Myocardial perforation repair cover

Abstract

The invention provides a myocardial perforation repair cover, which belongs to the field of medical instruments and comprises a cover body sealed on the outer side of pericardium, and a liquid inlet pipe, a liquid outlet pipe and a plurality of operating valve ports which are communicated with the cover body, the edge of the mask body is sewn on the pericardium in a closed mode to form a closed operation space, the video rod and the sewing instrument are arranged through the valve port pipe, the sewing position of the liquid inlet pipe and the liquid outlet pipe is flushed so that the video rod can obtain a clear visual field in the operation space, and the myocardial perforation is sewn through the sewing instrument. Risks of direct opening of the myocardial perforation and rapid loss of heart blood through the perforation are avoided, the lost blood is recovered, the risk of the myocardial perforation repair operation is greatly reduced, and the treatment rate is greatly improved.

Description

Technical Field

[0001] The invention mainly relates to the medical field, and in particular to a myocardial perforation repair cover. Background Art

[0002] Within one week after myocardial infarction, some patients will develop myocardial perforation, accompanied by cardiac tamponade, myocardial compression, arrhythmia and heart failure, which will lead to heart failure and symptoms such as dyspnea and edema.

[0003] Once myocardial perforation occurs, surgery is the only means of treatment. Currently, the only surgical option is open-chest surgery under extracorporeal circulation. Once the pericardium is opened during surgery, a large amount of blood is lost rapidly, making extracorporeal circulation and blood recovery necessary. Intraoperative risks include: massive bleeding, re-perforation, and complications of extracorporeal circulation: such as abnormal coagulation function, infection (including lung infection, blood infection), and brain complications (cerebral embolism, cerebral hemorrhage, etc.).

[0004] If the perforation is discovered in time, the perforation is small, the patient is in good physical condition, and the experienced medical team has a success rate of about 60%-80%. If the perforation is large, there are serious complications (such as cardiac tamponade leading to cardiac arrest before surgery), the patient is old and has poor physical tolerance, the success rate may drop to less than 40%.

[0005] In order to improve the success rate of surgery, there is an urgent need for a surgical tool to repair myocardial perforation without the use of extracorporeal circulation support, reduce surgical bleeding, reduce surgical complications, and improve patients' chances of survival. Summary of the invention

[0006] In view of the above-mentioned defects of the prior art, the present invention provides a myocardial perforation repair cover, comprising a bowl-shaped soft cover body 1 for suturing on the pericardium to form a sealed operating space, a sealing membrane ring 11 is arranged on the inner side of the edge of the bowl mouth of the cover body 1; a liquid inlet 12 and a liquid outlet 13 are arranged adjacent to the edge of the bowl mouth of the cover body 1 and penetrate through the cover body 1 to connect; at least two operating valve ports 14 are arranged on the bowl wall and the bottom of the cover body 1 and penetrate through the cover body 1 to connect; the operating valve ports 14 include a video rod insertion valve port and an operating instrument insertion valve port.

[0007] Furthermore, a pressure monitoring tube is provided in communication with the inner cavity of the housing 1 .

[0008] Furthermore, it also includes a flushing tube 4 for sealingly inserting into the liquid inlet 12, a liquid inlet connecting ring 41 is movably provided on the outside of the flushing tube 4 for sealing, the tail end of the flushing tube 4 is connected to a flushing liquid bag, a flushing pressurizer 43 is provided outside the flushing liquid bag, and the flushing pressurizer 43 pressurizes the flushing liquid bag; the liquid inlet connecting ring 41 is adapted to be closed and connected with the liquid inlet 12.

[0009] Furthermore, it also includes a drainage tube 5 for sealingly inserting into the drainage port 13, a drainage connecting ring 52 is movably provided on the outside of the drainage tube 5 for sealing, and a blood recovery bag 51 is provided at the tail of the drainage tube 5; the drainage connecting ring 52 is adapted to be sealed and connected with the drainage port 13.

[0010] Furthermore, a water filter hole area is set through the side wall of the blood recovery bag 51, and a water filter membrane 54 is set to seal the water filter hole area; a water filter port 55 is set on the outside of the recovery bag 51, and the water filter port 55 seals the water filter membrane 54 area and is connected to a water accumulation bag 56 for storing filtered liquid.

[0011] Furthermore, it also includes operating instruments and suture restraining rings. The operating instruments include a video rod, surgical scissors, a compression ring, suture forceps and push ring forceps.

[0012] Furthermore, the flushing pipe 4 and the drainage pipe 5 are connected to each other by a side one-way valve port 44 outside the cover body 1, and a matching guide core is provided, and the guide core is inserted into the front section of the flushing pipe 4 or the drainage pipe 5 through the side one-way valve port 44; the guide core is a metal rod wrapped in a flexible shell, which can be shaped, and a handle is provided at the tail.

[0013] Furthermore, the suture restraining ring includes a metal ring, the inner cavity of which is adapted to the double-strand suture; the head of the push-ring pliers is sequentially provided with a clamp end and a clamp body end, and a threading hole is provided through the clamp body end; the threading hole is smaller than the inner cavity of the suture restraining ring; the suture restraining ring is movably embedded in the clamp end of the push-ring pliers, and the length of the clamp end is not greater than the height of the suture restraining ring.

[0014] Furthermore, the suture restraining ring is an elliptical flexible ring with insertion grooves at both ends of the short axis. The size of the clamp head of the push-ring pliers is set to correspond to the limit groove of the suture restraining ring. The clamp head of the push-ring pliers is magnetic, and the compression ring includes an insertion ring and a hand handle.

[0015] The method of using the myocardial perforation repair cover is as follows:

[0016] S1: Fix the mask 1: make an incision in the precardiac area to expose the pericardium, and seal and suture the bowl-shaped edge of the mask 1 to the appropriate position of the pericardium;

[0017] S2: Establish flushing: The front section of the flushing tube 4 is sealed and placed into the cavity of the mask body 1 through the liquid inlet 12, and the rear section is connected to the flushing liquid bag 41; the front section of the drainage tube 5 is sealed and placed into the cavity of the mask body 1 through the liquid drainage port 13, and the rear section is connected to the flushing liquid bag 41; the gas in the mask body 1 is emptied, and the flushing pressure and flow rate are adjusted to continuously flush and drain the mask body 1;

[0018] S3: Positioning the perforation: inserting a video rod and surgical scissors into the housing 1 through the operating valve port 14, cutting the pericardium, exposing the perforation on the myocardial surface; pulling out the surgical scissors, and adjusting the video rod to find the position of the myocardial perforation;

[0019] S4: Establishing the visual field: inserting the guide core 61 into the flushing tube 4 and the drainage tube 5 through the side one-way valve port 6, adjusting the front end openings of the flushing tube 4 and the drainage tube 5 close to the myocardial perforation position under the video rod video, and continuously flushing and draining the myocardial perforation position;

[0020] S5: Fixing the perforation: inserting a compression ring into the mask body 1 through the operating valve port 14 to appropriately compress the perforation position and limit the amplitude of myocardial activity at the corresponding part of the perforation;

[0021] S6: Suturing the perforation: clamp the suture needle and thread with the suture forceps, insert it into the cavity of the cover body 1 through the operating valve port 14, and leave the tail of the suture thread outside the cover body 1; use the suture forceps to suture the myocardial perforation, and after the suture is completed, pull out the suture forceps, bring the needle and thread head end out of the cover body 1, and remove the surgical needle; appropriately tighten the ends of the suture thread, insert the suture thread into the suture locking ring and threading hole at the head end of the push ring forceps through the ends of the suture thread, and pass it out from the side of the push ring forceps; hold the ends of the suture thread, and use the push ring forceps to push the suture locking ring along the suture line to the position of the myocardial perforation; hold the suture thread to close the myocardial perforation with the push ring forceps, clamp the suture locking ring, deform the suture locking ring and close it, and temporarily fix it tightly at the suture line outside the perforation; pull out the push ring forceps to retain the suture thread;

[0022] S7: Repeat closure: If there are multiple perforations, repeat the above steps to suture and close all myocardial perforations;

[0023] S8: Reinforcement closure: remove the cover 1, expose the myocardial surface under direct vision, remove the suture locking ring, manually tie the suture again, close the myocardial perforation, and cut off the excess suture; if there are multiple perforations, complete them one by one;

[0024] S9: Hemostasis and suture: suture the pericardium, stop bleeding, and suture the incision;

[0025] S10: Blood recovery.

[0026] Beneficial effects of the present invention:

[0027] 1. The present invention avoids the risk of direct opening of myocardial perforation and rapid loss of cardiac blood through the perforation, and can recover the lost blood, thereby greatly reducing the risk of myocardial perforation repair surgery and improving the rescue rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the cover structure of the present invention;

[0029] Figure 2 The present invention uses a state structure diagram;

[0030] Figure 3 A cross-sectional view of the present invention in use;

[0031] Figure 4This is a schematic diagram of the internal structure of the operating valve port of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the flushing pressurizer of the present invention;

[0033] Figure 6 It is a schematic diagram of the internal structure of the flushing pressurizer of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the blood recovery bag of the present invention;

[0035] Figure 8 This is a schematic diagram of the internal structure of the blood recovery bag of the present invention;

[0036] Fig. 9 It is a schematic diagram of the structure of the suture restraining ring of the present invention;

[0037] Fig.10 It is a structural schematic diagram of the push ring pliers of the present invention;

[0038] In the figure,

[0039] 1. Cover body; 11. Seal diaphragm ring; 12. Liquid inlet; 13. Liquid discharge port; 14. Operation valve port

[0040] 4. Flushing pipe; 41. Liquid inlet connection ring; 43. Flushing pressurizer; 44. Side-pass one-way valve port;

[0041] 5. Drainage tube; 51. Blood recovery bag; 52. Drainage connection ring; 54. Water filter membrane; 55. Water filter port; 56. Water collection bag. DETAILED DESCRIPTION

[0042] In order to make the technical solution of the present invention better understood by the technical personnel in the field, and to make the above-mentioned features, purposes and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with the embodiments. The embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0043] refer to Figure 1 , 2 3. A myocardial perforation repair cover, comprising a bowl-shaped soft cover body 1 for suturing on the pericardium to form a sealed operation space, a sealing membrane ring 11 is arranged inside the edge of the cover body 1; a liquid inlet 12 and a liquid outlet 13 are arranged near the edge of the cover body 1 and penetrate and communicate with the cover body 1; the cover body 1 is used to construct a semi-enclosed space for surgical operation outside the pericardium, and this space can achieve the ability to maintain a dynamic balance of pressure inside during surgery. The sealing membrane ring 11 of the cover body 1 is used for sealing after being sutured and fixed with the pericardium.

[0044] At least two operation valve ports 14 are provided on the bowl wall and the bowl bottom of the cover body 1, penetrating and connecting the cover body 1; the operation valve ports 14 include a video rod insertion valve port and an operation instrument insertion valve port, which are used to insert a video rod and an operation instrument for surgery. In order to facilitate the operation of the attending physician, the two operation valve ports 14 are distributed on both sides of the cover body 1.

[0045] refer to Figure 3 In order to facilitate the position adjustment of the instrument during the surgical operation, especially when multiple positions need to be suturing, the cover body 1 is provided with two upper and lower parts, which are sealed and connected by interlocking. In special cases, the upper and lower sides can adjust the positions of the two operating valve ports 14 by a small range of rotation.

[0046] refer to Figure 4 In this embodiment, the operation valve port 14 is set as an operation tube, and the tube port at one end of the operation tube is provided with a sealing valve membrane pointing to the mask body 1, and the sealing valve membrane includes a duckbill valve membrane and a conical valve membrane, the conical valve membrane is close to the tube port, and the duckbill valve membrane is close to the conical valve membrane. Under normal conditions, the duckbill valve membrane is closed, and the mask body 1 is sealed by the duckbill valve membrane. After the operation instrument is inserted into the conical valve membrane, the duckbill valve membrane will also be stretched open, and the mask body 1 is sealed by the conical valve membrane and the surgical instrument.

[0047] In order to visually observe the hood 1 during surgery, a pressure monitoring tube is set in communication with the inner cavity of the hood 1. The hydraulic pressure in the pressure monitoring tube is equal to the pressure in the hood 1. The pressure intensity of the hood 1 can be indirectly monitored by a pressure measuring instrument at the other end.

[0048] refer to Figure 2 and 3 In order to further maintain the stability of the pressure in the housing 1, a flushing pipe 4 for sealingly inserting the liquid inlet 12 and a drain pipe 5 for sealingly inserting the liquid drain port 13 are also included:

[0049] A liquid inlet connection ring 41 is provided on the outside of the flushing tube 4 to seal and move. The tail of the flushing tube 4 is connected to a flushing liquid bag. A flushing pressurizer 43 is provided outside the flushing liquid bag to pressurize the flushing liquid bag. The liquid inlet connection ring 41 is adapted to be sealed and connected with the liquid inlet 12.

[0050] After the flushing pipe 4 is inserted into the housing 1, it needs to be adjusted. After reaching the designated position or flushing position, the liquid inlet 12 is sealed and connected to the flushing pipe 4 by tightening the liquid inlet connection ring 41 to reduce the overflow of liquid during the flushing process. In order to fit the angle of the flushing pipe 4, a section of bellows is provided at the liquid inlet 12 for adjusting the entry angle.

[0051] In this embodiment, the flushing liquid bag is fixed to the outside by external placement or other means and is connected to the flushing tube 4. After the flushing liquid bag is pressurized by the flushing pressurizer 43, the liquid in the flushing liquid bag is discharged into the flushing tube 4 and finally enters the cover body 1.

[0052] The flushing pressurizer 43 may be a medical pressurizer.

[0053] refer to Figure 5 and 6 In this embodiment, the specific structure of the flushing pressurizer 43 is as follows: a base, a "concave" blocking plate fixed on the base for placing the flushing liquid bag, an extrusion plate adapted to the "concave" fence, a pushing worm on the side of the extrusion plate away from the blocking plate, a small bidirectional motor connected to the side wall of the pushing worm through a turbine, and a shift switch for controlling the power of the small bidirectional motor. The small bidirectional motor is connected to an external power supply through a distribution box. When the external power supply is connected, the shift switch is activated, the small bidirectional motor rotates, and the transmission is transmitted to the pushing worm through the turbine, and the worm is pushed to push or pull the extrusion plate forward.

[0054] In order to prevent the pushing worm and the extrusion plate from falling off, the side wall of the extrusion plate is provided with an insertion groove and a circular insertion plate limit connection at one end of the pushing worm. Similarly, in order to prevent the extrusion plate and the blocking plate from separating, the side wall of the extrusion plate is provided with a moving protrusion embedded in the groove of the side wall of the blocking plate.

[0055] refer to Figure 2 and 3 The drainage pipe 5 is provided with a drainage connection ring 52 for sealing and movement, and a blood recovery bag 51 is provided at the tail of the drainage pipe 5; the drainage connection ring 52 is adapted to be sealed and connected with the drainage port 13. In order to fit the angle of the drainage pipe 5 entering, a section of corrugated pipe is provided at the drainage port 13 for adjusting the entry angle.

[0056] After the drainage tube 5 is inserted into the housing 1, it also needs to be adjusted. After reaching the designated position or the drainage position, the drainage port 13 is sealed and connected to the drainage tube 5 by tightening the drainage connection ring 52 to reduce the overflow of liquid during the drainage process. In this embodiment, the blood recovery bag 51 is fixed to the outside by external placement or other methods and is connected to the drainage tube 5.

[0057] refer to Figure 7 and 8 The relevant structure of the blood recovery bag 51 is as follows: a water filter hole area is set through the side wall of the blood recovery bag 51, and a water filter membrane 54 is set to seal the water filter hole area; a water filter port 55 is set on the outside of the blood recovery bag 51, and the water filter port 55 seals the water filter membrane 54 area and is connected to a water accumulation bag 56 for storing filtered liquid.

[0058] The patient's blood enters the blood recovery bag 51 from the drainage tube 5. Due to the continuous flushing of the flushing tube 4 and the continuous drainage of the drainage tube 5, the blood concentration in the blood recovery bag 51 is low. The excess water in the blood recovery bag 51 is discharged to the water bag 56 through the water filter membrane 54 to complete the preliminary filtration. The remaining blood can be used as spare blood and selectively transfused back into the patient's body.

[0059] Especially in the case of multiple myocardial perforations, a lot of blood will be lost due to the long operation process. At the same time, in order to ensure the clear field of view of the video rod, the perforation needs to be continuously flushed, and the blood concentration in the blood recovery bag 51 is low. Based on this, the blood in the blood recovery bag 51 must be fully utilized, that is, it must be filtered and then re-infused into the patient's body, and vital monitoring must be performed. Especially when anticoagulants are used more, an ACT test is required, and protamine is injected. The ACT test refers to a test for activating the whole blood clotting time. Protamine is used to treat bleeding caused by excessive injection of heparin, which is a commonly used anticoagulant.

[0060] In order to ensure the suturing at the myocardial perforation, operating instruments and suture restraining rings are also included. The operating instruments include a video rod, surgical scissors, a compression ring, suture forceps and a push ring forceps.

[0061] In order to prevent any backflow of the flushing tube 4 and the drainage tube 5, which may cause an accident during the operation, the flushing tube 4 and the drainage tube 5 are connected outside the cover body 1 and a side check valve port 44 is set. Similarly, since the flushing tube 4 and the drainage tube 5 are relatively soft, in order to ensure the movement of the two in the cover body 1 and reduce collision damage, matching guide cores are set in the flushing tube 4 and the drainage tube 5 respectively, and the guide core is placed in the front section of the flushing tube 4 or the drainage tube 5 through the side check valve port 44; the guide core is a metal rod wrapped in a flexible shell, which can be shaped and has a handle at the tail. The flushing tube 4 and the drainage tube 5 are indirectly controlled by the tail handle.

[0062] refer to Fig. 9 and 10 The suture restraining ring includes a metal ring, and the inner cavity is adapted to the double-strand suture; the head of the push-ring pliers is sequentially provided with a clamp end and a clamp body end, and a threading hole is arranged through the clamp body end; the threading hole is smaller than the inner cavity of the suture restraining ring; the suture restraining ring is movably inlaid at the clamp end of the push-ring pliers, and the length of the clamp end is not greater than the height of the suture restraining ring.

[0063] The suture restraining ring is an elliptical flexible ring with insertion grooves at both ends of the short axis. The size setting of the clamp head of the push ring pliers corresponds to the limiting groove of the suture restraining ring. The clamp head of the push ring pliers is magnetic, and the compression ring includes a probe ring and a hand handle.

[0064] Heart activity will affect surgical suturing and needs to be limitedly suppressed through compression by the compression ring, that is, pressing the probe ring to achieve a consistent effect, followed by conventional suturing operations. I will not go into details here.

[0065] After the initial threading is completed, the tail of the surgical suture is pulled to the extreme and passed through the suture locking ring. The suture locking ring is pushed through the surgical suture to the suture site by the ring pusher. The suture locking ring is squeezed and deformed by clamping to complete the initial fixation. Finally, after knotting and fixing, the suture locking ring is removed by the ring pusher to complete the entire fixation.

[0066] In order to prevent the suture locking ring and the push ring pliers from falling off, a magnet is set on the top of the push ring pliers to prevent it from falling off from the suture locking ring by magnetic adsorption. The inner wall of the suture locking ring is also provided with an anti-rebound protrusion and an insertion groove of matching size. After the suture locking ring is compressed, the anti-rebound protrusion fits with the insertion groove, which can further suppress the suture and prevent rebound.

[0067] The method of using the myocardial perforation repair cover is as follows:

[0068] S1: Fix the mask 1: Make an incision in the precardiac area to expose the pericardium, and seal and suture the bowl-shaped edge of the mask 1 to the appropriate position of the pericardium; the perforation position should be completely covered during suturing.

[0069] S2: Establish flushing: the front section of the flushing tube 4 is sealed and placed into the cavity of the mask body 1 through the liquid inlet 12, and the rear section is connected to the flushing liquid bag 41; the front section of the discharge tube 5 is sealed and placed into the cavity of the mask body 1 through the liquid discharge port 13, and the rear section is connected to the flushing liquid bag 41; the gas in the mask body 1 is emptied, and the flushing pressure and flow rate are adjusted to continuously flush and drain the mask body 1; in this step, flushing and drainage need to maintain dynamic balance and ensure that the pressure in the mask body 1 is maintained at a constant value, which corresponds to the internal pressure at the perforation location. For example, a value of 0.5 to 1.2 KPa can be used at the right atrium to maintain the balance of internal and external pressures at the perforation location.

[0070] S3: Positioning the perforation: insert a video rod and surgical scissors into the cover body 1 through the operating valve port 14, cut the pericardium, and expose the myocardial surface for perforation; pull out the surgical scissors, adjust the video rod to find the location of the myocardial perforation; before cutting the pericardium, it is necessary to confirm the pressure inside the cover body 1 again.

[0071] S4: Establishing the field of vision: Insert the guide core 61 into the flushing tube 4 and the drainage tube 5 through the side one-way valve port 6, adjust the front end openings of the flushing tube 4 and the drainage tube 5 to be close to the location of the myocardial perforation through the video rod, and continuously flush and drain the location of the myocardial perforation; place the flushing tube 4 and the drainage tube 5 as close to the perforation as possible, but do not affect the surgical field of vision, and restore the blood-stained area to a visible state by flushing. The guide core 61 can be taken out after the flushing tube 4 and the drainage tube 5 are adjusted in position, and can be placed in position if there are more perforations.

[0072] S5: Fix the perforation: insert a compression ring into the cover body 1 through the operating valve port 14 to appropriately compress the perforation position and limit the amplitude of myocardial activity at the corresponding part of the perforation; due to the fluctuation of the heart, its activity needs to be suppressed to a certain extent for better suturing, and the compression ring can be used to impose limited restrictions to assist in the completion of the suture.

[0073] S6: Suturing the perforation: clamp the suture needle and thread with the suture forceps, insert it into the cavity of the cover body 1 through the operating valve port 14, and leave the tail of the suture thread outside the cover body 1; use the suture forceps to suture the myocardial perforation, and after the suture is completed, pull out the suture forceps, bring the needle and thread head end out of the cover body 1, and remove the surgical needle; appropriately tighten the ends of the suture thread, insert the suture thread into the suture locking ring and threading hole at the head end of the push ring forceps through the ends of the suture thread, and pass it out from the side of the push ring forceps; hold the ends of the suture thread, and use the push ring forceps to push the suture locking ring along the suture line to the position of the myocardial perforation; hold the suture thread to close the myocardial perforation with the push ring forceps, clamp the suture locking ring, deform the suture locking ring and close it, and temporarily fix it tightly at the suture line outside the perforation; pull out the push ring forceps to retain the suture thread;

[0074] S7: Repeat closure: If there are multiple perforations, repeat the above steps to suture and close all myocardial perforations;

[0075] S8: Reinforcement closure: remove the cover 1, expose the myocardial surface under direct vision, remove the suture locking ring, manually tie the suture again, close the myocardial perforation, and cut off the excess suture; if there are multiple perforations, complete them one by one;

[0076] S9: Hemostasis and suture: suture the pericardium, stop bleeding, and suture the incision;

[0077] S10: Blood recovery. In the case of a long operation, the patient's blood needs to be transfused. After filtering out most of the water, the blood recovery bag 51 can be directly transfused to assist the patient's vital state recovery. Due to the use of anticoagulants during the operation, ACT tests are subsequently performed according to the patient's condition, and protamine is selectively used.

[0078] The above embodiments are merely illustrative of the principles and effects of this patent application, and are not intended to limit this patent application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of this patent application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in this patent application should still be covered by the claims of this patent application.

Claims

1. A myocardial perforation repair cover, characterized in that: It comprises a bowl-shaped soft cover body (1) used for suturing on the pericardium to form a sealed operation space, and a sealing membrane ring (11) is arranged on the inner side of the edge of the bowl mouth of the cover body (1); A liquid inlet (12) and a liquid outlet (13) are provided adjacent to the edge of the bowl opening of the cover body (1) and penetrate through the cover body (1); at least two operating valve ports (14) are provided on the bowl wall and the bottom of the cover body (1) and penetrate through the cover body (1); the operating valve ports (14) include a video rod insertion valve port and an operating instrument insertion valve port.

2. The myocardial perforation repair cover according to claim 1, characterized in that: A pressure monitoring tube is arranged in the inner cavity of the connecting cover body (1).

3. The myocardial perforation repair cover according to claim 1, characterized in that: It also includes a flushing tube (4) for sealingly inserting into the liquid inlet (12); a liquid inlet connection ring (41) is movably provided on the outside of the flushing tube (4) in a sealed manner; the rear end of the flushing tube (4) is connected to a flushing liquid bag; a flushing pressurizer (43) is provided outside the flushing liquid bag; the flushing pressurizer (43) pressurizes the flushing liquid bag; and the liquid inlet connection ring (41) is adaptively and sealedly connected to the liquid inlet (12).

4. The myocardial perforation repair cover according to claim 1, characterized in that: It also includes a drainage tube (5) for sealingly inserting into the drainage port (13); a drainage connection ring (52) is movably provided on the outside of the drainage tube (5) for sealing; a blood recovery bag (51) is provided at the tail of the drainage tube (5); and the drainage connection ring (52) is adapted to be sealed and connected with the drainage port (13).

5. The myocardial perforation repair cover according to claim 4, characterized in that: A water filter hole area is set through the side wall of the blood recovery bag (51), and a water filter membrane (54) is set to seal the water filter hole area; a water filter port (55) is set on the outside of the recovery bag (51), and the water filter port (55) seals the water filter membrane (54) area and is connected to a water storage bag (56) for storing filtered liquid.

6. The myocardial perforation repair cover according to claim 1, characterized in that: It also includes operating instruments and suture restraining rings. The operating instruments include a video pole, surgical scissors, a compression ring, suture forceps and a push ring forceps.

7. The myocardial perforation repair cover according to claim 3 or 4, characterized in that: The flushing pipe (4) and the drainage pipe (5) are connected to each other by a side one-way valve port (44) outside the cover body (1), and a matching guide core is provided. The guide core is placed into the front section of the flushing pipe (4) or the drainage pipe (5) through the side one-way valve port (44); the guide core is a metal rod wrapped in a flexible shell, which can be shaped, and a handle is provided at the tail.

8. The myocardial perforation repair cover according to claim 6, characterized in that: The suture restraining ring includes a metal ring, and the inner cavity is adapted to the double-strand suture; the head of the push-ring pliers is sequentially provided with a clamp end and a clamp body end, and a threading hole is provided through the clamp body end; the threading hole is smaller than the inner cavity of the suture restraining ring; the suture restraining ring is movably embedded in the clamp end of the push-ring pliers, and the length of the clamp end is not greater than the height of the suture restraining ring.

9. The myocardial perforation repair cover according to claim 8, characterized in that: The suture restraining ring is an elliptical flexible ring with insertion grooves at both ends of the short axis. The size of the pliers head of the push-ring pliers corresponds to the limiting groove of the suture restraining ring. The pliers head of the push-ring pliers is magnetic, and the compression ring includes an insertion ring and a hand-held handle.

10. The myocardial perforation repair cover according to any one of claims 1 to 9, characterized in that: How to use: S1: Fixing the mask (1): Make an incision in the precordial area to expose the pericardium, and seal and suture the bowl-shaped edge of the mask (1) to a suitable position in the pericardium; S2: Establish flushing: the front section of the flushing tube (4) is sealed and placed into the cavity of the cover body (1) through the liquid inlet (12), and the rear section is connected to the flushing liquid bag (41); the front section of the drainage tube (5) is sealed and placed into the cavity of the cover body (1) through the liquid drainage port (13), and the rear section is connected to the flushing liquid bag (41); the gas in the cover body (1) is emptied, and the flushing pressure and flow rate are adjusted to continuously flush and drain the inside of the cover body (1); S3: Positioning the perforation: inserting a video rod and surgical scissors into the cover body (1) through the operating valve port (14), cutting the pericardium, exposing the myocardial surface for perforation; pulling out the surgical scissors, and adjusting the video rod to find the position of the myocardial perforation; S4: Establishing the visual field: inserting the guide core (61) into the flushing tube (4) and the drainage tube (5) through the side one-way valve port (6), adjusting the front end openings of the flushing tube (4) and the drainage tube (5) close to the myocardial perforation position under the video rod video, and continuously flushing and draining the myocardial perforation position; S5: Fixing the perforation: inserting a compression ring into the cover body (1) through the operating valve port (14), appropriately compressing the perforation position, and limiting the amplitude of myocardial activity at the perforation corresponding position; S6: Suturing the perforation: Clamp the suture needle and thread with a suture clamp, insert it into the cavity of the cover body (1) through the operating valve port (14), and leave the tail of the suture thread outside the cover body (1); use the suture clamp to suture the myocardial perforation, and after the suture is completed, pull out the suture clamp, bring the needle and thread head out of the cover body (1), and remove the surgical needle; appropriately tighten the head and tail of the suture thread, Insert the suture ends into the suture locking ring and threading hole at the head end of the push ring clamp, and then pass it out from the side of the push ring clamp; Pull and hold both ends of the suture, and use the push ring forceps to push the suture locking ring along the suture to the position of the myocardial perforation; push the ring forceps to hold and tighten the suture to close the myocardial perforation, clamp the suture locking ring to deform and close it, and temporarily fix it tightly at the suture outside the perforation; pull out the push ring forceps to retain the suture; S7: Repeat closure: If there are multiple perforations, repeat the above steps, suture and close all myocardial perforations; S8: Reinforced closure: Remove the cover (1), expose the myocardial surface under direct vision, remove the suture locking ring, Re-tie the suture manually to close the myocardial perforation and cut off the excess suture; if there are multiple perforations, complete them one by one; S9: Hemostasis and suture: suture the pericardium, stop bleeding, and suture the incision; S10: Blood recovery: pressurize the blood recovery bag (51) to filter out water and return it to the patient.

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