CN101791224B - Ball for measuring diameter of heart septal defect expansion circle - Google Patents
Ball for measuring diameter of heart septal defect expansion circle Download PDFInfo
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- CN101791224B CN101791224B CN2009100641512A CN200910064151A CN101791224B CN 101791224 B CN101791224 B CN 101791224B CN 2009100641512 A CN2009100641512 A CN 2009100641512A CN 200910064151 A CN200910064151 A CN 200910064151A CN 101791224 B CN101791224 B CN 101791224B
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- ball
- septal defect
- diameter
- heart septal
- measuring
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Abstract
The invention discloses a ball for measuring the diameter of a heart septal defect expansion circle. The main body part of the ball for measuring the diameter of the heart septal defect expansion circle is made into an elastic net which has a good shape memorizing function and can change into a long strip under the action of an external force and restore the original default shape after the external force is removed. The elastic net is braided by nickel-titanium alloy wires with a diameter of between 0.2 and 0.4 millimeters and then formed by molding and heat treatment. The measuring ball is spherical after expansion; an end socket for holding the alloy wires together and fixing the alloy wires is arranged in the centre of the front end of the measuring ball; a connector for holding the alloy wires together and fixing the alloy wires is arranged in the centre of the rear end of a plugging device and can be connected with a delivery steel cable through a connecting hole at the axis part of the connector. In use, the measuring ball is placed at the heat defect part through built rails by pushing the delivery steel cable and slowly expanded till the defect is basically plugged, thus,the diameter, which is measured on a monitor, of the measuring ball is the diameter of the heart septal defect expansion circle.
Description
(1) technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of subsidiary apparatus heart septal defect for the treatment of congenital heart disease and stretch circular diameter measurement ball.
(2) background technology
Congenital heart disease atrial septal defect and ventricular septal defect all are common congenital heart diseases, and the characteristics of its pathological changes of heart atrial septal defect are that normally closed is failed at the interval between the left atrium, and blood flows between left atrium and right atrium; The characteristics of its pathological changes of ventricular septal defect are that normally closed is failed at the interval between the left and right ventricles, and blood is flowed between left ventricle and right ventricle.Because the pressure of left atrium is higher than right atrium, so the part blood of left atrium flows to right atrium through atrial septal defect punishment.Because the leakage of blood, the burden that causes the right side to feel concerned about system increases, and causes right ventricular hypertrophy, pulmonary hypertension, arrhythmia and heart failure.When causing blood leakage, the heart septal defect more just need repair the septal defect place.Surgical operation is the traditional method of treatment heart septal defect, its shortcoming be need open breast to patient, wound is big, the complication rate height, recovers slow.Wicresoft's interventional therapy progressively becomes the first-selection of treatment heart septal defect since the eighties in last century, it is to have the circular stopper of a waist of former and later two card therebetween to be installed on the heart septal defect position with one, here heart septal defect is an irregular hole of periphery, and the waist of stopper is the circle of a rule, stopper will be stuck in the place, hole the hole is blocked, so just need strut the hole becomes a circle, and this diameter of a circle is exactly that heart septal defect stretches circular diameter.With the installation room septal defect blocking device is example, it is under the supervision of X-ray and color ultrasound, at first the stretching, extension circular diameter at heart septal defect place is estimated in range estimation, determine the size and the model of stopper, and then installation stopper, making originally has damaged spaced walls to be clamped by left and right two cards of stopper, makes damaged closure, reaches the purpose of clinical cure.But in operation, usually, range estimation in advance stretches the inaccurate of circular diameter estimation because estimating the heart septal defect place, cause selection stopper size and model improper, at this moment just need all pull out the stopper of having loaded onto outside the human body, other changes the stopper of other size and model.
At present the heart that uses is in case need just regain very difficulty to the stopper of all having opened again every the ubiquitous shortcoming of stopper, nonrecoverable accident often takes place, have to deliver to the cardiac surgery operation chamber to patient for this reason and carry out open chest surgery, take out stopper and sew and mend heart septal defect again, patient is easy to meet accident in this process.This shows and determine that accurately it is very important that defect stretches circular diameter.
Stretch the inaccurate main cause of circular diameter and is at range estimation estimation heart septal defect place: for patient places the cardiac septum stopper is to carry out under X-ray, color ultrasound is used simultaneously, because heart defect is different, and doctor can only observe in one direction, so can not determine accurately that defect stretches circular diameter.Mostly doctor rule of thumb judges the size and the shape of defect under the situation, thereby selects the stopper of certain model and specification, like this through regular meeting because the collimation error causes selected stopper model and specification not right, that stopper is installed is unsuccessful and cause.
(3) summary of the invention
The present invention estimates the inaccurate deficiency of heart septal defect place stretching, extension circular diameter in order to overcome existing range estimation, and the heart septal defect that provides a kind of accurate measurement heart septal defect to stretch circular diameter stretches circular diameter and measures ball measurement ball.
For achieving the above object, the technical solution used in the present invention is: heart septal defect is stretched circular diameter measure the main part of ball and make one and good shape memory function is arranged and be subjected to external force traction and can be strip, recover the elastic network(s) of original preset profile after external force is removed immediately, elastic network(s) is to be that 0.2～0.4 millimeter nitinol alloy wire weaves after molding and heat treatment form with diameter.Elastic network(s) is with one deck high resiliency polyester diaphragm seal outward, and the polyester diaphragm seal is to make outside elastic network(s) with suture.Measure and be spherical after ball all extends, can be divided into several specifications such as 5～10 millimeters, 10～20 millimeters, 20～30 millimeters by its diameter, measuring ball front end center has one to draw elastic network(s) in fixed end socket, the center, rear end of measuring ball has one to draw elastic network(s) in fixed joint, there is a connecting hole at the coupling axis position, measures ball and can link to each other with carrying wirerope by its connecting hole.
During use at X-ray, under the cooperation of angiography and color ultrasound, range estimation earlier estimates to use the measurement ball of which kind of specification, again the heart septal defect in the delivery sheath being stretched circular diameter measurement ball links to each other with carrying wirerope, deliver to the heart septal defect position along the track of having set up for the installation stopper from femoral vein to the ventricular septal heart defect position always, by promote to carry wirerope to open the measurement ball slowly ascendingly, adjust size and the position of measuring ball, on the measured ball of the damaged overwhelming majority is stifled, at this moment can directly monitor the size that records the measurement ball on the screen, this numerical value is exactly that heart septal defect stretches circular diameter.To measure ball at last and retract in the delivery sheath, pull out external more in the lump.Because measuring ball is spheroid, the appearance slyness is so open and regain all with easy.
Which kind of the invention has the beneficial effects as follows: when accurately recording heart septal defect stretching, extension circular diameter, also can observe and stretch the circle situation of cardiac septum in addition, help doctor to determine to select the stopper of side model.Improved the success rate of operation so greatly.
(4) description of drawings
Accompanying drawing 1 is the surface structure sketch map of the present invention when opening.
Accompanying drawing 2 is to be connected with the measurement ball of carrying wirerope to push the interior sketch map of delivery sheath.
Accompanying drawing 3 is the sketch maps when measuring ball portion and opening.
In the accompanying drawing, 1. elastic network(s), 2. end socket, 3. joint, 4. connecting hole, 5. polyester diaphragm seal, 6. the sheath pipe is 7. carried wirerope.
(5) specific embodiment
In accompanying drawing 1, heart septal defect is stretched circular diameter measure the main part of ball and make one good shape memory function is arranged, be subjected to external force traction and be strip, after removing, external force recovers the elastic network(s) (1) of original preset profile immediately; Elastic network(s) (1) is to weave after molding and heat treatment form with nitinol alloy wire, is spherical after extending, and with suture high resiliency polyester diaphragm seal (5) is sewn onto outside the elastic network(s) (1); Measuring ball front end center has one to draw elastic network(s) in fixed end socket (2), and center, its rear end has one to draw elastic network(s) in fixed joint (3); In accompanying drawing 2, after being shrunk to strip, the ball traction can put into delivery sheath (6) measuring, and the connecting hole (4) by its joint (3) axis part links to each other with conveying wirerope (7).
Claims (4)
1. a heart septal defect stretches circular diameter measurement ball, it is characterized in that: heart septal defect is stretched circular diameter measure the main part of ball and make one and good shape memory function is arranged and be subjected to external force traction and be strip, after removing, external force recovers the elastic network(s) of original preset profile immediately, elastic network(s) is with one deck high resiliency polyester diaphragm seal outward, measure and be spherical after ball extends, measuring ball front end center has one to draw elastic network(s) in fixed end socket, the center, rear end of measuring ball has one to draw elastic network(s) in fixed joint, and the axis part of joint has a connecting hole.
2. heart septal defect according to claim 1 stretches circular diameter and measures ball, it is characterized in that: elastic network(s) is to be that 0.2～0.4 millimeter nitinol alloy wire weaves after molding and heat treatment form with diameter.
3. heart septal defect according to claim 1 stretches circular diameter and measures ball, it is characterized in that: measuring ball is 5～10 millimeters, 10～20 millimeters, 20～30 millimeters by its diameter.
4. heart septal defect according to claim 1 stretches circular diameter and measures ball, and it is characterized in that: the polyester diaphragm seal is to make outside elastic network(s) with suture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100641512A CN101791224B (en) | 2009-02-01 | 2009-02-01 | Ball for measuring diameter of heart septal defect expansion circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100641512A CN101791224B (en) | 2009-02-01 | 2009-02-01 | Ball for measuring diameter of heart septal defect expansion circle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101791224A CN101791224A (en) | 2010-08-04 |
| CN101791224B true CN101791224B (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100641512A Expired - Fee Related CN101791224B (en) | 2009-02-01 | 2009-02-01 | Ball for measuring diameter of heart septal defect expansion circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101791224B (en) |
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2009
- 2009-02-01 CN CN2009100641512A patent/CN101791224B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101791224A (en) | 2010-08-04 |
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Address after: 450052 Henan City, Zhengzhou province No. 27 Central Plains Road, building No. 78, building No. 18, No. 43 Patentee after: Zhao Jing Address before: 100044 Beijing, Xizhimen, South Street, No. 11, No. Patentee before: Zhao Jing |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20120201 |