CN201414801Y - Device for measuring stretched diameter of ventricular septal defect - Google Patents
Device for measuring stretched diameter of ventricular septal defect Download PDFInfo
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- CN201414801Y CN201414801Y CN2009200911926U CN200920091192U CN201414801Y CN 201414801 Y CN201414801 Y CN 201414801Y CN 2009200911926 U CN2009200911926 U CN 2009200911926U CN 200920091192 U CN200920091192 U CN 200920091192U CN 201414801 Y CN201414801 Y CN 201414801Y
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Abstract
The utility model discloses a device for measuring the stretched diameter of ventricular septal defect, which adopts the technical scheme that a main body of the device adopts an elastic net, the elastic net has favorable shape memory function, turns to a strip shape due to traction of an external force and restores to the original preset shape when the external force is removed, and the elastic net is formed after shaping and heat-treating woven Ni-Ti alloy wire with a diameter of 0.2 to 0.4mm; a high-elasticity polyester diaphragm seal layer is sewn outside the elastic net through a medicalsuture line; the device is shaped like a rugby ball after full expansion, and the diameters of the short shaft can be divided into the specifications of 5-10mm, 10-20mm and 20-30mm; a sealing head forcollecting and fixing the alloy wire is arranged in the center at the front end of the device; and a joint, capable of being connected with a convey wire rope through a connection hole at the axle center of the joint and used for collecting and fixing the alloy wire, is also arranged in the center at the rear end of the sealing head.
Description
(1) technical field
This utility model relates to technical field of medical instruments, and the first ventricle of using when being specifically related to a kind of interventional therapy congenital heart disease ventricular septal defect of subsidiary apparatus lacks and stretches diameter measuring device.
(2) background technology
The congenital heart disease ventricular septal defect is common congenital heart disease, and the characteristics of its pathological changes of ventricular septal heart 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 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, more just need repair the heart ventricular septal defect 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 ventricular septal heart defect since the eighties in last century, it is to have the stopper of a circular waist of former and later two card therebetween to be installed on the heart septal defect position with one, with damaged shutoff, reach the purpose of clinical cure.General ventricular septal heart defect place is an irregular hole of periphery, and the waist of stopper is the garden of a rule, the waist of stopper will be stuck in the place, hole the hole is blocked, and so just need strut the hole becomes a garden, and the diameter in this garden is exactly that ventricular septal heart defect stretches the garden diameter.
The installation room septal defect blocking device is under the supervision of X-ray, radiography and color ultrasound at present, and the stretching, extension garden diameter through range estimation estimation heart septal defect place is determined the size and the model of stopper, and then stopper is installed.But in operation, usually, range estimation in advance stretches the inaccurate of garden diameter estimation because estimating ventricular septal heart defect, cause selection stopper size and model improper, make operative failure, at this moment just need all pull out outside the human body stopper of having loaded onto, other changes the stopper of other size and model, and this has brought unnecessary trouble to operation.
In case yet the heart that uses at present is all to open the back to find the improper very difficulty of just thinking to regain again every the ubiquitous shortcoming of stopper, as this accident takes place have only and patient is delivered to the cardiac surgery operation chamber 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 defect stretches the garden diameter, suitable stopper is very important to select side.
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
This utility model has the deficiency of determining stretching, extension garden, ventricular septal heart defect place diameter with the range estimation estimation algorithm now in order to overcome, and the first ventricle that provides a kind of accurate measurement ventricular septal heart defect to stretch the garden diameter lacks the stretching, extension diameter measuring device.
For achieving the above object, the technical solution adopted in the utility model is: the main part that first ventricle lack is stretched diameter measuring device is made one to be had good shape memory function and is 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.Elder generation's ventricle lacks and is American football shape after the stretching, extension diameter measuring device all extends, can be divided into several specifications such as 5～10 millimeters, 10～20 millimeters, 20～30 millimeters by its minor axis diameter, measuring device front end center has one to draw the alloy silk in fixed end socket, the center, rear end of stopper has one to draw the alloy silk in fixed joint, and joint can link to each other with carrying wirerope by the connecting hole of its axis part.
During use at X-ray, under the cooperation of angiography and color ultrasound, range estimation earlier estimates to use the measuring device of which kind of specification, again the first ventricle in the delivery sheath being lacked the stretching, extension diameter measuring device 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 measuring device slowly ascendingly, adjust the position of measuring device, on the measured device of the damaged overwhelming majority is stifled, at this moment can directly record the size of measuring device in defect on the supervision screen, this numerical value is exactly that ventricular septal heart defect stretches the garden diameter.At last measuring device is retracted in the delivery sheath, pull out external more in the lump.Because measuring device is an ellipsoid, the appearance slyness is so open and regain all with easy.
The invention has the beneficial effects as follows: it is roughly the same with the elastic modelling quantity of stopper that this first ventricle lack to stretch the elastic modelling quantity of diameter measuring device, simulates the stretching, extension circular diameter of stopper when opening so can dope one.When accurately recording diameter of heart septal defect expansion circle, also can observe irregular heart septal defect by the situation after holding round, help doctor to determine to select the stopper of which kind of model of side.Improved the success rate of operation so greatly.
(4) description of drawings
Accompanying drawing 1 is the surface structure sketch map of this measuring device when opening.
Accompanying drawing 2 is to be connected with the measuring device of carrying wirerope to push the interior sketch map of delivery sheath.
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, the scarce main part that stretches diameter measuring device of first ventricle is made one good shape memory function, is subjected to external force traction and is strip, recovers the elastic network(s) (1) of original preset profile after external force is removed immediately; Elastic network(s) (1) is with the nitinol alloy wire braiding after molding and heat treatment form, and extends to be American football shape, with suture high resiliency polyester diaphragm seal (5) is sewn onto outside the elastic network(s) (1); Measuring device front end center has one to draw the alloy silk in fixed end socket (2), and the center, rear end has one to draw the alloy silk in fixed joint (3); In accompanying drawing 2, can put into delivery sheath (6) after measuring device traction is shrunk to strip, the connecting hole (4) by its joint (3) axis part links to each other with conveying wirerope (7).
Claims (1)
1. a first ventricle lacks the stretching, extension diameter measuring device, it is characterized in that: the main part of this measuring device is one to be had good shape memory function and is subjected to external force traction and can be strip, after removing, external force recovers the elastic network(s) of original preset profile immediately, elastic network(s) be with diameter be 0.2～0.4 millimeter nitinol alloy wire braiding after molding and heat treatment form, one deck high resiliency polyester diaphragm seal is to make outside elastic network(s) with suture, elder generation's ventricle lacks and is American football shape after the stretching, extension diameter measuring device all extends, measuring device front end center has one to draw the alloy silk in fixed end socket, the center, rear end of stopper has one to draw the alloy silk in fixed joint, and joint can link to each other with carrying wirerope by the connecting hole of its axis part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200911926U CN201414801Y (en) | 2009-06-30 | 2009-06-30 | Device for measuring stretched diameter of ventricular septal defect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200911926U CN201414801Y (en) | 2009-06-30 | 2009-06-30 | Device for measuring stretched diameter of ventricular septal defect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201414801Y true CN201414801Y (en) | 2010-03-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200911926U Expired - Fee Related CN201414801Y (en) | 2009-06-30 | 2009-06-30 | Device for measuring stretched diameter of ventricular septal defect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201414801Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109984748A (en) * | 2017-12-29 | 2019-07-09 | 先健科技(深圳)有限公司 | Lumen diameter measuring device |
-
2009
- 2009-06-30 CN CN2009200911926U patent/CN201414801Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109984748A (en) * | 2017-12-29 | 2019-07-09 | 先健科技(深圳)有限公司 | Lumen diameter measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20100630 |