A drainage device for clinical nursing

Abstract

The present invention relates to the technical field of medical instruments, and discloses a drainage device for clinical nursing, comprising an outer cylinder, an inner cylinder movably arranged at the left end inside the outer cylinder, control holes evenly opened on the outer wall of the inner cylinder, suction holes evenly opened at the corresponding positions of the outer cylinder and the control holes, a drainage tube is connected through the center of the right side of the inner cylinder, the right end of the drainage tube extends to the outside of the outer cylinder and is plugged into the drainage tube; when in use, the outer cylinder is first inserted into the accumulated fluid in the patient's body, and then the negative pressure device is controlled to operate, the operation of the negative pressure device causes negative pressure to be generated in the drainage tube, the drainage tube and the inner cylinder, under the action of the negative pressure, the inner cylinder will move to the right and compress the first spring, the control holes on the outer wall of the inner cylinder moving to the right will gradually overlap with the suction holes on the outer wall of the outer cylinder, when the two are staggered, the accumulated fluid in the patient's body can enter the inner cylinder through the suction holes and the control holes, and then be discharged through the drainage tube and the drainage tube.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a drainage device used for clinical nursing. Background Art

[0002] Thoracic surgery is a branch of medicine that mainly studies organs in the chest cavity. After a patient undergoes a thoracic surgery, drainage is often required to discharge the effusion in the chest cavity to the outside of the body. In the prior art, many thoracic surgery patients need to carry drainage devices for a long time after surgery. However, carrying drainage devices for a long time makes the patients inconvenient to move, and the drainage tube may fall off if they are not careful. Re-inserting the drainage tube undoubtedly increases the pain of the patients.

[0003] To solve the above problems, the authorized patent with Chinese patent announcement number CN204521729U proposes a drainage device, including a tube body and a drainage bag, a conical head is provided on the top of the tube body, a drainage part is provided between the conical head and the tube body, an elastic support column is provided on the outer circumference of the drainage part between the conical head and the tube body, a rubber tube is provided at the rear end of the tube body, a drainage bag is provided at the lower end of the rubber tube, a drainage pipe is provided at the lower end of the drainage bag, the drainage bag is connected to the rubber tube through the drainage pipe, a connecting dredging pipe is also provided on the side of the drainage pipe, the drainage bag is marked with scales, a drainage pipe is provided at the lower end of the drainage bag, the lower end of the drainage pipe is connected to a negative pressure liquid storage chamber, and a drainage valve and a one-way exhaust valve are provided on the negative pressure liquid storage chamber. There are scales on the drainage bag for easy recording of values. A handle is provided on the top of the drainage bag to facilitate fixing the drainage bag and prevent the pipeline from being blocked, twisted, folded or falling out. The drainage bag is connected to the negative pressure liquid storage chamber to create a negative pressure environment and improve the drainage effect. The drainage bag effectively alleviates the condensation phenomenon during the liquid flow process.

[0004] In the above drainage device, the elastic support part can prevent the drainage device from falling off. However, in actual use, we found that it still has certain shortcomings, such as:

[0005] The anti-falling effect of the above drainage device is still poor, and the drainage device will still be displaced due to body movement. At the same time, the above drainage device does not have the anti-backflow effect, which easily leads to the reflux of the accumulated fluid;

[0006] Based on this, we proposed a drainage device for clinical care. Summary of the invention

[0007] 1. Technical issues to be solved

[0008] In view of the deficiencies in the prior art, the present invention provides a drainage device for clinical nursing, which has the advantages of good fixation effect and ability to prevent backflow.

[0009] (II) Technical solution

[0010] In order to achieve the above-mentioned purpose of a drainage device for clinical care, the present invention provides the following technical solution: a drainage device for clinical care, comprising an outer tube, an inner tube movably arranged at the left end inside the outer tube, control holes uniformly opened on the outer wall of the inner tube, and liquid suction holes uniformly opened at positions corresponding to the control holes of the outer tube;

[0011] A drainage tube is connected through the center of the right side of the inner tube, the right end of the drainage tube extends to the outside of the outer tube and is inserted into the drainage tube, the drainage tube is fixedly installed at the right end of the outer tube, and the end of the drainage tube is connected to a negative pressure device.

[0012] As a preferred technical solution of the present invention, a plug rod is fixedly installed at the edge of the right side of the inner tube, the plug rod is inserted in the positioning ring, and the positioning ring is fixedly installed on the inner wall of the outer tube;

[0013] The outer wall of the insert rod is also sleeved with a first spring, and the first spring is fixedly connected between the inner cylinder and the positioning ring.

[0014] As a preferred technical solution of the present invention, two cutoffs are formed on the outer cylinder, one on the left and one on the right. A first elastic pad is provided at the left cutoff, and a second elastic pad is provided at the right cutoff.

[0015] A first airbag ring is movably provided on the inner wall of the first elastic pad, and a second airbag ring is movably provided on the inner wall of the second elastic pad. A control mechanism arranged in the outer tube is used to control the expansion and contraction of the first airbag ring and the second airbag ring.

[0016] As a preferred technical solution of the present invention, the control mechanism includes a connecting tube, an air pipe, an air cylinder and a piston. The first airbag ring and the second airbag ring are connected to the air pipe through the connecting tube. The air pipe runs horizontally inside the outer cylinder. The right end of the air pipe is connected to the air cylinder. A piston is movably provided on the inner wall of the air cylinder.

[0017] As a preferred technical solution of the present invention, a push rod is fixedly installed on the right side of the piston, the right end of the push rod passes through the air cylinder and the outer cylinder to the outside of the outer cylinder and is movably connected with a threaded rotating ring, and the threaded rotating ring is threadedly connected to the outer wall of the discharge pipe.

[0018] As a preferred technical solution of the present invention, the two cuts divide the outer cylinder into a left cylinder, a middle cylinder and a right cylinder. The left cylinder and the middle cylinder are fixedly connected by a first fixing rod, and the right cylinder and the middle cylinder are fixedly connected by a second fixing rod.

[0019] As a preferred technical solution of the present invention, the outer wall of the drain pipe is connected with a branch pipe, the inner wall of the branch pipe is fixedly installed with a support ring, the top of the support ring is movably provided with a valve plug, and the top of the valve plug is fixedly connected to the inner top wall of the drain pipe through a second spring;

[0020] A vertical groove is formed at the bottom of the valve plug, a horizontal groove is formed at the top of the vertical groove, and the horizontal groove runs through the valve plug.

[0021] As a preferred technical solution of the present invention, a pull rod is fixedly installed on the top of the valve plug, and the top end of the pull rod extends to the outside of the drain pipe and is fixedly connected to a pull button.

[0022] As a preferred technical solution of the present invention, a side cavity is opened on the left side wall of the outer cylinder, a screw is rotatably arranged in the side cavity, a bearing is connected to the outer wall of the screw, and the bearing is fixedly installed on the left side wall of the side cavity;

[0023] The outer wall of the screw rod is threadedly connected with a nut, the nut is slidably arranged on a limiting rod, the limiting rod is fixedly mounted on the left side wall of the side cavity, and a control rod is fixedly mounted on the right side of the nut.

[0024] As a preferred technical solution of the present invention, a rotating rod is fixedly installed on the left end of the screw rod, and the rotating rod is arranged outside the outer tube. A thorn cone is movably connected to the left end of the outer tube, and the outer wall of the thorn cone is provided with a rod groove corresponding to the rotating rod.

[0025] (III) Beneficial effects

[0026] Compared with the prior art, the present invention provides a drainage device for clinical nursing, which has the following beneficial effects:

[0027] 1. When the drainage device for clinical nursing is used, the outer cylinder is first inserted into the fluid accumulation in the patient's body, and then the negative pressure device is controlled to operate. The operation of the negative pressure device generates negative pressure in the discharge tube, the drainage tube and the inner cylinder. Under the action of the negative pressure, the inner cylinder will move to the right and compress the first spring. The control hole on the outer wall of the inner cylinder moving to the right will gradually overlap with the suction hole on the outer wall of the outer cylinder. When the two are staggered, the accumulated fluid in the patient's body can enter the inner cylinder through the suction hole and the control hole, and then be discharged through the drainage tube and the discharge tube. After the drainage is completed, the negative pressure device stops running, and the inner cylinder will return to its original position under the elastic force of the first spring. The control hole and the suction hole are also staggered, thereby preventing the accumulated fluid from flowing back.

[0028] 2. When the drainage device used for clinical nursing is used to drain the chest cavity, the outer tube is first gradually inserted into the body, and the first elastic pad is located on one side of the ribs, and the second elastic pad is located on the other side of the ribs. Then, the threaded rotating ring on the drainage tube is twisted to move the threaded rotating ring toward the outer tube, so that the position of the outer tube can be stably fixed, which can prevent the outer tube from falling off and moving toward the body.

[0029] 3. The drainage device used for clinical nursing can drive the push rod to move by twisting the threaded rotating ring, and the movement of the push rod drives the piston to move. The movement of the piston can fill the air in the air cylinder into the first airbag ring and the second airbag ring through the trachea and the connecting tube, so that the first airbag ring and the second airbag ring are expanded and bulged. The expanded and bulged first airbag ring and the second airbag ring can lift up the first elastic pad and the second elastic pad, so that the first elastic pad and the second elastic pad are evenly expanded on both sides of the ribs, thereby fixing the position of the outer tube, which can prevent the outer tube from falling off and prevent the outer tube from moving toward the body to damage organs.

[0030] 4. The drainage device used for clinical nursing can discharge the accumulated fluid through the drainage tube. Pulling the pull button upward can move the valve plug upward. At this time, the second spring is compressed. After the valve plug moves upward, part of the accumulated fluid flowing out of the drainage tube can be discharged from the branch pipe through the horizontal groove and the vertical groove. Therefore, the accumulated fluid in the patient's body can be sampled and tested at any time, which improves work efficiency.

[0031] 5. The drainage device used for clinical care, remove the thorn cone to expose the rotating rod, then the rotating rod can be twisted to rotate the screw rod, the rotation of the screw rod drives the nut to move left and right, when the nut moves to the right, it can push the inner tube to the right, without the effect of negative pressure, the control hole on the inner tube and the suction hole on the outer tube can be overlapped, at this time it is convenient to backwash the entire drainage device to keep the drainage device clean.

[0032] 6. When backwashing, the drainage device used for clinical care can be backwashed by introducing flushing liquid from the branch pipe. The flushing liquid introduced into the branch pipe lifts the valve plug and enters the drain pipe through the vertical groove and the horizontal groove, and then is discharged from the control hole and the suction hole through the drainage pipe and the inner tube. The drainage device can be flushed in all directions, which is more convenient to clean and improves the work efficiency of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0035] Figure 3 It is a front cross-sectional view of the overall structure of the present invention;

[0036] Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point A in the middle;

[0037] Figure 5 It is a cross-sectional view of the inner cylinder part of the present invention;

[0038] Figure 6 It is an enlarged schematic diagram of the gas cylinder part of the present invention;

[0039] Figure 7 A cross-sectional view of the gas cylinder portion of the present invention;

[0040] Figure 8 is a cross-sectional view of the liquid discharge pipe portion of the present invention;

[0041] Fig. 9 is a cross-sectional view of the branch pipe portion of the present invention;

[0042] Fig.10 It is an enlarged schematic diagram of the screw rod part of the present invention.

[0043] In the figure: 1. outer tube; 2. inner tube; 3. drainage tube; 4. drainage tube; 5. insertion rod; 6. positioning ring; 7. first spring; 8. control hole; 9. suction hole; 10. first elastic pad; 11. second elastic pad; 12. first air bag ring; 13. second air bag ring; 14. connecting tube; 15. air pipe; 16. air cylinder; 17. piston; 18. push rod; 19. threaded rotating ring; 20. first fixed rod; 21. second fixed rod; 22. branch pipe; 23. support ring; 24. valve plug; 25. vertical groove; 26. horizontal groove; 27. pull rod; 28. pull button; 29. ​​second spring; 30. spike; 31. side cavity; 32. screw rod; 33. bearing; 34. rotating rod; 35. rod groove; 36. nut; 37. limit rod; 38. control rod. DETAILED DESCRIPTION

[0044] Embodiment 1:

[0045] See also Figure 1-Figure 5 A drainage device for clinical nursing, comprising an outer tube 1, an inner tube 2 is movably arranged at the left end inside the outer tube 1, control holes 8 are evenly opened on the outer wall of the inner tube 2, and suction holes 9 are evenly opened at the corresponding positions of the outer tube 1 and the control holes 8. When the control holes 8 and the suction holes 9 are staggered, the accumulated liquid outside the outer tube 1 cannot enter, and the accumulated liquid inside the inner tube 2 cannot be discharged. When the control holes 8 and the suction holes 9 coincide with each other, the accumulated liquid outside the outer tube 1 can enter the inner tube 2 through the control holes 8 and the suction holes 9;

[0046] A drainage tube 3 is connected through the center of the right side of the inner tube 2. The right end of the drainage tube 3 extends to the outside of the outer tube 1 and is inserted into the drainage tube 4. The drainage tube 4 is fixedly installed at the right end of the outer tube 1. The end of the drainage tube 4 is connected to a negative pressure device. In this embodiment, the negative pressure device is a suction pump.

[0047] like Figure 4 As shown, a plug rod 5 is fixedly installed at the edge of the right side of the inner tube 2, and the plug rod 5 is inserted in the positioning ring 6, and the positioning ring 6 is fixedly installed on the inner wall of the outer tube 1. The outer wall of the plug rod 5 is also sleeved with a first spring 7, and the first spring 7 is fixedly connected between the inner tube 2 and the positioning ring 6;

[0048] When in use, first insert the outer tube 1 into the fluid accumulation in the patient's body, and then control the operation of the negative pressure device. The operation of the negative pressure device generates negative pressure in the discharge tube 4, the drainage tube 3 and the inner tube 2. Under the action of the negative pressure, the inner tube 2 will move to the right and compress the first spring 7. The control hole 8 on the outer wall of the inner tube 2 moving to the right will gradually overlap with the suction hole 9 on the outer wall of the outer tube 1. When the two are staggered, the accumulated fluid in the patient's body can enter the inner tube 2 through the suction hole 9 and the control hole 8, and then be discharged through the drainage tube 3 and the discharge tube 4. After the drainage is completed, the negative pressure device stops running, and the inner tube 2 will return to its original position under the elastic force of the first spring 7. The control hole 8 and the suction hole 9 are also staggered, thereby preventing the accumulated fluid from flowing back.

[0049] Embodiment 2:

[0050] See also Figure 6 and Figure 7 On the basis of the first embodiment, two cuts are formed on the outer tube 1, one on the left and one on the right. A first elastic pad 10 is provided at the left cut, and a second elastic pad 11 is provided at the right cut. A first airbag ring 12 is movably provided on the inner wall of the first elastic pad 10, and a second airbag ring 13 is movably provided on the inner wall of the second elastic pad 11. A control mechanism is provided in the outer tube 1 for controlling the expansion and contraction of the first airbag ring 12 and the second airbag ring 13.

[0051] In this embodiment, please refer to Figure 6 and Figure 7 The control mechanism includes a connecting tube 14, an air tube 15, an air cylinder 16 and a piston 17. The first air bag ring 12 and the second air bag ring 13 are connected to the air tube 15 through the connecting tube 14. The air tube 15 runs across the outer tube 1. The right end of the air tube 15 is connected to the air cylinder 16. The inner wall of the air cylinder 16 is movably provided with a piston 17. A push rod 18 is fixedly installed on the right side of the piston 17. The right end of the push rod 18 passes through the air cylinder 16 and the outer tube 1 to extend to the outside of the outer tube 1 and is movably connected to a threaded rotating ring 19. The threaded rotating ring 19 is threadedly connected to the outer wall of the discharge pipe 4.

[0052] When draining the chest cavity, first gradually insert the outer tube 1 into the body, and make the first elastic pad 10 be located on one side of the ribs, and the second elastic pad 11 be located on the other side of the ribs, and then twist the threaded rotating ring 19 on the drainage tube 4 to move the threaded rotating ring 19 toward the outer tube 1, so that the position of the outer tube 1 can be stably fixed, which can prevent the outer tube 1 from falling off and moving toward the body;

[0053] Specifically: twisting the threaded rotating ring 19 can drive the push rod 18 to move, and the movement of the push rod 18 pushes the piston 17 to move. The movement of the piston 17 can fill the air in the air cylinder 16 into the first air bag ring 12 and the second air bag ring 13 through the trachea 15 and the connecting tube 14, so that the first air bag ring 12 and the second air bag ring 13 expand and swell. The expanded and swollen first air bag ring 12 and the second air bag ring 13 can push up the first elastic pad 10 and the second elastic pad 11, so that the first elastic pad 10 and the second elastic pad 11 are evenly expanded on both sides of the ribs, thereby fixing the position of the outer tube 1, which can prevent the outer tube 1 from falling off and prevent the outer tube 1 from moving toward the body and damaging organs;

[0054] like Figure 2 As shown, the two cuts divide the outer tube 1 into a left tube, a middle tube and a right tube. The left tube and the middle tube are fixedly connected by a first fixing rod 20, one end of the first fixing rod 20 is fixedly mounted on the outer wall of the positioning ring 6, and the other end of the first fixing rod 20 is fixedly mounted on the inner wall of the middle tube. The right tube and the middle tube are fixedly connected by a second fixing rod 21, one end of the second fixing rod 21 is fixedly mounted on the outer wall of the air cylinder 16, and the other end is fixedly mounted on the inner wall of the middle tube. Therefore, the left tube, the middle tube and the right tube can be stably connected by the first fixing rod 20 and the second fixing rod 21, so that the first elastic pad 10 and the second elastic pad 11 can maintain a stable relaxation state.

[0055] Embodiment three:

[0056] See also Figure 8-Figure 10 On the basis of the first or second embodiment, the outer wall of the drain pipe 4 is connected with a branch pipe 22, the inner wall of the branch pipe 22 is fixedly installed with a support ring 23, the top of the support ring 23 is movably provided with a valve plug 24, the top of the valve plug 24 is fixedly connected to the inner top wall of the drain pipe 4 through a second spring 29, a vertical groove 25 is provided at the bottom of the valve plug 24, a horizontal groove 26 is horizontally provided at the top of the vertical groove 25, and the horizontal groove 26 runs through the valve plug 24, a pull rod 27 is fixedly installed on the top of the valve plug 24, and the top end of the pull rod 27 extends to the outside of the drain pipe 4 and is fixedly connected with a pull button 28;

[0057] The drained accumulated fluid is discharged through the drainage pipe 4. Pulling the pull button 28 upward can make the valve plug 24 move upward. At this time, the second spring 29 is compressed. After the valve plug 24 moves upward, part of the accumulated fluid flowing out of the drainage pipe 4 can be discharged from the branch pipe 22 through the horizontal groove 26 and the vertical groove 25. Therefore, the accumulated fluid in the patient's body can be sampled and tested at any time, which improves the work efficiency.

[0058] A side cavity 31 is formed on the left side wall of the outer cylinder 1. A screw rod 32 is rotatably arranged in the side cavity 31. A bearing 33 is connected to the outer wall of the screw rod 32. The bearing 33 is fixedly mounted on the left side wall of the side cavity 31. The position of the screw rod 32 is fixed by the bearing 33, so that the rotation of the screw rod 32 is more stable.

[0059] The outer wall of the screw rod 32 is threadedly connected with a nut 36, and the nut 36 is slidably arranged on a limit rod 37, and the limit rod 37 is fixedly installed on the left side wall of the side cavity 31. The sliding arrangement of the nut 36 on the limit rod 37 limits the rotation of the nut 36, so that the nut 36 can only perform left and right translational movement driven by the screw rod 32;

[0060] A control rod 38 is fixedly installed on the right side of the screw nut 36, and a rotating rod 34 is fixedly installed on the left end of the screw rod 32. The rotating rod 34 is arranged outside the outer tube 1. The left end of the outer tube 1 is movably connected with a thorn cone 30. The outer wall of the thorn cone 30 is provided with a rod groove 35 corresponding to the rotating rod 34.

[0061] Remove the thorn cone 30 to expose the rotating rod 34. At this time, the rotating rod 34 can be twisted to rotate the screw rod 32. The rotation of the screw rod 32 drives the nut 36 to move left and right. When the nut 36 moves to the right, it can push the inner tube 2 to the right, and the control hole 8 on the inner tube 2 can be overlapped with the liquid suction hole 9 on the outer tube 1 without the effect of negative pressure. At this time, it is convenient to backwash the entire drainage device to keep the drainage device clean;

[0062] During backwashing, the flushing liquid is introduced from the branch pipe 22. The flushing liquid introduced into the branch pipe 22 lifts the valve plug 24 and enters the drain pipe 4 through the vertical groove 25 and the horizontal groove 26, and then is discharged from the control hole 8 and the suction hole 9 through the drainage pipe 3 and the inner tube 2. The drainage device can be flushed in all directions, which makes cleaning more convenient and improves the work efficiency of medical staff.

[0063] In this embodiment, the piercing cone 30 can be connected to the outer tube 1 by magnetic attraction or by bonding, and it can be set according to actual needs. The shape of the piercing cone 30 can also be set according to needs. It can be set to a flat head or a pointed head to facilitate piercing the drainage area.

[0064] The working principle and use process of the present invention:

[0065] When in use, first insert the outer tube 1 into the fluid accumulation in the patient's body, and then control the operation of the negative pressure device. The operation of the negative pressure device generates negative pressure in the discharge tube 4, the drainage tube 3 and the inner tube 2. Under the action of the negative pressure, the inner tube 2 will move to the right and compress the first spring 7. The control hole 8 on the outer wall of the inner tube 2 moving to the right will gradually overlap with the suction hole 9 on the outer wall of the outer tube 1. When the two are staggered, the accumulated fluid in the patient's body can enter the inner tube 2 through the suction hole 9 and the control hole 8, and then be discharged through the drainage tube 3 and the discharge tube 4. After the drainage is completed, the negative pressure device stops running, and the inner tube 2 will return to its original position under the elastic force of the first spring 7. The control hole 8 and the suction hole 9 are also staggered, thereby preventing the accumulated fluid from flowing back.

[0066] When draining the chest cavity, first gradually insert the outer tube 1 into the body, and make the first elastic pad 10 be located on one side of the ribs, and the second elastic pad 11 be located on the other side of the ribs, and then twist the threaded rotating ring 19 on the drainage tube 4 to move the threaded rotating ring 19 toward the outer tube 1, so that the position of the outer tube 1 can be stably fixed, which can prevent the outer tube 1 from falling off and moving toward the body;

[0067] Twisting the threaded rotating ring 19 can drive the push rod 18 to move, and the movement of the push rod 18 pushes the piston 17 to move. The movement of the piston 17 can fill the air in the air cylinder 16 into the first air bag ring 12 and the second air bag ring 13 through the trachea 15 and the connecting tube 14, so that the first air bag ring 12 and the second air bag ring 13 expand and swell. The expanded and swollen first air bag ring 12 and the second air bag ring 13 can push up the first elastic pad 10 and the second elastic pad 11, so that the first elastic pad 10 and the second elastic pad 11 are evenly expanded on both sides of the ribs, thereby fixing the position of the outer tube 1, which can prevent the outer tube 1 from falling off and prevent the outer tube 1 from moving toward the body and damaging the organs;

[0068] The drained accumulated fluid is discharged through the drainage pipe 4. Pulling the pull button 28 upward can make the valve plug 24 move upward. At this time, the second spring 29 is compressed. After the valve plug 24 moves upward, part of the accumulated fluid flowing out of the drainage pipe 4 can be discharged from the branch pipe 22 through the horizontal groove 26 and the vertical groove 25. Therefore, the accumulated fluid in the patient's body can be sampled and tested at any time, which improves the work efficiency.

[0069] Remove the thorn cone 30 to expose the rotating rod 34. At this time, the rotating rod 34 can be twisted to rotate the screw rod 32. The rotation of the screw rod 32 drives the nut 36 to move left and right. When the nut 36 moves to the right, it can push the inner tube 2 to the right, and the control hole 8 on the inner tube 2 can be overlapped with the liquid suction hole 9 on the outer tube 1 without the effect of negative pressure. At this time, it is convenient to backwash the entire drainage device to keep the drainage device clean;

[0070] During backwashing, the flushing liquid can be introduced from the branch pipe 22. The flushing liquid introduced into the branch pipe 22 lifts the valve plug 24 and enters the drain pipe 4 through the vertical groove 25 and the horizontal groove 26, and then is discharged from the control hole 8 and the suction hole 9 through the drainage pipe 3 and the inner tube 2. The drainage device can be flushed in all directions, which makes cleaning more convenient and improves the work efficiency of medical staff.

Claims

1. A drainage device for clinical nursing, comprising an outer tube (1), characterized in that: An inner cylinder (2) is movably arranged at the left end of the inner part of the outer cylinder (1), control holes (8) are evenly arranged on the outer wall of the inner cylinder (2), and liquid suction holes (9) are evenly arranged at positions corresponding to the control holes (8) of the outer cylinder (1); A drainage tube (3) is connected through the center of the right side of the inner tube (2); the right end of the drainage tube (3) extends to the outside of the outer tube (1) and is inserted into a drainage tube (4); the drainage tube (4) is fixedly mounted on the right end of the outer tube (1); and the end of the drainage tube (4) is connected to a negative pressure device; An insertion rod (5) is fixedly mounted on the right edge of the inner cylinder (2), the insertion rod (5) is inserted into a positioning ring (6), and the positioning ring (6) is fixedly mounted on the inner wall of the outer cylinder (1); The outer wall of the insertion rod (5) is also sleeved with a first spring (7), and the first spring (7) is fixedly connected between the inner cylinder (2) and the positioning ring (6); The outer cylinder (1) is formed with two cut-offs, one on the left and one on the right; a first elastic pad (10) is provided at the left cut-off, and a second elastic pad (11) is provided at the right cut-off; A first airbag ring (12) is movably provided on the inner wall of the first elastic pad (10), and a second airbag ring (13) is movably provided on the inner wall of the second elastic pad (11); a control mechanism disposed in the outer tube (1) is used to control the expansion and contraction of the first airbag ring (12) and the second airbag ring (13); The control mechanism comprises a connecting tube (14), an air pipe (15), an air cylinder (16) and a piston (17); the first air bag ring (12) and the second air bag ring (13) are connected to the air pipe (15) via the connecting tube (14); the air pipe (15) runs transversely through the outer tube (1); the right end of the air pipe (15) is connected to the air cylinder (16); and the inner wall of the air cylinder (16) is movably provided with a piston (17); A push rod (18) is fixedly mounted on the right side of the piston (17); the right end of the push rod (18) passes through the gas cylinder (16) and the outer cylinder (1) and extends to the outside of the outer cylinder (1) and is movably connected to a threaded rotating ring (19); the threaded rotating ring (19) is threadedly connected to the outer wall of the discharge pipe (4); The two cuts divide the outer cylinder (1) into a left cylinder, a middle cylinder and a right cylinder, the left cylinder and the middle cylinder are fixedly connected via a first fixing rod (20), and the right cylinder and the middle cylinder are fixedly connected via a second fixing rod (21); The outer wall of the liquid discharge pipe (4) is connected to a branch pipe (22), the inner wall of the branch pipe (22) is fixedly mounted with a support ring (23), the top of the support ring (23) is movably provided with a valve plug (24), and the top of the valve plug (24) is fixedly connected to the inner top wall of the liquid discharge pipe (4) via a second spring (29); A vertical groove (25) is formed at the bottom of the valve plug (24), a horizontal groove (26) is formed at the top of the vertical groove (25), and the horizontal groove (26) passes through the valve plug (24); A pull rod (27) is fixedly mounted on the top of the valve plug (24), and the top end of the pull rod (27) extends to the outside of the discharge pipe (4) and is fixedly connected to a pull button (28); A side cavity (31) is formed on the left side wall of the outer cylinder (1), a screw rod (32) is rotatably arranged in the side cavity (31), a bearing (33) is connected to the outer wall of the screw rod (32), and the bearing (33) is fixedly mounted on the left side wall of the side cavity (31); The outer wall of the screw rod (32) is threadedly connected to a screw nut (36), the screw nut (36) is slidably arranged on a limit rod (37), the limit rod (37) is fixedly mounted on the left side wall of the side cavity (31), and a control rod (38) is fixedly mounted on the right side of the screw nut (36).

2. A drainage device for clinical care according to claim 1, characterized in that: A rotating rod (34) is fixedly mounted on the left end of the screw rod (32), and the rotating rod (34) is arranged outside the outer tube (1). A thorn cone (30) is movably connected to the left end of the outer tube (1), and a rod groove (35) corresponding to the rotating rod (34) is formed on the outer wall of the thorn cone (30).

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