CN106175845B - A kind of mitral leaflet reparation closing device - Google Patents
A kind of mitral leaflet reparation closing device Download PDFInfo
- Publication number
- CN106175845B CN106175845B CN201610620603.0A CN201610620603A CN106175845B CN 106175845 B CN106175845 B CN 106175845B CN 201610620603 A CN201610620603 A CN 201610620603A CN 106175845 B CN106175845 B CN 106175845B
- Authority
- CN
- China
- Prior art keywords
- pedestal
- pull rod
- mitral leaflet
- hinge bar
- armed lever
- Prior art date
- 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.)
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Classifications
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- 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
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
- A61F2/2463—Implants forming part of the valve leaflets
Abstract
The invention discloses a kind of mitral leaflet reparation closing devices, including pedestal, the pull rod that is arranged through pedestal and can be gone up and down relative to pedestal, by the hinge bar of pull rod drives edge pull rod moved axially and can be rotated relative to pull rod, one end is fixed in pedestal and the other end is articulated with the link assembly of hinge bar, and be rotationally connected with pull rod connection hinge bar one end and the metal clips symmetrical about hinge bar；The link assembly sets there are two and is symmetrically set in pedestal both ends, and rotating tension bar clamps the position to be clamped of mitral leaflet by metal clips and link assembly.The mitral leaflet reparation closing device can realize the quick capture of mitral leaflet through the invention, reduce operation time, reduce operation risk, and structure is simple, production cost is low, reduces the medical expense of patient.
Description
Technical field
The present invention relates to medical instrument correlative technology field more particularly to a kind of mitral leaflet reparation closing devices.
Background technique
Structure is complicated for existing mitral leaflet reparation closing device, and Preoperative Method is cumbersome, deals with easy appearance improperly
The risks such as postoperative infection, and it is longer in the presence of operation transportation system path with closing device using existing mitral leaflet reparation,
Easily there is the problems such as atrial septal defect and too long operation time.For to a certain extent, all can to doctor and patient
Great inconvenience is brought, operation risk, treatment time and the medical expense of patient are increased.
Summary of the invention
The purpose of the present invention is to provide a kind of mitral leaflet reparation closing devices, difficult to reach simplified surgical procedure
Degree reduces operation time, improves the purpose of surgical effect.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of mitral leaflet reparation closing device, including pedestal are arranged and can go up and down relative to pedestal through pedestal
Pull rod, by pull rod drives edge pull rod axial movement and can relative to pull rod rotate hinge bar, one end is fixed in and pedestal
And the other end is articulated with the link assembly of hinge bar, and is rotationally connected with pull rod and connects one end of hinge bar and about hinge bar
Symmetrical metal clips；The link assembly sets there are two and is symmetrically set in pedestal both ends, and rotating tension bar is by bicuspid valve valve
The position to be clamped of leaf is clamped by metal clips and link assembly.
Further, the link assembly includes symmetry riveting in the galianconism bar at pedestal both ends, is articulated with galianconism bar and does not connect
Connect pedestal one end and the long armed lever hinged with hinge bar.
Further, each long armed lever include the first long armed lever and with its integrally formed second long armed lever, it is described
The angle that first long armed lever and the second long-armed bar are formed is more than or equal to 90 degree；One end that the galianconism bar is not connected with pedestal is articulated with
The intersection location of the first long armed lever and the second long armed lever, the second long armed lever are articulated with hingedly far from one end of galianconism bar
Bar.
Further, the metal clips side opposite with the first long armed lever is equipped with pawl.
Further, the described first long armed lever side opposite with metal clips offers through slot along its length.
It further, further include drawing steel wire, the both ends of the drawing steel wire extend through the metal elastic of hinge bar two sides
Piece simultaneously passes through pedestal.
Further, the range at the opening and closing angle of two first long armed levers is 0 ° -217 °.
Further, the maximum exhibition angle positioned at the metal clips of the hinge bar two sides is 120 °.
Further, the pedestal is connect with pull rod by being threadedly engaged, and the metal clips is sheathed on pull rod and passes through C
The fastening of type snap ring rotate it can relative to pull rod.
Further, the pedestal, pull rod, hinge bar and link assembly are made of biocompatible material, the gold
Belong to elastic slice to be made of shape-memory material.
Beneficial effects of the present invention: the fast of mitral leaflet can be realized by the mitral leaflet reparation closing device
Speed captures, and reduces operation time, reduces operation risk, and structure is simple, production cost is low, reduces the medical treatment of patient
Expense.
Detailed description of the invention
Fig. 1 is the schematic perspective view of mitral leaflet reparation closing device of the present invention；
Fig. 2 is the main view of mitral leaflet reparation closing device of the present invention；
Fig. 3 is the annexation figure of pull rod and metal clips of the present invention；
Fig. 4 is the closed state figure of mitral leaflet reparation closing device of the present invention.
In figure:
1, pedestal；2, pull rod；21, external screw thread；3, hinge bar；4, link assembly；41, galianconism bar；42, long armed lever；421,
First long armed lever；422, the second long armed lever；5, metal clips；51, pawl；52, perforating；6, c-type snap ring.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
A kind of mitral leaflet reparation closing device is present embodiments provided, as illustrated in fig. 1 and 2, the closing device packet
Include pedestal 1, pull rod 2, hinge bar 3, link assembly 4 and metal clips 5, wherein
The pull rod 2 is arranged and can go up and down relative to pedestal 1 through pedestal 1.Specifically, referring to Fig. 2 and Fig. 3, the bottom
Seat 1 is equipped with threaded hole, and the pull rod 2 is equipped with the external screw thread 21 being adapted to threaded hole, can make pull rod 2 by screwing pull rod 2
Opposite pedestal 1 moves up and down.
The link assembly 4 sets there are two and is symmetrically set in the both ends of pedestal 1, and one end of each link assembly 4 is affixed
In pedestal 1 and the other end is articulated with hinge bar 3.Specifically, the link assembly 4 includes symmetry riveting in the short of 1 both ends of pedestal
Armed lever 41 is articulated with galianconism bar 41 and is not connected with 1 one end of pedestal and the long armed lever 42 hinged with hinge bar 3.Wherein each length
Armed lever 42 include the first long armed lever 421 and with its integrally formed second long armed lever 422, the first long armed lever 421 and second
The angle that long armed lever 422 is formed is more than or equal to 90 degree.It is long that one end that the galianconism bar 41 is not connected with pedestal 1 is articulated with described first
The intersection location of armed lever 421 and the second long armed lever 422, the second long armed lever 422 are articulated with far from one end of galianconism bar 41
Extension bar 3.
The hinge bar 3 by 2 drives edge pull rod 2 of pull rod axial movement and can be rotated relative to pull rod 2, the pull rod 2
Hinge bar 3 is rotationally connected with across one end of pedestal 1.Since hinge bar 3 can rotate and hinge bar 3 and the relative to pull rod 2
Two long armed levers 422 are hinged, and the axis direction of the articulated shaft of connection hinge bar 3 and the second long armed lever 422 is perpendicular to hinge bar 3
Central axial direction, therefore when screwing pull rod 2, the hinge bar 3 can't be rotated with pull rod 2, when pull rod 2 being avoided to rotate
Hinge bar 3 rotates therewith and causes to interfere.When screwing pull rod 2, pull rod 2 can be moved up and down relative to pedestal 1, and band simultaneously
Hinge bar 3 is moved along the axial movement of pull rod 2, while hinge bar 3 will drive long armed lever 42 to be respectively relative to hinge bar 3, galianconism bar
41 rotations, so that two the first long 421 shapes of armed lever are at a certain angle.
The metal clips 5 is rotationally connected with pull rod 2 and connects one end of hinge bar 3 and symmetrical about hinge bar 3.Ginseng
According to Fig. 2 and Fig. 3, the metal clips 5 is sheathed on pull rod 2 and rotate it can relative to pull rod 2 by the fastening of c-type snap ring 6.Tool
Body, the center of the metal clips 5 is equipped with through-hole, and the pull rod 2 is stepped stem, and the diameter of the through-hole is greater than institute
The diameter that pull rod 2 connects one end of hinge bar 3 is stated, less than the diameter of one end that pull rod 2 is not connected with hinge bar 3.By metal clips 5
Pull rod 2 is sheathed on to be not connected with one end of hinge bar 3 and then c-type snap ring 6 is sheathed on one end that pull rod 2 is not connected with hinge bar 3
On, the pull rod 2 at the end is rotationally connected with hinge bar 3 and the upper surface of c-type snap ring 6 is made to be tightly attached to the lower end surface of hinge bar 3.By
It is greater than the diameter that pull rod 2 connects one end of hinge bar 3 in through-hole diameter, so the metal clips 5 is not when screwing pull rod 2
It can be rotated with pull rod 2.
In the present embodiment, referring to Figures 1 and 2, if the side opposite with the first long armed lever 421 of the metal clips 5 is equipped with
Dry pawl 51, the pawl 51 are hurtless measure pawl, i.e., will not cause to mitral leaflet tissue when capturing mitral leaflet
Wound increases the friction of metal clips 5 Yu mitral leaflet by pawl 51, can fast and effectively pass through link assembly 4
Capture mitral leaflet.
The first long armed lever 421 side opposite with metal clips 5 offers through slot 4211 along its length.It is two
Cusp leaflet provides accommodation space.
By pull rod 2 adjust two the first long armed levers 421 opening and closing angle when, the opening and closing angular range be 0 °-
217°。
In the present embodiment, the pedestal 1, pull rod 2, hinge bar 3 and link assembly 4 are made of biocompatible material,
Stainless steel, polymer, pyrolytic carbon, silicone resin, polytetrafluoroethylene (PTFE) can be selected to be formed by combining.The metal clips 5 is by shape
Memory material is made.NiTi base memorial alloy can be used in shape-memory material described in the present embodiment, such as Nitinol, titanium nickel niobium
Alloy, titanium Ni-Pd alloy etc. can also be used copper-based memory alloy, such as copper gold kirsite, albronze, copper-tin alloy, may be used also
Using Fe-based shape memory alloy, such as iron palladium, FeMnSi alloy.At the opening and closing angle for adjusting two the first long armed levers 421 by pull rod 2
When spending, the metal clips 5 will be unfolded according to shape memory property, positioned at 3 two sides of hinge bar metal clips 5 most
The angle great Zhan is 120 °, and the exhibition angle refers to that the metal clips 5 positioned at 3 two sides of hinge bar opens the angle formed.
In the present embodiment, the mitral leaflet reparation closing device further includes drawing steel wire (not shown), institute
The both ends for stating drawing steel wire extend through the metal clips 5 of 3 two sides of hinge bar and pass through pedestal 1.As shown in Figure 1, the metal
Elastic slice 5 is equipped with perforating 52, and the both ends for pulling steel wire are each passed through wearing on the metal clips 5 of 3 two sides of hinge bar
Pedestal 1 is passed through behind hole 52.By adjusting the both ends of drawing steel wire, the position of adjustable metal clips 5 and its exhibition angle size,
Convenient for capturing mitral leaflet faster.After adjusting, drawing steel wire can be extracted out from one end, influenced to prevent drawing steel wire
Surgical procedure.
Other connectors used in the present embodiment are made of biocompatible material.
The mountable intervention that heart is carried out in transportation system of closing device of mitral leaflet reparation described in the present embodiment
Operation.The present embodiment illustrates the specific work process of the closing device so that mitral valve " edge is to edge " closure is repaired as an example.
The mitral leaflet reparation closing device is before entering ventricle, generally closed state (referring to Fig. 4), and
It is placed into transportation system, guarantees its fluency intervened via apex of the heart channel, prevent the excessive influence mitral leaflet in space
Its hetero-organization.After the apex of the heart punctures, transportation system enters in left ventricle under the guidance of contrast apparatus, by transportation system
Operation handle adjust closing device position two the first long armed levers are made by adjusting yoke 2 after reaching target bearing
421 open, while metal clips 5 is unfolded according to its shape memory function, and adjust metal by drawing steel wire and pull rod 2
The expanded angle of elastic slice 5, in order to capture the edge of mitral valve faster.When the first long armed lever 421 touches bicuspid valve
When film, loosen the drawing steel wire of control metal clips 5, so that the metal clips 5 for being located at 3 both ends of hinge bar is in 120 degree, metal elastic
Mitral valve edge is clamped in piece 5 and the first long cooperation of armed lever 421, then extracts metal clips 5 out.Make two by adjusting yoke 2
A first long armed lever 421 is gradually closed, and realizes the clamping to mitral valve edge by metal clips 5 and the first long armed lever 421.
When aforesaid operations are completed in confirmation, after mitral regurgitation is eased, entire transportation system is withdrawn, closing device stays in bicuspid valve
At film edge.
The mitral leaflet reparation closing device can realize the quick capture of mitral leaflet through this embodiment, drop
Low operation time reduces operation risk, and structure is simple, and production cost is low, reduces the medical expense of patient.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of mitral leaflet reparation closing device, which is characterized in that including pedestal (1), through pedestal (1) setting and can
Relative to pedestal (1) lifting pull rod (2), by pull rod (2) drives edge pull rod (2) axial movement and can be relative to pull rod (2)
The hinge bar (3) of rotation, one end is fixed in pedestal (1) and the other end is articulated with the link assemblies (4) of hinge bar (3), Yi Jizhuan
One end of the dynamic connection hinge bar (3) for being connected to pull rod (2) and the metal clips (5) symmetrical about hinge bar (3)；It is described
Link assembly (4) sets there are two and is symmetrically set in pedestal (1) both ends, and rotating tension bar (2) is by the position to be clamped of mitral leaflet
It is clamped by metal clips (5) and link assembly (4)；
The pedestal (1) is connect with pull rod (2) by being threadedly engaged.
2. mitral leaflet reparation closing device according to claim 1, which is characterized in that the link assembly (4)
Including symmetry riveting in the galianconism bar (41) at pedestal (1) both ends, be articulated with galianconism bar (41) be not connected with pedestal (1) one end and with
The hinged long armed lever (42) of hinge bar (3).
3. mitral leaflet reparation closing device according to claim 2, which is characterized in that each long armed lever
(42) include the first long armed lever (421) and with its integrally formed second long armed lever (422), the first long armed lever (421) and
The angle that second long armed lever (422) is formed is more than or equal to 90 degree；One end that the galianconism bar (41) is not connected with pedestal (1) is articulated with
The intersection location of the first long armed lever (421) and the second long armed lever (422), the second long armed lever (422) is far from galianconism bar
(41) one end is articulated with hinge bar (3).
4. mitral leaflet reparation closing device according to claim 3, which is characterized in that the metal clips (5)
Opposite side is equipped with pawl (51) with the first long armed lever (421).
5. mitral leaflet reparation closing device according to claim 4, which is characterized in that the first long armed lever
(421) through slot (4211) are offered along its length with metal clips (5) opposite side.
6. mitral leaflet reparation closing device according to claim 5, which is characterized in that it further include drawing steel wire,
The both ends of the drawing steel wire extend through the metal clips (5) of hinge bar (3) two sides and pass through pedestal (1).
7. mitral leaflet reparation closing device according to claim 3, which is characterized in that two described first long-armed
The range at the opening and closing angle of bar (421) is 0 ° -217 °.
8. mitral leaflet reparation closing device according to claim 7, which is characterized in that be located at the hinge bar
(3) the maximum exhibition angle of the metal clips (5) of two sides is 120 °.
9. mitral leaflet reparation closing device according to claim 1, which is characterized in that the metal clips (5)
It is sheathed on pull rod (2) and rotate it can relative to pull rod (2) by c-type snap ring (6) fastening.
10. mitral leaflet reparation closing device according to claim 1, which is characterized in that the pedestal (1) is drawn
Bar (2), hinge bar (3) and link assembly (4) are made of biocompatible material, and the metal clips (5) is by shape memory
Material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610620603.0A CN106175845B (en) | 2016-08-01 | 2016-08-01 | A kind of mitral leaflet reparation closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610620603.0A CN106175845B (en) | 2016-08-01 | 2016-08-01 | A kind of mitral leaflet reparation closing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106175845A CN106175845A (en) | 2016-12-07 |
| CN106175845B true CN106175845B (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610620603.0A Active CN106175845B (en) | 2016-08-01 | 2016-08-01 | A kind of mitral leaflet reparation closing device |
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| US8449599B2 (en) | 2009-12-04 | 2013-05-28 | Edwards Lifesciences Corporation | Prosthetic valve for replacing mitral valve |
| WO2016090308A1 (en) | 2014-12-04 | 2016-06-09 | Edwards Lifesciences Corporation | Percutaneous clip for repairing a heart valve |
| CN110433010A (en) | 2015-05-14 | 2019-11-12 | 爱德华兹生命科学公司 | Heart valve sealing device and its delivery apparatus |
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