CN2530595Y - Closing stopper for patent arterical duct - Google Patents

Abstract

The utility model discloses a closing stopper for patent arterial duct. An outer surface of a cylindrical tube is provided with a plurality of lines of cutting seams running through the tube wall. The cutting seams of each line are discontinuous and divided into a plurality of sections; the cutting seam of each section between adjacent lines is arrayed randomly; the diameter is inflated to form a pipe net structure, and the cylinder and the disk frame are combined into a support net of the stopper. A blocking fluid arranged in the single disk frame and the cavity of the cylindrical tube is in an integral blocking fluid. The utility model can reduce the metal content of the stopper and the metal content in the human body after being planted in human body, and can reduce the smooth degree of the surface for stopping aorta, enhances stopping effect, reduces residual diffluence, and realizes batch production.

Description

The patent ductus arteriosus closing stopper

Technical field

This utility model relates to a kind of medical apparatus and instruments, is specifically related to a kind of shutoff device of medical human heart arter patent ductus.

Background technology

During abnormal passage diseases such as treatment patent ductus arteriosus, traditional Therapeutic Method is to adopt operative treatment.In recent years, adopt the patent ductus arteriosus closing stopper to carry out the non-breast interventional therapy of opening and obtained clinical practice, and become a kind of Therapeutic Method of routine gradually.Existing patent ductus arteriosus is stifled closes device and has characteristics simple to operate, safe and effective, that can reclaim again and discharge, improved value for clinical application, formed but its cylinder and plate rail are metal wire knitted, umbrella portion is bigger, body is longer, can influence descending aorta and Pulmonic blood flow; The closing stopper that forms with metal wire knitted finally will be 72 one metal wire bundles together, put metal tube after weldering live, the tenor of closing stopper and implant into body descendant in-vivo metal amount are increased; And which floor polythene strip its closing stopper bluff body be partly, makes stifledly to close effect and still have certain deficiency, still has shortcomings such as residual shunt and mechanicalness haemolysis.

The utility model content

Higher in order to overcome the stifled device tenor of existing patent ductus arteriosus, deficiencies such as adverse effect to human body, this utility model provides a kind of patent ductus arteriosus closing stopper, and this patent ductus arteriosus closing stopper can reduce the tenor and the intravital amount of metal of implant into body descendant of closing stopper; And can increase the stifled smoothness that closes the aorta face; Strengthen the stifled effect of closing, reduce residual shunt; Also can realize producing in batches.

The technical scheme that its technical problem that solves this utility model adopts is as follows: a kind of patent ductus arteriosus closing stopper, the monolayer plate rail, cylinder, union joint and the bluff body that comprise metal, cylinder and monolayer plate rail are tubular metal, one end of cylinder pipe links to each other with the monolayer plate rail, the other end and the union joint of cylinder pipe join, in the inner chamber of monolayer plate rail and cylinder pipe, bluff body is housed all, on the outer surface of cylinder pipe, be carved with the joint-cutting of plurality of rows perforation tube wall, each row's joint-cutting is all discontinuous, is broken into plurality of sections; The joint-cutting of each section arrangement straggly between the adjacent row, the expansion back forms the metal webmaster with grid; The bluff body that is contained in monolayer plate rail and the cylinder tube cavity is the monoblock type bluff body.

Owing to adopt technique scheme, on the cylinder tube outer surface of this utility model closing stopper, be carved with the joint-cutting of the perforation tube wall of discontinuous and arrangement straggly, after its diameter swollen, those did not have the metal of joint-cutting partly can be linked to be the wire netting tubular construction with grid.

Compared with prior art, the beneficial effects of the utility model are: (1) this utility model patent ductus arteriosus closing stopper, because metal the end of a thread that forms with metal wire knitted on the existing closing stopper, thereby can reduce tenor and the intravital amount of metal of implant into body descendant on the closing stopper, help health.(2) this utility model closing stopper does not have the metal canula of bunch head, and its end face is smooth, can increase the stifled smoothness that closes the aorta face, is difficult for forming thrombosis.(3) this utility model closing stopper adopts the monoblock type bluff body, compares with existing layering bluff body, and it blocks up and closes better effects if, can strengthen hindering the circulation of blood, reduces residual shunt.(4) existing closing stopper owing to be to be formed by metal wire knitted, wherein contain the manual braiding of part, thereby its workload is big, and this utility model does not need manual operations, can realize producing in batches.

Description of drawings

Fig. 1 is the structural representation of this utility model patent ductus arteriosus closing stopper

Fig. 2 is that end view drawing is looked on the right side of Fig. 1

Fig. 3 is that end view drawing is looked on the left side of Fig. 1

Fig. 4 is the metal webmaster expanded view that the engraving among Fig. 1 forms

The specific embodiment

Below in conjunction with drawings and Examples this utility model is further specified.

The structure of patent ductus arteriosus closing stopper and shape are to design according to the form of patent ductus arteriosus and to the basic demand of closing stopper, and common patent ductus arteriosus is shaped as the infundibulate vestibule, and there is the pressure gradient of 30～90mmHg at the vestibule two ends.The planform of this utility model patent ductus arteriosus closing stopper is designed to netted " gaily decorated basket " shape.Fig. 1, Fig. 2, Figure 3 shows that an embodiment of the present utility model.This patent ductus arteriosus closing stopper comprises monolayer plate rail 1, cylinder 2, union joint 3 and the bluff body 4 of metal.Cylinder 2 and monolayer plate rail 1 are tubular metal, and an end of cylinder 2 links to each other with monolayer plate rail 1, and the other end of cylinder 2 and union joint 3 join.The monoblock type bluff body made from macromolecular material 4 all is housed in the inner chamber of monolayer plate rail and cylinder pipe.See also shown in Figure 4ly, be carved with the joint-cutting that plurality of rows connects tube wall on the outer surface of cylinder pipe, each row's joint-cutting is all discontinuous, is broken into plurality of sections.Each segment length of each row's joint-cutting is identical in the present embodiment, and each intersegmental spacing is identical, and adjacent row's spacing is identical.The joint-cutting of each section ordered arrangement straggly between the adjacent row.Cylinder 2 in this utility model and plate rail 1 formed the supporting network of closing stopper, is telescopic network structure, with the needs of the expansion, compression and the pressure at two ends jump that adapt to shape.3～4 millimeters the cylinder metal tube that will be carved with joint-cutting during use is expanded into 10 millimeters caliber, and do not have the metal of joint-cutting partly to be linked to be uniform network on the tube wall this moment, forms cylinder metal webmaster.

The design of the cylinder grid in this utility model should satisfy under external force that webmaster can be retracted in the sheath pipe of 2～3 millimeters of diameters, satisfies again to release back webmaster diameter from the sheath pipe and can be extended to design shape requirement about 10 times.Carve the shape size of grid and the thickness of twine, depend on the specification size of closing stopper, can reach the radial force of designing requirement to guarantee closing stopper, and can tolerate 400,000 times Stromeyer test.The bluff body of closing stopper partly has good biocompatibility, presses multiple recoverability good, and good anti-leakage is arranged.

The operating process of this utility model patent ductus arteriosus closing stopper is as follows: the induction system of patent ductus arteriosus closing stopper is by carrying long sheath, delivery conduit, the short sheath of guiding to form.The external screw thread of delivery conduit one end links to each other with the female thread of the adapter of patent ductus arteriosus closing stopper, the other end of delivery conduit is contained in the short sheath of guiding, by guiding short sheath closing stopper is sent into the long sheath of conveying, carry long sheath closing stopper to be sent into heart by vein blood vessel, guide to the ductus arteriosus defect, and block with closing stopper.Again delivery conduit is twisted in the other direction, the screw thread of conduit and closing stopper is unclamped and break away from,, finish treatment again with delivery conduit and carry long sheath to withdraw from human body.This utility model closing stopper is safe and effective, easy and simple to handle, easily reclaims.

Claims (2)

1, a kind of patent ductus arteriosus closing stopper, the monolayer plate rail, cylinder, union joint and the bluff body that comprise metal, cylinder and monolayer plate rail are tubular metal, one end of cylinder pipe links to each other with the monolayer plate rail, the other end and the union joint of cylinder pipe join, and in the inner chamber of monolayer plate rail and cylinder pipe bluff body are housed all, it is characterized in that: be carved with the joint-cutting that plurality of rows connects tube wall on the outer surface of cylinder pipe, each row's joint-cutting is all discontinuous, is broken into plurality of sections; The joint-cutting of each section arrangement straggly between the adjacent row, the expansion back forms the metal webmaster with grid; The bluff body that is contained in monolayer plate rail and the cylinder tube cavity is the monoblock type bluff body.

2, patent ductus arteriosus closing stopper according to claim 1, it is characterized in that: each segment length of each row's joint-cutting of being carved on the cylinder tube outer surface is identical, each intersegmental spacing is identical, spacing between adjacent row is identical, the joint-cutting of each section ordered arrangement straggly between the adjacent row, the expansion back forms the metal webmaster with even network.

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