Self-dredging type drainage device

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a self-dredging drainage apparatus which comprises a drainage mechanism, a trigger mechanism and a dredging mechanism, the drainage mechanism comprises a negative pressure generation assembly electrically connected with a control system and a drainage tube connected with the negative pressure generation assembly, the negative pressure generation assembly has a first state under normal suction force and a second state after the suction force is increased; when blockage occurs in the drainage tube, the trigger mechanism automatically starts to work, the negative pressure generation assembly is triggered to be switched from the first state to the second state, and after blockage in the drainage tube is finished, the trigger mechanism triggers the negative pressure generation assembly to be switched back to the first state from the second state; when the negative pressure generating assembly is switched to the second state, the dredging mechanism is automatically driven to start to work, blood clots blocked in the drainage tube are smashed, and the problem that in the drainage process, the drainage tube cannot be automatically dredged after being blocked by the blood clots, and use limitation exists is solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a self-draining drain. Background Art

[0002] Surgical drainage devices usually consist of an implanted catheter system and an external drainage system, which are used to guide and drain fluid and blood accumulation in the body. Their main function is to help relieve body pressure, drain abnormal fluid, blood or other substances to maintain normal body functions. These devices can be used to treat a variety of surgical diseases.

[0003] At present, in the process of using a drain to drain the accumulated blood in surgical operations, negative pressure suction drainage is mainly used. When the drainage tube is blocked by a blood clot, the suction force is generally increased to suck out the blood clot, or the drainage tube is directly replaced. However, when the suction force is increased, at the moment the blood clot is sucked out, due to the sudden increase in suction, the end of the drainage tube that enters the liquid is likely to cause damage to the patient's body tissue. If the drainage tube is replaced directly, it is relatively time-consuming and increases the cost of treatment. It cannot be self-dredge during the drainage process, resulting in certain limitations in its use. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide a self-clearing drain, which replaces the traditional way of dealing with the blockage of the drainage tube by blood clots during use, thereby avoiding the problem that the drainage tube cannot be automatically cleared after being blocked by blood clots during the drainage process, which makes its use limited.

[0006] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions: A self-dredging drainage device, comprising: A drainage mechanism, comprising a negative pressure generating assembly electrically connected to the control system and a drainage tube connected to the negative pressure generating assembly, wherein the negative pressure generating assembly has a first state under normal suction and a second state after increasing the suction; a trigger mechanism mounted on the drainage tube, wherein when a blockage occurs in the drainage tube, the trigger mechanism automatically starts to work, triggering the negative pressure generating component to switch from the first state to the second state, and when the blockage in the drainage tube ends, the trigger mechanism triggers the negative pressure generating component to switch from the second state back to the first state; The dredging mechanism is installed on the drainage tube, wherein when the negative pressure generating component is switched to the second state, the dredging mechanism is automatically driven to start working to break up the blood clot blocking the drainage tube.

[0007] As a preferred solution of the self-draining drainer described in the present invention, the negative pressure generating assembly includes a support base and a negative pressure generator installed on the top of the support base; The drainage tube includes a first drainage tube connected to the negative pressure generator at one end and a second drainage tube used to extend into the patient's body.

[0008] As a preferred embodiment of the self-draining drain device described in the present invention, the trigger mechanism includes a first fixed tube installed at the end of the first guide tube away from the negative pressure generator and a trigger component installed on the first fixed tube and electrically connected to the control system.

[0009] As a preferred solution of the self-draining drainer described in the present invention, a through groove is provided on the inner wall of the first fixed tube, a connecting groove is provided on the inner wall of the through groove, a mounting plate is provided on the outer side wall of the first fixed tube, and a trigger switch electrically connected to the control system and a first elastic member are provided at the bottom of the mounting plate; The trigger assembly includes a rotating shaft rotatably installed in the connecting groove, a driving plate located on one side of the rotating shaft and extending into the first fixed tube, and a trigger plate located on the other side of the rotating shaft and corresponding to the trigger switch, and the top of the trigger plate is connected to an end of the first elastic member away from the mounting plate.

[0010] As a preferred embodiment of the self-draining drainer described in the present invention, the clearing mechanism includes a clearing component installed at one end of the first fixed tube away from the first guide tube and crushing the blood clots in the drainage tube when working, and a transmission component with one end transmission connected to the clearing component and the other end transmission connected to the negative pressure generating component.

[0011] As a preferred embodiment of the self-draining drainer described in the present invention, the clearing component includes a second fixed tube installed at one end of the first fixed tube away from the first guide tube and connected to the second guide tube at the other end, a crushing component located in the second fixed tube, and a driving component installed on the second fixed tube and driving the crushing component to rotate during operation, wherein the driving component is in transmission connection with the transmission component.

[0012] As a preferred solution of the self-draining drainer described in the present invention, a mounting frame is provided inside the second fixed tube, a rotating rod with a limit rod on the side wall is rotatably connected to the mounting frame, and an annular groove is provided on the inner wall of the second fixed tube; The top of the crushing assembly is sleeved on the bottom of the rotating rod; The driving assembly includes a serrated ring movably mounted in the annular groove and having a limiting groove on the inner wall, a driving gear meshing with the serrated ring and having a first pulley on the top, a shell mounted on the outer side wall of the second fixed tube and having an open structure at the bottom, and a fan located in the shell and having a second pulley on the bottom, the second pulley is connected to the first pulley by a belt, and the limiting rod extends into the limiting groove at one end away from the rotating rod.

[0013] As a preferred solution of the self-draining drainer described in the present invention, the top of the shell has a first connecting port; The side wall of the first flow guide pipe is provided with a second connecting port; The transmission assembly includes a connecting pipe connected to the second connecting port and an on-off assembly located in the connecting pipe and for opening and closing the other end of the connecting pipe; The connecting pipe comprises a first connecting portion connected to the second connecting port and a second connecting portion having a third connecting port at one end away from the first connecting portion, wherein the third connecting port is connected to the first connecting port through a conduit; The switch assembly includes a plurality of second elastic members located on the side wall of the first connection portion and a movable block connected to the side wall and the other end of the second elastic member and movably sleeved in the second connection portion.

[0014] As a preferred solution of the self-draining drainer described in the present invention, it also includes a protective mechanism, which includes a pipette located at one end of the second guide tube away from the first guide tube and with a plurality of suction holes evenly opened on the outer wall, and a liquid collecting box installed at the bottom of the pipette and with an open top structure.

[0015] As a preferred solution of the self-draining drainer described in the present invention, a disturbance component is provided in the liquid pipe for disturbing the accumulated blood in the liquid collecting box during operation, and the disturbance component is transmission-connected to the pulverizing component.

[0016] Compared with the prior art, the present invention has the beneficial effect that, when the inside of the drainage tube is clogged with a blood clot, the trigger mechanism of this self-clearing drain automatically starts working to trigger the negative pressure generating component to switch to the second state after the suction is increased, thereby sucking the blood clot to the clearing mechanism. At the same time, after the negative pressure generating component switches to the second state, the clearing mechanism automatically starts working to crush the blood clot sucked here after the suction is increased, thereby completing the automatic clearing of the blocked blood clot inside the drainage tube, replacing the traditional way of dealing with the drainage tube being blocked by a blood clot during use of the self-clearing drain, avoiding the problem that the drainage tube cannot be automatically cleared after being blocked by a blood clot during the drainage process, which makes its use limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 It is a structural schematic diagram of a self-draining drainage device of the present invention; Figure 2 This is a structural breakdown diagram of a self-draining drainage device of the present invention; Figure 3 A side sectional view of a first fixed tube of a self-draining drainage device of the present invention; Figure 4 It is a side sectional view of a trigger mechanism of a self-draining drain of the present invention; Figure 5 This is a structural disassembly diagram of a dredging component of a self-dredging type drainer of the present invention; Figure 6 A side cross-sectional view of a dredging component of a self-dredging type drainer of the present invention; Figure 7 A side cross-sectional view of a second fixed tube of a self-draining drainage device of the present invention; Figure 8 It is a side sectional view of a transmission assembly of a self-draining drainer of the present invention; Fig. 9 The present invention is a schematic structural diagram of a protective mechanism of a self-draining drain.

[0018] In the figure: 100, drainage mechanism; 110, negative pressure generating assembly; 110a, supporting base; 110b, negative pressure generator; 120, drainage tube; 120a, first guide tube; 120a-1, second connecting port; 120b, second guide tube; 200, trigger mechanism; 210, first fixed tube; 210a, through groove; 210a-1, connecting groove; 210b, mounting plate; 210b-1, trigger switch; 210b-2, first elastic member; 220, trigger assembly; 220a, rotating shaft; 220b, driving plate; 220c, trigger plate; 300, dredging mechanism; 310, dredging assembly; 310a, second fixed tube; 310a-1, mounting frame; 310a-11, rotating rod; 310a-111, limit Rod; 310a-2, annular groove; 310b, crushing assembly; 310c, driving assembly; 310c-1, serrated ring; 310c-11, limiting groove; 310c-2, driving gear; 310c-21, first pulley; 310c-3, shell; 310c-31, first connecting port; 310c-4, fan; 310c-41, second pulley; 320, transmission assembly; 320a, connecting pipe; 320a-1, first connecting part; 320a-2, second connecting part; 320a-21, third connecting port; 320b, on-off assembly; 320b-1, second elastic member; 320b-2, movable block; 400, protective mechanism; 410, suction tube; 410a, suction hole; 420, liquid collecting box. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0021] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] The present invention provides a self-clearing drain, which replaces the traditional self-clearing drain in dealing with the blockage of the drainage tube by blood clots during use, thereby avoiding the problem that the drainage tube cannot be automatically cleared after being blocked by blood clots during the drainage process, which makes its use limited.

[0023] Figure 1-Figure 9The structure diagram of a self-draining drainage device of the present invention is shown in FIG. Figure 1-Figure 9 A detailed introduction is given to this self-draining drainage device. Example 1

[0024] refer to Figure 1-Figure 2 The present invention discloses a self-draining drainer, the main body of which includes a drainage mechanism 100, a trigger mechanism 200 and a clearing mechanism 300.

[0025] refer to Figure 1-Figure 2 The drainage mechanism 100 is used to suck out the accumulated blood and other fluids in the patient's body when working. The drainage mechanism 100 includes a negative pressure generating component 110 electrically connected to the control system and a drainage tube 120 connected to the negative pressure generating component 110. The negative pressure generating component 110 is used to generate negative pressure suction when working. The drainage tube 120 is used to suck out the accumulated blood and other fluids in the patient's body when the negative pressure generating component 110 is working. The negative pressure generating component 110 has a first state under normal suction and a second state after increasing the suction, so that the negative pressure generating component 110 can generate negative pressure suction when working. In the first state, the blood drainage component 110 normally drains the patient to absorb the accumulated blood, and the suction force does not cause damage to the patient's body tissues. In the second state, the suction force is increased to absorb the blood clot blocked in the drainage tube 120, so that it moves to the dredging mechanism 300 in the drainage tube 120. Since the drainage tube 120 is blocked by the blood clot, the increased suction force will only act on one end of the drainage tube 120 in the moving direction of the blood clot, and will not directly act on the end of the drainage tube 120 that contacts the patient's body, thereby not causing damage to the patient's body tissues. refer to Figure 1-Figure 2 The trigger mechanism 200 is used to automatically trigger the negative pressure generating component 110 to switch to the second state after the suction force is increased when the drainage tube 120 is blocked by a blood clot. The trigger mechanism 200 is installed on the drainage tube 120. When the drainage tube 120 is blocked, the trigger mechanism 200 automatically starts to work, triggering the negative pressure generating component 110 to switch from the first state to the second state, and when the blockage in the drainage tube 120 is ended, the trigger mechanism 200 triggers the negative pressure generating component 110 to switch from the second state back to the first state. The trigger mechanism 200 is electrically connected to the control system, so that when the drainage tube 120 is blocked by a blood clot, the trigger mechanism 200 automatically triggers the negative pressure generating component 110 to switch from the first state to the second state, thereby increasing the suction force to absorb and move the blocked blood clot, so that the blood clot is moved to the dredging mechanism 300 for crushing. When the blood clot is crushed and the blockage in the drainage tube 120 is ended, the trigger mechanism 200 triggers the negative pressure generating component 110 to switch back to the first state, thereby continuing to drain the accumulated blood in the patient's body; refer to Figure 1-Figure 2The dredging mechanism 300 is used to crush the blood clots in the drainage tube 120 when working, so that the crushed blood clots can pass through the drainage tube 120 smoothly. The dredging mechanism 300 is installed on the drainage tube 120. When the negative pressure generating component 110 is switched to the second state, the dredging mechanism 300 is automatically driven to start working to crush the blood clots blocking the drainage tube 120. When the negative pressure generating component 110 is switched to the second state, the dredging mechanism 300 starts working, and after the negative pressure generating component 110 increases the suction force, the blood clots sucked here are crushed, so that the drainage tube 120 is unobstructed.

[0026] In this embodiment, the specific use process is as follows: when draining the accumulated blood in the patient's body, after the negative pressure generating component 110 generates negative pressure suction in the first state, the accumulated blood in the patient's body is sucked out through the drainage tube 120. When the drainage tube 120 is blocked by a blood clot, the trigger signal generated by the trigger component 220 is transmitted to the control system, and the control system transmits the signal to the negative pressure generating component 110, and the negative pressure generating component 110 switches to the second state after increasing the suction, so that the blood clot in the drainage tube 120 is sucked and moved after the suction is increased. At the same time, when the negative pressure generating component 110 switches to the second state, it automatically drives the dredging mechanism 300 to start working, and the blood clot that is sucked and moved here after the suction is increased is crushed, thereby completing the automatic dredging of the blood clot inside the drainage tube 120. After the blood clot is crushed, the trigger mechanism 200 transmits a signal to the control system, and the control system transmits the signal to the negative pressure generating component 110, and the negative pressure generating component 110 switches back to the first state again, thereby continuing to drain the accumulated blood in the patient's body. Example 2

[0027] Based on Example 1, Figure 2 The negative pressure generating assembly 110 includes a supporting base 110a and a negative pressure generator 110b installed on the top of the supporting base 110a. The supporting base 110a is used to support the entire instrument and maintain stability during the drainage process. The negative pressure generator 110b is used to generate negative pressure suction during operation. refer to Figure 2 The drainage tube 120 includes a first drainage tube 120a connected to the negative pressure generator 110b at one end and a second drainage tube 120b used to extend into the patient's body. The first drainage tube 120a is used to generate suction after being connected to the negative pressure generator 110b, and the second drainage tube 120b is used to extend into the patient's body when in use, so that when the negative pressure generator 110b is working, the accumulated blood and other fluids in the patient's body are sucked into the first drainage tube 120a through the second drainage tube 120b; In this embodiment, the second guide tube 120b is connected to a collection bag (not shown in the figure) for collecting the sucked out stagnant blood, and is used to collect the drained stagnant blood and other effusions.

[0028] In this embodiment, the specific working process is as follows: when the negative pressure generator 110b is working, negative pressure suction is generated, and the negative pressure suction is sucked into the first guide tube 120a through the first guide tube 120a and the second guide tube 120b, and the accumulated blood in the patient's body is sucked into the first guide tube 120a through the second guide tube 120b, and the accumulated blood enters the collection bag from the first guide tube 120a and is collected. Example 3

[0029] Based on Example 2, Figure 1-Figure 4 The trigger mechanism 200 includes a first fixed tube 210 installed at one end of the first flow guide tube 120a away from the negative pressure generator 110b, and a trigger component 220 installed on the first fixed tube 210 and electrically connected to the control system. The first fixed tube 210 is used to be connected to the first flow guide tube 120a and is convenient for installing the trigger component 220. The trigger component 220 is used to sense the flow rate of the liquid in the first fixed tube 210, so that after the second flow guide tube 120b is blocked and the flow rate in the first fixed tube 210 decreases, the trigger component 220 transmits the blocked signal to the control system, and after the flow rate in the first fixed tube 210 increases and returns to normal, the trigger component 220 transmits the signal that the blockage is cleared to the control system.

[0030] In this embodiment, reference Figure 4 The inner wall of the first fixed tube 210 is provided with a through groove 210a for conveniently connecting the trigger assembly 220, the inner wall of the through groove 210a is provided with a connecting groove 210a-1 for rotating the connecting shaft 220a, and the outer wall of the first fixed tube 210 is provided with a mounting plate 210b for conveniently installing the trigger switch 210b-1 and the first elastic member 210b-2, and the bottom of the mounting plate 210b is provided with a trigger switch 210b-1 electrically connected to the control system and the first elastic member 210b -2, the trigger switch 210b-1 is used to cooperate with the trigger plate 220c. When the trigger plate 220c contacts the trigger switch 210b-1, the trigger switch 210b-1 transmits a blocking signal to the control system. The first elastic member 210b-2 is used to reduce the flow in the first fixed pipe 210. After the punching pressure on the bottom of the driving plate 220b is reduced, the driving plate 220b drives the rotating shaft 220a to rotate under its own pulling force, so that the trigger plate 220c rotates to a position in contact with the trigger switch 210b-1; refer to Figure 4The trigger assembly 220 includes a rotating shaft 220a rotatably mounted in the connecting groove 210a-1, a driving plate 220b located on one side of the rotating shaft 220a and extending into the first fixed tube 210, and a trigger plate 220c located on the other side of the rotating shaft 220a and corresponding to the trigger switch 210b-1. The rotating shaft 220a is used to connect the driving plate 220b and the trigger plate 220c, and drives the driving plate 220b and the trigger plate 220c to swing when rotating. The driving plate 220b is used to trigger the first fixed tube 210. The flow of accumulated blood in a fixed tube 210 is sensed, and after the flow of accumulated blood in the first fixed tube 210 increases and drives it to flip upward, the driving shaft 220a is rotated, thereby separating the sensing switch from the trigger plate 220c. The trigger plate 220c is used to trigger the trigger switch 210b-1 to transmit a blockage signal to the control system after contacting the trigger switch 210b-1. The top of the trigger plate 220c is connected to the end of the first elastic member 210b-2 away from the mounting plate 210b.

[0031] In this embodiment, the specific working process is as follows: when the drainage mechanism 100 drains the patient normally in the first state, the accumulated blood normally enters the first guide tube 120a through the first fixed tube 210, and the driving plate 220b is impacted by the accumulated blood flow inside the first fixed tube 210 and reverses upward, driving the rotating shaft 220a to rotate so that the trigger plate 220c is separated from the trigger switch 210b-1. At this time, the first elastic member 210b-2 is stretched and deformed. When the second guide tube 120b is blocked by blood clots, the flow inside the first fixed tube 210 becomes smaller. At this time, the bottom of the driving plate 220b is impacted by the accumulated blood flow and the force becomes smaller. The first elastic member 210b-2 is reset to drive the rotating shaft 220a to rotate. At this time, the trigger plate 220c flips to the trigger switch 210b. -1 contact position, at this time, the trigger switch 210b-1 transmits the blockage signal to the control system, and the control system transmits the signal to the negative pressure generating component 110, so that it switches to the second state after the suction is increased, thereby sucking the blocked blood clot in the second guide tube 120b and moving it to the dredging mechanism 300 to be crushed. When the blood clot is crushed, the accumulated blood flow in the first fixed tube 210 becomes large again, and then the driving plate 220b flips upward again under the impact of the accumulated blood flow, thereby driving the rotating shaft 220a to rotate and the trigger plate 220c is separated from the trigger switch 210b-1 again. After the trigger switch 210b-1 transmits the signal that the blockage is cleared to the control system, the control system transmits the signal to the negative pressure generating component 110, so that it switches from the second state back to the first state to continue drainage. Example 4

[0032] Based on Example 3, Figure 1-Figure 8The dredging mechanism 300 includes a dredging component 310 installed at one end of the first fixed tube 210 away from the first guide tube 120a and crushing the blood clots in the drainage tube 120 when working, and a transmission component 320 with one end transmission connected to the dredging component 310 and the other end transmission connected to the negative pressure generating component 110. The dredging component 310 is used to crush the blood clots sucked by the negative pressure generating component 110 in the second state when working, and the transmission component 320 is used to automatically drive the dredging component 310 to work when the negative pressure generating component 110 switches to the second state and drives it to work.

[0033] In this embodiment, reference Figure 5-Figure 7 The dredging component 310 includes a second fixed tube 310a installed at one end of the first fixed tube 210 away from the first guide tube 120a and connected to the second guide tube 120b at the other end, a crushing component 310b located in the second fixed tube 310a, and a driving component 310c installed on the second fixed tube 310a and driving the crushing component 310b to rotate when working. The first fixed tube 210 is used to facilitate the installation of the crushing component 310b and the driving component 310c and facilitate the blood accumulated by the second guide tube 120b to enter the first fixed tube 210 after passing through. The crushing component 310b is used to crush the blood clot in the second fixed tube 310a when rotating, so that the crushed blood clot can smoothly pass through the second fixed tube 310a and enter the first fixed tube 210. The driving component 310c is used to drive the crushing component 310b to rotate when the negative pressure generating component 110 is switched to the second state and drives it to work, wherein the driving component 310c is connected to the transmission component 320 in a transmission manner.

[0034] In this embodiment, reference Figure 6-Figure 7 The second fixed tube 310a is provided with a mounting frame 310a-1 inside for facilitating the installation of the crushing assembly 310b. The mounting frame 310a-1 is rotatably connected with a rotating rod 310a-11 having a limiting rod 310a-111 on the side wall. The rotating rod 310a-11 is used to drive the crushing assembly 310b to rotate when rotating. The limiting rod 310a-111 is used to be inserted into the limiting groove 310c-11, so that the rotating rod 310a-11 is driven to rotate when the sawtooth ring 310c-1 rotates. The inner wall of the second fixed tube 310a is provided with an annular groove 310a-2 for rotatably installing the sawtooth ring 310c-1. refer to Figure 6 The top of the crushing assembly 310b is sleeved on the bottom of the rotating rod 310a-11, so as to drive the crushing assembly 310b to rotate when the rotating rod 310a-11 rotates; refer to Figure 6The driving assembly 310c includes a sawtooth ring 310c-1 movably mounted in the annular groove 310a-2 and having a limiting groove 310c-11 on the inner wall, a driving gear 310c-2 meshing with the sawtooth ring 310c-1 and having a first pulley 310c-21 on the top, a shell 310c-3 mounted on the outer wall of the second fixed tube 310a and having an open structure at the bottom, and a fan 310c-4 located in the shell 310c-3 and having a second pulley 310c-41 at the bottom. The sawtooth ring 310c-1 is used to drive the rotating rod 310a-11 to rotate when rotating, and the driving gear 310c-2 is used to rotate When it moves, it drives the sawtooth ring 310c-1 to rotate, the first pulley 310c-21 is used to drive the driving gear 310c-2 to rotate when it rotates, the shell 310c-3 is used to facilitate the installation of the fan 310c-4, the fan 310c-4 is used to drive the second pulley 310c-41 to rotate when it rotates, the second pulley 310c-41 is used to drive the first pulley 310c-21 to rotate when it rotates, the second pulley 310c-41 is connected to the first pulley 310c-21 by a belt, and the limit rod 310a-111 extends from the end of the rotating rod 310a-11 to the limit groove 310c-11.

[0035] In this embodiment, reference Figure 6 The top of the housing 310c-3 has a first connection port 310c-31 for connecting to the third connection port 320a-21 through a conduit; refer to Figure 2 The side wall of the first flow guide pipe 120a is provided with a second connection port 120a-1 for convenient connection with the connection pipe 320a; refer to Figure 2 and Figure 8 The transmission assembly 320 includes a connecting pipe 320a connected to the second connecting port 120a-1 and an on-off assembly 320b located in the connecting pipe 320a and opening and closing the other end of the connecting pipe 320a. The connecting pipe 320a is used to facilitate the connection of the first flow guide pipe 120a with the first connecting port 310c-31. The on-off assembly 320b is used to close the connecting pipe 320a when the negative pressure generating assembly 110 is in a first state with low suction force, and to open the connecting pipe 320a when the negative pressure generating assembly 110 is in a second state with high suction force, so as to extract air from the first connecting port 310c-31. refer to Figure 8The connecting pipe 320a has a first connecting portion 320a-1 connected to the second connecting port 120a-1 and a second connecting portion 320a-2 having a third connecting port 320a-21 at an end away from the first connecting portion 320a-1. The third connecting port 320a-21 is connected to the first connecting port 310c-31 through a conduit. The first connecting portion 320a-1 and the second connecting portion 320a-2 are used to facilitate the first flow guide pipe 120a to be exhausted from the housing 310c-3 through the connecting pipe 320a after the on-off assembly 320b is opened. refer to Figure 8 The on-off assembly 320b includes a plurality of second elastic members 320b-1 located on the side wall of the first connection portion 320a-1 and a movable block 320b-2 connected to the other end of the side wall and the second elastic member 320b-1 and movably sleeved in the second connection portion 320a-2. The elastic member is used to bounce the movable block 320b-2 into the second connection portion 320a-2 when the negative pressure generating assembly 110 is in the first state, thereby blocking the second connection portion 320a-2. When the negative pressure generating assembly 110 is in the second state, due to the first guide pipe 1 When the internal suction force of 20a increases, thereby increasing the suction force on the movable block 320b-2, the second elastic member 320b-1 is deformed, and the movable block 320b-2 is pulled out from the second connection part 320a-2, thereby opening the second connection part 320a-2, allowing the air in the shell 310c-3 to smoothly pass through the second connection part 320a-2 and the first connection part 320a-1 and enter the first air guide 120a, and then when the air in the shell 310c-3 is continuously drawn upward, the flowing air drives the fan 310c-4 to rotate.

[0036] In this embodiment, the specific working process is as follows: when the first flow guide tube 120a is blocked by a blood clot, the trigger component 220 transmits a signal to the control system. After the negative pressure generating component 110 receives the signal from the control system and switches to the second state, the suction force inside the first flow guide tube 120a increases, so that the suction force inside the second flow guide tube 120b increases and the blocked blood clot is sucked to the position of the crushing component 310b. At the same time, the suction force inside the connecting tube 320a increases, so that the movable block 320b-2 moves out of the second connecting part 320a-2, and then the second connecting part 320a-2 is opened, and the air in the shell 310c-3 enters the first flow guide tube 120a through the first connecting port 310c-31 and the third connecting port 320a-21, so that the air in the shell 310c-3 When the air flows, it drives the fan 310c-4 to rotate. After the fan 310c-4 rotates, it drives the driving gear 310c-2 to rotate through the second pulley 310c-41 and the first pulley 310c-21. When the driving gear 310c-2 rotates, it drives the serrated ring 310c-1 to rotate. When the serrated ring 310c-1 rotates, it drives the rotating rod 310a-11 to rotate. When the rotation rotates, it drives the crushing assembly 310b to rotate. When the crushing assembly 310b rotates, it breaks up the blood clot sucked here, so that the crushed blood clot can smoothly pass through the second fixed tube 310a into the first fixed tube 210. After the blood clot is crushed, the second guide tube 120b, the first fixed tube 210 and the second fixed tube 310a are unblocked, so that the drainage mechanism 100 can continue to drain. Example 5

[0037] Based on Example 4, Fig. 9 In order to prevent the end of the second flow guide tube 120b away from the first flow guide tube 120a from directly contacting the body tissue in the patient's body, thereby causing damage to the body tissue in the patient's body after the negative pressure generating component 110 generates suction, a protective mechanism 400 is also included. The protective mechanism 400 includes a pipette 410 located at the end of the second flow guide tube 120b away from the first flow guide tube 120a and having multiple pipette holes 410a evenly opened on the outer wall, and a liquid collecting box 420 installed at the bottom of the pipette 410 and having an open structure on the top. The pipette 410 is used to suck the accumulated blood in the liquid collecting box 420 into the second flow guide tube 120b, and the pipette holes 410a are used to facilitate the accumulated blood in the liquid collecting box 420 to enter the pipette 410. The liquid collecting box 420 is used to collect the accumulated blood and other fluids in the patient's body, so as to facilitate the pipette 410 to drain the accumulated blood from the liquid collecting box 420 and prevent the second flow guide tube 120b from directly acting on the body tissue in the patient's body.

[0038] In this embodiment, the specific working process is as follows: during drainage preparation, after the second guide tube 120b is extended to the blood accumulation position in the patient's body, the accumulated blood first enters the liquid collecting box 420 through the opening at the top of the liquid collecting box 420. When the drainage mechanism 100 starts to work, the accumulated blood enters the liquid suction tube 410 through the suction hole 410a and is then sucked away by the second guide tube 120b, thereby preventing the second guide tube 120b from directly acting on the patient's body tissue and causing damage to the patient's body tissue during drainage. Example 6

[0039] On the basis of Example 5, in order to prevent the accumulated blood in the liquid collecting box 420 from coagulating after becoming still, thereby preventing the formation of blood clots that block the drainage tube 120, a disturbance component (not shown in the figure) is provided in the liquid pipette 410 for disturbing the accumulated blood in the liquid collecting box 420 during operation. The disturbance component is transmission-connected to the crushing component 310b, and the disturbance component is connected to the disturbance component through a tension rope, thereby clogging the inside of the drainage tube 120. When the crushing component 310b rotates to crush the blood clot, the crushing component 310b rotates to drive the tension rope to rotate in the second guide tube 120b, thereby driving the disturbance component to rotate in the liquid pipette 410, disturbing the accumulated blood in the liquid pipette 410, so that the accumulated blood cannot coagulate.

[0040] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A self-draining drainage device, characterized in that: include: A drainage mechanism (100), comprising a negative pressure generating assembly (110) electrically connected to a control system and a drainage tube (120) connected to the negative pressure generating assembly (110), wherein the negative pressure generating assembly (110) has a first state under normal suction and a second state after increasing the suction; a trigger mechanism (200) mounted on the drainage tube (120), wherein when a blockage occurs in the drainage tube (120), the trigger mechanism (200) automatically starts to work, triggering the negative pressure generating component (110) to switch from the first state to the second state, and when the blockage in the drainage tube (120) ends, the trigger mechanism (200) triggers the negative pressure generating component (110) to switch from the second state back to the first state; A dredging mechanism (300) is installed on the drainage tube (120), wherein when the negative pressure generating component (110) is switched to the second state, the dredging mechanism (300) is automatically driven to start working, thereby breaking up the blood clot blocking the drainage tube (120).

2. A self-draining drainage device according to claim 1, characterized in that: The negative pressure generating assembly (110) comprises a supporting base (110a) and a negative pressure generator (110b) installed on the top of the supporting base (110a); The drainage tube (120) comprises a first drainage tube (120a) having one end connected to the negative pressure generator (110b) and a second drainage tube (120b) for extending into the patient's body.

3. A self-draining drainage device according to claim 2, characterized in that: The trigger mechanism (200) comprises a first fixed tube (210) installed at one end of the first flow guide tube (120a) away from the negative pressure generator (110b), and a trigger component (220) installed on the first fixed tube (210) and electrically connected to the control system.

4. A self-draining drainage device according to claim 3, characterized in that: The inner wall of the first fixed tube (210) is provided with a through groove (210a), the inner wall of the through groove (210a) is provided with a connecting groove (210a-1), the outer wall of the first fixed tube (210) is provided with a mounting plate (210b), and the bottom of the mounting plate (210b) is provided with a trigger switch (210b-1) electrically connected to the control system and a first elastic member (210b-2); The trigger assembly (220) comprises a rotating shaft (220a) rotatably mounted in the connecting groove (210a-1), a driving plate (220b) located on one side of the rotating shaft (220a) and extending into the interior of the first fixed tube (210), and a trigger plate (220c) located on the other side of the rotating shaft (220a) and corresponding to the trigger switch (210b-1), wherein the top of the trigger plate (220c) is connected to an end of the first elastic member (210b-2) away from the mounting plate (210b).

5. A self-draining drainage device according to claim 3, characterized in that: The dredging mechanism (300) comprises a dredging component (310) installed at one end of the first fixed tube (210) away from the first drainage tube (120a) and used to crush blood clots in the drainage tube (120) when in operation, and a transmission component (320) having one end transmission-connected to the dredging component (310) and the other end transmission-connected to the negative pressure generating component (110).

6. A self-draining drainage device according to claim 5, characterized in that: The dredging component (310) comprises a second fixed pipe (310a) installed at one end of the first fixed pipe (210) away from the first guide pipe (120a) and connected to the second guide pipe (120b) at the other end, a crushing component (310b) located in the second fixed pipe (310a), and a driving component (310c) installed on the second fixed pipe (310a) and driving the crushing component (310b) to rotate when in operation, wherein the driving component (310c) is in driving connection with the transmission component (320).

7. A self-draining drainage device according to claim 6, characterized in that: A mounting frame (310a-1) is arranged inside the second fixed tube (310a), a rotating rod (310a-11) having a limit rod (310a-111) on the side wall of the mounting frame (310a-1) is rotatably connected to the mounting frame (310a-1), and an annular groove (310a-2) is provided on the inner wall of the second fixed tube (310a); The top of the crushing assembly (310b) is sleeved on the bottom of the rotating rod (310a-11); The driving assembly (310c) comprises a sawtooth ring (310c-1) movably mounted in the annular groove (310a-2) and having a limiting groove (310c-11) on its inner wall, a driving gear (310c-2) meshing with the sawtooth ring (310c-1) and having a first pulley (310c-21) on its top, a shell (310c-3) mounted on the outer wall of the second fixed tube (310a) and having an open structure at the bottom, and a fan (310c-4) located in the shell (310c-3) and having a second pulley (310c-41) on its bottom, the second pulley (310c-41) being connected to the first pulley (310c-21) via a belt, and an end of the limiting rod (310a-111) away from the rotating rod (310a-11) extending into the limiting groove (310c-11).

8. A self-draining drainage device according to claim 7, characterized in that: The top of the shell (310c-3) is provided with a first connection port (310c-31); The side wall of the first flow guiding pipe (120a) is provided with a second connecting port (120a-1); The transmission component (320) comprises a connection pipe (320a) connected to the second connection port (120a-1) and an on-off component (320b) located in the connection pipe (320a) and opening and closing the other end of the connection pipe (320a); The connecting pipe (320a) comprises a first connecting portion (320a-1) connected to the second connecting port (120a-1), and a second connecting portion (320a-2) having a third connecting port (320a-21) at one end away from the first connecting portion (320a-1), wherein the third connecting port (320a-21) is connected to the first connecting port (310c-31) via a conduit; The switch assembly (320b) comprises a plurality of second elastic members (320b-1) located on the side wall of the first connection portion (320a-1), and a movable block (320b-2) connected to the side wall and the other end of the second elastic member (320b-1) and movably sleeved in the second connection portion (320a-2).

9. A self-draining drainage device according to claim 6, characterized in that: It also comprises a protection mechanism (400), the protection mechanism (400) comprising a liquid pipette (410) located at one end of the second flow guide tube (120b) away from the first flow guide tube (120a) and having an outer wall uniformly provided with a plurality of liquid pipette holes (410a), and a liquid collection box (420) installed at the bottom of the liquid pipette (410) and having an open top structure.

10. A self-draining drainage device according to claim 9, characterized in that: The liquid pipette (410) is provided with a disturbance component for disturbing the accumulated blood in the liquid collection box (420) during operation, and the disturbance component is transmission-connected to the pulverizing component (310b).

Images