CN209450723U - A kind of tricuspid valve forming ring of adjustable length and angle - Google Patents

Abstract

The utility model provides the tricuspid valve forming ring of a kind of adjustable length and angle, it is formed by that can cut part and part can not be cut, part can not be cut to be made of rigid stent and soft bracket, rigid stent is close to soft rack inner wall and is fixed, rigid stent is divided into five sections, front and back section can be in the bending angle of firmly state adjustment arc, it can be adjusted in time in art more to adapt to various disease Tricuspid annulus and expand feature, preferably restore annulus normal size and shape, intermediate three sections of centrostigmas with dispersive stress, both ends can freely be twisted perpendicular to annulus plane, comply with cardiac shape variation.The utility model is designed reasonably, it is easy to use, adaptable, and the good implantable heart valve prosthesis forming ring of myocardial compliance, can solve formability existing for existing forming ring and myocardial compliance cannot be considered in terms of, annulus and forming ring geometric shape are not agreed with mutually leads to be unable to accurate match, form in art after the problem of can not adjusting angle of ring etc. to influence molding effect.

Description

A kind of tricuspid valve forming ring of adjustable length and angle

Technical field

The utility model belongs to Implantable Medical Device field more particularly to a kind of molding of implantable heart valve prosthesis Ring, and in particular to a kind of tricuspid valve forming ring of adjustable length and angle is the tricuspid valve forming ring in heart valve, is one Kind length can the four-dimensional fixed two-dimentional mobilizable tricuspid valve forming ring in the adjustable part of crop angle.

Background technique

Human heart includes four valves, respectively aorta petal, bicuspid valve, tricuspid valve and pulmonary valve, four valves It is one-way valve, ensures that blood is not flowed in cardiac cycle with the direction of mistake with this.In cardiac valvuloplasty field, people Work annuloplasty band ring is used to repair or rebuild the heart valve annulus of lesion, relatively light suitable for valve and valve undertissue lesion, Leaflet mobility preferably, mainly because annulus expand caused by (the referring mainly to bicuspid valve, tricuspid valve) incompetence of pure valve or Because of the case of incompetence caused by rupture of chordae tendinca.Tricuspid valve is located at right atrioventricular orifice, the fiber branch constituted with dense connective tissue It is attached with 3 triangle leaflets in mounting ring, claims tricuspid valve or right atrioventricular valve, and as solid shape and size occur for cardiac cycle Variation, forming ring mainly has flexi-ring, hard ring and elastic ring three classes currently on the market.Flexi-ring complies with natural valve annulus aroused in interest Movement in period can more meet normal physiological status and dissection knot with the size and shape of Unlimited cyclomorphosis annulus Structure compliance, tricuspid valve forming ring flexi-ring have good compliance, but its support and forming effect are slightly worse, use flexi-ring Patient has found phenomena such as tricuspid regurgitation recurrence aggravates easily occur during follow-up.Although and the hard ring of metal hard inner core is long Phase effect stability can substantially reduce the incidence performed the operation again, but destroy the tricuspid annulus solid shape of physiological, lose Being forced property of the motion morphology limitation of periodically variation, especially septal leaflet, and suture is easy avulsion at this, for right ventricle Function also has certain detrimental effect.Ideal forming ring can be effectively adapted to while providing preferable support strength Normal Tricuspid annulus structure is remolded in the compound movement of cardiac cycle, and suture is not easy avulsion, and implantation is easy, and can be fitted Tricuspid annulus caused by various disease is answered to expand feature, because tricuspid valve forming ring currently used in the market is essentially according to Europe What the characteristics of Tricuspid annulus caused by beautiful patient's retrogression expands was designed, and found according to the research of applicant with rheumatic The most common lesion of Chinese based on lesion is based on tricuspid annulus is expanded and expanded with septal leaflet, to expand with the front and back valve of American-European crowd For main different from, with the Tricusp Valvuloplasty ring designed based on abroad studies, there are a series of problems, mainly clinical most normal The problem of seeing is that septal leaflet receives strength distortion gauffer when tricuspid valve puts loop forming, is easy to appear forming ring avulsion, tricuspid valve closure Phenomena such as recurrence does not aggravate entirely.Therefore research starts to turn to elastic ring between flexi-ring and hard ring, to overcome flexi-ring and hard The disadvantage of ring respectively, and extremely had according to the tricuspid valve forming ring that the design of various disease feature more meets the common lesion of Chinese It is necessary.Since the ratio difference of the widened form of each patient's annulus and each leaflet is very big, and it is limited to be limited to model in art, can only It will be with using.Therefore, we, which devise, may be adjusted to type ring, i.e., length can be cut, and the bending angle of annulus is adjustable, so as to Change shapes and sizes during surgical, the tricuspid annulus that can adapt to Chinese and western various forms expands.

Summary of the invention

The purpose of the utility model is to provide the tricuspid valve forming rings of a kind of adjustable length and angle, by that can cut part (1) and part (2) composition can not be cut, connected end is equipped with mark line 5, and two free ports claim the end E and the end D, whole shape respectively Shape is similar to ellipse jaggy, consistent (end E is slightly below the end D) with the tricuspid annulus shape of health.Part (1) can be cut Be it is solid arc-shaped, be made of medical fibre fabric and its gel-filled gap, can any one of clipping region position cut Stump will not be loose afterwards；Part (2) can not be cut also to be arc-shaped, in vitro without applied external force when the end E be slightly below plane；It can not It cuts part 2 to be made of rigid stent (3) and soft bracket (6), rigid stent 3 is completely wrapped in soft bracket 6, is It is close to soft 6 inner wall of bracket and is fixed from sliding, soft bracket (6) construction is with that can cut part (1), by medical fibre fabric system At and its gel-filled gap be made, the painting colo(u)r streak of mark line 5 in different colors to divide can Crop Area with can not the company of cutting Place is met, excessively causes rigid stent (3) exposed to prevent from cutting out.Rigid stent 3 is by having both elastic one whole cylinder with hardness Shape stamped metal forms, and is divided into five sections, leading portion bracket (7) and back segment bracket (9) can be in the bending angles of firmly state adjustment arc Degree, three sections of centre are the movable bracket of transition bracket (10) and center (8) of two sides respectively, and wherein transition bracket (10) is in height The oblate cylindricality successively decreased, movable bracket (8) is flaky, and the midpoint of movable bracket 8 and entire tricuspid valve forming ring are most The midpoint of right side arc is consistent, and the end E can be move freely under the external force of heartbeat perpendicular to annulus plane, but cannot edge Arcuate directions it is planar movable, i.e., cannot change radian.

The utility model is formed by one whole stamped metal, simpler relative to other materials processing technology, and without magnetic Property, do not influence magnetic resonance examination.Can cut out part be it is solid arc-shaped, with medical fibre fabric and its gel-filled gap system At, can any position in clipping region cut after stump will not be loose, valve structure before corresponding tricuspid valve, tailorable design makes it Individuation difference is more adapted to, soft material helps to protect the important feature around Tricuspid annulus, keeps it not easily damaged；It can not Part is cut out to be made of nonmagnetic metal inside bracket and the medical fibre textile flexibility housing being wrapped on inner core, it is described interior The shape of core and normal tricuspid valve septal leaflet are consistent with the shape of ring where back lobe, 5 sections of interior core support point, and front and back section bracket can be The firmly bending angle of state adjustment arc can be adjusted in time in art more to adapt to the expansion of the Tricuspid annulus of different people Feature preferably restores annulus normal size and shape, and 3 sections of intermediate support point, is that the transition bracket of two sides and center can respectively Movable support composition, the oblate cylindricality that transition bracket successively decreases in height, with the centrostigma of dispersive stress, the movable bracket in center is in Flake can be twisted freely perpendicular to annulus plane under external force, complied with periodic cardiac shape variation, prevented avulsion And protection heart function.The utility model is designed reasonably is a kind of easy to use, adaptable, and the plant that myocardial compliance is good Entering property heart valve prosthesis forming ring, can solve formability existing for existing forming ring and myocardial compliance cannot be considered in terms of, valve Ring and forming ring geometric shape, which are not agreed with mutually, leads to be unable to accurate match, form in art after can not adjust angle of ring etc. to The problem of influencing molding effect.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the schematic diagram of cross section A shown in Fig. 1.

Fig. 3 is the schematic diagram of cross section B shown in Fig. 1.

Fig. 4 is the schematic diagram of cross section C shown in Fig. 1.

Specific embodiment

Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following reality Example is applied for illustrating the utility model, but is not intended to limit the scope of the present invention.

In the description of the present invention, it should be understood that term " center ", "front", "rear", "left", "right", " water It is flat ", the orientation or positional relationship of the instructions such as " vertical " is, based on attached orientation or positional relationship shown in FIG. 1, is merely for convenience of Describe the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Embodiment 1

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of length provided by the utility model can the adjustable part of crop angle it is four-dimensional The fixed mobilizable tricuspid valve forming ring of two dimension, is formed, connected end is equipped with label by that can cut part 1 and can not cut part 2 Line 5, two free ports claim the end E and the end D respectively, and global shape is similar to ellipse jaggy, and the tricuspid valve of health Ring-shaped is consistent, and the major part of entire ring is medical fibre fabric and gel filled composition, has high-modulus, low creep, fatigue The high feature of intensity can make forming ring comply with movement of the natural valve annulus in cardiac cycle, meet normal physiology shape Condition.Can cut part 1 be it is solid arc-shaped, be made of medical fibre fabric and its gel-filled gap, part 1 can be cut Stump 4 will not be loose after any one position is cut, this tailorable design is the preceding valve width in order to adapt to Different Individual； Annulus expands more obvious (correspondence can clipping region) before external research is found, rear annulus expands that most obvious (correspondence can not be cut out Cut the top half in region), our research conclusion show Chinese patients because the ethnic group cause of disease is different from foreign countries, Chinese patients septal leaflet Ring often obviously expands the lower half portion of clipping region (correspondence can not), and the design of the utility model will expand each segment or not Expand general.Tri-aid ring abandons main this block of the root A, this be it is reasonable, it avoid stereochemical structure it is most complicated and because actively The dynamic position for being easiest to tear of pulsation.The design advantage of the utility model is: part can be cut when operation, and to cut length proper Well, it does not contract when suture, no-station pole canopy, soft compliance well would not avulsion；It can prevent this postoperative part from expanding Deng than putting after ring is fixed Greatly, and the front end fixed range of ring is long, and the stress dispersion of suture, front and back annulus intersection is also just not easy avulsion；Annulus before simultaneously It is the aorta petal structure in order to can protect tricuspid valve rear and the hardness drawing to conductive beam, hard annular with the design of flexi-ring State is fixed, and can only be agreed with the annulus three-dimensional shape of a part of patient, and often intractable after suture, especially head end can upwarp down Outreach adduction is pressed, avulsion suture and impair cardiac are easy.Part 2 can not be cut also to be solid arc-shaped, made in vitro without outside In the two-dimensional surface distorted when firmly in one, the end E is slightly below plane.Part 2 can not be cut by rigid stent 3 and soft branch Frame 6 forms, and rigid stent 3 is completely wrapped in soft bracket 6, is to be close to soft 6 inner wall of bracket to be fixed from sliding, metal Rigid stent 3 provide preferable support strength, lesion Tricuspid annulus is effectively remolded, stablize annulus structure, Eliminate the risk of recurrence deformation.Rigid stent 3 is suppressed by one whole cylindrical metal for having both elasticity and hardness, is divided into Five sections, leading portion bracket 7 and back segment bracket 9 can keep patient timely in art in the bending angle of firmly state adjustment arc It adjusts tricuspid valve forming ring to have a common boundary and the angle on the direction of rear septal leaflet boundary in front and back valve, ensures molding effect as far as possible, in Between bracket be divided into three sections, be 2 sections of transition brackets 10 of two sides and the movable bracket 8 at center respectively, wherein transition bracket 10 is in The oblate cylindricality that height is successively decreased, movable bracket 8 is flaky, and principle is for example same arc steel ruler, is only capable of perpendicular to steel plate Up and down in plane, i.e., the end E can freely twist (where the end E under the external force of heartbeat perpendicular to annulus plane Can not cut out areas lower half portion can be higher than the end D or be significantly lower than the end D), but cannot along arcuate directions planar left and right live It is dynamic, i.e., it cannot change radian.The design of this special shape and structure is simulation tricuspid valve complicated morphology in cardiac cycle Variation as a result, the most obvious feature design of the movement of especially tricuspid valve septal leaflet ring.The hard ring listed not contracting septal leaflet valve Ring, annulus expand serious patient and are placed in after Tricusp Valvuloplasty ring every the corresponding interventricular septum width of portion's ring opening (E end regions) It it is significantly wider than the opening of ring, must form gauffer, the serious distortion shape of normal valve mouth, and make (E at the first needle of septal leaflet ring End) tension greatly increases, cause avulsion.It is shown according to statistics, Chinese's septal leaflet ring is obvious widened more, to avoid in art above-mentioned Two problems.Solution: (1) head end is soft.(2) cannot be too anxious every boundary corner after forming ring, arc excessive.From every Annulus midpoint starts to make suture in ＂ width concentrate around one point, as spokes on acis with continuously or discontinuously suturing " shape, while reducing part septal leaflet annulus and back lobe annulus. Desalinate ＂ every boundary angle ＂ after originally.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change It also should be regarded as the protection scope of the utility model into modification.

Claims (8)

1. the tricuspid valve forming ring of a kind of adjustable length and angle, which is characterized in that by that can cut part (1) and can not cut Partially (2) form, and connected end is equipped with mark line (5), and two free ports claim the end E and the end D respectively, can not cut part (2) by Rigid stent (3) and soft bracket (6) composition, rigid stent (3) are close to soft bracket (6) inner wall and are fixed, rigid stent (3) point It is five sections, leading portion bracket (7) and back segment bracket (9) can be respectively in the bending angle of firmly state adjustment arc, intermediate three sections The movable bracket of transition bracket (10) and center (8) of two sides, the oblate cylindricality that wherein transition bracket (10) successively decreases in height, can Movable support (8) is flaky.

2. the tricuspid valve forming ring of a kind of adjustable length according to claim 1 and angle, which is characterized in that whole shape Shape is similar to ellipse jaggy, consistent with the tricuspid annulus shape of health, in vitro without applied external force when the end E be lower than D End.

3. the tricuspid valve forming ring of a kind of adjustable length according to claim 1 and angle, which is characterized in that can cut Partially (1) is solid arc-shaped, is made of medical fibre fabric and its gel-filled gap, can any one of clipping region portion Stump (4) will not be loose after position is cut.

4. the tricuspid valve forming ring of a kind of adjustable length according to claim 1 and angle, which is characterized in that hard branch Frame (3) is suppressed by one whole cylindrical metal for having both elasticity and hardness, is divided into five sections.

5. the tricuspid valve forming ring of a kind of adjustable length according to claim 1 and angle, which is characterized in that movable The midpoint of the midpoint of bracket (8) and the right side of entire tricuspid valve forming ring arc most outstanding is consistent.

6. the tricuspid valve forming ring of a kind of adjustable length according to claim 1 and angle, which is characterized in that mark line (5) painting colo(u)r streak in different colors Crop Area and can not cut junction to divide.

7. the tricuspid valve forming ring of a kind of adjustable length according to claim 1 and angle, which is characterized in that soft branch Frame (6) is identical as that can cut part (1), is made of medical fibre fabric and its gel-filled gap.

8. the tricuspid valve forming ring of a kind of adjustable length according to claim 1 and angle, which is characterized in that the end E can It is move freely under the external force of heartbeat perpendicular to annulus plane, but cannot be planar movable along arcuate directions, Radian cannot be changed.