CN106388880A - Mitral annulus shrinkage intervention device - Google Patents
Mitral annulus shrinkage intervention device Download PDFInfo
- Publication number
- CN106388880A CN106388880A CN201610921957.9A CN201610921957A CN106388880A CN 106388880 A CN106388880 A CN 106388880A CN 201610921957 A CN201610921957 A CN 201610921957A CN 106388880 A CN106388880 A CN 106388880A
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- China
- Prior art keywords
- nail
- annulus
- contracting
- pin
- locating rod
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00623—Introducing or retrieving devices therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00646—Type of implements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
Abstract
The invention provides a mitral annulus shrinkage intervention device. The mitral annulus intervention device comprises a guide pipe, an annulus shrinkage hollow line, a starting positioning rod, a guide nail fixed rod and an annulus shrinkage forming unit. The outer side wall of the annular shrinkage hollow line is provided with a nail. The annular shrinkage hollow line is arranged in the guide pipe and passes through the guide pipe. The starting positioning rod is also arranged in the guide pipe and passes through the guide pipe, the end portion of the annulus shrinkage hollow line located at an end opening at the distal end of the guide pipe is moveably connected with a positioning end of the starting positioning rod; the guide nail fixed rod is slidingly arranged in a hollow cavity in the annulus shrinkage hollow line and passes through the hollow cavity. The annulus shrinkage hollow line is firstly nailed on the cingulum of the rear portion of mitral annulus, annulus shrinkage forming unit is then controlled to be shrank so as to drive the cingulum of the rear portion of mitral annulus to be shrank to achieve the closure of the mitral annulus. The mitral annulus shrinkage intervention device can be used in a surgery in heart beating process, and the optimal control of shrinkage degree can be performed, so that the degree of the closure of the mitral annulus reaches the best state.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly, to a kind of annulus of mitral valve contracting intervention device.
Background technology
Mitral lesion is common valve disorder in Advancement of Cardiac Valve Surgery therapy field, and mitral valve leaflet closes not
It is common one kind entirely.Mitral valve leaflet dysraphism, during leading to left ventricular contraction, blood significantly reversely flows back towards atrium sinistrum, this
Symptom is called mitral regurgitation.At present, for the defect of this kind of mitral valve leaflet dysraphism, mostly sutured after chest using opening
Operation, not only wound is big, and the shape of the error due to suture and valve such as is not inconsistent at the reason, and often surgical effect is not
Good.
Content of the invention
Drawbacks described above for prior art and problem, it is an object of the invention to provide a kind of annulus of mitral valve contracting intervention dress
Put.Ring contracting is carried out using intervention operation to bicuspid valve, ring contracting is uniform, good operation effect, and wound is little.
In order to achieve the above object, the present invention provides following technical scheme：
A kind of annulus of mitral valve contracting intervention device, including conduit, ring contracting tubular wire, initial locating rod, the solid bar of guide pin and ring
Contracting forming unit, the lateral wall of described ring contracting tubular wire has nail thorn；Described ring contracting tubular wire is located in described conduit, institute
State initial locating rod to be located in described conduit, the end of the ring contracting tubular wire positioned at distal end of catheter port and initial locating rod
Positioning end be flexibly connected；The solid bar of described guide pin slides and is located in the middle cavity of described ring contracting tubular wire；
The end of ring contracting tubular wire is fixed on the side intersection of mitral front lobe and back lobe by described initial locating rod,
Described conduit is controlled to exit, correspondingly, described ring contracting tubular wire exposes；The ring contracting tubular wire that the solid bar control of described guide pin is exposed
Annulus along back lobe are enclosed and are set, and the nail caltrop of ring contracting tubular wire is entered on the ring wall of annulus, and described ring contracting tubular wire is in bicuspid valve
The opposite side intersection of front lobe and back lobe stop and fix；Described ring contracting forming unit will enclose the ring contracting being located in back lobe annulus
The annulus of annulus and front lobe that tubular wire carries out being contracted to back lobe can close.
Further, described ring contracting forming unit includes ring contracting silk, locating pin and terminates locating rod, and described ring contracting silk wears
In the middle cavity of described ring contracting tubular wire, one end is fixing even with the end of the initial locating rod of the connection of described ring contracting tubular wire
Connect, the other end connects described locating pin；Described locating pin is connected with the described end terminating locating rod；Described termination locating rod control
Tensioning ring contracting silk processed, ring contracting tubular wire is shunk after putting in place, terminates locating rod and hammer into locating pin in lobe wall, that is, complete to be shrunk to
Type.
Further, described ring contracting forming unit also includes low temperature memory excitation structure, and described ring contracting tubular wire is using note
Recall alloy to prepare；Described low temperature memory excitation structure includes cryogenic gas storage capsule, and described cryogenic gas storage capsule is fixed
The connection being placed on described ring contracting tubular wire initiates in the end of locating rod；Release low temperature after this cryogenic gas storage capsule is rupturable
Gas is to the middle cavity of ring contracting tubular wire.
Further, also include exiting sleeve pipe, the described end exiting sleeve pipe has the positioning with described initial locating rod
The lateral wall structural member in mating connection at end；After ring shortens type into, the described sleeve pipe that exits is set in described initial locating rod
Outward, and by its end it is connected with the positioning end of described initial locating rod, applies external force, disconnect initial locating rod and ring contracting tubular wire
End connection, initial locating rod exits by conduit jointly with exiting sleeve pipe.
Further, the end face of end that the described positioning end with initial locating rod exiting sleeve pipe is connected is also connected with store up
Deposit capsule puncturing structure part；When the end exiting sleeve pipe is connected with the positioning end of described initial locating rod, this storage capsule punctures knot
It is intracapsular, by cryogenic gas storage capsule damaged release cryogenic gas to ring contracting tubular wire that component can puncture entrance cryogenic gas storage
Middle cavity in.
Further, the positioning end of described initial locating rod is adopted with the end of described ring contracting tubular wire and threadeds；Institute
That states the positioning end of initial locating rod and the described end exiting sleeve pipe is connected by the threaded of contrary hand of spiral.
Further, the solid bar of described guide pin includes control bar and nail fixed end, and described nail fixed end includes spring part and elasticity
Solid pad；One end of described spring part connects described elastic solid pad, and the other end connects described control bar.
Further, the solid bar of described guide pin includes control bar and the solid head of nail, and described control bar is interior using relatively slide
Between pipe and outer tube, and inner tube and outer tube, damping structure is set, so that both just can be relatively slided under external force；Described nail is solid
Head has accommodating chamber, the solid pin standing groove of setting nail and ejecting mechanism in this accommodating chamber, and the solid pin standing groove of described nail is fixedly installed
In described accommodating chamber；Described ejecting mechanism is arranged in the solid pin standing groove of described nail, fixing end and the one of the solid pin standing groove of nail
End face is fixedly connected, and conflicts when the limit ejects state and follow closely the end face of the other end of pin standing groove admittedly in free end, and the solid pin of this nail is put
The other end putting groove is pin end；
Corresponding pin hole is opened up in going out of the solid pin standing groove of nail on the bottom land at pin end and the end face of the solid head of nail；With placement
Thimble is connected on the corresponding end face of said inner tube of the pin hole of groove；With thimble and pin hole mode point-blank, nail is solid
Head is movably connected in the end of described outer tube.
Further, described ejecting mechanism adopts spring ejection mechanism, the fixing end of spring and the one of the solid pin standing groove of nail
End face is fixedly connected, and conflicts in free extended configuration and follow closely the end face of the other end of pin standing groove admittedly in free end；And on free end
Connect the angled slide block being adapted with the shape of the solid pin of nail.Ensure that the solid pin of nail integrally ejects movement.
Further, connect the rubber packing opening up otch in described pin hole.
Further, described nail thorn is divided into multigroup, interval setting between adjacent every group, and follow closely the tip of thorn have multigroup fall
Hook.
A kind of annulus of mitral valve contracting intervention device that the present invention provides, ring contracting tubular wire is followed closely first admittedly in the annulus of back lobe,
Then the hollow linear shrinkage of control ring contracting, the ring hollow linear shrinkage of contracting, and then drive the annulus of back lobe to shrink, realize mitral closing
Close.And can be performed the operation during heartbeat, control can be optimized to the degree shunk, make mitral closure
Degree optimum state significantly.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, also may be used
So that other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the cross section structure diagram of the annulus of mitral valve contracting intervention device of the present invention；
Fig. 2 is the cross section structure diagram of the nail thorn of the annulus of mitral valve contracting intervention device of the present invention；
Fig. 3 is the cross section structure diagram of currently preferred annulus of mitral valve contracting intervention device；
Fig. 4 is a kind of cross section structure diagram of the solid bar of guide pin of the present invention
Fig. 5 is the cross section structure diagram of the solid head of nail of the solid bar of guide pin shown in Fig. 4.
Specific embodiment
Below in conjunction with embodiments of the invention, technical scheme is clearly and completely described it is clear that
Described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the enforcement in the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, broadly fall into
The scope of protection of the invention.
A kind of annulus of mitral valve contracting intervention device of the present invention, according to Fig. 1 to Fig. 3, is described, empty including conduit 1, ring contracting
Heart line 2, initial locating rod 3, the solid bar 4 of guide pin and ring contracting forming unit, the lateral wall of described ring contracting tubular wire 2 has nail thorn
21；Described nail thorn 21 is divided into multigroup interval setting, and follows closely the tip of thorn 21 and have multigroup barb it is ensured that the fastness that hammers into.
Described ring contracting tubular wire 2 is located in described conduit 1, and described initial locating rod 3 is located in described conduit 1, position
In conduit 1 remote port (far-end is defined for near-end based on peripheral operation end) place ring contracting tubular wire 2 end with
The positioning end 31 of initial locating rod 3 is flexibly connected；The solid bar 4 of described guide pin slides and is located in the hollow of described ring contracting tubular wire 2
In chamber.
Control described initial locating rod that the end of ring contracting tubular wire is fixed on a top-cross of mitral front lobe and back lobe
At boundary, described conduit 2 is controlled successively to exit, described ring contracting tubular wire 2 exposes successively；The solid bar 4 of described guide pin controls and successively reveals
The ring contracting tubular wire 2 going out encloses and sets along the annulus of back lobe, and the nail thorn 21 of ring contracting tubular wire 2 is hammered on the ring wall of annulus, described
Ring contracting tubular wire 2 stops and fixes in the opposite side intersection of mitral front lobe and back lobe；Described ring contracting forming unit will enclose
The annulus of annulus and front lobe that the ring contracting tubular wire 2 being located in back lobe annulus carries out being contracted to back lobe can close.
The solid bar 4 of described guide pin includes control bar 41 and nail fixed end 42, and described nail fixed end 42 includes spring part 421 and elasticity
Solid pad 422 (rubber cushion)；One end of described spring part 421 connects described elastic solid pad 422, and the other end connects described control bar
41.Control the solid bar 4 of guide pin, so that each trifle ring contracting tubular wire 2 successively exposing is enclosed and set along the shape of the annulus of back lobe, and push away
The solid bar 4 of action-oriented nail makes its elastic solid pad 422 (rubber cushion) compress the inwall of ring contracting tubular wire 2, by the outside of ring contracting tubular wire 2
Nail thorn 21 on wall hammers in the annulus wall of back lobe, completes to guide and follow closely solid function.
As long as heretofore described ring contracting forming unit is realized being received enclosing the ring contracting tubular wire 2 being located in back lobe annulus
The function that the annulus of the annulus and front lobe that are reduced to back lobe can close.Concrete structure or specific implementation do not limit.
A kind of preferred ring contracting forming unit is provided, including ring contracting silk 51, locating pin 52 and termination locating rod 53, described ring in the present invention
Contracting silk 51 is located in the middle cavity of described ring contracting tubular wire 2, and one end initiates locating rod 3 with the connection of described ring contracting tubular wire 2
End be fixedly connected, the other end connect described locating pin 32；Described locating pin 32 is with the described end terminating locating rod 53 even
Connect；Described termination locating rod 53 controls tensioning ring contracting silk 51, ring contracting tubular wire 2 is shunk after putting in place, terminating locating rod 53 will determine
Position nail 52 hammers in lobe wall, that is, complete to shrink shaping.The tip of locating pin 52 also has multigroup barb it is ensured that position is firm
Property.Ring contracting silk 51 adopts surgical thread.
Contraction in order to optimize ring contracting tubular wire 2 further is molded, and the technical scheme that the present invention optimizes further is, described
Ring contracting forming unit also includes low temperature memory excitation structure 54, and described ring contracting tubular wire 2 is prepared using memorial alloy；Described
Low temperature memory excitation structure 54 includes cryogenic gas storage capsule 54, and described cryogenic gas storage capsule 54 fixed placement contracts in described ring
The connection of tubular wire 2 initiates in the end 22 of locating rod；After this cryogenic gas storage capsule 54 is rupturable, release cryogenic gas is to ring
In the middle cavity of contracting tubular wire 2, ring contracting tubular wire 2 is made voluntarily to revert to contraction state during this low temperature, then again by ring contracting silk
51 tighten up after fixation complete ring and shorten type into.
In the present invention, for the annulus of mitral valve contracting intervention device being additionally arranged low temperature memory excitation structure 54, correspondingly increase
One exits sleeve pipe, and the described end exiting sleeve pipe has is matched with the lateral wall of the positioning end 31 of described initial locating rod 3
The structural member connecting.Specifically, the positioning end 31 of described initial locating rod 3 and the end of described ring contracting tubular wire 2 adopt screw thread
Connect；The positioning end 31 of described initial locating rod 3 and the spiral shell being connected by opposite threads direction of the described end exiting sleeve pipe
Line connects.After ring shortens type into, the described sleeve pipe that exits is set in outside described initial locating rod 3, and by its end with described
The positioning end 31 of beginning locating rod 3 connects, and applies external force, and screws the positioning end 31 of the end exiting sleeve pipe and initial locating rod 3
Threaded, this external force enables to exit sleeve pipe and cryogenic gas storage capsule 54 is extruded rupture.Meanwhile, in the process screwing
In, the positioning end 31 of initial locating rod 3 is screwed out with threadeding of ring contracting tubular wire 2, and both connections disconnect, and initial fixed
Position bar 3 is exited by conduit jointly with exiting sleeve pipe.
Extruding in order to ensure cryogenic gas storage capsule 54 ruptures, in described determining with initial locating rod 3 that be exiting sleeve pipe
It is also connected with storage capsule puncturing structure part on the end face of end that position end 31 connects；When the end exiting sleeve pipe and described initial positioning
When the positioning end 31 of bar 3 connects, it is intracapsular, by cryogenic gas that this storage capsule puncturing structure part can puncture entrance cryogenic gas storage
Storage capsule damaged release cryogenic gas is to the middle cavity of ring contracting tubular wire.
In the present invention, the solid steadiness on the ring wall of the annulus of back lobe of ring contracting tubular wire 2 nail, therefore, the present invention also carries
For a kind of structure of the solid bar 4 of preferred guide pin, while guide pin is solid, the solid bar 4 of guide pin increases putting of the solid pin of nail
Put chamber, compress will be solid for the nail caltrop on ring contracting tubular wire 2 while, the solid pin of nail being directed to follow closely in solid bar 4 hammers into back lobe again
The ring wall of annulus on, increase steadiness.Specifically, as shown in Figure 4 and Figure 5, the solid bar 4 of described guide pin includes control bar 43 He
Nail solid 44, described control bar 43 sets using between the inner tube 431 relatively slided and outer tube 432, and inner tube 431 and outer tube 432
Put damping structure (not shown), so that both just can be relatively slided under external force；As damping spring.
Described nail has accommodating chamber 441 for solid 44, specifically can adopt open trough, opening end is the connection end of outer tube 432.
The solid pin standing groove 442 of setting nail and ejecting mechanism 443 in this accommodating chamber 441, pin standing groove 442 is fixedly installed on described nail admittedly
In described accommodating chamber 441.The described nail flat box that pin standing groove 442 adopts section and follows closely the consistent strip of solid pin 45 shape admittedly,
Multiple nails pin 45 admittedly placed side by side in the solid pin standing groove 442 of this nail, forms the solid faller gill of nail, can adopt between the solid pin 45 of multiple nails
Medical adhesive bonds, as long as controlling cohesive force to be less than ejecting force.Described ejecting mechanism 443 is arranged on the solid pin of described nail and puts
Put in groove 442, fixing end is fixedly connected with the end face of the solid pin standing groove 442 of nail, conflict in limit ejection state in free end
The end face of the other end of the solid pin standing groove 442 of nail, the other end of the solid pin standing groove 442 of this nail is pin end 444.Specifically, institute
State ejecting mechanism 443 and adopt spring ejection mechanism, the fixing end of spring 448 is fixing even with the end face of the solid pin standing groove 442 of nail
Connect, conflict in free extended configuration and follow closely the end face of the other end of pin standing groove 442 admittedly in free end；And connect on free end and nail
Gu the angled slide block 447 that the shape of pin 45 is adapted.Ensure that the solid pin of nail integrally ejects movement.
The bottom land going out pin end 444 and the end face following closely solid 44 of the solid pin standing groove 442 of nail open up corresponding pin hole
445；Thimble 433 is connected on the end face of the corresponding said inner tube 431 of the pin hole 445 with standing groove；With thimble 433 and pin hole
445 point-blank modes, solid for nail 44 end being movably connected in described outer tube 432 such as adopts thread connecting mode
Or the mode snapping connection.In order to the solid pin 45 of anti-non-magnetic shim unintentionally falls out outside the solid bar 4 of guide pin, therefore, connect in pin hole 445
Open up the rubber packing 446 of otch, effectively anti-non-magnetic shim is consolidated pin 45 and dropped out, and can guarantee that nail consolidates pin 4 under the promotion of external force by pin
Hole 445 extrudes.The shape of otch can be yi word pattern or cross etc..
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be defined by scope of the claims.
Claims (10)
1. a kind of annulus of mitral valve contracting intervention device it is characterised in that：Including conduit, ring contracting tubular wire, initial locating rod, guide pin
Gu bar and ring contracting forming unit, the lateral wall of described ring contracting tubular wire has nail thorn；Described ring contracting tubular wire is located in described
In conduit, described initial locating rod is located in described conduit, the end of the ring contracting tubular wire positioned at distal end of catheter port with
The positioning end of initial locating rod is flexibly connected；The solid bar of described guide pin slides and is located in the middle cavity of described ring contracting tubular wire；
Control described initial locating rod that the end of ring contracting tubular wire is fixed on the side intersection of mitral front lobe and back lobe,
Described conduit is controlled to exit, correspondingly, described ring contracting tubular wire exposes；The ring contracting tubular wire that the solid bar control of described guide pin is exposed
Annulus along back lobe are enclosed and are set, and the nail caltrop of ring contracting tubular wire is entered on the ring wall of annulus, and described ring contracting tubular wire is in bicuspid valve
The opposite side intersection of front lobe and back lobe stop and fix；Described ring contracting forming unit will enclose the ring contracting being located in back lobe annulus
The annulus of annulus and front lobe that tubular wire carries out being contracted to back lobe can close.
2. a kind of annulus of mitral valve contracting intervention device according to claim 1 it is characterised in that：Described ring contracting forming unit bag
Include ring contracting silk, locating pin and terminate locating rod, described ring contracting silk is located in the middle cavity of described ring contracting tubular wire, one end and institute
The end stating the initial locating rod of connection of ring contracting tubular wire is fixedly connected, and the other end connects described locating pin；Described locating pin with
The described end terminating locating rod connects；Described termination locating rod controls tensioning ring contracting silk, ring contracting tubular wire is shunk after putting in place,
Terminate locating rod and locating pin is hammered in lobe wall, that is, complete to shrink shaping.
3. a kind of annulus of mitral valve contracting intervention device according to claim 2 it is characterised in that：Described ring contracting forming unit is also
Remember excitation structure including low temperature, described ring contracting tubular wire is prepared using memorial alloy；Described low temperature remembers excitation structure
Including cryogenic gas storage capsule, described cryogenic gas storage capsule fixed placement initiates locating rod in the connection of described ring contracting tubular wire
End in；After this cryogenic gas storage capsule is rupturable, release cryogenic gas is to the middle cavity of ring contracting tubular wire.
4. a kind of annulus of mitral valve contracting intervention device according to claim 3 it is characterised in that：Also include exiting sleeve pipe, institute
State and exit the end of sleeve pipe there is the structural member in mating connection with the lateral wall of the positioning end of described initial locating rod；When ring contracting
After shaping, the described sleeve pipe that exits is set in outside described initial locating rod, and the positioning by its end and described initial locating rod
End connects, and applies external force, disconnects the connection of initial locating rod and the end of ring contracting tubular wire, and initial locating rod is with to exit sleeve pipe common
Exit with by conduit.
5. a kind of annulus of mitral valve contracting intervention device according to claim 4 it is characterised in that：Described exit sleeve pipe with rise
It is also connected with storage capsule puncturing structure part on the end face of end that the positioning end of beginning locating rod connects；When the end exiting sleeve pipe and institute
State initial locating rod positioning end connect when, this storage capsule puncturing structure part can puncture entrance cryogenic gas storage intracapsular, will
Cryogenic gas storage capsule damaged release cryogenic gas is to the middle cavity of ring contracting tubular wire.
6. a kind of annulus of mitral valve contracting intervention device according to claim 5 it is characterised in that：The determining of described initial locating rod
Position end is adopted with the end of described ring contracting tubular wire threadeds；The positioning end of described initial locating rod and the described sleeve pipe that exits
End be connected by the threaded of contrary hand of spiral.
7. a kind of annulus of mitral valve contracting intervention device according to any one of claim 1 to 6 it is characterised in that：Described lead
Include control bar and nail fixed end to the solid bar of nail, described nail fixed end includes spring part and elastic solid pad；One end of described spring part
Connect described elastic solid pad, the other end connects described control bar；
Or, the solid bar of described guide pin includes control bar and the solid head of nail, and described control bar adopts the inner and outer tubes relatively slided,
And between inner tube and outer tube, damping structure is set, so that both just can be relatively slided under external force；Admittedly head has appearance to described nail
Receive chamber, the solid pin standing groove of setting nail and ejecting mechanism in this accommodating chamber, the solid pin standing groove of described nail is fixedly installed on described appearance
Receive in chamber；Described ejecting mechanism is arranged on described nail and consolidates in pin standing groove, and the end face of fixing end and the solid pin standing groove of nail is fixed
Connect, free end conflict when the limit ejects state the solid pin standing groove of nail the other end end face, the solid pin standing groove of this nail another
One end is pin end；Corresponding pin hole is opened up in going out of the solid pin standing groove of nail on the bottom land at pin end and the end face of the solid head of nail；?
Thimble is connected on the end face of the said inner tube corresponding with the pin hole of standing groove；With thimble and pin hole mode point-blank,
Solid for nail head is movably connected in the end of described outer tube.
8. a kind of annulus of mitral valve contracting intervention device according to claim 7 it is characterised in that：Connect in described pin hole and open
If the rubber packing of otch.
9. a kind of annulus of mitral valve contracting intervention device according to claim 7 it is characterised in that：Described ejecting mechanism adopts bullet
Spring ejecting mechanism, the fixing end of spring is fixedly connected with the end face of the solid pin standing groove of nail, and free end is in free extended configuration
The end face of the other end of the solid pin standing groove of nail of conflicting；And the angled slide block being adapted with the shape of the solid pin of nail is connected on free end.Protect
The solid pin of card nail integrally ejects movement.
10. a kind of annulus of mitral valve contracting intervention device according to any one of claim 1 to 6 it is characterised in that：Described nail
Thorn is divided into multigroup, interval setting between adjacent every group, and the tip of nail thorn has multigroup barb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610921957.9A CN106388880B (en) | 2016-10-21 | 2016-10-21 | A kind of annulus of mitral valve contracting intervention device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610921957.9A CN106388880B (en) | 2016-10-21 | 2016-10-21 | A kind of annulus of mitral valve contracting intervention device |
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| Publication Number | Publication Date |
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| CN106388880A true CN106388880A (en) | 2017-02-15 |
| CN106388880B CN106388880B (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610921957.9A Active CN106388880B (en) | 2016-10-21 | 2016-10-21 | A kind of annulus of mitral valve contracting intervention device |
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| CN104000625A (en) * | 2013-02-26 | 2014-08-27 | 米特拉利根公司 | Devices and methods for percutaneous tricuspid valve repair |
| CN105997304A (en) * | 2016-04-29 | 2016-10-12 | 肖书娜 | Heart valve ring constriction device |
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| CN106388880B (en) | 2019-06-14 |
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