CN204600798U - A kind of supporting structure of insertion type artificial cardiac valve - Google Patents
A kind of supporting structure of insertion type artificial cardiac valve Download PDFInfo
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- CN204600798U CN204600798U CN201520238406.3U CN201520238406U CN204600798U CN 204600798 U CN204600798 U CN 204600798U CN 201520238406 U CN201520238406 U CN 201520238406U CN 204600798 U CN204600798 U CN 204600798U
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- hatch frame
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Abstract
The utility model discloses a kind of supporting structure of insertion type artificial cardiac valve, belong to insertion type technical field of medical instruments, described support is the elastic support that can radially stretch, comprise tubular structure portion and skirt hatch frame portion, the diameter in described skirt hatch frame portion is greater than the diameter of described tube, described tubular structure portion is coaxially fixedly connected with skirt hatch frame portion, and the end of described supporting structure is provided with conveying link.Described support can radially stretch installation when being convenient to interventional therapy, conveying and release, the physiological structure of supporting structure and natural valve matches, and has certain self-locating function, is convenient to locate release rapidly and accurately, and being not easily shifted after release, and perivalvular leakage; Described conveying link can match with specific conveyer device, and in valve put procedure, when position of valve or off size suitable by conveyer device replacement or recovery, the difficulty of reduction doctor in operation process, improves success rate of operation.
Description
Technical field
This utility model belongs to insertion type technical field of medical instruments, is specifically related to a kind of supporting structure of insertion type artificial cardiac valve.
Background technology
Heart is the very important organ of human body, for blood circulation of human body provides power, heart is divided into left and right two parts, every part comprises a ventricle and atrium, separated by interventricular septum and interatrial septum between ventricle and ventricle and between atrium and atrium, there is the valve preventing blood reflux between room, room, tremulous pulse.Valve wherein between left atrium and left ventricle is Bicuspid valve, and the valve between right atrium and right ventricle is Tricuspid valve, and the valve between left ventricle and large artery trunks is aortic valve, and the valve between right ventricle and pulmonary artery is valve of pulmonary trunk.
Above-mentioned valve can along with the contraction of heart and the corresponding open and close of diastole, and therefore the valve of heart must bear the extruding of blood and surrounding lobe ring and washing away of blood for a long time.If because disease or other reason cause valve to close completely or to open insufficient, then backflowing and supply of blood flow deficiency of blood will be caused.Such as: valvular stenosis causes the smooth or incompetence of blood circulation to cause cardiac blood supply deficiency, thus greatly increase the weight of the burden of heart, cause cardiac failure, for this type of valvular heart disease, traditional therapy is out cardiac arrest after breast, under cryotron circulatory support, opens heart and carries out the surgical repair of valve or the displacement of artificial valve, make recovering beat of heart again after having performed the operation, complete subsequent operation.Surgery prosthetic valve replacement operation wound is large, and the recovery time of patient is long, therefore to gerontal patient often because of advanced age, body constitution is weak, pathological changes is heavy or merging Other diseases and avoid performing the operation.
Min. traumatic surgery technology is at development, wherein, Cardiac valve prosthesis can adopt conduit to introduce in patient body, namely cardiac valve is placed by Wicresoft's intervene operation, operation is without the need to opening breast, thus wound is little, post-operative recovery fast, for the valvular stenosis patient that those current conventional therapy means can not extend its life or alleviate its misery, provides a kind of new solution.But because this technology time of occurrence is shorter, be also faced with more problem at present.Such as the supporting structure of existing insertion type artificial cardiac valve is still in the initial stage of research, the kind of supporting structure is less, exist be unfavorable for quick and precisely discharging once discharge cannot again locate, discharge after in blood stream pressure with wash away the defects such as lower easy generation displacement, the method for there is no reaches desirable interventional therapeutic effect.
Utility model content
This utility model, for the problems referred to above, provides a kind of supporting structure of new insertion type artificial cardiac valve.
The purpose of this utility model is realized by following technical proposals:
A kind of supporting structure of insertion type artificial cardiac valve, described support is the elastic support that can radially stretch, comprise tubular structure portion and skirt hatch frame portion, the diameter in described skirt hatch frame portion is greater than the diameter of described tube, described tubular structure portion is coaxially fixedly connected with skirt hatch frame portion, and the end of described supporting structure is provided with conveying link.Described support can radially stretch, and when installing conveying, being convenient to support to tighten up in the conveyer device of loading finite volume, when strutting rapidly again after release from conveyer device, being convenient to fit tightly with destination organization, forming sufficient channel of blood flow; The physiological structure of the structure that described tubular structure matches with skirt hatch frame and natural valve matches (especially matching with the native physiological structure of Bicuspid valve and tricuspid surrounding tissue), there is certain self-locating function, be convenient to locate release rapidly and accurately, and release after-poppet close structure laminating channel of blood flow, not easily be shifted, this structure coordinates with surrounding tissue and is convenient to overlay film and forms plugging structure simultaneously, is conducive to avoiding perivalvular leakage; Matched with specific conveyer device by described conveying link, in valve put procedure, position is improper to be reset by conveyer device, and size Selection is improper to be reclaimed by conveyer device, reduce the difficulty of doctor in operation process, improve success rate of operation.As the blood inlet of blood behind described skirt hatch frame implantation position of valve, tubular structure is as the blood outlet of blood.
Alternately, described conveying link is the rod member with conveying connecting hole.
Alternately, described conveying link is positioned at support tubular structure side.As optional, its number is 2-6.When valve loads induction system, stand connection in described conveying link and conveyer device is connected, in operation process, first releasing bracket length 1/4 ~ 3/4, observe the placement location of support in heart, if off-position and pre-determined bit are equipped with deviation, interior pipe racks just can be pulled to move support to be withdrawn in interior pipe again, under the extruding of wall within the outer tube, support can draw in until got back to the state before release by epitheca parcel completely gradually, then reorientate again, release, like this just can first time support in place unsuccessful time, timely adjustment, until valve to be released in best position.
Alternately, the diameter of described support mid portion is less than both ends open, thus is reached the object be fixedly connected with lobe ring by the difference of physical form.
Alternately, described tubular structure portion internal diameter is between 20-32mm, selects the size of tubular structure in valve bracket further according to the size of patient's lobe ring.
Alternately, described support is also provided with overlay film sewing hole.By arranging overlay film sewing hole, the stitching of overlay film of being more convenient for, makes the inwall of overlay film and support or outer wall be combined more closely, firmly, more be conducive to avoiding occurring perivalvular leakage.Further, the two ends of described support are provided with overlay film sewing hole.As optional, the overlay film sewing hole number of described every one end is respectively 3-12, preferably 6 further.
Alternately, upper end, described tubular structure portion is provided with at least two group lobe leaf sewing holes.By arranging lobe leaf sewing hole, lobe leaf of being more convenient for is connected with the stitching of support, lobe leaf is combined with support more closely, firmly, not easily occurs damaged and tear.As optional, the group number of described lobe leaf sewing hole is 3 groups.As optional, described lobe leaf sewing hole is evenly distributed on upper end, tubular structure portion circumferentially.As optional, often organize the circular hole that lobe leaf sewing hole comprises two same diameter sizes.As optional, described lobe leaf sewing hole is positioned at the below of described conveying connecting hole.
Alternately, described tubular structure portion has network.As optional, the support unit of described network assumes diamond in shape.This structure is conducive to the elasticity that formation support radially stretches.Further, described tubular structure portion and described skirt hatch frame portion are interconnected by interconnective support unit.
Alternately, the described skirt hatch frame portion support connecting piece that comprises the many skirt opening skeletons from described tubular structure subordinate end to downward-extension and be connected between adjacent two skirt opening skeletons.As optional, skirt opening skeleton lower end is provided with overlay film lower end sewing hole.As optional, described support connecting piece is in " V " type.
Alternately, the diameter of the junction in described tubular structure portion and described skirt hatch frame portion is less than the diameter at all the other positions of support, makes the lateral surface of described supporting structure form in the junction in described tubular structure portion and described skirt hatch frame portion structure of caving in.
Alternately, the tubular structure portion of described support and skirt hatch frame portion have integrated formed structure.
Alternately, described support material is Nitinol.
Alternately, described support is formed through cut and heat treatment shaping by a NiTi pipe, and laser cutting machine cuts out the shape of valve bracket on thin-walled Nitinol pipe, then is shaped into predetermined shape by difform mold hot.Technique is simple, the support reliability that reproducible, cut global formation obtains and precision higher, reduce production cost and be easy to large-scale production.
Alternately, described support is provided with development site.As optional, described development site is positioned on described tubular structure portion outer wall or is positioned on described conveying link.
Alternately, described development site is positioned at lobe leaf minimum point corresponding position.
Alternately, described development site comprises development hole and the developing media that is filled in described development hole.
Alternately, described developing media is radiopaque metal medium.
Alternately, described developing media is bio-inert material.
Alternately, described developing media is one or more in platinum (Pt), platinumiridio (Pt/Ir), tantalum metal (Ta).
Alternately, described developing media is the development ball in the described development hole of press-in.
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way
The beneficial effects of the utility model:
The supporting structure of insertion type artificial cardiac valve described in the utility model can radially stretch, when installing conveying, be convenient to support to tighten up in the conveyer device of loading finite volume, when strutting rapidly again after release from conveyer device, be convenient to fit tightly with destination organization, form sufficient channel of blood flow; The physiological structure of the structure that described tubular structure matches with skirt hatch frame and natural valve matches (especially matching with the native physiological structure of Bicuspid valve and tricuspid surrounding tissue), there is certain self-locating function, be convenient to locate release rapidly and accurately, and release after-poppet close structure laminating channel of blood flow, not easily be shifted, this structure coordinates with surrounding tissue and is convenient to overlay film and forms plugging structure simultaneously, is conducive to avoiding perivalvular leakage; Matched with specific conveyer device by described conveying link, in valve put procedure, position is improper to be reset by conveyer device, and size Selection is improper to be reclaimed by conveyer device, reduce the difficulty of doctor in operation process, improve success rate of operation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of supporting structure described in embodiment 2;
Fig. 2 is the close-up schematic view of the conveying connection hole of a kind of supporting structure described in embodiment 2;
Fig. 3 is the close-up schematic view at the development hole place after press-in development ball in a kind of supporting structure described in embodiment 2;
Fig. 4 is for sewing up the front view after overlay film in a kind of supporting structure surface described in embodiment 2;
Fig. 5 is the upward view after a kind of supporting structure stitching lobe leaf described in embodiment 2;
Wherein, 1 for conveying link, 2 be lobe leaf sewing hole, 3 for lobe leaf minimum point development hole, 4 for upper end sewing hole, 5 for lower end sewing hole, 6 for support, 7 for support unit, 8 for development ball, 9 for overlay film, 10 be lobe leaf.
Detailed description of the invention
By the following examples this utility model is specifically described; what be necessary to herein means out is that the present embodiment is only for being further described this utility model; but can not be interpreted as the restriction to this utility model protection domain, the person skilled in the art in this field can make improvement and the adjustment of some non-intrinsically safes to this utility model according to above-mentioned content of the present utility model.
embodiment 1
A kind of supporting structure of insertion type artificial cardiac valve, described support is the elastic support that can radially stretch, comprise tubular structure portion and skirt hatch frame portion, the diameter in described skirt hatch frame portion is greater than the diameter of described tube, described tubular structure portion is coaxially fixedly connected with skirt hatch frame portion, and the end of described supporting structure is provided with conveying link.Described support can radially stretch, and when installing conveying, being convenient to support to tighten up in the conveyer device of loading finite volume, when strutting rapidly again after release from conveyer device, being convenient to fit tightly with destination organization, forming sufficient channel of blood flow; The physiological structure of the structure that described tubular structure matches with skirt hatch frame and natural valve matches (especially matching with the native physiological structure of Bicuspid valve and tricuspid surrounding tissue), there is certain self-locating function, be convenient to locate release rapidly and accurately, and release after-poppet close structure laminating channel of blood flow, not easily be shifted, this structure coordinates with surrounding tissue and is convenient to overlay film and forms plugging structure simultaneously, is conducive to avoiding perivalvular leakage; Matched with specific conveyer device by described conveying link, in valve put procedure, position is improper to be reset by conveyer device, and size Selection is improper to be reclaimed by conveyer device, reduce the difficulty of doctor in operation process, improve success rate of operation.As the blood inlet of blood behind described skirt hatch frame implantation position of valve, tubular structure is as the blood outlet of blood.
Alternately, described conveying link is the rod member with conveying connecting hole.
Alternately, described conveying link is positioned at support tubular structure side.As optional, its number is 2-6.When valve implants induction system, in described connecting hole and conveyer device, pipe far-end is connected, in operation process, first releasing bracket length 1/4 ~ 3/4, observe the placement location of support in heart, if off-position and pre-determined bit are equipped with deviation, interior pipe racks just can be pulled to move support to be withdrawn in interior pipe again, under the extruding of wall within the outer tube, support can draw in until got back to the state before release by epitheca parcel completely gradually, then reorientate again, release, like this just can first time support in place unsuccessful time, timely adjustment, until valve to be released in best position.
Alternately, the diameter of described support mid portion is less than both ends open, and support tube wall forms sunk structure, thus is reached the object be fixedly connected with lobe ring by the difference of physical form.
Alternately, described tubular structure portion internal diameter is between 20-32mm, selects the size of valve tubular structure further according to the size of patient's lobe ring.
Alternately, described support is also provided with overlay film sewing hole.By arranging overlay film sewing hole, the stitching of overlay film of being more convenient for, makes the inwall of overlay film and support or outer wall be combined more closely, firmly, more be conducive to avoiding occurring perivalvular leakage.Further, the two ends of described support are provided with overlay film sewing hole.As optional, the overlay film sewing hole number of described every one end is respectively 3-12, preferably 6 further.
Alternately, upper end, described tubular structure portion is provided with at least two group lobe leaf sewing holes.By arranging lobe leaf sewing hole, lobe leaf of being more convenient for is connected with the stitching of support, lobe leaf is combined with support more closely, firmly, not easily occurs damaged and tear.As optional, the group number of described lobe leaf sewing hole is 3 groups.As optional, described lobe leaf sewing hole is evenly distributed on upper end, tubular structure portion circumferentially.As optional, often organize the circular hole that lobe leaf sewing hole comprises two same diameter sizes.As optional, described lobe leaf sewing hole is positioned at the below of described conveying connecting hole.
Alternately, described tubular structure portion has network.As optional, the support unit of described network assumes diamond in shape.This structure is conducive to the elasticity that formation support radially stretches.Further, described tubular structure portion and described skirt hatch frame portion are interconnected by interconnective support unit.
Alternately, the described skirt hatch frame portion support connecting piece that comprises the many skirt opening skeletons from described tubular structure subordinate end to downward-extension and be connected between adjacent two skirt opening skeletons.As optional, skirt opening skeleton lower end is provided with overlay film lower end sewing hole.As optional, described support connecting piece is in " V " type.
Alternately, the diameter of the junction in described tubular structure portion and described skirt hatch frame portion is less than the diameter at all the other positions, makes the lateral surface of described supporting structure form in the junction in described tubular structure portion and described skirt hatch frame portion structure of caving in.
Alternately, the tubular structure portion of described support and skirt hatch frame portion have integrated formed structure.
Alternately, described support material is Nitinol.
Alternately, described support is formed through cut and heat treatment shaping by a NiTi pipe, and laser cutting machine cuts out the shape of valve bracket on thin-walled Nitinol pipe, then is shaped into predetermined shape by difform mold hot.Technique is simple, the support reliability that reproducible, cut global formation obtains and precision higher, reduce production cost and be easy to large-scale production.
Alternately, described support is provided with development site.As optional, described development site is positioned on described tubular structure portion outer wall or is positioned on described conveying link.
Alternately, described development site is positioned at lobe leaf minimum point corresponding position.
Alternately, described development site comprises development hole and the developing media that is filled in described development hole.
Alternately, described developing media is radiopaque metal medium.
Alternately, described developing media is bio-inert material.
Alternately, described developing media is one or more in platinum (Pt), platinumiridio (Pt/Ir), tantalum metal (Ta).
Alternately, described developing media is the development ball in the described development hole of press-in.
embodiment 2
The supporting structure 6 of a kind of insertion type artificial cardiac valve as shown in Figure 1 to Figure 3, supporting structure 6 is made up of the lattice support unit closed, and support 6 comprises: conveying link 1, support unit 7, lobe leaf sewing hole 2, lobe leaf minimum point development hole 3, upper end sewing hole 4, lower end sewing hole 5, development ball 8, support 6 is formed through cut and heat treatment shaping by a NiTi pipe, laser cutting machine cuts out the original-shape of valve bracket on thin-walled Nitinol pipe, then predetermined shape is shaped into by difform mold hot, support 6 comprises two parts after having shaped, a part in tubular construction, another part is skirt hatch frame, two parts are interconnected by interconnective support unit 7, wherein skirt hatch frame section diameter is greater than the diameter of described tubular opening part, skirt hatch frame is implanted the postpone of heart mitral position and is positioned at the blood inlet that side, atrium is blood, tubular structure is positioned at the blood outlet that ventricle side is blood.Both are less than both ends open by mid portion diameter, thus the object be fixedly connected with heart mitral annulus is reached by the difference of physical form, described tubular structure internal diameter is between 20-32mm, and operation consent doctor selects the valve tubular structure of suitable diameter according to the size of patient's lobe ring.
Described upper end sewing hole and lower end sewing hole lay respectively at the end of tubular structure and skirt hatch frame, and its number is respectively 3-12, and for sewing up the overlay film of valve surface, preferred number is 6 further.
Figure 2 shows that the close-up schematic view at this utility model conveying link 1 place, conveying link 1 is positioned at tubular opening structure top end, comprise outstanding rod member and be provided with the conveying connecting hole on rod member, can coordinate with induction system, for release valvular during operation process and recovery, when valve is loaded on conveyer device, the conveying connecting hole of tubular opening structure top end is needed to embed conveyer device top, the position that conveyer device is corresponding and shape size and conveying connecting hole cooperatively interact, then, in twitching, sheath makes epitheca be wrapped by valve again, also valve can be pushed away in loading outer tube in skirt structure side by external force.
As optional, conveying link 1 is positioned at support tubular structure side, its number is 2-6, conveying link 1 is when valve implants induction system, conveying link 1 is connected with pipe far-end in conveyer device, in operation process, first the thin film of certain length is discharged, observe the placement location of valve in heart, if off-position and pre-determined bit are equipped with deviation, interior pipe racks just can be pulled to move support 6 from newly withdrawing interior pipe, under the extruding of wall within the outer tube, support 6 can draw in until got back to the state before release by epitheca parcel completely gradually, then reorientate again, release, so both can when first time, valve placement location be unsuccessful, timely adjustment, until valve to be released in best position.
Be lobe leaf sewing hole 2 below conveying connecting hole, comprise the circular hole of two same diameter sizes, its number is 4-12, lobe leaf 10 is sewn to one end of described tubular structure, it is positioned at the inwall of support, and lobe leaf 10 can adopt prior art and the seam method of putting to carry out, and makes it be fixed on support inner face.
Figure 3 shows that the close-up schematic view at lobe leaf minimum point development hole 3 place after this utility model press-in development ball 8, lobe leaf minimum point development hole 3 is positioned on the support unit 7 of described support tubular structure side, its number is 2-6, preferably 4, the radiopaque metal ball of press-in in lobe leaf minimum point development hole 3, described lobe leaf minimum point development hole 3 is used to indicate the position of lobe leaf 10 in tubular structure, when indicating the position of lobe leaf 10 in heart in valve implant into body process and after implanting precalculated position, user discharges opportunity by the position judgment valve of development ball 8 in heart, valve surgery whether success and follow-up patient's health check-up time support whether be shifted, described development ball 8 is bio-inert material, its material can be platinum (Pt), platinumiridio (Pt/Ir), tantalum metal (Ta), further preferably platinum, preferred number is 4 further.
Figure 4 shows that the front view after this utility model stitching overlay film, described overlay film 9 is sewn to the outer surface of support tubular structure and skirt structure, further described overlay film 9 is sewn to support 6 surface, the perivalvular leakage produced after preventing valve from implanting lobe ring, surface is sewed with one or more layers film, its material is PET, e-PTFE, pericardium material, and thickness is 0.05 ~ 0.2mm, further preferably 0.1mm.
Fig. 5 is the upward view after this utility model sews up valve, described lobe leaf 10 utilizes stitching thread to make to be fixed in described support tubular structure, and further described lobe leaf 10 can be biological tissue's (Cor Sus domestica bag, bovine pericardium, Cor Sus domestica lobe, Cor Bovis seu Bubali lobe), macromolecular material, tissue engineered heart valve.
The foregoing is only preferred embodiment of the present utility model, is only illustrative for this utility model, and nonrestrictive; Those of ordinary skill in the art understand, and can carry out many changes in the spirit and scope that this utility model limits to it, amendment, and even equivalence is changed, but all will fall into protection domain of the present utility model.
Claims (10)
1. the supporting structure of an insertion type artificial cardiac valve, it is characterized in that, described support is the elastic support that can radially stretch, comprise tubular structure portion and skirt hatch frame portion, the diameter in described skirt hatch frame portion is greater than the diameter of described tube, described tubular structure portion is coaxially fixedly connected with skirt hatch frame portion, and the end of described supporting structure is provided with conveying link.
2. the supporting structure of insertion type artificial cardiac valve according to claim 1, is characterized in that, the two ends of described support are provided with overlay film sewing hole.
3. the supporting structure of insertion type artificial cardiac valve according to claim 1, is characterized in that, upper end, described tubular structure portion is provided with at least two group lobe leaf sewing holes.
4. the supporting structure of insertion type artificial cardiac valve according to claim 1, is characterized in that, described tubular structure portion has network.
5. the supporting structure of insertion type artificial cardiac valve according to claim 4, is characterized in that, the support unit of described network assumes diamond in shape.
6. the supporting structure of insertion type artificial cardiac valve according to claim 1, it is characterized in that, the support connecting piece that described skirt hatch frame portion comprises the many skirt opening skeletons from described tubular structure subordinate end to downward-extension and is connected between adjacent two skirt opening skeletons.
7. the supporting structure of insertion type artificial cardiac valve according to claim 6, is characterized in that, described support connecting piece is in " V " type.
8. the supporting structure of insertion type artificial cardiac valve according to claim 1, it is characterized in that, the diameter of the junction in described tubular structure portion and described skirt hatch frame portion is less than the diameter at all the other positions, makes the lateral surface of described supporting structure form in the junction in described tubular structure portion and described skirt hatch frame portion structure of caving in.
9. the supporting structure of insertion type artificial cardiac valve according to claim 1, is characterized in that, tubular structure portion and the skirt hatch frame portion of described support have integrated formed structure.
10. the supporting structure of insertion type artificial cardiac valve according to claim 1, is characterized in that, described support material is Nitinol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520238406.3U CN204600798U (en) | 2015-04-20 | 2015-04-20 | A kind of supporting structure of insertion type artificial cardiac valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520238406.3U CN204600798U (en) | 2015-04-20 | 2015-04-20 | A kind of supporting structure of insertion type artificial cardiac valve |
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| CN204600798U true CN204600798U (en) | 2015-09-02 |
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| CN201520238406.3U Active CN204600798U (en) | 2015-04-20 | 2015-04-20 | A kind of supporting structure of insertion type artificial cardiac valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371570A (en) * | 2017-10-24 | 2018-08-07 | 杭州启明医疗器械有限公司 | A kind of recyclable transport system of intervention heart valve of stable operation |
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2015
- 2015-04-20 CN CN201520238406.3U patent/CN204600798U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108371570A (en) * | 2017-10-24 | 2018-08-07 | 杭州启明医疗器械有限公司 | A kind of recyclable transport system of intervention heart valve of stable operation |
| CN108371570B (en) * | 2017-10-24 | 2023-10-31 | 杭州启明医疗器械股份有限公司 | Interventional heart valve recyclable conveying system with stable operation |
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| CB03 | Change of inventor or designer information |
Inventor after: Yu Qifeng Inventor after: Qin Tao Inventor before: Yu Qifeng Inventor before: Wang Haishan Inventor before: Qin Tao |
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| CB03 | Change of inventor or designer information |