CN2505045Y - Artificial mechanism heart valves - Google Patents
Artificial mechanism heart valves Download PDFInfo
- Publication number
- CN2505045Y CN2505045Y CN 01247366 CN01247366U CN2505045Y CN 2505045 Y CN2505045 Y CN 2505045Y CN 01247366 CN01247366 CN 01247366 CN 01247366 U CN01247366 U CN 01247366U CN 2505045 Y CN2505045 Y CN 2505045Y
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- CN
- China
- Prior art keywords
- axle bed
- lobe
- scalloped recess
- axle
- pair
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- Expired - Fee Related
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Abstract
An artificial mechanism heart valve is provided with a supporting ring and valve blades which can seal the mouth of the supporting ring, wherein, the internal wall of the supporting ring is provided with pairs of slot-style axial sockets, both ends of each valve blade are provided with an axis respectively, the axes on both ends of each valve blade are respectively sleeve arranged inside the two axial sockets inside one pair of slot-style axial sockets. The utility model is characterized in that each pair of slot-style axial sockets comprises at least one socket with the fan-shaped section, inside which an eccentric swinging axis is covered to be the axis of the valve blade, and the rotary axis of the eccentric swinging axis is located on the fan-shaped central line of the fan-shaped slot-style axial socket.
Description
Technical field
This utility model relates to a kind of artificial mechanical heart valve.
Background technology
The artificial mechanical heart valve mainly is made of lobe leaf and support ring, by the folding of lobe leaf, realizes the opening and closing of support ring collar extension.According to the number of lobe leaf, existing artificial mechanical heart valve can be single-lobe formula, bivalve formula and multi-clove type.China's utility model patent discloses a kind of bivalve formula artificial mechanical heart valve for No. 97205540.1, it comprises lobe ring and two lobe leaves, the bindiny mechanism of lobe ring and lobe leaf is made up of four hinge posts at four measure-alike kidney slots being opened on the lobe ring inwall and lobe leaf two ends, each hinge post stretches in the kidney slot respectively, kidney slot promptly serves as the axle bed that supports hinge post, when the folding of lobe leaf, each hinge post just rotates in kidney slot.In order to guarantee that the artificial mechanical heart valve can operate as normal, usually must implement spacing to the opening angle and the closed condition of lobe leaf, for this reason, this cardiac valve is provided with projection formula position limiting structure on the inwall of lobe ring blood stream outlet end end, realization is spacing to lobe leaf opening angle, simultaneously, this cardiac valve also is provided with annular boss on lobe ring blood flow arrival end inwall, allow its closed position to the lobe leaf limit.But, be provided with after above-mentioned spacing block set and the annular boss, not only make valvular structure be tending towards complicated, bring disadvantages such as making processing difficulties, production cost height, and set projection and boss also can hinder flowing of blood, thereby cause adverse consequences on physiology.Therefore, above-mentioned existing artificial mechanical heart valve exists defective.
The utility model content
The purpose of this utility model is that the support ring shaft base structure to existing artificial mechanical heart valve improves, and a kind of simple in structure, artificial mechanical heart valve that result of use is good is provided.
The lobe leaf that artificial mechanical heart valve of the present utility model has support ring and the support ring collar extension can be sealed, on the internal ring wall of support ring, be provided with the groove type axle bed in pairs, the two ends of described lobe leaf have the lobe rachis respectively, the lobe rachis at same lobe leaf two ends is placed on respectively in two interior axle beds of a pair of groove type axle bed, it is characterized in that in a pair of groove type axle bed, having an axle bed at least is that cross section is segmental scalloped recess axle bed, the lobe rachis that is placed in this scalloped recess axle bed is the eccentric swing axle, and the center of rotation of this eccentric swing axle is positioned on the fan-shaped centrage of scalloped recess axle bed.In this utility model, the above-mentioned cross section that is placed on the eccentric swing axle within the scalloped recess axle bed can be rectangle with straight flange, geometry such as fan-shaped, simultaneously, though can also being other, its cross section do not have straight flange, but its major axis is greater than the non-regular shape of minor axis, as strip (as ellipse or class ellipse, waist shape) etc.Because this lobe rachis that is placed in the scalloped recess axle bed is the eccentric swing axle, when this eccentric swing axle is swung in scalloped recess, can be subjected to the restriction of scalloped recess two side, can not realize any rotation of 360 degree.Exactly because the swing of this eccentric swing axle is limited in certain angular range by the two side of scalloped recess axle bed, corresponding the deflection of lobe leaf also is limited in certain angular range.Therefore, the spacing block set in the aforementioned existing apparatus and the position-limiting action of annular boss have been played in the two side of scalloped recess.So this utility model is provided with no longer separately implements spacing position limiting structure to the opening angle of lobe leaf and closed position, thereby has simplified product structure, has improved properties of product.Similar with existing product, the lobe leaf that is provided with in this utility model can be a slice, also can be two or multi-disc.Corresponding with it, the groove type axle bed that is provided with on the support ring internal ring wall can be a pair of, also can be two pairs or how right.Same to axle bed in, it is that cross section is segmental scalloped recess axle bed (this can realize above-mentioned limit function) that an axle bed can only be arranged, and allows another axle bed be the common axle bed of other shape of cross section (as circle).Simultaneously, also can allow two axle beds be cross section is segmental scalloped recess axle bed.In this utility model, the lobe leaf can directly be continued to use the version of existing product, as single-curved surface or hyperboloid form etc., repeats no more herein.
Compared with the aforementioned existing similar products, cardiac valve of the present utility model is provided with no longer separately implements spacing position limiting structure to the opening angle of lobe leaf and closed position, thereby makes the simple in structure of product, is convenient to processing, helps reducing product cost; Simultaneously, after the designs simplification, also avoided stress concentration occurring at projection and boss place, thereby the stress of product is disperseed, product is not fragile, and prolong service life; Moreover, the product structure of simplifying makes the weight saving that places the intravital Cardiac valve prosthesis of people, avoided the obstruction of projection boss to blood flow, make blood flow smooth and easy, and be difficult for forming thrombosis, can reduce the amount of closing and leakage rate, can not damage hemocyte too much, valvular multinomial biotechnology index is improved.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 cardiac valve.
Fig. 2 is the A--A cutaway view of Fig. 1.
Fig. 3 is the B--B cutaway view of Fig. 1.
Fig. 4 is the C--C cutaway view of Fig. 1.
Fig. 5 is the support ring structural representation of embodiment 1 cardiac valve.
Fig. 6 is the D--D cutaway view of Fig. 5.
Fig. 7 is the E--E cutaway view of Fig. 5.
Fig. 8 is the lobe leaf structure for amplifying sketch map of embodiment 1 cardiac valve.
Fig. 9 is the left view of Fig. 8.
Figure 10 is the vertical view of Fig. 8.
Figure 11 is the structural representation of embodiment 2 cardiac valves.
Figure 12 is the F--F cutaway view of Figure 11.
Figure 13 is the G--G cutaway view of Figure 11.
Figure 14 is the support ring structural representation of embodiment 2 cardiac valves.
Figure 15 is the H--H cutaway view of Figure 14.
Figure 16 is the I--l cutaway view of Figure 14.
Figure 17 is the structural representation of embodiment 3 cardiac valves.
Figure 18 is the J--J cutaway view of Figure 17.
Figure 19 is the support ring structural representation of embodiment 3 cardiac valves.
Figure 20 is the K--K cutaway view of Figure 19.
Figure 21 is the L--L cutaway view of Figure 19.
The specific embodiment
Embodiment 1: shown in Fig. 1～10, the lobe leaf 2 that artificial mechanical heart valve in the present embodiment has support ring 1 and the collar extension of support ring 1 can be sealed, on the internal ring wall of support ring 1, be provided with groove type axle bed 3 in pairs, 4, the two ends of described lobe leaf 2 have lobe rachis 5 respectively, 6, the lobe rachis 5 at same lobe leaf two ends, 6 are placed on two axle beds 3 in a pair of groove type axle bed respectively, in 4, it is characterized in that with a pair of groove type axle bed 3, in 4, having an axle bed at least is that cross section is segmental scalloped recess axle bed, the lobe rachis that is placed in this scalloped recess axle bed is the eccentric swing axle, and the center of rotation of this eccentric swing axle is positioned on the fan-shaped centrage of scalloped recess axle bed.It is in the present embodiment, above-mentioned that to be cross section with two axle beds 3,4 in a pair of groove type axle bed be segmental scalloped recess axle bed.Simultaneously, be placed on the lobe rachis the 5, the 6th in the above-mentioned scalloped recess axle bed 3,4 respectively, cross section is the oval-shaped eccentric swing axle of class.In the present embodiment, dotted line is depicted as the opening of lobe leaf among Fig. 2.As shown in Figure 7, in the opening process of lobe leaf, when the eccentric swing axle side of lobe leaf deflects to when contacting with a sidewall 7 of scalloped recess axle bed, the lobe leaf just can not further be opened, thereby the opening angle of lobe leaf is restricted.Otherwise, in the closed procedure of the pass of lobe leaf, when the opposite side edge run-out of eccentric swing axle extremely contacted with another sidewall 8 of scalloped recess axle bed, the lobe leaf just can not further be closed, and the sidewall 8 of scalloped recess axle bed has also just played the effect that the closed position of lobe leaf is limited.Lobe leaf in the present embodiment is two, and is corresponding with it, and the groove type axle bed that is provided with on the support ring internal ring wall also is two pairs.
Embodiment 2: shown in Figure 11～16, the cardiac valve in the present embodiment is similar to embodiment 1, and different is that in the present embodiment, in a pair of groove type axle bed 3,4, it is segmental scalloped recess axle bed for cross section that an axle bed 3 is only arranged.When cardiac valve was in the present embodiment worked, aforesaid position-limiting action can be played in the two side of scalloped recess axle bed 3.Therefore, another axle bed 4 in the present embodiment has adopted common circular hole formula groove axle bed.
Embodiment 3: shown in Figure 17～21, the cardiac valve in the present embodiment is similar to embodiment 1, and different is, in the present embodiment, lobe leaf 2 on the cardiac valve is a slice, and is corresponding with it, and the scalloped recess axle bed 3,4 that is provided with on the support ring internal ring wall is also for a pair of.
Claims (3)
1, a kind of artificial mechanical heart valve, the lobe leaf that has support ring and the support ring collar extension can be sealed, on the internal ring wall of support ring, be provided with the groove type axle bed in pairs, the two ends of described lobe leaf have the lobe rachis respectively, the lobe rachis at same lobe leaf two ends is placed on respectively in two interior axle beds of a pair of groove type axle bed, it is characterized in that in a pair of groove type axle bed, having an axle bed at least is that cross section is segmental scalloped recess axle bed, the lobe rachis that is placed in this scalloped recess axle bed is the eccentric swing axle, and the center of rotation of this eccentric swing axle is positioned on the fan-shaped centrage of scalloped recess axle bed.
2, artificial mechanical heart valve as claimed in claim 1 is characterized in that in a pair of groove type axle bed, and it is that cross section is segmental scalloped recess axle bed that an axle bed is only arranged.
3, artificial mechanical heart valve as claimed in claim 1 is characterized in that being cross section with two axle beds in a pair of groove type axle bed is segmental scalloped recess axle bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247366 CN2505045Y (en) | 2001-08-22 | 2001-08-22 | Artificial mechanism heart valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247366 CN2505045Y (en) | 2001-08-22 | 2001-08-22 | Artificial mechanism heart valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2505045Y true CN2505045Y (en) | 2002-08-14 |
Family
ID=33658241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01247366 Expired - Fee Related CN2505045Y (en) | 2001-08-22 | 2001-08-22 | Artificial mechanism heart valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2505045Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442958A (en) * | 2006-04-28 | 2009-05-27 | 麦德托尼克公司 | Method and apparatus for cardiac valve replacement |
-
2001
- 2001-08-22 CN CN 01247366 patent/CN2505045Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101442958A (en) * | 2006-04-28 | 2009-05-27 | 麦德托尼克公司 | Method and apparatus for cardiac valve replacement |
| CN101442958B (en) * | 2006-04-28 | 2012-09-05 | 麦德托尼克公司 | Apparatus for cardiac valve replacement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020814 Termination date: 20090922 |