CN204839631U - Muscular ventricular septal defect plugging device - Google Patents
Muscular ventricular septal defect plugging device Download PDFInfo
- Publication number
- CN204839631U CN204839631U CN201520484777.XU CN201520484777U CN204839631U CN 204839631 U CN204839631 U CN 204839631U CN 201520484777 U CN201520484777 U CN 201520484777U CN 204839631 U CN204839631 U CN 204839631U
- Authority
- CN
- China
- Prior art keywords
- septal defect
- stopper
- ventricular septal
- plugging device
- cylindrical part
- Prior art date
- 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.)
- Active
Links
Landscapes
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model provides a muscular ventricular septal defect plugging device, including the plugging device body, the plugging device body include the shutoff dish that the cylindrical partial up end of cylindrical part and this links to each other, its characterized in that, the shutoff dish only have one, be located cylindrical partial one end. The utility model discloses a muscular ventricular septal defect plugging device for treatment room septal defect's patient. This plugging device needn't carry out traditional division chest treatment send into the human body through the intervention mode in, and it is too obvious that chest surgical treatment of advantage is opened than the surgery to the intervention mode, and the operation security has obtained very big guarantee. In addition, this plugging device does not have the umbrella face at the right ventricle face, can not wear and tear to the tricuspid valve chordae tendineae, only designed the umbrella face at the left ventricle face, and left ventricle pressure wants big than right ventricle pressure usually, so can play the fixed effect of plugging device.
Description
Technical field
This utility model relates to a kind of muscular ventricular septal defect stopper and preparation method thereof, and for the Occlusion therapy of perforation of ventricular septum after heart infarction, general congenital pars muscularis room lacks can not be very large, and spontaneous recovery probability is large, and sickness rate accounts for had family scarce 5%.And the room of perforation of ventricular septum lacks larger after heart infarction, be positioned at basilar part more, close to Bicuspid valve and attachment place of Tricuspid valve papillary muscles, the stopper umbrella cover putting stopper rear right ventricular side easily causes wearing and tearing and the fracture of papillary muscles and chordae tendineae, and stopper of the present utility model can avoid this type of complication.
Background technology
In ventricular septal defect shutoff, stopper wearing and tearing chordae tendineae of tricuspid valve and cause rupture of chordae tendineae to become a comparatively serious complication.Tricuspid valve is made up of septal leaflet, back lobe and front lobe, and wherein, lobe is maximum, has been the normally closed major part of Tricuspid valve.The intersection point of Tricuspid valve septal leaflet and front lobe is sitting at the leading edge at membranous part interval.Under Tricuspid valve lobe, structure is made up of chordae tendineae and papillary muscles.The relation of Tricuspid valve and ventricular septal defect is very close.On the one hand, septal leaflet junctional area, defect edge and the adhesion of Tricuspid valve septal leaflet chordae tendineae before the contiguous Tricuspid valve of defect.On the other hand, 60% transcatheter closure merges pseudo theca tumor, the latter is because Tricuspid valve septal leaflet edge and chordae tendineae stick together under the long-term impact of defect shunting, defect and top septal leaflet form aneurysm of membranous septum wall, adhesion chordae tendineae and the defect few fibers tissue of septal leaflet free edge surround aneurysm of membranous septum right ventricle side breach (outlet), and defect left ventricle side breach is then considered to entrance.Therefore, no matter be surgical operation or interventional therapy, all likely damage tricuspid chordae tendineae and cause iatrogenic tricuspid incompetence.If damage more tiny chordae tendineae only to have and backflow on a small quantity, if the larger chordae tendineae of damage, lobe chordae tendineae particularly, then may to cause in Tricuspid valve-to backflow in a large number, must open that breast direct-view is lower repairs.
Above-described complication, operate to operation or stopper to make defect relevant.Existing ventricular septal defect is in two disc like design, as shown in Figure 1, upper and lower two shutoff dishes 11 must be seated in left and right ventricles, the length of stopper interlude 12 is mated with defect length, otherwise the clamping formed compared with great, easily causes the wearing and tearing of valvular tissue and chordae tendineae around defect.
Summary of the invention
The purpose of this utility model redesigns a kind of muscular ventricular septal defect stopper and preparation method thereof, take into account many-sided requirements such as heat treatment shaping technique, structural design, stopper is more fitted characteristics of human body in the treatment of muscular ventricular septal defect, avoid the risk that stopper damages for chordae tendineae of tricuspid valve, reduce complication.
In order to achieve the above object, the technical solution of the utility model is to provide a kind of muscular ventricular septal defect stopper, comprise stopper body, described stopper body comprises the shutoff dish that cylindrical part is connected with this cylindrical part upper surface, it is characterized in that, described shutoff dish only has one, is positioned at one end of cylindrical part.
Preferably, described shutoff dish is located in left ventricle, and described cylindrical portion is divided into muscular ventricular septal defect place.
Preferably, the middle part of described cylindrical part is formed with groove.
More preferably, described groove is arranged with the form of the periphery of circumferential cylindrical portion.
Preferably, the cross section of described shutoff dish is circular, and longitudinal section is trapezoidal or rectangle.
More preferably, the maximum gauge of described shutoff dish is greater than the diameter of cylindrical part.
Preferably, at least one floor height molecule choked flow film is provided with in described stopper body.
More preferably, described macromolecule choked flow film is polyester fiber film.
More preferably, described macromolecule choked flow film has 3-5 layer.
More preferably, the inside of described cylindrical part and shutoff dish is equipped with macromolecule choked flow film, and macromolecule choked flow film is arranged along the direction of the axis perpendicular to cylindrical part and shutoff dish.
Preferably, the upper surface of described shutoff dish adopts silk material to close up, and does not arrange the constraint of rustless steel steel bushing.
Preferably, the diameter A of the lower surface of described shutoff dish is 8-10mm, and the length L of cylindrical part is 10-18mm.
Preferably, described stopper body is woven into by Nitinol.
This utility model additionally provides the manufacture method of above-mentioned muscular ventricular septal defect stopper, it is characterized in that, comprising:
Step 1: carried out by Nitinol being woven into cylindric silk screen on mould, carry out first time heat treatment, heat treatment temperature is 300-400 DEG C, and the time is 5-50min;
Step 2: by silk screen from after mould takes off, will wherein adopt silk material to close up in one end, the other end adopts the constraint of rustless steel steel bushing, or is all adopted at two ends rustless steel steel bushing to fetter;
Step 3: loaded by silk screen in shaper, carries out second time heat treatment, and heat treatment temperature is 500-600 degree, and the time is 5-50min, forms stopper body;
Step 4: the macromolecule choked flow film closing the effect stopping blood flow at stopper body inseam, obtains muscular ventricular septal defect stopper.
Compared with prior art, the beneficial effects of the utility model are:
1, this utility model has prepared a kind of muscular ventricular septal defect stopper, is used for the treatment of the patient of ventricular septal defect.This stopper is sent in human body by intervening mode, and need not carry out traditional breast of opening and treat, intervening mode comparatively surgery open chest surgery treatment advantage is too obvious, and operation safety obtains very large guarantee.In addition, this stopper does not have umbrella cover in right ventricle face, can not may wear to chordae tendineae of tricuspid valve, only devises umbrella cover in left ventricle face, and usually left ventricular pressure comparatively right ventricular pressure want large, so the fixing effect of stopper can be played.
2, devise groove at cylindrical part in this utility model, owing to have employed above-mentioned design, muscular ventricular septal defect stopper of the present utility model suitably can stretch and adjust length, with the better adaptability at defect place.
3, in this utility model, the upper disk surface of shutoff dish does not arrange rustless steel steel bushing, is beneficial to the endothelialization of apparatus in left ventricle.
4, material of the present utility model is preferably NiTi alloy material, this material is widely used at medical field, have good biocompatibility, in energy implant into body, and it has unique super-elasticity, large deformation can be carried out, refer in this patent in inner chamber stopper being drawn in sheath pipe, now large deformation occurs, after arriving lesion locations, after releasing sheath pipe, stopper can return to the function of original state.
Accompanying drawing explanation
Fig. 1 is existing stopper structural representation;
Fig. 2 is cylindric silk screen schematic diagram;
Fig. 3 a is the silk screen schematic diagram that two ends all adopt rustless steel steel bushing to fetter;
Fig. 3 b is that wherein one end adopts silk material to close up, and the other end adopts the silk screen schematic diagram of rustless steel steel bushing constraint;
Fig. 4 a is the silk screen schematic diagram after molding;
Fig. 4 b is the silk screen schematic diagram after another kind of molding;
Fig. 5 is the reeded silk screen schematic diagram of tool;
Fig. 6 is the silk screen schematic diagram that upper disk surface does not arrange rustless steel cylinder sleeve;
Fig. 7 is muscular ventricular septal defect stopper schematic diagram.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth this utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of utility model.In addition should be understood that those skilled in the art can make various changes or modifications this utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read this utility model instruction.
Embodiment 1
As shown in Figure 7, a kind of muscular ventricular septal defect stopper, comprise the stopper body that nitinol alloy wire is woven into, described stopper body comprises the shutoff dish 2 that cylindrical part 1 is connected with this cylindrical part 1 upper surface, described shutoff dish 2 only has one, is positioned at one end of cylindrical part 1.Described shutoff dish 2 is located in left ventricle, and described cylindrical part 1 is located at muscular ventricular septal defect place.
The cross section of described shutoff dish 2 is circular, and longitudinal section is trapezoidal.The diameter A of the lower surface of described shutoff dish 2 is 8-10mm, and the length L of cylindrical part 1 is 10-18mm.The maximum gauge of described shutoff dish 2 is greater than the diameter of cylindrical part 1.
4 floor height molecule choked flow films 4 are provided with in described stopper body.Described cylindrical part 1 and the inside of shutoff dish 2 are equipped with macromolecule choked flow film 4, and macromolecule choked flow film 4 is arranged along the direction of the axis perpendicular to cylindrical part 1 and shutoff dish 2.Described macromolecule choked flow film 4 is polyester fiber film.
The manufacture method of above-mentioned muscular ventricular septal defect stopper is:
Step 1: carried out by Nitinol being woven into cylindric silk screen on mould, as shown in Figure 1, carry out first time heat treatment, heat treatment temperature is 350 DEG C, and the time is 25min;
Step 2: by silk screen from after mould takes off, all adopted at two ends rustless steel steel bushing 5 to fetter, as shown in Figure 3 a;
Step 3: loaded by silk screen in shaper, carries out second time heat treatment, and heat treatment temperature is 550 degree, and the time is 25min, forms stopper body as shown in fig. 4 a; According to the difference of mould, different shapes can be shaped into.
Step 4: sew up the macromolecule choked flow film 4 that 4 layers are worked to stop blood flow in stopper body, obtain muscular ventricular septal defect stopper as shown in Figure 7.
During use, bore a hole after the pars muscularis interventricular septum of patient exists defect or heart infarction, after the width confirming defect through ultrasonic or radiography and length, select qualified stopper.After setting up track from femoral vein, after being connected with pushing pincers the lower end of the cylindrical part 1 of stopper, send into lesion locations by sheath pipe.Stopper is seated in lesion locations, and determines firmly, release, withdraws from pushing pincers.Withdraw from sheath pipe, by femoral venous puncture place pressure dressing.
Embodiment 2
A kind of muscular ventricular septal defect stopper, be similar to embodiment 1, difference is: as shown in Figure 5, and the middle part of cylindrical part 1 is formed with groove 3.Described groove 3 is arranged with the form of the periphery of circumferential cylindrical portion 1.Its manufacture method is similar to embodiment 1, and shaper only used in step 3 is different.
Embodiment 3
A kind of muscular ventricular septal defect stopper, be similar to embodiment 2, difference is: the upper surface of described shutoff dish 2 adopts silk material to close up, and does not arrange the constraint of rustless steel steel bushing.
The manufacture method of above-mentioned muscular ventricular septal defect stopper is:
Step 1: carried out by Nitinol being woven into cylindric silk screen on mould, as shown in Figure 1, carry out first time heat treatment, heat treatment temperature is 350 DEG C, and the time is 25min;
Step 2: by silk screen from after mould takes off, will wherein adopt silk material to close up in one end, the other end adopts rustless steel steel bushing 5 to fetter, as shown in Figure 3 b;
Step 3: loaded by silk screen in shaper, carries out second time heat treatment, and heat treatment temperature is 550 degree, and the time is 25min, forms stopper body as shown in Figure 6; According to the difference of mould, different shapes can be shaped into.
Step 4: sew up the macromolecule choked flow film that 4 layers are worked to stop blood flow in stopper body, the muscular ventricular septal defect stopper obtained.
Embodiment 4
A kind of muscular ventricular septal defect stopper, be similar to embodiment 1, difference is: as shown in Figure 4 b, and the longitudinal section of described shutoff dish 2 is rectangle.Its manufacture method is similar to embodiment 1, and shaper only used in step 3 is different.
Claims (9)
1. a muscular ventricular septal defect stopper, comprise stopper body, described stopper body comprises the shutoff dish (2) that cylindrical part (1) is connected with this cylindrical part (1) upper surface, it is characterized in that, described shutoff dish (2) only has one, is positioned at one end of cylindrical part (1).
2. muscular ventricular septal defect stopper as claimed in claim 1, it is characterized in that, described shutoff dish (2) is located in left ventricle, and described cylindrical part (1) is located at muscular ventricular septal defect place.
3. muscular ventricular septal defect stopper as claimed in claim 1, it is characterized in that, the middle part of described cylindrical part (1) is formed with groove (3).
4. muscular ventricular septal defect stopper as claimed in claim 3, it is characterized in that, described groove (3) is arranged with the form of the periphery of circumferential cylindrical portion (1).
5. muscular ventricular septal defect stopper as claimed in claim 1, is characterized in that, the cross section of described shutoff dish (2) is circular, and longitudinal section is trapezoidal or rectangle.
6. muscular ventricular septal defect stopper as claimed in claim 1, is characterized in that, be provided with at least one floor height molecule choked flow film (4) in described stopper body.
7. muscular ventricular septal defect stopper as claimed in claim 6, it is characterized in that, described cylindrical part (1) and the inside of shutoff dish (2) are equipped with macromolecule choked flow film (4), and macromolecule choked flow film (4) is arranged along the direction of the axis perpendicular to cylindrical part (1) and shutoff dish (2).
8. muscular ventricular septal defect stopper as claimed in claim 1, is characterized in that, the upper surface of described shutoff dish (2) adopts silk material to close up, and does not arrange the constraint of rustless steel steel bushing.
9. muscular ventricular septal defect stopper as claimed in claim 1, it is characterized in that, described stopper body is woven into by Nitinol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520484777.XU CN204839631U (en) | 2015-07-07 | 2015-07-07 | Muscular ventricular septal defect plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520484777.XU CN204839631U (en) | 2015-07-07 | 2015-07-07 | Muscular ventricular septal defect plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204839631U true CN204839631U (en) | 2015-12-09 |
Family
ID=54730236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520484777.XU Active CN204839631U (en) | 2015-07-07 | 2015-07-07 | Muscular ventricular septal defect plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204839631U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107019530A (en) * | 2017-06-02 | 2017-08-08 | 上海捍宇医疗科技有限公司 | A kind of across valve device |
| CN109381239A (en) * | 2018-10-08 | 2019-02-26 | 陈金凤 | A kind of patend ductus arteriosus occluder |
| CN110251182A (en) * | 2019-06-14 | 2019-09-20 | 凯斯蒂南京医疗器械有限公司 | A kind of umbellate form tissue plug |
| WO2022252463A1 (en) * | 2021-06-03 | 2022-12-08 | 上海形状记忆合金材料有限公司 | Implantable instrument having vertical double-concave structure |
-
2015
- 2015-07-07 CN CN201520484777.XU patent/CN204839631U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107019530A (en) * | 2017-06-02 | 2017-08-08 | 上海捍宇医疗科技有限公司 | A kind of across valve device |
| CN107019530B (en) * | 2017-06-02 | 2023-09-08 | 上海捍宇医疗科技股份有限公司 | Valve-crossing device |
| CN109381239A (en) * | 2018-10-08 | 2019-02-26 | 陈金凤 | A kind of patend ductus arteriosus occluder |
| CN110251182A (en) * | 2019-06-14 | 2019-09-20 | 凯斯蒂南京医疗器械有限公司 | A kind of umbellate form tissue plug |
| WO2022252463A1 (en) * | 2021-06-03 | 2022-12-08 | 上海形状记忆合金材料有限公司 | Implantable instrument having vertical double-concave structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204839631U (en) | Muscular ventricular septal defect plugging device | |
| CN104352260B (en) | Left atrial appendage occlusion system | |
| CN204971420U (en) | Patent blocking device for arterial duct | |
| CN104274224B (en) | Left atrial appendage occlusion device | |
| CN204133530U (en) | Occluder for left auricle | |
| CN106037862B (en) | Variable waist designs occluder for left auricle | |
| CN206214129U (en) | A kind of peplos plugging device | |
| WO2015002625A1 (en) | The occluder device for cardiovascular system | |
| CN205339017U (en) | Acleistocardia plugging device that sufficiency is high | |
| CN206995284U (en) | Degradable foramen ovale of heart arteriosus occluder | |
| CN207785224U (en) | Degradable heart occluder for left auricle | |
| CN103300895A (en) | Single-layer knitted umbrella-shaped cardiac septum occluder | |
| CN204971422U (en) | Plugging device with intensive net of blocking | |
| CN201814605U (en) | Asymmetric double-plate-type left auricle occluder | |
| CN104173122A (en) | Plugging device suitable for postoperation perivalvular leakage | |
| CN205339015U (en) | Atrium diverging device | |
| CN206214140U (en) | A kind of variable waist design occluder for left auricle | |
| CN2610872Y (en) | Asymmetric ventricular septal defect plugging device | |
| CN108926366B (en) | Rubber injection plugging left auricle device with nickel-titanium alloy mesh cover at front end | |
| KR102389237B1 (en) | Multifunctional occlusion device | |
| CN2920184Y (en) | Ventricular septal defect occluder | |
| CN103300896B (en) | Bilateral single-layer umbrella type plugging device | |
| CN100396246C (en) | Blockage for septal defect between cardiac atrium and ventricle | |
| CN106137292B (en) | A kind of device for left auricle of heart ligation operation | |
| CN203954415U (en) | Ventricular septal defect interposing catheter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |