A servo-actuated hydrops drainage device

Abstract

The application discloses a follow-up type effusion drainage device, which comprises a vertically arranged square-section shell and a drainage tube connected to the upper end of the shell, the right end of the shell is recessed to the right to form a vertical square liquid suction port, a stopper capable of sliding up and down to block the liquid suction port is arranged in the shell, the upper end of the stopper is staggered with the liquid suction port to facilitate liquid inlet, the lower end of the stopper is connected to the bottom of the inner cavity of the shell through a spring, a gas pressure balancing mechanism is arranged between the liquid storage cavity and the balance cavity, the liquid suction cavity is connected with a drainage bottle mechanism, the stopper moves downward, the exposed area of the liquid suction port increases, and the liquid suction speed is accelerated, when no effusion enters, an initial entering gap is formed between the upper end of the stopper and the liquid suction port, the stopper divides the inner cavity of the shell into an upper liquid storage cavity and a lower balance cavity, the balance cavity plays a role, and thus the gravity effect of the effusion is better highlighted.

Description

Technical Field

[0001] This invention relates to the field of fluid drainage, specifically a follow-up fluid drainage device. Background Technology

[0002] Polyserosional effusion is a common clinical phenomenon. If compressive symptoms occur, puncture and catheter drainage are necessary. Currently, drainage bags, water-seal bottles, or negative pressure suction drainage using water-seal bottles are commonly used. This directly utilizes the height difference between the drainage site and the drainage device, as well as the pressure difference at the drainage site, for drainage. Especially when the pressure at the drainage site is high, sometimes negative pressure is added to the drainage bottle to improve drainage effectiveness and also to address air leakage. However, in practice, if the drainage rate remains constant when the amount of fluid in the body is large, the fluid cannot be drained in time, potentially endangering the patient's life. Furthermore, current drainage devices rarely automatically adjust the drainage rate according to the amount of fluid in the body. Therefore, how to achieve automatic adjustment of the drainage rate is a problem that urgently needs to be solved by technicians in this field. Summary of the Invention

[0003] The purpose of this invention is to provide a follow-up fluid drainage device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a follow-up fluid drainage device, comprising a vertically arranged square-section shell and a drainage tube connected to the upper end of the shell. The right end of the shell is recessed to the right to form a vertical square suction port, and a block capable of sliding up and down to block the suction port is provided inside the shell. The upper end of the block is offset from the suction port to allow liquid to enter. The lower end of the block is connected to the bottom of the inner cavity of the shell by a spring. It also includes a pressure balancing mechanism disposed between a storage chamber and a balance chamber, and a drainage bottle mechanism is connected to the suction chamber. When the block moves downward, the exposed area of ​​the suction port increases and the suction speed increases. When no fluid enters, there is an initial entry gap between the upper end of the block and the suction port. The block divides the inner cavity of the shell into an upper storage chamber and a lower balance chamber. The function of the balance chamber is mainly to avoid the pressure on the upper and lower sides of the block during fluid drainage, so as to better highlight the gravity effect of the fluid.

[0005] Preferably, the air pressure balancing mechanism includes a vertical vent installed on the left wall of the housing cavity, and a stop block is adapted to fit onto the vent to achieve vertical sliding. The stop block moves up and down along the inner wall of the housing and the vent. To increase sealing, a sealing gasket can be added.

[0006] Preferably, an "L"-shaped baffle is fixed on the left wall of the inner cavity of the shell to prevent liquid from entering the ventilator, and an air intake gap is left between the baffle and the upper end of the ventilator. To prevent liquid from entering the ventilator, the baffle includes a horizontal part on the upper side of the ventilator and a bent part on the right end that bends downward to block the upper opening of the ventilator. In this way, the gas enters the ventilator from bottom to top and then bends, thereby preventing liquid from entering.

[0007] Preferably, the drainage bottle mechanism includes a suction tube connected to the suction port and a drainage bottle connected to the end of the suction tube. The end of the suction tube is inserted into the bottom of the inner cavity of the drainage bottle, and the drainage bottle is connected to an air tube. The air tube is used for suction, which can be connected to a hospital negative pressure system or a constant pressure mechanism to generate a constant pressure. The suction port can automatically adjust the suction pressure. This method utilizes the gravity of the accumulated fluid and the liquid level difference between the drainage site and the drainage bottle to achieve drainage. In use, the shell should be higher than the drainage bottle, and the diameter of the drainage tube can be larger, while the rear suction tube can be relatively thinner. Thus, the drainage speed depends on the opening size of the suction port.

[0008] Preferably, the baffle is a hollow shell with an upper mounting groove, in which an elastic rubber membrane is installed. When the liquid volume increases, the rubber membrane will indent, accommodating more liquid, increasing gravity, accelerating the downward movement of the baffle, thereby increasing the opening of the suction port relative to the baffle, increasing the drainage speed, achieving a gain effect, and also equivalent to increasing the reaction regulation speed.

[0009] Preferably, the mounting groove extends to the right through the right wall of the stop block, and the right end of the rubber membrane is bent downwards to form a closed cavity with the stop block. Compared to a flat rubber membrane, this is an inverted "L" shape, mainly to facilitate the complete drainage of liquid accumulated on the rubber membrane at the end, preventing it from remaining on the surface. This is because when the rubber membrane deforms, the right side also deforms, forming a straight channel with an arc-shaped cross-section.

[0010] Preferably, the shell is made of a transparent material to facilitate observation of the internal liquid, and can be made of plastic.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. When there is a lot of accumulated liquid, the amount of liquid in the shell is large, the compression of the spring increases, the stop moves down, the gap between the liquid inlet and the stop increases, and the drainage speed increases. When the accumulated liquid decreases, the amount of liquid remaining on the stop also decreases, the opening decreases, and the drainage speed decreases, thus achieving automatic adjustment.

[0013] 2. The rubber membrane can act as an amplifying agent; the more liquid there is, the greater the gravity, the greater the descent distance, and the faster the liquid absorption speed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention;

[0015] Figure 2 This is an exploded view of the parts according to the first embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the grooved structure of the second embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the structure of the third embodiment of the present invention;

[0019] Figure 6 This is an axonometric view of the third embodiment of the present invention.

[0020] In the diagram: 1. Shell; 2. Suction port; 3. Stop; 4. Spring; 5. Air passage; 6. Baffle; 7. Suction tube; 8. Drainage bottle; 9. Trachea; 10. Rubber membrane. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1

[0023] Please see Figures 1 to 2 This invention provides a follow-up fluid drainage device: a follow-up fluid drainage device includes a vertically arranged, square-sectioned shell 1 and a drainage tube connected to the upper end of the shell 1. The right end of the shell 1 is recessed to the right to form a vertical, square suction port 2. The shell 1 is made of transparent material to facilitate observation of the internal liquid condition and can be made of plastic. A baffle 3 is provided inside the shell 1, which can slide up and down to block the suction port 2. The upper end of the baffle 3 is offset from the suction port 2 to allow liquid to enter. The lower end of the baffle 3 is connected to the bottom of the inner cavity of the shell 1 by means of... The spring 4 is connected, and a pressure balancing mechanism is also provided between the liquid storage chamber and the balance chamber. The liquid suction chamber is connected to a drainage bottle mechanism. When the block 3 moves downward, the exposed area of ​​the liquid suction port 2 increases and the liquid suction speed increases. When no liquid enters, there will be an initial entry gap between the upper end of the block 3 and the liquid suction port 2. The block 3 divides the inner cavity of the shell 1 into the upper liquid storage chamber and the lower balance chamber. The function of the balance chamber is mainly to avoid the pressure on the upper and lower sides of the block 3 when draining the liquid, so as to better highlight the gravity effect of the liquid.

[0024] The air pressure balancing mechanism includes a vertical vent 5 installed on the left wall of the inner cavity of the housing 1, and a baffle 3 is fitted onto the vent 5 to slide up and down. The baffle 3 moves up and down along the inner wall of the housing 1 and the vent 5. To increase sealing, a sealing gasket can be added. An "L"-shaped baffle 6 is fixed on the left wall of the inner cavity of the housing 1 to prevent liquid from entering the vent 5. An air intake gap is left between the baffle 6 and the upper end of the vent 5. To prevent liquid from entering the vent 5, the baffle 6 includes a horizontal part on the upper side of the vent 5 and a bent part on the right end that bends downward to block the upper opening of the vent 5. In this way, the gas flows from bottom to top and then bends to enter the vent 5, thereby preventing liquid from entering.

[0025] The drainage bottle mechanism includes a suction tube 7 connected to the suction port 2 and a drainage bottle 8 connected to the end of the suction tube 7. The end of the suction tube 7 is inserted into the bottom of the inner cavity of the drainage bottle 8, and the drainage bottle 8 is connected to an air tube 9. The air tube 9 is used for suction, which can be connected to a hospital negative pressure system or to some constant pressure mechanism to generate a constant pressure. The suction port 2 can automatically adjust the suction pressure. Of course, it can also be used in ordinary drainage systems to connect to negative pressure bulbs, etc. Here, the gravity of the accumulated fluid and the liquid level difference between the drainage site and the drainage bottle 8 are used to achieve drainage. When in use, the shell 1 should be higher than the drainage bottle 8, and the diameter of the drainage tube can be larger, while the suction tube 7 on the rear side can be relatively thinner. Thus, the drainage speed depends on the opening size of the suction port 2.

[0026] Example 2

[0027] Based on Example 1, see [link / reference] Figure 3 The baffle 3 is a hollow shell with a mounting groove at its upper end, into which an elastic rubber membrane 10 is installed. When the liquid volume increases, the rubber membrane 10 indents, accommodating more liquid, increasing gravity, and accelerating the downward movement of the baffle 3. This increases the opening of the suction port 2 relative to the baffle 3, increasing the drainage speed and achieving a boost effect, which is equivalent to increasing the reaction regulation speed. Simultaneously, grooves can be provided on the rubber membrane 10 to facilitate liquid storage, increase storage capacity, enhance deformation effect, increase counterweight, increase falling distance, and improve reaction sensitivity. (See reference...) Figure 4 .

[0028] Example 3

[0029] Based on Example 2, see [link / reference] Figure 5 and 6The mounting groove extends to the right through the right wall of the stop block 3, and the right end of the rubber membrane 10 bends downward to form a closed cavity with the stop block 3. Compared to the flat rubber membrane 10, this part is inverted "L" shape, mainly to facilitate the complete drainage of liquid accumulated on the rubber membrane 10 at the end, preventing it from remaining on it. This is because when the rubber membrane 10 deforms, the right side also deforms, forming a straight channel with an arc-shaped cross-section. It should be noted that no groove is provided on the rubber membrane 10 at this time to facilitate liquid drainage.

[0030] Working principle: When there is a large amount of liquid accumulated, the volume of liquid in the shell 1 is large, the compression of the spring 4 increases, the stop 3 moves downward, the gap between the suction port 2 and the stop 3 increases, and the drainage speed accelerates. Conversely, when the amount of liquid accumulated decreases, the amount remaining on the stop 3 also decreases, the opening decreases, and the drainage speed decreases, thus achieving automatic adjustment. The rubber diaphragm 10 can act as an amplifying agent; the more liquid there is, the greater the gravity, the greater the descent distance, and the faster the suction speed.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A follow-up fluid drainage device, comprising a vertically arranged square-section housing (1) and a drainage tube connected to the upper end of the housing (1), characterized in that: The right end of the housing (1) is recessed to the right to form a vertical square suction port (2), and a block (3) that can slide up and down to block the suction port (2) is provided inside the housing (1). The upper end of the block (3) is offset from the suction port (2) to allow liquid to enter, and the block (3) divides the inner cavity of the housing (1) into an upper liquid storage chamber and a lower balance chamber. The lower end of the block (3) is connected to the bottom of the inner cavity of the housing (1) by a spring (4). It also includes a pressure balancing mechanism set between the liquid storage chamber and the balance chamber, and the suction chamber is connected to a drainage bottle mechanism.

2. The follow-up fluid drainage device according to claim 1, characterized in that: The air pressure balancing mechanism includes a vertical air passage (5) installed on the left wall of the inner cavity of the housing (1), and a stop block (3) is fitted onto the air passage (5) to achieve up and down sliding.

3. The follow-up fluid drainage device according to claim 2, characterized in that: An "L"-shaped baffle (6) is fixed on the left wall of the inner cavity of the housing (1) to prevent liquid from entering the vent (5). An air intake gap is left between the baffle (6) and the upper end of the vent (5).

4. The follow-up fluid drainage device according to claim 3, characterized in that: The drainage bottle mechanism includes a suction tube (7) connected to the suction port (2) and a drainage bottle (8) connected to the end of the suction tube (7). The end of the suction tube (7) is inserted into the bottom of the inner cavity of the drainage bottle (8), and the drainage bottle (8) is connected to a suction tube (9).

5. The follow-up fluid drainage device according to claim 1, characterized in that: The stop block (3) is a hollow shell, and the upper end of the stop block (3) is provided with an installation groove, in which an elastic rubber membrane (10) is installed.

6. The follow-up fluid drainage device according to claim 5, characterized in that: The mounting groove extends to the right through the right wall of the stop block (3), and the right end of the rubber membrane (10) bends downward to form a closed cavity with the stop block (3).

7. The follow-up fluid drainage device according to claim 1, characterized in that: The shell (1) is made of transparent material.

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