CN113796936A - Atrial shunt implantation device and implantation method - Google Patents
Atrial shunt implantation device and implantation method Download PDFInfo
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- CN113796936A CN113796936A CN202111248410.4A CN202111248410A CN113796936A CN 113796936 A CN113796936 A CN 113796936A CN 202111248410 A CN202111248410 A CN 202111248410A CN 113796936 A CN113796936 A CN 113796936A
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- 238000002513 implantation Methods 0.000 title claims abstract description 36
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- 238000009434 installation Methods 0.000 claims abstract description 36
- 210000002837 heart atrium Anatomy 0.000 claims abstract description 34
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- 239000011248 coating agent Substances 0.000 claims description 11
- 239000007943 implant Substances 0.000 claims description 11
- 210000004971 interatrial septum Anatomy 0.000 claims description 9
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- 239000003814 drug Substances 0.000 claims description 6
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
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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
- A61B17/34—Trocars; Puncturing needles
- A61B17/3468—Trocars; Puncturing needles for implanting or removing devices, e.g. prostheses, implants, seeds, wires
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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
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
- A61B2017/00243—Type of minimally invasive operation cardiac
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Abstract
The application relates to the technical field of medical equipment, and provides an atrium shunt implantation device and an implantation method, wherein the atrium shunt implantation device comprises: the fixed pipe is provided with an installation channel; an atrium shunt disposed outside the fixed tube; the expansion mechanism comprises a connecting rod arranged in the installation channel and an expansion piece connected with the connecting rod, and the expansion piece is arranged at one end of the fixed pipe and is positioned outside the fixed pipe; wherein, be equipped with the installation clearance between extension piece and the fixed pipe, the local installation clearance of locating of atrium shunt implantation device. Through the technical scheme of this application, can improve atrium shunt's implantation efficiency, reduce transportation apparatus number of times, practice thrift operation time, reduce the operation risk.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to an atrial shunt implantation device and an implantation method.
Background
Interatrial septum ostomy is a method of treating heart disease. The left atrium and the right atrium are communicated by establishing a channel between the interatrial septum of the patient, and when the heart contracts, blood in the left atrium can be shunted to the right atrium through the channel, so that the heart load is relieved. However, atrial septal defects manufactured by artificial puncture have the risk of secondary closure, when the atrial shunt is implanted, instruments need to be conveyed in a conveying system for many times, the problems of long time of the implantation process of the atrial shunt and complicated conveying process exist, and the operation risk is higher.
Disclosure of Invention
An object of the embodiment of the present application is to provide an atrial shunt implantation device, which is used to improve the implantation efficiency of the atrial shunt, save the operation time, and reduce the operation risk.
Embodiments of the first aspect of the present application provide an atrial shunt implantation device, comprising: the fixed pipe is provided with an installation channel; an atrium shunt disposed outside the fixed tube; expanding mechanism, including the connecting rod and with the expansion piece that the connecting rod links to each other, the connecting rod insert locate in the fixed tube and with fixed pipe swing joint, the expansion piece is located the one end of fixed pipe, just the expansion piece orientation one side of fixed pipe is equipped with the mounting groove, the one end of fixed pipe is located in the mounting groove, and with inject between the mounting groove and have the installation clearance, the atrium shunt inlays to be located in the installation clearance.
In the above implementation, the atrial shunt implantation device includes a fixation tube, an atrial shunt, and an expansion mechanism. Wherein the fixed pipe is provided with an installation channel. The connecting rod of expansion mechanism locates in the fixed tube and with fixed pipe swing joint, the expansion piece is located the one end of fixed pipe to link to each other with the connecting rod, wherein, the expansion piece is equipped with the mounting groove towards one side of fixed pipe, the one end of fixed pipe is located in the mounting groove, and with be equipped with the installation clearance that is used for fixed atrium shunt between the diapire face of mounting groove. The atrial shunt is disposed around the outer periphery of the fixation tube and is partially fixed in the installation gap defined between the expansion member and the fixation tube to prevent the detachment during delivery. Particularly, when carrying the atrium shunt, usable outside puncture apparatus carries out the puncture of room interval earlier, can use the expander to expand the puncture hole after the puncture finishes, need not to carry the expansion apparatus that is used for expanding the stoma among the operation process, continue the fixed pipe of propelling movement after the expansion finishes, carry to the room interval until the interface channel of atrium shunt, because alright realize room interval expansion function in transportation process, the number of times of transporting the apparatus among the operation process has been reduced, thereby operation time has been shortened, the risk of operation has been reduced.
In a possible realization, the inner wall surface of the fixing tube facing the end of the expansion element is provided with an internal thread, the connecting rod is provided with an external thread section, and the fixing tube is in threaded connection with the connecting rod and is adapted to fix the atrial shunt locally in the installation gap.
In the implementation process, the inner thread is arranged on the inner wall surface of one end, facing the expansion piece, of the fixing pipe, the outer thread is arranged on one end, connected with the expansion piece, of the connecting rod, when the atrium shunt is fixed, part of the atrium shunt can be arranged in the installation gap between the fixing pipe and the expansion piece, then the atrium shunt is locally pressed in the installation gap in a tightening mode of the fixing pipe and the connecting rod, the risk that the atrium shunt falls off in the conveying process is prevented, and therefore the efficiency of conveying the atrium shunt is further improved.
In a possible implementation manner, a thread adjusting section is arranged between the external thread section and one end of the fixing tube facing the expansion piece, and the thread adjusting section is used for adjusting the size of the installation gap.
In the above-mentioned realization process, when fixed pipe inserted when locating the mounting groove of extension piece, the external screw thread section of connecting rod and fixed pipe were equipped with the screw thread between towards the one end of extension piece and are adjusted the section, and the connecting pipe can be located in the installation clearance in atrium shunt part promptly, through continuing the spiral tightening in order to compress tightly the atrium shunt, perhaps between the installation of atrium shunt, adjust the installation clearance earlier to great to atrium shunt part inlays and establishes in the installation clearance.
In a possible implementation manner, a side of the expansion element facing away from the fixing tube is a circular arc surface.
In the implementation process, one side of the expansion part, which deviates from the fixed tube, is an arc surface, the arc surface can avoid scratching tissue structures such as blood vessels in the conveying process of the atrial shunt, and is convenient for expanding the stoma, so that the operation risk is further reduced. Meanwhile, the size of the stoma is matched with the size of the atrium shunt after the stoma is expanded, so that the accuracy of the stoma size is improved.
In one possible implementation manner, the method further includes: a delivery catheter sleeved outside the fixed tube and the atrial shunt for compressing the atrial shunt.
In the implementation process, the atrial shunt implantation device further comprises a delivery catheter sleeved outside the fixing tube and the atrial shunt, and the delivery catheter can tightly press the atrial shunt between the delivery catheter and the fixing tube so as to improve the safety of the atrial shunt in the delivery process.
In one possible implementation, the expansion element is provided with a guide wire hole, in which a guide wire is arranged, which is inserted in the guide wire hole and is used to guide the implantation of the atrial shunt into the interatrial septum stoma.
In the implementation process, the center of the expansion piece is provided with the wire guide hole, the wire guide is arranged in the wire guide hole and used for being inserted into the stoma after puncture, and the other end of the expansion piece is arranged in the wire guide hole, so that the expansion piece can be guided to quickly reach the stoma position in the conveying process of the atrial shunt so as to expand and implant the atrial shunt, and the implantation efficiency of the atrial shunt is further improved.
In one possible implementation, the atrium splitter comprises a left disc surface and a right disc surface connected with the left disc surface, a connecting channel is limited in the middle of the left disc surface and the right disc surface, and the fixing pipe is located in the connecting channel.
In the implementation process, the atrium shunt comprises a left disk surface and a right disk surface, a connecting channel is limited between the left disk surface and the right disk surface and is used for being arranged at the interatrial space and allowing blood to flow into the right atrium from the left atrium, the left disk surface and the right disk surface are respectively arranged on the left atrium and the right atrium and are clamped on two sides of the stoma to play a role in fixing and avoid the closure of the stoma.
In one possible implementation, the left disc surface and the right disc surface are both elastic pieces; and/or the inner wall surface of the connecting channel is coated with a smooth coating; and/or, the outer surface of the atrial shunt is coated with a drug coating for inhibiting endothelialization.
In the above-mentioned realization process, left quotation and right quotation are the elastic component, consequently can be convenient for carry the in-process with its compression deformation to carry, can release elastic potential energy after the implantation simultaneously, the reconversion is with playing the fixed clamp and making mouthful, preventing to make mouthful closed effect.
Through the internal face coating smoothness tectorial membrane at the interface channel, the smoothness tectorial membrane can be the polytetrafluoroethylene material, also can be the microporous membrane that polytetrafluoroethylene and surface fabric suppression formed, and the smoothness tectorial membrane can make the internal face of interface channel more smooth to reduce blood resistance, reduce the thrombus risk.
The outer surface of the atrial shunt is coated with a drug coating, such as rapamycin, paclitaxel and other drug coatings, so that the endothelialization of the device is inhibited, and the closing of a stoma is prevented.
In one possible implementation, the left disc surface and the right disc surface are integrally woven by at least one woven net; or the left disc surface and the right disc surface are respectively woven by at least one woven mesh and are formed by laser welding.
In a second aspect, the present application provides an atrial shunt implantation method, which is applied to the atrial shunt implantation device according to any one of the first aspect, and includes: inserting one end of the fixed pipe into the mounting groove of the expansion piece to ensure that a mounting gap is defined between the fixed pipe and the expansion piece; the atrium shunt is partially arranged in the installation gap and is tightly pressed in a mode of being in threaded connection with the fixed pipe through the connecting rod; puncturing the atrial septum of the heart by an expansion mechanism, inserting one end of a guide wire into the puncture hole, and inserting the other end of the guide wire into a guide wire hole of an expansion piece; conveying the connecting channel of the atrial shunt to the interatrial septum stoma along the guide wire, and respectively arranging the left disc surface and the right disc surface of the atrial shunt in the left atrium and the right atrium; the fixation of the fixation tube and the expansion piece to the atrial shunt is released, and the left and right disk surfaces of the atrial shunt respectively clamp the two sides of the atrial septal stoma.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic cross-sectional view of an atrial shunt implant device according to one embodiment of the present application;
FIG. 2 is a cross-sectional schematic view of an atrial shunt implant device during delivery according to an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of an atrial shunt provided in accordance with an embodiment of the present application;
FIG. 4 is a front view of an atrial shunt according to an embodiment of the present application;
FIG. 5 is a schematic flow chart of a method of implanting an atrial shunt according to an embodiment of the present application.
Icon: 1. an atrial shunt implantation device; 10. a fixed tube; 101. an internal thread; 20. an expansion mechanism; 201. a connecting rod; 2011. an external thread; 202. an expansion member; 30. an atrial shunt; 301. a left disc surface; 302. the right plate surface; 303. a connecting channel; 40. a mounting gap; 50. a guide wire; 60. a delivery catheter.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Currently, conventional ostomy procedures typically employ a puncture sheath to puncture and create a hole in the atrial septum site and a balloon to dilate the defect. Because instruments need to be conveyed for many times in the operation process so as to complete the steps of puncture, expansion and conveying in sequence, the implantation process of the atrial shunt is complicated, the implantation time is long, and the operation risk is high.
Referring to fig. 1, in a first aspect, embodiments of the present application provide an atrial shunt implantation device 1, including: a fixed pipe 10 provided with an installation passage; an atrial shunt 30 disposed outside the fixed tube 10; expanding mechanism 20, including connecting rod 201 and with the expansion piece 202 that connecting rod 201 links to each other, connecting rod 201 insert locate in the fixed pipe 10 and with fixed pipe 10 swing joint, expansion piece 202 is located the one end of fixed pipe 10, just expansion piece 202 orientation one side of fixed pipe 10 is equipped with the mounting groove, the one end of fixed pipe 10 is located in the mounting groove, and with inject between the mounting groove and have installation clearance 40, atrium shunt 30 inlays to be located in the installation clearance 40.
In the above implementation, the atrial shunt implantation device 1 includes a fixation tube 10, an atrial shunt 30, and an expansion mechanism 20. Wherein the stationary pipe 10 is provided with an installation passage. Connecting rod 201 of expansion mechanism 20 is located fixed pipe 10 and with fixed pipe 10 swing joint, and expansion piece 202 is located the one end of fixed pipe 10 to link to each other with connecting rod 201, wherein, expansion piece 202 is equipped with the mounting groove towards one side of fixed pipe 10, and the one end of fixed pipe 10 is located the mounting groove, and with the diapire face of mounting groove between be equipped with the installation clearance 40 that is used for fixed atrium shunt 30. The atrial shunt 30 is disposed around the circumference of the fixation tube 10 and is partially secured within the mounting gap 40 defined between the expansion member 202 and the fixation tube 10 to prevent dislodgement during delivery. Specifically, when carrying atrium shunt 30, usable outside puncture apparatus carries out the puncture of interatrial interval earlier, can use the expander to expand the puncture hole after the puncture finishes, need not to carry the expansion apparatus that is used for expanding the stoma among the operation process, continue propelling movement fixed pipe 10 after the expansion finishes, until atrium shunt 30's connected channel 303 carries to interatrial interval, because alright realize interatrial interval expansion function in transportation process, the number of times of transporting the apparatus among the operation process has been reduced, thereby operation time has been shortened, the risk of operation has been reduced.
In one possible implementation, the inner wall surface of the fixing tube 10 facing the end of the expansion element 202 is provided with an internal thread 101, the connecting rod 201 is provided with an external thread 2011 section, and the fixing tube 10 is in threaded connection with the connecting rod 201 and is adapted to partially fix the atrial shunt 30 in the installation gap 40.
In the implementation process, the inner wall surface of one end of the fixing tube 10 facing the expansion piece 202 is provided with the internal thread 101, and one end of the connecting rod 201 connected with the expansion piece 202 is provided with the external thread 2011, so that when the atrial shunt 30 is fixed, part of the atrial shunt 30 can be firstly arranged in the installation gap 40 between the fixing tube 10 and the expansion piece 202, and then the atrial shunt 30 is locally pressed in the installation gap 40 by screwing the fixing tube 10 and the connecting rod 201, so that the risk that the atrial shunt 30 falls off in the delivery process is prevented, and the efficiency of delivering the atrial shunt 30 is further improved.
Referring to fig. 1, in a possible implementation manner, a thread adjusting section is disposed between the external thread 2011 section and an end of the fixing tube 10 facing the expansion member 202, and the thread adjusting section is used for adjusting the size of the installation gap 40.
In the above implementation process, when the fixing tube 10 is inserted into the mounting groove of the expansion member 202, a thread adjusting section is provided between the external thread 2011 section of the connecting rod 201 and the end of the fixing tube 10 facing the expansion member 202, that is, the connecting tube can be partially disposed in the mounting gap 40 of the atrial shunt 30, and is screwed down continuously to compress the atrial shunt 30, or the mounting gap 40 is adjusted to be larger between the installations of the atrial shunt 30, so that the atrial shunt 30 is partially embedded in the mounting gap 40.
In a possible implementation, the side of the expansion element 202 facing away from the fixed tube 10 is a circular arc surface.
In the implementation process, one side of the expansion part departing from the fixed tube 10 is an arc surface, the arc surface can avoid scratching tissue structures such as blood vessels in the conveying process of the atrial shunt 30, and is convenient for expanding the stoma, so that the operation risk is further reduced. At the same time, the expanded stoma size fits the size of the atrial shunt 30, improving the accuracy of the stoma size.
Referring to fig. 2, in a possible implementation manner, the method further includes: a delivery catheter 60, sleeved over the fixation tube 10 and the atrial shunt 30, for compressing the atrial shunt 30.
In the above implementation, the atrial shunt implantation device 1 further comprises a delivery catheter 60 sleeved outside the fixing tube 10 and the atrial shunt 30, and the delivery catheter 60 can press the atrial shunt 30 between the delivery catheter 60 and the fixing tube 10 to improve the safety of the atrial shunt 30 during the delivery process.
Referring to fig. 1 and 2, in one possible implementation, the expansion element 202 is provided with a guide wire 50 hole, the guide wire 50 hole is provided with a guide wire 50, and the guide wire 50 is inserted into the guide wire 50 hole and used for guiding the atrial shunt 30 to be implanted into the interatrial septum stoma.
In the implementation, the guide wire 50 hole is formed in the center of the expansion member 202, the guide wire 50 is arranged in the guide wire 50 hole, the guide wire 50 is used for being inserted into the stoma after puncture, and the other end of the guide wire is arranged in the guide wire 50 hole, so that the atrial shunt 30 can be guided to quickly reach the stoma position for expansion and implantation of the atrial shunt 30 during the delivery process of the atrial shunt 30, and the implantation efficiency of the atrial shunt 30 is further improved.
Referring to fig. 3 and 4, in one possible implementation, the atrial shunt 30 includes a left disc surface 301 and a right disc surface 302 connected to the left disc surface 301, and a connecting channel 303 is defined in the middle of the left disc surface 301 and the right disc surface 302, wherein the fixed tube 10 is located in the connecting channel 303.
In the above implementation process, the atrial shunt 30 includes a left disc 301 and a right disc 302, a connection channel 303 is defined between the left disc 301 and the right disc 302, the connection channel 303 is configured at the interatrial septum for allowing blood to flow from the left atrium to the right atrium, and the left disc 301 and the right disc 302 are respectively configured at the left atrium and the right atrium and clamped at two sides of the stoma to play a role in fixing so as to prevent the stoma from closing.
In one possible implementation, the left panel surface 301 and the right panel surface 302 are both elastic members.
In the implementation process, the left disc surface 301 and the right disc surface 302 are both elastic pieces, so that the left disc surface and the right disc surface can be compressed and deformed in the conveying process conveniently, the conveying process is facilitated, and meanwhile, the elastic potential energy can be released after the left disc surface and the right disc surface are implanted to restore the original state, so that the fixed clamping stoma and the stoma closing prevention function are achieved.
In one possible implementation, the inner wall surface of the connection channel 303 is coated with a smooth coating.
Through the internal face coating smoothness tectorial membrane at linking channel 303, the smoothness tectorial membrane can be the polytetrafluoroethylene material, also can be the microporous membrane that polytetrafluoroethylene and surface fabric suppression formed, and the smoothness tectorial membrane can make linking channel 303's internal face more smooth to reduce the blood resistance, reduce the thrombus risk.
In one possible implementation, the outer surface of the atrial shunt 30 is coated with a drug coating that inhibits endothelialization.
By coating the outer surface of the atrial shunt 30 with a drug coating, such as rapamycin, paclitaxel, etc., the device is inhibited from endothelialization and the stoma is prevented from closing.
In a possible implementation manner, the left disc surface 301 and the right disc surface 302 are integrally woven by at least one woven net.
In a possible implementation manner, the left disc surface 301 and the right disc surface 302 are respectively woven by at least one woven mesh and formed by laser welding.
Referring to fig. 5, in a second aspect, an atrial shunt implantation method is provided in an embodiment of the present application, and is applied to the atrial shunt implantation device 1 in any one of the embodiments of the first aspect, including:
step S100: one end of the fixing tube is inserted into the mounting groove of the expansion piece, so that a mounting gap is defined between the fixing tube and the expansion piece.
Step S102: the atrium shunt is locally arranged in the installation gap and is tightly pressed in a mode of threaded connection of the connecting rod and the fixed pipe.
Step S104: the heart atrial septal puncture is carried out through the expansion mechanism, one end of the guide wire is inserted into the puncture hole, and the other end of the guide wire is inserted into the guide wire hole of the expansion piece.
Step S106: the connecting channel of the atrial shunt is conveyed to the interatrial septum stoma along the guide wire, and the left disc surface and the right disc surface of the atrial shunt are respectively arranged in the left atrium and the right atrium.
Step S108: the fixation of the fixation tube and the expansion piece to the atrial shunt is released, and the left and right disk surfaces of the atrial shunt respectively clamp the two sides of the atrial septal stoma.
The atrial shunt implantation method provided by the embodiment of the second aspect of the application can complete the purposes of expanding and delivering the atrial shunt at one time after the puncture is completed, thereby effectively reducing the times of auxiliary intervention instruments, shortening the operation time and reducing the operation risk.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. An atrial shunt implantation device, comprising:
the fixed pipe is provided with an installation channel;
an atrium shunt disposed outside the fixed tube;
expanding mechanism, including the connecting rod and with the expansion piece that the connecting rod links to each other, the connecting rod insert locate in the fixed tube and with fixed pipe swing joint, the expansion piece is located the one end of fixed pipe, just the expansion piece orientation one side of fixed pipe is equipped with the mounting groove, the one end of fixed pipe is located in the mounting groove, and with inject between the mounting groove and have the installation clearance, the atrium shunt inlays to be located in the installation clearance.
2. The atrial shunt implant device of claim 1,
the fixed pipe is provided with an internal thread towards the inner wall surface of one end of the expansion piece, the connecting rod is provided with an external thread section, and the fixed pipe is in threaded connection with the connecting rod and is suitable for locally fixing the atrium shunt in the installation gap.
3. The atrial shunt implant device of claim 2,
the external thread section with fixed pipe orientation be equipped with the screw thread between the one end of extension piece and adjust the section, the screw thread is adjusted the section and is used for adjusting the size in installation clearance.
4. The atrial shunt implant device of any one of claims 1 to 3,
one side of the expansion piece, which deviates from the fixed pipe, is an arc surface.
5. The atrial shunt implant device of any one of claims 1 to 3,
the expansion piece is provided with a guide wire hole, a guide wire is arranged in the guide wire hole, and the guide wire is inserted into the guide wire hole and used for guiding the atrium shunt to be implanted into the interatrial septum stoma.
6. The atrial shunt implant device of any one of claims 1 to 3, further comprising:
a delivery catheter sleeved outside the fixed tube and the atrial shunt for compressing the atrial shunt.
7. The atrial shunt implant device of any one of claims 1 to 3,
the atrium shunt comprises a left disk surface and a right disk surface connected with the left disk surface, a connecting channel is limited in the middle of the left disk surface and the right disk surface, and the fixing pipe is located in the connecting channel.
8. The atrial shunt implant device of claim 7,
the left disc surface and the right disc surface are both elastic pieces; and/or
The inner wall surface of the connecting channel is coated with a smooth coating; and/or
The outer surface of the atrial shunt is coated with a drug coating for inhibiting endothelialization.
9. The atrial shunt implant device of claim 7,
the left disc surface and the right disc surface are integrally woven through at least one woven net; or
The left disc surface and the right disc surface are respectively woven by at least one woven mesh and are formed by laser welding.
10. An atrial shunt implantation method adapted for use with the atrial shunt implantation device of any one of claims 1 to 9, comprising:
inserting one end of the fixed pipe into the mounting groove of the expansion piece to ensure that a mounting gap is defined between the fixed pipe and the expansion piece;
the atrium shunt is partially arranged in the installation gap and is tightly pressed in a mode of being in threaded connection with the fixed pipe through the connecting rod;
puncturing the atrial septum of the heart by an expansion mechanism, inserting one end of a guide wire into the puncture hole, and inserting the other end of the guide wire into a guide wire hole of an expansion piece;
conveying the connecting channel of the atrial shunt to the interatrial septum stoma along the guide wire, and respectively arranging the left disc surface and the right disc surface of the atrial shunt in the left atrium and the right atrium;
the fixation of the fixation tube and the expansion piece to the atrial shunt is released, and the left and right disk surfaces of the atrial shunt respectively clamp the two sides of the atrial septal stoma.
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