CN2920184Y - Ventricular septal defect occluder - Google Patents

Ventricular septal defect occluder Download PDF

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Publication number
CN2920184Y
CN2920184Y CNU2006200188971U CN200620018897U CN2920184Y CN 2920184 Y CN2920184 Y CN 2920184Y CN U2006200188971 U CNU2006200188971 U CN U2006200188971U CN 200620018897 U CN200620018897 U CN 200620018897U CN 2920184 Y CN2920184 Y CN 2920184Y
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China
Prior art keywords
stopper
waist
occluder
disc
septal defect
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Expired - Fee Related
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CNU2006200188971U
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Chinese (zh)
Inventor
解启莲
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Individual
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Individual
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Priority to CNU2006200188971U priority Critical patent/CN2920184Y/en
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Publication of CN2920184Y publication Critical patent/CN2920184Y/en
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Abstract

The utility model provides a new type ventricular septal defect occluder which is woven with nickel-titanium golden silk. The utility model is mainly composed of a left ventricle disc of the occluder and a right ventricle disc of the occluder, which are arranged vis-a-vis and the waist of the left ventricle disc of the occluder is connected with the right ventricle disc of the occluder. The utility model is characterized in that double-ventricle discs are dual-eccentricity wings shaped and the waist is obtuse dual-ladder shape that is slanting rightwards. The left and right ventricle discs of the occluder are designed as being breadthwise elliptical and shaped like wings. The maximum diameter of two side wings is about 6-8mm longer than that of the waist of the occluder; the upper-end rim is close to the waist of the occluder and the lower-end rim is about 2mm overstepping the waist of the occluder. Seen from their cross section, the elliptical wings of two discs are presented as arch shapes. The waist of the occluder has a the thickness of 3mm, and the upper end of the waist keeps dual eccentricity. The top surface is slanting rightwards, being similar to obtuse dual-ladder shape. The left disc and the right disc have a gap of 2mm or so. The wing-like dual-eccentricity structure of the utility model can be effectively shy away from the main coronary artery and pulmonary artery petal. Meanwhile, the fixing is tight, which is suitable for the sealing of the ventricular septal defect.

Description

The subpulmonic ventricular septal defect stopper
Technical field
This utility model relates to medical instruments field.
Background technology
Ventricular septal defect is a kind of modal congenital heart disease, account for 20% of congenital heart disease sickness rate, surgical operation was that its unique treatment is selected in the past, but surgical operation is ripe relatively through the development of decades, but still there are certain mortality rate and complication, as residual leakage, pericardial incision syndrome, atrioventricular block and arrhythmia etc., still not a kind of ideal Therapeutic Method therefore.Surgery operating wound is bigger simultaneously, and patient's thoracic operation otch cicatrix will produce serious psychological burden to its physical and mental development.Used two-sided umbrella device since the closed catheter ventricular septal defect from reports such as Lock in 1988, there successively have multiple stopper to be applied to be clinical, the particularly appearance of asymmetric eccentric stopper, substantially solved apart from the interventional therapy of the insufficient ventricular septal defect in aortic valve edge, but for insufficient ventricular septal defect person simultaneously apart from the valve of pulmonary trunk edge, be subpulmonic ventricular septal defect, still do not have suitable stoppers at present, still belong to the interventional therapy contraindication.And subpulmonic ventricular septal defect accounts for 20% of ventricular septal defect, and this type ventricular septal defect interventional therapy can not be broken through, and will seriously hamper the development of congenital heart disease interventional therapy.Subpulmonic ventricular septal defect is not because damaged mouthful of edge all has appropriate edge with respect to aorta and valve of pulmonary trunk, and therefore the both sides valve is necessary to design and develop out suitable more shutoff subpulmonic ventricular septal defect stopper not at same horizontal line.
Summary of the invention
The purpose of this utility model provide a kind of rational in infrastructure, be suitable for shutoff subpulmonic ventricular septal defect stopper.
For this reason, this utility model provides a kind of through conduit shutoff subpulmonic ventricular septal defect stopper.The support that this stopper is formed by the braiding of NiTi spun gold, it mainly comprises in opposite directions thirty years of age the left ventricle disc of stopper and the right ventricle disc of stopper, the stopper waist that connects the right ventricle disc of above-mentioned left ventricle disc and stopper, left ventricle disc one end of described stopper links to each other with fixed connecting part, right ventricle disc one end of described stopper links to each other with fixed connecting part, has the duct of connection to be connected with transport control system on described fixed connecting part; Wherein, the principal character of described stopper is that wing is two eccentric for this stopper, and the left and right ventricles card that is about to stopper is designed to horizontal ellipse, shape such as double-vane, the upper end keeps zero off-centre, and two cards are extended to the bilateral limit, and the lower edge of two cards can be suitably greater than the stopper waist diameter.Stopper waist top end face is oblique upper right, and is similar two stepped.
Advantage of the present utility model and positive effect: the two eccentric structures of wing of the present utility model, can effectively avoid aorta and valve of pulmonary trunk, fixation simultaneously is suitable for the shutoff subpulmonic ventricular septal defect.
Description of drawings
The stopper waist side structural representation that Fig. 1 provides for this utility model.
The stopper left ventricle disc structure sketch map that Fig. 2 provides for this utility model.
The right ventricle disc stopper structural representation that Fig. 3 provides for this utility model.
The stopper cross-sectional structure sketch map that Fig. 4 provides for this utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment this utility model is further described.
As accompanying drawing 1, Fig. 2, Fig. 3, shown in Figure 4, that this utility model embodiment provides is a kind of rational in infrastructure, be suitable for the damaged stopper of a kind of novel interventricular septum film perimembranous of accompanying pseudo theca tumor to form.The support of the damaged stopper of a kind of novel interventricular septum film perimembranous for forming by the nitinol alloy wire braiding, it mainly comprises in opposite directions thirty years of age the left ventricle disc 1 of stopper and the right ventricle disc 2 of stopper, the stopper waist 3 that connects the right ventricle disc 2 of above-mentioned left ventricle disc 1 and stopper, left ventricle disc 1 one ends of described stopper link to each other with fixed connecting part 4, right ventricle disc 2 one ends of described stopper link to each other with fixed connecting part 6, have the duct of connection to be connected with transport control system on described fixed connecting part 6; Wherein, the left ventricle disc 1 of described stopper is made up of oval wings 7 of side direction and feather edge 8, and the right ventricle disc 2 of stopper is made up of oval wings 9 of side direction and feather edge 10.It is characterized in that the oval double-vane of its left and right sides card is seen from cross section, be circular-arc 11 and circular-arc 12 respectively.
The fixed connecting part 6 of right ventricle disc 2 one ends of this stopper is all used the fixing control of medical stainless steel circle with left ventricle disc 1 one ends and fixed connecting part 4, the lateral ends of described stainless steel coil 6 has the duct of connection to be connected with transport control system, the fixedly connected control assembly 6 of above-mentioned right ventricle one end and left ventricle disc 1 one ends fixedly connected all inner hollow of control assembly 4, can link to each other with above-mentioned nitinol alloy wire, should there be solder joint between described screw and the nitinol alloy wire, but adopt the kneading technology to make, its pulling force is better than existing support by being welded at present greatly, and difficult drop-off.This stopper is woven into flat bottom bags shape by certain route by nitinol alloy wire on mould, two ends are used the 316L stainless steel coil and fixed, and put between the special outer mold, after heat treatment form the wing double plate.The horizontal bottom of the oval disk in both sides is parallel to each other, and the control treatment temperature, reaches the super-elasticity and the memory function that need.The support liner of this stopper is gone into 3-10 layer polyester film, uses medical suture and holder part and is stitched together, and it is standby to put into suction paper sterilization bag ethane via epoxyethane sterilization back.
The nitinol alloy wire of this stopper is the support of stopper, and the polyester fiber film serves as a contrast into middle, plays the effect that stops blood flow; The effect of fixedly connected part is that fixedly nitinol alloy wire is connected with providing with transport control system.The profile of described stopper is wing double plate shape, it is cylindrical that the waist 3 of connection two dishes 1 and 2 is class, respectively than the big 6-8mm of waist diameter, upper end-face edge is close to stopper waist 3 to oval disk side to transverse diameter 7 and 9, and lower edge 8 and 10 exceeds the about 2mm of stopper waist 3 diameters.The oval double-vane of its left and right sides card is seen from cross section, is circular-arc slightly.It is two eccentric that waist upper end 5 keeps, and end face is oblique upper right, blunt two stepped of similar circle, and left side dish is about 2mm with the right top drop that coils.
To be connected with transport portion in the side opening of steel wire penetrating stopper during application, an end of tractive steel wire rope discharged stopper after stopper put in place.Stopper has good shape memory function, is subjected to external force traction and is linear, recovers original-shape behind the external force place to go immediately.
In clinical practice, select the size of stopper for use according to the interventricular septal defect diameter of radiography measurement in ultrasonic and the art.Usually select the diameter of stopper than the about 2mm of measured value.Stopper is sent into left ventricle through delivery sheath, at first opens the waist of left ventricle face and stopper in left ventricle, returns and removes the sheath pipe, discharges the disc of right heart face.Under ultrasonic and the guiding of X line, determine the position that stopper is implanted and meet stifled effect.

Claims (6)

1. subpulmonic ventricular septal defect stopper, it is characterized in that, weave the support that forms by the NiTi spun gold, it mainly comprises in opposite directions thirty years of age the left ventricle disc of stopper and the right ventricle disc of stopper, the stopper waist that connects the right ventricle disc of above-mentioned left ventricle disc and stopper, the biventricular card is two eccentric wings, and waist is that oblique upper right circle is blunt two stepped.
2. subpulmonic ventricular septal defect stopper according to claim 1 is characterized in that, stopper left ventricle card is designed to horizontal ellipse, shape such as double-vane, and two flank maximum transverse diameters are than the big approximately 6-8mm of stopper waist diameter; Upper end-face edge next-door neighbour stopper waist, lower edge exceeds the about 2mm of stopper waist diameter.
3. according to claim 1ly it is characterized in that in the mo(u)ld bottom half ventricular septal defect the oval double-vane of its left card is seen from cross section, is circular-arc slightly.
4. subpulmonic ventricular septal defect stopper according to claim 1 is characterized in that, stopper right ventricle card is designed to horizontal ellipse, shape such as double-vane, and two flank maximum transverse diameters are than the big approximately 6-8mm of stopper waist diameter; Upper end-face edge next-door neighbour stopper waist, lower edge exceeds the about 2mm of stopper waist diameter.
5. subpulmonic ventricular septal defect stopper according to claim 1 is characterized in that, the oval double-vane of its right card is seen from cross section, is circular-arc slightly.
6. subpulmonic ventricular septal defect stopper according to claim 1 is characterized in that, described stopper waist thickness is 3mm, it is two eccentric that the waist upper end keeps, end face is oblique upper right, blunt two stepped of similar circle, and left side dish is about 2mm with right dish top drop.
CNU2006200188971U 2006-04-28 2006-04-28 Ventricular septal defect occluder Expired - Fee Related CN2920184Y (en)

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Application Number Priority Date Filing Date Title
CNU2006200188971U CN2920184Y (en) 2006-04-28 2006-04-28 Ventricular septal defect occluder

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Application Number Priority Date Filing Date Title
CNU2006200188971U CN2920184Y (en) 2006-04-28 2006-04-28 Ventricular septal defect occluder

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CN2920184Y true CN2920184Y (en) 2007-07-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102895046A (en) * 2012-09-17 2013-01-30 邢泉生 Plugging device for a subconal or double-artery-valve subarterial ventricular septal defect
CN102895047A (en) * 2012-09-17 2013-01-30 邢泉生 Plugging device for perime membrane ventricular sepetal defect and plugging device assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102895046A (en) * 2012-09-17 2013-01-30 邢泉生 Plugging device for a subconal or double-artery-valve subarterial ventricular septal defect
CN102895047A (en) * 2012-09-17 2013-01-30 邢泉生 Plugging device for perime membrane ventricular sepetal defect and plugging device assembly
CN102895046B (en) * 2012-09-17 2016-04-06 邢泉生 A kind of dry lower or two arterial valve mo(u)ld bottom half ventricular septal defect

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C19 Lapse of patent right due to non-payment of the annual fee
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