CN109331248B

CN109331248B - Multipurpose clinical drainage device

Info

Publication number: CN109331248B
Application number: CN201811135055.8A
Authority: CN
Inventors: 任翊华; 司兆明; 韩宁宁; 王才丰
Original assignee: Individual
Current assignee: Ren Yihua
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2021-08-17
Anticipated expiration: 2038-09-28
Also published as: CN109731159A; CN109731158A; CN109731156A; CN109731155A; CN109331248A; CN109731157A

Abstract

The invention relates to the field of medical equipment, and discloses a multipurpose clinical drainage device which comprises 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-purpose clinical drainage device 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

Multipurpose clinical drainage device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a multipurpose clinical drainage 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 multipurpose clinical drainage 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 starting time, single drainage quantity, single drainage speed and other drainage parameters.

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

a multi-purpose clinical drainage 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 assembly is arranged on the mounting plate and comprises an introducing groove, a fixed pressing block, an upper movable pressing block, a middle movable pressing block, a lower movable pressing block and a leading-out groove; the upper movable pressing block, the middle movable pressing block and the lower movable pressing block are all positioned at the same side of the fixed pressing block, and a tube placing gap which extends up and down and is used for containing the drainage tube is formed between the upper movable pressing block, the middle movable pressing block and the lower movable pressing block; the introducing groove and the leading-out groove are both arranged on the placing plate and are used for clamping and fixing the drainage tube and guiding the drainage tube to pass through the tube placing gap; the upper movable pressing block, the middle movable pressing block and the lower movable pressing block are respectively connected with an electric feeding mechanism so as to move positions in respective movable strokes, when the upper movable pressing block, the middle movable pressing block and the lower movable pressing block are positioned at the starting ends of the respective strokes, the three blocks are not opposite to the drainage tube in the tube gap to cause extrusion, when the three blocks move to the stroke terminal, the extrusion degree of the corresponding part of the drainage tube is enhanced, and when the three blocks are respectively positioned at the terminal ends of the respective movable strokes, the corresponding part of the drainage tube is extruded to a blocking state;

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 upper movable pressing block, the middle movable pressing block and the lower movable pressing block based on the regulation and control of the working states of the three electric feeding mechanisms; in a negative pressure drainage mode, a controller firstly adjusts an upper movable pressing block to a stroke terminal in sequence, keeps a lower movable pressing block at a stroke initial end, adjusts a middle movable pressing block to the stroke terminal, namely finishes primary fluid output, then sequentially adjusts the lower movable pressing block to the stroke terminal, adjusts the upper movable pressing block to the stroke initial end, adjusts a middle movable pressing block to the stroke initial end, finishes primary fluid suction when a drainage tube flattened by the middle movable pressing block is restored, and alternately circulates the fluid output and the fluid suction to realize negative pressure drainage, and regulates and controls the operation state of the fluid output and the fluid suction based on a real-time drainage speed, a single real-time drainage amount and preset drainage parameters to realize timing drainage, constant-speed drainage and quantitative drainage; 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 drainage tube in the gap between the upper movable pressing block and the opposite tube 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 receiving a shutdown instruction, the controller firstly adjusts the upper movable pressing block, the middle movable pressing block and the lower movable pressing block to the respective stroke starting ends 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 elements in the weighing type suspension support assembly, the drainage adjusting assembly and the controller.

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

the multipurpose clinical drainage device is placed on the ground or a platform, the upper end of a drainage bag is fixed on a suspension part, so that the drainage bag is suspended above a base, and if normal-pressure drainage is carried out, the drainage bag is required to be lower than a drainage source; fixing the middle-lower section of the drainage tube through an introducing groove and an extracting groove and ensuring that the drainage tube passes through a tube placing gap, connecting the lower end of the drainage tube with a drainage bag, adjusting the height of the drainage bag through a hanging part to enable the part of the drainage tube between the extracting groove and the drainage bag to be in a natural extension state, communicating and fixing the front end of the drainage tube with a chamber to be drained of a patient according to conventional drainage operation, adjusting a multipurpose clinical drainage device to a starting state through a set key, presetting a drainage mode and drainage parameters in a controller according to clinical requirements by using the set key, and finishing the early preparation work of the drainage operation; then, in a negative pressure drainage mode, the controller regulates and controls the working state of the drainage regulating assembly, so that the upper movable pressing block, the middle movable pressing block and the lower movable pressing block change stations according to a preset rule, corresponding extrusion is applied to the drainage tube, the drainage tube alternately outputs and sucks fluid, the accumulated fluid in the drainage tube is enabled to continuously flow backwards, the accumulated fluid is forced to flow into a drainage bag by a human body, and negative pressure drainage is realized; in the ordinary 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 last activity briquetting, and the extrusion degree of drainage tube in the indirect regulation contrary position pipe gap of activity briquetting promptly can realize regularly drainage, constant speed drainage and quantitative drainage automatically.

This multi-purpose clinical drainage device has following beneficial effect:

the multipurpose clinical drainage 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, each drainage speed and the like, realizes automatic intelligent drainage with timing, quantification and constant speed, greatly lightens the work burden of medical personnel 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 multi-purpose clinical drainage device is used for controlling the drainage quantity and the drainage speed based on the coordination of the sensing device, the controller and the electric system, and compared with the manual observation and control in the prior art, the multi-purpose clinical drainage device is more accurate in operation and control, so that the drainage effect is further ensured; the multipurpose clinical drainage device realizes the adjustment of the drainage speed and the generation of drainage negative pressure based on the extrusion of related components in the drainage adjusting assembly to the drainage tube in different modes, ensures the sealing property of a effusion drainage pipeline, and ensures the absolute isolation of effusion from the multipurpose clinical drainage device, safety and sanitation; meanwhile, the drainage adjusting component adopts scientific and ingenious structural design, has multiple functions of controlling the on-off state of the drainage tube, 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 multipurpose clinical drainage device tends to be more compact, and the implementation cost is lower; in conclusion, the multipurpose clinical drainage 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 diagrams of the multi-purpose clinical drainage device according to example 1.

Fig. 2 is a second schematic view of the overall structure of the multi-purpose clinical drainage device in example 1.

Fig. 3 is a schematic structural view of the upper half part of the multi-purpose clinical drainage device in example 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 the clinical use state of the multi-purpose clinical drainage device in example 1.

Fig. 9 is a control schematic diagram of the multi-purpose clinical drainage device in the embodiment 1 during operation.

Fig. 10 is a schematic structural view of a weighted suspension assembly in embodiment 1.

Fig. 11 is a schematic structural view of a drainage regulating assembly in embodiment 1.

Fig. 12 is a schematic view of a connection structure of the weighted suspension assembly and the installation plate in embodiment 2.

FIG. 13 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. 14 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. 15 is a schematic view of the embodiment 3 in which the multi-purpose clinical drainage device is supported by an infusion rod.

Fig. 16 is a schematic structural diagram of a card firmware in embodiment 3 after further improvement.

FIG. 17 is a schematic view of the embodiment 3 with the clamping member further modified to be combined with the infusion rod.

Fig. 18 is a schematic view showing the cooperation between the cover plate and the placement plate in the working state of the multi-purpose clinical drainage device of embodiment 4.

Fig. 19 is a schematic view showing the cooperation between the cover plate and the placement plate in the non-operation state of the multi-purpose clinical drainage device of embodiment 4.

FIG. 20 is a schematic view showing the locking mechanism, the cover plate and the mounting plate according to embodiment 4.

In the figure, 1, a base, 2, a stand column, 3, a hanging part, 4, a weight-measuring type suspension support assembly, 5, an extraction groove, 6, a placing plate, 7, a lower movable pressing block, 8, a fixed pressing block, 9, an electric feeding mechanism, 10, a middle movable pressing block, 11, an upper movable pressing block, 12, an introduction groove, 13, a display screen, 14, a controller, 15, a setting key, 16, a weighing sensor, 17, a power supply assembly, 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, 25, a guide block, 26, a screw rod, 27, a servo motor, 28, a second rotating shaft, 29, a swinging seat, 30, a first rotating shaft, 31, an angle limiting mechanism, 32, a damping pad, 33, a clamping piece, 34, a T-shaped rib, 35, a T-shaped groove, 36, a combined seat, 37, an infusion rod, 38, a floating holding block, 39, an anti-skid rubber pad, 40, The locking device comprises a sliding groove 41, a sliding block 42, an arc-shaped end 43, a clamping opening 44, a limiting seat 45, a return spring 46, a cover plate 47, a rotating shaft 48, a locking mechanism 49, a pressing and holding block 50, a locking magnetic sheet 51, an elastic sheet 52, a strong magnetic block 53 and a tongue piece.

Detailed Description

Example 1

Referring to fig. 1 and 2, the multi-purpose clinical drainage device disclosed in this embodiment mainly comprises five major parts, namely a support assembly, a weight-measuring suspension assembly 4, a drainage adjustment assembly, a controller 14 and a power supply assembly 17;

referring to fig. 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 in the vertical direction, and the setting plate 6 is supported by the column 2 and is located above the base 1 and 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. 1 and 2, the weight-measuring suspension assembly 4 is supported by a mounting plate 6, a weighing sensor 16 is arranged in the weight-measuring suspension assembly, and a suspension part 3 is arranged at the lower end of the weight-measuring suspension assembly; the drainage bag 19 is used for providing unique support for the drainage bag 19, the drainage bag 19 is suspended below the placing plate 6, the height of the drainage bag 19 can be adjusted, and the weighing sensor 16 outputs a weight signal capable of reflecting the weight change state of accumulated liquid in the drainage bag 19;

referring to fig. 1, 3 and 4, the drainage regulating assembly is arranged on the installation plate 6 and comprises an introduction groove 12, a fixed pressing block 8, an upper movable pressing block 11, a middle movable pressing block 10, a lower movable pressing block 7 and an extraction groove 5; the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 are all positioned at the same side of the fixed pressing block 8, and a tube placing gap which extends up and down and is used for containing the drainage tube 18 is formed between the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 8; the introducing groove 12 and the leading-out groove 5 are both arranged on the placing plate 6 and are used for clamping and fixing the drainage tube 18 and guiding the drainage tube 18 to pass through the tube placing gap; the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 are respectively connected with an electric feeding mechanism 9 so as to be capable of moving positions in respective movable strokes, when the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 are positioned at the initial ends of the respective strokes, the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 are not used for extruding the drainage tube 18 in the tube gap, when the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 move to the terminal ends of the respective strokes, the extruding degree of the corresponding part of the drainage tube 18 is enhanced, otherwise, the extruding degree of the corresponding part of the drainage tube 18 is weakened, and when the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 are respectively positioned at the terminal ends of the respective movable strokes, the corresponding parts of the drainage tube 18 are respectively extruded to a blocking state;

referring to fig. 3 and 9, the controller 14 is fixed on the mounting plate 6, a setting key 15 and a display 13 are arranged on the front side of the controller, the setting key 15 is used for inputting a drainage mode, drainage parameters and a power-on/power-off instruction of each drainage into the controller 14, the drainage mode includes normal pressure drainage and negative pressure drainage, the drainage parameters include drainage starting time, drainage weight in unit time in the drainage process, namely drainage speed, and drainage weight in single drainage, namely single drainage amount; the controller 14 can obtain a weight signal continuously fed back by the weighing sensor 16 in real time, and calculate the real-time drainage speed and the single real-time drainage quantity according to the weight signal; the controller 14 can regulate and control the working states of the three electric feeding mechanisms 9, so that the positions of the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 in the respective movable strokes can be regulated; as shown in fig. 5 and 6, in the negative pressure drainage mode, the controller 14 firstly sequentially adjusts the upper movable pressing block 11 to the stroke end, keeps the lower movable pressing block 7 at the stroke start end, and adjusts the middle movable pressing block 10 to the stroke end, during the squeezing process of the drainage tube 18 by the middle movable pressing block 10, the fluid in the drainage tube 18 can only flow towards the drainage bag 19, so as to complete the fluid output once, then the controller 14 sequentially adjusts the lower movable pressing block 7 to the stroke end, adjusts the upper movable pressing block 11 to the stroke start end, and adjusts the middle movable pressing block 10 to the stroke start end, when the drainage tube 18 squashed by the middle movable pressing block 10 is restored, the front end of the drainage tube 18 can generate negative pressure, so as to suck the accumulated fluid in the human body into the drainage tube 18, i.e. complete the fluid suction once, the controller 14 alternately circulates the fluid output and the fluid suction, thereby realizing the negative pressure drainage, the controller 14 regulates and controls the operation states of fluid output and fluid suction start-stop, duration, working frequency and the like based on the real-time drainage speed, the single real-time drainage quantity and preset drainage parameters, 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. 7, in the normal pressure drainage mode, normal pressure drainage is realized based on the siphon effect, and the controller 14 adjusts the extrusion degree of the upper movable pressing block 11 to the drainage tube 18 in the gap between the opposite tubes based on the real-time drainage speed, the single real-time drainage amount 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 14 firstly adjusts the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 to the respective initial ends of the strokes and then performs shutdown, so that the drainage tube 18 can be smoothly separated from the tube placing gap after the drainage operation is finished, and the drainage tube 18 can be smoothly placed in the tube placing gap when the multipurpose clinical drainage device is used next time; the display screen 13 is used for displaying data information grasped in the controller 14, 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 and 9, the power supply module 17 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 components in the weight-measuring suspension assembly 4, the current-guiding adjustment assembly, and the controller 14; the structure of the power module 17 and its connection to other components are not described in detail since they are readily implemented using conventional techniques.

referring to fig. 4, 8 and 9, the multipurpose clinical drainage device is placed on the ground or a platform, the upper end of the drainage bag 19 is fixed on the hanging part 3, the drainage bag 19 is suspended above the base 1, and if normal pressure drainage is carried out, the drainage bag 19 is ensured to be lower than a drainage source; fixing the middle lower section of a drainage tube 18 with an extraction groove 5 through an introduction groove 12 and ensuring that the drainage tube 18 passes through a tube placing gap, connecting the lower end of the drainage tube 18 with a drainage bag 19, adjusting the height of the drainage bag 19 through a hanging part 3 to enable the part of the drainage tube 18 between the extraction groove 5 and the drainage bag 19 to be in a natural extension state, communicating and fixing the front end of the drainage tube 18 with a chamber to be drained of a patient according to conventional drainage operation, adjusting a multi-purpose clinical drainage device to a starting state through a setting key 15, presetting a drainage mode and drainage parameters in a controller 14 by using the setting key 15 according to clinical needs, and finishing the early preparation work of the drainage operation; thereafter, controller 14 alright based on real-time drainage speed, single real-time drainage volume and preset drainage mode and drainage parameter carries out automatic control to drainage adjusting part's operating condition, and concrete regulation and control mode is:

(1) as shown in fig. 5, 6, 7, 9, in the normal pressure drainage mode:

A. during primary drainage, firstly, the controller 14 regulates and controls the working state of the drainage regulating assembly to promote the drainage tube 18 to alternately and circularly output and suck fluid, so that the fluid in the drainage tube 18 flows backwards, when the weighing sensor 16 senses weight change, it is indicated that partial accumulated fluid enters the drainage bag 19, then the controller 14 regulates the middle movable pressing block 10 and the lower movable pressing block 7 to the initial end of the stroke, and regulates the position of the upper movable pressing block 11 to keep the drainage tube 18 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 thereafter, the controller 14 adjusts the extrusion degree of the upper movable pressing block 11 to the drainage tube 18 according to the preset initial time of each drainage, so that the drainage tube 18 is in a conduction state, namely, the timed drainage is realized;

B. in the drainage process, the controller 14 adjusts the extrusion degree of the upper movable pressing block 11 on the drainage tube 18 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 14 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 14 adjusts the extrusion degree of the upper movable pressing block 11 on the drainage tube 18, so that the upper movable pressing block 11 extrudes the drainage tube 18 to a blocking state, and the quantitative drainage is realized when the drainage is finished;

(2) as shown in fig. 5, 6, 9, in the negative pressure drainage mode:

A. according to the preset drainage starting time, the controller 14 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 backwards, namely the timing drainage is realized;

B. in the drainage process, the controller 14 adjusts the working state of the drainage adjusting assembly according to the real-time drainage speed, that is, adjusts the operating state of fluid output and fluid suction, and finally makes the real-time drainage speed and the preset drainage speed tend to be equal, that is, constant-speed drainage is realized, wherein the operating state of the fluid output and the fluid suction comprises the start-stop, duration and working frequency of the fluid output and the fluid suction;

C. in the drainage process, the controller 14 calculates the single real-time drainage amount from the initial point of the drainage to the current point in real time, when the single real-time drainage amount reaches the preset single drainage amount, the controller 14 adjusts the lower movable pressing block 7 to the stroke end, adjusts the upper movable pressing block 11 and the middle movable pressing block 10 to the respective stroke initial ends, and at the moment, the drainage is finished and the drainage tube 18 is extruded by the lower movable pressing block 7 to keep a cut-off state, so that the quantitative drainage is realized;

in the negative pressure drainage mode, after drainage is finished, the controller 14 adjusts the lower movable pressing block 7 to the stroke end, and adjusts the upper movable pressing block 11 and the middle movable pressing block 10 to the respective stroke starting ends, the technical characteristics are that when the negative pressure drainage is suspended or finished, the drainage tube 18 is extruded to the blocking state by the lower movable pressing block 7, so that effusion backflow in the drainage tube 18 is avoided, the drainage tube 18 is not extruded by the upper movable pressing block 11 and the middle movable pressing block 10, so that the drainage tube 18 in the tube placing gap can be automatically restored to the original state, namely, the cylindrical shape, the long-term flattening state is avoided, the elasticity is greatly reduced, and the stable proceeding of the subsequent negative pressure drainage is ensured.

Referring to fig. 5, 6 and 9, when the multipurpose clinical drainage device is used clinically, in the negative pressure drainage process, the drainage adjusting assembly is controlled by the controller 14 to enable the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 to perform corresponding squeezing action on the drainage tube 18 according to a specific rule, so that negative pressure drainage is realized and the negative pressure drainage state can be controlled; in the negative pressure drainage process, the structure that fixed briquetting 8, last activity briquetting 11, well activity briquetting 10, lower activity briquetting 7 and put the drainage tube 18 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, the drainage adjusting part can realize the negative pressure drainage and can carry out corresponding control to the negative pressure drainage state under controller 14's regulation and control, and specific theory of operation is as follows:

outputting the fluid:

as shown in fig. 5, before negative pressure drainage is performed, the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 are all located at the starting ends of the strokes of the respective movable strokes; when the controller 14 adjusts the upper movable pressing block 11 to the stroke end and keeps the lower movable pressing block 7 at the stroke beginning end, the upper end of the drainage tube 18 in the tube placing gap is blocked, but the lower end of the drainage tube is communicated with the drainage bag 19, when the middle movable pressing block 10 moves from the stroke beginning end to the stroke end, the drainage tube 18 is extruded by the middle movable pressing block 10, the volume of the drainage tube 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;

fluid intake:

as shown in fig. 6, after the drainage regulating assembly causes the drainage tube 18 to complete one-time fluid output, the upper movable pressing block 11 and the middle movable pressing block 10 are located at the stroke end of the respective movable stroke, and the lower movable pressing block 7 is located at the stroke beginning end of the movable stroke; when the controller 14 adjusts the lower movable pressing block 7 to the stroke end and the upper movable pressing block 11 to the stroke beginning end, the lower end of the drainage tube 18 in the tube placing gap is blocked, but the upper end is communicated with the human body, when the middle movable pressing block 10 moves from the stroke end to the stroke beginning end, the flattened drainage tube 18 can gradually restore to a cylindrical shape by 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 effusion in the human body is sucked into the drainage tube 18, so that the 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 always flow backwards, namely, the negative pressure drainage is realized;

adjusting the negative pressure drainage state:

when the controller 14 enables the drainage adjusting component to work in the manner, the negative pressure drainage is realized; when the drainage adjusting assembly stops working and the drainage tube 18 is extruded to a blocking state by the lower movable pressing block 7, the negative pressure drainage is suspended or ended; when the operating frequency of fluid output and 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. 8 and 9, in the above-mentioned multipurpose clinical drainage device, the weight-measuring suspension support assembly 4 mainly has two functions, on one hand, the weight-measuring suspension support assembly 4 provides a stable support for the drainage bag 19, so that the drainage bag 19 is in a suspension shape and has a basic function of containing drainage effusion during drainage, and on the other hand, during drainage, the weight sensor 16 in the weight-measuring suspension support assembly 4 can output a weight signal reflecting a change state of the effusion weight in the drainage bag 19, so as to provide basic data for data processing of the controller 14, and at the same time, the weight-measuring suspension support assembly 4 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 multipurpose clinical drainage device are combined, the part of the drainage tube 18 between the drainage groove 5 and the drainage bag 19 can be adjusted to a natural extension shape; in terms of the prior art, the weight-measuring suspension support assembly 4 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 4 more compact and more stable under the condition that the weighing suspension support assembly 4 meets the above requirements, the weighing suspension support assembly 4 is preferably implemented by adopting the following structure:

as shown in fig. 8 and 10, the weight-measuring suspension assembly 4 includes a sliding sleeve 21, a weighing rod 22, a load cell 16 and a suspension portion 3; 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 16 is fixed in the sliding sleeve 21 and provides upward support for the weighing rod 22; the upper end of the suspension part 3 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 3, the weighing sensor 16 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 3 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 3 from relatively rotating, the hook 23 can be made by bending a lath-shaped material; meanwhile, the lower end of the hanging part 3 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 4, the suspension part 3 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 3 and the weighing rod 22 can transmit the weight change of the effusion in the drainage bag 19 to the weighing sensor 16; the hanging part 3 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 assembly 4, and has the advantages of simple structure, accurate measurement, small size, compactness and easy implementation.

Referring to fig. 6, when the multi-purpose clinical drainage device is used clinically, in the negative pressure drainage process, the drainage tube 18 deforms to provide necessary pressure for the negative pressure drainage, generally speaking, the drainage tube 18 used clinically at present has better elasticity, and in the initial stage of the negative pressure drainage, the elasticity of the drainage tube 18 is optimal to meet the aforementioned negative pressure requirement, but as the number of times of extrusion increases, the elasticity of the drainage tube 18 in the tube placing gap is weakened, and the maximum negative pressure provided by the elasticity of the drainage tube 18 is reduced; however, in the use process of the multipurpose clinical drainage device, the multipurpose clinical drainage 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 accumulated liquid 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 and 9, in the clinical use of the multi-purpose clinical drainage device, the weight of the drainage bag 19 and the effusion inside the drainage bag is almost all borne by the hanging part 3, i.e. almost all the weight of the drainage bag 19 and the effusion inside the drainage bag is finally transmitted to the weighing sensor 16, the weight of the hanging part 3 and the drainage bag 19 after installation is constant and constant in the drainage process, so that the weight change sensed by the weighing sensor 16 is all caused by the increase of the effusion in the drainage bag 19, so that the controller 14 can calculate the weight of the effusion actually drained in unit time, i.e. the real-time drainage speed, according to the weight signal continuously fed back by the weighing sensor 16 in real time in the drainage process, and can calculate the accumulated weight increase of the effusion in the drainage bag 19 from the beginning of the drainage to the present period, i.e. the single real-time drainage quantity, therefore, the controller 14 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 16 in real time, which can be realized by adopting the prior art;

based on the working principle adopted by the multipurpose clinical drainage 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 14 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, when the multipurpose clinical drainage 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, and 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 16 and fed back to the controller 14, so that the data accuracy of the real-time drainage speed and the single real-time drainage quantity is influenced to a certain extent; however, in the multi-purpose clinical drainage device, before clinical drainage is implemented, the height of the drainage bag 19 can be adjusted through the hanging part 3, so that the part of the drainage tube 18, which is positioned between the lead-out groove 5 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, and the acting force between the drainage tube 18 and the drainage bag 19 tends to be constant, thereby reducing the influence of the factors on the data accuracy of real-time drainage speed and single real-time drainage quantity to the maximum extent.

As shown in fig. 2, 8 and 9, in the above-mentioned multipurpose clinical drainage device, the weighing sensor 16 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, so as to provide a data base for the controller 14 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 16 is a key factor that affects whether the multipurpose clinical drainage device can accurately control the drainage process; the weight measuring function part in the weight-measuring suspension support assembly 4 can be regarded as a conventional weight measuring mechanism, and as is well known, the weight measuring mechanism can only stably and accurately work in a specific direction, namely, the accuracy of a weight signal output by the weighing sensor 16 can be ensured only when the multi-purpose clinical drainage device is horizontally placed, otherwise, the gravity generated by accumulated liquid in the drainage bag 19 is decomposed, so that the weight signal output by the weighing sensor 16 is inaccurate; generally speaking, with the gradual improvement of ward conditions of medical units, the ground in the ward is relatively flat and tends to be horizontal, so when the multipurpose clinical drainage 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 16 can be ensured to be relatively accurate;

step by step, even if the ground in the ward can not reach the requirement of tending to the level, the adjustment can be realized by the way of arranging articles below the base 1, so that the multi-purpose clinical drainage 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, 6, 7 and 9, in the above-mentioned multipurpose clinical drainage device, three electric feeding mechanisms 9 are respectively connected with the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7, and the controller 14 can regulate and control the working states of the three electric feeding mechanisms 9, so as to adjust the positions of the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 in the respective moving strokes, and it is not difficult to implement the above-mentioned technical features by using the prior art in the electromechanical field, and in this embodiment, the above-mentioned technical features are preferably implemented by using the following structures:

as shown in fig. 11, the three electric feeding mechanisms 9 have the same structure, and each of them is composed of a servo motor 27, a screw rod 26 coaxially connected with the output shaft of the servo motor 27, and a guide block 25 in threaded fit with the screw rod 26, the guide block 25 is installed in the guide slot 24 of the installation plate 6, when the servo motor 27 drives the screw rod 26 to rotate, the screw rod 26 drives the guide block 25 to move along the guide slot 24, so as to be far away from or close to the fixed pressing block 8; the three guide blocks 25 are respectively fixedly connected with the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7; the start, stop, rotation direction and rotation angle of the operation of the servo motor 27 are controlled by the controller 14;

in the above-mentioned electric feeding mechanism 9, the required feeding requirement is achieved based on the screw mechanism, and besides, the specific configuration of the electric feeding mechanism 9 may be implemented by those skilled in the art based on a conventional mechanism such as a crank link mechanism, a cam mechanism, a rack and pinion mechanism, etc., and the corresponding feeding requirement may be achieved.

The multipurpose clinical drainage 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 multipurpose clinical drainage 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 multipurpose clinical drainage device is easier to popularize and use; the multipurpose clinical drainage 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 multipurpose clinical drainage 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, in the multi-purpose clinical drainage device disclosed in example 1, it has been clarified that the accuracy of the weighing signal output by the weighing sensor 16 is greatly affected by whether the multi-purpose clinical drainage device is horizontally placed; if the ground levelness is relatively poor, although the problem can be solved by cushioning articles below the base 1, the operation is troublesome, time and labor are wasted, and therefore, the embodiment is further improved on the basis of the structure of the multi-purpose clinical drainage device disclosed by the embodiment as follows:

as shown in fig. 12 and 13, a first rotating shaft 30 extending horizontally and backwardly is fixed at the rear side of the setting plate 6, and a swinging seat 29 is fixed through the first rotating shaft 30 and can swing left and right with a small amplitude; the upper end of the weight-measuring suspension support assembly 4 is connected with the swinging seat 29 through the second rotating shaft 28, so that the weight-measuring suspension support assembly 4 can swing back and forth in a small range; the first rotating shaft 30 and the second rotating shaft 28 are perpendicular to each other; when the drainage bag 19 is fixed by the hanging part 3, the weight-measuring type suspension support assembly 4 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 16 in the specific direction;

when the multi-purpose clinical drainage device is improved in structure, the weight-measuring suspension support assembly 4 has an automatic direction adjusting mechanism, even if the multi-purpose clinical drainage device is not horizontally arranged in clinical use, the weight-measuring suspension support assembly 4 can automatically adjust to and maintain a specific direction through left-right swinging and front-back swinging, so that the weighing sensor 16 can work stably and accurately;

in the improved structure, the swing seat 29 can swing left and right with small amplitude, the weight-measuring suspension assembly 4 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 assembly 4 within a small range, and avoid the inconvenience for the mounting, carrying and other operations of the multi-purpose clinical drainage device caused by the unstable relative position of the mounting plate 6 and the weight-measuring suspension assembly 4; the specific swing angle range of the small amplitude has no accurate requirement, and the aim is to ensure that the multipurpose clinical drainage device can stably and accurately work under most ground conditions;

meanwhile, the technical requirements that the weight-measuring suspension assembly 4 and the swinging seat 29 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 31 between the weight-measuring suspension assembly 4 and the swinging seat 29 and between the swinging seat 29 and the mounting plate 6;

for the technical requirement that the weight-measuring suspension support assembly 4 can be automatically adjusted to and maintained in a specific direction under the drive of gravity, when the multipurpose clinical drainage device is manufactured, the specific structural form of the weight-measuring suspension support assembly 4 is debugged, and a standard operation mode is set for the connection mode of the suspension part 3 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 16 under the direction of the weight-measuring type suspension support assembly 4, so that the weighing sensor 16 can accurately pick up the weight change state of the accumulated liquid in the drainage bag 19.

Example 3

Referring to fig. 8, drainage is a medical means commonly used in clinical practice at present, the clinical drainage process is mostly performed in a ward, and the multi-purpose clinical drainage device needs to be moved back and forth frequently from ward to ward and from ward to instrument room; when the multipurpose clinical drainage device is used clinically, the whole device can be stably supported by the base 1, the base 1 is necessarily large and heavy, the whole multipurpose clinical drainage device is labor-consuming to move integrally and is influenced by the base 1, the whole volume of the multipurpose clinical drainage device is large, the occupied space is large when the multipurpose clinical drainage 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 multipurpose clinical drainage device can be used with the infusion support after the heavy base 1 part can be removed, a great deal of convenience is brought to the 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 FIGS. 14 and 15, the multi-purpose clinical drainage device further comprises a clamping member 33 which can be clamped and fixed on the transfusion rod 37 of the transfusion stand; a combined seat 36 is arranged at the rear side of the placing plate 6, and the combined seat 36 is connected with the upper end of the upright post 2 in a detachable way; an assembling mechanism is arranged between the clamping member 33 and the combined seat 36, and when the clamping member 33 is connected with the combined seat 36, the multipurpose clinical drainage device can be supported by the transfusion rod 37 to work; the combined seat 36 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 also convenient;

therefore, as shown in fig. 15, in clinical use, the multi-purpose clinical drainage device can work in cooperation with an infusion support usually provided in a ward without depending on the support provided by the base 1, so that the multi-purpose clinical drainage device is more convenient to move, more flexible to use and more convenient and faster to operate.

Referring to fig. 14, in the above improved structure, the fastening member 33 and the combination seat 36 can be connected by the assembling mechanism, which is used to ensure that the fastening member 33 can provide sufficient and stable support for the multipurpose clinical drainage 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 33 is combined with the combination seat 36, the assembling mechanism preferably adopts the following design, and the specific structure is:

as shown in fig. 14 and 15, the assembling mechanism is composed of a T-shaped groove 35 disposed on one side of the combination seat 36 and a T-shaped rib 34 disposed on the clamping member 33, the T-shaped groove 35 extends vertically, the upper end is a blind end, the lower end is an open end, the T-shaped rib 34 and the T-shaped groove 35 can be combined, and the lower end of the T-shaped rib 34 is provided with a damping pad 32 for clamping the T-shaped groove 35;

based on the above structure adopted by the assembling mechanism, the T-shaped rib 34 of the clamping member 33 is inserted into the T-shaped groove 35 of the combined base 36 from bottom to top, so that the assembling of the combined base 36 and the clamping member 33 is completed, otherwise, the combined base 36 and the clamping member 33 can be separated; when the T-shaped rib 34 and the T-shaped groove 35 are completely combined, the damping pad 32 tightly clamps the T-shaped groove 35 to lock the relative position of the T-shaped rib 34 and the T-shaped groove 35, thereby preventing the clamping member 33 from being separated from the combination base 36.

Referring to fig. 14 and 15, in the above improved structure, the clamping member 33 is used for clamping and matching with the infusion rod 37 to provide a stable support for the multi-purpose clinical drainage device, and as far as the prior art is concerned, the clamping member 33 has various embodiments, for example, a clamping mechanism for clamping the infusion rod 37 may be disposed on the clamping member 33, or a C-shaped clamp may be disposed on the clamping member 33, and fastening screws may be added to the clamping mechanism and the C-shaped clamp, and an anti-slip pad may be added to a contact surface with the infusion rod 37 to improve the stability after the clamping member 33 and the infusion rod 37 are combined; although the clamping piece 33 can meet the basic technical requirement of providing support for the multi-purpose clinical drainage device by adopting the structure, 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 37 are the same, but no exception exists, and the implementation structure adopted by the clamping member 33 is difficult to be compatible with the infusion rods 37 with different sizes for use, and will certainly form certain limitations in clinical use; therefore, the present embodiment also proposes a novel implementation manner for the clamping member 33, and the specific structure is as follows:

as shown in fig. 16 and 17, a clamping opening 43 for accommodating the transfusion rod 37 is formed in one side of the clamping member 33, two opposite side walls of the clamping opening 43 are respectively provided with a limiting seat 44, a floating holding block 38 is respectively arranged in the limiting seat 44, opposite end portions of the two floating holding blocks 38 are arc-shaped ends 42, end surfaces of the two arc-shaped ends 42 are both arc-shaped and are respectively fixed with an anti-skid rubber pad 39, and the two arc-shaped ends 42 are respectively used for holding two sides of the transfusion rod 37; the floating holding block 38 and the limiting seat 44 are matched through a guide mechanism formed by the sliding chute 40 and the sliding block 41, so that the floating holding block 38 has an oblique floating stroke, when the two floating holding blocks 38 move upwards along respective floating strokes simultaneously, the two arc-shaped ends 42 gradually approach and enter the clamping opening 43, and when the two floating holding blocks 38 move downwards along respective floating strokes simultaneously, the two arc-shaped ends 42 gradually depart and finally retract to the corresponding limiting seats 44; the two limiting seats 44 are respectively provided with a return spring 45 which drives the corresponding floating holding block 38 to return to the uppermost end of the floating stroke;

when the clamping member 33 adopts the above structure, after the clamping port 43 of the clamping member 33 is clamped outside the infusion rod 37, the two floating clasping blocks 38 can clamp and clasp the infusion rod 37 from two opposite sides of the infusion rod 37, the weight of the multipurpose clinical drainage device can generate a downward acting force on the clamping member 33, and the two floating clasping blocks 38 can respectively receive horizontal component force to further clasp the infusion rod 37, in short, the larger the weight borne by the clamping member 33 is, the firmer the two floating clasping blocks 38 clasp the infusion rod 37 is, so that the relative movement between the clamping member 33 and the infusion rod 37 can be avoided, and the stability after the clamping member 33 and the infusion rod 37 are combined is improved;

meanwhile, because the two floating holding blocks 38 have certain floating strokes, the distance between the two floating holding blocks can be automatically adjusted according to the different diameters of the transfusion rods 37, the applicability of the clamping member 33 is improved to a certain extent, and the clamping member can be matched with various transfusion rods 37 with different diameters for use.

Example 4

Referring to fig. 4-7, in the clinical drainage process of the multi-purpose clinical drainage device, the upper movable pressing block 11, the middle movable pressing block 10 and the lower movable pressing block 7 squeeze the drainage tube 18 in the gap between the opposite tubes in different ways to realize the adjustment and control of the drainage state, so that the drainage tube 18 in the gap between the opposite tubes can be stably matched with the drainage adjusting assembly, which is a necessary condition for ensuring the stable operation of the multi-purpose clinical drainage device; in the multi-purpose clinical drainage 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 12, the lead-out groove 5 and the front side of the tube placing gap are all open, and there is a risk that the drainage tube 18 slips off from the front side of the tube placing gap in the drainage process, so as to reduce the stability of the multi-purpose clinical drainage device in operation, in order to solve the above problems, the present embodiment has a further improvement on the multi-purpose clinical drainage device:

as shown in fig. 18 and 19, a cover plate 46 is disposed on the front side of the installation plate 6, the inner end of the cover plate 46 is rotatably connected to the installation plate 6 through a rotating shaft 47, two pressing blocks 49 are disposed on one side wall of the cover plate 46, and the cover plate 46 has two station states and can be switched between the two station states by turning over; when the cover plate 46 is turned to a station state, the cover plate covers the pipe placing gap, the upper movable pressing block 11, the middle movable pressing block 10 and the front side of the lower movable pressing block 7, and the two pressing blocks 49 are respectively pressed into the introducing groove 12 and the leading-out groove 5 to firmly clamp and fix the drainage pipe 18; when the cover plate 46 is turned to another station state, it covers the front sides of the display screen 13 and the setting keys 15; a locking mechanism 48 which can lock the cover plate 46 at two stations respectively is arranged between the cover plate 46 and the setting plate 6;

therefore, in the drainage process, as shown in fig. 18, the front side opening of the tube placing gap can be plugged by the cover plate 46, and the drainage tubes 18 led into the groove 12 and the lead-out groove 5 are respectively pressed by the two pressing blocks 49, 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 multipurpose clinical drainage device is improved, meanwhile, the cover plate 46 can also prevent external foreign matters from entering the tube placing gap in the drainage process, and the working accuracy of the multipurpose clinical drainage device is improved; when drainage is not performed, as shown in fig. 19, the cover plate 46 can be used to provide a better protection function for the display 13 and the setting key 15, so as to prevent the display 13 and the setting key 15 from being damaged during the moving and idle processes of the multi-purpose clinical drainage device.

Referring to fig. 18 and 19, in the above modified structure, a locking mechanism 48 is provided between the cover plate 46 and the setting plate 6, and the locking mechanism 48 is used for locking and maintaining the cover plate 46 in a two-station state, that is, when the cover plate 46 is in a one-station state, the relative position of the cover plate 46 and the setting plate 6 can be locked by the locking mechanism 48, so that the cover plate 46 is maintained in the station state, and the corresponding function is exerted; based on this, as for the prior art, the locking mechanism 48 has various embodiments to satisfy the basic functions expected for the locking mechanism, but if the locking mechanism is implemented by the prior art, the prior art has 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 48 is further provided in this embodiment, and the specific implementation structure thereof is as follows:

as shown in fig. 20, the locking mechanism 48 includes a tongue piece 53 movably limited on the cover plate 46 and two locking magnetic sheets 50 installed on the installation plate 6, a strong magnet 52 is installed on the tongue piece 53, when the tongue piece 53 is in a reset state, the outer end thereof is exposed outside the outer end of the cover plate 46, and a spring piece 51 for driving the tongue piece 53 to automatically reset is installed in the installation plate 6; when the tongue piece 53 is in a reset state and the cover plate 46 is in a station state, the strong magnet 52 is positioned right above the corresponding locking magnet piece 50, and at the moment, the strong magnet 52 and the locking magnet piece 50 lock the relative position of the cover plate 46 and the setting plate 6 through adsorption force; when the cover plate 46 is in a working position state, the tongue piece 53 is manually pushed to move inwards, so that the strong magnet 52 can be staggered with the corresponding locking magnetic sheet 50, the locking effect is relieved, and the cover plate 46 can be turned over;

after the locking mechanism 48 adopts the above structure and adjusts the cover plate 46 to a station state, the strong magnet 52 and the corresponding locking magnet 50 lock the cover plate 46 through a large adsorption force, so that the cover plate 46 can play a desired function, although the strong magnet 52 and the locking magnet 50 have a large adsorption force when keeping the opposite direction, the shearing resistance is poor, therefore, when the station of the cover plate 46 needs to be adjusted, the tongue piece 53 can be easily pushed to move inwards, and then the strong magnet 52 and the corresponding locking magnet 50 are staggered, and the adsorption force between the two is greatly reduced, so that the cover plate 46 can be easily turned over to adjust the station state; the locking mechanism 48 has the advantages of ingenious structural design, stable work, easy implementation and no jamming fault, and overcomes the defects of the prior similar technology.

Claims

1. A multi-purpose clinical drainage device, characterized in that it comprises:

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; a combined seat is arranged at the rear side of the placing plate and is connected with the upper end of the upright post in a detachable way;

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 weight-measuring type suspension support assembly, the drainage adjusting assembly and the controller;

the clamping and fixing piece can clamp and fix a transfusion rod on the transfusion frame, an assembling mechanism is arranged between the clamping and fixing piece and the combined base, and after the clamping and fixing piece is connected with the combined base, the multipurpose clinical drainage device can be supported by the transfusion rod to work; one side of the clamping piece is provided with a clamping port for accommodating the infusion rod, two opposite side walls of the clamping port are respectively provided with a limiting seat, a floating holding block is respectively arranged in each limiting seat, the opposite end parts of the two floating holding blocks are both arc-shaped ends, the end surfaces of the two arc-shaped ends are both arc-shaped and are respectively fixed with an anti-skidding rubber mat, and the two arc-shaped ends are respectively used for holding two sides of the infusion rod; the floating holding block and the limiting seat are matched through a guide mechanism formed by the sliding chute and the sliding block to enable the floating holding block to have an oblique floating stroke, when the two floating holding blocks move upwards along respective floating strokes simultaneously, the two arc-shaped ends gradually approach to and enter the clamping opening, and when the two floating holding blocks move downwards along respective floating strokes simultaneously, the two arc-shaped ends gradually depart from and finally retract into the corresponding limiting seats; and the two limiting seats are respectively provided with a reset spring which drives the corresponding floating holding block to reset to the uppermost end of the floating stroke.

2. The multi-purpose clinical drainage device according to claim 1, wherein in the normal pressure drainage mode, the controller regulates and controls the working state of the drainage regulating assembly based on the real-time drainage speed, the single real-time drainage amount and the preset drainage parameters in a manner that:

A. when the drainage is performed for the first time, firstly, the controller regulates and controls the working state of the drainage adjusting component, so that the drainage tube alternately and circularly outputs and sucks fluid, the fluid in the drainage tube flows backwards, when the weighing sensor senses weight change, the controller adjusts the middle movable pressing block and the lower movable pressing block to the initial end of the stroke, the position of the upper movable pressing block is adjusted, the drainage tube is kept in a conducting state, and the first drainage is started; in each drainage thereafter, the controller adjusts the extrusion degree of the upper movable pressing block to the drainage tube according to the preset initial time of each drainage, so that the drainage tube is in a conduction state, namely, the timed drainage is realized;

B. in the drainage process, the controller adjusts the extrusion degree of the upper movable pressing block on the drainage 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 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 adjusted the degree of extrusion of activity briquetting to the drainage tube, made activity briquetting extrude the drainage tube to blocking the state, and this time drainage finishes this time, realizes quantitative drainage promptly.

3. The multi-purpose clinical drainage device according to claim 1 or 2, wherein in the negative pressure drainage mode, the controller regulates and controls the working state of the drainage regulating assembly based on the real-time drainage speed, the single real-time drainage amount and the preset drainage parameters in a manner that:

A. according to the preset drainage starting time, the controller regulates and controls the working state of the drainage regulating assembly, so that the drainage tube alternately and circularly outputs and sucks fluid, and the fluid in the drainage tube flows backwards, namely the timed 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 state 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 state of the fluid output and the fluid suction comprises the start-stop, duration and working frequency of the fluid output and the fluid suction;

C. in the drainage process, the controller calculates the single real-time drainage quantity from the initial drainage to the current drainage in real time, after the single real-time drainage quantity reaches the preset single drainage quantity, the controller adjusts the lower movable pressing block to the stroke terminal, adjusts the upper movable pressing block and the middle movable pressing block to the respective stroke initial ends, finishes the drainage at the moment and presses the drainage tube by the lower movable pressing block to keep a cut-off state, and then quantitative drainage is realized.