CN114041835A - Recoverable plugging device for treating congenital heart disease - Google Patents
Recoverable plugging device for treating congenital heart disease Download PDFInfo
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- CN114041835A CN114041835A CN202111373747.8A CN202111373747A CN114041835A CN 114041835 A CN114041835 A CN 114041835A CN 202111373747 A CN202111373747 A CN 202111373747A CN 114041835 A CN114041835 A CN 114041835A
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- Prior art keywords
- umbrella
- rod
- connecting rod
- net
- plugging
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- 208000028831 congenital heart disease Diseases 0.000 title claims abstract description 30
- 208000002330 Congenital Heart Defects Diseases 0.000 title claims abstract description 22
- 230000000903 blocking effect Effects 0.000 claims description 11
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 3
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000001356 surgical procedure Methods 0.000 abstract 1
- 230000003902 lesion Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 3
- 208000013914 atrial heart septal defect Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000036285 pathological change Effects 0.000 description 3
- 231100000915 pathological change Toxicity 0.000 description 3
- 208000035478 Interatrial communication Diseases 0.000 description 2
- 206010003664 atrial septal defect Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 208000004550 Postoperative Pain Diseases 0.000 description 1
- 208000035187 Ring chromosome 14 syndrome Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000005246 left atrium Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000005245 right atrium Anatomy 0.000 description 1
Images
Classifications
-
- 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
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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
- A61B2017/00606—Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
-
- 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
- A61B2017/00632—Occluding a cavity, i.e. closing a blind opening
Abstract
The invention discloses a recyclable plugging device for treating congenital heart disease, which comprises a first umbrella-shaped net, a choke tube and a second umbrella-shaped net which are sequentially connected, wherein a first plugging end head is fixed in the middle of the outer side of the first umbrella-shaped net, and a second plugging end head is fixed in the middle of the outer side of the second umbrella-shaped net; the inner cavity of the first umbrella-shaped net is provided with a connecting rod, the connecting rod is rotatably connected with the first plugging end head, the other end of the connecting rod is detachably connected with a pushing rod, the diameter of the connecting rod is the same as that of the pushing rod, and the tail end of the pushing rod sequentially penetrates through the choke tube and the second plugging end head; a connecting pipe is sleeved outside the push rod, and one end of the connecting pipe is detachably connected with the second plugging end; the end of the second plugging end far away from the second umbrella-shaped net is fixed with a limiting piece, the end of the connecting rod far away from the first plugging end is provided with a positioning groove, and the limiting piece is matched with the positioning groove. The invention has stable structure and good locking effect, and can prevent the stopper from falling off; and the recovery of the occluder can be realized under the condition of not performing open chest surgery.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a recyclable occluder for treating congenital heart disease.
Background
Atrial septal defect is a common congenital heart disease, which means that the atrial septal defect is abnormal in the process of generation and absorption and fails to close normally, so that a communicating hole is left between the left atrium and the right atrium. The current means for treating atrial septal defects are mainly surgical operations and interventional treatment methods. The heart defect blocking device is a medical appliance which is implanted through a skin and a catheter and used for treating congenital heart disease in a non-surgical mode. The instrument is a self-expanding double-disc structure, and the two discs are connected through a short waist to form an I-shaped structure. After the plugging device is sent to a heart defect part by an instrument, the heart defect plugging device is positioned back and forth by the double-disc structures at the two ends of the heart defect plugging device, and the waist part plugs the heart defect position to prevent blood from shunting, thereby playing a role in plugging the heart defect.
However, since the heart defect occluder needs to be inserted into the heart defect site, if the radial size of the defect occluder is too large, the heart defect occluder is difficult to be inserted into the heart defect site, and if it is too small, the optimal anastomosis effect is not achieved. In addition, the existing occluder for interventional therapy of congenital heart diseases has the defects of unreasonable structure, poor pressure resistance, easy deformation and poor occlusion performance. Therefore, when interventional therapy is performed, if the above situation occurs, the heart defect occluder needs to be taken out and replaced for treatment, and the existing heart defect occluder is generally taken out through a mid-open chest or side-open chest operation, so that postoperative pain is severe and recovery is slow, and a recyclable heart defect occluder is needed.
Disclosure of Invention
The invention aims to provide a recyclable occluder for treating congenital heart disease, which solves the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a recyclable occluder for treating congenital heart disease, which comprises a first umbrella-shaped net, a choke tube and a second umbrella-shaped net which are sequentially connected, wherein the middle part of the outer side of the first umbrella-shaped net is fixedly connected with a first occluding end head, and the middle part of the outer side of the second umbrella-shaped net is fixedly connected with a second occluding end head; a connecting rod is arranged in the inner cavity of the first umbrella-shaped net, one end of the connecting rod is rotatably connected with the first plugging end head, the other end of the connecting rod is detachably connected with a pushing rod, the diameter of the connecting rod is the same as that of the pushing rod, and the tail end of the pushing rod sequentially penetrates through the choke tube and the second plugging end head; a connecting pipe is sleeved outside the push rod, and one end of the connecting pipe is detachably connected with the second plugging end; the one end fixedly connected with locating part that the second shutoff end was kept away from the umbelliform net of second, the connecting rod is kept away from the one end of first shutoff end has seted up the constant head tank, the locating part with the constant head tank looks adaptation.
Preferably, the limiting part comprises elastic rods symmetrically fixed on the second plugging end, limiting balls are fixedly connected to the tail ends of the elastic rods, the positioning grooves are symmetrically formed in the connecting rod, and the limiting balls are matched with the positioning grooves.
Preferably, the diameter of the first umbrella-shaped net is smaller than that of the second umbrella-shaped net, and the inner sides of the first umbrella-shaped net and the second umbrella-shaped net are provided with wave grooves.
Preferably, one end of the connecting rod, which is close to the pushing rod, is fixedly connected with a stud, one end of the pushing rod, which is close to the connecting rod, is provided with a thread groove, and the connecting rod and the pushing rod are in thread fit through the stud and the thread groove.
Preferably, the choke tube is an elastic tube, two ends of the choke tube are abutted to the pushing rod, a supporting member is arranged in the choke tube and comprises two connecting rings which are sleeved on the pushing rod, the connecting rings are fixed on the inner wall of the choke tube, a plurality of arc-shaped elastic rods are arranged between the connecting rings, and two ends of each arc-shaped elastic rod are fixedly connected with the two connecting rings respectively.
Preferably, the connecting pipe is close to a plurality of guide bulges fixedly connected with the inner wall of one end of the second plugging end head, the guide bulges are arranged at equal intervals along the circumferential direction, and the guide bulges are in contact fit with the push rod.
Preferably, the outer side of the connecting pipe is sleeved with a conveying sheath pipe, and the first umbrella-shaped net, the flow blocking pipe and the second umbrella-shaped net are arranged in the conveying sheath pipe.
Preferably, the connecting pipe is close to one end fixedly connected with horn mouth of second shutoff end, the horn mouth with carry sheath pipe inner wall contact cooperation.
Preferably, the first umbrella-shaped net and the second umbrella-shaped net are both made of nickel-titanium alloy memory wires.
The invention discloses the following technical effects: according to the recyclable occluder for treating congenital heart disease, after the occluder is implanted and completely extended, acting force can be further applied to the occluder by utilizing the matching of the limiting piece on the second occlusion end head and the positioning groove on the connecting rod, the structure is stable, the locking effect is good, and the occluder can be prevented from falling off; in the occluder provided by the invention, the connecting rod is always arranged on the occluder, the connecting rod can be reused to realize the connection with the push rod, so that the connecting pipe is conveniently connected with the second occlusion end, the occluder can be recovered under the condition of not performing a chest opening operation, and the operation is more convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a retrievable occluder of the present invention for treating congenital heart disease;
FIG. 2 is a schematic diagram of the expanded configuration of the occluding device of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is a partial enlarged view of B in FIG. 1;
the device comprises a first umbrella-shaped net-1, a choke tube-2, a second umbrella-shaped net-3, a first plugging end-4, a second plugging end-5, a connecting rod-6, a pushing rod-7, a connecting tube-8, a positioning groove-9, an elastic rod-10, a limiting ball-11, a stud-12, a thread groove-13, a connecting ring-14, an arc elastic rod-15, a guide bulge-16, a conveying sheath tube-17 and a bell mouth-18.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a recoverable plugging device for treating congenital heart disease, which comprises a first umbrella-shaped net 1, a choke tube 2 and a second umbrella-shaped net 3 which are connected in sequence, wherein the first umbrella-shaped net 1 and the second umbrella-shaped net 3 are made of nickel-titanium alloy memory wires, the middle part of the outer side of the first umbrella-shaped net 1 is fixedly connected with a first plugging end head 4, and the middle part of the outer side of the second umbrella-shaped net 3 is fixedly connected with a second plugging end head 5; a connecting rod 6 is arranged in the inner cavity of the first umbrella-shaped net 1, one end of the connecting rod 6 is rotatably connected with the first plugging end 4, the other end of the connecting rod 6 is detachably connected with a pushing rod 7, the connecting rod 6 and the pushing rod 7 have the same diameter, and the tail end of the pushing rod 7 sequentially penetrates through the choke tube 2 and the second plugging end 5; a connecting pipe 8 is sleeved outside the push rod 7, an inner thread is formed in the inner wall of one end of the connecting pipe 8, an outer thread is formed in the outer wall of the second plugging end 5, and the connecting pipe 8 is in threaded connection with the second plugging end 5; one end fixedly connected with locating part that second shutoff end 5 kept away from second umbelliform net 3, the one end that connecting rod 6 kept away from first shutoff end 4 has seted up constant head tank 9, locating part and constant head tank 9 looks adaptation.
Further, in order to guarantee that the shapes of the first umbrella-shaped net 1 and the second umbrella-shaped net 3 cannot change, the limiting part comprises elastic rods 10 symmetrically fixed on the second plugging end 5, limiting balls 11 are fixedly connected to the tail ends of the elastic rods 10, the positioning grooves 9 are symmetrically arranged on the connecting rod 6, and the limiting balls 11 are matched with the positioning grooves 9. The constant head tank 9 is deepened gradually by first shutoff end 4 to 5 directions of second shutoff end and is widened, and the cell wall that constant head tank 9 is close to push rod 7 one end is the sphere to avoid spacing ball 11 to take place the dislocation and the condition of roll-off after entering into constant head tank 9, guarantee spacing ball 11 and connecting rod 6's connection effect.
Furthermore, in order to facilitate the plugging device to pass through the heart defect part, the diameter of the first umbrella-shaped net 1 is smaller than that of the second umbrella-shaped net 3, and the inner sides of the first umbrella-shaped net 1 and the second umbrella-shaped net 3 are both provided with wave grooves.
Further, for facilitating the installation and the disassembly of the push rod 7 and the connecting rod 6, a stud 12 is fixedly connected to one end of the connecting rod 6 close to the push rod 7, a thread groove 13 is formed in one end of the push rod 7 close to the connecting rod 6, and the connecting rod 6 and the push rod 7 are in thread fit through the stud 12 and the thread groove 13.
Further, for guaranteeing the choked flow effect of choked flow pipe 2, choked flow pipe 2 is the elastic tube, choked flow pipe 2 both ends all with push rod 7 butt, is provided with supporting member in the choked flow pipe 2, and supporting member establishes two go-between 14 on push rod 7 including the cover, and go-between 14 is fixed on 2 inner walls of choked flow pipe, is provided with a plurality of arc elastic rod 15 between two go-between 14, 15 both ends of arc elastic rod respectively with two go-between 14 fixed connection.
Further, when the plugging device is taken out, in order to facilitate the connection between the connecting pipe 8 and the second plugging end 5 and the connection between the pushing rod 7 and the connecting rod 6, a plurality of guide protrusions 16 are fixedly connected to the inner wall of one end, close to the second plugging end 5, of the connecting pipe 8, the guide protrusions 16 are arranged at equal intervals along the circumferential direction, and the guide protrusions 16 are in contact fit with the pushing rod 7; a conveying sheath pipe 17 is sleeved outside the connecting pipe 8, and the first umbrella-shaped net 1, the choke pipe 2 and the second umbrella-shaped net 3 are all arranged in the conveying sheath pipe 17; one end of the connecting pipe 8 close to the second plugging end 5 is fixedly connected with a bell mouth 18, and the bell mouth 18 is in contact fit with the inner wall of the conveying sheath pipe 17.
When the recyclable occluder for treating congenital heart disease is not used, the first umbrella-shaped net 1, the choke tube 2, the second umbrella-shaped net 3, the connecting tube 8 and the push rod 7 are all arranged in the conveying sheath tube 17, and the push rod 7 and the connecting rod 6 are in a connected state. When the plugging device is used, after the plugging device is sent to a heart defect part through an instrument, the plugging device is pushed to a lesion position of a patient from the conveying sheath 17 by the pushing rod 7, at the moment, the plugging device is released from the conveying sheath 17, the flow blocking pipe 2 is positioned in a through hole of the lesion position of the patient, the pushing rod 7 with a certain distance is pulled outwards, the first umbrella-shaped net 1 is made of nickel-titanium alloy memory wire, the first umbrella-shaped net 1 can be automatically unfolded after being released and attached to the lesion position for anchoring, meanwhile, the two connecting rings 14 in the flow blocking pipe 2 are close to each other under the action of elastic force of the arc-shaped elastic rod 15, the diameter of the flow blocking pipe 2 is enlarged under the action of the arc-shaped elastic rod 15, and the through hole of the lesion position of the patient is plugged by the flow blocking pipe 2; after first umbelliform net 1 accomplishes the anchoring, release second umbelliform net 3 from carrying sheath pipe 17, outwards take out certain distance's push rod 7 once more, and second umbelliform net 3 also is formed by nickel titanium alloy memory silk preparation, consequently second umbelliform net 3 also can expand by oneself, and attached anchoring in pathological change position, choke tube 2 and connecting rod 6 butt this moment, because choke tube 2 is the elastic tube, connecting rod 6 is the same with push rod 7's diameter, consequently, choke tube 2's both ends also are the state of butt with connecting rod 6, guarantee the leakproofness between choke tube 2 and the connecting rod 6. After fixing the plugging device, keep 8 positions of connecting pipe unchangeable, through 7 pulling connecting rods 6 of propelling movement pole, make spacing ball 11 on the second shutoff end 5 enter into the constant head tank 9 on the connecting rod 6, utilize connecting rod 6 further to carry on spacingly first umbelliform net 1 and second umbelliform net 3, again this in-process, can compress first umbelliform net 1 and second umbelliform net 3, further guarantee first umbelliform net 1 and second umbelliform net 3 when material self stress changes, still can guarantee that the shape of first umbelliform net 1 and second umbelliform net 3 can not change, and attached pathological change position, guarantee the shutoff effect to patient pathological change position through-hole, accomplish the locking. Then the pushing rod 7 is screwed to enable the stud 12 of the connecting rod 6 to be separated from the thread groove 13 of the pushing rod 7, the connecting pipe 8 is screwed to enable the connecting pipe 8 to be separated from the second plugging end 5, therefore, the pushing rod 7 and the connecting pipe 8 are separated from the plugging device, and then the conveying sheath 17 and the connecting pipe 8 are taken out together.
When the occluder is not installed and can not achieve good occlusion effect or is deformed or misplaced after long-time use, the occluder needs to be taken out from the lesion position of a patient, when the occluder is taken out, the conveying sheath 17, the connecting pipe 8 and the push rod 7 are conveyed to the occluder position together by an instrument, then the connecting pipe 8 is pushed out from the conveying sheath 17, the connecting rod 6 of the occluder is conveniently positioned by using the bell mouth 18 at the end part of the connecting rod 6, after the bell mouth 18 on the connecting pipe 8 is sleeved on the connecting rod 6, the position of the connecting pipe 8 is kept unchanged, the push rod 7 is pushed to the bell mouth 18 of the connecting pipe 8, the push rod 7 is positioned by using the guide bulge 16 in the connecting pipe 8, the thread groove 13 on the push rod 7 is conveniently connected with the stud 12 on the connecting rod 6, when the connection is carried out, the connecting rod 6 can not rotate under the action of the limiting ball 11, after the connecting rod 6 is connected with the pushing rod 7, the connecting pipe 8 is connected with the second plugging end 5, then the position of the connecting pipe 8 is kept unchanged, the pushing rod 7 is pulled outwards to separate the limiting ball 11 on the second plugging end 5 from the positioning groove 9 on the connecting rod 6, then the pushing rod 7 is screwed to enable the limiting ball 11 to be dislocated with the positioning groove 9, then the pushing rod 7 is pushed towards the plugging device, the first umbrella-shaped net 1 and the second umbrella-shaped net 3 are contracted by utilizing the pushing rod 7 until the plugging device is recovered to the state before use, then the relative positions of the pushing rod 7 and the connecting pipe 8 are kept unchanged, the plugging device is taken out from the diseased part by utilizing the connecting pipe 8 and is pulled into the conveying sheath pipe 17, and then the plugging device can be recovered.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. A recoverable plugging device for treating congenital heart disease comprises a first umbrella-shaped net (1), a choke tube (2) and a second umbrella-shaped net (3) which are sequentially connected, and is characterized in that a first plugging end head (4) is fixedly connected to the middle of the outer side of the first umbrella-shaped net (1), and a second plugging end head (5) is fixedly connected to the middle of the outer side of the second umbrella-shaped net (3); a connecting rod (6) is arranged in an inner cavity of the first umbrella-shaped net (1), one end of the connecting rod (6) is rotatably connected with the first plugging end (4), the other end of the connecting rod (6) is detachably connected with a pushing rod (7), the diameter of the connecting rod (6) is the same as that of the pushing rod (7), and the tail end of the pushing rod (7) sequentially penetrates through the choke tube (2) and the second plugging end (5); a connecting pipe (8) is sleeved on the outer side of the pushing rod (7), and one end of the connecting pipe (8) is detachably connected with the second plugging end (5); one end fixedly connected with locating part that second shutoff end (5) kept away from second umbelliform net (3), constant head tank (9) have been seted up to the one end that first shutoff end (4) were kept away from in connecting rod (6), the locating part with constant head tank (9) looks adaptation.
2. The retrievable occluder for treating congenital heart diseases according to claim 1, wherein said retaining means comprises a resilient rod (10) symmetrically fixed to said second occlusion tip (5), a retaining ball (11) is fixedly connected to the end of said resilient rod (10), said positioning grooves (9) are symmetrically arranged on said connecting rod (6), and said retaining ball (11) is adapted to said positioning grooves (9).
3. Retrievable occluder for the treatment of congenital heart diseases according to claim 1, characterised in that the diameter of the first umbrella net (1) is smaller than the diameter of the second umbrella net (3), and that the inside of both the first umbrella net (1) and the second umbrella net (3) is provided with wave grooves.
4. The retrievable occluder for treating congenital heart disease according to claim 1, wherein a stud (12) is fixedly connected to one end of the connecting rod (6) near the push rod (7), a threaded groove (13) is formed in one end of the push rod (7) near the connecting rod (6), and the connecting rod (6) and the push rod (7) are in threaded fit through the stud (12) and the threaded groove (13).
5. The recyclable occluder for treating congenital heart disease according to claim 1, wherein the flow blocking tube (2) is an elastic tube, both ends of the flow blocking tube (2) are abutted against the pushing rod (7), a support member is arranged in the flow blocking tube (2), the support member comprises two connection rings (14) sleeved on the pushing rod (7), the connection rings (14) are fixed on the inner wall of the flow blocking tube (2), a plurality of arc-shaped elastic rods (15) are arranged between the two connection rings (14), and both ends of each arc-shaped elastic rod (15) are respectively fixedly connected with the two connection rings (14).
6. Recoverable occluder for treating congenital heart diseases according to claim 1, wherein a plurality of guide protrusions (16) are fixedly connected to the inner wall of the end of the connecting tube (8) close to the second occluding tip (5), wherein said plurality of guide protrusions (16) are arranged at equal intervals in the circumferential direction, and said guide protrusions (16) are in contact fit with the push rod (7).
7. Recoverable occluder for the treatment of congenital heart diseases according to claim 6, wherein the connecting tube (8) is externally sheathed with a delivery sheath (17), the first umbrella-shaped mesh (1), the blocking tube (2) and the second umbrella-shaped mesh (3) being arranged within the delivery sheath (17).
8. Recoverable occluder for the treatment of congenital heart diseases according to claim 7, wherein a flare (18) is fixedly connected to the end of the connecting tube (8) close to the second occlusion tip (5), said flare (18) engaging the inner wall of the delivery sheath (17).
9. The retrievable occluder for treating congenital heart diseases according to claim 1, wherein said first umbrella-shaped net (1) and said second umbrella-shaped net (3) are made of nitinol memory wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111373747.8A CN114041835B (en) | 2021-11-19 | 2021-11-19 | Recyclable plugging device for treating congenital heart disease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111373747.8A CN114041835B (en) | 2021-11-19 | 2021-11-19 | Recyclable plugging device for treating congenital heart disease |
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| Publication Number | Publication Date |
|---|---|
| CN114041835A true CN114041835A (en) | 2022-02-15 |
| CN114041835B CN114041835B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111373747.8A Active CN114041835B (en) | 2021-11-19 | 2021-11-19 | Recyclable plugging device for treating congenital heart disease |
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| US20100069930A1 (en) * | 2008-09-16 | 2010-03-18 | VentralFix, Inc. | Method and apparatus for minimally invasive delivery, tensioned deployment and fixation of secondary material prosthetic devices in patient body tissue, including hernia repair within the patient's herniation site |
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| CN109247959A (en) * | 2017-07-13 | 2019-01-22 | 先健科技(深圳)有限公司 | Plugging device driving means and transportation system |
| CN111093528A (en) * | 2017-08-10 | 2020-05-01 | 圣犹达医疗用品心脏病学部门有限公司 | Collapsible medical device suitable for atrial sealing and septum access |
| CN111803167A (en) * | 2019-04-11 | 2020-10-23 | 杭州唯强医疗科技有限公司 | Occluder, occluder locking system and locking method |
| CN213910334U (en) * | 2020-12-02 | 2021-08-10 | 河北省胸科医院 | Occluder conveying device for cardiac surgery |
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