A kind of valve gage and its application methodTechnical field
The invention belongs to shape, mode, size or the surveys of movement of measurement human body or human body parts for diagnostic purposesMeasure engineering device technique field more particularly to a kind of valve gage and its application method.
Background technique
Currently, the prior art commonly used in the trade is such that
None can determine that the standard of leaflet size height when now clinically doing DAVID operation.DAVID operation is to be based onThe normal root reconstruction operations of aorta petal, but in real work, valve is sometimes bigger than normal or does not match that with sinus portion.Sinus pipe boundary mentions more upwards, and the diameter for the local involutory surface being involutory is with regard to a little bit smaller.So this DAIVD operation is had a common boundaryIt mentions more height and depends primarily on leaflet pairing.Under the premise of pairing is improved, above mentioned as far as possible so that leaflet makes full use of, it is not extraLeaflet tissue causes excessive blocking or incompetence, and the leaflet for avoiding some excessive is had to the forming for doing leaflet again.Join leaflet and sinus portion or sinus pipe in conventional leaflet forming to match.At present David operation there are the problem ofIt is: can not rational judgment leaflet size；The height that newborn root sinus pipe has a common boundary can not be accurately positioned；It can not judge that some leaflet needsIt individually to repair/accurately repair.
In conclusion problem of the existing technology is:
1, aortic valve, which is unable to fully utilize, causes remaining aortic regurgitation.
2, it can not judge whether leaflet and sinus portion match, whether this leaflet, which needs, is repaired.
3, the artificial blood vessel selected is too small, is forced the forming of row leaflet, influences curative effect at a specified future date.
Solve the difficulty and meaning of above-mentioned technical problem:
If can not judge the proportionate relationship in leaflet and sinus portion and three sinus portions without valve gage, it is likely to result in closeThe repairing effect in phase or long term is dissatisfied.The artificial blood vessel of optimum diameter can not be selected, the work of native leaflets cannot be given full play toWith.The meaning of this valve gage is the size of determining artificial blood vessel, judges whether leaflet matches, if needs or can repair.Whether above-mentioned two o'clock decision operation succeeds and long-term effect.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of valve gage and its application methods.
The invention is realized in this way a kind of valve gage, the valve gage includes: the first sinus portion, the second sinus portion, third sinusPortion, leaflet measuring appliance；
First sinus portion, the second sinus portion and the inserting of third sinus portion are fixed on inside leaflet measuring appliance.
Another object of the present invention is to provide a kind of application method of valve gage, the application methods of the valve gageThe following steps are included:
Step 1, feeler gauge are inserted into sinus portion, and when suitable size matches sinus portion, leaflet matches with valve gage, show normal；
Step 2 first measures left room aorta connection with whole feeler gauge when measurement and sinus pipe has a common boundary；The suitable plug of selectionRule, then be isolated, take its one third to measure the size in respective sinus portion respectively.
In conclusion advantages of the present invention and good effect are as follows:
The present invention cooperates DAVID operation, can accurately determine whether heart valve leaflet needs to repair, and reduces DAVID operationFailure rate, prevent operation because valve mismatch caused by repeat surgery.
Detailed description of the invention
Fig. 1 is valve gage structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is sinus portion provided in an embodiment of the present invention structural schematic diagram；
In figure: 1, the first sinus portion；2, the second sinus portion；3, third sinus portion；4, leaflet measuring appliance.
Fig. 3 is the application method flow chart of valve gage provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present inventionIt is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used toLimit the present invention.
As shown in Figure 1, valve gage provided in an embodiment of the present invention include: the first sinus portion 1, the second sinus portion 2, third sinus portion 3,Leaflet measuring appliance 4.
First sinus portion 1, the second sinus portion 2 and the inserting of third sinus portion 3 are fixed on inside leaflet measuring appliance 4.
As shown in Fig. 2, the application method of valve gage provided in an embodiment of the present invention the following steps are included:
S201: feeler gauge is inserted into sinus portion, and when suitable size matches sinus portion, leaflet can also match with valve gage, with regard to tableBright is normal；
S202: left room aorta connection first is measured with whole feeler gauge when measurement and sinus pipe has a common boundary.Suitable feeler gauge is selected,It is isolated again, its one third is taken to measure the size in respective sinus portion respectively.
Valve gage provided in an embodiment of the present invention is based on the imitated work of proportional die between normal leaflet and sinus portion structure.When observing a leaflet and whether being matched with the sinus portion of itself, as long as feeler gauge is inserted into sinus portion.When suitable size matching sinus portion, valveLeaf can also match with valve gage, indicate that it is normal.Left room aorta connection first is measured with whole feeler gauge when measurementHave a common boundary with sinus pipe.Suitable feeler gauge is selected, then is isolated, its one third is taken to measure the size in respective sinus portion respectively.In this wayIt may determine that whether each leaflet matches with the sinus portion sinus pipe at place boundary.The homogeneous matched valve function in three valves and sinus portionIt can be exactly normal, if the too long explanation of some leaflet has prolapse of valve cusp, if leaflet insufficient height also illustrates there is leafletProlapsus needs the reparation of row leaflet.If leaflet tension illustrates that leaflet is less than normal.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the inventionMade any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.