Drainage device with intrapericardial anticoagulant effect after cardiac surgery

Abstract

The present application relates to the technical field of cardiac surgery, and in particular to a drainage device with pericardial positioning and anticoagulant efficacy after cardiac surgery. The drainage device with pericardial positioning and anticoagulant efficacy after cardiac surgery comprises a tube body, a positioning portion, and a drug supply portion; one end of the tube body is an insertion end for placement into the pericardium, a drug supply channel and a diversion channel for pericardial liquid to pass through are formed in the tube body, the diversion channel and the drug supply channel are isolated from each other, and the drug supply portion is connected to the drug supply channel so that the drug supply portion can drive the drug into the drug supply channel; the diversion channel forms a diversion port at the insertion end, the drug supply channel forms a drug supply port at the insertion end, the positioning portion is installed on the drug supply port, the positioning portion is used to cooperate with the blood clot in the pericardium to limit the position, and a delivery channel connected to the drug supply channel is formed in the positioning portion. The diversion channel and the drug supply channel are integrated in the tube body, and there is no need to place multiple tube bodies in the pericardium, which reduces the multiple traumas of placing the drainage device into the pericardium, reduces the difficulty of drug administration, and improves the accuracy of drug administration.

Description

Technical Field

[0001] The present application relates to the technical field of cardiac surgery, and in particular to a drainage device with intrapericardial anticoagulation effect after cardiac surgery. Background Art

[0002] After cardiac surgery, due to many reasons such as untimely drainage or excessive drainage, doctors have to use anticoagulants, etc., blood clots are easily formed in the patient's pericardium. Blood clots are a semi-solid substance formed after the blood components coagulate. If the blood clots are small, they can be slowly absorbed by themselves. However, if the blood clots are large and large, they will cause pressure on the heart, especially on key parts, affecting myocardial contraction, causing circulatory instability and cardiac hemodynamic disorders, thereby endangering the patient's life. In this case, a second thoracotomy and pericardial drainage treatment is required. A drug catheter is inserted into the blood clot in the pericardium to release drugs to dissolve the blood clot, and a drainage tube is used to drain the fluid in the pericardium, avoiding the need for a second thoracotomy.

[0003] However, the space of the pericardial cavity is small, and it is technically difficult to accurately place the drainage tube and drug catheter in the area where blood clots accumulate. In addition, since cardiac beating can cause catheter displacement, the implementation of continuous drug infusion may affect the accuracy of targeted drug release around the blood clot, reducing the effect of dissolving the blood clot. These factors together constitute the therapeutic effect of blood clots in the pericardium. Summary of the Invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a drainage device with intrapericardial anticoagulation effect after cardiac surgery.

[0005] The present application provides a drainage device with intrapericardial anticoagulation effect after cardiac surgery, comprising a tube body, a positioning portion and a drug supply portion;

[0006] One end of the tube body is an insertion end for placement into the pericardium. A drug supply channel and a diversion channel for pericardial fluid to pass through are formed in the tube body. The diversion channel is isolated from the drug supply channel. The drug supply portion is in communication with the drug supply channel so that the drug supply portion can drive the drug into the drug supply channel.

[0007] The diversion channel forms a diversion port at the insertion end, the drug supply channel forms a drug supply port at the insertion end, the positioning part is installed on the drug supply port, the positioning part cooperates with the blood clot in the pericardium to limit the position, and a delivery channel connected to the drug supply channel is formed in the positioning part.

[0008] Optionally, the positioning portion includes a flexible needle structure, the flexible needle structure is connected to the drug supply port, the flexible needle structure is communicated with the drug supply channel, and the flexible needle structure can pierce the blood clot in the pericardium.

[0009] Optionally, the flexible needle structure includes a plurality of micro needles and a mounting portion, wherein the plurality of micro needles are connected to one side of the mounting portion, and the other side of the mounting portion is connected to the drug supply port, and the interior of each micro needle is hollow and connected to the drug supply channel.

[0010] Optionally, the positioning portion further includes a marking column, the marking column being disposed on the mounting portion and extending in a direction away from the drug supply channel, a connecting channel communicating with the drug supply channel being formed in the marking column, and at least part of the micro needles being disposed on the marking column and communicating with the connecting channel;

[0011] At least a portion of the marker column can block X-ray penetration so as to be displayed in an X-ray image.

[0012] Optionally, there are multiple marking posts, and the multiple marking posts are spaced apart in a direction around the center point of the mounting portion, and each of the marking posts is provided with the micro needle.

[0013] Optionally, the area of ​​the diversion port is larger than the area of ​​the medicine supply port.

[0014] Optionally, a drainage joint is provided at one end of the tube body away from the insertion end, and a drainage bottle is provided on the outside of the tube body;

[0015] The drainage joint extends into the diversion channel, and the drainage bottle is detachably connected to the drainage joint so that the drainage bottle is communicated with the diversion channel through the drainage joint.

[0016] Optionally, the drug supply part includes a drug storage part, a driving part and a controller, the drug storage part is used to store drugs, the drug storage part is connected to the drug supply channel, the driving part is arranged on the drug storage part, the driving part can drive the drugs in the drug storage part into the drug supply channel, the controller is electrically connected to the driving part, and the controller can control the flow rate of the drugs driven by the driving part to enter the drug supply channel.

[0017] Optionally, a plurality of side holes are formed on the side surface of the tube body, and the plurality of side holes are arranged at intervals along the extension direction of the tube body, and the plurality of side holes are all connected to the guide channel.

[0018] Optionally, an adsorption member is provided at one end of the tube body away from the insertion end;

[0019] And / or, scale lines are provided on the tube body.

[0020] The technical solution provided by this application has the following advantages over the existing technology:

[0021] The present application provides a drainage device with pericardial positioning and anticoagulant efficacy after cardiac surgery, comprising a tube body, a positioning portion, and a drug supply portion; one end of the tube body is an insertion end for placement into the pericardium, the tube body is formed with a drug supply channel and a diversion channel for pericardial fluid to pass through, the diversion channel and the drug supply channel are isolated from each other, and the drug supply portion is connected to the drug supply channel so that the drug supply portion can drive the drug into the drug supply channel; the diversion channel forms a diversion port at the insertion end, the drug supply channel forms a drug supply port at the insertion end, the positioning portion is mounted on the drug supply port, the positioning portion is used to limit the position of the blood clot in the pericardium, and the positioning portion is formed with a delivery channel connected to the drug supply channel. The diversion channel and the drug supply channel are integrated into the tube body, and the insertion end is placed into the pericardium, so that the drainage device can deliver drugs into the pericardium and discharge pericardial fluid out of the pericardium, without the need to place multiple tubes into the pericardium, reducing the multiple trauma of placing the drainage device into the pericardium and reducing the difficulty of drug administration. The positioning part cooperates with the blood clot limiter to keep the relative positions of the delivery channel, the diversion channel and the blood clot stable, so that the drainage device can accurately and continuously deliver the drug to the blood clot, and after the blood clot dissolves, it can smoothly enter the diversion channel; through the mutual cooperation of the tube body and the positioning part, the therapeutic effect of the blood clot in the pericardium compressing the heart is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is one of the schematic diagrams of a drainage device with intrapericardial anticoagulant efficacy after cardiac surgery according to an embodiment of the present application;

[0025] Figure 2 for Figure 1 A magnified view of the structure at point A;

[0026] Figure 3 This is a second schematic diagram of the drainage device with intrapericardial anticoagulant efficacy after cardiac surgery according to an embodiment of the present application;

[0027] Figure 4 for Figure 3 A magnified view of the structure at B in the middle;

[0028] Figure 5 This is a side view of the assembled mounting portion, positioning post, and micro needle according to an embodiment of the present application;

[0029] Figure 6 This is a top view of the assembled mounting portion and positioning column according to an embodiment of the present application;

[0030] Figure 7 This is one of the cross-sectional views of the tube body described in the embodiment of the present application;

[0031] Figure 8 This is the second cross-sectional view of the tube body described in the embodiment of the present application.

[0032] Among them, 1. Tube body; 10. Insertion end; 11. Diversion channel; 111. Diversion port; 12. Drug supply channel; 121. Drug supply port; 13. Side hole; 14. Adsorption component; 15. Drainage bottle; 16. Drainage connector; 2. Positioning part; 21. Mounting part; 22. Micro needle; 23. Positioning column; 24. Connecting channel; 3. Drug supply part; 31. Drug storage part; 32. Driving part; 33. Controller. DETAILED DESCRIPTION

[0033] In order to more clearly understand the above-mentioned objectives, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present application, not all of the embodiments.

[0035] Reference Figures 1 to 8 As shown, an embodiment of the present application provides a drainage device with intrapericardial positioning and anticoagulant effect after cardiac surgery, comprising a tube body 1, a positioning portion 2 and a drug supply portion 3; one end of the tube body 1 is an insertion end 10 for placement into the pericardium, a drug supply channel 12 and a diversion channel 11 for pericardial liquid to pass through are formed in the tube body 1, the diversion channel 11 and the drug supply channel 12 are isolated from each other, and the drug supply portion 3 is connected to the drug supply channel 12 so that the drug supply portion 3 can drive the drug into the drug supply channel 12; the diversion channel 11 forms a diversion port 111 at the insertion end 10, and the drug supply channel 12 forms a drug supply port 121 at the insertion end 10, the positioning portion 2 is installed on the drug supply port 121, the positioning portion 2 is used to limit the blood clot in the pericardium, and a delivery channel connected to the drug supply channel 12 is formed in the positioning portion 2.

[0036] The operation of dissolving blood clots usually takes a long time, that is, it is necessary to continuously release anticoagulants into the blood clots in the pericardium. After the traditional drainage tube and drug catheter are placed in the pericardium, the interference of the heartbeat will cause the drainage tube and the drug catheter to shift in position, reducing the drug administration accuracy of the drug catheter and causing the position of the drainage tube to shift. The liquid after the blood clot is dissolved is difficult to enter the drainage tube smoothly, affecting the drainage effect of the drainage tube.

[0037] The drainage device with intrapericardial positioning and anticoagulant effect provided by the present application after cardiac surgery has a guide channel 11 and a drug supply channel 12 formed in the tube body 1. It only needs to place the insertion end 10 into the pericardium to realize the delivery of drugs into the pericardium and the discharge of pericardial fluid, avoiding the multiple operations of placing the drainage tube and the drug catheter in the pericardium respectively, reducing the multiple traumas of placing the drainage device with intrapericardial positioning and anticoagulant effect into the pericardium after cardiac surgery, and reducing the operational difficulty of drug administration; the positioning part 2 cooperates with the blood clot in the pericardium to limit the position, and the interference of the heartbeat will not cause the relative position of the tube body 1 and the blood clot to shift, and the drug supply part 3 can accurately and continuously deliver the drug to the blood clot through the drug supply channel 12 and the delivery channel; the relative position of the guide port 111 and the blood clot remains stable, so that the blood clot can smoothly enter the guide channel 11 after ablation; through the mutual cooperation of the tube body 1 and the positioning part 2, the therapeutic effect of the blood clot that compresses the heart in the pericardium is improved.

[0038] Specifically, the tube body 1 can be made of a flexible material, such as a flexible plastic or rubber tube. Of course, the tube body 1 can also be made of a hard plastic tube to make the tube body 1 less prone to bending. The interior of the tube body 1 is hollow, so that a connecting channel is formed inside the tube body 1. The connecting channel can form an opening at the insertion end 10 of the tube body 1. A septum can be optionally provided in the connecting channel. The septum extends along the extension direction of the tube body 1. The edge of the septum is connected to the inner wall of the connecting channel, so that the septum divides the connecting channel in the tube body 1 into two isolated chambers. The two chambers respectively form a diversion channel 11 and a drug supply channel 12. The septum also separates the opening of the insertion end 10 of the tube body 1 to form a diversion port 111 and a drug supply port 121.

[0039] The above-mentioned guide channel 11 can optionally form a discharge port on the side wall of the tube body 1 or at the end of the tube body 1 away from the insertion end 10, so that the liquid in the guide channel 11 can be discharged from the guide channel 11 through the discharge port. An opening communicating with the drug supply channel 12 can be optionally provided on the side wall of the tube body 1, and the drug supply part 3 can be connected to the opening through a hose, so that the drug supply part 3 can inject the drug into the drug supply channel 12 through the opening.

[0040] The insertion end 10 of the tube body 1 can be placed in the pericardium, and the liquid in the pericardium can enter the diversion channel 11 through the diversion port 111 to drain the liquid in the pericardium; when the insertion end 10 is in the pericardium, the drug supply port 121 is also in the pericardium, and the drug in the drug supply channel 12 can be released into the pericardium through the drug supply port 121.

[0041] The positioning portion 2 can be selected as a claw-shaped structure, and the claw-shaped structure is connected to the edge of the drug supply port 121 by bonding or ultrasonic welding to install the claw-shaped structure on the drug supply port 121, and the claw-shaped structure will not block the guide port 111, so that the liquid in the pericardium can smoothly pass through the guide port 111 into the guide channel 11. The blood clot in the pericardium compresses the heart, forming a semi-solid block structure. The claw-shaped structure can abut against one side edge of the blood clot, so that the relative position of the blood clot and the positioning portion 2 remains stable, so that the positioning portion 2 and the blood clot are limited and matched; the delivery channel extends to the claw of the claw-shaped structure, so that the medicine in the drug supply channel 12 is accurately delivered to the blood clot through the delivery channel, thereby realizing precise drug supply to the blood clot in the pericardium.

[0042] Of course, the positioning part 2 can also be selected as a flexible needle tube, and a base is formed at one end of the flexible needle tube. The base is connected to the edge of the drug supply port 121 by bonding or ultrasonic welding to install the flexible needle tube on the base; the interior of the flexible needle tube is hollow, and the channel inside the flexible needle tube serves as a delivery channel. The flexible needle tube can penetrate into the blood clot, so that the medicine in the drug supply channel 12 can be injected into the blood clot through the flexible needle tube, thereby realizing precise drug supply to the blood clot in the pericardium.

[0043] The drug supply portion 3 may optionally include an elastic expansion bladder and a flow valve. The expansion bladder can store liquid medicine, and contraction of the expansion bladder can drive the liquid medicine out of the expansion bladder. The expansion bladder is connected to the drug supply channel 12, and the flow valve is connected between the drug supply channel 12 and the expansion bladder. The flow valve can control the flow rate of the liquid medicine in the expansion bladder into the drug supply channel 12. Of course, the drug supply portion 3 may also be an electrically driven drug pump, and the flow rate of the liquid medicine entering the drug supply channel 12 can be controlled by controlling the output power of the drug pump.

[0044] When the drainage device with pericardial positioning and anticoagulation function after cardiac surgery provided by the embodiment of the present application is used, the diversion channel 11 of the tube body 1 is connected to the drainage bottle or the pump body for collecting tissue fluid, and the drug supply part 3 is connected to the drug supply channel 12. The insertion end 10 is placed in the pericardium, and the positioning part 2 is limitedly matched with the blood clot in the pericardium; the drug supply part 3 delivers anticoagulant liquid to the drug supply channel 12, and the liquid in the drug supply channel 12 is delivered to the blood clot through the delivery channel in the positioning part 2. The blood clot is dissolved under the action of the drug and forms a liquid. The dissolved blood clot and the tissue fluid in the pericardium enter the diversion channel 11 through the diversion port 111, thereby quickly dissolving the blood clot in the pericardium that compresses the heart and discharging the liquid out of the pericardium.

[0045] The drainage device provided in the present application has pericardial positioning and anticoagulant effect after cardiac surgery, including a tube body 1, a positioning part 2 and a drug supply part 3; one end of the tube body 1 is an insertion end 10 for inserting into the pericardium, and a drug supply channel 12 and a diversion channel 11 for the pericardial liquid to pass through are formed in the tube body 1, the diversion channel 11 and the drug supply channel 12 are isolated from each other, and the drug supply part 3 is connected with the drug supply channel 12 so that the drug supply part 3 can drive the drug into the drug supply channel 12; the diversion channel 11 forms a diversion port 111 at the insertion end 10, and the drug supply channel 12 forms a drug supply port 121 at the insertion end 10, and the positioning part 2 is installed on the drug supply port 121, and the positioning part 2 is used to cooperate with the blood clot in the pericardium to limit the position, and a delivery channel connected to the drug supply channel 12 is formed in the positioning part 2. The diversion channel 11 and the drug supply channel 12 are integrated into the tube body 1. The insertion end 10 is placed in the pericardium, so that the drainage device can deliver drugs to the pericardium and discharge the pericardial fluid out of the pericardium. There is no need to place multiple tubes in the pericardium, which reduces the multiple traumas of placing the drainage device in the pericardium and reduces the difficulty of drug administration. The positioning part 2 cooperates with the blood clot limiter to keep the relative positions of the delivery channel and the diversion channel 11 and the blood clot stable, so that the drainage device can accurately and continuously deliver drugs to the blood clot, and after the blood clot dissolves, it can smoothly enter the diversion channel 11. Through the mutual cooperation of the tube body 1 and the positioning part 2, the therapeutic effect of the blood clot that compresses the heart in the pericardium is improved.

[0046] Reference Figures 1 to 5 、 Figure 7 and Figure 8 As shown, in some embodiments, the positioning portion 2 includes a flexible needle structure connected to the drug supply port 121. The flexible needle structure is hollow and communicates with the drug supply channel 12. The flexible needle structure can penetrate the blood clot within the pericardium. In this configuration, the flexible needle structure penetrates the blood clot, maintaining a stable relative position between the flexible needle structure and the blood clot, allowing the drug solution to be stably injected into the blood clot. The diversion port 111 is adjacent to the flexible needle structure, facilitating the flow of dissolved blood clots into the diversion channel 11, thereby preventing the accumulation of dissolved blood clot liquid within the pericardium.

[0047] Specifically, the flexible needle structure can be made of flexible plastic or rubber that can bend and deform, so that the flexible needle structure can bend, which can prevent the flexible needle structure from puncturing the heart. The blood clot is a semi-solid structure, and the flexible needle structure encounters less resistance when piercing the blood clot, allowing the flexible needle structure to pierce the semi-solid blood clot. The flexible needle structure is hollow inside to form a channel, and the channel inside the flexible needle structure is the delivery channel. After the flexible needle structure pierces the blood clot, the drug solution is injected into the blood clot through the flexible needle structure, increasing the contact area between the drug solution and the blood clot and improving the efficiency of dissolving the blood clot.

[0048] Reference Figures 1 to 5 As shown, in some embodiments, the flexible needle structure includes a plurality of micro needles 22 and a mounting portion 21. The plurality of micro needles 22 are connected to one side of the mounting portion 21, and the other side of the mounting portion 21 is connected to the drug supply port 121. The interior of each micro needle 22 is hollow, so that each micro needle 22 is connected to the drug supply channel 12. In this arrangement, the plurality of micro needles 22 penetrate into the blood clot, which can improve the stability of the relative position between the tube body 1 and the blood clot; the drug liquid in the drug supply channel 12 can be released onto the blood clot through the plurality of micro needles 22, increasing the contact area between the drug liquid and the blood clot and the uniformity of the drug liquid distribution, thereby improving the efficiency of the drug liquid in dissolving the blood clot.

[0049] Specifically, the diameter of the micro needle 22 is 10 nm to 500 nm. The micro needle 22 can be selected as bionic MNs (Microneedles) containing silk fibroin. The micro needle 22 has nanoscale channels inside, and all channels inside the micro needle 22 are delivery channels.

[0050] The mounting portion 21 is a base structure for mounting a plurality of micro needles 22. The mounting portion 21 may be a plate structure, with through holes provided on the plate structure corresponding to the plurality of micro needles 22. The micro needles 22 are inserted into the through holes, and the plurality of micro needles 22 are all exposed on the same side of the plate structure, so that the plurality of micro needles 22 are connected to one side of the mounting portion 21 and can communicate with the drug supply channel 12. Of course, it is also possible to select a plate structure with a plurality of through holes, with the micro needles 22 formed on one side of the plate structure, and with the plurality of through holes on the plate base correspondingly communicating with the internal channels of the plurality of micro needles 22, so that the internal channels of the micro needles 22 are exposed on the side of the mounting portion 21 facing the drug supply port 121, so that after the mounting portion 21 is mounted on the drug supply port 121, each micro needle 22 can communicate with the drug supply channel 12.

[0051] Of course, the mounting portion 21 can also be selected as a ring structure, with multiple micro needles 22 arranged on one side of the ring structure, and multiple micro needles 22 are connected to each other near one end of the ring structure to form a needle group, and the micro needles 22 on the edge of the needle group are connected to the ring structure, so that the needle group is on the inner side of the ring structure, and the size of the ring structure is consistent with the size of the drug supply port 121, so that the ring structure can be connected to the edge of the drug supply port 121, so that multiple micro needles 22 can be set on the drug supply port 121, and each micro needle 22 is connected to the drug supply channel 12.

[0052] The above-mentioned micro needles 22 are small in size, so that the micro needles 22 can be arranged in a matrix on the mounting portion 21. Multiple micro needles 22 can release the liquid medicine in the drug supply channel 12 into the blood clot. Multiple micro needles 22 can increase the area of ​​the blood clot that receives the liquid medicine and improve the efficiency of dissolving the blood clot.

[0053] Reference Figures 3 to 8 As shown, in some embodiments, the positioning portion 2 further includes a marker post 23, which is disposed on the mounting portion 21 and extends in a direction away from the drug supply channel 12. A connecting channel 24 is formed within the marker post 23 and communicates with the drug supply channel 12. A portion of the microneedles 22 is disposed on the marker post 23 and communicates with the connecting channel 24. At least a portion of the marker post 23 is capable of blocking X-rays for visualization in X-ray images. This configuration allows the marker post 23 to be visualized in X-ray images, allowing the position of the positioning portion 2 within the pericardium to be determined under X-ray images. Consequently, when the tube body 1 is placed within the pericardium, the microneedles 22 can be accurately inserted into the blood clot using X-ray images.

[0054] Specifically, X-rays are used in medicine to penetrate the human body to form X-ray images. However, X-rays have difficulty penetrating tightly structured objects, such as lead or radiotherapy gold markers (metal markers can be gold, silver, or other materials). Therefore, tightly structured objects appear with clear edges on the X-ray image, allowing staff to accurately identify the object on the X-ray image.

[0055] Marker post 23 can be made of metal to prevent X-rays from penetrating it, thereby making it clearly distinguishable from other parts in X-ray images. Alternatively, marker post 23 can be made of the same material as tube body 1, with a lead wire embedded within the sidewall of marker post 23 to block X-ray penetration, leaving a clear image on X-rays. Marker post 23 is visualized in X-ray images, facilitating the determination of the position of positioning portion 2 within the pericardium and enabling microneedle 22 to accurately penetrate a blood clot within the pericardium.

[0056] A connecting channel 24 is provided inside the above-mentioned marking column 23. When the mounting portion 21 is a plate structure, a through hole corresponding to the connecting channel 24 is provided on the mounting portion 21, so that the connecting channel 24 is connected to the through hole, so that the connecting channel 24 is connected to the medicine supply channel 12.

[0057] A portion of the microneedles 22 can be positioned on one side of the mounting portion 21, away from the marking post 23, while another portion of the microneedles 22 is positioned on the end of the marking post 23 facing away from the mounting portion 21. The area on the side of the mounting portion 21 facing away from the drug supply channel 12, outside the marking post 23, is designated as a first area. The length of the microneedles 22 on the marking post 23 is shorter than that of the microneedles 22 in the first area, ensuring that all microneedles 22 on the mounting portion 21 are at equal distances from the end away from the mounting portion 21, thereby enabling all microneedles 22 to penetrate the blood clot. The drug solution in the drug supply channel 12 is injected into the blood clot through the connecting channel 24 and the microneedles 22 on the marking post 23. The drug solution in the drug supply channel 12 can also be injected into the blood clot through the microneedles 22 in the first area.

[0058] Of course, it is also possible to choose to provide a marking column 23 on one side of the mounting portion 21, and a micro needle 22 on the marking column 23, and no micro needle 22 is provided at the rest of the mounting portion 21, that is, all the micro needles 22 are provided on the marking column 23, so that the medicine in the medicine supply channel 12 is injected into the blood clot through the connecting channel 24 and the micro needle 22.

[0059] When the mounting portion 21 is an annular structure, the marking column 23 can be selected to be set on the inner side of the annular structure and connected to the inner wall of the annular structure. The micro needles 22 outside the marking column 23 are connected to each other, and the micro needles 22 close to the marking column 23 are connected to the side wall of the marking column 23, so that multiple micro needles 22 and marking columns 23 are finally connected to the inner side of the annular structure; the channels inside the multiple micro needles 22 are exposed on the inner side of the annular structure, and the connecting channel 24 of the marking column 23 is exposed on the inner side of the annular structure, so that after the annular structure is connected to the drug supply port 121, the connecting channel 24 can be connected to the drug supply channel 12.

[0060] Reference Figures 3 to 8 As shown, in some embodiments, there are multiple marker posts 23, which are spaced apart in a direction around the center point of the mounting portion 21. Each marker post 23 is provided with a microneedle 22. This arrangement allows the multiple marker posts 23 to be visualized in X-rays, allowing the tube body 1 to be placed within the pericardium. The multiple marker posts 23 can more accurately determine the position of the positioning portion 2 within the pericardium, thereby improving the accuracy of inserting the multiple microneedles 22 into the blood clot.

[0061] Specifically, the number of marking columns 23 can be selected to be four, and the four marking columns 23 are arranged at equal intervals along the direction around the center of the mounting portion 21. In the direction around the center point of the mounting portion 21, the line connecting each two adjacent marking columns 23 and the center point of the mounting portion 21 is perpendicular to each other.

[0062] Of course, the number of marking posts 23 can also be three, with the three marking posts 23 being evenly spaced along the direction around the center of the mounting portion 21. Alternatively, the number of marking posts 23 can be two, with the two marking posts 23 being evenly spaced along the direction around the center of the mounting portion 21. Of course, there is no limitation to other numbers of marking posts 23, as long as multiple marking posts 23 can be provided on the mounting portion 21.

[0063] Reference Figure 1 、 Figure 3 and Figure 8 As shown, in some embodiments, a drainage connector 16 is provided at one end of the tube body 1 away from the insertion end 10, and a drainage bottle 15 is provided on the outside of the tube body 1; the drainage connector 16 extends into the diversion channel 11, and the drainage bottle 15 and the drainage connector 16 are detachably connected so that the drainage bottle 15 is connected to the diversion channel 11 through the drainage connector 16.

[0064] With such a configuration, the drainage bottle 15 can be used to conveniently collect the liquid in the diversion channel 11 , and the drainage bottle 15 and the drainage connector 16 are detachably connected, which can improve the convenience of replacing the drainage bottle 15 .

[0065] Specifically, the drainage joint 16 can be selected as a cylindrical structure, and a through hole is set on the side wall of the tube body 1 away from the insertion end 10, and the through hole is connected to the diversion channel 11. The cylindrical structure is inserted into the through hole to connect the drainage joint 16 with the diversion channel 11.

[0066] The cylindrical structure of the drainage connector 16 can be optionally provided with threads, and the drainage bottle 15 is connected to the drainage connector 16 through a catheter. The end of the catheter connected to the drainage connector 16 is provided with threads, so that the catheter and the drainage connector 16 are threadedly connected, so that the drainage bottle 15 and the drainage connector 16 are detachably connected. Of course, the outer diameter of the catheter can also be selected to be consistent with the inner diameter of the cylindrical structure. After the catheter is inserted into the drainage connector 16, it fits and abuts against the inner wall of the cylindrical structure. The friction between the catheter and the cylindrical structure stably inserts the catheter into the cylindrical structure to complete the connection between the drainage bottle 15 and the drainage connector 16; when the force applied to the catheter is greater than the friction between the catheter and the cylindrical structure, the catheter is disengaged from the drainage connector 16, so that the drainage bottle 15 and the drainage connector 16 are separated.

[0067] The drainage bottle 15 is a common medical drainage bottle, which generally includes a connecting tube and a bottle body. The bottle body is provided with a one-way valve or sealing device. One end of the connecting tube is connected to the bottle body, and the other end is connected to the drainage connector 16, so that the bottle body is connected to the diversion channel 11. The liquid in the diversion channel 11 enters the drainage bottle 15, so that the drainage bottle 15 collects the liquid in the pericardium. Of course, the drainage bottle 15 can also be provided with a negative pressure device to make the air pressure in the drainage bottle 15 lower than the air pressure in the pericardium, so as to facilitate the drainage bottle 15 to collect the liquid in the diversion channel 11.

[0068] Reference Figure 1 、 Figure 3 、 Figure 7 and Figure 8 As shown, in some embodiments, the area of ​​the diversion port 111 is larger than the area of ​​the drug supply port 121. This configuration allows the diversion port 111 to increase the flow rate of liquid entering the diversion channel 11 and prevent the liquid in the pericardium from blocking the diversion port 111.

[0069] Specifically, the liquid in the pericardium enters the diversion channel 11 through the diversion port 111, and the drug supply port 121 is used to release the drug liquid into the pericardium. Usually, the flow rate of the drug liquid released into the pericardium is low, and a smaller drug supply port 121 can also meet the requirements of releasing the drug liquid. In order to discharge the liquid in the pericardium in time, the diversion port 111 needs to be larger in size to increase the flow rate of the liquid entering the diversion channel 11, and the larger area of ​​the diversion port 111 can also prevent the liquid in the pericardium from blocking the diversion port 111.

[0070] The inner diameter of the tube body 1 can be selected to be 10 mm to 11 mm, the length of the tube body 1 is 40 cm, and the inner diameter of the drug supply port 121 is 0.4 mm to 0.8 mm, so that the area of ​​the guide port 111 is larger than the area of ​​the drug supply port 121 .

[0071] Reference Figure 1 and Figure 3 As shown, in some embodiments, the drug supply unit 3 includes a drug storage unit 31, a driving member 32, and a controller 33. The drug storage unit 31 is used to store drugs and is connected to the drug supply channel 12. The driving member 32 is provided on the drug storage unit 31 and can drive the drugs in the drug storage unit 31 into the drug supply channel 12. The controller 33 is electrically connected to the driving member 32 and can control the flow rate of the drugs driven by the driving member 32 into the drug supply channel 12. This configuration enables the controller 33 to conveniently control the flow rate of the drugs entering the drug supply channel 12, so as to slowly release the drugs in the drug storage unit 31 into the pericardium.

[0072] Specifically, the drug reservoir 31 can be configured as a bottle, the driver 32 as a motor-driven pump, and the controller 33 as a chip or microcomputer. The drug reservoir 31 is connected to the pump, which in turn is connected to the drug supply passage 12 via a flexible tube. When the pump is activated, a negative pressure is created within the drug reservoir 31, allowing the drug within the drug reservoir 31 to pass through the pump and into the drug supply passage 12. The controller 33 is connected to the pump to control the power of the pump, thereby controlling the amount of liquid that can pass through the pump per unit time, thereby controlling the flow rate of the drug into the drug supply passage 12.

[0073] Of course, the driving member 32 can also be selected as an elastic sac, which is connected to the medicine storage part 31, and liquid medicine is put into the medicine storage part 31. The liquid medicine in the medicine storage part 31 can make the elastic sac expand, and the elastic force of the elastic sac drives the medicine into the medicine supply channel. A valve body is provided between the elastic sac and the medicine storage part 31, and the controller 33 can control the opening and closing amplitude of the valve body, thereby controlling the flow rate of the medicine from the medicine storage part 31 into the medicine supply channel 12.

[0074] Reference Figure 1 and Figure 3As shown, in some embodiments, a plurality of side holes 13 are formed on the side of the tube body 1. The plurality of side holes 13 are spaced apart along the extension direction of the tube body 1, and the plurality of side holes 13 are connected to the diversion channel 11. This arrangement allows the fluid in the pericardium to enter the diversion channel 11 through the side holes 13, thereby improving the efficiency of the fluid in the pericardium entering the diversion channel 11.

[0075] Specifically, the distance between one of the multiple side holes 13 that is farthest from the insertion end 10 and the insertion end 10 can be selected to be 1 / 3 or 1 / 2 of the length of the tube body 1. Since the insertion end 10 of the tube body 1 is placed in the pericardium, at least a portion of the tube body 1 needs to be exposed outside the pericardium to collect the liquid in the diversion channel 11 and the drug supply portion 3 to transport the drug to the drug supply channel 12. The function of the side hole 13 is to allow the liquid in the pericardium to flow into the diversion channel 11 through the side hole 13. Therefore, the side hole 13 is only required to be provided in the portion of the tube body 1 located inside the pericardium during use, to prevent the liquid in the diversion channel 11 from leaking into the body through the side hole 13 on the tube body 1 outside the pericardium when the side hole 13 is provided in the portion of the tube body 1 outside the pericardium. The side hole 13 is provided in a portion of the tube body 1 so that after the insertion end 10 of the tube body 1, the area of ​​the tube body 1 with the side hole 13 is inside the pericardium.

[0076] Reference Figure 1 and Figure 3 As shown, in some embodiments, the tube body 1 is a transparent tube with scale lines on the tube body 1. In this way, the scale lines on the tube body 1 make it easier for medical staff to confirm the size of the tube body 1 placed in the pericardium.

[0077] Specifically, the tube body 1 can be selected as a transparent flexible plastic tube or a transparent medical silicone rubber tube, which makes it convenient for medical personnel to observe the shape of the liquid in the tube body 1 and confirm whether the liquid has entered the diversion channel 11 of the tube body 1; the tube body 1 is provided with scale lines, and the scale lines are arranged from the insertion end 10 toward the end of the tube body 1 away from the insertion end 10.

[0078] Reference Figure 1 and Figure 3 As shown, in some embodiments, an adsorbent 14 is provided at one end of the tube body 1 away from the insertion end 10. With this arrangement, the adsorbent 14 can be adsorbed and connected to objects around the patient, and can help fix the tube body 1 when the drainage device is used for long-term blood clot dissolution and drainage.

[0079] Specifically, the adsorbent 14 can be a silicone suction cup structure or an adhesive pad, allowing the adsorbent 14 to be attached to the support of the operating table or other structural components in the ward. When the tube body 1 is placed in the pericardium for long-term blood clot dissolution and drainage, the adsorbent 14 serves to fix the position of the tube body 1. The adsorbent 14 can be connected to the end of the tube body 1 away from the insertion end 10 by adhesive bonding. Of course, the adsorbent 14 and the tube body 1 can also be integrated into a structure.

[0080] When the drainage device with intrapericardial anticoagulant effect provided in the embodiment of the present application is used, the drainage bottle 15 is connected to the drainage connector 16, and the drug storage part 31 is connected to the drug supply channel 12; the insertion end 10 of the tube body 1 is placed in the pericardium, and the micro needle 22 of the flexible needle structure is inserted into the blood clot, and the controller 33 controls the driving part 32 to input the medicine liquid in the drug storage part 31 into the drug supply channel 12, and the medicine liquid in the drug supply channel 12 is injected into the blood clot through multiple micro needles 22, so that the drug dissolves the blood clot; the liquid after the blood clot in the pericardium is dissolved enters the diversion channel 11 through the diversion port 111 and the side hole 13, and the liquid in the diversion channel 11 enters the drainage bottle 15.

[0081] The controller 33 controls the flow of the drug into the drug supply channel 12, so that the drug supply part 3 can continuously release the drug to the blood clot in the pericardium through the drug supply channel 12 and the micro needle 22 within 48 hours, and the diversion channel 11 can continuously discharge the fluid in the pericardium through the diversion channel 11.

[0082] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0083] The foregoing description is intended only to provide specific embodiments of the present application, which will enable those skilled in the art to understand and implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments described herein, but is intended to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A drainage device with intrapericardial anticoagulant efficacy after cardiac surgery, characterized in that: It comprises a tube body (1), a positioning portion (2) and a medicine supply portion (3); One end of the tube body (1) is an insertion end (10) for placement into the pericardium. A drug supply channel (12) and a diversion channel (11) for the pericardial fluid to pass through are formed in the tube body (1). The diversion channel (11) and the drug supply channel (12) are isolated from each other. The drug supply portion (3) is in communication with the drug supply channel (12) so that the drug supply portion (3) can drive the drug into the drug supply channel (12). The diversion channel (11) forms a diversion port (111) at the insertion end (10), the drug supply channel (12) forms a drug supply port (121) at the insertion end (10), the positioning portion (2) is mounted on the drug supply port (121), the positioning portion (2) is used to limit the blood clot in the pericardium, and a delivery channel connected to the drug supply channel (12) is formed in the positioning portion (2); The positioning portion (2) includes a flexible needle structure, the flexible needle structure is connected to the drug supply port (121), the flexible needle structure is communicated with the drug supply channel (12), and the flexible needle structure can pierce the blood clot in the pericardium; The flexible needle structure comprises a plurality of micro needles (22) and a mounting portion (21), wherein the plurality of micro needles (22) are connected to one side of the mounting portion (21), and the other side of the mounting portion (21) is connected to the drug supply port (121), and each micro needle (22) is hollow inside and communicates with the drug supply channel (12).

2. The drainage device with intrapericardial anticoagulant efficacy after cardiac surgery according to claim 1, characterized in that: The positioning portion (2) further comprises a marking column (23), the marking column (23) being arranged on the mounting portion (21) and extending in a direction away from the drug supply channel (12), a connecting channel (24) communicating with the drug supply channel (12) being formed in the marking column (23), and at least a portion of the micro needles (22) being arranged on the marking column (23) and communicating with the connecting channel (24); At least a portion of the marking column (23) can block X-ray penetration so as to be displayed in an X-ray image.

3. The drainage device with intrapericardial anticoagulation function after cardiac surgery according to claim 2, characterized in that: There are a plurality of marking posts (23), and the plurality of marking posts (23) are spaced apart in a direction around the center point of the mounting portion (21), and each marking post (23) is provided with the micro needle head (22).

4. The drainage device with intrapericardial anticoagulant efficacy after cardiac surgery according to claim 1 or 2, characterized in that: The area of ​​the diversion port (111) is larger than the area of ​​the medicine supply port (121).

5. The drainage device with intrapericardial anticoagulation function after cardiac surgery according to claim 1 or 2, characterized in that: A drainage joint (16) is provided at one end of the tube body (1) away from the insertion end (10), and a drainage bottle (15) is provided on the outside of the tube body (1); The drainage joint (16) extends into the diversion channel (11), and the drainage bottle (15) is detachably connected to the drainage joint (16), so that the drainage bottle (15) is connected to the diversion channel (11) through the drainage joint (16).

6. The drainage device with intrapericardial anticoagulation function after cardiac surgery according to claim 1 or 2, characterized in that: The drug supply portion (3) includes a drug storage portion (31), a driving member (32) and a controller (33). The drug storage portion (31) is used to store drugs. The drug storage portion (31) is communicated with the drug supply channel (12). The driving member (32) is provided on the drug storage portion (31). The driving member (32) can drive the drugs in the drug storage portion (31) to enter the drug supply channel (12). The controller (33) is electrically connected to the driving member (32). The controller (33) can control the flow rate of the drugs driven by the driving member (32) to enter the drug supply channel (12).

7. The drainage device with intrapericardial anticoagulation function after cardiac surgery according to claim 1 or 2, characterized in that: A plurality of side holes (13) are formed on the side surface of the tube body (1), and the plurality of side holes (13) are arranged at intervals along the extension direction of the tube body (1), and the plurality of side holes (13) are all in communication with the guide channel (11).

8. The drainage device with intrapericardial anticoagulation function after cardiac surgery according to claim 1 or 2, characterized in that: An adsorption member (14) is provided at one end of the tube body (1) away from the insertion end (10); And / or, the tube body (1) is provided with scale lines.

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