Anti-clogging nursing drainage device for thoracic surgery department

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a thoracic surgery anti-clogging nursing drainage device which comprises a drainage bottle fixedly connected with a drainage tube. The rolling mechanism is arranged outside the drainage tube and is used for assisting drainage and reducing blockage; the heating mechanism is arranged in the rolling mechanism and used for heating to reduce blockage, the heating mechanism comprises a plurality of heating rods, and the heating rods are arranged in the pressing roller in a penetrating mode; and the limiting mechanism is arranged on the shell and is used for fixing the position of the shell on the drainage tube. Liquid in the drainage tube can be pushed to move through extrusion of the pressing roller of the rolling mechanism, drainage is assisted, blockage is reduced, the liquid in the drainage tube can be heated through the heating rod of the heating mechanism, and the situation that the drainage tube is blocked due to the fact that blood clots are formed in the drainage liquid when the temperature is low is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a closed nursing drainage device for preventing blockage in thoracic surgery. Background Art

[0002] The closed nursing drainage device in thoracic surgery is a medical device used for thoracic drainage. The main purpose is to discharge gas and effusion in the chest cavity from the chest cavity. The closed nursing drainage device in thoracic surgery mainly includes a drainage tube and a drainage bottle. When in use, one end of the drainage tube is placed in the chest cavity, and the other end is connected to the drainage bottle. The flow rate of the drainage liquid in the drainage tube is slow, and the inflammatory exudates in the drainage liquid are easy to precipitate in the drainage tube, resulting in poor drainage or even blockage.

[0003] During the use of the existing closed nursing drainage device in thoracic surgery, in order to prevent blockage, an anti-blocking mechanism is provided on the drainage tube. Generally, the anti-blocking mechanism modifies the drainage tube to reduce blockage by dividing the substances in the drainage tube. However, this method of modifying the drainage tube has insufficient practicability. The anti-blocking mechanism has a higher cost compared with the simple-structured drainage tube. When the drainage tube is replaced, the anti-blocking mechanism is also discarded, resulting in waste. Although some anti-blocking mechanisms are detachably inserted into the drainage tube, the drainage liquid will flow through the inside of the anti-blocking mechanism, and it is necessary to clean the inside of the anti-blocking mechanism to facilitate the reuse of the anti-blocking mechanism. Therefore, the practicability is still insufficient. Summary of the Invention

[0004] The purpose of the present invention is to provide a closed nursing drainage device for preventing blockage in thoracic surgery, which can squeeze and push the liquid in the drainage tube through the pressing roller of the rolling mechanism to assist drainage and reduce blockage, and can heat the liquid in the drainage tube through the heating rod of the heating mechanism to reduce the situation of blockage of the drainage tube due to the formation of blood clots in the drainage liquid at a lower temperature.

[0005] The technical solution adopted by the present invention is specifically as follows:

[0006] A closed nursing drainage device for preventing blockage in thoracic surgery, comprising:

[0007] A drainage bottle, on which a drainage tube is fixedly connected;

[0008] A rolling mechanism, which is arranged outside the drainage tube and is used to assist drainage and reduce blockage. The rolling mechanism includes a housing slidably sleeved on the drainage tube. Two connecting frames are fixedly connected to the inner wall of the housing. The two connecting frames are respectively located on both sides of the drainage tube. An activity frame is slidably installed on the side of the connecting frame close to the drainage tube. A rotating frame is rotatably installed on the activity frame. A plurality of pressing rollers are circumferentially rotatably connected to the rotating frame. The pressing rollers are designed to be hollow;

[0009] Heating mechanism, the heating mechanism is arranged in the rolling mechanism for heating to reduce blockage. The heating mechanism includes a number of heating rods, the heating rods are arranged inside the pressure roller, and both ends of the heating rods are fixedly connected to the rotating frame;

[0010] Limiting mechanism, the limiting mechanism is arranged on the housing for fixing the position of the housing on the drainage tube. The limiting mechanism includes a number of clamping blocks slidably mounted on the housing;

[0011] Among them, after the rotating frames on both sides of the drainage tube rotate, the pressure roller squeezes and pushes the liquid in the drainage tube to move. After the heating mechanism works, the heating rods generate heat to raise the temperature of the pressure roller to heat the liquid in the drainage tube. A number of the clamping blocks slide close to the drainage tube to limit the housing and the drainage tube.

[0012] As a preferred solution of the closed chest surgical anti-blocking nursing drainage device of the present invention, wherein: the rotating frame includes a rotating plate rotatably mounted on the movable frame, a number of rotating arms are slidably mounted on the rotating plate along the circumferential direction, the end of the pressure roller is rotatably connected to the rotating arm, and the end of the heating rod is fixedly connected to the rotating arm.

[0013] As a preferred solution of the closed chest surgical anti-blocking nursing drainage device of the present invention, wherein: the rotating arm is slidably connected to the rotating plate along the radial direction, a number of first limiting holes are opened on the rotating arm along the sliding direction, a second limiting hole is opened on the rotating plate, and a first limiting pin is slidably connected inside the first limiting hole and the second limiting hole.

[0014] As a preferred solution of the closed chest surgical anti-blocking nursing drainage device of the present invention, wherein: the movable frame includes a movable plate slidably mounted on the connecting frame, a movable arm is slidably mounted on one side of the movable plate close to the drainage tube, and the movable frame is rotatably mounted with the movable arm.

[0015] As a preferred solution of the closed chest surgical anti-blocking nursing drainage device of the present invention, wherein: the movable arm is slidably connected to the movable plate, a number of third limiting holes are opened on the movable arm along the sliding direction, a fourth limiting hole is opened on the movable plate, and a second limiting pin is slidably connected inside the third limiting hole and the fourth limiting hole.

[0016] As a preferred solution of the closed chest surgical anti-blocking nursing drainage device of the present invention, wherein: the movable frame is slidably connected to the connecting frame, an electric telescopic rod is fixedly connected to the connecting frame, and the output end of the electric telescopic rod is fixedly connected to the movable frame.

[0017] As a preferred embodiment of the closed chest surgical drainage device for preventing blockage according to the present invention, the following is provided: the rotating frame is rotatably connected to the movable frame, a motor is fixedly connected to the movable frame, and the output end of the motor is fixedly connected to the rotating frame.

[0018] As a preferred embodiment of the closed chest surgical drainage device for preventing blockage according to the present invention, the following is provided: the limiting mechanism further includes a box body fixedly connected to the housing, the clamping block is slidably connected to the box body, and a spring is connected between the clamping block and the box body.

[0019] As a preferred embodiment of the closed chest surgical drainage device for preventing blockage according to the present invention, the following is provided: an elastic block is fixedly connected to the side of the clamping block close to the drainage tube, and the surface of the elastic block close to the drainage tube is roughened.

[0020] As a preferred embodiment of the closed chest surgical drainage device for preventing blockage according to the present invention, the following is provided: a slider is fixedly connected to the clamping block, a chute is provided on the box body, and the chute is slidably matched with the slider.

[0021] The technical effects achieved by the present invention are as follows:

[0022] The present invention adopts the design of a rolling mechanism. The rolling mechanism can push the liquid in the drainage tube by squeezing the pressure roller, assisting in drainage and reducing blockage. After the rotating frame rotates, it drives the pressure roller to rotate, so that the pressure rollers on both sides of the drainage tube push the liquid in the drainage tube, facilitating auxiliary drainage. After the movable frame slides along the connecting frame, the pressure rollers on both sides of the drainage tube approach each other and squeeze to move the liquid in the drainage tube, reducing the blockage in the drainage tube. Moreover, the rolling mechanism is detachable from the drainage tube, enabling the rolling mechanism to be reused, reducing waste. And the rolling mechanism prevents blockage by squeezing the drainage tube from the outside, compared with the existing method where the drainage liquid flows through the anti-blocking mechanism internally, avoiding the situation where the anti-blocking mechanism needs to be cleaned due to being contaminated by the drainage liquid, thereby improving the practicality.

[0023] The present invention adopts the design of a heating mechanism. The heating mechanism can heat the liquid in the drainage tube through the heating rod, reducing the situation where blood clots form in the liquid and block the drainage tube. After the heating rod works, the temperature rises and warms the pressure roller. When the pressure roller contacts the drainage tube, it warms the drainage tube, thereby heating the liquid in the drainage tube, and reducing the situation where blood clots form in the drainage liquid at a lower temperature and block the drainage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall structural schematic diagram of the present invention;

[0025] Figure 2 is the structural schematic diagram of the rolling mechanism and the limiting mechanism of the present invention;

[0026] Figure 3 is a schematic cross-sectional view of the housing in the present invention;

[0027] Figure 4 is a schematic structural view of the pressure roller and the heating rod in the present invention;

[0028] Figure 5 is an exploded schematic view of the pressure roller and the heating rod in the present invention;

[0029] Figure 6 is a schematic structural view of the rotating frame in the present invention;

[0030] Figure 7 is a schematic structural view of the movable frame in the present invention;

[0031] Figure 8 is a schematic structural view of the limiting mechanism in the present invention;

[0032] Figure 9 is a schematic cross-sectional view of the box body in the present invention;

[0033] Figure 10 is a schematic structural view of the insertion slot in the present invention.

[0034] In the drawings, the list of components represented by each reference numeral is as follows:

[0035] 10. Drainage bottle; 11. Drainage tube; 20. Roller pressing mechanism; 21. Housing; 22. Connecting frame; 23. Movable frame; 231. Movable plate; 232. Movable arm; 233. Third limiting hole; 234. Fourth limiting hole; 235. Second limiting pin; 24. Rotating frame; 241. Rotating plate; 242. Rotating arm; 243. First limiting hole; 244. Second limiting hole; 245. First limiting pin; 25. Pressure roller; 26. Electric telescopic rod; 27. Motor; 30. Heating mechanism; 31. Heating rod; 40. Limiting mechanism; 41. Clamping block; 411. Elastic block; 412. Slide block; 42. Box body; 421. Slide groove; 43. Spring; 51. Insertion slot. Detailed implementation manners

[0036] In order to make the purpose and advantages of the present invention clearer, the present invention will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present invention, and does not strictly limit the scope of protection specifically claimed by the present invention.

[0037] Embodiment 1

[0038] As Figures 1 to 9As shown in the figure, this is the first embodiment of the present invention. This embodiment provides a closed chest surgical drainage device with anti-blocking function, which includes a drainage bottle 10, and a drainage tube 11 is fixedly connected to the drainage bottle 10; a rolling mechanism 20, which is arranged outside the drainage tube 11 and is used to assist drainage and reduce blockage. The rolling mechanism 20 includes a housing 21 slidably sleeved on the drainage tube 11. Two connecting frames 22 are fixedly connected to the inner wall of the housing 21. The two connecting frames 22 are respectively located on both sides of the drainage tube 11. A movable frame 23 is slidably installed on the side of the connecting frame 22 close to the drainage tube 11. A rotating frame 24 is rotatably installed on the movable frame 23. A plurality of pressure rollers 25 are circumferentially rotatably connected to the rotating frame 24. The pressure rollers 25 are designed to be hollow; a heating mechanism 30, which is arranged in the rolling mechanism 20 and is used to heat up to reduce blockage. The heating mechanism 30 includes a plurality of heating rods 31. The heating rods 31 penetrate through the inside of the pressure rollers 25, and both ends of the heating rods 31 are fixedly connected to the rotating frame 24; a limiting mechanism 40, which is arranged on the housing 21 and is used to fix the position of the housing 21 on the drainage tube 11. The limiting mechanism 40 includes a plurality of clamping blocks 41 slidably installed on the housing 21.

[0039] It should be noted that a clip is fixedly connected to the outer wall of the housing 21. The clip is a prior art and is used to fix the rolling mechanism 20 on the patient's clothes, which will not be elaborated here. The drainage bottle 10 and the drainage tube 11 are both prior arts. The drainage tube 11 is used to introduce the liquid that needs to be discharged from the patient's chest cavity into the drainage bottle 10, and the drainage bottle 10 is used to collect the discharged liquid, which will not be elaborated here. The heating rod 31 is a prior art and is used to convert electrical energy into heat energy to heat the surrounding objects, which will not be elaborated here. The number of the clamping blocks 41 is two and they are respectively located on both sides of the drainage tube 11.

[0040] When the present invention is in use, the rotating frame 24 rotates along the movable frame 23 and drives the pressing roller 25 to rotate on the outer wall of the drainage tube 11, so that the pressing roller 25 pushes the liquid in the drainage tube 11, causing the liquid in the drainage tube 11 to move towards the drainage bottle 10, thereby facilitating auxiliary drainage (similar to the principle of a peristaltic pump, the difference being that the drainage tube 11 is not squeezed until the tube wall is completely closed). After the rotating frame 24 stops rotating, the movable frame 23 slides along the connecting frame 22 and drives the rotating frame 24 and the pressing roller 25 to move towards one side close to the drainage tube 11, so that the pressing rollers 25 on both sides of the drainage tube 11 approach and squeeze each other to move the liquid in the drainage tube 11, increasing the pressure in the drainage tube 11 and pushing the liquid towards the drainage bottle 10, reducing the blockage situation in the drainage tube 11. Moreover, after the heating rod 31 works, it heats the pressing roller 25, causing the temperature of the pressing roller 25 to rise. During the process of the pressing roller 25 squeezing and pushing the drainage tube 11, the pressing roller 25 contacts the drainage tube 11 and heats the drainage tube 11, causing the temperature of the liquid in the drainage tube 11 to rise, thereby reducing the situation where the bloody liquid in the drained liquid coagulates at a low temperature, resulting in poor drainage or even blockage of the drainage tube 11. Among them, the clamping block 41 slides along the housing 21 towards one side close to the drainage tube 11 to clamp the drainage tube 11 and limit the drainage tube 11 and the housing 21, facilitating the fixation of the position of the roller pressing mechanism 20 on the drainage tube 11, thereby facilitating the extrusion, pushing and heating of different positions on the drainage tube 11, improving the convenience. Moreover, after rotating the roller pressing mechanism 20 by 90 degrees relative to the drainage tube 11, it is then limited and fixed by the limiting mechanism 40 to adjust the contact part between the drainage tube 11 and the pressing roller 25, reducing the situation where the pressing roller 25 always squeezes and pushes the same part of the drainage tube 11, damaging the drainage tube 11. In addition, due to the movable design of the above-mentioned roller pressing mechanism 20, when the blockage position is determined, the roller pressing mechanism 20 can also be moved to the blockage point and extruded through roller pressing to promote the flow at the blockage point.

[0041] Considering the material problem of the drainage tube 11, the heating temperature cannot be too high. Therefore, the heating temperature of the heating rod 31 should be controlled at a temperature that avoids local overheating and damaging the tissue or the drainage tube 11. The specific temperature setting can be set according to the heat conduction efficiency of the actual material, and no specific limitation is made here. At the same time, considering the situation of heat conduction loss, the middle part of one of the pressing rollers 25 can be set to be concave, that is, the middle diameter is smaller than that of both sides, which is convenient for fitting the pipeline and increasing the conduction area.

[0042] Further, move the housing 21 along the drainage tube 11 towards the end of the drainage tube 11 so that the housing 21 is separated from the drainage tube 11, thereby separating the rolling mechanism 20 from the drainage tube 11. Place the housing 21 on the drainage tube 11 from the end of the drainage tube 11 so that the housing 21 is combined with the drainage tube 11, thereby making the rolling mechanism 20 detachable from the drainage tube 11. This facilitates the repeated use of the rolling mechanism 20 for anti-blocking. Compared with the existing integral design of the anti-blocking mechanism and the drainage tube 11, it avoids discarding the anti-blocking mechanism together when replacing the drainage tube 11, reducing waste. Moreover, the rolling mechanism 20 realizes anti-blocking by acting on the drainage tube 11 from the outside of the drainage tube 11. Compared with the existing method where the drained liquid flows through the anti-blocking mechanism internally, it avoids the situation where the anti-blocking mechanism needs to be cleaned due to being contaminated by the drained liquid, thereby improving the practicality.

[0043] Embodiment 2

[0044] Refer to Figures 1 to 9 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0045] As Figure 6 shown, the rotating frame 24 includes a rotating plate 241 rotatably mounted on the movable frame 23. A plurality of rotating arms 242 are slidably mounted on the rotating plate 241 in the circumferential direction. The end of the pressure roller 25 is rotatably connected to the rotating arm 242, and the end of the heating rod 31 is fixedly connected to the rotating arm 242.

[0046] According to the above structure, when it is necessary to adjust the rotation radius of the pressure roller 25 during the auxiliary drainage process, slide the rotating arm 242 along the rotating plate 241. The rotating arm 242 drives the pressure roller 25 to move away from or close to the rotation center of the rotating plate 241, thereby adjusting the distance between the pressure roller 25 and the rotation center of the rotating plate 241, facilitating the adaptation to drainage tubes 11 of different diameters and improving the applicability.

[0047] As Figure 6 shown, the rotating arm 242 is slidably connected to the rotating plate 241 in the radial direction. A plurality of first limiting holes 243 are formed in the rotating arm 242 along the sliding direction, and a second limiting hole 244 is formed in the rotating plate 241. A first limiting pin 245 is slidably connected inside the first limiting hole 243 and the second limiting hole 244.

[0048] According to the above structure, when it is necessary to slide the rotating arm 242 along the rotating plate 241, the first limit pin 245 is withdrawn from the inside of the first limit hole 243 and the second limit hole 244, and the rotating arm 242 is slid along the rotating plate 241 so that the second limit hole 244 is aligned with the first limit hole 243 at a suitable position. Then the first limit pin 245 is inserted into the first limit hole 243 and the second limit hole 244 to limit the rotating plate 241 and the rotating arm 242, thereby facilitating the adjustment of the distance between the pressure roller 25 and the rotation center of the rotating plate 241.

[0049] As Figure 7 shown, the movable frame 23 includes a movable plate 231 slidably mounted on the connecting frame 22. A movable arm 232 is slidably mounted on one side of the movable plate 231 close to the drainage tube 11, and the movable frame 23 is rotatably mounted with the movable arm 232.

[0050] According to the above structure, when it is necessary to adjust the maximum distance between the two pressure rollers 25 during the extrusion of the drainage tube 11, the movable arm 232 is slid along the movable plate 231, and the movable arm 232 drives the rotating frame 24 and the pressure roller 25 to slide horizontally, thereby adjusting the maximum distance between the two pressure rollers 25, facilitating the adaptation to drainage tubes 11 of different diameter sizes, and improving the applicability.

[0051] As Figure 7 shown, the movable arm 232 is slidably connected to the movable plate 231. A plurality of third limit holes 233 are formed in the movable arm 232 along the sliding direction, and a fourth limit hole 234 is formed in the movable plate 231. A second limit pin 235 is slidably connected inside the third limit hole 233 and the fourth limit hole 234.

[0052] According to the above structure, when it is necessary to slide the movable arm 232 along the movable plate 231, the second limit pin 235 is withdrawn from the inside of the third limit hole 233 and the fourth limit hole 234, and the movable arm 232 is slid along the movable plate 231 so that the fourth limit hole 234 is aligned with the third limit hole 233 at a suitable position. Then the second limit pin 235 is inserted into the third limit hole 233 and the fourth limit hole 234 to limit the fourth limit hole 234 and the movable arm 232, thereby facilitating the adjustment of the maximum distance between the two pressure rollers 25.

[0053] As Figure 4 and Figure 5 shown, the movable frame 23 is slidably connected to the connecting frame 22, and an electric telescopic rod 26 is fixedly connected to the connecting frame 22. The output end of the electric telescopic rod 26 is fixedly connected to the movable frame 23.

[0054] According to the above structure, after the electric telescopic rod 26 works, the output end drives the movable frame 23 to slide along the connecting frame 22, facilitating the movable frame 23 to drive the pressure roller 25 to extrude the drainage tube 11 after sliding along the connecting frame 22.

[0055] As Figure 4 and Figure 5 shown, the rotating frame 24 is rotatably connected to the movable frame 23. A motor 27 is fixedly connected to the movable frame 23, and the output end of the motor 27 is fixedly connected to the rotating frame 24.

[0056] According to the above structure, after the motor 27 works, the output end drives the rotating frame 24 to rotate along the movable frame 23, facilitating the rotation of the rotating frame 24 along the movable frame 23 to drive the pressing roller 25 to rotate for auxiliary drainage of the liquid in the drainage tube 11.

[0057] As Figure 8 and Figure 9 shown, the limiting mechanism 40 further includes a box body 42 fixedly connected to the housing 21. The clamping block 41 is slidably connected to the box body 42, and a spring 43 is connected between the clamping block 41 and the box body 42.

[0058] It should be noted that one end of the spring 43 is fixedly connected to the clamping block 41, and the other end of the spring 43 is fixedly connected to the box body 42.

[0059] According to the above structure, under the elastic action, the spring 43 pushes the clamping block 41 to slide along the box body 42 towards the side close to the drainage tube 11, thereby clamping the drainage tube 11 and limiting the drainage tube 11 and the roller pressing mechanism 20, facilitating the fixation of the position of the roller pressing mechanism 20 on the drainage tube 11.

[0060] As Figure 8 and Figure 9 shown, an elastic block 411 is fixedly connected to the side of the clamping block 41 close to the drainage tube 11, and the surface of the elastic block 411 close to the drainage tube 11 is roughened.

[0061] It should be noted that the elastic block 411 is made of an elastic material.

[0062] According to the above structure, when the clamping block 41 clamps the drainage tube 11, the elastic block 411 is deformed by the force between the clamping block 41 and the outer wall of the drainage tube 11, adapting to drainage tubes 11 of different diameters and sizes, improving the applicability. The roughened surface of the elastic block 411 increases the friction between the outer wall of the drainage tube 11 and the elastic block 411, reducing the loosening between the elastic block 411 and the drainage tube 11, facilitating the clamping of the drainage tube 11 by the clamping block 41.

[0063] As Figure 8 and Figure 9 shown, a slider 412 is fixedly connected to the clamping block 41, and a sliding groove 421 is formed in the box body 42. The sliding groove 421 is slidably engaged with the slider 412.

[0064] According to the above structure, the cooperation between the slider 412 and the sliding groove 421 makes the process of the clamping block 41 sliding along the box body 42 more stable.

[0065] Embodiment III

[0066] Refer to Figure 10 , which is the third embodiment of the present invention. The difference between this embodiment and Embodiment II is that an insertion slot 51 is provided on the housing 21 for inserting the drainage tube 11 into the housing 21 or removing the drainage tube 11 from the housing 21.

[0067] It should be noted that the insertion slot 51 is located at the middle position between the two rotating frames 24, and the insertion slot 51 is located at the middle position between the two clamping blocks 41.

[0068] According to the above structure, when it is necessary to place the rolling mechanism 20, the heating mechanism 30 and the limiting mechanism 40 on the drainage tube 11, the drainage tube 11 is inserted into the housing 21 along the insertion slot 51, which facilitates placing the drainage tube 11 between the two rotating frames 24 and between the two clamping blocks 41. When it is necessary to separate the drainage tube 11 from the rolling mechanism 20, the heating mechanism 30 and the limiting mechanism 40, the drainage tube 11 is moved outwards along the insertion slot 51 to separate from the housing 21, so that the drainage tube 11 is withdrawn from between the two rotating frames 24 and from between the two clamping blocks 41, thereby facilitating the disassembly and assembly of the drainage tube 11 and the housing 21.

[0069] The working principle of the present invention is as follows: The pressure rollers 25 on both sides of the drainage tube 11 rotate to push the liquid in the drainage tube 11, which facilitates auxiliary drainage. When the pressure rollers 25 on both sides of the drainage tube 11 approach each other, the liquid in the drainage tube 11 is squeezed, which facilitates increasing the pressure in the drainage tube 11 and pushing the liquid to flow towards the side close to the drainage bottle 10, reducing the blockage in the drainage tube 11. Moreover, the rolling mechanism 20 and the drainage tube 11 are detachable, which facilitates the reuse of the rolling mechanism 20, reduces waste and improves practicability. The rolling mechanism 20 squeezes the drainage tube 11 from the outside of the drainage tube 11 through the pressure rollers 25. Compared with the existing method, this anti-blocking method avoids the situation that the drained liquid needs to be cleaned after flowing through the inside of the anti-blocking mechanism, thereby improving practicability.

[0070] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A closed nursing drainage device for thoracic surgery, characterized in that: include: A drainage bottle (10), wherein a drainage tube (11) is fixedly connected to the drainage bottle (10); A roller pressing mechanism (20), the roller pressing mechanism (20) being arranged outside the drainage tube (11) for assisting drainage and reducing blockage, the roller pressing mechanism (20) comprising a shell (21) slidably sleeved on the drainage tube (11), two connecting frames (22) being fixedly connected to the inner wall of the shell (21), the two connecting frames (22) being respectively located on two sides of the drainage tube (11), a movable frame (23) being slidably mounted on one side of the connecting frame (22) close to the drainage tube (11), a rotating frame (24) being rotatably mounted on the movable frame (23), a plurality of pressing rollers (25) being rotatably connected to the rotating frame (24) in a circumferential direction, the pressing rollers (25) being of hollow design; A heating mechanism (30), the heating mechanism (30) is arranged in the roller pressing mechanism (20) and is used for heating to reduce clogging, the heating mechanism (30) comprises a plurality of heating rods (31), the heating rods (31) are inserted into the interior of the pressing roller (25), and both ends of the heating rods (31) are fixedly connected to the rotating frame (24); a limiting mechanism (40), the limiting mechanism (40) being arranged on the housing (21) and being used for fixing the position of the housing (21) on the drainage tube (11), the limiting mechanism (40) comprising a plurality of clamping blocks (41) slidably mounted on the housing (21); Wherein, after the rotating frames (24) on both sides of the drainage tube (11) rotate, the pressure roller (25) squeezes and pushes the liquid in the drainage tube (11) to move, and after the heating mechanism (30) works, the heating rod (31) generates heat to heat the pressure roller (25) to heat the liquid in the drainage tube (11), and a plurality of the clamping blocks (41) slide close to the drainage tube (11) to limit the shell (21) and the drainage tube (11).

2. The anti-blocking closed nursing drainage device for thoracic surgery according to claim 1 is characterized by: The rotating frame (24) comprises a rotating plate (241) rotatably mounted on the movable frame (23); a plurality of rotating arms (242) are slidably mounted on the rotating plate (241) in a circumferential direction; the end of the pressure roller (25) is rotatably connected to the rotating arm (242); and the end of the heating rod (31) is fixedly connected to the rotating arm (242).

3. The anti-blocking closed nursing drainage device for thoracic surgery according to claim 2 is characterized by: The rotating arm (242) is slidably connected to the rotating plate (241) in a radial direction; a plurality of first limiting holes (243) are provided on the rotating arm (242) along the sliding direction; a second limiting hole (244) is provided on the rotating plate (241); and first limiting pins (245) are slidably connected inside the first limiting hole (243) and the second limiting hole (244).

4. The anti-blocking closed nursing drainage device for thoracic surgery according to claim 1 is characterized by: The movable frame (23) comprises a movable plate (231) slidably mounted on the connecting frame (22); a movable arm (232) is slidably mounted on a side of the movable plate (231) close to the drainage tube (11); and the movable frame (23) and the movable arm (232) are rotatably mounted.

5. The anti-blocking closed nursing drainage device for thoracic surgery according to claim 4 is characterized in that: The movable arm (232) is slidably connected to the movable plate (231); a plurality of third limiting holes (233) are provided on the movable arm (232) along the sliding direction; a fourth limiting hole (234) is provided on the movable plate (231); and second limiting pins (235) are slidably connected inside the third limiting holes (233) and the fourth limiting holes (234).

6. The anti-blocking closed nursing drainage device for thoracic surgery according to claim 1 is characterized by: The movable frame (23) is slidably connected to the connecting frame (22); an electric telescopic rod (26) is fixedly connected to the connecting frame (22); and an output end of the electric telescopic rod (26) is fixedly connected to the movable frame (23).

7. The anti-blocking closed nursing drainage device for thoracic surgery according to claim 1 is characterized by: The rotating frame (24) is rotatably connected to the movable frame (23); a motor (27) is fixedly connected to the movable frame (23); and an output end of the motor (27) is fixedly connected to the rotating frame (24).

8. The anti-blocking closed nursing drainage device for thoracic surgery according to claim 1 is characterized by: The limiting mechanism (40) further comprises a box body (42) fixedly connected to the housing (21), the clamping block (41) is slidably connected to the box body (42), and a spring (43) is connected between the clamping block (41) and the box body (42).

9. The anti-blocking closed nursing drainage device for thoracic surgery according to claim 8, characterized in that: The side of the clamping block (41) close to the drainage tube (11) is fixedly connected to an elastic block (411), and the surface of the side of the elastic block (411) close to the drainage tube (11) is roughened.

10. The anti-blocking closed nursing drainage device for thoracic surgery according to claim 8, characterized in that: The clamping block (41) is fixedly connected with a sliding block (412), and the box body (42) is provided with a sliding groove (421), and the sliding groove (421) is slidably matched with the sliding block (412).

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