CN110680443A

CN110680443A - Heart plugging device

Info

Publication number: CN110680443A
Application number: CN201910996825.6A
Authority: CN
Inventors: 何亚军
Original assignee: No215 Hospital Of Shaanxi Nuclear Industry
Current assignee: No215 Hospital Of Shaanxi Nuclear Industry
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-01-14

Abstract

The invention belongs to the technical field of medical instruments, in particular to a heart occluder, which comprises a occluder and a fixed seat, wherein a biomembrane is fixed on the outer surface of the occluder, the fixed seat is fixed at the central position of one side of the occluder, a plurality of fixed blocks are fixed at the periphery of the outer part of the fixed seat, a plurality of support rods are arranged at one side of the occluder at the periphery of the outer part of the fixed seat, the support rods are elastically connected with the fixed blocks through springs, the support rods are rotatably connected with the occluder through rotating shafts, a connecting seat is fixed at the central position of one side of the fixed seat and comprises a connecting disk and a connecting column, the connecting disk is fixedly connected with the connecting column, the occluder after being inserted is conveniently supported and pressed and fixed between the left atrial appendage through the support rods, the fixation is stable and firm and is not easy to, the connection is stable and firm, the installation and the disassembly are convenient, the plugging effect is good, and the plugging capability is strong.

Description

Heart plugging device

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a heart occluder.

Background

Atrial fibrillation (atrial fibrillation) is the most common type of arrhythmia in clinic, the most main harm of atrial fibrillation is to cause left atrial thrombosis, after thrombus falls off, complications such as acute myocardial infarction stroke, peripheral vascular embolism and the like are induced, the disability rate and the lethality rate are increased, more than 90% of thrombus in the existing non-valvular atrial fibrillation patient comes from the left atrial appendage, so that the left atrial appendage can be closed or blocked, the thrombus formation of medical equipment can be obviously reduced, the thromboembolic complications are reduced, the part protruding forwards in the right front of the left atrium is called the left atrial appendage, the part has no obvious boundary with the atrial appendage, only the inner wall of the atrium is smooth, comb-shaped muscles on the inner wall of the atrial appendage are developed and not smooth, and in recent years, the minimally invasive left atrial appendage blockage operation is different in anatomical form of the left atrial appendage, on one hand, blood residues are easy to occur in the operation and after the operation, and the ideal blockage effect cannot; on the other hand, because the occluder is not firmly fixed and is easy to fall off, the complexity in or after the operation is increased, and how to better occlude the left auricle becomes the problem which needs to be solved urgently in the medical field nowadays.

The heart plugging device structure mainly comprises a front end plugging structure and a rear end fixing structure, and at present, the heart plugging device still has the following problems in the use process: the left auricle has different sizes and forms, and the plugging device is difficult to insert into the inner cavity of the left auricle; the better auxiliary supporting structure is lacked outside the occluder, the occluder and the left auricle are fixed only by the relative pressure applied by the left auricle muscle layer, and the occluder is not fixed firmly enough; the occluder is delivered to the left auricle opening through the medical delivery sheath, the delivery sheath is connected with the occluder through the clamping, the connection is not stable enough, and the occluder is easy to fall off in the delivery process.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a heart occluder which has the characteristics of convenience in use and stable occlusion.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a heart plugging device, including sealing up and stopping up and fixing base, the external fixation who seals up the stopper has the biomembrane, one side central point department of putting of sealing up is fixed with the fixing base, the outside of fixing base is fixed with a plurality of fixed block all around, the outside of fixing base is located one side of sealing up all around and is provided with a plurality of vaulting pole, the vaulting pole is connected through spring elasticity with the fixed block, the vaulting pole rotates through the axis of rotation with the shutoff stopper and is connected, one side central point department of putting of fixing base is fixed with the connecting seat, the connecting seat includes connection pad and spliced pole.

According to the preferred technical scheme of the heart occluder, the occluder and the biological membrane are both arc-shaped structures, the fixing seat and the connecting seat are both circular structures, one sides of the connecting disc and the connecting column are both fixed with clamping blocks, the other sides of the connecting disc and the connecting column are both fixed with rotary blocks, the inner surfaces of the clamping blocks are provided with clamping grooves, and the inner surfaces of the rotary blocks are provided with rotary grooves.

According to the preferred technical scheme of the cardiac occluder, one end of each support rod is of a square structure, the other end of each support rod is of an arc structure, the support rods are arranged in an annular array around the outside of the fixing seat, the support blocks are fixed on one side of the fixing seat and are of the arc structures, and the support rods and the support blocks are obliquely arranged.

As a preferred technical scheme of the heart plugging device, the clamping block is fixed with the rotary block, and the clamping groove is communicated with the interior of the rotary groove.

As a preferred technical scheme of the heart plugging device, one end of a spring is fixedly connected with a support rod, and the other end of the spring is fixedly connected with a fixing block.

As a preferred technical scheme of the heart plugging device, the rotating shaft is fixedly connected with the plugging plug.

Compared with the prior art, the invention has the beneficial effects that: a novel heart occluder is designed, the left auricle is occluded by the occluder, the occlusion capacity is strong, the sealing effect is good, the connection is stable, the fixation is firm, the front end of the occluder is provided with an arc-shaped occluder, the surface of the occluder is provided with a biomembrane, the central position of the tail end of the occluder is provided with a fixed seat and a connecting seat, one side of the occluder, which is positioned outside the fixed seat, is connected with a plurality of support rods through elastic connection of springs and rotation shafts, the connecting seat comprises a connecting column and a connecting disc, the occluder with an arc-shaped structure is convenient to be smoothly inserted into a cavity inside the left auricle, the operation is simple and convenient, the sealing property between the occluder and the left auricle is increased through the biomembrane, the sealing property is better, the occluder after being inserted is convenient to be supported and pressed and fixed with the left auricle through the support rods, the fixation is stable, the connection is stable and firm, and the installation and the disassembly are convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the present invention in a contracted state;

FIG. 3 is a rear view of the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 1;

FIG. 5 is an enlarged view of the structure at C in FIG. 2;

FIG. 6 is an enlarged view of the structure shown at D in FIG. 3;

FIG. 7 is a schematic structural view showing the connection section between the connecting seat and the inner part of the delivery sheath A in the present invention;

FIG. 8 is a schematic view of the pre-occlusion structure of the present invention;

FIG. 9 is a schematic structural view of a plug of the present invention;

FIG. 10 is a schematic diagram of the post-occlusion structure of the present invention;

in the figure: 1. blocking; 2. a biofilm; 3. a fixed seat; 4. a connecting seat; 5. a stay bar; 6. a connecting disc; 7. connecting columns; 8. a rotating shaft; 9. a support block; 10. a spring; 11. a fixed block; 12. a card slot; 13. rotating the groove; 14. a clamping block; 15. and (6) rotating the block.

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.

Examples

Referring to fig. 1-10, the present invention provides the following technical solutions: a heart occluder comprises an occluder 1 and a fixed seat 3, a biomembrane 2 is fixed on the outer surface of the occluder 1, the fixed seat 3 is fixed at the central position of one side of the occluder 1, a plurality of fixed blocks 11 are fixed at the periphery of the outer part of the fixed seat 3, a plurality of support rods 5 are arranged at one side of the occluder 1 at the periphery of the outer part of the fixed seat 3, the support rods 5 are elastically connected with the fixed blocks 11 through springs 10, the support rods 5 are rotatably connected with the occluder 1 through rotating shafts 8, a connecting seat 4 is fixed at the central position of one side of the fixed seat 3, the connecting seat 4 comprises a connecting disk 6 and a connecting post 7, the connecting disk 6 is fixedly connected with the connecting post 7, in the embodiment, the mark A in figures 1, 2, 3, 8, 9 and 10 is a conveying sheath A, the conveying sheath A can refer to 1015 XC medical conveying sheath A, the occluder 1 with an arc structure is convenient, simple operation is convenient, through biomembrane 2, increases the leakproofness between occluder and the left auricle, and the leakproofness is better, and it is fixed to be convenient for prop between the occluder after inserting and the left auricle through vaulting pole 5, and fixed stable firm is difficult for droing, can carry out the block and the dual fixed of closing soon to carrying sheath A through spliced pole 6 and connection pad 7, and firm in connection, ann tears open conveniently.

Specifically, the sealing plug 1 and the biological membrane 2 are both arc-shaped structures, the fixing seat 3 and the connecting seat 4 are both circular structures, one side of the connecting disc 6 and one side of the connecting column 7 are both fixed with a fixture block 14, the other side of the connecting disc 6 and the other side of the connecting column 7 are both fixed with a rotary block 15, the inner surface of the fixture block 14 is provided with a clamping groove 12, the inner surface of the rotary block 15 is provided with a rotary groove 13, in the embodiment, the sealing plug 1 is a titanium alloy hemispherical structure and is convenient to insert into a cavity inside a left auricle, the biological membrane 2 is a TPU biological membrane and can prevent blood seepage and increase the sealing performance, the fixing seat 3 is a titanium alloy circular structure and is used for elastic support of the support rod 5 and fixed connection of the connecting seat 4, the connecting seat 4 is a titanium alloy circular structure and is used for connection of the conveying sheath A and the sealing plug 1 and is convenient for, connection pad 6 is used for carrying the outside registrates of sheath A fixed, and the spliced pole 7 is used for carrying the inside wearing of sheath A to close fixedly, and connection pad 6 and spliced pole 7 all include the fixture block 14 of front end and the piece 15 that revolves of rear end, form draw-in groove 12 between fixture block 14 and the fixture block 14, revolve piece 15 and revolve and form between the piece 15 and revolve groove 13, are convenient for carry out the block to carrying sheath A and revolve the dual fixed that closes, connect stably, and ann tears open conveniently.

Specifically, the one end of vaulting pole 5 is square structure, the other end of vaulting pole 5 is the arc structure, vaulting pole 5 is the annular array range around the outside of fixing base 3, one side of fixing base 3 is fixed with bracer 9, bracer 9 is the arc structure, vaulting pole 5 all is the slope setting with bracer 9, vaulting pole 5 is titanium alloy material in this embodiment, bracer 9 is the PET material, it is comfortable to make the laminating between bracer 9 and the left auricle, vaulting pole 5 can carry out elastic rotation through spring 10 and axis of rotation 8, vaulting pole 5 receives spring 10 elastic force, and rotate through axis of rotation 8, vaulting pole 5 outwards props the pressure expansion, the shrink of left auricle muscle layer, apply certain pressure to vaulting pole 5, thereby further fix to sealing plug 1, prevent to seal plug 1 and deviate from.

Specifically, the clamping block 14 is fixed with the rotary block 15, and the clamping groove 12 is communicated with the interior of the rotary groove 13.

Specifically, spring 10's one end is fixed with vaulting pole 5 and is connected, and the spring 10 other end is fixed with fixed block 11 and is connected, and fixed block 11 is titanium alloy columnar structure in this embodiment, is connected the face with spring 10 and is planar structure, and the spring 10 straight line of being convenient for is flexible, and axis of rotation 8 is for being the alloy material with spring 10.

Specifically, the rotating shaft 8 is fixedly connected with the sealing plug 1.

The working principle and the using process of the invention are as follows: when the plugging device is used, a conveying sheath A is connected with a connecting seat 4 of the plugging device, the conveying sheath A is inserted into a clamping groove 12, the clamping groove 12 and the conveying sheath A are clamped with each other, the conveying sheath A is continuously rotated towards the interior of a rotary groove 13, the rotary groove 13 and the conveying sheath A are mutually rotated and closed, so that the conveying sheath A is doubly fixed, the plugging device is conveyed to the left auricle through the conveying sheath A along an incision, then the left auricle is plugged, as shown in figures 8, 9 and 10, a plugging plug 1 enters a cavity in the left auricle, a muscle layer of the left auricle contracts, a certain pressure is applied to the plugging plug 1, so that the plugging plug 1 is fixed, meanwhile, the plugging plug is sealed through a biological membrane 2, blood in the left auricle is prevented from flowing back to the left atrium, in the plugging plug 1 inserting process, a support rod 5 is under the elastic action of a spring 10 and rotates through a rotating shaft 8, and the support rod 5 is outwards pressed and expanded, the left auricle muscularis contracts, exerts certain pressure to vaulting pole 5 to further fixing sealing plug 1, preventing sealing plug 1 from deviating from, the back is accomplished in the shutoff, and rotating conveying sheath A, conveying sheath A is twisted out from draw-in groove 12, pulls out conveying sheath A from draw-in groove 12, and conveying sheath A dismantles the mode and does, closes earlier soon and then pulls out, and conveying sheath A mounting means does, inserts earlier and closes soon.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cardiac occluder, comprising: including sealing stopper (1) and fixing base (3), the external fixed surface that seals stopper (1) has biomembrane (2), one side central point department of putting of sealing stopper (1) is fixed with fixing base (3), the outside of fixing base (3) is fixed with a plurality of fixed block (11) all around, the outside of fixing base (3) is located one side that seals stopper (1) all around and is provided with a plurality of vaulting pole (5), vaulting pole (5) are connected through spring (10) elasticity with fixed block (11), vaulting pole (5) are connected through axis of rotation (8) rotation with sealing stopper (1), one side central point department of putting of fixing base (3) is fixed with connecting seat (4), connecting seat (4) are including connection pad (6) and spliced pole (7), connection pad (6) are connected with spliced pole (7) fixed.

2. A cardiac occluder according to claim 1, wherein: the sealing plug (1) and the biological membrane (2) are both arc-shaped structures, the fixing seat (3) and the connecting seat (4) are both circular structures, a clamping block (14) is fixed on one side of the connecting disc (6) and one side of the connecting column (7), a rotary block (15) is fixed on the other side of the connecting disc (6) and the other side of the connecting column (7), a clamping groove (12) is formed in the inner surface of the clamping block (14), and a rotary groove (13) is formed in the inner surface of the rotary block (15).

3. A cardiac occluder according to claim 1, wherein: the one end of vaulting pole (5) is square structure, and the other end of vaulting pole (5) is the arc structure, and the outside of vaulting pole (5) in fixing base (3) is annular array around arranges, and one side of fixing base (3) is fixed with vaulting piece (9), and vaulting piece (9) are the arc structure, and vaulting pole (5) all are the slope setting with vaulting piece (9).

4. A cardiac occluder according to claim 2, wherein: the clamping block (14) is fixed with the rotary block (15), and the clamping groove (12) is communicated with the interior of the rotary groove (13).

5. A cardiac occluder according to claim 1, wherein: one end of the spring (10) is fixedly connected with the support rod (5), and the other end of the spring (10) is fixedly connected with the fixed block (11).

6. A cardiac occluder according to claim 1, wherein: the rotating shaft (8) is fixedly connected with the sealing plug (1).