CN203436349U - Occluder conveying sheathing canal with flexibility - Google Patents
Occluder conveying sheathing canal with flexibility Download PDFInfo
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- CN203436349U CN203436349U CN201320589053.2U CN201320589053U CN203436349U CN 203436349 U CN203436349 U CN 203436349U CN 201320589053 U CN201320589053 U CN 201320589053U CN 203436349 U CN203436349 U CN 203436349U
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- inner core
- sheathing canal
- conveying
- canal
- flexibility
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Abstract
The utility model relates to an occluder conveying sheathing canal with flexibility, which belongs to an occluder conveying sheathing canal. The occluder conveying sheathing canal comprises a luer taper, an outer sheathing canal and an inner core, wherein the luer taper is connected with one end of the outer sheathing canal, the inner core passes through the outer sheathing canal to be connected with the luer taper in a screwing manner, and the other end of the outer sheathing canal has an angle of 45 degrees or 180 degrees; the inner core is provided with a through hole, and the diameter of a lead-in hole in the configuration part of a sharp end of the inner core is smaller than that of a hole in a pouring body of the inner core. The occluder conveying sheathing canal has the advantages that the wall thickness is changed by changing the inner diameter of the inner core, so that the supporting strength and the flexibility can be improved; the rigid strength of a conveying guide pipe is reduced, and the flexibility is improved, so that the risk of injuring the vascular wall and endocardium by the conveying sheathing canal can be reduced, and the pain of a patient can be alleviated; the success rate of angular molding in the production process can be increased, the rejection rate can be reduced, easiness in molding can be realized, and the working efficiency can be improved; since the diameter of the inner cavity is increased, materials of a single sheathing canal are obviously saved, and the cost can be reduced.
Description
Technical field
This utility model relates to a kind of stopper delivery sheath, and particularly a kind of have a flexible stopper delivery sheath.
Background technology
Congenital heart disease patent ductus arteriosus (PDA), atrial septal defect (ASD), ventricular septal defect (VSD) are a kind of commonly encountered diseases, prevalence is high at present, and amount for surgical is larger, if select surgical patient painful large, risk is high, and interventional therapy is good selection.Stopper delivery sheath is the delivery track of interventional therapy congenital heart disease, only have and set up good track and could realize effective shutoff, so effective intervention of stopper delivery sheath to reduce be one of key factor of such successful surgery to the damage risk of the organs such as blood vessel.The stopper delivery sheath inner core internal diameter of traditional all size is identical, and the larger wall thickness of specification is thicker, and support strength is larger, there is being in process of production difficult to angle sizing, during use, rigidity is stronger, and compliance is poor, and easily causes the risk of blood vessel and cardiac intima damage.
Stopper delivery sheath adopts polytetrafluoroethylmaterial material, because of its coefficient of friction less, during stopper portion's conveying within it, frictional force is less, easily slide, the far-end of inner core is tip configurations, when setting up delivery track, inner core is penetrated in long sheath pipe, guiding wire is through in inner core centre bore, along seal wire, inner core and long sheath pipe are pushed to defect in the lump, inner core central hole size is 1.0mm～1.1mm at present, aperture is less, the wall thickness of inner core is larger, increasing along with delivery sheath specification, inner core wall thickness also strengthens gradually, bending strength-enhanced, in process of production, " angle sizing " operation easily causes waste product, when clinical use, pliability is poor, rigidity is stronger, poor by pathological changes ability, cause the risk of blood vessel and cardiac intima damage to strengthen.
Have following problems: its corresponding inner core internal diameter of the stopper delivery sheath of different size is all identical, along with the change of sheath pipe specification is large, the wall thickness of inner core increases, and intensity is strengthened, and compliance during intervention is poor.
Utility model content
The purpose of this utility model is that a kind of flexible stopper delivery sheath that has will be provided, its the corresponding inner core internal diameter of stopper delivery sheath that solves existing different size is all identical, and along with the change of sheath pipe specification is large, the wall thickness of inner core increases, intensity is strengthened, the poor problem of compliance during intervention.
The purpose of this utility model is achieved in that stopper delivery sheath comprises: female Luer, epitheca pipe and inner core, female Luer is connected with one end of epitheca pipe, inner core is connected with female Luer spiral through epitheca pipe, the other end of epitheca pipe has an angle, and described angle is 45 degree or 180 degree; Described inner core has through hole, and the entrance hole diameter at inner core tip configurations place is less than the bore dia at inner core injection body place.
Beneficial effect: owing to having adopted such scheme, stopper delivery sheath is comprised of epitheca pipe and inner core, and inner core connects through epitheca pipe female Luer spiral, and the position being used for the treatment of of delivery sheath is different, sheath pipe far-end angle is also different, has two kinds of 45 degree and 180 degree; The sheath pipe of different size, the inner core internal diameter size respective change that it is supporting, the sheath pipe that diameter is larger, the internal diameter of its inner core is larger, inner core sectional area ratio reduced originally, and its support force will decline, bending strength decreased, comparatively easy at angle forming, its pliability also significantly improves, and has reduced the risk of blood vessel and cardiac intima damage, simultaneously when clinical practice, the material that single products is used also reduces greatly, cost-saving.In production process, the delivery sheath of different size diameter, its matching used core arrangement is also not quite similar, and external diameter is larger, and internal diameter is larger, and the entrance hole at its tip configurations place is basic identical.The pliability that changes conduit by changing the size of inner core sectional area, along with the increase of sheath pipe diameter, has guaranteed the normally unimpeded of seal wire, efficiently solves the compliance of delivery sheath.Reached the purpose of this utility model.
Advantage: 1, utilize the change of inner core internal diameter, its wall thickness is changed, thereby change support strength and strengthen compliance.2, adopt after this scheme, the rigidity strength decreased of delivery conduit, compliance increases, and can reduce, due to the risk of delivery sheath to blood vessel wall and cardiac intima damage, to reduce patient's misery.3, adopt this scheme can improve the success rate of angle forming in production process, reduce percent defective, easily molding, increases work efficiency.4, because intracavity diameter becomes large, single vessel segment material saving is obvious, reduces costs.
Accompanying drawing explanation
Fig. 1 is utility model structure chart.
Fig. 2 is this utility model core arrangement figure.
In figure, 1, inner core; 2, the 45 sheath pipes of being outside one's consideration; 3, the 180 sheath pipes of being outside one's consideration; 4, epitheca pipe; 5, female Luer.
The specific embodiment
Embodiment 1: stopper delivery sheath comprises: female Luer 5, epitheca pipe 4 and inner core 1, female Luer 5 is connected with one end of epitheca pipe 4, inner core is connected with female Luer 5 spirals through epitheca pipe, and the other end of epitheca pipe has an angle, and described angle is 45 degree 2 or 180 degree 3; Described inner core has through hole, and the entrance hole diameter at inner core tip configurations place is less than the bore dia at inner core injection body place.
Stopper delivery sheath is the special equipment of carrying the stopper of interventional therapy congenital heart disease, is the delivery track of interventional therapy congenital heart disease.Effective foundation of delivery track is one of key factor realizing interventional therapy in congenital heart diseases, because congenital heart disease belongs to structural heart disease, because of its defect difference, the intervention position of Stopper delivery catheter is also different, simultaneously, the distal tip angle of Stopper delivery catheter is not identical yet, (ASD) is up compared with heart for atrial septal defect, the head angle of delivery sheath approximately 45 degree can meet the demands, and arteries and veins patent ductus (PDA) and ventricular septal defect (VSD) are descending compared with heart, the head angle of delivery sheath approximately 180 degree just can meet the demands.The pliability of Stopper delivery catheter risk to blood vessel injury in intervention procedure is most important, if poor in flexibility, hardness is excessive, twisting resistance is poor, be not easy to arrive diseased region, simultaneously easy injured blood vessel and cardiac intima etc., therefore, good stopper delivery sheath is to realize the damaged precondition of successful shutoff, also can reduce the risk of complication of interventional therapy simultaneously.
Claims (1)
1. one kind has flexible stopper delivery sheath, it is characterized in that: stopper delivery sheath comprises: female Luer, epitheca pipe and inner core, female Luer is connected with one end of epitheca pipe, inner core is connected with female Luer spiral through epitheca pipe, the other end of epitheca pipe has an angle, and described angle is 45 degree or 180 degree; Described inner core has through hole, and the entrance hole diameter at inner core tip configurations place is less than the bore dia at inner core injection body place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589053.2U CN203436349U (en) | 2013-09-13 | 2013-09-13 | Occluder conveying sheathing canal with flexibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589053.2U CN203436349U (en) | 2013-09-13 | 2013-09-13 | Occluder conveying sheathing canal with flexibility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203436349U true CN203436349U (en) | 2014-02-19 |
Family
ID=50087427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320589053.2U Expired - Lifetime CN203436349U (en) | 2013-09-13 | 2013-09-13 | Occluder conveying sheathing canal with flexibility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203436349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106923870A (en) * | 2015-12-31 | 2017-07-07 | 中国医学科学院阜外医院 | A kind of induction system and its application method for research of transcatheter closure of ventricular septal defect |
-
2013
- 2013-09-13 CN CN201320589053.2U patent/CN203436349U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106923870A (en) * | 2015-12-31 | 2017-07-07 | 中国医学科学院阜外医院 | A kind of induction system and its application method for research of transcatheter closure of ventricular septal defect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Wenxiu Document name: Notice of Termination of Patent Rights |
|
| DD01 | Delivery of document by public notice |