CN209332383U - Heart valve prosthesis forming ring - Google Patents
Heart valve prosthesis forming ring Download PDFInfo
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- CN209332383U CN209332383U CN201822061798.7U CN201822061798U CN209332383U CN 209332383 U CN209332383 U CN 209332383U CN 201822061798 U CN201822061798 U CN 201822061798U CN 209332383 U CN209332383 U CN 209332383U
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- annulus
- inner core
- heart valve
- valve prosthesis
- forming ring
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Abstract
The utility model relates to a kind of heart valve prosthesis forming rings, internal flexible jacket is wrapped in including inner core and by inner core, inner core includes the rear annulus being made of hard material and the elastic preceding annulus in arc-shaped, and preceding annulus is connected to form a closed cyclic structure with back lobe eye tail grafting.The utility model can effectively adapt to the compound movement of cardiac cycle while having preferable support strength.
Description
Technical field
The utility model relates to the technical fields of medical instrument, more particularly, to a kind of heart valve prosthesis forming ring.
Background technique
It is well known that human heart includes four valves, respectively aorta petal, bicuspid valve, pulmonary valve and tricuspid valve,
Four valves, which are each equipped with one-way valve, to be ensured not flow during blood cardiac cycle with the direction of mistake.In valvuloplasty
Art field, artificial valve forming ring are used to repair or rebuild the heart valve annulus of lesion, are suitable for valve and valve undertissue
Lesion is relatively light, leaflet mobility preferably, mainly expand because of annulus caused by pure valve (referring mainly to bicuspid valve) incompetence
Case.
On the basis of investigating the anatomical features and dynamic function feature of Chinese's normal heart, the shape of annulus of mitral valve is determined
Shape, size and design requirement.Clinical observation discovery, the shape of annulus of mitral valve is similar to ellipse, and big annulus is more straight, middle part slightly to
What is convex, accounts for about the 1/3 of entire ring week, and contracting variation of relaxing in cardiac cycle is smaller, mainly movement up and down；Annulus is in afterwards
Arc, length are about the 2/3 of whole circumference, contracting variation are relaxed in cardiac cycle clearly, ring systole phase, shortening rate week is
20%, area minification is 36.1%.
Forming ring mainly has flexi-ring, hard ring and elastic ring three classes currently on the market.Flexi-ring is complied with natural valve annulus and is included about
Movement of the flesh in cardiac cycle can more meet normal physiological status with the size and shape of Unlimited cyclomorphosis annulus
With anatomical structure compliance, although flexi-ring has good compliance, it is supported and forming effect is slightly worse, uses the trouble of flexi-ring
Person has found mitral regurgitation recurrence easily occur during follow-up；Although the hard ring long-term effect of metal hard inner core is stablized, energy
The incidence performed the operation again is substantially reduced, but destroys the annulus of mitral valve solid shape of physiological, loses periodic variation,
It is affected to the area and blood flow velocity of atrioventricular valve.
Utility model content
The purpose of the utility model is to provide a kind of heart valve prosthesises to form ring apparatus, with preferable support strength
While can effectively adapt to the compound movement of cardiac cycle.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of heart valve prosthesis forming ring is wrapped in internal flexible jacket, inner core packet including inner core and by inner core
Include the rear annulus being made of hard material and the elastic preceding annulus in arc-shaped, preceding annulus and back lobe eye tail grafting
It is connected to form a closed cyclic structure.
Heart valve prosthesis is made by the rear annulus of hard and the preceding annulus of elasticity by using above-mentioned technical proposal
Forming ring can effectively adapt to the compound movement of cardiac cycle while having preferable support strength.
The utility model is further arranged to: the end face at the head and the tail both ends of rear annulus offers jack, the side of jack respectively
Cricoid card slot is offered on wall；The end face at the head and the tail both ends of preceding annulus is separately provided for protruding into the elastic card in jack
Ring, snap ring are connected by connection sheet with preceding annulus, and when snap ring is inserted into jack, snap ring is opposite with card slot
Position is provided with the boss extending into card slot.
By using above-mentioned technical proposal, snap ring is inserted into jack, so that preceding annulus is connected with rear annulus,
To which quickly preceding annulus and rear annulus be docked.
The utility model is further arranged to: the one end of snap ring far from preceding annulus is to close up to the taper of contract.
By using above-mentioned technical proposal, convenient for snap ring is tucked into jack.
The utility model is further arranged to: snap ring, connection sheet and preceding annulus are integrally formed.
By using above-mentioned technical proposal, convenient for the production of preceding annulus, the production cycle of annulus before shortening.
The utility model is further arranged to: flexible jacket is medical knitted polyester.
By using above-mentioned technical proposal, blood caused by blood eddy generation is small when advantageously reducing valve-open or closing
The rupture of plate and cell prevents the generation of haemolysis.
The utility model is further arranged to: liner is provided between inner core and flexible jacket.
By using above-mentioned technical proposal, flexible jacket is protected by inner core, inner core is avoided to grind away flexible jacket.
The utility model is further arranged to: the inside bending of the inside core in intermediate position of rear annulus.
By using above-mentioned technical proposal, bicuspid valve is in systole phase aorta petal-bicuspid valve curtain protrusion, to make into
Type ring is consistent with aortic root-form of bicuspid valve curtain protrusion, prevents forming ring from causing slightly to obstruct to aorta efferent tract
Resistance.
The utility model is further arranged to: when inner core is in horizontal positioned, the minimum point of inner core is preceding annulus and back lobe
It is bent upwards in the middle part of the junction of ring, preceding annulus and rear annulus.
By using above-mentioned technical proposal, bicuspid valve is in systole phase, the connection in mitral preceding annulus portion and back lobe ring portion
Place's boundary fibrous triangle body moves down, by making preceding annulus and the junction of rear annulus be set as minimum point, to carry out to it
Evacuation.
The utility model is further arranged to: the cross section of inner core is ellipse.
By using above-mentioned technical proposal, the shape of inner core can preferably comply with the metamorphosis of cardiac cycle, the heart
Flesh compliance is good.
The utility model is further arranged to: offering several hollow holes in rear annulus.
It is different according to the quantity of the hollow hole opened up by using above-mentioned technical proposal, so as to annulus after adjusting
The rigidity of structure.
In conclusion the advantageous effects of the utility model are as follows:
1. making heart valve prosthesis forming ring that there is preferable support by the rear annulus of hard and the preceding annulus of elasticity
The compound movement of cardiac cycle can be effectively adapted to while intensity；
2. passing through the cooperation of snap ring and jack, so as to which preceding annulus and rear annulus are quickly carried out docking phase
Even.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of heart valve prosthesis forming ring；
Fig. 2 is the structural schematic diagram under preceding annulus and rear annulus separated position；
Fig. 3 is the structural schematic diagram of preceding annulus；
Fig. 4 is the cross-sectional view of preceding annulus and rear annulus junction.
In figure, 1, inner core；11, rear annulus；111, hollow hole；112, jack；113, card slot；12, preceding annulus；121, elastic
Snap ring；1211, boss；122, connection sheet；2, flexible jacket；3, liner.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It referring to Fig.1, is a kind of heart valve prosthesis forming ring disclosed by the utility model, including inner core 1 and by inner core
It is wrapped in internal flexible jacket 2, wherein flexible jacket 2 is made of mobile knitted polyester.Inner core 1 and flexible jacket 2 it
Between be provided with the liner 3 made of medical terylene felt pan.By liner 3 to separate flexible jacket 2 and inner core 1, to keep away
Exempt from inner core 1 to grind away flexible jacket 2.
Referring to Fig.1, Fig. 2, the shape of inner core 1 be simulation bicuspid valve in cardiac cycle complicated morphological change as a result,
The shape of its main body and the shape of mitral annulus are consistent.Inner core 1 includes that hard metal material or hard plastics are made
Rear annulus 11 and the preceding annulus 12 that there is elastic plastic material to be molded, preceding annulus 12 be in arc-shaped.Annulus afterwards
11 head and the tail both ends are connected to form a complete cyclic structure respectively with the head and the tail both ends grafting of preceding annulus 12.Annulus afterwards
11 in the bending of the inside of arc-shaped and the middle position phase inner core 1 of rear annulus 11.When inner core 1 is when in a horizontal state, inner core 1
Least significant end is the junction of preceding annulus 12 and rear annulus 11, and the middle part of preceding annulus 12 and rear annulus 11 is bent upwards.
Annulus 11 is to the interior lateral bend of inner core 1 after wherein, and mainly consideration bicuspid valve is in systole phase aorta petal-bicuspid valve
The protrusion of curtain prevents forming ring to actively to keep forming ring consistent with aortic root-form of bicuspid valve curtain protrusion
Arteries and veins efferent tract causes slightly to block；When inner core 1 is when in a horizontal state, the least significant end of inner core 1 is preceding annulus 12 and rear annulus 11
Junction, and the middle part of preceding annulus 12 and rear annulus 11 is bent upwards, and mainly consideration bicuspid valve is mitral in the systole phase
The junction boundary fibrous triangle body of preceding annulus portion and back lobe ring portion moves down.
Several hollow holes are offered on the length direction along rear annulus 11 on the ontology of rear annulus 11 referring to Fig. 2
111, it is different by the quantity of hollow hole 111 opened up, so as to the rigidity of structure of annulus 11 after adjusting.
Referring to Fig. 2, Fig. 3, the cross section of preceding annulus 12 and rear annulus 11 is ellipse.In the head and the tail two of rear annulus 11
Jack 112 is offered on the end face at end, and in conjunction with Fig. 4, cricoid card slot 113 is offered in the internal side wall of jack 112.Preceding
The head and the tail both ends of annulus 12 are separately provided for the snap ring 121 in the jack 112 after being inserted into annulus 11, wherein elasticity
Snap ring 121 is to be connected by connection sheet 122 with preceding annulus 12.12 one note of snap ring 121, connection sheet 122 and preceding annulus
It moulds.Connection sheet 122 is small along the length for the expansion that the length of the circumferential direction of preceding annulus 12 compares snap ring 121, from
And 121 forced contraction of snap ring is enable to deform.The outer dimension phase of the outer dimension of snap ring 121 and jack 112
Match.
When snap ring 121 is extend into jack 112, on the outer surface and 112 hole wall of jack of snap ring 121
The opposite position of card slot 113 is provided with the boss 1211 extending into card slot 113, wherein the width of boss 1211 and card slot 113
Width match.More than 1211 snap ring 121 of boss is integrally formed.
For the ease of snap ring 121 to be extend into jack 112, the one end of snap ring 121 far from preceding annulus 12 is
It closes up to the taper of contract.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (10)
1. a kind of heart valve prosthesis forming ring is wrapped in internal flexible jacket including inner core (1) and by the inner core (1)
(2), it is characterised in that: the inner core (1) includes the rear annulus (11) being made of hard material and elastic in circular arc
The preceding annulus (12) of shape, the preceding annulus (12) are connected to form a closed cyclic annular knot with rear annulus (11) head and the tail grafting
Structure.
2. heart valve prosthesis forming ring according to claim 1, it is characterised in that: the head and the tail two of annulus (11) after described
The end face at end offers jack (112) respectively, offers cricoid card slot (113) on the side wall of the jack (112)；Before described
The end face at the head and the tail both ends of annulus (12) is separately provided for the snap ring (121) protruded into jack (112), the elasticity
Snap ring (121) is connected by connection sheet (122) with the preceding annulus (12), and the snap ring (121) is inserted into the jack
(112) when in, the snap ring (121) and the card slot (113) opposite position are provided with and extend into card slot (113)
Boss (1211).
3. heart valve prosthesis forming ring according to claim 2, it is characterised in that: the snap ring (121) is separate
One end of preceding annulus (12) is to close up to the taper of contract.
4. heart valve prosthesis forming ring according to claim 2, it is characterised in that: the snap ring (121), connection
Piece (122) and preceding annulus (12) are integrally formed.
5. heart valve prosthesis forming ring according to claim 1, it is characterised in that: the flexible jacket (2) is medical
Knitted polyester.
6. heart valve prosthesis forming ring according to claim 1, it is characterised in that: the inner core (1) and the flexibility
Liner (3) are provided between housing (2).
7. heart valve prosthesis forming ring according to claim 1, it is characterised in that: the middle part of annulus (11) after described
Position is bent to the inside of inner core (1).
8. heart valve prosthesis forming ring according to claim 1, it is characterised in that: the inner core (1) is put in level
When setting, the minimum point of the inner core (1) is the junction of preceding annulus (12) and rear annulus (11), the preceding annulus (12) and back lobe
Ring is bent upwards in the middle part of (11).
9. heart valve prosthesis forming ring according to claim 1, it is characterised in that: the cross section of the inner core (1) is
Ellipse.
10. heart valve prosthesis forming ring according to claim 1, it is characterised in that: opened up in annulus (11) after described
There are several hollow holes (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822061798.7U CN209332383U (en) | 2018-12-08 | 2018-12-08 | Heart valve prosthesis forming ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822061798.7U CN209332383U (en) | 2018-12-08 | 2018-12-08 | Heart valve prosthesis forming ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209332383U true CN209332383U (en) | 2019-09-03 |
Family
ID=67756526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822061798.7U Active CN209332383U (en) | 2018-12-08 | 2018-12-08 | Heart valve prosthesis forming ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209332383U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452039A (en) * | 2021-09-28 | 2022-05-10 | 上海翰凌医疗器械有限公司 | Mitral valve forming ring |
-
2018
- 2018-12-08 CN CN201822061798.7U patent/CN209332383U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452039A (en) * | 2021-09-28 | 2022-05-10 | 上海翰凌医疗器械有限公司 | Mitral valve forming ring |
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