CN105193530B - It is connected the trans-articular intravascular stent of pattern with turning joint - Google Patents
It is connected the trans-articular intravascular stent of pattern with turning joint Download PDFInfo
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- CN105193530B CN105193530B CN201510774757.0A CN201510774757A CN105193530B CN 105193530 B CN105193530 B CN 105193530B CN 201510774757 A CN201510774757 A CN 201510774757A CN 105193530 B CN105193530 B CN 105193530B
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Abstract
The invention discloses a kind of trans-articular intravascular stent for being connected pattern with turning joint, brace sections are compiled including online and net compiles brace sections, it is characterized in that provided with universal linking retractor device, upper connection ring and lower connection ring, the upper connection ring is fixed on online and compiles brace sections end, the lower connection ring is fixed on the net and compiles brace sections end, the online is compiled brace sections and is fixedly connected through universal linking retractor device and net volume brace sections, the present invention is due to using said structure, it is novel with structure, operation wound is small, operating time is short, it is simple to operate, it is antifatigue the advantages of bend and stretch.
Description
Technical field
The present invention relates to technical field of medical instruments, specifically a kind of trans-articular blood for being connected pattern with turning joint
Pipe holder.
Background technology
It is well known that arterial obliterans of lower extremity mainly due to atherosclerosis cause the narrow of arterial lumen or
Person's occlusion, caused by Severe Chronic Ischemiaof Lower Extramities, there is a series of clinical symptoms and sign, main performance early stage it is intermittent lame
The defect of row, rest pain and tissue（Ulcer and gangrene）.The Annual occurence rate of lower Extremity Arterial Diseases and age and atherosclerosis
It is relevant to there is situation in hazards.In 30-44 Sui age bracket, the Annual occurence rate of intermittent claudication is 6/10000ths, women in male
It is about 61/10000ths in 65-74 Sui age bracket male's incidence of disease, women is increased to 54/10000ths, crowd's incidence of disease for 3/10000ths
It is high.Different according to the length of lesion and position, therapeutic modality is different, mainly there is open surgery, intracavitary recovery technique, hybridization skill
Art etc..The features such as intracavitary recovery technique has that wound is small, recovers fast, operating time is short, clinical practice increasingly, especially to basis
The elderly that disease is more, anesthetic risks are higher is frequently as preferred option.
But for the lower extremity artery pathology of trans-articular, including across the arteria iliacofemoralis lesion, popliteal arterial diseases of hip joint, intracavitary
There is dispute in treatment.Because traditional trans-articular blood vessel metallic support is in the curvature movement repeatedly in live body joint, joint is lived
Dynamic degree is big, and support can need enough compliances to comply with joint motion, therefore, easily go out cash with limb activity, trans-articular
Belonging to silk, flex fatigue is broken repeatedly, and the fatigue fracture position of trans-articular intravascular stent, and the overwhelming majority occurs in institute's trans-articular
Warpage maximum intensity point repeatedly, blood vessel metallic support fracture causes the support broken ends of fractured bone to be implanted to Endovascular thrombosis, intravascular
Film hyperplasia, and cause stenter to implant correspondence vessel lumen ISR, occlusion.In addition, support also needs to enough strength support blood
Pipe lesion.Although existing many money trans-articular stent applications are in clinic, its long-term patency rate there is no compellent data, Ge great Zhi
Frame company is improved support compliance, produces compliance more preferable trans-articular support such as everflex, lifestent
Deng the intracavitary therapy effect of across the knee pass section popliteal arterial disease patient of the report such as South Korea Chang, postoperative 6 months support fracture rates
For 61.5%, patency rate is only 44%.There is scholar to propose that trans-articular is put up a bridge or hybridization technique solves trans-articular lesion using cutting, but
Traditional operation wound is big, and operating time is long；Hybridization operation needs open surgery to operate progress simultaneously, complex operation, anesthesia with DSA
It is required that higher.
Through retrieval, CN2010205136077 discloses a kind of utility model patent of artificial blood vessel, and the patent is by varicosity
Polytetrafluorethyletubular tubular outer layer, expanded polytetrafluoroethyltube tube shape internal layer, and the gold being folded between tubular outer layer and tubular inner layer
Belong to supporting support composition, the metal supporting support in the shape of a spiral, and in the metal supporting support axially spaced-apart be provided with metal
Ring, although this structure, which solves, prevents buckling of vessel, can prevent internal organs or joint part from making vascular pressure by metal supporting rings
It is flat, but the deficiency of this structure is：Because metal supporting support is made up of independent becket and helical metal wire, logical
When crossing bracket conveyer, its diameter can not press poly- shrinkage, by 8mm conduit through caliber for 7-10mm femoral artery to lesion blood
During pipe is imported, Accessory injury is caused to blood vessel, unnecessary pain is brought to patient.
The content of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, there is provided a kind of structure is novel, operation wound is small, operation
Time is short, simple to operate, it is antifatigue bend and stretch, wear-resistant, high temperature resistant, the trans-articular blood for being connected pattern with turning joint of high lubrication
Pipe holder.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of trans-articular intravascular stent for being connected pattern with turning joint, including net compiles support epimere and net compiles brace sections,
It is characterized in that provided with universal linking retractor device, upper connection ring and lower connection ring, the upper connection ring is fixed on net and compiles support
Epimere end, the lower connection ring is fixed on the net and compiles brace sections end, and it is flexible through universal linking that the net compiles support epimere
Device is compiled brace sections with net and is fixedly connected, in favor of by universal linking retractor device, reach comply with joint motion while,
It is antifatigue repeatedly tortuous in the curvature movement repeatedly in the live body joint for also improving human body trans-articular, it is to avoid wire occur repeatedly
Flex fatigue is broken.
Universal linking retractor device of the present invention is made of medical macromolecular materials, the universal linking retractor device
It is made up of external extension set and interior telescopic, the external extension set upper side is compiled support through upper connection ring and online and is fixedly connected, under
Portion and the mutual fit of interior telescopic, the interior telescopic lower end are fixedly connected with lower connection ring, when the live body of human hip is closed
When saving flexing, cover flexible with interior telescopic by external extension, transported with improving the flexing repeatedly in live body joint of human body trans-articular
It is antifatigue repeatedly tortuous in dynamic, it is to avoid wire occur, flex fatigue is broken repeatedly.
The present invention can also external extension set and the end of the connection end of interior telescopic be provided with obtuse ring, the obtuse ring is
Bullet, described obtuse ring outer wall one end is fixedly connected with telescopic end and is close to axially downward and gradually axle center circular arc
Cross, in favor of avoiding in the live body joint flexing of trans-articular, it is to avoid the sharp property end of telescopic is to the IA blood vessel of live body
Wall is scratched, and causes vascellum endometrial hyperplasia.
Universal linking retractor device of the present invention can also be set along the circle spacing array of upper connection ring and lower connection ring
Put, the universal linking retractor device is made up of telescopic and expansion link, and the flexible set upper side is fixed with upper connection ring to be connected
Connect, bottom is flexibly connected with expansion link, the expansion link lower end is fixedly connected with lower connection ring, when the live body of human hip is closed
When saving flexing, stretching or contracting by the telescopic and expansion link of upper connection ring and lower connection ring circumference, to improve human body trans-articular
Live body joint curvature movement repeatedly in it is antifatigue repeatedly tortuous, it is to avoid wire occur, flex fatigue is broken repeatedly.
The present invention can also be provided with obtuse ring in the connection end end of the telescopic and expansion link, and the obtuse ring is taper
Body, the obtuse ring outer wall has telescopic outer wall axially downward and is gradually close to axle center circular arc mistake, in favor of avoiding across pass
During the live body joint flexing of section, it is to avoid the sharp property end of telescopic is scratched to the IA vascular wall of live body, and causes blood
Pipe endometrial hyperplasia.
The present invention can be provided with passage, center line and the telescopic axis phase of the passage in the telescopic madial wall
Intersect, and its angle correspondence blood flow direction, in favor of ensureing the quick sliding of telescopic and expansion link, it is to avoid produce negative pressure influence
Use, meanwhile, in motion process, also reach the effect impacted to the blood in support, it is to avoid the row formation of clot.
The material of universal linking retractor device of the present invention is preferred to use expanded PTFE and is made, to reach effectively
Platelet aggregation is prevented, while the formation of the pre- preventing thrombosis of its hydrophobic performance, in the curvature movement repeatedly in live body joint, prominent
The fatigue strength of the folding strength maximum point of trans-articular activity gesture is improved, is reached and is increased the service life, avoids secondary injury
Effect.
Upper connection ring of the present invention and lower connection ring are circumferentially crowded around by adjacent stator and flexible mesh sheet respectively
Form, the stator is in outwards recessed arcwall face, and periphery is mellow and full, the stator of the upper connection ring is fixed with telescopic to be connected
Connect, the lower connection ring is fixedly connected through stator with expansion link, in favor of by net compile the flexible of piece and make upper connection ring and
Diameter of the lower connection ring when importing blood vessel reduces, it is to avoid cause secondary injury to vascular wall.
The present invention can also compile brace sections lower end provided with second universal linking retractor device, described second ten thousand in the net
Support hypomere is compiled to linking retractor device lower end and net to be fixedly connected, in favor of further expanding the scope of anti-warpage.
The present invention is due to using said structure, with structure is novel, operation wound is small, operating time is short, simple to operate, anti-
The advantages of fatigue is bent and stretched.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention.
Fig. 2 is the structural representation of another embodiment of the present invention.
Reference：Net compiles support epimere 1, net and compiles brace sections 2, upper connection ring 3, lower connection ring 4, external extension set 5, interior stretches
Contracting set 6, telescopic 7, expansion link 8, memorial alloy tension spring 9, obtuse ring 10, obtuse ring 11, stator 12, flexible mesh sheet
13rd, second universal linking retractor device 14, net compile support hypomere 15.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of trans-articular intravascular stent for being connected pattern with turning joint, including net compile support epimere 1
Brace sections 2 are compiled with net, it is characterised in that provided with universal linking retractor device, upper connection ring 3 and lower connection ring 4, the upper connection
Ring 3 is fixed on net and compiles the end of support epimere 1, and the lower connection ring 4 is fixed on the net and compiles the end of brace sections 2, and the net compiles branch
Frame epimere 1 is fixedly connected through universal linking retractor device with net volume brace sections 2, in favor of by universal linking retractor device,
Reach while comply with joint motion, in the curvature movement repeatedly in the live body joint for also improving human body trans-articular it is antifatigue repeatedly
It is tortuous, it is to avoid wire occur, flex fatigue is broken repeatedly.
Universal linking retractor device of the present invention is made of medical macromolecular materials, the universal linking retractor device
It is made up of external extension set 5 and interior telescopic 6, the external extension, which covers 5 upper ends and compiles support 1 through upper connection ring 3 and online and fix, to be connected
Connect, bottom and the mutual fit of interior telescopic 6, the interior lower end of telescopic 6 are fixedly connected with lower connection ring 4, work as human hip
Live body joint flexing when, by external extension cover 5 and interior telescopic 6 it is flexible, to improve the live body joint of human body trans-articular
It is repeatedly antifatigue repeatedly tortuous in curvature movement, it is to avoid wire occur, flex fatigue is broken repeatedly.
The present invention can also external extension set 5 and the end of the connection end of interior telescopic 6 be provided with obtuse ring 10, the obtuse
Ring 10 is bullet, and 5 ends of described outer wall one end of obtuse ring 10 and external extension set are fixedly connected and leaned on axially downward and gradually
To axle center circular arc mistake, in favor of avoiding in the live body joint flexing of trans-articular, it is to avoid the sharp property end of external extension set 5 is to live body
IA vascular wall is scratched, and causes vascellum endometrial hyperplasia.
It is of the present invention it is universal linking retractor device can also along upper connection ring 3 and lower connection ring 4 circle spacing array
Set, the universal linking retractor device is made up of telescopic 7 and expansion link 8, the upper end of telescopic 7 and upper connection ring 3
It is fixedly connected, bottom is flexibly connected with expansion link 8, the lower end of expansion link 8 is fixedly connected with lower connection ring 4, when human body hip is closed
During the live body joint flexing of section, stretching or contracting by the telescopic 7 and expansion link 8 of upper connection ring 3 and the lower circumference of connection ring 4, with
It is antifatigue repeatedly tortuous in the curvature movement repeatedly in the live body joint for improving human body trans-articular, it is to avoid wire occur and roll over repeatedly
Bent fatigue fracture.
The present invention can also be provided with obtuse ring 10, the obtuse ring 10 in the connection end end of the telescopic 7 and expansion link 8
For bullet, the outer wall of obtuse ring 10 has the outer wall of telescopic 7 axially downward and is gradually close to axle center circular arc mistake, in favor of keeping away
Exempt from the live body joint flexing of trans-articular, it is to avoid the sharp property end of telescopic 7 is scratched to the IA vascular wall of live body,
And cause vascellum endometrial hyperplasia.
The present invention can be provided with passage, center line and the telescopic axis phase of the passage in the telescopic madial wall
Intersect, and its angle correspondence blood flow direction, in favor of ensureing the quick sliding of telescopic and expansion link, it is to avoid produce negative pressure influence
Use, meanwhile, in motion process, also reach the effect impacted to the blood in support, it is to avoid the row formation of clot.
The material of universal linking retractor device of the present invention is preferred to use expanded PTFE and is made, to reach effectively
Platelet aggregation is prevented, while the formation of the pre- preventing thrombosis of its hydrophobic performance, in the curvature movement repeatedly in live body joint, prominent
The fatigue strength of the folding strength maximum point of trans-articular activity gesture is improved, is reached and is increased the service life, avoids secondary injury
Effect.
Upper connection ring 3 of the present invention and lower connection ring 4 are along circle respectively by adjacent stator 12 and flexible mesh sheet 13
Surrounding holds together to form, and the stator 12 is in outwards recessed arcwall face, and periphery is mellow and full, and the upper connection ring 3 is through stator 12 with stretching
Contracting set 7 is fixedly connected, and the lower border stator 12 of connection ring 3 is fixedly connected with expansion link 8, in favor of passing through mesh sheet 13 of stretching
Stretch and reduce the diameter of connection ring 3 and lower connection ring 4 when importing blood vessel, it is to avoid cause secondary injury to vascular wall.
The present invention can also compile the lower end of brace sections 2 provided with second universal linking retractor device 14, described second in the net
The individual universal linking lower end of retractor device 14 is compiled support hypomere 15 with net and is fixedly connected, in favor of further expanding the model of anti-warpage
Enclose.
After in the lesion vesselses in clinical injection human body trans-articular of the invention, net compiles support epimere 1 and is located at trans-articular
Above live body joint, the net is compiled brace sections 2 and is located at below the live body joint of trans-articular, and universal linking retractor device is located at described
Live body joint part, after the present invention is injected into, upper connection ring and lower connection ring are compiled support epimere and netted and compile brace sections in net
It is softened under drive, universal linking retractor device is strutted in the presence of upper connection ring and lower connection ring along trans-articular position, when
During the live body joint extension of trans-articular, the telescopic 7 and expansion link 8 of upper connection ring 3 and the lower circumference of connection ring 4 are concentric vertically
Stretch, when live body joint flexing, telescopic 7 and expansion link 8 bend simultaneously and it is relative stretch or be retracted, by telescopic 7 and stretch
The space that contracting bar 8 is surrounded is expanded, and is strengthening repeatedly tortuous intensity, improve lesion vesselses position support strength it is same
When, it is ensured that the normal operation of blood in trans-articular diseased region blood vessel.
The present invention is due to using said structure, with structure is novel, operation wound is small, operating time is short, simple to operate, anti-
The advantages of fatigue is bent and stretched.
Claims (3)
1. a kind of trans-articular intravascular stent for being connected pattern with turning joint, including net compiles support epimere and net compiles brace sections, its
It is characterised by that, provided with universal linking retractor device, upper connection ring and lower connection ring, the upper connection ring is fixed on net and compiled on support
Section end, the lower connection ring is fixed on the net and compiles brace sections end, and the net compiles support epimere through the flexible dress of universal linking
Put and be fixedly connected with net volume brace sections, circle spacing array of the universal linking retractor device along upper connection ring and lower connection ring
Set, the universal linking retractor device is made up of telescopic and expansion link, and the flexible set upper side is fixed with upper connection ring
Connection, bottom is flexibly connected with expansion link, and the expansion link lower end is fixedly connected with lower connection ring, the telescopic and expansion link
Connection end end be provided with obtuse ring, the obtuse ring be bullet, the obtuse ring outer wall have telescopic outer wall vertically to
Axle center arc transition is close to down and gradually, the telescopic madial wall is provided with passage, and the center line of the passage is with stretching
Set axis intersects, and its angle correspondence blood flow direction, and the material of the universal linking retractor device uses medical high polymer material
Material is made, and the upper connection ring and lower connection ring are circumferentially crowded around and formed by adjacent stator and flexible mesh sheet respectively, institute
Stator is stated in outwards recessed arcwall face, periphery is mellow and full, and the upper connection ring is fixedly connected through stator with telescopic, it is described under
Connection ring is fixedly connected through stator with expansion link, in the lesion vesselses in clinical injection human body trans-articular after, net compiles support
Epimere is located above the live body joint of trans-articular, and the net is compiled brace sections and is located at below the live body joint of trans-articular, universal linking
Retractor device is located at the live body joint part, when the live body joint extension of trans-articular, upper connection ring and lower connection ring circumference
Telescopic and expansion link is concentric vertically stretches, when live body joint flexing, telescopic is bent and phase simultaneously with expansion link
To stretching, being retracted, the space surrounded by telescopic and expansion link is expanded.
2. a kind of trans-articular intravascular stent for being connected pattern with turning joint according to claim 1, it is characterised in that institute
Medical macromolecular materials are stated for expanded PTFE.
3. a kind of trans-articular intravascular stent for being connected pattern with turning joint according to claim 1, it is characterised in that institute
State net and compile brace sections lower end provided with second universal linking retractor device, second universal linking retractor device lower end and net
Support hypomere is compiled to be fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510774757.0A CN105193530B (en) | 2015-11-13 | 2015-11-13 | It is connected the trans-articular intravascular stent of pattern with turning joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510774757.0A CN105193530B (en) | 2015-11-13 | 2015-11-13 | It is connected the trans-articular intravascular stent of pattern with turning joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105193530A CN105193530A (en) | 2015-12-30 |
| CN105193530B true CN105193530B (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510774757.0A Active CN105193530B (en) | 2015-11-13 | 2015-11-13 | It is connected the trans-articular intravascular stent of pattern with turning joint |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106691644A (en) * | 2017-01-12 | 2017-05-24 | 吉林大学 | Colorectum support with thermotherapy function |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868783A (en) * | 1997-04-16 | 1999-02-09 | Numed, Inc. | Intravascular stent with limited axial shrinkage |
| US6077296A (en) * | 1998-03-04 | 2000-06-20 | Endologix, Inc. | Endoluminal vascular prosthesis |
| US9220615B2 (en) * | 2011-02-23 | 2015-12-29 | Celonova Stent, Inc. | Stent having at least one connecting member configured to controllably sever in vivo |
| US10039656B2 (en) * | 2013-06-05 | 2018-08-07 | Abbott Cardiovascular Systems Inc. | Coupled scaffold segments |
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