Accurate positioning external iliac artery-femoral artery lossless pressing type hemostasis system

Abstract

The invention provides a precise-positioning external iliac artery-femoral artery lossless pressing type hemostasis system, which comprises a positioning plate arranged below the pelvis of a patient and used for providing a supporting foundation for the system; the lower end of the supporting rod is fixed on the positioning plate, and the supporting rod is used for supporting the pressing device above the positioning plate; the upper end of the pressing device is fixed to the supporting rod, and the lower end at least comprises a blood vessel limiting part and a blood vessel pressing part; the blood vessel limiting part is of an inverted-U-shaped structure, the width of an opening of the inverted-U-shaped structure is larger than or equal to the width of a blood vessel to be pressed, and the inverted-U-shaped structure is used for moving downwards to limit the blood vessel to be subjected to hemostasis in the U-shaped opening; the blood vessel pressing part can be partially arranged in the U-shaped opening of the blood vessel limiting part in a sliding manner and is used for moving downwards and pressing a blood vessel to be subjected to hemostasis; and the pelvis limiting device is used for limiting the pelvis of the patient. The problems existing in an existing pressing type hemostasis device are solved. Belongs to the technical field of medical treatment, pre-hospital first aid and traffic injury and war injury emergency hemostasis.

Description

Technical Field

[0001] The invention provides a precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, belonging to the technical field of intraoperative bleeding control in medical practice and pre-hospital or war wounded first aid. Background Art

[0002] At present, in order to reduce bleeding and provide a clear surgical field of view during limb surgery, tourniquets are often used. The currently used tourniquets are ring-bound, and the air pressure is increased to exceed the pressure of the arterial blood supply entering the tissue of the limb, so as to block the blood flow far from the circumferential ligation site. This indiscriminate binding method not only blocks the flow of arterial and venous blood, but also compresses and blocks the blood supply of other tissues except blood vessels, such as nerves and muscles, which brings a series of limitations and complications. The main defects are: first, the use of the currently used binding tourniquet will completely block the blood supply of the blood vessels at the distal end of the limb tourniquet, including the blood flow of venous return and collateral circulation, which will cause certain adverse or even serious effects on the patient's body, and will also cause ischemic damage to the tissues below the binding site, especially the peripheral nerves and muscles; second, once the tourniquet is released after the operation, a large amount of blood will gush out instantly from the blocked blood vessels, the amount of bleeding is large, and it is not easy to form blood clots, the bleeding increases, and reperfusion injury may occur. The blocked tissues and organs will cause abnormal metabolic products due to ischemia and hypoxia and release them into the blood circulation to damage other organs of the body; third, some parts near the trunk cannot be used or the effect is not good. For pre-hospital emergency treatment, traffic injuries and combat injuries, the rupture of large blood vessels at the root of the limbs cannot be effectively stopped; fourth, the degree of blockage of the blood flow at the distal end cannot be controllably reduced, but is completely blocked. If the blockage is incomplete, it will lead to increased venous bleeding, and the surgeon often chooses to give up.

[0003] In order to solve the above problems, a selective and controllable femoral artery or femoral vein press-type hemostasis device for the lower limbs of the human body was first introduced, with application number 2020101420477. However, this device occupies a large external space. During surgery, the patient is not sufficiently fixed, and the pressing part is easily shifted during operation. Any slight movement of the patient's limbs may cause the pressing part to slip / shift, affecting the hemostasis effect, and it cannot be adjusted immediately, and the use effect cannot be guaranteed or is prone to failure. As a result, the existing press-type hemostasis device has not been widely used in clinical practice, greatly limiting the promotion of this better hemostasis method. Summary of the invention

[0004] The purpose of the present invention is to provide a device which is fixed on the pelvis by pressing and performs pressing hemostasis on the femoral artery and the external iliac artery, so as to solve the problems existing in the existing pressing hemostasis devices.

[0005] In order to solve the above problems, it is proposed to adopt such a precisely positioned external iliac artery-femoral artery non-destructive pressure hemostasis system.

[0006] Compression site: The external iliac artery (inside the pelvis) crosses the inguinal ligament and becomes the femoral artery, which is about 2-6 cm long.

[0007] Compression method: external compression, compression of the external iliac artery and femoral artery at the same time;

[0008] Purpose: To partially or completely block blood flow to the lower limbs from compressed blood vessels.

[0009] Observation indicators: After the pressure stabilizes, the disappearance of the dorsalis pedis artery can be detected by touching it or by A-type ultrasound to determine whether the blood flow is blocked.

[0010] The basic construction of this system consists of: a positioning plate, which is placed under the patient's pelvis to provide a support base for the system;

[0011] A support rod, the lower end of which is fixed to the positioning plate and is used to support the pressing device above the positioning plate;

[0012] A pressing device, the upper end of which is fixed on the support rod, and the lower end of which at least includes a blood vessel limiting portion and a blood vessel pressing portion;

[0013] The vascular limiting portion is an inverted "U"-shaped structure. The opening width of the inverted "U"-shaped structure is greater than or equal to the width of the blood vessel to be pressed, and is used to limit the external iliac artery-femoral artery within the "U"-shaped opening; adding a vascular limiting structure limits the blood vessel within the required area before pressing the blood vessel, laying the foundation for precise compression of the blood vessel. At the same time, because the vascular compression component and the vascular limiting component are firmly connected together through fasteners, the vascular compression area is changed from one point or surface to three points or surfaces (two points or surfaces of the vascular limiting component are added). This structure significantly increases the stability of the vascular compression device, reduces the slippage of the arterial blood vessel during the vascular compression process, and achieves the purpose of not failing within the time required for the entire operation.

[0014] The vascular pressing part is arranged in the "U"-shaped opening of the vascular limiting part, and moves downward by sliding to compress the external iliac artery-femoral artery; after the pressing is stable, the disappearance of the dorsalis pedis artery is touched or A-type ultrasound detection is performed to determine whether the blood flow is blocked.

[0015] It also includes a pelvic limiting device for limiting the patient's pelvis and preventing the pelvic movement from causing compression of blood vessels and dislocation.

[0016] In the aforementioned pressing hemostasis system, the pressing device comprises a blood vessel limiting portion and blood vessel pressing portions respectively located on both sides of the blood vessel limiting portion, and both the blood vessel limiting portion and the blood vessel pressing portion are vertically position adjustable structures so as to adjust the pressing force;

[0017] In the aforementioned press-type hemostasis system, the blood vessel limiting part and the blood vessel pressing part are fixed one by one to the end of an electric push rod respectively, and the other end of the electric push rod is directly or indirectly fixed to the support rod. The downward movement and pressing of the blood vessel limiting part and the blood vessel pressing part are controlled by the electric push rod respectively. The electric push rod drives the lead screw nut through the motor to convert the rotational motion into linear motion, and combines the stroke control device and a variety of transmission forms to achieve precise linear motion control. The remote control is used to adjust and control the intensity of pressing the blood vessel, and selection and adjustment are performed according to surgical needs.

[0018] The soft tissue of the human body has viscoelasticity in mechanics, that is, when the soft tissue is compressed, it will deform instantly (elasticity), and will also deform or relax stress over time under continuous external force (viscosity), resulting in pressure release, reduced pressure on blood vessels, and partial recovery of blood flow, which seriously affects the compression effect. When the original manual threaded rotary compression squeezes blood vessels and soft tissues, it is difficult to adjust the pressure release and blood flow recovery caused by time changes during surgery, which is also an important reason for the failure of this hemostasis device. Now it has been innovatively changed to an electric push rod linear pressurization, which is operated by a remote control. During the operation, only partial pressure needs to be added to successfully solve the pressure release caused by the viscoelasticity of the soft tissue and effectively control the recanalization of blood flow.

[0019] In the aforementioned pressing hemostasis system, the width of one end of the blood vessel pressing portion is less than or equal to the opening width of the "U"-shaped structure of the blood vessel limiting portion, and the optimal width is slightly smaller than the opening width of the "U"-shaped structure of the blood vessel limiting portion, and one end of the blood vessel pressing portion is slidably disposed in the "U"-shaped structure of the blood vessel limiting portion;

[0020] In the aforementioned pressing hemostasis system, the lower end surface of the blood vessel pressing part is an inwardly concave smooth curved structure to avoid excessive compression of soft tissues such as the inguinal ligament when pressing the blood vessel, which may lead to increased pressure in the accompanying external iliac vein and femoral vein, reflux obstruction, and congestion in the lower limbs.

[0021] In the aforementioned press-type hemostasis system, the width of the positioning plate is at least 10 cm greater than the width of the patient's hip, the patient's hip is placed in the middle of the upper end surface of the positioning plate, the positioning plates on both sides of the patient's hip are respectively fixed with first rope connecting parts, the two ends of the length-adjustable or elastic first connecting belt are respectively connected to the first rope connecting parts on both sides, a pelvic limiting device is also sandwiched between the patient's hip and the positioning plate, and the pelvic limiting device is also located between the first connecting belt and the positioning plate, and the pelvic limiting device is limited to a specific area on the positioning plate by tightening the first connecting belt to avoid displacement of the pelvic limiting device;

[0022] In the aforementioned pressing hemostasis system, the pelvic limiting device is an annular airbag or other annular or quasi-annular soft material, and the size is such that the patient's buttocks / hips can be partially seated in the pelvic limiting device, and can provide effective support for the patient's buttocks / hips;

[0023] In the aforementioned press-type hemostasis system, the pelvic limiting device is two supporting airbags located on both sides of the patient's hips respectively. The supporting airbags are inflatable and deflable strip airbags, and the strip structure is designed to provide more comfortable support for the patient. The use of the airbags, combined with the blood vessel compression structure in the front, forms a configuration that clamps the blood vessels from front to back. Through the pressure regulation of the airbags, the delayed pressure release caused by the viscoelasticity of the pelvic soft tissue and the problem of blood flow recovery can be compensated. By simply increasing the airbag pressure appropriately and raising the pelvis, the pressure on the blood vessels can be restored to the required intensity, the arteries can be re-occluded, and the blood flow can be interrupted.

[0024] In the aforementioned press-type hemostasis system, second rope connecting parts are respectively fixed to the positioning plates on both sides of the patient's waist, and the two ends of the second connecting belt with adjustable length or elasticity are respectively connected to the second rope connecting parts on both sides, the lower end of the support rod is fixed to the positioning plate on the lower side of the patient's perineum, and at least one side of the positioning plate where the support rod is fixed is also fixed to the third rope connecting part, and the third rope connecting part is connected to the third connecting belt, and the other end of the third connecting belt is connected and fixed to the second connecting belt, and the third connecting belt is also a length-adjustable structure or a rope structure with a certain elasticity; the length-adjustable first connecting belt and the length-adjustable second connecting belt, the length-adjustable structural form of which can adopt a similar length-adjustable structure such as a backpack strap, which belongs to the existing conventional selection;

[0025] The aforementioned press-type hemostasis system also includes a connecting rod, which is an "L"-shaped support rod, one end of the support rod is fixed to the positioning plate, one end of the connecting rod is fixed to the other end of the support rod through a connecting part, and the fixed position of the connecting rod on the support rod can be changed by adjusting the connecting part. The upper part of the pressing device is fixed to the connecting rod through another connecting part, and the position of the pressing device on the connecting rod can also be changed by adjusting the connection position of the other connecting part.

[0026] The core advantage of this application is that it can achieve precise positioning, controllable and multi-level compression and stable fixation of the external iliac artery and femoral artery through structural innovation, solving the problems of damage to non-vascular tissues, unstable fixation and uncontrollable hemostasis caused by traditional hemostasis devices. Compared with the prior art, the present invention can respectively locate and selectively and controllably press the external iliac artery and femoral artery through the vascular limiting part and the vascular pressing part, and achieve multiple and multi-level pressing, with better and more thorough hemostasis effect. Due to the various activities of the pelvic structure and the complex anatomical structure of the inguinal area, it is difficult to accurately press the external iliac artery and femoral artery to control lower limb bleeding. This application further improves the accuracy and stability of the pressing, and on this basis, the patient's hip is stabilized by a pelvic limiting device to avoid the patient's hip position being affected by slight movement of the legs or other parts during surgery. The system can change and affect the pressure on the blood vessels to be pressed, so that the external iliac artery and femoral artery can always maintain excellent compression and hemostasis effects during the operation without being affected by the movement of the lower limbs. The intraoperative field of view is clear, and the system does not occupy the space in the surgical area and does not interfere with the surgical operation. When in use, it can block the blood supply of the external iliac artery and femoral artery partially or completely according to the needs, which is especially suitable for operations with large amount of bleeding and long operation time. The position of the pressing head can be fixed very reliably, avoiding the problem of the pressing head slipping due to factors such as the movement of the patient's limbs, and can also be adjusted The downward pressure adjusts the degree of blockage of the blood vessels, that is, the amount of blood flow blocked in a controlled manner. According to needs, the blood flow can be completely blocked or partially blocked to retain a certain amount of blood supply or oxygen supply to the distal human tissues. The vascular communication branches between the pelvis and the lower limbs are also retained to achieve precise blockage, avoiding adverse effects on the limbs or the entire human body due to complete blockage of surrounding blood vessels. It complies with the body's own bleeding-coagulation mechanism and process to achieve self-coagulation of the wound surface during surgery. After the pressure of the device is released, the wound surface basically does not have excessive bleeding reaction, the late hidden blood loss is reduced, and the total amount of bleeding can be greatly reduced; making hemostasis more precise and safe. , reasonable and scientific, and can be especially used for the middle and upper thigh parts near the trunk, including the most common intertrochanteric fractures with a very high incidence rate, expanding the scope of use of controlled bleeding. For the proximal femur, femoral trochanter and middle femur near the trunk, which cannot be used with existing tourniquets, the device can still be used for controlled hemostasis. These parts will cause a large amount of bleeding in the event of trauma, fracture or surgery. At the same time, it can also effectively stop bleeding for pre-hospital emergency, traffic injuries, combat injuries, and rupture of large blood vessels in the lower limbs, especially rupture of large blood vessels located at the root of the thigh, reduce the consequences of losing life due to bleeding, and expand the scope of use of traditional tourniquets. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 is a top view of the present invention (the pelvic limiting device is a strip-shaped air bag);

[0029] Figure 3 yes Figure 2 The main view;

[0030] Figure 4 It is a schematic diagram of the structure of the present invention when it is in use;

[0031] Figure 5 is a top view of the present invention (the pelvic limiting device is a ring-shaped airbag);

[0032] Figure 6 is a schematic diagram of the three-dimensional structure of the pressing device;

[0033] Figure 7 is an assembly diagram of the pressing device;

[0034] Figure 8 It is a schematic diagram of the structure of human tissue when the present invention is in use;

[0035] Among them, the meanings of the figure numbers are as follows: 1-positioning plate, 2-support rod, 3-pressing device, 4-blood vessel pressing part, 5-blood vessel limiting part, 6-electric push rod, 7-first rope connecting part, 8-pelvic limiting device, 9-first connecting belt, 10-second rope connecting part, 11-second connecting belt, 12-third rope connecting part, 13-third connecting belt, 14-connecting rod, 15-support plate, 16-inguinal ligament, 17-external iliac artery. DETAILED DESCRIPTION

[0036] In order to make the present invention more clearly explained, the present invention is further described in detail below with reference to the accompanying drawings.

[0037] Example 1

[0038] Reference Figures 1 to 4 , Figures 6 to 8 This embodiment provides a precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, comprising: a positioning plate 1, a support rod 2, a pressing device 3 and a pelvic limiting device 8.

[0039] The positioning plate 1 is placed under the patient's pelvis to provide a support foundation for the system. Its width is at least 10 cm greater than the width of the patient's hip. The patient's hip is placed in the middle of the upper end surface of the positioning plate 1. The first rope connecting parts 7 are fixed on the positioning plates 1 on both sides of the patient's hip. The two ends of the first connecting belt 9 with adjustable length or elasticity are respectively connected to the first rope connecting parts 7 on both sides. A pelvic limiting device 8 is also sandwiched between the patient's hip and the positioning plate 1. The pelvic limiting device 8 is used to limit the patient's pelvis. The pelvic limiting device 8 is also located between the first connecting belt 9 and the positioning plate 1. The pelvic limiting device 8 is limited to a specific area on the positioning plate 1 by tightening the first connecting belt 9 to avoid displacement of the pelvic limiting device 8.

[0040] As a preferred structure, the pelvic limiting device 8 is two support airbags located on both sides of the patient's hips, and the support airbags are inflatable and deflable strip airbags, and the strip structure is to provide more comfortable support for the patient;

[0041] Further preferably, a support plate 15 for supporting the buttocks / hips is fixedly connected to the middle part of the first connecting belt 9. The support plate 15 can be a cardboard or a support plate with appropriate softness, which is used to properly support the buttocks / hips in the suspended area between the pelvic limit devices 8 to improve comfort, etc.

[0042] A second rope connection part 10 is fixed to the positioning plates 1 on both sides of the patient's waist, and both ends of the second connecting belt 11 with adjustable length or elasticity are respectively connected to the second rope connection parts 10 on both sides, and the lower end of the support rod 2 is fixed to the positioning plate 1 on the lower side of the patient's perineum, and a third rope connection part 12 is also fixed to at least one side of the positioning plate 1 where the support rod 2 is fixed, and the third rope connection part 12 is connected to the third connecting belt 13, and the other end of the third connecting belt 13 is connected and fixed to the second connecting belt 11, and the third connecting belt 13 is also a length-adjustable structure or a rope structure with a certain elasticity; the length-adjustable first connecting belt 9 and the length-adjustable second connecting belt 11, and their length-adjustable structural form can adopt a similar length-adjustable structure such as a backpack strap, which is an existing conventional choice.

[0043] The lower end of the support rod 2 is fixed on the positioning plate 1, and is used to support the pressing device 3 above the positioning plate 1. The support rod 2 is an "L"-shaped support rod. One end of the support rod 2 is fixed to the positioning plate 1, and one end of the connecting rod 14 is fixed to the other end of the support rod 2 through a connecting part, and the fixed position of the connecting rod 14 on the support rod 2 can be changed by adjusting the connecting part. The upper part of the pressing device 3 is fixed to the connecting rod 14 through another connecting part, and the position of the pressing device 3 on the connecting rod 14 can also be changed by adjusting the connection position of another connecting part.

[0044] The upper end of the pressing device 3 is fixed on the support rod 2, and the lower end includes a blood vessel limiting portion 5 and two blood vessel pressing portions 4 respectively located on opposite sides of the blood vessel limiting portion 5; the blood vessel limiting portion 5 is an inverted "U"-shaped structure, the opening width of the inverted "U"-shaped structure is greater than or equal to the width of the blood vessel to be pressed, and is used to move downward to limit the blood vessel to be hemostatic in the "U"-shaped opening; the width of one end of the two blood vessel pressing portions 4 is slightly smaller than the opening width of the "U"-shaped structure of the blood vessel limiting portion 5, and one end of the two blood vessel pressing portions 4 is respectively slidably arranged in the "U"-shaped structure of the blood vessel limiting portion 5, and is used to move downward and press the blood vessel to be hemostatic;

[0045] Both the blood vessel limiting part 5 and the blood vessel pressing part 4 are vertically position adjustable structures, for example, they have an electric push rod, or the lowering length is adjusted by a connecting piece to achieve the downward movement of the blood vessel limiting part 5 and the blood vessel pressing part 4, so as to adjust the pressing force;

[0046] As a preferred structure, the blood vessel limiting part 5 and the blood vessel pressing part 4 are respectively fixed to the end of an electric push rod 6, and the other end of the electric push rod 6 is directly or indirectly fixed to the support rod 2. The electric push rod 6 is used to control the downward movement and pressing of the blood vessel limiting part 5 and the blood vessel pressing part 4, respectively, to achieve simple control of blood vessel compression.

[0047] As a preferred structure, the lower end surface of one of the blood vessel pressing parts 4 is a concave smooth curved structure to avoid excessive compression of soft tissues such as the inguinal ligament when pressing the blood vessel, which may lead to increased pressure in the accompanying external iliac vein and femoral vein, reflux obstruction, and congestion in the lower limbs.

[0048] When in use, the patient's hip is limited: the pelvic limiting device 8 (two support airbags) is placed on both sides of the middle of the positioning plate 1, and the first connecting belt 9 is tightened to limit the two support airbags to a specific area on the positioning plate 1, and the two support airbags are limited as much as possible. Then, the patient's buttocks / hips sit on the upper part of the two support airbags, and then the second connecting belt 11 and the third connecting belt 13 are installed and connected according to the connecting structure. The second connecting belt 11 and the third connecting belt 13 both bypass the upper side of the patient, tighten the second connecting belt 11 and the third connecting belt 13 to fasten the patient to the two support airbags through the connecting belts, further reducing the possibility of the patient's slippage, and then inflate the two support airbags to increase the pressure of the two support airbags on the patient, increase the friction, and reduce the possibility of the patient's slippage again;

[0049] After the patient's blood vessels are pressed and the position of the patient's hip is limited, the support rod 2 and the connecting rod 14 are adjusted to adjust the pressing device 3 to the top of the blood vessel to be pressed, and the blood vessel limiting part 5 is moved down to the external iliac artery-femoral artery to make the external iliac artery enter the "U"-shaped opening of the blood vessel limiting part 5, and the external iliac artery-femoral artery is pre-pressed / pressed for the first time to block part of the blood flow, that is, decompression (improving the compression stability and effect of the blood vessel pressing part 4), and then, the blood vessel pressing parts 4 on both sides are controlled to press down to press the external iliac artery-femoral artery inside and outside the inguinal ligament. If the blood flow of the external iliac-femoral artery cannot be completely blocked; the hydraulic push rod (electric push rod 6) can be used to slowly and repeatedly increase the blood vessel compression pressure until the pressing effect of the external iliac artery-femoral artery achieves the expected purpose, so that the hemostasis effect is better and more thorough. The present application further improves the accuracy and stability of pressing, effectively controls the pressing intensity and the blood flow of the blood vessels, and reduces the common adverse injuries of conventional tourniquets.

[0050] Example 2

[0051] Reference Figure 5 The difference between this embodiment and embodiment 1 is that the pelvic limiting device 8 is an annular airbag or other annular or quasi-annular soft material. An annular airbag that can withstand sufficient pressure strength is the best. The size is convenient for the patient's buttocks / hips to sit partially into the pelvic limiting device 8, and can provide effective support for the patient's buttocks / hips. When in use, the pelvic limiting device 8 is placed in the middle of the positioning plate 1, and the first connecting belt 9 is tightened to limit the pelvic limiting device 8 to a specific area on the positioning plate 1 to prevent the pelvic limiting device 8 from shifting. Then, the patient's buttocks The patient sits on the pelvic limit device 8 with the head / hip, and then the second connection belt 11 and the third connection belt 13 are installed and connected according to the connection structure. The second connection belt 11 and the third connection belt 13 are both passed around the upper side of the patient. The second connection belt 11 and the third connection belt 13 are tightened to fasten the patient to the pelvic limit device 8 through the connection belts, further reducing the possibility of the patient's slippage. If the patient is not firmly positioned, the pelvic limit device 8 can be inflated again to increase the pressure of the pelvic limit device 8 on the patient, increase the friction, and further reduce the possibility of slippage. The use of the pressing device 3 is the same as that in Example 1.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, characterized in that: include: A positioning plate (1) is placed under the patient's pelvis to provide a support base for the system; A support rod (2), the lower end of which is fixed on the positioning plate (1), and is used to support the pressing device (3) above the positioning plate (1); A pressing device (3), the upper end of which is fixed on the support rod (2), and the lower end of which at least comprises a blood vessel limiting portion (5) and a blood vessel pressing portion (4); The blood vessel limiting portion (5) is an inverted "U"-shaped structure, the opening width of the inverted "U"-shaped structure is greater than the width of the blood vessel to be pressed, and is used to limit the external iliac artery or the femoral artery within the "U"-shaped opening; The blood vessel pressing portion (4) is arranged in the "U"-shaped opening of the blood vessel limiting portion (5) and is used to move downward and press the external iliac artery or the femoral artery.

2. According to claim 1, a precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, characterized in that: The pressing device (3) comprises a blood vessel limiting portion (5) and blood vessel pressing portions (4) located on opposite sides of the blood vessel limiting portion (5), and both the blood vessel limiting portion (5) and the blood vessel pressing portion (4) are vertically adjustable structures so as to adjust the pressing force.

3. According to claim 2, a precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, characterized in that: The blood vessel limiting portion (5) and the blood vessel pressing portion (4) are fixed to the end of an electric push rod (6) in a one-to-one correspondence, and the other end of the electric push rod (6) is directly or indirectly fixed to the support rod (2). The downward movement and pressing of the blood vessel limiting portion (5) and the blood vessel pressing portion (4) are respectively controlled by the electric push rod (6).

4. According to claim 2, a precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, characterized in that: The width of one end of the blood vessel pressing portion (4) is less than or equal to the opening width of the "U"-shaped structure of the blood vessel limiting portion (5), and one end of the blood vessel pressing portion (4) is slidably disposed in the "U"-shaped structure of the blood vessel limiting portion (5).

5. According to claim 2, a precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, characterized in that: The lower end surface of one of the blood vessel pressing parts (4) is a smooth curved surface structure with an inward concave shape.

6. According to claim 1, a precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, characterized in that: The width of the positioning plate (1) is at least 10 cm greater than the width of the patient's hip. The patient's hip is placed in the middle of the upper end surface of the positioning plate (1). First rope connecting parts (7) are fixed to the positioning plates (1) on both sides of the patient's hip. The two ends of the length-adjustable or elastic first connecting belt (9) are respectively connected to the first rope connecting parts (7) on both sides. A pelvic limiting device (8) is also sandwiched between the patient's hip and the positioning plate (1). The pelvic limiting device (8) is also located between the first connecting belt (9) and the positioning plate (1). By tightening the first connecting belt (9), the pelvic limiting device (8) is limited to a specific area on the positioning plate (1) to prevent the pelvic limiting device (8) from shifting.

7. According to claim 6, a precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, characterized in that: The pelvic limiting device (8) is an annular airbag or other annular or quasi-annular soft material.

8. According to claim 6, a precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, characterized in that: The pelvic limiting device (8) is two supporting air bags respectively located on both sides of the patient's hips, and the supporting air bags are inflatable and deflable strip-shaped air bags.

9. According to claim 1, a precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system, characterized in that: A second rope connection part (10) is fixed to the positioning plates (1) on both sides of the patient's waist, and the two ends of a second connection belt (11) with adjustable length or elasticity are respectively connected to the second rope connection parts (10) on both sides. The lower end of the support rod (2) is fixed to the positioning plate (1) on the lower side of the patient's perineum, and a third rope connection part (12) is also fixed to at least one side of the positioning plate (1) where the support rod (2) is fixed, and the third rope connection part (12) is connected to a third connection belt (13), and the other end of the third connection belt (13) is connected and fixed to the second connection belt (11), and the third connection belt (13) is also a length-adjustable structure or a rope structure with a certain elasticity.

10. The precisely positioned external iliac artery-femoral artery non-destructive pressing hemostasis system according to claim 1, characterized in that: It also includes a connecting rod (14), the support rod (2) is an "L"-shaped support rod, one end of the support rod (2) is fixed to the positioning plate (1), one end of the connecting rod (14) is fixed to the other end of the support rod (2) through a connecting portion, and the fixed position of the connecting rod (14) on the support rod (2) can be changed by adjusting the connecting portion, the upper part of the pressing device (3) is fixed to the connecting rod (14) through another connecting portion, and the position of the pressing device (3) on the connecting rod (14) can also be changed by adjusting the connection position of the other connecting portion.

Images