CN109331242B

CN109331242B - Full-automatic medical drainage device

Info

Publication number: CN109331242B
Application number: CN201811135024.2A
Authority: CN
Inventors: 程宪永; 巴莹; 冯更; 王才丰
Original assignee: Yangxin Traditional Chinese Medicine Hospital; Binzhou Medical University Hospital
Current assignee: YANGXIN TRADITIONAL CHINESE MEDICINE Hospital; Binzhou Medical University Hospital
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2021-04-27
Anticipated expiration: 2038-09-28
Also published as: CN109331242A; CN112972787A; CN111420138A

Abstract

The invention relates to the field of medical instruments and discloses a full-automatic medical drainage device, which consists of a support component, a weight-counting type suspension support component, a drainage adjusting component, a controller and a power supply component, wherein the weight-counting type suspension support component, the drainage adjusting component, the controller and the power supply component are supported by the support component; the weight-measuring type suspension support assembly can provide support for the drainage bag and feed back a weight signal reflecting the weight change state of the accumulated liquid to the controller; the drainage adjusting component can extrude the drainage tube in different modes to adjust the drainage state; the controller can regulate and control the working state of the drainage regulating component based on the acquired weight signal, a preset drainage mode and drainage parameters; this medical drainage device of full-automatic 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

Full-automatic medical drainage device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a full-automatic medical drainage device capable of automatically controlling a drainage process.

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 full-automatic 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, single drainage speed and other drainage parameters.

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

a fully automatic medical 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 weight-metering type suspension support assembly comprises a weighing rod, a weighing sensor and a suspension part; the middle upper part of the weighing rod is limited by the placing plate, so that the weighing rod extends up and down and cannot rotate around the central shaft; the weighing sensor is supported by the placing plate and is connected with the weighing rod; the hanging part is connected with the lower part of the weighing rod and is used for providing only support for the drainage bag, and the hanging part can be adjusted to be in the up-down position along the weighing rod so as to adjust the height of the drainage bag; after the drainage bag is fixedly connected with the hanging part, 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 concave seat, a central wheel, a first motor and a pipe rolling mechanism; the concave seat is arranged at the front side of the placing plate and is in a column cavity shape, and the bottom of the concave seat is provided with a spindle seat; a main shaft is fixed at the rear side of the central wheel, and the main shaft is matched with the main shaft seat to ensure that the central wheel is positioned in the recess and can only rotate along the central shaft; the central axes of the concave seat and the central wheel are superposed, an annular gap for the drainage tube to spirally extend is formed between the concave seat and the central wheel, an introduction hole and an extraction groove which are respectively communicated with the side wall of the concave seat are arranged on the placing plate, the drainage tube can enter the annular gap through the introduction hole, the drainage tube can extend in the annular gap in a spiral mode for more than one circle and less than two circles and then can be led out from the extraction groove, the cross section of the introduction hole is circular, the cross section of the extraction groove is U-shaped, and a groove opening at the front side of the extraction groove is exposed at the front side of the placing; the first motor is supported by the setting plate and is used for driving the central wheel to rotate; the pipe rolling mechanism consists of a roller, a roller fork and an electric feeding mechanism, and the central shafts of the roller and the central wheel are parallel; the electric feeding mechanism is arranged in the center wheel and rotates along with the center wheel, provides support for the roller fork and can adjust the center distance between the roller and the center wheel; when the roller is positioned at the starting end position, the roller is accommodated in the central wheel, and when the roller is positioned at the terminal end position, the roller extrudes the drainage tube in the annular gap with the side wall of the recess to a blocking state; when the roller is positioned at the terminal position and continuously revolves in the positive direction, the roller moves along the drainage tube in the annular gap after rolling by self rotation, and the fluid in the drainage tube is driven to continuously flow backwards;

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 starting, stopping and rotating speed of the forward revolution of the roller based on the control of the first motor, and can adjust the center distance between the roller and the central wheel based on the control of the electric feeding mechanism; in the negative pressure drainage mode, the controller adjusts the roller to the terminal position, enables the roller to continuously revolve in the positive direction to realize negative pressure drainage, and regulates the start, stop and rotating speed of the positive revolution of the roller on the basis of the real-time drainage speed, the single real-time drainage quantity 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 roller and the side wall of the recess on the drainage 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 roller to the initial end position and then executes shutdown; the display screen is used for displaying the data information held by the palm in the controller;

and the power supply assembly is arranged on the mounting plate, consists of a storage battery and a plurality of voltage transformation modules and is used for providing working current for the elements in the weighing type suspension support assembly, the drainage adjusting assembly and the controller.

The use method and the working principle of the full-automatic medical drainage device are as follows:

the full-automatic medical drainage device is placed on the ground or a platform, the upper end of a drainage bag is fixed on a hanging 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; the drainage tube penetrates through the introduction hole to enter the annular gap, the drainage tube is extended in the annular gap in a spiral mode for more than one circle and less than two circles and then is led out from the leading-out groove, the lower end of the drainage tube is connected with the drainage bag, the height of the drainage bag is adjusted through the hanging part, the part of the drainage tube between the leading-out groove and the drainage bag is in a natural extension state, the front end of the drainage tube is communicated with a chamber to be drained of a patient and is fixed according to the conventional drainage operation, the full-automatic medical drainage device is adjusted to a starting state through a set key, the drainage mode and the drainage parameters are preset in the controller according to clinical requirements through the set key, and at the moment, the early preparation work of the drainage; then, in a negative pressure drainage mode, the controller adjusts the roller to a terminal position, enables the roller to revolve forwards continuously, enables effusion in the drainage tube to flow backwards continuously, enables the effusion to flow into the drainage bag by a human body, and achieves negative pressure drainage, and the controller adjusts starting, stopping and rotating speed of the roller revolving forwards based on real-time drainage speed, single real-time drainage quantity and preset drainage parameters, so that timing drainage, constant-speed drainage and quantitative drainage can be achieved automatically; in the normal pressure drainage mode, can realize the siphon effect based on the siphon effect, the controller is based on real-time drainage speed, single real-time drainage volume and preset drainage parameter, regulates and control the centre-to-centre spacing of roll and centre wheel, and the degree of extrusion of roll and dimple lateral wall to the drainage tube is adjusted to the indirect regulation promptly, can realize regularly drainage, constant speed drainage and ration drainage automatically.

Furthermore, the full-automatic medical drainage device also comprises a clamping piece which can be clamped and fixed on a transfusion rod of the transfusion frame; 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 clamping piece and the combination seat are provided with a connecting mechanism between, and when the clamping piece is connected with the combination seat, the full-automatic medical drainage device can be supported by the infusion rod to work.

The assembly mechanism comprises a T-shaped groove arranged on one side of the assembly seat and a T-shaped rib arranged on the clamping member, the T-shaped groove extends up and down, the upper end of the T-shaped groove is a blind end, the lower end of the T-shaped groove is an open end, the T-shaped rib and the T-shaped groove can be combined, and a damping pad for clamping the T-shaped groove is arranged at the lower end of the T-shaped rib.

Furthermore, a clamping port for accommodating the infusion rod is arranged on one side of the clamping piece, two opposite side walls of the clamping port are respectively provided with a limiting seat, a floating holding block is arranged in each limiting seat, the opposite end parts of the two floating holding blocks are arc-shaped ends, the end surfaces of the two arc-shaped ends are both arc-shaped and are respectively fixed with an anti-skid 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.

This full-automatic medical drainage device has following beneficial effect:

the full-automatic medical 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, drainage speed of each drainage and the like, realizes automatic intelligent drainage with timing, quantification and constant speed, greatly reduces the work burden of medical 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 full-automatic medical drainage device controls the drainage quantity and the drainage speed based on the coordination of the sensing device, the controller and the electric system, and compared with the manual observation and control in the prior art, the full-automatic medical drainage device is more accurate in operation and control, so that the drainage effect is further ensured; the full-automatic medical drainage device realizes the adjustment of the drainage speed and the generation of drainage negative pressure based on the extrusion of different modes of the roller on the drainage tube, ensures the sealing property of a hydrops drainage pipeline, and ensures the absolute isolation, safety and sanitation of the hydrops from the full-automatic medical drainage device; meanwhile, the drainage adjusting assembly adopts scientific and ingenious structural design, the central wheel has the functions of limiting the drainage tube, arranging a tube rolling mechanism and the like, the roller has the 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 the utilization rate of components is exerted to the maximum, so that the structure of the full-automatic medical drainage device is more compact, and the implementation cost is lower; to sum up, this full-automatic medical drainage device uses very conveniently, uses very nimble, and the operation is very simple, its compact structure, design benefit, can reciprocate to circulate and use, and the measurement is accurate, and cost of manufacture and use are lower, and is extremely fit for using widely at medical institution.

Drawings

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

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

FIG. 3 is a schematic structural view of the installation plate of embodiment 1 with a rear portion cut away.

Fig. 4 is a schematic structural diagram of the drainage regulating assembly and the controller in embodiment 1.

FIG. 5 is a schematic view showing the construction of a recess in the drain regulating assembly according to embodiment 1.

Fig. 6 is a schematic structural view of a center wheel and a tube rolling mechanism in embodiment 1.

Fig. 7 is a schematic structural view of the rear side of the center wheel and tube rolling mechanism in embodiment 1.

FIG. 8 is a schematic view showing an initial state of the combination of the drainage regulating assembly and the drainage tube in example 1.

FIG. 9 is a schematic view of the drainage regulating assembly of example 1 in cooperation with a drainage tube in a normal pressure drainage mode.

FIG. 10 is a schematic view of the drainage regulating assembly of example 1 in cooperation with a drainage tube in a negative pressure drainage mode.

Fig. 11 is a schematic view of a clinical use state of the fully automatic medical drainage device in embodiment 1.

Fig. 12 is a control schematic diagram of the fully automatic medical drainage device in the embodiment 1 during operation.

Fig. 13 is a state diagram of the slide shutter at the stroke end in embodiment 2.

Fig. 14 is a state diagram of the slide shutter at the stroke start end in embodiment 2.

Fig. 15 is a schematic diagram of the cooperation of the controller and the remote control device in embodiment 3.

Fig. 16 is a schematic view of a connection structure of the weighing bar and the setting plate in embodiment 4.

FIG. 17 is a schematic view showing the connection of the swing seat, the installation plate and the guide bush in embodiment 4.

FIG. 18 is a schematic view showing a structure in which the installation plate can be combined with the fastener and the pillar via the combination seat in embodiment 5.

FIG. 19 is a schematic view showing the operation of the fully automatic medical drainage device in example 5 in which the support is provided by an infusion rod.

Fig. 20 is a schematic structural diagram of a card firmware in embodiment 5 after further improvement.

FIG. 21 is a schematic view of the embodiment 5 with the clamping member further modified to be combined with the infusion rod.

In the figure, 1, a base, 2, a column, 3, a recess, 4, a central wheel, 5, a roller fork, 6, a placing plate, 7, a roller, 8, a leading-in hole, 9, a display screen, 10, a controller, 11, a setting key, 12, a leading-out groove, 13, a weighing rod, 14, a hanging part, 15, a power supply component, 16, a first motor, 17, a weighing sensor, 18, a sliding sleeve, 19, a spindle seat, 20, a guide groove, 21, a screw rod, 22, a second motor, 23, a guide block, 24, a spindle, 25, a driving wheel, 26, an electric slip ring, 27, a power supply circuit, 28, a control circuit, 29, a drainage tube, 30, a drainage bag, 31, a finger handle, 32, a sliding baffle, 33, a square groove, 34, an elastic component, 35, a guide sleeve, 36, a second rotating shaft, 37, a first rotating shaft, 38, a swinging seat, 39, an angle limiting mechanism, 40, a damping pad, 41, a clamping component, 42 and a T-shaped rib, 43. the device comprises a T-shaped groove, 44, a combined seat, 45, a transfusion rod, 46, an arc-shaped end, 47, an anti-skidding rubber mat, 48, a floating holding block, 49, a sliding groove, 50, a sliding block, 51, a clamping port, 52, a limiting seat, 53 and a return spring.

Detailed Description

Example 1

Referring to fig. 1 and 2, the fully automatic medical drainage device disclosed in this embodiment is composed of a support assembly, a weight-measuring suspension assembly, a drainage adjustment assembly, a controller 10 and a power supply assembly 15;

referring to fig. 1 and 2, the support assembly is composed of a base 1, a column 2 and a setting plate 6, wherein the column 2 is supported by the base 1 and extends in the vertical direction, and the setting plate 6 is supported by the upper end of 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. 2, 3, 11 and 12, the weight-measuring suspension assembly includes a weighing rod 13, a weighing sensor 17 and a suspension portion 14; the middle upper part of the weighing rod 13 is limited by the placing plate 6, so that the weighing rod 13 extends up and down and can not rotate around the central shaft; the weighing sensor 17 is supported by the placing plate 6 and is connected with the weighing rod 13; the hanging part 14 is connected with the lower part of the weighing rod 13 and is used for providing only support for the drainage bag 30, and the hanging part 14 can adjust the up-down position along the weighing rod 13 so as to adjust the height of the drainage bag 30; after the drainage bag 30 is fixedly connected with the hanging part 14, the weighing sensor 17 can pick up the weight change state of the accumulated liquid in the drainage bag 30 and output a corresponding weight signal; after the weight-measuring type suspension support assembly adopts the structure, on one hand, the weight-measuring type suspension support assembly can provide stable support for the drainage bag 30, so that the drainage bag 30 is in a suspension shape and has the basic function of containing drainage effusion in the drainage process, and on the other hand, in the drainage process, the weighing sensor 17 in the weight-measuring type suspension support assembly can output a weight signal reflecting the weight change state of the effusion in the drainage bag 30, and basic data is provided for data processing of the controller 10;

referring to fig. 2, 4, 5, 6, 7 and 8, the drainage regulating assembly includes a recess 3, a center wheel 4, a first motor 16 and a pipe rolling mechanism; the concave seat 3 is arranged at the front side of the placing plate 6 and is in a column cavity shape, and the bottom of the concave seat is provided with a main shaft seat 19; a main shaft 24 is fixed at the rear side of the central wheel 4, and the main shaft 24 is matched with the main shaft seat 19 so that the central wheel 4 is positioned in the recess 3 and can only rotate along the central shaft; the central axes of the concave seat 3 and the central wheel 4 are superposed, an annular gap for the drainage tube 29 to spirally extend is formed between the two central axes, the placing plate 6 is provided with an inlet hole 8 and an outlet groove 12 which are communicated with the side wall of the concave seat 3, the drainage tube 29 can enter the annular gap through the inlet hole 8, and the drainage tube 29 extends more than one circle and less than two circles in the annular gap in a spiral mode and then can be led out from the outlet groove 12; the cross section of the lead-in hole 8 is round, the cross section of the lead-out groove 12 is U-shaped, and the groove opening at the front side of the lead-out groove 12 is exposed at the front side of the setting plate 6, so that the drainage tube 29 can be conveniently taken out of and placed in the lead-out groove 12 at the front side of the setting plate 6; a first motor 16 supported by the resting plate 6, connected to the main shaft 24 for driving the central wheel 4 in rotation; the pipe rolling mechanism consists of a roller 7, a roller fork 5 and an electric feeding mechanism, and the central shafts of the roller 7 and the central wheel 4 are parallel; the electric feeding mechanism is arranged in the center wheel 4 and synchronously rotates along with the center wheel 4, and provides support for the roller fork 5 and can adjust the center distance between the roller 7 and the center wheel 4; after the draft tubes 29 are arranged in the annular gap as shown in fig. 8, when the roller 7 is located at the initial position, the roller 7 is accommodated in the central wheel 4 without pressing the draft tubes 29, and when the roller 7 is located at the final position, the roller 7 presses the draft tubes 29 in the annular gap with the side wall of the recess 3 to the blocking state as shown in fig. 9; as shown in fig. 10, when the roller 7 is at the terminal position and is driven by the central wheel 4 to revolve in the forward direction continuously, the roller 7 will move by rotating and rolling the drainage tube 29 in the annular gap all the time, and drive the fluid in the drainage tube 29 to flow backward continuously, and when the part of the drainage tube 29 rolled by the roller 7 is restored by its own elasticity, negative pressure will be generated to drive the effusion to flow into the drainage tube 29 from the human body, the aforesaid fluid is the effusion or air existing in the drainage tube 29; after the drainage adjusting assembly adopts the structure, the drainage tube 29 is spirally arranged in the annular gap, if the roller 7 is positioned at the terminal position and continuously revolves in the positive direction, the fluid in the drainage tube 29 can continuously flow backwards, so that the negative pressure drainage can be realized, the negative pressure drainage state can be adjusted by adjusting the starting, stopping and rotating speed of the positive revolution of the roller 7, meanwhile, when the normal pressure drainage is carried out through the siphon effect, the center distance between the roller 7 and the central wheel 4 is adjusted through the electric feeding mechanism, and the drainage tube 29 in the annular gap is extruded by the side walls of the roller 7 and the recess 3 to a corresponding degree, so that the normal pressure drainage state can be adjusted; when the roll 7 is located at the start position, it is accommodated in the center wheel 4 without pressing the draft tube 29, so that the roll 7 does not form an obstacle to the combination and separation operation of the annular gap and the draft tube 29 in this state;

as shown in fig. 4 and 12, the controller 10 is fixed on the installation plate 6, and a setting key 11 and a display screen 9 are arranged on the front side of the controller; the setting key 11 is used for inputting a drainage mode, drainage parameters and a startup and shutdown instruction of each drainage into the controller 10, 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 10 can obtain a weight signal continuously fed back by the weighing sensor 17 in real time, and calculate the real-time drainage speed and the single real-time drainage quantity according to the weight signal; the controller 10 can adjust the start, stop and rotation speed of the forward revolution of the roller 7 based on the control of the first motor 16, and the controller 10 can adjust the center distance between the roller 7 and the central wheel 4 based on the control of the electric feeding mechanism; as shown in fig. 10, in the negative pressure drainage mode, the controller 10 adjusts the roller 7 to the terminal position, and makes the roller 7 continuously revolve in the forward direction to realize negative pressure drainage, and the controller 10 regulates and controls the start, stop and rotation speed of the forward revolution of the roller 7 based on the real-time drainage speed, the single real-time drainage quantity and the preset drainage parameters, so as to realize timing drainage, constant-speed drainage and quantitative drainage; as shown in fig. 9, in the normal pressure drainage mode, normal pressure drainage is realized based on a siphon effect, and the controller 10 adjusts the center distance between the roller 7 and the center wheel 4 based on a real-time drainage speed, a single real-time drainage amount and preset drainage parameters, that is, indirectly adjusts the extrusion degree of the roller 7 and the side wall of the recess 3 on the drainage tube 29, so as to realize timing drainage, constant-speed drainage and quantitative drainage; as shown in fig. 8, after receiving the shutdown instruction, the controller 10 first adjusts the roller 7 to the initial position and then performs shutdown, thereby ensuring that the drainage tube 29 can be smoothly separated from the annular gap after the drainage operation is finished, and also ensuring that the drainage tube 29 can be smoothly placed in the annular gap when the full-automatic medical drainage device is used next time; the display screen 9 is used for displaying data information grasped in the controller 10, including information of real-time drainage speed, single real-time drainage quantity, set drainage mode, drainage parameters and the like, and can also display 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 15 is mounted on the mounting plate 6, and is composed of a storage battery and a plurality of voltage transformation modules, and is used for supplying operating current to the weighing suspension assembly, the current-guiding adjustment assembly, and the components in the controller 10; the structure of the power module 15 and its connection to other components are not described in detail since they can be easily implemented using conventional techniques.

referring to fig. 11, the fully automatic medical drainage device is placed on the ground or on a platform, the upper end of the drainage bag 30 is fixed on the hanging part 14, the drainage bag 30 is suspended above the base 1, and if normal pressure drainage is performed, the drainage bag 30 is required to be lower than a drainage source; as shown in fig. 8, a drainage tube 29 passes through an introduction hole 8 to enter an annular gap, the drainage tube 29 extends more than one circle and less than two circles in the annular gap in a spiral manner and is led out from an extraction groove 12, the lower end of the drainage tube 29 is connected with a drainage bag 30, the height of the drainage bag 30 is adjusted by the up-and-down movement of a hanging part 14, the part of the drainage tube 29 between the extraction groove 12 and the drainage bag 30 is in a natural extension state, the front end of the drainage tube 29 is communicated with a chamber to be drained of a patient and is fixed according to the conventional drainage operation, a full-automatic medical drainage device is adjusted to a starting state by a setting key 11, according to the case, a drainage mode and drainage parameters are preset in a controller 10 by the setting key 11, and at this time, the early preparation work of the drainage operation; thereafter, the controller 10 can automatically control the fully automatic medical drainage device based on the real-time drainage speed, the single real-time drainage quantity, the preset drainage mode and the drainage parameters, and the specific regulation and control mode is as follows:

(1) referring to FIGS. 9, 10 and 12, in the normal pressure drainage mode

a. During primary drainage, the controller 10 adjusts the roller 7 to a terminal position, and enables the roller 7 to continuously revolve in the positive direction to enable air or accumulated liquid in the drainage tube 29 to continuously flow backwards, when the weighing sensor 17 senses weight change, it is indicated that partial accumulated liquid enters the drainage bag 30, then the controller 10 enables the roller 7 to stop revolving in the positive direction, and adjusts the center distance between the roller 7 and the central wheel 4 to enable the drainage tube 29 to keep a conduction state, at the moment, primary drainage is started, and normal-pressure drainage can be normally carried out by means of a siphon effect; in each drainage, the controller 10 adjusts the center distance between the roller 7 and the central wheel 4 according to the preset initial time of each drainage, so that the drainage tube 29 is in a conduction state, namely, the timed drainage is realized;

b. in the drainage process, the controller 10 adjusts the extrusion degree of the rollers 7 and the side walls of the recess 3 on the drainage tube 29 according to the real-time drainage speed, so that the effusion speed in the drainage tube 29 is increased or reduced, and finally the real-time drainage speed is approximately equal to the preset drainage speed, namely, constant-speed drainage is realized;

c. in the drainage process, the controller 10 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 10 adjusts the center distance between the roller 7 and the central wheel 4, so that the roller 7 extrudes the drainage tube 29 to a blocking state, and the quantitative drainage is realized when the drainage is finished;

(2) referring to fig. 10 and 12, in the negative pressure drainage mode

a. According to the preset drainage starting time, the controller 10 adjusts the roller 7 to the terminal position, and enables the roller 7 to revolve forwards continuously to promote air or effusion in the drainage tube 29 to flow backwards continuously, namely, the timed drainage is realized;

b. in the drainage process, the controller 10 adjusts the rotating speed of the positive revolution of the roller 7 according to the real-time drainage speed, so that the flow speed of the accumulated liquid in the drainage tube 29 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 10 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 10 stops the forward revolution of the roller 7, the drainage is finished at the moment, and the drainage tube 29 is still extruded by the static roller 7 to keep a cut-off state, so that the quantitative drainage is realized.

Referring to fig. 2, in the fully automatic medical drainage device, a weighing rod 13 is limited by a placing plate 6, extends up and down and cannot rotate around a central shaft, and the weighing rod 13 is connected with a weighing sensor 17; the weighing rod 13 is used for providing support for the hanging part 14 and ensuring that the hanging part 14 cannot rotate relative to the placing plate 6, so that the hanging part 14 can provide stable support for the drainage bag 30, and inaccurate weighing caused by rotation or shaking of the drainage bag 30 in the drainage process is avoided, and is used for transmitting the weight change of accumulated liquid in the drainage bag 30 to the weighing sensor 17; based on the above-mentioned setting intention of weighing rod 13, the cooperation structure of weighing rod 13, mounting plate 6 and weighing sensor 17 three adopts prior art to have multiple implementation mode, for example can adopt following structure:

as shown in fig. 3, the placing plate 6 is provided with a sliding sleeve 18, an inner cavity with an open lower end and a blind upper end is arranged in the sliding sleeve 18, the middle upper part of the weighing rod 13 is positioned in the sliding sleeve 18 and the two can only slide up and down relatively, and the weighing sensor 17 is fixed in the sliding sleeve 18 to provide upward support for the weighing rod 13; therefore, the weighing rod 13 is limited by the sliding sleeve 18, and can only float up and down in a small range without rotating, so that the technical requirement of providing support for the suspension part 14 can be met, and meanwhile, when the weighing rod 13 is in a vertical state, the downward acting force generated by the weighing rod 13 tends to be completely applied to the weighing sensor 17, namely, the technical requirement of transmitting the weight change of the accumulated liquid in the drainage bag 30 to the weighing sensor 17 can be met.

Referring to fig. 1 and 11, in the fully automatic medical drainage device, a hanging part 14 is connected with the lower part of a weighing rod 13 and is used for providing only support for a drainage bag 30; on one hand, the hanging part 14 needs to provide stable support for the drainage bag 30 to prevent the drainage bag 30 from rotating during drainage, and generally, the existing drainage bag 30 usually has a hanging ring for hanging; on the other hand, the hanging part 14 can adjust the vertical position along the weighing rod 13 so as to adjust the height of the drainage bag 30, so that after the drainage bag 30, the drainage tube 29 and the full-automatic medical drainage device are combined, the part of the drainage tube 29 between the drainage groove 12 and the drainage bag 30 can be adjusted to be in a natural extension shape, and the acting force between the drainage tube 29 and the drainage bag 30 tends to be constant; based on this, the suspension portion 14 can be implemented with the following structure:

as shown in fig. 4, the lower end of the hanging part 14 is provided with a hook which can be matched with the hanging ring of the drainage bag 30, and in order to prevent the hanging ring and the hanging part 14 from rotating relatively, the hook at the lower end of the hanging part 14 is preferably made by bending a lath-shaped material; the upper end of the suspension part 14 and the lower end of the weighing rod 13 can adopt a plug-in type axial telescopic structure, and a locking mechanism for locking the relative positions of the suspension part and the weighing rod is arranged between the suspension part and the weighing rod.

Referring to fig. 10, in the fully automatic medical drainage device, the roller 7 is indirectly mounted on the central wheel 4 so as to be driven by the central wheel 4 to revolve, the revolution direction of the roller 7 is consistent with the rotation direction of the central wheel 4 and has two forms, the roller 7 can drive the fluid in the drainage tube 29 to flow from the front to the back only in a specific revolution direction, so that the "forward direction" in the forward revolution appearing in the foregoing description is only one rotation direction set for convenience of description, and the revolution direction in which the fluid in the drainage tube 29 can be driven by the human body to flow to the drainage bag 30 during the revolution of the roller 7 is defined as the forward direction; in the specific implementation process, the relative position of the drainage tube 29 and the roller 7 is not limited to a specific one, and the actual revolving direction required by the roller 7 to drive the effusion in the drainage tube 29 to flow from the human body to the drainage bag 30 is influenced by the relative position of the drainage tube 29 and the roller 7, so that the actual turning direction of the forward revolution of the roller 7 is not necessarily the same in different embodiments.

Referring to fig. 4, 5 and 11, in the fully automatic medical drainage device, an introduction hole 8 and an extraction groove 12 communicated with the side wall of the recess 3 are formed on the mounting plate 6; on one hand, the introducing hole 8 and the leading-out groove 12 are used for guiding the drainage tube 29 to smoothly enter the annular gap and be led out from the annular gap, so that the drainage tube 29 is favorably spirally extended in the annular gap in a specific mode, and the phenomenon that the bending part of the drainage tube 29 forms a dead bend to increase the tube resistance is avoided; on the other hand, the introducing hole 8 and the leading-out groove 12 exert certain clamping and fixing effects on the drainage tube 29, so that the drainage tube 29 is prevented from moving under the action of the roller 7, and the matching stability of the annular gap internal drainage tube 29 and the roller 7 is improved;

in addition, as shown in fig. 4, in the fully automatic medical drainage device, there are technical features that the cross section of the inlet hole 8 is circular, and the front side notch of the outlet groove 12 is exposed to the front side of the installation plate 6, which are intended to improve the integrity of the sidewall of the recess 3 to the maximum extent under the condition that the drainage tube 29 can be introduced into and extracted from the annular gap, so as to ensure that the roller 7 can exert a stable squeezing effect on the drainage tube 29 in the annular gap with the sidewall of the recess 3 when rotating to any position, and on the other hand, to reduce the difficulty of disassembling and assembling the drainage tube 29 and the inlet hole 8, the annular gap, and the outlet groove 12 when satisfying the aforesaid effects.

Referring to fig. 8, in the fully automatic medical drainage device, the drainage tube 29 extends more than one turn and less than two turns in a spiral manner in the annular gap, wherein the term "more than one turn" means that the drainage tube 29 in the annular gap is continuously extruded when the roller 7 continuously revolves in the positive direction during the negative pressure drainage process, and the extrusion action on the whole drainage tube 29 is not interrupted, thereby ensuring that the fluid in the drainage tube 29 continuously flows backwards and simultaneously avoiding the backflow of the fluid in the drainage tube 29, and the term "less than two turns" means that the drainage tube 29 is prevented from excessively spiraling in the annular gap, on one hand, the whole resistance of the drainage tube 29 is prevented from being increased, and on the other hand, the dimensions of the annular gap, the central wheel 4 and the roller 7 in the front-back direction are effectively reduced, so that the above components are more compact in structure;

if the roller is not arranged, in the negative pressure drainage process, the change of the relative position of the roller 7 and the drainage tube 29 in the continuous positive revolution process can cause the flow velocity of the effusion in the drainage tube 29 to generate certain change, but the change of the flow velocity is not obvious and does not influence the actual clinical drainage effect; meanwhile, the problem of non-uniform flow rate can be alleviated by means of adding a buffer container on the drainage tube 29.

Referring to fig. 9, when the fully automatic medical drainage device is used clinically, in the negative pressure drainage process, the drainage tube 29 needs to provide necessary pressure for the negative pressure drainage by means of its own elastic capacity, generally speaking, the drainage tube 29 used clinically at present has better elasticity, and in the initial stage of the negative pressure drainage, the elastic performance of the drainage tube 29 is optimal to meet the aforementioned negative pressure requirement, but as the number of times of extrusion increases, the elastic performance of the drainage tube 29 located in the annular gap is weakened, and the maximum negative pressure provided by means of its own elastic capacity is reduced; however, in the use process of the full-automatic medical drainage device, the drainage device can be placed at a position lower than the patient, in addition, the drainage adjusting component acts on the middle lower part of the drainage tube 29, the gravitational potential energy of effusion in the drainage tube 29 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 29 in the annular gap is weakened, enough negative pressure can be still provided for negative pressure drainage.

Referring to fig. 11 and 12, in the clinical use of the fully automatic medical drainage device, the weight of the drainage bag 30 and the accumulated fluid therein is almost borne by the hanging portion 14, that is, almost the entire weight of the drainage bag 30 and the accumulated fluid therein is finally transmitted to the weighing sensor 17 through the weighing rod 13, the weights of the weighing rod 13, the hanging portion 14 and the drainage bag 30 after installation are constant during the drainage, so that the weight change sensed by the weighing sensor 17 is caused by the increase of the accumulated fluid in the drainage bag 30, so that the controller 10 can calculate the weight change speed of the accumulated fluid in the drainage bag 30, that is, the real-time drainage speed, according to the weight signal continuously fed back by the weighing sensor 17 during the drainage, so as to calculate the accumulated weight increase of the accumulated fluid in the drainage bag 30 during the period from the beginning of the drainage to the present time, namely, the single real-time drainage amount, therefore, the technical requirement that the controller 10 can calculate the real-time drainage speed and the single real-time drainage amount based on the weight signal continuously fed back by the weighing sensor 17 in real time can be realized by adopting the prior art;

if the drainage bag is not placed, the drainage bag 30 is fixedly connected with the tail end of the drainage tube 29 in the drainage process, the drainage tube 29 inevitably generates certain acting force on the drainage bag 30, and the acting force can be changed along with the deformation of the drainage bag 30, 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 fully automatic medical drainage device, before clinical drainage is implemented, the height of the drainage bag 30 can be adjusted through the hanging part 14, so that the part of the drainage tube 29 between the leading-out groove 12 and the drainage bag 30 is in a natural extension state, thereby reducing the acting force of the lower end of the drainage tube 29 on the drainage bag 30 and reducing the influence of the acting force on the data accuracy of the real-time drainage speed and the single real-time drainage quantity.

Referring to fig. 3, 11 and 12, in the fully automatic medical drainage device, the weighing sensor 17 can pick up the change state of the weight of the accumulated liquid in the drainage bag 30, and output a weight signal according to the change state to provide a data basis for the controller 10 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 17 is a key factor influencing whether the fully automatic medical drainage device can accurately control the drainage process; the structure and functions of the weighing sensor 17, the weighing rod 13 and the hanging part 14 can be regarded as a conventional weighing mechanism, and as is well known, the weighing mechanism can stably and accurately work only in a specific direction, namely, the accuracy of a weight signal output by the weighing sensor 17 can be ensured only when the full-automatic medical drainage device is horizontally placed, otherwise, the gravity generated by accumulated liquid in the drainage bag 30 is decomposed, and the weight signal output by the weighing sensor 17 is inaccurate; generally speaking, with the gradual improvement of ward conditions of medical units, the ground in the ward is smoother and tends to be horizontal, so when the fully-automatic 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 a retransmission sensor can be ensured to be more accurate;

step by step, even if the ground in the ward does not meet the requirement of tending to the level, the full-automatic medical drainage device can be horizontally placed by adjusting in a mode of arranging articles below the base 1, and the accuracy of the weight signal output by the retransmission sensor in the clinical drainage process is ensured.

Referring to fig. 7, 10 and 12, in the fully automatic medical drainage device, the controller 10 can adjust the start, stop and rotation speed of the positive revolution of the roller 7 based on the control of the first motor 16, as for the prior art, the first motor 16 can be a servo motor, the output shaft of the servo motor is in transmission connection with the spindle 24 of the central wheel 4, the start, stop and rotation speed of the positive revolution of the roller 7 are directly determined by the working state of the servo motor, and the application of the control of the working state of the servo motor by the controller 10 is very common and mature, so that the technical features mentioned above are implemented without difficulty.

Referring to fig. 4 and 9, in the fully automatic medical drainage device, the controller 10 can adjust the center distance between the roller 7 and the center wheel 4 based on the control of the electric feeding mechanism, and the electric feeding mechanism has various embodiments in terms of the prior art, such as the following embodiments:

as shown in fig. 6, the electric feeding mechanism is composed of a guide block 23, a screw 21 and a second motor 22; the guide block 23 is limited by the guide groove 20 in the center wheel 4, the guide block 23 is fixedly connected with the roller fork 5, the guide block 23 and the screw rod 21 are in threaded fit to form a screw rod mechanism, the second motor 22 is used for driving the screw rod 21 to rotate, and the working state of the second motor is regulated and controlled by the controller 10; when the screw 21 rotates, the guide block 23 will move along the guide groove 20 and drive the roller fork 5 to move therewith; therefore, when the controller 10 enables the output shaft of the second motor 22 to rotate in different directions, the guide block 23 can carry the roller 7 to be far away from or close to the central wheel 4, and the technical purpose of adjusting the center distance between the roller 7 and the central wheel 4 is achieved; meanwhile, since the guide block 23 is defined by the guide groove 20 and the lead screw 21, the lead screw mechanism formed by the guide block 23 and the lead screw 21 has a self-locking characteristic, so that stable support can be provided for the roller fork 5 and the roller 7, namely, when the second motor 22 is not operated, the center distance between the roller 7 and the center wheel 4 is not changed.

Referring to fig. 2, 4 and 9, in the fully automatic medical drainage device, the controller 10 can adjust the center distance between the roller 7 and the center wheel 4 based on the control of the electric feeding mechanism, and this technical feature implies two necessary requirements, on one hand, the electric feeding mechanism needs to be powered and operated, and on the other hand, the electric feeding mechanism and the controller 10 need to have a signal transmission function, but there is a problem that the electric feeding mechanism is installed in the center wheel 4 and can rotate synchronously with the center wheel 4, such as it is not feasible to directly and simply connect the electric feeding mechanism with the controller 10 and the power supply assembly 15 through a circuit; the technical requirement of supplying power to the electric feeding mechanism can be solved by means of arranging a battery in the central wheel 4, and the technical requirement of being capable of transmitting signals between the electric feeding mechanism and the controller 10 can be solved by means of arranging a wireless transmission module between the electric feeding mechanism and the controller 10; meanwhile, the solution to the above problem is preferably performed as follows:

as shown in fig. 5 and 7, the spindle 24 is a hollow structure, and the rear end thereof passes through the spindle seat 19 and extends to the rear side of the installation plate 6; a driving wheel 25 is positioned at the rear side of the placing plate 6 and is coaxially and fixedly connected with the main shaft 24, and the driving wheel 25 is in transmission connection with the first motor 16; an electric slip ring 26 is fixed at the rear side of the setting plate 6, the rotor of the electric slip ring is coaxially and fixedly connected with the tail end of the main shaft 24, and a power supply circuit 27 and a control circuit 28 of the electric feeding mechanism are respectively connected with the power supply assembly 15 and the controller 10 through the electric slip ring 26; thus, the electric power feeding mechanism can be supplied with electric power from the power supply unit 15 through the power supply line 27, and can receive the control signal output from the controller 10 through the control line 28, which is more inexpensive to implement.

The full-automatic 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 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 full-automatic medical drainage device is matched with the conventional drainage bag 30 and the drainage tube 29 for use, and the existing structures of the drainage bag 30 and the drainage tube 29 are not required to be changed, so that the full-automatic medical drainage device is easier to popularize and use; the full-automatic medical 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 full-automatic medical 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. 4 and 8, in the fully automatic medical drainage device disclosed in the foregoing embodiment, the cross section of the introduction hole 8 is circular to ensure the integrity of the side wall of the recess 3 to the maximum extent, and based on the circular hole structure adopted by the introduction hole 8, when the drainage tube 29 is introduced into the annular gap, the tail end of the drainage tube 29 needs to pass through the introduction hole 8 from front to back, which is not convenient enough; for this reason, the present embodiment is based on embodiment 1, and has the following modifications to the installation plate 6:

as shown in fig. 13 and 14, the setting plate 6 is provided with a square groove 33 on the front side wall for completely exposing the introducing hole 8, and a sliding baffle 32 with a moving stroke is defined in the square groove 33; when the slide shutter 32 is located at the beginning of its stroke, it blocks the front side of the introduction hole 8 and can compress the drainage tube 29 in the introduction hole 8; when the slide baffle 32 is positioned at the stroke end, the introducing hole 8 is completely exposed through the square groove 33, and the drainage tube 29 can be taken from the introducing hole 8 and placed from the front side of the placing plate 6; an elastic component 34 for driving the sliding baffle 32 to automatically reset to the stroke starting end is arranged between the sliding baffle 32 and the setting plate 6; the sliding baffle 32 and the placing plate 6 are provided with finger handles 31 which are convenient for manually driving the sliding baffle 32 to move towards the stroke terminal;

based on the above improved structure, as shown in fig. 13, the sliding baffle 32 is driven by fingers to overcome the elastic force of the elastic component 34 and move to the end of the stroke, at this time, the introducing hole 8 is completely exposed through the square groove 33, and the drainage tube 29 can be conveniently and quickly taken out from the introducing hole 8 from the front side of the placing plate 6; as shown in fig. 14, after the finger handle 31 is released, the sliding baffle 32 is automatically reset to the stroke beginning end under the driving of the elastic component 34, the front side of the introducing hole 8 is blocked, and meanwhile, the drainage tube 29 in the introducing hole 8 is pressed tightly, so that the drainage tube 29 in the introducing hole 8 is firmly fixed, and the side wall of the recess 3 is ensured to be complete.

Example 3

Referring to fig. 11, when the fully automatic medical drainage device disclosed in the foregoing embodiment is used in clinical practice, the specific installation position is determined by the position of the patient and the arrangement manner of the drainage assembly, and the position is often not conducive to the operation of presetting parameters and the like by an operator through an operation key, or not conducive to the operation of knowing the drainage state by observing the display screen 9, thereby bringing certain inconvenience to the clinical drainage operation; in order to solve the defect, the present embodiment is further improved based on the structure of the fully automatic medical drainage device disclosed in the previous embodiment, and the specific structure is as follows:

as shown in fig. 15, the fully automatic medical drainage device is equipped with a remote control device, the remote control device is equipped with a wireless transmission module, a display element and an instruction input element, and is pre-installed with a control program inside, the controller 10 is integrated with a wireless transmission module, the remote control device and the controller 10 can be connected in a matching manner through the wireless transmission module, and when the remote control device and the controller 10 are connected in a matching manner, the remote control device can realize all functions of the display screen 9 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 full-automatic medical drainage device, thereby bringing great convenience to clinical operation;

when aforementioned technical characteristics are implemented, wireless transmission module can adopt wifi module or bluetooth mode, and present smart mobile phone prevalence is high and mostly possesses wifi module and bluetooth mode, consequently can act as remote control unit behind the preinstalled control program in smart mobile phone for this technical characteristics is implemented more conveniently, implements the cost cheaper.

Example 4

Referring to fig. 3 and 11, in the fully automatic medical drainage device disclosed in embodiment 1, it has been clarified that the accuracy of the weighing signal output by the weighing sensor 17 is greatly influenced by whether the fully automatic medical 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 further has the following improvements on the structural basis of the full-automatic medical drainage device disclosed in the embodiment 1:

as shown in fig. 16 and 17, a first rotating shaft 37 extending horizontally and backwards is fixed at the rear side of the setting plate 6, and a swinging seat 38 is fixed through the first rotating shaft 37 and can swing left and right with a small amplitude; the upper end of a guide sleeve 35 is connected with a swinging seat 38 through a second rotating shaft 36, so that the guide sleeve 35 can swing back and forth in a small range; the first rotating shaft 37 and the second rotating shaft 36 are perpendicular to each other; the middle upper part of the weighing rod 13 is limited by a guide sleeve 35 and is connected with a weighing sensor 17 fixed in the guide sleeve 35; after the drainage bag 30 is fixed by the hanging part 14, the weighing sensor 17, the weighing rod 13, the hanging part 14 and the drainage bag 30 are driven by gravity to always maintain a specific direction, and the weighing sensor 17 can accurately pick up the weight change state of accumulated liquid in the drainage bag 30 in the specific direction;

after the fully automatic medical drainage device is structurally improved, a weighing mechanism consisting of the weighing sensor 17, the weighing rod 13 and the hanging part 14 has an automatic direction adjusting mechanism, and even if the fully automatic medical drainage device is not horizontally placed in clinical use, the weighing sensor 17, the weighing rod 13, the hanging part 14 and the drainage bag 30 can automatically adjust to and maintain in a specific direction through left-right swinging and front-back swinging along with the guide sleeve 35, so that the weighing sensor 17 stably and accurately works;

in the improved structure, the swinging seat 38 can swing left and right with small amplitude, the guide sleeve 35 can swing front and back with small amplitude, the front and back swing and the left and right swing are both small amplitude, the change of the relative position of the mounting plate 6 and the weight-measuring suspension assembly is limited within a small range, and the inconvenience brought to the operation of mounting, carrying and the like of the full-automatic medical drainage device due to the unstable relative position of the mounting plate 6 and the weight-measuring suspension assembly is avoided; the specific swing angle range of the small amplitude has no accurate requirement, and the aim is to ensure that the full-automatic medical drainage device can stably and accurately work under most ground conditions;

meanwhile, the guide sleeve 35 and the swinging seat 38 can only swing back and forth and left and right within a small range respectively, and the technical requirements can be easily met by arranging corresponding angle limiting mechanisms 39 between the guide sleeve 35 and the swinging seat 38 and between the swinging seat 38 and the placing plate 6;

for the technical requirement that the weighing sensor 17, the weighing rod 13, the hanging part 14 and the drainage bag 30 are driven by gravity to be automatically adjusted to and maintained in a specific direction, when the full-automatic medical drainage device is manufactured, the relative positions and the specific structural forms of the weighing sensor 17, the weighing rod 13 and the hanging part 14 are debugged, and a standard operation mode is set for the connection mode of the hanging part 14 and the drainage bag 30, so that the technical requirement is realized without difficulty; the specific direction refers to that the weighing sensor 17, the weighing rod 13, the hanging part 14 and the drainage bag 30 are downward in the direction, and the weighing sensor 17 can accurately pick up the weight change state of accumulated liquid in the drainage bag 30.

Example 5

Referring to fig. 1 and 11, 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 fully automatic medical drainage device needs to be frequently moved back and forth between wards and instrument rooms; when the full-automatic medical drainage device is clinically used, the whole device can be stably supported by the base 1, the base 1 is necessarily large and heavy, the full-automatic medical drainage device is difficult to move integrally and is influenced by the base 1, the whole volume of the full-automatic medical drainage device is large, the occupied space is large when the full-automatic medical 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 full-automatic medical drainage device can be used with the infusion support after removing a heavy base 1 part, 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 fig. 18 and 19, the fully automatic medical drainage device further includes a clamping member 41 capable of being clamped and fixed on the infusion rod 45 of the infusion support; a combined seat 44 is arranged at the rear side of the placing plate 6, and the combined seat 44 is connected with the upper end of the upright post 2 in a detachable way; an assembling mechanism is arranged between the clamping member 41 and the combined seat 44, and when the clamping member 41 is connected with the combined seat 44, the full-automatic medical drainage device can be supported by the infusion rod 45 to work; the combined seat 44 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. 19, in clinical use, the fully automatic medical drainage device can work in cooperation with an infusion support commonly provided in a ward without depending on the support provided by the base 1, so that the fully automatic medical drainage device is more convenient to move, more flexible to use and more convenient and faster to operate.

In the above improved structure, the fastening member 41 and the combination seat 44 can be connected by means of the assembling mechanism, in order to ensure that the fastening member 41 can provide sufficient and stable support for the fully automatic medical 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 41 and the combination seat 44 are combined, the assembling mechanism preferably adopts the following design, and the specific structure is as follows:

as shown in fig. 18, the assembling mechanism is composed of a T-shaped groove 43 disposed on one side of the combining seat 44 and a T-shaped rib 42 disposed on the clamping member 41, the T-shaped groove 43 extends vertically, the upper end is a blind end, the lower end is an open end, the T-shaped rib 42 and the T-shaped groove 43 can be combined, and the lower end of the T-shaped rib 42 is provided with a damping pad 40 for clamping the T-shaped groove 43;

based on the above structure adopted by the assembly mechanism, the T-shaped rib 42 of the clamping member 41 is inserted into the T-shaped groove 43 of the combined base 44 from bottom to top, so that the assembly of the combined base 44 and the clamping member 41 is completed, otherwise, the combined base 44 and the clamping member 41 can be separated; when the T-shaped rib 42 and the T-shaped groove 43 are completely combined, the damping pad 40 tightly clamps the T-shaped groove 43 to lock the relative position of the T-shaped rib 42 and the T-shaped groove 43, thereby preventing the clamping member 41 from being separated from the combination seat 44.

In the foregoing improved structure, the fastening member 41 is used for being matched with the infusion rod 45 in a clamping manner to provide a stable support for the full-automatic medical drainage device, and as for the prior art, the fastening member 41 has various implementation manners, for example, a clamping mechanism for clamping the infusion rod 45 may be disposed on the fastening member 41, or a C-shaped clamp may be disposed on the fastening member 41, fastening screws are additionally disposed on the clamping mechanism and the C-shaped clamp, and an anti-slip gasket is additionally disposed on a contact surface with the infusion rod 45 to improve the stability of the combination of the fastening member 41 and the infusion rod 45; although the clamping piece 41 can meet the basic technical requirement of providing support for the full-automatic medical 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 45 are the same, but no exception exists, and the implementation structure adopted by the clamping member 41 is difficult to be compatible with the infusion rods 45 with different sizes for use, and certain limitation is certainly formed in clinical use; therefore, the present embodiment also proposes a novel implementation manner for the card fixing member 41, and the specific structure is as follows:

as shown in fig. 20 and 21, a clamping opening 51 for accommodating the infusion rod 45 is formed in one side of the clamping member 41, two opposite side walls of the clamping opening 51 are respectively provided with a limiting seat 52, a floating holding block 48 is respectively arranged in the limiting seat 52, opposite end portions of the two floating holding blocks 48 are arc-shaped ends 46, end surfaces of the two arc-shaped ends 46 are both arc-shaped and are respectively fixed with an anti-skid rubber pad 47, and the two arc-shaped ends 46 are respectively used for holding two sides of the infusion rod 45; the floating holding block 48 and the limiting seat 52 are matched through a guide mechanism formed by the sliding groove 49 and the sliding block 50, so that the floating holding block 48 has an oblique floating stroke, when the two floating holding blocks 48 move upwards along respective floating strokes simultaneously, the two arc-shaped ends 46 gradually approach and enter the clamping opening 51, and when the two floating holding blocks 48 move downwards along respective floating strokes simultaneously, the two arc-shaped ends 46 gradually separate and finally retract into the corresponding limiting seats 52; the two limiting seats 52 are respectively provided with a return spring 53 which drives the corresponding floating holding block 48 to return to the uppermost end of the floating stroke;

as shown in fig. 21, after the clamping member 41 adopts the above structure, after the clamping port 51 of the clamping member 41 is clamped outside the infusion rod 45, the two floating clasping blocks 48 can clamp and clasp the infusion rod 45 from two opposite sides of the infusion rod 45, the weight of the full-automatic medical drainage device can generate a downward acting force on the clamping member 41, and the two floating clasping blocks 48 can respectively receive horizontal component forces to further clasp the infusion rod 45, in short, the larger the weight borne by the clamping member 41 is, the firmer the two floating clasping blocks 48 clasp the infusion rod 45 is, so that the clamping member 41 and the infusion rod 45 can be prevented from moving relative to each other, and the stability after the clamping member 41 and the infusion rod 45 are combined can be improved;

meanwhile, because the two floating holding blocks 48 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 45, the applicability of the clamping member 41 is improved to a certain extent, and the clamping member can be matched with various transfusion rods 45 with different diameters for use.

Claims

1. A full-automatic medical drainage device, its characterized in that, it includes:

the power supply assembly is arranged on the mounting plate, consists of a storage battery and a plurality of voltage transformation modules and is used for providing working current for the elements in the weight-measuring type suspension support assembly, the drainage adjusting assembly and the controller;

the clamping and fixing piece can be clamped and fixed on a transfusion rod of the transfusion stand; 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 clamping piece and the combined seat are provided with an assembling mechanism, and after the clamping piece is connected with the combined seat, the full-automatic medical drainage device can be supported by the infusion 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 fully automatic medical drainage device of claim 1, wherein: the assembling mechanism is composed of a T-shaped groove arranged on one side of the combined seat and a T-shaped rib arranged on the clamping and fixing piece, the T-shaped groove extends up and down, the upper end of the T-shaped groove is a blind end, the lower end of the T-shaped groove is an open end, the T-shaped rib and the T-shaped groove can be combined, and a damping pad used for clamping the T-shaped groove is arranged at the lower end of the T-shaped rib.

3. The fully automatic medical drainage device of claim 1, wherein: under the normal pressure drainage mode, the controller carries out automatic control's specific regulation and control mode to full-automatic medical drainage device based on real-time drainage speed, single real-time drainage volume and preset drainage parameter and does:

a. when the primary drainage is performed, the controller adjusts the roller to the terminal position, enables the roller to revolve forwards continuously to enable air or accumulated liquid in the drainage tube to flow backwards continuously, when the weighing sensor senses weight change, the controller enables the roller to stop revolving forwards, adjusts the center distance between the roller and the center wheel, enables the drainage tube to be kept in a conduction state, starts the primary drainage at the moment, and enables normal-pressure drainage to be performed normally by means of siphon effect; in each drainage, the controller adjusts the center distance between the roller and the center wheel according to the preset initial time of each drainage so as to enable the drainage tube to be in a conduction state, namely, the timed drainage is realized;

b. in the drainage process, the controller adjusts the extrusion degree of the roller and the side wall of the concave seat 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 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 centre-to-centre spacing of roll and centre wheel was adjusted to the controller, makes the roll extrude the drainage tube to the state of blocking, and this time drainage finishes this moment, realizes quantitative drainage promptly.

4. The fully automatic medical drainage device of claim 1, wherein: under the negative pressure drainage mode, the controller carries out automatic control's specific regulation and control mode to full-automatic medical drainage device based on real-time drainage speed, single real-time drainage volume and preset drainage parameter and does:

a. according to the preset drainage starting time, the controller adjusts the roller to the terminal position, and enables the roller to revolve forwards continuously to promote air or effusion in the drainage pipe to flow backwards continuously, so that the timed drainage is realized;

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

c. in the drainage process, the controller calculates the single real-time drainage amount from the initial drainage to the current drainage in real time, after the single real-time drainage amount reaches the preset single drainage amount, the controller enables the roller to stop positive revolution, the drainage is finished at the moment, and the drainage tube is still extruded by the static roller at the moment to keep a cut-off state, so that quantitative drainage is realized.