Pancreatic tumor puncture biopsy positioning device

Abstract

The application discloses a pancreas tumor puncture biopsy positioning device and relates to the technical field of medical apparatuses. The pancreas tumor puncture biopsy positioning device comprises an examination bed body, a bed body support is fixedly connected to the upper end of the examination bed body, a threaded rod is fixedly connected to the center of the lower surface of the bed body support, a CT machine is fixedly connected to the lower end of the threaded rod, and a rotating plate is rotatably connected to the left and right sides of the CT machine. After the angle adjustment of the rotating plate is completed, medical staff can move the dial block, and the dial block drives the clamping rod to rotate along the fixed shaft. At this time, the medical staff can adjust the rotation angle of the clamping rod according to the body type of the patient, and the lower end of the clamping rod is clamped between the ratchet block. At this time, the clamping rod can abut against the auxiliary plate, and the auxiliary plate is rotated, the inner side of the auxiliary plate is adjusted to be in close contact with the torso of the patient, at this time, the auxiliary plate can further limit the torso of the patient, reduce the torso deviation of the patient, and avoid affecting the subsequent imaging.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a pancreatic tumor biopsy localization device. Background Technology

[0002] In the treatment of pancreatic tumors, a biopsy is generally required to identify the type, grade, and stage of the tumor, providing important information for clinical decision-making. Before the biopsy, the location of the pancreatic tumor needs to be determined. Localization devices play a crucial role in the diagnosis of pancreatic diseases. They mainly rely on the guidance of imaging technologies, such as ultrasound, CT, and MRI, to achieve precise localization and biopsy of pancreatic lesions.

[0003] For example, a high-precision puncture biopsy positioning system and method, disclosed in CN114711914A, belongs to medical facilities. It includes an examination bed where the patient lies prone. The examination bed is designed with a prone position that matches the patient's body shape. A body fixation mechanism is installed at the prone position. An examination window is opened on the patient's chest in the prone position, allowing the patient's breast to naturally droop through the examination window into the examination area below. A lesion positioning system is installed at the examination window, located at the lower part of the examination bed, directly below the patient's chest in the prone position. This invention is novel in design and ingenious in conception, enabling accurate positioning and puncture guidance in puncture biopsy of breast lesions. It provides accurate detection, precise positioning, and excellent guidance for the puncture procedure. For example, in a biopsy positioning device with publication number CN210019550U, an up-and-down adjustment structure is fixedly installed on a linear drive structure and can move linearly under the drive of the linear drive structure. A rotating structure is rotatably installed on the up-and-down adjustment structure and its height is adjusted by the up-and-down adjustment structure. A clamping structure is installed on the rotating structure and rotates with the rotating structure. Two automatic alignment structures are fixedly installed on the clamping structure. The ultrasound machine is clamped in the automatic alignment structure. A needle insertion angle adjustment mechanism is fixedly installed on the rotating structure. An automatic needle insertion structure is installed on the needle insertion angle adjustment structure. The biopsy needle is installed on the automatic needle insertion structure and can adjust its insertion angle under the drive of the needle insertion angle adjustment structure. After the angle is adjusted, the automatic needle insertion structure only needs to insert the biopsy needle into the patient's body along this angle to take a sample. The positioning is more accurate and faster, thereby improving the success rate of biopsy.

[0004] Existing positioning devices cannot locate the patient's torso during image localization. When different patients lie flat on the device, their lying positions are not the same. When the CT machine captures images, some lesions may not be captured, which has certain limitations. Meanwhile, the existing equipment requires medical staff to manually disinfect the device when performing CT sampling on patients. This manual disinfection process increases the workload and workload of medical staff to some extent.

[0005] Therefore, we proposed a pancreatic tumor biopsy localization device to address the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a pancreatic tumor biopsy localization device to solve the problems mentioned in the background art, such as the inability to locate the patient's torso, the limitations of CT machines in image capture, and the increased workload and operational burden of medical staff due to manual disinfection operations.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pancreatic tumor puncture biopsy positioning device, including an examination bed, wherein a bed support is fixedly connected to the upper end of the examination bed, and a threaded rod is fixedly connected to the center of the lower surface of the bed support, and a CT machine is fixedly connected to the lower end of the threaded rod. A rotating plate is rotatably connected to the left and right sides of the CT machine. A connecting seat is hinged to the lower end of the rotating plate, and a clamping plate is fixedly connected to the inner side of the connecting seat. An adjustment mechanism that can drive the rotating plate to rotate is provided between the upper end of the rotating plate and the threaded rod. An auxiliary plate, the lower end of which is hinged to a connecting seat, and an auxiliary mechanism is provided between the inner side of the auxiliary plate and the rotating plate to drive the auxiliary plate to adjust the angle, thereby achieving auxiliary clamping. The movable slot is located inside the upper side of the CT scanner, and a linkage plate is nested inside the movable slot. A disinfection plate is fixedly connected to the outer end of the linkage plate. The movable slot is equipped with a pushing mechanism that can drive the disinfection plate to move and disinfect.

[0008] Preferably, the adjusting mechanism includes a threaded sleeve, which is threadedly connected to the outside of the threaded rod, and a connecting block is fixedly connected to the lower end of the threaded sleeve. A fixed sleeve is provided on the lower side of the threaded sleeve, and the connecting block is nested inside the upper surface of the fixed sleeve. The fixed sleeve has rotating rods hinged to both the left and right sides, and the lower end of the rotating rods is hinged to the upper end of the rotating plate.

[0009] Preferably, the connecting block forms a rotating structure with the fixed sleeve via the threaded sleeve, and the fixed sleeve forms a sliding structure with the threaded rod via the connecting block, and the rotating rod drives the rotating plate to form a rotating structure with the CT mechanism via the fixed sleeve.

[0010] Preferably, the auxiliary mechanism includes an adjustment groove, which is formed on the rotating plate, and a fixed shaft is fixedly connected inside the adjustment groove. A locking rod is nested on the outside of the fixed shaft, and a lever is fixedly connected to the upper end of the locking rod. The inner side of the auxiliary plate is fixedly connected to multiple sets of ratchet blocks, and the upper inner side of the auxiliary plate is fixedly connected to the rotating plate with a first spring.

[0011] Preferably, the lever and the locking rod form an integrated structure, and the lower end of the locking rod engages with the ratchet block. The auxiliary plate forms a rotating structure with the rotating plate through the first spring.

[0012] Preferably, the examination bed has an internal movable groove, and a limit rod is fixedly connected inside the movable groove. The lower end of the clamping plate is nested and connected to the outside of the limit rod, and a second spring is fixedly connected between the inner side of the clamping plate and the movable groove.

[0013] Preferably, the clamping plate forms an elastic structure with the movable groove via the second spring, and the clamping plate does not fit against the outer side of the limiting rod.

[0014] Preferably, the pushing mechanism includes a push rod, which is fixedly connected to the inner side of the clamping plate, and the inner end of the push rod is fixedly connected to a push plate, and a first airbag is provided inside the movable groove; The movable slot is equipped with a second airbag inside, and the second airbag is connected to the first airbag by a through air supply hose.

[0015] Preferably, the first airbag is located between the two sets of push plates, the second airbag is located between the two linkage plates, and the linkage plates form a sliding structure with the moving groove through the second airbag.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) When the patient is lying flat on the examination bed, the medical staff can manually rotate the threaded sleeve. At this time, the connecting block set at the lower end of the threaded sleeve will rotate synchronously inside the fixed sleeve. Under the action of the connecting block, the threaded sleeve will drive the fixed sleeve to move vertically. During the movement of the fixed sleeve, the two ends of the rotating rod will rotate synchronously. At this time, the rotating rod will drive the rotating plate to rotate at an angle. At this time, the lower end of the rotating plate will push the clamping plate to move inside the movable groove through the connecting seat. During the movement of the clamping plate, the patient's torso will be initially limited, thereby ensuring that the CT machine can sample the lesion. (2) During the movement of the clamping plate inside the clamping plate, it will move synchronously along the outside of the limiting rod. At this time, the limiting rod can limit the clamping plate and improve the stability of the clamping plate during movement. At the same time, the clamping plate will squeeze the second spring synchronously during movement. Under the buffering effect of the elastic force of the second spring, the stability of the clamping plate in limiting the torso can be further improved. (3) When the clamping plate moves, it will move the push plate synchronously through the push rod. At this time, the push plate will squeeze the first airbag. The gas inside the first airbag will enter the second airbag through the air supply hose. At this time, the second airbag will expand. During the expansion of the second airbag, it will push the linkage plate to move. During the movement of the linkage plate, it will move the disinfection plate to both sides synchronously, thereby disinfecting the lower side of the CT machine and reducing the amount of manual disinfection work for medical staff. (4) After the angle of the rotating plate is adjusted, the medical staff can move the lever and drive the locking rod to rotate along the fixed axis. At this time, the medical staff can adjust the rotation angle of the locking rod according to the patient's body shape and lock the lower end of the locking rod with the spike block. At this time, the locking rod can touch the auxiliary plate and make the auxiliary plate rotate. Adjust the inner side of the auxiliary plate to fit with the patient's torso. At this time, the auxiliary plate can further limit the patient's torso, reduce the patient's torso deviation, and avoid affecting the subsequent imaging. (5) When the auxiliary plate rotates, it will cause the first spring to undergo elastic deformation in sync. Under the action of the elastic force of the first spring, the auxiliary plate can stably limit and clamp the patient's torso. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the front sectional view of the threaded sleeve of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a front view schematic diagram of the auxiliary plate structure of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the rotating plate of the present invention; Figure 6 This is a three-dimensional cross-sectional view of the rotating plate of the present invention; Figure 7 This is a schematic diagram of the front sectional view of the clamping plate of the present invention; Figure 8 This is a front view schematic diagram of the push plate structure of the present invention; Figure 9 This is a schematic diagram of the front cross-sectional structure of the second airbag of the present invention; Figure 10This is a schematic diagram of the side cross-sectional structure of the second airbag of the present invention.

[0018] In the diagram: 1. Examination bed; 2. Bed frame; 3. Threaded rod; 4. CT scanner; 5. Rotating rod; 6. Threaded sleeve; 7. Fixing sleeve; 8. Connecting block; 9. Linkage plate; 10. Clamping plate; 11. Auxiliary plate; 12. Air supply hose; 13. Rotating plate; 14. First spring; 15. Adjustment groove; 16. Toggle block; 17. Fixed shaft; 18. Ratchet; 19. Engaging rod; 20. Connecting seat; 21. Push rod; 22. Push plate; 23. Limiting rod; 24. Second spring; 25. Movable groove; 26. First airbag; 27. Second airbag; 28. Moving groove; 29. ​​Sterilization plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 7 The present invention provides the following technical solution: a pancreatic tumor puncture biopsy positioning device, which discloses an adjustment mechanism that allows for initial positioning of the patient's torso. The inspection bed 1 is fixedly connected to the upper end of the inspection bed 1, and a threaded rod 3 is fixedly connected to the center of the lower surface of the bed frame 2, and a CT machine 4 is fixedly connected to the lower end of the threaded rod 3. Rotating plate 13 is rotatably connected to the left and right sides of CT machine 4, and a connecting seat 20 is hinged to the lower end of rotating plate 13. A clamping plate 10 is fixedly connected to the inner side of the connecting seat 20. An adjustment mechanism that can drive rotating plate 13 to rotate is provided between the upper end of rotating plate 13 and threaded rod 3. The adjustment mechanism includes a threaded sleeve 6, which is threadedly connected to the outside of the threaded rod 3. A connecting block 8 is fixedly connected to the lower end of the threaded sleeve 6. A fixed sleeve 7 is provided on the lower side of the threaded sleeve 6. The connecting block 8 is nested inside the upper surface of the fixed sleeve 7. Rotating rods 5 are hinged on both the left and right sides of the fixed sleeve 7, and the lower end of the rotating rod 5 is hinged to the upper end of the rotating plate 13. The connecting block 8 forms a rotating structure with the fixed sleeve 7 via the threaded sleeve 6, and the fixed sleeve 7 forms a sliding structure with the threaded rod 3 via the connecting block 8. The rotating rod 5 drives the rotating plate 13 to form a rotating structure with the CT machine 4 via the fixed sleeve 7. The inspection bed 1 has an internal movable groove 25, and a limit rod 23 is fixedly connected inside the movable groove 25. The lower end of the clamping plate 10 is nested and connected to the outside of the limit rod 23. A second spring 24 is fixedly connected between the inner side of the clamping plate 10 and the movable groove 25. The clamping plate 10 and the movable groove 25 form an elastic structure through the second spring 24. The clamping plate 10 does not fit against the outside of the limit rod 23.

[0021] When the patient lies flat on the examination bed 1, medical staff can manually rotate the threaded sleeve 6. At this time, the threaded sleeve 6 will move vertically along the threaded rod 3 under the threaded engagement with the threaded rod 3. At this time, the connecting block 8 set at the lower end of the threaded sleeve 6 will rotate synchronously inside the fixed sleeve 7. Under the action of the connecting block 8, the threaded sleeve 6 will drive the fixed sleeve 7 to move vertically. During the movement of the fixed sleeve 7, the two ends of the rotating rod 5 will rotate synchronously. At this time, the rotating rod 5 will drive the rotating plate 13 to rotate at an angle. At this time, the lower end of the rotating plate 13 will push the clamping plate 10 to move inside the movable groove 25 through the connecting seat 20. During the movement, the clamping plate 10 will initially limit the patient's torso position, thereby ensuring that the CT machine 4 can sample the lesion.

[0022] Example 2: Figure 1 , Figure 4 , Figure 5 and Figure 6 The present invention provides the following technical solution: a pancreatic tumor puncture biopsy positioning device, which discloses an auxiliary mechanism that can further limit the position of the patient's torso. The auxiliary plate 11 has its lower end hinged to the connecting seat 20, and an auxiliary mechanism is provided between the inner side of the auxiliary plate 11 and the rotating plate 13 to drive the auxiliary plate 11 to adjust its angle so as to achieve auxiliary clamping. The auxiliary mechanism includes an adjustment groove 15, which is opened on the rotating plate 13. A fixed shaft 17 is fixedly connected inside the adjustment groove 15, and a locking rod 19 is nested on the outside of the fixed shaft 17. At the same time, a lever 16 is fixedly connected to the upper end of the locking rod 19. Multiple sets of ratchet blocks 18 are fixedly connected to the inner side of the auxiliary plate 11, and a first spring 14 is fixedly connected between the upper inner side of the auxiliary plate 11 and the rotating plate 13. The lever 16 and the locking rod 19 form an integrated structure, and the lower end of the locking rod 19 meshes with the ratchet block 18. The auxiliary plate 11 forms a rotating structure with the rotating plate 13 through the first spring 14. After the angle of the rotating plate 13 is adjusted, the medical staff can move the lever 16 and drive the locking rod 19 to rotate along the fixed axis 17. At this time, the medical staff can adjust the rotation angle of the locking rod 19 according to the patient's body shape and lock the lower end of the locking rod 19 with the ratchet block 18. At this time, the locking rod 19 can abut against the auxiliary plate 11 and cause the auxiliary plate 11 to rotate. When the auxiliary plate 11 rotates, it will simultaneously cause the first spring 14 to undergo elastic deformation. Under the action of the elastic force of the first spring 14, the auxiliary plate 11 can stably limit and clamp the patient's torso. Adjust the inner side of the auxiliary plate 11 to fit against the patient's torso. At this time, with the assistance of the auxiliary mechanism, the auxiliary plate 11 can further limit the curvature of the torso of different patients on the basis that the clamping plate 10 has already limited the side of the patient's torso, reduce the patient's torso deviation, and avoid affecting subsequent imaging. Driven by the rotating plate 13, the auxiliary plate 11 will move closer to the patient's torso. At the same time, under the adjustment of the auxiliary mechanism, the auxiliary plate 11 can further limit the position of the patient's torso. The dual limitation can make the position of the patient's torso and the CT machine 4 better correspond during the biopsy positioning process, thereby improving the imaging effect of the tumor site.

[0023] Example 3: Figure 1 , Figure 8 , Figure 9 and Figure 10 The present invention provides the following technical solution: a pancreatic tumor puncture biopsy positioning device, which discloses a pushing mechanism, thereby reducing the amount of manual disinfection work required by medical personnel. The movable slot 28 is located inside the upper side of the CT machine 4, and a linkage plate 9 is nested inside the movable slot 28. A disinfection plate 29 is fixedly connected to the outer end of the linkage plate 9. A pushing mechanism that can drive the disinfection plate 29 to move and disinfect is provided inside the movable slot 28. The pushing mechanism includes a push rod 21, which is fixedly connected to the inner side of the clamping plate 10, and the inner end of the push rod 21 is fixedly connected to a push plate 22. The movable groove 25 is provided with a first airbag 26; the movable groove 28 is provided with a second airbag 27, and the second airbag 27 and the first airbag 26 are connected by a supply hose 12. The first airbag 26 is located between the two sets of push plates 22, and the second airbag 27 is located between the two linkage plates 9. The linkage plates 9 form a sliding structure with the moving groove 28 through the second airbag 27.

[0024] When the clamping plate 10 moves, it will simultaneously drive the push plate 22 to move via the push rod 21. At this time, the push plate 22 will squeeze the first airbag 26. The gas inside the first airbag 26 will enter the second airbag 27 through the air supply hose 12. At this time, the second airbag 27 will inflate. During the inflation process, the second airbag 27 will push the linkage plate 9 to move. During the movement of the linkage plate 9, it will simultaneously drive the disinfection plate 29 to move to both sides, thereby disinfecting the lower side of the CT machine 4 and reducing the amount of manual disinfection work for medical staff. With the first airbag 26 in place, the device can simultaneously move the disinfection plate 29 via the second airbag 27 while limiting the patient's torso, thereby disinfecting the lower side of the CT machine 4. The disinfection and clamping / limiting operations can be performed simultaneously, improving the ease of operation of the device, simplifying the pre-use process, and reducing the preparation time for medical staff.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pancreatic tumor biopsy positioning device, comprising an examination bed (1), wherein a bed support (2) is fixedly connected to the upper end of the examination bed (1), and a threaded rod (3) is fixedly connected to the center of the lower surface of the bed support (2), and a CT machine (4) is fixedly connected to the lower end of the threaded rod (3). Its features are, Also includes: Rotating plate (13), the rotating plate (13) is rotatably connected to the left and right sides of CT machine (4), and a connecting seat (20) is hinged at the lower end of the rotating plate (13), and a clamping plate (10) is fixedly connected to the inner side of the connecting seat (20). An adjustment mechanism that can drive the rotating plate (13) to rotate is provided between the upper end of the rotating plate (13) and the threaded rod (3). The auxiliary plate (11) is hinged at its lower end to the connecting seat (20), and an auxiliary mechanism is provided between the inner side of the auxiliary plate (11) and the rotating plate (13) to drive the auxiliary plate (11) to adjust the angle so as to achieve auxiliary clamping. The movable slot (28) is located inside the upper side of the CT machine (4), and a linkage plate (9) is nested inside the movable slot (28). A disinfection plate (29) is fixedly connected to the outer end of the linkage plate (9). A pushing mechanism that can drive the disinfection plate (29) to move and disinfect is provided inside the movable slot (28).

2. The pancreatic tumor biopsy localization device according to claim 1, characterized in that: The adjustment mechanism includes a threaded sleeve (6), which is threadedly connected to the outside of the threaded rod (3), and a connecting block (8) is fixedly connected to the lower end of the threaded sleeve (6). A fixed sleeve (7) is provided on the lower side of the threaded sleeve (6), and the connecting block (8) is nested inside the upper surface of the fixed sleeve (7). The fixed sleeve (7) has a rotating rod (5) hinged on both the left and right sides, and the lower end of the rotating rod (5) is hinged to the upper end of the rotating plate (13).

3. The pancreatic tumor biopsy localization device according to claim 2, characterized in that: The connecting block (8) forms a rotating structure with the fixed sleeve (7) through the threaded sleeve (6), and the fixed sleeve (7) forms a sliding structure with the threaded rod (3) through the connecting block (8). The rotating rod (5) drives the rotating plate (13) and the CT machine (4) to form a rotating structure through the fixed sleeve (7).

4. The pancreatic tumor biopsy localization device according to claim 1, characterized in that: The auxiliary mechanism includes an adjustment groove (15), which is opened on the rotating plate (13). A fixed shaft (17) is fixedly connected inside the adjustment groove (15), and a locking rod (19) is nested on the outside of the fixed shaft (17). At the same time, a lever (16) is fixedly connected to the upper end of the locking rod (19). The inner side of the auxiliary plate (11) is fixedly connected with multiple sets of ratchet blocks (18), and the upper inner side of the auxiliary plate (11) is fixedly connected with a first spring (14) between the rotating plate (13).

5. The pancreatic tumor biopsy localization device according to claim 4, characterized in that: The push block (16) and the locking rod (19) form an integrated structure, and the lower end of the locking rod (19) meshes with the ratchet block (18). The auxiliary plate (11) forms a rotating structure with the rotating plate (13) through the first spring (14).

6. The pancreatic tumor biopsy localization device according to claim 1, characterized in that: The examination bed (1) has an internal movable groove (25) and a limit rod (23) is fixedly connected inside the movable groove (25). The lower end of the clamping plate (10) is nested and connected to the outside of the limit rod (23), and a second spring (24) is fixedly connected between the inner side of the clamping plate (10) and the movable groove (25).

7. The pancreatic tumor biopsy localization device according to claim 6, characterized in that: The clamping plate (10) forms an elastic structure with the movable groove (25) through the second spring (24), and the clamping plate (10) does not fit against the outer side of the limiting rod (23).

8. The pancreatic tumor biopsy localization device according to claim 1, characterized in that: The pushing mechanism includes a push rod (21), which is fixedly connected to the inner side of the clamping plate (10), and the inner end of the push rod (21) is fixedly connected to a push plate (22). The movable groove (25) is provided with a first airbag (26). The interior of the movable slot (28) is provided with a second airbag (27), and the second airbag (27) and the first airbag (26) are connected by a supply hose (12).

9. The pancreatic tumor biopsy localization device according to claim 8, characterized in that: The first airbag (26) is located between two sets of push plates (22), the second airbag (27) is located between two linkage plates (9), and the linkage plate (9) forms a sliding structure with the moving groove (28) through the second airbag (27).

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