CN114146233A - Drainage device and drainage method for surgical operation - Google Patents

Abstract

The invention discloses a drainage device and a drainage method for surgical operation, belonging to the technical field of auxiliary tools for operation, comprising: a base plate; two receiving flasks, receiving flask swing joint be in the top of bottom plate, the receiving flask is used for storing the hydrops, through setting up the mechanism of bleeding, can take the air in the receiving flask out, make the pressure change in the receiving flask, and can stabilize the pressure of receiving flask, avoid making the patient cause the discomfort, can make in human tissue or the hydrops that gathers in the body cavity get into the receiving flask through the drainage tube in, through setting up non return mechanism, can be after drainage work, carry out the shutoff to the receiving flask, can avoid the pressure change in the receiving flask, lead to the hydrops to flow back to the human body, avoid influencing going on of operation work, through setting up fixed establishment, can be convenient for fix the drainage tube in the drainage position, can reduce medical personnel's intensity of labour, improve work efficiency.

Description

Drainage device and drainage method for surgical operation

Technical Field

The invention relates to the technical field of auxiliary tools for surgery, in particular to a drainage device and a drainage method for surgery.

Background

The surgery is a science for researching the occurrence and development rules and clinical manifestations of surgical diseases, diagnosing, preventing and treating, and is a treatment process that a professional department who mainly takes surgical excision and repair as a treatment means enters human bodies or other biological tissues through surgical equipment or surgical instruments under the operation of surgeons or other professionals to eliminate pathological changes, change structures or implant foreign matters in an external mode.

The drainage device can be used in surgical operations, the drainage device is used for guiding pus, blood, liquid and the like accumulated between human tissues or in a body cavity to the outside of the body, the existing drainage device is operated, the pus, the blood, the liquid and the like are guided to the outside of the body through a negative pressure ball, a negative pressure bottle or a manual push-pull type negative pressure tube, and through manual operation, the drainage risk caused by unstable negative pressure can be generated, so that the drainage efficiency is reduced, the body of a patient bears uncomfortable conditions, and after the drainage tube enters a drainage area, the drainage is performed through the handheld drainage tube, long-time drainage not only enables medical staff to be easy to fatigue, but also can influence the efficiency of the operations, and after the drainage operation is finished, the pus, the blood, the liquid and the like can be easily refluxed to the inside of the human body due to the change of pressure, and the operation work is not beneficial to the implementation of the operations.

Therefore, a surgical drainage device and a drainage method are needed to meet the needs of users.

Disclosure of Invention

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the title of the invention of this application some simplifications or omissions may be made to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the problems occurring in the conventional drainage device.

To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions: a surgical drainage device comprising:

a base plate;

the collection bottles are movably connected to the top of the bottom plate and used for storing accumulated liquid;

the drainage tube is fixedly communicated with the top of the collecting bottle, the bottom of the drainage tube extends to the inside of the collecting bottle, and the drainage tube is used for draining effusion into the collecting bottle;

the air exhaust mechanism is fixedly connected to the top of the bottom plate and is used for exhausting air in the collecting bottle;

the non-return mechanism is fixedly communicated with the bottom of the drainage tube and is used for preventing the accumulated liquid from flowing back;

the fixing mechanism is movably connected to the surface of the drainage tube and used for fixing the drainage tube.

As a preferable aspect of the surgical drainage device according to the present invention, wherein: air exhaust mechanism includes support frame, motor, transmission shaft, carousel, pivot, connecting rod, exhaust tube and piston, the bottom of support frame with the top fixed connection of bottom plate, the top of support frame with the bottom fixed connection of motor, the transmission shaft is close to one side of motor with the output fixed connection of motor, the transmission shaft is close to one side and the carousel fixed connection of carousel, pivot fixed connection is in one side that the transmission shaft was kept away from to the carousel, the pivot is close to one side and connecting rod fixed connection of connecting rod, the other end of connecting rod with piston swing joint, the surface of piston with the inner wall swing joint of exhaust tube.

As a preferable aspect of the surgical drainage device according to the present invention, wherein: non return mechanism is including fixed pipe, check plate, dead lever, movable rod, torque spring and stopper, the fixed intercommunication of fixed pipe is in the inside of the bottom of drainage tube, the dead lever is close to one side of fixed inside pipe wall with fixed pipe fixed connection, the inner wall of movable rod with the surface movable contact of dead lever, the movable rod is close to one side of check plate with check plate fixed connection, the torque spring cover is established the surface of dead lever, torque spring is close to one side of check plate with check plate fixed connection, the surface of check plate with the inner wall contact of fixed pipe, the stopper is close to one side and fixed pipe fixed connection of fixed inside pipe wall, the stopper is close to one side of check plate with the check plate contact.

As a preferable aspect of the surgical drainage device according to the present invention, wherein: the fixing mechanism comprises two arc-shaped fixing blocks, a reset spring, a connecting plate and a sucker, wherein the arc-shaped fixing block is close to one side of the drainage tube and contacts with the drainage tube, the reset spring is fixedly connected inside the arc-shaped fixing block, the reset spring is close to one side of the inner wall of the arc-shaped fixing block and fixedly connected with the arc-shaped fixing block, the connecting plate is close to one side of the arc-shaped fixing block and fixedly connected with the arc-shaped fixing block, and the sucker is fixedly connected with the bottom of the connecting plate.

As a preferable aspect of the surgical drainage device according to the present invention, wherein: the surface of motor covers there is the safety cover, the bottom of safety cover with the top fixed connection of bottom plate, the fixed intercommunication in top of exhaust tube has the connecting pipe, the top of connecting pipe extends to the top of safety cover and with the fixed intercommunication of collecting bottle.

As a preferable aspect of the surgical drainage device according to the present invention, wherein: the connecting rod is close to the inside swing joint of piston one side has the connecting rod, the connecting rod is close to one side of piston inner wall run through the inside of connecting rod and with the inner wall fixed connection of piston.

As a preferable aspect of the surgical drainage device according to the present invention, wherein: the surface of the fixed rod is fixedly connected with a fixed plate, and one side of the fixed plate, which is close to the torsion spring, is fixedly connected with the torsion spring.

A drainage method of the surgical drainage device as described above, comprising the steps of:

s1, before drainage work, moving two arc-shaped fixed blocks in opposite directions, driving a reset spring to stretch by the arc-shaped fixed blocks, sleeving the arc-shaped fixed blocks on the surface of a drainage tube, resetting by the reset spring, driving the two arc-shaped fixed blocks to move in opposite directions and contact with the drainage tube by the reset spring, and fixing the drainage tube at a drainage position by a sucker;

s2, when drainage is carried out, the motor drives the transmission shaft to rotate, the transmission shaft drives the rotary table to rotate, the rotary table drives the rotary shaft to rotate, the rotary shaft can drive the connecting rod to rotate circumferentially, the piston can move in the air exhaust pipe in a reciprocating mode, air in the air exhaust pipe can be exhausted, air in the collecting bottle can be exhausted, and accumulated liquid can enter the collecting bottle through the drainage pipe;

s3, when carrying out drainage during operation, the hydrops passes through the drainage tube and gets into in the fixed pipe, and the hydrops promotes the activity of check plate, through the surface activity of movable rod at the fixed rod, can make two check plates fold to make torsion spring hold power, make the hydrops flow through the space between check plate and the fixed pipe, after drainage operation, reset through torsion spring, torsion spring drives two check plates and gets back to the normal position and contact with the stopper, carries out the shutoff to fixed pipe.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up the mechanism of bleeding, can take the air in the receiving flask out, make the pressure change in the receiving flask, and can stabilize the pressure of receiving flask, avoid making the patient cause the discomfort, can make the hydrops that gathers in human tissue or the coelom pass through in the drainage tube gets into the receiving flask, through setting up non return mechanism, can be after drainage work, carry out the shutoff to the receiving flask, can avoid the pressure change in the receiving flask, lead to the hydrops to flow back to the human body, influence going on of operation work, through setting up fixed establishment, can be convenient for fix the drainage tube in the drainage position, can reduce medical personnel's intensity of labour, and the work efficiency is improved.

2. Through the support frame, can support and fix the motor, when carrying out the drainage, drive the transmission shaft through the motor and rotate, the transmission shaft drives the carousel and rotates, and the carousel can drive the pivot again and rotate, can make the pivot drive the connecting rod and rotate, makes the piston reciprocating motion in the air-bleed, can be with the air escape in the air-bleed to change the pressure in the collecting bottle, make things convenient for the hydrops to pass through in the drainage tube gets into the collecting bottle.

3. Through the fixed tube, can make things convenient for the hydrops to get into the inside of receiving flask through the fixed tube, get into in the fixed tube through the hydrops, the hydrops promotes the activity of check plate, can make two check plates fold, and make torsion spring hold power, can make the hydrops get into the receiving flask in, after drainage work, reset through torsion spring, torsion spring drives two check plates and gets back to the normal position, can carry out the shutoff to the fixed tube, can be when the receiving flask internal pressure changes, can prevent that the hydrops from flowing back to the human body through the drainage tube, influence going on of operation work.

4. Through setting up the arc fixed block, can fix the drainage tube to can fix the drainage tube of difference, facilitate the use, through reset spring, can make the arc fixed block hug closely on the surface of drainage tube, avoid the arc fixed block to remove, influence fixed effect, through the sucking disc, can conveniently fix the drainage tube in the drainage position, can reduce medical personnel's intensity of labour.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:

FIG. 1 is a schematic view showing the overall construction of a surgical drainage apparatus according to the present invention;

FIG. 2 is a schematic structural view of an air suction mechanism of a surgical drainage device according to the present invention;

FIG. 3 is a partial cross-sectional view of the suction mechanism of a surgical drainage device of the present invention;

FIG. 4 is a partial schematic view of the non-return mechanism of the surgical drainage device of the present invention;

FIG. 5 is a cross-sectional view of a non-return mechanism of a surgical drainage device in accordance with the present invention;

FIG. 6 is a schematic view of the structure of a drainage tube and a fixing mechanism of the surgical drainage device of the present invention;

FIG. 7 is a cross-sectional view of the bottom of a surgical drainage device mounting mechanism of the present invention;

FIG. 8 is a flow chart of a surgical drainage method of the present invention.

Reference numbers in the figures: 1. a base plate; 2. an air extraction mechanism; 201. a support frame; 202. a motor; 203. a drive shaft; 204. a turntable; 205. a rotating shaft; 206. an air exhaust pipe; 207. a piston; 208. a connecting rod; 3. a non-return mechanism; 301. a fixed tube; 302. a check plate; 303. fixing the rod; 304. a movable rod; 305. a torsion spring; 306. a limiting block; 4. a fixing mechanism; 401. an arc-shaped fixed block; 402. a return spring; 403. A connecting plate; 404. a suction cup; 5. a collection bottle; 6. a drainage tube; 7. a protective cover; 8. a connecting pipe; 9. A fixing plate; 10. a connecting rod.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Examples

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 8, a surgical drainage device includes:

a base plate 1;

the collection bottles 5 are movably connected to the top of the bottom plate 1, and the collection bottles 5 are used for storing accumulated liquid;

the drainage tube 6 is fixedly communicated with the top of the collecting bottle 5, the bottom of the drainage tube 6 extends into the collecting bottle 5, and the drainage tube 6 is used for draining the effusion into the collecting bottle 5;

the air exhaust mechanism 2 is fixedly connected to the top of the bottom plate 1, and the air exhaust mechanism 2 is used for exhausting air in the collecting bottle 5;

the non-return mechanism 3 is fixedly communicated with the bottom of the drainage tube 6, and the non-return mechanism 3 is used for preventing the accumulated liquid from flowing back;

the fixing mechanism 4 is movably connected to the surface of the drainage tube 6, and the fixing mechanism 4 is used for fixing the drainage tube 6.

In this example, the air extracting mechanism 2 includes a supporting frame 201, a motor 202, a transmission shaft 203, a turntable 204, a rotation shaft 205, a connection rod 208, an air extracting pipe 206 and a piston 207, the bottom of the supporting frame 201 is fixedly connected with the top of the bottom plate 1, the top of the supporting frame 201 is fixedly connected with the bottom of the motor 202, one side of the transmission shaft 203 close to the motor 202 is fixedly connected with the output end of the motor 202, one side of the transmission shaft 203 close to the turntable 204 is fixedly connected with the turntable 204, the rotation shaft 205 is fixedly connected with one side of the turntable 204 far from the transmission shaft 203, one side of the rotation shaft 205 close to the connection rod 208 is fixedly connected with the connection rod 208, the other end of the connection rod 208 is movably connected with the piston 207, the surface of the piston 207 is movably contacted with the inner wall of the air extracting pipe 206, the transmission shaft 203 is driven to rotate by the motor 202, the transmission shaft 203 can drive the turntable 204 to rotate, the rotation shaft 204 can drive the rotation shaft 205 to rotate, so that the rotation shaft 205 can drive the connection rod 208 to rotate, make piston 207 reciprocating motion in exhaust tube 206, can change the pressure in the receiving flask 5, make things convenient for the hydrops to pass through drainage tube 6 and get into in the receiving flask 5.

In this example, the check mechanism 3 includes a fixed tube 301, a check plate 302, a fixed rod 303, a movable rod 304, a torsion spring 305 and a limit block 306, the fixed tube 301 is fixedly connected to the bottom of the drainage tube 6, one side of the fixed rod 303 close to the inner wall of the fixed tube 301 is fixedly connected to the fixed tube 301, the inner wall of the movable rod 304 is movably contacted with the surface of the fixed rod 303, one side of the movable rod 304 close to the check plate 302 is fixedly connected to the check plate 302, the torsion spring 305 is sleeved on the surface of the fixed rod 303, one side of the torsion spring 305 close to the check plate 302 is fixedly connected to the check plate 302, the surface of the check plate 302 is contacted with the inner wall of the fixed tube 301, one side of the limit block 306 close to the inner wall of the fixed tube 301 is fixedly connected to the fixed tube 301, one side of the limit block 306 close to the check plate 302 is contacted to the check plate 302, and the accumulated liquid enters the fixed tube 301 to push the check plate 302 to move, can make two check boards 302 fold to make torsion spring 305 hold up power, can make the hydrops get into in the receiving flask 5, after drainage work, reset through torsion spring 305, torsion spring 305 drives two check boards 302 and gets back to the normal position, can carry out the shutoff to fixed pipe 301, can prevent that the hydrops from flowing back to the human body through drainage tube 6 when receiving flask 5 internal pressure changes, influence going on of operation work.

In this example, the fixing mechanism 4 includes two arc-shaped fixing blocks 401, a reset spring 402, a connecting plate 403 and a suction cup 404, one side of the arc-shaped fixing block 401 close to the drainage tube 6 is in contact with the drainage tube 6, the reset spring 402 is fixedly connected inside the arc-shaped fixing block 401, one side of the reset spring 402 close to the inner wall of the arc-shaped fixing block 401 is fixedly connected with the arc-shaped fixing block 401, one side of the connecting plate 403 close to the arc-shaped fixing block 401 is fixedly connected with the arc-shaped fixing block 401, the suction cup 404 is fixedly connected at the bottom of the connecting plate 403, the drainage tube 6 can be fixed by placing the arc-shaped fixing block 401, and different drainage tubes 6 can be fixed, so that the fixing mechanism is convenient to use, the arc-shaped fixing block 401 can be attached to the surface of the drainage tube 6 by resetting the reset spring 402, the movement of the arc-shaped fixing block 401 is avoided, the fixing effect is influenced, and then the drainage tube 6 can be conveniently fixed at the drainage position by the suction cup 404, thereby achieving the effect of reducing the labor intensity of medical care personnel.

In this example, the surface covering of motor 202 has protection cover 7, the bottom of protection cover 7 and the top fixed connection of bottom plate 1, the fixed intercommunication in top of exhaust tube 206 has connecting pipe 8, the top of connecting pipe 8 extends to the top of protection cover 7 and with the fixed intercommunication of receiving flask 5, through setting up protection cover 7, can protect motor 202, the factor of avoiding under the external environment leads to motor 202 to damage, influence going on of drainage work, through setting up connecting pipe 8, the air that piston 207 will be convenient for in the receiving flask 5 is taken out.

In this example, the connecting rod 10 is movably connected to the inside of the connecting rod 208 close to the piston 207, the side of the connecting rod 10 close to the inner wall of the piston 207 penetrates through the inside of the connecting rod 208 and is fixedly connected with the inner wall of the piston 207, and by arranging the connecting rod 10, the connecting rod 208 can move on the surface of the connecting rod 10, so that the connecting rod 208 can drive the piston 207 to move.

In this example, the fixed plate 9 is fixedly connected to the surface of the fixing rod 303, one side of the fixed plate 9 close to the torsion spring 305 is fixedly connected to the torsion spring 305, and by arranging the fixed plate 9, the torsion spring 305 can be conveniently and fixedly installed on the surface of the fixing rod 303, so that the torsion spring 305 can conveniently drive the check plate 302 to reset for plugging.

In this example, there is also disclosed a method of draining a surgical drainage device, comprising the steps of:

s1, before drainage work, moving two arc-shaped fixing blocks 401 in opposite directions, enabling the arc-shaped fixing blocks 401 to drive a return spring 402 to stretch, enabling the arc-shaped fixing blocks 401 to be sleeved on the surface of a drainage tube 6, enabling the arc-shaped fixing blocks 401 to be reset through the return spring 402, enabling the return spring 402 to drive the two arc-shaped fixing blocks 401 to move in opposite directions and to be in contact with the drainage tube 6, and fixing the drainage tube 6 at a drainage position through a sucking disc 404;

s2, when drainage is performed, the motor 202 drives the transmission shaft 203 to rotate, the transmission shaft 203 drives the turntable 204 to rotate, the turntable 204 drives the rotating shaft 205 to rotate, the rotating shaft 205 can drive the connecting rod 208 to perform circumferential rotation, the piston 207 can reciprocate in the exhaust tube 206, air in the exhaust tube 206 can be discharged, air in the collecting bottle 5 can be discharged, and accumulated liquid can enter the collecting bottle 5 through the drainage tube 6;

s3. when carrying out drainage during operation, the hydrops passes through drainage tube 6 and gets into in the fixed pipe 301, the hydrops promotes check plate 302 activity, through the surface activity of movable rod 304 at dead lever 303, can make two check plates fold, and make torsion spring 305 hold up power, make the hydrops flow out through the space between check plate 302 and the fixed pipe 301, after drainage operation, reset through torsion spring 305, torsion spring 305 drives two check plates 302 and gets back to the normal position and contact with stopper 306, carry out the shutoff to fixed pipe 301.

It should be noted that the invention is a surgical drainage device and method, first, two arc fixing blocks 401 are moved in opposite directions, the arc fixing block 401 drives a return spring 402 to stretch, the arc fixing block 401 is sleeved on the surface of a drainage tube 6, the return spring 402 is used for returning, the return spring 402 drives the two arc fixing blocks 401 to move in opposite directions and contact with the drainage tube 6, the drainage tube 6 is fixed at the drainage position through a suction cup 404, then the other end of the drainage tube 6 is connected with a collection bottle 5, a motor 202 drives a transmission shaft 203 to rotate, the transmission shaft 203 drives a turntable 204 to rotate, the turntable 204 drives a rotating shaft 205 to rotate, the rotating shaft 205 can drive a connecting rod 208 to rotate, a piston 207 is made to reciprocate in the suction tube 206, the air in the suction tube 206 can be discharged, and the air in the collection bottle 5 can be discharged through a connecting tube 8, make the pressure change in the receiving flask 5, make the hydrops pass through in drainage tube 6 gets into fixed pipe 301, liquid promotes check plate 302 activity, through the surface activity of movable rod 304 at dead lever 303, can make two check plates 302 fold, and make torsion spring 305 hold power, make the hydrops flow out and get into in the receiving flask 5 through the space between check plate 302 and the fixed pipe 301, after drainage work, stop bleeding to receiving flask 5, reset through torsion spring 305, torsion spring 305 drives two check plates 302 and gets back to the normal position and contact with stopper 306, carry out the shutoff to fixed pipe 301, avoid the hydrops backward flow.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (8)

1. A surgical drainage device, characterized in that: comprises a bottom plate (1);

the collection bottles (5) are movably connected to the top of the bottom plate (1), and the collection bottles (5) are used for storing accumulated liquid;

the drainage tube (6) is fixedly communicated with the top of the collecting bottle (5), the bottom of the drainage tube (6) extends to the inside of the collecting bottle (5), and the drainage tube (6) is used for draining effusion into the collecting bottle (5);

the air pumping mechanism (2) is fixedly connected to the top of the bottom plate (1), and the air pumping mechanism (2) is used for pumping air in the collecting bottle (5);

the non-return mechanism (3) is fixedly communicated with the bottom of the drainage tube (6), and the non-return mechanism (3) is used for preventing accumulated liquid from flowing back;

the fixing mechanism (4) is movably connected to the surface of the drainage tube (6), and the fixing mechanism (4) is used for fixing the drainage tube (6).

2. A surgical drainage device according to claim 1, wherein: the air extraction mechanism (2) comprises a support frame (201), a motor (202), a transmission shaft (203), a rotary disc (204), a rotating shaft (205), a connecting rod (208), an air extraction pipe (206) and a piston (207), the bottom of the support frame (201) is fixedly connected with the top of the base plate (1), the top of the support frame (201) is fixedly connected with the bottom of the motor (202), one side of the transmission shaft (203), which is close to the motor (202), is fixedly connected with the output end of the motor (202), one side of the transmission shaft (203), which is close to the rotary disc (204), is fixedly connected with the rotary disc (204), the rotating shaft (205) is fixedly connected with one side of the rotary disc (204), which is far away from the transmission shaft (203), one side of the rotating shaft (205), which is close to the connecting rod (208), is fixedly connected with the connecting rod (208), and the other end of the connecting rod (208) is movably connected with the piston (207), the surface of the piston (207) is movably contacted with the inner wall of the exhaust pipe (206).

3. A surgical drainage device according to claim 1, wherein: the non-return mechanism (3) comprises a fixed pipe (301), a non-return plate (302), a fixed rod (303), a movable rod (304), a torsion spring (305) and a limiting block (306), the fixed pipe (301) is fixedly communicated with the bottom of the drainage pipe (6), the fixed rod (303) is close to one side of the inner wall of the fixed pipe (301) and fixedly connected with the fixed pipe (301), the inner wall of the movable rod (304) is in surface movable contact with the fixed rod (303), one side of the movable rod (304) close to the non-return plate (302) is fixedly connected with the non-return plate (302), the torsion spring (305) is sleeved on the surface of the fixed rod (303), one side of the torsion spring (305) close to the non-return plate (302) is fixedly connected with the non-return plate (302), the surface of the non-return plate (302) is in contact with the inner wall of the fixed pipe (301), the limiting block (306) is close to one side of the inner wall of the fixed pipe (301) and fixedly connected with the fixed pipe (301), and the limiting block (306) is close to one side of the check plate (302) and is in contact with the check plate (302).

4. A surgical drainage device according to claim 1, wherein: fixed establishment (4) include two arc fixed blocks (401), reset spring (402), connecting plate (403) and sucking disc (404), arc fixed block (401) are close to one side and drainage tube (6) contact of drainage tube (6), reset spring (402) fixed connection be in the inside of arc fixed block (401), reset spring (402) are close to one side of arc fixed block (401) inner wall with arc fixed block (401) fixed connection, connecting plate (403) are close to one side of arc fixed block (401) with arc fixed block (401) fixed connection, sucking disc (404) fixed connection be in the bottom of connecting plate (403).

5. A surgical drainage device according to claim 2, wherein: the surface covering of motor (202) has safety cover (7), the bottom of safety cover (7) with the top fixed connection of bottom plate (1), the fixed intercommunication in top of exhaust tube (206) has connecting pipe (8), the top of connecting pipe (8) extends to the top of safety cover (7) and with collecting bottle (5) fixed intercommunication.

6. A surgical drainage device according to claim 2, wherein: the connecting rod (208) is movably connected with a connecting rod (10) in the inner part of one side, close to the piston (207), of the connecting rod (208), and one side, close to the inner wall of the piston (207), of the connecting rod (10) penetrates through the inner part of the connecting rod (208) and is fixedly connected with the inner wall of the piston (207).

7. A surgical drainage device according to claim 3, wherein: the surface of the fixing rod (303) is fixedly connected with a fixing plate (9), and one side, close to the torsion spring (305), of the fixing plate (9) is fixedly connected with the torsion spring (305).

8. A method of draining a surgical drainage device according to any of claims 1 to 7, wherein: the method comprises the following steps:

s1, before drainage work, moving two arc-shaped fixing blocks (401) in opposite directions, driving a reset spring (402) to stretch by the arc-shaped fixing blocks (401), sleeving the arc-shaped fixing blocks (401) on the surface of a drainage tube (6), resetting through the reset spring (402), driving the two arc-shaped fixing blocks (401) to move in opposite directions and contact with the drainage tube (6) by the reset spring (402), and fixing the drainage tube (6) at a drainage position through a sucker (404);

s2, when drainage is carried out, the motor (202) drives the transmission shaft (203) to rotate, the transmission shaft (203) drives the rotary disc (204) to rotate, the rotary disc (204) drives the rotary shaft (205) to rotate, the rotary shaft (205) can drive the connecting rod (208) to rotate circumferentially, the piston (207) can move in the air suction pipe (206) in a reciprocating mode, air in the air suction pipe (206) can be discharged, air in the collecting bottle (5) can be discharged, and accumulated liquid can enter the collecting bottle (5) through the drainage pipe (6);

s3. when carrying out drainage during operation, the hydrops passes through in drainage tube (6) gets into fixed pipe (301), the hydrops promotes check plate (302) activity, through movable rod (304) at the surface activity of dead lever (303), can make two check plates (302) fold, and make torsion spring (305) hold power, make the hydrops flow through the space between check plate (302) and fixed pipe (301), after drainage operation, reset through torsion spring (305), torsion spring (305) drive two check plates (302) and get back to the normal position and contact with stopper (306), carry out the shutoff to fixed pipe (301).

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