Medical quantity-controlled drainage stopping device

Abstract

The invention provides a medical quantity-control drainage stopping device, and belongs to the technical field of medical nursing instruments. The device is ingenious in structure, full-mechanical in structure, high in reliability and capable of automatically and quantitatively stopping drainage. The device comprises a shell, a stopping clamp and a driving assembly, the stopping clamp is arranged on the outer wall of the shell, the driving assembly is arranged in an inner cavity of the shell and is in driving connection with the stopping clamp, a drainage bag is hung on the driving assembly, a drainage tube is clamped in a clamping opening of the stopping clamp, and the drainage bag increases weight and pulls the driving assembly to deform to a cut-off threshold value position. The driving assembly drives and controls the stopping clamp to springing and closing to execute the flow stopping work on the drainage tube. The device is high in structural reliability, low in failure rate, adjustable in drainage amount, high in practicability, flexible in hanging mode and high in convenience.

Description

Technical Field

[0001] This invention belongs to the field of medical and nursing device technology, and in particular relates to a medical controlled drainage and interception device. Background Technology

[0002] In clinical medical practice, there are many conditions that require drainage treatment to relieve patients' pain. Specific applications include, but are not limited to, drainage of pericardial effusion, drainage of pleural and peritoneal effusion, postoperative drainage, and urinary drainage.

[0003] Currently, the drainage volume control method relies on manual monitoring, using visual observation to control the drainage volume. Once the designated drainage volume is reached, the drainage tube of the drainage bag is manually stopped to prevent the outflow of the fluid. However, in routine medical care, improper monitoring often leads to excessive drainage, and failure to stop the drainage in time can seriously impact the patient's health. Therefore, a drainage stop device that can replace manual monitoring is needed to safeguard the patient's health. Summary of the Invention

[0004] To address the problems existing in the background art, the present invention provides a medical controlled drainage interception device. This device has an ingenious structure, is entirely mechanical, has high reliability, and can automatically and quantitatively stop drainage.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a medical controlled drainage interception device, including a shell, an interception clamp and a driving component. The interception clamp is disposed on the outer wall of the shell, and the driving component is installed in the inner cavity of the shell. The driving component is drivenly connected to the interception clamp. The drainage bag is suspended on the driving component, and the drainage tube is clamped in the clamping opening of the interception clamp. The increased weight of the drainage bag pulls the driving component to deform to the interception threshold position. The driving component drives the interception clamp to spring and close to perform the interception work on the drainage tube.

[0006] The drive assembly includes an adjustment rod, a tension spring, and a flow-cutting wheel system. The adjustment rod is slidably inserted into the top wall of the housing, and the flow-cutting wheel system is rotatably installed in the inner cavity of the housing. The tension spring is obliquely hung between the end of the adjustment rod and the flow-cutting wheel system. Adjusting the insertion amount of the adjustment rod into the housing is achieved by the tension spring pulling the flow-cutting wheel system to rotate, thereby adjusting the position of the flow-cutting threshold and thus adjusting the value of the flow-cutting threshold.

[0007] The flow-stopping wheel system includes a flow-stopping pulley and a winding pulley, both of which are rotatably mounted in the outer casing. The flow-stopping pulley and the winding pulley are offset from each other. A stop rod is fixedly mounted on the flow-stopping pulley, with the axis of the stop rod parallel to the rotation axis of the flow-stopping pulley. The working end of the stop rod passes through a flow-stopping groove in the outer casing, and a stop block is provided at the end of the flow-stopping groove. The working end of the stop rod and the stop block together form a stop clamp. A reset rod is fixedly mounted on the flow-stopping pulley, with the axis of the reset rod parallel to the rotation axis of the flow-stopping pulley. The stop rod and the reset rod are located on the same side or opposite side of the flow-stopping pulley. A lifting line is fixedly mounted on the stop rod, and the lifting line is wound around the flow-stopping pulley and the winding pulley. The end of the lifting line passes through the lower wall of the outer casing and is fixedly mounted with a hook. The drainage bag is hung on the hook, and the drainage tube is clamped in the gap between the working end of the stop rod and the stop block.

[0008] The outer casing includes a bottom box and a cover. The front of the bottom box is open, and the cover is fixedly installed on the opening on the front of the bottom box. Two fixed seats are fixedly protruding on the rear wall of the bottom box, and the axes of the two fixed seats are perpendicular to the rear wall of the bottom box. The flow-blocking pulley and the winding pulley are respectively rotatably mounted on the two fixed seats. The suspended ends of the two fixed seats are threaded holes along the axis. The flow-blocking pulley and the winding pulley are each detachably mounted on the two fixed seats by a mounting bolt. A through-hole is opened at one edge of the lower wall of the bottom box, and the lifting line passes through the through-hole to the outside of the bottom box. The flow-blocking groove and the reset groove are opened on the bottom box or the cover.

[0009] The medical volume control drainage and interception device also includes a volume adjustment nut. The body of the volume adjustment rod is a threaded rod. The volume adjustment rod is slidably inserted into a hole opened in the top wall of the bottom box. A limiting seat is fixedly installed on the outside of the top wall of the bottom box. The volume adjustment nut is rotated and fitted onto the limiting seat and threadedly connected to the volume adjustment rod. The display end of the volume adjustment rod is located inside the bottom box. A tension spring is hooked to the end of the display end of the volume adjustment rod. An indicator slider is fixedly installed on the display end of the volume adjustment rod. A display groove is opened through the front and back direction on the box cover. The indicator slider is slidably inserted into the display groove. The indicator tip of the indicator slider points to the scale line of the display groove.

[0010] The adjustment rod is located inside the bottom box, and a guide block is fixedly installed on the radially protruding end of the adjustment rod. Two guide strips are fixedly installed on the rear wall of the bottom box along the axial direction of the adjustment rod. The two guide strips are clamped together to form a guide groove, and the guide block is slidably inserted into the guide groove.

[0011] The first wheel body of the flow-stopping pulley has a through groove 1 on its circumferential side wall, and the second wheel body of the winding pulley has a through groove 2 on its circumferential side wall. The lifting line is wound around the first groove and the second groove. A binding groove is opened in the first wheel body. The binding groove is arranged around the stop rod and is connected to the first groove. The lifting line is inserted into the binding groove and fixedly bolted to the stop rod.

[0012] The medical flow control and interception device also includes a suspension clamp, the head of which is closed and the tail is open. The tail of the suspension clamp is rotatably connected to the top of the bottom box, and one of the clamp plates of the suspension clamp is bent into a hook.

[0013] The medical flow control and interception device also includes two hanging rings, which are symmetrically arranged and rotatably installed on the two side walls of the bottom box. Both hanging rings are rotatably installed on the two side walls near the top wall, and a carrying strap is movably attached to the two hanging rings.

[0014] Multiple pipe clamps are fixedly installed on the outer side of the rear wall of the bottom box. Each pipe clamp has a side opening, and the openings of adjacent pipe clamps are arranged in opposite directions.

[0015] The beneficial effects of this invention are as follows: The device can adjust the drainage volume and is suitable for drainage in various departments and for various diseases; the device adopts a fully mechanical structure, which has high structural reliability and low failure rate; the device is equipped with a dual-mode suspension clamp, which can clamp or hang, greatly improving the flexibility of use; the device also has a hanging ring, which provides multiple modes of use, allowing for both bedside positioning and mobile use, greatly improving convenience; the device's staggered design, with tube clamps having opposite opening directions, can firmly clamp the drainage tube, preventing slippage and ensuring reliable stoppage; the stoppage rod is equipped with a limiting plate, which effectively prevents the tension spring from shifting between relaxed and tensile states, stabilizing the position of the tension spring and ensuring the accuracy of volume control. Attached Figure Description

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the back structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a disassembled schematic diagram of the internal structure of the present invention; Figure 5 This is a schematic diagram of the box lid structure of the present invention; Figure 6 This is a schematic diagram of the suspension clamp structure of the present invention; In the diagram: 1. Base box; 2. Box cover; 3. Adjusting rod; 4. Cut-off pulley; 5. Winding pulley; 6. Tension spring; 7. Adjusting nut; 8. Suspension clamp; 9. Hanging ring; 11. Fixing seat; 12. Guide bar; 13. Connecting seat; 14. Wire hole; 15. Cut-off block; 16. Cut-off groove; 17. Pipe clamp; 18. Sealing screw; 19. Mounting seat; 21. Indicator groove; 22. Reset groove; 23. Reinforcing bar; 24. Connecting rod; 25. Card groove; 31. Indicator slider; 32. Guide block; 41. Wheel body one; 42. Cut-off rod; 43. Limiting plate; 44. Wire binding groove; 45. Lifting line; 46. Hook; 51. Wheel body two; 52. Bearing; 53. Mounting bolt; 81. Straight plate; 82. Bent hook plate. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0018] A medical controlled drainage interception device includes a housing, an interception clamp, and a drive assembly. The interception clamp is disposed on the outer wall of the housing, and the drive assembly is installed in the inner cavity of the housing. The drive assembly is driven and connected to the interception clamp. A drainage bag is suspended on the drive assembly, and a drainage tube is clamped in the clamp of the interception clamp. The increased weight of the drainage bag pulls the drive assembly to deform to the interception threshold position, and the drive assembly drives the interception clamp to spring and close, thereby performing the interception work on the drainage tube.

[0019] The drive assembly includes an adjusting rod 3, a tension spring 6, and a flow-cutting wheel system. The adjusting rod 3 is slidably inserted into the top wall of the outer casing, and the flow-cutting wheel system is rotatably installed in the inner cavity of the outer casing. The tension spring 6 is obliquely hung between the end of the adjusting rod 3 and the flow-cutting wheel system. Adjusting the insertion amount of the adjusting rod 3 into the outer casing is achieved by the tension spring 6 pulling the flow-cutting wheel system to rotate, thereby adjusting the position of the flow-cutting threshold and thus adjusting the value of the flow-cutting threshold.

[0020] The flow-stopping wheel system includes a flow-stopping pulley 4 and a winding pulley 5. Both the flow-stopping pulley 4 and the winding pulley 5 are rotatably mounted in the outer casing, with the flow-stopping pulley 4 and the winding pulley 5 offset from each other. A stop rod 42 is fixedly mounted on the flow-stopping pulley 4. The axis of the stop rod 42 is parallel to the rotation axis of the flow-stopping pulley 4. The working end of the stop rod 42 extends through a flow-stopping groove 16 formed in the outer casing. The flow-stopping groove 16 is located on the front or rear wall of the outer casing and is positioned along the movement trajectory of the stop rod 42. A stop block 15 is located at the end of the flow-stopping groove 16. The working end of the stop rod 42 and the stop block 15 together form a stop clamp. A stop rod 42 is fixedly mounted on the flow-stopping pulley 4. A reset rod is provided, the axis of which is parallel to the rotation axis of the flow-stopping pulley 4. The holding end of the reset rod passes through the reset groove 22 that is opened through the outer shell. The reset groove 22 is set on the front or rear wall of the outer shell and is set along the movement trajectory of the reset rod. The stop rod 42 and the reset rod are located on the same side or opposite side of the flow-stopping pulley 4. When the stop rod 42 and the reset rod are on the same side, the stop rod 42 is the reset rod, and the flow-stopping groove 16 is the reset groove 22. When the stop rod 42 and the reset rod are on opposite sides, the stop rod 42 and the reset rod are respectively located on the two end faces of the flow-stopping pulley 4. The stop rod 42 and the reset rod are coaxial or eccentrically set.

[0021] The stop rod 42 is fixedly equipped with a lifting line 45, which is wound around the flow-stopping pulley 4 and the winding pulley 5. The end of the lifting line 45 passes through the lower wall of the outer shell and is equipped with a fixed hook 46. The drainage bag is hung on the hook 46, and the drainage tube is clamped in the gap between the working end of the stop rod 42 and the stop block 15.

[0022] The drainage bag is suspended on the hook 46. The drainage tube continuously drains the accumulated fluid into the drainage bag. The weight of the drainage bag continues to increase and pulls down the hook 46. When the weight of the drainage bag reaches the interception threshold, the interception pulley 4 rotates to the threshold position and rotates rapidly under the pull of the tension spring 6. The stop rod 42 then closes with the stop block 15 to intercept the drainage tube.

[0023] The sliding axis of the adjusting rod 3 and the rotation axis of the throttling pulley 4 are located in the same longitudinal plane and are perpendicular to each other. The throttling threshold position is located in the plane where the axis of the adjusting rod 3 and the axis of the throttling pulley 4 coexist and is directly below the axis of the throttling pulley 4. When the stop rod 42 moves to the threshold position, the tension spring 6 is stretched to its maximum. After the stop rod 42 passes the threshold position, the tension spring 6 retracts, thereby pulling the stop rod 42 to move quickly and cooperate with the stop block 15 to perform the stop operation. By moving the reset rod, the rotation of the throttling pulley 4 can be reset, and the operation can be put into a state of repeated stop operation.

[0024] The height of the stop block 15 is greater than the width of the drainage tube when it is clamped and cut off, so as to ensure effective cutting off of the drainage tube. The working end of the stop rod 42 is preferably flush with the top of the stop block 15. In order to fully prevent the drainage tube from sliding out between the stop block 15 and the working end of the stop rod 42, a limiting block can be added to the top of the stop block 15. The limiting block protrudes towards the direction of the cutting groove 16. When the limiting block is added, there is no interference between the working end of the stop rod 42 and the limiting block.

[0025] The working surfaces of the stop rod 42 and the stop block 15, which cooperate to clamp and stop the flow, are both machined into an arc shape, which can stably stop the flow while avoiding damage to the drainage pipe.

[0026] The outer casing includes a bottom box 1 and a lid 2. The bottom box 1 is open at the front, and the lid 2 is fixedly installed on the open front of the bottom box 1. Two fixed seats 11 are fixedly protruding on the rear wall of the bottom box 1. The axes of the two fixed seats 11 are perpendicular to the rear wall of the bottom box 1. The flow-blocking pulley 4 and the winding pulley 5 are respectively rotatably mounted on the two fixed seats 11 through bearings 52.

[0027] Both fixed seats 11 have threaded holes along their axes at their suspended ends. The flow-cutting pulley 4 and the winding pulley 5 are detachably mounted on the two fixed seats 11 by a mounting bolt 53. A through-hole 14 is provided on one side edge of the lower wall of the bottom box 1. The lifting line 45 passes through the through-hole 14 to the outside of the bottom box 1. The flow-cutting groove 16 is provided on the bottom box 1 or the box cover 2. The reset groove 22 is provided on the bottom box 1 or the box cover 2.

[0028] When the stop lever 42 and the reset lever are on the same side, the stop lever 42 is the reset lever. If the stop lever 42 faces the front of the outer casing, the flow-blocking groove 16 is the reset groove 22 and is set on the cover 2. If the stop lever 42 faces the rear, the flow-blocking groove 16 is set on the bottom box 1, and the stop block 15 is set on the cover 2 or the bottom box 1 along with the flow-blocking groove 16. When the stop lever 42 and the reset lever are on opposite sides, if the stop lever 42 faces the front of the outer casing, the reset lever faces the rear of the outer casing. In this case, the flow-blocking groove 16 is set on the cover 2, and the reset groove 22 is set on the bottom box 1. Conversely, when the stop lever 42 faces the rear of the outer casing and the reset lever faces the front of the outer casing, the flow-blocking groove 16 is set on the bottom box 1, and the reset groove 22 is set on the cover 2.

[0029] The intercepting groove 16 is an arc shape concentric with the intercepting pulley 4. The end of the intercepting groove 16 near the wire hole 14 is the intercepting end. The intercepting block 15 is set close to the edge of the intercepting end. The other end of the intercepting groove 16 away from the wire hole 14 is the starting end. The intercepting rod 42 moves to the intercepting end and cooperates with the intercepting block 15 to perform the intercepting work. After the intercepting work is completed, the reset rod is held and the intercepting pulley 4 is rotated to reset.

[0030] Connecting seats 13 are fixedly installed at the four corners of the inner side of the bottom box 1. Connecting rods 24 are fixedly installed at the four corners of the box cover 2 that are aligned with the multiple connecting seats 13. The multiple connecting rods 24 protrude outside the box cover 2. When the box cover 2 is installed on the bottom box 1, the multiple connecting rods 24 are inserted into the bottom box 1 and abut against each connecting seat 13 respectively. Each connecting seat 13 has a connecting hole 1 that passes through the inside and outside of the bottom box 1. Each connecting rod 24 has a blind hole 2 that is aligned with the connecting hole. Each pair of corresponding connecting holes 1 and connecting holes 2 is fixedly screwed into a sealing screw 18 to achieve a fixed connection between the box cover 2 and the bottom box 1.

[0031] The medical volume control drainage interception device also includes a volume adjustment nut 7. The body of the volume adjustment rod 3 is a threaded rod. The volume adjustment rod 3 is slidably inserted into the insertion hole opened in the top wall of the bottom box 1. A limiting seat is fixedly set on the outside of the top wall of the bottom box 1. The volume adjustment nut 7 is rotated and fitted on the limiting seat and threadedly connected to the volume adjustment rod 3. Tightening the volume adjustment nut 7 can drive the volume adjustment rod 3 to slide along the insertion hole, thereby adjusting the insertion amount in the bottom box 1, thereby adjusting the interception threshold. The display end of the volume adjustment rod 3 is located inside the bottom box 1. The tension spring 6 is hooked to the end of the display end of the volume adjustment rod 3. An indicator slider 31 is fixedly set on the display end of the volume adjustment rod 3. A display groove 21 is opened through the box cover 2 in the front-back direction. The indicator slider 31 is slidably inserted in the display groove 21. The indicator tip of the indicator slider 31 points to the scale line of the display groove 21.

[0032] The display slot 21 and reset slot 22 are both surrounded by reinforcing strips 23 on the edge facing the bottom box 1. Since the box cover 2 is a thin-walled structure, the reinforcing strips 23 can effectively improve the local structural strength of the box cover 2 and extend the service life of the device. A card slot 25 is fixedly provided on the outer surface of the box cover 2. Cards such as instructions for use, patient name tags, and drainage precautions can be inserted into the card slot 25 to improve the comfort and convenience of use.

[0033] The adjustable rod 3 is located inside the base box 1, and a guide block 32 is fixedly installed on the radially protruding end of the adjustable rod 3. Two guide strips 12 are fixedly installed on the rear wall of the base box 1 along the axial direction of the adjustable rod 3. The two guide strips 12 are clamped together to form a guide groove. The guide block 32 is slidably inserted into the guide groove. When the adjustable rod 3 is adjusted by the insertion amount, the guide block 32 slides in the guide groove, thereby preventing the adjustable rod 3 from rotating circumferentially. This ensures that the indicator slider 31 is stably inserted into the display groove 21 to provide accurate and stable numerical indication. The adjustable rod 3 is provided with a hanging hole at the display end, and one end of the tension spring 6 is hung in the hanging hole.

[0034] A through groove is provided on the circumferential side wall of the first wheel body 41 of the flow-stopping pulley 4, and a through groove is provided on the circumferential side wall of the second wheel body 51 of the winding pulley 5. The lifting line 45 is wound around the first groove and the second groove. A binding groove 44 is opened in the first wheel body 41. The binding groove 44 is arranged around the stop rod 42 and is connected to the first groove. The lifting line 45 is inserted into the binding groove 44 and fixedly bolted to the stop rod 42.

[0035] Two limiting plates 43 are provided on the side wall of the stop rod 42 where it is attached to the tension spring 6. The other end of the tension spring 6 is hooked in the gap between the two limiting plates 43. The two limiting plates 43 can effectively prevent the tension spring 6 from moving during the use of the device.

[0036] The medical flow control and interception device also includes a suspension clamp 8, which has a closed head and an open tail. The tail of the suspension clamp 8 is rotatably connected to the top of the bottom box 1, and one of the clamp plates of the suspension clamp 8 is bent into a hook.

[0037] The suspension clamp 8 includes a straight plate 81 and a hook plate 82. The middle section of the hook plate 82 is hinged to the middle section of the straight plate 81 by a pin. A torsion spring is mounted on the pin. The two arms of the torsion spring abut against the surfaces of the hook plate 82 and the straight plate 81 facing each other. A mounting seat 19 is fixedly protruding from the outer side of the top wall of the bottom box 1. The tail of the straight plate 81 is rotatably hinged to the mounting seat 19. The head of the hook plate 82 is extended and bent in an arc shape towards the side away from the straight plate 81 to form a hook.

[0038] When the device is used at a fixed location, such as when the user is in bed, the hook on the head of the hook plate 82 can be hung on the bed. When the device is used while the user is at ease, using the hook is inconvenient. In this case, rotate the suspension clip 8 so that the straight plate 81 faces the user and hang the suspension clip 8 on the user's clothing.

[0039] The medical controlled drainage and interception device also includes two hanging rings 9. The two hanging rings 9 are symmetrically arranged and rotatably installed on the two side walls of the base box 1. Both hanging rings 9 are rotatably installed on the two side walls near the top wall. The two hanging rings 9 are movably attached with a shoulder strap. The shoulder strap is a purchased single-shoulder strap. It can be a nylon strap with adjustable length and hooks at both ends. The shoulder strap is preferably used when the device is used in person. It can be used in different forms such as shoulder strap or waist belt. The different forms can be switched by adjusting the length.

[0040] Multiple pipe clamps 17 are fixedly installed on the outer side of the rear wall of the bottom box 1. Each pipe clamp 17 has a side opening, and the openings of adjacent pipe clamps 17 are arranged in opposite directions. The slot of each pipe clamp 17 is matched with the cylindrical drainage tube. The opening of each pipe clamp 17 is smaller than the inner diameter of the slot. The drainage tube is inserted into the slot of the pipe clamp 17 and will not come out on its own without being pulled. The attached drawings of the instruction manual show that two pipe clamps 17 are set, and the openings of the two pipe clamps 17 are arranged in opposite directions. The body of the drainage tube is respectively embedded in the two pipe clamps 17. The drainage tube between the two pipe clamps 17 is set between the working end of the stop rod 42 and the stop block 15. The pipe clamps 17 ensure that the drainage tube stays stably on the device so that the device can perform the flow cut-off process.

[0041] The bottom box 1 and the lid 2 are preferably manufactured by injection molding, which can ensure that the overall weight of the device is reduced and the burden of carrying it around is reduced.

[0042] The adjusting rod 3, the flow-stopping pulley 4, the winding pulley 5, the fixing seat 11, and the stop block 15 are preferably made of metal to ensure structural strength. The fixing seat 11 and the stop block 15 are injection molded and encapsulated in the bottom box 1.

[0043] Working principle: When using the device, verify that the stop lever 42 is at the starting end. Adjust the insertion depth of the regulating lever 3 according to the drainage volume required by the user's condition, thereby adjusting the cutoff threshold. Clamp the drainage tube in the tube clamp 17, ensuring that the drainage tube 17 is positioned between the stop lever 42 and the stop block 15. The drainage bag is suspended on the hook 46. The device is hung on the hospital bed, bedside table, or patient's clothing via the suspension clamp 8, or carried on the patient's body using a baby carrier. Continuous drainage increases the weight of the drainage bag, causing it to pull down the hook 46. The hook 46, via the lifting line 45, pulls the stop lever 42 to move until it reaches the cutoff threshold position, where the cutoff is executed under the pull of the tension spring 6. At this point, the drainage process requires no manual supervision; only timely drainage of the fluid in the drainage bag or replacement of the drainage bag is necessary.

[0044] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A medical controlled-flow drainage and interception device, characterized in that: The device includes a housing, a shut-off clamp, and a drive assembly. The shut-off clamp is mounted on the outer wall of the housing, and the drive assembly is installed in the inner cavity of the housing. The drive assembly is driven and connected to the shut-off clamp. The drainage bag is suspended on the drive assembly, and the drainage tube is clamped in the clamp of the shut-off clamp. The drainage bag increases in weight and pulls the drive assembly to deform to the shut-off threshold position. The drive assembly then drives the shut-off clamp to spring and close, thus performing the shut-off operation on the drainage tube.

2. The medical controlled-flow drainage and interception device according to claim 1, characterized in that: The drive assembly includes an adjustment rod (3), a tension spring (6), and a flow-cutting wheel system. The adjustment rod (3) is slidably inserted into the top wall of the outer shell, and the flow-cutting wheel system is rotatably installed in the inner cavity of the outer shell. The tension spring (6) is obliquely hung between the end of the adjustment rod (3) and the flow-cutting wheel system. Adjusting the insertion amount of the adjustment rod (3) on the outer shell is achieved by the tension spring (6) pulling the flow-cutting wheel system to rotate, thereby adjusting the position of the flow-cutting threshold and thus adjusting the value of the flow-cutting threshold.

3. The medical controlled drainage and interception device according to claim 2, characterized in that: The flow-stopping wheel system includes a flow-stopping pulley (4) and a winding pulley (5). Both the flow-stopping pulley (4) and the winding pulley (5) are rotatably mounted in the outer casing. The flow-stopping pulley (4) and the winding pulley (5) are offset from each other. A stop rod (42) is fixedly mounted on the flow-stopping pulley (4). The axis of the stop rod (42) is parallel to the rotation axis of the flow-stopping pulley (4). The working end of the stop rod (42) extends through a flow-stopping groove (16) opened in the outer casing. A stop block (15) is provided at the end of the flow-stopping groove (16). The working end of the stop rod (42) and the stop block (15) together form a stop clamp. A reset rod is fixedly installed on the flow-stopping pulley (4). The axis of the reset rod is parallel to the rotation axis of the flow-stopping pulley (4). The stop rod (42) and the reset rod are located on the same side or opposite side of the flow-stopping pulley (4). A lifting line (45) is fixedly installed on the stop rod (42). The lifting line (45) is wrapped around the flow-stopping pulley (4) and the winding pulley (5). The end of the lifting line (45) passes through the lower wall of the outer shell and is fixedly installed with a hook (46). The drainage bag is hung on the hook (46). The drainage tube is clamped in the gap between the working end of the stop rod (42) and the stop block (15).

4. A medical controlled-flow drainage and interception device according to claim 3, characterized in that: The outer casing includes a bottom box (1) and a lid (2). The bottom box (1) is open at the front, and the lid (2) is fixedly mounted on the open front of the bottom box (1). Two fixed seats (11) are fixedly protruding on the rear wall of the bottom box (1). The axes of the two fixed seats (11) are perpendicular to the rear wall of the bottom box (1). The flow-blocking pulley (4) and the winding pulley (5) are respectively rotatably mounted on the two fixed seats (11). The suspended ends of the two fixed seats (11) are both along the axis. The wire has a threaded hole. The flow-stopping pulley (4) and the winding pulley (5) are each detachably mounted on two fixed seats (11) by a mounting bolt (53). A through hole (14) is opened on one side edge of the lower wall of the bottom box (1). The lifting wire (45) passes through the through hole (14) to the outside of the bottom box (1). The flow-stopping groove (16) is opened on the bottom box (1) or the box cover (2). The reset groove (22) is opened on the bottom box (1) or the box cover (2).

5. A medical controlled-flow drainage and interception device according to claim 4, characterized in that: The medical volume control drainage interception device also includes a volume adjustment nut (7). The body of the volume adjustment rod (3) is a threaded rod. The volume adjustment rod (3) is slidably inserted into the insertion hole opened on the top wall of the bottom box (1). The insertion hole is fixedly provided with a limiting seat on the outside of the top wall of the bottom box (1). The volume adjustment nut (7) is rotated and fitted on the limiting seat and threadedly connected to the volume adjustment rod (3). The display end of the volume adjustment rod (3) is located inside the bottom box (1). The tension spring (6) is hooked on the end of the display end of the volume adjustment rod (3). The indicator slider (31) is fixedly provided on the display end of the volume adjustment rod (3). The display groove (21) is opened through the front and back direction on the box cover (2). The indicator slider (31) is slidably inserted in the display groove (21). The indicator tip of the indicator slider (31) points to the scale line of the display groove (21).

6. A medical controlled drainage and interception device according to claim 5, characterized in that: The adjustment rod (3) is located inside the bottom box (1) and a guide block (32) is fixedly installed on the radially protruding end of the indicator. Two guide strips (12) are fixedly installed on the rear wall of the bottom box (1) along the axial direction of the adjustment rod (3). The two guide strips (12) are clamped together to form a guide groove, and the guide block (32) is slidably inserted into the guide groove.

7. A medical controlled-flow drainage and interception device according to claim 6, characterized in that: A through groove is provided on the circumferential side wall of the first wheel body (41) of the intercepting pulley (4), and a through groove is provided on the circumferential side wall of the second wheel body (51) of the winding pulley (5). The lifting line (45) is wound around the first groove and the second groove. A binding groove (44) is opened in the first wheel body (41). The binding groove (44) is arranged around the stop rod (42) and is connected to the first groove. The lifting line (45) is inserted into the binding groove (44) and fixedly bolted to the stop rod (42).

8. A medical controlled-flow drainage and interception device according to claim 7, characterized in that: The medical flow control and drainage interception device also includes a suspension clamp (8), which has a closed head and an open tail. The tail of the suspension clamp (8) is rotatably connected to the top of the bottom box (1), and one of the clamp plates of the suspension clamp (8) is bent into a hook.

9. A medical controlled-flow drainage and interception device according to claim 8, characterized in that: The medical flow control and drainage interception device also includes two hanging rings (9). The two hanging rings (9) are symmetrically arranged and rotatably installed on the two side walls of the bottom box (1). The two hanging rings (9) are rotatably installed on the two side walls near the top wall. The two hanging rings (9) are movably hung with a back strap.

10. A medical controlled-flow drainage and interception device according to claim 9, characterized in that: Multiple pipe clamps (17) are fixedly installed on the outer side of the rear wall of the bottom box (1). Each pipe clamp (17) has a side opening, and the opening directions of adjacent pipe clamps (17) are opposite.

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