the installation position of the angle ruler, a rotating shaft fixed at the center position of the angle ruler, a positioning rod sleeved on the rotating shaft, and an adjusting plate arranged on one side of the positioning rod. The adjusting plate is connected to the adjusting unit.

[0008] Among them, the positioning rod is fixedly connected to the angle ruler through an adjusting bolt, and a positioning line is provided on the positioning rod.

[0009] Among them, the adjusting unit includes a mounting bracket fixed on the adjusting plate, a moving rod arranged on the mounting bracket, and a limiting ring adjustably arranged on the moving rod. A connecting plate for connecting the protection unit is arranged at the lower end of the mounting bracket; The puncturing unit includes a fixing block sleeved on the moving rod and a puncturing needle detachably fixed on the fixing block. A fixing groove for fixing the puncturing needle is provided on the fixing block.

[0010] Among them, the limiting ring is fixedly connected to the moving rod through a positioning bolt.

[0011] Among them, scale lines are provided on the moving rod.

[0012] Among them, the protection unit includes a positioning block detachably fixed on the connecting plate, a protective sleeve arranged on the positioning block, and a fixing member arranged on the positioning block for fixing the positioning block to the connecting plate. The protective sleeve is tapered.

[0013] Among them, the fixing member includes a central shaft fixed at the upper end of the protective sleeve, fixing clips symmetrically arranged and sleeved on the central shaft. A torsion spring for supporting the fixing clips is arranged on the central shaft. A moving groove for the fixing clips to move is provided on the protective sleeve. A limiting block is arranged at a position of the fixing clip close to the connecting plate. A fixing hole for fixing the limiting block is provided on the connecting plate. An arc-shaped clamping plate for fixing the puncturing needle is arranged at a position of the fixing clip inside the protective sleeve.

[0014] Among them, the adjusting member includes a slider slidably arranged on the slide rail and a fixing bracket fixed on a side of the slider away from the lifting frame. The slider is fixedly connected to the slide rail through a fixing bolt; The adjusting device includes a screw rod threadedly connected to the fixing bracket and a guiding rod arranged on the angle ruler and passing through the fixing bracket. The screw rod is rotatably connected to the angle ruler.

[0015] A CT image-guided auxiliary positioning system for operating the above-mentioned CT image-guided auxiliary positioning device.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The present invention pushes a patient into a CT scanner to obtain imaging data of the patient's condition. Then, a laser positioning lamp is used to locate the lesion of the patient. After the puncture position and puncture angle are determined, the installation angle and installation position of the puncture unit are adjusted by a positioning unit. Then, the puncture unit is pushed downward by an adjustment unit and inserted into the patient's lesion along a set path. During the puncture positioning process, a protection unit can protect the puncture end of the puncture unit to prevent the puncture unit from accidentally injuring the patient. After the puncture unit is inserted into the patient's body, the protection unit is removed from the adjustment unit and then fixed on the puncture unit to limit the insertion depth of the puncture unit. Through the positioning unit, high-precision positioning of the injection position of the puncture unit can be achieved, effectively improving the accuracy and safety of the operation. The design of the adjustment unit enables the injection depth of the puncture unit to be flexibly adjusted according to the surgical requirements, further enhancing the convenience and precision of the operation. The setting of the protection unit can effectively protect the injection end of the puncture unit, prevent accidental injuries during the operation, and ensure the stability and aseptic state of the puncture unit, reducing the infection risk. The entire device can be easily adjusted in position on the CT machine, greatly simplifying the preoperative preparation work, improving the surgical efficiency, enhancing the surgical safety, reducing the occurrence of surgical complications, and facilitating the postoperative recovery of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the main structure in an embodiment of the present invention; Figure 2 is a schematic diagram of the front view structure in an embodiment of the present invention; Figure 3 is a schematic diagram of the top view structure in an embodiment of the present invention; Figure 4 is a schematic diagram of the sectional view of the positioning unit in an embodiment of the present invention; Figure 5 is a schematic diagram of the connection structure between the positioning unit and the adjusting member in an embodiment of the present invention; Figure 6 is a schematic diagram of the connection structure between the puncture unit and the protection unit in an embodiment of the present invention; Figure 7 is a schematic diagram of the structure of the adjusting device in an embodiment of the present invention; Figure 8 is a schematic diagram of the structure for adjusting the installation angle of the puncture unit in an embodiment of the present invention; Figure 9 is a schematic diagram of the front view structure for adjusting the installation angle of the puncture unit in an embodiment of the present invention; Figure 10 is Figure 5 an enlarged schematic diagram of part A in

[0018] In the figure: 1, lifting frame; 2, slide rail; 3, adjusting member; 31, slider; 32, fixing bolt; 33, fixing frame; 4, positioning unit; 41, angle ruler; 42, guiding rod; 43, screw rod; 44, rotating shaft; 45, positioning rod; 451, positioning line; 46, adjusting plate; 47, adjusting bolt; 5, adjusting unit; 51, mounting frame; 511, connecting plate; 5111, fixing hole; 52, moving rod; 521, scale line; 53, limiting ring; 54, positioning bolt; 6, puncturing unit; 61, fixing block; 611, fixing groove; 62, puncturing needle; 7, protection unit; 71, protective sleeve; 711, moving groove; 72, positioning block; 73, fixing member; 731, fixing clip; 732, torsion spring; 733, limiting block; 734, central axis. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-10 , the present invention provides a technical solution: a CT image-guided auxiliary positioning device, including a lifting frame 1 adjustably arranged on a CT machine, a slide rail 2 arranged at the upper end of the lifting frame 1, and an adjusting member 3 arranged on the slide rail 2, and further including: A positioning unit 4, arranged on the side of the adjusting member 3 away from the lifting frame 1, for positioning the injection position of the puncturing unit 6; An adjusting unit 5, arranged on the side of the positioning unit 4 away from the adjusting member 3 and connected to the puncturing unit 6, for adjusting the injection depth of the puncturing unit 6; A protection unit 7, detachably arranged at the lower end of the adjusting unit 5, for protecting the injection end of the puncturing unit 6.

[0021] It should be noted that during operation, the lifting frame 1 is installed on the side of the scanning bed of the CT machine or is detachably fixed to the bed board of the scanning bed with bolts and moves along with the scanning bed. The patient is pushed into the CT machine to obtain the imaging data of the patient's condition. Then, the laser positioning lamp is used to position the lesion of the patient. After the puncture position and puncture angle are determined, the installation angle and installation position of the puncture unit 6 are adjusted by the positioning unit 4. Then, the puncture unit 6 is pushed downward by the adjusting unit 5 and penetrates into the patient's lesion along the set path. During the puncture positioning process, the protection unit 7 can protect the puncture end of the puncture unit 6 to prevent the puncture unit 6 from accidentally injuring the patient. After the puncture unit 6 is inserted into the patient's body, the protection unit 7 is removed from the adjusting unit 5 and then fixed on the puncture unit 6 to limit the penetration depth of the puncture unit 6. Through the positioning unit 4, high-precision positioning of the injection position of the puncture unit 6 can be achieved, effectively improving the accuracy and safety of the operation. The design of the adjusting unit 5 enables the injection depth of the puncture unit 6 to be flexibly adjusted according to the surgical requirements, further enhancing the convenience and precision of the operation. The setting of the protection unit 7 can effectively protect the injection end of the puncture unit 6, prevent accidental injuries during the operation, ensure the stability and aseptic state of the puncture unit 6, reduce the infection risk, and the entire device can be easily adjusted in position on the CT machine, greatly simplifying the preoperative preparation work, improving the surgical efficiency, enhancing the surgical safety, reducing the occurrence of surgical complications, and being beneficial to the postoperative recovery of the patient.

[0022] In one embodiment, the positioning unit 4 includes an angle scale 41, an adjusting device provided on the angle scale 41 and connected to the adjusting member 3 for adjusting the installation position of the angle scale 41, a rotating shaft 44 fixed at the center position of the angle scale 41, a positioning rod 45 sleeved on the rotating shaft 44, and an adjusting plate 46 provided on one side of the positioning rod 45. The adjusting plate 46 is connected to the adjusting unit 5.

[0023] With such a design, referring to Figure 5 and Figures 8-9 , the introduction of the angle scale 41 can accurately measure and adjust the puncture angle. The installation position of the angle scale 41 can be accurately adjusted through the adjusting device. The positioning rod 45 rotates along the rotating shaft 44, so that the adjusting plate 46 drives the adjusting unit 5 to rotate along the rotating shaft 44, and then the puncture angle and puncture position of the puncture unit 6 are fixed. Through the angle scale 41, the doctor can directly read and adjust to the required puncture angle, thus greatly improving the accuracy and success rate of the operation.

[0024] In one embodiment, the positioning rod 45 is fixedly connected to the angle scale 41 through an adjusting bolt 47, and a positioning line 451 is provided on the positioning rod 45.

[0025] Designed in this way, referring to Figure 5 and Figures 8-9 , after adjusting the angle of the positioning rod 45, the positioning rod 45 is fixed to the angle ruler 41 by adjusting the bolt 47, completing the fixation of the angle of the puncture unit 6. The positioning line 451 can facilitate medical staff to accurately judge the position and direction of the puncture unit 6, thereby further improving the accuracy and safety of the operation.

[0026] In one embodiment, the adjusting unit 5 includes a mounting bracket 51 fixed on the adjusting plate 46, a moving rod 52 arranged on the mounting bracket 51, and a limiting ring 53 adjustably arranged on the moving rod 52. A connecting plate 511 for connecting the protection unit 7 is arranged at the lower end of the mounting bracket 51; The puncture unit 6 includes a fixing block 61 sleeved on the moving rod 52 and a puncture needle 62 detachably fixed on the fixing block 61. A fixing groove 611 for fixing the puncture needle 62 is formed on the fixing block 61.

[0027] Designed in this way, referring to Figure 5 , after the puncture depth measurement is completed, the limiting ring 53 is fixed at a set position on the moving rod 52, and then the fixing block 61 is pushed to move up and down on the moving rod 52, and then the puncture needle 62 is driven to penetrate into the body of the wearer along a specified path. The doctor can accurately adjust the position of the fixing block 61 on the moving rod 52 as needed, so as to achieve precise control of the puncture depth, which is crucial to ensure the accuracy and safety of the puncture process.

[0028] In one embodiment, the limiting ring 53 is fixedly connected to the moving rod 52 through a positioning bolt 54.

[0029] Designed in this way, referring to Figure 5 , through the fastening effect of the positioning bolt 54, the limiting ring 53 can be firmly fixed on the moving rod 52. Precise adjustment of the position of the limiting ring 53 on the moving rod 52 and the puncture depth of the puncture needle 62 help the doctor to more accurately grasp the puncture depth and position, and improve the success rate of the operation.

[0030] In one embodiment, scale lines 521 are arranged on the moving rod 52.

[0031] Designed in this way, the scale lines 521 provide an intuitive reference for the doctor, enabling them to accurately measure the moving distance and position of the moving rod 52. In the puncture operation, this precise measurement ability is crucial for determining the depth and position of the puncture needle 62, which helps to improve the accuracy and safety of the operation.

[0032] In one embodiment, the protection unit 7 includes a positioning block 72 detachably fixed on the connecting plate 511, a protective sleeve 71 provided on the positioning block 72, and a fixing member 73 provided on the positioning block 72 for fixing the positioning block 72 to the connecting plate 511. The protective sleeve 71 is tapered.

[0033] With such a design, referring to Figures 5-10 , the tapered protective sleeve 71 can effectively locate the puncture position. Since the positioning block 72 is detachable and can be conveniently fixed on the connecting plate 511 in cooperation with the fixing member 73, after the puncture needle 62 penetrates into the patient's body, the fixing member 73 can be removed from the connecting plate 511, and then the fixing member 73 can be fixed on the puncture needle 62 to ensure that the puncture depth of the puncture needle 62 remains unchanged.

[0034] In one embodiment, the fixing member 73 includes a central shaft 734 fixed to the upper end of the protective sleeve 71, fixing clips 731 symmetrically sleeved on the central shaft 734. A torsion spring 732 for supporting the fixing clips 731 is provided on the central shaft 734. A moving groove 711 for the fixing clips 731 to move is formed on the protective sleeve 71. A limiting block 733 is provided at a position where the fixing clip 731 is close to the connecting plate 511. A fixing hole 5111 for fixing the limiting block 733 is formed on the connecting plate 511. An arc-shaped clamping plate for fixing the puncture needle 62 is provided at a position where the fixing clip 731 is located inside the protective sleeve 71.

[0035] With such a design, referring to Figure 6 and Figure 10 , through the cooperation of the central shaft 734 and the fixing clips 731, and the combination of the limiting block 733 and the fixing hole 5111 on the connecting plate 511, the fixing member 73 can provide a stable fixing effect, ensuring the stability and reliability of the protective sleeve 71 during the operation. When the puncture needle 62 is inserted into the patient's body, the fixing clip 731 is pressed to squeeze the torsion spring 732, the limiting block 733 is taken out of the fixing hole 5111, and then the fixing clip 731 is taken off the connecting plate 511. Then the fixing clip 731 is released, and under the action of the torsion spring 732, the clamping plate on the fixing clip 731 is fixed on the puncture needle 62 to ensure that the puncture depth of the puncture needle 62 remains unchanged and improve the efficiency of surgical preparation.

[0036] In one embodiment, the adjusting member 3 includes a slider 31 slidably provided on the slide rail 2 and a fixing frame 33 fixed to a side of the slider 31 away from the lifting frame 1. The slider 31 is fixedly connected to the slide rail 2 through a fixing bolt 32; The adjusting device includes a screw rod 43 threadedly connected to the fixing frame 33 and a guiding rod 42 provided on the angle ruler 41 and passing through the fixing frame 33. The screw rod 43 is rotatably connected to the angle ruler 41.

[0037] Designed in this way, referring to Figures 1-4 , by sliding the slider 31 arranged on the slide rail 2, fine adjustment of the position of the fixing frame 33 can be achieved, enabling the doctor to accurately position the installation position of the puncture needle 62 as needed. Rotating the screw rod 43 can finely adjust the distance between the angle ruler 41 and the fixing frame 33, thus meeting the precise requirements for the position of the device during the operation.

[0038] A CT image-guided auxiliary positioning system is used to operate the above-mentioned CT image-guided auxiliary positioning device.

[0039] This system obtains the image data of the patient from the CT machine, performs necessary processing and analysis, extracts information such as the position, size, and shape of the lesion, then determines the position of the puncture point through the laser positioning lamp, marks the puncture point on the patient's body, then adjusts the puncture angle through the laser positioning lamp, adjusts the height of the puncture needle 62 through the lifting frame 1, adjusts the horizontal position of the puncture needle 62 through the adjusting member 3, adjusts the lateral position of the puncture needle 62 through the adjusting device, so that the lower end of the protective sleeve 71 is aligned with the puncture point, then adjusts the angle of the puncture needle 62 through the positioning unit 4, and then records whether the puncture position and angle of the puncture needle 62 are qualified through the CT machine. When the puncture needle 62 meets the puncture requirements, the next treatment work is carried out.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance to the specification or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature.

Claims

1. A CT image-guided auxiliary positioning device, comprising a lifting frame (1) adjustably arranged on a CT machine, a slide rail (2) arranged at the upper end of the lifting frame (1), and an adjusting member (3) arranged on the slide rail (2), characterized in that: Also includes: A positioning unit (4), arranged on a side of the adjusting member (3) away from the lifting frame (1), and used for positioning the injection position of the puncture unit (6); an adjustment unit (5), arranged on a side of the positioning unit (4) away from the adjustment member (3) and connected to the puncture unit (6), and used for adjusting the injection depth of the puncture unit (6); A protection unit (7) is detachably arranged at the lower end of the adjustment unit (5) and is used to protect the injection end of the puncture unit (6).

2. The CT image-guided auxiliary positioning device according to claim 1, characterized in that: The positioning unit (4) comprises an angle ruler (41), an adjustment device disposed on the angle ruler (41) and connected to the adjustment member (3) for adjusting the installation position of the angle ruler (41), a rotating shaft (44) fixed at the center position of the angle ruler (41), a positioning rod (45) sleeved on the rotating shaft (44), and an adjustment plate (46) disposed on one side of the positioning rod (45), wherein the adjustment plate (46) is connected to the adjustment unit (5).

3. The CT image-guided auxiliary positioning device according to claim 2, characterized in that: The positioning rod (45) is fixedly connected to the angle ruler (41) via an adjusting bolt (47), and a positioning line (451) is provided on the positioning rod (45).

4. The CT image-guided auxiliary positioning device according to claim 2, characterized in that: The adjustment unit (5) comprises a mounting frame (51) fixed on the adjustment plate (46), a moving rod (52) arranged on the mounting frame (51), and a limiting ring (53) adjustably arranged on the moving rod (52); a connecting plate (511) for connecting to the protection unit (7) is provided at the lower end of the mounting frame (51); The puncture unit (6) comprises a fixing block (61) sleeved on the moving rod (52) and a puncture needle (62) detachably fixed to the fixing block (61), and a fixing groove (611) for fixing the puncture needle (62) is provided on the fixing block (61).

5. The CT image-guided auxiliary positioning device according to claim 4, characterized in that: The limiting ring (53) is fixedly connected to the moving rod (52) via a positioning bolt (54).

6. The CT image-guided auxiliary positioning device according to claim 4, characterized in that: The moving rod (52) is provided with scale lines (521).

7. The CT image-guided auxiliary positioning device according to claim 4, characterized in that: The protection unit (7) comprises a positioning block (72) detachably fixed on the connecting plate (511), a protection sleeve (71) arranged on the positioning block (72), and a fixing member (73) arranged on the positioning block (72) for fixing the positioning block (72) to the connecting plate (511); the protection sleeve (71) is arranged in a conical shape.

8. The CT image-guided auxiliary positioning device according to claim 7, characterized in that: The fixing member (73) comprises a central axis (734) fixed to the upper end of the protective sleeve (71), a fixing clamp (731) sleeved on the central axis (734) and symmetrically arranged, the central axis (734) being provided with a torsion spring (732) for supporting the fixing clamp (731), the protective sleeve (71) being provided with a moving groove (711) for the fixing clamp (731) to move, a limiting block (733) being provided at a position of the fixing clamp (731) close to the connecting plate (511), a fixing hole (5111) being provided on the connecting plate (511) for fixing the limiting block (733), and an arc-shaped clamping plate for fixing the puncture needle (62) being provided at a position of the fixing clamp (731) located inside the protective sleeve (71).

9. The CT image-guided auxiliary positioning device according to claim 2, characterized in that: The adjusting member (3) comprises a sliding block (31) slidably arranged on the sliding rail (2) and a fixing frame (33) fixed to a side of the sliding block (31) away from the lifting frame (1); the sliding block (31) is fixedly connected to the sliding rail (2) via a fixing bolt (32); The adjusting device comprises a screw rod (43) threadedly connected to the fixing frame (33) and a guide rod (42) arranged on the angle ruler (41) and passing through the fixing frame (33); the screw rod (43) is rotatably connected to the angle ruler (41).

10. The CT image-guided auxiliary positioning system according to claim 1, which is applicable to the CT image-guided auxiliary positioning device according to any one of claims 1 to 9, characterized in that: It comprises the CT image-guided auxiliary positioning device as described in any one of claims 1 to 9.

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