CN208808749U - Artificial valve and prosthetic valve apparatus - Google Patents

Abstract

The utility model discloses a kind of artificial valve and prosthetic valve apparatus, the artificial valve includes sealing film and leaflet, the sealing film is cylindrical in shape, the both ends of the sealing film, which are respectively provided with outside one, to be flared, it is tooth-shape structure at the port of the outer flaring, the middle part of the sealing film is straight, the internal diameter of the outer flaring is greater than the internal diameter in the middle part of the sealing film, the sealing film is sutured by least three sealing film units, the leaflet is that at least three leaflet units suture the ring structure connected into, and the leaflet is set to the middle part of the sealing film.The prosthetic valve apparatus includes above-mentioned artificial valve and valve frame.Its purpose is to provide it is a kind of improve pulmonary regurgitation artificial valve and prosthetic valve apparatus, improve the safety and validity used.

Description

Artificial valve and prosthetic valve apparatus

Technical field

The utility model relates to the heart valve technologies of medical instruments field, belong to intervention therapeutic apparatus field, especially relate to And a kind of artificial valve and prosthetic valve apparatus.

Background technique

Congenital heart disease is that congenital cardiovascular system caused by fetal period heart and angiodysplasia is abnormal Shape is children's period most common heart disease.According to statistics, in every 1000 newborns, 6~7 have Congenital malformation of heart.According to Demographer's estimation, China's about 1 million people suffer from congenital heart disease, about increase 200,000 children with CHD newly every year, wherein complexity Congenital heart disease accounts for about 20%.Many complex congenital heart lesions seriously involve right ventricular outflow, and after surgery efferent tract Reconstruction Pulmonary regurgitation or restenosis frequent occurrence need to rebuild right ventricular outflow again.

It can not only be corrected through conduit cusps of pulmonary valve displacement technique narrow, valvular regurgitation can also be handled, the technology is quiet through periphery Arteries and veins approach will manually band valve bracket be placed at Pulmonary autograft by conduit, instead of having lost the cusps of pulmonary valve of function, To reach therapeutic purposes.

The reason of pulmonary regurgitaion is as follows: 1. congenital pulmonary is completely lopsided: can be missing, unilobar lung artery completely Valve and other deformities, are common in patients with tetralogy of Fallot.2. Marfan syndrome: lesion mainly involves aorta petal and bicuspid valve, But have been reported that about 26.9% patient's lesion involves pulmonary valve and has pulmonary regurgitation.3. cardiac tumor: mamillary is fine It ties up Elastoma and pulmonary valve lesion is in close relations, it is seen that tumour in multiple leaflets and is attached to the internal membrane of heart by the leaf base of a fruit. Generally it is common in aorta petal or pulmonary valve ventricular side.Adhere to gross tumor volume to increase, it is anti-to may cause middle severe pulmonary valve Stream, companion or not companion's pulmonary stenosis.4. pulmonary valve annulus is expanded: as long-term pulmonary hypertension can lead to pulmonary artery and annulus Expansion, so as to cause pulmonary regurgitation.Right ventricular outflow (RVOT) is narrow, obstruction patient, may occur in which post-stenotic dilatation and Expand annulus, so as to cause pulmonary regurgitaion.5. iatrogenic: it is clinically most clinical meaning, the most common factor at present, It is also the current main suitable crowd of percutaneous pulmonary valve implantation (PPVI).At home, tetralogy of Fallot etc. has pulmonary artery During the narrow patient's row operative correction of valve generally across the valve sticking patch art of row RVOT (RVOT, pulmonary artery it is longitudinally slit after again plus mend Piece is to expand official jargon internal diameter) to release pulmonary stenosis, but pulmonary valve annulus can be made to expand, leaflet Poor fitness is led Apparent pulmonary artery is caused to shunt；And external many Heart centers then can be placed in band valve artificial blood vessel in ROVT, although in a short time Pulmonary regurgitaion is not had, but after prolonged application, artificial blood vessel will appear calcification and lead to outflow obstruction, and its biovalve It will appear functional deterioration and lead to valvular inadequacy or narrow, this kind of crowd is that current PPVI mainly applies crowd.

In October, 2000, the team of Bonhoeffer report it is the first be applied to clinical PPVI, they to one 12 years old There is patient's successful implementation of pulmonary stenosis merging reflux PPVI operation after receiving tetralogy of Fallot prosthetic.Then, The technology is used for more patients.2005, Bonhoeffer was reported in the TCT session to 100 16-35 years old lungs The case where congenital disorders patient row PPTV such as arterial valve incompetence or RVOT obstruction, follow-up 0.5-5 is without death, the postoperative right side Ventricular pressure is decreased obviously, and exercise tolerance significantly improves.

It is relative to the advantages of surgery open chest surgery percutaneous pulmonary valved prosthesis art: (1) does not need long-term anticoagulant；(2) Close to normal Hemodynamics after displacement；(3) chronic tissue can be maintained upper and the integrality of function；(4) wound is small, injures Gently.

In percutaneous heart valve displacement technique there are two types of common heart valve prosthesises: a kind of for Medtronic company Melody balloon expandable intervenes valve.Melody device is to be sewed with cloverleaf ox on platinum-iridium balloon-expandable alloy bracket Jugular vein valve.The internal diameter variation range that valve is implanted into when expansion is larger, is 10~22mm, this is attributed to the fact that the made leaflet of venous valve Favorable elasticity and biggish leaflet faying face.Stock size is 18~22mm.Another kind is the SAPIEN ball of Edwards company Capsule expansion intervention valve.The bracket of SAPIEN valve uses stainless steel for material, and uses durable bovine pericardium as leaflet material Expect, while sealing cuff also to become the higher generation for having reduced perivalvular leakage.The valve has the models such as 23mm, 26mm at present.They Structure be all straight barrel type, the pulmonary valve ring diameter used is in 16~22mm, this expands pulmonary artery annulus and main lung is dynamic The patient of arteries and veins deformity is not appropriate for.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of artificial valve for improving pulmonary regurgitation and manually Valve device improves the safety and validity used.

Artificial valve in the utility model, including sealing film and leaflet, the sealing film are cylindrical in shape, the sealing film Both ends are respectively provided with outside one and are flared, and are tooth-shape structure at the port of the outer flaring, and the middle part of the sealing film is straight, institute State outer flaring internal diameter be greater than it is described sealing film in the middle part of internal diameter, the sealing film by least three sealing film units suture and At the leaflet is that at least three leaflet units suture the ring structure connected into, and the leaflet is set in the sealing film Portion.

Artificial valve in the utility model, wherein inclination is set the upper and lower ends of the sealing film unit outward respectively It sets, the upper and lower ends of the sealing film unit are respectively equipped with reinforcing ear, and the ear of reinforcing constitutes the outer tooth being flared at port The middle part of shape structure, the sealing film unit is rectangle, and the two sides of the sealing film unit are joining edge, and the joining edge is width The groove-like side of 0.5~3 ㎜.

Artificial valve in the utility model, wherein the leaflet unit includes the upper rectangle being integrally formed and lower rectangle, The upper rectangle is connected by respective long side with the lower rectangle, and the long side length of the upper rectangle is greater than the lower rectangle Long side length, two angles far from the upper rectangle of the lower rectangle remove and rounded corner, and two of the upper rectangle are short It is suture ear at side, the edge of the lower rectangle is fixed edge, and the width of the fixed edge is 0.5~3 ㎜.

Artificial valve in the utility model, wherein circumference side of the leaflet unit of the leaflet in the middle part of the sealing film It is evenly arranged upwards.

Artificial valve in the utility model, wherein the suture way of two neighboring sealing film unit joining edge is spiral seam The rack gear suture way or matrix suture way or right-angled intersection suture way that conjunction mode or two sides alternately pass through.

Artificial valve in the utility model, wherein the suture way of two neighboring sealing film unit joining edge is beaten for lasso The mode of knot, the distance between two neighboring knotting node are 1~4 ㎜.

Artificial valve in the utility model, wherein suture way of the leaflet on sealing film is solid along leaflet unit The rack gear suture way or spiral suture way or matrix suture side that deckle alternately passes through between sealing film and leaflet two sides Formula or zigzag suture way.

Artificial valve in the utility model, wherein suture way of the leaflet on sealing film is along leaflet fixed edge Alternately passing through between sealing film and leaflet two sides keeps each node T-shaped, and the distance between two neighboring node is 1~4 ㎜.

Prosthetic valve apparatus in the utility model, including artificial valve and valve frame, the valve frame be both ends in lotus shape, Intermediate network straight, the valve frame are followed successively by upper, middle and lower from top to bottom, and the upper and lower part is in The lotus shape, the middle part are in the straight-tube shape, and each portion is connected with each other by multiple rhomboids, the artificial valve Outer flaring for above-mentioned artificial valve, the sealing film both ends matches with the valve frame in the both ends of lotus shape respectively, institute It states and matches in the middle part of the middle part and the valve frame of sealing film, the sealing film is sutured on the inner wall of the valve frame.

Prosthetic valve apparatus in the utility model, wherein between the top and middle part of the valve frame and middle part and lower part Between by rigid vertical bar connection, connect rigid vertical bar being arranged circumferentially along valve frame on top and middle part, connection middle part It is arranged in correspondingly with the rigid vertical bar of lower part between the rhomboid at middle part and the rhomboid of lower part, the two of the sealing film End is sewn to the both ends of the valve frame, suture side of the artificial valve on valve frame correspondingly in a manner of package respectively Formula is that upper and lower end parts are the mode that lasso knots, remaining position is the bar along the composition rhomboid of valve frame with stepped half The suture of circular pattern around rod, the distance of two neighboring semi-ring are 1~5 ㎜.

Artificial valve difference from prior art in the utility model is: leaflet is sewn to by the artificial valve Both ends are in the inside of the sealing film of bowl-mouth shape, and the highest point of leaflet is lower than the upper edge of sealing film, so that leaflet is complete Be wrapped in sealing film among, leaflet closure when, artificial valve upper end reflux blood be completely limited in seal The leaflet of film and closed state is formed by space, improves pulmonary regurgitation, and the outside lotus shape structure at both ends (is in The outer flaring of tooth-shape structure) can be suitable for pulmonary artery expand or deformity lesion.The leaflet structure of the artificial valve meets Fluid dynamics structure, and the suture of artificial valve is solid and reliable, improves safety in utilization and validity.

In order to improve the deficiencies in the prior art, it is simple that the utility model additionally provides a kind of structure, be attached to artificial valve Suture securely, can be reduced the prosthetic valve apparatus of blood reflux.

The utility model is described in further detail with reference to the accompanying drawing.

Detailed description of the invention

Fig. 1 is the sealing film unit structural schematic diagram in the utility model；

Fig. 2 is the seal diaphragm structure schematic diagram in the utility model；

Fig. 3 is the leaflet cellular construction schematic diagram in the utility model；

Fig. 4 is the leaflet structural schematic diagram in the utility model；

Fig. 5 is the prosthetic valve structures schematic diagram in the utility model；

Fig. 6 is prosthetic valve apparatus's structural schematic diagram in the utility model；

Fig. 7 is the lasso knotting suture way schematic diagram in the utility model；

Fig. 8 is that the spiral in the utility model sutures schematic diagram；

Fig. 9 is the rack-shaped suture way schematic diagram in the utility model；

Figure 10 is the matrix suture way schematic diagram in the utility model；

Figure 11 is the right-angled intersection suture way schematic diagram in the utility model；

Figure 12 is that the zigzag in the utility model sutures schematic diagram；

Figure 13 is the T shape suture way schematic diagram in the utility model；

Figure 14 is the stepped semi-circular suture way schematic diagram in the utility model.

Wherein, each appended drawing reference in figure:

100- seals film unit, and 101- seals the joining edge of film unit, and 102- seals the reinforcing ear of film unit, 103- and branch The matching sideline of frame, 110- seal film, and 111- seals film upper edge, and 112- seals film lower edge, and 113- seals film splicing line, 114- seals the boundary line in the middle part of film with both ends, 200- leaflet unit, and 201- sutures ear, 202- leaflet unit fixed edge, 203- Leaflet unit dissociates side, 210- leaflet, and 211- sutures ear splice sections, 212- leaflet fixed edge, 300- artificial valve, 301- leaflet Suture path in sealing film, 400- prosthetic valve apparatus, 500- valve frame.

Specific embodiment

As shown in figure 5, and combining shown in Fig. 1-4, the artificial valve in the utility model, including sealing film 110 and leaflet 210, the sealing film 110 is cylindrical in shape, and the both ends of the sealing film 110, which are respectively provided with outside one, to be flared, the port of the outer flaring Place is tooth-shape structure, it can be seen that, the both ends of sealing film 110 are in lotus shape, and the middle part of the sealing film 110 is straight, The internal diameter of the outer flaring is greater than the internal diameter at 110 middle part of sealing film, and the sealing film 110 is by least three sealing film units 100 suture, and the leaflet 210 is that at least three leaflet units 200 suture the ring structure connected into, the leaflet 210 Set on the middle part of the sealing film 110.

As shown in Fig. 2, the artificial valve in the utility model, wherein the upper and lower ends difference of the sealing film unit 100 It is obliquely installed outward, the upper and lower ends of the sealing film unit 100, which are respectively equipped with, reinforces ear 102, and the reinforcing ear 102 is constituted Tooth-shape structure at the outer flaring port, it can be seen that, sealing film unit 100 is the outside crown-shaped in both ends, the sealing The middle part of film unit 100 is rectangle, and the two sides of the sealing film unit 100 are joining edge 101, and the joining edge 101 is wide by 0.5 The groove-like side of~3 ㎜.

As shown in figure 3, the artificial valve in the utility model, wherein the leaflet unit 200 is upper including being integrally formed Rectangle and lower rectangle, the upper rectangle are connected by respective long side with the lower rectangle, the long side length of the upper rectangle Greater than the long side length of the lower rectangle, two angles far from the upper rectangle of the lower rectangle remove and rounded corner, described It is suture ear 201 at two short sides of upper rectangle, the edge of the lower rectangle is fixed edge 202, the width of the fixed edge 202 Degree is 0.5~3 ㎜.

Artificial valve in the utility model, wherein the leaflet unit 200 of the leaflet 210 is in the sealing film 110 It is evenly arranged on the circumferencial direction in portion.

As illustrated in figs. 8-11, the artificial valve in the utility model, wherein two neighboring sealing film unit joining edge 101 Suture way is the rack gear suture way that spiral suture way or two sides alternately pass through or matrix suture way or cross Intersect suture way.

As shown in fig. 7, the artificial valve in the utility model, wherein the seam of two neighboring sealing film unit joining edge 101 Conjunction mode is the mode that lasso knots, and the distance between two neighboring knotting node is 1~4 ㎜.

As shown in Fig. 8,9,10,12, artificial valve in the utility model, wherein the leaflet 210 is on sealing film 110 Suture way be along leaflet unit fixed edge 202 between sealing film 110 and 210 two sides of leaflet the rack gear suture side that alternately passes through Formula or spiral suture way or matrix suture way or zigzag suture way.

As shown in figure 13, the artificial valve in the utility model, wherein suture of the leaflet 210 on sealing film 110 Mode is to alternately pass through to keep each node T-shaped between sealing film 110 and 210 two sides of leaflet along leaflet fixed edge 202, adjacent The distance between two nodes are 1~4 ㎜, and above-mentioned suture way is T shape suture way.

As shown in fig. 6, the prosthetic valve apparatus 400 in the utility model, including artificial valve 300 and valve frame 500, it is described Valve frame 500 is both ends in lotus shape, intermediate network straight, the valve frame 500 be followed successively by from top to bottom top, in Portion and lower part, the upper and lower part are in the lotus shape, and the middle part is in the straight-tube shape, and each portion is by multiple rhomboids Be connected with each other, the artificial valve 300 be above-mentioned artificial valve, it is described sealing 110 both ends of film outer flaring respectively with The valve frame 500 matches in the both ends of lotus shape, and the middle part of the sealing film 110 and the middle part of the valve frame 500 match, The sealing film 110 is sutured on the inner wall of the valve frame 500.

Prosthetic valve apparatus 400 in the utility model, wherein between the top and middle part of the valve frame 500 and middle part It is connect by rigidity vertical bar between lower part, connects rigid vertical bar being arranged circumferentially along valve frame 500 on top and middle part, The rigid vertical bar of connection middle part and lower part is arranged in correspondingly between the rhomboid at middle part and the rhomboid of lower part, such as Fig. 6 It is shown, that is to say, that pass through a rigid vertical bar connection, the sealing film 110 between the rhomboid corresponding with lower part of middle part Both ends be sewn to the both ends of the valve frame 500 correspondingly in a manner of package respectively, the artificial valve 300 is in valve frame Suture way on 500 is that upper and lower end parts are the mode (as shown in Figure 7) that lasso knots, remaining position is along valve frame 500 Forming the bar of the rhomboid around rod suture (as shown in figure 14), the distance of two neighboring semi-ring in a manner of stepped semi-circular is 1~5 ㎜.

Leaflet 210 is sewn to both ends in the sealing film 110 of bowl-mouth shape by the artificial valve 300 in the utility model Portion, and the highest point of leaflet 210 is lower than the upper edge of sealing film 110, so that leaflet 210 is completely wrapped in sealing film Among 110, when leaflet 210 is closed, the blood of 300 upper end of artificial valve reflux has completely been limited in seal film 110 It is formed by space with the leaflet 210 of closed state, improves pulmonary regurgitation, the outside lotus shape structure at both ends is (i.e. In the outer flaring of tooth-shape structure) can be suitable for pulmonary artery expand or deformity lesion.The leaflet constructor of the artificial valve Fluid dynamics structure is closed, and the suture of artificial valve is solid and reliable, improves safety in utilization and validity.

As shown in fig. 6, in order to improve the deficiencies in the prior art, it is simple that the utility model additionally provides a kind of structure, appended The suture of band artificial valve securely, can be reduced the prosthetic valve apparatus 400 of blood reflux.

Sealing film 110 in the present embodiment is valve made of the joining edge 101 sealed on film unit as 3 sutures two-by-two Leaf 210 is formed by connecting by the suture of 3 leaflet units 200, seals the joining edge 101 of film unit from the upper end of sealing film unit 100 It is through to the lower end of sealing film unit 100, the middle part straight-tube shape of sealing film 110 is equipped with leaflet 210, and leaflet 210 is by leaflet list Suture ear 201 in member 200 sutures the ring structure connected into two-by-two, and suture path of the leaflet 210 on sealing film 110 is valve The fixed edge 202 of leaf unit, the suture ear 201 after leaflet unit 200 is connected are equal in the circumferencial direction for sealing 110 middle part of film Cloth.Sealing film 110 and the suture ear 201 of leaflet 210 are fixed on both ends in valve frame 500 straight among lotus shape On, valve frame 500 is network；Valve frame 500 is made of three parts from top to bottom, and each part is mutual by several rhomboids It is formed by connecting.Artificial valve 300 is sewn on matched valve frame 500, forms prosthetic valve apparatus 400.

Several footings (i.e. above-mentioned reinforcing ear 102), reinforcing portion parting is distributed in sealing 100 both ends of film unit Together in corresponding 500 both ends of valve frame.

The leaflet unit 200 is flowerpot shape.The fixed edge 202 is from 201 edge of suture ear of 200 one end of leaflet unit The suture ear 201 of lower end curve to the other end is formed by crescent side, fixed 0.5~3 ㎜ of hem width.

The leaflet unit 200 of the leaflet is uniformly distributed on the circumferencial direction of sealing 110 middle part straight-tube shape of film.

The suture way of two sealing film unit joining edges 101 is the mode or spiral suture way or two sides that lasso knots The rack gear suture way or matrix suture way or right-angled intersection suture way alternately passed through.

Preferably, the suture way of the two sealings film unit joining edge 101 is the mode that lasso knots, two neighboring to beat The distance of nodal point is 1~4mm.

The leaflet 210 sealing film 110 on suture way be along leaflet unit fixed edge 202 sealing film 110 with The rack gear suture way or spiral suture way that are alternately passed through between 210 two sides of leaflet or along fixed edge matrix suture way or sawtooth Shape suture way or T shape suture way.

Preferably, suture way of the leaflet 210 on sealing film 110 is along leaflet fixed edge 212 in sealing film 110 Alternately passing through between 210 two sides of leaflet keeps each node T-shaped, and the distance of two neighboring node is 1~4 ㎜.

The upper and lower part of the valve frame 500 is in outside lotus shape, and the middle part of the valve frame 500 is in a tubular form.

Three parts of the valve frame 500 are connected by rigid vertical bar, wherein the connection at the top and the middle part is non- One-to-one uniform distribution type connection, that is, connect rigid vertical bar being arranged circumferentially along valve frame 500 on top and middle part, middle part with The connection of lower part is one-to-one full connection, i.e. connection middle part and the rigid vertical bar of lower part is arranged in middle part correspondingly Between rhomboid and the rhomboid of lower part, as shown in Figure 6, that is to say, that logical between the rhomboid corresponding with lower part of middle part A rigid vertical bar connection is crossed, this structure helps to improve valve frame 500 in the compliance of releasing position.

The lotus shape at sealing 110 both ends of film and the lotus shape of 500 upper and lower part of valve frame match, and close 110 both ends of sealer are sewn on valve frame 500 correspondingly in a manner of wrapping up.

Suture way of the artificial valve 300 on valve frame 500 is that upper and lower end parts are the mode that lasso knots, remaining position It is set to the around rod suture in a manner of stepped semi-circular along all bars of valve frame 500, the distance of two neighboring semi-ring is 1~5 ㎜.

The utility model is further described with reference to the accompanying drawing.The utility model relates generally to a kind of artificial valve, The unique lotus shape structure in its both ends enable the utility model preferably be applied to pulmonary artery expand or deformity patient.Manually The upper end of valve is its blood efferent tract, and lower end is that its blood stream is taken part in Taoism.

The first embodiment: as shown in Figs. 1-2, the sealing film 110 in the present embodiment is led to by three pieces sealing film unit 100 The joining edge 101 for crossing to each other splices two-by-two to be sutured, due to sealing the crown-shaped structure at film unit both ends, so that after suture Entire sealing film shows the lotus shape at both ends and the straight structure of centre, and forms splicing line 113.Joining edge 101 is The groove-like structure to concave, sealing film lower edges 111,112 are tooth-shape structure.114 be sealing film straight-tube shape section and lotus flower The boundary line of shape section is equipped with leaflet 210 between two boundary lines 114.Footing on sealing film unit 100 reinforces ear 102 be to design to increase intensity when sealing film is sewn on valve frame and stability, and design has matching sideline with valve frame 103。

The mode for being sewed with lasso knotting or spiral suture way or two sides at joining edge between sealing film unit are handed over For across rack gear suture way or matrix suture way or right-angled intersection suture way, as shown in figs. 7-14.What lasso knotted Suture way is to thread a needle a little to make a call to a slip-knot and be held together two joining edges at each using a suture, and this mode makes The connection that must be sealed between film unit is more firm.Spiral suture way is that a suture is passed through two from the same direction always Joining edge, path substantially one are spiral-shaped.The rack gear suture way that two sides alternately passes through is suture successively from two sutures The exposure on side passes through.Matrix suture way is formed by rack gear suture way round trip.Right-angled intersection suture way is spiral shell Rotation suture way round trip is formed.Each of the above suture way is threaded a needle a little along the distance of joining edge in 1~4mm It is interior.

As in Figure 3-5, the leaflet 210 being located between sealing membrane junction line 114 is to pass through it by three pieces leaflet unit 200 On suture ear 201 suture be formed by connecting two-by-two, form three suture ear splice sections 211, and the fixed edge of three leaflet units It has been spliced to form leaflet fixed edge 212.Wherein suture ear splice sections 211 and leaflet fixed edge 212 are leaflet 210 in sealing film Control of the artificial valve to blood flow direction can be realized by the free side 203 of each leaflet unit in suture path 301 in 110. The suture way in suture path 301 has the rack gear suture way alternately passed through between two sides or spiral suture way or along fixed edge square Battle array suture way or zigzag suture way or T shape suture way, as shown in figs. 7-14.The rack gear suture alternately passed through between two sides Mode, spiral suture way, along fixed edge matrix suture way with sealing the suture way of film it is identical.Zigzag suture way is From being developed by matrix suture way, i.e., rotating the needle point is deviated alternatively up and down.T shape suture way is using a suture It alternately passes through and is formed between two sides.

As shown in figure 5, the leaflet 210 and sealing film upper end (the i.e. blood stream outlet of artificial valve that are sewn in sealing film 110 End) the good space of sealing performance is formd, it can effectively reduce perivalvular leakage and backflow.

Second of embodiment: as shown in fig. 6, artificial valve 300 is mounted on shape memory effect energy by the present embodiment Prosthetic valve apparatus 400 is made in the valve frame 500 voluntarily expanded, suture way of the artificial valve on valve frame is for upper and lower end parts The mode that lasso knots, for all bars along bracket, the around rod in a manner of stepped semi-circular is sutured (such as Figure 14 institute for remaining position Show), the distance of two neighboring semi-ring is 1~5 ㎜.Each bar of valve frame is stitched together with the sealing film of artificial valve. Artificial valve in the present embodiment is using the artificial valve in embodiment one.

Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines In range.

Claims (10)

1. a kind of artificial valve, it is characterised in that: it is cylindrical in shape including sealing film and leaflet, the sealing film, the sealing film Both ends are respectively provided with outside one and are flared, and are tooth-shape structure at the port of the outer flaring, and the middle part of the sealing film is straight, institute State outer flaring internal diameter be greater than it is described sealing film in the middle part of internal diameter, the sealing film by least three sealing film units suture and At the leaflet is that at least three leaflet units suture the ring structure connected into, and the leaflet is set in the sealing film Portion.

2. artificial valve according to claim 1, it is characterised in that: the upper and lower ends difference of the sealing film unit is outside Side is obliquely installed, and the upper and lower ends of the sealing film unit are respectively equipped with reinforcing ear, and the reinforcing ear constitutes the outer flared end The middle part of tooth-shape structure at mouthful, the sealing film unit is rectangle, and the two sides of the sealing film unit are joining edge, the seam Close the groove-like side of 0.5~3 ㎜ of Bian Weikuan.

3. artificial valve according to claim 2, it is characterised in that: the leaflet unit includes the upper rectangle being integrally formed With lower rectangle, the upper rectangle is connected by respective long side with the lower rectangle, and the long side length of the upper rectangle is greater than Two angles far from the upper rectangle of the long side length of the lower rectangle, the lower rectangle remove and rounded corner, the upper square It is suture ear at two short sides of shape, the edge of the lower rectangle is fixed edge, and the width of the fixed edge is 0.5~3 ㎜.

4. artificial valve according to claim 3, it is characterised in that: the leaflet unit of the leaflet is in the sealing film It is evenly arranged on the circumferencial direction in portion.

5. artificial valve according to claim 4, it is characterised in that: the suture side of two neighboring sealing film unit joining edge Formula is the rack gear suture way that spiral suture way or two sides alternately pass through or matrix suture way or right-angled intersection seam Conjunction mode.

6. artificial valve according to claim 4, it is characterised in that: the suture side of two neighboring sealing film unit joining edge Formula is the mode that lasso knots, and the distance between two neighboring knotting node is 1~4 ㎜.

7. artificial valve according to claim 5 or 6, it is characterised in that: suture way of the leaflet on sealing film For the rack gear suture way or spiral suture way alternately passed through between sealing film and leaflet two sides along leaflet unit fixed edge Either matrix suture way or zigzag suture way.

8. artificial valve according to claim 5 or 6, it is characterised in that: suture way of the leaflet on sealing film Keep each node T-shaped to alternately pass through between sealing film and leaflet two sides along leaflet fixed edge, between two neighboring node Distance be 1~4 ㎜.

9. a kind of prosthetic valve apparatus, including artificial valve and valve frame, it is characterised in that: the valve frame be both ends in lotus shape, Intermediate network straight, the valve frame are followed successively by upper, middle and lower from top to bottom, and the upper and lower part is in The lotus shape, the middle part are in the straight-tube shape, and each portion is connected with each other by multiple rhomboids, the artificial valve For artificial valve according to any one of claims 1 to 8, the outer flaring at the sealing film both ends is in respectively lotus flower with the valve frame The both ends of shape match, and match in the middle part of the middle part of the sealing film and the valve frame, the sealing film is sutured in the valve On the inner wall of frame.

10. prosthetic valve apparatus according to claim 9, it is characterised in that: between the top and middle part of the valve frame with And by rigid vertical bar connection between middle part and lower part, the circumferential direction uniform cloth of the rigid vertical bar along valve frame at top and middle part is connected It sets, the rigid vertical bar of connection middle part and lower part is arranged in correspondingly between the rhomboid at middle part and the rhomboid of lower part, institute The both ends for stating sealing film are sewn to the both ends of the valve frame correspondingly in a manner of package respectively, and the artificial valve is in valve Suture way on frame is that upper and lower end parts are the mode that lasso knots, remaining position is the composition rhomboid along valve frame Bar around rod in a manner of stepped semi-circular sutures, and the distance of two neighboring semi-ring is 1~5 ㎜.