Clinical ascites drainage equipment

Abstract

The clinical ascites drainage equipment comprises a puncture catheter, a drainage tube, a drainage bottle and a negative pressure drainage device which are sequentially connected, a cylindrical head is arranged between the puncture catheter and the drainage tube, a cavity is formed in the cylindrical head, the cylindrical head is rotationally connected with a supporting block, a conveying cavity is formed in the supporting block, and a locking piece is arranged in the supporting block; the supporting block is fixedly connected with a connecting block, the connecting block is provided with a quick connector, and a switch piece is arranged in the connecting block. The cylindrical head is rotationally connected with the supporting block; when the cylindrical head is parallel to the supporting block, the drainage tube can be directly connected with the quick connector; after locking and fixing between the cylindrical head and the supporting block are removed, the supporting block and the cylindrical head can be perpendicular to each other, medical staff can conveniently fix the supporting block through an adhesive tape, and the situation that ascites delivery is affected due to the fact that the joint of the puncture catheter and the cylindrical head is bent and the drainage tube is squeezed is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a clinical ascites drainage device. Background Art

[0002] In the medical field, for patients suffering from diseases such as ascites, ascites drainage through a puncture catheter and a drainage tube is a common treatment method;

[0003] During actual operation, in order to ensure the stability of the puncture catheter and the drainage tube and prevent them from falling off, medical staff usually use tape to fix the connector and the drainage tube on the patient's skin.

[0004] However, there are generally some problems with the current fixing method; when pursuing the fixing effect, medical staff often choose to fix the connector and the drainage tube by overly fitting them to the skin; although this overly fixed approach reduces the risk of catheter detachment to a certain extent, it causes other adverse consequences. On the one hand, over-fixing may cause bending between the connector and the puncture catheter; since the connection between the puncture catheter and the connector is relatively fragile, bending easily results in poor sealing at the connection, or even leakage, which not only affects the normal progress of ascites drainage but also may cause complications such as infection, posing a serious threat to the patient's health; on the other hand, overly fitting the skin to fix the drainage tube itself will also cause the drainage tube to bend. After the drainage tube bends, the flow path of the ascites in the tube becomes tortuous, increasing the flow resistance and seriously affecting the smooth drainage of ascites.

[0005] At the same time, over-fixing will also squeeze the drainage tube, causing the inner diameter of the drainage tube wall to become narrower. The change in the diameter of the drainage tube will directly affect the flow rate of ascites, resulting in slow flow of ascites in the tube and inability to effectively drain it out of the body in a timely manner; this not only prolongs the patient's treatment cycle, increases the patient's pain, but also may cause a series of adverse symptoms due to long-term accumulation of ascites in the body, such as aggravated abdominal distension and abdominal pain, further worsening the patient's condition. In addition, due to poor drainage, it may be necessary to perform secondary operations on the patient, increasing medical costs and medical risks and causing unnecessary waste of medical resources. Summary of the Invention

[0006] The purpose of the present invention is to provide a clinical ascites drainage device to solve the problems existing in the background art.

[0007] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows:

[0008] A clinical ascites drainage device includes a puncture catheter, a drainage tube, a drainage bottle, and a negative pressure drainage device connected in sequence, and a connection component is provided between the puncture catheter and the drainage tube;

[0009] The connection component includes:

[0010] A cylindrical head, which is located between the puncture catheter and the drainage tube. A cavity is provided inside the cylindrical head, and the cavity is communicated with the puncture catheter;

[0011] Two support blocks, which are respectively rotatably connected to both sides of the cylindrical head. A conveying cavity communicated with the cavity is provided inside any one of the support blocks, and a locking member is provided inside the other support block for locking and fixing after the relative angle between the cylindrical head and the support block changes;

[0012] A connecting block, which is fixedly connected to the opposite ends of the two support blocks respectively. The connecting block is used to make the two support blocks move synchronously. A quick connector is provided at one end of the connecting block away from the cylindrical head, and the quick connector is communicated with the drainage tube. A switching member is provided inside the connecting block for controlling the communication or cut-off between the conveying cavity and the drainage tube.

[0013] Further defined, an installation groove is provided inside the support block, a polygonal groove communicated with the installation groove is provided on the cylindrical head, a groove communicated with the installation groove is provided on the outer side of the support block, and the locking member is arranged inside the installation groove and the polygonal groove;

[0014] The locking member includes:

[0015] A polygonal frame, which is slidably arranged inside the polygonal groove, and the polygonal frame is attached to the side wall of the polygonal groove;

[0016] A solid block, which is located inside the installation groove, and the solid block is fixedly connected to the polygonal frame;

[0017] An elastic member, which is arranged between the solid block and the polygonal groove;

[0018] An annular block, which is fixed inside the installation groove and abuts against one side of the solid block away from the polygonal groove. Four locking grooves are provided on one side of the annular block facing the solid block, and the four locking grooves are evenly distributed in a circumferential manner;

[0019] Four locking blocks, all of the four locking blocks are fixedly connected to the solid block, and the four locking blocks are matched with the four locking blocks;

[0020] A pressing block, which is fixedly connected to one side of the solid block facing the annular block and extends into the groove.

[0021] Further defined, a communication cavity is provided inside the connecting block, and is communicated with the conveying cavity and the quick connector. The switching member is arranged inside the communication cavity;

[0022] The switch member includes:

[0023] A connecting pipe that is hermetically rotatable inside the connecting cavity and is connected to the quick connector, and a connecting port communicating with the conveying cavity is provided on the side wall of the connecting pipe;

[0024] An adjusting knob, one end of the connecting pipe away from the quick connector is fixed with a connecting rod, the adjusting knob is fixedly connected to one end of the connecting rod passing through the connecting block, and the connecting rod is hermetically rotatable with the connecting block.

[0025] Further defined, a convex head is fixed on the outer arc surface of the cylindrical head, a puncture hole communicating with the cavity is provided at the center position of one end of the convex head away from the cylindrical head, and the puncture hole and the puncture catheter are located on the same central axis, and a rubber plug is inserted outside the convex head.

[0026] Further defined, a guiding frame is fixed on the inner wall of the cavity for guiding the puncture needle into the puncture catheter, and is located on the same central axis as the puncture hole and the puncture catheter. A tripod is fixed on the inner wall of the cavity, and one side of the guiding frame away from the puncture hole is fixedly connected to the tripod.

[0027] Further defined, the side of the puncture catheter away from the cylindrical head is provided with an inclined opening, and a plurality of liquid leakage openings are provided on the side wall of the puncture catheter, and the liquid leakage openings are arranged at intervals.

[0028] Further defined, an auxiliary connector communicating with the connecting cavity is provided on the upper side of the connecting block, a cleaning pipe is connected to the auxiliary connector, and a plug is provided at the end of the cleaning pipe.

[0029] Further defined, a liquid outlet pipe is connected to the lower end of the drainage bottle, a switch valve is provided at the end of the liquid outlet pipe, a hanging member is provided outside the drainage bottle, and a blocking member is provided inside the drainage bottle;

[0030] The hanging member includes:

[0031] A hanging frame that is sleeved outside the drainage bottle, a hook is fixed on the upper side of the hanging frame for hanging on the edge of the hospital bed to fix the drainage bottle, and a receiving groove matching the liquid outlet pipe is provided at the bottom of the hanging frame.

[0032] The blocking member includes:

[0033] A vertical pipe that is connected to the liquid inlet of the drainage bottle, and a plurality of liquid leakage grooves are provided on the side wall of the vertical pipe for ascites to flow into the drainage bottle;

[0034] A floating ball that is arranged inside the vertical pipe and is slidably sealed with the inner wall of the vertical pipe.

[0035] Advantages of the present invention:

[0036] 1. In the connection component of the device, the support block and the cylindrical head are rotatably connected by a locking member. Pressing the pressing block can unlock and rotate the support block, and it automatically locks after being released. Through angle adjustment, the connection between the puncture catheter and the cylindrical head is kept straight, avoiding the bending of the drainage tube, ensuring the smooth flow of ascites, improving the drainage efficiency. At the same time, after connecting the drainage tube, the position of the drainage tube can be changed so that the drainage tube is located below the connection block. By pasting the support block, the fixation of the puncture catheter and the drainage tube can be indirectly achieved, without worrying about excessive fixation by medical staff, squeezing the drainage tube, and affecting the delivery of ascites.

[0037] 2. A switch member is provided inside the connection block of this device. By rotating the adjustment knob to drive the connecting pipe to rotate, the connection or disconnection between the delivery cavity and the drainage tube can be accurately controlled. It is convenient for medical staff to quickly block the flow of ascites during operations such as suspending drainage and replacing components. The operation is simple and the control is precise.

[0038] 3. The puncture catheter of the device is provided with an inclined opening and leak holes arranged at intervals. The inclined opening facilitates puncture and prevents blockage, and the leak holes expand the collection range. Under the action of the negative pressure drainer, ascites can be collected more efficiently, reducing the problem of unsmooth drainage caused by blockage.

[0039] 4. The sealing member inside the drainage bottle of this device, through the cooperation of the vertical pipe, the liquid leakage groove and the floating ball, when the ascites reaches a certain amount, the floating ball rises to block the liquid inlet of the vertical pipe, preventing the backflow and overflow of ascites, ensuring the safety and hygiene of use.

[0040] 5. An auxiliary joint and a cleaning pipe are provided on the connection block of this device. After the drainage is completed, the cleaning pipe can be connected through the auxiliary joint to flush the drainage system, keep the device unobstructed and clean, extend the service life, and ensure the safety and effectiveness of the next use. Brief Description of the Drawings

[0041] The present invention can be further illustrated by the non-limiting embodiments given in the drawings.

[0042] Figure 1 is a schematic structural diagram of a clinical ascites drainage device of the present invention;

[0043] Figure 2 is a partial structural sectional view of a clinical ascites drainage device of the present invention Figure 1 ;

[0044] Figure 3 is Figure 2 an enlarged structural diagram of part A in

[0045] Figure 4Partial structural cross-sectional schematic of a clinical ascites drainage device of the present invention Figure 2 ;

[0046] Figure 5 is Figure 4 The enlarged structural schematic diagram at position B in

[0047] Figure 6 Partial structural cross-sectional schematic of a clinical ascites drainage device of the present invention Figure 3 ;

[0048] Figure 7 is Figure 6 The enlarged structural schematic diagram at position C in

[0049] Figure 8 Partial structural cross-sectional schematic of a clinical ascites drainage device of the present invention Figure 4 ;

[0050] Figure 9 is Figure 8 The enlarged structural schematic diagram at position D in

[0051] Figure 10 Partial structural schematic of a clinical ascites drainage device of the present invention;

[0052] Figure 11 Schematic diagram of the angle adjustment structure of the cylindrical head and the support block of a clinical ascites drainage device of the present invention.

[0053] The main component symbols are explained as follows:

[0054] Puncture catheter 100, drainage tube 101, drainage bottle 102, negative pressure drainage device 103,

[0055] Cylindrical head 200, cavity 201, support block 202, delivery cavity 203, connection block 204, quick connector 205, installation groove 300, polygonal groove 301, groove 302, polygonal frame 303, solid block 304, elastic member 305, annular block 306, locking groove 307, locking block 308, pressing block 309,

[0056] Communication cavity 400, communication pipe 401, communication port 402, adjustment knob 403,

[0057] Convex head 500, puncture hole 501, rubber plug 502, guiding frame 503, tripod 504, liquid leakage port 505,

[0058] Auxiliary connector 600, cleaning pipe 601, plug 602,

[0059] Liquid outlet pipe 700, switch valve 701, mounting frame 702, hook 703, receiving groove 704, vertical pipe 705, liquid leakage groove 706, floating ball 707. Detailed implementation manners

[0060] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0061] Embodiment 1:

[0062] As Figures 1-11 shown, a clinical ascites drainage device includes a puncture catheter 100, a drainage tube 101, a drainage bottle 102, and a negative pressure drainer 103 that are connected in sequence. A connection component is provided between the puncture catheter 100 and the drainage tube 101;

[0063] The connection component includes:

[0064] A cylindrical head 200. The cylindrical head 200 is located between the puncture catheter 100 and the drainage tube 101. A cavity 201 is opened inside the cylindrical head 200, and the cavity 201 communicates with the puncture catheter 100;

[0065] Two support blocks 202. The two support blocks 202 are respectively rotatably connected to both sides of the cylindrical head 200. A delivery cavity 203 communicating with the cavity 201 is opened inside any one of the support blocks 202. A locking member is provided inside the other support block 202 for locking and fixing after the relative angle between the cylindrical head 200 and the support block 202 changes;

[0066] A connection block 204. The connection block 204 is fixedly connected to the opposite ends of the two support blocks 202 respectively. The connection block 204 is used to make the two support blocks 202 move synchronously. A quick connector 205 is provided at the end of the connection block 204 away from the cylindrical head 200, and the quick connector 205 communicates with the drainage tube 101. A switch member is provided inside the connection block 204 for controlling the communication or disconnection between the delivery cavity 203 and the drainage tube 101.

[0067] The function of the puncture catheter 100 is to penetrate into the patient's abdominal cavity percutaneously to collect ascites. It is connected to the cylindrical head 200 to provide a channel for ascites to flow into the device.

[0068] The function of the drainage tube 101 is to be responsible for transporting the ascites collected by the puncture catheter 100 into the drainage bottle 102, which is an important path for ascites transmission.

[0069] The function of the drainage bottle 102 is to store the ascites drawn from the patient's body, facilitating subsequent observation and treatment of the ascites.

[0070] The function of the negative pressure drainer 103 is to generate negative pressure to provide power for ascites drainage, enabling ascites to smoothly flow from the abdominal cavity through the puncture catheter 100 and the drainage tube 101 into the drainage bottle 102 for storage.

[0071] The above components are the prior art in the drainage device and are only briefly described here.

[0072] The cylindrical head 200 is located between the puncture catheter 100 and the drainage tube 101. The internal cavity 201 is connected to the puncture catheter 100 and serves as a transfer for ascites, introducing the ascites collected by the puncture catheter 100 into the connection assembly.

[0073] The support blocks 202 are rotatably connected to both sides of the cylindrical head 200 respectively. The delivery cavity 203 of one of the support blocks 202 is connected to the cavity 201 of the cylindrical head 200 for guiding ascites. The locking member in the other support block 202 can be locked and fixed after the relative angle between the cylindrical head 200 and the support block 202 changes, and the position of the drainage tube is adjusted by the angle change to meet different operation requirements.

[0074] The connecting block 204 connects the two support blocks 202 to make them move synchronously. The quick connector 205 at its end far from the cylindrical head 200 is connected to the drainage tube 101, enabling ascites to flow from the connection assembly into the drainage tube 101. The internal switch member can control the connection or disconnection between the delivery cavity 203 and the drainage tube 101, facilitating the control of the ascites drainage process, such as during the need to pause drainage or replace the drainage tube 101.

[0075] The puncture catheter 100 collects ascites, enters the connection assembly through the cylindrical head 200, reaches the connecting block 204 through the delivery cavity 203 of the support block 202, then enters the interior of the drainage tube 101 through the quick connector 205 on the connecting block 204, and finally flows into the drainage bottle 102. This process is powered by the negative pressure drainage device 103. The design of the connection assembly, especially the rotatable and lockable function of the support block 202 and the control of the switch member of the connecting block 204, makes the drainage process more flexible and controllable, and can be adjusted according to the actual situation of the patient and the operation requirements of medical staff, improving the efficiency and safety of ascites drainage.

[0076] An installation groove 300 is formed inside the support block 202. The cylindrical head 200 is provided with a polygonal groove 301 communicating with the installation groove 300. A groove 302 communicating with the installation groove 300 is formed on the outer side of the support block 202. The locking member is arranged inside the installation groove 300 and the polygonal groove 301.

[0077] The locking member includes:

[0078] A polygonal frame 303 is slidably arranged inside the polygonal groove 301, and the polygonal frame 303 is in contact with the side wall of the polygonal groove 301.

[0079] A solid block 304 is located inside the installation groove 300, and the solid block 304 is fixedly connected to the polygonal frame 303.

[0080] The elastic member 305 is disposed between the solid block 304 and the polygonal groove 301;

[0081] The annular block 306 is fixed inside the mounting groove 300 and abuts against the side of the solid block 304 away from the polygonal groove 301. Four locking grooves 307 are formed on the side of the annular block 306 facing the solid block 304, and the four locking grooves 307 are evenly distributed in a circumferential manner;

[0082] The four locking blocks 308 are all fixedly connected to the solid block 304, and the four locking blocks 308 are matched with the four locking blocks 308;

[0083] The pressing block 309 is fixedly connected to the side of the solid block 304 facing the annular block 306 and extends into the groove 302.

[0084] The mounting groove 300 provides an installation space for other components of the locking member, enabling them to be orderly combined inside the support block 202.

[0085] The groove 302 facilitates the operation of the pressing block 309 by medical staff. At the same time, the groove 302 communicates with the mounting groove 300 to ensure that the movement of the pressing block 309 in the groove 302 can be smoothly transmitted to the locking member components in the mounting groove 300.

[0086] The polygonal groove 301 cooperates with the polygonal frame 303 to restrict the movement trajectory of the polygonal frame 303 so that it can only slide within the polygonal groove 301; at the same time, the sliding of the polygonal frame 303 drives the movement of other components to realize the adjustment and locking of the angle between the support block 202 and the cylindrical head 200.

[0087] The polygonal frame 303 slides within the polygonal groove 301. Since it fits against the side wall of the polygonal groove 301, it can move stably within the groove, driving components such as the solid block 304 fixedly connected to it to move together. It is one of the key components for realizing the locking and unlocking actions.

[0088] The solid block 304 is fixedly connected to the polygonal frame 303, receives the movement of the polygonal frame 303 and transmits it to other components; at the same time, it interacts with the elastic member 305, the annular block 306 and the locking blocks 308 to realize the functions of locking and unlocking.

[0089] The elastic member 305 has elasticity. When the solid block 304 is forced to move, the elastic member 305 is compressed or stretched; when the pressing block 309 is pressed to move the solid block 304, the elastic member 305 stores elastic potential energy; when the pressing block 309 is released, the elastic member 305 releases the elastic potential energy, pushing the solid block 304 to reset, and then enabling the locking blocks 308 to re-engage with the locking grooves 307 to realize automatic locking.

[0090] The annular block 306 is fixed in the installation groove 300, and the four locking grooves 307 evenly distributed on it cooperate with the locking blocks 308; when the locking blocks 308 are snapped into the locking grooves 307, the relative angle between the support block 202 and the cylindrical head 200 can be locked; when the locking blocks 308 are disengaged from the locking grooves 307, the support block 202 can rotate relative to the cylindrical head 200 to adjust the angle.

[0091] The locking blocks 308 are fixedly connected to the solid block 304 and, driven by the solid block 304, cooperate with the locking grooves 307 on the annular block 306; when the locking blocks 308 are snapped into the locking grooves 307, the relative rotation between the support block 202 and the cylindrical head 200 is restricted; when the locking blocks 308 are disengaged from the locking grooves 307, the support block 202 can be angle-adjusted; there are four locking blocks 308, and the four locking blocks 308 are evenly distributed, and the angle between two adjacent locking blocks 308 is 90 degrees, so that the cylindrical head 200 and the support block 202 can directly change from a parallel state to a perpendicular state.

[0092] The function of the pressing block 309 is to facilitate the medical staff to press, so as to operate the locking member; the pressing block 309 extends into the groove 302 to facilitate the medical staff to apply force; when the pressing block 309 is pressed, the solid block 304 is driven to move, so as to realize the disengagement of the locking blocks 308 from the locking grooves 307, unlock the relative angle between the support block 202 and the cylindrical head 200, and facilitate the adjustment of the position of the support block.

[0093] When it is necessary to adjust the angle between the support block 202 and the cylindrical head 200, the medical staff presses the pressing block 309, and the pressing block 309 drives the solid block 304 and the polygon frame 303 to move. The polygon frame 303 slides in the polygon groove 301, so that the solid block 304 compresses the elastic member 305 and separates from the annular block 306, and the locking blocks 308 are disengaged from the locking grooves 307. At this time, the support block 202 can rotate relative to the cylindrical head 200. After the rotation starts, the medical staff can release the pressing block 309, and at this time the locking blocks 308 will abut against the annular block 306;

[0094] When the adjustment reaches the appropriate angle, that is, when the support block 202 and the cylindrical head 200 are perpendicular to each other, the elastic member 305 returns to its original state, pushes the solid block 304 to reset, and makes the locking blocks 308 automatically snap into the locking grooves 307 again to fix the angle between the support block 202 and the cylindrical head 200; this combined design enables the drainage device to conveniently adjust the position of the drainage tube 101 according to the patient's body position, puncture site and the operation requirements of the medical staff during use, while ensuring that the adjusted position is stable and reliable, which helps to improve the effect and safety of ascites drainage.

[0095] A communication cavity 400 is provided inside the connection block 204 and is communicated with the delivery cavity 203 and the quick connector 205, and a switching member is arranged inside the communication cavity 400;

[0096] Switch components include:

[0097] The connecting pipe 401 is sealed and rotated inside the connecting chamber 400 and is connected to the quick connector 205. The side wall of the connecting pipe 401 is provided with a connecting port 402 that is connected to the delivery chamber 203;

[0098] The adjusting knob 403 and the connecting pipe 401 are fixed with a connecting rod at one end away from the quick connector 205 . The adjusting knob 403 and the connecting rod are fixedly connected to one end of the connecting rod passing through the connecting block 204 , and the connecting rod and the connecting block 204 are sealed and rotated.

[0099] The connecting cavity 400 serves as a channel connecting the delivery cavity 203 and the quick connector 205, providing a path for the flow of ascites within the device; it ensures that the ascites can flow smoothly from the delivery cavity 203 of the support block 202 to the quick connector 205 connected to the drainage tube 101, and is a key connecting part in the ascites transmission process.

[0100] The connecting tube 401 rotates in a sealed manner within the connecting cavity 400 and is connected to the quick connector 205, ensuring that ascites does not leak from the connection between the connecting tube 401 and the connecting cavity during flow. The connecting port 402 provided on its side wall controls the connection between the connecting tube 401 and the delivery cavity 203 when the connecting tube 401 rotates.

[0101] When the communication port 402 is aligned with the delivery cavity 203 , ascites can flow from the delivery cavity 203 into the interior of the communication tube 401 through the communication port 402 and then flow to the quick connector 205 ;

[0102] When the communication port 402 is offset from the delivery cavity 203 , the passage between the two is blocked and the ascites cannot pass through, thus acting as a valve to control the flow of ascites.

[0103] The adjusting knob 403 is connected to the connecting tube 401 through a connecting rod. When the medical staff rotates the adjusting knob 403, the connecting rod is driven to rotate, thereby causing the connecting tube 401 to rotate in the connecting cavity 400; by rotating the adjusting knob 403, the medical staff can conveniently control the rotation angle of the connecting tube 401, thereby accurately controlling the connection or isolation state of the connecting port 402 and the delivery cavity 203; the connecting rod and the connecting block 204 are sealed and rotated to ensure that the entire system remains sealed during the process of the adjusting knob 403 driving the connecting tube 401 to rotate, thereby preventing ascites leakage.

[0104] When ascites drainage is required, turn the adjustment knob 403 to connect the communication port 402 with the delivery cavity 203, and the ascites can smoothly flow from the delivery cavity 203 into the quick connector 205 and then into the drainage tube 101; when operations such as pausing drainage, performing equipment maintenance or replacing components are needed, turn the adjustment knob 403 to stagger the communication port 402 from the delivery cavity 203 to block the flow path of the ascites, facilitating corresponding operations by medical staff; this design makes the control of the ascites drainage process more convenient and precise, improving the safety and flexibility of equipment use.

[0105] A convex head 500 is fixed on the outer arc surface of the cylindrical head 200. A puncture hole 501 communicating with the cavity 201 is provided at the center position of the end of the convex head 500 away from the cylindrical head 200, and the puncture hole 501 and the puncture catheter 100 are located on the same central axis. A rubber plug 502 is inserted on the outside of the convex head 500.

[0106] The convex head 500 extends outward from the cylindrical head 200, providing a position carrier for the puncture hole 501, keeping the puncture hole 501 in communication with the cavity 201 of the cylindrical head 200, guiding the puncture needle to enter the cavity 201 through the puncture hole 501, and then connecting with the puncture catheter 100, playing a role in guiding and positioning the puncture needle during the puncture operation.

[0107] The puncture hole 501 serves as a channel for the puncture needle to enter, introducing the puncture needle into the cavity 201 and exiting through the puncture catheter 100. Before aspirating ascites, the skin of the patient is punctured to guide the puncture catheter 100 into the abdominal cavity of the patient, which is a prerequisite for subsequent ascites drainage.

[0108] The rubber plug 502 is inserted on the outside of the convex head 500, and a sealing head is provided on the inner side of the rubber plug 502 for further sealing and plugging the puncture hole 501. A marking point is provided at the center position of the end of the rubber plug 502 away from the cylindrical head 200, facilitating medical staff to align the puncture needle with the marking point, thus facilitating the puncture needle to enter the inside of the puncture hole 501; when the puncture operation is not carried out, the rubber plug 502 closes the puncture hole 501 to prevent external pollutants such as dust and bacteria from entering the cavity 201 and the puncture catheter 100, ensuring the cleanliness and sterility of the internal drainage system and avoiding the risk of infection.

[0109] Medical staff insert the puncture needle through the syringe towards the marking point of the rubber stopper 502, so that the puncture needle will only enter the inside of the puncture hole 501. Then, until the puncture needle penetrates out of the inside of the puncture catheter 100, it can puncture the puncture point of the patient, thereby sending the puncture catheter 100 into the patient's abdominal cavity; when there is a sense of falling or no resistance when the end of the puncture needle inserted into the patient's body, it can be judged that the puncture needle and the puncture catheter 100 have entered the patient's abdominal cavity. Or when pulling back the piston of the syringe, if ascites is drawn into the syringe, it can also be judged that the puncture needle and the puncture catheter 100 have entered the patient's abdominal cavity. At this time, the medical staff can pull out the syringe and the puncture needle, and only keep the puncture catheter 100 in the patient's abdominal cavity; after withdrawing the puncture needle, since the material of the rubber stopper 502 is an elastic material such as silicone rubber, butyl rubber, thermoplastic elastomer, etc., it can automatically seal the needle opening, thereby preventing the patient's abdominal cavity from communicating with the outside world, and further avoiding being contaminated by the outside world.

[0110] A guiding frame 503 is fixed on the inner wall of the cavity 201 for guiding the puncture needle into the inside of the puncture catheter 100, and is located on the same central axis as the puncture hole 501 and the puncture catheter 100. A tripod 504 is fixed on the inner wall of the cavity 201, and the side of the guiding frame 503 away from the puncture hole 501 is fixedly connected to the tripod 504.

[0111] The main function of the guiding frame 503 is to guide the puncture needle accurately into the inside of the puncture catheter 100 during the puncture process; during actual operation, the puncture needle moves forward along the trajectory of the guiding frame, which can better dock with the puncture catheter 100, avoid the puncture needle deviating from the direction, and improve the accuracy and success rate of the puncture.

[0112] The tripod 504 provides stable support for the guiding frame; since the guiding frame 503 needs to be accurately positioned to guide the puncture needle, the tripod 504 can ensure that the guiding frame 503 remains stable during use, will not shake or shift randomly, and ensure the reliability of the guiding function of the guiding frame 503. At the same time, the tripod 504 is located on the side of the guiding frame 503 close to the puncture catheter 100, which can prevent ascites from flowing directly onto the guiding frame 503. And the tripod 504 is a semi-cylindrical tubular shape, so that the ascites flowing onto the inner wall of the guiding frame 503 will not remain on the guiding frame 503 and cause accumulation and blockage, thus facilitating subsequent cleaning and preventing infection.

[0113] The combination of the guiding frame 503 and the tripod 504 significantly improves the stability and accuracy of the puncture operation; the guiding frame 503 provides a precise path for the puncture needle to enter the puncture catheter, while the tripod 504 stabilizes the position of the guiding frame 503 and prevents the guiding frame 503 from shifting during the puncture; this combination makes the puncture process more standardized and safe, reduces the risk of puncture failure or tissue damage caused by the deviation of the puncture needle, and provides a strong guarantee for the smooth progress of ascites drainage.

[0114] On the side of the puncture catheter 100 away from the cylindrical head 200, an inclined opening is provided. A number of liquid leakage openings 505 are formed on the side wall of the puncture catheter 100, and the liquid leakage openings 505 are arranged at intervals.

[0115] During the ascites drainage process, the inclined opening can prevent impurities in the ascites, such as blood clots, tissue debris, etc., from blocking the puncture catheter 100, thus affecting the subsequent ascites drainage.

[0116] The liquid leakage openings 505 are for collecting abdominal fluid; when the puncture catheter 100 successfully enters the abdominal cavity, the ascites can enter the interior of the puncture catheter 100 through these liquid leakage openings 505; the design of arranging at intervals not only increases the area for the ascites to enter the catheter, making the ascites collection more efficient, but also prevents the puncture catheter 100 from being bent due to the opening of the liquid leakage openings 505, affecting the ascites collection; and the liquid leakage openings 505 at different positions can collect the ascites from multiple directions, avoiding affecting the drainage effect due to local blockage.

[0117] The inclined opening facilitates the puncture catheter 100 to enter the abdominal cavity along the puncture needle, creating conditions for ascites drainage, and the inclined opening is the opening at the front end for absorbing ascites; the liquid leakage openings 505 are responsible for collecting the ascites around the puncture catheter 100, and the arrangement at intervals expands the collection range and improves the collection efficiency; the two work together, enabling the puncture catheter 100 to more effectively introduce the ascites into the catheter after entering the abdominal cavity, providing a good start for the subsequent drainage operation, ensuring the smooth progress of the ascites drainage process, and not easily causing blockage.

[0118] On the upper side of the connection block 204, an auxiliary joint 600 communicating with the communication cavity 400 is provided. The auxiliary joint 600 is connected with a cleaning tube 601, and a plug 602 is provided at the end of the cleaning tube 601.

[0119] The auxiliary joint 600 is an interface for connecting the cleaning tube 601 and the connection block 204; its function is to provide a connection position for the cleaning tube 601, enabling the cleaning tube 601 to be connected to the communication cavity 400, the main channel of the ascites drainage, and facilitating the cleaning operation of the drainage system.

[0120] The cleaning tube 601 is connected to the auxiliary joint 600 and is a tool for cleaning the drainage system; after the drainage process is completed, or when it is found that there is a risk of blockage in the drainage system, the communication cavity 400 and related components can be flushed through the cleaning tube 601; the cleaning tube 601 can convey cleaning liquid, such as physiological saline, to clean the impurities, blood clots, etc. attached to the inner wall of the communication cavity 400, the communication tube 401 and other components, keeping the drainage system unobstructed.

[0121] The plug 602 is located at the end of the cleaning tube 601. When the cleaning operation is not carried out, the plug 602 plays a sealing role; it prevents external pollutants such as dust and bacteria from entering the drainage system through the cleaning tube, avoiding contamination of the drainage system, ensuring the cleanliness and sterility of the drainage system for the next use; at the same time, when the cleaning operation is carried out, the plug 602 can prevent the cleaning liquid from leaking from the end of the cleaning tube, ensuring that the cleaning liquid can enter the drainage system along the set path for cleaning work.

[0122] After the drainage operation is completed or when there is a potential blockage hazard, the medical staff first need to rely on the liquid stop clamp to cut off the delivery channel between the drainage tube 101 and the drainage bottle 102. Then, rotate the adjustment knob 403 to connect the communication port 402 with the auxiliary joint 600, and also cut off the connection between the delivery cavity 203 and the quick connector 205. In this way, when the medical staff injects the cleaning liquid into the cleaning tube 601, the cleaning liquid will not flow into the patient's abdominal cavity and the interior of the drainage bottle 102, but only flow into the drainage tube 101 for cleaning. By repeatedly injecting or withdrawing the cleaning liquid inside the cleaning tube 601, the residual impurities inside the drainage tube 101 can be reduced, the infection risk can be lowered, the service life of the drainage device can be extended, and the safety and effectiveness of the entire ascites drainage device for the next use can be ensured.

[0123] The lower end of the drainage bottle 102 is connected to a liquid outlet pipe 700. A switch valve 701 is provided at the end of the liquid outlet pipe 700. A hanging member is provided outside the drainage bottle 102, and a blocking member is provided inside the drainage bottle 102;

[0124] The hanging member includes:

[0125] A hanging frame 702, the hanging frame 702 is sleeved outside the drainage bottle 102. A hook 703 is fixed on the upper side of the hanging frame 702 for hanging and fixing the drainage bottle 102 to the edge of the hospital bed. A receiving groove 704 matching the liquid outlet pipe 700 is opened at the bottom of the hanging frame 702.

[0126] The blocking member includes:

[0127] A vertical pipe 705, the vertical pipe 705 is connected to the liquid inlet of the drainage bottle 102. A plurality of liquid leakage grooves 706 are opened on the side wall of the vertical pipe 705 for ascites to flow into the drainage bottle 102;

[0128] A floating ball 707, the floating ball 707 is arranged inside the vertical pipe 705 and is slidably sealed with the inner wall of the vertical pipe 705.

[0129] The liquid outlet pipe 700 is a channel for discharging the ascites stored in the drainage bottle 102, which is convenient for medical staff to perform subsequent processing on the collected ascites, such as measuring the amount of ascites and conducting relevant tests.

[0130] The switch valve 701 is used to control the opening and closing state of the liquid outlet pipe 700; when it is necessary to drain ascites, the switch valve 701 is opened, and the ascites can flow out through the liquid outlet pipe 700; when drainage is not required, the switch valve 701 is closed to prevent ascites leakage, and at the same time, a relatively sealed environment inside the drainage bottle 102 can be maintained to avoid the entry of external bacteria and other pollutants.

[0131] The mounting frame 702 plays a role in fixing and protecting the drainage bottle 102, making the drainage bottle 102 more stable during use and not prone to tipping or shaking.

[0132] The hook 703 can be hung on the edge of the hospital bed to hang and fix the drainage bottle 102 in a suitable position, which is convenient for medical staff to observe and operate. At the same time, it can also prevent the drainage bottle 102 from occupying space when placed on a table or being accidentally knocked down.

[0133] The receiving groove 704 matches the liquid outlet pipe 700; it can position and protect the liquid outlet pipe 700, preventing the liquid outlet pipe from being excessively bent or twisted during use, and ensuring that the ascites can smoothly drain through the liquid outlet pipe 700.

[0134] The vertical pipe 705 provides a channel for ascites to enter the drainage bottle. At the same time, the liquid leakage groove 706 on its side wall can make the ascites evenly enter the inside of the vertical pipe 705 and then flow into the drainage bottle 102, avoiding the ascites concentrating on one place and causing poor drainage.

[0135] When there is less ascites in the drainage bottle 102, the floating ball 707 is at a lower position, and the liquid leakage groove 706 is connected to the inside of the drainage bottle 102, and the ascites can smoothly enter the drainage bottle 102; as the ascites continuously flows in, when the ascites rises to a certain height, the floating ball will rise under the action of buoyancy until it blocks the liquid inlet of the vertical pipe 705, preventing the ascites from continuing to enter the inside of the drainage bottle 102, thereby realizing the function of automatic sealing. In this way, it is not necessary for medical staff to always monitor the drainage bottle 102 to prevent excessive storage of ascites, which affects the subsequent treatment by medical staff.

[0136] The mounting parts, through the mounting frame 702, the hook 703 and the receiving groove 704, firmly hang the drainage bottle 102 beside the hospital bed, protect the liquid outlet pipe 700, and ensure its normal operation; the vertical pipe 705, the liquid leakage groove 706 and the floating ball 707 of the blocking parts work together to ensure that the ascites smoothly flows into the drainage bottle and is automatically blocked, preventing excessive ascites from being stored inside the drainage bottle 102, which is not convenient for operation and treatment; the liquid outlet pipe 700 and the switch valve 701 facilitate medical staff to control the drainage of ascites; the whole combination improves the convenience, safety and hygiene of the ascites drainage operation, and helps the smooth development of medical work.

[0137] The specific use steps of this device during the ascites drainage process are as follows:

[0138] S1: Positioning:

[0139] Before performing ascites drainage, generally, ultrasound examination is first carried out to accurately determine the distribution, depth of ascites and its relationship with surrounding organs, so as to select the best puncture and drainage position. At the same time, the principle of aseptic operation should be strictly followed to prevent the occurrence of complications such as infection.

[0140] S2: Disinfection:

[0141] Taking the McBurney's point, the reverse McBurney's point and the upper edge of the pubic symphysis of the puncture point as the center, use disinfection supplies such as iodophor to disinfect the skin. The disinfection range is generally an area with a diameter of 15 - 20 cm, and then spread a hole drape to establish an aseptic area.

[0142] S3: Anesthesia:

[0143] Use a syringe to draw an appropriate amount of anesthetic drug, such as lidocaine, and perform local anesthesia at the puncture point, infiltrating layer by layer from the skin to the peritoneum to relieve the pain of the patient during the puncture process.

[0144] The above three steps are routine operations in the process of ascites drainage and are prior art. Here, no more detailed description will be given.

[0145] S4: Puncture and catheter placement:

[0146] Medical staff use a syringe to puncture the puncture needle through the marked point on the rubber plug 502, so that the puncture needle can be quickly positioned and directly enter the inside of the puncture hole 501 until it passes through the puncture catheter 100; then, puncture the patient's puncture point. When there is a sense of falling or no resistance when the puncture needle penetrates into the patient's body, or there is ascites when the syringe is aspirated, it indicates that the puncture needle and the puncture catheter 100 have entered the abdominal cavity. At this time, pull out the syringe and the puncture needle, and the rubber plug 502 can automatically close the needle opening to prevent the patient's abdominal cavity from communicating with the outside world, thus preventing infection. Finally, connect the drainage tube 101 to the quick connector 205, and the drainage tube 101 is subsequently connected to the liquid inlet of the drainage bottle 102, and the drainage bottle 102 is connected to the negative pressure drainage device 103;

[0147] In this process, the convex head 500 provides positioning for the puncture hole 501; the marked point of the rubber plug 502 provides puncture positioning for the puncture needle, enabling the puncture needle to enter the inside of the puncture hole 501 faster; the guiding frame 503 guides the puncture needle straight into the inside of the puncture catheter 100 during puncture; the tripod 504 stabilizes the position of the guiding frame 503 to ensure the accuracy and stability of the puncture operation.

[0148] S5: Fix the drainage tube 101:

[0149] Initially: The cylindrical head 200 and the support block 202 are on the same horizontal plane. After the puncture catheter 100 is inserted into the patient's abdominal cavity by relying on the puncture needle, it is also convenient for medical staff to directly connect the drainage tube 101 to the quick connector 205;

[0150] During fixation: By pressing the pressing block 309, the solid block 304 and the polygonal frame 303 are driven to move, so that the locking block 308 disengages from the locking groove 307. At this time, the support block 202 can be rotated to adjust the angle. After releasing the pressing block 309, the elastic member 305 resets to make the locking block 308 snap into the locking groove 307 again, fixing the angle between the support block 202 and the cylindrical head 200;

[0151] Among them, the number of the locking blocks 308 and the locking grooves 307 is four each. Each locking block 308 and locking groove 307 is a group, and they are evenly distributed in a circle. In this way, the included angle between two adjacent locking blocks 308 or locking grooves 307 is 90 degrees. In this way, the rotated support block 202 will be perpendicular to the cylindrical head 200. At this time, it can not only keep the connection between the puncture catheter 100 and the cylindrical head 200 on the same horizontal plane, but also change the direction of the drainage tube 101, enabling medical staff to directly fix the two support blocks 202 with tape, thereby fixing the puncture catheter 100 and the drainage tube 101, without having to consider over-fixation, which may cause the connection between the puncture catheter 100 and the cylindrical head 200 to bend and the drainage tube 101 to be squeezed, affecting the delivery of ascites.

[0152] S6: Place other components of the drainage system:

[0153] Medical staff rely on the hook 703 on the hanging frame 702 outside the drainage bottle 102 to hang on the edge of the hospital bed, which is convenient for placing the drainage bottle 102, making the drainage bottle 102 not easily touched, stably suspended, and avoiding damage to the drainage bottle 102, thus causing pollution.

[0154] S7: Ascites collection:

[0155] After the entire ascites drainage system is ready, the negative pressure drainer 103 starts to work. It is connected to the drainage bottle 102 through the suction pipe, reducing the internal pressure of the drainage bottle 102 to form a negative pressure environment, thereby promoting the flow of ascites into the drainage bottle 102; the exhaust pipe connected to the upper end of the negative pressure drainer 103 is used to discharge the excess gas generated during the operation of the negative pressure drainer 103, maintaining the internal pressure balance and ensuring the normal operation of the equipment;

[0156] When the adjustment knob 403 is rotated to align the communication port 402 on the communication pipe 401 with the delivery cavity 203 of the support block 202, under the action of negative pressure, the puncture catheter 100 can start to collect ascites;

[0157] The ascites that enters the puncture catheter 100 flows into the delivery cavity 203 of the support block 202 that is connected thereto through the cavity 201 of the cylindrical head 200, then flows along the connected communication pipe 401, enters the drainage tube 101 through the quick connector 205 on the connection block 204, and finally, under the continuous action of negative pressure, is smoothly transported to the inside of the drainage bottle 102 for storage, completing the process of ascites collection;

[0158] Among them, two markings are provided on one side of the connection block 204 close to the cylindrical head 200, which are respectively the communication quick connector 205 or the communication auxiliary connector 600. At the same time, a pointer is provided on the surface of the adjustment knob 403, so that medical staff can rotate the adjustment knob 403 and, according to the different pointers pointed by the pointer, different operations can be realized.

[0159] S7: Drainage fluid storage:

[0160] The vertical tube 705 in the drainage bottle 102 provides a channel for the ascites to enter, and the liquid leakage tank 706 enables the ascites to flow in evenly; when the ascites is less, the floating ball 707 is in a low position, the liquid leakage tank 706 is connected to the inside of the drainage bottle 102, and the ascites smoothly enters; after the ascites increases, the floating ball 707 rises under the action of buoyancy to block the liquid inlet of the vertical tube 705, preventing excessive storage of ascites.

[0161] S8: Drainage fluid discharge:

[0162] When it is necessary to discharge the ascites, the on-off valve 701 at the end of the liquid outlet pipe 700 is opened, and the ascites flows out through the liquid outlet pipe 700, facilitating subsequent processing such as measurement and detection of the ascites by medical staff.

[0163] S9: Equipment cleaning:

[0164] After the drainage operation is completed or when there is a risk of blockage in the drainage system, rotate the adjustment knob 403 to connect the communication port 402 with the auxiliary connector 600, cut off the connection between the delivery cavity 203 and the quick connector 205, then connect the cleaning pipe 601 to the auxiliary connector 600, open the plug 602, inject a cleaning liquid such as physiological saline to flush components such as the communication cavity 400 and the communication pipe 401, and after cleaning, close the plug 602 to keep the drainage system unobstructed and clean.

[0165] In this embodiment, the cylindrical head 200 is rotatably connected to the support block 202; when the cylindrical head 200 is parallel to the support block 202, it is convenient for medical staff to directly connect the drainage tube 101 to the quick connector 205; by pressing the pressing block 309 to disengage the locking block 308 from the locking groove, the locking and fixing between the cylindrical head 200 and the support block 202 is released, and the support block is rotated to adjust the angle so that the support block 202 is perpendicular to the cylindrical head 200, which can not only keep the connection between the puncture catheter 100 and the cylindrical head 200 at the same horizontal plane, but also change the direction of the drainage tube 101, facilitating the medical staff to fix the support block 202 with tape, avoiding bending at the connection between the puncture catheter 100 and the cylindrical head 200 and extrusion of the drainage tube 101, thereby affecting ascites delivery.

[0166] The above embodiments are only used to exemplarily illustrate the principles and effects of the present invention, rather than to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A clinical ascites drainage device, comprising a puncture catheter, a drainage tube, a drainage bottle and a negative pressure drainer connected in sequence, characterized in that, A connection component is provided between the puncture catheter and the drainage tube; The connection component includes: A cylindrical head, which is located between the puncture catheter and the drainage tube. A cavity is formed inside the cylindrical head, and the cavity communicates with the puncture catheter; Two support blocks, which are respectively rotatably connected to both sides of the cylindrical head. A conveying cavity communicating with the cavity is formed inside any one of the support blocks, and a locking member is arranged inside the other support block for locking and fixing after the relative angle between the cylindrical head and the support block changes; A connection block, which is fixedly connected to the opposite ends of the two support blocks respectively. The connection block is used to make the two support blocks move synchronously. A quick connector is arranged at the end of the connection block away from the cylindrical head, and the quick connector communicates with the drainage tube. A switch member is arranged inside the connection block for controlling the communication or disconnection between the conveying cavity and the drainage tube.

2. The clinical ascites drainage device according to claim 1, characterized in that: An installation groove is formed inside the support block, a polygonal groove communicating with the installation groove is formed on the cylindrical head, and a groove communicating with the installation groove is formed on the outer side of the support block. The locking member is arranged inside the installation groove and the polygonal groove; The locking member includes: A polygonal frame, which is slidably arranged inside the polygonal groove, and the polygonal frame is attached to the side wall of the polygonal groove; A solid block, which is located inside the installation groove and is fixedly connected to the polygonal frame; An elastic member, which is arranged between the solid block and the polygonal groove; An annular block, which is fixed inside the installation groove and abuts against the side of the solid block away from the polygonal groove. Four locking grooves are formed on the side of the annular block facing the solid block, and the four locking grooves are evenly distributed in a circumferential direction; Four locking blocks, all of which are fixedly connected to the solid block, and the four locking blocks match with the four locking grooves; A pressing block, which is fixedly connected to the side of the solid block facing the annular block and extends into the groove.

3. The clinical ascites drainage device according to claim 1, wherein: A communication cavity is formed inside the connection block and communicates with the conveying cavity and the quick connector. The switch member is arranged inside the communication cavity; The switch member includes: A communication pipe, which is hermetically rotated inside the communication cavity and communicates with the quick connector. A communication port communicating with the conveying cavity is formed on the side wall of the communication pipe; An adjustment knob, a connecting rod is fixed to the end of the communication pipe away from the quick connector. The adjustment knob is fixedly connected to the end of the connecting rod passing through the connection block, and the connecting rod is hermetically rotated with the connection block.

4. The clinical ascites drainage device according to claim 1, wherein: A convex head is fixed on the outer arc surface of the cylindrical head, a puncture hole communicating with the cavity is formed at the center position of the end of the convex head away from the cylindrical head, and the puncture hole and the puncture catheter are located on the same central axis. A rubber plug cover is inserted on the outer side of the convex head.

5. The clinical ascites drainage device according to claim 1, wherein: A guiding frame is fixed to the inner wall of the cavity for guiding the puncture needle into the interior of the puncture catheter, and is located on the same central axis as the puncture hole and the puncture catheter. A tripod is fixed to the inner wall of the cavity, and the side of the guiding frame away from the puncture hole is fixedly connected to the tripod.

6. The clinical ascites drainage device according to claim 1, characterized in that: The side of the puncture catheter away from the cylindrical head is provided with an inclined opening, and a plurality of liquid leakage openings are formed in the side wall of the puncture catheter, and the liquid leakage openings are arranged at intervals.

7. The clinical ascites drainage device according to claim 1, wherein: An auxiliary joint communicating with the communication cavity is provided on the upper side of the connection block. The auxiliary joint is connected with a cleaning pipe, and a plug is arranged at the end of the cleaning pipe.

8. A clinical ascites drainage device according to claim 1, characterized in that: A liquid outlet pipe is connected to the lower end of the drainage bottle. A switch valve is arranged at the end of the liquid outlet pipe. A hanging member is arranged on the outer side of the drainage bottle, and a blocking member is arranged inside the drainage bottle; The hanging member includes: A hanging frame, the hanging frame is sleeved on the outer side of the drainage bottle, a hook is fixed on the upper side of the hanging frame for hanging on the edge of the hospital bed to fix the drainage bottle, and a receiving groove matching the liquid outlet pipe is formed at the bottom of the hanging frame; The blocking member includes: A vertical pipe, the vertical pipe is communicated with the liquid inlet of the drainage bottle, and a plurality of liquid leakage grooves are formed in the side wall of the vertical pipe for ascites to flow into the drainage bottle; A floating ball, the floating ball is arranged inside the vertical pipe and is slidably sealed with the inner wall of the vertical pipe.

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