CN216854950U - Blood flow guiding system for bifurcated blood vessel - Google Patents
Blood flow guiding system for bifurcated blood vessel Download PDFInfo
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- CN216854950U CN216854950U CN202121403599.5U CN202121403599U CN216854950U CN 216854950 U CN216854950 U CN 216854950U CN 202121403599 U CN202121403599 U CN 202121403599U CN 216854950 U CN216854950 U CN 216854950U
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- stent
- blood vessel
- blood flow
- bifurcated
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- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 85
- 230000017531 blood circulation Effects 0.000 title claims abstract description 21
- 210000002489 tectorial membrane Anatomy 0.000 claims abstract description 23
- 230000002792 vascular Effects 0.000 claims description 23
- 230000003110 anti-inflammatory effect Effects 0.000 claims description 9
- 230000010339 dilation Effects 0.000 claims description 5
- 206010002329 Aneurysm Diseases 0.000 description 16
- 238000007789 sealing Methods 0.000 description 7
- 210000005077 saccule Anatomy 0.000 description 5
- 238000002560 therapeutic procedure Methods 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 206010061218 Inflammation Diseases 0.000 description 2
- 229940124599 anti-inflammatory drug Drugs 0.000 description 2
- 208000007474 aortic aneurysm Diseases 0.000 description 2
- 239000000560 biocompatible material Substances 0.000 description 2
- 230000003467 diminishing effect Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000004054 inflammatory process Effects 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000002251 Dissecting Aneurysm Diseases 0.000 description 1
- 206010014513 Embolism arterial Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 201000008982 Thoracic Aortic Aneurysm Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 208000002223 abdominal aortic aneurysm Diseases 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 206010002895 aortic dissection Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001715 carotid artery Anatomy 0.000 description 1
- 230000010102 embolization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 201000002818 limb ischemia Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000000578 peripheral nerve Anatomy 0.000 description 1
- 230000000541 pulsatile effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000009278 visceral effect Effects 0.000 description 1
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Abstract
The utility model discloses a blood flow guiding system for a bifurcated blood vessel, which comprises a blood vessel support and a film covering structure, wherein the film covering structure is an integrally formed cavity structure and comprises branch film covering pipes and junction pipes, the blood vessel support is positioned in the film covering structure, the blood vessel support is distributed in the branch film covering pipes, and the film covering structure is fixedly connected with the blood vessel support. The blood vessel stent is distributed on the branch tectorial membrane tubes, and the intersection tube has flexibility and can be bent along with the trend of the blood vessel.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to a blood flow guiding system for a bifurcated vessel.
Background
Aneurysms, which are the manifestations of localized or diffuse dilatation or bulging of the arterial wall due to lesions or lesions of the arterial wall, can occur in any part of the arterial system, mainly represented by distending or pulsating masses, and are more common in the trunk arteries, aorta and carotid arteries of limbs. According to different positions of aneurysm, the aneurysm can be divided into peripheral aneurysm, abdominal aortic aneurysm, thoracoabdominal aortic aneurysm, aortic dissection aneurysm, visceral aneurysm and the like, and is mainly characterized by body surface pulsatile mass, severe pain when the aneurysm presses peripheral nerves or breaks, limb ischemia or organ necrosis caused by distal arterial embolism due to thrombus or plaque shedding in a tumor cavity, and the like.
Aneurysm interventional therapy refers to vascular interventional therapy, which is a measure for various treatments by using catheter technology based on diagnostic angiography under X-ray monitoring. Aneurysms vary in treatment from site to site. Mainly comprises surgical treatment, aneurysm intraluminal repair and aneurysm embolization. The operation principle includes aneurysm excision and artery reconstruction. The reconstruction method comprises the steps of repairing the broken opening of the artery, restraining the arterial patch, performing arterial end anastomosis and the like. The endovascular repair adopts a tectorial artificial endovascular stent to carry out aneurysm endovascular repair, has small wound and definite curative effect, but must be strictly mastered to have good indications.
The bifurcation part aneurysm is a difficult point of interventional therapy, the special blood flow guiding system applied to the bifurcation part is few at present, the double-stent therapy is mostly applied, the operation of the double-stent therapy is complex, the stent structure needs to be damaged in some operations, and the stent is hard and cannot adapt to the vascular structures in various directions.
The present invention addresses the above-identified problems by providing a blood flow directing system for bifurcated vessels.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the background art, the utility model adopts the following technical scheme:
the utility model provides a blood flow guidance system for branching blood vessel, includes vascular support and tectorial membrane structure, tectorial membrane structure is integrated into one piece's cavity structure, and the tectorial membrane structure includes branch tectorial membrane pipe and intersection pipe, and vascular support is located tectorial membrane structure's inside, and vascular support distributes in branch tectorial membrane pipe, tectorial membrane structure and vascular support fixed connection. The blood vessel stent is distributed on the branch tectorial membrane tubes, and the intersection tube has flexibility and can be bent along with the trend of the blood vessel.
Furthermore, the film covering structure is made of a biocompatible material. The film structure has good compatibility with human body.
Furthermore, the main bodies of the branch film-coated pipe and the intersection pipe are cylindrical pipes. The branch tectorial membrane tube and the junction tube in the shape conform to the shape of blood vessel.
Further, the film covering structure comprises an anti-inflammatory layer, and the anti-inflammatory layer is arranged on the outer surface of the film covering structure. After the aneurysm is removed, the anti-inflammatory layer can play a role in diminishing inflammation and preventing infection on a wound surface.
Further, the anti-inflammatory layer is an anti-inflammatory layer composed of anti-inflammatory drugs.
Further, the blood vessel support is a cylindrical tubular support. The vascular stent in the shape is consistent with the blood vessel and the film covering tube.
Further, the main body of the vascular stent is composed of a parallelogram frame. The parallelogram has the capability of deformation, the intravascular stent has good deformation force, is in a contraction state when being placed in a blood vessel, and can be unfolded after reaching a proper position.
Further, the length of the blood vessel stent is less than that of the tectorial membrane tube.
Further, a stent graft structure for different branched blood vessels is provided, and each branched stent graft comprises a blood vessel stent graft. In actual production, the matched film covering structure and the blood vessel stent are arranged according to the branch number of human body bifurcation blood vessels and the size of the blood vessels.
Further, a stent structure for stenting the vessel is provided. The stent is expanded in the blood vessel by the expanding structure.
Further, the opening structure comprises a guide tube and an opening balloon, the opening balloon is arranged at the far end of the guide tube, and the opening balloon is communicated with the guide tube. When the blood vessel stent is used, the opening saccule is opened by injecting gas into the guide pipe, the air is pumped out to deflate the opening saccule, the blood vessel stent is sleeved outside the opening saccule, the blood vessel stent is in a contraction state, and the blood vessel stent is opened by the opening saccule at a proper position of a blood vessel.
Furthermore, the guide tube is a cylindrical hose, the far end of the guide tube is a closed end, and the near end of the guide tube comprises an inflation inlet. When in use, the inflation inlet is connected with the injector, and the guide tube is inflated or exhausted outwards through the injector.
Further, the proximal end of the guide tube also comprises a sealing plug, and the sealing plug is inserted into the inflation opening. The air tightness of the guide pipe after inflation is ensured.
Furthermore, the guide tube comprises two expansion balloons, wherein the position of one expansion balloon corresponds to the position of the blood vessel stent in the branch tectorial membrane tube, and the position of the other expansion balloon corresponds to the position of the blood vessel stent in the adjacent branch tectorial membrane tube. When the stent is used, gas is injected into the guide pipe, so that the two vascular stents can be simultaneously propped open, and the stent is quick and efficient.
The utility model has the beneficial effects that: the tectorial membrane structure is soft structure, and vascular support only sets up at branch tectorial membrane pipe, has kept the compliance of intersection pipe, consequently under the guide of stand pipe, can send vascular support into the branching blood vessel to strut in suitable position, and can not harm the blood vessel, protected the integrality of blood vessel.
The use method of the utility model comprises the following steps: firstly, selecting a proper blood flow guide system for a bifurcated blood vessel according to the diameter of a branch of the blood vessel and the diameter of the blood vessel, then sleeving a film covering structure on a guide tube, placing the branch film covering tube and a blood vessel support into proper positions under the guide of the guide tube, adjusting the position of the guide tube to enable a propping balloon to correspond to the position of the blood vessel support, inserting an injector into an inflation inlet at the near end of the guide tube, injecting gas into the guide tube to enable the propping balloon to be inflated by the gas, propping the blood vessel support by the inflated propping balloon, then adjusting the position of the propping balloon, and propping the blood vessel support one by one.
Drawings
FIG. 1 is a schematic overall front view of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic structural view of the intravascular stent and the guiding tube of the present invention;
FIG. 4 is a perspective view of a stent and guide tube according to the present invention;
FIG. 5 is an enlarged elevational view of the distraction balloon and the vascular stent of the present invention;
FIG. 6 is an enlarged schematic view of the distraction balloon and the vascular stent of the present invention;
FIG. 7 is an enlarged schematic view of the inflation port and sealing plug of the guide tube of the present invention;
FIG. 8 is a schematic view of the present invention with a guide tube for the dilation balloon;
FIG. 9 is a schematic structural view of the vascular stent and guide tube with two distraction balloons according to the present invention;
FIG. 10 is a schematic view of the structure of two guide tubes for the distraction balloon of the present invention;
FIG. 11 is a schematic view of the overall structure of the present invention for a bifurcated vessel;
FIG. 12 is a schematic perspective view of a bifurcated vessel in accordance with the present invention;
in the figure, 1, a film structure; 11. branch film-coated pipes; 12. an intersection pipe; 13. a vascular stent; 2. a guide tube; 21. opening the balloon; 22. an inflation inlet; 23. and (4) sealing the plug.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below by specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The proximal end of the present invention is the end near the operator, and the distal end is the end far from the operator.
Example 1
As shown in fig. 1-2, the blood flow guiding system for a bifurcated blood vessel in this embodiment includes a blood vessel support 13 and a film covering structure 1, the film covering structure 1 is an integrally formed cavity structure, the film covering structure 1 includes a branch film covering tube 11 and an intersection tube 12, the blood vessel support 13 is located inside the film covering structure 1, the blood vessel support 13 is distributed in the branch film covering tube 11, and the film covering structure 1 is fixedly connected to the blood vessel support 13. The blood vessel stent 13 is distributed on the branch tectorial membrane tube 11, and the intersection tube 12 has flexibility and can be bent along with the trend of the blood vessel.
The main bodies of the branch coated pipes 11 and the junction pipes 12 are cylindrical pipes. The branch coated tube 11 and the junction tube 12 of this shape conform to the shape of a blood vessel.
The blood vessel stent 13 is a cylindrical stent. The vascular stent 13 of this shape conforms to the blood vessel and the graft tubing.
A stent structure is provided for stenting the vessel stent 13. The stent 13 is expanded in the blood vessel by the expanding structure.
As shown in the figure, the blood vessel stent 13 in the present embodiment is wrapped by the branch covering film tube 11, and the blood vessel stent 13 is expanded by the expanding structure, so that the blood vessel stent 13 supports the blood vessel.
Example 2
As shown in fig. 3 to 8, the present embodiment specifically sets the blood vessel stent 13 and the stent structure on the basis of embodiment 1:
the film structure 1 is made of biocompatible material. The film covering structure 1 has good compatibility with human body.
The film structure 1 includes an anti-inflammatory layer disposed on an outer surface of the film structure 1. After the aneurysm is removed, the anti-inflammatory layer can play a role in diminishing inflammation and preventing infection on a wound surface.
The anti-inflammatory layer is made of anti-inflammatory drugs.
The main body of the stent 13 is constituted by a parallelogram frame. The parallelogram has the capability of deformation, the intravascular stent 13 with the arrangement has good deformation force, the intravascular stent 13 is in a contraction state when being placed in a blood vessel, and the intravascular stent 13 can be propped open after reaching a proper position.
The length of the stent 13 is smaller than that of the coated tube.
The distraction structure comprises a guide tube 2 and a distraction balloon 21, the distraction balloon 21 is arranged at the far end of the guide tube 2, and the distraction balloon 21 is communicated with the guide tube 2. When the blood vessel stent is used, the distraction balloon 21 is distracted by injecting gas into the guide tube 2, the gas is pumped out to deflate the distraction balloon 21, the blood vessel stent 13 is sleeved on the outer side of the distraction balloon 21, the blood vessel stent 13 is in a contraction state at the moment, and the blood vessel stent 13 is distracted by the distraction balloon 21 at a proper position of a blood vessel.
The guide tube 2 is a cylindrical hose, the distal end of the guide tube 2 is a closed end, and the proximal end of the guide tube 2 includes an inflation port 22. When in use, the inflation port 22 is connected with an injector, and the guide tube 2 is inflated or exhausted outwards through the injector.
The proximal end of the guide tube 2 further comprises a sealing plug 23, the sealing plug 23 being inserted into the inflation port 22. The tightness of the guide tube 2 after inflation is ensured, and the gas which expands the inside of the saccule 21 after the sealing plug 23 is taken down can overflow the outside of the body of the patient through the guide tube 2.
As shown in the figure, the present embodiment can be used for treatment of a bifurcated blood vessel, in the present embodiment, the position of the guide tube 2 is adjusted to enable the position of the expansion balloon 21 to correspond to the position of the blood vessel stent 13, and the expansion balloon 21 expands the blood vessel stent 13 in the filling state, so that the blood vessel stent 13 plays a role in supporting a blood vessel in the blood vessel.
Example 3
As shown in fig. 9 to 10, the present embodiment is different from embodiment 2 in that: the guide tube 2 comprises two expansion balloons 21, wherein the position of one expansion balloon 21 corresponds to the position of the blood vessel stent 13 in the branch coated tube 11, and the position of the other expansion balloon 21 corresponds to the position of the blood vessel stent 13 in the adjacent branch coated tube 11. When the blood vessel stent is used, the gas is injected into the guide pipe 2, so that the two blood vessel stents 13 can be simultaneously expanded, and the blood vessel stent is quick and efficient.
The guide tube 2 in the embodiment can simultaneously strut two blood vessel stents 13, and particularly can rapidly and efficiently complete the operation of strutting the blood vessel stents 13 when being used for multi-bifurcation blood vessels, thereby saving the operation time.
Example 4
As shown in fig. 11 to 12, the present embodiment is based on the above-described embodiments: the stent graft structure 1 for different bifurcated blood vessels is provided, and each branch stent graft 11 includes a blood vessel stent 13 therein. In actual production, the matched film covering structure 1 and the blood vessel bracket 13 are arranged according to the branch number and the blood vessel size of the human bifurcated blood vessel, so that blood flow guide systems for the bifurcated blood vessels with different specifications are produced, are suitable for different bifurcated blood vessels, meet various clinical requirements, provide better treatment for patients, protect the blood vessels of the patients and have good after-healing effect. The blood flow directing system for bifurcated vessels shown in the drawings can be used for treatment of bifurcated vessels, although the illustration is merely to give an example for explanation and should not be construed as limiting the utility model.
The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the utility model without departing from the principle of the utility model, which would also fall within the scope of the claims of the utility model.
Claims (10)
1. The utility model provides a blood flow guide system for branching blood vessel, its includes vascular support and tectorial membrane structure, its characterized in that, tectorial membrane structure is integrated into one piece's cavity structure, and the tectorial membrane structure includes branch tectorial membrane pipe and intersection pipe, and vascular support is located the inside of tectorial membrane structure, and vascular support distributes in branch tectorial membrane pipe, tectorial membrane structure and vascular support fixed connection.
2. The blood flow directing system for bifurcated vessels of claim 1 wherein the main bodies of the branch coated tubes and junction tubes are cylindrical tubes.
3. The blood flow directing system for a bifurcated vessel of claim 2, wherein the graft structure includes an anti-inflammatory layer disposed on an outer surface of the graft structure.
4. The blood flow directing system for bifurcated vessels of claim 3, wherein the vascular stent is a cylindrical tubular stent.
5. The blood flow directing system for bifurcated vessels of claim 4 wherein the main body of the vascular stent is comprised of a parallelogram frame.
6. The blood flow directing system for bifurcated vessels of claim 5 wherein a graft structure is provided for different bifurcated vessels, each branch graft including a vascular stent therein.
7. A blood flow directing system for a bifurcated vessel as claimed in any one of claims 1-6, wherein a stent structure is provided for stenting the vessel.
8. The blood flow guidance system for bifurcated vessels of claim 7, wherein the dilation structure includes a guide tube and a dilation balloon disposed at a distal end of the guide tube, the dilation balloon in communication with the guide tube.
9. The blood flow directing system for bifurcated vessels of claim 8, wherein the guide tube is a cylindrical flexible tube, the distal end of the guide tube is a closed end, and the proximal end of the guide tube includes an inflation port.
10. The blood flow directing system for a bifurcated vessel as claimed in claim 9, wherein the directing tube includes two dilation balloons, one of which corresponds in position to the position of the stent in a branch graft and the other of which corresponds in position to the stent in an adjacent branch graft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202121403599.5U CN216854950U (en) | 2021-06-23 | 2021-06-23 | Blood flow guiding system for bifurcated blood vessel |
Applications Claiming Priority (1)
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CN202121403599.5U CN216854950U (en) | 2021-06-23 | 2021-06-23 | Blood flow guiding system for bifurcated blood vessel |
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CN216854950U true CN216854950U (en) | 2022-07-01 |
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CN202121403599.5U Expired - Fee Related CN216854950U (en) | 2021-06-23 | 2021-06-23 | Blood flow guiding system for bifurcated blood vessel |
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CN (1) | CN216854950U (en) |
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2021
- 2021-06-23 CN CN202121403599.5U patent/CN216854950U/en not_active Expired - Fee Related
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220701 |
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