CN109331246B

CN109331246B - Medical drainage device

Info

Publication number: CN109331246B
Application number: CN201811135030.8A
Authority: CN
Inventors: 黄恒艺; 韦伟民; 胡春格; 王才丰
Original assignee: Individual
Current assignee: Hu Chunge; Huang Hengyi; Wei Weimin
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2021-04-30
Anticipated expiration: 2038-09-28
Also published as: CN109331246A; CN111939338A; CN113171500A

Abstract

The invention relates to the field of medical instruments and discloses a medical drainage device which comprises a weighing type base assembly, a suspension support assembly, a mounting seat assembly, a flow velocity adjusting mechanism and a negative pressure drainage mechanism, wherein the weighing type base assembly is arranged on the suspension support assembly; the weighing type base assembly can feed back a weight signal to the controller; the mounting seat component is internally provided with a mounting groove which can clamp and fix the middle lower part of the drainage tube; the flow velocity adjusting component can extrude the drainage tube to different degrees under the control of the controller so as to achieve the purpose of adjusting the flow velocity of fluid in the drainage tube; the negative pressure drainage mechanism can sequentially drive the drainage tube to output fluid under the control of the controller so as to realize negative pressure drainage. This 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

Medical drainage device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical drainage device for draining clinical effusion.

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 medical drainage device which adopts an intelligent design, can realize normal-pressure drainage and negative-pressure drainage by matching with the existing drainage bag and a drainage tube, and can automatically control each drainage process according to preset drainage 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 medical drainage device, comprising:

the weighing type base assembly is formed by sequentially matching a weighing platform, a weighing sensor and a base up and down, and the weighing sensor outputs a weighing signal capable of reflecting the weight of an object above the weighing platform;

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

the placing seat assembly comprises a placing plate and a telescopic rod; the placing plate is supported by the telescopic rod and is positioned above the suspension supporting beam, and the upper and lower positions of the placing plate can be adjusted and locked; the telescopic rod is positioned at the rear side of the upright rod, and the lower end of the telescopic rod is fixedly connected with the base; a placing groove used for clamping and fixing the middle lower part of the drainage tube is arranged on the front side of the placing plate;

the flow velocity adjusting mechanism consists of a fixed clamping block fixed on the front side of the placing plate, a movable clamping block limited by a guide rail and capable of being far away from and close to the fixed clamping block, and a driving device for driving the movable clamping block to move along the guide rail; the drainage tube is clamped in the placing groove and then passes through the fixed clamping block and the movable clamping block, and the movable clamping block and the fixed clamping block can extrude the drainage tube passing through the fixed clamping block and the movable clamping block to different degrees, so that the aim of adjusting the flow rate of accumulated liquid in the drainage tube is fulfilled; when the movable clamping block is at the initial position, the movable clamping block and the fixed clamping block do not extrude the drainage tube;

the negative pressure drainage mechanism comprises a concave seat arranged at the front side of the placing plate, a section of arc-shaped side wall is arranged in the concave seat, a revolution wheel which is overlapped with the central shaft of the arc-shaped side wall is arranged in the concave seat, an arc-shaped gap for accommodating the drainage tube is formed between the arc-shaped side wall and the revolution wheel, the drainage tube passes through the arc-shaped gap after being clamped and fixed in the placing groove, and the revolution wheel is driven by a power device fixed on the placing plate to rotate in a single direction; a roller which is positioned at the outer side of the revolution wheel and is parallel to the central shaft of the revolution wheel is fixed on the revolution wheel, and the roller revolves along with the revolution wheel and can rotate; after the roller enters the arc-shaped gap every time in the revolution process, the roller revolves by rotating and rolling the drainage tube in the arc-shaped gap all the time, so that the fluid in the drainage tube is forced to move backwards until the roller moves out of the other end of the arc-shaped gap, and thus, the fluid is output once, and the drainage tube rolled by the roller generates negative pressure at the front end of the drainage tube in the process of recovering the original shape by elasticity; when the roller is at the initial position, the roller does not extrude the drainage tube;

the controller is fixed on the placing plate, and a setting key, a display screen and an on-off key are arranged on the front side of the controller; the drainage mode and the drainage parameters of each drainage can be preset in the controller through a setting key, 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 amount; the controller can acquire a weighing signal continuously fed back by the weighing sensor in real time, and the real-time drainage speed and the single real-time drainage quantity are calculated according to the weighing signal; the controller can adjust the extrusion state of the drainage tube by the movable clamping block through the driving device; the controller can control the revolution state of the roller through the power device and reset the roller to the initial position when the revolution of the roller is stopped each time; in the normal-pressure drainage process, the controller adjusts the extrusion state of the movable clamping block on the drainage tube based on the real-time drainage speed, the single real-time drainage quantity and the preset drainage parameters, so that the timed drainage, the constant-speed drainage and the quantitative drainage are realized; in the negative pressure drainage process, the controller enables the roller to revolve continuously to drive the drainage tube to output fluid in a successive discontinuous mode, the movable clamping block extrudes the drainage tube to a blocking state to prevent the fluid in the drainage tube from flowing back in the discontinuous period of two adjacent fluid outputs, and therefore negative pressure drainage is achieved; the controller can be used for starting and shutting down according to an instruction input by the on-off key, and the controller resets the movable clamping block to an initial position before shutting down each time; the display screen is used for displaying the palm holding data information of the controller and the working state of the medical drainage device;

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 weighing sensor, the driving device, the power device and the controller.

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

placing the medical drainage device on the ground or a platform lower than a patient, fixing the drainage bag on the lower side of the suspension beam through a clamp, and suspending the drainage bag above the weighing table; the middle-lower part of the drainage tube is clamped in the placing groove, the drainage tube is ensured to pass through arc gaps formed between the movable clamping block and the fixed clamping block and between the arc-shaped side wall and the revolution wheel, the lower end of the drainage tube is connected with the drainage bag, the height of the placing plate is adjusted, the part of the drainage tube, which is positioned between the placing plate and the drainage bag, is in a natural stretching state, the front end of the drainage tube is communicated with a cavity to be drained of a patient and is fixed according to the conventional drainage operation, the medical drainage device is adjusted to a starting state through an on-off key, the drainage mode and the drainage parameters are preset in a controller by using a set key according to clinical requirements, and at the moment, the early preparation work of the drainage operation is completed; afterwards, the controller can adjust and control the extrusion state of the movable clamping block on the drainage tube and the revolution state of the roller based on the real-time drainage speed, the single real-time drainage quantity, the preset drainage mode and the drainage parameters, and the fixed-time drainage, the fixed-speed drainage and the quantitative drainage in the corresponding modes are realized.

Furthermore, the medical drainage device also comprises two clamping pieces with the same structure, and the clamping pieces are provided with a first bayonet and a second bayonet which are positioned on the same side, so that the clamping pieces are integrally E-shaped; the telescopic rod is provided with two clamping parts which are distributed up and down, the first bayonet is used for being clamped outside the clamping parts so that the clamping piece and the telescopic rod are kept relatively fixed in the vertical direction, and the second bayonet is used for being clamped outside the infusion rod so that the clamping piece and the infusion rod are kept relatively fixed in the vertical direction; therefore, the telescopic rod and the infusion rod can be fixed in the vertical direction by two clamping pieces and keep parallel; the base is composed of a main supporting seat and a combined block which can be disassembled and assembled, a locking mechanism for locking the combined state of the main supporting seat and the combined block is arranged between the main supporting seat and the combined block, the weighing platform, the weighing sensor and the telescopic rod are matched and connected with the combined block, and a concave receiving groove which is formed by sinking is arranged on the main supporting seat and is used for receiving the two clamping and fixing pieces.

Furthermore, the first bayonet of the clamping piece and the clamping part of the telescopic rod are respectively provided with an adsorption magnetic sheet, and when the first bayonet and the clamping part are combined, the two adsorption magnetic sheets are connected together in an adsorption manner; the side wall of the second bayonet is uniformly provided with a plurality of guide grooves, a plurality of floating fixture blocks are limited by the guide grooves and have a floating stroke, when the floating fixture blocks are positioned at the initial end of the floating stroke, the outer ends of the floating fixture blocks extend into the second bayonet, and when the floating fixture blocks are positioned at the terminal end of the floating stroke, the outer ends of the floating fixture blocks retract into the guide grooves and are not positioned in the second bayonet; push magnetic sheets are respectively arranged between the floating fixture blocks and the corresponding guide grooves, and the two push magnetic sheets can drive the floating fixture blocks to reset to the initial ends of the floating strokes by virtue of repulsive force; the outer end of the floating fixture block is an arc-shaped surface and is used for clamping the transfusion rod, and a rubber pad used for improving the friction resistance is fixed on the arc-shaped surface.

This medical drainage device has following beneficial effect:

the drainage device adopts an intelligent design, can be used by being matched with the conventional drainage component clinically, can be compatible with two working modes of normal-pressure drainage and negative-pressure drainage, can automatically control the whole drainage operation according to preset drainage parameters after presetting drainage parameters such as initial time of each drainage, single drainage quantity, drainage speed of each drainage and the like, realizes automatic intelligent drainage with timing, quantification and constant speed, greatly lightens the work burden of medical workers because human interference is not needed in the drainage process, avoids the situation that the drainage cannot be carried out according to an expected mode due to negligence or improper operation, improves the safety and stability of the clinical liquid drainage operation, and fully ensures the drainage effect; the medical drainage device controls the drainage quantity and the drainage speed based on the coordination of the sensing device, the controller, the driving device and the power device, and compared with the manual observation and control in the prior art, the medical drainage device is more accurate in operation and control, so that the drainage effect is further ensured; in clinical application, the medical drainage device is combined with the existing drainage component more flexibly, can be combined and separated at any time according to clinical needs, and is flexible and quick to use; in the whole drainage process, the accumulated liquid is isolated from the medical drainage device in the whole process, and other connecting pieces do not need to be additionally arranged in the drainage assembly, so that the sealing performance of a drainage pipeline is ensured, and the medical drainage device is safe and sanitary; in conclusion, the 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 drainage device for chinese medicine according to embodiment 1.

Fig. 2 is a second schematic view of the overall structure of the drainage device for chinese medicine in example 1.

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

Fig. 4 is a schematic structural diagram of the seat assembly, the flow rate adjusting mechanism, the negative pressure drainage mechanism and the controller in embodiment 1.

Fig. 5 is a schematic view of the combination of the drainage device, the drainage tube and the drainage bag for chinese medicine in example 1.

Fig. 6 is a schematic diagram illustrating the operation of the drainage device for chinese medicine according to example 1.

Fig. 7 is a schematic view of the cooperation between the flow rate adjusting mechanism and the negative pressure drainage mechanism in the initial position and the drainage tube in embodiment 1.

FIG. 8 is a schematic diagram of the flow rate regulating mechanism for regulating the flow rate of accumulated liquid in the drainage tube in the normal pressure drainage mode in the embodiment 1.

Fig. 9 is a schematic diagram of the negative pressure drainage mechanism urging the drainage tube to perform fluid output in the negative pressure drainage mode in embodiment 1.

Fig. 10 is a schematic diagram of the flow rate adjusting mechanism preventing the backflow of the fluid in the drain tube in the negative pressure drainage mode in embodiment 1.

Fig. 11 is a schematic structural view of the drainage device for chinese medicine according to embodiment 1 when the telescopic rod is completely contracted.

Fig. 12 is a schematic view of the engagement between the driving device and the movable clamping block in embodiment 2.

FIG. 13 is a schematic view showing the fitting of the flow rate adjusting mechanism to the drainage tube when the fixing clamp block is located at the beginning of the stroke in example 3.

FIG. 14 is a schematic view showing the fitting of the flow rate adjusting mechanism to the drainage tube when the fixing block is located at the end of the stroke in example 3.

Fig. 15 is a schematic view of a fitting structure of a roll and a runner in embodiment 4.

FIG. 16 is a schematic view showing the connection of the load cell to the controller and power supply in example 5.

Fig. 17 is a schematic view of the entire structure of the drainage device for chinese medicine according to embodiment 6.

Fig. 18 is an exploded view of the drainage device for chinese medical science in example 6.

FIG. 19 is a schematic view showing a state in which the drainage device for TCM of example 6 is used in cooperation with an infusion rod.

Fig. 20 is a partially broken-away schematic view of the card holder according to embodiment 6.

In the figure, 1, a base, 2, a weighing platform, 3, a telescopic rod, 4, an upright rod, 5, a clamp, 6, a suspension beam, 7, an arc gap, 8, a switch key, 9, a setting key, 10, a controller, 11, a display screen, 12, a placing plate, 13, a fixed clamping block, 14, a movable clamping block, 15, a driving device, 16, a power supply component, 17, a power device, 18, a concave seat, 19, a roller, 20, a common wheel, 21, a placing groove, 22, a positioning bolt, 23, a weighing sensor, 24, an arc side wall, 25, a straight section, 26, a guide rail, 27, a drainage tube, 28, a drainage bag, 29, a crank arm, 30, an arc part, 31, a screw hole, 32, a lead screw, 33, a motor, 34, a trigger, 35, a V-shaped elastic sheet, 36, a sliding groove, 37, a roller fork, 38, a tensioning pin, 39, a tensioning spring, 40, a radial hole, 41, a threading cavity, 42, a cable, 43 and a telescopic section, 44. the device comprises a containing groove 45, a clamping and fixing piece 46, an adsorption magnetic sheet 47, a clamping and fixing part 48, a locking mechanism 49, a first bayonet 50, a second bayonet 51, an infusion rod 52, a pushing magnetic sheet 53, a guide groove 54, a floating clamping block 55, a rubber cushion 101, a combined block 102 and a main support seat.

Detailed Description

Example 1

Referring to fig. 1 and 2, the medical drainage device disclosed in this embodiment is composed of several parts, namely, a weighing-type base assembly, a suspension assembly, a setting seat assembly, a flow rate adjusting mechanism, a negative pressure drainage mechanism, a controller 10 and a power supply assembly 16;

referring to fig. 1 and 3, the weighing type base assembly is formed by sequentially matching a weighing platform 2, a weighing sensor 23 and a base 1 up and down, and the weighing sensor 23 outputs a weighing signal capable of reflecting the weight of an object above the weighing platform 2;

as shown in fig. 1, 5 and 6, the suspension assembly comprises an upright rod 4 and a suspension beam 6, the lower end of the upright rod 4 is fixedly connected with the weighing platform 2, the upper end of the upright rod 4 is fixedly connected with the middle part of the suspension beam 6, the suspension beam 6 is provided with a clamp 5 for clamping the top of the drainage bag 28, and the suspension assembly is used for suspending the drainage bag 28 right above the weighing platform 2 to ensure that the weight of the drainage bag 28 and the accumulated liquid in the drainage bag tend to be completely and indirectly fed back to the weighing sensor 23;

referring to fig. 1, 2 and 5, the seat assembly includes a seat plate 12 and an expansion rod 3; the placing plate 12 is supported by the telescopic rod 3 and is positioned above the suspension supporting beam 6, the placing plate 12 can be adjusted in the vertical position and locked based on the extension and retraction of the telescopic rod 3, the telescopic rod 3 is positioned at the rear side of the upright rod 4, and the lower end of the telescopic rod 3 is fixedly connected with the base 1; a placing groove 21 for clamping and fixing the middle lower part of the drainage tube 27 is formed in the front side of the placing plate 12, and the cross section of the placing groove 21 is U-shaped;

as shown in fig. 4, 7 and 8, the flow rate adjusting mechanism is composed of a fixed clamping block 13, a movable clamping block 14 and a driving device 15, the fixed clamping block 13 is fixed on the front side of the setting plate 12, and the movable clamping block 14 is limited by a guide rail 26 and can move away from and close to the fixed clamping block 13; after the middle lower part of the drainage tube 27 is clamped in the placing groove 21, the drainage tube 27 passing through the fixed clamping block 13 and the movable clamping block 14 can be extruded by different degrees by the movable clamping block 14 and the fixed clamping block 13 through moving positions, so that the purpose of adjusting the flow rate of accumulated liquid in the drainage tube 27 is realized; the driving device 15 is used for driving the movable clamping block 14 to move along the guide rail 26; as shown in fig. 7, when the movable clamping block 14 is located at the initial position, the movable clamping block is far away from the fixed clamping block 13, and at this time, the movable clamping block 14 and the fixed clamping block 13 do not extrude the drainage tube 27 passing between the movable clamping block and the fixed clamping block, and in this state, the drainage tube 27 can be smoothly combined with and separated from the flow rate adjusting mechanism;

as shown in fig. 4 and 7, the negative pressure drainage mechanism is composed of a concave seat 18, a revolving wheel 20, a roller 19 and a power device 17; the concave seat 18 is arranged at the front side of the placing plate 12 and is formed by inwards sinking the front end face of the placing plate 12, and a section of arc-shaped side wall is arranged in the concave seat, namely an arc-shaped side wall 24; the revolution wheel 20 is rotatably arranged in the recess 18 and is superposed with the central axes of the arc-shaped side wall 24, an arc-shaped gap 7 capable of accommodating the drainage tube 27 is formed between the arc-shaped side wall 24 and the revolution wheel 20, and the drainage tube 27 passes through the arc-shaped gap 7 after being clamped in the placing groove 21; the power device 17 is arranged on the setting plate 12 and is used for driving the revolving wheel 20 to rotate in a single direction, namely to rotate in a constant direction all the time, and the transmission mode of the power device 17 and the revolving wheel 20 has various embodiments, for example, the transmission mode can be realized by adopting gears, belts, worm-gear mechanisms and the like; the roller 19 is arranged on the revolution wheel 20 and positioned at the outer side of the revolution wheel 20, the central axes of the roller 19 and the revolution wheel 20 are parallel, and the roller 19 revolves along with the revolution wheel 20 and can rotate; as shown in fig. 9, after entering the arc gap 7 each time during the revolution of the roller 19, it presses the draft tube 27 in the arc gap 7 to the side of the arc sidewall 24, and will roll the draft tube 27 all the time by rotating to revolve, so that the effusion or air in the draft tube 27 is forced to move backward until the roller 19 moves out from the other end of the arc gap 7, and from this, one fluid output is completed; in the process of fluid output, the rolled drainage tube 27 recovers the original shape by the elasticity of the tube to generate negative pressure at the front end of the drainage tube 27, and the effusion in the body of the patient is driven to be sucked into the drainage tube 27; therefore, when the roller 19 continuously revolves, the drainage tube 27 intermittently outputs fluid one by one, and the drainage speed can be adjusted by controlling the revolution speed of the roller 19; as shown in fig. 7, when the roller 19 is located at the initial position, it is located at the opposite side of the arc-shaped sidewall 24, so that it does not squeeze the drainage tube 27, and in this state, the drainage tube 27 can be smoothly combined with and separated from the negative pressure drainage mechanism;

as shown in fig. 4, 6 and 7, the controller 10 is fixed on the installation plate 12, and the front side of the controller is provided with a setting key 9, a display screen 11 and a switch key 8; the drainage mode and the drainage parameters of each drainage can be preset in the controller 10 through the setting key 9, the drainage mode comprises a normal-pressure drainage mode and a negative-pressure drainage mode, 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 amount; the controller 10 can obtain a weighing signal continuously fed back by the weighing sensor 23 in real time, and calculate the real-time drainage speed and the single real-time drainage quantity according to the weighing signal; as shown in fig. 8, the controller 10 can adjust the position of the movable clamping block 14 through the driving device 15, so as to control the squeezing state of the drainage tube 27 by the movable clamping block 14; as shown in fig. 9, the controller 10 can adjust the revolution state of the roller 19 by adjusting the power device 17 and reset the roller 19 to the initial position each time the revolution is stopped, wherein the revolution state includes the start, stop and rotation speed of the revolution; as shown in fig. 8, in the normal pressure drainage process, the effusion realizes drainage by means of siphon action, and the controller 10 adjusts the extrusion state of the movable clamp splice 14 to the drainage tube 27 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. 9 and 10, in the negative pressure drainage process, the controller 10 makes the roller 19 revolve continuously to drive the drainage tube 27 to output fluid successively and intermittently, and makes the movable clamping block 14 extrude the drainage tube 27 to a blocking state to prevent the fluid in the drainage tube 27 from flowing back during the intermittent period of two adjacent fluid outputs, so as to implement negative pressure drainage, and the controller 10 regulates and controls the revolution state of the roller 19 and the extrusion state of the movable clamping block 14 on the drainage tube 27 based on the real-time drainage speed, the single real-time drainage amount and the preset drainage parameters, so as to implement timing drainage, constant-speed drainage and quantitative drainage; the controller 10 can be started and shut down according to the instruction input by the on-off key 8, and the controller 10 resets the movable clamping block 14 to the initial position before each shutdown, so as to ensure that the drainage tube 27 can be smoothly separated from the flow rate adjusting mechanism after the shutdown, and simultaneously ensure that the drainage tube 27 can be smoothly combined with the flow rate adjusting mechanism when the drainage tube is used next time; the display screen 11 is used for displaying data information grasped in the controller 10 and a working state of the medical drainage device, the data information includes a preset drainage mode, drainage parameters, electric quantity, time information and the like, and the working state includes states of starting, in-process, pause, ending and the like of drainage operation, so that an operator can know the progress condition of the drainage operation in real time;

referring to fig. 4 and 6, the power supply module 16 is mounted on the mounting plate 12, and is composed of a storage battery and a plurality of voltage transformation modules, and is used for supplying operating current to the weighing sensor 23, the driving device 15, the power device 17 and the controller 10; the structure of the power module 16 and its connection to other components is readily accomplished using conventional techniques and is not described in detail.

as shown in fig. 5 and 7, the medical drainage device is placed on the ground or a platform lower than a patient, the drainage bag 28 is fixed on the lower side of the suspension beam 6 through two clamps 5, and the drainage bag 28 is suspended above the weighing platform 2; when the medical drainage device does not work, the movable clamping block 14 and the roller 19 are both positioned at the initial position, at the moment, the middle lower part of the drainage tube 27 can be smoothly clamped into the placing groove 21 and sequentially pass through the arc-shaped gaps 7 between the movable clamping block 14 and the fixed clamping block 13 and between the arc-shaped side wall 24 and the revolving wheel 20, the lower end of the drainage tube 27 is connected with the drainage bag 28, the height of the placing plate 12 is adjusted, the part of the drainage tube 27 positioned between the placing plate 12 and the drainage bag 28 is in a natural extension state, and the front end of the drainage tube 27 is communicated with a cavity to be drained of a patient and is fixed according to the conventional drainage operation; the medical drainage device is adjusted to be in a starting state through the switch key 8, and the drainage mode and the drainage parameters are preset in the controller 10 by the setting key 9 according to clinical requirements, so that the early preparation work of drainage operation is completed; thereafter, as shown in fig. 6, the controller 10 can perform coordination control on the flow rate adjusting mechanism and the negative pressure drainage mechanism based on the real-time drainage rate, the single real-time drainage amount, and the preset drainage mode and drainage parameters, and the specific control mode is as follows:

(1) referring to fig. 6, 9 and 10, in the negative pressure drainage mode, the controller 10 enables the flow rate adjusting mechanism and the negative pressure drainage mechanism to work cooperatively to realize negative pressure drainage, that is, the controller 10 enables the roller 19 to revolve continuously to drive the drainage tube 27 to output fluid successively and discontinuously, during the fluid output period, the controller 10 enables the movable clamping block 14 not to extrude the drainage tube 27 to form extrusion to ensure the smoothness of the drainage tube 27, and during the two adjacent fluid output intermittence periods, the controller 10 enables the movable clamping block 14 to extrude the drainage tube 27 to a blocking state to prevent the fluid in the drainage tube 27 from flowing back;

a. according to the preset drainage starting time, the controller 10 enables the flow rate adjusting mechanism and the negative pressure drainage mechanism to work in a matching way, so that the effusion is forced to be drained from the human body to the drainage bag 28, and the timed drainage is realized; in the initial stage of the primary drainage, although the fluid in the drainage tube 27 may be air, the drainage tube 27 can exhaust the air when outputting the fluid, and then the drainage of the accumulated fluid is smoothly performed;

b. in the drainage process, the controller 10 adjusts the revolution speed of the roller 19 according to the real-time drainage speed, so that the average flow velocity of the accumulated liquid in the drainage tube 27 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 time to the current time of the drainage in real time, when the single real-time drainage amount reaches the preset single drainage amount, the controller 10 stops the revolution of the roller 19 and resets to the initial position, and simultaneously the movable clamping block 14 extrudes the drainage tube 27 to a blocking state, and at the moment, the drainage is finished, so that the quantitative drainage is realized;

(2) referring to fig. 6, 9 and 10, in the normal pressure drainage mode, before the initial drainage, the controller 10 makes the flow rate adjusting mechanism and the negative pressure drainage mechanism work in a negative pressure drainage mode, that is, the controller 10 makes the roller 19 revolve continuously to drive the drainage tube 27 to output fluid successively and intermittently, during the intermittent period of two adjacent fluid outputs, the controller 10 makes the movable clamp block 14 press the drainage tube 27 to a blocking state to prevent the fluid in the drainage tube 27 from flowing back, thereby discharging the air in the drainage tube 27 to provide trigger pressure for siphon effect, when the weighing signal changes, it indicates that a part of effusion enters the drainage bag 28, at this time, the roller 19 stops revolving and resets to an initial position, the movable clamp block 14 presses the drainage tube 27 to the blocking state, and at this time, the drainage tube 27 has the effusion potential energy requirement for realizing normal pressure drainage, thereafter, as shown in fig. 8;

a. according to the preset drainage starting time, the controller 10 adjusts the extrusion state of the movable clamping block 14 on the drainage tube 27 to enable the drainage tube 27 to keep a conduction state, and accumulated liquid drainage can be realized by means of a siphon effect due to the accumulated liquid in the drainage tube 27, namely, timing drainage is realized;

b. in the drainage process, the controller 10 adjusts the extrusion state of the movable clamping block 14 on the drainage tube 27 according to the real-time drainage speed, so that the fluid speed in the drainage tube 27 is increased or decreased, 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 volume of the initial to present arrival of this drainage in real time, and when the single real-time drainage volume reached preset single drainage volume, the controller 10 adjusts the extrusion state of the movable clamping block 14 to the drainage tube 27, finally makes the drainage tube 27 be in the state of blocking, and this time of drainage is over, realizes quantitative drainage promptly.

Referring to fig. 1 and 3, in the medical drainage device, the weighing type base assembly is used for directly or indirectly providing support for other parts on one hand, and is used for feeding back a weighing signal of the weight of an object above the weighing platform 2 to the controller 10 through the weighing sensor 23 on the other hand; based on the technical purpose, the specific matching structure of the weighing platform 2, the weighing sensor 23 and the base 1 can be implemented by referring to the structure of the existing electronic scale, specifically, the weighing platform 2 is limited by the base 1 and has a certain up-and-down floating stroke, but the weighing platform and the base cannot be completely separated, the weighing sensor 23 is arranged between the weighing platform 2 and the base 1, the weighing sensor 23 provides support for the weighing platform 2 in the vertical direction, and a weighing signal output by the weighing sensor 23 changes along with the pressure applied to the weighing platform 2 by the weighing platform.

Referring to fig. 1 and 6, in the medical drainage device, the controller 10 can obtain a weighing signal continuously fed back by the weighing sensor 23 in real time, which is characterized in that the prior art has various embodiments, for example, a wireless transmission module capable of performing data transmission can be arranged between the weighing sensor 23 and the controller 10, or a circuit for transmitting data can be arranged between the weighing sensor 23 and the controller 10; meanwhile, the load cell 23 is supplied with operating current by the power supply module 16, and a wire may be provided between the load cell and the power supply module to meet the technical requirements of current transmission.

Referring to fig. 1 and 2, in the medical drainage device, the installation plate 12 can be adjusted in the vertical direction and locked based on the extension and retraction of the telescopic rod 3, based on the technical requirement, the telescopic rod 3 adopts the existing plug-in type structure, and meanwhile, the telescopic rod 3 is provided with the positioning bolt 22 capable of locking the length of the telescopic rod, so that the technical purpose can be achieved.

Referring to fig. 4, 5 and 7, in the medical drainage device, a placing groove 21 for clamping and fixing the middle lower part of the drainage tube 27 is formed in the front side of the placing plate 12; on one hand, the arrangement groove 21 has a good isolation effect on the middle upper part of the drainage tube 27 and the drainage bag 28, so that external force interference on the drainage bag 28 caused by unstable factors such as shaking of the middle upper part of the drainage tube 27 is effectively avoided, and the data accuracy and stability of the real-time drainage speed and the single real-time drainage quantity are improved; on the other hand, the arrangement groove 21 guides the trend of the drainage tube 27, so that the drainage tube 27 can smoothly pass through the flow rate adjusting mechanism and the negative pressure drainage mechanism, the overlarge resistance of an inner tube of the drainage tube 27 is avoided, meanwhile, the arrangement groove 21 provides a good fixing effect for the middle lower part of the drainage tube 27, and the drainage tube 27 is more stably matched with the flow rate adjusting mechanism and the negative pressure drainage mechanism;

in addition, as shown in fig. 4, in order to improve the clamping effect of the placement groove 21 on the drainage tube 27 and improve the matching stability of the drainage tube 27 and the flow rate adjusting mechanism, the placement groove 21 adopts a curved design, that is, the placement groove 21 integrally extends in a curved manner from top to bottom and at least comprises a straight line section 25, and the fixed clamping block 13 and the movable clamping block 14 are respectively placed on two sides of the straight line section 25.

Referring to fig. 5 and 8, in the medical drainage device, the movable clamping block 14 can move along the guide rail 26 and can extrude the drainage tube 27 between the movable clamping block and the fixed clamping block 13 to different degrees, so as to achieve the purpose of adjusting the flow rate of fluid in the drainage tube 27, and therefore, the moving stroke of the movable clamping block 14 can meet the technical requirements of two aspects; on one hand, the movable clamping block 14 can approach the fixed clamping block 13 to press the drainage tube 27 to a blocking state, in which the drainage tube 27 and the drainage bag 28 are not communicated, and the drainage is in a stopping state; on the other hand, when the movable clamping block 14 is at the initial position, the movable clamping block and the fixed clamping block 13 do not extrude the drainage tube 27, the maximum drainage speed can be realized in the state, and meanwhile, the state also meets the operation requirements of combination and separation between the drainage tube 27 and the flow speed adjusting mechanism; it will be appreciated by those skilled in the art that the above technical requirements can be met, and the specific range of the moving stroke of the movable clamping block 14 can be easily determined by adjusting during the manufacturing process of the medical drainage device.

Referring to fig. 5 and 9, when the 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 elastic capacity of the drainage tube 27, generally speaking, the drainage tube 27 used clinically at present has better elasticity, and in the initial use stage, the elastic performance of the drainage tube 27 is optimal, so that the negative pressure requirement required in the negative pressure drainage can be met, but as the extrusion times increase, the elastic performance of the drainage tube 27 located in the arc-shaped gap 7 is weakened, and the negative pressure provided by means of the elastic capacity of the drainage tube 27 is reduced; however, when the medical drainage device is used, the medical drainage device can be placed at a position lower than a patient, in addition, the negative pressure drainage mechanism acts on the middle lower part of the drainage tube 27, the gravitational potential energy of accumulated liquid in the drainage tube 27 can relieve the required negative pressure requirement in the drainage process, in this case, the additionally provided negative pressure is small, and even if the elasticity of the drainage tube 27 is weakened, enough necessary negative pressure can be still provided for negative pressure drainage.

Referring to fig. 5 and 6, in the clinical use process of the medical drainage device, the weight of the drainage bag 28 and the effusion inside the drainage bag is almost completely supported by the suspension beam 6, that is, the total weight of the drainage bag 28 and the effusion inside the drainage bag is finally applied to the weighing sensor 23, the weights of the weighing table 2, the upright stanchions 4, the suspension beam 6 and the drainage bag 28 after installation are constant and unchangeable in the drainage process, so that the change of the weighing signal output by the weighing sensor 23 is almost completely caused by the increase of the effusion in the drainage bag 28, the controller 10 can calculate the weight of the effusion in the drainage bag 28 in unit time, that is, the real-time drainage speed according to the change state of the weighing signal in the drainage process, and can calculate the weight of the effusion in the drainage bag 28 increased from the beginning of the drainage to the present period, that is, the single real-time drainage; therefore, the controller 10 can calculate the corresponding real-time drainage speed and single real-time drainage quantity based on the change state of the real-time weighing signal, which can be realized by adopting the prior art;

if the drainage bag is not placed, as shown in fig. 5, in the drainage process, the upper end of the drainage bag 28 is connected with the lower end of the drainage tube 27, the drainage tube 27 inevitably generates a certain acting force on the drainage bag 28, and the acting force may change along with the deformation of the drainage bag 28, so that a certain influence is brought to the data accuracy of the real-time drainage speed and the single real-time drainage quantity; however, in the medical drainage device, the setting plate 12 is supported by the telescopic rod 3, the height of the setting plate can be adjusted and locked, and after the drainage bag 28, the drainage tube 27 and the medical drainage device are combined, the height of the setting plate 12 is adjusted to enable the part of the drainage tube 27, which is positioned between the setting plate 12 and the drainage bag 28, to be in a natural extension state, so that the acting force of the lower end of the drainage tube 27 on the drainage bag 28 can be reduced, and the influence on the data accuracy of the real-time drainage speed and the single real-time drainage quantity is reduced.

Referring to fig. 9 and 10, when the medical drainage device is used clinically, in a negative pressure drainage mode, the controller 10 can adjust the revolution speed of the roller 19 according to the real-time drainage speed to realize constant-speed drainage; however, there is a problem that in the negative pressure drainage mode, the drainage tube 27 outputs the fluid in a successive and discontinuous manner, that is, the accumulated fluid is drained in a pulse manner, and the weight of the accumulated fluid in the drainage bag 28 is changed in a step manner, so that when the controller 10 calculates the real-time drainage speed through the weighing signal, the unit time based on which the real-time drainage speed is calculated is not too short, and should be at least longer than the time required by one revolution of the roller 19;

meanwhile, the average drainage speed can be calculated by the weight of the drainage liquid drained in a period of time to serve as the real-time drainage speed, and if the controller 10 calculates the real-time drainage speed by adopting the method, the drainage effect is not obviously influenced.

Referring to fig. 6, 7 and 9, in the medical drainage device, the controller 10 can adjust the revolution state of the roller 19 by adjusting the working state of the power device 17 and make the roller 19 return to the initial position each time the revolution is stopped, for the above technical requirement, the power device 17 can be composed of a servo motor and a speed reducer, and for the existing electromechanical control technology, the controller 10 is adopted to adjust the working state of the servo motor, so that the technical purpose is achieved without difficulty.

Referring to fig. 1, 2 and 5, in the medical drainage device, the up-and-down position of the setting plate 12 is adjustable and lockable, on one hand, the distance between the setting plate 12 and the drainage bag 28 is adjustable during clinical use, the effect achieved has been explained in the foregoing, on the other hand, when the medical drainage device is carried or not in use, the setting plate 12 and the components supported by the setting plate can move downwards, the volume of the whole device is reduced, and in order to make the technical effect more prominent, as shown in fig. 11, a section of bow-shaped part 30 which is concave towards the rear side can be arranged in the middle of the suspension beam 6, the upper end of the upright post 4 is fixedly connected with the bow-shaped part 30, the upper end of the telescopic rod 3 is connected with a crank arm 29, the other end of the crank arm 29 is fixedly connected with the top of the rear side of the setting plate 12, when the telescopic rod 3 is in the shortest state, the setting plate 12 is located in the inner space, therefore, when the medical drainage device is not used, the placing plate 12 can move downwards to the maximum extent, so that the volume of the medical drainage device is further reduced;

meanwhile, due to the existence of the arch part 30 in the suspension beam 6, after the drainage tube 27 is connected with the drainage bag 28, the suspension beam 6 does not form an obstacle to the vertical extension of the tail section part of the drainage tube 27, the tail section part of the drainage tube 27 can be connected with the drainage bag 28 in a state of tending to natural extension, the acting force generated on the drainage bag 28 is reduced, and in addition, the connection and separation operation of the lower end of the drainage tube 27 and the drainage bag 28 is more convenient and smooth.

The 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, thereby achieving the purpose of intelligent automatic drainage control, reducing the labor burden and improving the safety, stability and accuracy of the drainage operation; the medical drainage device is matched with the conventional drainage bag 28 and the drainage tube 27 for use, and the existing structures of the drainage bag 28 and the drainage tube 27 are not required to be changed, so that the medical drainage device is easier to popularize and use; the medical drainage device has two working modes of normal pressure drainage and negative pressure drainage, can meet different drainage operation requirements such as pleural effusion drainage and abdominal effusion drainage, has stronger applicability and wider application range, and has greater clinical popularization value.

Example 2

In the medical drainage device disclosed in embodiment 1, as shown in fig. 8, the driving device 15 can drive the movable clamping block 14 to move according to the control of the controller 10 to adjust the squeezing state of the drainage tube 27 by the movable clamping block 14, and as for the technical characteristics, the driving device 15 has various embodiments according to the prior art, but in order to make the structure of the driving device 15 more simple and compact and the position adjustment of the movable clamping block 14 more precise, the embodiment provides a driving device 15 with simple structure and stable operation, and the specific implementation structure thereof is as follows:

referring to fig. 12, the driving device 15 includes a motor 33 fixed on the mounting plate 12, an output shaft of the motor 33 is coaxially connected with a lead screw 32, the movable clamping block 14 is provided with a screw hole 31, the movable clamping block 14 is matched with the lead screw 32 through the screw hole 31 to form a lead screw mechanism, the motor 33 drives the lead screw 32 to rotate to drive the movable clamping block 14 to move along the guide rail 26, and the start-stop state of the motor 33 and the rotation direction of the output shaft are controlled by the controller 10;

therefore, the starting and stopping state of the motor 33 and the steering of the output shaft are controlled based on the controller 10, so that different driving effects can be generated on the movable clamping block 14, and the technical purpose of adjusting the position of the movable clamping block 14 is finally realized; in this embodiment, the motor 33 drives the movable clamping block 14 to displace through the lead screw mechanism, and the movable clamping block 14 is used as a part of the lead screw mechanism, so that the structure of the driving device 15 is greatly simplified, and the working stability of the driving device 15 is ensured; meanwhile, in terms of the current technology, the technology of using the controller 10 to control the start-stop state of the motor 33 and the steering of the output shaft is very mature and widely applied.

Example 3

Referring to fig. 8 and 10, in clinical use of the medical drainage device disclosed in embodiment 1, after each suspension and termination of drainage or completion of the whole drainage operation, the drainage tube 27 is pressed by the movable clamping block 14 and the fixed clamping block 13 in the flow rate adjusting mechanism to be in a blocking state, at this time, if the drainage tube 27 is to be integrally separated from the placement groove 21, the position of the movable clamping block 14 needs to be adjusted by the on-off key 8, so that the flow rate adjusting mechanism releases the pressing effect on the drainage tube 27, but if any one of the on-off key 8, the controller 10, the power supply and the driving device 15 fails, the movable clamping block 14 cannot move in an expected manner, so that the drainage tube 27 cannot be smoothly separated from the placement groove 21;

in view of the inconvenience of clinical operation caused by the above drawbacks, the present embodiment is further improved based on the structure of the flow rate adjusting mechanism disclosed in embodiment 1, and the specific implementation structure is as follows:

referring to fig. 13 and 14, the fixed clamping block 13 is limited by a sliding slot 36 provided on the installation plate 12 to have a movable stroke, and the installation plate 12 is provided with a V-shaped spring 35 for driving the fixed clamping block 13 to return to the stroke starting end; as shown in fig. 13, when the fixed clamping block 13 is located at the beginning of the stroke, the position of the fixed clamping block and the thrust provided by the V-shaped spring 35 can satisfy the function of adjusting the flow rate of the fluid in the drainage tube 27 when the fixed clamping block is matched with the movable clamping block 14; when fixed block 13 is at the end of the stroke, it will move away from seating slot 21 and cannot cooperate with movable block 14 to squeeze drain 27, as shown in figure 14; the outer side walls of the fixed clamping block 13 and the placing plate 12 are respectively provided with a trigger 34 protruding outwards;

therefore, as shown in fig. 14, when the drainage tube 27 is to be separated from or inserted into the placement groove 21 each time, the two triggers 34 are manually actuated to close, so that the fixed clamping block 13 is moved away from the movable clamping block 14, the flow rate and flow velocity adjusting mechanism releases the extrusion on the drainage tube 27, and then the drainage tube 27 and the placement groove 21 can be correspondingly operated, and the operation is convenient and fast.

Example 4

Referring to fig. 9, in the medical drainage device disclosed in embodiment 1, each time the roller 19 passes through the arc gap 7 during the revolution process, the drainage tube 27 in the arc gap 7 is revolved by rotating and rolling, so that the effusion in the drainage tube 27 is forced to move backwards, and in this process, the pressure applied to the drainage tube 27 by the roller 19 should be appropriate, on one hand, the drainage tube 27 should be pressed to the side of the arc sidewall 24 as much as possible, so as to improve the effusion output efficiency, and on the other hand, the roller 19 should be prevented from causing excessive pressure to the drainage tube 27, so as to avoid the breakage of the drainage tube 27, and in order to ensure the balance of the above two effects, the present embodiment has a further improvement on the matching manner of the roller 19 and the revolution wheel 20, and the specific implementation structure is as follows:

as shown in fig. 15, the rolling roller 19 is fixed in the roller fork 37 through a rotating shaft, a radial hole 40 with a square cross section is formed inwards on the side wall of the revolving wheel 20, a tensioning pin 38 which is in a square column shape and is in sliding fit with the radial hole 40 is defined in the radial hole 40, a tensioning spring 39 which provides thrust for the tensioning pin 38 is arranged at the bottom of the radial hole 40, and the outer end of the tensioning pin 38 is fixedly connected with the top of the roller fork 37; when the roller 19 and the arc-shaped side wall 24 press the drainage tube 27, the tension spring 39 is in a compressed state and is not completely compressed;

therefore, the roller 19 can float along the radial direction of the revolving wheel 20 to a certain extent, has a tensioning function, and can improve the effusion output efficiency to the maximum extent and prevent the drainage tube 27 from being damaged due to overlarge pressure exerted by the roller 19 when passing through the arc-shaped gap 7.

Example 5

Referring to fig. 5 and 6, in the medical drainage device disclosed in example 1, the controller 10 can obtain the continuous real-time feedback weighing signal of the weighing sensor 23, and it is mentioned in the foregoing description that the foregoing data transmission requirement can be achieved by adding a wireless transmission module, this implementation obviously increases the overall manufacturing cost of the clinical drainage intelligent control device and also reduces the working stability of the clinical drainage intelligent control device, it can be seen that a circuit for transmitting data is preferably arranged between the weighing sensor 23 and the controller 10 to ensure stability and economy, and meanwhile, a conducting wire is also required to be arranged between the weighing sensor 23 and the power supply module 16 to transmit working current; however, the controller 10 and the power supply module 16 are located on the installation board 12, and both are distributed above and below the weighing sensor 23, and the controller 10 and the power supply module 16 can be adjusted in height along with the installation board 12, so that if the circuit is installed in a conventional manner, the circuit is exposed, on one hand, the overall structure of the clinical drainage intelligent control device is not simple enough, and on the other hand, the exposed circuit is easily damaged by external force due to lack of necessary protection; therefore, the present embodiment has a further improvement on the matching relationship among the controller 10, the power supply module 16 and the load cell 23, and the specific implementation structure is as follows:

as shown in fig. 16, a threading cavity 41 is formed in the base 1, the telescopic rod 3 and the placing plate 12 and extends continuously, a cable 42 extends from the base 1 to the placing plate 12 through the threading cavity 41, a signal line for transmitting a weighing signal is arranged in the cable 42 and connects the weighing sensor 23 with the controller 10, and a power line for transmitting current is arranged in the cable 42 and connects the weighing sensor 23 with the power supply module 16; the part of the cable 42 in the telescopic rod 3 is provided with a telescopic section 43 in a spiral spring shape, and the telescopic section 43 can be telescopic together with the telescopic rod 3;

therefore, the cable 42 extends inside the base 1, the telescopic rod 3 and the placing plate 12, so that the cable is not exposed outside, and meanwhile, the cable also has a good protection effect, so that the working stability is improved, and the service life is prolonged.

Example 6

Referring to fig. 5, in the clinical use process of the medical drainage device, the medical drainage device generally needs to be placed on the ground or a platform lower than the patient, but the specific installation height is directly determined by the position of the patient and the layout of the drainage pipeline, in the clinical drainage auxiliary intelligent control device disclosed in the foregoing embodiment, the height of the base 11 is not adjustable, and other supports with appropriate height need to be used for providing stable support for the clinical drainage auxiliary intelligent control device, firstly, the supports with appropriate height are usually not available in the ward, and the finding is troublesome, secondly, the supports capable of providing stable support for the clinical drainage auxiliary intelligent control device can be provided, the size is inevitably large, and the ward space which is originally tense is occupied;

generally speaking, the infusion support is the medical device that must be equipped with in the ward, and its structure is simple relatively, and occupation space is less, if in clinical drainage operation, can utilize the infusion support to provide the support for this supplementary intelligent control device of using of clinical drainage as required, must solve aforementioned problem, and based on this technical objective, this embodiment has further improvement to the supplementary intelligent control device of using of clinical drainage that embodiment 1 disclosed, and concrete implementation structure is:

referring to fig. 17, 18 and 19, the medical drainage device further includes two clamping members 45 with the same structure, and the clamping members 45 are provided with a first bayonet 49 and a second bayonet 50 on the same side, so that the clamping members 45 are integrally E-shaped; the telescopic rod 3 is provided with two clamping parts 47 which are distributed up and down, the first bayonet 49 is used for being clamped outside the clamping part 47 to enable the clamping piece 45 and the telescopic rod 3 to be relatively fixed in the vertical direction, and the second bayonet 50 is used for being clamped outside the transfusion rod 51 to enable the clamping piece 45 and the transfusion rod 51 to be relatively fixed in the vertical direction; therefore, the telescopic rod 3 and the transfusion rod 51 can be fixed in the vertical direction by two clamping pieces 45 and keep parallel; the base 1 is composed of a main supporting seat 102 and a combined block 101 which can be disassembled and assembled, a locking mechanism 48 for locking the combined state of the main supporting seat 102 and the combined block 101 is arranged between the main supporting seat 102 and the combined block 101, the weighing platform 2, the weighing sensor 23 and the telescopic rod 3 are matched and connected with the combined block 101, and a receiving groove 44 which is formed by sinking and is used for receiving two clamping and fixing pieces 45 is arranged on the main supporting seat 102;

therefore, in the clinical drainage operation, if the medical drainage device is placed on the ground, and the height of the medical drainage device cannot meet the requirement of the drainage operation, as shown in fig. 19, the main support seat 102 can be separated, and then the rest functional parts are fixed on one side of the infusion rod 51 of the infusion support by the two clamping and fixing pieces 45, and the installation height can be conveniently adjusted according to the clinical requirement; after the main supporting seat 102 is separated, the dead weight of the rest parts is smaller, so that the transfusion rod 51 can provide stable support for the intelligent control device for clinical drainage assistance;

further, referring to fig. 19 and 20, in order to improve the stability of the combined clamping member 45 and the telescopic rod 3, the first bayonet 49 of the clamping member 45 and the clamping portion 47 of the telescopic rod 3 are respectively provided with an absorption magnetic sheet 46, and when the first bayonet 49 and the clamping portion 47 are combined, the two absorption magnetic sheets 46 are connected together in an absorption manner; meanwhile, in order to improve the stability of the combined second bayonet 50 of the clamping member 45 and the infusion rod 51, a plurality of guide grooves 53 are uniformly distributed on the side wall of the second bayonet 50, a plurality of floating clamping blocks 54 are limited by the guide grooves 53 one by one and have a floating stroke, when the floating clamping block 54 is positioned at the initial end of the floating stroke, the outer end of the floating clamping block extends into the second bayonet 50, and when the floating clamping block 54 is positioned at the terminal end of the floating stroke, the outer end of the floating clamping block retracts into the guide groove 53 and is not positioned in the second bayonet 50; the pushing magnetic sheets 52 are respectively arranged between the floating fixture block 54 and the corresponding guide groove 53, and the two pushing magnetic sheets 52 can drive the floating fixture block 54 to reset to the initial end of the floating stroke by virtue of repulsive force; the outer end of the floating fixture block 54 is an arc-shaped surface for clamping the transfusion rod 51, and a rubber pad 55 for improving the friction resistance is fixed on the arc-shaped surface;

therefore, the first bayonet 49 and the clamping part 47 can be connected more stably by virtue of the magnetic absorption sheet 46, and meanwhile, the magnetic absorption sheet 46 also plays a certain positioning role, so that the combination of the first bayonet 49 and the clamping part 47 is more in place; after the second bayonet 50 is combined with the infusion rod 51, the floating fixture block 54 in the second bayonet 50 can grip the infusion rod 51, so that the combination stability of the second bayonet 50 and the infusion rod 51 is improved; meanwhile, the floating fixture block 54 has a certain floating stroke, so that the second bayonet 50 can be clamped on the infusion rod 51 with different diameters, the compatibility of the clamping fixture 45 is improved, and the use mode of the medical drainage device is more flexible.

Claims

1. A medical drainage device, comprising:

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 weighing sensor, the driving device, the power device and the controller;

the clamping device comprises two clamping pieces with the same structure, wherein a first bayonet and a second bayonet which are positioned on the same side are arranged on the clamping pieces, so that the clamping pieces are integrally E-shaped; the telescopic rod is provided with two clamping parts which are distributed up and down, the first bayonet is used for being clamped outside the clamping parts so that the clamping piece and the telescopic rod are kept relatively fixed in the vertical direction, and the second bayonet is used for being clamped outside the infusion rod so that the clamping piece and the infusion rod are kept relatively fixed in the vertical direction; therefore, the telescopic rod and the infusion rod can be fixed in the vertical direction by two clamping pieces and keep parallel; the base is composed of a main supporting seat and a combined block which can be disassembled and assembled, a locking mechanism for locking the combined state of the main supporting seat and the combined block is arranged between the main supporting seat and the combined block, the weighing platform, the weighing sensor and the telescopic rod are matched and connected with the combined block, and a receiving groove which is formed by sinking downwards and is used for receiving two clamping and fixing pieces is arranged on the main supporting seat; the first bayonet of the clamping piece and the clamping part of the telescopic rod are respectively provided with an adsorption magnetic sheet, and the two adsorption magnetic sheets are connected together in an adsorption manner after the first bayonet and the clamping part are combined; the side wall of the second bayonet is uniformly provided with a plurality of guide grooves, a plurality of floating fixture blocks are limited by the guide grooves and have a floating stroke, when the floating fixture blocks are positioned at the initial end of the floating stroke, the outer ends of the floating fixture blocks extend into the second bayonet, and when the floating fixture blocks are positioned at the terminal end of the floating stroke, the outer ends of the floating fixture blocks retract into the guide grooves and are not positioned in the second bayonet; push magnetic sheets are respectively arranged between the floating fixture blocks and the corresponding guide grooves, and the two push magnetic sheets can drive the floating fixture blocks to reset to the initial ends of the floating strokes by virtue of repulsive force; the outer end of the floating fixture block is an arc-shaped surface and is used for clamping the transfusion rod, and a rubber pad used for improving the friction resistance is fixed on the arc-shaped surface.

2. The medical drainage device of claim 1, wherein: the controller can carry out coordinated control to flow rate adjustment mechanism and negative pressure drainage mechanism based on real-time drainage speed, single real-time drainage volume and preset drainage mode and drainage parameter, and wherein the concrete control mode in the negative pressure drainage mode is:

the controller enables the roller to continuously revolve to drive the drainage tube to output fluid in a successive and discontinuous mode, and enables the movable clamping block to extrude the drainage tube to a blocking state to prevent the fluid in the drainage tube from flowing back in the discontinuous period of adjacent two times of fluid output, so that negative pressure drainage is achieved;

a. according to the preset drainage starting time, the controller enables the flow speed adjusting mechanism and the negative pressure drainage mechanism to work in a matched mode, so that the accumulated liquid is forced to be drained into the drainage bag by a human body, and the timed drainage is realized; in the initial stage of primary drainage, although the fluid in the drainage tube may be air, the drainage tube can empty the air when outputting the fluid, and then the drainage of the accumulated fluid is smoothly carried out;

b. in the drainage process, the controller adjusts the revolution speed of the roller according to the real-time drainage speed, so that the average flow velocity 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 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 made the roll stop the revolution and reset to initial position, made movable clamp splice simultaneously and extrudeed the drainage tube to blocking the state, this time drainage was ended this moment, realized quantitative drainage promptly.

3. The medical drainage device of claim 1, wherein: the controller can carry out coordinated control to flow rate adjustment mechanism and negative pressure drainage mechanism based on real-time drainage speed, single real-time drainage volume and preset drainage mode and drainage parameter, wherein the concrete control mode in the ordinary pressure drainage mode is:

before primary drainage, the controller enables the roller to continuously revolve to drive the drainage tube to output fluid in a successive discontinuous mode, during the discontinuous period of two adjacent fluid outputs, the controller enables the movable clamping block to extrude the drainage tube to a blocking state to prevent the fluid in the drainage tube from flowing back, therefore, air in the drainage tube is discharged to provide trigger pressure for a siphon effect, when a weighing signal changes, the roller stops revolving and resets to an initial position, the movable clamping block extrudes the drainage tube to the blocking state, and then normal-pressure drainage can be achieved through the siphon effect;

a. according to the preset drainage starting time, the controller adjusts the extrusion state of the movable clamping block on the drainage tube to enable the drainage tube to be kept in a conduction state, and accumulated liquid drainage can be realized by means of a siphon effect due to the accumulated liquid in the drainage tube, namely, timing drainage is realized;

b. in the drainage process, the controller adjusts the extrusion state of the movable clamping block on the drainage tube according to the real-time drainage speed, so that the fluid speed in the drainage tube is increased or reduced, and finally the real-time drainage speed is approximately equal to the preset drainage speed, namely, the constant-speed drainage is realized;

c. in the drainage process, the controller calculates the initial single real-time drainage volume that reaches to present of this time drainage in real time, and when the single real-time drainage volume reached preset single drainage volume, the controller adjusted movable clamp splice to the extrusion state of drainage tube, made the drainage tube be in and block the state, and this time drainage finishes this moment, realizes the ration drainage promptly.