Vascular intervention devices

Abstract

The present invention discloses a vascular intervention device, which is characterized by comprising: a main body of the vascular intervention device, a steering magnetic element, the front end of the main body is a streamlined structure, and the steering magnetic element is arranged on the main body. The present invention has the following beneficial effects: 1. With an external auxiliary device, it has a better steering effect when encountering a vascular branch. 2. The structure is simple and easy to operate.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a vascular intervention device. Background Art

[0002] At present, in the prior art, the vascular intervention device system uses a puncture needle to pierce the blood vessel under the guidance of a CT imaging device, and then inserts the vascular intervention device with a guide wire into the blood vessel through the needle, and pushes the guide wire manually or semi-mechanically, and the guide wire pushes the instrument in the blood vessel along the blood vessel to a designated position. A utility model patent with the patent number CN201520791312.9 published in China provides a vascular intervention device, including a needle body and a needle handle, wherein the needle body is connected to the needle handle, the end of the needle handle is closed, the needle handle is provided with a guide wire hole, the outer coaxial sleeve of the needle body is provided with a flexible hemispherical balloon, the opening end of the hemispherical balloon faces the needle handle, and a capillary channel is provided on the outer surface of the hemispherical balloon. The utility model has a good effect of controlling the puncture depth, but because the blood vessels in the human body have many branches and complex distribution, and the sizes of blood vessels of different people are slightly different, as a result, ordinary vascular intervention devices cannot effectively turn when encountering a blood vessel branch, and cannot reach the specified position. At the same time, when the instrument in the blood vessel moves, it will contact with the blood vessel wall to generate a certain pressure and friction, which will cause damage to the blood vessel wall if not paid attention. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a new design, a vascular intervention device, a main body, and a steering magnetic element. The front end of the main body is a streamlined structure, and the steering magnetic elements are divided into two groups, one group is arranged at the front end of the main body, and the other group is arranged at the rear end of the main body.

[0004] Preferably, the steering magnetic element is a circular ring magnet with two magnetic poles distributed laterally, one is embedded in the front end of the main body, and the other is embedded in the rear end of the main body, and the outer magnetic poles of the two circular ring magnets are opposite magnetic poles.

[0005] Preferably, there are three steering magnetic elements, one embedded in the front end of the main body, and the other two are respectively embedded in the upper part of the left and right side walls of the main body. The length of the protruding parts of the three steering magnetic elements is one half to one third of the overall length, and the magnetic poles of the protruding parts of the steering magnetic element embedded in the front end of the main body and the magnetic poles of the protruding parts of the steering magnetic elements embedded in the upper part of the left and right side walls are opposite magnetic poles.

[0006] Preferably, a magnetic isolation material is provided around the embedded main body portion of the steering magnetic element, and the magnetic isolation material wraps around the periphery of the embedded portion of the steering magnetic element.

[0007] Preferably, it comprises a medicine bin, which is arranged inside the main body and has a birdcage-like structure.

[0008] Preferably, the drug reservoir is made of cellulose.

[0009] Preferably, it also includes a sensing device, which includes a sensing part, a processor chip, and a wireless signal transmitter. The sensing part is a gel-like substance that is easily deformed when subjected to pressure and covers the front end of the main body. The processor chip and the wireless signal transmitting chip are electrically connected to the sensing part.

[0010] Preferably, it further comprises a thrombus remover, which is arranged at the front end of the main body and comprises a double helical structure composed of a plurality of linear objects.

[0011] Preferably, the main body is made of polyethylene material.

[0012] The beneficial effects brought by the present invention are as follows: 1. With the external auxiliary device, the turning operation can be performed when encountering a blood vessel branch. 2. The structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 The steering magnetic element is a structural diagram of three magnets.

[0015] Figure 2 The steering magnetic element is a structural diagram of two circular ring magnets.

[0016] Figure 3 is a schematic diagram of the front end of the steering magnetic element embedded in the main body.

[0017] Figure 4 Schematic diagram of the steering magnetic element embedded in the left side wall of the main body.

[0018] Figure 5 is a schematic diagram of the steering magnetic element embedded in the right side wall of the main body.

[0019] Figure 6 It is a schematic diagram of a drug compartment arranged outside the main body.

[0020] Figure 7 It is a schematic diagram showing that a drug compartment is provided inside the main body and a sensor is provided at the front end.

[0021] Figure 8 It is a schematic diagram of the sensor device structure.

[0022] Fig. 9 This is a schematic diagram of the thrombectomy device in its deployed state.

[0023] Fig.10This is a schematic diagram of the thrombectomy device in the retracted state.

[0024] In the figure, 1. steering magnetic element, 2. main body, 3. drug compartment, 4. thrombus remover, 5. sensing part, 6. magnetic isolation material, 7. processor chip, 8. signal transmitter chip. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figure 2 As shown, a vascular intervention device includes a main body 2 and a steering magnetic element 1. The front end of the main body 2 is a streamlined structure, and the steering magnetic element 1 is arranged on the main body 2. The steering magnetic element 2 is divided into two groups, one group is arranged at the front end of the main body 2, and the other group is arranged at the rear end of the main body 2. It is preferably set as an annular magnet with two magnetic poles distributed horizontally, one magnetic pole 1-a is embedded in the front end of the main body 2, and one magnetic pole 1-b is embedded in the rear end of the main body 2. The outer magnetic poles of the two annular magnets are opposite magnetic poles. With an external guiding device with a magnetic element (not shown in the figure), the annular magnet at the front end of the main body 2 generates an attractive force or a repulsive force, and the annular magnet at the rear end generates a repulsive force or an attractive force, so that the intervention device can be deflected, and the vascular intervention device can make an effective turn when encountering a vascular fork. At the same time, the structure is simple and easy to use.

[0028] Example 2

[0029] like Figures 1 to 7As shown, a vascular intervention device includes a main body 2 and a steering magnetic element 1. The front end of the main body 2 is a streamlined structure, and the steering magnetic element 1 is arranged on the main body 2. There is at least one steering magnetic element 1, preferably three, one of which is embedded in the front end of the main body 2 to play a main guiding role. In order to achieve the best effect, the steering magnetic element 1a can be embedded in the top position of the front end of the main body 2, and the other two 1b and 1c are respectively embedded in the upper part of the left and right side walls of the main body 2 to play an auxiliary guiding role. In order to achieve the best effect, it is best to embed the other two steering magnetic elements 1b and 1c on the two side walls near the tail of the main body. In order to prevent one end of the steering magnetic element from being interfered by the other end when being guided, one end is completely embedded in the main body when embedded, so that the protruding length of the other end only accounts for one-half to one-third of the overall length. At the same time, in order to better offset the interference of one end on the other end when being guided, a magnetic isolation material 6 is arranged around one end of the embedded part. In order to ensure safety, medical organic compounds are generally used as the magnetic isolation material 6, such as cellulose, etc. The protruding parts 1a-1 of the two steering magnetic elements 1a embedded in the front end It can be either an S pole or an N pole. The protruding parts 1b-1 and 1c-1 of the steering magnetic elements 1b and 1c embedded in the side wall can also be N poles or S poles. In combination with an external guiding device with magnetic elements (not shown in the figure), the device can have a steering effect. In order to achieve the best steering effect and for ease of use, the protruding parts 1b-1 and 1c-1 of the two steering magnetic elements on the side wall are preferably set to be like poles and have opposite poles to the protruding part 1a-1 at the front end. It also includes a drug bin 3. The drug bin 3 is designed to be able to transport drugs to a designated location to solve problems such as thrombus in blood vessels. The drug bin 3 can be set either inside the interventional device 2 or outside the interventional device 2. If it is set inside, the drug bin 3 can be set into a birdcage shape, which can play a limiting role to ensure that drugs such as capsules can reach the designated location. If the drug bin 3 is set outside, such as Figure 6 As shown, the drug chamber 3 can be set to a transparent shape 3a, and a through hole 3-1 is left. In this way, after the drug chamber 3a reaches the designated position, a laser device (not shown in the figure) can be used to directly irradiate the drug chamber 3a from the outside, so that the drug dissolves and flows into the blood through the through hole 3-1. Preferably, cellulose can be selected as the material for making the drug chamber. As a polymer medical material, cellulose has structural damage in a physiological environment, and its degradation products can be absorbed or excreted by the body through normal metabolism. The beneficial effect of this solution is that the drug can reach the designated position more accurately than before and clear blood vessel thrombus through the drug.

[0030] Example 3

[0031] like Figures 7 to 10As shown, a vascular intervention device includes a main body 2 and a steering magnetic element 1. The front end of the main body 2 is a streamlined structure, and the steering magnetic element 1 is arranged on the main body 2. There is at least one steering magnetic element 1, preferably three, one of which is embedded in the front end of the main body 2 to play a major role in guiding the direction. In order to achieve the best effect, the steering magnetic element 1a can be embedded in the top position of the front end of the main body 2, and the other two 1b and 1c can be embedded in the upper part of the left and right side walls of the main body 2 respectively to play an auxiliary guiding role. In order to achieve the best effect, it is best to embed the other two steering magnetic elements 1b and 1c on the two side walls near the tail of the main body. In order to prevent one end of the steering magnetic element from being interfered by the other end when being guided, one end is completely embedded in the main body during embedding, so that the protruding length of the other end only accounts for one-half to one-third of the overall length. At the same time, in order to better offset one Interference when the other end is guided, a magnetic isolation material 6 is set around one end of the embedded part. In order to ensure safety, medical organic compounds are generally used as magnetic isolation material 6, such as cellulose, etc. The two protruding parts 1a-1 of the steering magnetic element 1a embedded in the front end can be either S poles or N poles, and the protruding parts 1b-1 and 1c-1 of the steering magnetic elements 1b and 1c embedded in the side walls can also be N poles or S poles. In conjunction with an external guiding device with a steering magnetic element (not shown in the figure), the device can have a steering effect. In order to make the steering effect the best and for ease of use, the two protruding parts 1b-1 and 1c-1 of the steering magnetic elements on the side walls are preferably The device is set to have the same magnetic pole and the front end protruding part 1a-1 has the opposite magnetic pole. It also includes a drug warehouse 3. The drug warehouse 3 is used to deliver the drug to the specified position to solve the problem of thrombus in the blood vessel. The drug warehouse 3 can be set inside the intervention device 2 or outside the intervention device 2. If it is set inside, the drug warehouse 3 can be set into a birdcage shape, which can play a limiting role to ensure that the drug such as capsule can reach the specified position. If the drug warehouse 3 is set outside, the drug warehouse 3 can be set to a transparent shape 3a and leave a through hole 3-1. In this way, after the drug warehouse 3a reaches the specified position, the laser device (in the figure) can be used. The drug compartment 3a is directly irradiated from the outside to dissolve the drug and flow into the blood through the through hole 3-1. Preferably, the material for making the drug compartment can be cellulose. Cellulose is a polymer medical material. After structural damage occurs in a physiological environment, its degradation products can be absorbed or excreted by the body through normal metabolism. The sensor device also includes a sensing part 7, a processor chip 8, and a wireless signal transmitter 9. The sensing part 7 is a colloid covering the front end of the main body. The processor chip 8 and the wireless signal transmitter chip 9 are electrically connected to the sensing part 7. The sensing part 7 is prone to deformation when subjected to pressure. When a certain part of the sensing part is deformed, the processor will receive the signal.The analog signal is converted into a digital signal and transmitted to the wireless signal transmitter, which transmits the information to an external receiving device (not shown in the figure). The sensing device is used to test whether the pressure of the device on the blood vessel wall is too large when the vascular device moves and turns. It also includes a thrombus remover 4, which is arranged at the front end of the main body 2 and includes a double helical structure 4b composed of multiple linear objects. The helical structure 4b can collapse and fold under pressure and has the ability to self-expand and recover in a free state. When the thrombus remover 4 just enters the blood vessel, it is in a compressed state and collapses and folds into a contracted state 4a, so that it can enter the blood vessel and move. When it reaches the designated position, it slowly expands and recovers to a double helical structure 4b. The size of the helical structure corresponds to the size of the blood vessel wall, so that the thrombus remover 4 can clamp the thrombus and take it away from the blood vessel. The beneficial effects of this scheme are: 1. It can timely adjust the force of the vascular intervention device to avoid damage to the blood vessel wall, and 2. It can safely deal with the thrombus on the blood vessel wall. ,

Claims

1. A vascular intervention device, characterized in that: The invention comprises a main body (2) and a steering magnetic element (1), wherein the front end of the main body (2) is a streamlined structure, the steering magnetic element (1) is in two groups, one group is arranged at the front end of the main body (2), and the other group is arranged at the rear end of the main body (2), the steering magnetic element (1) is in three groups, the first steering magnetic element is embedded in the front end of the main body (2), the second steering magnetic element is embedded in the upper part of the left side wall of the main body (2), and the third steering magnetic element is embedded in the upper part of the right side wall of the main body (2), the length of the protruding parts of the three steering magnetic elements is one half to one third of the overall length, and the protruding part (1a-1) of the first steering magnetic element is parallel to the protruding parts of the second steering magnetic element and the third steering magnetic element. The output parts (1b-1) and (1c-1) are opposite magnetic poles. A magnetic isolation material (6) is arranged around the embedded main body part of the steering magnetic element (1). The magnetic isolation material (6) is wrapped around the periphery of the embedded part of the steering magnetic element (1). The device also includes a drug bin (3). The drug bin (3) is arranged inside the main body (2) and is a birdcage-like structure. The drug bin (3) is made of cellulose. The device also includes a sensing device. The sensing device includes a sensing part (5), a processor chip (7), and a wireless signal transmitter chip (8). The sensing part (5) is a colloid and covers the front end of the main body. The processor chip (7) and the wireless signal transmitter chip (8) are electrically connected to the sensing part (5).

2. The vascular intervention device according to claim 1, characterized in that: It also comprises a thrombus remover (4), which is arranged at the front end of the main body (2) and has a double helical structure composed of a plurality of thread-like objects.

3. The vascular intervention device according to claim 2, characterized in that: The main body (2) is made of polyethylene material.

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