CN109331250B

CN109331250B - Multifunctional medical drainage device

Info

Publication number: CN109331250B
Application number: CN201811135069.XA
Authority: CN
Inventors: 朱忠杰; 王才丰
Original assignee: 朱忠杰
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2020-06-16
Anticipated expiration: 2038-09-28
Also published as: CN109621028A; CN109331250A; CN111282030A; CN109675127A; CN109621026A; CN109621027A; CN111249544A; CN109675126A

Abstract

The invention relates to the field of medical instruments and discloses a multifunctional medical drainage device which comprises a support assembly, a weight-counting type suspension support assembly, a drainage adjusting assembly, a controller and a power supply assembly, wherein the support assembly is arranged on the support assembly; the weight-measuring type suspension support assembly can provide support for the drainage bag and feed back the change state of the weight of accumulated liquid in the drainage bag to the controller; the drainage adjusting assembly comprises a first pipe rolling mechanism and a second pipe rolling mechanism, the working state of the first pipe rolling mechanism and the working state of the second pipe rolling mechanism are controlled by a controller, the negative pressure drainage process can be realized and controlled under the action of the first pipe rolling mechanism and the second pipe rolling mechanism on the drainage pipe, and the normal pressure drainage process can be controlled by the first pipe rolling mechanism. This multi-functional medical drainage device adopts intelligent design, uses the automatic control that can realize drainage at regular time, ration drainage and constant speed drainage with current conventional drainage subassembly cooperation, has improved the security and the stability of drainage operation, and it has two kinds of drainage modes of ordinary pressure drainage and negative pressure drainage, can satisfy most clinical drainage needs.

Description

Multifunctional medical drainage device

Technical Field

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

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 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, drainage speed and other drainage parameters.

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

a multi-functional medical drainage device, comprising:

the support assembly comprises a base, a vertical column which is supported by the base and extends vertically, and a placing plate which is supported by the vertical column and is positioned above the base and at the front side of the vertical column;

the weighing type suspension support assembly comprises a weighing rod and a suspension support beam, wherein the middle upper part of the weighing rod is limited by a mounting plate so that the weighing rod extends up and down and cannot rotate around a central shaft, and the weighing rod is connected with a weighing sensor supported by the mounting plate; the suspension beam is supported by the lower part of the weighing rod and is positioned below the placing plate, the suspension beam can be adjusted to be in the upper and lower positions along the weighing rod and locked, the suspension beam extends along the width direction of the placing plate, and two ends of the suspension beam are provided with fixing clamps for clamping the top of the drainage bag; when the drainage bag is combined with the suspension beam, the drainage bag is supported only by the suspension beam, and the weighing sensor can pick up the weight change state of the accumulated liquid in the drainage bag and output a corresponding weight signal;

the drainage adjusting assembly comprises a first pipe rolling mechanism, a second pipe rolling mechanism and a motor device, wherein the first pipe rolling mechanism and the second pipe rolling mechanism are consistent in structure and respectively comprise a concave seat arranged on the front side wall of the placing plate, a revolving wheel limited in the concave seat and capable of rotating, and a roller which is positioned on the outer side of the revolving wheel and can revolve along with the revolving wheel and rotate; the two concave seats are distributed at intervals and are respectively provided with a section of arc-shaped side wall, the arc-shaped side walls are superposed with the central shafts of the corresponding revolution wheels, and an arc-shaped gap capable of accommodating the drainage tube is formed between the arc-shaped side walls and the corresponding revolution wheels; the two rollers have the same shape and the same revolution radius; the motor device is connected with the two revolution wheels through a transmission mechanism, and can drive the two rollers to simultaneously perform forward revolution and reverse revolution, and the revolution speeds of the two rollers are always equal; a normal pressure placing groove and a negative pressure placing groove for clamping and fixing the drainage tube are formed in the front side of the placing plate, the normal pressure placing groove can guide the drainage tube to pass through an arc-shaped gap of the first tube rolling mechanism, and the negative pressure placing groove can guide the drainage tube to pass through two arc-shaped gaps of the first tube rolling mechanism and the second tube rolling mechanism in sequence; in the positive revolution process of each roller, after each roller enters the arc-shaped gap, the drainage tube in the arc-shaped gap can be extruded to a blocking state, and then the drainage tube is rolled all the time through self rotation to move, so that the fluid in the drainage tube is driven to flow towards the direction of the drainage bag until the part of the drainage tube in the arc-shaped gap is restored to a conducting state, and one-time fluid output is completed; the two rollers alternately drive the drainage tube to output fluid in the positive revolution process, so that the fluid in the drainage tube continuously flows towards the drainage bag; when the two rollers are at the initial positions, the roller of the first pipe rolling mechanism is positioned at one side opposite to the arc-shaped 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 the drainage mode and the drainage parameters of each drainage and a startup and shutdown instruction into the controller; the drainage mode comprises normal-pressure drainage and negative-pressure drainage, and 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 quantity; 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 control the working state of the motor device, and further can regulate and control revolution starting and stopping, revolution turning and revolution rotating speed of the two rollers; in the negative pressure drainage mode, the controller enables the two rollers to revolve positively, and the revolution starting and stopping and revolution rotating speed of the two rollers are regulated and controlled 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; in the normal-pressure drainage mode, normal-pressure drainage is realized based on a siphon effect, the two rollers are revolved at a lower rotating speed by the controller, the revolution starting and stopping and revolution steering of the two rollers are regulated and controlled based on the real-time drainage speed, the single real-time drainage quantity and preset drainage parameters, and the rollers in the first tube rolling mechanism extrude the drainage tube to different degrees, 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 two rollers to initial positions and then executes shutdown; the revolution start and stop of the two rollers can be manually controlled through a set key, and a display screen is used for displaying palm holding data information 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 power consumption elements.

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

① placing the multifunctional medical drainage device on the ground or platform lower than the patient, fixing the drainage bag on the lower side of the suspension beam by the fixing clamp, at the moment, suspending the drainage bag between the setting plate and the base, communicating and fixing the initial end of the drainage tube with the chamber to be drained of the patient according to the conventional drainage operation, and adjusting the multifunctional medical drainage device to the starting state by setting keys;

② when normal pressure drainage is performed, the middle lower part of the drainage tube is clamped in the normal pressure setting groove to ensure that the drainage tube passes through the arc gap of the first tube rolling mechanism, negative pressure is provided for the tail end of the drainage tube by means of a negative pressure device such as an injector, after effusion enters the middle lower part of the drainage tube, the two rollers are made to revolve properly by using a setting key, the rollers in the first tube rolling mechanism extrude the drainage tube in the arc gap to a blocking state, the lower end of the drainage tube is connected with the drainage bag, the height of the setting plate is adjusted to ensure that the part of the drainage tube between the setting plate and the drainage bag is in a natural extension state, the drainage mode is set to be the normal pressure drainage mode by using the setting key and drainage parameters are preset in the controller, and then the early preparation work of the normal pressure drainage is completed;

③ when negative pressure drainage is performed, the middle lower part of the drainage tube is clamped in part of the negative pressure arrangement groove and ensures that the drainage tube passes through the arc gap of the first tube rolling mechanism, then the two rollers revolve by means of the setting key until the rollers in the second tube rolling mechanism move to the side opposite to the arc gap, then the drainage tube is clamped in the rest negative pressure arrangement groove and ensures that the drainage tube passes through the arc gap of the second tube rolling mechanism, at the moment, the drainage tube is arranged in the whole negative pressure arrangement groove and sequentially passes through the arc gaps of the first tube rolling mechanism and the second tube rolling mechanism, the height of the arrangement plate is adjusted, the part of the drainage tube between the arrangement plate and the drainage bag is in a natural extension state, the drainage mode is set to be the negative pressure drainage mode by the setting key and the drainage parameters are preset in the controller, the early preparation work of the negative pressure drainage is completed, and then the controller can adjust and control the start, stop, the rotation speed of the two rollers based on the real-time drainage speed, the single drainage quantity and the drainage parameters, and the timing and the drainage speed of the revolution of the drainage.

Further, the multifunctional medical drainage device is provided with a remote control device, the remote control device is provided with a wireless transmission module, a display element and an instruction input element, and a control program is preinstalled inside the remote control device; the remote control device and the controller can be in matched connection through the wireless transmission module, and after the remote control device is in matched connection with the controller, the remote control device can realize all functions of a display screen and an operation key.

This multi-functional medical drainage device has following beneficial effect:

the drainage tube and the multifunctional medical drainage device are combined in a corresponding mode according to different drainage modes, after drainage parameters such as initial time of each drainage, single drainage amount, each drainage speed and the like are preset, the whole drainage operation can be automatically controlled according to the preset drainage parameters, the automatic intelligent drainage with timing, quantification and constant speed is realized, the working burden of medical workers is greatly reduced because no artificial interference is needed in the drainage process, the situation that the drainage cannot be carried out according to an expected mode due to negligence or improper operation is avoided, the safety and the stability of the clinical liquid drainage operation are improved, and the drainage effect is fully ensured; the multifunctional medical drainage device controls the drainage quantity and the drainage speed based on the coordination of the sensing device, the controller and the motor device, and compared with manual observation and control in the prior art, the multifunctional medical drainage device is more accurate in control, so that the drainage effect is further ensured; the multifunctional medical drainage device realizes the adjustment of the drainage speed and the generation of the drainage negative pressure based on the extrusion of the first tube rolling mechanism and the second tube rolling mechanism on the drainage tube, ensures the sealing property of a hydrops drainage pipeline, realizes the absolute isolation of the hydrops and the multifunctional medical drainage device, is safe and sanitary, and is suitable for recycling all parts and low in use cost; meanwhile, the first tube rolling mechanism and the second tube rolling mechanism adopt scientific and ingenious structural design, and have 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, so that the utilization rate of components is exerted to the maximum, the structure of the multifunctional medical drainage device is more compact, and the implementation cost is lower; in conclusion, the multifunctional medical 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 the main body part can be recycled.

Drawings

Fig. 1 is one of the overall structural diagrams of the multifunctional medical drainage device according to embodiment 1.

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

FIG. 3 is a schematic view showing the engagement between the setting plate and the weighing bar in embodiment 1.

FIG. 4 is a schematic structural view of a drainage regulating assembly and a controller in embodiment 1.

Fig. 5 is a schematic view of the directions of the normal pressure settling tank and the negative pressure settling tank in example 1.

FIG. 6 is a schematic view of the first tube rolling mechanism of embodiment 1 for urging the draft tube to perform fluid discharge.

FIG. 7 is a schematic view of the second tube rolling mechanism of embodiment 1 for urging the draft tube to perform fluid discharge.

Fig. 8 is a schematic view of the drainage state adjusted by applying different degrees of squeezing to the drainage tube by the rollers of the first tube rolling mechanism in the normal pressure drainage process in embodiment 1.

Fig. 9 is a schematic view of the multifunctional medical drainage device of embodiment 1 after being combined with a drainage bag and a drainage tube.

Fig. 10 is an intelligent control schematic diagram of the multifunctional medical drainage device in embodiment 1.

Fig. 11 is a schematic view showing the engagement of the suspending beam and the weighing bar in embodiment 1.

Fig. 12 is a schematic view of the two male wheels and the motor device in embodiment 1.

Fig. 13 is a schematic view showing the fitting of the runner and the roll in embodiment 2.

Fig. 14 is a schematic diagram of the cooperation of the controller and the remote control device in embodiment 3.

Fig. 15 is a schematic view of a connection structure of the weighing bar and the setting plate in embodiment 4.

FIG. 16 is a schematic view showing the connection of the swing seat, the setting plate and the guide sleeve in embodiment 4.

Fig. 17 is a schematic view of the engagement of the weight-suspension assembly and the installation plate in embodiment 5.

Fig. 18 is a partially broken away schematic view of a weighted suspension assembly according to example 5.

FIG. 19 is a schematic view showing the cooperation of a press type normally closed switch valve with a weighing bar and a cantilever beam in example 5.

Fig. 20 is a schematic structural view of the multifunctional medical drainage device according to embodiment 6.

Fig. 21 is a schematic view of the multifunctional medical drainage device and the fastener according to embodiment 6.

Fig. 22 is a schematic structural diagram of a card firmware in embodiment 6 after further improvement.

Fig. 23 is a schematic diagram of the cooperation between the card fixing member and the upper section in embodiment 6.

In the figure, 1, a base, 2, a column, 3, a fixing clamp, 4, a suspension beam, 5, a roller, 6, an arc-shaped gap, 7, a common rotating wheel, 8, a placing plate, 9, a normal pressure placing groove, 10, a negative pressure placing groove, 11, a concave seat, 12, an arc-shaped side wall, 13, a display screen, 14, a controller, 15, a setting key, 16, a weighing rod, 17, a power supply component, 18, a motor device, 19, a guide sleeve, 20, a weighing sensor, 21, a drainage tube, 22, a drainage bag, 23, a sleeve, 24, a locking bolt, 25, a transmission belt, 26, a shaft seat, 27, a belt pulley, 28, a wheel shaft, 29, a roller fork, 30, a tensioning pin, 31, a radial hole, 32, a tensioning spring, 33, a second rotating shaft, 34, a swinging seat, 35, a first rotating shaft, 36, an angle limiting mechanism, 37, a button, 38, a core rod, 39, a sleeve rod, 40, a guide hole, 41, a piston, 42 and a piston, 43. the device comprises a flow channel, 44, a pressing type normally closed switch valve, 45, a cross arm, 46, a pressing rod, 47, an air inlet and outlet hole, 48, a valve pad, 49, a valve cavity, 50, a guide bolt, 51, a return spring, 52, a vent hole, 53, a lower section, 54, a handle, 55, an upper section, 56, a clamping port, 57, a clamping piece, 58, a folding hanging ring, 59, a mounting plate, 60, a sliding groove, 61, a sliding block, 62, an arc-shaped end, 63, an anti-skid rubber pad, 64, a limiting seat, 65, a floating holding block, 66 and a pushing spring.

Detailed Description

Example 1

Referring to fig. 1 and 2, the multifunctional medical drainage device disclosed in this embodiment includes five major parts, namely a support assembly, a weight-measuring suspension assembly, a drainage adjustment assembly, a controller 14 and a power supply assembly 17;

referring to fig. 1 and 2, the support assembly includes a base 1, a column 2 and a mounting plate 8; the upright post 2 is supported by the base 1 and extends along the vertical direction, the placing plate 8 is supported by the upright post 2, and the placing plate 8 is positioned above the base 1 and at the front side of the upright post 2; the placing plate 8 is used for providing placing space for the weight-measuring suspension support assembly, the drainage adjusting assembly, the controller 14 and the power supply assembly 17 and directly or indirectly providing support;

as shown in fig. 2, 3, 9 and 10, the weight-measuring suspension assembly includes a weighing rod 16 and a suspension beam 4; the middle upper part of the weighing rod 16 is limited by the placing plate 8, so that the weighing rod 16 extends up and down and can not rotate around the central shaft, and the weighing rod 16 is connected with a weighing sensor 20 directly or indirectly supported by the placing plate 8; the suspension beam 4 is supported by the lower part of the weighing rod 16 and is positioned below the placing plate 8, the suspension beam 4 can be adjusted to be in the up-down position along the weighing rod 16 and locked, the suspension beam 4 extends along the width direction of the placing plate 8, and two ends of the suspension beam 4 are provided with fixing clamps 3 for clamping the top of the drainage bag 22; when the drainage bag 22 is combined with the suspension beam, the drainage bag 22 is supported only by the suspension beam 4, and the weighing sensor 20 can pick up the weight change state of the accumulated liquid in the drainage bag 22 and output a corresponding weight signal; after the weight-measuring suspension support assembly adopts the structure, on one hand, the weight-measuring suspension support assembly can provide stable support for the drainage bag 22, so that the drainage bag 22 is in a suspension shape and has the basic function of containing drainage effusion in the drainage process, and on the other hand, the weighing sensor 20 in the weight-measuring suspension support assembly can output a weight signal reflecting the weight change state of the effusion in the drainage bag 22 in the drainage process, so as to provide a data base for data processing of the controller 14;

as shown in fig. 2, 4, 9 and 10, the drainage regulating assembly includes a first pipe rolling mechanism, a second pipe rolling mechanism and a motor device 18; the first pipe rolling mechanism and the second pipe rolling mechanism have the same structure and respectively comprise a concave seat 11, a revolution wheel 7 and a roller 5, the concave seat 11 is arranged on the front side wall of the placing plate 8, the revolution wheel 7 is limited in the concave seat 11 through a rotating shaft mechanism and can rotate, and the roller 5 is rotationally fixed on the outer side of the revolution wheel 7, so that the roller 5 can revolve with the revolution wheel 7 and can rotate; the two recesses 11 are distributed at intervals and are respectively provided with a section of arc-shaped side wall 12, the arc-shaped side walls 12 are superposed with the central shafts of the corresponding revolution wheels 7, an arc-shaped gap 6 is formed between the arc-shaped side walls 12 and the corresponding revolution wheels 7, and the arc-shaped gap 6 is used for accommodating the drainage tube 21; the two rollers 5 have the same shape and the same revolution radius; the motor device 18 is connected with the two revolution wheels 7 through a transmission mechanism, the motor device 18 can drive the two rollers 5 to simultaneously perform forward revolution and reverse revolution, and the rotating speeds of the two rollers 5 in the revolution process are always equal; a normal pressure placing groove 9 and a negative pressure placing groove 10 which are used for clamping and fixing the drainage tube 21 and guiding the trend of the drainage tube 21 are arranged on the front side of the placing plate 8, as shown in fig. 5, the trend of the normal pressure placing groove 9 is a curve a and can guide the drainage tube 21 to pass through an arc-shaped gap 6 of the first tube rolling mechanism, the trend of the negative pressure placing groove 10 is a curve b and can guide the drainage tube 21 to pass through two arc-shaped gaps 6 of the first tube rolling mechanism and the second tube rolling mechanism in sequence, and the cross sections of the normal pressure placing groove 9 and the negative pressure placing groove 10 are U-shaped; referring to fig. 6 and 7, when the draft tube 21 is clamped in the negative pressure placing groove 10 and passes through the two arc gaps 6 in sequence, each time the draft tube 21 enters the arc gap 6 in the positive revolution process of each roller 5, the draft tube 21 in the arc gap 6 can be extruded to a blocking state, and then the draft tube 21 is rolled all the time by self to move, during which the fluid in the draft tube 21 in front of the roller 5 is driven by pressure to flow towards the direction of the draft bag 22, the portion of the draft tube 21 rolled by the roller 5 is elastically restored by itself to generate negative pressure at the beginning end of the draft tube 21, the above process is continued until the portion of the draft tube 21 in the arc gap 6 is restored to a conducting state, thereby completing one fluid output, the fluid is accumulated fluid or air in the draft tube 21, the two rollers 5 alternately drive the draft tube 21 to output fluid in the positive revolution process, continuously flowing the fluid in the drainage tube 21 to the drainage bag 22; when the two rollers 5 are at the initial position, the roller 5 of the first pipe rolling mechanism is positioned at the side opposite to the arc-shaped gap 6 and is not contacted with the drainage pipe 21; after the drainage adjusting assembly adopts the structure design, as shown in fig. 6 and 7, the drainage tube 21 is clamped in the negative pressure placing groove 10, the two rollers 5 revolve in the positive direction at the same time to realize negative pressure drainage, and the negative pressure drainage state can be adjusted by controlling the revolution start and stop and revolution rotating speed of the two rollers 5; as shown in fig. 8, the drainage tube 21 is clamped in the normal pressure placing groove 9, normal pressure drainage can be realized based on siphon effect, and the normal pressure drainage state can be adjusted by adjusting the position of the roller 5 in the first tube rolling mechanism to extrude the drainage tube 21 to different degrees; when the two rollers 5 are at the initial positions, the roller 5 of the first tube rolling mechanism is positioned at one side opposite to the arc-shaped gap 6, and in this state, the drainage tube 21 can be smoothly combined with and separated from the first tube rolling mechanism, so that the convenience of combining and separating the drainage tube 21 with the multifunctional medical drainage device is improved to a certain extent;

as shown in fig. 4, 9 and 10, the controller 14 is fixed on the installation plate 8, and 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 the drainage mode and drainage parameters of each drainage and a startup and shutdown instruction into the controller 14; the drainage mode comprises normal-pressure drainage and negative-pressure drainage, and 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 quantity; the controller 14 can obtain the weight signal continuously fed back by the weighing sensor 20 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 control the working state of the motor device 18, and further can regulate and control revolution starting and stopping, revolution turning and revolution rotating speed of the two rollers 5; as shown in fig. 6, 7 and 10, in the negative pressure drainage mode, the controller 14 makes the two rollers 5 revolve in the positive direction, and regulates and controls the revolution start/stop and revolution rotating speed of the two rollers 5 based on the real-time drainage speed, the single real-time drainage quantity and the preset drainage parameters, so as to realize the timed drainage, the constant-speed drainage and the quantitative drainage; as shown in fig. 8 and 10, in the normal pressure drainage mode, normal pressure drainage is realized based on a siphon effect, the controller 14 makes the two rollers 5 revolve at a lower rotation speed, and regulates and controls revolution start, stop and revolution steering of the two rollers 5 based on a real-time drainage speed, a single real-time drainage quantity and preset drainage parameters, so that the rollers 5 in the first tube rolling mechanism extrude the drainage tube 21 to different degrees, and realize timing drainage, constant-speed drainage and quantitative drainage; after receiving the shutdown instruction, the controller 14 adjusts the two rollers 5 to the initial positions and then performs shutdown; the revolution start and stop of the two rollers 5 can be manually controlled through a setting key 15; 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, the power supply module 17 is mounted on the mounting plate 8, and is composed of a storage battery and a plurality of voltage transformation modules, and is configured to provide operating current for power consuming components such as the load cell 20, the motor device 18, 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.

① referring to fig. 9 and 10, the multifunctional medical drainage device is placed on the ground or platform lower than the patient, the drainage bag 22 is fixed by the fixing clip 3, at this time, the drainage bag 22 is suspended between the suspension beam 4 and the base 1, the initial end of the drainage tube 21 is communicated with the chamber to be drained of the patient and fixed according to the conventional drainage operation, and the multifunctional medical drainage device is adjusted to the starting state by the setting key 15;

② referring to fig. 8 and 10, when normal pressure drainage is performed, the middle and lower parts of the drainage tube 21 are clamped in the normal pressure setting groove 9 and the drainage tube 21 is ensured to pass through the arc gap 6 of the first rolling tube mechanism, negative pressure is provided for the tail end of the drainage tube 21 by means of a negative pressure device such as an injector, after effusion enters the middle and lower parts of the drainage tube 21, the two rollers 5 are revolved by using the setting key 15, the roller 5 in the first rolling tube mechanism extrudes the drainage tube 21 in the arc gap 6 to a blocking state, the lower end of the drainage tube 21 is connected with the drainage bag 22, the height of the suspension beam 4 is adjusted, the part of the drainage tube 21 between the setting plate 8 and the drainage bag 22 is in a natural extension state, the drainage mode is set to be the normal pressure drainage mode by setting the setting key 15 and the drainage parameters are preset in the controller 14, at this time, the preliminary preparation work of normal pressure drainage is completed, the siphon effect is achieved due to the effusion existing in the drainage tube 21, the controller 14 can control the revolution of the roller 21 to control the extrusion degree of the first rolling tube 21, and the revolution state of the drainage mechanism to be a specific siphon effect, and the control the revolution state of the revolution of the rotation of the drainage tube 21:

a. according to the preset drainage starting time, the controller 14 regulates and controls revolution starting and stopping and revolution turning of the two rollers 5, reduces the extrusion degree of the rollers 5 in the first pipe rolling mechanism on the drainage pipe 21 until the drainage pipe 21 is in a conduction state, and can realize drainage each time by means of siphon effect at the moment, namely realize timing drainage;

b. in the drainage process, the controller 14 regulates and controls revolution starting and stopping and revolution steering of the two rollers 5 according to the real-time drainage speed, so that the extrusion degree of the rollers 5 in the first tube rolling mechanism on the drainage tube 21 is increased or reduced until the real-time drainage speed is equal to the preset drainage speed, and 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 regulates and controls revolution starting and stopping and revolution steering of the two rollers 5, the extrusion degree of the rollers 5 in the first tube rolling mechanism on the drainage tube 21 is increased until the drainage tube 21 is extruded to a blocking state, and at the moment, the quantitative drainage is realized after the drainage is finished;

③ referring to FIGS. 6, 7 and 10, when negative pressure drainage is performed, the middle and lower parts of the drainage tube 21 are clamped in the partial negative pressure installation groove 10, and the drainage tube 21 is ensured to pass through the arc-shaped gap 6 of the first tube rolling mechanism, then the two rollers 5 are revolved by the setting key 15 until the rollers 5 in the second tube rolling mechanism move to the side opposite to the arc-shaped gap 6, then the drainage tube 21 is clamped in the rest negative pressure installation groove 10, and the drainage tube 21 is ensured to pass through the arc-shaped gap 6 of the second tube rolling mechanism, at this time, the drainage tube 21 is arranged in the whole negative pressure installation groove 10 and sequentially passes through the arc-shaped gaps 6 of the first tube rolling mechanism and the second tube rolling mechanism, the height of the suspension beam 4 is adjusted, the part of the drainage tube 21 between the installation plate 8 and the drainage bag 22 is in a natural extension state, the drainage mode is set to be the negative pressure drainage mode by the setting key 15, the drainage parameters are preset in the controller 14, and the initial stage of negative pressure drainage is prepared, and the controller 14 controls the rotation speed of the drainage roller 5 to be the rotation speed and the revolution speed of the drainage rate and the rotation speed of the roller for controlling the roll rotation speed of the roll to be controlled in real:

a. according to the preset drainage starting time, the controller 14 enables the two rollers 5 to simultaneously revolve forwards, alternately enables the drainage tube 21 to output fluid, and drives the accumulated fluid or air in the drainage tube 21 to continuously flow towards the drainage bag 22, so that the timed drainage is realized;

b. in the drainage process, the controller 14 increases or decreases the rotating speed of the positive revolution of the two rollers 5 according to the real-time drainage speed until the real-time drainage speed is equal to the preset drainage speed, namely, 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, and after the single real-time drainage amount reaches the preset single drainage amount, the controller 14 stops the revolution of the two rollers 5, and at the moment, the drainage is finished and the drainage tube 21 is extruded by one roller 5 to keep a cut-off state, so that the quantitative drainage is realized.

Referring to fig. 1, 9 and 10, in the multifunctional medical drainage device, the upper middle part of the weighing rod 16 is limited by the mounting plate 8, so that the weighing rod 16 extends in the vertical direction and cannot rotate around the central shaft, and the weighing rod 16 is connected with the weighing sensor 20, therefore, the weighing rod 16 can provide support for the suspension beam 4 and ensure that the suspension beam 4 cannot rotate relative to the mounting plate 8 on one hand, and can transmit the weight change of the liquid accumulated in the drainage bag 22 to the weighing sensor 20 on the other hand; based on the above-mentioned setting purpose of weighing lever 16, the cooperation structure of weighing lever 16, mounting plate 8 and weighing sensor 20 three adopts prior art to have multiple implementation mode, for example can adopt following structure:

as shown in fig. 2 and 3, the placing plate 8 is provided with a guide sleeve 19, an inner cavity which extends up and down and has an open lower end and a blind upper end is arranged in the guide sleeve 19, the middle upper part of the weighing rod 16 is positioned in the guide sleeve 19 and can only slide up and down relatively, and the weighing sensor 20 is fixed in the guide sleeve 19 to provide upward support for the weighing rod 16; therefore, the weighing rod 16 is limited by the guide sleeve 19 and can only float up and down to a small extent without rotating, so that the technical requirement of supporting the suspension beam 4 can be met, and meanwhile, because the weighing rod 16 is vertical and only the weighing sensor 20 provides upward support, the downward acting force generated by the weighing rod 16 tends to be completely applied to the weighing sensor 20, namely, the technical requirement of transmitting the weight change of the effusion in the drainage bag 22 to the weighing sensor 20 can be met.

Referring to fig. 1, 2 and 9, in the multifunctional medical drainage device, the suspension beam 4 is supported by the lower part of the weighing rod 16 and is located below the placing plate 8, and the placing mode of the suspension beam 4 has two technical requirements, on one hand, the suspension beam 4 always extends along the width direction of the placing plate 8, so as to ensure that the drainage bag 22 supported by the suspension beam and the placing plate 8 tend to be in the same plane, thereby reducing the space occupied by the multifunctional medical drainage device in clinical use, and on the other hand, the suspension beam 4 can be adjusted in the up-down position along the weighing rod 16 and can be locked, so that after the drainage bag 22, the drainage tube 21 and the multifunctional medical drainage device are combined, the height of the drainage bag 22 can be adjusted as required, and the part of the drainage tube 21 located between the clamping groove and the drainage bag 22 is in a natural extension state; based on the technical requirements of the two aspects, the connection mode of the suspension beam 4 and the weighing rod 16 can adopt the following structure:

as shown in fig. 11, a sleeve 23 is disposed in the middle of the suspension beam 4, the sleeve 23 is disposed in the middle-lower portion of the weighing rod 16 and can only move up and down along the weighing rod 16, and a locking bolt 24 capable of locking the sleeve 23 and the weighing rod 16 is disposed on the sleeve 23; therefore, the suspension beam 4 cannot rotate relative to the weighing rod 16, and the height of the suspension beam 4 can be adjusted and locked, namely, the technical requirements of the two aspects are met.

Referring to fig. 6 and 7, in the multifunctional medical drainage device, the revolution manners of the two rollers 5 in the first and second tube rolling mechanisms are divided into forward revolution and reverse revolution according to the different rotation directions, wherein the forward and reverse are only one rotation direction reference set for convenience of description with respect to the rollers 5 themselves, because the relative positions of the drainage tube 21 and the two rollers 5 are not limited to a specific one in the specific implementation process, and the actual revolution turning direction required by the rollers 5 to drive the accumulated fluid in the drainage tube 21 to flow from the human body to the drainage bag 22 is influenced by the relative positions of the drainage tube 21 and the rollers 5, so in the foregoing description, the rotation direction in which the accumulated fluid in the drainage tube 21 can be driven to flow from the human body to the drainage bag 22 in the revolution process of the rollers 5 is defined as the forward direction, and vice versa; meanwhile, the actual rotational directions of the two rolls 5 in the forward revolution are not necessarily the same due to the above reasons.

Referring to fig. 4 and 12, in the multifunctional medical drainage device, the revolution wheel 7 is limited in the recess 11 to be rotatable, and the motor device 18 is connected with the two revolution wheels 7 through a transmission mechanism; the technical features described above have various embodiments, for example, a wheel axle 28 may be disposed inside the revolving wheel 7, a shaft seat 26 rotatably engaged with the wheel axle 28 and supporting the wheel axle 28 is fixed at the bottom of the recess 11, the wheel axles 28 of the two revolving wheels 7 are respectively connected with a belt pulley 27, the motor device 18 may drive the two belt pulleys 27 to rotate via the transmission belt 25, and the technical requirement that the motor device 18 may drive the two rollers 5 to revolve at the same revolving speed can be realized by reasonably controlling the size and type of each component of the transmission component; meanwhile, according to the relative position between the motor device 18 and the two revolving wheels 7, the connection mode between the wheel shaft 28 and the corresponding belt pulley 27 is selected to be concentric and directly connected or connected by a gear mechanism with the function of adjusting the rotating direction, so that the technical requirement that the motor device 18 can drive the two rollers 5 to simultaneously perform forward revolution and reverse revolution can be realized.

Referring to fig. 4, 6 and 8, in the multifunctional medical drainage device, a drainage tube 21 can be combined in a normal pressure arrangement groove 9 and a negative pressure arrangement groove 10; on one hand, after the middle lower part of the drainage tube 21 is fixed by the normal pressure placing groove 9 or the negative pressure placing groove 10, external force interference on the drainage bag 22 caused by unstable factors such as shaking of the middle upper part of the drainage tube 21 can be effectively avoided, and the data accuracy and stability of the real-time drainage speed and the single real-time drainage quantity are improved; on the other hand, the normal pressure arrangement groove 9 and the negative pressure arrangement groove 10 can guide the direction of the drainage tube 21, so that the middle lower part of the drainage tube 21 can smoothly pass through the corresponding arc-shaped gap 6, the tube resistance is effectively reduced, and the stability of the cooperation of the drainage tube 21 with the first tube rolling mechanism and the second tube rolling mechanism is improved.

Referring to fig. 6 and 7, when the multifunctional medical drainage device is used clinically, in the negative pressure drainage process, each roller 5 can make the drainage tube 21 generate one fluid output in the positive revolution, so that the fluid output generated by the same roller 5 in the continuous positive revolution process is pulse-type; however, in the multifunctional medical drainage device, the rotating speeds of the two revolution wheels 7 are always equal when revolving in the forward direction, for example, the specific shape parameters of the two arc gaps 6 and the relative positions of the two rollers 5 are debugged and controlled, so that when one roller 5 causes the drainage tube 21 to output fluid, the other roller 5 just starts to cause the drainage tube 21 to output fluid, and the adjacent two fluid outputs are not overlapped or interrupted, thereby realizing the technical purpose of continuously outputting the fluid in the drainage tube 21 when the two rollers 5 revolve in the forward direction, and simultaneously avoiding the chance of fluid backflow in the drainage tube 21; the technical characteristics of the two rollers 5 with the same shape and the same revolution radius ensure that the flow velocity of the fluid in the drainage tube 21 is uniform during the two rollers 5 performing the positive revolution at a constant rotation speed.

Referring to fig. 6, 7 and 9, when the multifunctional medical drainage device is used clinically, in the negative pressure drainage process, the necessary pressure difference needs to be provided for the negative pressure drainage by means of the self elastic capacity of the drainage tube 21, generally speaking, the drainage tube 21 used clinically at present has better elasticity, in the initial use stage, the elastic performance of the drainage tube 21 is optimal, and the aforementioned negative pressure requirement can be met, but as the extrusion times increase, the elastic performance of the drainage tube 21 located in the arc-shaped gap 6 is weakened, and the negative pressure provided by means of the self elastic capacity of the drainage tube is reduced; however, in the use process of the multifunctional medical drainage device, the multifunctional medical drainage device can be placed at a position lower than a patient, and the first pipe rolling mechanism and the second pipe rolling mechanism act on the middle lower part of the drainage pipe 21, so that the gravitational potential energy of effusion in the drainage pipe 21 can relieve the required negative pressure requirement in the drainage process, the additionally provided negative pressure is smaller in the situation, and even if the elasticity of the drainage pipe 21 is weakened, enough negative pressure can be still provided for negative pressure drainage.

Referring to fig. 9 and 10, in the use process of the multifunctional medical drainage device, the weight of the drainage bag 22 and the accumulated liquid therein is almost borne by the suspension beam 4, that is, almost the entire weight of the drainage bag 22 and the accumulated liquid therein is finally applied to the weighing sensor 20, the weights of the weighing rod 16, the suspension beam 4, the drainage bag 22 and other components are constant during the drainage process, so that the weight change sensed by the weighing sensor 20 is almost caused by the increase of the accumulated liquid in the drainage bag 22, therefore, the controller 14 can calculate the weight change speed of the accumulated liquid in the drainage bag 22, that is, the real-time drainage speed, according to the weight signal continuously fed back by the weighing sensor 20 during the drainage process, that is, the accumulated weight increase of the accumulated liquid in the drainage bag 22 during the period from the beginning of the drainage to the present time, that is, the single real-time drainage quantity, therefore, the technical requirement that 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 20 in real time can be realized by adopting the prior art;

if the drainage bag is not placed, in the drainage process, the upper end of the drainage bag 22 is fixedly connected with the tail end of the drainage tube 21, the drainage tube 21 inevitably generates certain acting force on the drainage bag 22, and the acting force can be changed along with the deformation of the drainage bag 22, so that certain influence is brought to the data accuracy of the real-time drainage speed and the single real-time drainage quantity; however, in the multifunctional medical drainage device, the height of the suspension beam 4 can be adjusted and locked, and before clinical drainage is implemented, the height of the suspension beam 4 is adjusted to enable the drainage tube 21 to be in a natural extension state at the part between the mounting plate 8 and the drainage bag 22, so that the acting force of the lower end of the drainage tube 21 on the drainage bag 22 can be reduced, the acting force between the drainage tube and the drainage bag is stable, and the influence of the factors on the data accuracy of the real-time drainage speed and the single real-time drainage quantity is reduced.

Referring to fig. 2, 3 and 9, in the multifunctional medical drainage device, the weighing sensor 20 can pick up the change state of the weight of the accumulated liquid in the drainage bag 22, and output a weight signal according to the change state to provide a data basis for the controller 14 to calculate parameters such as real-time drainage speed, single real-time drainage quantity and the like, so that the accuracy of the weight signal output by the weighing sensor 20 is a key factor influencing whether the multifunctional medical drainage device can accurately control the drainage process; the structure and functions formed by the weighing sensor 20, the weighing rod 16 and the suspension beam 4 can be regarded as a conventional weighing mechanism, and as is well known, the weighing mechanism can only stably and accurately work in a specific direction, that is, only when the multifunctional medical drainage device is horizontally placed, the accuracy of a weight signal output by the weighing sensor 20 can be ensured, otherwise, the gravity generated by accumulated liquid in the drainage bag 22 is decomposed, and the weight signal output by the weighing sensor 20 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 multifunctional medical 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 retransmission sensor 20 can be ensured to be relatively accurate;

step back, even if the ground in the ward can not reach the requirement of tending to the horizontality, the multifunctional medical drainage device can be adjusted by a mode of arranging articles below the base 1 in a cushioning mode, so that the multifunctional medical drainage device is horizontally placed, and the accuracy of the weight signal output by the retransmission sensor in the clinical drainage process is ensured.

Referring to fig. 10, in the multifunctional medical drainage device, the controller 14 can control the working state of the motor device 18, and further can regulate and control the revolution states of the two rollers 5, such as revolution start and stop, revolution rotation speed and the like, thereby realizing the regulation of the negative pressure drainage state and the normal pressure drainage state in clinical use; in the technical characteristics, the motor device 18 can adopt a servo motor, an output shaft of the servo motor is in transmission connection with the two common rotating wheels 7 through a transmission mechanism, and the start and stop of the servo motor, the rotation direction and the rotation speed of the output shaft are controlled by the controller 14, so that the control requirements of the controller 14 on the motor device 18 can be realized; in the prior art, the controller 14 is used for performing the aforementioned regulation and control on the working state of the servo motor, which is a conventional technology and is widely applied.

As shown in fig. 9 and 10, the multifunctional medical 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 clinical drainage operation, so that the purpose of intelligent automatic drainage control is achieved, the labor burden is saved, and the safety, stability and accuracy of drainage operation are improved; the multifunctional medical drainage device is matched with the conventional drainage bag 22 and the drainage tube 21 for use, and the existing structures of the drainage bag 22 and the drainage tube 21 are not required to be changed, so that the multifunctional medical drainage device is easier to popularize and use; this multi-functional medical drainage device has two kinds of mode of ordinary pressure drainage and negative pressure drainage, can satisfy different drainage operation demands such as pleural effusion drainage, abdominal cavity hydrops drainage, and the suitability is stronger, and application scope is wider, has great clinical spreading value.

Example 2

Referring to fig. 6 and 7, in the multifunctional medical drainage device disclosed in embodiment 1, after each time the roller 5 enters the arc-shaped gap 6 during the forward revolution, the roller can roll the drainage tube 21 from the beginning of rotation to move, so as to drive the fluid in the drainage tube 21 to flow towards the drainage bag 22, thereby completing the primary fluid output; in this process, the pressure applied by the roller 5 to the drainage tube 21 should be appropriate, on one hand, the drainage tube 21 should be squeezed to the direction of the arc-shaped side wall 12 as much as possible, so as to improve the output efficiency of the accumulated liquid, on the other hand, the roller 5 should be prevented from causing excessive pressure to the drainage tube 21, so as to avoid the drainage tube 21 located in the arc-shaped gap 6 from being damaged, in order to ensure that the above two effects are balanced, the present embodiment has a further improvement on the matching mode of the roller 5 and the revolving wheel 7, and the specific implementation structure is as follows:

as shown in fig. 13, the rolling roll 5 is fixed in the roll fork 29 through a rotating shaft, a radial hole 31 with a square cross section is formed inwards on the side wall of the revolving wheel 7, a tensioning pin 30 which is in a square column shape and is in sliding fit with the radial hole 31 is defined in the radial hole 31, a tensioning spring 32 which provides thrust for the tensioning pin is arranged at the bottom of the radial hole 31, and the outer end of the tensioning pin 30 is fixedly connected with the top of the roll fork 29; when the roller 5 and the arc-shaped side wall 12 press the drainage tube 21, the tension spring 32 is in a compressed state and is not completely compressed;

therefore, the roller 5 can float along the radial direction of the revolution wheel 7 to a certain extent, has a tensioning function, can provide sufficient extrusion for the drainage tube 21 to ensure the effusion output efficiency when passing through the arc-shaped gap 6, and can prevent the drainage tube 21 from being damaged due to overlarge pressure applied by the roller 5.

Example 3

Referring to fig. 9, in clinical use, the specific installation position of the multifunctional medical drainage device disclosed in embodiment 1 is directly determined by the position of the patient and the layout of the drainage tube 21, and the position of the multifunctional medical drainage device is often in clinical use, which is not beneficial to the operator to perform operations such as parameter presetting through an operation key or to know the drainage state through observing the display screen 13, thereby bringing certain inconvenience to clinical operation; in order to solve the defect, the present embodiment is further improved based on the structure of the multifunctional medical drainage device disclosed in embodiment 1, and the specific structure is as follows:

as shown in fig. 14, the multifunctional medical drainage device is equipped with a remote control device, the remote control device is provided with a wireless transmission module, a display element and an instruction input element, and a control program is pre-installed in the remote control device, a wireless transmission module is integrated in the controller 14, the remote control device and the controller 14 can be in matched connection through the wireless transmission module, and when the remote control device and the controller 14 are in matched connection, the remote control device can realize all functions of the display screen 13 and the operation keys;

therefore, in the clinical drainage process, the remote control device can conveniently perform operations such as parameter presetting and the like, and can also conveniently and timely acquire the running condition and the drainage state of the multifunctional medical drainage device, thereby bringing great convenience to clinical operation;

when the technical characteristics are implemented, the wireless transmission module can adopt a wifi module or a bluetooth module, the popularization rate of the current smart phone is very high, and the wifi module and the bluetooth module are mostly integrated, so that the remote control device can be used after a control program is preassembled in the smart phone, the technical characteristics are implemented more conveniently, and the implementation cost is lower.

Example 4

Referring to fig. 3 and 9, it has been clarified in the foregoing embodiment that the accuracy of the weighing signal outputted from the weighing sensor 20 is greatly influenced by whether the multi-functional medical drainage device is horizontally placed; although the mode of establishing article through the pad in base 1 below when meeting ground levelness relatively poor solves, nevertheless the operation is got up comparatively troublesome, wastes time and energy, and for this reason, this embodiment is directed against above-mentioned problem, has further improvement to the cooperation mode of weighing formula suspension subassembly and mounting plate 8, and concrete implementation structure is:

as shown in fig. 15 and 16, a first rotating shaft 35 extending horizontally and backwardly is fixed at the rear side of the installation plate 8, and a swing seat 34 is fixed through the first rotating shaft 35 and can swing left and right with a small amplitude; the upper end of a guide sleeve 19 is connected with a swinging seat 34 through a second rotating shaft 33, so that the guide sleeve 19 can swing back and forth in a small range; the first rotating shaft 35 and the second rotating shaft 33 are vertical to each other; the middle upper part of the weighing rod 16 is limited by a guide sleeve 19 and is connected with a weighing sensor 20 fixed in the guide sleeve 19; after the drainage bag 22 is fixed by the fixing clamp 3, the weighing sensor 20, the weighing rod 16, the suspension beam 4 and the drainage bag 22 are driven by gravity to always maintain a specific direction, and the weighing sensor 20 can accurately pick up the weight change state of the accumulated liquid in the drainage bag 22 in the specific direction;

therefore, the weighing mechanism consisting of the weighing sensor 20, the weighing rod 16 and the suspension beam 4 has an automatic direction adjusting mechanism, and even if the multifunctional medical drainage device is not horizontally arranged in clinical use, the weighing sensor 20, the weighing rod 16, the suspension beam 4 and the drainage bag 22 can automatically adjust to and maintain in a specific direction through left-right swinging and front-back swinging along with the guide sleeve 19, so that the weighing sensor 20 stably and accurately works;

in the matching mechanism adopted by the weight-measuring type suspension support assembly and the mounting plate 8, the swinging seat 34 can swing left and right in a small range, the guide sleeve 19 can swing front and back in a small range, and the front and back swing and the left and right swing are both in a small range, so that the change of the relative position of the mounting plate 8 and the weight-measuring type suspension support assembly is limited in a small range, and the inconvenience brought to the mounting, carrying and other operations of the multifunctional medical drainage device due to the unstable relative position of the mounting plate 8 and the weight-measuring type suspension support assembly is avoided; the specific swing angle range of the small amplitude has no accurate requirement, and the aim is to ensure that the multifunctional medical drainage device can stably and accurately work under most ground conditions;

meanwhile, the technical requirements that the guide sleeve 19 and the swinging seat 34 can only swing back and forth and swing left and right within a small range are met, and the technical requirements can be easily met by arranging corresponding angle limiting mechanisms 36 between the guide sleeve 19 and the swinging seat 34 and between the swinging seat 34 and the mounting plate 8;

for the technical requirement that the weighing sensor 20, the weighing rod 16, the suspension beam 4 and the drainage bag 22 are driven by gravity to be automatically adjusted to and maintained in a specific direction, when the multifunctional medical drainage device is manufactured, the relative positions and the specific structural forms of the weighing sensor 20, the weighing rod 16, the suspension beam 4 and the fixing clamp 3 are debugged, and a standard operation mode is set for the connection mode of the fixing clamp 3 and the drainage bag 22, so that the technical requirement is realized without difficulty; the specific direction refers to the weight sensor 20, the weighing rod 16, the suspension beam 4 and the drainage bag 22, and the weight sensor 20 can accurately pick up the weight change state of the accumulated liquid in the drainage bag 22.

Example 5

Referring to fig. 1, 2 and 11, in the multifunctional medical drainage device, there is a technical feature that the suspension beam 4 can be adjusted in vertical position and locked along the weighing rod 16, so as to ensure that the suspension beam 4 can provide stable support for the drainage bag 22, and at the same time, the distance between the drainage bag 22 and the placement plate 8 can be adjusted according to clinical needs, the technical feature is that the suspension beam 4 has various implementation manners by adopting the prior art, and a conventional implementation structure is also listed in the embodiment 1, but there is a problem that the suspension beam 4 and the weighing rod 16 are matched by adopting the prior art, and the operations of height adjustment, locking, unlocking and the like of the suspension beam 4 are not convenient, time and labor are wasted, and the efficiency is low; for this reason, the present embodiment has a further improvement on the matching manner of the suspending beam 4 and the weighing bar 16, and the specific structure is as follows:

as shown in fig. 17 and 18, the weighing rod 16 includes a sleeve rod 39 and a core rod 38, the sleeve rod 39 is defined by the mounting plate 8 and connected to the weighing sensor 20, the sleeve rod 39 extends in the vertical direction and cannot rotate around the central axis, a piston cavity 42 with a closed upper end is arranged in the sleeve rod 39, a guide hole 40 communicated with the piston cavity 42 is arranged at the lower end of the sleeve rod 39, and a piston 41 is arranged in the piston cavity 42; the upper end of the core rod 38 extends into the piston cavity 42 through the guide hole 40 and is fixedly connected with the piston 41, the lower end of the core rod 38 is fixedly connected with the suspension beam 4, and the core rod 38 and the loop bar 39 can only move relatively in the axial direction; a press type normally closed switch valve 44 is arranged on the suspension beam 4, and a button 37 of the press type normally closed switch valve 44 is arranged on the upper side of the suspension beam 4; a flow passage 43 is formed in the piston 41 and the core rod 38, and the flow passage 43 connects and only connects the piston cavity 42 on the upper side of the piston 41 with a pressing type normally closed switch valve 44, so that the pressing type normally closed switch valve 44 can change the communication state of the piston cavity 42 on the upper side of the piston 41 with the atmosphere;

after the weighing rod 16 and the suspension beam 4 adopt the above structure, the pressing type normally closed switch valve 44 is in a closed state when not acted by external force, the piston cavity 42 above the piston 41 and the flow passage 43 form a closed space without being communicated with the atmosphere, at this time, the piston 41 cannot move, namely, the suspension beam 4 is in a locked state; when the button 37 is pressed downwards, the pressing type normally closed switch valve 44 is switched to be in a conducting state, the piston cavity 42 and the flow channel 43 above the piston 41 are communicated with the atmosphere through the pressing type normally closed switch valve 44, and at the moment, the piston 41 can move up and down correspondingly after being stressed, so that the purpose of adjusting the height of the suspended supporting beam 4 is achieved; therefore, the height of the suspension support beam 4 can be adjusted by pressing the button 37 and driving the suspension support beam 4 to move up and down, and after the button 37 is stopped being pressed, the position of the suspension support beam 4 is automatically locked, so that the operation is convenient and fast, the operation can be carried out by one hand, the time and the labor are saved, and the efficiency is extremely high;

the pressing type normally closed switch valve 44 related to the above technical features is an existing device, that is, a pressing type valve which has two states of closing and conducting and can be automatically reset to a closing state; in the above technical features, the technical requirement that the core rod 38 and the loop bar 39 can only move relatively in the axial direction is met, which aims to ensure that the suspension beam 4 cannot rotate because it extends along the width direction of the installation plate 8, and the technical requirement can be easily met by setting the cross sections of the guide hole 40 and the core rod 38 to be non-circular structures or adding a circumferential limiting mechanism between the two;

meanwhile, in order to make the multifunctional medical drainage device work more stably in the clinical use process and operate more conveniently, certain additional requirements are further provided for the pressing type normally closed switch valve 44, on one hand, in order to prevent the suspension beam 4 from automatically moving downwards in the clinical drainage process, the pressing type normally closed switch valve 44 should have higher tightness so as to prevent air from entering the piston cavity 42 above the piston 41 through the pressing type normally closed switch valve 44, on the other hand, the force applied to the button 37 by adjusting the pressing type normally closed switch valve 44 to the on state is not too large so as to improve the convenience of adjusting the height of the suspension beam 4, while the existing pressing type normally closed switch valve 44 is generally difficult to meet the technical requirements of the two aspects, therefore, an optimized design of the pressing type normally closed switch valve 44 is also provided in the embodiment, and the specific implementation structure is as follows:

as shown in fig. 19, the pressing type normally closed switch valve 44 includes a cylindrical valve cavity 49, the upper end of the valve cavity 49 is an air inlet/outlet hole 47 with a smaller diameter, the valve cavity 49 is communicated with the atmosphere through an air vent 52, a guide bolt 50 capable of sliding up and down is arranged in the valve cavity 49, and a bowl-shaped valve pad 48 is arranged at the upper end of the guide bolt 50; when the guide bolt 50 is located at the initial position, the valve pad 48 is buckled at the upper end of the valve cavity 49 to block the air inlet and outlet hole 47, and the guide bolt 50 moves downwards until the valve pad 48 leaves the upper end of the valve cavity 49 and then the air outlet hole 47 is communicated with the air vent 52 through the valve cavity 49; a return spring 51 for driving the guide bolt 50 to move upwards to an initial position is arranged in the valve cavity 49; a pressing rod 46 is arranged on one side of the valve cavity 49, the pressing rod 46 is fixedly connected with a guide bolt 50 through a cross arm 45, so that the pressing rod 46 and the guide bolt 50 synchronously move up and down, and a button 37 is arranged at the upper end of the pressing rod 46;

when the pressing type normally closed switch valve 44 adopts the above structure, the piston 41 has a tendency of moving downwards under the action of the gravity of the suspension beam 4, the drainage bag 22 and the core rod 38, the upper side of the vent hole 52 generates negative pressure, so that the valve pad 48 is further tightly buckled at the upper end of the valve cavity 49, i.e. the larger the downward acting force of the piston 41 is, the tighter the valve pad 48 is contacted with the upper end of the valve cavity 49, and thus the negative pressure is maintained in the piston cavity 42 to prevent the piston 41 from moving downwards; meanwhile, since the tightness between the valve pad 48 and the upper end of the valve cavity 49 can be enhanced with the increase of the negative pressure in the piston cavity 42, the restoring spring 51 is not required to provide an excessive pushing force, so that the pushing force of the restoring spring 51 can be properly reduced, i.e., the force required to be applied to the button 37 when the pressing type normally closed switch valve 44 is adjusted to the conducting state is reduced, and the height adjustment of the suspension beam 4 is more convenient and labor-saving.

Example 6

Referring to fig. 1 and 2, 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 a multifunctional medical drainage device needs to be frequently moved back and forth between wards and instrument rooms; when the multifunctional medical 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 multifunctional medical drainage device is difficult to move integrally and is influenced by the base 1, the integral volume of the multifunctional medical drainage device is large, the occupied space is large when the multifunctional medical drainage device is used, and the flexibility is poor; in order to solve the above problems, the present embodiment has further improvements to the multifunctional medical drainage device, and the specific implementation structure is:

as shown in fig. 20 and 21, the upright post 2 is composed of an upper section 55 and a lower section 53 which are spliced and combined to be disassembled, the upper section 55 is cylindrical, and the lower end part of the upper section 55 is provided with a handle 54; the multifunctional medical drainage device also comprises a clamping piece 57, one side of the clamping piece 57 is provided with a C-shaped clamping port 56 for clamping and fixing the upper section 55, and the rear end of the clamping piece 57 is provided with a mounting plate 59; a folding hanging ring 58 is arranged above the placing plate 8;

therefore, a clamping piece 57 can be arranged on one side of each sickbed, the upper section 55 is fixed in the clamping port 56 during clinical use, and the clamping piece 57 provides support for the multifunctional medical drainage device, so that the support is not needed by the base 1, the multifunctional medical drainage device is more convenient and labor-saving to move, and the occupied space during use is effectively reduced; meanwhile, hooks for hanging articles are arranged on a plurality of clinical hospital beds, and the multifunctional medical drainage device can be directly hung on one side below the hospital beds for use by means of the folding hanging ring 58, so that the multifunctional medical drainage device is more flexible and convenient to use;

in the technical characteristics, because the upper section 55 is cylindrical, the clamping opening 56 of the clamping member 57 is C-shaped, and the clamping member 57 can be clamped at different positions of the upper section 55, different requirements of the multifunctional medical drainage device on height in clinical use can be met;

in addition, when the multifunctional medical drainage device is used in cooperation with the clamping member 57, the stable cooperation between the clamping member 57 and the upper section 55 is a necessary condition for the normal operation of the multifunctional medical drainage device, and as for the prior art, various means can be adopted to improve the stability of the cooperation between the clamping member 57 and the upper section 55, for example, the size of the clamping opening 56 can be reduced and an anti-slip pad is arranged on the inner wall of the clamping opening 56, so that the clamping force and the friction coefficient of the upper section 55 are improved, but the means has the disadvantage that the combination and separation of the clamping member 57 and the upper section 55 are laborious; for example, a locking screw capable of locking the clamping member 57 and the upper section 55 may be additionally provided on the clamping member 57, which has the disadvantage that the locking screw needs to be adjusted each time the clamping member 57 and the upper section 55 are combined and separated, and the operation is troublesome; therefore, the embodiment further improves the aforementioned clamping member 57, so that the clamping member is not only high in matching stability with the upper section 55, but also labor-saving and convenient to combine with and separate from the upper section 55, and the specific improvement mode is as follows:

as shown in fig. 22 and 23, two opposite side walls of the clamping opening 56 of the clamping member 57 are respectively provided with a limiting seat 64, the limiting seats 64 are respectively provided with a floating holding block 65, opposite end portions of the two floating holding blocks 65 are both arc-shaped ends 62, end surfaces of the two arc-shaped ends 62 are both arc-shaped and are respectively fixed with an anti-slip rubber pad 63, and the two arc-shaped ends 62 are respectively used for holding two sides of the upper section 55; the floating holding block 65 and the limiting seat 64 are matched through a guide mechanism formed by the sliding chute 60 and the sliding block 61, so that the floating holding block 65 has an oblique floating stroke, when the two floating holding blocks 65 move downwards along respective floating strokes simultaneously, the two arc-shaped ends 62 gradually approach and enter the clamping opening 56, and when the two floating holding blocks 65 move upwards along respective floating strokes simultaneously, the two arc-shaped ends 62 gradually leave and finally retract into the corresponding limiting seats 64; the two limiting seats 64 are respectively provided with a pushing spring 66 which drives the corresponding floating holding block 65 to reset to the lowest end of the floating stroke;

referring to fig. 23, when the clamping member 57 is configured as described above, and the upper section 55 of the weighing bar 16 is combined with the clamping member 57, the two floating clasping blocks 65 can automatically adjust the position through floating, so as to ensure that the upper section 55 is clamped into the clamping opening 56 and is automatically clasped by the two floating clasping blocks 65; after the upper section 55 and the clamping member 57 are combined, the weight of the multifunctional medical drainage device is borne by the two floating holding blocks 65, and the two floating holding blocks 65 are subjected to horizontal component force to further hold the upper section 55 tightly, namely, the larger the weight borne by the clamping member 57 is, the more remarkable the clamping effect of the two floating holding blocks 65 on the upper section 55 is, so that the clamping member 57 and the upper section 55 can be prevented from moving relatively, the stability of the combined upper section and the clamping member 57 is improved, and the clamping member 57 is ensured to provide stable support for the multifunctional medical drainage device.

Claims

1. A multi-functional medical drainage device, its characterized in that, it includes:

the weighing type suspension support assembly comprises a weighing rod and a suspension support beam, wherein the middle upper part of the weighing rod is limited by a mounting plate so that the weighing rod extends up and down and cannot rotate around a central shaft, and the weighing rod is connected with a weighing sensor supported by the mounting plate; the suspension beam is supported by the lower part of the weighing rod and is positioned below the placing plate, the suspension beam can be adjusted to be in the upper and lower positions along the weighing rod and locked, the suspension beam extends along the width direction of the placing plate, and two ends of the suspension beam are provided with fixing clamps for clamping the top of the drainage bag; after the drainage bag is combined with the suspension beam, the drainage bag is supported only by the suspension beam, and the weighing sensor can pick up the weight change state of the accumulated liquid in the drainage bag and output a corresponding weight signal;

the drainage adjusting assembly comprises a first pipe rolling mechanism, a second pipe rolling mechanism and a motor device, wherein the first pipe rolling mechanism and the second pipe rolling mechanism are consistent in structure and respectively comprise a concave seat arranged on the front side wall of the placing plate, a revolving wheel limited in the concave seat and capable of rotating, and a roller positioned outside the revolving wheel and capable of revolving along with the revolving wheel and rotating; the two concave seats are distributed at intervals and are respectively provided with a section of arc-shaped side wall, the arc-shaped side walls are superposed with the central shafts of the corresponding revolution wheels, and an arc-shaped gap capable of accommodating the drainage tube is formed between the arc-shaped side walls and the corresponding revolution wheels; the two rollers have the same shape and the same revolution radius; the motor device is connected with the two revolution wheels through a transmission mechanism, and can drive the two rollers to simultaneously perform forward revolution and reverse revolution, and the revolution speeds of the two rollers are always equal; a normal pressure placing groove and a negative pressure placing groove for clamping and fixing the drainage tube are formed in the front side of the placing plate, the normal pressure placing groove can guide the drainage tube to penetrate through an arc-shaped gap of the first tube rolling mechanism, and the negative pressure placing groove can guide the drainage tube to penetrate through two arc-shaped gaps of the first tube rolling mechanism and the second tube rolling mechanism in sequence; in the positive revolution process of each roller, after each roller enters the arc-shaped gap, the drainage tube in the arc-shaped gap can be extruded to a blocking state, and then the drainage tube is rolled all the time through self rotation to move, so that the fluid in the drainage tube is driven to flow towards the direction of the drainage bag until the part of the drainage tube in the arc-shaped gap is restored to a conducting state, and one-time fluid output is completed; the two rollers alternately drive the drainage tube to output fluid in the positive revolution process, so that the fluid in the drainage tube continuously flows towards the drainage bag; when the two rollers are at the initial positions, the roller of the first pipe rolling mechanism is positioned at one side opposite to the arc-shaped gap; the rotation direction which can drive the effusion in the drainage tube to flow from the human body to the drainage bag in the revolution process of the roller is defined as the forward direction, and the reverse direction is vice versa;

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 the drainage mode and the drainage parameters of each drainage and a startup and shutdown instruction into the controller; the drainage mode comprises normal-pressure drainage and negative-pressure drainage, and 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 quantity; 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 control the working state of the motor device, and further can regulate and control revolution starting and stopping, revolution steering and revolution rotating speed of the two rollers; in the negative pressure drainage mode, the controller enables the two rollers to revolve positively, and the revolution starting and stopping and revolution rotating speed of the two rollers are regulated and controlled 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; in the normal-pressure drainage mode, normal-pressure drainage is realized based on a siphon effect, the two rollers are revolved at a lower rotating speed by the controller, the revolution starting and stopping and revolution steering of the two rollers are regulated and controlled based on the real-time drainage speed, the single real-time drainage quantity and preset drainage parameters, and the rollers in the first tube rolling mechanism extrude the drainage tube to different degrees, 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 two rollers to initial positions and then executes shutdown; the revolution start and stop of the two rollers can be manually controlled through a set key, and a display screen is used for displaying palm holding data information in the controller;

2. The multifunctional medical drainage device according to claim 1, wherein: the multifunctional medical drainage device is provided with a remote control device, the remote control device is provided with a wireless transmission module, a display element and an instruction input element, and a control program is preinstalled inside the remote control device; the remote control device and the controller can be in matched connection through the wireless transmission module, and after the remote control device is in matched connection with the controller, the remote control device can realize all functions of a display screen and an operation key.

3. The multifunctional medical drainage device according to claim 1 or 2, wherein: in the ordinary pressure drainage mode, the controller can open and stop, the revolution turns to and regulates and control the revolution of two rolls based on real-time drainage speed, single real-time drainage volume and predetermined drainage parameter, and concrete control process is:

a. according to the preset drainage starting time, the controller regulates and controls revolution starting and stopping and revolution steering of the two rollers, the extrusion degree of the rollers in the first pipe rolling mechanism on the drainage pipe is reduced until the drainage pipe is in a conduction state, and at the moment, each time of drainage can be realized by means of siphon effect, namely, timing drainage is realized;

b. in the drainage process, the controller regulates and controls revolution starting and stopping and revolution steering of the two rollers according to the real-time drainage speed, so that the extrusion degree of the rollers in the first tube rolling mechanism on the drainage tube is increased or reduced until the real-time drainage speed is equal to the preset drainage speed, and 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 controller opened and stopped, the revolution turns to the revolution of two rolls and regulates and control, and the roll in the first pipe rolling mechanism of increase is to the extrusion degree of drainage tube, is extruded to blocking the state until the drainage tube, and this time drainage finishes this moment, realizes quantitative drainage promptly.

4. The multifunctional medical drainage device according to claim 1 or 2, wherein: in the negative pressure drainage mode, the controller can open the revolution of two rolls based on real-time drainage speed, single real-time drainage volume and preset drainage parameter and open and control with the revolution rotational speed, and specific control process is:

a. according to the preset drainage starting time, the controller enables the two rollers to simultaneously revolve forwards, alternately enables the drainage tube to output fluid, and drives accumulated fluid or air in the drainage tube to continuously flow towards the drainage bag, namely, the timed drainage is realized;

b. in the drainage process, the controller increases or decreases the rotating speed of the positive revolution of the two rollers according to the real-time drainage speed until the real-time drainage speed is equal to the preset drainage speed, and then 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 drainage in real time, and after the single real-time drainage amount reaches the preset single drainage amount, the controller stops the revolution of the two rollers, and at the moment, the drainage is finished and the drainage tube is extruded by one roller to keep a cut-off state, so that the quantitative drainage is realized.