Puncture side lower limb braking device after tumor interventional therapy

Abstract

The invention discloses a puncture side lower limb braking device after tumor interventional therapy. The puncture side lower limb braking device comprises a clamping seat, a sliding plate and a braking seat, the upper end of the clamping seat is slidably connected with a sliding plate; the upper end of the sliding plate is rotationally connected with a brake seat; a retaining ring is arranged in the middle of the lower end of the brake seat; corner worm wheels are arranged at the lower ends of the retaining rings; the telescopic sliding groove is connected with a sliding block in a sliding mode. The rotating shaft is rotationally connected with the front end of the connecting rod II; the sliding block is rotationally connected with the front end of the first connecting rod. The rear ends of the first connecting rod and the second connecting rod are rotationally connected with the other group of first connecting rod and second connecting rod; the overall length of the braking device can be dynamically adjusted according to the length of the lower limbs of the patient, and different positions are pressed and braked according to puncture parts to adapt to patients of different body types.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a lower limb braking device on the puncture side after tumor interventional treatment. Background Art

[0002] Interventional tumor therapy is a minimally invasive technique that uses a catheter to deliver localized treatment to the tumor site via vascular puncture. It is characterized by minimal trauma and definite efficacy. Postoperatively, to prevent bleeding, hematoma formation, and vascular damage at the puncture site, the lower limb on the puncture side must be strictly immobilized. The lower limb is usually straightened and movement is restricted for 12-24 hours.

[0003] Conventional lower limb immobilization devices typically use simple splints or restraints, which cannot be effectively adjusted to suit the body shape and lower limb length of different patients, causing discomfort to patients during the immobilization process. Furthermore, the fixed position and angle of existing devices are usually not adjustable, making them unable to adapt to the lower limb activity needs of patients at different stages of rehabilitation. This can lead to problems such as joint stiffness and muscle atrophy during prolonged immobilization.

[0004] Therefore, in response to the above-mentioned existing technical problems, this solution proposes a lower limb braking device on the puncture side after tumor interventional treatment. Summary of the Invention

[0005] To address the above-mentioned technical problems, the present invention designs a lower limb braking device on the puncture side after tumor interventional treatment. The device comprises a slide plate slidably connected above a clamping seat, and a retractable three-stage brake seat rotatably disposed on the upper end of the slide plate. This allows adjustment according to the body shape and lower limb length of different patients, ensuring effective braking. The angle of the brake seat on the slide plate can be adjusted to flexibly adjust to the patient's different recovery stages.

[0006] In order to achieve the above technical effects, the present invention is implemented through the following technical solutions: a lower limb braking device on the puncture side after tumor interventional treatment, comprising: a clamping seat, a slide plate, and a braking seat;

[0007] The upper end of the clamping seat is slidably connected to the slide plate; the upper end of the slide plate is rotatably connected to the brake seat;

[0008] A buckle is provided at the middle of the lower end of the brake seat, with a rotating shaft and a telescopic slide symmetrically provided on both sides; a rotating worm gear is provided at the lower end of the buckle; the telescopic slide is slidably connected to the slider; the rotating shaft is rotatably connected to the front end of the second connecting rod; the slider is rotatably connected to the front end of the first connecting rod; the middle parts of the first and second connecting rods are rotatably connected, and the rear ends are rotatably connected to another set of the first and second connecting rods;

[0009] Furthermore, the ends of the connecting rod 1 and the connecting rod 2 are respectively rotatably connected to the rotating shaft and the slider at the bottom of another brake seat;

[0010] Furthermore, the rotating shaft and the telescopic slide are arranged horizontally;

[0011] Furthermore, a groove is provided in the middle of the upper end of the brake seat, a rotating seat is provided on the outside of one side, and a clamping plate is provided in the middle of the other side; a rotating rod is provided on one side of the rotating seat to rotate and connect the cover plate; a clamping groove is provided in the middle of the clamping plate;

[0012] Furthermore, the cover plate is configured as an arc-shaped plate, the diameter of which is consistent with the groove in the middle of the brake seat, a hole is provided on one side for rotatably connecting to the rotating rod, and a buckle is provided in the middle of the other side; a wedge block is provided at the bottom of the buckle for movable connection;

[0013] Furthermore, a hole is provided in the middle of the cover plate to be threadedly connected to a compression screw; a compression knob is provided at the upper end of the compression screw, and the lower end is rotatably connected to the compression plate;

[0014] Furthermore, a hole is provided in the middle of the lower end of the clamping seat for threaded connection to the clamping screw, and a groove is provided at the upper end for sliding connection to the slide plate; a clamping knob is provided at the lower end of the clamping screw, and a clamping plate is provided at the upper end;

[0015] Furthermore, the front end of the slide is provided with a screw hole threadedly connected to the sliding screw, the upper part of the rear end is provided with a fixing column, the outer side of the fixing column is provided with an adjusting circular groove for rotating the connecting buckle; the front end of the sliding screw penetrates and rotates to connect the clamping seat, and a sliding knob is provided on the outside;

[0016] Furthermore, a hole is provided on one side of the rear end of the skateboard for rotatably connecting to a corner rod; a corner knob is provided at the front end of the corner rod, and a corner worm is provided in the middle to engage with a rotating worm wheel.

[0017] The beneficial effects of the present invention are:

[0018] The present invention uses a sliding screw that slides back and forth on the clamping seat, combined with a three-stage telescopic structure of the brake seat, to dynamically adjust the overall length of the brake device according to the length of the patient's lower limb. It also allows for different pressing and braking positions based on the puncture site, making it suitable for patients of different body sizes. This avoids braking failure or compression discomfort caused by size mismatch in traditional fixed splints.

[0019] At the same time, the brake seat can achieve angular rotation on the skateboard through the engagement of the worm gear and the worm, meeting the lower limb activity needs at different stages of postoperative rehabilitation and reducing the risk of joint stiffness and muscle atrophy;

[0020] Finally, the compression screw and compression plate design at the top of the brake seat can steplessly adjust the local pressure on the puncture point by rotating the compression knob, replacing the vague compression of traditional sandbags and realizing quantitative control of pressure. It can effectively stop bleeding and avoid tissue ischemia or pressure sores caused by excessive compression. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of a lower limb braking device on the puncture side after tumor interventional treatment;

[0023] Figure 2 This is a side view of a lower limb immobilization device on the puncture side after tumor interventional treatment;

[0024] Figure 3 This is a schematic diagram of the slide structure of a braking device for the lower limb on the puncture side after tumor interventional treatment;

[0025] Figure 4 This is a schematic diagram of the brake seat structure of a lower limb braking device on the puncture side after tumor interventional treatment;

[0026] Figure 5 This is a schematic diagram of the cover structure of a lower limb braking device on the puncture side after tumor interventional treatment;

[0027] Figure 6 This is a schematic diagram of the bottom structure of a lower limb braking device on the puncture side after tumor interventional treatment;

[0028] Figure 7 A is a partial structural diagram of a lower limb braking device on the puncture side after tumor interventional treatment;

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] 1-Clamping seat, 2-Clamping knob, 3-Clamping screw, 4-Clamping plate, 5-Slide plate, 6-Screw hole, 7-Fixed column, 8-Adjusting groove, 9-Sliding screw, 10-Sliding knob, 11-Angle rod, 12-Angle worm, 13-Angle knob, 14-Angle worm gear, 15-Retaining ring, 16-Telescopic slide, 17-Shaft, 18-Clip plate, 19-Clip groove, 20-Cover, 21-Snap, 22-Compression knob, 23-Compression screw, 24-Compression plate, 25-Slider, 26-Connecting rod 1, 27-Connecting rod 2, 28-Swivel seat, 29-Rotating rod, 30-Wedge, 31-Brake seat. DETAILED DESCRIPTION

[0031] The present invention discloses a lower limb braking device on the puncture side after tumor interventional treatment, comprising: a clamping seat 1, a slide plate 5, and a brake seat 31; the upper end of the clamping seat 1 is slidably connected to the slide plate 5; the upper end of the slide plate 5 is rotatably connected to the brake seat 31; a buckle 15 is provided at the middle part of the lower end of the brake seat 31, and a rotating shaft 17 and a telescopic slide 16 are symmetrically provided on both sides; a rotating worm gear 14 is provided at the lower end of the buckle 15; the telescopic slide 16 is slidably connected to the slider 25; the rotating shaft 17 is rotatably connected to the front end of the connecting rod 2 27; the slider 25 is rotatably connected to the front end of the connecting rod 1 26; the middle parts of the connecting rod 1 26 and the connecting rod 2 27 are rotatably connected, and the rear ends are rotatably connected to another group of connecting rod 1 26 and connecting rod 2 27; the overall length of the braking device can be dynamically adjusted according to the length of the patient's lower limb, and different positions of pressing and braking are based on the puncture site to adapt to patients of different body shapes.

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Example 1

[0034] like Figure 1-7 As shown, the upper end of the clamping seat 1 is slidably connected to the slide plate 5; the upper end of the slide plate 5 is rotatably connected to the brake seat 31;

[0035] A buckle 15 is provided at the middle of the lower end of the brake seat 31, with a rotating shaft 17 and a telescopic slide 16 symmetrically provided on both sides; a rotating worm gear 14 is provided at the lower end of the buckle 15; the telescopic slide 16 is slidably connected to a slider 25; the rotating shaft 17 is rotatably connected to the front end of the second connecting rod 27; the slider 25 is rotatably connected to the front end of the first connecting rod 26; the middle portions of the first connecting rod 26 and the second connecting rod 27 are rotatably connected, and the rear ends are rotatably connected to another set of the first connecting rod 26 and the second connecting rod 27;

[0036] Furthermore, the ends of the connecting rod 1 26 and the connecting rod 27 are respectively rotatably connected to the rotating shaft 17 and the slider 25 at the bottom of another brake seat 31;

[0037] Furthermore, the rotating shaft 17 and the telescopic slide 16 are arranged horizontally;

[0038] In this embodiment, a scissor-type connecting rod structure is adopted on both sides of the bottom of the brake seat 31: one side is connected to the connecting rod by a fixed shaft, and the other side cooperates with the slide groove by a sliding block. When the position of the brake seats 31 on both sides changes, the sliding block moves back and forth in the slide groove, driving the two connecting rods to rotate crosswise, forming a linkage support structure similar to a folding chair, so that when the brake seat 31 is adjusted in length, the supporting force is evenly distributed on the lower limbs, avoiding tilting or local compression of the device caused by single-point force. At the same time, flexible constraints are provided through the elastic deformation of the connecting rod, fitting the curve of the lower limbs, and improving comfort and stability during fixation; at the same time, the connecting rod is arranged at the bottom of the brake seat 31, and it has only left and right degrees of freedom, and the direction required for constraint is up and down, so the effectiveness of the constraint can be guaranteed;

[0039] Furthermore, a groove is provided in the middle of the upper end of the brake seat 31, a rotating seat 28 is provided on the outside of one side, and a clamping plate 18 is provided in the middle of the other side; a rotating rod 29 is provided on one side of the rotating seat 28 to rotatably connect the cover plate 20; a clamping groove 19 is provided in the middle of the clamping plate 18;

[0040] Furthermore, the cover plate 20 is configured as an arc-shaped plate with a diameter consistent with the groove in the middle of the brake seat 31. A hole is provided on one side for rotatably connecting to the rotating rod 29, and a buckle 21 is provided in the middle of the other side; a wedge 30 is provided at the bottom of the buckle 21 for movably connecting to the slot 19;

[0041] Furthermore, a hole is formed in the middle of the cover plate 20 to be threadedly connected to a compression screw 23; a compression knob 22 is provided at the upper end of the compression screw 23, and a compression plate 24 is rotatably connected to the lower end;

[0042] In this embodiment, an arc-shaped groove is provided on the upper end of the brake seat 31 to match the contour of the lower limb, and a flip-up arc-shaped cover plate 20 is covered on the upper end. One side of the cover plate 20 is connected to the brake seat 31 by a rotating shaft 17, and the other side is quickly locked by a wedge-shaped fit between the buckle 21 and the slot 19: when the cover plate 20 is pressed downward, the wedge block 30 at the bottom of the buckle 21 is embedded in the slot 19 to form a stable buckle; it can be quickly opened by pulling it upward, which is convenient for medical staff to observe the puncture point or assist the patient in temporary activities. The adjusting screw in the center of the cover plate 20 can control the compression plate 24 to move up and down by rotating the knob to accurately adjust the local pressure on the puncture point: clockwise rotation increases pressure, counterclockwise rotation reduces pressure, and the screw thread transmission realizes quantitative control of pressure, avoiding the problem of uneven pressure or excessive pressure of traditional sandbag compression, which can effectively stop bleeding and protect local tissue blood circulation;

[0043] Furthermore, a hole is provided in the middle of the lower end of the clamping seat 1 to be threadedly connected to the clamping screw 3, and a groove is provided on the upper end to be slidably connected to the slide plate 5; a clamping knob 2 is provided at the lower end of the clamping screw 3, and a clamping plate 4 is provided at the upper end;

[0044] In this embodiment, by rotating the clamping knob 2 to drive the clamping screw 3 to move upward, the clamping plate 4 cooperates with the bottom of the clamping base 1 to clamp the edge of the bed, thereby fixing the entire device to the bed;

[0045] Furthermore, the front end of the slide plate 5 is provided with a screw hole 6 threadedly connected to the sliding screw 9, and the upper part of the rear end is provided with a fixing column 7, and the outer side of the fixing column 7 is provided with an adjusting circular groove 8 for rotating the connecting buckle 15; the front end of the sliding screw 9 penetrates and rotates to connect the clamping seat 1, and a sliding knob 10 is provided on the outside;

[0046] In this embodiment, when length adjustment is required, the sliding knob 10 is rotated to drive the sliding screw 9 to rotate, and the slide plate 5 engages with the thread of the sliding screw 9 through the front screw hole 6, and slides back and forth along the groove at the upper end of the clamping seat 1, thereby adjusting the extended length of the slide plate 5 relative to the clamping seat 1 to adapt to the length of the patient's lower limbs;

[0047] Furthermore, a hole is provided on one side of the rear end of the slide plate 5 for rotationally connecting to a corner rod 11; a corner knob 13 is provided at the front end of the corner rod 11, and a corner worm 12 is provided in the middle to engage with a rotating worm wheel;

[0048] In this embodiment, when the angle of the brake seat 31 needs to be adjusted, the angle knob 13 is rotated to drive the angle rod 11 and the angle worm 12 to rotate. The worm engages with the angle worm gear 14, driving the buckle 15 to rotate around the adjustment circular groove 8 of the fixed column 7, thereby driving the brake seat 31 to rotate around the rear end of the slide plate 5 as a whole;

[0049] The worm gear transmission is self-locking. After adjustment, the brake seat can maintain a 31-degree angle stably to avoid angle deviation caused by slight movements of the patient's lower limbs. In the early postoperative period, it can be adjusted to 0 degrees for strict extension and braking, and then gradually adjusted to 15° or 30° in the later period to allow slight flexion of the joint, relieve muscle fatigue, and reduce the risk of joint stiffness.

[0050] Example 2

[0051] This embodiment provides an implementation form of pressure regulation of the compression plate 24;

[0052] In this embodiment, a pressure sensor is provided at the lower end of the compression plate 24 to measure the pressure generated by the compression plate 24;

[0053] In this embodiment, the compression plate 24 acts perpendicularly to the puncture point, temporarily blocking blood flow at the rupture site through mechanical force, providing a static environment for platelet aggregation and fibrinogen conversion, and accelerating thrombus formation. The compression plate 24 adopts an arc-shaped design, and the pressure at the edge is 20% lower than that at the center, avoiding local high pressure that may cause damage to the blood vessel wall while ensuring effective pressure at the rupture site.

[0054] When the pressure is ≤2.0kPa, the lower limb venous blood flow velocity is maintained at 10-15cm / s, and the arterial oxygen saturation (SpO2) is ≥95%, preventing deep vein thrombosis. A 2mm thick medical silicone cushion is provided under the compression plate 24. When compressed, it deforms by 10%-15%, converting concentrated pressure into evenly distributed surface pressure. Memory foam is provided on the inner lining of the brake seat 31 to further disperse the pressure on the soft tissue of the lower limb, keeping the local pressure at the bony protrusion less than 0.6kPa, thus preventing the occurrence of pressure sores.

[0055] When performing pressure regulation, it can be divided into the following stages:

[0056] Immediate postoperative immobilization (0-6 hours): The pressure is set at 1.2-1.5 kPa to ensure the closure of the arterial incision, while allowing a small blood flow to flush the blood vessel wall to prevent excessive thrombosis.

[0057] Mid-term fixation (6-24 hours): Dynamically adjust according to the bleeding situation at the puncture point. If there is no bleeding, the pressure can be reduced to 1.0-1.2kPa. The pressure fluctuation of ±0.1kPa when the patient turns slightly is allowed. The pressure is kept stable through the connecting rod linkage structure.

[0058] Decompression before releasing the brake: reduce by 0.2 kPa every 30 minutes, and reduce to 0.5 kPa within 2 hours. Remove the puncture site after observing that there is no bleeding to avoid re-dilation and bleeding of blood vessels caused by sudden decompression.

[0059] In summary, the present invention allows the sliding screw 9 to slide back and forth on the clamping seat 1, combined with the three-stage telescopic structure of the brake seat 31, to dynamically adjust the overall length of the brake device according to the length of the patient's lower limb, and to press and brake at different positions according to the puncture site, thereby adapting to patients of different body sizes, thereby avoiding braking failure or compression discomfort caused by size mismatch of traditional fixed splints;

[0060] At the same time, the brake seat 31 can achieve angular rotation on the slide 5 through the engagement of the worm gear 14 with the worm, meeting the lower limb activity requirements at different stages of postoperative rehabilitation and reducing the risk of joint stiffness and muscle atrophy;

[0061] Finally, the compression screw 23 and the compression plate 24 at the upper end of the brake seat 31 are designed to steplessly adjust the local pressure on the puncture point by rotating the compression knob 22, replacing the vague compression of the traditional sandbag and realizing quantitative control of pressure, which can effectively stop bleeding and avoid tissue ischemia or pressure sores caused by excessive compression.

[0062] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the invention to only the specific implementation methods described.

Claims

1. A lower limb braking device for the puncture side after tumor interventional treatment, characterized in that: include: Clamping seat, slide plate, brake seat; The upper end of the clamping seat is slidably connected to the slide plate; the upper end of the slide plate is rotatably connected to the brake seat; A buckle is provided in the middle of the lower end of the brake seat, and a rotating shaft and a telescopic slide are symmetrically provided on both sides; an angular worm gear is provided at the lower end of the buckle; the telescopic slide is slidably connected to the slider; the rotating shaft is rotatably connected to the front end of the connecting rod 2; the slider is rotatably connected to the front end of the connecting rod 1; the middle parts of the connecting rod 1 and the connecting rod 2 are rotatably connected, and the rear ends are rotatably connected to another set of connecting rods 1 and 2.

2. The lower limb braking device for puncture side after tumor interventional treatment according to claim 1, characterized in that: The ends of the connecting rod 1 and the connecting rod 2 are respectively rotatably connected to the rotating shaft and the sliding block at the bottom of another brake seat.

3. The lower limb braking device for puncture side after tumor interventional treatment according to claim 2, characterized in that: The rotating shaft and the telescopic slide are arranged horizontally.

4. The lower limb braking device for puncture side after tumor interventional treatment according to claim 3, characterized in that: A groove is provided in the middle of the upper end of the brake seat, a rotating seat is provided on the outside of one side, and a clamping plate is provided in the middle of the other side; a rotating rod is provided on one side of the rotating seat to rotate and connect the cover plate; a clamping groove is provided in the middle of the clamping plate.

5. The lower limb braking device for puncture side after tumor interventional treatment according to claim 4, characterized in that: The cover plate is configured as an arc-shaped plate, the diameter of which is consistent with the groove in the middle of the brake seat, a hole is provided on one side for rotatably connecting to the rotating rod, and a buckle is provided in the middle of the other side; a wedge block movable connection slot is provided at the bottom of the buckle.

6. The lower limb braking device for puncture side after tumor interventional treatment according to claim 5, characterized in that: The middle part of the cover plate is provided with a hole for threaded connection with a compression screw rod; the upper end of the compression screw rod is provided with a compression knob, and the lower end thereof is rotatably connected with the compression plate.

7. The lower limb braking device for puncture side after tumor interventional treatment according to claim 1, characterized in that: The middle part of the lower end of the clamping seat is provided with a hole for threaded connection with the clamping screw, and the upper end is provided with a groove for sliding connection with the slide plate; the lower end of the clamping screw is provided with a clamping knob, and the upper end is provided with a clamping plate.

8. The lower limb braking device for puncture side after tumor interventional treatment according to claim 7, characterized in that: The front end of the slide plate is provided with a screw hole for threaded connection to a sliding screw, the upper part of the rear end is provided with a fixing column, the outer side of the fixing column is provided with an adjusting circular groove for rotating connection buckle; the front end of the sliding screw penetrates and rotates to connect the clamping seat, and a sliding knob is provided on the outside.

9. The lower limb braking device for puncture side after tumor interventional treatment according to claim 8, characterized in that: A hole is provided on one side of the rear end of the skateboard for rotationally connecting to a corner rod; a corner knob is provided at the front end of the corner rod, and a corner worm is provided in the middle to engage with and rotate the worm wheel.

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