A driving mechanism for intracranial blood vessel opening and sealing equipment

Abstract

The present invention discloses a driving mechanism for intracranial vascular opening and plugging equipment, which belongs to the field of medical device technology, and includes a first driving mechanism and a second driving mechanism, wherein the first driving mechanism includes a push head arranged outside a housing, a push rod arranged inside the housing and connected to the push head, a first transmission plate connected to the push rod, a fixed plate arranged inside the housing, and a second transmission plate arranged on the fixed plate and connected to the first transmission plate, the second transmission plate is fixedly connected to a positioning guide wire, and the second driving mechanism includes a plugging release button arranged outside the housing, a fixed block arranged inside the housing and connected to a delivery tube and a fixed plate, respectively, and a fan-shaped gear connected to the plugging release button and the fixed plate, respectively. The present invention can accurately drive the positioning guide wire to pop out to the femoral artery opening point, ensure accurate positioning, and then quickly drive the positioning guide wire and the delivery tube to withdraw, and release the plugging material, thereby enhancing the operational convenience and use stability of the opening plugging.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a driving mechanism for an intracranial blood vessel opening and blocking device. Background Art

[0002] Intracranial aneurysms are mostly abnormal bulges on the walls of intracranial arteries. They are the leading cause of subarachnoid hemorrhage and the third most common cause of cerebrovascular accidents, after cerebral thrombosis and hypertensive cerebral hemorrhage. They can occur at any age, but are more common in middle-aged and elderly women between 40 and 60 years old. Currently, most scholars believe that intracranial aneurysms are caused by local congenital defects in the walls of intracranial arteries and increased intracavitary pressure. Hypertension, cerebral arteriosclerosis, and vasculitis are related to the occurrence and development of aneurysms.

[0003] Usually, patients with intracranial aneurysms can be treated by craniotomy, aneurysm clipping or intracranial aneurysm interventional embolization. With the continuous advancement and maturity of technology, most of the interventional embolization methods for intracranial aneurysms can achieve good treatment results. Through interventional surgery, coils are inserted into the aneurysm, making the inside of the aneurysm a dead space, and the aneurysm wall gradually becomes ischemic and necrotic, thereby effectively eliminating the existence of the aneurysm.

[0004] Femoral artery puncture is one of the common ways of interventional diagnosis and treatment. There are several methods for hemostasis at the puncture point after femoral artery intervention: manual compression hemostasis, mechanical compression hemostasis, vascular closure device hemostasis, etc. The traditional manual compression method has been used clinically for a long time, but long-term compression hemostasis and bed rest not only increase the workload of medical staff, but also increase the pain of patients. Among them, the vascular closure device releases a plugging material that can be absorbed by the human body outside the arterial wall at the femoral artery opening point. While the plugging material expands while absorbing blood, its mesh structure can promote the aggregation of platelets and red blood cells to achieve the purpose of hemostasis. At present, most of the plugging materials are polyethylene glycol, polyglycolide, polylactide, chitosan and collagen, which can be naturally degraded into water and carbon dioxide in the human body. Most of them are absorbed within 30 days and completely degraded within 60-90 days.

[0005] In order to ensure that the blocking material can reach the puncture point accurately, it is necessary to use a guide wire to locate the blood vessel at the opening point before releasing the blocking material, and then release the blocking material accurately to the site. To this end, the blood vessel opening blocking device needs to adopt a faster and more effective driving mechanism to enhance the efficiency of guide wire positioning and blocking material release, thereby shortening the time of interventional treatment and reducing the pain of patients.

[0006] Therefore, the present invention provides a driving mechanism for an intracranial vascular opening and sealing device to at least solve some of the above-mentioned technical problems. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a driving mechanism for an intracranial blood vessel opening and sealing device to at least solve part of the above-mentioned technical problems.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0009] A driving mechanism for an intracranial vascular opening and blocking device includes a first driving mechanism connected to a positioning guide wire for driving the positioning guide wire to pop out to a blocking point, and a second driving mechanism connected to the first driving mechanism for driving the positioning guide wire and a delivery tube to withdraw and release the blocking material; the first driving mechanism includes a pushing head arranged outside a shell, a pushing rod arranged inside the shell and connected to the pushing head, a first transmission plate connected to the pushing rod, a fixing plate arranged inside the shell, and a second transmission plate arranged on the fixing plate and connected to the first transmission plate, the second transmission plate is fixedly connected to the positioning guide wire, and the second driving mechanism includes a blocking release button arranged outside the shell, a fixing block arranged inside the shell and connected to the delivery tube and the fixing plate respectively, and a fan gear connected to the blocking release button and the fixing plate respectively.

[0010] Furthermore, the fixed plate is a channel steel structure, a mounting groove is provided on the side wall of the fixed plate, the second transmission plate is movably arranged in the mounting groove, a rotating shaft is provided between the top wall and the bottom wall of the fixed plate, and a rotating gear is provided on the rotating shaft.

[0011] Furthermore, a first connecting plate is vertically provided on the first transmission plate, a first rack matched with the rotating gear is provided on the first connecting plate, a second rack matched with the rotating gear is provided on the second transmission plate, and the rotating gear is respectively meshed with the first rack and the second rack.

[0012] Furthermore, the fan-shaped gear includes a gear sector, and a rotating shaft hingedly connected to the blocking release button and arranged on the gear sector. A third rack matched with the gear sector is provided on the fixed plate, the gear sector is meshed with the third rack, an arc-shaped protrusion is provided on the gear sector, a guide arc groove matched with the arc-shaped protrusion is opened in the shell, and the arc-shaped protrusion is installed in the guide arc groove.

[0013] Furthermore, the blocking release button includes a button panel, a rotating part arranged on the button panel, and a fixed part arranged on the rotating part. The rotating part is provided with a storage groove adapted to the rotating shaft. The rotating shaft is hingedly connected to the button panel. The button panel is arranged outside the shell, and the fixed part is hinged inside the shell.

[0014] Furthermore, a guide groove and a limit column are provided in the shell, the front section of the push rod is arranged in the guide groove, and the middle section of the push rod is provided with a limit block which is unidirectionally limited by the limit column, and one side of the limit block is a right-angle side and the other two sides are arc sides.

[0015] Furthermore, a first fixed column is provided in the shell, a protrusion is provided in the middle section of the push rod, a second fixed column is provided on the protrusion, a limit spring for limiting the push rod is provided between the first fixed column and the second fixed column, and both ends of the limit spring are respectively fixed to the first fixed column and the second fixed column.

[0016] Furthermore, a first mounting groove is provided in the shell, the first transmission plate is movably provided in the first mounting groove, a first limit strip is provided on the first transmission plate, a first limit block and a second limit block are provided on the first limit strip, the first limit block is located at the end of the first limit strip, the second limit block is an arc-shaped protrusion, and a buffer block for slowing down the movement of the second limit block is provided on the first mounting groove.

[0017] Furthermore, two sets of parts are provided on the second transmission plate, and the positioning guide wire is passed through the two sets of parts. A movable sleeve is provided on the proximal set of parts, and the positioning guide wire is fixed in the movable sleeve. A limiting sleeve for limiting the movable sleeve is provided on the movable sleeve. The limiting sleeve is located between the two sets of parts, and the outer diameter of the limiting sleeve is larger than the outer diameter of the movable sleeve.

[0018] Furthermore, the positioning guide wire passes through the fixing block and extends into the conveying tube. The fixing block is provided with a fixing protrusion. The fixing plate is provided with a fixing groove matched with the fixing protrusion. The fixing protrusion is embedded in the fixing groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention has a simple structure, a scientific and reasonable design, and is easy to use. It can accurately drive the positioning guide wire to pop out to the femoral artery opening point to ensure the precise positioning of the blocking material, and then quickly drive the positioning guide wire and the delivery tube to withdraw and release the blocking material, greatly enhancing the operation convenience and use stability of the intracranial vascular opening and blocking device.

[0021] The present invention includes a first driving mechanism and a second driving mechanism. The first driving mechanism includes a push head, a push rod, a first transmission plate, a fixed plate and a second transmission plate. The second transmission plate is fixedly connected to the positioning guide wire. By pressing the push head outside the housing, the push rod, the first transmission plate and the second transmission plate are pushed to move, so that the positioning guide wire arranged on the second transmission plate is extended from the delivery tube and extends into the inner wall of the blood vessel at the femoral artery opening point. Then, the blocking device and the arterial sheath are manually controlled to be withdrawn as a whole, so that the annular head of the positioning guide wire hooks the inner wall of the blood vessel to achieve accurate positioning of the blocking. The second driving mechanism includes a blocking release button, a fixed block and a sector gear. The fixed block is fixedly connected to the delivery tube. By pressing the blocking release button, the sector gear is driven to drive the fixed plate to move, thereby withdrawing the delivery tube and the positioning guide wire connected to the fixed plate, and exposing the blocking material at the inner end of the delivery tube above the blood vessel incision point and gradually sinking below, so that the blood-sucking expansion is achieved to achieve blood vessel blocking.

[0022] In the first driving mechanism of the present invention, the push head, the push rod and the first transmission plate adopt a push-pushing driving mode, and the first transmission plate and the second transmission plate adopt a gear transmission driving mode. The gear transmission can set the internal parts layout to a rotary type, which rationally utilizes the narrow space inside the shell, can minimize the volume of the blocking device, and improves the convenience of operation. In the second driving mechanism, the blocking release button, the fan gear and the fixed plate also adopt a gear transmission driving mode, and the fixed plate is used as a common connector for the delivery tube and the positioning guide wire, and the delivery tube and the positioning guide wire are synchronously withdrawn through the blocking release button. The present invention adopts a reasonable driving mechanism, which greatly reduces the area occupied by parts, makes the internal layout more compact, makes the blocking device more compact and precise, and improves the comfort of use and the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention.

[0024] Figure 2 It is the front view of the fixing plate of the present invention.

[0025] Figure 3 It is a top view of the fixing plate of the present invention.

[0026] Figure 4 This is a front view of the first transmission plate of the present invention.

[0027] Figure 5 It is a top view of the first transmission plate of the present invention.

[0028] Figure 6 It is the front view of the second transmission plate of the present invention.

[0029] Figure 7 It is a top view of the second transmission plate of the present invention.

[0030] Figure 8 This is an enlarged view of the connection between the blocking release button and the sector gear of the present invention.

[0031] Fig. 9 It is a side view of the blocking release button of the present invention.

[0032] Fig.10 This is a diagram of the engagement between the rotating gear and the first rack and the second rack of the present invention.

[0033] Fig.11 This is a diagram showing the connection between the push rod, the first transmission plate and the housing of the present invention.

[0034] The names corresponding to the reference numerals are:

[0035] 1-positioning guide wire, 2-delivery tube, 3-housing, 4-push head, 5-push rod, 6-first transmission plate, 7-fixed plate, 8-second transmission plate, 9-blocking release button, 10-sector gear, 11-fixed block, 12-fixed protrusion, 31-guide arc groove, 32-guide groove, 33-limiting column, 34-first fixed column, 35-limiting spring, 36-first mounting groove, 37-buffer block, 51-limiting block, 52-protrusion, 53-second fixed column, 61- The first connecting plate, 62-the first rack, 63-the first limiting strip, 64-the first limiting block, 65-the second limiting block, 71-the mounting groove, 72-the rotating shaft, 73-the rotating gear, 74-the third rack, 75-the fixing groove, 81-the second rack, 82-the fitting, 83-the movable sleeve, 84-the limiting sleeve, 91-the button panel, 92-the rotating part, 93-the fixing part, 94-the storing groove, 101-the gear sector, 102-the rotating shaft, 103-the arc-shaped protrusion. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore they cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figure 1-11As shown, the driving mechanism for an intracranial vascular opening and sealing device provided by the present invention has a simple structure, a scientific and reasonable design, and is easy to use. It can accurately drive the positioning guide wire to pop out to the femoral artery opening point to ensure the precise positioning of the sealing material, and then quickly drive the positioning guide wire and the delivery tube to withdraw and release the sealing material, which greatly enhances the operation convenience and use stability of the intracranial vascular opening and sealing device.

[0040] The present invention includes a first driving mechanism connected to the positioning guide wire 1 for driving the positioning guide wire 1 to pop out to the blocking point, and a second driving mechanism connected to the first driving mechanism for driving the positioning guide wire 1 and the delivery tube 2 to withdraw and release the blocking material; the first driving mechanism includes a pushing head 4 arranged outside the shell 3, a pushing rod 5 arranged inside the shell 3 and connected to the pushing head 4, a first transmission plate 6 connected to the pushing rod 5, a fixing plate 7 arranged inside the shell 3, and a second transmission plate 8 arranged on the fixing plate 7 and connected to the first transmission plate 6, the second transmission plate 8 is fixedly connected to the positioning guide wire 1, and the second driving mechanism includes a blocking release button 9 arranged outside the shell 3, a fixing block 11 arranged inside the shell 3 and connected to the delivery tube 2 and the fixing plate 7 respectively, and a fan gear 10 respectively connected to the blocking release button 9 and the fixing plate 7.

[0041] The first driving mechanism includes a push head 4, a push rod 5, a first transmission plate 6, a fixed plate 7 and a second transmission plate 8. The second transmission plate 8 is fixedly connected to the positioning guide wire 1. By pressing the push head 4 outside the housing 3, the push rod 5, the first transmission plate 6 and the second transmission plate 8 are pushed to move, so that the positioning guide wire 1 arranged on the second transmission plate 8 is extended from the delivery tube 2 and extends into the inner wall of the blood vessel at the femoral artery opening point, and then the blocking device and the arterial sheath are manually controlled to be withdrawn as a whole, so that the annular head of the positioning guide wire 1 hooks the inner wall of the blood vessel to achieve accurate positioning of the blocking. The second driving mechanism includes a blocking release button 9, a fixed block 11 and a sector gear 10. The fixed block 11 is fixedly connected to the delivery tube 2. By pressing the blocking release button 9, the sector gear 10 is driven to move the fixed plate 7, thereby withdrawing the delivery tube 2 and the positioning guide wire 1 connected to the fixed plate 7, and exposing the blocking material at the inner end of the delivery tube 2 above the blood vessel incision point and gradually sinking below, so as to absorb blood and expand to achieve blood vessel blocking.

[0042] The structures and connection modes of the first driving mechanism of the present invention are as follows: the fixed plate 7 is a channel steel structure, the side wall of the fixed plate 7 is provided with a mounting groove 71, the second transmission plate 8 is movably arranged in the mounting groove 71, a rotating shaft 72 is arranged between the top wall and the bottom wall of the fixed plate 7, and a rotating gear 73 is arranged on the rotating shaft 72. A first connecting plate 61 is vertically arranged on the first transmission plate 6, a first rack 62 adapted to the rotating gear 73 is arranged on the first connecting plate 61, a second rack 81 adapted to the rotating gear 73 is arranged on the second transmission plate 8, and the rotating gear 73 is meshed with the first rack 62 and the second rack 81 respectively. Through the push head 4, the push rod 5 and the first transmission plate 6, the first rack 62 on the first connecting plate 61 drives the rotating gear 73 to rotate, and the rotating gear 73 drives the second transmission plate 8 to move. The linear transmission can be converted into a rotary transmission through the first rack 62 and the rotating gear 73, and then the rotary transmission is converted into a reverse linear transmission through the rotating gear 73 and the second rack 81, so that the internal space of the housing 3 can be optimally utilized, and the blocking device can be small in size, easy to carry, and labor-saving to operate. The first driving mechanism only drives the positioning guide wire 1, and the second transmission plate 8 moves on the side wall of the fixed plate 7 through the mounting groove 71, without driving the fixed plate 7 to move synchronously, so that the head of the positioning guide wire 1 can be extended from the delivery tube 2 to the inner wall of the blood vessel at the opening point of the femoral artery. Since the positioning guide wire 1 is made of nickel-titanium alloy with shape memory, it immediately returns to a ring shape after being extended, and then the blocking device and the arterial sheath are controlled to be withdrawn as a whole, so that the ring head of the positioning guide wire 1 hooks the inner wall of the blood vessel to locate the position of the blockage in the blood vessel.

[0043] The structures and connection modes of the second driving mechanism of the present invention are as follows: the sector gear 10 includes a gear sector 101, and a rotating shaft 102 provided on the gear sector 101 and hingedly connected to the blocking release button 9, the fixing plate 7 is provided with a third rack 74 adapted to the gear sector 101, the gear sector 101 is meshed with the third rack 74, the gear sector 101 is provided with an arc-shaped protrusion 103, the housing 3 is provided with a guide arc groove 31 adapted to the arc-shaped protrusion 103, and the arc-shaped protrusion 103 is installed in the guide arc groove 31. The blocking release button 9 includes a button panel 91, a rotating member 92 provided on the button panel 91, and a fixing member 93 provided on the rotating member 92, the rotating member 92 is provided with a receiving groove 94 adapted to the rotating shaft 102, the rotating shaft 102 is hingedly connected to the button panel 91, the button panel 91 is provided outside the housing 3, and the fixing member 93 is hinged inside the housing 3. Pressing the button panel 91 causes the rotating shaft 102 hingedly connected to the button panel 91 to drive the sector gear 10 to rotate, thereby causing the gear teeth on the sector gear 10 to mesh with the third rack 74 on the fixed plate 7, driving the fixed plate 7 to move backward, and finally driving the positioning guide wire 1 disposed on the fixed plate 7, and the delivery tube 2 connected to the fixed block 11 through the fixed plate 7 to synchronously withdraw, so that the blocking material in the delivery tube 2 is exposed above the vascular incision point and gradually disappears below. Before the blocking release button 9 is pressed, the rotating shaft 102 of the sector gear 10 is disposed in the storage groove 94, so that the occupied area of ​​the sector gear 10 is smaller. When the blocking release button 9 is pressed, the sector gear 10 rotates and causes its gear sector 101 to rotate and mesh with the third rack 74, so that the fixed plate 7 moves. The arc-shaped protrusion 103 on the gear sector 101 is movably installed in the guide arc groove 31, and is used for guiding the movement of the sector gear 10, so that the gear sector 101 and the third rack 74 are perfectly meshed without deviation.

[0044] The push rod 5 of the first driving mechanism of the present invention is provided with a guide and limiting structure. A guide groove 32 is provided in the housing 3, and the front section of the push rod 5 is provided in the guide groove 32. The guide groove 32 can ensure that the push rod 5 does not deviate when moving. A limiting column 33 is provided in the housing 3, and a limiting block 51 is provided in the middle section of the push rod 5, which is unidirectionally limited by the limiting column 33. One side of the limiting block 51 is a right-angle side, and the other two sides are arc sides. A first fixed column 34 is provided in the housing 3, and a protrusion 52 is provided in the middle section of the push rod 5. A second fixed column 53 is provided on the protrusion 52. A limiting spring 35 for limiting the push rod 5 is provided between the first fixed column 34 and the second fixed column 53. The two ends of the limiting spring 35 are respectively fixed on the first fixed column 34 and the second fixed column 53. The limiting spring 35 limits the movement displacement of the push rod 5 and the extension length of the positioning guide wire 1. When the push rod 5 is pushed and moved, the arc-shaped edge of the limit block 51 can pass through the limit column 33 under the action of pressure. At this time, the limit spring 35 is stretched. In order to prevent the push rod 5 from moving back under the elastic action of the limit spring 35, one side of the limit block 51 is set as a right-angle side, which can effectively limit the push rod 5 from moving back.

[0045] The first transmission plate 6 of the first driving mechanism of the present invention is provided with a guiding and limiting structure. A first mounting groove 36 is provided in the housing 3, and the first transmission plate 6 is movably arranged in the first mounting groove 36. Since the first transmission plate 6 can be moved by the push rod 5, the first mounting groove 36 can play a role in guiding the movement of the first transmission plate 6. A first limiting strip 63 is provided on the first transmission plate 6, and a first limiting block 64 and a second limiting block 65 are provided on the first limiting strip 63. The first limiting block 64 is located at the end of the first limiting strip 63, and the second limiting block 65 is an arc-shaped protrusion. A buffer block 37 for slowing down the movement of the second limiting block 65 is provided on the first mounting groove 36. The second limiting block 65 and the buffer block 37 can prevent the positioning guide wire 1 from moving suddenly and slow down the insertion speed of the positioning guide wire 1. The first limiting block 64 limits the movement displacement of the first transmission plate 6 and the extension length of the positioning guide wire 1.

[0046] The second transmission plate 8 of the first driving mechanism of the present invention is provided with two sets 82, and the positioning guide wire 1 is passed through the two sets 82. The sets 82 are used to connect the positioning guide wire 1 with the second transmission plate 8. A movable sleeve 83 is provided on the proximal set 82, and the positioning guide wire 1 is fixed in the movable sleeve 83. The movable sleeve 83 is provided with a limiting sleeve 84 for limiting the movable sleeve 83. The limiting sleeve 84 is located between the two sets 82, and the outer diameter of the limiting sleeve 84 is larger than the outer diameter of the movable sleeve 83. The positioning guide wire 1 and the movable sleeve 83 can move on the sets 82, but are limited by the limiting sleeve 84, so that the positioning guide wire 1 can move with the second transmission plate 8.

[0047] The delivery tube 2 of the present invention is connected to the fixed plate 7 through the fixed block 11, and can be withdrawn by the movement of the fixed plate 7. The positioning guide wire 1 installed on the second transmission plate 8 passes through the fixed block 11 and extends into the delivery tube 2. The connection between the fixed block 11 and the fixed plate 7 is as follows: the fixed block 11 is provided with a fixed protrusion 12, and the fixed plate 7 is provided with a fixed groove 75 adapted to the fixed protrusion 12, and the fixed protrusion 12 is embedded in the fixed groove 75.

[0048] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solutions of the present invention, rather than limiting them, and certainly not limiting the patent scope of the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. In other words, any changes or modifications made to the main design concept and spirit of the present invention that have no substantive significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention. In addition, the direct or indirect application of the technical solutions of the present invention in other related technical fields is also included in the patent protection scope of the present invention.

Claims

1. A driving mechanism for an intracranial vascular opening and sealing device, characterized in that: The invention comprises a first driving mechanism connected to a positioning guide wire (1) and used for driving the positioning guide wire (1) to pop out to a blocking point, and a second driving mechanism connected to the first driving mechanism and used for driving the positioning guide wire (1) and a delivery tube (2) to withdraw and release the blocking material; the first driving mechanism comprises a pushing head (4) arranged outside a housing (3), a pushing rod (5) arranged inside the housing (3) and connected to the pushing head (4), a first transmission plate (6) connected to the pushing rod (5), a fixing plate (7) arranged inside the housing (3), and a second driving plate (6) arranged on the fixing plate (7) and connected to the first transmission plate (6). The second transmission plate (8) is fixedly connected to the positioning guide wire (1); the second driving mechanism comprises a blocking release button (9) arranged outside the housing (3), a fixing block (11) arranged inside the housing (3) and connected to the delivery tube (2) and the fixing plate (7), and a sector gear (10) connected to the blocking release button (9) and the fixing plate (7), respectively; a first connecting plate (61) is vertically arranged on the first transmission plate (6), the first connecting plate (61) is provided with a first rack (62) matched with the rotating gear (73), and the second transmission plate (8) is provided with a first rack (62) matched with the rotating gear (73). The first rack (62) and the second rack (81) are matched with each other, and the rotating gear (73) is respectively meshed with the first rack (62) and the second rack (81); the sector gear (10) includes a gear sector (101) and a first rotating shaft (102) which is arranged on the gear sector (101) and is hingedly connected to the blocking release button (9); the fixing plate (7) is provided with a third rack (74) which is matched with the gear sector (101); the gear sector (101) is meshed with the third rack (74); the gear sector (101) is provided with an arc-shaped protrusion (103); and the housing (3) is provided with a first rotating shaft (102) which is hingedly connected to the blocking release button (9). (103) is adapted to the guide arc groove (31), and the arc-shaped protrusion (103) is installed in the guide arc groove (31); the second transmission plate (8) is provided with two sets of components (82), the positioning guide wire (1) is passed through the two sets of components (82), the proximal set of components (82) is provided with a movable sleeve (83), the positioning guide wire (1) is fixed in the movable sleeve (83), the movable sleeve (83) is provided with a limiting sleeve (84) for limiting the movable sleeve (83), the limiting sleeve (84) is located between the two sets of components (82), and the outer diameter of the limiting sleeve (84) is larger than the outer diameter of the movable sleeve (83).

2. The driving mechanism for an intracranial vascular opening and sealing device according to claim 1, characterized in that: The fixing plate (7) is a channel steel structure. A mounting groove (71) is provided on a side wall of the fixing plate (7). The second transmission plate (8) is movably arranged in the mounting groove (71). A second rotating shaft (72) is provided between the top wall and the bottom wall of the fixing plate (7). A rotating gear (73) is provided on the second rotating shaft (72).

3. The driving mechanism for an intracranial vascular opening and sealing device according to claim 1, characterized in that: The blocking release button (9) comprises a button panel (91), a rotating member (92) arranged on the button panel (91), and a fixing member (93) arranged on the rotating member (92); a receiving groove (94) adapted to a first rotating shaft (102) is provided on the rotating member (92); the first rotating shaft (102) is hingedly connected to the button panel (91); the button panel (91) is arranged outside the housing (3); and the fixing member (93) is hingedly connected to the inside of the housing (3).

4. The driving mechanism for an intracranial vascular opening and sealing device according to claim 1, characterized in that: A guide groove (32) and a limiting column (33) are provided in the housing (3); a front section of the push rod (5) is arranged in the guide groove (32); a limiting block (51) is provided in the middle section of the push rod (5) and is unidirectionally limited by the limiting column (33); one side of the limiting block (51) is a right-angled side, and the other two sides are arc-shaped sides.

5. The driving mechanism for an intracranial vascular opening and sealing device according to claim 1, characterized in that: A first fixing column (34) is provided in the housing (3), a protrusion (52) is provided in the middle section of the push rod (5), a second fixing column (53) is provided on the protrusion (52), a limit spring (35) for limiting the push rod (5) is provided between the first fixing column (34) and the second fixing column (53), and two ends of the limit spring (35) are respectively fixed to the first fixing column (34) and the second fixing column (53).

6. The driving mechanism for an intracranial vascular opening and sealing device according to claim 1, characterized in that: A first mounting groove (36) is provided in the housing (3), a first transmission plate (6) is movably arranged in the first mounting groove (36), a first limiting strip (63) is provided on the first transmission plate (6), a first limiting block (64) and a second limiting block (65) are provided on the first limiting strip (63), the first limiting block (64) is located at the end of the first limiting strip (63), the second limiting block (65) is an arc-shaped protrusion, and a buffer block (37) for slowing down the movement of the second limiting block (65) is provided on the first mounting groove (36).

7. The driving mechanism for an intracranial vascular opening and sealing device according to claim 1, characterized in that: The positioning guide wire (1) passes through the fixing block (11) and extends into the conveying tube (2). The fixing block (11) is provided with a fixing protrusion (12). The fixing plate (7) is provided with a fixing groove (75) matched with the fixing protrusion (12). The fixing protrusion (12) is embedded in the fixing groove (75).

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