CT-guided thoracic and abdominal tumor radiofrequency ablation fixing support

Abstract

A CT-guided thoracic and abdominal tumor radiofrequency ablation fixing support comprises a bottom plate, a first track, a second track and a clamping mechanism. A guide rail is arranged on one side of the bottom plate in the length direction of the bottom plate. The first track comprises a supporting part and an arc-shaped track; the lower end of the supporting part is slidably mounted on the guide rail, and one end of the arc-shaped rail is connected to the upper end of the supporting part, so that the arc-shaped rail is located over the bottom plate; the second rail is slidably arranged on the arc-shaped rail in the radial direction of the arc-shaped rail, so that the second rail can slide along the arc-shaped rail; the clamping mechanism is slidably installed on the second rail in the longitudinal direction of the second rail and used for clamping the radio frequency needle handle. The CT-guided thoracic and abdominal tumor radiofrequency ablation needle fixing device effectively solves the problems that a traditional fixing device is inaccurate in position control and insufficient in stability, the accuracy, stability and operation convenience of thoracic and abdominal tumor radiofrequency ablation needle fixing under CT guidance are remarkably improved, and a safer and more effective treatment scheme is provided for a patient.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, and it is a kind of CT under the guidance of thoracic and abdominal tumor radiofrequency ablation fixed support. BACKGROUND

[0002] In modern medicine, the treatment method of thoracic and abdominal tumor is increasingly diversified, wherein radiofrequency ablation (RFA) as a kind of minimally invasive treatment technology, because of its small trauma, quick recovery, less complications and other advantages, gradually becomes the important means of tumor treatment. Radiofrequency ablation passes through high-frequency current to be delivered to tumor tissue, and heat effect is generated, thereby leading to the coagulative necrosis of tumor cell. However, in the implementation process of radiofrequency ablation, accurate positioning of tumor and stable fixation of needle are crucial. At present, CT-guided radiofrequency ablation technology has been widely used in clinic, although CT guidance can provide relatively clear image, but in actual operation, due to the complexity of tumor location, size and surrounding tissue structure, the doctor may face the problem of inaccurate positioning in the implementation process, thereby affecting the treatment effect. In the process of radiofrequency ablation, the fixation of needle is a key link. The current fixing device is mostly simple manual clamping or relies on manual control of physician, which is easy to cause the movement of needle in the operation process, and then affect the accuracy and effectiveness of ablation. SUMMARY

[0003] To solve the technical problems existing in the above-mentioned technology, in view of this, it is necessary to provide a kind of CT under the guidance of thoracic and abdominal tumor radiofrequency ablation fixed support.

[0004] A kind of CT under the guidance of thoracic and abdominal tumor radiofrequency ablation fixed support, including bottom plate, first track, second track, clamping mechanism;

[0005] The side of the bottom plate is provided with guide rail along the length direction of bottom plate;

[0006] The first track includes support part, arc-shaped track;The lower end of the support part is slidably installed on the guide rail, and one end of the arc-shaped track is connected to the upper end of the support part, so that the arc-shaped track is located directly above the bottom plate;

[0007] The second track is slidably arranged on the arc-shaped track along the radial direction of the arc-shaped track, so that the second track can slide along the arc-shaped track;

[0008] The clamping mechanism is slidably installed on the second track along the longitudinal direction of the second track, and the clamping mechanism is used for clamping the radiofrequency needle handle.

[0009] Preferably, the second track includes vertical rail, sliding part;The sliding part is connected to the vertical rail, and the sliding part is installed on the arc-shaped track, and the sliding part can slide along the arc-shaped track.

[0010] Preferably, the sliding part comprises a rod body and a fastening nut; the rod body is fixed on the vertical rail, the rod body penetrates the arc-shaped rail and can slide along the arc-shaped rail, and the fastening nut is screwed on the rod body and can fix the rod body and the arc-shaped rail by the fastening nut.

[0011] Preferably, the arc-shaped rail is provided with an arc-shaped groove matched with the rod body.

[0012] Preferably, the clamping mechanism comprises an adjusting part and a clamping part; the adjusting part is slidingly arranged on the vertical rail and can move longitudinally along the vertical rail, and the clamping part is fixed on the adjusting part and used for clamping the handle of the radio frequency needle.

[0013] Preferably, the adjusting part comprises a sliding block and a slide rod; the sliding block is slidingly arranged in the vertical rail and is connected to the clamping part after extending out of the vertical rail, and one end of the slide rod extends into the vertical rail in a direction perpendicular to the length direction of the vertical rail and is connected to the sliding block, so that the slide rod and the sliding block are arranged perpendicularly, the slide rod and the sliding block can move synchronously along the vertical rail, and a locking nut that can fix the slide rod and the vertical rail is threadedly sleeved on the slide rod.

[0014] Preferably, the side of the vertical rail is provided with a sliding groove opened in the length direction of the vertical rail, and the sliding groove is matched with the slide rod.

[0015] Preferably, the clamping part comprises a seat body, a left arc-shaped clamp and a right arc-shaped clamp; the seat body is fixed with the sliding block, a rotating rod is rotatably arranged on the seat body in the length direction of the seat body, the left arc-shaped clamp and the right arc-shaped clamp are slidingly arranged on the seat body, and the left arc-shaped clamp and the right arc-shaped clamp are threadedly connected to the rotating rod, so that the rotating rod can drive the left arc-shaped clamp and the right arc-shaped clamp to synchronously move towards the middle of the seat body or separate to the two ends of the seat body after the rotating rod is rotated.

[0016] Preferably, the seat body is provided with a guide groove for the sliding of the left arc-shaped clamp and the right arc-shaped clamp.

[0017] Compared with the prior art, the CT guided thoracic and abdominal tumor radiofrequency ablation fixing support provided by the utility model can provide sliding guidance for the arc-shaped track, can accurately position the device to the tumor area, greatly improves the accuracy of the radiofrequency ablation needle insertion position, and avoids treatment failure caused by positioning deviation. The clamping mechanism can be used to clamp the radiofrequency needle handle, significantly enhances the stability of the fixation, overcomes the problem that the traditional device is easily affected by patient breathing, muscle contraction and other factors to cause the radiofrequency ablation needle to shift, and greatly improves the safety and reliability of the treatment. By longitudinally adjusting the clamping mechanism on the second track, the doctor can flexibly adjust the angle and depth of the radiofrequency ablation needle according to the specific morphology and position of the tumor, so as to realize accurate treatment of different types and different positions of thoracic and abdominal tumors, and effectively solve the problem of difficult angle and depth adjustment in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0019] Figure 1 It is the front view structural schematic diagram of the utility model.

[0020] Figure 2 It is the utility model Figure 1 It is the structural schematic diagram of another angle.

[0021] Figure 3 It is the structural schematic diagram of the vertical track and clamping mechanism connection of the utility model.

[0022] Figure 4 It is the utility model Figure 3 It is the structural schematic diagram of another angle.

[0023] Figure 5 It is the structural schematic diagram of the clamping mechanism of the utility model.

[0024] In the drawing: base plate 01, first track 02, support part 21, arc-shaped track 22, arc-shaped groove 23, second track 03, vertical track 31, sliding part 32, rod body 321, fastening nut 322, sliding groove 33, clamping mechanism 04, adjusting part 41, sliding block 411, sliding rod 412, locking nut 413, clamping part 42, seat body 421, left arc-shaped clamp 422, right arc-shaped clamp 423, rotating rod 424, guide groove 425, guide track 05. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0026] In the description of the present application, it should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicate the orientation or positional relationship, which are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0027] Please refer to Figures 1 to 5 The utility model provides a kind of CT guidance under thoracic and abdominal tumor radiofrequency ablation fixed support, including bottom plate 01, first track 02, second track 03, clamping mechanism 04;The side of bottom plate 01 is provided with guide rail 05 along the length direction of bottom plate 01;The layout direction of guide rail 05 is parallel with human long axis.The first track 02 includes support part 21, arc track 22;The lower end of support part 21 is slidably installed on guide rail 05, and one end of arc track 22 is connected to the upper end of support part 21, so that arc track 22 is located directly above bottom plate 01;Guide rail 05 can provide sliding direction for arc track 22, so that the device can be accurately positioned to the area where tumor is located, greatly improve the accuracy of radiofrequency ablation needle insertion position, avoid the treatment failure caused by positioning deviation.Arc-shaped slide rail can better fit the physiological curve of patient's thoracic and abdominal region, ensure that when fixing radiofrequency ablation needle, it can adapt to the body contour difference of different patients.This fit effectively reduces the instability problem caused by the mismatch between fixing device and patient's body, and also reduces the discomfort of patient during treatment.The second track 03 is slidably arranged on arc track 22 along the radial direction of arc track 22, so that the second track 03 can slide along arc track 22;Clamping mechanism 04 is slidably installed on the second track 03 along the longitudinal direction of the second track 03, and the clamping mechanism 04 is used for clamping radiofrequency needle handle.Clamping mechanism 04 can be used to clamp radiofrequency needle handle, significantly enhance the stability of fixation, overcome the problem that traditional device is easily affected by patient's breathing, muscle contraction and other factors, resulting in the displacement of radiofrequency ablation needle, greatly improve the safety and reliability of treatment.By adjusting clamping mechanism 04 longitudinally on the second track 03, doctors can flexibly adjust the angle and depth of radiofrequency ablation needle according to the specific morphology and position of tumor, so as to realize accurate treatment of different types and different positions of thoracic and abdominal tumors, effectively solve the problem of difficult angle and depth adjustment in the past.

[0028] In an embodiment, the second track 03 comprises a vertical track 31, a sliding part 32; the sliding part 32 is connected to the vertical track 31, and the sliding part 32 is installed on the arc-shaped track 22, so that the sliding part 32 can slide along the arc-shaped track 22.

[0029] Specifically, the sliding part 32 comprises a rod body 321 and a fastening nut 322; the rod body 321 is fixed on the vertical track 31, penetrates the arc-shaped track 22, and can slide along the arc-shaped track 22; the fastening nut 322 is threadedly installed on the rod body 321, and the rod body 321 can be fixed with the arc-shaped track 22 through the fastening nut 322. When the position of the clamping mechanism 04 needs to be adjusted, the fastening nut 322 is only loosened, and the clamping mechanism 04 is moved to the desired position along the arc-shaped track 22, and then the fastening nut 322 is tightened to fix the rod body 321 with the arc-shaped track 22; secondly, after the fastening nut 322 is loosened, the second track 03 can be rotated as a whole, and the angle of the clamping mechanism 04 is adjusted in this way to adjust the angle of the radiofrequency needle. This design provides great flexibility for the doctor to operate. When performing radiofrequency ablation treatment, the positions and angles of tumors may be different. Through the angle of the radiofrequency needle, the doctor can accurately guide the radiofrequency ablation needle to the accurate position of the tumor, ensuring the effectiveness of the treatment.

[0030] Of course, in order to provide better guidance for the rod body 321, an arc-shaped groove 23 adapted to the rod body 321 is formed on the arc-shaped track 22.

[0031] In an embodiment, the clamping mechanism 04 comprises an adjusting part 41 and a clamping part 42; the adjusting part 41 is slidingly arranged on the vertical track 31 and can move longitudinally along the vertical track 31; the clamping part 42 is fixed on the adjusting part 41 and is used for clamping the handle of the radiofrequency needle.

[0032] Specifically, the adjusting part 41 comprises a sliding block 411 and a sliding rod 412; the sliding block 411 is slidingly installed in the vertical guide rail and is connected to the clamping part 42 after extending out of the vertical guide rail; one end of the sliding rod 412 extends into the vertical track 31 in a direction perpendicular to the length direction of the vertical track 31 and is connected to the sliding block 411, so that the sliding rod 412 is arranged vertically to the sliding block 411; the sliding rod 412 and the sliding block 411 can move synchronously along the vertical track 31; a locking nut 413 is threadedly installed on the sliding rod 412, and the sliding rod 412 can be fixed with the vertical track 31 through the locking nut 413. When the locking nut 413 is loosened, the sliding block 411 can be adjusted to move, the height of the clamping mechanism 04 is adjusted, and the depth of the radiofrequency needle is controlled; when the adjustment is completed, the locking nut 413 can be tightened to fix the sliding rod 412 with the vertical track 31.

[0033] Of course, in order to better guide the slide rod 412, a slide groove 33 is arranged on the side of the vertical rail 31 and is opened along the length direction of the vertical rail 31, and the size of the slide groove 33 is matched with the size of the slide rod 412.

[0034] Specifically, the clamping part 42 comprises a seat body 421, a left arc-shaped clamp 422 and a right arc-shaped clamp 423; the seat body 421 is fixed with the slide block 411, a rotating rod 424 is rotatably installed along the length direction of the seat body 421, the left arc-shaped clamp 422 and the right arc-shaped clamp 423 are both slidably installed on the seat body 421, and the left arc-shaped clamp 422 and the right arc-shaped clamp 423 are both screwed to the rotating rod 424. The threads of the left arc-shaped clamp 422 and the right arc-shaped clamp 423 connected with the rotating rod 424 are opposite. After the rotating rod 424 is rotated, the rotating rod 424 can drive the left arc-shaped clamp 422 and the right arc-shaped clamp 423 to synchronously move towards the middle of the seat body 421 or separate to the two ends, so as to realize clamping or releasing of the handle of the radio frequency needle. The left arc-shaped clamp 422 and the right arc-shaped clamp 423 can tightly clamp the handle of the radio frequency needle, so as to prevent the handle from shaking or moving during treatment. Meanwhile, the clamping force of the left arc-shaped clamp 422 and the right arc-shaped clamp 423 can be adjusted through the rotating rod 424 according to needs, so as to ensure firm fixation and avoid unnecessary damage to the radio frequency needle.

[0035] The seat body 421 is provided with a guide groove 425 for sliding of the left arc-shaped clamp 422 and the right arc-shaped clamp 423, so as to guide the left arc-shaped clamp 422 and the right arc-shaped clamp 423.

[0036] In use, the bottom plate 01 is inserted under the back of a patient, and the bottom plate 01 can be pressed by the body weight of the patient; the radio frequency needle is clamped and fixed on the clamping mechanism 04, then the arc-shaped rail 22 is slid along the guide rail 05 to a predetermined position, the vertical rail 31 is pulled to move along the arc-shaped rail 22 to the predetermined position, the angle of the radio frequency needle is adjusted by adjusting the angle of the vertical rail 31, so that the radio frequency needle is in the best working position, then the clamping mechanism 04 is operated to move along the vertical rail 31, so that accurate treatment can be realized.

[0037] The above only discloses the preferred embodiments of the utility model, and of course cannot limit the scope of the utility model, and the person skilled in the art can understand that all or part of the processes of the above embodiments are realized, and equivalent changes made according to the utility model claims still belong to the range covered by the utility model.

Claims

1. A CT-guided radiofrequency ablation fixation stent for thoracic and abdominal tumors, characterized in that: The base plate, the first track, the second track and the clamping mechanism are included. A guide rail is arranged on one side of the base plate along the length direction of the base plate. The first track includes a support part and an arc-shaped track. The lower end of the support part is slidingly installed on the guide rail. One end of the arc-shaped track is connected to the upper end of the support part, so that the arc-shaped track is located directly above the base plate. The second track is slidingly arranged on the arc-shaped track along the radial direction of the arc-shaped track, so that the second track can slide along the arc-shaped track. The clamping mechanism is slidingly installed on the second track along the longitudinal direction of the second track, and is used for clamping the handle of the radio frequency needle.

2. The CT-guided thoraco-abdominal tumor radiofrequency ablation fixation support according to claim 1, characterized in that: The second track includes a vertical track and a sliding part. The sliding part is connected to the vertical track and is installed on the arc-shaped track. The sliding part can slide along the arc-shaped track.

3. The CT-guided thoraco-abdominal tumor radiofrequency ablation fixation support of claim 2, characterized in that: The sliding part includes a rod body and a fastening nut. The rod body is fixed on the vertical track, penetrates the arc-shaped track, and can slide along the arc-shaped track. The fastening nut is threadedly installed on the rod body, and the rod body can be fixed with the arc-shaped track through the fastening nut.

4. The CT-guided thoraco-abdominal tumor radiofrequency ablation fixation support of claim 3, characterized in that: An arc-shaped groove adapted to the rod body is formed in the arc-shaped track.

5. The CT guided thoraco-abdominal tumor radiofrequency ablation fixation bracket according to claim 2, characterized in that: The clamping mechanism includes an adjusting part and a clamping part. The adjusting part is slidingly arranged on the vertical track and can move longitudinally along the vertical track. The clamping part is fixed on the adjusting part and is used for clamping the handle of the radio frequency needle.

6. The CT-guided thoraco-abdominal tumor radiofrequency ablation fixation support of claim 5, characterized in that: The adjusting part includes a sliding block and a sliding rod. The sliding block is slidingly installed in the vertical guide rail and is connected to the clamping part after extending out of the vertical guide rail. One end of the sliding rod extends into the vertical track along a direction perpendicular to the length direction of the vertical track and is connected to the sliding block, so that the sliding rod and the sliding block are arranged vertically. The sliding rod and the sliding block can move synchronously along the vertical track. A locking nut adapted to fix the sliding rod with the vertical track is threadedly installed on the sliding rod.

7. The CT-guided thoraco-abdominal tumor radiofrequency ablation fixation support of claim 6, characterized in that: A sliding groove is formed in the side of the vertical track along the length direction of the vertical track and is adapted to the sliding rod.

8. The CT-guided thoraco-abdominal tumor radiofrequency ablation fixation support of claim 6, characterized in that: The clamping part includes a seat body, a left arc-shaped clamp and a right arc-shaped clamp. The seat body is fixed with the sliding block. A rotating rod is rotatably installed on the seat body along the length direction of the seat body. The left arc-shaped clamp and the right arc-shaped clamp are slidingly installed on the seat body and are threadedly connected to the rotating rod. After the rotating rod is rotated, the rotating rod can drive the left arc-shaped clamp and the right arc-shaped clamp to move synchronously towards the middle of the seat body or to separate towards the two ends.

9. The CT-guided thoraco-abdominal tumor radiofrequency ablation fixation support of claim 8, characterized in that: A guide groove is formed in the seat body for the sliding of the left arc-shaped clamp and the right arc-shaped clamp.

Images