CN109331251B

CN109331251B - Clinical drainage intelligent control device

Info

Publication number: CN109331251B
Application number: CN201811135084.4A
Authority: CN
Inventors: 王宾; 王才丰
Original assignee: Shandong Qianfoshan Hospital
Current assignee: Shandong Qianfoshan Hospital
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2021-07-23
Anticipated expiration: 2038-09-28
Also published as: CN109771711A; CN109793947A; CN109771712A; CN109771710A; CN109331251A; CN109793948A; CN109771709A

Abstract

The invention relates to the field of medical instruments and discloses an intelligent control device for clinical drainage, which comprises a weighing type base assembly, a suspension support assembly, a mounting seat assembly, a drainage adjusting mechanism and a controller, wherein the weighing type base assembly is arranged on the suspension support assembly; the weighing type base assembly can feed back a weight signal to the controller in the drainage process; a connecting pipe for connecting the drainage tube and the drainage bag is arranged in the mounting seat component; the drainage adjusting mechanism can extrude the connecting pipe to different degrees under the control of the controller to control the on-off of the connecting pipe and adjust the flow rate of accumulated liquid, and meanwhile, the accumulated liquid of the connecting pipe can be driven to move towards the direction of the drainage bag through positive revolution to realize negative pressure drainage. This clinical drainage intelligent control device adopts intelligent design, uses the automatic control that can realize drainage at regular time, ration drainage and constant speed drainage with current conventional drainage subassembly cooperation, has improved the security and the stability of drainage operation, and it has two kinds of drainage modes of ordinary pressure drainage and negative pressure drainage, can satisfy most clinical drainage needs.

Description

Clinical drainage intelligent control device

Technical Field

The invention relates to the technical field of medical instruments, in particular to an intelligent clinical drainage control device for hydrops drainage.

Background

Under normal conditions, a small amount of liquid is in the chest cavity and the abdominal cavity of a human body, so that the visceral organs in the cavity are lubricated, and if the liquid amount in the cavity is increased beyond a normal physiological range under a pathological condition, a disease such as hydrothorax and ascites can be caused. The causes of the abdominal dropsy and the pleural effusion are many and are very common clinical symptoms, and although the abdominal dropsy and the pleural effusion are only one sign, a large amount of the abdominal dropsy and the pleural effusion can cause a series of complications and are not beneficial to treatment of the causes, and even can endanger life in severe cases. Therefore, in cases with a large amount of peritoneal and pleural effusion, drainage of the effusion must be performed first in clinical treatment.

In the clinical operation process of draining a large amount of effusion, the clinical parameters such as daily drainage times, each drainage quantity, drainage speed and the like are required according to the state of illness of a case, in the actual clinical operation, the clinical parameters in the drainage process are generally realized by artificial subjective control of medical care personnel or family members of a patient, and the current artificial control mode has certain disadvantages, on one hand, the drainage process is not performed according to the expected mode of a doctor due to misunderstanding or negligence of the operating personnel and the like in oral delivery of medical advice, discomfort and injury are brought to the patient due to improper drainage, even the life of the patient is threatened, on the other hand, the real-time drainage quantity and the drainage speed are judged by artificial observation in the drainage process, the error is large, the drainage effect is difficult to guarantee, and simultaneously, the current control mode obviously increases the burden of medical staff and family members of patients.

The drainage bag is a relatively cheap medical article, is the best choice as a terminal container in clinical hydrops drainage, but can only be applicable to conventional hydrothorax drainage operation under normal pressure, but can not be applicable to negative pressure drainage, and if negative pressure drainage is carried out, a water-sealed bottle with a higher price than the drainage bag is usually needed, so that a certain economic burden is brought to a patient.

Disclosure of Invention

The invention aims to provide an intelligent clinical drainage control device which adopts an intelligent design, can realize normal-pressure drainage and negative-pressure drainage by matching with the existing drainage bag and a drainage tube, and can automatically control each drainage process according to preset drainage parameters such as drainage starting time, single drainage quantity, drainage speed and the like.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

an intelligent control device for clinical drainage, comprising:

the weighing type base assembly is formed by sequentially matching a weighing platform, a weighing sensor and a base up and down, wherein the weighing sensor outputs a weighing signal capable of reflecting the weight of an object above the weighing platform, and a power supply module for supplying working current to the weighing sensor is arranged on the base;

the suspension support assembly comprises an upright rod with the lower end fixedly connected with the weighing platform and a suspension support beam fixedly connected with the upper end of the upright rod, a clamp used for clamping the top of the drainage bag is arranged on the suspension support beam, and the suspension support assembly is used for suspending the drainage bag right above the weighing platform;

the mounting seat assembly comprises a mounting plate and a connecting pipe, the mounting plate is supported by a telescopic rod and is positioned above the suspension support beam, the upper and lower positions of the mounting plate can be adjusted and locked, the telescopic rod is positioned at the rear side of the upright rod, and the lower end of the telescopic rod is fixedly connected with the base; the connecting pipe is made of soft elastic material, the upper end and the lower end of the connecting pipe are respectively used for connecting the drainage tube and the drainage bag, wherein the upper part of the connecting pipe is provided with a buffer bag, and the lower end of the connecting pipe is provided with a one-way output connector; the front side of the mounting plate is provided with a mounting groove for clamping and fixing the connecting pipe and a bag seat for clamping and fixing the buffer bag;

the drainage adjusting mechanism comprises a concave seat arranged at the front side of the placing plate, a section of arc-shaped side wall is arranged in the concave seat, a revolution wheel which is overlapped with the central shaft of the arc-shaped side wall is arranged in the concave seat, an arc-shaped gap which can contain the connecting pipe is formed between the arc-shaped side wall and the revolution wheel, when the connecting pipe is clamped and fixed in the placing groove, the connecting pipe passes through the arc-shaped gap, and the revolution wheel provides rotary power by a driving device; a roller which is positioned at the outer side of the revolution wheel and is parallel to the central shaft of the revolution wheel is fixed on the revolution wheel, and the roller can freely rotate around the roller shaft and can revolve along with the revolution wheel; in the process of positive revolution of the roller, after entering the arc-shaped gap each time, the roller extrudes the connecting pipe to a blocking state, and then moves the connecting pipe which is rolled in the arc-shaped gap all the time through self rotation to drive the fluid in the connecting pipe to flow backwards so as to finish primary fluid output; the position of the roller can be adjusted through forward revolution and reverse revolution, so that the connecting pipe can be extruded with the arc-shaped side wall to different degrees, and the purposes of controlling the on-off of the connecting pipe and adjusting the flow rate of accumulated liquid in the connecting pipe are achieved; when the roller is at the initial position, the roller is not contacted with the connecting pipe;

the controller is fixed on the placing plate, and a setting key and a display screen are arranged on the front side of the controller; the setting key is used for inputting a drainage mode, drainage parameters and a startup and shutdown instruction of each drainage into the controller, the drainage mode comprises normal-pressure drainage and negative-pressure drainage, the drainage parameters comprise drainage starting time, effusion weight drained in unit time in the drainage process, namely drainage speed, and effusion weight drained in single drainage, namely single drainage amount; the controller can acquire a weighing signal continuously fed back by the weighing sensor in real time, and the real-time drainage speed and the single real-time drainage quantity are calculated according to the weighing signal; the controller can adjust the revolution state of the roller by regulating and controlling the working state of the driving device, wherein the revolution state comprises the start and stop of revolution, the rotation direction, the rotation angle and the rotation speed; the controller can carry out coordination control on the revolution state of the roller based on the real-time drainage speed, the single real-time drainage quantity, the preset drainage mode and the preset drainage parameters, so as to realize the timed drainage, the constant-speed drainage and the quantitative drainage; after receiving a shutdown instruction, the controller firstly adjusts the roller to an initial position and then executes shutdown; the display screen is used for displaying the data information held by the palm in the controller;

and the power supply assembly is arranged on the mounting plate, consists of a storage battery and a plurality of voltage transformation modules and is used for providing working current for the driving device and the controller.

The using method and the working principle of the clinical drainage intelligent control device are as follows:

the clinical drainage intelligent control device is placed on the ground or a platform lower than a patient, a drainage bag is fixed on the lower side of a suspension beam through a clamp, and the drainage bag is suspended above a weighing table; the buffer bag is clamped and fixed in the bag seat, the connecting pipe is clamped and fixed in the placing groove, the connecting pipe is ensured to penetrate through an arc-shaped gap formed between the arc-shaped side wall and the revolution wheel, the lower end of the connecting pipe is connected with the drainage bag, the height of the placing plate is adjusted, the part, located between the placing groove and the drainage bag, of the connecting pipe is in a natural stretching state, the tail end of the drainage pipe is connected with the upper end of the connecting pipe, the front end of the drainage pipe is communicated with and fixed with a cavity to be drained of a patient according to conventional drainage operation, the clinical drainage intelligent control device is adjusted to a starting state through a set key, a drainage mode and drainage parameters are preset in the controller through the set key according to clinical needs, and then early-stage preparation work of the drainage operation is completed; afterwards, the controller can regulate and control the revolution state of the roller based on the real-time drainage speed, the single real-time drainage quantity, the preset drainage mode and the drainage parameters, so that the timed drainage, the constant-speed drainage and the quantitative drainage are realized.

Furthermore, the one-way output joint comprises a main body, the upper end of the main body is provided with an input port connected with the lower end of the connecting pipe, and the lower end of the main body is provided with an output port connected with the drainage bag; a column cavity is arranged in the main body, a liquid inlet hole is formed in the bottom of the column cavity, a liquid discharge hole is formed in the side wall of the middle lower part, and a vent hole communicated with the atmosphere is formed in the upper end of the column cavity; the input port is communicated with the liquid inlet hole through a flow channel, and the liquid outlet hole is communicated with the output port through a flow channel; a floating ball with a smooth surface is arranged in the valve cavity, a gap is formed between the floating ball and the side wall of the column cavity, so that the liquid discharge hole is always communicated with the vent hole, and the floating ball can be in sealing fit with the liquid inlet hole after sinking to the bottom of the column cavity; when the column cavity is internally provided with the accumulated liquid, the floating ball floats on the upper surface of the accumulated liquid in the column cavity to communicate the liquid inlet hole, the liquid outlet hole and the air vent, and when the accumulated liquid does not exist in the column cavity, the floating ball sinks by gravity to plug the liquid inlet hole.

This clinical drainage intelligent control device has following beneficial effect:

the drainage device adopts an intelligent design, can be used by being matched with the conventional drainage component clinically, can be compatible with two working modes of normal-pressure drainage and negative-pressure drainage, can automatically control the whole drainage operation according to preset drainage parameters after presetting drainage parameters such as initial time of each drainage, single drainage quantity, drainage speed of each drainage and the like, realizes automatic intelligent drainage with timing, quantification and constant speed, greatly lightens the work burden of medical workers because human interference is not needed in the drainage process, avoids the situation that the drainage cannot be carried out according to an expected mode due to negligence or improper operation, improves the safety and stability of the clinical liquid drainage operation, and fully ensures the drainage effect; the intelligent control device for clinical drainage is used for controlling the drainage quantity and the drainage speed based on the coordination of the sensing device, the controller and the driving device, and compared with manual observation and control in the prior art, the intelligent control device for clinical drainage is more accurate in operation and control, so that the drainage effect is further ensured; the connecting pipe is used as a middle channel of the drainage pipe and the drainage bag and is a passage which is necessary for effusion in the drainage process, the regulation of the drainage speed and the generation of the drainage negative pressure of the clinical drainage intelligent control device are realized by extruding the connecting pipe based on the drainage regulating mechanism, the sealing performance of an effusion drainage pipeline is ensured, the isolation of the effusion from other parts is ensured, the safety and the sanitation are realized, the manufacturing cost of the connecting pipe is relatively low, the clinical drainage intelligent control device is suitable for one-time use, and the economical efficiency of the clinical drainage intelligent control device in clinical application is ensured; meanwhile, the drainage adjusting mechanism adopts a scientific and ingenious structural design, has multiple functions of controlling the on-off state of the connecting pipe, adjusting the flow rate of accumulated liquid, generating negative pressure in negative pressure drainage and the like, and exerts the utilization rate of components to the maximum, so that the structure of the clinical drainage intelligent control device tends to be more compact; in conclusion, the clinical drainage intelligent control device is very convenient to use, very flexible to apply, very simple to operate, compact in structure, ingenious in design, accurate in metering, low in manufacturing cost and use cost and extremely suitable for being popularized and used in medical units, and the main body component can be recycled.

Drawings

Fig. 1 is one of the overall structural schematic diagrams of the clinical drainage intelligent control device in embodiment 1.

Fig. 2 is a second schematic view of the overall structure of the intelligent control device for clinical drainage in embodiment 1.

Fig. 3 is a partially broken away schematic view of the weighing base assembly of example 1.

Fig. 4 is a schematic structural diagram of the mount assembly, the drainage adjustment mechanism, and the controller in embodiment 1.

Fig. 5 is a schematic view of the connection pipe and the drainage adjusting mechanism when the roller is in the initial position in embodiment 1.

Fig. 6 is a schematic view of a state of the clinical drainage intelligent control device in embodiment 1 after being combined with a drainage bag and a drainage tube.

Fig. 7 is an intelligent control schematic diagram of the clinical drainage intelligent control device in embodiment 1.

Fig. 8 is a working principle diagram of the drainage adjusting mechanism in the normal pressure drainage mode in embodiment 1.

Fig. 9 is a working principle diagram of the drainage adjusting mechanism in the negative pressure drainage mode in the embodiment 1.

Fig. 10 is a schematic structural view of a connection pipe in embodiment 2.

Fig. 11 is a schematic view of a fitting structure of a roll and a runner in embodiment 3.

Fig. 12 is a schematic structural view of a drainage adjustment mechanism according to embodiment 4 after further modification.

Fig. 13 is a schematic view illustrating the connection between the signal line and the retractable rod in embodiment 5.

FIG. 14 is a schematic structural view of the weighing base assembly of example 6.

Fig. 15 is a schematic structural view of the intelligent control device for clinical drainage in an extended state in embodiment 7.

Fig. 16 is a schematic structural diagram of the intelligent control device for clinical drainage in a contracted state in embodiment 7.

Fig. 17 is a state diagram of the connection pipe in embodiment 8 for fluid output and the fluid is accumulated.

Fig. 18 is a state diagram of the floating ball stopping the backflow of the accumulated liquid after the fluid output of the connection tube in embodiment 8 is completed.

Fig. 19 is a state diagram of the connection pipe in the embodiment 8 for outputting the fluid and the fluid is air.

In the figure, 1, a base, 2, a weighing platform, 3, a telescopic rod, 4, an upright rod, 5, a clamp, 6, a suspension beam, 7, an arc-shaped gap, 8, a placing plate, 9, a revolving wheel, 10, a driving device, 11, a power supply assembly, 12, an arc-shaped side wall, 13, a placing groove, 14, a bag seat, 15, a concave seat, 16, a display screen, 17, a setting key, 18, a roller, 19, a controller, 20, a positioning bolt, 21, a weighing sensor, 22, an indicator light, 23, an alarm, 24, a connecting pipe, 25, a buffer bag, 26, a drainage pipe, 27, a drainage bag, 28, a curve section, 29, a roller fork, 30, a tension spring, 31, a radial hole, 32, a tension pin, 33, a manual rotary handle, 34, a signal wire, 35, a telescopic section, 36, a ground foot, 37, a bolt, 38, an adjusting knob, 39, a bubble type level gauge, 40, an arc part, 41, a crank arm, 42 and a one-way output joint, 43. the device comprises an output port 44, a liquid inlet hole 45, a main body 46, a floating ball 47, a column cavity 48, an input port 49, a vent hole 50 and a liquid discharge hole.

Detailed Description

Example 1

Referring to fig. 1, 2 and 6, the clinical drainage intelligent control device disclosed in this embodiment is composed of several parts, namely a weighing type base assembly, a suspension support assembly, a placement seat assembly, a drainage adjustment mechanism, a controller 19 and a power supply assembly 10;

as shown in fig. 1 and 3, the weighing type base assembly is formed by sequentially matching a weighing platform 2, a weighing sensor 21 and a base 1 up and down, the weighing sensor 21 outputs a weighing signal capable of reflecting the weight of an object above the weighing platform 2, and the base 1 is provided with a power supply module for supplying working current to the weighing sensor 21; for providing support for the suspension and seat assemblies on the one hand and for feeding back a weight signal to the controller 19 on the other hand;

as shown in fig. 1, 2 and 6, the suspension support assembly comprises an upright rod 4 and a suspension support beam 6, the lower end of the upright rod 4 is fixedly connected with the weighing platform 2, the middle part of the suspension support beam 6 is fixedly connected with the upper end of the upright rod 4, and the suspension support beam 6 is provided with a clamp 5 for clamping the top of the drainage bag 27; the suspension support assembly is used for suspending the drainage bag 27 right above the weighing platform 2 in a suspension manner, so that the weight of the drainage bag 27 and accumulated liquid in the drainage bag tends to be totally and indirectly fed back to the weighing sensor 21;

as shown in fig. 1, 2, 5 and 6, the seat assembly includes a seat plate 8 and a connecting pipe 24; the placing plate 8 is supported by a telescopic rod 3 and is positioned above the suspension beam 6, the upper and lower positions of the placing plate can be adjusted and locked, the telescopic rod 3 is positioned at the rear side of the upright rod 4, and the lower end of the telescopic rod is fixedly connected with the base 1; the connecting tube 24 is made of soft elastic material, so as to ensure good elastic deformation performance, the upper end and the lower end of the connecting tube 24 are respectively used for connecting the drainage tube 26 and the drainage bag 27, wherein the upper part is provided with a buffer bag 25, the lower end is provided with a one-way output joint 42, and the one-way output joint 42 only allows effusion or air in the connecting tube 24 to flow towards the drainage bag 27 as the name suggests; the front side of the mounting plate 8 is provided with a mounting groove 13 for clamping and fixing the connecting pipe 24 and a bag seat 14 for clamping and fixing the buffer bag 25;

as shown in fig. 1, 4, 5, 8, and 9, the drainage adjusting mechanism includes a recess 15 provided at the front side of the placement plate 8, a section of arc-shaped side wall, called as an arc-shaped side wall 12, is provided in the recess 15, a revolving wheel 9 overlapping with the central axis of the arc-shaped side wall 12 is provided in the recess 15, an arc-shaped gap 7 capable of accommodating a connecting pipe 24 is formed between the arc-shaped side wall 12 and the revolving wheel 9, and the connecting pipe 24 passes through the arc-shaped gap 7 after being clamped in the placement groove 13; the revolution wheel 9 is provided with rotary power by a driving device 10 fixed on the setting plate 8; a roller 18 which is positioned at the outer side of the revolution wheel 9 and is parallel to the central axis of the revolution wheel is fixed on the revolution wheel 9, and the roller 18 can freely rotate around the roller shaft and can revolve with the revolution wheel 9; referring to fig. 9, in the continuous forward revolution process of the roller 18, after entering the arc gap 7 each time, the roller extrudes the connecting pipe 24 to a blocking state, and then moves the connecting pipe 24 rolling the arc gap 7 all the time by self rotation to drive the fluid in the connecting pipe 24 to flow backwards, so as to complete one-time fluid output, the fluid is accumulated fluid or air in the connecting pipe 24, and when the rolled connecting pipe 24 returns to its original shape by its own elasticity, the front end of the connecting pipe 24 will generate negative pressure to drive the accumulated fluid in the human body to enter the connecting pipe 24, and when the roller 18 leaves the arc gap 7, the connecting pipe 24 cannot output the fluid because of not being continuously extruded, but the one-way output joint 42 can effectively prevent the fluid in the connecting pipe 24 from flowing backwards, that is, when the roller 18 continues to perform the forward revolution, the connecting pipe 24 sequentially outputs the fluid, thereby achieving negative pressure drainage, the average drainage speed of the effusion drainage is determined by the positive revolution speed of the roller 18; referring to fig. 8, when normal pressure drainage is performed, the roller 18 can adjust the position through forward revolution and reverse revolution, so that the connecting pipe 24 can be extruded to different degrees with the arc-shaped side wall 12, and the purposes of controlling the on-off of the connecting pipe 24 and adjusting the flow rate of accumulated liquid in the connecting pipe 24 are achieved; referring to fig. 5, when the roll 18 is in the initial position, it is located at the other side opposite to the arc-shaped side wall 12 so as not to contact the connection pipe 24, and in this state, the connection pipe 24 can be smoothly combined with and separated from the drainage regulating mechanism;

as shown in fig. 1, 5, 6 and 7, the controller 19 is fixed on the installation plate 8, a control program is pre-installed in the controller, and a setting key 17 and a display screen 16 are arranged on the front side of the controller; the setting key 17 is used for inputting a drainage mode, drainage parameters and a startup and shutdown instruction of each drainage into the controller 19, the drainage mode comprises normal-pressure drainage and negative-pressure drainage, the drainage parameters comprise drainage starting time, effusion weight drained in unit time in the drainage process, namely drainage speed, and effusion weight drained in single drainage, namely single drainage amount; the controller 19 can obtain a weighing signal continuously fed back by the weighing sensor 21 in real time, and calculate the real-time drainage speed and the single real-time drainage quantity according to the weighing signal; the controller 19 can adjust the revolution state of the roller 18 by regulating and controlling the working state of the driving device 10, wherein the revolution state comprises the start and stop of revolution, the rotation direction, the rotation angle and the rotation speed; the controller 19 can perform coordination control on the revolution state of the roller 18 based on the real-time drainage speed, the single real-time drainage quantity, and a preset drainage mode and drainage parameters, so as to realize timing drainage, constant-speed drainage and quantitative drainage; after receiving the shutdown instruction, the controller 19 firstly adjusts the roller 18 to the initial position and then performs shutdown, thereby ensuring that the connecting pipe 24 can be smoothly separated from the drainage adjusting mechanism and the accommodating groove 13 after drainage is finished, and ensuring that the connecting pipe 24 can be smoothly installed in the next drainage operation; the display screen 16 is used for displaying data information grasped in the controller 19, including information such as real-time drainage speed, single real-time drainage quantity, set drainage mode and drainage parameters, and also displaying drainage states indirectly obtained based on the information, such as working states of drainage in progress, drainage pause, drainage end and the like;

referring to fig. 1 and 4, the power module 10 is mounted on the mounting plate 8, and is composed of a storage battery and a plurality of voltage transformation modules, and is used for providing operating current for the driving device 10 and the controller 19, and the structure of the power module 10 and the connection relationship with other elements are not described in detail since they can be easily implemented by the prior art.

referring to fig. 6 and 7, the clinical drainage intelligent control device is placed on the ground or a platform lower than a patient, the drainage bag 27 is fixed on the lower side of the suspension beam 6 through the clamp 5, at the moment, the drainage bag 27 is suspended above the weighing platform 2, and the fixing mode of the drainage bag 27 also provides favorable conditions for the full extension of the drainage bag in the drainage process; the method comprises the steps of clamping a buffer bag 25 in a bag seat 14, clamping a connecting pipe 24 in a placing groove 13, ensuring that the connecting pipe 24 penetrates through an arc-shaped gap 7 formed between an arc-shaped side wall 12 and a revolving wheel 9, connecting a one-way output connector 42 at the lower end of the connecting pipe 24 with a drainage bag 27, adjusting the height of a placing plate 8 to enable the part of the connecting pipe 24 between the placing groove 13 and the drainage bag 27 to be in a natural extension state, connecting the tail end of a drainage pipe 26 with the upper end of the connecting pipe 24, communicating and fixing the front end of the drainage pipe 26 with a chamber to be drained of a patient according to conventional drainage operation, adjusting a clinical drainage intelligent control device to a starting state through a setting key 17, presetting a drainage mode and drainage parameters in a controller 19 by using the setting key 17 according to clinical requirements, and finishing early preparation work of the drainage operation; thereafter, the controller 19 can regulate and control the revolution state of the roller 18 based on the real-time drainage speed, the single real-time drainage quantity, the preset drainage mode and the drainage parameters, and the specific regulation and control mode is as follows:

(1) referring to fig. 7, 8, and 9, in the normal pressure drainage mode;

a. during primary drainage, the controller 19 enables the roller 18 to perform positive revolution according to a preset initial drainage starting time, trigger pressure is provided for a siphon effect based on normal-pressure drainage, when a weighing signal changes, it is indicated that partial accumulated liquid enters the drainage bag 27, at the moment, the roller 18 continues to perform positive revolution, and the primary drainage is started until the connecting pipe 24 is in a conducting state; in each drainage, the controller 19 rotates the roller 18 to adjust the position according to the preset initial time of each drainage, so that the connecting pipe 24 is kept in a conducting state, accumulated liquid is stored in a drainage pipe 26 path formed by the drainage pipe 26 and the connecting pipe 24, each drainage can be realized by means of a siphon effect, and the timed drainage is realized;

b. in the drainage process, the controller 19 enables the roller 18 to perform corresponding forward revolution or reverse revolution according to the real-time drainage speed to adjust the extrusion degree of the roller 18 on the connecting pipe 24, so that the effusion speed in the connecting pipe 24 is increased or reduced, and finally the real-time drainage speed is approximately equal to the preset drainage speed, namely constant-speed drainage is realized;

c. in the drainage process, the controller 19 calculates the single real-time drainage amount from the initial drainage to the current drainage in real time, when the single real-time drainage amount reaches the preset single drainage amount, the controller 19 drives the roller 18 to revolve to adjust the position, so that the connecting pipe 24 is extruded to a blocking state, and at the moment, the quantitative drainage is realized after the drainage is finished;

(2) referring to fig. 7 and 9, in the negative pressure drainage mode,

a. as shown in fig. 7 and 9, according to the preset drainage starting time, the controller 19 drives the roller 18 to perform positive revolution, and drives the effusion to flow into the drainage bag 27 from the human body, namely, the timed drainage is realized;

b. in the drainage process, the controller 19 adjusts the rotation speed of the forward revolution of the roller 18 according to the real-time drainage speed, so that the frequency of outputting the accumulated liquid by the connecting pipe 24 is increased or reduced, the average flow speed of the accumulated liquid is indirectly increased or reduced, and finally the real-time drainage speed is approximately equal to the preset drainage speed, namely constant-speed drainage is realized;

c. in the drainage process, the controller 19 calculates the single real-time drainage amount of the initial drainage to the current time, when the single real-time drainage amount reaches the preset single drainage amount, the controller 19 enables the roller 18 to stop revolution under the condition that the connecting pipe 24 is extruded to the blocking state, and at the moment, the drainage is finished and the connecting pipe 24 keeps the stopping state, so that the quantitative drainage is realized.

Referring to fig. 9, in the clinical drainage intelligent control device, the revolution direction of the roller 18 is divided into a forward revolution and a reverse revolution, wherein the forward and reverse are relative only, and only one rotation direction set for convenience of description is referred to, because the relative position of the connecting pipe 24 and the roller 18 is not limited to a specific one during implementation, the actual revolution direction required by the roller 18 to drive the accumulated liquid in the connecting pipe 24 to flow from the human body to the drainage bag 27 is influenced by the relative position of the connecting pipe 24 and the roller 18, therefore, in the foregoing description, the rotation direction which can drive the accumulated liquid in the connecting pipe 24 to flow from the human body to the drainage bag 27 during the revolution of the roller 18 is defined as the forward direction, and vice versa.

Referring to fig. 1, 3 and 7, in the clinical drainage intelligent control device, a weighing base assembly is used for directly or indirectly providing support for other parts on one hand, and feeding back a weighing signal of the weight of an object above a weighing platform 2 to a controller 19 through a weighing sensor 21 on the other hand; based on the technical purpose, the specific matching structure of the weighing platform 2, the weighing sensor 21 and the base 1 can be implemented by referring to the structure of the existing electronic scale, specifically, the weighing platform 2 is limited by the base 1 and has a certain up-and-down floating stroke, but the weighing platform and the base cannot be completely separated, the weighing sensor 21 is arranged between the weighing platform 2 and the base 1, the weighing sensor 21 provides support for the weighing platform 2 in the vertical direction, and a weighing signal output by the weighing sensor 21 changes along with the pressure applied to the weighing platform 2 by the weighing platform.

Referring to fig. 2, in the clinical drainage intelligent control device, the setting plate 8 can be adjusted to be in the up-down position and locked based on the extension and retraction of the telescopic rod 3, based on the technical requirement, the telescopic rod 3 adopts the existing plug-in type structure, and meanwhile, the telescopic rod 3 is provided with the positioning bolt 3720 capable of locking the length of the telescopic rod, so that the technical purpose can be achieved.

Referring to fig. 7, in the clinical drainage intelligent control device, the controller 19 can obtain the weighing signal continuously fed back by the weighing sensor 21 in real time, and the technical features of the prior art are that a wireless transmission module capable of performing data transmission can be arranged between the weighing sensor 21 and the controller 19, or a circuit for transmitting data can be arranged between the weighing sensor 21 and the controller 19.

Referring to fig. 6 and 8, in the clinical drainage intelligent control device, the connecting pipe 24 can be combined in the placing groove 13; on one hand, the connecting pipe 24 fixed by the placing groove 13 plays a good role in isolating the drainage pipe 26 from the drainage bag 27, so that external force interference caused by unstable factors such as shaking of the drainage pipe 26 to the drainage bag 27 is effectively avoided, and the data accuracy and stability of the real-time drainage speed and the single real-time drainage quantity are improved; on the other hand, the arrangement groove 13 guides the trend of the connecting pipe 24, and the matching stability of the connecting pipe 24 and the drainage adjusting mechanism is ensured.

Referring to fig. 6 and 7, in the clinical drainage intelligent control device, in the use process, the weight of the drainage bag 27 and the effusion inside the drainage bag is almost completely supported by the suspension beam 6, that is, almost the whole weight of the drainage bag 27 and the effusion inside the drainage bag is finally applied to the weighing sensor 21, the weights of the weighing platform 2, the upright stanchion 4, the suspension beam 6 and the drainage bag 27 after installation are constant and unchangeable in the drainage process, so that the change of the weighing signal output by the weighing sensor 21 is almost completely caused by the increase of the effusion in the drainage bag 27, so that the controller 19 can calculate the weight of the effusion in the drainage bag 27 in unit time according to the change state of the weighing signal in the drainage process, that is, the real-time drainage speed, and can calculate the weight of the effusion in the drainage bag 27 in the period from the beginning of the drainage to the present time, that is, the single real-time drainage quantity, therefore, the controller 19 can calculate the corresponding real-time drainage speed and single real-time drainage quantity based on the change state of the real-time weighing signal, which can be realized by adopting the prior art;

if the drainage bag is not placeable, the upper end of the drainage bag 27 is fixedly connected with the connecting pipe 24 in the drainage process, the connecting pipe 24 inevitably generates certain acting force on the drainage bag 27, and the acting force can be changed along with the deformation of the drainage bag 27, so that certain influence is brought to the data accuracy of the real-time drainage speed and the single real-time drainage quantity; however, in the clinical drainage intelligent control device, the placing plate 8 is supported by the telescopic rod 3, the height of the placing plate can be adjusted and locked, and before clinical drainage is implemented, the part of the connecting pipe 24, which is positioned between the placing groove 13 and the drainage bag 27, is in a natural extension state by adjusting the height of the placing plate 8, so that the acting force of the connecting pipe 24 on the drainage bag 27 can be reduced, and the influence on the data accuracy of the real-time drainage speed and the single real-time drainage quantity is reduced.

Referring to fig. 6 and 9, in the clinical drainage intelligent control device, the lower end of the connecting pipe 24 adopts the one-way output joint 42, when the roller 18 drives the connecting pipe 24 to output fluid, the accumulated fluid or air in the connecting pipe 24 can be output through the one-way output joint 42, and when the connecting pipe 24 does not output fluid, the one-way output joint 42 can prevent the accumulated fluid or air in the connecting pipe 24 from flowing back, so the one-way output joint 42 is a necessary component, and plays a necessary role in the negative pressure drainage process and the initial stage of normal pressure drainage; based on the arrangement of the one-way output joint 42, the one-way output joint can be realized by adopting the prior art, for example, the one-way output joint 42 can adopt a ball valve type or a duckbill one-way valve commonly used in the prior fluid conveying field; meanwhile, because the connecting pipe 24 is the only connecting channel between the drainage pipe 26 and the drainage bag 27, the normal pressure drainage is performed based on the siphon effect, and the pressure difference between the head and the tail of the drainage pipeline is generally limited by the relative height, and considering this factor, the working pressure of the one-way output joint 42 should be as small as possible, so as to reduce the resistance to the effusion flow in the normal pressure drainage.

Referring to fig. 9, when the clinical drainage intelligent control device is used clinically, based on the structural characteristics of the drainage adjustment mechanism, in the negative pressure drainage mode, when the roller 18 revolves around in the positive direction, the connection pipe 24 outputs fluid once and a fluid stagnation stage exists at the same time, that is, the fluid output in the connection pipe 24 is performed in a pulse mode, and the buffer bag 25 is arranged at the middle upper part of the connection pipe 24, and can store and accumulate the negative pressure generated in the connection pipe 24, provide a relatively smooth and uniform negative pressure for the lower end of the drainage pipe 26, weaken the pulse effect in the drainage pipe 26, make the flow rate of the effusion at the upper part of the drainage pipe 26 tend to be uniform in the drainage process, and avoid discomfort for the patient.

Referring to fig. 6, 7 and 9, when the intelligent control device for clinical drainage is used clinically, in a negative pressure drainage mode, the controller 19 can adjust the rotation speed of the roller 18 in positive revolution according to the real-time drainage speed to realize constant-speed drainage; however, the problem is that in the negative pressure drainage mode, the accumulated liquid enters the drainage bag 27 in a pulse mode, so that the unit time based on which the controller 19 calculates the real-time drainage speed through the weighing signal is not too short, and at least the unit time is longer than the time required by one revolution of the roller 18;

meanwhile, the average drainage speed can be calculated by the weight of the drained accumulated liquid in a longer period of time to serve as the real-time drainage speed, and if the controller 19 calculates the real-time drainage speed by adopting the method, the drainage effect is not obviously influenced.

Referring to fig. 7, 8 and 9, in the clinical drainage intelligent control device, the controller 19 can adjust the revolution state of the roller 18 by adjusting the working state of the driving device 10, the revolution state includes the start and stop of revolution, the rotation direction, the rotation angle and the rotation speed, for this purpose, the driving device 10 can be composed of a servo motor and a speed reducer, and as for the existing electromechanical control technology, the controller 19 is adopted to adjust the working state of the servo motor, so that the technical requirements are not difficult to achieve.

Referring to fig. 7, in the clinical drainage intelligent control device, the display screen 16 can display data information and corresponding drainage state grasped in the controller 19, and an operator can know the operation condition and the drainage state of the clinical drainage intelligent control device through the display screen 16, but the information transmission of the display screen 16 is limited, and the operator must obtain the information through an active observation mode; for this purpose, as shown in fig. 4, an alarm 23 and an indicator light 22 may be installed on the controller 19, and both of them can express the working state of the clinical drainage intelligent control device, such as the on-off state, the electric quantity shortage, the drainage start, the drainage end, the drainage pause, etc., through the sound and light signals based on the data information grasped in the controller 19; therefore, the controller 19 can more timely and effectively transmit the information of the running state, the key drainage state and the like of the clinical drainage intelligent control device to the operator.

The intelligent control device for clinical drainage adopts an intelligent design, and can realize functions of timed drainage, constant-speed drainage, quantitative drainage and the like according to preset drainage parameters in the clinical drainage operation, so that the aim of intelligent automatic drainage control is fulfilled, the labor burden is saved, and the safety, stability and accuracy of the drainage operation are improved; the clinical drainage intelligent control device is matched with the conventional drainage bag 27 and the drainage tube 26 for use, and the existing structures of the drainage bag 27 and the drainage tube 26 are not required to be changed, so that the clinical drainage intelligent control device is easier to popularize and use; this clinical drainage intelligent control device has two kinds of mode of ordinary pressure drainage and negative pressure drainage, can satisfy different drainage operation demands such as pleural effusion drainage, abdominal cavity hydrops drainage, and the suitability is stronger, and application scope is wider, has great clinical spreading value.

Example 2

Referring to fig. 6, in the clinical drainage intelligent control device disclosed in embodiment 1, during the drainage process, the connection tube 24 will generate a certain acting force on the drainage bag 27, although the acting force on the drainage bag 27 caused by the connection tube 24 can be reduced by adjusting the placing plate 8 to make the portion of the connection tube 24 between the placing groove 13 and the drainage bag 27 in a natural extending state, there is still a certain unavoidable influence on the data accuracy of the real-time drainage speed and the single real-time drainage volume, and in order to further reduce this influence, this embodiment further has the following improvements on the connection tube 24, and the specific structure is:

referring to fig. 10, the middle-lower section of the connecting tube 24 is prefabricated with a curved section 28 which is easy to deform telescopically, and the curved section 28 is in a spiral curve shape; therefore, after the connecting pipe 24 is connected with the drainage bag 27, the height of the placing plate 8 is adjusted to enable the curve section 28 to be in a natural extension state, and in the drainage process, even if the curve section 28 deforms or moves downwards along with the increase of the effusion in the drainage bag 27, the acting force on the drainage bag 27 cannot change obviously, so that the data accuracy of the real-time drainage speed and the single real-time drainage quantity calculated by the controller 19 is ensured.

Example 3

Referring to fig. 9, in the clinical drainage intelligent control device disclosed in embodiment 1, when the roller 18 revolves forward and enters the arc-shaped gap 7, it squeezes the connection pipe 24 to the blocking state, and then moves the connection pipe 24 that is rolling from the beginning to the end in the arc-shaped gap 7 to drive the accumulated liquid in the connection pipe 24 to flow backward, in this process, the pressure applied by the roller 18 to the connection pipe 24 should be appropriate, on one hand, the connection pipe 24 should be squeezed as much as possible to the arc-shaped side wall 12, so as to improve the fluid output efficiency, and on the other hand, the roller 18 should be prevented from causing excessive pressure to the connection pipe 24, so as to avoid the connection pipe 24 from being damaged, in order to ensure the balance of the above two effects, the matching manner of the roller 18 and the revolution wheel 9 is further improved, and the specific implementation structure is:

referring to fig. 11, the rolling roller 18 is fixed in the roller fork 29 through a rotating shaft, a radial hole 31 with a square cross section is formed inwards on the side wall of the revolving wheel 9, a tensioning pin 32 which is in a square column shape and is in sliding fit with the radial hole 31 is defined in the radial hole 31, a tensioning spring 30 which provides thrust for the tensioning pin is arranged at the bottom of the radial hole 31, and the outer end of the tensioning pin 32 is fixedly connected with the top of the roller fork 29; when the roller 18 and the arc-shaped side wall 12 compress the connecting pipe 24, the tension spring 30 is in a compressed state and is not completely compressed;

therefore, the roller 18 can float along the radial direction of the revolving wheel 9, and has a tensioning function, when the roller passes through the arc-shaped gap 7, the fluid output efficiency can be improved to the maximum extent, and the connecting pipe 24 can be prevented from being damaged due to overlarge pressure applied by the roller 18.

Example 4

Referring to fig. 4 and 5, in the clinical drainage intelligent control device disclosed in embodiment 1, the separation operation of the connection pipe 24 from the drainage adjustment mechanism can be performed only when the roller 18 is at the initial position, and if any one of the components of the controller 19, the power supply component 10, the driving device 10, the drainage adjustment mechanism, etc. fails, when the clinical drainage intelligent control device is shut down, the roller 18 cannot move to the initial position smoothly, so that the connection pipe 24 cannot be separated from the drainage adjustment mechanism smoothly, the medical operation efficiency is reduced, and even the medical treatment time may be delayed, for this reason, the present embodiment has a further improvement on the roller 18 on the basis of the structure of the drainage adjustment mechanism disclosed in embodiment 1, and the specific implementation structure is as follows:

referring to fig. 12, the roller 18 is connected with the revolving wheel 9 through a roller fork 29, a manual rotating handle 33 is installed outside the roller fork 29, the roller 18 can be manually driven to revolve through the manual rotating handle 33, so that the position of the roller 18 can be adjusted according to clinical needs, and the operation is convenient and fast.

Example 5

Referring to fig. 7, in the clinical drainage intelligent control device disclosed in embodiment 1, the controller 19 may obtain the weighing signal continuously fed back by the weighing sensor 21 in real time, and it is mentioned in the foregoing explanation that the foregoing data transmission requirement may be achieved by adding a wireless transmission module, this embodiment obviously increases the overall manufacturing cost of the clinical drainage intelligent control device, and also reduces the working stability of the clinical drainage intelligent control device, it can be seen that a circuit for transmitting data is preferably arranged between the weighing sensor 21 and the controller 19 to ensure stability and economy, but there is a problem that the controller 19 and the weighing sensor 21 are distributed up and down, and the controller 19 may be adjusted in height along with the installation plate 8, which causes that if the circuit is installed in a conventional manner, the circuit is exposed, on the one hand, the overall structure of the clinical drainage intelligent control device is not compact, on the other hand, the exposed circuit is easily damaged by external force due to the lack of necessary protection; therefore, the present embodiment has a further improvement on the matching relationship between the controller 19 and the load cell 21, and the specific implementation structure is as follows:

referring to fig. 13, a signal line 34 for transmitting a weighing signal is connected between the weighing sensor 21 and the controller 19, a threading cavity for extending the signal line 34 is formed in the base 1, the telescopic rod 3 and the mounting plate 8, a portion of the signal line 34 located in the telescopic rod 3 has a coil spring-shaped telescopic section 35, and the telescopic section 35 can be extended and retracted together with the telescopic rod 3.

From this, signal line 34 is because of extending in base 1, telescopic link 3 and mounting plate 8 to can not expose outside, also possessed better guard effect simultaneously, and improved job stabilization nature and life-span.

Example 6

Referring to fig. 1, 6 and 7, in the clinical drainage intelligent control device disclosed in embodiment 1, the weighing type base assembly is formed by sequentially matching a weighing platform 2, a weighing sensor 21 and a base 1 up and down, the weighing sensor 21 outputs a weighing signal capable of reflecting the weight of an object above the weighing platform 2, the structure is similar to an electronic scale, the weight of the accumulated liquid in the drainage bag 27 can be measured and fed back to the controller 19 in the form of a weighing signal, the placement of the weighing base assembly on a horizontal surface during use may provide the most accurate weighing function, but has problems, in the clinical use field, the ground or the platform for placing the weighing type base component is difficult to ensure to be horizontal, the error of the output weighing signal is large or even inaccurate, so that the clinical drainage intelligent control device can not play the expected quantitative drainage and constant-speed drainage; to overcome this technical problem, the present embodiment provides a further improvement to the symmetrical base assembly, and the specific implementation structure thereof is as follows:

referring to fig. 14, four corners of the base 1 are respectively provided with screw holes extending up and down, four bolts 37 are in one-to-one threaded fit with the four screw holes, upper ends of the bolts 37 are respectively fixedly connected with adjusting knobs 38 positioned above the base 1, and lower ends of the bolts 37 are respectively fixedly connected with anchor feet 36 positioned below the base 1; a bubble type level meter 39 is arranged on the weighing platform 2;

therefore, when the intelligent control device for clinical drainage is used, the intelligent control device for clinical drainage is placed on the ground or on a platform, the bubble type level meter 39 is observed to judge whether the weighing type base assembly is horizontally placed or not, the upper position and the lower position of the four ground feet 36 are adjusted according to the condition, the weighing type base assembly tends to be horizontally placed, the weighing function accuracy of the weighing type base assembly is improved, and the quantitative drainage and the constant-speed drainage can be accurately realized by the intelligent control device for clinical drainage finally.

Example 7

Referring to fig. 1 and 2, as the clinical drainage process is mostly performed by a patient lying on a hospital bed, and the intelligent control device for clinical drainage is used as an auxiliary drainage device, the patient needs to be frequently moved back and forth between a ward and an instrument room, and meanwhile, when the intelligent control device is used clinically, the position needs to be adjusted according to the layout of the drainage component, so that the intelligent control device for clinical drainage is small and compact and has great significance in improving portability; in the clinical drainage intelligent control device disclosed in embodiment 1, when carrying and being idle, can move down the place plate 8 and the part supported by it, make the whole volume of clinical drainage intelligent control device reduce to a certain extent, still there is great improvement space for this reason, this embodiment has further improvement to the suspension subassembly and the seat subassembly of settling, and the concrete structure is as follows:

referring to fig. 15 and 16, the vertical rod 4 adopts a telescopic structure so that the vertical position of the suspension beam 6 can be adjusted and locked; the middle part of the suspension beam 6 is provided with a section of bow part 40 which is sunken towards the rear side, the upper end of the upright stanchion 4 is fixedly connected with the bow part 40, the upper end of the telescopic rod 3 is connected with a crank arm 41, the other end of the crank arm 41 is fixedly connected with the top of the rear side of the placing plate 8, and when the telescopic rod 3 and the upright stanchion 4 are both in the shortest state, the placing plate 8 is just positioned in the inner space of the bow part 40; therefore, in clinical use, as shown in fig. 15, the suspension beam 6 and the placing plate 8 are moved upwards and locked respectively, the clinical drainage intelligent control device is in an extending state, and the relative positions of the parts can meet the requirements of work; when the device is not used, as shown in fig. 16, the suspension beam 6 and the placing plate 8 are both moved downwards to the lowest position, and at the moment, the clinical drainage intelligent control device is in a retraction state, so that the device has a small and compact integral structure, and greatly improves the portability and the occupied space when the device is not used;

meanwhile, due to the existence of the arch part 40 in the suspension beam 6, after the connecting pipe 24 is connected with the drainage bag 27, the suspension beam 6 does not form an obstacle to the up-and-down extension of the tail section part of the connecting pipe 24, the connecting pipe 24 can be connected with the drainage bag 27 in a state of tending to natural extension, the acting force generated on the drainage bag 27 is reduced, and in addition, the connection and separation operation of the connecting pipe 24 and the drainage bag 27 is more convenient and smooth.

Example 8

Referring to fig. 6 and 9, in the clinical drainage intelligent control device disclosed in embodiment 1, the one-way output connector 42 is a necessary component, the arrangement and the function of which are described in detail above, and which can be implemented by using the existing one-way valve structure, but there is a problem that most of the existing one-way valves are reset to the cut-off state by an elastic member, so that the conduction of the existing one-way valves needs to reach a certain pressure, and the adoption of the one-way valve with a smaller working pressure can enable normal pressure drainage, but still does not bring a certain resistance to the flow of effusion, thereby reducing the adjustable range of the drainage speed in the normal pressure drainage; based on this, the present embodiment provides an excellent design for the unidirectional output connector 42, and the specific implementation structure thereof is as follows:

as shown in fig. 17, 18 and 19, the one-way output joint 42 comprises a main body 45, an input port 48 is arranged at the upper end of the main body 45 and is connected with the lower end of the connecting pipe 24, and an output port 43 is arranged at the lower end and is connected with the drainage bag 27; a column cavity 47 is formed in the main body 45, a liquid inlet hole 44 is formed in the bottom of the column cavity 47, a liquid discharging hole 50 is formed in the side wall of the middle lower part, and a vent hole 49 communicated with the atmosphere is formed in the upper end of the column cavity; the inlet 48 is communicated with the liquid inlet hole 44 through a flow passage, and the liquid outlet hole 50 is communicated with the outlet 43 through a flow passage; a floating ball 46 with a smooth surface is arranged in the valve cavity, a gap is formed between the floating ball 46 and the side wall of the column cavity 47, so that the liquid discharge hole 50 is always communicated with the vent hole 49, and the floating ball 46 sinks to the bottom of the column cavity 47 and then can be in sealing fit with the liquid inlet hole 44; when the liquid accumulation exists in the column cavity 47, the floating ball 46 floats on the upper surface of the liquid accumulation in the column cavity 47 to enable the liquid inlet hole 44, the liquid outlet hole 50 and the vent hole 49 to be communicated, and when the liquid accumulation does not exist in the column cavity 47, the floating ball 46 sinks by gravity to block the liquid inlet hole 44;

(1) when the fluid is output from the connecting tube 24 and is accumulated, as shown in fig. 17 and 18, the accumulated fluid pushes the floating ball 46 upwards and enters the column cavity 47 through the fluid inlet hole 44, the floating ball 46 rises with the increase of the accumulated fluid in the column cavity 47, the accumulated fluid in the column cavity 47 is discharged through the fluid outlet hole 50 and finally flows into the drainage bag, and the accumulated fluid cannot overflow through the air outlet hole 49 because the air outlet hole 49 is higher than the fluid outlet hole; after the connecting pipe 24 finishes one-time fluid output, as the liquid discharge hole 50 is communicated with the vent hole 49, the accumulated liquid in the valve cavity can continuously flow into the drainage bag, the floating ball 46 sinks along with the reduction of the accumulated liquid in the column cavity 47, and if the accumulated liquid in the connecting pipe 24 flows back, the accumulated liquid in the column cavity 47 disappears, so that the floating ball 46 sinks to the bottom of the column cavity 47 to block the liquid inlet hole 44, and thus the accumulated liquid in the connecting pipe is prevented from flowing back;

(2) when the fluid is output through the connecting pipe 24 and is air, as shown in fig. 19, the air pushes the floating ball 46 to rise and enter the column cavity 47 through the liquid inlet hole 44, then continuously flows upwards through a gap between the floating ball 46 and the column cavity 47, and is finally discharged to the outside, if the drainage bag is provided with an exhaust pipeline, part of the air in the column cavity 47 is also discharged into the drainage bag through the liquid outlet hole 50, and is finally discharged to the outside through the exhaust pipeline of the drainage bag; after the connecting pipe 24 finishes the primary fluid output, the floating ball 46 sinks to the bottom of the column cavity 47 by means of self-weight to block the liquid inlet hole 44, so that the air in the connecting pipe is prevented from flowing back;

after the unidirectional output joint 42 adopts the design, the unidirectional output joint has the unidirectional output characteristic of fluid, and can meet the technical requirements of negative pressure drainage and normal pressure drainage; in addition, because the floating ball 46 can float on the accumulated liquid, the density is low, the pressure required by the conduction of the floating ball is small, namely the working pressure is low, the flowing of the accumulated liquid can not be excessively hindered in the drainage process, and particularly in the normal-pressure drainage, the adjustable range of the drainage speed can be furthest improved;

meanwhile, the one-way output joint 42 is reset to the cut-off state based on the gravity of the floating ball, and the reset force is provided without an additional elastic piece, so that the structure is simple, the working stability of the one-way output joint 42 is ensured, and the service life is prolonged.

Claims

1. The utility model provides a clinical drainage intelligent control device which characterized in that, it includes:

the power supply assembly is arranged on the mounting plate, consists of a storage battery and a plurality of voltage transformation modules and is used for providing working current for the driving device and the controller;

the one-way output joint comprises a main body, the upper end of the main body is provided with an input port connected with the lower end of the connecting pipe, and the lower end of the main body is provided with an output port connected with the drainage bag; a column cavity is arranged in the main body, a liquid inlet hole is formed in the bottom of the column cavity, a liquid discharge hole is formed in the side wall of the middle lower part, and a vent hole communicated with the atmosphere is formed in the upper end of the column cavity; the input port is communicated with the liquid inlet hole through a flow channel, and the liquid outlet hole is communicated with the output port through a flow channel; a floating ball with a smooth surface is arranged in the valve cavity, a gap is formed between the floating ball and the side wall of the column cavity, so that the liquid discharge hole is always communicated with the vent hole, and the floating ball can be in sealing fit with the liquid inlet hole after sinking to the bottom of the column cavity; when the column cavity is internally provided with the accumulated liquid, the floating ball floats on the upper surface of the accumulated liquid in the column cavity to communicate the liquid inlet hole, the liquid outlet hole and the air vent, and when the accumulated liquid does not exist in the column cavity, the floating ball sinks by gravity to plug the liquid inlet hole.

2. The intelligent control device for clinical drainage according to claim 1, wherein: in the normal pressure drainage mode, the controller is based on real-time drainage speed, single real-time drainage volume and drainage parameters, and the mode of regulating and controlling the revolution state of the roller is as follows:

a. during primary drainage, the controller enables the roller to perform forward revolution according to preset initial drainage starting time, and when the weighing signal changes, the roller continues to perform forward revolution until the connecting pipe is in a conducting state, and primary drainage is started; in each drainage, the controller makes the roller revolve and adjust the position according to the preset initial time of each drainage, so that the connecting pipe keeps a conducting state, namely, the timed drainage is realized;

b. in the drainage process, the controller enables the roller to perform corresponding forward revolution or reverse revolution according to the real-time drainage speed to adjust the extrusion degree of the roller on the connecting pipe, so that the effusion speed in the connecting pipe is increased or reduced, and finally the real-time drainage speed is approximately equal to the preset drainage speed, namely constant-speed drainage is realized;

c. in the drainage process, the controller calculates the initial single real-time drainage volume that reaches to present of this time drainage in real time, and when the single real-time drainage volume reached preset single drainage volume, the controller will order about the roll revolution and adjusting position, makes the connecting pipe extruded to the state of blocking, and this time drainage finishes, realizes the ration drainage promptly this time.

3. The intelligent control device for clinical drainage according to claim 1, wherein: in the negative pressure drainage mode, the controller is based on real-time drainage speed, single real-time drainage volume and drainage parameter, and the mode of regulating and controlling the revolution state of the roller is as follows:

a. according to the preset drainage starting time, the controller drives the roller to perform positive revolution, drives the effusion to flow into the drainage bag from the human body, and then the timing drainage is realized;

b. in the drainage process, the controller adjusts the rotation speed of the forward revolution of the roller according to the real-time drainage speed, so that the average flow velocity of the accumulated liquid in the connecting pipe is increased or reduced, and finally the real-time drainage speed is approximately equal to the preset drainage speed, namely, constant-speed drainage is realized;

c. in the drainage process, the controller calculates the initial single real-time drainage volume that reaches to present of this time drainage in real time, and when the single real-time drainage volume reached preset single drainage volume, the controller will make the roll stop the revolution under the condition of connecting pipe extruded to the state of blocking, and this time drainage finishes, realizes the ration drainage promptly this time.