CN109549753A - Heart valve - Google Patents
Heart valve Download PDFInfo
- Publication number
- CN109549753A CN109549753A CN201710872451.8A CN201710872451A CN109549753A CN 109549753 A CN109549753 A CN 109549753A CN 201710872451 A CN201710872451 A CN 201710872451A CN 109549753 A CN109549753 A CN 109549753A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- bracket
- leaflet
- heart valve
- leaflet bracket
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
- A61F2/2418—Scaffolds therefor, e.g. support stents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2427—Devices for manipulating or deploying heart valves during implantation
- A61F2/2436—Deployment by retracting a sheath
Landscapes
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention relates to a kind of heart valves.A kind of heart valve, including bracket and connector, the bracket includes leaflet bracket and connecting rod, the leaflet bracket has first end and the second end opposite with first end, one end of the connecting rod and the second end of the leaflet bracket are affixed, the connecting rod is multiple and is uniformly distributed along the second end, multiple connecting rods are connected to the connector far from one end of the second end, the angle of the axis of the determined straight line of the tie point and leaflet bracket of the tie point and the connecting rod and the connector of the connecting rod and the leaflet bracket is the angle of the connecting rod, the angle of the connecting rod is 40 °~60 °.Above-mentioned heart valve can be taken into account into sheath power and leaflet support intensity.
Description
Technical field
The present invention relates to medical instruments, more particularly to a kind of heart valve.
Background technique
Heart valve disease is a kind of very universal cardiac disorder, and wherein the damage of valve caused by rheumatic fever is the most often
See one of reason.As aging of population aggravates, caused valve lesion after senile valvular heart disease and coronary heart disease myocardial infarction
Also increasingly common.These valve lesions not only life threatening safety, influence quality of life, while bring to family and society it is heavy
The burden and pressure of weight.The heart of human body is divided into four atrium sinistrum, left ventricle and atrium dextrum, right ventricle chambers of the heart, two atrium point
It is not connected with two ventricles, two ventricles and two main arteries are connected.Heart valve is just grown between atrium and ventricle, ventricle
Between main artery, play the role of one-way cock, helps blood flow unidirectional motion.Four valves of human body are referred to as two points
Valve, tricuspid valve, aorta petal and pulmonary valve.These valves just will affect the movement of blood flow in the event of lesion, to make
At heart dysfunction, heart failure is eventually led to.
In recent years, the patient of mitral stenosis and reflux can also be replaced with percutaneous through the mitral valve of sheath
Art is implanted into heart valve by intervention, minimally invasive method and carries out this operation, patient is allowed to avoid the hardship of open chest surgery.By
In the reason of the physiology, the pressure load in mitral valve position is higher than the pressure load in aortic heart valve, leads to two points
Valve load is bigger, therefore artificial heart valve bracket needs biggish support force.Such as there is a danger of, artificial heart valve
The support force of membrane support is too small, and bracket is caused not have good radial reaction force to resist blood pressure.Meanwhile the artificial heart
Dirty valve bracket it is excessive into sheath power, cause artificial heart valve bracket enter sheath when, there are larger resistances, influence heart
The conveying and release process of valve bracket.The support force of aorta petal bracket is too small, and the distance between each leaflet is caused to occur
Variation causes part leaflet opening and closing function limited, ultimately forms leaflet incompetence center reflux or opening is narrow.
Summary of the invention
Based on this, it is necessary to provide and a kind of take into account the heart valve into sheath power and leaflet support intensity.
A kind of heart valve, including bracket and connector, the bracket include leaflet bracket and connecting rod, the leaflet bracket
With first end and the second end opposite with first end, one end of the connecting rod and the second end of the leaflet bracket are affixed, institute
It states connecting rod and is multiple and is uniformly distributed along the second end that multiple connecting rods are connected to institute far from one end of the second end
Connector is stated, the tie point and the connecting rod of the connecting rod and the leaflet bracket and the tie point of the connector determine directly
The angle of the axis of line and the leaflet bracket is the angle of the connecting rod, and the angle of the connecting rod is 40 °~60 °.
Above-mentioned heart valve, the angle [alpha] of connecting rod is 40 °~60 ° and can control sheath power in lower range, makes heart valve
Membrane support is preferably conveyed and is discharged during transportation；And the intensity of leaflet bracket can reach maximum range, to mention
The enough supports of leaflet are supplied, guarantee the fluid property of leaflet, reduce the risk that leaflet center is backflowed.
Detailed description of the invention
Fig. 1 is the valvular structural schematic diagram of an embodiment；
Fig. 2 is the status diagram that heart valve shown in FIG. 1 is implanted into heart；
Fig. 3 is the valvular partial structure diagram of Fig. 1；
Fig. 4 is the structural schematic diagram of the valvular bracket of Fig. 1；
Fig. 5 is the partial cutaway view of the valvular bracket of Fig. 1；
Fig. 6 is the outline drawing of the valvular skirt hanger of Fig. 1；
Fig. 7 is the structural schematic diagram of another angle of bracket of Fig. 4；
Fig. 8 is the flat deployable structure schematic diagram of the bracket of Fig. 4；
Fig. 9 is the partial sectional view after the heart valve of Fig. 1 is connect with hollow wirerope；
Figure 10 is the structural schematic diagram of an angle of the valvular connector of Fig. 1；
Figure 11 is the valvular structural schematic diagram of another embodiment；
Figure 12 is the valvular structural schematic diagram of another embodiment；
Figure 13 is the partial sectional view that the heart valve of another embodiment cooperates with hollow wirerope and sheath；
Figure 14 is the stereogram exploded view of the valvular connector in Figure 13；
Figure 15 is the partial cutaway view of the valvular bracket of another embodiment；
Figure 16 is the partial cutaway view of the valvular bracket of another embodiment；
Figure 17 is the outline drawing of the valvular skirt hanger of Figure 16；
Outline drawing after valvular leaflet and skirt hanger assembling that Figure 18 is Figure 16；
Figure 19 is the flat deployable structure schematic diagram of the valvular bracket of another embodiment；
Figure 20 is the valvular structural schematic diagram of another embodiment；
Figure 21 is the valvular structural schematic diagram of another embodiment；
Figure 22 is the valvular structural schematic diagram of another embodiment；
Figure 23 is the valvular structural schematic diagram of another embodiment；
Figure 24 is the valvular structural schematic diagram of another embodiment；
Figure 25 is the valvular structural schematic diagram of another embodiment；
Figure 26 is the valvular structural schematic diagram of another embodiment；
Figure 27 is the valvular structural schematic diagram of another embodiment.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating
It is thorough comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side ", "upper", "lower", " remote ", " close " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Please refer to Fig. 1 and Fig. 2, in the present embodiment, to heart valve 100 by taking mitral valve bracket as an example
Structure is illustrated, and certainly, in other embodiments, heart valve 100 is not limited to mitral valve bracket shown in FIG. 1
It can also be other kinds of artificial valve bracket, such as pulmonary valve valve bracket, aortic valve stent.
Please refer to Fig. 2 and Fig. 3, heart valve 100 includes bracket 110, connector 130, tether 150, choked flow piece 170
And leaflet 190.
Referring to Fig. 4, bracket 110 includes leaflet bracket 112, skirt hanger 114 and connecting rod 116.
In the illustrated embodiment, leaflet bracket 112 is substantially cylindrical, has first end and opposite with first end
Second end.It should be noted that in the illustrated embodiment, first end is distal end, and second end is proximal end.Distal end indicates operation
In the process far from one end of operator, proximal end indicates one end that proximal operator is depended in surgical procedure.Leaflet bracket 112 includes wave circle
1121 and connecting rod 1123.Leaflet bracket 112 includes the wave circle 1121 that multiple axially spaced-aparts along leaflet bracket 112 are arranged.Wave
Circle 1121 provides the radial support power of leaflet bracket 112, and in the illustrated embodiment, leaflet bracket 112 includes three wave circles
1121.Three wave circles 1121 are connected and fixed by multiple connecting rods 1123.In the illustrated embodiment, the number of connecting rod 1123
Amount is identical as the quantity of the trough of wave circle 1121, and a connecting rod 1123 is fixedly connected with the trough of three wave circles 1121 simultaneously.
Certainly, in other embodiments, connecting rod 1123 can also be fixedly connected with the other positions of wave circle 1121 such as wave crest.
Please refer to Fig. 4 and Fig. 5, skirt hanger 114 includes support portion 1141 and warping part 1143.Support portion 1141 is certainly
Leaflet bracket 112 extends radially outwardly along leaflet bracket 112, and 1143 self-supporting portion 1141 of warping part is far from leaflet bracket 112
One end to first end bend extend.Human body mitral annulus of the support portion 1141 for heart valve 100 in heart 100 is consolidated
Fixed, warping part 1143 is for preventing the edge of skirt hanger 114 to the abrasion of left atrial tissue.If without warping part 1143
The remote edge in radial support portion 1141 is directly contacted with atrial tissue, then can be to atrial tissue shape under long-term heartbeat
At cutting effect, cause atrial tissue impaired.And having the presence of warping part 1143, skirt hanger 114 and atrial tissue contact are just
Become face contact, increase contact area, reduce footprint pressure, avoids cutting of the skirt hanger 114 to heart tissue
Effect, and caused by denude.
Please refer to Fig. 4 and Fig. 5, skirt hanger 114 includes support portion 1141 and warping part 1143.Support portion 1141 is certainly
Leaflet bracket 112 extends radially outwardly along leaflet bracket 112, and 1143 self-supporting portion 1141 of warping part is far from leaflet bracket 112
One end to the first end of leaflet bracket 112 bend extend.Support portion 1141 is used for heart valve 100 in the human body two of heart 20
The fixation of cusp annulus, warping part 1143 is for preventing the edge of skirt hanger 114 to the abrasion of left atrial tissue.If no
Warping part 1143 then radial support portion 1141 remote edge directly and atrial tissue contact, then can under long-term heartbeat
Cutting effect is formed to atrial tissue, causes atrial tissue impaired.And have the presence of warping part 1143, skirt hanger 114 and the heart
Tissue contact in room has reformed into face contact, increases contact area, reduces footprint pressure, avoids skirt hanger 114 to the heart
The cutting effect of dirty tissue, and caused by denude.
In embodiment shown in Fig. 4, the first of the support portion 1141 of skirt hanger 114 and close leaflet bracket 112
The trough of the wave circle 1121 at end is affixed.In this way, 112 nearly three points of leaflet bracket can be allowed when heart valve 100 is implanted into heart 20
One of axial dimension be located at atrium sinistrum, so that it be avoided excessively to be implanted into left ventricle and cause left ventricular outflow tract narrow or even obstruct
Resistance.
It should be noted that leaflet bracket 112 is also not necessarily limited to centainly include wave circle 1121 and connecting rod 1123, can also be
Other structures, skirt hanger are also not necessarily connect with the trough of wave circle 1121.As long as can guarantee skirt hanger 114 close to leaflet branch
One end of frame 112 substantially 1/4~1/2 of the axial length of leaflet bracket 112, preferably three points at a distance from first end
One of.Certainly, as needed, skirt hanger 114 can also be adjusted close to the different positions in one end of leaflet bracket 112 circumferentially face
It sets not exactly the same at a distance from first end at a distance from first end, that is, skirt hanger 114 is close to one end of leaflet bracket 112
Different location on different circumferencial directions.The width of the support portion 1141 of skirt hanger 114 is in one of the embodiments,
2mm~6mm.Herein, the width of support portion 1141 refers to the one end and leaflet bracket of support portion 1141 close to warping part 1143
The distance between 112.The width of support portion 1141 is 2mm~6mm, this width is approximately equal in 20 mitral annulus of human heart
Side can fully ensure that heart valve 100 in human heart mitral annulus to the width of atrial wall namely the radial width of annulus
Fixation.
The height of warping part 1143 is 2mm~6mm in one of the embodiments,.Herein, the height of warping part 1143 refers to
Be the one end of warping part 1143 far from support portion 1141 and close to support portion 1141 the distance between one end.Warping part 1143
The too low edge that cannot prevent skirt hanger 114 well of height to the abrasion of heart tissue, it is too high, a left side may be hurt
Its hetero-organization in atrium.
Referring to Fig. 6, the profile of the support portion 1141 of skirt hanger 114 in terms of valve blood flow inflow side, is circular ring shape, outside
Profile is circle, and the outer profile of certain support portion 1141 can also be other shapes.
Referring to Fig. 7, in the illustrated embodiment, skirt hanger 114 includes multiple skirt subelements, skirt subelement
Substantially petal, multiple skirt subelements are uniformly distributed along the circumferential direction of leaflet bracket 112.Each skirt subelement includes branch
Support part 1141 and warping part 1143.
Referring to Fig. 4, connecting rod 116 includes proximal link 1162, leaflet rack rod 1164 and connector 1166.Proximal end
Connecting rod 1162 is generally rod-shaped.The substantially V-type of leaflet rack rod 1164, including two proximally connecting rod 1162 one end extend
Strut, two one end of strut far from proximal link 1162 are adjacent close to the wave circle of second end with leaflet bracket 112 respectively
Two troughs are affixed, and each trough is connect with a strut, so that multiple connecting rods 116 are uniformly distributed along second end, to work as
Heart valve 100 plays guiding role when taking in sheath, and trough has been prevented to be stuck in outside sheath.If leaflet rack rod 1164 connects
Leaflet bracket 112 is connected at the wave crest of the wave circle of second end, when heart valve 100 is when entering sheath, trough can be stuck in sheath
Outside.
It is understood that leaflet rack rod 1164 can also be other shapes, for example, can be "-" type, from close
One end of end link 1162 directly extends to be connect with the trough of leaflet bracket second end, that is, the quantity and proximal link of strut
1162 quantity is consistent.
Connector 1166 is formed in the one end of proximal link 1162 far from leaflet rack rod 1164.In embodiment illustrated
In, connector 1166 is generally rod-shaped, extends perpendicular to proximal link 1162, and certainly, in other embodiments, connector 1166 is also
It can be wafer type, or spherical.
In the illustrated embodiment, it is leaflet bracket 112, skirt hanger 114 and connecting rod 116 by same that bracket 110 is whole
One tubing is cut, and is integrally formed structures.One cutting obtains flat deployable structure schematic diagram such as Fig. 8 of bracket 100
It is shown.Certainly, it is pointed out that shown in Fig. 8 is expanded view, and bracket 110 after tubing integrally cutting by still substantially managing
Shape is shaped into shape as shown in Figure 4 by heat treatment process.The relatively seperated cutting of one cutting is then assembled, has compression
The advantages of radial dimension is small afterwards, is easy into sheath, while each section of bracket 100 cancels welding or splicing construction, also improves branch
The anti-fatigue performance of frame 100.In the present embodiment, bracket 110 is 6~10mm by diameter, and wall thickness is the tool of 0.3~0.5mm
There is superelastic nickel titanium tubing to cut.
Please refer to Fig. 1, Fig. 4, Fig. 9 and Figure 10, the connector 1166 and connector 130 of the connecting rod 116 of bracket 110 connect
It connects.Connector 130 includes plug socket 132 and connection cover 134.In the illustrated embodiment, plug socket 132 is substantially cylindrical,
One end is recessed to form container 1322, and the other end offers screw hole 1324.Screw hole 1324 is connected to container 1322.In diagram
In embodiment, one end that plug socket 132 offers screw hole 1324 is gradually tapered up as taper type.In one of the embodiments,
Heart valve 100 further includes hollow wirerope 30, the conveying for accessory heart valve 100.Screw hole 1324 can with for conveying
The hollow wirerope 30 of heart valve 100 connects, and one end of hollow wirerope 30 can be screwed togather with screw hole 1324, thus by hollow wirerope
30 one end and connector 130 are fixed, and connection can be released by way of rotation.When heart valve 100 is in delivery sheath
When middle conveying, hollow wirerope 30 can play the role of pushing and pulling heart valve 100, allow heart valve 100 in delivery sheath inner cavity
Middle movement, and after heart valve 100 is discharged from delivery sheath, it can also be by heart valve 100 again by hollow wirerope 30
It is secondary to retract delivery sheath.
The lid of connection cover 134 sets and is fixed on container 1322.In the illustrated embodiment, connection cover 134 is contained in
Tank 1322 and with the cell wall of container 1322 by being welded and fixed.Connection cover 134 offers multiple limit holes 1342.Connecting rod
116 are arranged in limit hole 1342, and connector 1166 is contained in container 1322.Connector 1166 supports connection cover 134 close to screw hole
1324 side surface.In the illustrated embodiment, at least one-dimensional size of connector 1166 be greater than limit hole 1342 aperture with
Connector 1166 is avoided to fall off from limit hole 1342.
One end of tether 150 is formed with blocking portion 152, and tether 150 is fixed on connector 130 by blocking portion 152.Tether
150 are inserted in screw hole 1324 and blocking portion 152 is contained in container 1322.The one-dimensional size of blocking portion 152 is greater than screw hole 1324
Internal diameter, so that blocking portion 152 be avoided to fall off from screw hole 1324.The material of tether 150 is selected from terylene, nylon, super high molecular weight
At least one of polyethylene, NiTi and stainless steel braided wires.In the illustrated embodiment, blocking portion 152 is tether 150
The tieing that one end is formed by knots tied.Certainly, in other embodiments, or the other structures of 150 one end of tether are formed in,
It falls off as long as being avoided that from from screw hole 1324.In use, tether 150 extends outwardly from container 1322 and passes through hollow steel
The inner hole of cable 30 prevents blocking portion 152 to be directly exposed to ventricle, and causes thrombus；Blocking portion 152 is also prevented from distal end nothing simultaneously
The movement of limitation.
Referring to Fig. 5, Fig. 5 is the partial cutaway view of heart valve 100, under heart valve 100 is in the open state,
The angle [alpha] of connecting rod 116 is 40 °~60 °.The angle [alpha] of connecting rod 116 refers to tie point and the company of connecting rod 116 and leaflet bracket 112
The angle of the axis of the determined straight line of tie point and leaflet bracket 112 of bar 116 and connector 130.It should be noted that scheming
In the embodiment shown, connecting rod 116 is linear type, and the angle [alpha] of connecting rod 116 is the folder of the axis of connecting rod 116 and leaflet bracket 112
Angle.The leaflet bracket 112 of the angle [alpha] of the connecting rod 116 of different angle is tested in the sheath that internal diameter is 11mm, test is different
The leaflet bracket 112 of the angle [alpha] of the connecting rod 116 of angle enters sheath power and the support of leaflet bracket 112 the sheath that internal diameter is 11mm
Relationship between intensity, the angle [alpha] of discovery connecting rod 116 is 40 °~60 ° and can control sheath power in lower range, and leaflet
The radial support intensity of bracket 112 can reach maximum range.Certainly, the angle [alpha] of each different connecting rods 116 used is tested
Other all parameters in addition to the angle [alpha] of connecting rod 116 of leaflet bracket 112 are all the same.Preferably, the angle α of connecting rod 116 be 45 °~
60°.It is furthermore preferred that the angle α of connecting rod 116 is 50 °~60 °.
Referring to Fig. 2, heart valve 100 can also include gasket 160.The material of gasket 160 is selected from terylene, Buddhist nun
At least one of dragon, ultra-high molecular weight polyethylene, NiTi and stainless steel braided wires.Gasket 160 can for felt shape disk,
Plate-like, the disk like of high molecular material injection molding of titanium-nickel wire braiding.After heart valve 100 is implanted into human heart 20, tether 150 is remote
One end from connecting rod 116 is formed by knots tied anchor portion 154 after passing through heart 20 and gasket 160 and gasket 160 is fixed.
Choked flow piece 170 is excessive by bracket 110 for blocking blood flow, cooperates with leaflet 190 and guarantees blood in heart valve
One-way flow in 100.The material of choked flow piece 170 is PTFE, PET, PU, casing or animal packet.Choked flow piece 170 is according to material
Difference, can be laminating by heat pressing process, or by suture be fixed to bracket 110.Referring to Fig. 5, in the implementation of diagram
In mode, choked flow piece 170 covers the surface of leaflet bracket 112 and skirt hanger 114.Specifically, choked flow piece 170 can also only cover
At least one of the inner surface of lid leaflet bracket 112 and outer surface.
The surface covering choked flow piece 170 of skirt hanger 114 can increase the contact surface of skirt hanger 114 Yu heart tissue
Product reduces footprint pressure, cardiac endothelial group can also be accelerated to be woven in climbing for 100 surface of heart valve and covered, to reduce heart valve
The thrombus source of film 100.In one of the embodiments, in order to accelerate 100 climbing for surface endothelial tissue of heart valve to cover, heart
The abiotic tissue surface of valve 100 is formed with Parylene layer.170 surface of choked flow piece is formed in one of the embodiments,
Parylene layer.Parylene layer with a thickness of 1 micron~5 microns.Preferably, the material of Parylene layer is c-type Parylene.
Referring to Fig. 3, leaflet 190 is located at the inside of leaflet bracket 112 and the choked flow with 112 inner surface of leaflet bracket
Part 170 is fixed.Certainly, in other embodiments, when 112 inner surface of leaflet bracket is not provided with choked flow piece 170, directly by valve
Leaf 190 and leaflet bracket 112 are affixed.Leaflet 190 is cut by animal pericardium.In the illustrated embodiment, leaflet
190 is substantially fan-shaped, shares three pieces, and the circumferential direction along leaflet bracket 112 is successively arranged.The close valve of adjacent two panels leaflet 190
One end of the inner surface of leaf bracket 112 is combined together to form valve angle 192, and the periphery of leaflet 190 is fixed on leaflet by suture
Bracket 112 and choked flow piece 170.Valve angle 192 is fixed to the connection of connecting rod 116 Yu leaflet bracket 112 in one of the embodiments,
Place, so as to increase the intensity of connection and guarantee the normal switch of leaflet 190.
Hydrogel layer (not shown) is additionally provided between choked flow piece 170 and bracket 110 in one of the embodiments,.Water
The material of gel layer is selected from least one of polyvinyl alcohol and polyurethane.Hydrogel layer passes through in one of the embodiments,
The mode of coating is layered in a side surface of the choked flow piece 170 close to bracket 110.Certainly, in other embodiments, hydrogel layer
It can also be fixed on by way of suture between choked flow piece 170 and bracket 110.When heart valve 100 is implanted into human heart 20
Afterwards, hydrogel water-swellable, by the corresponding position bulging of choked flow piece 170.If heart valve 100 is implanted into after human heart with two
There are gap between cusp tissue, then the hydrogel layer expanded makes the outside bulging of choked flow piece 170, so that gap be blocked, drops
The risk of low perivalvular leakage.
After heart valve 100 is implanted into human heart 20, the skirt hanger 114 of heart valve 100 consolidates heart valve 100
It is scheduled on mitral annulus, tether 150 is passed through to knot after heart 20 and gasket 160 and be fixed far from one end of connecting rod 116, can be to prevent
Only heart valve 100 shifts.114 warping part 1143 of skirt hanger avoids skirt 114 for the cutting effect of heart tissue and makes
At corrosion.
Above-mentioned heart valve 100 has the advantage that
1), 110 integral cutting of bracket forms, and can reduce into sheath power and Fracture Failure Risk, can be to avoid without welding
Structural strength caused by rosin joint etc. reduces；
2), the trough of the support portion 1141 of skirt hanger 114 and wave circle 1121 of the leaflet bracket 112 far from connecting rod 116 is solid
It connects, in this way, the axial dimension of the nearly one third of leaflet bracket 112 can be allowed to be located at a left side when heart valve 100 is implanted into heart 20
Atrium, to avoid causing left ventricular outflow tract narrow because of the excessive implantation left ventricle of leaflet bracket 112 or even block；
3), connector 130 opens up screw hole 1324 far from one end of connecting rod 116, so as to by rotation mode with it is hollow
Wirerope 30 is fixed or releases fixation, and in 100 implantation process of heart valve, hollow wirerope 30 can play push-and-pull heart valve
100 effect allows heart valve 100 to move in delivery sheath inner cavity, and when heart valve 100 is discharged from delivery sheath
Afterwards, heart valve 100 can also be retracted again by delivery sheath by hollow wirerope 30；
4), the angle [alpha] of connecting rod, which is 40 °~60 °, can control sheath power in lower range, make heart valve bracket defeated
It is preferably conveyed and is discharged during sending；And the intensity of leaflet bracket can reach maximum range, to be supplied to leaflet foot
Enough supports guarantee the fluid property of leaflet, reduce the risk that leaflet center is backflowed.
Please refer to Figure 11, the structure and the structure substantially phase of heart valve 100 of the heart valve 200 of another embodiment
Together, difference is: the leaflet bracket 212 of heart valve 200 includes multiple wave circles, the trough and wave crest of two adjacent wave circles
Quadrilateral structure is cooperatively formed, leaflet bracket 212 is made of the diamond of multiple array arrangements.
At this point, the trough of skirt hanger and the wave circle for being located at 212 one end of leaflet bracket is affixed.Certain leaflet bracket
212 can also have other many shapes, only need to control at this time the junction of skirt hanger and leaflet bracket 212 substantially with leaflet
The distance between 212 one end of bracket is the one third of the length of leaflet bracket 212.
Please refer to Figure 12, the structure and the structure substantially phase of heart valve 100 of the heart valve 300 of another embodiment
Together, difference is: tether 350 includes the monofilament that multiply is fixed together, and tether 350 is formed far from one end of connector 330
In petal-like anchor portion 354.Anchor portion 354 can be unfolded and fix in apex of the heart position, play and pull the work of heart valve 300
With preventing heart valve 300 from falling off in atrium sinistrum side.
It presses, be fastened, pyrocondensation it should be noted that the multiply monofilament of tether 350 can be fixed by gluing, steel bushing
The modes such as pipe fixation are fixed.
Certainly, in some embodiments, petal-like anchor portion 354 can cut to be formed by NiTi pipe, pass through later
Heat treatment shaping is at petal-shaped.
After the compression of anchor portion 354 size be less than hollow wirerope 30 internal diameter, thus anchor portion 354 can be contracted in it is hollow
In wirerope 30 and it can relatively move.
Figure 13 and Figure 14 is please referred to, the structure of the heart valve 500 of another embodiment and the structure of heart valve 100 are big
Cause identical, difference is: connection cover 534 include connection sleeve 5343 and be formed in connection sleeve 5343 one end spherical crown
5344, connection sleeve 5343 is sleeved and fixed with plug socket 532, and limit hole 5342 is along the axially extending of the connection sleeve 5343
Strip-shaped hole.
In the illustrated embodiment, plug socket 532 has plug division 5326, and plug division 5326 is contained in connection sleeve
5343 and the two by being welded and fixed.Limit hole 5342 extends to spherical crown far from one end of spherical crown 5344 from connection sleeve 5343
5344 middle part.To which when connecting rod is connected to connection cover 534, the angle of connecting rod can carry out small angle in limit hole 5342
The deflection of degree, when heart valve is in compressive state and non-compressed state, connecting rod can adapt to heart valve by angle change
The different conditions of film.
In the illustrated embodiment, connector 530 further includes baffle 536.Baffle 536 is contained in connection sleeve 5343
It is interior, and it is located at plug division 5326 close to one end of spherical crown 5344.The middle part of baffle 536 is offered corresponding to 5324 through-hole of screw hole
5362.The blocking portion 552 of one end of tether 550 is spherical shape, and diameter is greater than the diameter of through-hole 5362.Blocking portion 552 is located at gear
Side of the piece 536 far from plug division 5326 and support baffle 536.
Please refer to Figure 15, the structure and the structure substantially phase of heart valve 100 of the heart valve 600 of another embodiment
Together, difference is: between the choked flow piece 670 and skirt hanger 614 of a side surface of the skirt hanger 614 far from second end
It is formed with gap.
In the illustrated embodiment, choked flow piece 670 is knitted polyester cloth, and choked flow piece 670 wraps up and is sewn to skirt branch
The support portion 6141 of the surface of frame 614 and leaflet bracket 612, choked flow piece 670 and skirt hanger 614 is far from the surface of connecting rod 616
It is formed with gap.Specifically, one end of choked flow piece 670 is fitted in the interior table of leaflet bracket 612 from the second end of leaflet bracket 612
Face covers to first end and pulls to the warping part of skirt hanger 614 from first end along radial, and is bonded skirt hanger 614 and leans on
The surface of nearly connecting rod 616 is covered to the outer surface of 612 second end of leaflet bracket, and the both ends of choked flow piece 670 are in leaflet bracket 612
Second end is fixed together by suture.Preferably, choked flow piece 670 correspond to support portion 6141 part height substantially with
The end face of the first end of leaflet bracket 612 is concordant.
The choked flow piece 670 of a side surface of the skirt hanger 614 far from connecting rod 616 is not bonded with the surface of skirt hanger 614
Can one end to avoid leaflet bracket 612 far from connecting rod it is prominent with respect to the support portion 6141 of skirt hanger 614 and cause blood flow disorderly
Disorderly.Preferably, knitted polyester cloth is less than thrombosed size far from the pore-size of 616 side of connecting rod in support portion, guarantees
It will not run out of, prevent due to thrombus from cavity in the thrombus that knitted polyester cloth is formed in the cavity that skirt hanger 614 is formed
Caused by various complication.
Please refer to Figure 16 and Figure 17, the structure of the structure of another embodiment heart valve 700 and heart valve 600 is substantially
Identical, difference is: the outer profile of support portion 7141 is class D-shaped.
Herein, it is also assumed that being orthographic projection of the support portion 7141 in the plane of the axis perpendicular to leaflet bracket 712
Outer profile is class D-shaped.Certainly it should be noted that in some embodiments, support portion 7141 is perpendicular to leaflet bracket 712
The orthographic projection of the plane of axis is also possible to discontinuous, and outer profile refers to obtaining after being fitted orthographic projection curve at this time
Smooth curve.In some embodiments, 7141 surface of support portion is covered with choked flow piece, then outer profile refers to that surface is covered
It is stamped the orthographic projection of the support portion 7141 of the skirt hanger 714 of choked flow piece in the plane of the axis perpendicular to leaflet bracket 712
Outer profile.
Because the profile of mitral annulus accompanying by human heart mitral valve is exactly class D-shaped, and skirt hanger 714
Support portion 7141 effect be exactly heart valve 700 is fixed on mitral annulus, therefore outer profile be class D-shaped support
Portion 7141 can more preferably be bonded the shape of mitral annulus, to prevent perivalvular leakage.
The outer profile of support portion 7141 and two point accompanying by human heart mitral valve in one of the embodiments,
The profile of valve annulus is identical.
Orthographic projection of the support portion 7141 in the plane of the axis perpendicular to leaflet bracket 712 in one of the embodiments,
Outer profile include circumferentially distributed first area 7144 and the second area 7145 that is connect with first area 7144.It is illustrating
Embodiment in, angle beta that the vertical line of the axis at the both ends and leaflet bracket 712 of first area 7144 limits as 100 °~
140°.The one end (i.e. the width of support portion 7141) of support portion 7141 far from leaflet bracket 712 in first area 7144
The distance between leaflet bracket 712 be less than one end far from leaflet bracket 712 of support portion 7141 for being located in second area with
The distance between leaflet bracket 712.Preferably, the width of the support portion 7141 in first area 7144 is 2~4mm.Position
It is minimum when the width of the support portion 7141 in first area 7144 is in the midline position of first area 7144, and gradually to both ends
Increase.The one end of support portion 7141 far from leaflet bracket 714 in second area 7145 and between leaflet bracket 712 away from
It is 2mm~6mm from being equal, that is, the width for being located at the support portion 7141 in second area 7145 is 2mm~6mm.Second area
The angle that the vertical line of 7145 both ends and the axis of leaflet bracket 712 limits is 220 °~260 °.Specific in the present embodiment, position
In width of the support portion 7141 at the midline position of first area 7144 in first area 7144 for positioned at second area
The 50% of the width of support portion 7141 in 7145.
Figure 18 is please referred to, in a wherein embodiment, leaflet 790 shares three pieces, and leaflet is arrived at one of valve angle 792
Angle defined by the vertical line of the vertical line of the axis of bracket 712 and the center of first area 7144 to the axis of leaflet bracket 712
γ is 0 °~30 °.It is furthermore preferred that one of valve angle 792 corresponds to the center of first area 7144, i.e., one of valve angle
792 and first area 7144 center defined by straight line it is vertical with the axis of leaflet bracket 712, at this time γ be 0 °.When first
When the radial pressure that region 7144 generates it by the heart tissue of mitral annulus aortic root side, leaflet bracket 712
Respective side can occur to deform accordingly, and this deformation will lead to the distance between valve angle 792 and change, and cause leaflet
790 opening and closing functions are limited, ultimately form 790 incompetence center reflux of leaflet or opening is narrow.One of valve angle 792 and valve
It is pressed from both sides defined by the vertical line of the axis at the center and leaflet bracket 712 of the vertical line and first area 7144 of the axis of leaf bracket 712
Angle γ is 0 °~30 °, influences to be preferably minimized caused by capable of deforming leaflet 790.
Figure 19 is please referred to, the structure of another embodiment heart valve 800 is roughly the same with the structure of heart valve 700,
Its difference is: skirt hanger is provided with locating piece 8147.
The center that locating piece 8147 corresponds to first area in one of the embodiments, will wherein when installing leaflet
Defined by the vertical line of the axis at the center and leaflet bracket of the vertical line and first area of the axis of one valve angle and leaflet bracket
Angle γ is 0 °~30 °, when discharging heart valve, can adjust valvular position by locating piece 8147, so that should
Valve angle is located at the center of mitral anterior lobe.
Skirt hanger is additionally provided with auxiliary member 8148 in one of the embodiments, to facilitate in release to locating piece
8147 are positioned.There are two auxiliary member 8148 is total, it is located at the two sides of locating piece 8147, and locating piece 8147 and auxiliary member
8148 shape is different.In the illustrated embodiment, locating piece 8147 is " 8 " shape, and auxiliary member 8148 is circle.
Preferably, each auxiliary member 8148 arrives the vertical line of the axis of leaflet bracket 712 and the center of first area 7144
Angle defined by vertical line to the axis of leaflet bracket 712 is 30 °.
Leaflet bracket 712 is additionally provided with valve angle mounting hole 8189 in one of the embodiments,.Preferably, valve angle mounting hole
8189 altogether there are three, one of valve angle mounting hole 8189 correspond to locating piece 8147.Correspond to herein and means that valve angle is pacified
The vertical line for filling the axis that leaflet bracket 712 is arrived in hole 8189 arrives the vertical line of leaflet bracket perpendicular to leaflet bracket with locating piece 8147
Projection in the plane of axis overlaps.
In the present embodiment, locating piece 8147 and auxiliary positioning part 8148 be on skirt hanger by forming mounting hole, then
By in mounting hole the developing materials such as mosaic gold, platinum or tantalum formed.The shape of locating piece 8147 is not limited to " 8 " shape, may be used also
Thinking round, rectangular or polygon etc., other are easy the shape observed under X-ray, as long as locating piece 8147 and auxiliary can be distinguished
Assistant piece 8148.
It will also be appreciated that locating piece 8147 and auxiliary positioning part 8148 may be arranged as other development structures.Example
Such as, locating piece 8147 and auxiliary positioning part 8148 can also be the development coating coated in choked flow piece corresponding position.
Figure 20 is please referred to, the structure of another embodiment heart valve 900 is roughly the same with the structure of heart valve 100,
Its difference is: the connecting rod 916 of heart valve 900 is arc.
In the illustrated embodiment, connecting rod 916 extends from leaflet bracket 912 to connector 930, and is recessed inwardly.When
So in other embodiments, connecting rod 916 extends from leaflet bracket 912 to connector 930, and protrudes outward.
The angle of connecting rod 916 refers to the fixed point and connecting rod 916 and connector 930 of connecting rod 916 and leaflet bracket 912
The angle of the axis of the determined straight line of fixed point and leaflet bracket 912.
Figure 21 is please referred to, the structure of another embodiment heart valve 1000 is roughly the same with the structure of heart valve 100,
Its difference is: the connecting rod 1016 of heart valve 1000 is S type.
In the illustrated embodiment, connecting rod 1016 extends from leaflet bracket 1012 to connector 1030, and close to leaflet
The part of bracket 1012 protrudes outward, and the part close to connector 1030 is recessed inwardly.Certainly in other embodiments, connecting rod
1016 are recessed inwardly close to the part of leaflet bracket 1012, and the part for closing on connector 1030 protrudes outward.
The angle of connecting rod 1016 refers to the fixed point and connecting rod 1016 and connector of connecting rod 1016 and leaflet bracket 1012
The angle of the axis of the determined straight line of 1030 fixed point and leaflet bracket 1012.
Figure 22 is please referred to, the structure of another embodiment heart valve 1100 is roughly the same with the structure of heart valve 100,
Its difference is: the skirt hanger 1114 of heart valve 1100 is affixed close to one end of connecting rod 1116 with leaflet bracket 1112.
It is understood that in some embodiments, skirt hanger 1114 also can be omitted.
Figure 23 is please referred to, the structure of another embodiment heart valve 1200 is roughly the same with the structure of heart valve 100,
Its difference is: leaflet bracket 1212 includes sequentially connected proximal support portion 12121, distal end support portion 12123 and interconnecting piece
12125。
Proximal support portion 12121 is substantially cylindrical.Interconnecting piece 12125 be it is horn-like, the osculum end of interconnecting piece 12125 with
Proximal support portion 12121 connects, and proximal support portion 12121 and interconnecting piece 12125 are coaxially disposed.Distal end support portion 12123 is big
It causes to be cylinder-shaped, be connect with the big opening end of interconnecting piece 12125, and coaxially set with proximal support portion 12121 and interconnecting piece 12125
It sets.
In the illustrated embodiment, the one end of connecting rod 1216 from distal end support portion 12123 far from interconnecting piece 12125 is to even
Fitting 1230 extends, and connecting rod 1216 is straight-bar.Certainly, in other embodiments, connecting rod 1316 can also for S type, arc or other
Irregular shape.
Please refer to Figure 24, the structure and the structure substantially phase of heart valve 100 of the heart valve 1300 of another embodiment
Together, difference is: the surface of skirt hanger and leaflet bracket is covered with knitted polyester cloth as choked flow piece 1370.
Knitted polyester cloth can increase skirt hanger and leaflet bracket choked flow as choked flow piece 1370, reduce heart
Valve 1300 is implanted into the risk of generation perivalvular leakage after human heart.Meanwhile the surface roughness of knitted polyester cloth is larger, heart valve
The circumferential frictional force of film 1300 is big, convenient for fixing.Certainly, in other embodiments, as long as covering skirt hanger outer surface and skirt
The part of outer surface of second end of the junction of bracket and leaflet bracket to leaflet bracket is resistance polyester fiber knitting fabric, other portions
Divide to be traditional covering materials such as PTFE, PET, PU, casing or animal packet.
In the illustrated embodiment, choked flow piece 1370 is pressed into leaflet bracket close to one end of connecting rod 1316.In diagram
In embodiment, choked flow piece 1370 is pressed into leaflet bracket in the wave circle 13121 of second end close to one end of connecting rod 1316,
That is, leaflet bracket close to the wave circle 13121 of second end be located at the outside of choked flow piece 1370 with by choked flow piece 1370 close to connecting rod
1316 one end indentation leaflet bracket so as to avoid heart valve 1300 when entering sheath caused sheath to outer layer choked flow piece
1370 destruction can protect choked flow piece 1370 not to be destroyed.
Choked flow piece 1370 is fixed close to one end of connecting rod 1316 by suture.
Knitted polyester cloth has radially variable as choked flow piece 1370, so different radial dimension of brackets can be by same
One choked flow piece 1370 package, such as skirt hanger and leaflet bracket can be wrapped up by same choked flow piece 1370, pass through radial pressure
Power fixes choked flow piece 1370.
It is appreciated that knitted polyester cloth can increase skirt hanger and leaflet bracket choked flow, there is no need to use
Other choked flow materials.In other embodiments, choked flow piece 1370 or bilayer or multilayer structure, such as in other implementations
In example, in traditional covering materials such as the inside of knitted polyester cloth covering PTFE, PET, PU, casing or animal packets.
Please refer to Figure 25, the structure and the structure substantially phase of heart valve 100 of the heart valve 1400 of another embodiment
Together, difference is: choked flow piece 1470 is close to the profile of one end of the second end of leaflet bracket and the second end of leaflet bracket
Profile is identical.
In the illustrated embodiment, wave circle 14121 is located at leaflet bracket close to one end of connecting rod 1416, and and connecting rod
1416 is affixed, and profile, that is, wave circle 14121 profile of the second end of leaflet bracket is zigzag, and choked flow piece 1470 is close to leaflet branch
The profile of one end of the second end of frame is zigzag and identical as the profile of the second end of leaflet bracket, and choked flow piece 1470 is close to valve
One end of the second end of leaf bracket is fixed by suture and the suture of wave circle 14121.
Certainly, in other embodiments, the second end of leaflet bracket is not zigzag, corresponding at this time to change choked flow piece
1470 close to one end of the second end of leaflet bracket shape, as long as both making profile identical, so that it may prevent choked flow piece
1470 is prominent when taking in sheath.
Please refer to Figure 26, the structure and the structure substantially phase of heart valve 100 of the heart valve 1500 of another embodiment
Together, difference is: choked flow piece 2570 includes the first choked flow film 1571 and the second choked flow film 1572, the covering of the first choked flow film 1571
The inner surface of leaflet bracket 1512, the second choked flow film 1572 cover the outer surface of leaflet bracket 1512 and the table of skirt hanger 1514
Face.
In the illustrated embodiment, the one end of the first choked flow film 1571 from leaflet bracket 1512 far from connecting rod 1516 is along valve
The inner surface of leaf bracket 1512 extends to leaflet bracket 1512 close to one end of connecting rod 1516.Second choked flow film 1572 is from leaflet branch
The outer surface package leaflet bracket 1512 and skirt hanger 1514 of the one end of frame 1512 far from connecting rod 1516, extend to leaflet bracket
1512 close to one end of connecting rod 1516.
In the illustrated embodiment, the one end of the second choked flow film 1572 far from connecting rod 1516 is remote with the first choked flow film 1571
One end suture from connecting rod 1516, the second choked flow film 1572 is close to one end of connecting rod 1516 and the first choked flow film 1571 close to connecting rod
1516 one end suture.
In the illustrated embodiment, the second choked flow film 1572 of a side surface of the skirt hanger 1514 far from connecting rod 1516
Gap is formed between skirt hanger 1514.Preferably, the second choked flow film 1572 corresponds to the height of the part of support portion 15141
The one end spent substantially with leaflet bracket 1512 far from connecting rod 1516 is concordant.
In the illustrated embodiment, the first choked flow film 1571 and the second choked flow film 1572 are fiber cloth, such as are knitted
Woven dacron or plain weave woven fabric, and the fiber line count of the first choked flow film 1571 is greater than the fiber line volume of the second choked flow film 1572
Density is knitted, the number of the fiber line of the first choked flow film 1571 is greater than the number of the fiber line of the second choked flow film 1572, so that first
The coefficient of friction of choked flow film 1571 is hindered less than the coefficient of friction of the second choked flow film 1572 with improving valvular circumferential friction
Power is convenient for valvular fixation.Certainly, in other embodiments, the first choked flow film 1571 can also for PTFE, PET,
Traditional covering materials such as PU, casing or animal packet.
Please refer to Figure 27, the structure and the structure substantially phase of heart valve 100 of the heart valve 1600 of another embodiment
Together, difference is: choked flow piece 1670 includes the first choked flow film 1671 and the second choked flow film 1672, the covering of the first choked flow film 1671
The surface of the one end of inner surface and skirt hanger 1614 far from connecting rod 1616 of leaflet bracket 1612, the covering of the second choked flow film 1672
The surface of the outer surface of leaflet bracket 1612 and skirt hanger 1614 close to one end of connecting rod 1616.
In the illustrated embodiment, one end of the first choked flow film 1671 is located at leaflet bracket 1612 and skirt hanger 1614
Junction, one end of the second choked flow film 1672 also is located at the junction of leaflet bracket 1612 Yu skirt hanger 1614.Second resistance
The other end indentation leaflet bracket 1612 of film 1672 is flowed in the wave circle of connecting rod 1616.
In the illustrated embodiment, the first choked flow film 1671 and the second choked flow film 1672 are fiber cloth, such as are knitted
Woven dacron or plain weave woven fabric, and the fiber line count of the first choked flow film 1671 is greater than the fiber line volume of the second choked flow film 1672
Density is knitted, the number of the fiber line of the first choked flow film 1671 is greater than the number of the fiber line of the second choked flow film 1672, so that first
The coefficient of friction of choked flow film 1671 is hindered less than the coefficient of friction of the second choked flow film 1672 with improving valvular circumferential friction
Power is convenient for valvular fixation.Certainly, in other embodiments, the first choked flow film 1671 can also be PET, PU, casing
Or the covering material that animal packet etc. is traditional.
It should be strongly noted that the technical solution of above-mentioned 15 embodiments can carry out without conflicting with each other
Combined application, such as D type support portion can be combined with the relevant programme of knitted polyester cloth, and D type support portion can be with difference
The connecting rod of shape is combined or the scheme of connecting rod of different shapes and knitted polyester cloth is combined, and is possible
It is understood.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of heart valve, including bracket and connector, which is characterized in that the bracket includes leaflet bracket and connecting rod, institute
Leaflet bracket is stated with first end and the second end opposite with first end, one end of the connecting rod and the second of the leaflet bracket
Hold affixed, the connecting rod is multiple and be uniformly distributed along the second end, the multiple one end of the connecting rod far from the second end
It is connected to the connector, the connection of the connecting rod and the tie point and the connecting rod and the connector of the leaflet bracket
The angle of the axis of the determined straight line of point and the leaflet bracket is the angle of the connecting rod, the angle of the connecting rod for 40 °~
60°。
2. heart valve according to claim 1, which is characterized in that the connecting rod and the leaflet bracket are by same tubing
It cuts.
3. heart valve according to claim 1, which is characterized in that the connecting rod includes proximal link, leaflet bracket company
Bar and connector, the leaflet rack rod include at least two struts that one end of proximally connecting rod extends, and the strut is separate
One end of the proximal link and the leaflet bracket are affixed, and the connector is set to the proximal link far from the leaflet bracket
One end of connecting rod, the connector are connect with the connector.
4. heart valve according to claim 3, which is characterized in that the leaflet bracket includes multiple axially spaced sets
The wave circle set, the leaflet bracket are connect close to each trough of the wave circle of the second end with a strut.
5. heart valve according to claim 1, which is characterized in that the connecting rod is straight-bar, and the connecting rod is from the valve
The second end linear extension of leaf bracket is to the connector.
6. heart valve according to claim 1, which is characterized in that the connecting rod is arc, and the connecting rod is from leaflet branch
The second end of frame extends and is recessed inwardly to connector.
7. heart valve according to claim 1, which is characterized in that the connecting rod is S type, and the connecting rod is from leaflet bracket
Second end extend to connector, and the connecting rod is protruded outward close to the part of the leaflet bracket, and the connecting rod is close to institute
The part for stating connector is recessed inwardly.
8. heart valve according to claim 1, which is characterized in that the bracket further includes fixing with the leaflet bracket
Skirt hanger, the skirt hanger is from leaflet bracket the extending radially outwardly along the leaflet bracket.
9. heart valve according to claim 8, which is characterized in that the leaflet bracket and the skirt hanger pass through together
One tubing is cut.
10. heart valve according to claim 9, which is characterized in that the heart valve further includes choked flow piece, the resistance
Stream part covers the surface of the leaflet bracket and the skirt hanger.
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| CN201710872451.8A CN109549753B (en) | 2017-09-25 | 2017-09-25 | Heart valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710872451.8A CN109549753B (en) | 2017-09-25 | 2017-09-25 | Heart valve |
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| CN109549753B CN109549753B (en) | 2021-11-02 |
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| CN110974485A (en) * | 2019-11-07 | 2020-04-10 | 先健科技(深圳)有限公司 | Heart valve |
| WO2020233598A1 (en) * | 2019-05-21 | 2020-11-26 | 先健科技(深圳)有限公司 | Tether for heart valve, and heart valve |
| WO2021121292A1 (en) * | 2019-12-19 | 2021-06-24 | 先健科技(深圳)有限公司 | Heart valve |
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| Publication number | Publication date |
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| CN109549753B (en) | 2021-11-02 |
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