CN111481326B - Intravascular adjustable interventional stent and application method thereof - Google Patents
Intravascular adjustable interventional stent and application method thereof Download PDFInfo
- Publication number
- CN111481326B CN111481326B CN201910076959.6A CN201910076959A CN111481326B CN 111481326 B CN111481326 B CN 111481326B CN 201910076959 A CN201910076959 A CN 201910076959A CN 111481326 B CN111481326 B CN 111481326B
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- adjusting
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- adjustable
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- cylinder
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2002/823—Stents, different from stent-grafts, adapted to cover an aneurysm
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
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to an intravascular adjustable interventional stent and a use method thereof.
Background
A blood vessel refers to a series of ducts through which blood flows. The blood vessels extend throughout the body except for the cornea, hair, nails, dentin, epithelium, etc. Blood vessels are classified into three kinds of arteries, veins and capillaries according to different constructional functions.
Blood vessels are conduits for transporting blood biologically and can be divided into arteries, veins and capillaries depending on the direction of transport. Arteries carry blood from the heart to body tissue, veins carry blood from tissue to heart, and microvasculature connects arteries to veins, which are the primary sites for mass exchange between blood and tissue. The vascular patterns possessed by various organisms vary. Open-loop organisms, such as insects, have only arteries. Blood flows from the arteries directly into contact with body tissue and is recovered through openings in the heart. The closed circulation organisms such as mammals, birds, reptiles and fish are connected with capillaries through arteries and then connected with veins, and finally return to the heart.
However, the existing intravascular interventional stent has inconvenient adjustment of the access stent and limited adjustment capacity when in use, and the interventional stent cannot extend due to limited size, so that the use is inconvenient and the treatment is affected.
Disclosure of Invention
The invention aims to provide an intravascular adjustable interventional stent, which solves the problems in the background art. The intravascular adjustable interventional stent provided by the invention has the characteristics of simple structure, portability in adjustment and good extensibility.
Another object of the present invention is to provide a method of using an endovascular adjustable interventional stent.
In order to achieve the above purpose, the present invention provides the following technical solutions: an intravascular adjustable interventional stent comprises an adjustable stent, a guide plate, an adjusting wire, an adjusting bolt, a fixed adjusting cylinder and a cylinder adjusting component; the adjustable support comprises an adjustable support, a sealing guard ring, a fixed adjusting cylinder, an inner slot hole, an adjusting slot hole, a guide plate, an adjusting groove inner through hole, an adjusting bolt and a cylinder adjusting component, wherein the sealing guard ring is fixed at one end of the adjustable support, the fixed adjusting cylinder is fixed at the other end of the adjustable support, the inner slot hole is arranged in the middle of the inner portion of the adjustable support, the adjusting slot hole is arranged in the middle of the inner wall of the adjustable support, the guide plate is uniformly arranged in the middle of the adjusting slot hole, the adjusting groove inner through hole is communicated with the corresponding position of the inner portion of the fixed adjusting cylinder and the adjusting slot hole, the adjusting bolt is arranged on one side, far away from the adjustable support, of the surface of the fixed adjusting cylinder, an adjusting wire is connected between the inner portion of the adjustable support and the adjusting bolt, the cylinder adjusting component is arranged on one side, close to the adjustable support, of the fixed adjusting cylinder is provided with a fixed clamping head and a fixed slot hole respectively.
In the invention, a limiting guide hole for limiting the movement of the adjusting wire is arranged in the guide plate.
In the invention, the cylinder adjusting component comprises an adjusting rope, a fixing nut, an adjusting bolt, a fixing clamping block and a rope slot hole, wherein the rope slot hole is formed in the outer side wall of the through hole of the fixed adjusting cylinder, the fixing nut is arranged in the groove at the upper end of the fixed adjusting cylinder, the adjusting bolt is fixed at the upper end of the fixing nut, the fixing clamping block is arranged at one end, close to the fixing nut, inside the rope slot hole, and an adjusting rope is connected between the fixing clamping block and the adjusting bolt.
In the invention, the inner wall of the adjustable bracket at the upper end of the adjusting slot hole is uniformly provided with V-shaped grooves which are convenient for shrinkage adjustment.
In the invention, a sealing block is arranged at the outer side end position of the through hole in the regulating groove, which is positioned at the fixed regulating cylinder.
In the invention, the fixed adjusting cylinders are mutually clamped, connected and fixed through the fixed clamping heads and the fixed slotted holes.
In the invention, the adjusting wire, the adjusting bolt, the fixing clamp head and the fixing slot hole are matched for use, and the number of the adjusting wire, the adjusting bolt, the fixing clamp head and the fixing slot hole is at least four.
In the invention, the intravascular adjustable interventional stent mainly comprises the following steps:
the medical personnel takes out single access support according to user demand, rotate the regulation cock through medical tweezers, make the regulation cock rotate and drive the regulation line and carry out rolling or unwrapping wire, adjustable support can shrink or expand owing to the rolling or unwrapping wire of regulation line like this, because adjustable support is located the inner wall of the upper end of regulation slotted hole evenly is provided with the V type groove of convenient shrink regulation, make adjustable support can shrink fast, realize intervene the unidirectional adjustment of support, medical personnel can adjust adjusting bolt simultaneously, adjusting bolt drives regulation rope shrink or unwrapping wire like this, make whole fixed adjustment section of thick bamboo shrink or expand, make like this fixed adjustment section of thick bamboo can adjust together with adjustable support, thereby reach and intervene whole smooth smoothness of support, install fixed chuck and fixed slotted hole respectively at the side of fixed adjustment section of thick bamboo simultaneously, two intervene the support and pass through fixed chuck and the supporting block connection of fixed slotted hole and fix, can switch on two supports and use when a support length is insufficient like this, easy dismounting.
In the method for using the intravascular adjustable interventional stent, a limiting guide hole for limiting the movement of an adjusting wire is formed in the guide plate; the tube adjusting assembly comprises an adjusting rope, a fixing nut, an adjusting bolt, a fixing clamping block and a rope slot hole, wherein the rope slot hole is formed in the outer side wall of a through hole in the adjusting groove of the fixing adjusting tube, the fixing nut is arranged in a groove at the upper end of the fixing adjusting tube, the adjusting bolt is fixed at the upper end of the fixing nut, the fixing clamping block is arranged at one end, close to the fixing nut, inside the rope slot hole, and an adjusting rope is connected between the fixing clamping block and the adjusting bolt; the inner wall of the adjustable bracket, which is positioned at the upper end of the adjusting slotted hole, is uniformly provided with V-shaped grooves which are convenient for shrinkage adjustment; the through hole in the regulating groove is positioned at the outer side end of the fixed regulating cylinder and is provided with a sealing block; the fixed adjusting cylinders are mutually clamped, connected and fixed through the fixed clamping heads and the fixed slotted holes; the adjusting wire, the adjusting bolt, the fixing clamping head and the fixing slot hole are matched for use, and the number of the adjusting wire, the adjusting bolt, the fixing clamping head and the fixing slot hole is at least four.
Compared with the prior art, the invention has the beneficial effects that:
1. 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;
2. 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 smooth and fluent whole intervention bracket and being convenient to use;
3. according to the invention, the fixed clamping head and the fixed slot hole are respectively arranged on the side edge of the fixed adjusting cylinder, and the two intervening brackets are fixedly connected through the matched clamping of the fixed clamping head and the fixed slot hole, so that when the length of one bracket is insufficient, the two brackets can be connected for use, the disassembly and the assembly are convenient, and the use requirements of different lengths are met.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a cartridge conditioning assembly of the present invention;
FIG. 3 is a schematic view of the enlarged A structure of FIG. 1 according to the present invention;
FIG. 4 is an enlarged schematic view of the structure B of FIG. 1 according to the present invention;
in the figure: 1. an adjustable bracket; 2. adjusting the slotted hole; 3. an inner slot; 4. sealing the guard ring; 5. a guide plate; 51. limiting guide holes; 6. an adjustment line; 7. an inner through hole; 8. an adjusting bolt; 9. fixing the clamping head; 10. a fixed slot; 11. fixing an adjusting cylinder; 12. a cartridge adjustment assembly; 121. an adjusting rope; 122. a fixing nut; 123. an adjusting bolt; 124. fixing the clamping block; 125. rope slot holes; 13. and adjusting the through holes in the grooves.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: an intravascular adjustable interventional stent comprises an adjustable stent 1, a guide plate 5, an adjusting wire 6, an adjusting bolt 8, a fixed adjusting cylinder 11 and a cylinder adjusting assembly 12; wherein, the one end of adjustable support 1 is fixed with sealed shroud ring 4, the other end of adjustable support 1 is fixed with fixed regulation section of thick bamboo 11, be provided with inside slot 3 in the middle of the inside of adjustable support 1, be provided with regulation slotted hole 2 in the middle of the inner wall of adjustable support 1, the centre of regulation slotted hole 2 evenly is provided with baffle 5, the inside of fixed regulation section of thick bamboo 11 is provided with the adjustment inslot through-hole 13 that is linked together with the corresponding position of regulation slotted hole 2, the surface of fixed regulation section of thick bamboo 11 is kept away from adjustable support 1 one side and is provided with adjusting bolt 8, be connected with adjusting wire 6 between the inside of adjustable support 1 and the adjusting bolt 8, the surface of fixed regulation section of thick bamboo 11 is provided with a section of thick bamboo adjusting component 12 near one side of adjustable support 1, be provided with the interior through-hole 7 that is linked together with inside slot 3 in the middle of fixed regulation section of thick bamboo 11, the side that fixed regulation section of thick bamboo 11 is kept away from adjustable support 1 is provided with fixed chuck 9 and fixed slotted hole 10 respectively.
Further, a limiting guide hole 51 for limiting the movement of the adjusting wire 6 is arranged in the guide plate 5.
Further, the barrel adjusting assembly 12 comprises an adjusting rope 121, a fixing nut 122, an adjusting bolt 123, a fixing clamping block 124 and a rope groove hole 125, wherein the rope groove hole 125 is formed in the outer side wall of the through hole 13 in the adjusting groove, the fixing nut 122 is arranged in the groove at the upper end of the fixing adjusting barrel 11, the adjusting bolt 123 is fixed at the upper end of the fixing nut 122, the fixing clamping block 124 is arranged at one end, close to the fixing nut 122, of the rope groove hole 125, and the adjusting rope 121 is connected between the fixing clamping block 124 and the adjusting bolt 123.
Further, the inner wall of the adjustable bracket 1 at the upper end of the adjusting slot hole 2 is uniformly provided with a V-shaped groove which is convenient for shrinkage adjustment.
Further, a sealing block is arranged at the outer end position of the adjusting groove inner through hole 13 positioned on the fixed adjusting cylinder 11.
Further, the fixed adjusting cylinders 11 are mutually clamped, connected and fixed through the fixed clamping heads 9 and the fixed slotted holes 10.
Further, the adjusting wire 6, the adjusting bolt 8, the fixing clamping head 9 and the fixing slot 10 are matched for use, and the number of the adjusting wire is at least four.
Furthermore, the application method of the intravascular adjustable interventional stent mainly comprises the following steps of:
medical personnel take out single access support according to user demand, rotatory regulation cock 8 through medical tweezers, make regulation cock 8 rotate drive regulation line 6 and carry out rolling or unwrapping wire, adjustable support 1 can shrink or expand because the rolling or unwrapping wire of regulation line 6 like this, because adjustable support 1 is located the inner wall of the upper end of regulation slotted hole 2 evenly is provided with the V type groove of convenient shrink regulation, make adjustable support 1 can shrink fast, realize intervene the unidirectional regulation of support, medical personnel can adjust adjusting bolt 123 simultaneously, adjusting bolt 123 drives adjusting rope 121 shrink or unwrapping wire like this, make whole fixed adjustment section of thick bamboo 11 shrink or expand, make fixed adjustment section of thick bamboo 11 can adjust together with adjustable support 1 like this, thereby reach and intervene the whole smooth smoothness of support, simultaneously install fixed 9 and fixed slotted hole 10 respectively at the side of fixed adjustment section of thick bamboo 11, two intervene the support and connect fixedly through fixed 9 and fixed slotted hole 10 matched block, can put through two supports and use when a support length is insufficient like this, easy dismounting.
Further, a limiting guide hole 51 for limiting the movement of the adjusting wire 6 is formed in the guide plate 5; the barrel adjusting assembly 12 comprises an adjusting rope 121, a fixing nut 122, an adjusting bolt 123, a fixing clamping block 124 and a rope groove hole 125, wherein the rope groove hole 125 is formed in the outer side wall of the through hole 13 in the adjusting groove of the fixed adjusting barrel 11, the fixing nut 122 is arranged in a groove at the upper end of the fixed adjusting barrel 11, the adjusting bolt 123 is fixed at the upper end of the fixing nut 122, the fixing clamping block 124 is arranged at one end, close to the fixing nut 122, of the inner part of the rope groove hole 125, and the adjusting rope 121 is connected between the fixing clamping block 124 and the adjusting bolt 123; the inner wall of the adjustable bracket 1, which is positioned at the upper end of the adjusting slotted hole 2, is uniformly provided with V-shaped grooves which are convenient for shrinkage adjustment; the outer end of the adjusting tank through hole 13, which is positioned at the fixed adjusting cylinder 11, is provided with a sealing block; the fixed adjusting cylinders 11 are mutually clamped, connected and fixed through the fixed clamping heads 9 and the fixed slotted holes 10; the adjusting wire 6, the adjusting bolt 8, the fixing clamping head 9 and the fixing slot 10 are matched for use, and the number of the adjusting wire is at least four.
Example 1
When the adjustable support is used, a medical staff takes out a single access support according to the use requirement, rotates the adjusting bolt 8 through a medical forceps, and enables the adjusting bolt 8 to rotate to drive the adjusting wire 6 to wind or pay off, so that the adjustable support 1 can shrink or expand due to the winding or paying off of the adjusting wire 6, and because the inner wall of the adjustable support 1, which is positioned at the upper end of the adjusting slot 2, is uniformly provided with the V-shaped groove convenient for shrinkage adjustment, the adjustable support 1 can shrink rapidly, unidirectional adjustment of the intervention support is realized, the medical staff can adjust the adjusting bolt 123 at the same time, the adjusting bolt 123 drives the adjusting rope 121 to shrink or pay off, the whole fixed adjusting cylinder 11 shrinks or expands, the fixed adjusting cylinder 11 can be adjusted together with the adjustable support 1, the whole intervention support is smooth and fluent, meanwhile, the fixed clamping head 9 and the fixed slot 10 are respectively arranged at the side edges of the fixed adjusting cylinder 11, and the two supports can be connected for use through matching and clamping and are convenient to disassemble, the intervention support is simple in structure, and portable in use.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An endovascular adjustable interventional stent, characterized in that: comprises an adjustable bracket (1), a guide plate (5), an adjusting wire (6), an adjusting bolt (8), a fixed adjusting cylinder (11) and a cylinder adjusting assembly (12); wherein one end of the adjustable bracket (1) is fixedly provided with a sealing guard ring (4), the other end of the adjustable bracket (1) is fixedly provided with a fixed adjusting cylinder (11), an inner slot hole (3) is arranged in the middle of the inside of the adjustable bracket (1), an adjusting slot hole (2) is arranged in the middle of the inner wall of the adjustable bracket (1), the inner wall of the upper end of the adjustable bracket (1) is uniformly provided with a V-shaped groove convenient for shrinkage adjustment, the middle of the adjusting slot hole (2) is uniformly provided with a guide plate (5), the inside of the guide plate (5) is provided with a limiting guide hole (51) for limiting movement of an adjusting wire (6), an inner through hole (13) in the adjusting slot is formed in the position corresponding to the adjusting slot hole (2) in the inside of the fixed adjusting cylinder (11), one side of the surface of the fixed adjusting cylinder (11) far away from the adjustable bracket (1) is provided with an adjusting bolt (8), an adjusting 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 an inner through hole (3) close to the inner slot (3), the side that adjustable support (1) was kept away from to fixed adjustment section of thick bamboo (11) is provided with fixed dop (9) and fixed slotted hole (10) respectively, section of thick bamboo adjusting part (12) are including adjusting rope (121), fixation nut (122), adjusting bolt (123), fixed fixture block (124) and rope groove hole (125), wherein, the lateral wall that fixed adjustment section of thick bamboo (11) are located adjusting inslot through-hole (13) is provided with rope slotted hole (125), be provided with fixation nut (122) in the upper end recess of fixed adjustment section of thick bamboo (11), the upper end of fixation nut (122) is fixed with adjusting bolt (123), the inside one end that is close to fixation nut (122) in rope groove hole (125) is provided with fixed fixture block (124), be connected with between fixed fixture block (124) and adjusting bolt (123) and adjust rope (121).
2. An endovascular adjustable interventional stent according to claim 1, wherein: the through hole (13) in the adjusting groove is positioned at the outer side end of the fixed adjusting cylinder (11) and is provided with a sealing block.
3. An endovascular adjustable interventional stent according to claim 1, wherein: the fixed adjusting cylinders (11) are mutually clamped, connected and fixed through the fixed clamping heads (9) and the fixed slotted holes (10).
4. An endovascular adjustable interventional stent according to claim 1, wherein: the adjusting wire (6), the adjusting bolt (8), the fixing clamping head (9) and the fixing slot (10) are matched for use, and the number of the adjusting wire is at least four.
5. An endovascular adjustable interventional stent according to any one of claims 1-4, the method of use essentially comprising the steps of:
medical personnel take out single access support according to user demand, rotatory regulation cock (8) through medical tweezers, make regulation cock (8) rotate and drive regulation line (6) and carry out rolling or unwrapping wire, adjustable support (1) can contract or expand owing to the rolling or unwrapping wire of regulation line (6) like this, because adjustable support (1) are located the inner wall of the upper end of adjusting slotted hole (2) evenly is provided with the V type groove of convenient shrink regulation, make adjustable support (1) can carry out quick contraction, realize intervention support's unidirectional regulation, medical personnel can adjust adjusting bolt (123) simultaneously, adjusting bolt (123) drive regulation rope (121) shrink or unwrapping wire like this, make whole fixed regulation section of thick bamboo (11) shrink or expand together, so make fixed regulation section of thick bamboo (11) can be adjusted together with adjustable support (1) to reach the whole smooth smoothness of intervention support, fixed chuck (9) and fixed 10) are installed respectively at the side of fixed regulation section of thick bamboo (11) simultaneously, two supports are intervene the supporting block through fixed chuck (9) and fixed (10) and are fixed, two can be used in two slotted holes of support can not put through the time so that can connect two supports in the length of the support and use, easy dismounting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076959.6A CN111481326B (en) | 2019-01-27 | 2019-01-27 | Intravascular adjustable interventional stent and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910076959.6A CN111481326B (en) | 2019-01-27 | 2019-01-27 | Intravascular adjustable interventional stent and application method thereof |
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| Publication Number | Publication Date |
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| CN111481326A CN111481326A (en) | 2020-08-04 |
| CN111481326B true CN111481326B (en) | 2023-09-22 |
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| CN113456323B (en) * | 2021-07-23 | 2023-07-25 | 贺迎坤 | Blood flow guiding device with coating |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105832368A (en) * | 2016-03-17 | 2016-08-10 | 中国人民解放军第三军医大学第二附属医院 | Medical operating channel stent |
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| AU2007227000A1 (en) * | 2006-03-20 | 2007-09-27 | Xtent, Inc. | Apparatus and methods for deployment of linked prosthetic segments |
| US9408607B2 (en) * | 2009-07-02 | 2016-08-09 | Edwards Lifesciences Cardiaq Llc | Surgical implant devices and methods for their manufacture and use |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105832368A (en) * | 2016-03-17 | 2016-08-10 | 中国人民解放军第三军医大学第二附属医院 | Medical operating channel stent |
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