CN204219096U - A kind of curved face type mechanical bilobed heart valve - Google Patents
A kind of curved face type mechanical bilobed heart valve Download PDFInfo
- Publication number
- CN204219096U CN204219096U CN201420529889.8U CN201420529889U CN204219096U CN 204219096 U CN204219096 U CN 204219096U CN 201420529889 U CN201420529889 U CN 201420529889U CN 204219096 U CN204219096 U CN 204219096U
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- China
- Prior art keywords
- lobe
- leaf
- bilobed
- heart valve
- ring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2403—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with pivoting rigid closure members
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- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The utility model discloses a kind of curved face type mechanical bilobed heart valve, this utility model considers that Cardiac valve prosthesis opening and closing situation and hemodynamics are on the impact of valve performance, designing a kind of novel artificial mechanical heart valve, is concave Iy curved bi-leaflet valve structure.The pivot of its mesopetalum leaf is fixedly limited in lobe ring, and lobe impeller structure is edge equal altitudes plane, and middle part is for meeting the level and smooth concave curvatures of flow behavior.At lobe ring stopper slot, lobe leaf is by pivot rotation-limited.It is simple that this utility model has curved form, handling ease; Reduce own vol, opening and closing is easy, and hemodynamic is excellent, the advantage of long service life.
Description
Technical field
This utility model relates to the medical treatment device in implant into body, particularly relates to a kind of artificial mechanical's bifolium cardiac valve.
Background technology
Cardiac valve prosthesis implanted prosthetics is the important means for the treatment of human heart valve disease.Current, Cardiac valve prosthesis is for replacing impaired cardiac valve, artificial mechanical heart valve's major part of domestic and international clinic trial uses bilobed flap type (as St.Jude lobe, GK lobe), its major function replaces cardiac valve impaired in human body, exercise valvular normal physiological function, improve artificial valve's hemodynamic situation.From nineteen sixties development, existing ISUZU company uses course so far.Artificial mechanical heart valve is generally made up of lobe frame, lobe leaf, suture ring.Along with heartthrob opens and closes during work, ensure the directed flow of blood.In existing patent, United States Patent (USP) 4276658 proposes bilobed flap planarized structure, and its lobe leaf is plane, rigidity opening and closing.China Patent No. 97205540.1 adopts bilobate kidney-shaped face structure, and its difficulty of processing is high.Surface of striction increases lobe leaf volume and weight.Above-mentioned prior art has improves perfect necessity further.
Utility model content
The purpose of this utility model is to provide a kind of artificial mechanical heart valve of concave curved surface lobe leaf, and it is simple to make it to have structure, handling ease, advantage easy for installation.
The purpose of this utility model is realized by following means.
A kind of curved face type mechanical bilobed heart valve, be arranged on bi-lobate structure artificial mechanical heart flows through in the passage of lobe ring blood flow and keep blood directed flow and stop blood backflow, form primarily of lobe ring 30, suture ring 40 and the bivalve leaf mechanism be connected on lobe ring, it is characterized in that, bilobed flap mechanism adopts and is made up of symmetrically arranged lobus sinister lobe 10 and lobus dexter lobe 20, and the middle part of each leaf lobe is inner sunken face 15; Edge is contour plane 16; Avris two ends have lug (11 and 12) pivotally, to form matched in clearance hinge with the respective recess 31 on lobe ring.
The blade construction that technical solutions of the utility model are improved, blade one side is designed to the shape of intermediate groove, marginal portion is contour plane.Both decreased lobe leaf volume, and be convenient to again the processing of blade, the range of choice of material is larger.This kind of form also alleviates lobe leaf quality, and can use the material that comprehensive mechanical performance is higher, keeps the service life that blade is high.
Compared with prior art, the beneficial effects of the utility model are: improve lobe impeller structure form dexterously, improve blade particularly pivot and lobe leaf edge stiffness, reduce blade volume simultaneously, manufacture simple and reliable, easily, safety in utilization and life-span improve further in assembling.
Accompanying drawing illustrates:
Below in conjunction with drawings and Examples, this utility model is further illustrated:
Fig. 1: be axonometric chart of the present utility model.
The B-B sectional view of Fig. 2: Fig. 1.(double dot dash line have expressed the state that lobe leaf is opened).
Fig. 3: the top view of lobe leaf.
The A-A sectional view of Fig. 4: Fig. 3.
Below in conjunction with accompanying drawing, structure of the present utility model is described in further detail:
One mechanical bilobed heart valve, forms primarily of lobe ring 30, suture ring 40 and the bivalve leaf mechanism be connected on lobe ring.Bilobed flap mechanism adopts and is made up of symmetrically arranged lobus sinister lobe 10 and lobus dexter lobe 20, and the middle part of each leaf lobe is inner sunken face 15; Edge is contour plane 16; Avris two ends have lug (11 and 12) pivotally, and lug is in order to form matched in clearance hinge with the respective recess 31 on lobe ring.
This utility model basic structure provides the new way of improvement for artificial mechanical heart valve.
During concrete enforcement, lobe ring and lobe leaf are made up of metal or RESEARCH OF PYROCARBON, and lobe frame and lobe leaf have titanium or titanium alloy surface-treated layer.Two principal planes of lobe leaf are coated with thin film of titanium oxide, and lobe ring inner ring surface is coated with thin film of titanium oxide.
In processing technique, this utility model version utilizes three-dimensional modeling to create a basic structure, afterwards according to structure mechanics analysis such as finite elements, optimize lobe leaf concave curved surface version and obtain corresponding curved surface valve structure, then by common machining, digital control processing and certain mechanical grip can complete production.
Meanwhile, because the design of this utility model lobe leaf is on the architecture basics of double leaf mechanical valve monolithic stability, improves the design of lobe leaf, reduce lobe leaf volume, reduce rotary inertia, improve lobe leaf rotating property in blood flow field; Due to the reduction of volume, the lobe leaf of the better titanium alloy material of mechanical property and lobe ring can be adopted and make by surface modification the biocompatibility that it has mechanics reliability simultaneously, workability is become reconciled.The curved surface of design can improve lobe leaf rigidity effectively, subtracts minor cusp vibration, improves the opening and closing of lobe leaf and produces the situation of eddy current, reducing impact shock friction, improve product service life and safety.Its curved surface sweeping style to be alleviated in valve in the impact of blood flow to lobe leaf, improves valve hemodynamics performance.The modification of lobe leaf surface has low-friction coefficient high abrasion and the rete of excellent biocompatibility, and energy digital preservation base material, improves the service life of artificial valve.
Claims (3)
1. a curved face type mechanical bilobed heart valve, be arranged on bi-lobate structure artificial mechanical heart flows through in the passage of lobe ring blood flow and keep blood directed flow and stop blood backflow, form primarily of lobe ring (30), suture ring (40) and the bivalve leaf mechanism be connected on lobe ring, it is characterized in that, bilobed flap mechanism adopts and is made up of symmetrically arranged lobus sinister lobe (10) and lobus dexter lobe (20), and the middle part of each leaf lobe is inner sunken face (15); Edge is contour plane (16); Avris two ends have lug (11 and 12) pivotally, to form matched in clearance hinge with the respective recess (31) on lobe ring.
2. the curved face type mechanical bilobed heart valve according to right 1, is characterized in that described lobe ring and lobe leaf are made up of metal or RESEARCH OF PYROCARBON.
3. the curved face type mechanical bilobed heart valve according to right 2, is characterized in that, lobe frame and lobe leaf have titanium or titanium alloy surface-treated layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529889.8U CN204219096U (en) | 2014-09-16 | 2014-09-16 | A kind of curved face type mechanical bilobed heart valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420529889.8U CN204219096U (en) | 2014-09-16 | 2014-09-16 | A kind of curved face type mechanical bilobed heart valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204219096U true CN204219096U (en) | 2015-03-25 |
Family
ID=52917251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420529889.8U Expired - Fee Related CN204219096U (en) | 2014-09-16 | 2014-09-16 | A kind of curved face type mechanical bilobed heart valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204219096U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108478310A (en) * | 2018-06-08 | 2018-09-04 | 倪鸣 | A kind of tricuspid valve forming ring of adjustable length and angle |
| CN108814771A (en) * | 2018-03-05 | 2018-11-16 | 何铭权 | A kind of two leaf bioprosthetic valves |
| EP3355800A4 (en) * | 2015-09-30 | 2019-05-08 | Clover Life Sciences Inc. | Trileaflet mechanical prosthetic heart valve |
| CN110801311A (en) * | 2019-04-17 | 2020-02-18 | 兰州兰飞医疗器械有限公司 | On-ring type artificial heart valve |
-
2014
- 2014-09-16 CN CN201420529889.8U patent/CN204219096U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3355800A4 (en) * | 2015-09-30 | 2019-05-08 | Clover Life Sciences Inc. | Trileaflet mechanical prosthetic heart valve |
| US10478288B2 (en) | 2015-09-30 | 2019-11-19 | Clover Life Sciences Inc. | Trileaflet mechanical prosthetic heart valve |
| US11224506B2 (en) | 2015-09-30 | 2022-01-18 | Clover Life Sciences Inc. | Trileaflet mechanical prosthetic heart valve |
| EP4014891A1 (en) * | 2015-09-30 | 2022-06-22 | Clover Life Sciences Inc. | Trileaflet mechanical prosthetic heart valve |
| US11813161B2 (en) | 2015-09-30 | 2023-11-14 | Clover Life Sciences Inc. | Trileaflet mechanical prosthetic heart valve |
| CN108814771A (en) * | 2018-03-05 | 2018-11-16 | 何铭权 | A kind of two leaf bioprosthetic valves |
| CN108814771B (en) * | 2018-03-05 | 2020-02-21 | 何铭权 | Two-leaf biological valve |
| CN108478310A (en) * | 2018-06-08 | 2018-09-04 | 倪鸣 | A kind of tricuspid valve forming ring of adjustable length and angle |
| CN108478310B (en) * | 2018-06-08 | 2024-05-03 | 倪一鸣 | Tricuspid valve forming ring with adjustable length and angle |
| CN110801311A (en) * | 2019-04-17 | 2020-02-18 | 兰州兰飞医疗器械有限公司 | On-ring type artificial heart valve |
| CN110801311B (en) * | 2019-04-17 | 2022-05-27 | 兰州兰飞医疗器械有限公司 | On-ring type artificial heart valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20170916 |