CN115813551A - Special bracket for in-vitro windowing and use method thereof - Google Patents
Special bracket for in-vitro windowing and use method thereof Download PDFInfo
- Publication number
- CN115813551A CN115813551A CN202211479402.5A CN202211479402A CN115813551A CN 115813551 A CN115813551 A CN 115813551A CN 202211479402 A CN202211479402 A CN 202211479402A CN 115813551 A CN115813551 A CN 115813551A
- Authority
- CN
- China
- Prior art keywords
- windowing
- stent
- membrane
- marker
- corresponding marker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000338 in vitro Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 13
- 239000003550 marker Substances 0.000 claims abstract description 90
- 239000007787 solid Substances 0.000 claims abstract description 18
- 239000012528 membrane Substances 0.000 claims description 74
- 210000004204 blood vessel Anatomy 0.000 claims description 31
- 230000000903 blocking effect Effects 0.000 claims description 28
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- ZONODCCBXBRQEZ-UHFFFAOYSA-N platinum tungsten Chemical compound [W].[Pt] ZONODCCBXBRQEZ-UHFFFAOYSA-N 0.000 claims description 3
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical compound [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 239000010948 rhodium Substances 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 8
- 210000004379 membrane Anatomy 0.000 description 58
- 239000010408 film Substances 0.000 description 41
- 210000000709 aorta Anatomy 0.000 description 10
- 210000001367 artery Anatomy 0.000 description 8
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000000565 sealant Substances 0.000 description 6
- 201000010099 disease Diseases 0.000 description 5
- 230000036770 blood supply Effects 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 230000003187 abdominal effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000916 dilatatory effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 210000000115 thoracic cavity Anatomy 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 208000002251 Dissecting Aneurysm Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 210000000702 aorta abdominal Anatomy 0.000 description 1
- 210000002376 aorta thoracic Anatomy 0.000 description 1
- 208000007474 aortic aneurysm Diseases 0.000 description 1
- 206010002895 aortic dissection Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 210000002469 basement membrane Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000001715 carotid artery Anatomy 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000013039 cover film Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 210000002254 renal artery Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 210000003270 subclavian artery Anatomy 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 210000002385 vertebral artery Anatomy 0.000 description 1
- 230000009278 visceral effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a special bracket for in vitro windowing, which comprises a bracket frame, a covering film and a marker group, wherein the covering film is arranged on the bracket frame; the covering film covers the support frame, at least two groups of marker groups are arranged, and the marker groups are uniformly distributed on the support frame along the axis of the support frame; the marker group comprises a plurality of markers, and the markers of the same marker group are arranged on the same cross section of the support frame. According to the technical scheme, positions of the windowing areas on the coating film are marked through different marker groups on the stent model and a plurality of markers on the marker groups, and the positions of the windowing areas on the coating film are positioned on the solid stent through the different marker groups and the markers on the marker groups, so that a doctor is assisted to quickly find the windowing areas on the solid model, assisted positioning is carried out through the markers, and the positioning time is short and the positioning is more accurate.
Description
Technical Field
The invention relates to the technical field of intravascular stents, in particular to a stent special for in vitro windowing and a using method thereof.
Background
The aorta is the largest artery in the human body, and is directly connected with the heart and a direct channel for pumping out blood in the heart. The aortic artery dilating diseases, including aortic aneurysm, aortic dissection and the like, have the characteristics of rapid onset of disease, high early mortality and the like, are diseases which can not be treated once, but with the maturation of surgical technology and the development of imaging technology, the minimally invasive interventional therapy technology utilizing the intracavity isolation principle is widely utilized at present, and the aortic artery dilating diseases are accurately released after a compressed aortic stent with a film is delivered to the position of a diseased aorta by using a set of delivery system with a thinner pipe diameter. The aorta bracket is covered on the diseased aorta and forms a new blood flow channel; after the diseased aorta loses the blood supply, the residual blood at the diseased aorta gradually organizes and forms thrombus until gradually recovering to be close to the original shape, thereby achieving the aim of treatment. However, since there are many branch arteries in the aorta, after the covered aortic stent is placed in the aorta, blood supply to the diseased aorta is lost, and the circulation of blood in the branch arteries, which are blood supply vessels of important organs of the body, is also prevented, and if blood supply failure occurs, various serious complications are caused. Therefore, clinically, fenestrations are needed at the corresponding branch arteries on the aortic stent to maintain the aortic arch in the branch arteries with important branch vessels, including the subclavian artery supplying the upper extremities, the carotid artery supplying the brain, the vertebral artery, the abdominal aorta with branch vessels leading to both kidneys.
Among the prior art, because human difference, everyone's branch blood vessel position is different, can't solve through prefabricated windowing support, generally solve through two kinds of technical approaches now, and one of which is normal position windowing technique, and the support normal position "windowing" that utilizes technologies such as laser will put into, the advantage is for laminating visceral artery's position with accuracy, reduces interior hourglass etc. nevertheless has great potential safety hazard in the use at present, for example: the human body can be damaged, the windowing time is not easy to control, and complications are easy to cause; the second is an in vitro windowing technology, but the existing in vitro windowing technology generally comprises the steps of printing a human body model in a 3D mode, then placing a stent into the model for marking and windowing, the method is high in technical barrier, expensive in cost and long in time, and once the morbidity and mortality of arterial dilatation diseases of aorta are extremely high, the rescue time is short, so that the stent which is short in windowing time and accurate in windowing is needed.
Disclosure of Invention
The invention mainly aims to provide a special bracket for in-vitro windowing and a using method thereof, and aims to solve the problems that the traditional bracket has long windowing time and cannot be used for windowing accurately.
In order to achieve the purpose, the special bracket for in vitro windowing provided by the invention comprises a bracket frame, a covering film and a marker group; the covering film covers the support frame, at least two groups of marker groups are arranged, and the marker groups are uniformly distributed on the support frame along the axis of the support frame; the marker group comprises a plurality of markers, and the markers of the same marker group are arranged on the same cross section of the support frame.
Preferably, the material forming/making the markers comprises one or more of gold, platinum-tungsten, palladium, platinum-iridium, rhodium and tantalum, and the markers of the same marker group are different in volume or shape for distinguishing by the different volumes or shapes displayed by the markers under X-ray.
The covering film comprises a base film and a blocking film; the base film with the support frame is connected, the through-hole has been seted up on the base film, the shutoff membrane lid is established on the through-hole, the edge of shutoff membrane with the base film is connected.
Preferably, the base film is provided with a projection protruding toward the through-hole, the projection being connected with the blocking film by a connecting member.
Preferably, the protruding blocks are arranged in a plurality, and the protruding blocks are uniformly distributed at the edge of the through hole.
More preferably, the plugging membrane and the base membrane are connected by a connecting ring membrane, and the edge of the connecting ring membrane is connected with the base membrane; the middle part of the connecting ring membrane is provided with a connecting hole, and the edge of the plugging membrane is connected with the connecting ring membrane.
More preferably, the number of the connection ring membranes is at least two, the connection ring membranes are sequentially connected, and the inner diameter and the outer diameter of the connection hole of each connection ring membrane are sequentially reduced.
More preferably, the connection ring membrane is provided with a projection protruding toward the connection hole, and the projection is connected with the adjacent connection ring membrane or the blocking membrane by a connection member.
The invention also provides a use method of the special bracket for in vitro windowing, which is characterized by comprising the following steps of:
a stent model pre-modeled according to the above method;
importing the disease information and the CT data of a patient into a computer to establish a patient blood vessel model, selecting a proper pre-modeled stent model according to the patient blood vessel model, importing the stent model into the blood vessel model, acquiring a preset position of the stent model after expansion, and determining a windowing area required by the stent model according to the stent model and the position of a branch blood vessel in the blood vessel model;
acquiring a corresponding marker group and a corresponding marker on the stent model according to the windowing region, wherein the corresponding marker group and the corresponding marker are used for positioning the windowing region on the stent model;
unfolding the solid stent in vitro, positioning the windowing region on the solid stent according to the corresponding marker group and the corresponding marker, and removing the film on the solid stent in the windowing region;
and placing the entity bracket after windowing into a human body, and judging whether the bracket reaches the preset position in the blood vessel or not through the corresponding marker group and the corresponding marker.
Preferably, the step of obtaining a corresponding marker group and a corresponding marker on the stent model according to the windowing region, where the corresponding marker group and the corresponding marker are used to locate the windowing region on the stent model includes:
adjusting the angle of the stent model according to the windowing region and the position of the plugging membrane on the simulated stent, so that the central position of the plugging membrane on the simulated stent is superposed with the central position of the branch blood vessel;
and acquiring a corresponding marker group and a corresponding marker on the stent model, wherein the corresponding marker group and the corresponding marker are used for positioning the windowing region on the stent model.
According to the technical scheme, positions of the windowing areas on the coating film are marked through different marker groups on the stent model and a plurality of markers on the marker groups, and the positions of the windowing areas on the coating film are positioned on the solid stent through the different marker groups and the markers on the marker groups, so that a doctor is assisted to quickly find the windowing areas on the solid model, assisted positioning is carried out through the markers, and the positioning time is short and the positioning is more accurate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of the special bracket for external windowing of the invention.
Fig. 2 is a schematic structural view of the stent (wave stent) for external windowing of the present invention after being unfolded.
Fig. 3 is a schematic structural view of the bracket (rhombic bracket) specially used for external windowing of the invention after being unfolded.
The reference numbers illustrate:
1. a support frame; 2. coating a film; 3. a set of markers; 4. a label; 5. a base film; 6. a blocking membrane; 7. a through hole; 8. a bump; 9. a connecting ring membrane; 10. and connecting the holes.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a stent special for in vitro windowing, which comprises a stent frame 1, a covering membrane 2 and a marker set 3; the covering film 2 covers the support frame 1, at least two groups of marker groups 3 are arranged, and the marker groups are uniformly distributed on the support frame 1 along the axis of the support frame 1; the marker group 3 comprises a plurality of markers 4, and the markers 4 of the same marker group are arranged on the same cross section of the bracket frame 1.
According to the technical scheme, the positions of the windowing areas on the coating film 2 are marked by the different marker groups 3 and the markers 4 on the marker groups 3 on the stent model, and the positions of the windowing areas on the coating film 2 are positioned on the solid stent by the different marker groups 3 and the markers 4 on the marker groups 3, so that a doctor is assisted to quickly find the windowing areas on the solid model, and the markers 4 are used for assisting in positioning, so that the positioning time is short, and the positioning is more accurate.
More specifically, different marker sets 3 mark the length position of the fenestrated area on the graft 2, and different markers 4 mark the angle of the fenestrated area on the graft 2.
More specifically, the development mark is fixed on the stent frame 1 or the covering membrane 2 by means of stamping, hot pressing, sewing or winding.
More specifically, when there is more than one windowed area, the two windowed areas and the distance and angle between the two windowed areas are positioned by marker group 3 and marker 4, so that the positions of the two windowed areas are more stable.
In one embodiment, the number and spacing requirements for the different sets of stent markers 3 are different, and the thoracic and abdominal main stents are differently marked depending on the release pattern.
In one embodiment, the stent frame 1 is an abdominal aortic stent and the spacing between adjacent marker sets 3 is 0.4-0.6 cm. So that both marker sets can locate the root of the renal artery.
In one embodiment, the stent frame 1 is a thoracic aortic stent and the spacing between adjacent marker sets 3 is 1.2-2.6 cm.
In one embodiment, in an emergency situation, the physician can compare the solid stent with the CT image through experience and CT image, so as to mark the position on the solid stent through the marker set 3 and the marker 4, and then cut the solid stent through the marker set 3 and the marker 4.
In one embodiment, marks are arranged on the covering film 2 corresponding to the markers 4, the marks are regularly arranged in sequence, the marks are used for assisting in distinguishing the markers 4 when in vitro windowing, and more specifically, auxiliary lines are arranged on the covering film 2.
In another embodiment of the present invention, the material forming/making the markers 4 comprises one or more of gold, platinum-tungsten, palladium, platinum-iridium, rhodium and tantalum, and the plurality of markers 4 of the same marker set have different volumes or shapes for distinguishing by the different volumes or shapes displayed by the plurality of markers 4 under the X-ray.
Specifically, the markers 4 are displayed differently under the X-ray, so that whether the stent reaches the designated position or not can be checked under the X-ray after the stent is placed in the human body, and whether the windowing region is overlapped with the connecting part of the branch blood vessel or not can be confirmed.
In yet another embodiment of the present invention, the cover film 2 includes a base film 5 and a blocking film 6; the base film 5 with the support frame 1 is connected, the through-hole 7 has been seted up on the base film 5, 6 lid of shutoff membrane are established on the through-hole 7, the edge of shutoff membrane 6 with the base film 5 is connected.
Specifically, in order to be able to open the window fast, when through-hole 7 and the regional coincidence of windowing, perhaps when the regional difference in area of windowing and through-hole 7 is not big, directly separate shutoff membrane 6 and base film 5, the speed of separation is faster, and the edge is more neat simultaneously, prevents to produce the piece, among the prior art, generally opens the window for the doctor through scalpel or surgical forceps.
In another embodiment of the present invention, the base film 5 is provided with a plurality of through holes 7 arranged in an array, and each through hole 7 is provided with a plugging film 6. Thereby making it easier for the through-hole 7 to coincide with a blood vessel branch.
In a further embodiment of the invention, the base film 5 is provided with bumps 8 protruding towards the through holes 7, the bumps 8 being connected with the blocking film 6 by connecting means. The lug 8 is provided with a plurality of, a plurality of 8 equipartitions of lug are in the edge of through-hole 7.
Specifically, the lug 8 is the extension of base film 5, connects through sealed glue between base film 5 and the shutoff membrane 6, and base film 5 passes through the connecting elements on lug 8 and the lug 8 and connects simultaneously, and connecting elements is silk thread or metal button, connects through sealed glue connection and connecting elements respectively and connects, and dual connection is more stable.
In a further embodiment of the invention, the blocking membrane 6 and the base membrane 5 are connected by a connecting ring membrane 9, the edge of the connecting ring membrane 9 being connected to the base membrane 5; the middle part of the connecting ring membrane 9 is provided with a connecting hole 10, and the edge of the plugging membrane 6 is connected with the connecting ring membrane 9.
Specifically, the through hole 7 and the plugging membrane 6 have the same shape.
Referring to fig. 1, in one embodiment, the through hole 7 and the blocking film 6 are both circular, and the centers of the through hole 7 and the blocking film 6 are coincident.
Referring to fig. 3, in one embodiment, the through holes 7 are different in shape on the same bracket, for example, one of the through holes 7 is set as a circle center, and the other through hole 7 is set as an ellipse.
In still another embodiment of the present invention, at least two connection ring membranes 9 are provided, the connection ring membranes 9 are sequentially connected, and both inner and outer diameters of the connection holes 10 of the connection ring membranes 9 are sequentially decreased.
Specifically, when a plurality of connection ring membranes 9 are provided, the connection ring membranes 9 can be appropriately selected according to the size of the blood vessel to be separated, so that the size of the blood vessel is more consistent with the size of the fenestration.
In a further embodiment of the invention, the connection ring membrane 9 is provided with a projection 8 projecting toward the connection hole 10, and the projection 8 is connected to the adjacent connection ring membrane 9 or the blocking membrane 6 by a connection member.
Specifically, the bump 8 is an extension of the connection ring membrane 9, and the connection ring membrane 9 (when a plurality of connection ring membranes 9 are connected), or the connection ring membrane 9 and the plugging membrane 6 (when one connection ring membrane 9 is connected) are connected by a sealant; meanwhile, the basement membrane 5 is connected with the connecting component on the lug 8 through the connecting component on the lug 8, the connecting component is a silk thread or a metal buckle, the connection and the connecting component are respectively connected through the sealant, the double connection is more stable, meanwhile, the distance between the lug 8 and the center is more increased, after the blood vessel is placed, the blood pressure generates positive pressure on the covering membrane 2, the pulling force for connecting the annular membrane 9 and the blocking membrane 6 in parallel is generated between the connecting annular membrane 9 and the blocking membrane 6, after the lug 8 is arranged, the lug 8 and the connecting component bear the pulling force firstly, the stress born by the sealant is reduced, and the leakage caused by the failure of the sealant is prevented.
More specifically, the first blocking layer and the second blocking layer passing through the sealant are separated by cutting the bump 8 and the blocking layer with an instrument (scalpel or forceps) and then separating the first blocking layer and the second blocking layer by heating or chemical reagent according to the selected sealant, so that the time for cutting between the first blocking layer and the second blocking layer is short and the cut edges are neat.
In another embodiment of the present invention, the connection ring membrane 9 comprises a first blocking layer and a second blocking layer, the first blocking layer is covered on the through hole 7, the edge of the first blocking layer is connected with the base membrane 5, the middle part of the first blocking layer is provided with a second through hole 7, the second blocking layer is covered on the through hole 7, and the edge of the second blocking layer is connected with the first blocking layer; the orientation of first shutoff layer one side of through-hole 7 is provided with lug 8, the lug 8 of first shutoff layer with the second shutoff layer is connected.
The invention also comprises a using method of the special bracket for in vitro windowing, which comprises the following steps:
s001, pre-modeling a stent model according to the method;
s100, importing the patient condition data and the CT data into a computer to establish a patient blood vessel model, selecting a proper pre-modeled stent model according to the patient blood vessel model, importing the stent model into the blood vessel model, acquiring a preset position of the stent model after being unfolded, and determining a windowing region required by the stent model according to the stent model and the position of a branch blood vessel in the blood vessel model;
s200, acquiring a corresponding marker group 3 and a corresponding marker 4 on the stent model according to the windowing region, wherein the corresponding marker group 3 and the corresponding marker 4 are used for positioning the windowing region on the stent model;
s300, unfolding the solid stent in vitro, positioning the windowing region on the solid stent according to the corresponding marker group 3 and the corresponding marker 4, and removing the coating 2 on the solid stent in the windowing region;
s400, placing the entity support after windowing into a human body, and judging whether the support reaches the preset position in the blood vessel or not through the corresponding marker group 3 and the corresponding marker 4.
Specifically, a two-dimensional medical tomographic image is acquired by CT; preprocessing a two-dimensional medical sectional image; establishing a 3D model of a patient blood vessel and a 3D model of a stent by using general computer aided design software; adding material attributes, marker 4 numbers and dynamic simulation into the support 3D model; and then obtaining the preset position of the expanded stent model, and determining the windowing area required by the stent model according to the stent model and the position of the branch blood vessel in the blood vessel model.
In another embodiment of the present invention, the step of S200 includes:
s210, adjusting the angle of the stent model according to the windowing region and the position of the plugging membrane 6 on the simulated stent, so that the central position of the plugging membrane 6 on the simulated stent is superposed with the central position of the branch vessel;
s220, obtaining a corresponding marker group 3 and a corresponding marker 4 on the stent model, wherein the corresponding marker group 3 and the corresponding marker 4 are used for positioning the windowing region on the stent model.
More specifically, when the stent with the plugging film 6 is placed, the central position of the plugging film 6 can be coincided with the central position of the branch blood vessel, so that the covering film 2 in the windowing region is removed in the subsequent steps, the plugging film 6 with the corresponding size is removed according to the size of the branch blood vessel, rapid and accurate windowing is realized, the windowing speed is relatively higher through shearing and cutting by an instrument, meanwhile, the cutting edge is neat, and the covering film 2 can be prevented from being damaged in the shearing process or a leak point caused by overlarge area can be prevented.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A special bracket for in vitro windowing is characterized by comprising a bracket frame, a covering film and a marker group; the covering film covers the support frame, at least two groups of marker groups are arranged, and the marker groups are uniformly distributed on the support frame along the axis of the support frame; the marker group comprises a plurality of markers, and the markers of the same marker group are arranged on the same cross section of the support frame.
2. The stent for extracorporeal windowing according to claim 1, wherein the material forming/making the markers comprises one or more of gold, platinum-tungsten, palladium, platinum-iridium, rhodium and tantalum, and the plurality of markers of the same marker set are different in volume or shape for distinguishing by the different volume or shape displayed by the plurality of markers under X-ray.
3. The special in vitro windowing stent according to claim 1, wherein the covering membrane comprises a basal membrane and a plugging membrane; the base film with the support frame is connected, the through-hole has been seted up on the base film, the shutoff membrane lid is established on the through-hole, the edge of shutoff membrane with the base film is connected.
4. The special bracket for external windowing as claimed in claim 3, wherein the base film is provided with a projection protruding towards the through hole, and the projection is connected with the plugging film through a connecting member.
5. The special bracket for in vitro windowing as claimed in claim 4, wherein a plurality of the bumps are arranged and uniformly distributed at the edge of the through hole.
6. The special bracket for in vitro windowing as claimed in claim 3, wherein the plugging film and the base film are connected through a connecting ring film, and the edge of the connecting ring film is connected with the base film; the middle part of the connecting ring membrane is provided with a connecting hole, and the edge of the plugging membrane is connected with the connecting ring membrane.
7. The special bracket for external windowing as claimed in claim 6, wherein the number of the connecting ring membranes is at least two, the connecting ring membranes are sequentially connected, and the inner diameter and the outer diameter of the connecting hole of the connecting ring membranes are sequentially reduced.
8. The special bracket for external windowing as claimed in claim 7, wherein the connecting ring membrane is provided with a projection protruding towards the connecting hole, and the projection is connected with the adjacent connecting ring membrane or the blocking membrane through a connecting component.
9. The use method of the special bracket for in vitro windowing is characterized by comprising the following steps:
importing the patient condition data and the CT data into a computer to establish a patient blood vessel model, selecting a proper pre-modeled stent model according to the patient blood vessel model, importing the stent model into the blood vessel model, acquiring a preset position of the stent model after being unfolded, and determining a windowing region required by the stent model according to the stent model and the position of a branch blood vessel in the blood vessel model;
acquiring a corresponding marker group and a corresponding marker on the stent model according to the windowing region, wherein the corresponding marker group and the corresponding marker are used for positioning the windowing region on the stent model;
unfolding the solid stent in vitro, positioning the windowing region on the solid stent according to the corresponding marker group and the corresponding marker, and removing the film on the solid stent in the windowing region;
and placing the entity support after windowing into a human body, and judging whether the support reaches the preset position in the blood vessel or not through the corresponding marker group and the corresponding marker.
10. The in vitro windowing specific stent and the method of using the same according to claim 9, wherein the step of obtaining a corresponding marker set and a corresponding marker on the stent model according to the windowing region, the corresponding marker set and the corresponding marker being used for positioning the windowing region on the stent model, comprises:
adjusting the angle of the stent model according to the windowing region and the position of the plugging membrane on the simulated stent, so that the central position of the plugging membrane on the simulated stent is superposed with the central position of the branch blood vessel;
and acquiring a corresponding marker group and a corresponding marker on the stent model, wherein the corresponding marker group and the corresponding marker are used for positioning the windowing region on the stent model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211479402.5A CN115813551B (en) | 2022-11-24 | 2022-11-24 | Special bracket for external windowing and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211479402.5A CN115813551B (en) | 2022-11-24 | 2022-11-24 | Special bracket for external windowing and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115813551A true CN115813551A (en) | 2023-03-21 |
| CN115813551B CN115813551B (en) | 2024-06-11 |
Family
ID=85530920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211479402.5A Active CN115813551B (en) | 2022-11-24 | 2022-11-24 | Special bracket for external windowing and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115813551B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090198178A1 (en) * | 2007-12-26 | 2009-08-06 | The Regents Of The University Of Michigan | Ostial Stenting System |
| US20090264990A1 (en) * | 2008-04-21 | 2009-10-22 | Medtronic Vascular, Inc. | Radiopaque Imprinted Ink Marker for Stent Graft |
| CN107837130A (en) * | 2017-11-28 | 2018-03-27 | 严中亚 | It is a kind of it is quick prepare for treat aortic arch interlayer art in individuation overlay film frame method |
| CN109498210A (en) * | 2018-11-08 | 2019-03-22 | 东莞先健畅通医疗有限公司 | Intraluminal stent |
| CN109803607A (en) * | 2016-06-13 | 2019-05-24 | 主动脉公司 | For marking and/or reinforcing the systems, devices and methods to open a window in prothesis implant body |
| CN110236748A (en) * | 2019-05-30 | 2019-09-17 | 中国人民解放军陆军军医大学第一附属医院 | One kind exempting from customized precisely external windowing aortic stents |
| US20200138611A1 (en) * | 2017-07-14 | 2020-05-07 | Jotec Gmbh | Intraluminal vascular prosthesis |
| CN113712703A (en) * | 2021-08-20 | 2021-11-30 | 北京华脉泰科医疗器械股份有限公司 | Aortic arch part covered stent and conveying device thereof |
| JP2022024124A (en) * | 2018-11-14 | 2022-02-08 | 株式会社日本医療機器開発機構 | Stent graft having portion for fenestration |
-
2022
- 2022-11-24 CN CN202211479402.5A patent/CN115813551B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090198178A1 (en) * | 2007-12-26 | 2009-08-06 | The Regents Of The University Of Michigan | Ostial Stenting System |
| US20090264990A1 (en) * | 2008-04-21 | 2009-10-22 | Medtronic Vascular, Inc. | Radiopaque Imprinted Ink Marker for Stent Graft |
| CN109803607A (en) * | 2016-06-13 | 2019-05-24 | 主动脉公司 | For marking and/or reinforcing the systems, devices and methods to open a window in prothesis implant body |
| US20200138611A1 (en) * | 2017-07-14 | 2020-05-07 | Jotec Gmbh | Intraluminal vascular prosthesis |
| CN107837130A (en) * | 2017-11-28 | 2018-03-27 | 严中亚 | It is a kind of it is quick prepare for treat aortic arch interlayer art in individuation overlay film frame method |
| CN109498210A (en) * | 2018-11-08 | 2019-03-22 | 东莞先健畅通医疗有限公司 | Intraluminal stent |
| JP2022024124A (en) * | 2018-11-14 | 2022-02-08 | 株式会社日本医療機器開発機構 | Stent graft having portion for fenestration |
| CN110236748A (en) * | 2019-05-30 | 2019-09-17 | 中国人民解放军陆军军医大学第一附属医院 | One kind exempting from customized precisely external windowing aortic stents |
| CN113712703A (en) * | 2021-08-20 | 2021-11-30 | 北京华脉泰科医疗器械股份有限公司 | Aortic arch part covered stent and conveying device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115813551B (en) | 2024-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11154690B2 (en) | Devices and methods for endovascular access and therapy | |
| AU2017272200B2 (en) | Devices and methods for endovascular access and therapy | |
| US20170049991A1 (en) | Devices and methods for endovascular access and therapy | |
| US6097978A (en) | Measurement confirmation devices and methods for fluoroscopically directed surgery | |
| JP6343290B2 (en) | Endovascular occlusion system | |
| US20070078506A1 (en) | Method and apparatus for decompressing aneurysms | |
| CN108606862B (en) | Dot matrix windowing type component for aortic stent transplantation | |
| EP1991163B1 (en) | Vascular prosthesis for aneurysms and method for manufacturing of the same | |
| US20050245891A1 (en) | Method and apparatus for decompressing aneurysms | |
| CN208525133U (en) | A kind of overlay film frame suitable for dissection of aorta operation | |
| JP2010520026A (en) | Intravascular placement device | |
| JP2004529735A (en) | Prosthetic implants and their use | |
| EP3714838B1 (en) | Multi-chamber covered stent | |
| JPH04231954A (en) | Method and apparatus for repairing aortic implant and abdominal aortic tumor | |
| US20170330488A1 (en) | Surgical Simulator | |
| WO2022002274A1 (en) | Covered stent for implantation at vascular branch, and covered stent system | |
| CN203898496U (en) | Abdominal aorta stent | |
| CN108403255A (en) | A kind of novel bow portion stent system and its application method | |
| CN115813551A (en) | Special bracket for in-vitro windowing and use method thereof | |
| CN103948455A (en) | Abdominal aorta stent | |
| CN209173169U (en) | A kind of trans-radial interposing catheter | |
| CN110236748B (en) | Exempt from to make accurate external windowing aortic support of order | |
| CN212346807U (en) | Covered stent for implanting branch of blood vessel and covered stent system | |
| CN111759531A (en) | Brain protection device and aortic valve replacement surgical instrument | |
| CN220714096U (en) | Iliac artery tectorial membrane support and tectorial membrane support subassembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |