CN113413243A

CN113413243A - Can lock not have biological atrium diverging device of riveting

Info

Publication number: CN113413243A
Application number: CN202110690868.9A
Authority: CN
Inventors: 王卿馨; 王云兵; 胡金鹏; 赵一甲; 郭高阳; 许贤春; 陈娟; 潘湘斌
Original assignee: Shanghai Shape Memory Alloy Material Co Ltd
Current assignee: Shanghai Shape Memory Alloy Material Co Ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-09-21

Abstract

The invention relates to a lockable rivet-free biological atrium shunting device, and belongs to the technical field of medical instruments. Comprises an upper disc surface, a waist part, a lower disc surface, a shunting hole and a locking structure; a waist part used for connecting the upper disc surface and the lower disc surface is arranged between the upper disc surface and the lower disc surface, a shunting hole is arranged in the waist part, two ends of the shunting hole are respectively opened on the disc surfaces of the upper disc surface and the lower disc surface, and a through hole is formed between the openings at the two ends; a locking structure is arranged between the lower disk surface and the upper disk surface at the outer side of the waist. The atrium shunting device provided by the invention is made of biodegradable materials, adopts a rivetless design, is provided with a lockable form and can be developed; the product of the invention can be locked, and can firmly fix the shunt at the defect position, thereby greatly improving the stability of the shunt after being implanted; can be used for treating heart failure.

Description

Can lock not have biological atrium diverging device of riveting

Technical Field

The invention relates to a lockable rivet-free biological atrium shunting device, and belongs to the technical field of medical instruments.

Background

Heart failure (Heart failure) is the ultimate result of various cardiovascular events and the cumulative effect of various cardiac abnormalities, ultimately leading to decreased cardiac pumping. In Heart failure patients, Heart failure with preserved ejection fraction (HIPEF, LVEP) is a common type of Heart failure, accounting for about 50% of the cases of Heart failure, commonly characterized by elevated Left Atrial Pressure (LAP), causing pulmonary hypertension (especially while exercising), leading to pulmonary congestion and dyspnea. In addition, heart failure with decreased ejection fraction (HFrEF) may also exhibit elevated LAP. Existing treatments for heart failure drugs do not inhibit the progression of heart failure. The medical practice shows and the computer simulation result researches show that puncturing a hole at the interatrial interval position can effectively reduce the high pressure of the left atrium of HFpEF and HFrEF patients, thereby reducing the pulmonary artery pressure and the Pulmonary Capillary Wedge Pressure (PCWP), reducing the pulmonary complications, relieving the dyspnea and fatigue of the patients and further relieving the heart failure.

There are related studies to treat heart failure by implanting atrial shunt devices. The atrial shunt device is mostly made of metal, which may cause certain damage to heart tissue, and once the metal implant device is implanted, the metal implant device is permanent, which may cause various complications in the follow-up process and block the atrial septal passage, thereby failing to perform other related interventional treatments. The novel biodegradable material can be metabolized and absorbed by the human body after being implanted for a period of time and finally disappears, so that various adverse effects possibly caused by a permanent implantation instrument are avoided. Degradable atrial shunts are a better approach to treating heart failure as an implantable device. The mechanical property of the degradable atrial shunt is slightly worse than that of metal, besides, the atrial septal tissue of some heart failure patients is uneven, some patients need to have larger defects or the stability of the implantation instrument is influenced due to various reasons, and at the moment, the shunt which is more stable is needed to meet the requirement. Accordingly, there is a need in the art for a more robust shunt that meets the needs of the patient.

Disclosure of Invention

The invention aims to solve the technical problem of how to overcome the defects in the prior art and provide a more stable atrial shunt.

In order to solve the problems, the invention adopts the technical scheme that a lockable rivetless biological atrial shunt device is provided; comprises an upper disc surface, a waist part, a lower disc surface, a shunting hole and a locking structure; a waist part used for connecting the upper disc surface and the lower disc surface is arranged between the upper disc surface and the lower disc surface, a shunting hole is arranged in the waist part, two ends of the shunting hole are respectively opened on the disc surfaces of the upper disc surface and the lower disc surface, and a through hole is formed between the openings at the two ends; a locking structure is arranged between the lower disk surface and the upper disk surface at the outer side of the waist.

Preferably, the locking structure comprises a locking pipe, a locking hole and a locking chuck; a hollow locking pipe facing the upper disc surface is arranged on the lower disc surface, and a deformable locking chuck is arranged at one end of the locking pipe close to the upper disc surface; and a locking hole for locking the locking chuck is arranged on the upper disc surface corresponding to the locking chuck.

Preferably, the locking structure is provided with a developing part.

Preferably, the developing part is provided with a medical developing coating or a developing material processed by blending with a standard developing solvent.

Preferably, the waist portion is provided with an anti-coagulant coating.

Preferably, the atrium shunting device is made of degradable materials, and the materials comprise degradable high polymer poly (p-dioxanone) PDO, polylactic acid (PLA), Poly (PLLA), Poly (PDLLA), poly (lactic-co-glycolic acid), Poly (PGA), Poly (PCL), Poly (PHB), poly (vinyl acetate) (PVA), natural degradable high polymer silk fibroin, collagen fibers and/or chitosan.

Preferably, the atrial shunt device is woven from degradable filaments.

The invention provides a conveying device of a lockable rivet-free biological atrium shunting device, which comprises a pull ring, a locking switch, a handle, an inner sheath tube, a connecting key, a mandrel and a functional head, wherein the pull ring is connected with the locking switch; an inner sheath tube is arranged on the periphery of the mandrel, and a pull ring is arranged at one end of the mandrel close to an operator; the other end is provided with a connecting key for connecting with the functional head; a handle is arranged adjacent to the pull ring, and a locking switch for avoiding misoperation is arranged on the handle; the functional head comprises a pre-assembly head, a puncture needle head and a locking rod head.

Preferably, the pre-assembly head comprises a hanging head for hanging the lockable rivetless biological atrial shunt device; the puncture needle head is provided with a puncture needle for puncturing the locking point; and a locking rod for penetrating a locking pipe and guiding a locking chuck to penetrate a locking hole is arranged in the locking rod head.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention provides a lockable rivetless biological atrial shunt device which can be used for treating heart failure.

2. The atrium shunting device provided by the invention is biodegradable: the biological implantation type material is a new way for treating cardiovascular diseases in recent years, has good biocompatibility, can be metabolized by a human body, does not leave traces, and can reduce adverse effects of patients with heart failure after treatment. The invention selects biodegradable materials meeting the medical appliance standard, and the selectable materials comprise: synthesizing degradable high molecular poly (p-dioxanone) PDO, polylactic acid PLA, PLLA, PDLLA, PLGA, PGA, PCL, PHB, PVA series and the like; the degradable materials are made into wires to weave the biodegradable atrial shunt, and one or more biodegradable materials are selected to be made into a locking device to lock, so that all structures are ensured to be degradable materials.

3. The invention is designed without rivet: the atrial shunt disclosed by the invention adopts a rivetless design, and has a plurality of advantages, the previous various related interventional shunts or occluders have a rivet, the protruding rivet can influence the endothelialization of tissues, the healing of a treatment part is not facilitated, the recovery process is delayed, and the later-period burden time of a patient is longer; inflammation, hyperplasia and even thrombus may appear at the rivet head part, and certain long-term hidden danger exists. The product in the rivetless design has no rivet head, is more beneficial to the climbing of human tissue endothelium, can be quickly endothelialized at a treatment part, can form a layer of film to cover the atrial shunt after the holes at the defect part are endothelialized, has no blood and tissue exposure on the defect surface after the endothelium, is more stable, and has no tissue to axially grow towards the holes. The recovery time of the patient is greatly shortened, the later burden of the patient is reduced, and the long-term risk is reduced.

4. The invention is in a lockable form: the product of the invention can be locked, and can firmly fix the shunt at the defect position, thereby greatly improving the stability of the shunt after being implanted. The risk of displacement, falling and the like possibly caused by various reasons is avoided, and the safety is higher than that of the prior interventional products. To achieve this function, more designs have been made on the conveyor to complement the locking function. The locking design is a mode of adding buckles into the holes, the holes are smaller and the buckles are larger, but the buckles can deform, and through the smaller through holes, the original shapes of the holes are restored, so that a buckle locking state is formed.

5. The product of the invention can be developed: because the biodegradable material can not be developed (for example, can not be developed under DSA), the surface of the material can be treated, and a medical developing coating layer, such as a metal polymer, can be added, or can be mixed with a standard developable solvent (iodine-containing compound) to be processed into developing materials in various forms, such as wires, films, surfaces, rods and the like. The biodegradable atrial shunt can be seen in the operation process, the locking part is better positioned, the operation difficulty is greatly reduced, the operation of doctors is more convenient, and the convenience and the safety factor are increased.

Drawings

FIG. 1 is a schematic diagram of a delivery device for a lockable rivetless atrial shunt device according to the present invention.

FIG. 2 is a schematic view of a pre-assembled head structure of the delivery device of the present invention.

Fig. 3 is a schematic view of the puncture needle structure of the delivery device of the present invention.

Fig. 4 is a schematic view of a locking lever head structure of the conveying device of the present invention.

FIG. 5 is a schematic structural view of a lockable rivetless biological atrial shunt device of the present invention.

FIG. 6 is a schematic structural view of a lockable rivetless biological atrial shunt device according to the present invention.

Reference numerals: 1. a pull ring; 2. a locking switch; 3. a handle; 4. an inner sheath tube; 5. a connecting bond; 6. a mandrel; 7. pre-assembling a head; 8. hanging a head; 9. a connector; 10. puncturing needle; 11. a locking lever; 12. the disc surface is arranged; 13. a waist part; 14. a lower disc surface; 15. a shunt hole; 16. a locking tube; 17. a locking ball; 18. a locking hole; 19. mushroom heads; 20. and (5) hanging feet.

Detailed Description

In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:

1-6, a lockable, rivetless, biological atrial shunt device is provided for the present invention; comprises an upper disc surface 12, a waist 13, a lower disc surface 14, a shunting hole 15 and a locking structure; a waist part 13 for connecting the upper disc surface and the lower disc surface is arranged between the upper disc surface 12 and the lower disc surface 14, a shunting hole 15 is arranged in the waist part 13, two ends of the shunting hole 15 are respectively opened on the disc surfaces of the upper disc surface 12 and the lower disc surface 14, and a through hole is formed between the openings at the two ends; a locking structure is arranged between the lower disc surface 14 and the upper disc surface 12 at the outer side of the waist part 13. The locking structure comprises a locking pipe 16, a locking hole 18 and a locking chuck (locking ball/mushroom head); a hollow locking pipe 16 facing the upper disc surface 12 is arranged on the lower disc surface 14, and a deformable locking chuck is arranged at one end of the locking pipe 16 close to the upper disc surface 12; the upper disc surface 12 corresponding to the locking chuck is provided with a locking hole 18 for locking the locking chuck. The locking structure is provided with a developing part. The developing part is provided with a medical developing coating or a developing material which is processed by blending with a developing solvent meeting the standard. The waist 13 is provided with an anticoagulant coating. The atrium shunting device is made of degradable materials, and the materials comprise degradable high polymer poly (p-dioxanone) PDO, polylactic acid PLA, PLLA, PDLLA, PLGA, PGA, PCL, PHB, PVA, natural degradable high polymer silk fibroin, collagen fiber and/or chitosan. The atrium shunting device is woven by degradable silk materials.

The invention provides a conveying device of a lockable rivet-free biological atrium shunting device, which comprises a pull ring 1, a locking switch 2, a handle 3, an inner sheath tube 4, a connecting key 5, a mandrel 6 and a functional head, wherein the pull ring is connected with the pull ring through a connecting rod; an inner sheath tube 4 is arranged on the periphery of the mandrel 6, and a pull ring 1 is arranged at one end of the mandrel 6 close to an operator; the other end is provided with a connecting key 5 for connecting with the functional head; a handle 3 is arranged adjacent to the pull ring 1, and a locking switch 2 for avoiding misoperation is arranged on the handle 3; the functional head comprises a pre-assembly head 7, a puncture needle head and a locking rod head. The pre-assembly head 7 comprises a hanging head 8 for hanging the lockable rivetless biological atrial shunt device; the puncture needle head is provided with a puncture needle 10 for puncturing the locking point; the locking rod head is provided with a locking rod 11 for penetrating a locking pipe and guiding a locking chuck to penetrate a locking hole.

Examples

All there is the locking design shunt embodiment, and the locking design is the mode that the hole adds the knot, and the hole is less detained great, but detain and to warp, detain through diminishing through hole, resume former shape behind the via hole, just formed buckle locking state. The locking process requires a conveyor and a special functional head to achieve.

1. The conveying device capable of locking the rivetless biological atrial shunt comprises:

the device is used for delivering an atrial shunt into a human body, and comprises the following main components: the pull ring 1, the locking switch 2, the handle 3, the inner sheath tube 4, the connecting key 5 and the mandrel 6. Wherein pull ring 1 can push away and draw control dabber 6 and advance and retreat, and locking switch 2 plays the guard action, can be used for locking and avoids the maloperation. The handle 3 is used for holding the conveying device for operation. Interior sheath pipe 4 is used for interveneeing the transport, and connecting key 5 is used for connecting the functional head, and dabber 6 links to each other with pull ring 1, can remote control functional head. The device needs to be matched with other intervention devices such as an outer sheath tube and the like for operation, and the inner sheath tube 4 can be arranged in the outer sheath tube.

1.1 preassembly head 7:

the rivetless design has many benefits to the patient, reducing thrombosis and promoting endothelialization, etc., but does not grip the shunt well, so the present invention designs use the pre-assembly head 7 to grip and pre-assemble the rivetless shunt.

The pre-assembly head 7 is used for pre-assembling the shunt, and the main components comprise the pre-assembly head 7 and a hanging head 8. The preassembly head 7 has a total of 4 hanging heads 8 evenly distributed at 90 degrees for one circle for hanging the atrial shunt, and preassembly is carried out by hanging corresponding grids or hanging feet 20. The device may be used to pre-load an atrial shunt into a pre-loaded tube. The pre-assembled head 7 may be connected to the connection key 5 in use.

1.2 puncture needle

The puncture needle 10 is used for puncturing the locking point, and the main components comprise a connector 9 and the puncture needle 10. In use, the puncture needle 10 reaches a predetermined developing site to perform puncture.

1.3 locking club head

The locking rod 11 is used for pushing the locking part, the locking part of the auxiliary flow divider is locked, and the main components comprise the connector 9 and the locking rod 11.

2. Lockable rivet-free biological atrium shunt

All parts of the lockable rivet-free biological atrial shunt are made of degradable materials and are manufactured in a weaving, shaping and melting mode, and the shape of the locking part is manufactured through shaping of a corresponding die. The biodegradable material is added into a medical developing coating, for example, a developing material in various forms such as a wire, a film, a surface, a rod and the like is processed by blending a metal polymer or a developing solvent (iodine-containing compound) meeting the standard so as to develop the product, and a developing key point is arranged at the locking part.

2.1 spherical locking shunt

The invention relates to a spherical locking shunt, which is provided with an upper disk surface and a lower disk surface and is woven by degradable wires. The device comprises an upper disc surface 12, a waist 13, a lower disc surface 14, a shunting hole 15, a locking pipe 16, a locking ball 17 and a locking hole 18.

The upper and lower plate surfaces of the device have the same size and are woven and processed. In order to better play a shunting role, the waist part 13 of the tray body is coated with an anticoagulation coating to prevent closing and prolong the service life, and the tray surface parts of other tray bodies are not added with the anticoagulation coating, so that the tray surface can realize endothelialization and tissue integration more quickly. The design is a rivetless design, is more beneficial to tissue climbing and attaching after being implanted, and is not easy to have thrombus. And has a locking portion provided with a developing point.

In the device, the locking pipe 16 and the locking ball 17 (the ball is a buckle in the embodiment) are both elastic, the locking ball 17 is hollow and is communicated with the locking pipe 16 (hollow), the diameter of the locking hole 18 is smaller than that of the locking ball 17, the locking ball 17 is deformed into a strip shape when passing through the hole, and then is restored into a spherical shape through the locking hole 18, so that the locking requirement is met.

When the atrium shunt is used, the atrium shunt is loaded by the pre-loading head 7, then the atrium shunt is implanted to a defect position, the upper disk surface 12 of the atrium shunt is released, the lower disk surface 14 of the atrium shunt and the locking pipe 16 are in a folded state, then the handle 3 is held by hand to push the pull ring 1 forwards, slow and slow release is carried out, the lower disk surface 14 is put down, the atrium shunt is completely released (the locking pipe 16 is in a folded state), and the delivery device is withdrawn; the preassembly head 7 is taken down from the connecting key 5, the puncture needle 10 is installed, the preassembly head is conveyed to the defect position through the outer sheath, two holes are punctured at the two sides of the defect along the corresponding positions of the locking tube 16 and the developing point, and then the conveying device is withdrawn; taking down the puncture needle 10, installing the locking rod 11, conveying the puncture needle to the defect position through the sheath tube, inserting the locking rod 11 into the locking tube 16, driving the locking tube 16 and the locking ball 17 to pass through the defect, at the moment, under the extrusion of tissues, the locking ball 17 is deformed into a strip shape and can penetrate through the locking hole 18 of the upper disc surface 12 of the shunt, then, the shape is recovered to be spherical, and the step is repeated to lock the other side. At this point, the locking step is complete.

The invention can firmly fix the shunt at the defect position, thereby greatly improving the stability of the shunt.

2.2 Mushroom-type locking shunt

The invention relates to a mushroom-shaped locking shunt, which is provided with an upper disk surface and a lower disk surface and is formed by processing and shaping degradable materials, wherein the shunt is solid and non-net. The novel mushroom plate comprises an upper plate surface 12, a waist 13, a lower plate surface 14, a shunting hole 15, a locking pipe 16, a locking hole 18, a mushroom head 19 and a hanging pin 20.

In order to better play a shunting role, the waist part 13 of the tray body is coated with an anticoagulation coating to prevent closing and prolong the service life, and the tray surface parts of other tray bodies are not added with the anticoagulation coating, so that the tray surface can realize endothelialization and tissue integration more quickly. The design is a rivetless design, is more beneficial to tissue climbing and attaching after being implanted, and is not easy to have thrombus. And has a locking portion provided with a developing point.

The locking pipe 16 and the mushroom head 19 (in this embodiment, the mushroom head is a buckle) both have elasticity, the mushroom head 19 is connected with the locking pipe 16 (hollow), the diameter of the locking hole 18 is smaller than that of the mushroom head 19, the mushroom head 19 is deformed into a long strip shape (like a tightened umbrella) when passing through the hole, and the mushroom shape is restored through the locking hole 18 to meet the locking requirement.

When the atrium shunt is used, the atrium shunt is loaded by the pre-loading head 7, then the atrium shunt is implanted to a defect position, the upper disk surface 12 of the atrium shunt is released, the lower disk surface 14 of the atrium shunt and the locking pipe 16 are in a folded state, then the handle 3 is held by hand to push the pull ring 1 forwards, slow and slow release is carried out, the lower disk surface 14 is put down, the atrium shunt is completely released (the locking pipe 16 is in a folded state), and the delivery device is withdrawn; the preassembly head 7 is taken down from the connecting key 5, the puncture needle 10 is installed, the preassembly head is conveyed to the defect position through the outer sheath, two holes are punctured at the two sides of the defect along the corresponding positions of the locking tube 16 and the developing point, and then the conveying device is withdrawn; the puncture needle 10 is taken down, the locking rod 11 is installed, the puncture needle is conveyed to the defect position through the sheath tube, the locking rod 11 is inserted into the locking tube 16, the locking tube 16 and the mushroom head 19 are driven to pass through the defect, at the moment, under the extrusion of tissues, the mushroom head 19 is deformed into a long strip shape (like a tightened umbrella), penetrates through the locking hole 18 of the upper disk surface 12 of the shunt, then, the mushroom shape is recovered, the step is repeated, and the other side is locked. At this point, the locking step is complete.

Different from a spherical atrium shunt, the shape of the design is a smooth surface instead of a grid, the shape is more flexible to manufacture, and the waist 13 of the shunt is more difficult to leak than the waist 13 of a grid woven shunt, so that the defect part is less easy to close.

The device can be selected according to clinical conditions and physician needs.

The invention provides a lockable rivet-free biological atrium shunting device which is provided with a locking design, wherein the locking design is a mode of adding buckles into holes, the holes are small, the buckles are large, but can be deformed, and the original shape is restored after the holes are formed by reducing the holes, so that a buckle locking state is formed. The locking process requires a conveyor and a special functional head to achieve.

The lockable rivetless biological atrial shunt provided by the invention can be developed, and because the biodegradable material cannot be developed (for example, the biodegradable material cannot be developed under DSA), the surface of the material can be treated, and a medical developing coating, such as a metal polymer, can be added, or can be mixed with a standard developable solvent (iodine-containing compound) to be processed into developing materials in various forms, such as wires, films, surfaces, rods and the like. The biodegradable atrial shunt can be seen in the operation process, the locking part is better positioned, and the operation difficulty is greatly reduced.

The invention provides a conveying device capable of locking a rivetless biological atrium shunt, which comprises a pull ring 1, a locking switch 2, a handle 3, an inner sheath tube 4, a connecting key 5 and a mandrel 6; the pull ring 1 can push and pull the control mandrel 6 to move forward and backward, and the locking switch 2 plays a role in protection and can be used for locking to avoid misoperation; the handle 3 is used for holding the conveying device for operation; interior sheath pipe 4 is used for interveneeing the transport, and connecting key 5 is used for connecting the functional head, and dabber 6 links to each other with pull ring 1, can remote control functional head.

The invention provides a lockable rivet-free biological atrium shunting device which is made of degradable materials, wherein the selectable materials comprise: synthesizing degradable high molecular poly (p-dioxanone) PDO, polylactic acid PLA, PLLA, PDLLA, PLGA, PGA, PCL, PHB, PVA series and the like; natural degradable high molecular silk fibroin, collagen fiber, chitosan, etc.

The lockable rivet-free biological atrium shunting device provided by the invention is designed without rivets, the rivet-free biological atrium shunting device is free of rivet heads in the rivet-free design, is more beneficial to climbing of human tissue endothelium, can be quickly endothelialized at a treatment part, can form a membrane to cover the atrium shunting device after holes at a defect part are endothelialized, has no blood and tissue exposed on the surface of the defect part after the endothelium, is more stable, and can prevent the tissue from axially growing in the holes. The recovery time of the patient is greatly shortened, the later burden of the patient is reduced, and the long-term risk is reduced.

The lockable rivet-free biological atrium shunting device provided by the invention is in a rivet-free design, is matched with a pre-assembly head to pre-assemble a shunt, and the pre-assembly head comprises a pre-assembly head and a hanging head; the preassembly head has 4 hanging heads at 90 degrees, are evenly distributed for a circle and are used for hanging and holding the atrial shunt, and the atrial shunt is preassembled into the preassembly tube by hanging and holding the corresponding grids or hanging feet. The main components of the device comprise a connector and a puncture needle. When the developing device is used, the puncture needle reaches the appointed developing part to puncture, and two holes are punctured at the corresponding positions of the two ends of the defect. The cooperation locking lever is used for promoting the locking position, and supplementary shunt locking position lock is dead, and the essential element includes connector and locking lever.

The lockable rivet-free biological atrium shunting device provided by the invention is designed as a spherical locking shunt, has an upper plate surface and a lower plate surface with the same size, and is woven by degradable wires. The device comprises an upper disc surface, a waist part, a lower disc surface, a shunting hole, a locking pipe, a locking ball and a locking hole. Scribble the anticoagulation coating at its waist and can prevent closed, increase of service life, and other disk body quotations parts then do not add the anticoagulation coating, can make the realization endothelialization that the quotation can be faster integrate with organizing. The design is a rivetless design, is more beneficial to tissue climbing and attaching after being implanted, is not easy to have thrombus, and the locking part is provided with a developing point.

The lockable rivet-free biological atrium shunting device provided by the invention is a mushroom-shaped locking shunt, and comprises an upper disk surface, a lower disk surface, a shunting hole, a locking pipe, a mushroom head, a locking hole and a hanging foot. The manufacturing method is that the degradable material is formed by shaping. The waist of the device is coated with anticoagulant paint; the locking method is that the elastic mushroom head is opened after passing through the locking hole to play a role in locking.

While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A lockable rivetless biologic atrial shunt device; the method is characterized in that: comprises an upper disc surface, a waist part, a lower disc surface, a shunting hole and a locking structure; a waist part used for connecting the upper disc surface and the lower disc surface is arranged between the upper disc surface and the lower disc surface, a shunting hole is arranged in the waist part, two ends of the shunting hole are respectively opened on the disc surfaces of the upper disc surface and the lower disc surface, and a through hole is formed between the openings at the two ends; a locking structure is arranged between the lower disk surface and the upper disk surface at the outer side of the waist.

2. The lockable rivetless biological atrial shunt device of claim 1; the method is characterized in that: the locking structure comprises a locking pipe, a locking hole and a locking chuck; a hollow locking pipe facing the upper disc surface is arranged on the lower disc surface, and a deformable locking chuck is arranged at one end of the locking pipe close to the upper disc surface; and a locking hole for locking the locking chuck is arranged on the upper disc surface corresponding to the locking chuck.

3. The lockable rivetless biological atrial shunt device of claim 1; the method is characterized in that: the locking structure is provided with a developing part.

4. The lockable rivetless biological atrial shunt device of claim 3, wherein: the developing part is provided with a medical developing coating or a developing material which is processed by blending with a standard developing solvent.

5. The lockable rivetless biological atrial shunt device of claim 1, wherein: the waist is provided with an anticoagulant coating.

6. The lockable rivetless biological atrial shunt device of claim 1, wherein: the atrium shunting device is made of degradable materials.

7. The lockable rivetless biological atrial shunt device of claim 6, wherein: the atrium shunting device is woven by degradable silk materials.

8. The lockable delivery device for a rivetless biological atrial shunt device according to any one of claims 1 to 7, comprising: comprises a pull ring, a locking switch, a handle, an inner sheath tube, a connecting key, a mandrel and a functional head; an inner sheath tube is arranged on the periphery of the mandrel, and a pull ring is arranged at one end of the mandrel close to an operator; the other end is provided with a connecting key for connecting with the functional head; a handle is arranged adjacent to the pull ring, and a locking switch for avoiding misoperation is arranged on the handle; the functional head comprises a pre-assembly head, a puncture needle head and a locking rod head.

9. The lockable delivery device for a rivetless biological atrial shunt device according to claim 8, wherein: the preassembly head comprises a hanging head for hanging the lockable rivetless biological atrial shunt device; the puncture needle head is provided with a puncture needle for puncturing the locking point; and a locking rod for penetrating a locking pipe and guiding a locking chuck to penetrate a locking hole is arranged in the locking rod head.