Puncture fixator for ultrasound-guided radiofrequency ablation

Abstract

The utility model relates to the technical field of tumor ablation, in particular to an ultrasound-guided radiofrequency ablation puncture fixator which comprises a fixing frame, a moving plate, a fixing ring and an adjusting mechanism, the adjusting mechanism comprises four sliding assemblies and a locking assembly, each sliding assembly comprises a supporting frame, a rotating roller and a pulley, the fixing frame is provided with two sliding grooves, and the fixing frame is provided with two sliding grooves. The fixing ring is fixedly connected with the moving plate, the four sliding assemblies are arranged at the two ends of the moving plate and located at the two ends of the moving plate respectively, the supporting frame is fixedly connected with the moving plate, the rotating roller is rotationally connected with the supporting frame and the pulley, the pulley is located in the supporting frame, and the locking assembly is arranged below the moving plate. And the position of the movable plate on the fixing frame is adjusted through the adjusting mechanism, the adjusting process is simple, and then the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of tumor ablation technology, and in particular to a puncture and fixation device for ultrasound-guided radiofrequency ablation. Background Technology

[0002] Currently, the number of CT-guided cases is gradually increasing, and individual differences in people, such as body shape and size, result in differences in the angle of needle insertion.

[0003] Patent application CN202537661U discloses a CT-guided radiofrequency ablation puncture and fixation device, including a fixation frame and a locator. This device can be connected and fixed to the distal electrode of the radiofrequency ablation needle. Based on a general understanding of the lesion location, the locator and CT images clarify the specific location of the lesion. Guided by the puncture tube, the radiofrequency ablation treatment electrode is inserted into the lesion tissue to perform the treatment operation, thereby improving the safety and accuracy of the puncture and reducing the operator's workload.

[0004] However, in the existing technology, the process of moving and fixing the positioner on the fixed frame is relatively complicated, resulting in low practicality of the device. Utility Model Content

[0005] The purpose of this invention is to provide an ultrasound-guided radiofrequency ablation puncture fixation device, which aims to solve the problem that in the prior art, the process of moving and fixing the locator on the fixation frame is relatively troublesome, resulting in the low practicality of the device.

[0006] To achieve the above objectives, this utility model provides a puncture and fixation device for ultrasound-guided radiofrequency ablation, comprising a fixation frame, a movable plate, a fixation ring, and an adjustment mechanism. The adjustment mechanism includes four sliding components and a locking component. Each sliding component includes a support frame, a rotating roller, and a pulley. The fixation frame has two sliding grooves. The fixation ring is fixedly connected to the movable plate. The four sliding components are disposed at both ends of the movable plate and are respectively located at both ends of the movable plate. The support frame is fixedly connected to the movable plate. The rotating roller is rotatably connected to the support frame and the pulley, and the pulley is located inside the support frame. The locking component is disposed below the movable plate.

[0007] The locking assembly includes a fixed plate, a limiting rod, and a telescopic kit. The fixed frame has multiple limiting holes. The fixed plate is fixedly connected to one end of the movable frame and is located below the movable frame. The limiting rod is slidably connected to the fixed plate, and one end of the limiting rod is located in the limiting hole. The telescopic kit is disposed between the limiting rod and the fixed plate.

[0008] The telescopic kit includes a telescopic spring and a fixing block. The fixing block is fixedly connected to the end of the limiting rod away from the limiting hole. The two ends of the telescopic spring are fixedly connected to the fixing plate and the fixing block, respectively, and the limiting rod is located inside the telescopic spring.

[0009] The adjustment mechanism further includes two limiting components, which are respectively disposed at both ends of the fixed frame and the movable plate.

[0010] The limiting component includes a mounting plate, a locking block, and a locking strip. The mounting plate is fixedly connected to one end of the movable plate. The locking block is fixedly connected to the mounting plate and located below the mounting plate. The locking strip is fixedly connected to one end of the fixing frame and is slidably connected to the locking block.

[0011] This invention relates to an ultrasound-guided radiofrequency ablation puncture fixation device. During surgery, the patient lies within the fixation frame. The connection between the moving plate and the fixation frame is released via a locking assembly. The doctor pushes the moving plate, causing four pulleys beneath it to slide within two grooves. The moving plate slides on the fixation frame until it reaches the patient's puncture position. At this point, the fixation ring is aligned with the puncture position. The locking assembly then reconnects the moving plate and the fixation frame. The doctor inserts the puncture tube into the fixation ring and performs the puncture. The device simplifies the adjustment of the moving plate's position, thus increasing its practicality. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the puncture and fixation device for ultrasound-guided radiofrequency ablation of this utility model.

[0014] Figure 2 This is the utility model Figure 1 Enlarged view of the local structure at point A.

[0015] Figure 3 This is a schematic diagram of the puncture and fixation device for ultrasound-guided radiofrequency ablation of this utility model from another direction.

[0016] Figure 4 This is a side view of the ultrasound-guided radiofrequency ablation puncture and fixation device of this utility model.

[0017] 101-Fixed frame, 102-Moving plate, 103-Mounting plate, 104-Clocking block, 105-Clocking strip, 106-Support frame, 107-Rotating roller, 108-Pulley, 109-Slide groove, 110-Fixed plate, 111-Fixed block, 112-Telescopic spring, 113-Limiting hole, 114-Fixed ring, 115-Limiting rod. Detailed Implementation

[0018] Please refer to Figures 1-2, where, Figure 1 This is a schematic diagram of the puncture and fixation device for ultrasound-guided radiofrequency ablation of this utility model. Figure 2 This is the utility model Figure 1 Enlarged view of the local structure at point A. Figure 3 This is a schematic diagram of the ultrasound-guided radiofrequency ablation puncture and fixation device of this utility model from another direction. Figure 4 This is a side view of the ultrasound-guided radiofrequency ablation puncture and fixation device of this utility model.

[0019] This utility model provides a puncture and fixation device for ultrasound-guided radiofrequency ablation, including a fixation frame 101, a moving plate 102, a fixing ring 114, and an adjustment mechanism. The adjustment mechanism includes four sliding components, two limiting components, and a locking component. The sliding components include a support frame 106, a rotating roller 107, and a pulley 108. The fixation frame 101 has two sliding grooves 109. The locking component includes a fixing plate 110, a limiting rod 115, and a telescopic assembly. The fixation frame 101 has multiple limiting holes 113. The telescopic assembly includes a telescopic spring 112 and a fixing block 111. The limiting component includes a mounting plate 103, a locking block 104, and a locking strip 105. The aforementioned solution solves the problem in the prior art where the process of moving and fixing the locator on the fixation frame 101 is cumbersome, resulting in low practicality of the device.

[0020] In this embodiment, the fixing ring 114 is fixedly connected to the moving plate 102. Four sliding components are disposed at both ends of the moving plate 102, respectively. The support frame 106 is fixedly connected to the moving plate 102. The rotating roller 107 is rotatably connected to the support frame 106 and the pulley 108, with the pulley 108 located within the support frame 106. The locking component is disposed below the moving plate 102. When using this device for surgery, the patient lies within the fixing frame 101, and the locking component releases the connection between the moving plate 102 and the fixing frame 102. The connection between the two devices is as follows: the doctor pushes the movable plate 102, and the four pulleys 108 below the movable plate 102 slide in the two grooves 109 respectively. The movable plate 102 slides on the fixed frame 101 until it moves to the patient's puncture position. At this time, the fixed ring 114 is aligned with the patient's puncture position. Then, the movable plate 102 and the fixed frame 101 are connected by the locking component. The doctor inserts the puncture tube into the fixed ring 114 and performs the puncture surgery on the patient. The process of adjusting the position of the movable plate 102 is simple, which increases the practicality of the device.

[0021] Furthermore, the fixed plate 110 is fixedly connected to one end of the movable frame and is located below the movable frame. The limiting rod 115 is slidably connected to the fixed plate 110, and one end of the limiting rod 115 is located in the limiting hole 113. The telescopic kit is disposed between the limiting rod 115 and the fixed plate 110.

[0022] Furthermore, the fixing block 111 is fixedly connected to the end of the limiting rod 115 away from the limiting hole 113, and the two ends of the telescopic spring 112 are fixedly connected to the fixing plate 110 and the fixing block 111 respectively, and the limiting rod 115 is located inside the telescopic spring 112.

[0023] In this embodiment, when performing surgery using this device, the patient lies inside the fixation frame 101 and pulls the fixation block 111 away from the fixation plate 110. The fixation block 111 drives the limiting rod 115 to move until the limiting rod 115 leaves the limiting hole 113. At this time, the telescopic spring 112 is in a stretched state, and the connection between the moving plate 102 and the fixation frame 101 is released. The doctor pushes the moving plate 102, and the four pulleys 108 below the moving plate 102 slide in the two sliding grooves 109 respectively. The moving plate 102 slides on the fixation frame 101, straight... Once the movable plate 102 is moved to the patient's puncture position, the fixing ring 114 is aligned with the patient's puncture position. At this point, the fixing block 111 is released, and the telescopic spring 112 contracts under its own elastic potential energy, driving the limiting rod 115 to move towards the limiting hole 113. The limiting rod 115 is inserted into the corresponding limiting hole 113, and the movable plate 102 and the fixing frame 101 are re-fixed together. The doctor inserts the puncture tube into the fixing ring 114 and performs the puncture surgery on the patient. The process of adjusting the position of the movable plate 102 is simple, thus increasing the practicality of the device.

[0024] Furthermore, the two limiting components are respectively disposed at both ends of the fixed frame 101 and the movable plate 102.

[0025] Furthermore, the mounting plate 103 is fixedly connected to one end of the movable plate 102, the locking block 104 is fixedly connected to the mounting plate 103 and located below the mounting plate 103, the locking strip 105 is fixedly connected to one end of the fixing frame 101, and the locking strip 105 is slidably connected to the locking block 104.

[0026] In this embodiment, when performing surgery using this device, the patient lies inside the fixation frame 101 and pulls the fixation block 111 away from the fixation plate 110. The fixation block 111 drives the limiting rod 115 to move until the limiting rod 115 leaves the limiting hole 113. At this time, the telescopic spring 112 is in a stretched state, and the connection between the moving plate 102 and the fixation frame 101 is released. The doctor pushes the moving plate 102, and the four pulleys 108 below the moving plate 102 slide in the two sliding grooves 109 respectively. The moving plate 102 slides on the fixation frame 101, and the two locking blocks 104 slide below the two locking strips 105 respectively. The two locking strips 105 and the two locking blocks 104 exert pressure on the moving plate 102. The movement of the moving plate 102 serves as a limiting guide, ensuring that the moving plate 102 maintains the correct trajectory during movement, thus increasing the structural stability of the device. The moving plate 102 moves to the patient's puncture position, at which point the fixing ring 114 is aligned with the puncture position. At this point, the fixing block 111 is released, and the telescopic spring 112 contracts under its own elastic potential energy, driving the limiting rod 115 towards the limiting hole 113. The limiting rod 115 inserts into the corresponding limiting hole 113, and the moving plate 102 and the fixing frame 101 are re-fixed together. The doctor inserts the puncture tube into the fixing ring 114 and performs the puncture surgery on the patient. The process of adjusting the position of the moving plate 102 is simple, thus increasing the practicality of the device.

[0027] When performing surgery using this invention, the patient lies inside the fixation frame 101 and pulls the fixation block 111 away from the fixation plate 110. The fixation block 111 moves the limiting rod 115 until the limiting rod 115 leaves the limiting hole 113. At this time, the telescopic spring 112 is in a stretched state, and the connection between the moving plate 102 and the fixation frame 101 is released. The doctor pushes the moving plate 102, and the four pulleys 108 below the moving plate 102 slide in the two sliding grooves 109 respectively, allowing the moving plate 102 to slide on the fixation frame 101. The device continues until the movable plate 102 moves to the patient's puncture position. At this point, the fixing ring 114 is aligned with the patient's puncture position. The fixing block 111 is then released, and the telescopic spring 112 contracts under its own elastic potential energy, driving the limiting rod 115 to move towards the limiting hole 113. The limiting rod 115 is inserted into the corresponding limiting hole 113, and the movable plate 102 and the fixing frame 101 are re-fixed together. The doctor inserts the puncture tube into the fixing ring 114 and performs the puncture surgery on the patient. The process of adjusting the position of the movable plate 102 is simple, thus increasing the practicality of the device.

[0028] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments, and equivalent variations made in accordance with the claims of this application, still fall within the scope of this application.

Claims

1. A puncture and fixation device for ultrasound-guided radiofrequency ablation, comprising a fixation frame, characterized in that, It also includes a movable plate, a fixed ring, and an adjustment mechanism. The adjustment mechanism includes four sliding components and a locking component. The sliding components include a support frame, a rotating roller, and a pulley. The fixed frame has two sliding grooves. The fixed ring is fixedly connected to the movable plate. The four sliding components are disposed at both ends of the movable plate and are respectively located at both ends of the movable plate. The support frame is fixedly connected to the movable plate. The rotating roller is rotatably connected to the support frame and the pulley, and the pulley is located inside the support frame. The locking component is disposed below the movable plate.

2. The ultrasound-guided radiofrequency ablation puncture and fixation device as described in claim 1, characterized in that, The locking assembly includes a fixed plate, a limiting rod, and a telescopic kit. The fixed frame has multiple limiting holes. The fixed plate is fixedly connected to one end of the movable frame and is located below the movable frame. The limiting rod is slidably connected to the fixed plate, and one end of the limiting rod is located in the limiting hole. The telescopic kit is disposed between the limiting rod and the fixed plate.

3. The ultrasound-guided radiofrequency ablation puncture and fixation device as described in claim 2, characterized in that, The telescopic kit includes a telescopic spring and a fixing block. The fixing block is fixedly connected to the end of the limiting rod away from the limiting hole. The two ends of the telescopic spring are fixedly connected to the fixing plate and the fixing block, respectively, and the limiting rod is located inside the telescopic spring.

4. The ultrasound-guided radiofrequency ablation puncture and fixation device as described in claim 3, characterized in that, The adjustment mechanism also includes two limiting components, which are respectively disposed at both ends of the fixed frame and the movable plate.

5. The ultrasound-guided radiofrequency ablation puncture and fixation device as described in claim 4, characterized in that, The limiting component includes a mounting plate, a locking block, and a locking strip. The mounting plate is fixedly connected to one end of the movable plate. The locking block is fixedly connected to the mounting plate and located below the mounting plate. The locking strip is fixedly connected to one end of the fixing frame and is slidably connected to the locking block.

Images