Myocardial perforation repair cover

Abstract

The application provides a myocardial perforation repair cover and belongs to the field of medical devices. The cover body is sealed outside the pericardium, and a liquid inlet pipe, a liquid outlet pipe and a plurality of operation valve ports are arranged in the cover body. The edge of the cover body is tightly sutured on the pericardium to form a closed operation space. A video rod and a suturing instrument are arranged in the operation space through the valve ports. The video rod can obtain a clear visual field in the operation space through the flushing of the liquid inlet pipe and the liquid outlet pipe at the sutured position, and the suturing instrument is used to suture the myocardial perforation. The application avoids the direct opening of the myocardial perforation, reduces the risk of rapid blood loss through the perforation, recovers the lost blood, greatly reduces the risk of the myocardial perforation repair operation and greatly improves the cure rate.

Description

Technical Field

[0001] This invention relates primarily to the medical field, and more particularly to a myocardial perforation repair cover. Background Technology

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

[0003] Once myocardial perforation occurs, surgery is the only treatment. Currently, the only surgical option is open-chest surgery under cardiopulmonary bypass. During surgery, once the pericardium is opened, a large amount of blood is rapidly lost, necessitating the use of cardiopulmonary bypass and blood salvage. Intraoperative risks include: massive hemorrhage, re-perforation, and complications of cardiopulmonary bypass such as coagulation disorders, infection (including lung infection and bloodstream infection), and cerebral complications (cerebral embolism, cerebral hemorrhage, etc.).

[0004] If the perforation is detected early, the perforation is small, and the patient is in good condition, the success rate of surgery by an experienced medical team can reach approximately 60%-80%. However, if the perforation is large, serious complications occur (such as cardiac arrest due to cardiac tamponade before surgery is performed), or the patient is elderly and has poor physical tolerance, the success rate may drop to below 40%.

[0005] To improve the success rate of surgery, there is an urgent clinical need for a surgical tool that can repair myocardial perforation without the need for cardiopulmonary bypass, thereby reducing surgical bleeding, reducing surgical complications, and improving the patient's survival rate. Summary of the Invention

[0006] To address the aforementioned deficiencies in the prior art, the present invention provides a myocardial perforation repair cover, comprising a bowl-shaped flexible cover 1 for suturing to form a sealed operating space on the pericardium, wherein a sealing membrane ring 11 is provided on the inner side of the bowl edge of the cover 1; an inlet 12 and an outlet 13 are provided through the cover 1 near the bowl edge; at least two operating valve ports 14 are provided through the bowl wall and bottom of the cover 1; 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 installed inside the connecting cover 1.

[0008] Furthermore, it also includes a flushing tube 4 for sealing the inlet 12, an inlet connecting ring 41 is movably sealed on the outside of the flushing tube 4, a flushing liquid bag is connected to the tail of the flushing tube 4, a flushing pressure device 43 is provided on the outside of the flushing liquid bag, and the flushing pressure device 43 pressurizes the flushing liquid bag; the inlet connecting ring 41 is adapted to the inlet 12 for a closed connection.

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

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

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

[0012] Furthermore, the flushing pipe 4 and the drain pipe 5 are connected to a side-through one-way valve port 44 outside the cover 1, and a matching guide core is provided. The guide core is inserted into the front section of the flushing pipe 4 or the drain pipe 5 through the side-through one-way valve port 44. The guide core is a metal rod wrapped with a flexible shell, which can be molded and has a handle at the tail.

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

[0014] Furthermore, the suture restraint ring is an elliptical flexible ring with insertion grooves at both ends of the short axis. The size of the jaws of the ring pusher corresponds to the limiting groove of the suture restraint ring. The jaws of the ring pusher are magnetic. 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 cover 1: Make an incision in the precordial region to expose the pericardium, and seal the bowl-shaped edge of the cover 1 at the appropriate position in the pericardium;

[0017] S2: Establish flushing: The front section of the flushing pipe 4 is sealed and placed into the cavity of the cover 1 through the liquid inlet 12, and the tail is connected to the flushing liquid bag; the front section of the drain pipe 5 is sealed and placed into the cavity of the cover 1 through the drain outlet 13, and the tail is connected to the flushing liquid bag; the gas in the cover 1 is emptied, the flushing pressure and flow rate are adjusted, and the inside of the cover 1 is continuously flushed and drained.

[0018] S3: Locating the perforation: Insert the video rod and surgical scissors into the housing 1 through the operating valve port 14, cut open the pericardium, and expose the perforation on the surface of the myocardium; pull out the surgical scissors, adjust the video rod to find the location of the myocardial perforation;

[0019] S4: Establishing a field of vision: Insert the guide core 61 into the flushing tube 4 and the drain tube 5 through the side one-way valve port 6. Adjust the front openings of the flushing tube 4 and the drain tube 5 to be close to the myocardial perforation position under the video pole, and continuously flush and drain the myocardial perforation position.

[0020] S5: Fixed perforation: A compression ring is inserted into the cover 1 through the operating valve port 14 to moderately compress the perforation position and limit the range of myocardial activity at the corresponding perforation site;

[0021] S6: Closing the perforation: Clamp the suture needle and suture with suture forceps, insert it into the cavity of the cover 1 through the operating valve port 14, leaving the tail of the suture outside the cover 1; use the suture forceps to suture the myocardial perforation, after suturing, pull out the suture forceps, take the end of the needle and suture out of the cover 1, and remove the surgical needle; moderately tighten both ends of the suture, and pass it through the suture binding ring and thread hole at the head of the push ring forceps, and exit through the side of the push ring forceps; hold both ends of the suture, and use the push ring forceps to push the suture binding ring along the suture to the position of the myocardial perforation; push the push ring forceps to tighten the suture and close the myocardial perforation, clamp the suture binding ring to deform and close it, and temporarily fix it at the suture outside the perforation; pull out the push ring forceps, leaving the suture;

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

[0023] S8: Reinforce closure: Remove cover 1, expose the myocardial surface under direct vision, remove the suture restraint ring, re-tie the suture by hand, close the myocardial perforation, and cut off the excess suture; if there are multiple perforations, complete them one by one;

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

[0025] S10: Blood recycling.

[0026] The beneficial effects of this invention are:

[0027] 1. This invention avoids the risk of rapid blood loss from myocardial perforation due to direct opening of the perforation, while also allowing for the recovery of lost blood, thus greatly reducing the risk of myocardial perforation repair surgery and improving the survival rate. Attached Figure Description

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

[0029] Figure 2 This is a structural diagram showing the usage state of the present invention;

[0030] Figure 3 This is 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 This is a schematic diagram of the flushing pressurizer of the present invention;

[0033] Figure 6 This 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 blood recycling bag structure of the present invention;

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

[0036] Figure 9 This is a schematic diagram of the suture restraint ring structure of the present invention;

[0037] Figure 10 This is a schematic diagram of the push ring clamp of the present invention;

[0038] In the picture,

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

[0040] 4. Flushing pipe; 41. Inlet connection ring; 43. Flushing pressurizer; 44. Side-through check valve port;

[0041] 5. Drain tube; 51. Blood recovery bag; 52. Drain connection ring; 54. Filter membrane; 55. Filter outlet; 56. Water collection bag. Detailed Implementation

[0042] To enable those skilled in the art to better understand the technical solutions of the present invention and to make the above-mentioned features, objectives, and advantages of the present invention clearer and easier to understand, the present invention will be further described below with reference to embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0043] refer to Figure 1 , 2 3. A myocardial perforation repair cover includes a bowl-shaped, flexible cover 1 for suturing to form a sealed operating space on the pericardium. A sealing membrane ring 11 is provided on the inner side of the bowl edge of the cover 1. An inlet 12 and an outlet 13 are provided through the cover 1 near the bowl edge. The cover 1 is used to construct a semi-closed space outside the pericardium for surgical operations, which can maintain a dynamic pressure balance inside during surgery. The sealing membrane ring 11 of the cover 1 is used for sealing after suturing and fixing with the pericardium.

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

[0045] refer to Figure 3 In order to facilitate the adjustment of instrument position during surgical operations, especially when multiple positions need to be sutured, the cover 1 is set as two parts, upper and lower, which are sealed together by interlocking. In special cases, the position of the two operating valve ports 14 can be adjusted by rotating the upper and lower sides within a small range.

[0046] refer to Figure 4 In this embodiment, the operating valve port 14 is configured as an operating tube. A sealing valve diaphragm is positioned at one end of the operating tube, pointing towards the cover 1. The sealing valve diaphragm includes a duckbill valve diaphragm and a conical valve diaphragm, with the conical valve diaphragm adjacent to the tube port and the duckbill valve diaphragm adjacent to the conical valve diaphragm. Normally, the duckbill valve diaphragm is closed, sealing the cover 1 through it. After an operating instrument is inserted through the conical valve diaphragm, the duckbill valve diaphragm is also opened, sealing the cover 1 through the conical valve diaphragm and the sealing of the surgical instrument.

[0047] In order to directly observe the cover 1 during the operation, a pressure monitoring tube is installed in the inner cavity of the cover 1. The hydraulic pressure in the pressure monitoring tube is equal to the pressure in the cover 1. The pressure intensity of the cover 1 can be indirectly monitored by a pressure measuring instrument at the other end.

[0048] refer to Figure 2 and 3 To further maintain pressure stability within the enclosure 1, a flushing pipe 4 for sealing the inlet 12 and a drain pipe 5 for sealing the outlet 13 are also included.

[0049] The flushing pipe 4 is externally sealed with a liquid inlet connecting ring 41. The end of the flushing pipe 4 is connected to a flushing liquid bag. A flushing pressure device 43 is installed outside the flushing liquid bag to pressurize the flushing liquid bag. The liquid inlet connecting ring 41 is adapted to and sealed with the liquid inlet 12.

[0050] After the flushing pipe 4 is inserted into the cover 1, it needs to be adjusted. Once it reaches the designated position or the flushing position, the inlet 12 is sealed to the flushing pipe 4 by tightening the inlet connecting ring 41, reducing liquid overflow during the flushing process. In order to fit the angle of the flushing pipe 4, a corrugated pipe section is provided at the inlet 12 for adjusting the angle of entry.

[0051] In this embodiment, the flushing fluid bag is fixed to the outside by means of external placement and is connected to the flushing pipe 4. After the flushing pressurizer 43 applies pressure to the flushing fluid bag, the liquid in the flushing fluid bag is discharged into the flushing pipe 4 and finally enters the cover 1.

[0052] Among them, the flushing pressurizer 43 can 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 baffle plate fixed on the base for placing the flushing fluid bag, a squeezing plate adapted to the concave baffle plate, a pushing worm gear on the side of the squeezing plate away from the baffle plate, a small bidirectional motor connected to the side wall of the pushing worm gear via a turbine, and a speed control switch for controlling the power of the small bidirectional motor. The small bidirectional motor is connected to an external power source through a distribution box. When the external power source is connected, the speed control switch is activated, the small bidirectional motor rotates, and the rotation is transmitted to the pushing worm gear via the turbine, pushing the worm gear forward or backward to pull the squeezing plate.

[0054] To prevent the push worm and the extrusion plate from detaching, the side wall of the extrusion plate is provided with an insertion groove that is limited and connected to a circular insertion plate at one end of the push worm. Similarly, to prevent the extrusion plate and the barrier plate from separating, the side wall of the extrusion plate is provided with a movable protrusion that embeds into a groove in the side wall of the barrier plate.

[0055] refer to Figure 2 and 3 The drain pipe 5 is externally sealed with a drain connection ring 52, and a blood collection bag 51 is installed at the tail of the drain pipe 5; the drain connection ring 52 is adapted to and sealed with the drain port 13. In order to fit the entry angle of the drain pipe 5, a section of corrugated pipe is provided at the drain port 13 for adjusting the entry angle.

[0056] After the drain pipe 5 is inserted into the cover 1, it also needs to be adjusted. Once it reaches the designated position or the drain position, the drain connection ring 52 is tightened to seal the drain port 13 and the drain pipe 5, reducing liquid overflow during the draining process. In this embodiment, the blood collection bag 51 is fixed to the outside by means of external placement and is connected to the drain pipe 5.

[0057] refer to Figure 7 and 8 The blood recycling bag 51 has the following structure: a filter hole area is provided through the side wall of the blood recycling bag 51, and a filter membrane 54 is provided to seal the filter hole area; a filter port 55 is provided on the outside of the blood recycling bag 51, the filter port 55 seals the filter membrane 54 area, and a water collection bag 56 for storing the filtered liquid is provided.

[0058] The patient's blood enters the blood recovery bag 51 through the drain tube 5. Due to continuous flushing through the flushing tube 4 and continuous drainage through the drain tube 5, the blood concentration in the blood recovery bag 51 is low. Excess water is drained through the filter membrane 54 into the collection bag 56 to complete the initial filtration. The remaining blood can be used as reserve blood and selectively transfused back into the patient.

[0059] Especially in cases of multiple myocardial perforations, the prolonged surgical procedure leads to significant blood loss. Furthermore, to ensure a clear view from the video boom, continuous flushing of the perforation sites is necessary, resulting in low blood concentration in the blood collection bag 51. Therefore, it is crucial to fully utilize the blood in the blood collection bag 51, i.e., filtering and reinfusing it into the patient while monitoring vital signs. Particularly when high levels of anticoagulants are used, an ACT test is required, along with the injection of protamine sulfate. The ACT test is an activation whole blood clotting time test, and protamine sulfate is used to treat bleeding caused by heparin overdose; heparin is a commonly used anticoagulant.

[0060] To ensure closure at the site of myocardial perforation, the procedure also includes manipulators and suture restraint rings. The manipulators include a video rod, surgical scissors, a compression ring, suture forceps, and a push ring forceps.

[0061] To prevent backflow in either the irrigation tube 4 or the drainage tube 5, which could lead to surgical accidents, a side-through one-way valve 44 is installed outside the cover 1 to connect the irrigation tube 4 and the drainage tube 5. Similarly, because the irrigation tube 4 and the drainage tube 5 are relatively soft, matching guide cores are installed inside each to ensure their movement within the cover 1 and reduce collision damage. The guide cores are inserted into the front section of the irrigation tube 4 or the drainage tube 5 through the side-through one-way valve 44. The guide cores are metal rods encased in a flexible shell, which are malleable, and have a handle at the tail. The irrigation tube 4 and the drainage tube 5 are indirectly controlled through the tail handle.

[0062] refer to Figure 9 and 10 The suture restraint ring includes a metal ring with an inner cavity that is adapted to double-strand sutures; the head of the push-ring pliers is provided with a clamping end and a clamping body end in sequence, and a threading hole is provided through the clamping body end; the threading hole is smaller than the inner cavity of the suture restraint ring; the suture restraint ring is movably embedded in the clamping end of the push-ring pliers, and the length of the clamping end is not greater than the height of the suture restraint ring.

[0063] The suture restraint ring is an elliptical flexible ring with insertion grooves at both ends of the short axis. The size of the jaws of the ring pusher corresponds to the limiting groove of the suture restraint ring. The jaws of the ring pusher are magnetic. The compression ring includes an insertion ring and a hand handle.

[0064] Cardiac activity can affect surgical suturing, so it needs to be suppressed to a limited extent. This can be achieved by applying pressure with a compression ring, i.e., by pressing the insertion ring, in order to achieve a consistent effect. Then, routine suturing procedures can be performed. I will not go into details here.

[0065] After the initial suture threading is completed, the extreme end of the surgical suture is tucked through the suture restraint loop. Using a loop pusher, the suture restraint loop is pushed through the suture to the suture site. By clamping and deforming the suture restraint loop, initial fixation is achieved. Finally, after knotting and securing, the suture restraint loop is removed using the loop pusher, completing the final fixation.

[0066] To prevent the suture restraint ring from detaching from the pusher clamp, a magnet is installed at the tip of the pusher clamp to prevent it from separating from the suture restraint ring through magnetic attraction. The inner wall of the suture restraint ring also features anti-rebound protrusions and matching insertion grooves. When the suture restraint ring is compressed, the anti-rebound protrusions and insertion grooves engage, further compressing the suture while preventing rebound.

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

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

[0069] S2: Establish flushing: The front end of the flushing tube 4 is sealed and inserted into the cavity of the hood 1 through the inlet 12, and the tail end is connected to the flushing fluid bag; the front end of the drain tube 5 is sealed and inserted into the cavity of the hood 1 through the drain 13, and the tail end is connected to the flushing fluid bag; the gas in the hood 1 is emptied, and the flushing pressure and flow rate are adjusted to continuously flush and drain the inside of the hood 1; in this step, the flushing and drainage need to maintain dynamic balance and ensure that the pressure inside the hood 1 is maintained at a constant value. This value corresponds to the internal pressure at the perforation site. For example, a value of 0.5 to 1.2 kPa can be used at the right atrium to maintain the internal and external pressure balance at the perforation site.

[0070] S3: Locating the perforation: Insert the video rod and surgical scissors into the housing 1 through the operating valve port 14, cut open the pericardium, and expose the perforation on the surface of the myocardium; pull out the surgical scissors, adjust the video rod to find the location of the myocardial perforation; before cutting open the pericardium, it is necessary to reconfirm the pressure inside the housing 1.

[0071] S4: Establishing the field of vision: Insert the guide core 61 into the flushing tube 4 and drainage tube 5 through the side-through one-way valve port 6. Adjust the front opening of the flushing tube 4 and drainage tube 5 to be close to the myocardial perforation position under the video beam. Continuously flush and drain the myocardial perforation position. The flushing tube 4 and drainage tube 5 should be as close as possible to the perforation, but should not affect the surgical field of vision. The blood-stained area should be restored to a visible state by flushing. The guide core 61 can be removed after the position of the flushing tube 4 and drainage tube 5 is adjusted. If there are multiple perforations, the guide core 61 can be inserted into the correct position.

[0072] S5: Fixing the perforation: Insert a compression ring into the cover 1 through the operating valve port 14 to moderately compress the perforation position and limit the range of myocardial activity at the corresponding perforation site; due to the fluctuation of the heart, in order to better suture, it is necessary to inhibit its activity to a certain extent. The compression ring can provide limited restriction, thereby assisting in the completion of the suture.

[0073] S6: Closing the perforation: Clamp the suture needle and suture with suture forceps, insert it into the cavity of the cover 1 through the operating valve port 14, leaving the tail of the suture outside the cover 1; use the suture forceps to suture the myocardial perforation, after suturing, pull out the suture forceps, take the end of the needle and suture out of the cover 1, and remove the surgical needle; moderately tighten both ends of the suture, and pass it through the suture binding ring and thread hole at the head of the push ring forceps, and exit through the side of the push ring forceps; hold both ends of the suture, and use the push ring forceps to push the suture binding ring along the suture to the position of the myocardial perforation; push the push ring forceps to tighten the suture and close the myocardial perforation, clamp the suture binding ring to deform and close it, and temporarily fix it at the suture outside the perforation; pull out the push ring forceps, leaving the suture;

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

[0075] S8: Reinforce closure: Remove cover 1, expose the myocardial surface under direct vision, remove the suture restraint ring, re-tie the suture by hand, close the myocardial perforation, and cut off the excess suture; if there are multiple perforations, complete them one by one;

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

[0077] S10: Blood Recycling. In cases of prolonged surgery, it is necessary to reinfuse the patient's blood. The blood recycling bag 51, after filtering out most of the water, allows for direct reinfusion to aid in the recovery of the patient's vital signs. Due to the use of anticoagulants during surgery, an ACT test will be performed subsequently based on the patient's condition, and protamine sulfate may be used selectively.

[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. Any person skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this patent application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this patent application shall still be covered by the claims of this patent application.

Claims

1. A myocardial perforation repair cover, characterized in that: Includes a bowl-shaped soft cover (1) for suturing to form a sealed operating space on the pericardium, wherein a sealing membrane ring (11) is provided on the inner side of the bowl edge of the cover (1). An inlet (12) and a outlet (13) are provided through the edge of the bowl of the cover (1); at least two operating valve ports (14) are provided through the bowl wall and bottom of the cover (1); the operating valve ports (14) include a video rod insertion valve port and an operating instrument insertion valve port; A pressure monitoring tube is installed inside the connecting cover (1); It also includes a flushing tube (4) for sealing the inlet (12), with an inlet connecting ring (41) movably sealed on the outside of the flushing tube (4), a flushing fluid bag connected to the end of the flushing tube (4), a flushing pressure device (43) installed outside the flushing fluid bag, and the flushing pressure device (43) pressurizes the flushing fluid bag; the inlet connecting ring (41) is adapted to the inlet (12) for a closed connection; It also includes a drain pipe (5) for sealing the drain port (13), a drain connecting ring (52) is provided on the outside of the drain pipe (5), and a blood recovery bag (51) is provided at the end of the drain pipe (5); the drain connecting ring (52) is adapted to the drain port (13) for sealing connection; The flushing pipe (4) and the drain pipe (5) are connected to a side-through one-way valve port (44) outside the cover (1), and a matching guide core is provided. The guide core is inserted into the front section of the flushing pipe (4) or the drain pipe (5) through the side-through one-way valve port (44). The guide core is a metal rod wrapped with a flexible shell, which can be molded and has a handle at the tail.

2. The myocardial perforation repair cover according to claim 1, characterized in that: A filter hole area is provided through the side wall of the blood recovery bag (51), and a filter membrane (54) is provided to seal the filter hole area; a filter port (55) is provided on the outside of the recovery bag (51), the filter port (55) seals the filter membrane (54) area, and a water collection bag (56) for storing the filtered liquid is provided.

3. The myocardial perforation repair cover according to claim 1, characterized in that: It also includes operating instruments and suture restraint rings. The operating instruments include a video rod, surgical scissors, a compression ring, suture forceps, and a pusher ring forceps.

4. The myocardial perforation repair cover according to claim 3, characterized in that: The suture restraint ring includes a metal ring with an inner cavity adapted to double-strand sutures; the head of the push-ring pliers is provided with a clamping end and a clamping body end in sequence, and a threading hole is provided through the clamping body end; the threading hole is smaller than the inner cavity of the suture restraint ring; the suture restraint ring is movably embedded in the clamping end of the push-ring pliers, and the length of the clamping end is not greater than the height of the suture restraint ring.

5. The myocardial perforation repair cover according to claim 4, characterized in that: The suture restraint ring is an elliptical flexible ring with insertion grooves at both ends of the short axis. The size of the jaws of the ring pusher corresponds to the limiting groove of the suture restraint ring. The jaws of the ring pusher are magnetic. The compression ring includes an insertion ring and a hand handle.

6. The myocardial perforation repair cover according to claim 5, characterized in that, The usage method is as follows: S1: Fix the cover (1): Make an incision in the precordial region to expose the pericardium, and seal the bowl-shaped edge of the cover (1) at the appropriate position in the pericardium; S2: Establish flushing: The front section of the flushing pipe (4) is sealed and placed into the cavity of the hood (1) through the inlet (12), and the tail is connected to the flushing liquid bag; the front section of the drain pipe (5) is sealed and placed into the cavity of the hood (1) through the drain outlet (13), and the tail is connected to the flushing liquid bag; the gas in the hood (1) is emptied, the flushing pressure and flow rate are adjusted, and the hood (1) is continuously flushed and drained; S3: Locating the perforation: Insert the video rod and surgical scissors into the cover (1) through the operating valve port (14), cut open the pericardium, and expose the perforation on the surface of the myocardium; pull out the surgical scissors, adjust the video rod to find the location of the myocardial perforation; S4: Establishing a field of vision: Insert the guide core (61) into the flushing tube (4) and the drain tube (5) through the side-through one-way valve port (6). Adjust the opening of the front end of the flushing tube (4) and the drain tube (5) to be close to the myocardial perforation position under the video of the video pole, and continuously flush and drain the myocardial perforation position. S5: Fixed perforation: Insert a compression ring into the cover (1) through the operating valve port (14) to moderately compress the perforation position and limit the range of myocardial activity at the corresponding perforation site; S6: Closing the perforation: Clamp the suture needle with the suture forceps and insert it into the cavity of the cover (1) through the operating valve (14), leaving the tail of the suture outside the cover (1); use the suture forceps to suture the myocardial perforation. After suturing, pull out the suture forceps and bring the end of the needle and thread out of the cover (1) and remove the surgical needle; tighten the ends of the suture appropriately and pass it through the suture binding ring and thread hole at the end of the push ring forceps, and pass it out through the side of the push ring forceps; hold the ends of the suture and use the push ring forceps to push the suture binding ring along the suture to the position of the myocardial perforation; push the push ring forceps to tighten the suture and close the myocardial perforation, clamp the suture binding ring to deform and close it, and temporarily fix it at the suture outside the perforation; pull out the push ring forceps and keep the suture; S7: Repeat closure: If there are multiple perforations, repeat the above operation, suture and close all myocardial perforations; S8: Reinforce closure: Remove the cover (1), expose the myocardial surface under direct vision, remove the suture restraint ring, re-tie the suture by hand, close the myocardial perforation, and cut off the excess suture; if there are multiple perforations, complete them one by one; S9: Hemostasis and suturing: 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.

Images