For reducing the device of annulus of mitral valve opening area
Technical field
The present invention relates to field of medical technology more particularly to a kind of for reducing the device of annulus of mitral valve opening area.
Background technique
There are four valves in each human heart.Link aorta petal, the connection right ventricle of left ventricle and aorta
With the pulmonary valve of pulmonary artery, the bicuspid valve of connection atrium sinistrum and left ventricle and the tricuspid valve for linking atrium dextrum and right ventricle.It
Play one-way cock, make blood that can only flow to another direction from a direction and cannot flow backwards.
Normal mitral valve closure function depend on leaflet, annulus, chordae tendineae, papillary muscle, this 5 parts of left ventricle it is complete
Structure and normal function.The exception of any portion recurring structure and function in this 5 parts can cause mitral valve closure not
(i.e. the larger phenomenon of mitral annulus opening area) entirely.When mitral valve insufficiency, in systolic period, a part of blood of left ventricle
Liquid is backflowed by the mitral orifice of incompetence into atrium sinistrum, in addition the blood of pulmonary vein input, atrium sinistrum blood volume calibration
Often increase, pressure rise.Long it, patient will appear the symptom of atrium sinistrum compensatory hypertrophy.In diastole, a large amount of blood gushes
Enter left ventricle, makes left ventricle that compensatory hypertrophy occur due to reinforcement because shrinking.Later, compensatory mistake can occur for left ventricle and atrium sinistrum
It adjusts (left heart failure), to pulmonary venous pleonaemia, pulmonary hypertension, right ventricle and atrium dextrum compensatory hypertrophy, right heart failure successively occur
And the symptoms such as systemic circulation extravasated blood.It is tired that slight reflux caused by mitral valve insufficiency can make patient slight labour's property breathing occur
Difficult symptom.Severe reflux will appear acute left ventricular failure or even cardiogenic shock quickly.
Summary of the invention
A kind of for reducing the device of annulus of mitral valve opening area it is an object of the invention to propose, which can be preferable
Ground reduces the opening area of annulus of mitral valve, alleviates the symptom of mitral valve insufficiency, reduces the probability that heart reflux occurs.
It is a kind of for reducing the device of annulus of mitral valve opening area, comprising: anchor log, the anchor log is suitable for and bicuspid valve
Ring is connected;Closeouts, closeouts tool have gap, described two disk bodies point between described two disk bodies there are two disk body
Not Wei Yu atrial septum both sides, to realize that the closeouts are connected with the atrial septum;Connecting rope, the both ends point of the connecting rope
It is not connected in the anchor log with the closeouts;Wherein, by adjusting between the anchor log and the closeouts away from
From to realize the opening area for adjusting the annulus of mitral valve.
Optionally, one end of the closeouts is equipped with connection folder, and one end of the connecting rope is folded on the connection folder.
Optionally, one end of the connecting rope is directly connected with the closeouts, and the other end of the connecting rope is successively worn
It crosses and is located at the first intercommunicating pore of the anchor log, be located in the closeouts and the second intercommunicating pore for passing through described two disk bodies prolongs
It is external to extend to patient.
Optionally, the anchor log includes: placement section, and the placement section is formed as column, and the placement section is suitable for and puts
It sets instrument to be connected, the anchor log is put into patient's body;Anchor portion, the anchor portion are connected on the annulus of mitral valve.
Further, the anchor portion is formed as at least one of screw type, hook type and arrow flute profile.
Optionally, the closeouts further include two connectors, and described two connectors are connected to described two disks
One end away from each other of body, one of them described connector are connected with the connecting rope, another described connector be suitable for
It places instrument to be connected, the closeouts is put into patient's body.
Further, each disk body is woven by more memory alloy metal wires, each disk body it is described
The receipts of more memory alloy metal wires tie up end and are connected respectively with a connector.
Further, it is that even circumferential receipts are tied up or unordered close receipts are tied up that the receipts that the receipts tie up end, which tie up mode,.
Optionally, two disk bodies are formed as the disk of the reduced diameter on direction away from each other.
Optionally, the connecting rope is one of polytetrafluoroethylene (PTFE) rope, polyethylene rope, polypropylene rope and polyamide rope.
Device for reducing annulus of mitral valve opening area size of the invention has the advantages that:
(1) using connecting rope connection anchor log and closeouts, the spacing of anchor log Yu closeouts is relatively easily realized
From adjustment, preferably realize the function of reducing annulus of mitral valve opening area.
(2) anchor log is connected directly between on annulus of mitral valve, is reduced the device to the adverse effect of vein, is improved the device
Safety in utilization.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is the whole knot for the device for reducing mitral annulus opening area that the specific embodiment of the invention provides
Structure schematic diagram.
Fig. 2 be the specific embodiment of the invention provide another be used to reduce the device of mitral annulus opening area
Overall structure diagram.
Fig. 3 is the overall structure diagram for the anchor log that the specific embodiment of the invention provides.
Fig. 4 is the overall structure diagram for another anchor log that the specific embodiment of the invention provides.
Fig. 5 is that the specific embodiment of the invention provides the front view of closeouts.
Fig. 6 is that the specific embodiment of the invention provides the top view of closeouts.
Appended drawing reference:
For reduce annulus of mitral valve opening area device 1,
Anchor log 11, placement section 111, anchor portion 112, the first intercommunicating pore 1111,
Closeouts 12, disk body 121, connector 122, the second intercommunicating pore 1221,
Connecting rope 13.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
In conjunction with attached drawing and pass through specific embodiment to further illustrate the technical scheme of the present invention.
The specific of the device 1 for reducing bicuspid valve opening area of the embodiment of the present invention is described below with reference to Fig. 1-Fig. 6
Structure.
As Figure 1-Figure 2, the device 1 according to an embodiment of the present invention for reducing annulus of mitral valve opening area includes anchor
Determine part 11, closeouts 12 and connecting rope 13, anchor log 11 is suitable for being connected with annulus of mitral valve, and closeouts 12 have there are two disk body 121,
There is gap, two disk bodies 121 are located at the both sides of atrial septum, to realize closeouts 12 and room between two disk bodies 121
Every being connected, the both ends of connecting rope 13 are connected respectively at anchor log 11 with closeouts 12, by adjusting anchor log 11 and closeouts 12
The distance between, to realize the opening area of adjustment annulus of mitral valve.
It is understood that in actual use, anchor log 11, connecting rope 13 and closeouts 12 are passed through related medical
Instrument is sent into patient's body, and since anchor log 11 is connected on annulus of mitral valve, closeouts 12 are connected on atrial septum, according to heart
Structure feature, anchor log 11 is closer at a distance from closeouts 12, and the opening area of annulus of mitral valve is with regard to smaller.Therefore, need to only subtract
The length of connecting rope 13 between small anchor log 11 and closeouts 12, it will be able to reduce between anchor log 11 and closeouts 12 away from
From, so that the opening area for reducing annulus of mitral valve is realized, the purpose of reduction heart reflux.By the length for reducing connecting rope 13
It realizes that the mode for reducing the opening area of annulus of mitral valve is simple and easy, reduces operating difficulty, improve operation safety.With this
Meanwhile anchor log 11 is directly connected on annulus of mitral valve, such connection type both can guarantee anchor log 11 and annulus of mitral valve
Be stably connected with, and reduce anchor log 11 by the adverse effect of vein, improve the security performance of the device.
The device 1 according to an embodiment of the present invention for being used to reduce annulus of mitral valve opening area, due to being connected using connecting rope 13
The structure of anchor log 11 and closeouts 12 is connect, the adjustment of distance between anchor log 11 and closeouts 12 is relatively easily realized,
Preferably realize the function of reducing annulus of mitral valve opening area.At the same time, anchor log 11 is connected directly between annulus of mitral valve
On, the device is reduced to the adverse effect of vein, improves the safety in utilization of the device.
It needs exist for remarking additionally, it includes two kinds of sides that the spacing of previously described anchor log 11 and closeouts 12 is adjustable
Formula, one is: the length of connecting rope 13 needed for being adjusted before surgery according to the cardiac size of patient will be used to reduce later two points
The device 1 of annulus opening area is placed into patient's body, can be directly realized by the function of reducing the opening area of annulus of mitral valve.
In this case, the spacing of anchor log 11 and closeouts 12 it is adjustable refer to it is external adjustable or preoperative adjustable.And it is another in
It is to be sent into patient's body after selecting a longer connecting rope 13 to connect anchor log 11 and closeouts 12, then basis
The length of actual needs adjustment connecting rope 13, thus realize the function of reducing the opening area of annulus of mitral valve, in this case,
The spacing adjustable-length of anchor log 11 and closeouts 12 is adjustable refer to it is adjustable in internal adjustable or art.
Advantageously, connecting rope 13 can be one or multiply.It is understood that according to actual selection connecting rope 13
Number of share of stock can preferably guarantee the intensity of connecting rope 13, avoid the phenomenon that connecting rope 13 is broken in surgical procedure, improve
The safety of operation.
Optionally, one end of closeouts 12 is equipped with connection folder, and one end of connecting rope 13 is folded on connection folder.It is understood that
, one end of closeouts 12 is equipped with the connection folder for clamping connecting rope 13, need to only adjust connection in this way and press from both sides and match with connecting rope 13
The spacing between adjustment closeouts 12 and anchor log 11 can be realized in chalaza, and this method of adjustment is simple and easy, reduces operation
Difficulty, to ensure that operation safety.
Optionally, as shown in Fig. 2, one end of connecting rope 13 is directly connected with closeouts 12, the other end of connecting rope 13 according to
Secondary the first intercommunicating pore 1111 for passing through anchor log 11, the second connection for being located in closeouts 12 and passing through two disk bodies 121
It is external that hole 1221 extends to patient.The one end for the connecting rope 13 being pierced by from the second intercommunicating pore 1221 need to be only pulled in this way
The spacing between closeouts 12 and anchor log 11 is adjusted, this method of adjustment is on the one hand simple and easy, reduces operating difficulty, protects
Operation safety has been demonstrate,proved, on the other hand, when using this method of adjustment, the other end of connecting rope 13 can have been sutured on the skin
(suturing in the tissue similar to the battery of pacemaker), in this way when there is the case where patient's aggravation, can directly pass through drawing
The other end of dynamic connecting rope 13 adjust again closeouts 12 between anchor log 11 at a distance from, so that annulus of mitral valve be made to reduce again,
Without using second operation, the pain of patient is preferably reduced.
Optionally, as Figure 3-Figure 4, anchor log 11 includes placement section 111 and anchor portion 112, and placement section 111 is formed as
Column, placement section 111 are suitable for being connected with placement instrument, anchor log 11 are put into patient's body, anchor portion 112 is connected to two points
In annulus.It is understood that anchor portion 112 is formed as hook in order to guarantee being stably connected with for anchor log 11 and annulus of mitral valve
Shape, and hook-shaped anchor portion 112 is connect with placement instrument directly and is likely to occur the lower phenomenon of connective stability, and design one
It is a be formed as columnar placement section 111 with place instrument be connected, preferably ensure that anchor portion 112 and placement instrument between company
Stability is connect, anchor portion 112 steadily can be put into patient's body to ensure that and place instrument.Need exist for additional description
, placement section 111 can be formed as the various columns such as square column type, cylinder, herein not the shape to placement section 111, size
Specific restriction is made, the shape and size of placement section 111 can make a choice according to actual needs.
Further, as Figure 3-Figure 4, anchor portion 112 is formed as at least one in screw type, hook type and arrow flute profile
Kind.Thus, it is possible to preferably guarantee the connection of anchor portion 112 and annulus of mitral valve, avoids anchor portion 112 and taken off from annulus of mitral valve
The phenomenon that falling.In addition, anchor portion 112 may include multiple crotches or arrow tooth for further promoting annulus of mitral valve and anchor
Determine the connective stability in portion 112.Certainly, in other embodiments of the invention, the concrete shape of anchor portion 112 can also basis
Actual needs makes a choice, however it is not limited to foregoing description.
Optionally, as shown in figure 5, closeouts 12 further include two connectors 122, two connectors 122 are connected to
One end away from each other of two disk bodies 121, one of connector 122 are connected with connecting rope 13, another connector 122 is suitable
It is connected in placement instrument, closeouts 12 is put into patient's body.It can preferably guarantee closeouts 12 and connecting rope as a result,
13 connective stability, and can preferably guarantee closeouts 12 and place the connective stability of instrument, to ensure that placement instrument
Closeouts 12 preferably can be placed into patient's body by device.Additional description is needed exist for, connector 122 can be formed as
The various shapes such as cylinder, square column type, hemispherical do not make restriction, connector 122 to the concrete shape of connector 122 herein
Concrete shape can be selected according to actual needs.
Further, as shown in figure 5, each disk body 121 is woven by more memory alloy metal wires, each disk body
The receipts of 121 more memory alloy metal wires tie up end and are connected respectively at a connector 122.It is understood that in order to guarantee
The connective stability of closeouts 12 and atrial septum, disk body 121 are generally done larger.Disk body is woven into using memory alloy metal wire
121, it, can be to outside the application of disk body 121 when being placed on and being placed on instrument by closeouts 12 due to the property of memorial alloy
Power makes its reduction, and after entering patient's body, the disk body 121 being woven by memory alloy metal wire can resile to complete
The connection of disk body 121 and atrial septum.Surgical wound area is reduced in this way, is reduced the pain of patient, is shortened post-operative recovery
Time.
Further, it is that even circumferential receipts are tied up or unordered close receipts are tied up that the receipts that the receipts of disk body 121 tie up end, which tie up mode,.By
This, can relatively easily realize that the receipts of more memory alloy metal wires tie up the connection at end Yu connector 122, to facilitate envelope
The manufacture of blocking piece 12 improves the manufacturing efficiency of closeouts 12.Certainly, in other embodiments of the invention, disk body 121
Receipts tie up the receipts of section and tie up mode and can arbitrarily select according to actual needs.
Advantageously, memory alloy metal wire number is 28-72 root.
Optionally, as shown in figure 5, two disk bodies 121 are formed as the circle of the reduced diameter on direction away from each other
Disk.As a result, under the premise of ensure that the connective stability of closeouts 12 and atrial septum, the volume of two disk bodies 121 is reduced,
Closeouts 12 are reduced to the adverse effect of patient.Certainly, the shape of two disk bodies 121 can be according to reality according to actual needs
Situation makes a choice, however it is not limited to foregoing description.
Optionally, the connecting rope 13 is one in polytetrafluoroethylene (PTFE) rope, polyethylene rope, polypropylene rope and polyamide rope
Kind.The production cost of connecting rope 13 is reduced in the case where ensure that the intensity of connecting rope 13 as a result,.
Optionally, the anchor log 11 is prepared by one of nickel-titanium alloy material, titanium alloy, stainless steel material etc..
Embodiment 1:
Below with reference to Fig. 1 description one specific embodiment of the present invention for reducing the device 1 of annulus of mitral valve opening area
Structure.
As shown in Figure 1, the device 1 for reducing annulus of mitral valve opening area of the present embodiment includes anchor log 11, blocks
Part 12 and connecting rope 13.Anchor log 11 includes that anchor log 11 includes placement section 111 and anchor portion 112, and placement section 111 is suitable for and puts
It sets instrument to be connected, anchor log 11 is put into patient's body, anchor portion 112 is formed as screw type and is connected on annulus of mitral valve.
The connector 122 of end face of the closeouts 12 including two disk bodies 121 and the one end away from each other for being connected to two disk bodies 121, two
There is gap, two disk bodies 121 are located at the both sides of atrial septum, to realize closeouts 12 and atrial septum between a disk body 121
It is connected, the both ends of connecting rope 13 are connected respectively at placement section 111 with one of connector 122 of closeouts 12.Each disk body
121 are woven by more memory alloy metal wires, the receipts of more memory alloy metal wires of each disk body 121 tie up end respectively at
One connector 122 is connected.
Embodiment 2:
As shown in Fig. 2, the device 1 for reducing annulus of mitral valve opening area of the present embodiment includes anchor log 11, blocks
Part 12 and connecting rope 13.Anchor log 11 includes that anchor log 11 includes placement section 111 and anchor portion 112, and placement section 111 is suitable for and puts
It sets instrument to be connected so that anchor log 11 is put into patient's body, the first intercommunicating pore 1111, anchor portion is formed on the placement section 111
112 are formed as screw type and are connected on annulus of mitral valve.Closeouts 12 include two disk bodies 121 and are connected to two disk bodies 121
One end away from each other end face connector 122, there is gap, two disk bodies 121 are located at room between two disk bodies 121
The both sides at interval, to realize that closeouts 12 are connected with atrial septum, the both ends of connecting rope 13 are respectively at placement section 111 and closeouts 12
One of connector 122 be connected.Each disk body 121 is woven by more memory alloy metal wires, each disk body 121
The receipts of more memory alloy metal wires tie up end and are connected respectively at a connector 122.The receipts of each disk body 121 tie up the receipts side of tiing up at end
Formula is that even circumferential receipts are tied up, and closeouts 12 are equipped with the second intercommunicating pore through two disk bodies 121 and two connectors 122
1221.One end of connecting rope 13 is directly connected with closeouts 12, and the other end of connecting rope 13, which sequentially passes through, is located at anchor log 11
First intercommunicating pore 1111, the extension of the second intercommunicating pore 1221 are sewn in patient skin tissue.
In the description of this specification, reference term " some embodiments ", " other embodiments ", etc. description mean to combine
The embodiment or example particular features, structures, materials, or characteristics described be contained at least one embodiment of the present invention or
In example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.And
And particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples with suitable
Mode combine.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.