Multidimensional adjustable pressure hemostatic injection trolley for radionuclide dynamic imaging

Abstract

This invention discloses a multi-dimensional adjustable pressurized hemostasis injection cart for radionuclide dynamic imaging, relating to the field of nuclear medicine equipment technology. It includes a cart base, a support platform at the upper end of the base, lead protective vertical plates on the side of the support platform, and a lead protective top plate integrally formed at the upper end of the lead protective vertical plates. A lower support plate is fixedly mounted at the upper end of the support platform, and a pressure plate unit is rotatably mounted on the side of the support platform. A limit unit is provided between the upper pressure plate and the lower support plate in the pressure plate unit. A through groove is also formed in the middle of the upper pressure plate, and a positioning unit is slidably mounted inside the through groove. A translation component is provided at the lower end of the lead protective top plate, and a translation plate is provided at the lower end of the translation component. An illumination unit is fixedly mounted at the lower end of the translation plate at a position corresponding to the through groove. A clamping component is slidably mounted on the translation plate for clamping hemostatic cotton. This invention shortens the contact time between medical personnel and the medication, eliminating potential safety hazards.

Description

Technical Field

[0001] This invention relates to the field of nuclear medicine equipment technology, specifically to a multi-dimensional adjustable pressurized hemostasis injection cart for radionuclide dynamic imaging. Background Technology

[0002] Dynamic radionuclide imaging is a routine imaging technique performed in nuclear medicine departments. This technique requires medical staff to inject a marked radiopharmaceutical into the patient's vein next to the equipment and complete the operation at the point-of-care drug delivery vehicle. Existing point-of-care drug delivery vehicles are usually equipped with protective devices such as lead screens to isolate radioactive radiation. In actual clinical drug delivery, the patient needs to place their limb on a specific support structure, and medical staff use a puncture needle to inject the radiopharmaceutical solution into the patient's vein through a specific window or area of ​​the protective barrier. After removing the needle, hemostatic cotton is used to apply pressure to the puncture site to stop bleeding.

[0003] In current on-site drug administration procedures in nuclear medicine, the space obstructed by lead protective devices makes it difficult for medical staff to quickly and securely immobilize the limbs of patients with limited mobility and to accurately locate the puncture target. Furthermore, after the injection and needle removal, due to the patient's limited mobility, medical staff need to apply pressure to the hemostatic cotton ball on the patient's wound for an extended period of time. This significantly increases the duration of contact between medical staff and radioactive drugs and radiation sources after the injection, posing a significant safety hazard. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-dimensional adjustable pressure hemostasis injection cart specifically designed for radionuclide dynamic imaging.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: This invention provides a multi-dimensional adjustable pressure hemostasis injection cart specifically for radionuclide dynamic imaging, comprising: An injection cart base, wherein a support platform is provided at the upper end of the injection cart base, a lead protection vertical plate is provided on the side of the support platform, and a lead protection top plate is integrally formed at the upper end of the lead protection vertical plate; A lower support plate is fixedly installed at the upper end of the support platform, and a pressure plate unit is rotatably installed on the side of the support platform. A limit unit is provided between the upper pressure plate and the lower support plate in the pressure plate unit. A through groove is also provided in the middle of the upper pressure plate, and a positioning unit is slidably arranged inside the through groove; The lower end of the lead protective top plate is provided with a translation component, the lower end of the translation component is provided with a translation plate, and the lower end of the translation plate is fixedly provided with a lighting unit at the position corresponding to the through groove. A clamping assembly is slidably disposed on the translation plate, and the clamping assembly is used to clamp the hemostatic cotton.

[0006] As a preferred embodiment of the present invention, the pressure plate unit includes: The upper pressure plate is disposed opposite to the lower support plate; A connecting plate is fixedly connected to the upper pressure plate, and a rotating rod is fixedly connected to one end of the plate. Rotate the handle to fix it to the other end of the rotating rod; Several sets of fixing blocks are fixedly installed on the side of the support platform at positions corresponding to the rotating rod, and the rotating rod is rotatably connected to the fixing blocks.

[0007] As a preferred embodiment of the present invention, the positioning unit includes a sliding plate slidably disposed on the upper pressure plate and a positioning plate fixedly connected to the sliding plate and disposed inside the through groove; A positioning hole is provided in the middle of the positioning plate.

[0008] As a preferred embodiment of the present invention, the lighting unit includes a lighting housing, a positioning lamp disposed in the middle of the lighting housing, and a plurality of lighting lamps disposed outside the positioning lamp.

[0009] As a preferred embodiment of the present invention, the translation component includes: The first frame and the second frame are respectively fixedly installed on the lower end surface of the lead protective top plate; The first frame is internally fixedly provided with a slide bar and a first slider slidably disposed on the slide bar; The second frame is internally rotatably equipped with a threaded rod and a second slider that is driven by the threaded rod; The outer side of the second frame is also provided with a drive unit for driving the threaded rod to rotate.

[0010] As a preferred embodiment of the present invention, the two sides of the translation plate are respectively fixedly disposed at the lower ends of the first slider and the second slider; The side of the translation plate is provided with a sliding groove.

[0011] As a preferred embodiment of the present invention, the clamping assembly includes: The upper end of the U-shaped sliding frame is slidably disposed inside the slide groove, and the distance between the translation plate and the straight plate in the U-shaped sliding frame is greater than the height of the lighting unit; The telescopic tube is fixedly installed at the lower end of the U-shaped sliding frame; The clamping unit is fixedly installed at the lower end of the telescopic tube.

[0012] As a preferred embodiment of the present invention, when the U-shaped sliding frame slides to one end near the lighting unit, the clamping unit is located directly below the lighting unit.

[0013] As a preferred embodiment of the present invention, the clamping unit includes: The upper support block is fixedly installed at the lower end of the telescopic tube; The screw rod is rotatably mounted inside the upper support block; The lever is rotatably disposed inside the upper support block and is driven by the screw rod. The lower support block is fixedly connected to the upper support block; The gripper is provided in several sets and is rotatably mounted on the lower support block. The upper end of the gripper is driven by the screw rod.

[0014] As a preferred embodiment of the present invention, the limiting unit includes: A limiting post is hinged to the lower end of the upper pressure plate; The first magnetic suction unit is fixedly installed at the lower end of the limiting post; The second magnetic unit is fixedly disposed inside the placement groove of the lower support plate at the position corresponding to the limiting post. The magnetic properties of the second magnetic unit are opposite to those of the first magnetic unit.

[0015] The beneficial effects of this invention are: 1. This invention achieves rapid clamping of the patient's limb by rotating a pressure plate unit on the side of the support platform and having the upper pressure plate in the pressure plate unit cooperate with the lower support plate fixedly set at the upper end of the support platform. At the same time, an illumination unit is fixedly set at the position corresponding to the through groove at the lower end of the translation plate. The illumination unit uses the illumination shell and illumination lamp inside to provide supplemental lighting for the field of vision, and provides precise optical indication through the positioning lamp, so that medical staff can still achieve accurate positioning of the puncture target point in environments with poor visibility.

[0016] 2. This invention provides a translation component at the lower end of a lead-protected top plate, and a clamping component at the lower end of the translation component. The clamping component utilizes a U-shaped sliding frame, a telescopic tube, and a clamping unit with claws, levers, and screws to securely hold the hemostatic cotton. After injection and needle removal, the translation component drives a translation plate to move, precisely positioning the clamping component and the hemostatic cotton above the wound corresponding to the lighting unit and the through-slot. The telescopic tube extends to automatically press the hemostatic cotton onto the patient's wound for compression hemostasis. This solution replaces the traditional manual pressure method, avoiding the need for medical personnel to press the hemostatic cotton for extended periods. This allows medical personnel to quickly withdraw after needle removal, shortening the contact time between medical personnel and the medication and eliminating potential safety hazards. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention.

[0020] Figure 3 This is a partial structural diagram of the present invention.

[0021] Figure 4 This is a structural schematic diagram of the pressure plate unit.

[0022] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle.

[0023] Figure 6 This is a front view schematic diagram of the present invention.

[0024] Figure 7 This is a schematic diagram of the translation component.

[0025] Figure 8 for Figure 7 A magnified view of a portion of point B in the middle.

[0026] Figure 9 This is a plan view of the clamping unit away from the lighting unit.

[0027] Figure 10 This is a plan view of the clamping unit near the lighting unit.

[0028] Figure 11 This is a schematic diagram of the clamping unit.

[0029] Figure 12 This is a schematic diagram of the limiting unit.

[0030] Figure 13 for Figure 12 A magnified view of a portion of point C.

[0031] In the diagram: 1. Injection cart base; 11. Support platform; 111. Fixing block; 12. Lead protection vertical plate; 13. Lead protection top plate; 2. Lower support plate; 21. Placement slot; 3. Pressure plate unit; 31. Upper pressure plate; 311. Through slot; 32. Connecting plate; 33. Rotating rod; 34. Rotating handle; 4. Positioning unit; 41. Slide plate; 42. Positioning plate; 421. Positioning hole; 5. Translation assembly; 51. First frame; 52. Second frame; 53. Slide rod; 54. First slider; 55. Threaded rod 56. Second slider; 57. Drive unit; 6. Translation plate; 61. Slide groove; 7. Lighting unit; 71. Lighting housing; 72. Positioning lamp; 73. Lighting lamp; 8. Clamping assembly; 81. U-shaped sliding frame; 811. Straight plate; 82. Telescopic tube; 83. Clamping unit; 831. Upper support block; 832. Screw rod; 833. Toggle block; 834. Lower support block; 835. Gripper; 9. Limiting unit; 91. Limiting post; 92. First magnetic attraction unit; 93. Second magnetic attraction unit. Detailed Implementation

[0032] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] like Figures 1-3 As shown, the radionuclide dynamic imaging-specific multi-dimensional adjustable pressure hemostasis injection cart includes: The injection cart base 1 has a support platform 11 at its upper end, a lead protection vertical plate 12 on the side of the support platform 11, and a lead protection top plate 13 integrally formed at the upper end of the lead protection vertical plate 12. To protect medical personnel from the radiopharmaceuticals and radiation sources during radionuclide dynamic imaging, a lead shielding vertical plate 12 is provided on the side of the support platform 11. The lead shielding vertical plate 12 is used to effectively block radiation rays in the vertical direction. At the same time, a lead shielding top plate 13 is integrally formed at the upper end of the lead shielding vertical plate 12. The lead shielding top plate 13 is used to form a horizontal radiation shielding layer above the operating area. Together, they constitute a safe immediate drug administration operating space, allowing medical personnel to complete intravenous puncture operations behind a safe shield.

[0035] The upper end of the support platform 11 is fixedly provided with a lower support plate 2, and the side of the support platform 11 is rotatably provided with a pressure plate unit 3. A limit unit 9 is provided between the upper pressure plate 31 in the pressure plate unit 3 and the lower support plate 2. Considering that patients with limited mobility need to maintain absolute limb stability during intravenous drug administration to facilitate pellet injection, a lower support plate 2 is fixedly installed at the upper end of the support platform 11. The lower support plate 2 is used to directly support the patient's injection arm or related limb. Furthermore, a pressure plate unit 3 is rotatably installed on the side of the support platform 11. The pressure plate unit 3 is used to quickly clamp and firmly fix the patient's limb after it is properly positioned by flipping it, thereby preventing puncture failure or leakage of radioactive drug due to slight limb movement during the puncture process.

[0036] The upper pressure plate 31 is also provided with a through groove 311 in the middle position, and a positioning unit 4 is slidably arranged inside the through groove 311; In order to expose the patient's venous puncture point even when the upper and lower clamps are fixed, a through groove 311 is provided in the middle of the upper pressure plate 31. The through groove 311 provides medical staff with sufficient visual observation window and puncture needle operation space. At the same time, a positioning unit 4 is slidably arranged inside the through groove 311. The positioning unit 4 is used to flexibly adjust its position within the range of the through groove 311 so as to further define and accurately indicate the specific puncture target point position according to the blood vessel position of different patients.

[0037] The lower end of the lead protective top plate 13 is provided with a translation component 5, the lower end of the translation component 5 is provided with a translation plate 6, and the lower end of the translation plate 6 is fixedly provided with a lighting unit 7 at the position corresponding to the through groove 311. To achieve automated and precise delivery and compression of hemostatic consumables, a translation component 5 is provided at the lower end of the lead protective top plate 13. The translation component 5 is used to suspend above the operating area and provide horizontal driving force and movement guidance. A translation plate 6 is provided at the lower end of the translation component 5. The translation plate 6 is driven by the translation component 5 to move horizontally below the lead protective top plate 13, serving as a moving carrier for subsequent lighting and clamping mechanisms, realizing smooth switching of work positions. The lighting unit 7 moves with the translation plate 6 and is used to provide visual supplementary lighting and precise optical positioning indication to the through slot 311 and puncture target area below, so that medical staff can still clearly complete precise positioning and puncture operations behind the lead protective barrier where the visibility is poor.

[0038] A clamping component 8 is slidably mounted on the translation plate 6. The clamping component 8 is used to clamp the hemostatic cotton. After the injection needle is removed, the translation plate 6 is moved by the translation component 5, which drives the clamping component 8 and the hemostatic cotton in the sliding state to move precisely above the wound corresponding to the lighting unit 7 and the through groove 311 and automatically press down. This structure replaces the traditional manual pressing method, avoiding the problem of medical staff having to press the hemostatic cotton ball on the patient's wound for a long time. This allows medical staff to quickly withdraw after the needle is removed, greatly shortening the contact time between medical staff and the radioactive drug and eliminating great safety hazards.

[0039] Furthermore, such as Figures 3-5 As shown, the pressure plate unit 3 includes: The upper pressure plate 31 is disposed opposite to the lower support plate 2. When closed, the upper pressure plate 31 and the lower support plate 2 together form a limiting space for clamping the limbs of patients with limited mobility, ensuring the absolute stability of the patient's limbs during the radionuclide dynamic imaging injection process. The connecting plate 32 is fixedly connected to the upper pressure plate 31 and a rotating rod 33 is fixedly connected to one end of it. In order to enable the upper pressure plate 31 to have the freedom of movement to rotate around the axis and to provide sufficient physical avoidance space for the patient's arm when it is rotated and closed, the structure of the connecting plate 32 is preferably an L-shaped plate, and the connecting plate 32 is fixedly connected to the side of the upper pressure plate 31. Rotate handle 34 to fix it to the other end of the rotating rod 33; The side of the support platform 11 is fixedly provided with a number of fixing blocks 111 at the position corresponding to the rotating rod 33, and the rotating rod 33 is rotatably connected to the fixing blocks 111.

[0040] In actual clinical point-of-care drug administration scenarios, after medical staff place the patient's limb flat on the lower support plate 2, they only need to apply force to the rotating handle 34 to drive the rotating rod 33 to rotate within the fixed block 111, causing the L-shaped connecting plate 32 to drive the upper pressure plate 31 to flip downward and lock in place, thereby achieving rapid positioning of the patient's limb and effectively reducing the difficulty of manual operation for medical staff under the protection of lead protective devices.

[0041] Furthermore, such as Figure 5 As shown, the positioning unit 4 includes a sliding plate 41 slidably disposed on the upper pressure plate 31 and a positioning plate 42 fixedly connected to the sliding plate 41 and disposed inside the through groove 311; The positioning plate 42 has a positioning hole 421 in the middle position.

[0042] To ensure that the positioning structure can fit snugly against the patient's limb and move smoothly within a defined trajectory, the positioning plate 42 is embedded and disposed inside the through groove 311. It can flexibly and linearly slide along the surface of the upper pressure plate 31 following the slide plate 41, allowing medical personnel to quickly find and lock the optimal puncture area along the extension direction of the through groove 311 without moving the patient's fixed arm.

[0043] The positioning hole 421 is used to further narrow and precisely define the location of the vein target point to be punctured within the open space of the through groove 311.

[0044] In actual clinical point-of-care drug administration scenarios, when medical staff observe through the lead protective device, they can manually move the slide plate 41 to make the positioning hole 421 accurately align with the patient's vein segment, and then use the physical boundary of the hole to guide the puncture needle to accurately puncture the blood vessel. This greatly reduces the visual error and blind puncture risk caused by the space obstruction of the lead screen.

[0045] To improve the ease of operation of the positioning unit 4 during dynamic adjustment and the safety isolation effect of the operating area, a protective protrusion is provided on the upper surface of the slide plate 41. The protective protrusion not only provides a non-slip pushing and pulling force point for medical staff when wearing heavy anti-radiation gloves, but also makes it easy to quickly and accurately move the slide plate 41 with one hand.

[0046] Furthermore, such as Figures 6-8 As shown, the lighting unit 7 includes a lighting housing 71, a positioning lamp 72 disposed in the middle of the lighting housing 71, and several sets of lighting lamps 73 disposed outside the positioning lamp 72. It should be noted that the lighting unit 7 is disposed at the lower end of the through groove 311. Therefore, the movement of the lighting unit 7 is always along the length direction of the through groove 311, which can ensure that the lighting unit 7 can be quickly aligned with the positioning unit 4.

[0047] To achieve precise optical guidance for venipuncture targets, a positioning lamp 72 located in the middle of the lighting housing 71 projects a highly focused beam of light or a light spot of a specific shape downwards. This specific optical indicator light spot can directly illuminate and pass through the positioning hole 421 opened in the middle of the positioning plate 42. This allows medical personnel to quickly and accurately locate the puncture point without contact by simply observing the overlap between the light spot and the vein to be punctured in a lead-screen isolation environment where visibility is severely limited. This greatly reduces the risk of blind puncture due to visual deviation.

[0048] To ensure sufficient and evenly distributed shadowless ambient light in the entire intravenous puncture operation area, several sets of lighting fixtures 73, located outside the positioning light fixture 72, are used to provide large-area floodlight illumination to the through-slot 311 and the area around the patient's limb. This allows the details of the patient's skin, the characteristics of blood vessel orientation, and the medical puncture instruments around the positioning hole 421 to be clearly visible. Furthermore, the lighting fixtures 73 and the positioning light fixture 72 work closely together in terms of physical space and optical function, forming a synergistic visual assistance effect of peripheral floodlighting and central focused positioning. This significantly improves the accuracy of needle administration and the overall safety of medical personnel during the point-of-care drug delivery operation at the nuclear medicine machine.

[0049] Optionally, the positioning light 72 uses a red laser diode, which emits a red laser beam with high brightness, good directionality and small spot size, which can form a clearly visible red light spot on the patient's skin surface, making it easier for medical staff to accurately identify the puncture target behind the lead protective barrier. The lighting 73 uses white LED beads with high color rendering.

[0050] Furthermore, such as Figures 6-7 As shown, the translation component 5 includes: The first frame 51 and the second frame 52 are respectively fixedly installed on the lower end surface of the lead protective top plate 13; The first frame 51 is internally fixedly provided with a slide bar 53 and a first slider 54 slidably disposed on the slide bar 53; The second frame 52 is internally rotatably provided with a threaded rod 55 and a second slider 56 that is driven by the threaded rod 55; The outer side of the second frame 52 is also provided with a drive unit 57 for driving the threaded rod 55 to rotate.

[0051] With the above structure, the translation component 5 can drive the translation plate 6 to move along a preset straight trajectory below the lead protective top plate 13, thereby driving the lighting unit 7 fixed at the lower end of the translation plate 6 and the clamping component 8 slidably disposed on the translation plate 6 to move together, so that the lighting unit 7 can be aligned with different positions of the through groove 311, and provide a precise position adjustment basis for the subsequent delivery of hemostatic cotton by the clamping component 8, effectively meeting the requirements for equipment movement accuracy and stability in nuclear medicine operations.

[0052] Furthermore, such as Figures 6-8 As shown, the two sides of the translation plate 6 are respectively fixedly disposed at the lower ends of the first slider 54 and the second slider 56; The side of the translation plate 6 is provided with a sliding groove 61.

[0053] The two sides of the translation plate 6 are respectively fixedly installed at the lower ends of the first slider 54 and the second slider 56. This bridging installation structure allows the translation plate 6 to be stably suspended above the main operating area below the lead protective top plate 13. By opening the sliding groove 61 of the above structure on the side of the translation plate 6, the clamping assembly 8 installed laterally can not only follow the translation plate 6 to make a large-range overall translational movement, but also make local horizontal relative sliding under the guidance constraint of the sliding groove 61.

[0054] Furthermore, such as Figure 11 As shown, the clamping assembly 8 includes: The upper end of the U-shaped sliding frame 81 is slidably disposed inside the slide groove 61, and the distance between the translation plate 6 and the straight plate 811 in the U-shaped sliding frame 81 is greater than the height of the lighting unit 7. Telescopic tube 82 is fixedly installed at the lower end of the U-shaped sliding frame 81; The clamping unit 83 is fixedly installed at the lower end of the telescopic tube 82.

[0055] To ensure that no physical collisions or mechanical interference occur between the functional components beneath the compact lead-protected top plate 13, the distance between the translation plate 6 and the straight plate 811 in the U-shaped sliding frame 81 is strictly set to be greater than the height of the lighting unit 7. This allows the straight plate 811 to perfectly pass over the lighting unit 7 fixed below the translation plate 6 when the U-shaped sliding frame 81 slides along the slide groove 61. The straight plate 811 can be made of transparent material, thus ensuring both the integrity of the optical illumination field of view and the absolute smoothness of the clamping component 8's running trajectory. The telescopic tube 82 adopts a corrugated shaped tube structure. The corrugated shaped tube is made of a material with plastic deformation capability, and its tube wall has several annular corrugations distributed along the axial direction.

[0056] When the operator pulls down the clamping unit 83, the corrugated shaping tube extends in its axial direction, and due to the plasticity of the tube wall material, the corrugated shaping tube can maintain its shape at any position after extension, so that the clamping unit 83 is suspended at the required height to continuously compress the hemostatic cotton. When the clamping unit 83 needs to be reset, the operator pushes the clamping unit 83 upward, and the corrugated shaping tube is compressed in its axial direction, and also maintains its shape in any position after compression.

[0057] Furthermore, such as Figures 9-10 As shown, when the U-shaped sliding frame 81 slides to one end near the lighting unit 7, the clamping unit 83 is located directly below the lighting unit 7.

[0058] The end of the slide groove 61 on the side of the translation plate 6 forms an absolute physical coordinate reference point, so that when the U-shaped sliding frame 81 is pushed horizontally along the slide groove 61 to the limit end, it can force the clamping unit 83, which was originally located in a side avoidance position, to be precisely moved to a vertical space that is completely coaxial with the lighting unit 7.

[0059] In actual clinical applications, medical staff first use the light emitted by the illumination unit 7 in conjunction with the through groove 311 to perform precise puncture and injection of medication at the patient's venous target point. At the moment of needle removal after injection, simply push and pull the U-shaped sliding frame 81 to slide it to the side end near the illumination unit 7 and lock it in place. The mechanical limit ensures that the clamping unit 83 and the hemostatic cotton it holds are aligned with the wound position just illuminated and locked without any deviation. Then, the clamping unit 83 holding the hemostatic cotton is pulled down so that the hemostatic cotton is pressed on the wound.

[0060] Furthermore, such as Figure 11 As shown, the clamping unit 83 includes: The upper support block 831 is fixedly installed at the lower end of the telescopic tube 82; The screw rod 832 is rotatably disposed inside the upper support block 831; The lever 833 is rotatably disposed inside the upper support block 831 and is driven by the screw rod 832; The lower support block 834 is fixedly connected to the upper support block 831; The grippers 835 are arranged in several groups and rotatably mounted on the lower support block 834. The upper end of the grippers 835 is driven by the screw rod 832. Specifically, the upper end of each gripper 835 is provided with a gear structure that drives the screw rod 832. When the screw rod 832 rotates, its external thread drives the gear structure at the upper end of the gripper 835 to rotate, thereby causing the lower ends of each gripper 835 to move closer or further away from each other synchronously, realizing the operation of gripping or releasing the hemostatic cotton.

[0061] With the above structure, the operator only needs to manually move the lever 833 behind the protective barrier to control the gripper 835 to clamp and release the hemostatic cotton through a purely mechanical transmission method. This design avoids the introduction of electrical components in the radiation environment, ensuring the reliability of the equipment and the ease of operation. At the same time, the gear transmission structure of the gripper 835 can ensure the synchronous action of multiple grippers, achieving a stable clamping of the hemostatic cotton.

[0062] It should be noted that before injection, the operator needs to place a hemostatic cotton ball at the lower end of the clamp 835 in the clamping unit 83. After the hemostasis is completed, the operator pulls up and resets the clamping unit 83, then reverses the lever 833, and the hemostatic cotton will fall into the collection box at the lower end of the clamping unit 83. The specific structure and working process of the collection box will not be described in detail.

[0063] Furthermore, such as Figures 12-13 As shown, the limiting unit 9 includes: The limiting post 91 is hinged to the lower end of the upper pressure plate 31; The first magnetic attraction unit 92 is fixedly disposed at the lower end of the limiting post 91; The second magnetic unit 93 is fixedly disposed inside the placement groove 21 at the position corresponding to the limiting post 91 on the lower support plate 2. The magnetic properties of the second magnetic unit 93 are opposite to those of the first magnetic unit 92.

[0064] The upper pressure plate 31 is used to press and clamp the patient's limb surface from above, while the limiting unit 9 is used to lock the position of the upper pressure plate 31 after it is flipped downward and reaches a suitable clamping force, maintaining the continuous clamping force between the upper pressure plate 31 and the lower support plate 2, ensuring that the patient's limb can be fixed firmly and comfortably on the support platform 11 without the patient having to exert force to maintain the position.

[0065] When the upper pressure plate 31 swings towards the lower support plate 2 to the pressing position, the operator can push the limiting post 91 downward to make it swing to the vertical state. At this time, the first magnetic suction unit 92 at the lower end of the limiting post 91 can extend into the placement groove 21 of the lower support plate 2 and attract each other with the second magnetic suction unit 93 in the groove, thereby locking the upper pressure plate 31 in the closed position to maintain continuous clamping of the patient's limb. When it is necessary to release the patient's limb, the operator only needs to apply external force to overcome the magnetic attraction and pull the limiting post 91 upward from the placement slot 21, so that the first magnetic attraction unit 92 and the second magnetic attraction unit 93 are separated from each other, thereby releasing the lock on the upper pressure plate 31.

[0066] Work process: First, the patient places the arm to be injected on the lower support plate 2 of the support platform 11. The medical staff, behind the lead protective barrier, operates the rotating handle 34 to drive the upper pressure plate 31 to flip down and press it onto the patient's arm. Then, the limiting post 91 is moved to use the mutual attraction of the upper and lower magnetic units to firmly lock the patient's arm. Before the injection, the operator manually moves the lever 833 of the clamping unit 83 to control the clamp 835 to close and grab a piece of hemostatic cotton in advance. Next, the positioning unit 4 in the through groove 311 of the sliding upper pressure plate 31 is used to align the positioning hole 421 with the vein area. At this time, the lighting unit 7 below the translation plate 6 is activated, the outer lighting fixture 73 provides supplementary light, and the middle positioning fixture 72 projects a red laser spot that passes through the positioning hole 421 to accurately lock the puncture target. With sufficient field of vision and clear optical guidance, medical staff can complete the venipuncture and injection of radioactive drug. Next, at the moment the injection is completed and the needle is removed, the medical staff pushes the U-shaped sliding frame 81 so that it slides along the slide groove 61 to the limiting end near the lighting unit 7. Relying on the mechanical dead limit, the clamping unit 83 (and the hemostatic cotton inside) is precisely replaced above the wound that the lighting fixture 73 was just aligned with. Then, the operator pulls down the corrugated telescopic tube 82 with plastic deformation ability so that the hemostatic cotton is precisely pressed against the patient's puncture wound to complete the pressure hemostasis. The medical staff can then quickly withdraw to avoid radiation. Finally, after the hemostasis time is over, the operator pushes the clamping unit 83 upward to compress and reset the telescopic tube 82. Then, the operator moves the lever 833 in the opposite direction to open the gripper 835, allowing the bloody hemostatic cotton to fall automatically into the collection box below. Finally, the operator moves the limiting post 91 upward to release the magnetic lock, lifts the upper pressure plate 31, and the patient can then remove their arm, completing the entire imaging drug delivery process.

[0067] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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 multi-dimensional adjustable pressure hemostasis injection cart specifically designed for radionuclide dynamic imaging, characterized in that: include: Injection cart base (1), the upper end of the injection cart base (1) is provided with a support platform (11), the side of the support platform (11) is provided with a lead protection vertical plate (12), and the upper end of the lead protection vertical plate (12) is integrally formed with a lead protection top plate (13). The upper end of the support platform (11) is fixedly provided with a lower support plate (2), and the side of the support platform (11) is rotatably provided with a pressure plate unit (3). A limit unit (9) is provided between the upper pressure plate (31) in the pressure plate unit (3) and the lower support plate (2). The upper pressure plate (31) is also provided with a through groove (311) in the middle position, and a positioning unit (4) is slidably arranged inside the through groove (311). The lower end of the lead protective top plate (13) is provided with a translation component (5), the lower end of the translation component (5) is provided with a translation plate (6), and the lower end of the translation plate (6) is fixedly provided with a lighting unit (7) at the position corresponding to the through groove (311). A clamping assembly (8) is slidably disposed on the translation plate (6), and the clamping assembly (8) is used to clamp the hemostatic cotton.

2. The radionuclide dynamic imaging-specific multi-dimensional adjustable pressure hemostasis injection cart according to claim 1, characterized in that, The pressure plate unit (3) includes: The upper pressure plate (31) is disposed opposite to the lower support plate (2); A connecting plate (32) is fixedly connected to the upper pressure plate (31), and a rotating rod (33) is fixedly connected to one end of the plate. Rotate the handle (34) to fix it to the other end of the rotating rod (33); The side of the support platform (11) is fixedly provided with a number of fixed blocks (111) at the position corresponding to the rotating rod (33), and the rotating rod (33) is rotatably connected to the fixed blocks (111).

3. The radionuclide dynamic imaging-specific multi-dimensional adjustable pressure hemostasis injection cart according to claim 2, characterized in that, The positioning unit (4) includes a sliding plate (41) that is slidably disposed on the upper pressure plate (31) and a positioning plate (42) that is fixedly connected to the sliding plate (41) and disposed inside the through groove (311). The positioning plate (42) has a positioning hole (421) in the middle position.

4. The radionuclide dynamic imaging-specific multi-dimensional adjustable pressure hemostasis injection cart according to claim 3, characterized in that, The lighting unit (7) includes a lighting housing (71), a positioning lamp (72) located in the middle of the lighting housing (71), and several sets of lighting lamps (73) located outside the positioning lamp (72).

5. The radionuclide dynamic imaging-specific multi-dimensional adjustable pressure hemostasis injection cart according to claim 4, characterized in that, The translation component (5) includes: The first frame (51) and the second frame (52) are respectively fixedly installed on the lower end surface of the lead protective top plate (13); The first frame (51) is fixedly provided with a slide bar (53) and a first slider (54) slidably disposed on the slide bar (53); The second frame (52) is rotatably provided with a threaded rod (55) and a second slider (56) that is driven by the threaded rod (55). The outer side of the second frame (52) is also provided with a drive unit (57) for driving the threaded rod (55) to rotate.

6. The radionuclide dynamic imaging-specific multi-dimensional adjustable pressure hemostasis injection cart according to claim 5, characterized in that, The two sides of the translation plate (6) are respectively fixedly disposed at the lower ends of the first slider (54) and the second slider (56); The side of the translation plate (6) is provided with a sliding groove (61).

7. The radionuclide dynamic imaging-specific multi-dimensional adjustable pressure hemostasis injection cart according to claim 6, characterized in that, The clamping assembly (8) includes: U-shaped sliding frame (81), the upper end of the U-shaped sliding frame (81) is slidably disposed inside the slide groove (61), and the distance between the translation plate (6) and the straight plate (811) in the U-shaped sliding frame (81) is greater than the height of the lighting unit (7); Telescopic tube (82) is fixedly installed at the lower end of the U-shaped sliding frame (81); The clamping unit (83) is fixedly installed at the lower end of the telescopic tube (82).

8. The radionuclide dynamic imaging-specific multi-dimensional adjustable pressure hemostasis injection cart according to claim 7, characterized in that, When the U-shaped sliding frame (81) slides to one end near the lighting unit (7), the clamping unit (83) is located directly below the lighting unit (7).

9. The radionuclide dynamic imaging-specific multi-dimensional adjustable pressure hemostasis injection cart according to claim 7, characterized in that, The clamping unit (83) includes: The upper support block (831) is fixedly installed at the lower end of the telescopic tube (82); The screw rod (832) is rotatably disposed inside the upper support block (831); The lever (833) is rotatably disposed inside the upper support block (831) and is driven by the screw rod (832); The lower support block (834) is fixedly connected to the upper support block (831); The gripper (835) is provided in several sets and is rotatably mounted on the lower support block (834). The upper end of the gripper (835) is connected to the screw rod (832) for transmission.

10. The radionuclide dynamic imaging-specific multi-dimensional adjustable pressure hemostasis injection cart according to claim 1, characterized in that, The limiting unit (9) includes: A limiting post (91) is hinged to the lower end of the upper pressure plate (31); The first magnetic suction unit (92) is fixedly disposed at the lower end of the limiting post (91); The second magnetic unit (93) is provided in the lower support plate (2) at the position corresponding to the limiting post (91). The second magnetic unit (93) is fixedly disposed inside the placement groove (21). The magnetic properties of the second magnetic unit (93) are opposite to those of the first magnetic unit (92).

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