Lower limb braking protection device used after cerebral angiography

Abstract

The utility model discloses a lower limb braking protection device used after cerebral angiography. The lower limb braking protection device comprises a base. The device further comprises a thigh support and a shank support, the thigh support and the shank support are both provided with restraint straps, one end of the shank support is in sliding connection with the base through a transverse shaft, one end of the thigh support is rotationally connected with the base, and the other end of the thigh support is rotationally connected with the shank support to form a supporting structure capable of being folded and arched. The supporting structure is provided with a locking mechanism used for fixing the included angle between the thigh support and the shank support. The utility model has the advantages that the brake angle is adjustable, and the brake requirements after different angiography operations can be met.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary products, and in particular to a lower limb immobilization and protection device after cerebral angiography. Background Technology

[0002] In the medical field, angiography is a common diagnostic and treatment method, such as cardiovascular angiography and cerebral angiography. After angiography, the patient's lower limbs need to be immobilized for a certain period of time to prevent complications such as bleeding and hematoma at the puncture site. Currently, the commonly used method of lower limb immobilization in clinical practice mainly relies on the patient's voluntary cooperation and regular supervision by nursing staff. However, this method has many shortcomings, such as poor patient comfort and the ease with which lower limb movement can lead to poor immobilization effect.

[0003] To address the aforementioned issues, Chinese utility model patent application CN202222828810.9 discloses a lower limb immobilization stent after femoral artery puncture angiography. This stent involves sequentially mounting a bandage, a restraint strap, and an auxiliary mechanism on the stent from left to right. The auxiliary mechanism is fixed to the stent, while the bandage and restraint strap are fitted onto it, thereby restricting knee flexion and achieving lower limb immobilization. However, after certain cerebrovascular angiography procedures, such as cardiovascular angiography, it may be necessary to maintain the lower limb in an extended or slightly flexed position (e.g., 15-30 degrees), or even a greater flexion angle. However, after the aforementioned femoral artery puncture angiography procedure, the patient's lower limb can only be kept in an extended position, and its angle is not adjustable, failing to meet the immobilization needs after different angiography procedures.

[0004] How to solve the above problems has become an urgent technical issue. Utility Model Content

[0005] The purpose of this invention is to provide a lower limb immobilization and protection device after cerebral angiography. The braking angle of this device is adjustable, which can meet the immobilization needs after different angiography procedures.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a lower limb immobilization and protection device after cerebral angiography, including a base; it also includes a thigh support and a calf support, both of which are equipped with restraint straps. One end of the calf support is slidably connected to the base via a horizontal axis, and one end of the thigh support is rotatably connected to the base, while the other end of the thigh support is rotatably connected to the calf support to form a foldable and archable support structure. The support structure is equipped with a locking mechanism for fixing the angle between the thigh support and the calf support.

[0008] Furthermore, the locking mechanism includes a locking seat, a positioning plate, and a pin. The locking seat is fixedly connected to the calf support and has a locking groove. The pin is slidably sleeved in the locking groove and one end of the pin is connected to the locking seat via a spring. The positioning plate is fixedly connected to the thigh support and has several positioning holes. The positioning holes are arranged in a semi-circular arc spacing and each positioning hole is engaged with the pin.

[0009] Furthermore, the base includes a base, which is fixedly disposed on the bottom surface of the calf support and has a groove. One end of the groove is rotatably connected to the thigh support, and slides are symmetrically provided on both sides of the other end of the groove. The two ends of the horizontal shaft are respectively slidably engaged with the two slides. In addition, the base has a notch that can accommodate the locking mechanism.

[0010] Furthermore, it also includes a protective cover, both ends of which are provided with a first connecting strap. One end of the first connecting strap is fixedly connected to the protective cover and the other end of the first connecting strap is provided with a buckle. In addition, both sides of the thigh support are provided with a second connecting strap. One end of the second connecting strap is fixedly connected to the thigh support and the other end of the second connecting strap is provided with a slot, which cooperates with the buckle.

[0011] Furthermore, the protective cover has a window with a flip cover, one end of which is hinged to the protective cover and the other end of which is detachably connected to the protective cover. Additionally, a sealing strip is provided on the edge of the bottom surface of the flip cover.

[0012] Furthermore, the positioning disk is provided with a scale.

[0013] Furthermore, the base has a length of 40-60cm and a width of 15-20cm.

[0014] Furthermore, the length of the restraint strap is 40-80cm and the width is 5-8cm.

[0015] Furthermore, the protective cover has a rectangular or elliptical structure and is made of transparent plastic.

[0016] Furthermore, it also includes a microprocessor, an alarm, a display screen, and at least one pressure sensor, wherein the pressure sensor is positioned on the side of the restraint strap close to the patient's lower limb, and the pressure sensor, alarm, and display screen are all electrically connected to the microprocessor.

[0017] Due to the adoption of the above structure, the beneficial effects of this utility model are as follows:

[0018] This invention features a thigh support and a calf support, each equipped with restraint straps to immobilize the patient's thigh and calf respectively. Since the thigh and calf supports are rotatably connected, they can be folded and arched to change the braking angle when needed, causing the thigh and calf, which are restrained by the straps, to flex. A locking mechanism is used to fix the angle between the thigh and calf supports, thereby fixing the knee joint angle and meeting the immobilization needs after different angiography procedures.

[0019] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the locking mechanism of this utility model;

[0023] Figure 3 This is a structural block diagram of the present invention. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figure 1This utility model provides a lower limb immobilization and protection device after cerebral angiography, including a base 1; it also includes a thigh support 2 and a calf support 3, each equipped with a restraint strap 4 for immobilizing the patient's thigh and calf respectively; one end of the calf support 3 is slidably connected to the base 1 via a horizontal axis, and one end of the thigh support 2 is rotatably connected to the base 1, while the other end of the thigh support 2 is rotatably connected to the calf support 3, forming a foldable arched support structure. The thigh support 2 and the calf support 3 are hinged, and the angle between them ranges from 90° to 180°, enabling the patient's lower limb to remain in an extended position or be flexed, thereby meeting the immobilization needs after different angiography procedures; the support structure is equipped with a locking mechanism 5 for fixing the angle between the thigh support 2 and the calf support 3 to prevent unplanned changes in the angle.

[0026] In some preferred embodiments, the restraint strap 4 has a two-section structure. The two ends of the restraint strap 4 are fixedly connected to the sides of the thigh support 2 or the calf support 3, and the middle part is detachably connected by Velcro, so as to immobilize the lower limbs. The length of the restraint strap 4 can be adjusted as needed by different positions of the hook and loop sides of the Velcro to accommodate patients with different leg thicknesses.

[0027] The parts of the base 1, thigh support 2, and calf support 3 that come into contact with the patient's skin all feature rounded corners to avoid sharp edges causing scratches or pressure on the patient's skin. In addition, soft cushioning pads, such as sponge pads or silicone pads, are added to these parts to further distribute pressure and improve the patient's wearing comfort.

[0028] The thigh support 2 and calf support 3 are equipped with massage particles or protrusions in the parts that come into contact with the patient's skin, which can massage the patient's legs to a certain extent, promote blood circulation, and relieve the discomfort caused by the patient having to maintain the same posture for a long time during immobilization.

[0029] The outer wall of the base 1 is provided with at least one label for indicating important information such as the product name, model, usage method, and precautions. The label uses a combination of clear and easy-to-understand text and icons to facilitate medical staff and patients to quickly understand the usage method and related precautions of the device.

[0030] The base 1 is made of aviation aluminum alloy, which is lightweight, high-strength, and corrosion-resistant. This material can reduce the burden on patients while ensuring the stability and durability of the device, and facilitate the operation of medical staff. In addition, the surface of the base 1 is anodized to increase its hardness and wear resistance, further extending the service life of the device.

[0031] Both the thigh support 2 and the calf support 3 are made of high-strength engineering plastics, such as polycarbonate (PC) or polyetheretherketone (PEEK), which have good mechanical properties, self-lubrication and fatigue resistance. This ensures that the connection between the thigh support 2 and the calf support 3 maintains flexible and stable performance during frequent adjustments and use. At the same time, they have good chemical stability and are not prone to reacting with human tissue fluid or drugs, meeting the safety standards for medical materials.

[0032] The restraint strap 4 is made of breathable cotton fabric, which improves patient comfort, prevents the skin from being in a hot and humid environment for extended periods, and reduces the risk of skin complications. Furthermore, the side of the restraint strap 4 that comes into contact with the body has anti-slip stripes to increase friction between the strap and the skin, further preventing slippage during use. The anti-slip stripes are made of soft medical-grade silicone, which has good biocompatibility and will not cause allergic reactions upon skin contact. Its soft texture effectively distributes pressure, reducing pressure on the skin.

[0033] In this embodiment of the utility model, the base 1 includes a base 101, which is fixedly disposed on the bottom surface of the calf support 3 and has a groove 102. One end of the groove 102 is rotatably connected to the thigh support 2, and the other end of the groove 102 has symmetrically provided slide rails 103 on both sides. The two ends of the horizontal axis are respectively slidably engaged with the two slide rails 103, so that the end of the calf support 3 away from the thigh support 2 can move horizontally, thereby changing the included angle between the thigh support 2 and the calf support 3. In addition, the base 1 has a notch 104 that can accommodate the locking mechanism 5. When it is necessary to keep the patient's lower limb in an extended position, that is, when the flexion angle is zero, the thigh support 2 and the calf support 3 are on the same horizontal plane, and the locking mechanism 5 is exactly in the notch 104, thereby avoiding the locking mechanism 5 from obstructing the thigh support 2 and the calf support 3 from being laid flat.

[0034] In this embodiment of the utility model, a protective cover 6 is also included. Both ends of the protective cover 6 are provided with a first connecting strap 7. One end of the first connecting strap 7 is fixedly connected to the protective cover 6, and the other end of the first connecting strap 7 is provided with a buckle 8. Furthermore, both sides of the thigh support 2 are provided with a second connecting strap 9. One end of the second connecting strap 9 is fixedly connected to the thigh support 2, and the other end of the second connecting strap 9 is provided with a slot 10. The slot 10 and the buckle 8 are engaged in a buckle-fastening manner. The connection between the slot 10 and the buckle 8 is simple and quick, which makes it convenient for medical personnel to quickly disassemble and install the protective cover 6 when they need to observe or operate the puncture site.

[0035] In this embodiment of the invention, the protective cover 6 has a window with a flip cover 11. One end of the flip cover 11 is hinged to the protective cover 6, and the other end of the flip cover 11 is detachably connected to the protective cover 6. A sealing strip is provided on the edge of the bottom surface of the flip cover 11. The openable end of the flip cover 11 is detachably connected to the protective cover 6 using Velcro or snap fasteners, facilitating operations such as changing medication through the window after the flip cover 11 is opened. When the flip cover 11 is closed to cover the window, the upper and lower surfaces of the sealing strip are tightly attached to the flip cover 11 and the protective cover 6, respectively, ensuring the airtightness of the protective cover 6 and preventing external contaminants from entering.

[0036] In this embodiment of the invention, the base 1 has a length of 40-60cm and a width of 15-20cm. Different lengths and widths of the base 1 can be provided according to actual needs to ensure a good fit and comfort between the base and the patient's lower limbs. For example, the base 1 can be divided into small (40-45cm), medium (45-55cm), and large (55-60cm) sizes to meet the needs of patients of different heights.

[0037] In this embodiment of the invention, the restraint strap 4 has a length of 40-80cm and a width of 5-8cm. Specifically, the restraint strap 4 used to fix the thigh has a length of 60-80cm and a width of 5-8cm, while the restraint strap 4 used to fix the lower leg has a length of 40-60cm. The width of both restraint straps 4 is 5-8cm, ensuring sufficient fixation without causing excessive pressure on the patient's legs.

[0038] In this embodiment of the invention, the protective cover 6 is made of transparent plastic, such as medical-grade polyvinyl chloride (PVC), which has good transparency, making it convenient for nursing staff to observe the puncture site, while effectively preventing external objects from colliding with and contaminating the puncture site; the height of the protective cover 6 is 5-8cm, for example, 5, 6.5 or 8cm, ensuring that there is a certain space between the protective cover and the skin for observation and operation, and preventing external objects from directly contacting the puncture site without excessively restricting the patient's movement.

[0039] In some preferred embodiments, the edges of the protective cover 6 are fitted with a soft silicone layer, such as a thermoplastic elastomer (TPE) material, which does not cause discomfort when in contact with the skin and can better conform to the skin.

[0040] In some optional embodiments, the protective cover 6 is a rectangular structure with a length of 15-20cm and a width of 10-15cm. For example, the length of the protective cover 6 is 15, 17.5, or 20cm, and the width is 10, 12.5, or 15cm.

[0041] In some optional embodiments, the protective cover 6 has an elliptical structure with a major axis of 15-20 cm and a minor axis of 10-15 cm. For example, the major axis of the protective cover 6 is 15, 17.5, or 20 cm, and the minor axis is 10, 12.5, or 15 cm.

[0042] Please refer to Figure 2 In this embodiment of the present invention, the locking mechanism 5 includes a locking seat 501, a positioning plate 502, and a pin 503. The locking seat 501 is fixedly connected to the calf support 3 and has a locking groove 504. The pin 503 is slidably sleeved in the locking groove 504 and one end of the pin 503 is connected to the locking seat 501 by a spring 505. The positioning plate 502 is fixedly connected to the thigh support 2 and has a plurality of positioning holes 506. The positioning holes 506 are arranged in a semi-circular arc spacing and each positioning hole 506 is inserted into the pin 503. In use, pressing the pin 503 until it disengages from the positioning hole 506 in the direction of compression of the spring 505 allows the angle between the thigh support 2 and the calf support 3 to be adjusted. Releasing the pin 503 causes the spring 505 to push the pin 503 in the direction of extension of the spring 505 until one end of the pin 503 is inserted into the positioning hole 506 while the other end of the pin 503 remains in the locking groove 504. This fixes the angle between the thigh support 2 and the calf support 3. Depending on the angle between the thigh support 2 and the calf support 3, the pin 503 is inserted into different positioning holes 506 to meet the immobilization requirements after different angiography procedures.

[0043] It is understood that in some optional embodiments, the locking seat 501 is fixedly connected to the thigh support 2, and the positioning plate 502 is fixedly connected to the calf support 3. The change of the fixed position does not affect the locking mechanism 5 from fixing the angle between the thigh support 2 and the calf support 3.

[0044] In this embodiment of the utility model, the positioning disk 502 is provided with a scale to help determine the included angle between the thigh support 2 and the calf support 3.

[0045] Please refer to Figure 3In this embodiment of the invention, a microprocessor 12, an alarm 13, a display screen 14, and at least one pressure sensor 15 are also included. The pressure sensor 15 is positioned on the side of the restraint strap 4 near the patient's lower limb. The pressure sensor 15, alarm 13, and display screen 14 are all electrically connected to the microprocessor 12. The pressure sensor 15 monitors the pressure changes of the patient's lower limb on the restraint strap 4 and transmits the collected data to the microprocessor 12 in real time. The microprocessor 12 analyzes and processes the data and displays it on the display screen 14. When the detected pressure is too high or too low, the microprocessor 12 triggers the alarm 13, emitting an audible and visual alarm signal to remind nursing staff to check the patient's condition promptly, ensuring the effectiveness of the immobilization and the patient's safety.

[0046] In some preferred embodiments, the alarm 13 and the microprocessor 12 are both fixedly mounted on the base 1; there are two pressure sensors 15, which are respectively fixed on two constraint straps 4.

[0047] In some optional embodiments, a displacement sensor is provided on the base 1, and the displacement sensor is electrically connected to the microprocessor 12. The displacement sensor monitors the movement distance of the horizontal axis, thereby collecting displacement data of the patient's lower limbs, which can be displayed on the display screen 14. When a displacement exceeds the set range, the microprocessor 12 will trigger the alarm 13, emitting an audible and visual alarm signal to remind nursing staff to check the patient's condition in time, ensuring the effectiveness of the braking effect and the patient's safety.

[0048] In use, the patient's thigh and calf are first placed on the thigh support 2 and calf support 3 respectively, with the knee joint positioned at the junction of the thigh support 2 and calf support 3. Then, the patient's thigh and calf are secured using two restraint straps 4. When the patient's lower limbs need to be kept in an extended position, the thigh support 2 and calf support 3 are on the same horizontal plane, and the locking mechanism 5 is precisely positioned within the notch 104. When the patient's lower limbs need to be in a flexed position, the pin 503 is pressed until it disengages from the positioning hole 50 along the compression direction of the spring 505. After step 6, push the crossbar to slide along the groove, causing the angle between the thigh support 2 and the calf support 3 to change, causing the calf and thigh to flex until the angle between the thigh support 2 and the calf support 3 reaches the required angle. Then, release the pin 503, and the spring 505 pushes the pin 503 to move in the direction of the spring 505 until one end of the pin 503 is inserted into the corresponding positioning hole 506 and the other end of the pin 503 is still in the locking groove 504, so that the angle between the thigh support 2 and the calf support 3 is fixed, thereby meeting the immobilization needs after different angiography procedures.

[0049] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A lower limb immobilization and protection device after cerebral angiography, comprising a base (1); characterized in that: It also includes a thigh support (2) and a calf support (3). Both the thigh support (2) and the calf support (3) are provided with restraint straps (4). One end of the calf support (3) is slidably connected to the base (1) through a horizontal axis. One end of the thigh support (2) is rotatably connected to the base (1) and the other end of the thigh support (2) is rotatably connected to the calf support (3) to form a support structure that can be folded and arched. The support structure is provided with a locking mechanism (5) for fixing the angle between the thigh support (2) and the calf support (3).

2. The lower limb immobilization and protection device after cerebral angiography according to claim 1, characterized in that: The locking mechanism (5) includes a locking seat (501), a positioning plate (502), and a pin (503). The locking seat (501) is fixedly connected to the lower leg support (3) and has a locking groove (504). The pin (503) is slidably sleeved in the locking groove (504) and one end of the pin (503) is connected to the locking seat (501) by a spring (505). The positioning plate (502) is fixedly connected to the thigh support (2) and has a plurality of positioning holes (506). The positioning holes (506) are arranged in a semi-circular arc spacing and each positioning hole (506) is inserted into the pin (503).

3. The lower limb immobilization and protection device after cerebral angiography according to claim 2, characterized in that: The base (1) includes a base (101), which is fixedly mounted on the bottom surface of the calf support (3) and has a groove (102) on it. One end of the groove (102) is rotatably connected to the thigh support (2), and slides (103) are symmetrically provided on both sides of the other end of the groove (102). The two ends of the horizontal shaft are respectively slidably engaged with the two slides (103). The base (1) has a notch (104) that can accommodate the locking mechanism (5).

4. A lower limb immobilization and protection device after cerebral angiography according to any one of claims 1 to 3, characterized in that: It also includes a protective cover (6), both ends of which are provided with a first connecting strap (7). One end of the first connecting strap (7) is fixedly connected to the protective cover (6) and the other end of the first connecting strap (7) is provided with a buckle (8). Furthermore, both sides of the thigh support (2) are provided with a second connecting strap (9). One end of the second connecting strap (9) is fixedly connected to the thigh support (2) and the other end of the second connecting strap (9) is provided with a slot (10). The slot (10) is engaged with the buckle (8).

5. A lower limb immobilization and protection device after cerebral angiography according to claim 4, characterized in that: The protective cover (6) has a window with a flip cover (11). One end of the flip cover (11) is hinged to the protective cover (6) and the other end of the flip cover (11) is detachably connected to the protective cover (6). Furthermore, a sealing strip is provided on the edge of the bottom surface of the flip cover (11).

6. A lower limb immobilization and protection device after cerebral angiography according to claim 2 or 3, characterized in that: The positioning disk (502) is provided with a scale.

7. A lower limb immobilization and protection device after cerebral angiography according to any one of claims 1 to 3, characterized in that: The base (1) is 40-60cm long and 15-20cm wide.

8. A lower limb immobilization and protection device after cerebral angiography according to any one of claims 1 to 3, characterized in that: The length of the restraint band (4) is 40-80cm and the width is 5-8cm.

9. A lower limb immobilization and protection device after cerebral angiography according to claim 4, characterized in that: The protective cover (6) has a rectangular or elliptical structure and is made of transparent plastic.

10. A lower limb immobilization and protection device after cerebral angiography according to any one of claims 1 to 3, characterized in that: It also includes a microprocessor (12), an alarm (13), a display screen (14), and at least one pressure sensor (15), wherein the pressure sensor (15) is provided with a restraint strap (4) on the side close to the patient's lower limb, and the pressure sensor (15), the alarm (13), and the display screen (14) are all electrically connected to the microprocessor (12).

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