Auxiliary femoral artery puncture device for cerebral angiography in neurology department

Abstract

The invention discloses a neurology cerebral angiography femoral artery auxiliary puncture device, and relates to the technical field of medical instruments, the neurology cerebral angiography femoral artery auxiliary puncture device comprises an upper leg support plate and a lower leg support plate which are both made of carbon fiber materials, a joint piece is connected between the upper leg support plate and the lower leg support plate, and a compression hemostasis unit is arranged on the upper portion of the upper leg support plate. The compression hemostasis unit comprises an adjusting bearing assembly and a hemostasis assembly, and the fixing assembly is arranged on the upper leg supporting plate and the lower leg supporting plate; a fixing plate in the bearing assembly can be adjusted in an adjusting hole in a lifting mode, in cooperation with fine adjustment of the position of a compression air bag through a retractable rod and a drawstring in the hemostasis assembly, the compression air bag can be accurately adjusted to the proper height and position and can be tightly attached to a puncture point according to the specific position of the femoral artery puncture point of a patient, and therefore the patient femoralis artery puncture point can be more accurately fixed. The problem that a pressurizing hemostasis component cannot be adaptively adjusted is effectively solved, and the applicability of the device and the accuracy of puncture and hemostasis operation are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a femoral artery puncture-assisted device for cerebral angiography in neurology. Background Technology

[0002] With the advancement of medical technology, interventional surgery is becoming increasingly widespread. In many cases, femoral artery puncture is required during interventional procedures. In endovascular interventional treatment of cerebrovascular diseases, the femoral artery approach (femoral artery puncture) is a routine choice. After successful femoral artery puncture, the guidewire tip needs to pass from the femoral artery through the external iliac artery to the junction of the iliac artery and the abdominal aorta. Only after confirming that the guidewire is within the true lumen of the vessel can the vascular sheath be safely inserted into the femoral artery along the guidewire.

[0003] Due to individual differences among patients, the length of their lower limbs varies significantly. However, most existing femoral artery puncture and hemostasis devices have fixed structures and cannot adaptively adjust the pressure-applying hemostasis components at the femoral artery puncture site according to the actual length of the patient's lower limb. For example, the hemostasis components of some devices are positioned in a fixed manner. For patients with longer lower limbs, it may be impossible to accurately apply appropriate pressure to the puncture site; while for patients with shorter lower limbs, the hemostasis components may cause unnecessary compression of surrounding tissues, affecting blood circulation and even leading to patient discomfort and complications. Therefore, this invention proposes a femoral artery puncture-assisted device for neurological cerebral angiography. Summary of the Invention

[0004] The purpose of this invention is to provide a femoral artery-assisted puncture device for neurological cerebral angiography, addressing the issue raised in the background section where individual patient differences lead to significant variations in lower limb length. However, most existing femoral artery-assisted puncture and hemostasis devices have fixed structures, failing to adapt the pressure-applying hemostatic components at the femoral artery puncture site to the actual length of the patient's lower limb. For example, some devices have fixed hemostatic component positions, which may prevent accurate alignment and appropriate pressure application to the puncture site for patients with longer lower limbs; while for patients with shorter lower limbs, the hemostatic components may cause unnecessary compression of surrounding tissues, affecting blood circulation and potentially leading to discomfort and complications.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A neurological cerebral angiography femoral artery-assisted puncture device includes an upper leg support plate and a lower leg support plate, both made of carbon fiber. A joint is connected between the upper and lower leg support plates, and the joint is used to adjust the vertical bending curvature between the upper and lower leg support plates. The device also includes:

[0007] A compression hemostasis unit is used to apply pressure to stop bleeding at the femoral artery puncture site. It is installed on the upper part of the upper leg support plate. The compression hemostasis unit includes an adjusting load-bearing component and a hemostasis component, which are fitted onto the adjusting load-bearing component.

[0008] A fixation component for securing the patient's leg, which is disposed on the upper leg support plate and the lower leg support plate.

[0009] Optionally, the adjusting bearing assembly includes a fixing plate and an adjusting bolt. The fixing plate can be raised and lowered within the adjusting hole, and its two ends are fixed by cooperating with the adjusting bolt.

[0010] Optionally, the hemostatic assembly includes a compression airbag and a connecting plate. The connecting plate is disposed on the upper and lower parts of the side end of the fixed plate, and the side ends of the upper and lower connecting plates are connected to a retractable box. A retractable rod is rotatably connected inside the retractable box. A perforation is provided on the front side of the retractable box. Pull straps are connected to both sides of the compression airbag. The opposite ends of the pull straps pass through the perforation and are wrapped around the outside of the retractable rod. An inflation end is provided on the top front end face of the compression airbag, and the inflation end is connected to an external inflation source.

[0011] Optionally, a pressure detection module is provided on the inner side of the contact surface between the compression balloon and the patient. The pressure detection module is used to detect the pressure value of the compression balloon on the femoral artery puncture point in real time and to feed back the detected pressure data to the main control center.

[0012] Optionally, the pressure detection module includes a pressure sensor and a signal processing circuit, wherein the signal processing circuit is connected to the pressure sensor and is used to amplify, filter, and perform other processing on the received electrical signal.

[0013] Optionally, the fixing component includes an adjustment frame acting on both sides of the leg. The adjustment frame is slidably adjustable to the body of the upper leg support plate and the lower leg support plate. Movable parts are movably connected to the inner sides of the adjustment frames on both sides. Abutment plates that abut against the patient's leg are connected to the opposite sides of the movable parts on both sides. The abutment plates are provided with a number of distributed ventilation holes.

[0014] Optionally, the outer sides of the adjustment frames on both sides are provided with fixing rings, and straps are threaded through the fixing rings on both sides. The outer and inner sides of the straps are respectively provided with matching first and second Velcro straps.

[0015] Optionally, the abutment is made of medical-grade silicone.

[0016] Optionally, the straps are made of elastic webbing material.

[0017] The beneficial effects of this invention are:

[0018] In this invention, the fixed plate in the supporting component can be adjusted up and down within the adjustment hole. Combined with the precise adjustment of the compression balloon position via the retractable rod and pull strap in the hemostasis component, the compression balloon can be accurately adjusted to the appropriate height and position, ensuring a tight fit to the puncture point, based on the specific location of the patient's femoral artery puncture site. This effectively solves the problem of the inability of the pressure hemostasis component to be adaptively adjusted, improving the applicability of the device and the accuracy of puncture and hemostasis operations. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the structure of a femoral artery-assisted puncture device for cerebral angiography in neurology according to the present invention;

[0021] Figure 2 This is a front view of a femoral artery-assisted puncture device for cerebral angiography in neurology according to the present invention;

[0022] Figure 3 This is a schematic diagram of the compression hemostasis unit in this invention;

[0023] Figure 4 This is a schematic diagram of the compression hemostasis unit from another perspective in this invention;

[0024] Figure 5 This is a schematic diagram of the compression airbag in this invention;

[0025] Figure 6 This is a schematic diagram of the fixing component in this invention;

[0026] Figure 7 This is a structural schematic diagram of the fixed component from another perspective in this invention;

[0027] Figure 8 This is a system block diagram of the pressure detection of the hemostasis component in this invention.

[0028] The numbers on the map are:

[0029] 1. Upper leg support plate; 101. Adjustment hole;

[0030] 2. Lower leg support plate; 3. Joint components;

[0031] 4. Compression hemostasis unit; 401. Adjustable load-bearing assembly; 4011. Fixing plate; 4012. Adjusting plug;

[0032] 402. Hemostasis component; 4021. Compression cuff; 4022. Connecting plate; 4023. Retraction box; 4024. Retraction rod; 4025. Perforation; 4026. Pull strap; 4027. Inflation end;

[0033] 5. Fixing components; 501. Adjustment frame; 502. Movable parts; 503. Support plate; 504. Ventilation hole; 505. Fixing square ring; 506. Strap; 507. First Velcro; 508. Second Velcro. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] Example 1:

[0036] As attached Figure 1 To be continued Figure 8 As shown, this invention provides a femoral artery-assisted puncture device for neurological cerebral angiography, comprising an upper leg support plate 1 and a lower leg support plate 2, both made of carbon fiber. An adjustment hole 101 is provided on the upper part of the upper leg support plate 1. A joint 3 connects the upper leg support plate 1 and the lower leg support plate 2. The joint 3 is used to adjust the vertical curvature between the upper leg support plate 1 and the lower leg support plate 2. Since pressure hemostasis is required at the femoral artery puncture site and the patient's lower limb needs to be immobilized, but each patient's leg flexure is different, the vertical support plate is not suitable for all patients. Therefore, the joint 3 is designed to adapt to the different leg flexures of different patients, allowing the device to better fit the patient's leg. By adjusting the joint 3, the upper leg support plate 1 and the lower leg support plate 2 form a suitable angle, thereby providing a certain degree of comfortable immobilization of the patient's lower limb, providing a stable foundation for subsequent puncture and hemostasis operations. It also includes:

[0037] The compression hemostasis unit 4 is used to apply pressure to stop bleeding at the femoral artery puncture site. It is set on the upper part of the upper leg support plate 1. The compression hemostasis unit 4 includes an adjustment bearing component 401 and a hemostasis component 402. The hemostasis component 402 is fitted on the adjustment bearing component 401.

[0038] Fixation component 5, which is used to fix the patient's leg, is set on the upper leg support plate 1 and the lower leg support plate 2.

[0039] refer to Figure 3-5As shown, in one embodiment of the present invention, the adjustable support assembly 401 includes a fixing plate 4011 and an adjusting bolt 4012. The fixing plate 4011 is adjustable in height within the adjusting hole 101, and its two ends are fixed by cooperating with the adjusting bolt 4012. Specifically, medical personnel manually adjust the height of the fixing plate 4011 within the adjusting hole 101 according to the position of the patient's femoral artery puncture point. After adjusting to a suitable position, the adjusting bolt 4012 is tightened. The friction between the adjusting bolt 4012 and the adjusting hole 101 is used to firmly fix the fixing plate 4011 in that position, so as to provide suitable height support for the subsequent hemostasis assembly 402.

[0040] In one embodiment of the present invention, the hemostasis component 402 includes a compression airbag 4021 and a connecting plate 4022. The connecting plate 4022 is disposed on the upper and lower parts of the side end of the fixed plate 4011, and the side ends of the upper and lower connecting plates 4022 are connected to a retractable box 4023. A retractable rod 4024 is rotatably connected inside the retractable box 4023. A perforation 4025 is provided on the front side of the retractable box 4023. Pull straps 4026 are connected to both sides of the compression airbag 4021. The opposite ends of the pull straps 4026 pass through the perforation 4025 and are wrapped around the outside of the retractable rod 4024. An inflation end 4027 is provided on the top front end face of the compression airbag 4021, and the inflation end 4027 is connected to an external inflation source. Specifically, when it is necessary to compress and stop bleeding at the femoral artery puncture site, medical personnel need to precisely adjust the position of the compression airbag 4021 so that it is accurately close to the puncture site. The specific operation is as follows: first, rotate the retractable lever 4024 on one side. During the rotation, the pull strap 4026 on the corresponding side will gradually wrap around the retractable lever 4024 as it rotates. Since one end of the pull strap 4026 is connected to the compression airbag 4021, as the pull strap 4026 is wound and shortened, it will pull the compression airbag 4021 to move a certain distance to that side. Simultaneously, rotating the other side's retractable lever 4024 releases the corresponding side's pull strap 4026, causing it to extend accordingly. This provides space for the compression balloon 4021 to move to the other side. Through this rotation of both retractable levers 4024 and the coordinated retraction and release of the pull strap 4026, the position of the compression balloon 4021 can be precisely adjusted. After adjusting the compression balloon 4021 to a roughly suitable position, rotating both retractable levers 4024 tightens it, ensuring the balloon 4021 fits snugly against the patient's puncture point. Once the position is adjusted and the balloon 4021 is in contact with the puncture point, an external inflation source inflates the balloon 4021 through the inflation end 4027. As gas is continuously injected, the balloon 4021 gradually expands, increasing in volume and applying uniform and appropriate pressure to the puncture point, achieving hemostasis. After the bleeding is stopped, the medical staff rotates the retractable levers 4024 on both sides again to loosen the pull strap 4026, and at the same time opens the relevant valves to release the gas in the compression bag 4021, so that the compression bag 4021 returns to its original state and relieves the pressure on the puncture point.

[0041] refer to Figure 8As shown, in one embodiment of the present invention, a pressure detection module is provided on the inner side of the contact surface between the compression balloon 4021 and the patient. The pressure detection module is used to detect the pressure value of the compression balloon 4021 on the femoral artery puncture point in real time and feed the detected pressure data back to the main control center. Specifically, when medical staff need to apply pressure to stop bleeding at the puncture site, the circuit is turned on, and the patient's pressure value and pressure time value are input to the main control center through the input module. The pressure value corresponds to the mean arterial pressure of each patient. The main control center then controls the external inflation source to inflate the balloon. Because the pressure detection module is provided on the contact surface between the balloon and the puncture bleeding point, the pressure detection module will obtain the pressure information between the balloon and the puncture bleeding point in real time and send the pressure information back to the main control center. When the pressure information is within the pressure value range preset by the main control center, the main control center controls the external inflation source to stop inflating the balloon. At this time, the timing module starts timing the pressure time of the balloon until hemostasis is successful.

[0042] Furthermore, during the aforementioned compression hemostasis process, medical staff can continuously monitor the bleeding at the puncture site. If the bleeding is severe, the pressure value can be increased via the input module; conversely, if the bleeding has stopped, the pressure value can be decreased. This allows for greater patient comfort during hemostasis and reduces the risk of complications such as peripheral circulatory disorders. Simultaneously, this hemostasis procedure not only ensures more precise pressure application from the radial artery compression hemostat but also minimizes the likelihood of medical staff coming into contact with the patient's blood during care, significantly protecting their physical and mental safety.

[0043] In one embodiment of the present invention, the pressure detection module includes a pressure sensor and a signal processing circuit. The signal processing circuit is connected to the pressure sensor and is used to amplify, filter, and process the received electrical signal. Specifically, the pressure sensor is closely fitted to the inner side of the contact surface between the compression balloon 4021 and the patient, enabling it to accurately sense the pressure changes of the compression balloon 4021 at the femoral artery puncture point and convert them into electrical signals. The signal processing circuit amplifies and filters the received electrical signals to improve the accuracy and stability of the signals, and then feeds the processed pressure data back to the main control center to ensure that the main control center can obtain accurate pressure information so as to accurately regulate the working state of the compression balloon 4021.

[0044] refer to Figure 6-7 As shown, in one embodiment of the present invention, the fixing component 5 includes an adjustment frame 501 acting on both sides of the leg. The adjustment frame 501 can be slidably adjusted on the body of the upper leg support plate 1 and the lower leg support plate 2. Movable parts 502 are movably connected to the inner side of the two adjustment frames 501. Abutment plates 503 that abut against the patient's leg are connected to the opposite side of the two movable parts 502. The abutment plates 503 are provided with a plurality of distributed ventilation holes 504.

[0045] The outer sides of the two adjustment frames 501 are provided with fixing rings 505, and straps 506 are threaded through each fixing ring 505. The outer and inner sides of the straps 506 are respectively provided with matching first Velcro 507 and second Velcro 508. Specifically, the medical staff first slides the adjustment frame 501 to a suitable position, and the movable part 502 can adapt to the shape of the leg and rotate at a certain angle, so that the support plate 503 fits the patient's leg better; then the straps 506 are wrapped around the patient's leg and fixed by the adhesion of the first Velcro 507 and second Velcro 508, thereby firmly fixing the patient's leg to the device. At the same time, the ventilation holes 504 on the support plate 503 can ensure the breathability of the leg skin.

[0046] In one embodiment of the present invention, the abutment 503 is made of medical-grade silicone. Specifically, medical-grade silicone has the characteristics of being soft and elastic, which can better conform to the contour of the patient's leg. When fixing the leg, it can not only provide a stable and uniform fixing force, reducing local pressure on the patient's leg and avoiding problems such as skin damage caused by excessive fixation, but also increase the patient's comfort and reduce the patient's discomfort.

[0047] In one embodiment of the present invention, the strap 506 is made of elastic webbing material. Specifically, the strap 506 has good elasticity and flexibility, and can adaptively adjust according to the thickness of the patient's leg, ensuring a secure fit without causing excessive constriction. Simultaneously, the surface of the strap 506 is treated with an anti-slip coating, increasing friction with the patient's clothing or skin, preventing slippage during the fixation process, and ensuring that the fixation component 5 can stably secure the patient's leg.

[0048] Working principle: Medical staff have the patient place their legs on the upper leg support plate 1 and the lower leg support plate 2. According to the length of the patient's legs, the adjustment frame 501 is slid to a suitable position so that the support plate 503 can fit well against both sides of the patient's legs. Then, the strap 506 is wrapped around the patient's legs and fixed by the adhesion of the first Velcro 507 and the second Velcro 508, thereby firmly fixing the patient's legs to the device and ensuring that the legs will not move randomly during subsequent operations.

[0049] Next, based on the location of the patient's femoral artery puncture point, manually adjust the height of the fixation plate 4011 within the adjustment hole 101. Once adjusted to the appropriate position, tighten the adjustment bolt 4012 to fix the fixation plate 4011 in place. Then, the medical staff first rotates the retractable lever 4024 on one side. During the rotation, the pull strap 4026 on the corresponding side will gradually wrap around the retractable lever 4024 as it rotates. Since one end of the pull strap 4026 is connected to the compression cuff 4021, as the pull strap 4026 shortens, it will pull the compression cuff 4021 to move a certain distance to that side. Simultaneously, rotating the other side of the retractable lever 4024 releases the corresponding side's pull strap 4026 on the retractable lever 4024. At this time, the pull strap 4026 on that side will extend accordingly, providing space for the compression balloon 4021 to move to the other side. Through this rotation operation of the two sides of the retractable lever 4024 and the coordination of the pull strap 4026 in and out, the position of the compression balloon 4021 can be finely adjusted. After the compression balloon 4021 is adjusted to a roughly suitable position, the two sides of the retractable lever 4024 are rotated to tighten it, so that the compression balloon 4021 fits tightly against the patient's puncture point. After the position adjustment is completed and the compression balloon 4021 fits against the puncture point;

[0050] When medical staff need to apply pressure to the puncture site to stop bleeding, the circuit is activated, and the patient's pressure and time values ​​are input to the main control center via the input module. The pressure value corresponds to each patient's mean arterial pressure. The main control center controls the external inflation source to inflate the compression cuff 4021 through the inflation end 4027. As gas is continuously added, the compression cuff 4021 gradually expands, increasing in volume. The expansion of the compression cuff 4021 applies pressure to the puncture site. Because a pressure detection module is installed on the contact surface between the cuff and the puncture site, the pressure detection module acquires the pressure information between the cuff and the puncture site in real time and transmits this pressure information back to the main control center. When the pressure information is within the pressure value range preset by the main control center, the main control center controls the external inflation source to stop inflating the cuff. At this time, the timing module starts timing the pressure time of the cuff until hemostasis is successful.

[0051] After the bleeding is stopped, the medical staff rotates the retractable levers 4024 on both sides again to loosen the pull strap 4026, and at the same time opens the relevant valves to release the gas in the compression bag 4021, so that the compression bag 4021 returns to its original state and relieves the pressure on the puncture point.

[0052] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A femoral artery-assisted puncture device for neurological cerebral angiography, comprising an upper leg support plate (1) and a lower leg support plate (2) both made of carbon fiber, wherein a joint (3) is connected between the upper leg support plate (1) and the lower leg support plate (2), the joint (3) being used to adjust the vertical curvature between the upper leg support plate (1) and the lower leg support plate (2), characterized in that, Also includes: Compression hemostasis unit (4), the compression hemostasis unit (4) is used to apply pressure to stop bleeding at the femoral artery puncture point, and it is set on the upper part of the upper leg support plate (1). The compression hemostasis unit (4) includes an adjustment bearing component (401) and a hemostasis component (402), and the hemostasis component (402) is fitted on the adjustment bearing component (401). Fixation component (5), which is used to fix the patient's leg, is disposed on the upper leg support plate (1) and the lower leg support plate (2).

2. The femoral artery-assisted puncture device for neurological cerebral angiography according to claim 1, characterized in that: An adjustment hole (101) is provided on the upper part of the upper leg support plate (1).

3. The femoral artery-assisted puncture device for neurological cerebral angiography according to claim 1, characterized in that: The adjustable bearing assembly (401) includes a fixed plate (4011) and an adjusting bolt (4012). The fixed plate (4011) can be adjusted up and down within the adjusting hole (101), and its two ends are fixed by cooperating with the adjusting bolt (4012).

4. The femoral artery-assisted puncture device for neurological cerebral angiography according to claim 1, characterized in that: The hemostatic assembly (402) includes a compression airbag (4021) and a connecting plate (4022). The connecting plate (4022) is disposed on the upper and lower parts of the side end of the fixed plate (4011), and the upper and lower parts of the connecting plate (4022) are connected to a retractable box (4023). A retractable rod (4024) is rotatably connected inside the retractable box (4023). A perforation (4025) is provided on the front side of the retractable box (4023). Both sides of the compression airbag (4021) are connected to pull straps (4026). The opposite ends of the pull straps (4026) pass through the perforation (4025) and are wrapped around the outside of the retractable rod (4024). The top front end of the compression airbag (4021) is provided with an inflation end (4027), which is connected to an external inflation source.

5. The femoral artery-assisted puncture device for neurological cerebral angiography according to claim 4, characterized in that: The inner side of the contact surface between the compression airbag (4021) and the patient is provided with a pressure detection module. The pressure detection module is used to detect the pressure value of the compression airbag (4021) on the femoral artery puncture point in real time and to feed back the detected pressure data to the main control center.

6. The femoral artery-assisted puncture device for neurological cerebral angiography according to claim 5, characterized in that: The pressure detection module includes a pressure sensor and a signal processing circuit. The signal processing circuit is connected to the pressure sensor and is used to amplify, filter, and process the received electrical signal.

7. The femoral artery-assisted puncture device for neurological cerebral angiography according to claim 1, characterized in that: The fixing component (5) includes an adjustment frame (501) acting on both sides of the leg. The adjustment frame (501) can be slidably adjusted on the body of the upper leg support plate (1) and the lower leg support plate (2). Movable parts (502) are movably connected to the inner side of the adjustment frame (501) on both sides. Abutment plates (503) that abut against the patient's leg are connected to the opposite side of the movable parts (502) on both sides. The abutment plates (503) are provided with a plurality of distributed ventilation holes (504).

8. The femoral artery-assisted puncture device for neurological cerebral angiography according to claim 7, characterized in that: The outer sides of the adjustment frames (501) on both sides are provided with fixing rings (505), and straps (506) are threaded through the fixing rings (505) on both sides. The outer and inner sides of the straps (506) at both ends are respectively provided with a first Velcro (507) and a second Velcro (508).

9. A femoral artery-assisted puncture device for neurological cerebral angiography according to claim 7, characterized in that: The abutment (503) is made of medical-grade silicone.

10. A femoral artery-assisted puncture device for neurological cerebral angiography according to claim 8, characterized in that: The strap (506) is made of elastic webbing material.

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