CN109331254B

CN109331254B - Multifunctional medical drainage control device

Info

Publication number: CN109331254B
Application number: CN201811135105.2A
Authority: CN
Inventors: 毕胜成; 孟荣华; 王双; 王才丰
Original assignee: Taipingyang Kangtai Scientific Apparatus Jinan Co ltd
Current assignee: TAIPINGYANG KANGTAI SCIENTIFIC APPARATUS (JINAN) Co.,Ltd.
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2021-03-12
Anticipated expiration: 2038-09-28
Also published as: CN109481758A; CN109481759A; CN109331254A; CN112741933A; CN109481760A; CN109481755A; CN112295026A; CN109481757A; CN109481756A

Abstract

The invention relates to the field of medical instruments and discloses a multifunctional medical drainage control device, which consists of a support component, a weight-counting type suspension support component, a drainage adjusting component, a controller and a power supply component, wherein the weight-counting type suspension support component, the drainage adjusting component, the controller and the power supply component are supported by the support component; the weight-measuring suspension support component can provide support for the drainage bag and feed back a weight signal to the controller; the controller can regulate and control the working state of the drainage regulating assembly based on the acquired weight signal, a preset drainage mode and drainage parameters, so that the drainage regulating assembly can extrude the drainage tube in different modes to realize the operation and control of negative pressure drainage and normal pressure drainage; this multi-functional medical drainage controlling means adopts intelligent design, uses the automatic control that can realize regularly drainage, 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, has wide application prospect clinically.

Description

Multifunctional medical drainage control device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a multifunctional medical drainage control device which can automatically control various drainage operations clinically.

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 a multifunctional medical drainage control device which adopts an intelligent design, can be matched with the existing drainage bag and a drainage tube for use to realize normal-pressure drainage and negative-pressure drainage, and can automatically control each drainage process according to preset drainage parameters such as drainage starting time, single drainage quantity, single drainage speed and the like.

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

a multi-functional medical drainage control device, comprising:

the support component consists of a base, a vertical column which is supported by the base and extends vertically, and a setting plate which is supported by the vertical column, positioned above the base and positioned at the front side of the vertical column;

the weighing type suspension support assembly is supported by the placing plate, a weighing sensor is arranged in the weighing type suspension support assembly, and a suspension part is arranged at the lower end of the weighing type suspension support assembly; the drainage bag support device is used for providing only support for the drainage bag and enabling the drainage bag to be suspended below the placement plate, the height of the drainage bag can be adjusted, and the weighing sensor outputs a weight signal capable of reflecting the weight change state of accumulated liquid in the drainage bag;

the drainage adjusting component comprises a concave seat arranged on the front side of the mounting plate, an introduction groove, a leading-out groove, a communicating groove and an extrusion mechanism limited in the concave seat; a pipe placing gap for accommodating the drainage pipe is formed between the upper side wall and the lower side wall of the concave seat and the extrusion mechanism respectively, the end parts of the two pipe placing gaps positioned on one side are communicated with the introducing groove and the leading-out groove respectively, and the end parts of the two pipe placing gaps positioned on the other side are communicated through the communicating groove, so that the drainage pipe can extend through the two pipe placing gaps in sequence under the guide of the introducing groove, the communicating groove and the leading-out groove; the extrusion mechanism comprises a longitudinal pressing block and two transverse pressing blocks positioned on the same side of the longitudinal pressing block, the longitudinal pressing block is driven by the first electric feeding mechanism to move between the two pipe placing gaps, the longitudinal pressing block moves towards one direction to gradually extrude the leading-in end of the drainage pipe to a blocking state, and the longitudinal pressing block moves towards the other direction to gradually extrude the leading-out end of the drainage pipe to the blocking state; the two transverse pressing blocks are driven by the second electric feeding mechanism together to be far away and close, and when the two transverse pressing blocks are far away, the two transverse pressing blocks respectively extrude the drainage tubes in the gaps between the two tubes at the same time to drive the fluid between the inlet end and the outlet end in the drainage tubes to be discharged; when the longitudinal pressing block and the two transverse pressing blocks are in the initial positions, the longitudinal pressing block and the two transverse pressing blocks do not extrude the drainage tube in any tube placing gap;

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 weight 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 weight signal; the controller can adjust the positions of the longitudinal pressing block and the two transverse pressing blocks based on the regulation and control of the working states of the first electric feeding mechanism and the second electric feeding mechanism; in the negative pressure drainage mode, the controller firstly adjusts the position of the longitudinal pressing block to ensure that the leading-in end of the drainage tube is kept blocked and the leading-out end of the drainage tube is kept conducted, and then two transverse pressing blocks are kept away, so that primary fluid output is finished; after the fluid output is finished, the controller firstly adjusts the position of the longitudinal pressing block to ensure that the leading-out end of the drainage tube is kept blocked and the leading-in end of the drainage tube is kept conducted, then the two transverse pressing blocks are close to and reset to the initial position, and the fluid suction is finished once in the process that the drainage tube flattened by the two transverse pressing blocks is restored to the original state; the controller regulates and controls the working state of the drainage regulating assembly, so that the fluid output and the fluid suction are alternately and circularly performed, and the negative pressure drainage is realized; in the normal-pressure drainage mode, normal-pressure drainage is realized based on a siphon effect, and the controller adjusts the extrusion degree of the longitudinal pressing block on the drainage tube introduction end based on the real-time drainage speed, the single real-time drainage quantity and preset drainage parameters, so that the timed drainage, the constant-speed drainage and the quantitative drainage are realized; after the controller receives a shutdown instruction, the longitudinal pressing block and the two transverse pressing blocks are adjusted to initial positions and then shutdown is executed; 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 elements in the weighing type suspension support assembly, the drainage adjusting assembly and the controller.

The use method and the working principle of the multifunctional medical drainage control device are as follows:

the multifunctional medical drainage control device is placed on the ground or a platform, the upper end of the drainage bag is fixed on the suspension part, so that the drainage bag is suspended above the base, and if normal-pressure drainage is carried out, the drainage bag is required to be lower than a drainage source; the middle-lower section of the drainage tube enters a corresponding tube placing gap through an introduction groove, then the drainage tube enters another tube placing gap through a communication groove, finally the drainage tube is led out through a leading-out groove, so that the drainage tube sequentially passes through the two tube placing gaps, the lower end of the drainage tube is connected with a drainage bag, the height of the drainage bag is adjusted through a hanging part, the part of the drainage tube between the leading-out groove and the drainage bag is in a natural extension state, the front end of the drainage tube is communicated with and fixed with a chamber to be drained of a patient according to conventional drainage operation, a multifunctional medical drainage control device is adjusted to a starting state through a set key, a drainage mode and drainage parameters are preset in a controller according to clinical requirements by using the set key, and at the moment, the early preparation work of the drainage operation is completed; then, in a negative pressure drainage mode, the controller regulates and controls the working state of the drainage regulating assembly, so that the longitudinal pressing block and the two transverse pressing blocks change stations according to a preset rule, corresponding extrusion is applied to the drainage tube, the drainage tube alternately outputs and sucks fluid, accumulated fluid in the drainage tube is continuously caused to flow towards the direction of the drainage bag, the accumulated fluid is forced to flow into the drainage bag from a human body, and negative pressure drainage is realized; in the normal pressure drainage mode, can realize the drainage based on the siphon effect, the controller is based on real-time drainage speed, single real-time drainage volume and preset drainage parameter, adjusts the position of vertical briquetting, and the extrusion degree of vertical briquetting to the drainage tube introduction end is adjusted to indirect promptly, realizes regularly drainage, constant speed drainage and ration drainage from this.

This multi-functional medical drainage controlling means has following beneficial effect:

the multifunctional medical drainage control device adopts an intelligent design, can be used by being matched with the conventional drainage tube and the drainage bag 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 reduces the work burden of medical workers because no human interference is 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 multifunctional medical drainage control device controls the drainage quantity and the drainage speed based on the coordination of the sensing device, the controller and the electric system, and compared with manual observation and control in the prior art, the multifunctional medical drainage control device is more accurate in control, so that the drainage effect is further ensured; the multifunctional medical drainage control device realizes the adjustment of the drainage speed and the generation of drainage negative pressure based on the extrusion of components in the drainage adjusting assembly to the drainage tube in different modes, ensures the sealing property of a hydrops drainage pipeline, and ensures the absolute isolation of the hydrops from the multifunctional medical drainage control device, and is safe and sanitary; meanwhile, the drainage adjusting component adopts scientific and ingenious structural design, and the utilization rate of components is exerted to the maximum, so that the multifunctional medical drainage control device has a more compact structure and lower implementation cost; in conclusion, the multifunctional medical drainage 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 can be used repeatedly.

Drawings

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

Fig. 2 is a second schematic view of the overall structure of the multifunctional medical drainage control device in embodiment 1.

Fig. 3 is a schematic structural diagram of the upper half part of the multifunctional medical drainage control device in the embodiment 1.

FIG. 4 is a schematic view of the structure of the drainage regulating assembly combined with a drainage tube in example 1.

FIG. 5 is a schematic view showing the operation of the drainage regulating assembly for promoting the fluid output of the drainage tube in the embodiment 1.

FIG. 6 is a schematic view showing the operation of the drainage regulating assembly for causing the drainage tube to suck fluid in the embodiment 1.

FIG. 7 is a schematic diagram of the operation of the drainage regulating assembly for controlling the drainage state in the normal pressure drainage in the embodiment 1.

Fig. 8 is a schematic view of a clinical use state of the multifunctional medical drainage control device in embodiment 1.

Fig. 9 is a second schematic view of the multifunctional medical drainage control device in the embodiment 1 in a clinical use state.

Fig. 10 is a control schematic diagram of the multifunctional medical drainage control device in the embodiment 1 during operation.

Fig. 11 is a schematic structural view of a weighted suspension assembly in embodiment 1.

FIG. 12 is a schematic view showing the construction of a drainage regulating module according to embodiment 1.

Fig. 13 is a schematic diagram of the second electric feeding mechanism and two transverse pressing blocks in the embodiment 1.

Fig. 14 is a schematic view of a connection structure of the weighted suspension assembly and the installation plate in embodiment 2.

FIG. 15 is a schematic view showing the connection of the swing seat, the installation plate and the weight-measuring suspension assembly according to embodiment 2.

Fig. 16 is a schematic structural view illustrating that the installation plate can be combined with the fastener and the pillar via the combination seat in embodiment 3.

FIG. 17 is a schematic view of the multifunctional medical drainage control device of example 3 supported by an infusion rod.

Fig. 18 is a schematic structural diagram of a card firmware in embodiment 3 after further improvement.

FIG. 19 is a schematic view of the embodiment 3 with the clamping member further modified to be combined with the infusion rod.

Fig. 20 is a schematic view of the cover plate and the installation plate in the working state of embodiment 4.

Fig. 21 is a schematic view of the cover plate and the installation plate in the non-operating state according to embodiment 4.

FIG. 22 is a schematic view showing the locking mechanism, the cover plate and the mounting plate according to embodiment 4.

Fig. 23 is a schematic view of the one-way output joint in the embodiment 5 when the fluid is output and the fluid is a liquid accumulation.

FIG. 24 is a schematic view showing the floating ball stopping the backflow of the accumulated liquid after the fluid output is completed in embodiment 5.

Fig. 25 is a schematic view of the one-way output joint in the embodiment 5 when the fluid is output and the fluid is air.

In the figure, 1, a base, 2, a column, 3, a weight-measuring type suspension support assembly, 4, an outlet groove, 5, a longitudinal pressing block, 6, a placing plate, 7, an inlet groove, 8, a concave seat, 9, a transverse pressing block, 10, a communication groove, 11, a setting key, 12, a display screen, 13, a hanging part, 14, a first electric feeding mechanism, 15, a second electric feeding mechanism, 16, a power supply assembly, 17, a weighing sensor, 18, a drainage tube, 19, a drainage bag, 20, a locking mechanism, 21, a sliding sleeve, 22, a weighing rod, 23, a hook, 24, a guide groove A, 25, a guide groove B, 26, a first servo motor, 27, a guide block A, 28, a screw rod A, 29, a guide block B, 30, a screw rod B, 31, a second servo motor, 32, a left-handed thread section, 33, a right-handed thread section, 34, a second rotating shaft, 35, a swinging seat, 36, a first rotating shaft, 37, an angle limiting mechanism, 38, an angle, Damping pad, 39, clamping piece, 40, T-shaped rib, 41, T-shaped groove, 42, combined seat, 43, transfusion rod, 44, limiting seat, 45, floating holding block, 46, antiskid rubber pad, 47, sliding chute, 48, sliding block, 49, arc end, 50, clamping port, 51, reset spring, 52, locking mechanism, 53, hinge, 54, pressing holding block, 55, cover plate, 56, locking magnetic sheet, 57, elastic sheet, 58, strong magnetic block, 59, tongue sheet, 60, output port, 61, liquid inlet hole, 62, main body, 63, floating ball, 64, column cavity, 65, input port, 66, vent hole, 67 and liquid outlet hole.

Detailed Description

Example 1

Referring to fig. 1-3, the present embodiment discloses a multifunctional medical drainage control device, which comprises five parts, namely a support assembly, a weight-measuring suspension assembly 3, a drainage adjustment assembly, a controller and a power supply assembly 16;

referring to fig. 1 and 2, the support assembly is composed of a base 1, a column 2 and a setting plate 6, wherein the column 2 is supported by the base 1 and extends vertically, and the setting plate 6 is supported by the column 2 and is located above the base 1 and at the same time is located at the front side of the column 2; the placing plate 6 is used for providing a supporting and installing space for other components;

as shown in fig. 2, 8, 9 and 10, the weight-measuring suspension assembly 3 is supported by the mounting plate 6, a load cell 17 is arranged in the weight-measuring suspension assembly, and a suspension part 13 is arranged at the lower end of the weight-measuring suspension assembly; the weight-measuring type suspension support assembly 3 is used for providing only support for the drainage bag 19 and enabling the drainage bag 19 to be suspended below the placing plate 6, the height of the drainage bag 19 can be adjusted, and the weighing sensor 17 outputs a weight signal capable of reflecting the weight change state of accumulated liquid in the drainage bag 19;

as shown in fig. 3-7, the drainage regulating assembly comprises a recess 8, an introducing groove 7, an extracting groove 4, a communicating groove 10 and a pressing mechanism; the concave seat 8, the lead-in groove 7, the lead-out groove 4 and the communicating groove 10 are arranged on the front side wall of the placing plate 6, and the extrusion mechanism is limited in the concave seat 8; a pipe placing gap for accommodating the drainage pipe 18 is formed between the upper side wall and the lower side wall of the concave seat 8 and the extrusion mechanism respectively, the end parts of the two pipe placing gaps at one side are communicated with the introducing groove 7 and the leading-out groove 4 respectively, and the end parts of the two pipe placing gaps at the other side are communicated through the communicating groove 10, so that the drainage pipe 18 can sequentially extend through the two pipe placing gaps in a U shape under the guidance of the introducing groove 7, the communicating groove 10 and the leading-out groove 4; the extrusion mechanism comprises a longitudinal pressing block 5 and two transverse pressing blocks 9, the longitudinal pressing block 5 is driven by a first electric feeding mechanism 14 to move between two pipe placing gaps, the longitudinal pressing block 5 moves towards one direction to gradually extrude the inlet end of the drainage pipe 18 in the pipe placing gap opposite to the side wall corresponding to the concave seat 8 until the inlet end of the drainage pipe 18 is extruded to a blocking state, the longitudinal pressing block 5 moves towards the other direction to gradually extrude the outlet end of the drainage pipe 18 in the pipe placing gap opposite to the side wall corresponding to the concave seat 8 until the outlet end of the drainage pipe 18 is extruded to the blocking state; the two transverse pressing blocks 9 are positioned at the same side of the longitudinal pressing block 5, the two transverse pressing blocks 9 are driven by the second electric feeding mechanism 15 together to be far away and close, when the two transverse pressing blocks 9 are far away, the two transverse pressing blocks respectively and the corresponding side walls of the concave seats 8 simultaneously extrude the drainage tube 18 in the gap between the two placed tubes, and fluid between the inlet end and the outlet end in the drainage tube 18 is driven to be discharged; when the longitudinal pressing block 5 and the two transverse pressing blocks 9 are at the initial positions, the drainage tube 18 in any tube gap is not extruded; the inlet end and the outlet end of the drainage tube 18 are respectively the tube sections of the drainage tube 18 positioned in the tube placing gap and close to the inlet groove 7 and the outlet groove 4;

referring to fig. 3 and 10, the controller is fixed on the setting plate 6, and a setting key 11 and a display screen 12 are arranged on the front side of the controller; the setting key 11 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 obtain a weight signal continuously fed back by the weighing sensor 17 in real time, and calculate the real-time drainage speed and the single real-time drainage quantity according to the weight signal; the controller can adjust the positions of the longitudinal pressing block 5 and the two transverse pressing blocks 9 based on the regulation and control of the working states of the first electric feeding mechanism 14 and the second electric feeding mechanism 15; referring to fig. 5, 6 and 10, in the negative pressure drainage mode, the controller firstly adjusts the position of the longitudinal pressing block 5 to keep the leading-in end of the drainage tube 18 blocked and the leading-out end conducted, and then keeps the two transverse pressing blocks 9 away, in the process, the drainage tube 18 in the middle tube gap is flattened, and the internal fluid is discharged from the leading-out end, thereby completing primary fluid output; after the fluid is output, the controller firstly adjusts the position of the longitudinal pressing block 5 to ensure that the leading-out end of the drainage tube 18 is kept blocked and the leading-in end is kept conducted, then the two transverse pressing blocks 9 are close until the drainage tube is reset to the initial position, the drainage tube 18 flattened by the two transverse pressing blocks 9 is restored by the elasticity of the drainage tube 18, and the fluid is sucked into the drainage tube 18 in the tube placing gap through the leading-in end in the process, so that the primary fluid suction is completed; the controller regulates and controls the working state of the drainage regulating assembly, so that the fluid output and the fluid suction are alternately and circularly carried out, thereby realizing negative pressure drainage, and the controller regulates and controls the working states of start-stop, duration, working frequency and the like of the fluid output and the fluid suction based on the real-time drainage speed, the single real-time drainage quantity and preset drainage parameters, thereby realizing the timed drainage, the constant-speed drainage and the quantitative drainage; referring to fig. 7 and 10, in the normal pressure drainage mode, normal pressure drainage is realized based on a siphon effect, and the controller adjusts the position of the longitudinal pressing block 5 based on a real-time drainage speed, a single real-time drainage quantity and preset drainage parameters, that is, adjusts the extrusion degree of the longitudinal pressing block 5 to the inlet end of the drainage tube 18, so as to realize timed drainage, constant-speed drainage and quantitative drainage, wherein the fluid is accumulated liquid or air in the drainage tube 18; as shown in fig. 4, after receiving the shutdown instruction, the controller firstly adjusts the longitudinal pressing block 5 and the two transverse pressing blocks to the initial positions and then performs shutdown, thereby ensuring that the drainage tube 18 can be smoothly separated from the tube placing gap after the drainage operation is finished, and also ensuring that the drainage tube 18 can be smoothly placed in the tube placing gap when the multifunctional medical drainage control device is used next time; the display screen 12 is used for displaying data information held by the palm in the controller, 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-process, drainage pause, drainage end and the like, so that an operator can know drainage conditions in time;

as shown in fig. 2, the power supply module 16 is mounted on the mounting plate 6, and is composed of a storage battery and a plurality of voltage transformation modules, and is used for supplying operating current to the weighing suspension assembly 3, the current-guiding adjustment assembly, and the components in the controller; the structure of the power module 16 and its connection to other components are not described in detail since they are readily implemented using conventional techniques.

referring to fig. 1, 2, 4, 8 and 9, the multifunctional medical drainage control device is placed on the ground or a platform, the upper end of the drainage bag 19 is fixed on the hanging part 13, the drainage bag 19 is suspended above the base 1, and if normal pressure drainage is carried out, the drainage bag 19 is required to be lower than a drainage source; the middle lower section of a drainage tube 18 is arranged in a corresponding tube placing gap through an introduction groove 7, then the drainage tube 18 is arranged in another tube placing gap through a communication groove 10, finally the drainage tube 18 is led out through a leading-out groove 4, so that the drainage tube 18 sequentially passes through the two tube placing gaps, the lower end of the drainage tube 18 is connected with a drainage bag 19, the height of the drainage bag 19 is adjusted through a hanging part 13, the part of the drainage tube 18, which is positioned between the leading-out groove 4 and the drainage bag 19, is in a natural extension state, the front end of the drainage tube 18 is communicated with a chamber to be drained of a patient and fixed according to the conventional drainage operation, a multifunctional medical drainage control device is adjusted to a starting state through a setting key 11, a drainage mode and drainage parameters are preset in a controller according to clinical requirements by using the setting key 11, and the early preparation work of the drainage operation is completed; afterwards, the controller alright carry out automatic control to drainage adjusting part's operating condition based on real-time drainage speed, single real-time drainage volume and preset drainage mode and drainage parameter, and concrete regulation and control mode is:

(1) as shown in fig. 5, 6, 7, 10, in the normal pressure drainage mode:

A. during primary drainage, firstly, the controller regulates and controls the working state of the drainage regulating assembly to promote the drainage tube 18 to alternately circulate to output and suck fluid, so that the fluid in the drainage tube 18 flows towards the drainage bag, when the weighing sensor 17 senses weight change, the situation that partial accumulated fluid enters the drainage bag 19 is shown, then the controller enables the two transverse pressing blocks 9 to be regulated to the initial position and regulates the position of the longitudinal pressing block 5, so that the leading-in end and the leading-out end of the drainage tube 18 in the tube placing gap are kept in a conducting state, at the moment, primary drainage is started, and normal-pressure drainage can be normally carried out by means of a siphon effect; in each drainage, the controller adjusts the position of the longitudinal pressing block 5 according to the preset initial time of each drainage to enable the drainage tube 18 to be in a conducting state, namely, the timed drainage is realized;

B. in the drainage process, the controller adjusts the extrusion degree of the longitudinal pressing block 5 to the introduction end of the drainage tube 18 in the gap between the opposite tubes according to the real-time drainage speed, so that the effusion speed in the drainage tube 18 is increased or reduced, and finally the real-time drainage speed is approximately equal to the preset drainage speed, namely, the constant-speed drainage is realized;

C. in the drainage process, the controller calculates the single real-time drainage amount from the initial drainage to the current one, when the single real-time drainage amount reaches the preset single drainage amount, the controller adjusts the position of the longitudinal pressing block 5, so that the longitudinal pressing block 5 extrudes the introduction end of the drainage tube 18 in the tube placing gap to a blocking state, and the quantitative drainage is realized when the drainage is finished;

(2) as shown in fig. 5, 6, 10, in the negative pressure drainage mode:

A. according to the preset drainage starting time, the controller regulates and controls the working state of the drainage regulating component, so that the drainage tube 18 is promoted to alternately and circularly output and suck the fluid, and the fluid in the drainage tube 18 flows towards the drainage bag, namely the timing drainage is realized;

B. in the drainage process, the controller adjusts the working state of the drainage adjusting component according to the real-time drainage speed, namely adjusts the running states of fluid output and fluid suction, and finally enables the real-time drainage speed to be equal to the preset drainage speed, namely constant-speed drainage is realized, wherein the running states of the fluid output and the fluid suction comprise the starting and stopping, the duration and the working frequency of the fluid output and the fluid suction;

C. in the drainage process, the controller calculates the single real-time drainage volume of the initial drainage to the present time in real time, after the single real-time drainage volume reaches the preset single drainage volume, the controller adjusts the position of the longitudinal pressing block 5, so that the longitudinal pressing block 5 extrudes the leading-out end of the drainage tube 18 in the tube placing gap to a blocking state, then the two transverse pressing blocks 9 are adjusted to the initial position, at the moment, the drainage is finished, and at the moment, the drainage tube 18 is extruded by the longitudinal pressing block 5 to keep the blocking state, and the quantitative drainage is realized.

In the negative pressure drainage mode, after drainage is finished, the controller adjusts the position of the longitudinal pressing block 5 to enable the longitudinal pressing block to extrude the leading-out end of the drainage tube 18 in the tube placing gap to be in a blocking state, and then the two transverse pressing blocks 9 are adjusted to be at initial positions; the technical characteristics are that when the negative pressure drainage is suspended or finished, the leading-out end of the drainage tube 18 is extruded to a blocking state by the longitudinal pressing block 5 to avoid the backflow of accumulated liquid in the drainage tube 18, and the transverse pressing block 9 does not extrude the drainage tube 18, so that the drainage tube 18 in the tube placing gap can be automatically restored to an original state, namely a cylindrical shape, the long-term flattening state is avoided, the elasticity is greatly reduced, and the follow-up negative pressure drainage can be stably carried out.

Referring to fig. 5, 6 and 10, when the multifunctional medical drainage control device is used clinically, in the negative pressure drainage process, the drainage adjusting assembly enables the longitudinal pressing block 5 and the two transverse pressing blocks 9 to perform corresponding extrusion on the drainage tube 18 according to a specific rule under the regulation and control of the controller, so that the negative pressure drainage is realized and the negative pressure drainage state can be regulated and controlled; in the negative pressure drainage process, the structure that vertical briquetting 5, two horizontal briquetting 9 and lie in two drainage tubes 18 that put in the pipe clearance and constitute can be regarded as a displacement pump, and theory of operation is very similar with the diaphragm pump, and based on this, drainage adjusting part can realize the negative pressure drainage and can carry out corresponding control to the negative pressure drainage state under the regulation and control of controller, and concrete theory of operation is as follows:

outputting the fluid:

as shown in fig. 5, after one negative pressure suction is completed, the longitudinal pressing block 5 is located at a position for extruding the leading-out end of the drainage tube 18 to a blocking state, and the two transverse pressing blocks 9 are located at initial positions; when the controller adjusts the position of the longitudinal pressing block 5, the longitudinal pressing block 5 extrudes the leading-in end of the drainage tube 18 in the tube placing gap to a blocking state, the leading-out end of the drainage tube 18 in the tube placing gap is communicated with the drainage bag 19, when the two transverse pressing blocks 9 are far away, the drainage tube 18 in the tube placing gap is respectively extruded by the two transverse pressing blocks 9, the volume is changed, and the accumulated liquid in the drainage tube flows towards the direction of the drainage bag 19, so that the fluid output is realized; in the process that the longitudinal pressing block 5 moves from the leading-out end to the leading-in end, a unblocked period exists when the leading-in end, the leading-out end and the drainage tube 18 between the leading-in end and the leading-out end are all in a conducting state, but generally speaking, a one-way valve mechanism for preventing the backflow of fluid basically exists in the conventional common drainage assembly, so that the backflow of the fluid in the drainage tube 18 in the unblocked period can be prevented; in the other step, even though the drainage assembly does not have the function of enabling the fluid to flow in a single direction, the technical requirement of preventing the fluid from flowing back can be easily met by adding the existing one-way valve mechanism at the joint of the drainage tube 18 and the drainage bag 19;

fluid intake:

as shown in fig. 6, when the drainage tube 18 is driven by the drainage regulating assembly to complete the primary fluid output, the introducing end of the drainage tube 18 in the tube placing gap is in a blocking state, the leading end is in a conducting state, and the drainage tube 18 between the introducing end and the leading end is in a squashed state; when the controller adjusts the position of the longitudinal pressing block 5, the leading-out end of the drainage tube 18 in the tube placing gap is in a blocking state, the leading-in end is in a conducting state and communicated with the human body, when the two transverse pressing blocks 9 approach and reset to the initial position, the drainage tube 18 which is originally positioned between the leading-out end and the leading-in end and is squashed by the two transverse pressing blocks 9 can gradually restore to a cylindrical shape by virtue of the elasticity of the drainage tube 18, the front end of the drainage tube 18 generates negative pressure along with the increase of the volume, and the accumulated liquid in the human body is sucked into the drainage tube 18, namely fluid suction is realized;

the realization of negative pressure drainage:

when the drainage regulating assembly prompts the drainage tube 18 to alternately carry out fluid output and fluid suction, the fluid in the drainage tube 18 can be ensured to flow towards the drainage bag all the time, namely, the negative pressure drainage is realized;

adjusting the negative pressure drainage state:

when the controller enables the drainage adjusting component to work according to the mode, the negative pressure drainage is realized; when the drainage adjusting assembly stops working and the leading-out end of the drainage tube 18 in the tube placing gap is extruded to a blocking state by the aid of the longitudinal pressing block 5, the negative pressure drainage is suspended or ended; when the frequency of the fluid output and the fluid suction is increased and the duration of the fluid output and the fluid suction is shortened, the drainage speed can be increased, and otherwise, the drainage speed is reduced.

Referring to fig. 2, 8 and 9, in the above-mentioned multifunctional medical drainage control device, the weight-measuring suspension support assembly 3 has two functions, on one hand, the weight-measuring suspension support assembly 3 provides stable support for the drainage bag 19 to make the drainage bag 19 in a suspension shape and have a basic function of containing drainage effusion during drainage, on the other hand, in the drainage process, the weighing sensor 17 in the weight-measuring type suspension support assembly 3 can output a weight signal reflecting the weight change state of the accumulated liquid in the drainage bag 19, provide basic data for the data processing of the controller, meanwhile, the weight-measuring suspension support component 3 can also adjust the height of the drainage bag 19 within a certain range, so that after the drainage bag 19, the drainage tube 18 and the multifunctional medical drainage control device are combined, the part of the drainage tube 18 between the drainage groove 4 and the drainage bag 19 can be adjusted to be in a natural stretching shape; in terms of the prior art, the weight-measuring suspension support assembly 3 can be obtained by slightly improving the structure of the existing electronic scale, and the specific structure has various implementation modes; however, in order to make the weighing suspension support assembly 3 more compact and more stable under the condition that it satisfies the above requirements, the weighing suspension support assembly 3 is preferably implemented by adopting the following structure:

as shown in fig. 11, the weight-measuring suspension assembly 3 includes a sliding sleeve 21, a weighing rod 22, a load cell 17 and a suspension portion 13; the sliding sleeve 21 is fixed on the placing plate 6, an inner cavity with an open lower end and a blind upper end is arranged in the sliding sleeve 21, the middle upper part of the weighing rod 22 is positioned in the sliding sleeve 21 and the weighing rod 22 can only slide up and down relatively, and the weighing sensor 17 is fixed in the sliding sleeve 21 and provides upward support for the weighing rod 22; the upper end of the suspension part 13 is connected with the lower end of the weighing rod 22 in an inserting way, and a locking mechanism 20 for locking the relative positions of the suspension part and the weighing rod is arranged between the suspension part and the weighing rod; after the drainage bag 19 is fixedly connected with the hanging part 13, the weighing sensor 17 can pick up the weight change state of the accumulated liquid in the drainage bag 19 and output a corresponding weight signal;

in addition, generally speaking, most of the drainage bags 19 used in clinical practice at present are provided with a hanging ring at the top for convenient hanging, so that the lower end of the hanging part 13 can be provided with a hook 23 for matching with the hanging ring of the drainage bag 19, and in order to prevent the drainage bag 19 and the hanging part 13 from rotating relatively, the hook 23 can be made by bending a lath-shaped material; meanwhile, the lower end of the hanging part 13 can also be provided with a clamping mechanism which can clamp and fix the upper end of the drainage bag 19;

in the structure of the weight-counting suspension support assembly 3, the suspension part 13 cannot rotate relative to the placing plate 6, so that stable support can be provided for the drainage bag 19, and the phenomenon that the weight counting is not accurate due to the rotation or shaking of the drainage bag 19 in the drainage process is avoided; the hanging part 13 and the weighing rod 22 can transmit the weight change of the accumulated liquid in the drainage bag 19 to the weighing sensor 17; the hanging part 13 can be adjusted in position in the vertical direction so as to adjust the height of the drainage bag 19; the structure meets the basic function requirement of the weight-measuring type suspension support component 3, and has the advantages of simple structure, accurate measurement, small size, compactness and easy implementation.

Referring to fig. 5 and 6, when the multifunctional medical drainage control device is used clinically, in the negative pressure drainage process, the drainage tube 18 deforms through the elastic capacity of the drainage tube 18 to provide necessary pressure for negative pressure drainage, generally speaking, the drainage tube 18 used clinically at present has better elasticity, and in the initial stage of negative pressure drainage, the elastic performance of the drainage tube 18 is optimal to meet the aforementioned negative pressure requirement, but as the number of times of extrusion increases, the elastic performance of the drainage tube 18 in the tube placing gap is weakened, and the maximum negative pressure which can be provided by the elastic capacity of the drainage tube 18 is reduced; however, in the use process of the multifunctional medical drainage control device, the multifunctional medical drainage control device can be placed at a position lower than a patient, in addition, the drainage adjusting component acts on the middle lower part of the drainage tube 18, the gravitational potential energy of effusion in the drainage tube 18 can relieve the requirement of required negative pressure in the drainage process, the additionally provided negative pressure is smaller in the situation, and even if the elasticity of the drainage tube 18 in the tube placing gap is weakened, enough negative pressure can be still provided for negative pressure drainage.

Referring to fig. 8, 9 and 10, in the clinical use process of the multifunctional medical drainage control device, the weight of the drainage bag 19 and the effusion inside the drainage bag is almost completely borne by the hanging part 13, that is, almost the whole weight of the drainage bag 19 and the effusion inside the drainage bag is finally transmitted to the weighing sensor 17 through the hanging part 13, the weights of the hanging part 13 and the drainage bag 19 after being installed are constant and constant in the drainage process, so that the weight change sensed by the weighing sensor 17 is completely caused by the increase of the effusion in the drainage bag 19, so that the controller can calculate the effusion weight actually drained in unit time, that is, the real-time drainage speed, and can calculate the accumulated weight increase of the effusion in the drainage bag 19 during the period from the beginning of drainage to the present, that is, the single real-time drainage quantity, therefore, the technical requirement that the controller can calculate the real-time drainage speed and the single real-time drainage quantity based on the weight signal continuously fed back by the weighing sensor 17 in real time can be realized by adopting the prior art;

based on the working principle adopted by the multifunctional medical drainage control device, the output of two adjacent hydrops has a certain time interval in the drainage process, namely the hydrops flows in a pulse mode, so that the unit time based on which the controller calculates and obtains the data of the real-time drainage speed is not too short, and the controller is better to be capable of generating at least two fluid outputs in one unit time; in addition, although the effusion is pulsed in the drainage process, the effusion generally does not bring discomfort to the patient, and the pulse feeling generated in the drainage process can be reduced by additionally arranging a buffer container on the drainage tube 18.

Referring to fig. 8, 9 and 10, when the multifunctional medical drainage control device is used clinically, the drainage bag 19 is fixedly connected with the tail end of the drainage tube 18 in the drainage process, the drainage tube 18 inevitably generates a certain acting force on the drainage bag 19, the acting force may change along with the deformation of the drainage bag 19, and the force and the change of the force are inevitably picked up by the weighing sensor 17 and fed back to the controller, so that certain influence is caused on the data accuracy of the real-time drainage speed and the single real-time drainage quantity; however, in the multifunctional medical drainage control device, before clinical drainage is implemented, the height of the drainage bag 19 can be adjusted through the weight-measuring type suspension support assembly 3, so that the part of the drainage tube 18, which is positioned between the drainage groove 4 and the drainage bag 19, is in a natural extension state, the acting force of the lower end of the drainage tube 18 on the drainage bag 19 can be reduced, the acting force between the drainage tube 18 and the drainage bag 19 tends to be constant, and the influence of the factors on the data accuracy of real-time drainage speed and single real-time drainage quantity is reduced to the maximum extent.

Referring to fig. 8, 9 and 10, in the above-mentioned multifunctional medical drainage control device, the weighing sensor 17 can pick up the change state of the weight of the accumulated liquid in the drainage bag 19, and output a weight signal based on the change state to provide a data base for the controller to calculate parameters such as real-time drainage speed, single real-time drainage quantity and the like, and thus, the accuracy of the weight signal output by the weighing sensor 17 is a key factor influencing whether the multifunctional medical drainage control device can accurately control the drainage process; the weight metering function part in the weight metering type suspension support component 3 can be regarded as a conventional weight metering mechanism, as is well known, the weight metering mechanism can stably and accurately work only in a specific direction, namely, the accuracy of a weight signal output by the weighing sensor 17 can be ensured only when the multifunctional medical drainage control device is horizontally placed, otherwise, the gravity generated by accumulated liquid in the drainage bag 19 is decomposed, and the weight signal output by the weighing sensor 17 is inaccurate; generally speaking, with the gradual improvement of ward conditions of medical units, the ground in the ward is smoother and tends to be horizontal, so when the multifunctional medical drainage control device is placed on the ground of the ward for use, the technical requirement of horizontal placement can be met, and the weight signal output by the weighing sensor 17 can be ensured to be more accurate;

step by step, even if the ground in the ward does not meet the requirement of tending to the level, the multifunctional medical drainage control device can be adjusted in a manner of arranging articles below the base 1 in a cushioning manner, so that the multifunctional medical drainage control device is horizontally arranged, and the accuracy of the weight signal output by the retransmission sensor in the clinical drainage process is ensured.

Referring to fig. 5-7, in the above-mentioned multifunctional medical drainage control device, the longitudinal pressing block 5 is driven by the first electric feeding mechanism 14, and the controller can adjust the position of the longitudinal pressing block 5 based on the control of the working state of the first electric feeding mechanism 14, that is, the controller can make the longitudinal pressing block 5 perform different modes of pressing on the inlet end and the outlet end of the drainage tube 18 in the opposite tube gap, and can make the longitudinal pressing block 5 move to the initial position; it is not difficult to implement the above technical features by using the prior art in the electromechanical field, and in this embodiment, the above technical features are preferably implemented by using the following structure:

as shown in fig. 12, the bottom of the recess 8 is provided with a guide groove a24, and the longitudinal pressing block 5 is fixedly connected with a guide block a27 which can only slide back and forth along the guide groove a 24; the first electric feeding mechanism 14 comprises a first servo motor 26 fixed in the mounting plate 6, an output shaft of the first servo motor 26 is coaxially connected with a screw rod A28, a screw hole is formed in a guide block A27, and the guide block A27 and the screw rod A28 form a screw rod pair; the first servo motor 26 drives the screw rod A28 to rotate in different directions, so that the position of the longitudinal pressing block 5 can be adjusted, and the start, stop, rotation direction and rotation angle of the operation of the first servo motor 26 are controlled by the controller; therefore, the controller can realize the adjustment of the position of the longitudinal pressing block 5 by controlling the working state of the first servo motor 26.

Referring to fig. 5-7, in the above-mentioned multifunctional medical drainage control device, the two transverse pressing blocks 9 are driven by the second electric feeding mechanism 15 together to be moved away and close, and the controller can adjust the positions of the two transverse pressing blocks 9 based on the control of the working state of the second electric feeding mechanism 15, that is, the controller can move the two transverse pressing blocks 9 away to simultaneously and respectively squeeze the drainage tube 18 in the measuring and placing tube gap, and can move the two transverse pressing blocks 9 close to and simultaneously reset to the initial position; it is not difficult to implement the above technical features by using the prior art in the electromechanical field, and in this embodiment, the above technical features are preferably implemented by using the following structure:

as shown in fig. 12 and 13, a guide groove B25 is formed at the bottom of the recess 8, and the two lateral pressing blocks 9 are fixedly connected with a guide block B29 which can only slide back and forth along the guide groove B25; the second electric feeding mechanism 15 comprises a second servo motor 31 fixed in the setting plate 6, an output shaft of the second servo motor 31 is coaxially connected with a lead screw B30, the lead screw B30 is a bidirectional lead screw, namely, a left-handed thread section 32 and a right-handed thread section 33 are arranged on a rod body, a screw hole is formed in one guide block B29 and forms a lead screw pair with the left-handed thread section 32, and a screw hole is formed in the other guide block B29 and forms a lead screw pair with the right-handed thread section 33; the second servo motor 31 drives the screw rod B30 to rotate in different directions, and can respectively drive the two guide blocks B29 to move away from and close to each other, so that the two transverse pressing blocks 9 can simultaneously and respectively extrude the drainage tube 18 in the gap between the two placed tubes and can also simultaneously reset to the initial position; the start, stop, rotation direction and rotation angle of the second servo motor 31 are controlled by a controller; therefore, the controller can adjust the positions of the two transverse pressing blocks 9 by controlling the working state of the second servo motor 31, reasonably debug the matching parameters of the screw rod B30 and the two guide blocks B29, and easily realize the technical requirements that the two transverse pressing blocks 9 are far away from the drainage tube 18 which can be simultaneously and respectively extruded in the two tube placing gaps, and the two transverse pressing blocks 9 are close to the drainage tube and can be simultaneously reset to the initial positions.

The multifunctional medical drainage control device 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 full-automatic drainage control is fulfilled, the labor burden is saved, and the safety, stability and accuracy of the drainage operation are improved; the multifunctional medical drainage control device is matched with the conventional drainage bag 19 and the drainage tube 18 for use, and the existing structures of the drainage bag 19 and the drainage tube 18 are not required to be changed, so that the multifunctional medical drainage control device is easier to popularize and use; the multifunctional medical drainage control device has two working modes of normal-pressure drainage and negative-pressure drainage, can meet different drainage operation requirements of pleural effusion drainage, abdominal effusion drainage and the like, and has stronger applicability and wider application range; meanwhile, the multifunctional medical drainage control device has the advantages of small volume, convenient movement, convenient carrying, small occupied space, high flexibility and great clinical popularization value.

Example 2

Referring to fig. 8 and 9, in the multi-functional medical drainage control device disclosed in example 1, it has been clarified that the accuracy of the weighing signal output by the weighing sensor 17 is greatly affected by whether the multi-functional medical drainage control device is horizontally placed; if meet ground levelness when relatively poor, though the mode of laying up article in base 1 below is solved, nevertheless the operation is got up comparatively trouble, wastes time and energy, for this reason, this embodiment still has following improvement on the structure basis of the multi-functional medical drainage controlling means that the embodiment disclosed:

as shown in fig. 14 and 15, a first rotating shaft 36 extending horizontally and backwardly is fixed at the rear side of the installation plate 6, and a swing seat 35 is fixed through the first rotating shaft 36 and can swing left and right with a small amplitude; the upper end of the weight-measuring suspension support component 3 is connected with the swinging seat 35 through the second rotating shaft 34, so that the weight-measuring suspension support component 3 can swing back and forth in a small range; the first rotating shaft 36 and the second rotating shaft 34 are perpendicular to each other; when the drainage bag 19 is fixed by the hanging part 13, the weight-measuring type suspension support component 3 is driven by gravity to always maintain a specific direction, and the weight change state of the accumulated liquid in the drainage bag 19 can be accurately picked up by the weight sensor 17 in the specific direction;

when the multifunctional medical drainage control device is improved in structure, the weight-measuring suspension support component 3 has an automatic direction adjusting mechanism, even if the multifunctional medical drainage control device is not horizontally arranged in clinical use, the weight-measuring suspension support component 3 can be automatically adjusted to and maintained in a specific direction through left-right swinging and front-back swinging, so that the weighing sensor 17 can work stably and accurately;

in the improved structure, the swing seat 35 can swing left and right with small amplitude, the weight-measuring suspension component 3 can swing front and back with small amplitude, and the front and back swing and the left and right swing are both small amplitude, which is intended to limit the change of the relative position of the mounting plate 6 and the weight-measuring suspension component 3 within a small range, and avoid the inconvenience for the mounting, carrying and other operations of the multifunctional medical drainage control device caused by the unstable relative position of the mounting plate 6 and the weight-measuring suspension component 3; the specific swing angle range of the small amplitude has no accurate requirement, and the aim is to ensure that the multifunctional medical drainage control device can stably and accurately work under most ground conditions;

meanwhile, the technical requirements that the weight-measuring suspension support assembly 3 and the swinging seat 35 can only swing back and forth and swing left and right within a small amplitude range are met, and the technical requirements can be easily met by arranging corresponding angle limiting mechanisms 37 between the weight-measuring suspension support assembly 3 and the swinging seat 35 and between the swinging seat 35 and the mounting plate 6;

for the technical requirement that the weight-measuring type suspension support component 3 can be automatically adjusted to and maintained in a specific direction under the drive of gravity, when the multifunctional medical drainage control device is manufactured, the specific structural form of the weight-measuring type suspension support component 3 is debugged, and a standard operation mode is set for the connection mode of the suspension part 13 and the drainage bag 19, so that the technical requirement is realized without difficulty; the specific direction refers to that the gravity generated by the accumulated liquid in the drainage bag 19 tends to be totally fed back to the weighing sensor 17 under the direction of the weight-measuring type suspension support assembly 3, so that the weighing sensor 17 can accurately pick up the weight change state of the accumulated liquid in the drainage bag 19.

Example 3

Referring to fig. 1 and 8, drainage is a medical means which is commonly used in clinical practice at present, the clinical drainage process is mostly performed in a ward, and the multifunctional medical drainage control device needs to be frequently moved back and forth between wards and instrument rooms; when the multifunctional medical drainage control device is clinically used, the whole device can be stably supported by the base 1, the base 1 is necessarily large and heavy, the multifunctional medical drainage control device is difficult to move integrally and is influenced by the base 1, the integral volume of the multifunctional medical drainage control device is large, the occupied space is large when the multifunctional medical drainage control device is used, and the flexibility is poor;

generally speaking, the infusion support is a necessary medical device in a ward, the structure is relatively simple, the occupied space is small, and if the multifunctional medical drainage control device can be used with the infusion support after removing a heavy base 1 part, a great deal of convenience is brought to clinical drainage operation; based on the above reasons, the present embodiment has further improvements to the clinical drainage control device disclosed in the foregoing embodiments, and the specific implementation structure is as follows:

as shown in fig. 16 and 17, the multifunctional medical drainage control device further comprises a clamping member 39 which can be clamped and fixed on the infusion rod 43 of the infusion support; a combined seat 42 is arranged at the rear side of the placing plate 6, and the combined seat 42 is connected with the upper end of the upright post 2 in a detachable way; an assembling mechanism is arranged between the clamping member 39 and the combined seat 42, and when the clamping member 39 is connected with the combined seat 42, the multifunctional medical drainage control device can be supported by the infusion rod 43 to work; the combined seat 42 and the upright post 2 can adopt a splicing structure to realize the technical purpose of disassembly and assembly, and the disassembly and assembly operation is more convenient;

from this one, in clinical use, multi-functional medical drainage controlling means can not rely on base 1 to provide the support, and can cooperate the infusion support that the ward all possessed usually to carry out work for multi-functional medical drainage controlling means's removal is more convenient, uses more in a flexible way, and the operation is more convenient.

In the above improved structure, the fastening member 39 and the combination seat 42 can be connected by means of the assembling mechanism, in order to ensure that the fastening member 39 can provide sufficient and stable support for the multifunctional medical drainage control device, as for the prior art, the assembling mechanism has various embodiments, but in order to ensure the stability and the convenience of disassembling and assembling after the fastening member 39 and the combination seat 42 are combined, the assembling mechanism preferably adopts the following design, and the specific structure is as follows:

as shown in fig. 16 and 17, the assembling mechanism comprises a T-shaped groove 41 disposed on one side of the combining seat 42 and a T-shaped rib 40 disposed on the clamping member 39, the T-shaped groove 41 extends vertically, the upper end is a blind end, the lower end is an open end, the T-shaped rib 40 and the T-shaped groove 41 can be combined, and the damping pad 38 for clamping the T-shaped groove 41 is disposed at the lower end of the T-shaped rib 40;

based on the above structure adopted by the assembling mechanism, the T-shaped rib 40 of the clamping member 39 is inserted into the T-shaped groove 41 of the combined base 42 from bottom to top, so that the assembling of the combined base 42 and the clamping member 39 is completed, otherwise, the combined base 42 and the clamping member 39 can be separated; when the T-shaped rib 40 and the T-shaped groove 41 are completely combined, the damping pad 38 tightly clamps the T-shaped groove 41 to lock the relative position of the T-shaped rib 40 and the T-shaped groove 41, thereby preventing the clamping member 39 from being separated from the combination base 42.

Referring to fig. 17, in the above improved structure, the clamping member 39 is used for clamping and matching with the infusion rod 43 to provide a stable support for the multifunctional medical drainage control device, and as far as the prior art is concerned, the clamping member 39 has various embodiments, for example, a clamping mechanism for clamping the infusion rod 43 may be arranged on the clamping member 39, or a C-shaped clamp may be arranged on the clamping member 39, and fastening screws are additionally arranged on the clamping mechanism and the C-shaped clamp, and an anti-slip gasket is additionally arranged on a contact surface with the infusion rod 43 to improve the stability after the clamping member 39 and the infusion rod 43 are combined; although the clamping piece 39 with the structure can meet the basic technical requirement of providing support for the multifunctional medical drainage control device, the clamping piece has the defects of not simple structure, not beautiful appearance, troublesome use and the like; meanwhile, generally speaking, the types of infusion supports used by the same medical institution are mostly the same, that is, the diameters of the infusion rods 43 are the same, but no exception exists, and the implementation structure adopted by the clamping member 39 is difficult to be compatible with the infusion rods 43 with different sizes for use, and certain limitation is certainly formed in clinical use; therefore, the present embodiment also provides a novel implementation manner for the clamping member 39, and the specific structure is as follows:

as shown in fig. 18 and 19, a clamping opening 50 for accommodating the transfusion rod 43 is formed in one side of the clamping member 39, two opposite side walls of the clamping opening 50 are respectively provided with a limiting seat 44, a floating holding block 45 is respectively arranged in the limiting seat 44, opposite end portions of the two floating holding blocks 45 are arc-shaped ends 49, end surfaces of the two arc-shaped ends 49 are both arc-shaped and are respectively fixed with an anti-skid rubber pad 46, and the two arc-shaped ends 49 are respectively used for holding two sides of the transfusion rod 43; the floating holding block 45 and the limiting seat 44 are matched through a guide mechanism formed by the sliding groove 47 and the sliding block 48, so that the floating holding block 45 has an oblique floating stroke, when the two floating holding blocks 45 move upwards along respective floating strokes simultaneously, the two arc-shaped ends 49 gradually approach and enter the clamping opening 50, and when the two floating holding blocks 45 move downwards along respective floating strokes simultaneously, the two arc-shaped ends 49 gradually separate and finally retract into the corresponding limiting seats 44; the two limiting seats 44 are respectively provided with a reset spring 51 which drives the corresponding floating holding block 45 to reset to the uppermost end of the floating stroke;

as shown in fig. 19, after the clamping member 39 adopts the above structure, the clamping port 50 of the clamping member 39 is clamped outside the infusion rod 43, the two floating clasping blocks 45 can clamp and clasp the infusion rod 43 from two opposite sides of the infusion rod 43, the weight of the multifunctional medical drainage control device can generate a downward acting force on the clamping member 39, and the two floating clasping blocks 45 respectively receive horizontal component forces to further clasp the infusion rod 43, in short, the larger the weight borne by the clamping member 39 is, the firmer the two floating clasping blocks 45 clasp the infusion rod 43 is, so that the clamping member 39 and the infusion rod 43 can be prevented from moving relative to each other, and the stability after the clamping member 39 and the infusion rod 43 are combined can be improved;

meanwhile, because the two floating holding blocks 45 have certain floating travel, the distance between the two floating holding blocks can be automatically adjusted according to the different diameters of the transfusion rods 43, the applicability of the clamping piece 39 is improved to a certain extent, and the clamping piece can be matched with various transfusion rods 43 with different diameters for use.

Example 4

Referring to fig. 5-7, in the clinical drainage process, the multifunctional medical drainage control device realizes the adjustment and control of the drainage state by extruding the drainage tube 18 in the gap between the upper movable pressing block, the middle movable pressing block and the lower movable pressing block in different ways, so that the drainage tube 18 in the gap between the upper movable pressing block and the lower movable pressing block can be stably matched with the drainage adjusting component, which is a necessary condition for ensuring the stable operation of the multifunctional medical drainage control device; in the multifunctional medical drainage control device disclosed in the foregoing embodiment, in order to facilitate the combination and separation of the drainage tube 18 and the drainage regulating assembly, the introduction groove 7, the extraction groove 4 and the front side of the tube placing gap are all open, and there is a risk that the drainage tube 18 slips from the front side of the tube placing gap in the drainage process, so as to reduce the stability of the operation of the multifunctional medical drainage control device, and in order to solve the above problems, the present embodiment has a further improvement on the multifunctional medical drainage control device:

as shown in fig. 20 and 21, a cover plate 55 is disposed on the front side of the installation plate 6, the inner end of the cover plate 55 is rotatably connected to the installation plate 6 through a hinge shaft 53, two pressing blocks 54 are disposed on one side wall of the cover plate 55, and the cover plate 55 has two station states and can be switched between the two station states by turning over; when the cover plate 55 is turned over to a station state, the cover plate covers the front sides of the tube placing gap, the upper movable pressing block, the middle movable pressing block and the lower movable pressing block, and the two pressing and holding blocks 54 are respectively pressed into the leading-in groove 7 and the leading-out groove 4 to firmly clamp and fix the drainage tube 18; when the cover plate 55 is turned over to another station state, it covers the front sides of the display screen 12 and the setting keys 11; a locking mechanism 52 which can lock the cover plate 55 at two stations respectively is arranged between the cover plate 55 and the setting plate 6;

therefore, as shown in fig. 20, in the drainage process, the front side opening of the tube placing gap can be plugged by the cover plate 55, and the drainage tubes 18 introduced into the groove 7 and the lead-out groove 4 are respectively pressed by the two pressing blocks 54, so that the drainage tubes 18 can be prevented from slipping from the tube placing gap in the drainage process, the working stability of the multifunctional medical drainage control device is improved, meanwhile, the cover plate 55 can also prevent external foreign matters from entering the tube placing gap in the drainage process, and the working accuracy of the multifunctional medical drainage control device is improved; as shown in fig. 21, when drainage is not performed, the cover plate 55 can provide a better protection function for the display screen 12 and the setting key 11, so as to prevent the display screen 12 and the setting key 11 from being damaged by vulnerable electronic components of the multifunctional medical drainage control device during moving and idling.

Referring to fig. 20 and 21, in the above improved structure, a locking mechanism 52 is provided between the cover plate 55 and the setting plate 6, and the locking mechanism 52 is used for locking and maintaining the cover plate 55 in a two-station state, that is, when the cover plate 55 is in a one-station state, the relative position of the cover plate 55 and the setting plate 6 can be locked by the locking mechanism 52, so that the cover plate 55 is maintained in the station state, and the corresponding function is exerted; based on this, as for the prior art, the locking mechanism 52 has various embodiments to satisfy the basic functions expected for the locking mechanism, but if the prior art is adopted for implementation, the above-mentioned embodiments have certain disadvantages, or the operation is not convenient enough, and the locking and unlocking are required to be performed manually, or the locking failure is easy to occur, or the mating member is complex, the service life is short, and so on, for this reason, a novel locking mechanism 52 is further provided in the present embodiment, and the specific implementation structure thereof is as follows:

as shown in fig. 22, the locking mechanism 52 includes a tongue 59 movably limited on the cover plate 55 and two locking magnetic sheets 56 mounted on the mounting plate 6, a strong magnet 58 is mounted on the tongue 59, when the tongue 59 is in a reset state, the outer end of the tongue 59 is exposed outside the outer end of the cover plate 55, and a spring 57 for driving the tongue 59 to automatically reset is provided in the mounting plate 6; when the tongue piece 59 is in a reset state and the cover plate 55 is in a working position state, the strong magnet 58 is positioned right above the corresponding locking magnet piece 56, and at the moment, the strong magnet 58 and the locking magnet piece 56 lock the relative position of the cover plate 55 and the setting plate 6 through adsorption force; when the cover plate 55 is in a working position state, the manual pushing tongue piece 59 moves inwards, so that the strong magnetic block 58 can be staggered with the corresponding locking magnetic sheet 56, the locking effect is relieved, and the cover plate 55 can be turned over;

after the locking mechanism 52 adopts the above structure and the cover plate 55 is adjusted to a station state, the strong magnetic block 58 and the corresponding locking magnetic sheet 56 lock the cover plate 55 through a large adsorption force, so that the cover plate 55 can perform an expected function, although the strong magnetic block 58 and the locking magnetic sheet 56 have a large adsorption force when keeping the opposite direction, the shearing resistance is poor, therefore, when the station of the cover plate 55 needs to be adjusted, the tongue piece 59 can be easily pushed to move inwards, and then the strong magnetic block 58 and the corresponding locking magnetic sheet 56 are staggered, and the adsorption force between the two is greatly reduced, so that the cover plate 55 can be easily turned over to adjust the station state; the locking mechanism 52 has the advantages of ingenious structural design, stable work, easy implementation and no jamming fault, and overcomes the defects of the prior similar technology.

Example 5

When the multifunctional medical drainage control device disclosed in the foregoing publication is used for negative pressure drainage, in the process that the longitudinal pressing block 5 moves from the leading-out end to the leading-in end, there is a unblocked period that the leading-in end, the leading-out end and the drainage tube 18 between the leading-in end and the leading-out end are all in a conducting state, but most of the existing commonly used drainage components have a one-way valve mechanism for preventing fluid from flowing back, so that the fluid can be prevented from flowing back in the unblocked period; however, the exceptional situation is not lacked, when negative pressure drainage is carried out and the drainage assembly does not have the function of preventing backflow of fluid, backflow of fluid in the unblocked period is avoided by adding the one-way valve mechanism, and stable operation of negative pressure drainage can be guaranteed.

In the prior art, a one-way valve mechanism is a device which is commonly used in the field of fluid delivery, but has the problems that the current one-way valve mechanism is mostly reset to a cut-off state through an elastic part, so that the conduction of the one-way valve mechanism requires that internal fluid reaches higher pressure, although the technical requirement of a multifunctional medical drainage control device for negative pressure drainage can be met, certain resistance to effusion flow is not avoided, and the one-way valve mechanism with lower working pressure can be used for normal pressure drainage, but the adjustable range of drainage speed in normal pressure drainage is reduced; based on this, the disclosed multi-functional medical drainage controlling means of this embodiment still includes an one-way output joint, and this one-way output joint design science is installed between drainage tube and drainage bag, can guarantee going on that negative pressure drainage and ordinary pressure drainage homoenergetic are stable, and its concrete implementation structure is:

the one-way output connector comprises a main body 62, the upper end of the main body 62 is provided with an input port 65 connected with the lower end of the drainage tube, and the lower end is provided with an output port 60 connected with the drainage bag; a column cavity 64 is formed in the main body 62, a liquid inlet hole 61 is formed in the bottom of the column cavity 64, a liquid discharging hole 67 is formed in the side wall of the middle lower part, and a vent hole 66 communicated with the atmosphere is formed in the upper end of the column cavity; the inlet 65 is communicated with the liquid inlet hole 61 through a flow channel, and the liquid outlet hole 67 is communicated with the outlet 60 through a flow channel; a floating ball 63 with a smooth surface is arranged in the valve cavity, a gap is formed between the floating ball 63 and the side wall of the column cavity 64, so that the liquid discharge hole 67 is always communicated with the vent hole 66, and the floating ball 63 sinks to the bottom of the column cavity 64 and then can be in sealing fit with the liquid inlet hole 61; when liquid accumulation exists in the column cavity 64, the floating ball 63 floats on the upper surface of the liquid accumulation in the column cavity 64 to enable the liquid inlet hole 61, the liquid outlet hole 67 and the vent hole 66 to be communicated, and when the liquid accumulation does not exist in the column cavity 64, the floating ball 63 sinks by gravity to block the liquid inlet hole 61;

(1) as shown in fig. 23 and 24, when fluid is output and the fluid is accumulated, the accumulated fluid pushes the floating ball 63 upward and enters the column cavity 64 through the liquid inlet hole 61, the floating ball 63 rises with the increase of the accumulated fluid in the column cavity 64, the accumulated fluid in the column cavity 64 is discharged through the liquid discharge hole 67 and finally flows into the drainage bag, and the accumulated fluid does not overflow through the air hole 66 because the air hole 66 is higher than the liquid discharge hole 67; after the primary fluid output is finished, the accumulated liquid in the valve cavity can continuously flow into the drainage bag because the drain hole 67 is communicated with the vent hole 66, the floating ball 63 sinks along with the decrease of the accumulated liquid in the column cavity 64, and if the accumulated liquid in the drainage tube flows back, the accumulated liquid in the column cavity 64 disappears, so that the floating ball 63 sinks to the bottom of the column cavity 64 to block the liquid inlet hole 61, and the accumulated liquid in the drainage tube is prevented from flowing back;

(2) when fluid is output and air is used as fluid, the air pushes the floating ball 63 to rise and enter the column cavity 64 through the liquid inlet hole 61, then continuously flows upwards through a gap between the floating ball 63 and the column cavity 64, and is finally discharged to the outside, if the drainage bag is provided with an exhaust pipeline, part of air in the column cavity 64 is also discharged into the drainage bag through the liquid discharge hole 67, and is finally discharged to the outside through the exhaust pipeline of the drainage bag; after the primary fluid output is finished, the floating ball 63 sinks to the bottom of the column cavity 64 by means of self-weight to block the liquid inlet hole 61, so that air in the drainage tube is prevented from flowing back;

after the unidirectional output joint 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, as the floating ball 63 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, the adjustable range of the drainage speed can be furthest improved in the normal-pressure drainage;

meanwhile, the one-way output joint is reset to the cut-off state based on the gravity of the floating ball 63, and the reset force is not required to be provided by means of an additional elastic piece, so that the structure is simple, the working stability of the one-way output joint is ensured, and the service life is prolonged.

Claims

1. A multi-functional medical drainage controlling means which characterized in that, it includes:

2. The multi-functional medical drainage control device of claim 1, wherein: in the normal pressure drainage process, the controller is based on real-time drainage speed, single real-time drainage volume and the specific regulation and control mode of preset drainage parameters to the drainage regulating component operating condition and is:

A. when the primary drainage is performed, firstly, the controller regulates and controls the working state of the drainage regulating assembly to promote the drainage tube to alternately and circularly output and suck fluid, when the weighing sensor senses weight change, the controller enables the two transverse pressing blocks to be regulated to the initial positions and regulates the position of the longitudinal pressing block to enable the leading-in end and the leading-out end of the drainage tube in the tube placing gap to be kept in a conducting state, and at the moment, the primary drainage is started, and normal-pressure drainage can be normally performed by means of siphon effect; in each drainage thereafter, the controller adjusts the position of the longitudinal pressing block according to the preset initial time of each drainage, so that the drainage tube is in a conducting state, namely, the timed drainage is realized;

B. in the drainage process, the controller adjusts the extrusion degree of the introduction end of the drainage tube in the gap between the longitudinal pressing block and the opposite tube according to the real-time drainage speed, so that the effusion speed in the drainage tube is increased or reduced, and finally the real-time drainage speed is approximately equal to the preset drainage speed, namely the constant-speed drainage is realized;

C. in the drainage process, the controller calculates the single real-time drainage volume that this drainage is originated to reaching at present in real time, and when the single real-time drainage volume reached preset single drainage volume, the position of vertical briquetting was adjusted to the controller, makes vertical briquetting will put the introduction end extrusion of drainage tube to the state of blocking in the tub clearance, and this time drainage finishes this moment, realizes the ration drainage promptly.

3. The multi-functional medical drainage control device of claim 1, wherein: in the negative pressure drainage process, the controller is based on real-time drainage speed, single real-time drainage volume and the specific regulation and control mode of preset drainage parameters to the drainage regulating component operating condition and is:

A. according to the preset drainage starting time, the controller regulates and controls the working state of the drainage regulating component, so that the drainage tube alternately and circularly outputs and sucks fluid, and the fluid in the drainage tube flows towards the drainage bag, namely the timing drainage is realized;

C. in the drainage process, the controller calculates the single real-time drainage volume of this time of drainage initiation to reaching at present in real time, and after the single real-time drainage volume reached preset single drainage volume, the position of vertical briquetting will be adjusted to the controller, makes vertical briquetting will put the leading-out end extrusion of drainage tube to the state of blocking in the tub clearance, then adjusts two horizontal briquetting to initial position, this time drainage end and drainage tube this moment by vertical briquetting extrusion and keep the off-state, realize quantitative drainage promptly.