Postoperative nursing drainage device for cardiac surgery

Abstract

The invention discloses a cardiac surgery postoperative care drainage device which comprises a drainage device, a knee joint leg sleeve and an external hanging support, the drainage device is a closed drainage bottle, scales are arranged outside the drainage device, an openable top cover is arranged on the drainage device, a long tube, a short tube and a sealing sleeve are integrated on the top cover, and the sealing sleeve is used for shielding the long tube and the short tube to prevent infection of the long tube and the short tube. The long tube is connected with the cardiothoracic drainage tube; the knee joint leg sleeve is worn at a leg joint of a user and used for restraining a cardiothoracic drainage tube when the user walks, the knee joint leg sleeve comprises a movable support, an upper leg sleeve, a lower leg sleeve and a tube clamp, and the upper leg sleeve and the lower leg sleeve are consistent in structure and connected to the upper end and the lower end of the movable support respectively. The drainage device can be externally hung on the bed frame at the bottom of the sickbed when a user lies in the sickbed so as to keep the drainage bottle stable, and can be worn at the knee joint of the user when the user gets out of the bed and moves, so that the drainage bottle is guaranteed to be lower than the knee, and the drainage device can be used in the bed lying environment and the moving environment of the user.

Description

Technical Field

[0001] The invention relates to the field of postoperative care for cardiac surgery, and in particular to a drainage device for postoperative care for cardiac surgery. Background Art

[0002] Cardiothoracic surgery also includes diseases of cardiac surgery and general thoracic surgery. Cardiothoracic surgery studies cardiac and large vessel trauma, pericardial disease, congenital heart disease, acquired valvular heart disease, ischemic heart disease, cardiac tumors, large vessel disease, interventional treatment techniques, surgical treatment of arrhythmias, cardiac pacing and implantable defibrillators, dynamic cardiomyoplasty, heart, lung and heart-lung transplantation, etc. After some cardiac surgeries, the pleural cavity and the fluid therein are not in a static state. The shape and pressure of the pleural cavity change greatly in each respiratory cycle, causing the fluid in the pleural cavity to continue to filter out. These effusions will accumulate in the chest cavity and heart. If these effusions are not completely discharged, it will cause surgical site infection. At this time, it needs to be drained through a drainage device.

[0003] Currently, the most common drainage devices are closed drainage bottles, which have a high application rate due to their simple structure and convenient maintenance. The closed drainage bottles in the prior art are as follows:

[0004] 1) Publication No. CN101745154A discloses a chest closed drainage bottle. In this technical application, it includes a bottle body, a sealing cover, a drainage tube, and a handle arranged on the bottle body. The handle includes a pair of lifting rods with one end movably arranged on opposite sides of the bottle body, and a connector connected to the other end of at least one of the pair of lifting rods. The other ends of the pair of lifting rods are detachably connected through the connector. The handle has a first working state and a second working state. When in the first working state, the pair of lifting rods are connected above the sealing cover; when in the second working state, the pair of lifting rods are separated, and the drainage bottle can be connected to a device outside it through the connector. The handle structure of the present invention has the dual functions of a handle and a connector, which simplifies the structure of the chest closed drainage bottle, reduces the production cost, and can avoid the interference or cumbersome problems caused by setting both a handle and a connector on the same bottle body.

[0005] 2) Publication No. CN114632201A discloses a movable chest closed drainage bottle with a protective bracket. In this technical application, it includes a bracket assembly and a negative pressure bottle; the bracket assembly: includes a sleeve, a base and casters, the bottom end of the sleeve is fixedly connected to the middle part of the base, the casters are respectively arranged at the bottom end of the base, and the outer arc surface of the sleeve is fixedly connected to a protective frame; the negative pressure bottle: is placed inside the protective frame, a fixed plug is fixedly installed on the upper end of the bottle mouth of the negative pressure bottle, a water seal bottle is fixedly connected inside the fixed plug, a drainage tube and a U-shaped tube are respectively inserted in the middle of the top cover of the water seal bottle, the lower end of the drainage tube extends to the lower end of the inner part of the water seal bottle, the right end of the U-shaped tube passes through the through hole arranged inside the fixed plug and extends to the interior of the negative pressure bottle, and the interior of the negative pressure bottle is respectively provided with a negative pressure display assembly and a suction assembly. The movable chest closed drainage bottle with a protective bracket protects the negative pressure bottle, is easy to carry, has intuitive display, and is highly practical.

[0006] 3) Publication No. CN116983491A discloses a closed chest drainage bottle. In this technical application, it includes a collection bottle, a water seal bottle and a pressure measuring bottle. A liquid level alarm component and a fan component are arranged in the collection bottle. A connecting pipe is arranged at the top of the collection bottle, and a dredging component is arranged in the connecting pipe. The liquid level alarm component is hung in the collection bottle. The fan component is arranged below the bottom end of the connecting pipe extending into the collection bottle. The dredging component includes a booster, a first opening and closing valve, a second opening and closing valve, a third opening and closing valve and a side pipe. The first opening and closing valve and the second opening and closing valve are arranged at the top and bottom of the connecting pipe. The booster is arranged on the outside of the top of the connecting pipe, and the side pipe is arranged on the outside of the bottom of the connecting pipe. The third opening and closing valve is arranged in the side pipe. This application realizes the ability to monitor the amount of pleural fluid in the collection bottle, timely determine the tendency of active bleeding, and issue an early warning when the amount of pleural fluid in the collection bottle is about to be full. When the pipeline is blocked during the drainage process, it can automatically dredge, without the need for extubation, thereby reducing the pain of the patient.

[0007] The above-mentioned prior arts are all about modifying the drainage bottle to make it easy to carry, avoid interference in use, and automatically clear the blockage. However, the above-mentioned arts do not take into account the installation and movement problems of the drainage bottle during use. For example, a conventional drainage bottle is generally placed on the lower side of the bed frame, and the patient can easily kick it when getting out of bed to change shoes.

[0008] Regarding how to install the drainage bottle, 4) Publication No. CN111068128A proposes a chest closed drainage bottle fixing frame. In this technical application, it includes a cylinder, a restraining belt is arranged inside the cylinder, and the restraining belt is a flat closed-loop belt body. One end of the restraining belt passes through the restraining belt adjustment hole on the cylinder and is fixed to the rotating shaft. The two ends of the rotating shaft are installed on the rotating shaft seat body through a bearing structure. The rotating shaft is located on the outside of the cylinder; the rotating shaft is provided with a torsion spring at the connection position with the rotating shaft seat body; the bottom of the cylinder is provided with a matrix-distributed plug-in rod. In view of the above technical scheme, the present invention can adapt to the fixing of the drainage bottle body in different application scenarios, and can improve the flexibility and convenience of the drainage bottle placement frame.

[0009] The above-mentioned prior art 4 can stably install and fix the closed drainage bottle by setting up structures such as brackets, but this structure is large in size and is only suitable for positioning and installing on a bed frame. When the user gets out of bed to go to the toilet, he still needs to hold the closed drainage bottle. However, due to the particularity of the closed drainage bottle, it cannot be carried above the knee position, so this is also a problem that the prior art cannot solve.

[0010] Based on this background, the present invention proposes a drainage device that can be hung on the bottom bed frame of a hospital bed when the user is lying on the bed to keep the drainage bottle stable, and can be worn on the user's knee joint when the user gets out of bed to ensure that the drainage bottle is below the knee. Summary of the invention

[0011] The purpose of the present invention is to provide a drainage device for postoperative care of cardiac surgery. The drainage device can be hung on the bottom bed frame of the bed when the user is lying on the bed to keep the drainage bottle stable, and can be worn on the user's knee joint when the user gets out of bed and moves, so as to ensure that the drainage bottle is lower than the knee, allowing for the use of the user in both bedridden and mobile environments.

[0012] To achieve the above object, the present invention provides the following technical solution: a drainage device for postoperative care of cardiac surgery, comprising:

[0013] The drainage device is a closed drainage bottle structure, with scales set on the outside of the drainage device and an openable top cover on which a long tube, a short tube, and a sealing sleeve for covering the long tube and the short tube to prevent infection are integrated, wherein the long tube is connected to the cardiothoracic drainage tube;

[0014] The knee joint leg sleeve is worn at the user's leg joint and is used to restrain the cardiothoracic drainage tube when the user walks. The knee joint leg sleeve includes a movable support, an upper leg sleeve, a lower leg sleeve and a tube clamp, wherein the upper leg sleeve and the lower leg sleeve have the same structure and are respectively connected to the upper end and the lower end of the movable support;

[0015] The external bracket includes a telescopic bracket and a snap-on structure. The external bracket is connected to the knee joint leg sleeve through the telescopic bracket. The external bracket is fixed to the bottom railing of the bed through the telescopic bracket and the snap-on structure. The telescopic bracket includes a front frame, a rear frame, a telescopic support plate, a side folding plate 1 and a side folding plate 2. The front frame and the rear frame have the same structure and are mirror-imaged. Mounting grooves and snap-on grooves are provided on the top and bottom of the front frame and the rear frame.

[0016] Preferably, the upper and lower ends of the bracket are respectively connected to the front strap and the rear strap, and the front strap and the rear strap are Velcro straps or lock straps.

[0017] Preferably, the upper leg cuff and the lower leg cuff include a bracket, a front strap and a rear strap. The bracket is U-shaped, and the brackets on the upper leg cuff and the lower leg cuff are mirror-imaged and offset up and down. A plurality of tube clamps for guiding and restraining the cardiothoracic drainage tube are arranged outside the bracket of the upper leg cuff. The tube clamps prevent the tube from tripping the user when walking, and a connecting buckle is arranged outside the bracket of the lower leg cuff.

[0018] Preferably, there are two groups of slots and they are distributed on both sides of the top and bottom end surfaces of the front frame and the rear frame, the installation slot is located between the two slots, and the connecting buckle arranged outside the lower leg cover is connected to the installation slot through bolts and nuts. The telescopic support plate, the side folding plate 1 and the side folding plate 2 are all connected between the front frame and the rear frame, wherein the telescopic support plate is a telescopic structure and it is connected to the bottom of the front frame and the rear frame, and the side folding plate 1 and the side folding plate 2 are two folding plates hinged by elastic hinges.

[0019] Preferably, the two side ends of side folding plate 1 and side folding plate 2 are respectively connected to the side surfaces of the front frame and the rear frame, and side folding plate 1, side folding plate 2 and the telescopic support plate are vertically arranged, and when the front frame is close to or far away from the rear frame, side folding plate 1, side folding plate 2 and the telescopic support plate are contracted or extended.

[0020] Preferably, the buckle structure is installed in the slots at the top and bottom of the front frame and the rear frame, and the buckle structure includes an elastic claw and a lock, wherein the elastic claw extends into the slot and is fixed, and the upper end of the elastic claw is connected to the lock, and the lock is connected to the bottom railing of the bed.

[0021] Preferably, the device is used as follows when the user moves: before the user gets out of bed, the user uses the front strap and the rear strap to wear the knee leg sleeve on the leg joint, then unfolds the telescopic bracket, the telescopic bracket encloses a rectangular area, the drainage bottle is placed on the inside of the telescopic bracket, and the pipeline is constrained by the tube clamp on the knee leg sleeve. At this time, the user can walk slowly, and the drainage bottle is always below the knee.

[0022] Preferably, the device is used when the user is in bed as follows: before the user goes to bed, first unfold the telescopic bracket, install the snap structure on the telescopic bracket through the elastic claw, then use the lock to connect it to the bottom railing of the bed, and constrain the drainage tube with the tube clamp to complete the quick installation. When the user gets up, just unlock the lock and connect it to the installation slot on the telescopic bracket through the connecting buckle.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The drainage device of the present invention can be hung on the bottom bed frame of the bed when the user is lying on the bed to keep the drainage bottle stable, and can be worn on the user's knee joint when the user gets out of bed and moves, so as to ensure that the drainage bottle is lower than the knee, taking into account the use of the user in both bedridden and mobile environments.

[0025] 2. The external bracket of the present invention adopts a foldable structure, which is small in size when folded and can firmly fix the drain on the inside when extended.

[0026] 3. The knee joint leg sleeve of the present invention is equipped with a tube clamp, which can guide and constrain the cardiothoracic drainage tube to prevent the tube from tripping the user when walking. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the present invention when worn on a user's leg joint;

[0028] Figure 2 It is a schematic diagram of the structure of the flow guider and the external bracket in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the flow diverter in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of a knee joint leg sleeve in an embodiment of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the external bracket in an embodiment of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the buckle structure in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the present invention when it is configured on the side of a bed.

[0034] In the figure:

[0035] 1. Drainage device; 101. Top cover; 102. Long tube; 103. Short tube; 104. Sealing sleeve;

[0036] 2. Knee joint leg sleeve; 201. Movable support; 202. Upper leg sleeve; 203. Lower leg sleeve; 204. Pipe clamp; 205. Connecting buckle; 206. Front strap; 207. Rear strap;

[0037] 3. External bracket; 301. Front frame; 302. Rear frame; 303. Telescopic support plate; 304. Side folding plate 1; 305. Side folding plate 2; 306. Elastic claw; 307. Lock. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The present invention provides a technical solution: a drainage device for postoperative care of cardiac surgery. The drainage device can be hung on the bottom bed frame of the hospital bed when the user is lying on the bed to keep the drainage bottle stable, and can be worn on the user's knee joint when the user gets out of bed and moves, so as to ensure that the drainage bottle is lower than the knee, allowing for the use of the user in both bedridden and mobile environments.

[0042] See also Figure 1 A drainage device for postoperative care in cardiac surgery includes a drainage device 1, a knee joint leg sleeve 2 and an external bracket 3.

[0043] See also Figure 2 , Figure 3In this embodiment, the drain device 1 is a closed drainage bottle structure, a scale is set on the outside of the drain device 1, and an openable top cover 101 is set on the drain device 1. The top cover 101 is integrated with a long tube 102, a short tube 103, and a sealing sleeve 104 for covering the long tube 102 and the short tube 103 to prevent infection, wherein the long tube 102 is connected to the cardiothoracic drainage tube.

[0044] See also Figure 4 In this embodiment, the knee joint leg sleeve 2 is worn at the user's leg joint and is used to restrain the cardiothoracic drainage tube when the user walks. The knee joint leg sleeve 2 includes a movable support 201, an upper leg sleeve 202, a lower leg sleeve 203 and a tube clamp 204, wherein the upper leg sleeve 202 and the lower leg sleeve 203 have the same structure and are respectively connected to the upper end and the lower end of the movable support 201.

[0045] In this embodiment, the upper leg cuff 202 and the lower leg cuff 203 include a bracket, a front strap 206 and a rear strap 207. The bracket is U-shaped, and the brackets on the upper leg cuff 202 and the lower leg cuff 203 are mirror-imaged and offset up and down. A plurality of tube clamps 204 for guiding and restraining the cardiothoracic drainage tube are arranged outside the bracket of the upper leg cuff 202. The tube clamps 204 prevent the tube from tripping the user when walking. A connecting buckle 205 is arranged outside the bracket of the lower leg cuff 203.

[0046] In this embodiment, the upper and lower ends of the bracket are respectively connected to the front strap 206 and the rear strap 207, and the front strap 206 and the rear strap 207 are Velcro straps or buckle 307 straps.

[0047] See also Figure 2 , Figure 5 In this embodiment, the external bracket 3 includes a telescopic bracket and a buckle structure. The external bracket 3 is connected to the knee joint leg sleeve 2 through the telescopic bracket. The external bracket 3 is fixed to the bottom railing of the bed through the telescopic bracket and the buckle structure. The telescopic bracket includes a front frame 301, a rear frame 302, a telescopic support plate 303, a side folding plate 1 304 and a side folding plate 2 305. The front frame 301 and the rear frame 302 have the same structure and are mirror-imaged. The front frame 301 and the rear frame 302 are both provided with installation grooves and clamping grooves at the top and bottom.

[0048] In this embodiment, two groups of slots are provided and are distributed on both sides of the top and bottom end surfaces of the front frame 301 and the rear frame 302. The installation slot is located between the two slots, and the connecting buckle 205 arranged outside the lower leg cover 203 is connected to the installation slot through bolts and nuts.

[0049] In this embodiment, the telescopic support plate 303, the side folding plate 1 304 and the side folding plate 2 305 are all connected between the front frame 301 and the rear frame 302, wherein the telescopic support plate 303 is a telescopic structure and is connected to the bottom of the front frame 301 and the rear frame 302, the side folding plate 1 304 and the side folding plate 2 305 are two folding plates hinged by elastic hinges, the side folding plate 1 304 and the side folding plate 2 305 can be quickly unfolded using the elastic hinges, and at the same time, the elasticity can be used to constrain the drainage bottle when unfolded to ensure that the drainage bottle is fixed and stable.

[0050] In this embodiment, both side ends of the side folding plate 1 304 and the side folding plate 2 305 are respectively connected to the side surfaces of the front frame 301 and the rear frame 302, and the side folding plate 1 304 and the side folding plate 2 305 are vertically arranged with the telescopic support plate 303. When the front frame 301 is close to or away from the rear frame 302, the side folding plate 1 304, the side folding plate 2 305 and the telescopic support plate 303 are contracted or extended.

[0051] In this embodiment, the external bracket 3 adopts a foldable structure. It has a small volume in the folded state and can firmly fix the drain device 1 on the inside in the extended state.

[0052] See also Figure 2 , Figure 5 , Figure 6 In this embodiment, the buckle structure is installed in the slots at the top and bottom of the front frame 301 and the rear frame 302. The buckle structure includes an elastic claw 306 and a lock 307, wherein the elastic claw 306 extends into the slot and is fixed, and the upper end of the elastic claw 306 is connected to the lock 307, and the lock 307 is connected to the railing at the bottom of the bed (see Figure 7 shown).

[0053] The device is used as follows when the user moves: before the user gets out of bed, the user uses the front strap 206 and the rear strap 207 to wear the knee joint leg sleeve 2 on the leg joint, then unfolds the telescopic bracket, the telescopic bracket surrounds a rectangular area, the drainage bottle is placed on the inside of the telescopic bracket, and the pipeline is constrained by the tube clamp 204 on the knee joint leg sleeve 2. At this time, the user can walk slowly, and the drainage bottle is always below the knee position.

[0054] The device is used in the following manner when the user is in bed: before the user goes to bed, the telescopic bracket is first unfolded, and the buckle structure is installed on the telescopic bracket through the elastic claw 306, and then the lock buckle 307 is used to connect it to the bottom railing of the bed, and the drainage tube is constrained by the tube clamp 204 to complete the quick installation. When the user gets up, it is only necessary to unlock the lock buckle 307 and connect it to the installation slot on the telescopic bracket through the connecting buckle 205.

[0055] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0057] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage device for postoperative care of cardiac surgery, characterized in that: include: The drainer (1) is a closed drainage bottle structure. The drainer (1) is provided with scales on the outside. The drainer (1) is provided with an openable top cover (101). The top cover (101) is integrated with a long tube (102), a short tube (103), and a sealing sleeve (104) for covering the long tube (102) and the short tube (103) to prevent infection. The long tube (102) is connected to a cardiothoracic drainage tube. A knee joint leg sleeve (2) is worn at the leg joint of a user and is used to restrain a cardiothoracic drainage tube when the user walks. The knee joint leg sleeve (2) comprises a movable support (201), an upper leg sleeve (202), a lower leg sleeve (203) and a tube clamp (204), wherein the upper leg sleeve (202) and the lower leg sleeve (203) have the same structure and are respectively connected to the upper end and the lower end of the movable support (201); The external bracket (3) comprises a telescopic bracket and a buckle structure, the external bracket (3) is connected to the knee joint leg sleeve (2) via the telescopic bracket, the external bracket (3) is fixed to the railing at the bottom of the bed via the telescopic bracket and the buckle structure, the telescopic bracket comprises a front frame body (301), a rear frame body (302), a telescopic support plate (303), a side folding plate 1 (304) and a side folding plate 2 (305), wherein the front frame body (301) and the rear frame body (302) have the same structure and are arranged in a mirror image, and the top and bottom of the front frame body (301) and the rear frame body (302) are both provided with installation grooves and buckle grooves.

2. A drainage device for postoperative care of cardiac surgery according to claim 1, characterized in that: The upper leg cover (202) and the lower leg cover (203) comprise a bracket, a front strap (206) and a rear strap (207); the bracket is arranged in a U shape; and the brackets on the upper leg cover (202) and the lower leg cover (203) are arranged in an upper and lower offset mirror image.

3. A drainage device for postoperative care of cardiac surgery according to claim 2, characterized in that: The upper and lower ends of the bracket are respectively connected to a front strap (206) and a rear strap (207), and the front strap (206) and the rear strap (207) are Velcro straps or lock buckle (307) straps.

4. A drainage device for postoperative care of cardiac surgery according to claim 2, characterized in that: A plurality of tube clamps (204) for guiding and restraining the cardiothoracic drainage tube are arranged outside the bracket of the upper leg sleeve (202), and a connecting buckle (205) is arranged outside the bracket of the lower leg sleeve (203).

5. A drainage device for postoperative care of cardiac surgery according to claim 1, characterized in that: The slots are provided in two groups and are distributed on both sides of the top and bottom end surfaces of the front frame (301) and the rear frame (302). The mounting slot is located between the two slots. The connecting buckle (205) provided outside the lower leg cover (203) is connected to the mounting slot via bolts and nuts.

6. A drainage device for postoperative care of cardiac surgery according to claim 1, characterized in that: The telescopic support plate (303), the side folding plate 1 (304) and the side folding plate 2 (305) are all connected between the front frame (301) and the rear frame (302), wherein the telescopic support plate (303) is a telescopic structure and is connected to the bottom of the front frame (301) and the rear frame (302), and the side folding plate 1 (304) and the side folding plate 2 (305) are two folding plates hinged by elastic hinges.

7. A drainage device for postoperative care of cardiac surgery according to claim 1, characterized in that: The two side ends of the side folding plate 1 (304) and the side folding plate 2 (305) are respectively connected to the side surfaces of the front frame (301) and the rear frame (302); the side folding plate 1 (304), the side folding plate 2 (305) and the telescopic support plate (303) are arranged vertically; when the front frame (301) is in a state of approaching or moving away from the rear frame (302), the side folding plate 1 (304), the side folding plate 2 (305) and the telescopic support plate (303) are in a state of contraction or extension.

8. A drainage device for postoperative care of cardiac surgery according to claim 1, characterized in that: The buckle structure is installed in the slots at the top and bottom of the front frame (301) and the rear frame (302), and the buckle structure includes an elastic claw (306) and a lock buckle (307), wherein the elastic claw (306) extends into the slot and is fixed, and the upper end of the elastic claw (306) is connected to the lock buckle (307), and the lock buckle (307) is connected to the railing at the bottom of the bed.

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