CN2788764Y

CN2788764Y - Four-lobe heart valve with enlarging valve ring

Info

Publication number: CN2788764Y
Application number: CN 200520056469
Authority: CN
Inventors: 王文林
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-01
Filing date: 2005-04-01
Publication date: 2006-06-21
Anticipated expiration: 2015-04-01

Abstract

The utility model relates to a quadricuspid heart valve with an expandable valve ring in cardiac surgery, which comprises a valve frame (1) and a valve leaflet (2), wherein the valve frame is composed of two semielliptical frames (3) and two joint support blocks (4), the joint support block is a rectangular frame, slide track holes (41) are arranged on both end surfaces, two deadeyes (42) are symmetrically arranged on panels on both sides, the middle part of an inner side panel is provided with a convex limit stopper (43), and the inner side of the semielliptical frame (3) is provided with two deadeyes (31) and has a convex limit stopper (33). The end part extends a guide slide shaft (32) which is matched with the slide track holes (41) on the two end surfaces of the joint support block, and a limit bulge loop is arranged on the guide slide shaft end. The valve leaflet (2) has two pairs of quadricuspids totally and is in a semiellipse shape, the two middle sides have projected valve shafts (21) which are arranged in the semielliptical frames and the deadeyes (31), (42) of the joint support blocks. After the valve is positioned in young patients having the affection of an aortic valve or a bicuspid valve, the caliber of the valve can be enlarged along with the development of a body.

Description

The expandable four leaf cardiac valve of a kind of lobe ring

Technical field

This utility model relates to the expandable four leaf cardiac valve of the lobe ring that uses in a kind of operation on heart.

Background technology

In heart aortic valve or Bicuspid valve operation, often need replace patient's valve with mechanical valve prosthesis, the once disclosed utility model patent of existing valve such as Chinese patent communique " mechanical bilobed heart valve made of ceramics ", patent No. 91100324.X, the mechanical bilobed heart valve made of ceramics that it is made up of lobe frame, lobe blade and suture ring, it is characterized in that: two lobe blades that it is made by ceramic material, rely on two lobe axles on each lobe blade, be positioned on the lobe frame, form and freely rotate.To the adult patient, because heart zoon, the bore of aortic valvular ring or annulus of mitral valve generally can not increase with patient's age slightly, therefore, replace mechanical valve prosthesis after, the mechanical valve prosthesis bore generally can be narrowless and small relatively because of the increase of heart.But to children's aortic valve in age or mitral lesion patient, when undergoing surgery, how heart does not grow fully, so equal lobe ring is more tiny, at this moment, if replace the little valve in a suitable lobe collar extension footpath, so, treat that patient grows up after, whole heart all will increase along with the growth of body, and the mechanical valve prosthesis bore of this moment can't increase, and such bore physiological needs of at all having no idea to satisfy will cause serious consequence.Therefore, design a kind of can being necessary very much with the valve of body growth increase bore.

The utility model content

The purpose of this utility model, with regard to provide a kind of can be used for younger ones in an age group's valvular heart disease operation can grow the expandable four leaf cardiac valve of lobe ring that increase bore with body.

For achieving the above object, the expandable four leaf cardiac valve of lobe ring of the present utility model, it is characterized in that: comprise lobe frame and two pairs of four lobe leaves, described lobe frame is connected back-up block and forms with two by two semiellipse frames, the connection back-up block is a rectangular frame, have skidway hole on the both ends of the surface, the inner panel symmetry has the two bearings hole, and the positive stop of protrusion is arranged in the middle of the inner panel; The inboard symmetry of described semiellipse frame has the two bearings hole and the outstanding block that is limited to is arranged.The end is then extended a guiding slide-bar and is matched with the aforementioned skidway hole that is connected the back-up block both ends of the surface, and the slide-bar end that leads is made position limiting convex ring; Described lobe leaf has two pairs four leaves, for there is outstanding lobe axle on half elliptic, central both sides, is contained in the dead eye of semiellipse frame and connection back-up block.

The beneficial effects of the utility model are: after inserting younger ones in an age group's aortic valve or mitral lesion patient with this valve, the bore of valve can be grown with body and be increased.

Description of drawings

Fig. 1 is the composition structure closure state schematic top plan view of this utility model embodiment during with small-bore inserting.

Fig. 2 is the A-A line cross-sectional schematic along Fig. 1.

Fig. 3 is Fig. 2 open state sketch map.

Fig. 4 outwards skids off the bore increase closure state schematic top plan view that makes valve for the semiellipse frame of embodiment lobe frame.

Fig. 5 is the B-B line cross-sectional schematic along Fig. 4.

Fig. 6 is Fig. 5 open state sketch map.

Fig. 7 is the C-C line cross-sectional schematic along Fig. 8.

Fig. 8 looks sketch map for connecting the back-up block master.

Fig. 9 looks sketch map for connecting a back-up block left side.

Figure 10 looks sketch map for semiellipse frame master.

Figure 11 is the schematic top plan view of Figure 10.

Figure 12 looks sketch map for lobe leaf master.

Figure 13 is the schematic top plan view of Figure 12.

Among the figure: 1 lobe frame, 2 lobe leaves, 21 lobe axles, 3 semiellipse frames, 31 semiellipse frame dead eyes, 32 guiding slide-bars, positive stop 33,4 connects back-up block, 41 skidway holes, 42 connect back-up block dead eye, 43 positive stops.

The specific embodiment

As shown in Figures 1 and 2, the expandable four leaf cardiac valve of the lobe ring of this utility model embodiment, comprise lobe frame 1 and lobe leaf 2, the lobe frame is connected back-up block 4 by two semiellipse frames 3 with two and forms, the connection back-up block is a rectangular frame, have skidway hole 41 on the both ends of the surface, the inner panel symmetry has two bearings hole 42, and the positive stop 43 of protrusion is arranged in the middle of the inner panel; The inboard symmetry of semiellipse frame 3 has two bearings hole 31, and has outstanding positive stop 33, end then to extend a guiding slide-bar 32 to match with the aforementioned skidway hole 41 that is connected the back-up block both ends of the surface, and the slide-bar end that leads is made position limiting convex ring; Lobe leaf 2 has two pairs four leaves, for there is outstanding lobe axle 21 on half elliptic, central both sides, is contained in the dead eye 31,42 of semiellipse frame and connection back-up block.

Two semiellipse frames are installed in the skidway hole that connects the back-up block both ends of the surface by the guiding slide-bar of end, make the semiellipse frame connecting the expansion of outwards sliding of back-up block both sides, the intermediary projection 33,43 of interior side direction of inboard, semiellipse frame end and connection back-up block makes the open maximum angle of lobe leaf be beneficial to closing automatically of lobe leaf less than 90 degree.Two pairs of four lobe leaves are divided into inside and outside two groups, and it is settled the semiellipse frame respectively and connects in the dead eye 31,42 of back-up block inboard, no matter which kind of width the semiellipse frame slides into, four lobe leaves all can with lobe frame good closure.

When just accepting valve replacement and go into to perform the operation, valve is inserted with more small-bore earlier, the little bore of patient in the time of can adapting to operation like this.And when heart increased with the age, the semiellipse frame will slide to both sides, and the bore of valve is increased, thereby satisfy the needs of body.

Claims

1, the expandable four leaf cardiac valve of a kind of lobe ring, comprise lobe frame (1) and lobe leaf (2), it is characterized in that: described lobe frame is connected back-up block (4) by two semiellipse frames (3) and forms with two, the connection back-up block is a rectangular frame, have skidway hole (41) on the both ends of the surface, the inner panel symmetry has two bearings hole (42), and the positive stop (43) of protrusion is arranged in the middle of the inner panel; The inboard symmetry of semiellipse frame (3) has two bearings hole (31), and has outstanding positive stop (33), end then to extend a guiding slide-bar (32) to match with the aforementioned skidway hole (41) that is connected the back-up block both ends of the surface, and the slide-bar end that leads is made position limiting convex ring; Described lobe leaf (2) has two pairs four leaves, for there is outstanding lobe axle (21) on half elliptic, central both sides, is contained in the dead eye (31,42) of semiellipse frame and connection back-up block.