CN101966092B - Medical plugging device - Google Patents
Medical plugging device Download PDFInfo
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- CN101966092B CN101966092B CN 201010287504 CN201010287504A CN101966092B CN 101966092 B CN101966092 B CN 101966092B CN 201010287504 CN201010287504 CN 201010287504 CN 201010287504 A CN201010287504 A CN 201010287504A CN 101966092 B CN101966092 B CN 101966092B
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- Prior art keywords
- plugging device
- cock body
- plug
- turn
- medical plugging
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
- A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
- A61B17/12172—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure having a pre-set deployed three-dimensional shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12122—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder within the heart
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00592—Elastic or resilient implements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00641—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closing fistulae, e.g. anorectal fistulae
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Vascular Medicine (AREA)
- Reproductive Health (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Cardiology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a medical plugging device. The device comprises a plug, wherein the plug is woven by elastic wires; the medicinal plugging device also comprises a spring ring which is connected with the plug and used for fixing the plug; one end of the spring ring is fixed with one end of the plug; the spring ring is formed into a curly shape by winding the metal wire; and the spring ring is extended to the side far away from the plug when being tensioned by external force and restored when the external force is removed. The device can be conveyed to a specified position by a conveying sheath catheter with small diameter by percutaneous puncture so as to plug a lesion part; the plug is supported against the lesion part by elasticity; the spring ring is pulled towards one side away from the plug and presses against the heart or wall of the blood vessel by the elasticity of the spring ring; the plug is prevented from moving away from the spring ring; and the plug is fixed at a required position by the elasticity and the interaction of the plug and the spring ring.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, relate in particular to a kind of medical plugging device that is used for the congenital heart disease interventional therapy.
Background technology
Congenital heart disease is meant fetal period heart or trunk abnormal development and the lopsided type disease that causes; Be neonate and Childhood (the particularly child below 4 years old) modal heart disease; Its sickness rate is 8 ‰-12 ‰, and suffering from various congenital heart diseases in the neonate of the annual birth of China has 150,000-200,000 people approximately.
The congenital heart disease traditional treatment is a surgical operation, but surgical operation is bigger to the wound of patient's body, certain postoperative complication is arranged and leave cicatrix, and the body and mind that influences the patient is grown up.Porstmann used sponge plug shutoff ductus arteriosus in 1967.King in 1974 and Rashkind in 1977 have successfully realized the atrial septal defect shutoff art of interventional therapy.1992, Cambier reported that at first applied spring embolus shutoff patent ductus arteriosus achieves success.Amplatzer had invented the heart occluder that super-elastic shape memory alloy material Ni tinol (Nitinol) processes in 1997, and was successfully applied to clinical.The result shows that it has the advantage that safety is good, easy and simple to handle, controllability is strong, complication is few, has therefore obtained promoting widely, and has made interventional therapy become a kind of main congenital heart disease therapeutic modality.
The major product that is applied to the congenital heart disease interventional therapy at present has atrial septal defect (ASD) stopper, patent ductus arteriosus (PDA) stopper, ventricular septal defect (VSD) stopper, patent foramen ovale (PFO) stopper, vascular plug, turn.Wherein atrial septal defect plugging device, patend ductus arteriosus occluder, ventricular septal defect are to use maximum products; Representative products is the Amplatzer stopper; Its structure is the Nitinol net umbrella-shaped structure of double plate, connects through waist between two dishes, is sewed with the choked flow film in the centre of umbrella disk.Patent foramen ovale (PFO) stopper is used very extensive in American-European countries, Amplatzer PFO stopper structure also is the Nitinol net umbrella-shaped structure of a double plate, connects through eel-like figure between two dishes, is sewed with the choked flow film in the centre of umbrella disk; Right the coiling of Spider PFO stopper is Nitinol net umbrella disk structure, and left side dish is made up of four connecting rods and the superincumbent PTFE film of stitching, and left side dish is connected for universal joint with right dish.Mainly be used for shutoff ductus arteriosus and inaccessible abnormal vascular in the vascular plug heart treatment formerly; Generally has columniform Nitinol RF; The product that has is sewed with the choked flow film inside, and the product that has does not have the choked flow film, intercepts blood flow through very fine and close Nitinol RF.Mainly be used for shutoff lung artery and vein fistula and ductus arteriosus in the turn heart treatment formerly, particularly undersized ductus arteriosus.
Atrial septal defect of the prior art (ASD) stopper, patent ductus arteriosus (PDA) stopper, ventricular septal defect (VSD) stopper, patent foramen ovale (PFO) stopper; Applied delivery conduit external diameter is usually greater than 5French (1mm=3French); Therefore require patient's age greater than 3 years old; For of the restriction of littler infant, and can not use because of blood vessel diameter; These stoppers have strict requirement for damaged anatomic form, not all damagedly all can use.Can pack into the delivery conduit of minor diameter of vascular plug and turn; Be used to treat patent ductus arteriosus; But they are fit to put into piped ductus arteriosus usually, for the ductus arteriosus of funnel-form, window shape, dumbbell shaped, aneurysmal, can not use because be difficult to fixing.
Summary of the invention
The technical problem that the present invention will solve is to provide a kind of medical plugging device of mixed type, can not carry and can not put into the complicated problems such as lesion locations of part dissection through the less delivery sheath of diameter to solve medical plugging device of the prior art.
Solving the technical scheme that technical problem of the present invention adopts is: a kind of medical plugging device is provided; It comprises a cock body; Said cock body is to form with the elastic yarn braiding; Said medical plugging device also comprises the turn that is connected and is used for fixing said cock body with said cock body, and an end of said turn and an end of said cock body are fixed together, and said turn twines with tinsel and is shaped as curling shape; Said turn is pulled to the side away from said cock body when force-extension, when removing external force, restore to the original state again.
As the further improvement of the medical plugging device of the present invention, said turn is around said cock body.
As the further improvement of the medical plugging device of the present invention, said turn is arranged on said cock body one side.
As the further improvement of the medical plugging device of the present invention, said turn is around one to three week.
As the further improvement of the medical plugging device of the present invention, an end of said turn and an end of said cock body are together telescopic joint through one.
As the further improvement of the medical plugging device of the present invention, an end of said cock body is provided with a bolt head, and said bolt head is connected with an induction system.
As the further improvement of the medical plugging device of the present invention, being shaped as of said cock body is cylindrical, spherical, taper, bell or umbrella shape.
As the further improvement of the medical plugging device of the present invention, said cock body has an inner chamber, is provided with a slice choked flow film at least in the said inner chamber.
As the further improvement of the medical plugging device of the present invention, said choked flow film is to be processed by expanded PTFE, politef or polyester.
As the further improvement of the medical plugging device of the present invention, said elastic yarn and tinsel are nitinol alloy wire or one of said elastic yarn and tinsel are nitinol alloy wire.
Compared with prior art, mixed type heart plugging device provided by the invention can be transported to appointed positions through the less delivery sheath percutaneous puncture of diameter.Firmly the plugging device compression is taken in the delivery sheath earlier, after from delivery sheath, discharging, cock body and turn can both be returned to original shape automatically rapidly.During the shutoff diseased region, cock body leans on resiliency supported at diseased region, and the choked flow film that inner chamber is provided with strengthens the effect of shutoff blood flow.Turn is pulled to the side away from cock body, and turn leans on the elasticity of self to push down heart or blood vessel wall portion, and stops cock body to move to the direction away from turn.Utilize the elasticity and the interaction of cock body and turn, cock body is fixed on needed position.The present invention has the following advantages: (1), cardiac plugging device of the present invention can be carried through the less delivery sheath of diameter, therefore can in the thinner infant patient of blood vessel, use; (2), heart plugging device of the present invention is because therefore its good stationarity can expand the scope of congenital heart disease interventional therapy in the lesion locations application of anatomical structure relative complex.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below, in the accompanying drawing:
Fig. 1 is the structural representation of the medical plugging device of the present invention;
Fig. 2 is the structural representation of cock body in the medical plugging device of the present invention;
Fig. 3 is the be hit by a bullet sketch map of spring coil of the medical plugging device of the present invention;
Fig. 4 is that the cock body of the medical plugging device of the present invention is connected sketch map with turn;
Fig. 5 is the cock body and the another kind of sketch map that is connected of turn of the medical plugging device of the present invention;
Fig. 6 is the connection sketch map of the bolt head of the medical plugging device of the present invention;
Fig. 7 is another structural representation of the medical plugging device of the present invention;
Fig. 8 is the sketch map of the umbrella disk shape cock body in another structure of the medical plugging device of the present invention;
Fig. 9 is the turn sketch map in another structure of the medical plugging device of the present invention.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The invention provides a kind of medical plugging device of implant into body heart, as shown in Figure 1, this medical plugging device is combined by two parts, and it comprises cock body 10 and is connected with this cock body 10 and around the turn 20 of this cock body 10.
As shown in Figure 2, this cock body 10 comprises end socket 1, choked flow film 2, Nitinol net 3 and bolt head 4.End socket 1 is processed with bolt head 4 usefulness rustless steels or Nitinol, and they are the fixing two ends of Nitinol net 3 respectively.Bolt head 4 also can be connected with an induction system, for example on bolt head 4, female thread is set, and is connected with the external screw thread coupling of induction system.This choked flow film 2 is processed by expanded PTFE (ePTFE), also can be processed by polytetrafluoroethylene (PTFE), polyester (PET) or its derived material.This choked flow film 2 is arranged in the inner chamber that the Nitinol net 3 of this cock body 10 forms.This Nitinol net 3 can be used single or the braiding of many marmems (like nitinol alloy wire) material forms, and it has super-elasticity and preset shape, like cylindrical, spherical, taper, bell or umbrella shape.The Nitinol net 3 that is appreciated that this cock body 10 also can form with other elastic yarn braidings.
As shown in Figure 3, this turn 20 can select for use nitinol alloy wire, medical stainless steel silk or medical cochrome silk to process.The concrete manufacturing process of this turn 20 is following: earlier that the nitinol alloy wire coiled is elongated spring, coil curl again, and therefrom the mind-set periphery is extended; As required, spiral can be around thoughtful three weeks, and is can the coiled matrix bowl-shape; Heat-treat then, make it to have super-elasticity.
In the present embodiment; The manufacturing process of this medical plugging device is following: at first; Weave this Nitinol net 3, its braiding process is following: earlier 72 nitinol alloy wires are woven into tubular net, then tubular net are packed in the mould of special shape; Carry out high-temperature process again, it is shaped as required form.Secondly; In the position shown in the end socket 1 72 nitinol alloy wires are condensed together; Nitinol tow end is passed the stainless sleeve pipe (not shown) of tiny tubulose, the mode that adopts the argon arc welding with nitinol alloy wire be enclosed within the outer field rustless steel sleeve pipe of nitinol alloy wire and merge; Then, use the laser spot welding mode, the end socket 1 that the metal material of smooth in appearance is processed is weldingly fixed on the rustless steel sleeve pipe, all wraps in the inside to nitinol alloy wire end and rustless steel sleeve pipe, prevents to stab tissue.Once more; The other end and turn 20 in the position shown in the bolt head 4 with 72 nitinol alloy wires condense together; Use preceding method, the end in the position shown in the bolt head 4 with 72 nitinol alloy wires passes another rustless steel sleeve pipe 6, and is as shown in Figure 4; Center-side with turn 20 penetrates this another rustless steel sleeve pipe 6 again, condenses together with Nitinol tow end.Then, nitinol alloy wire, turn 20 and another rustless steel sleeve pipe 6 are welded together, form a stiff end 5 through argon arc welding, as shown in Figure 5.Once more, as shown in Figure 6, through the mode of laser spot welding, a bolt head 4 and stiff end 5 are linked together.Bolt head 4 all wraps in the inside to nitinol alloy wire end and another rustless steel sleeve pipe 6, and bolt head 4 also is used for connecting the conveying wirerope.At last, can sew up the many or multilamellar choked flow film 2 of one deck at the inner chamber of cock body 10.In this enforcement, sew up three layers of choked flow film 2 in position shown in Figure 2, these three layers of choked flow films 2 are fixed together through the nitinol alloy wire on stitching thread and cock body 10 surfaces.
As shown in Figure 7; Fig. 7 is another structural representation of the medical plugging device of the present invention; The difference of the structure of itself and above description is: medical plugging device by umbrella disk shape cock body shown in Figure 8 30 and turn 40 shown in Figure 9 through long rustless steel sleeve pipe 55 be combined intos; Turn 40 is fixed on end socket 60 1 sides of umbrella disk shape cock body 30, the i.e. offside of the bolt head 90 of cock body.Umbrella disk shape cock body 30 shown in Figure 8 is formed by nitinol alloy wire braiding setting, and it comprises end socket 60, Nitinol net 70, choked flow film 80, bolt head 90.This choked flow film 80 is to link together through stitching thread and Nitinol net 70.As shown in Figure 9, within the stainless steel sleeve 50 of end insertion with turn 40, this stainless steel sleeve 50 is weldingly fixed on together with turn 40 ends through the argon arc welding.At last; Link together through the stainless steel sleeve 50 of a long rustless steel sleeve pipe 55 end socket of cock body 30 60 and turn 40, and through laser spot welding will long rustless steel sleeve pipe 55 with the end socket 60 of cock body 30 and the stainless steel sleeve 50 of turn 40 are weldingly fixed on.
Mixed type heart plugging device provided by the invention can be transported to appointed positions through the less delivery sheath percutaneous puncture of diameter.Firmly medical plugging device compression is taken in the delivery sheath earlier, after from delivery sheath, discharging, cock body and turn can both be returned to original shape automatically rapidly.During the shutoff diseased region, cock body leans on resiliency supported at diseased region, and the choked flow film that inner chamber is provided with strengthens the effect of shutoff blood flow.Turn is pulled to the side away from cock body, and turn leans on the elasticity of self to push down heart or blood vessel wall portion, and stops cock body to move to the direction away from turn.Utilize the elasticity and the interaction of cock body and turn, cock body is fixed on needed position.
The present invention compared with prior art has the following advantages: (1), heart plugging device of the present invention can be carried through the less delivery sheath of diameter, therefore can in the thinner infant patient of blood vessel, use; (2), heart plugging device of the present invention has good stationarity because of it, thereby can expand the scope of congenital heart disease interventional therapy in the lesion locations application of anatomical structure relative complex.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. medical plugging device; It comprises a cock body, and said cock body is to form with the elastic yarn braiding, and it is characterized in that: said medical plugging device also comprises the turn that is connected and is used for fixing said cock body with said cock body; One end of said turn and an end of said cock body are fixed together; Said turn twines with tinsel and is shaped as curling shape, and said turn is pulled to the side away from said cock body when force-extension, when removing external force, restore to the original state again.
2. medical plugging device as claimed in claim 1 is characterized in that: said turn is around said cock body.
3. medical plugging device as claimed in claim 1 is characterized in that: said turn is arranged on said cock body one side.
4. medical plugging device as claimed in claim 1 is characterized in that: said turn is around one to three week.
5. medical plugging device as claimed in claim 1 is characterized in that: an end of said turn and an end of said cock body are together telescopic joint through one.
6. medical plugging device as claimed in claim 1 is characterized in that: an end of said cock body is provided with a bolt head, and said bolt head is connected with an induction system.
7. medical plugging device as claimed in claim 1 is characterized in that: being shaped as of said cock body is cylindrical, spherical, taper, bell or umbrella shape.
8. medical plugging device as claimed in claim 1 is characterized in that: said cock body has an inner chamber, is provided with a slice choked flow film at least in the said inner chamber.
9. medical plugging device as claimed in claim 8 is characterized in that: said choked flow film is to be processed by expanded PTFE, politef or polyester.
10. medical plugging device as claimed in claim 1 is characterized in that: said elastic yarn and tinsel are nitinol alloy wire or one of said elastic yarn and tinsel are nitinol alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287504 CN101966092B (en) | 2010-09-16 | 2010-09-16 | Medical plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287504 CN101966092B (en) | 2010-09-16 | 2010-09-16 | Medical plugging device |
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| Publication Number | Publication Date |
|---|---|
| CN101966092A CN101966092A (en) | 2011-02-09 |
| CN101966092B true CN101966092B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010287504 Active CN101966092B (en) | 2010-09-16 | 2010-09-16 | Medical plugging device |
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| CN (1) | CN101966092B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103845096B (en) * | 2014-03-10 | 2016-05-04 | 上海形状记忆合金材料有限公司 | Left atrial appendage occlusion device and preparation method thereof |
| CN104546054B (en) * | 2015-01-19 | 2017-02-22 | 上海形状记忆合金材料有限公司 | Adjustable plugging device and release method |
| CN116236237B (en) * | 2022-12-21 | 2024-01-26 | 南京思脉德医疗科技有限公司 | Foramen ovale plugging device and plugging method |
| CN116236236B (en) * | 2022-12-21 | 2023-11-24 | 南京思脉德医疗科技有限公司 | Oval hole blood sealing plug and plugging device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785125A (en) * | 2004-12-06 | 2006-06-14 | 谢文愉 | Method and apparatus for performing lung volume-reducing operation |
| CN1810219A (en) * | 2005-01-28 | 2006-08-02 | 深圳市先健科技股份有限公司 | Heart septal defect stopper with self regulating function |
| CN101234041A (en) * | 2008-01-31 | 2008-08-06 | 上海交通大学 | Atrial septal defect plugging device knitted by degradable material |
-
2010
- 2010-09-16 CN CN 201010287504 patent/CN101966092B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785125A (en) * | 2004-12-06 | 2006-06-14 | 谢文愉 | Method and apparatus for performing lung volume-reducing operation |
| CN1810219A (en) * | 2005-01-28 | 2006-08-02 | 深圳市先健科技股份有限公司 | Heart septal defect stopper with self regulating function |
| CN101234041A (en) * | 2008-01-31 | 2008-08-06 | 上海交通大学 | Atrial septal defect plugging device knitted by degradable material |
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| CN101966092A (en) | 2011-02-09 |
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