CN111481326B - Intravascular adjustable interventional stent and method of using the same - Google Patents

Abstract

The invention discloses an intravascular adjustable interventional stent, which comprises an adjustable stent, a guide plate, an adjusting wire, an adjusting bolt, a fixed adjusting cylinder and a cylinder adjusting assembly, wherein the fixed adjusting cylinder is arranged on the adjustable stent; one end of the adjustable support is fixed with a sealing protecting ring, and the other end of the adjustable support is fixed with a fixed adjusting cylinder. According to the invention, the adjusting bolt rotates to drive the adjusting wire to wind or pay off, so that the adjustable bracket can shrink or expand due to the winding or paying off of the adjusting wire, and the adjustable bracket can shrink rapidly due to the fact that the V-shaped grooves convenient to shrink and adjust are uniformly formed in the inner wall of the upper end of the adjusting slot hole of the adjustable bracket, and unidirectional adjustment of the intervention bracket is realized; according to the invention, the adjusting bolt is used for driving the adjusting rope to shrink or pay off, so that the whole fixed adjusting cylinder is shrunk or expanded, and the fixed adjusting cylinder and the adjustable bracket can be adjusted together, thereby realizing the smoothness and smoothness of the whole interventional bracket.

Description

Intravascular adjustable interventional stent and method of using the same

Technical field

The invention belongs to the technical field of medical devices, and specifically relates to an intravascular adjustable interventional stent and a method of using the same.

Background technique

A blood vessel is a series of tubes through which blood flows. In addition to the cornea, hair, nails, dentin and epithelium, blood vessels are found throughout the human body. Blood vessels are divided into three types: arteries, veins and capillaries according to their different structures and functions.

Blood vessels are the channels through which organisms transport blood. They can be divided into arteries, veins and capillaries according to the direction of transport. Arteries carry blood from the heart to body tissues, veins carry blood from tissues to the heart, and capillaries connect arteries and veins and are the main place for material exchange between blood and tissues. Various organisms have different types of blood vessels. Open-circulating organisms, such as insects, have only arteries. Blood flows out of the arteries and directly contacts body tissues, and is then recycled through openings in the heart. Closed circulation organisms, such as mammals, birds, reptiles, and fish, connect arteries to capillaries and then veins, and finally return to the heart.

However, the existing endovascular interventional stents are inconvenient to adjust when used, and the adjustment ability is limited. At the same time, the interventional stents are limited in size and cannot be extended, which causes inconvenience in use and affects treatment.

Contents of the invention

The object of the present invention is to provide an intravascular adjustable interventional stent to solve the problems raised in the above background art. The invention provides an intravascular adjustable interventional stent, which has the characteristics of simple structure, portable adjustment, and good extendability.

Another object of the present invention is to provide a method of using an intravascular adjustable interventional stent.

In order to achieve the above object, the present invention provides the following technical solution: an intravascular adjustable interventional stent, including an adjustable stent, a guide plate, an adjustment wire, an adjustment plug, a fixed adjustment barrel and a barrel adjustment assembly; wherein, the adjustable stent One end is fixed with a sealing retaining ring, the other end of the adjustable bracket is fixed with a fixed adjustment barrel, the adjustable bracket is provided with an inner slot in the middle, and the adjustable bracket is equipped with an adjustment slot in the middle of the inner wall, so A guide plate is evenly arranged in the middle of the adjustment slot. A connected through hole in the adjustment slot is provided inside the fixed adjustment barrel at a position corresponding to the adjustment slot. The surface of the fixed adjustment barrel is provided on one side away from the adjustable bracket. There is an adjustment bolt, an adjustment line is connected between the inside of the adjustable bracket and the adjustment bolt, a barrel adjustment component is provided on the surface of the fixed adjustment barrel close to the side of the adjustable bracket, and a barrel adjustment assembly is provided inside the fixed adjustment barrel. There is an inner through hole connected with the inner slot hole, and the sides of the fixed adjustment barrel away from the adjustable bracket are respectively provided with fixed chucks and fixed slot holes.

Further in the present invention, a limiting guide hole is provided inside the guide plate for adjusting the movement limit of the wire.

Further in the present invention, the barrel adjustment assembly includes an adjustment rope, a fixing nut, an adjustment bolt, a fixing block and a rope slot hole, wherein the fixed adjustment barrel is located on the outer wall of the through hole in the adjustment slot and is provided with a rope slot. hole, a fixing nut is provided in the groove at the upper end of the fixed adjusting barrel, an adjusting bolt is fixed at the upper end of the fixing nut, and a fixing block is provided at one end of the rope slot hole close to the fixing nut, and the fixing block An adjusting rope is connected to the adjusting bolt.

Further in the present invention, the inner wall of the adjustable bracket located at the upper end of the adjustment slot is evenly provided with V-shaped grooves that facilitate contraction adjustment.

In a further aspect of the present invention, a sealing block is provided at the outer end of the fixed adjustment cylinder through the through hole in the adjustment groove.

Further in the present invention, the fixed adjustment cylinders are connected and fixed by mutual engagement with fixed chucks and fixed slot holes.

Further in the present invention, the adjustment wires, adjustment bolts, fixing chucks and fixing slots are used in combination and the number is at least four groups.

Further in the present invention, the method of using the intravascular adjustable interventional stent mainly includes the following steps:

The medical staff takes out a single access stent according to the needs of use, and uses medical tweezers to rotate the adjustment bolt, so that the adjustment bolt rotates to drive the adjustment wire to rewind or unwind. In this way, the adjustable stent will shrink due to the rewinding or unwinding of the adjustment wire. Or expand, because the inner wall of the adjustable bracket located at the upper end of the adjustment slot is evenly provided with V-shaped grooves that facilitate contraction adjustment, so that the adjustable bracket can quickly shrink and realize one-way adjustment of the interventional bracket, and medical staff can adjust the adjusting bolt at the same time , so that the adjusting bolt drives the adjusting rope to shrink or unwind, causing the entire fixed adjusting barrel to shrink or expand, so that the fixed adjusting barrel can be adjusted together with the adjustable bracket, so that the overall intervention bracket is smooth and smooth, and at the same time, on the side of the fixed adjusting barrel The sides are respectively equipped with fixed clips and fixed slots. The two intervention brackets are connected and fixed through the fixed clips and fixed slots. In this way, when the length of one bracket is not enough, the two brackets can be connected for use, making it easy to disassemble and assemble.

Further in the present invention, in the method of using an intravascular adjustable interventional stent, the inside of the guide plate is provided with a limiting guide hole for limiting the movement of the adjustment wire; the barrel adjustment assembly includes an adjustment rope, Fixing nut, adjusting bolt, fixing block and rope slot hole, wherein the fixed adjustment barrel is provided with a rope slot hole on the outer wall of the through hole in the adjustment slot, and a fixing nut is provided in the upper end groove of the fixed adjustment barrel , an adjusting bolt is fixed on the upper end of the fixed nut, a fixed block is provided at one end of the rope slot hole close to the fixed nut, and an adjusting rope is connected between the fixed block and the adjusting bolt; the adjustable bracket is located The inner wall of the upper end of the adjustment slot is evenly provided with V-shaped grooves that facilitate shrinkage adjustment; the through hole in the adjustment slot is located at the outer end of the fixed adjustment barrel, and a sealing block is provided; the fixed adjustment barrel is connected by a fixed chuck and a The fixing slots are connected and fixed by engaging with each other; the adjusting wires, adjusting bolts, fixing clips and fixing slots are used in conjunction and the number is at least four groups.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, the adjustment bolt is rotated to drive the adjustment wire to be rolled up or paid out, so that the adjustable bracket will shrink or expand due to the winding up or paying out of the adjusting wire, because the adjustable bracket is located on the inner wall of the upper end of the adjusting slot. V-shaped grooves are evenly arranged to facilitate shrinkage adjustment, allowing the adjustable bracket to quickly shrink and realize one-way adjustment of the interventional bracket;

2. The present invention drives the adjustment rope to shrink or unwind by adjusting the adjustment bolt, so that the entire fixed adjustment cylinder shrinks or expands, so that the fixed adjustment cylinder can be adjusted together with the adjustable bracket, thereby achieving the overall smoothness of the interventional bracket and easy use;

3. In the present invention, fixed clamps and fixed slots are respectively installed on the sides of the fixed adjustment barrel. The two intervention brackets are connected and fixed by matching the fixed clamps and the fixed slot holes, so that they can be connected when the length of one bracket is not enough. Two brackets are used, which are easy to disassemble and assemble to meet the needs of different lengths.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic structural diagram of the barrel adjustment assembly of the present invention;

Figure 3 is an enlarged structural schematic diagram of A in Figure 1 of the present invention;

Figure 4 is an enlarged structural schematic diagram of B in Figure 1 of the present invention;

In the picture: 1. Adjustable bracket; 2. Adjustment slot; 3. Inner slot; 4. Seal retaining ring; 5. Guide plate; 51. Limiting guide hole; 6. Adjustment line; 7. Inner through hole; 8 , Adjusting bolt; 9. Fixed chuck; 10. Fixed slot hole; 11. Fixed adjusting barrel; 12. Barrel adjusting component; 121. Adjusting rope; 122. Fixed nut; 123. Adjusting bolt; 124. Fixed clamp block; 125 , rope slot hole; 13. Through hole in the adjustment slot.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Referring to Figures 1-4, the present invention provides the following technical solution: an intravascular adjustable interventional stent, including an adjustable stent 1, a guide plate 5, an adjustment wire 6, an adjustment plug 8, a fixed adjustment barrel 11 and a barrel adjustment assembly 12; Among them, one end of the adjustable bracket 1 is fixed with a sealing ring 4, and the other end of the adjustable bracket 1 is fixed with a fixed adjustment barrel 11. An inner slot 3 is provided in the middle of the adjustable bracket 1, and the middle of the inner wall of the adjustable bracket 1 is An adjustment slot 2 is provided, and a guide plate 5 is evenly arranged in the middle of the adjustment slot 2. The inside of the fixed adjustment barrel 11 is provided with a through hole 13 in the adjustment slot corresponding to the position corresponding to the adjustment slot 2. The surface of the fixed adjustment barrel 11 is The side away from the adjustable bracket 1 is provided with an adjusting bolt 8. An adjustment wire 6 is connected between the inside of the adjustable bracket 1 and the adjusting bolt 8. The surface of the fixed adjusting cylinder 11 is provided with a cylinder adjustment on the side close to the adjustable bracket 1. Assembly 12, the fixed adjustment barrel 11 is provided with an inner through hole 7 connected with the inner slot hole 3 in the middle, and the sides of the fixed adjustment barrel 11 away from the adjustable bracket 1 are respectively provided with fixed chucks 9 and fixed slot holes 10.

Further, a limiting guide hole 51 is provided inside the guide plate 5 for limiting the movement of the adjustment wire 6 .

Further, the barrel adjustment assembly 12 includes an adjustment rope 121, a fixing nut 122, an adjustment bolt 123, a fixing block 124 and a rope slot hole 125. The fixed adjustment barrel 11 is located in the adjustment slot and is provided with a rope slot on the outer wall of the through hole 13. hole 125, a fixing nut 122 is provided in the upper groove of the fixed adjusting barrel 11, an adjusting bolt 123 is fixed at the upper end of the fixing nut 122, and a fixing block 124 is provided at one end of the rope slot hole 125 close to the fixing nut 122, and the fixing block 124 An adjusting rope 121 is connected between 124 and the adjusting bolt 123.

Furthermore, the inner wall of the adjustable bracket 1 located at the upper end of the adjustment slot 2 is evenly provided with V-shaped grooves that facilitate contraction adjustment.

Furthermore, the through hole 13 in the adjustment groove is provided with a sealing block at the outer end of the fixed adjustment cylinder 11 .

Furthermore, the fixed adjustment cylinders 11 are connected and fixed by the fixed chuck 9 and the fixed slot hole 10 engaging with each other.

Further, the adjusting wire 6, the adjusting bolt 8, the fixing chuck 9 and the fixing slot 10 are used in a matching manner and the number is at least four sets.

Furthermore, the method of using the intravascular adjustable interventional stent according to the present invention mainly includes the following steps:

The medical staff takes out a single access stent according to the usage requirements, and uses medical tweezers to rotate the adjusting bolt 8, so that the adjusting bolt 8 rotates and drives the adjustment wire 6 to rewind or unwind. In this way, the adjustable stent 1 will be retracted or unwound due to the rewinding or unwinding of the adjustment wire 6. The inner wall of the adjustable bracket 1 located at the upper end of the adjustment slot hole 2 is evenly provided with V-shaped grooves for convenient contraction and adjustment, so that the adjustable bracket 1 can quickly shrink and realize one-way adjustment of the interventional bracket. , the medical staff can adjust the adjusting bolt 123 at the same time, so that the adjusting bolt 123 drives the adjusting rope 121 to shrink or unwind, so that the entire fixed adjusting cylinder 11 contracts or expands, so that the fixed adjusting cylinder 11 can be adjusted together with the adjustable bracket 1, thereby The interventional bracket is smooth and smooth as a whole. At the same time, a fixing chuck 9 and a fixing slot 10 are respectively installed on the sides of the fixed adjustment barrel 11. The two interventional brackets are connected and fixed by matching the fixing chuck 9 and the fixing slot 10, so that When one bracket is not long enough, two brackets can be connected for use, which is easy to disassemble and assemble.

Further, the inside of the guide plate 5 is provided with a limit guide hole 51 for limiting the movement of the adjustment wire 6; the barrel adjustment assembly 12 includes an adjustment rope 121, a fixing nut 122, an adjusting bolt 123, a fixing block 124 and a rope slot hole 125. Among them, the fixed adjusting cylinder 11 is provided with a rope slot 125 on the outer wall of the through hole 13 in the adjusting groove. A fixing nut 122 is provided in the upper end groove of the fixed adjusting cylinder 11. An adjusting bolt 123 is fixed on the upper end of the fixing nut 122. The rope A fixed block 124 is provided inside the slot 125 at one end close to the fixing nut 122, and an adjusting rope 121 is connected between the fixed block 124 and the adjusting bolt 123; the adjustable bracket 1 is evenly arranged on the inner wall of the upper end of the adjusting slot 2 for convenience. The V-shaped groove for shrinkage adjustment; the through hole 13 in the adjustment groove is located at the outer end of the fixed adjustment barrel 11, and a sealing block is provided; the fixed adjustment barrels 11 are connected and fixed by mutual engagement with the fixed chuck 9 and the fixed slot hole 10; adjustment The wire 6, the adjusting bolt 8, the fixing chuck 9 and the fixing slot 10 are used together and the number is at least four sets.

Example 1

When the present invention is used, medical staff take out a single access stent according to the usage requirements, and use medical tweezers to rotate the adjusting bolt 8, so that the adjusting bolt 8 rotates to drive the adjusting wire 6 to wind up or unwind, so that the adjustable stent 1 will be moved due to the adjustment wire. 6 is retracted or unwound to shrink or expand. Since the inner wall of the adjustable bracket 1 located at the upper end of the adjustment slot 2 is evenly provided with V-shaped grooves that facilitate contraction adjustment, the adjustable bracket 1 can quickly shrink and realize intervention. For one-way adjustment of the bracket, the medical staff can adjust the adjusting bolt 123 at the same time, so that the adjusting bolt 123 drives the adjusting rope 121 to shrink or unwind, causing the entire fixed adjusting cylinder 11 to contract or expand, so that the fixed adjusting cylinder 11 can interact with the adjustable bracket. 1 are adjusted together to ensure that the interventional bracket is smooth and smooth as a whole. At the same time, a fixing chuck 9 and a fixing slot 10 are respectively installed on the sides of the fixed adjustment barrel 11. The two interventional stents are matched with each other through the fixing chuck 9 and the fixing slot 10. The two brackets can be connected and fixed when the length of one bracket is not enough. It is easy to disassemble and assemble, has a simple structure and is portable to use.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (5)

1. An intravascular adjustable interventional stent, characterized by: including an adjustable stent (1), a guide plate (5), an adjustment wire (6), an adjustment plug (8), a fixed adjustment barrel (11) and a barrel adjustment assembly (12); wherein, one end of the adjustable bracket (1) is fixed with a sealing ring (4), and the other end of the adjustable bracket (1) is fixed with a fixed adjustment barrel (11). An inner slot hole (3) is provided in the middle of the interior of (1), an adjustment slot hole (2) is provided in the middle of the inner wall of the adjustable bracket (1), and the adjustable bracket (1) is located in the adjustment slot hole (2) The inner wall of the upper end is evenly provided with V-shaped grooves for convenient shrinkage adjustment, a guide plate (5) is evenly provided in the middle of the adjustment slot (2), and an adjustment line (6) is provided inside the guide plate (5) for movement There is a limit guide hole (51) for limiting the position. A through hole (13) in the adjustment slot that communicates with the adjustment slot hole (2) is provided inside the fixed adjustment barrel (11). The fixed adjustment barrel (11) The surface of 11) is provided with an adjusting bolt (8) on one side away from the adjustable bracket (1), and an adjusting line (6) is connected between the inside of the adjustable bracket (1) and the adjusting pin (8). A barrel adjustment assembly (12) is provided on one side of the surface of the fixed adjustment barrel (11) close to the adjustable bracket (1), and a barrel adjustment assembly (12) is provided in the middle of the fixed adjustment barrel (11) that communicates with the inner slot hole (3). The inner through hole (7), the fixed adjustment barrel (11) is provided with a fixed chuck (9) and a fixed slot (10) on the side away from the adjustable bracket (1), and the barrel adjustment assembly (12) It includes an adjusting rope (121), a fixing nut (122), an adjusting bolt (123), a fixing block (124) and a rope slot (125), in which the fixed adjusting barrel (11) is located in the through hole (125) in the adjusting slot ( 13) is provided with a rope slot (125) on the outer wall, a fixing nut (122) is provided in the upper groove of the fixed adjusting barrel (11), and an adjusting bolt (123) is fixed on the upper end of the fixing nut (122) ), a fixing block (124) is provided at one end of the rope slot hole (125) close to the fixing nut (122), and an adjusting rope (121) is connected between the fixing block (124) and the adjusting bolt (123). ). 2. An intravascular adjustable interventional stent according to claim 1, characterized in that: the through hole (13) in the adjustment groove is provided with a sealing block at the outer end of the fixed adjustment barrel (11). 3. An intravascular adjustable interventional stent according to claim 1, characterized in that: the fixed adjustment barrels (11) are connected to each other through fixed chucks (9) and fixed slots (10). fixed. 4. An intravascular adjustable interventional stent according to claim 1, characterized in that: the adjustment wire (6), the adjustment plug (8), the fixing chuck (9) and the fixing slot (10) are matched Use and quantity is at least four sets. 5. An intravascular adjustable interventional stent according to any one of claims 1-4, its use method mainly includes the following steps: The medical staff takes out a single access stent according to the usage requirements, and uses medical tweezers to rotate the adjustment bolt (8), so that the adjustment bolt (8) rotates to drive the adjustment wire (6) to wind or unwind, so that the adjustable stent (1) will The adjustment wire (6) shrinks or expands due to the winding or unwinding of the wire. Since the inner wall of the adjustable bracket (1) located at the upper end of the adjusting slot (2) is evenly provided with V-shaped grooves that facilitate contraction adjustment, the adjustable bracket (1) can be adjusted The stent (1) can quickly shrink to achieve one-way adjustment of the interventional stent. The medical staff can adjust the adjustment bolt (123) at the same time, so that the adjustment bolt (123) drives the adjustment rope (121) to shrink or unwind, so that the entire fixed adjustment cylinder (11) Contract or expand, so that the fixed adjustment barrel (11) can be adjusted together with the adjustable bracket (1), so as to achieve the overall smoothness of the interventional stent. At the same time, fixed adjustment barrels (11) are installed on the sides. The clamp (9) and the fixing slot (10), the two intervention brackets are connected and fixed through the fixing clamp (9) and the fixing slot (10), so that the two brackets can be connected when the length of one bracket is not enough Easy to use and easy to assemble and disassemble.