Thoracic cavity closed drainage device for lung leakage
By using a magnetic float and tray structure in the closed thoracic drainage device, the problems of the three-chamber drainage bottle being unable to record drainage volume and being unstable in fixation are solved, achieving convenient recording and stable fixation of drainage volume.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE AFFILIATED HOSPITAL OF XUZHOU MEDICAL UNIV
- Filing Date
- 2025-02-10
- Publication Date
- 2026-05-12
AI Technical Summary
The existing three-chamber drainage bottle cannot record the drainage volume for each instance and is not securely fixed, posing a risk of detachment.
A closed thoracic drainage device comprising a magnetic float and a tray was designed. The magnetic float attracts iron powder to form a marker to record the drainage volume, and a sleeve and slider structure is used to achieve stable fixation.
It enables convenient recording of traffic and secure fixation of the device, reducing errors from manual recording and the risk of it falling off.
Smart Images
Figure CN224220486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a closed thoracic drainage device for lung air leakage. Background Technology
[0002] In existing technologies, drainage bottles used after closed chest drainage are classified into single-lumen, double-lumen, and triple-lumen drainage bottles. Triple-lumen drainage bottles are commonly used for patients with air leaks in the lungs. However, in clinical practice, triple-lumen drainage bottles present the following problems:
[0003] 1. Although the three-chamber drainage bottle has graduations, it cannot record the drainage volume of a patient during multiple monitoring sessions. As a result, nursing staff have to record the drainage volume of each monitoring session by attaching adhesive tape to the bottle.
[0004] 2. The base of the three-chamber drainage bottle is not secure and is not firmly fixed to the bed, posing a risk of it falling off. Utility Model Content
[0005] The purpose of this invention is to provide a closed thoracic drainage device for lung air leakage, which aims to solve the problems of the three-chamber drainage bottle being unable to record the drainage volume for each instance and being unstable in fixation.
[0006] A closed thoracic drainage device for pulmonary air leakage is provided, comprising: a bottle body, a float, a tray, a sleeve, and a magnetic block; the bottle body includes an effusion cavity and an inwardly recessed groove formed on the surface of the effusion cavity, a magnetic float is disposed inside the effusion cavity, a tray that can move up and down is horizontally disposed inside the groove, a vertical sleeve is disposed below the tray, the top of the tray and the sleeve are fixedly connected, the sleeve can extend and retract along the axial direction, the sleeve drives the tray to move up and down inside the groove, iron powder is placed inside the tray, and a magnetic block is disposed on the surface of the tray, the magnetic force of the magnetic block is less than the magnetic force of the float, so that the iron powder can overcome the magnetic force of the magnetic block and follow the float; when the float rises, the iron powder is attracted by the float and thus follows the float, forming a layer of iron powder marker on the side wall of the groove to indicate the height of the float, after each recording of the liquid level height, the tray is moved to the current height of the iron powder, and the height difference between the tray and the iron powder before the next recording of the liquid level height is the total amount of effusion between the two recordings.
[0007] Furthermore, the sleeve includes a coaxially arranged base, knob, first slider, second slider, third slider, first screw, second screw, and third screw. The base, first slider, second slider, third slider, second screw, and third screw are all hollow cylinders. The base, first slider, second slider, and third slider are sequentially slidably connected, and the first slider, second slider, and third slider are capable of axial movement. The knob is coaxially fixedly connected to the first screw, and the first screw, second screw, and third screw are sequentially slidably connected, with the second screw and third screw capable of axial movement. The first screw is threadedly connected to the first slider, the second screw is threadedly connected to the second slider, and the third screw is threadedly connected to the third slider. The second screw is rotatably connected to the first slider, enabling them to move axially synchronously. The third screw is rotatably connected to the second slider, enabling them to move axially synchronously. Rotating the knob causes the first screw, second screw, and third screw to rotate synchronously, thereby causing the first slider, second slider, and third slider to extend and retract synchronously.
[0008] Furthermore, the inner wall of the base is vertically provided with a recessed first sliding groove, the inner wall of the first slider is vertically provided with a recessed second sliding groove, the outer wall of the first slider is vertically provided with a protruding first limiting strip, the inner wall of the second slider is vertically provided with a recessed third sliding groove, the outer wall of the second slider is vertically provided with a protruding second limiting strip, and the outer wall of the third slider is vertically provided with a third limiting strip. The first limiting strip is located inside the first sliding groove and is slidably connected to the first sliding groove, the second limiting strip is located inside the second sliding groove and is slidably connected to the second sliding groove, and the third limiting strip is located inside the third sliding groove and is slidably connected to the third sliding groove.
[0009] Furthermore, a connecting block is provided at the top of the third slider, and the connecting block is fixedly connected to the bottom of the tray.
[0010] Furthermore, the liquid accumulation chamber is equipped with a vertical guide rail, which is located at the axis of the float and the upper and lower ends of the guide rail are fixedly connected to the upper and lower ends of the liquid accumulation chamber. The float is in contact with the side wall of the groove.
[0011] Furthermore, the bottle body also includes a water seal cavity and a pressure regulating cavity. Both the liquid accumulation cavity and the water seal cavity have internal cavities. The liquid accumulation cavity, the water seal cavity, and the pressure regulating cavity are distributed horizontally and connected sequentially. A first through hole is provided on the side of the water seal cavity near the pressure regulating cavity, and a second through hole is provided on the side of the pressure regulating cavity near the water seal cavity. The first through hole and the second through hole are connected to each other and are respectively close to the top of the water seal cavity and the pressure regulating cavity. The cavities inside the water seal cavity and the cavities inside the pressure regulating cavity are connected through the first through hole and the second through hole.
[0012] Furthermore, a hook is provided at the top of the bottle.
[0013] Furthermore, a magnet is provided on the back of the bottle.
[0014] Furthermore, suction cups are provided at the four corners of the bottom of the bottle.
[0015] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:
[0016] A closed thoracic drainage device for pulmonary air leakage is provided, comprising a magnetic float that can slide up and down inside the effusion cavity, and a tray that can move up and down outside the effusion cavity. The tray contains iron powder. When the float rises, the iron powder is attracted by the float and moves with it, forming a marker made of iron powder on the surface of the effusion cavity to indicate the height of the float. After each recording of drainage volume, the tray is moved to the current height of the iron powder. The height difference between the tray and the iron powder before the next recording of the fluid level is the total amount of fluid between the two recordings. By changing the height of the tray and the height difference between the tray and the iron powder, the total amount of drainage can be recorded and monitored. Attached Figure Description
[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0018] Figure 1 This is a perspective view of an embodiment of the present utility model;
[0019] Figure 2 This is a front view of an embodiment of the present utility model;
[0020] Figure 3 The embodiments of this utility model are along Figure 2 Sectional view of line AA in the middle;
[0021] Figure 4 This is a rear view of an embodiment of the present utility model;
[0022] Figure 5 This is a bottom view of an embodiment of the present utility model;
[0023] Figure 6 The embodiments of this utility model are along Figure 5 Sectional view of the middle BB line;
[0024] Figure 7 For the embodiments of this utility model in Figure 6 A magnified view of a section at point C;
[0025] Figure 8This is a front view of the sleeve in an embodiment of the present utility model;
[0026] Figure 9 The embodiments of this utility model are along Figure 8 Sectional view of the DD line;
[0027] The labels in the diagram represent the following:
[0028] 1-Bottle body; 11-Liquid accumulation chamber; 111-Guide rail; 12-Water seal chamber; 121-First through hole; 13-Pressure regulating chamber; 131-Second through hole; 14-Groove; 2-Float ball; 3-Tray; 4-Iron powder; 5-Magnet; 6-Sleeve; 61-Base; 611-First sliding groove; 62-Knob; 63-First slider; 631-Second sliding groove; 632-First limiting strip; 64-Second slider; 641-Third sliding groove; 642-Second limiting strip; 65-Third slider; 651-Connecting block; 652-Third limiting strip; 66-First screw; 67-Second screw; 68-Third screw; 7-Hook; 8-Magnet; 9-Suction cup. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] like Figure 1 , Figure 2 and Figure 3 As shown, a closed thoracic drainage device for lung air leakage is provided, including a bottle body 1, a float 2, a tray 3, a sleeve 6, and a magnetic block 5;
[0031] The bottle body 1 includes a liquid collection chamber 11 and an inwardly recessed groove 14 formed on the surface of the liquid collection chamber 11. A magnetic float 2 is provided inside the liquid collection chamber 11. A tray 3 that can move up and down is horizontally arranged inside the groove 14. A vertical sleeve 6 is provided below the tray 3. The top end of the tray 3 is fixedly connected to the top end of the sleeve 6. The sleeve 6 can extend and retract along the axial direction. The sleeve 6 drives the tray 3 to move up and down inside the groove 14. Iron powder 4 is placed inside the tray 3. A magnetic block 5 is provided on the surface of the tray 3. The magnetic force of the magnetic block 5 is less than the magnetic force of the float 2, so that the iron powder 4 can overcome the magnetic force of the magnetic block 5 and move with the float 2.
[0032] When the float 2 rises, the iron powder 4 is attracted by the float 2 and moves with the float 2, forming a marker made of iron powder 4 on the side wall of the groove 14 to indicate the height of the float 2. After each recording of the liquid level height, the tray 3 is moved to the current height of the iron powder 4. Before the next recording of the liquid level height, the height difference between the tray 3 and the iron powder 4 is the total amount of liquid accumulated between the two recordings.
[0033] Combination Figure 8 and Figure 9 As shown, the sleeve 6 includes a base 61, a knob 62, a first slider 63, a second slider 64, a third slider 65, a first screw 66, a second screw 67, and a third screw 68 arranged coaxially. The base 61, the first slider 63, the second slider 64, the third slider 65, the second screw 67, and the third screw 68 are all hollow cylinders.
[0034] The base 61, the first slider 63, the second slider 64 and the third slider 65 are sequentially slidably connected, and the first slider 63, the second slider 64 and the third slider 65 can move axially; the knob 62 is coaxially fixedly connected to the first screw 66, and the first screw 66, the second screw 67 and the third screw 68 are sequentially slidably connected, and the second screw 67 and the third screw 68 can move axially;
[0035] The first screw 66 is threadedly connected to the first slider 63, the second screw 67 is threadedly connected to the second slider 64, and the third screw 68 is threadedly connected to the third slider 65.
[0036] The second screw 67 is rotatably connected to the first slider 63, so that the two can move axially synchronously; the third screw 68 is rotatably connected to the second slider 64, so that the two can move axially synchronously.
[0037] Rotating knob 62 causes the first screw 66, the second screw 67, and the third screw 68 to rotate synchronously, which in turn causes the first slider 63, the second slider 64, and the third slider 65 to extend and retract synchronously.
[0038] The inner wall of the base 61 is vertically provided with a recessed first sliding groove 611, the inner wall of the first slider 63 is vertically provided with a recessed second sliding groove 631, the outer wall of the first slider 63 is vertically provided with a protruding first limiting strip 632, the inner wall of the second slider 64 is vertically provided with a recessed third sliding groove 641, the outer wall of the second slider 64 is vertically provided with a protruding second limiting strip 642, and the outer wall of the third slider 65 is vertically provided with a third limiting strip 652. The first limiting strip 632 is located inside the first sliding groove 611 and is slidably connected to the first sliding groove 611. The second limiting strip 642 is located inside the second sliding groove 631 and is slidably connected to the second sliding groove 631. The third limiting strip 652 is located inside the third sliding groove 641 and is slidably connected to the third sliding groove 641.
[0039] The first sliding groove 611 is slidably connected to the first limiting bar 632, restricting the first slider 63 to slide only up and down, preventing the first slider 63 from rotating along the axis; the second sliding groove 631 is slidably connected to the second limiting bar 642, restricting the second slider 64 to slide only up and down, preventing the second slider 64 from rotating along the axis; the third sliding groove 641 is slidably connected to the third limiting bar 652, restricting the third slider 65 to slide only up and down, preventing the third slider 65 from rotating along the axis.
[0040] The top of the third slider 65 is provided with a connecting block 651, which is fixedly connected to the bottom of the tray 3.
[0041] The liquid accumulation chamber 11 is provided with a vertical guide rail 111. The guide rail 111 is located at the axis of the float 2 and the upper and lower ends of the guide rail 111 are fixed to the upper and lower ends of the liquid accumulation chamber 11. The float 2 is in contact with the side wall of the groove 14.
[0042] As the liquid level in the liquid accumulation chamber 11 rises, the float 2 slides on the guide rail 111. The contact between the float 2 and the side wall of the groove 14 allows the float 2 to attract iron powder 4 to the maximum extent.
[0043] Combination Figure 6 and Figure 7 As shown, the bottle body 1 also includes a water seal cavity 12 and a pressure regulating cavity 13. Both the liquid accumulation cavity 11 and the water seal cavity 12 have internal cavities. The liquid accumulation cavity 11, the water seal cavity 12, and the pressure regulating cavity 13 are distributed horizontally and connected sequentially. The water seal cavity 12 has a through hole 121 on the side near the pressure regulating cavity 13, and the pressure regulating cavity 13 has a through hole 131 on the side near the water seal cavity 12. The first through hole 121 and the second through hole 131 are connected to each other and are respectively close to the top of the water seal cavity 12 and the pressure regulating cavity 13. The cavities inside the water seal cavity 12 and the cavities inside the pressure regulating cavity 13 are connected through the first through hole 121 and the second through hole 131.
[0044] The internal cavity of the liquid accumulation chamber 11 is connected to the internal cavity of the water seal chamber 12 through a drainage pipe. The internal cavity of the water seal chamber 12 contains liquid water. One end of the drainage pipe is located inside the internal cavity of the liquid accumulation chamber 11, and the other end of the drainage pipe extends 2-3 cm below the liquid surface in the water seal chamber 12. The inner wall of the water seal chamber 12 has a first through hole 121, and the inner wall of the pressure regulating chamber 13 has a second through hole 131. The internal cavity of the water seal chamber 12 and the internal cavity of the pressure regulating chamber 13 are connected through the first through hole 121 and the second through hole 131. The pressure regulating chamber 13 contains liquid water. The top of the pressure regulating chamber 13 is equipped with a pressure regulating pipe that communicates with the external atmospheric environment. One end of the pressure regulating pipe is located 8-12 cm below the water surface inside the pressure regulating chamber 13. The pressure regulating chamber 13 is connected to a negative pressure device through a conduit.
[0045] The top of the bottle body 1 is equipped with a hook 7, which can be used to hang it on the side of the hospital bed.
[0046] Combination Figure 4 As shown, a magnet 8 is provided on the back of the bottle body 1. The magnet 8 can be used to attract the bottle body 1 to the hospital bed, wall or bedside table, etc., to increase the fixation effect of the bottle body 1.
[0047] Combination Figure 5 As shown, suction cups 9 are provided at the four corners of the bottom of the bottle body 1. The suction cups 9 can be used to increase the fixation effect with the ground.
[0048] In this embodiment, the effusion chamber 11 is connected to the patient's pleural cavity through a drainage tube, the effusion chamber 11 is connected to the water seal chamber 12 through a catheter, and the pressure regulating chamber 13 is connected to the negative pressure device through a catheter. The effusion chamber 11 is used to absorb the patient's pleural effusion, the water seal chamber 12 is used to absorb the gas in the patient's pleural cavity, and the pressure regulating chamber 13 is used to buffer the negative pressure of the negative pressure device. When the negative pressure generated by the negative pressure device is greater than the pressure of 8-12 cm water column set in the pressure regulating chamber 13, the cavity will enter the pressure regulating chamber 13 from the pressure regulating tube to relieve the pressure in the pressure regulating bottle.
[0049] When the liquid level in the effusion chamber 11 rises, the float 2 in the effusion chamber 11 moves along the guide rail 111 following the rise in liquid level. The float 2 is magnetic and can attract iron powder 4 in the tray 3. The iron powder 4 forms a layer of markers on the bottom wall of the groove 14 as the float 2 moves. When the caregiver needs to record the monitored effusion volume, the caregiver rotates the knob 62 at the bottom of the sleeve 6, causing the first slider 63, the second slider 64, and the third slider 65 to rise. The tray fixed at the top of the third slider 65... The tray 3 rises synchronously with the third slider 65, moving the height of the tray 3 to the current height of the iron powder 4. At this time, the height of the tray 3 is the amount of fluid drained in the current time period. When the nursing staff monitors again, the height of the iron powder 4 is the total amount of fluid drained. The difference between the height of the tray 3 and the height of the iron powder 4 is the amount of fluid drained in the current time period. The surface of the tray 3 is equipped with a magnetic block 5. When the tray 3 rises, the iron powder 4 at the lowest point of the iron powder 4's movement trajectory is attracted back into the tray 3 by the magnetic block 5.
[0050] By changing the height of tray 3, the total amount of fluid drained from the patient in the current time period can be recorded. When the fluid level is recorded next time, the height of tray 3 can be directly observed to understand the total amount of fluid drained in the previous time period and the amount of fluid drained in the current time period. This allows nursing staff to intuitively monitor and record the drainage volume.
[0051] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered as falling within the scope of protection of this utility model.
Claims
1. A closed thoracic drainage device for lung air leakage, characterized in that, include: Bottle body (1), float (2), tray (3), sleeve (6) and magnet (5); The bottle body (1) includes a liquid collection chamber (11) and an inwardly recessed groove (14) formed on the surface of the liquid collection chamber (11). The liquid collection chamber (11) is provided with a magnetic float (2). The groove (14) is provided with a horizontally movable tray (3). The tray (3) is provided with a vertical sleeve (6) below the tray (3). The top end of the tray (3) is fixedly connected to the top end of the sleeve (6). The sleeve (6) can extend and retract along the axial direction. The sleeve (6) drives the tray (3) to move up and down inside the groove (14). Iron powder (4) is placed inside the tray (3). The surface of the tray (3) is provided with a magnetic block (5). The magnetic force of the magnetic block (5) is less than the magnetic force of the float (2), so that the iron powder (4) can overcome the magnetic force of the magnetic block (5) and follow the float (2) to move. When the float (2) rises, the iron powder (4) is attracted by the float (2) and moves with the float (2), forming a marker made of the iron powder (4) on the side wall of the groove (14) to indicate the height of the float (2). After each recording of the liquid level height, the tray (3) is moved to the current height of the iron powder (4). Before the next recording of the liquid level height, the height difference between the tray (3) and the iron powder (4) is the total amount of liquid accumulated between the two recordings.
2. The closed thoracic drainage device for lung air leakage according to claim 1, characterized in that, The sleeve (6) includes a base (61), a knob (62), a first slider (63), a second slider (64), a third slider (65), a first screw (66), a second screw (67), and a third screw (68) arranged coaxially. The base (61), the first slider (63), the second slider (64), the third slider (65), the second screw (67), and the third screw (68) are all hollow cylinders. The base (61), the first slider (63), the second slider (64), and the third slider (65) are sequentially slidably connected, and the first slider (63), the second slider (64), and the third slider (65) are capable of axial movement; The knob (62) is coaxially fixedly connected to the first screw (66), and the first screw (66), the second screw (67) and the third screw (68) are sequentially slidably connected, and the second screw (67) and the third screw (68) are axially movable; The first screw (66) is threadedly connected to the first slider (63), the second screw (67) is threadedly connected to the second slider (64), and the third screw (68) is threadedly connected to the third slider (65). The second screw (67) is rotatably connected to the first slider (63), so that the two can move axially synchronously; the third screw (68) and the second slider (64) are rotatably connected, so that the two can move axially synchronously. Rotating the knob (62) causes the first screw (66), the second screw (67), and the third screw (68) to rotate synchronously, thereby causing the first slider (63), the second slider (64), and the third slider (65) to extend and retract synchronously.
3. The closed thoracic drainage device for lung air leakage according to claim 2, characterized in that, The base (61) has a vertically recessed first sliding groove (611) on its inner wall, the first slider (63) has a vertically recessed second sliding groove (631) on its inner wall, the first slider (63) has a vertically protruding first limiting strip (632) on its outer wall, the second slider (64) has a vertically recessed third sliding groove (641) on its inner wall, the second slider (64) has a vertically protruding second limiting strip (642) on its outer wall, and the third slider (65) has a vertically protruding third limiting strip (652) on its outer wall. The first limiting strip (632) is located inside the first sliding groove (611) and is slidably connected to the first sliding groove (611). The second limiting strip (642) is located inside the second sliding groove (631) and is slidably connected to the second sliding groove (631). The third limiting strip (652) is located inside the third sliding groove (641) and is slidably connected to the third sliding groove (641).
4. The closed thoracic drainage device for lung air leakage according to claim 2, characterized in that, The top of the third slider (65) is provided with a connecting block (651), and the connecting block (651) is fixedly connected to the bottom of the tray (3).
5. A closed thoracic drainage device for lung air leakage according to claim 1, characterized in that, The liquid accumulation chamber (11) is provided with a vertical guide rail (111). The guide rail (111) is located at the axis of the float (2) and the upper and lower ends of the guide rail (111) are fixedly connected to the upper and lower ends of the liquid accumulation chamber (11). The float (2) is in contact with the side wall of the groove (14).
6. A closed thoracic drainage device for lung air leakage according to claim 1, characterized in that, The bottle body (1) also includes a water seal cavity (12) and a pressure regulating cavity (13). The liquid accumulation cavity (11) and the water seal cavity (12) both have internal cavities. The liquid accumulation cavity (11), the water seal cavity (12) and the pressure regulating cavity (13) are distributed horizontally and connected sequentially. The water seal cavity (12) has a through first through hole (121) on the side near the pressure regulating cavity (13). The pressure regulating cavity (13) has a through second through hole (131) on the side near the water seal cavity (12). The first through hole (121) and the second through hole (131) are connected to each other and are respectively close to the top of the water seal cavity (12) and the pressure regulating cavity (13). The cavity inside the water seal cavity (12) and the cavity inside the pressure regulating cavity (13) are connected through the first through hole (121) and the second through hole (131).
7. A closed thoracic drainage device for lung air leakage according to claim 1, characterized in that, The top of the bottle body (1) is provided with a hook (7).
8. A closed thoracic drainage device for lung air leakage according to claim 1, characterized in that, The back of the bottle body (1) is provided with a magnet (8).
9. A closed thoracic drainage device for lung air leakage according to claim 1, characterized in that, Suction cups (9) are provided at the four corners of the bottom of the bottle body (1).