CN202458783U - Artificial biological heart valve - Google Patents
Artificial biological heart valve Download PDFInfo
- Publication number
- CN202458783U CN202458783U CN2011204696659U CN201120469665U CN202458783U CN 202458783 U CN202458783 U CN 202458783U CN 2011204696659 U CN2011204696659 U CN 2011204696659U CN 201120469665 U CN201120469665 U CN 201120469665U CN 202458783 U CN202458783 U CN 202458783U
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- Prior art keywords
- valve
- bracket
- artificial biological
- biological heart
- valve seat
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- Expired - Lifetime
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Abstract
The utility model discloses an artificial biological heart valve, which comprises a valve seat, a valve support and three biological tissue leaflets attached onto the valve support. Alloy wires are wound into three continuous arcs so as to form the valve support, wherein the three arcs are mutually positioned at an angle of 120 degrees with respect to each other. The joint parts of the three arcs are connected together through bushings. The bushings shift toward raised side of the joints parts of the valve support. According to the technical scheme of the utility model, the shape and the shaping mode of the valve support are mainly improved, while the structure of the valve seat is also improved. Therefore, the artificial biological heart valve is more stable in blood kinetics performance and is better in anti-fatigue property.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of artificial biological heart valve.
Background technology
Valve is equivalent to the entrance guard, stops blood to reflux in the ventricle that has just left, and valve makes heart promote blood and forms circulation as making blood form the biological valve of directed flow.Between atrium and ventricle, at ventricle and leave between the blood vessel of ventricle, valve is arranged all.
For the patient who suffers from the serious symptom valvular heart disease, carrying out the Cardiac valve prosthesis replacement through surgical operation is unique efficacious therapy means.Cardiac valve prosthesis is divided into artificial mechanical heart valve and artificial biological heart valve.Since nineteen sixty-five, biovalve since the implant into body, because it has good biocompatibility and center flow channels than mechanical valve prosthesis, has obtained using widely in clinical first.And because related complications such as artificial mechanical valve prosthesis's anticoagulant etc. make its long-term survival rate not be superior to artificial biological heart valve; And the research of bioprosthesis valve constantly made progress; Its durability is greatly improved, and consequently increasing doctor and patient select artificial biological heart valve.Present artificial biological heart valve is heterograft tissue valve, bovine pericardium valve and porcine aortic valve.
Artificial biological heart valve is to process according to the structural principle of human semilunar valve; Mainly have valve bracket, valve seat, lobe leaf and coat cloth etc.; The valve seat is generally hard material and processes; And have certain width, sew up valve seat and lobe leaf for ease, both junctions have the suture ring that coating cloth is processed.Like U.S. Pat 4501030 disclosed Cardiac valve prosthesiss.Valve bracket is with three continuous circular arcs (seeing Chinese patent CN1701770A) of 120 degree each other of medical implantable intravital tinsel coiled; Three end circumferences that following arc constituted of valve seat centrage girth and valve bracket are consistent, and outer polyester textile upper limb of valve seat and the outer polyester textile lower edge of valve bracket link together through suture.
Valve bracket is that because the connected mode of valve bracket joint is telescopic joint, and sleeve pipe has certain thickness with three continuous circular arcs of 120 degree each other of medical implantable intravital tinsel coiled, and causing can not be symmetrical fully when making the lobe leaf; What the valve seat adopted is that the single-layer metal sheet is processed into, and blood was to the impact of lobe leaf when difficult elimination was closed because of valve.
The utility model content
The technical problem that (one) will solve
The technical problem that this utility model will solve is to make the cardiac valve structure more stable, and endurance more, and the service life of further improving valve.
(2) technical scheme
In order to solve the problems of the technologies described above; This utility model provides a kind of artificial biological heart valve; Include valve seat, valve bracket and be attached to three biological tissue's lobe leaves on the valve bracket; The shape of said artificial biological heart valve is similar to the natural cardiac valve of human body self; Said valve bracket turns to three continuous circular arcs of 120 degree each other for the alloy silk through once-forming, and wherein the telescopic joint of same material is adopted in the joint, and the sleeve pipe skew is a protruding side in the joint of said valve bracket.
Preferred as technique scheme, said valve seat cross section is double-deck rectangular configuration, after the valve seat surrounds circle, three round Zhou Dengyuan in the end that orthodrome constituted of the centrage circumference of double-deck valve seat thickness and valve bracket; Three lobe leaves are to fix with suture way through three roundlet arc top structures of valve bracket.
Preferred as technique scheme, the telescopic inboard cross sectional shape of said valve bracket joint is a hexagon.
Preferred as technique scheme, the alloy silk of said valve bracket and the material of valve seat are cobalt-base alloys.
Preferred as technique scheme, the thickness of said valve seat is 0.1mm-0.2mm.
Preferred as technique scheme, said diameter of alloy wire is 0.5mm-0.8mm.
Preferred as technique scheme is provided with suture ring between said valve seat and the valve bracket, and said valve seat and suture ring are through coating cloth and coat with suture and being stitched together.
Preferred as technique scheme, three lobe leaves of said valve are heteroplasm's sheet.
Preferred as technique scheme, said heteroplasm sheet is a bovine pericardial tissue.
(3) beneficial effect
The artificial biological heart valve that technique scheme provided; It includes valve seat, valve bracket and is attached to three biological tissue's lobe leaves on the valve bracket; The shape of said artificial biological heart valve is similar to the natural cardiac valve of human body self; Said valve bracket turns to three continuous circular arcs of 120 degree each other for the alloy silk through once-forming, and wherein the telescopic joint of same material is adopted in the joint, and the sleeve pipe skew is a protruding side in the joint of said valve bracket.Mainly through the improvement to valve bracket shape and forming mode, the improvement of valve holder structure makes it to have more stable hemodynamic performance, better fatigue resistance to the present technique scheme.
Description of drawings
Fig. 1 is the structural representation of the artificial biological heart valve of this utility model embodiment;
Fig. 2 is that the valve bracket of the artificial biological heart valve of this utility model embodiment launches sketch map;
Fig. 3 is the valve bracket shaping schematic view of the artificial biological heart valve of this utility model embodiment;
Fig. 4 is the telescopic joint position view of valve bracket of the artificial biological heart valve of this utility model embodiment;
Fig. 5 is the sleeve structure sketch map of the artificial biological heart valve of this utility model embodiment;
Fig. 6 is the valve holder structure sketch map of the artificial biological heart valve of this utility model embodiment;
Fig. 7 is the valve seat schematic cross-section of the artificial biological heart valve of this utility model embodiment;
Fig. 8 is that the valve seat and the suture ring of the artificial biological heart valve of this utility model embodiment coats generalized section;
Fig. 9 is that the valve seat and the suture ring of the artificial biological heart valve of this utility model embodiment coats the plan structure sketch map;
Figure 10 is that valve bracket and the valve seat of the artificial biological heart valve of this utility model embodiment put and concerned sketch map;
Wherein, 1: suture ring; 2: the valve seat; 3: valve bracket; 4: the lobe leaf; 5: coat cloth; 6: the inner ring stitching thread; 7: the outer ring stitching thread; 8: sleeve pipe.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the specific embodiment of this utility model is described in further detail.Following examples are used to explain this utility model, but are not used for limiting the scope of this utility model.
As shown in Figure 1; Structural representation for the artificial biological heart valve of present embodiment; It includes valve seat 2, valve bracket 3 and is attached to three biological tissue's lobe leaves 4 on the valve bracket 3; The shape of artificial biological heart valve is similar to the natural cardiac valve of human body self, and valve bracket 3 is that the cobalt-base alloys silk turns to three continuous circular arcs (like Fig. 2 and shown in Figure 3) of 120 degree each other through once-forming, has made it to form the smooth curve on the mathematical concept; And, make it have good fatigue-resistance characteristics through Overheating Treatment.Diameter of alloy wire is preferably 0.5mm-0.8mm.Wherein the joint adopts the sleeve pipe 8 of same material to connect, and the sleeve pipe skew is a protruding side in the joint of valve bracket 3.Because sleeve pipe 8 has certain thickness,, make it have symmetry when guaranteeing to make the lobe leaf simultaneously, certain distance so squinted in the joint of valve bracket 3 (like Fig. 2 and Fig. 4) in order to guarantee the measure-alike of three bulge-structures.The sleeve pipe of valve bracket 3 joints is pressed into sleeve pipe like Fig. 4 and shape shown in Figure 5 through particular jig, and the inboard cross sectional shape of the sleeve pipe 8 of valve bracket 3 joints is a hexagon, can guarantee the firmness that valve bracket connects.
In conjunction with Fig. 6 and Fig. 7, valve seat 2 cross sections are double-deck rectangular configuration, after valve seat 2 surrounds circle, and 3 three round Zhou Dengyuan in the end that orthodrome constituted of the centrage circumference of double-deck valve seat 2 thickness and valve bracket; Lobe leaf 4 is to fix with suture way through three roundlet arc top structures of valve bracket 3.Concrete, valve seat 2 is processed into given shape by the cobalt-base alloys sheet, and adopts ad hoc fashion (like welding) connection to be fixed up; The thickness of valve seat 2 is 0.1mm-0.2mm, and the cross section is double-deck rectangular configuration, after valve seat 2 surrounds circle, and circle such as the end diameter of a circle centrage that the centrage of double-deck valve seat 2 thickness and 3 three orthodromes of valve bracket are constituted.
Be provided with suture ring 1 between valve seat 2 and the valve bracket 3, valve seat 2 and suture ring 1 are through coating the coating of cloth 5 usefulness suturees and being stitched together.Suture ring 1 is that the medical grade silicon rubber of implant into body is processed for a long time; Valve seat 2 coats and be stitched together (like Fig. 8, Fig. 9 and shown in Figure 10) with coating cloth 5 through suture with suture ring 1.
Concrete sewing method adopts the suture way of inner ring and outer ring, referring to inner ring stitching thread 6 and outer ring stitching thread 7.Distance with each woven design is sewed up weeks (wherein coating cloth 5 adopts the double-layer folding modes to sew up) along the edge of suture ring 1 with valve seat 2 and suture ring 1 usefulness coating cloth 5 from the outer ring earlier; Sew up a week along the internal diameter of suture ring 1 and the external diameter of being close to valve seat 2 with the distance of 1 pin/2-3mm again; Guarantee that simultaneously suture ring 1 is not distorted and radial direction is tightened, do not have the absent-mindedness shape; Valve bracket 3 all is coated with valve seat 2 outsides and coats cloth 5, and three the orthodrome edges and valve seat 2 edges of valve bracket 3 unite by a seam through suture; The convex structure that three tissue flap leaves 4 of valve form after being shaped through valve bracket 3 is clamped 2 lobe leaves involutory neat part each other respectively, makes fixing (prior art is seen U.S. Pat 4501030) through the valve pad that valve bracket 3 outsides increase.The method for coating of valve seat 2 and suture ring 1 is the suture way that adopts inner ring and outer ring, and sewing method is simple, quick.
The lobe leaf 4 of valve is heteroplasm's sheet of handling through chemical modification.Should the middle preferred bovine pericardial tissue of heteroplasm's sheet.
The key point of this utility model:
1) skew of the valve bracket 3 of 120 degree and valve bracket 3 junctions each other, and the processing mode of valve bracket 3 makes being more prone to symmetrically of lobe leaf 4 when valve is made, and valve structure is more stable;
2) double-deck valve seat 2 structures, when helping reducing valve and closing to the impact of lobe leaf 4;
3) improvement of the method for sewing of valve seat 2 coatings has improved the sewing efficiency of valve, and helps sutural the end of a thread is hidden, and reduces the probability that thrombosis produces when implanting.
Can find out by above embodiment; The artificial biological heart valve that this utility model embodiment provides; It includes valve seat 2, valve bracket 3 and is attached to three biological tissue's lobe leaves 4 on the valve bracket 3; The shape of artificial biological heart valve is similar to the natural cardiac valve of human body self; Valve bracket 3 is that the alloy silk turns to three continuous circular arcs of 120 degree each other through once-forming, and wherein the joint adopts the sleeve pipe 8 of same material to connect, and the sleeve pipe skew is in a side of the joint of valve bracket 3 convexity.Mainly through the improvement to valve bracket 3 shapes and forming mode, the improvement of valve seat 2 structures makes it to have more stable hemodynamic performance, better fatigue resistance to the present technique scheme.
The above only is the preferred implementation of this utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from this utility model know-why, can also make some improvement and replacement, these improvement and replacement also should be regarded as the protection domain of this utility model.
Claims (10)
1. artificial biological heart valve; Include valve seat, valve bracket and be attached to three biological tissue's lobe leaves on the valve bracket; It is characterized in that; Said valve bracket is processed three continuous circular arcs of 120 degree each other for the alloy filament winding, and wherein the joint employing is telescopic joint, and the sleeve pipe skew is a protruding side in the joint of said valve bracket.
2. artificial biological heart valve as claimed in claim 1; It is characterized in that; Said valve seat cross section is double-deck rectangular configuration, after the valve seat surrounds circle, and three round Zhou Dengyuan in the end that orthodrome constituted of the centrage circumference of double-deck valve seat thickness and valve bracket; Three lobe leaves are to fix with suture way through three roundlet arc top structures of valve bracket.
3. artificial biological heart valve as claimed in claim 1 is characterized in that, the telescopic inboard cross sectional shape of said valve bracket joint is a hexagon.
4. artificial biological heart valve as claimed in claim 2 is characterized in that, the alloy silk of said valve bracket and the material of valve seat are cobalt-base alloys.
5. artificial biological heart valve as claimed in claim 2 is characterized in that, the thickness of said valve seat is 0.1mm-0.2mm.
6. artificial biological heart valve as claimed in claim 1 is characterized in that, said diameter of alloy wire is 0.5mm-0.8mm.
7. artificial biological heart valve as claimed in claim 1 is characterized in that, is provided with suture ring between said valve seat and the valve bracket, and said valve seat and suture ring coat with suture through coating cloth and be stitched together.
8. artificial biological heart valve as claimed in claim 1 is characterized in that, the lobe leaf of said valve is heteroplasm's sheet.
9. artificial biological heart valve as claimed in claim 8 is characterized in that, said heteroplasm sheet is a bovine pericardial tissue.
10. artificial biological heart valve as claimed in claim 1 is characterized in that, said telescopic material is identical with alloy wire matter between the said valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204696659U CN202458783U (en) | 2011-11-23 | 2011-11-23 | Artificial biological heart valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204696659U CN202458783U (en) | 2011-11-23 | 2011-11-23 | Artificial biological heart valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202458783U true CN202458783U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204696659U Expired - Lifetime CN202458783U (en) | 2011-11-23 | 2011-11-23 | Artificial biological heart valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN202458783U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103239302A (en) * | 2013-04-23 | 2013-08-14 | 金仕生物科技（常熟）有限公司 | Heart valve prosthesis and valve stent thereof |
| CN105142574A (en) * | 2013-03-15 | 2015-12-09 | 爱德华兹生命科学公司 | Valved aortic conduits |
| CN106999280A (en) * | 2014-11-18 | 2017-08-01 | H-H·西弗斯 | Bio-artificial cardiac valves |
| CN111925939A (en) * | 2020-09-08 | 2020-11-13 | 华中科技大学同济医学院附属协和医院 | Dynamic pressurized tissue engineering valve cell inoculator and use method thereof |
-
2011
- 2011-11-23 CN CN2011204696659U patent/CN202458783U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142574A (en) * | 2013-03-15 | 2015-12-09 | 爱德华兹生命科学公司 | Valved aortic conduits |
| CN103239302A (en) * | 2013-04-23 | 2013-08-14 | 金仕生物科技（常熟）有限公司 | Heart valve prosthesis and valve stent thereof |
| CN106999280A (en) * | 2014-11-18 | 2017-08-01 | H-H·西弗斯 | Bio-artificial cardiac valves |
| CN106999280B (en) * | 2014-11-18 | 2020-03-06 | H-H·西弗斯 | Bioprosthetic heart valve |
| CN111925939A (en) * | 2020-09-08 | 2020-11-13 | 华中科技大学同济医学院附属协和医院 | Dynamic pressurized tissue engineering valve cell inoculator and use method thereof |
| CN111925939B (en) * | 2020-09-08 | 2023-07-04 | 华中科技大学同济医学院附属协和医院 | Application method of dynamic pressurization tissue engineering valve cell inoculator |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
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| CX01 | Expiry of patent term |