CN111359034A

CN111359034A - Drainage bag capable of automatically controlling opening and closing of drainage tube

Info

Publication number: CN111359034A
Application number: CN202010371804.8A
Authority: CN
Inventors: 司小静
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-07-03

Abstract

The invention discloses a drainage bag capable of automatically controlling the opening and closing of a drainage tube, which comprises a first drainage bag, a second drainage bag and a three-way hose, wherein the first drainage bag and the second drainage bag both comprise an inner bag and an outer bag; a first liquid outlet pipe and a second liquid outlet pipe of the three-way hose are respectively connected with the inlet ends of the two inner bags; an automatic pipeline switching device for switching the on-off state of the first liquid outlet pipe and the second liquid outlet pipe is arranged between the first liquid outlet pipe and the second liquid outlet pipe, and the automatic pipeline switching device is connected with the sheet pressure sensor; the drainage bag automatic switching device has the advantages that the on-off state of the drainage tube can be automatically switched according to the liquid amount in the drainage bag, and the drainage bag automatic switching and continuous drainage can be realized.

Description

Drainage bag capable of automatically controlling opening and closing of drainage tube

Technical Field

The invention belongs to the technical field of medical accessories, and particularly relates to a drainage bag capable of automatically controlling the opening and closing of a drainage tube.

Background

The drainage bag is one of the common medical appliances used for smoothly guiding the tissue fluid, urine, effusion and other fluids in the body of a patient to the outside of the body of the patient in the medical field. The existing drainage bag is provided with a manual drainage tube sealing device at the inlet end of the drainage bag, and the drainage tube is opened or sealed through manual operation. But at the in-process of in-service use drainage bag, manual opening or closing the drainage tube not only operate inconveniently, dredge in the circumstances of supervision at night or medical personnel simultaneously, often appear the drainage bag and fill the back and can't continue the condition of drainage, extremely be unfavorable for patient's recovery. The inside of current partial drainage bag can be directly at the drainage bag sets up pressure sensor or level sensor and is used for the liquid storage volume in the control drainage bag, but the liquid in the drainage bag usually is human flowing back such as tissue liquid, urine, can pollute the drainage bag, and the drainage bag is disposable utensil promptly. Set up pressure sensor or level sensor in disposable drainage bag inside, not only be difficult to change the inside pressure sensor or the level sensor of drainage bag when changing the drainage bag, the inside liquid of drainage bag also can pollute pressure sensor or level sensor simultaneously.

Therefore, the invention discloses a drainage bag capable of automatically controlling the opening and closing of a drainage tube, aiming at the defects that the on-off state of the drainage tube cannot be automatically controlled and the liquid amount monitoring device in the drainage bag is difficult to replace in the traditional drainage bag.

Disclosure of Invention

The invention aims to provide a drainage bag capable of automatically controlling the opening and closing of a drainage tube, which can automatically switch the on-off state of a first liquid outlet tube or a second liquid outlet tube according to the liquid amount in the drainage bag, effectively avoid the problem that the drainage can not be continued due to the overflow of the liquid in the drainage bag, do not need manual real-time monitoring, and is convenient and labor-saving.

The invention is realized by the following technical scheme:

a drainage bag capable of automatically controlling opening and closing of a drainage tube comprises a first drainage bag, a second drainage bag and a three-way hose, and is characterized in that the first drainage bag and the second drainage bag both comprise an inner bag and an outer bag, the outer bag is sleeved outside the inner bag, and a sheet pressure sensor is arranged between the outer bag and the inner bag; a first liquid outlet pipe and a second liquid outlet pipe of the three-way hose are respectively connected with the inlet ends of the two inner bags; an automatic pipeline switching device for switching the on-off state of the first liquid outlet pipe and the on-off state of the second liquid outlet pipe is arranged between the first liquid outlet pipe and the second liquid outlet pipe, and the automatic pipeline switching device is connected with the slice pressure sensor.

The inlet end of the three-way hose is connected with the outlet end of the drainage tube through the quick-connection plug, the first liquid outlet pipe of the three-way hose is arranged corresponding to the inlet end of the inner bag of the first drainage bag, and the second liquid outlet pipe of the three-way hose is arranged corresponding to the inlet end of the inner bag of the second drainage bag. When the drainage bag is not used, the automatic pipeline switching device clamps and closes the first liquid outlet pipe and the second liquid outlet pipe, namely the first liquid outlet pipe is not communicated with the inner bag of the first drainage bag, and the second liquid outlet pipe is not communicated with the inner bag of the second drainage bag. When the drainage bag needs to be used, the first liquid outlet pipe is opened by the automatic pipeline switching device, the second liquid outlet pipe is still in a closed state, and effusion in the body of a patient can enter the inner bag of the first drainage bag through the first liquid outlet pipe to be stored. Along with the gradual increase of the liquid in the inner bag, the sheet pressure sensor between the inner bag and the outer bag is extruded after the inner bag is expanded. When the liquid in the inner bag is stored to a certain volume, the pressure to the sheet pressure sensor after the inner bag is expanded exceeds a preset threshold value, the sheet pressure sensor sends a signal to the automatic pipeline switching device, and the automatic pipeline switching device closes the first liquid outlet pipe and opens the second liquid outlet pipe. The hydrops that the patient continues to produce this moment gets into the inner bag of second drainage bag and can not get into first drainage bag through the second drain pipe, and it is excessive to avoid first drainage bag interior liquid, and second drainage bag carries out follow-up drainage as reserve drainage bag after first drainage bag is full.

In order to better realize the invention, the automatic pipeline switching device comprises a fixed shell, a tube clamping plate, a tube clamp driving device and a control single chip microcomputer, wherein tube passing through holes for a first liquid outlet tube and a second liquid outlet tube to pass through are respectively arranged on the fixed shell, the tube clamping plate is arranged in the shell in a sliding manner along a direction vertical to the axis of the first liquid outlet tube and the axis of the second liquid outlet tube, the tube clamp driving device for driving the tube clamping plate to slide back and forth and connected with the control single chip microcomputer is arranged on one side of the tube clamping plate, and the control single chip microcomputer is also connected with a slice pressure sensor; be provided with the first double-layered groove and the second that supply first drain pipe and second drain pipe to pass on the double-layered tube sheet respectively, the width in first double-layered groove increases from the diameter that is less than first drain pipe to the diameter that is greater than first drain pipe along the slip direction, the width in second double-layered groove is less than the diameter of second drain pipe, and is provided with the mouth of dodging that is greater than the diameter of second drain pipe in the one end in second double-layered groove.

The top of the fixed shell is provided with an passing through hole penetrating through the bottom of the fixed shell corresponding to the first liquid outlet pipe and the second liquid outlet pipe respectively, the first liquid outlet pipe and the second liquid outlet pipe are inserted into the fixed shell through the passing through hole, meanwhile, the first liquid outlet pipe penetrates through the first clamping groove and extends to the outside of the fixed shell from the passing through hole in the bottom of the fixed shell, and the second liquid outlet pipe penetrates through the second clamping groove and extends to the outside of the fixed shell from the passing through hole in the bottom of the fixed shell. When the drainage bag is not used, the first liquid outlet pipe is positioned in the first clamping groove, the width of the first liquid outlet pipe is smaller than the diameter of the first liquid outlet pipe, namely the first clamping groove clamps the first liquid outlet pipe at the moment so that the first liquid outlet pipe is in a closed state; meanwhile, the second liquid outlet pipe is positioned in the second clamping groove, the width of the second liquid outlet pipe is smaller than the diameter of the second liquid outlet pipe, namely the second clamping groove clamps the second liquid outlet pipe at the moment so that the second liquid outlet pipe is in a closed state.

When the drainage bag needs to be used, the pipe clamp driving device drives the pipe clamping plate to slide, so that the first clamping groove and the first liquid outlet pipe are driven to move relatively, and meanwhile, the second clamping groove and the second liquid outlet pipe are driven to move relatively. The first clamping groove is further enabled to move to a position where the width is larger than the diameter of the first liquid outlet pipe relative to the first liquid outlet pipe, and at the moment, the first clamping groove does not clamp the first liquid outlet pipe any more so that the first liquid outlet pipe is opened; meanwhile, although the second clamping groove and the second liquid outlet pipe move relatively, the second liquid outlet pipe is still located at a position where the width of the second clamping groove is smaller than the diameter of the second liquid outlet pipe, namely the second liquid outlet pipe is still in a closed state while the first liquid outlet pipe is opened, and the state that only the first liquid outlet pipe is opened for drainage is kept.

After the first drainage bag is filled, a signal is fed back to the pipe clamp driving device through the sheet pressure sensor, the pipe clamp driving device drives the pipe clamping plate to slide at the moment, so that the first clamping groove moves to a position with the width smaller than the diameter of the first liquid outlet pipe relative to the first liquid outlet pipe, and the first liquid outlet pipe is clamped by the first clamping groove and is closed; meanwhile, the second clamping groove moves to a position where the width is larger than that of the second liquid outlet pipe relative to the second liquid outlet pipe, and at the moment, the second clamping groove does not clamp the second liquid outlet pipe any more so that the second liquid outlet pipe is opened to realize switching of on-off states between the first liquid outlet pipe and the second liquid outlet pipe.

It should be further noted that when the first clamping groove moves relative to the first liquid outlet pipe and the second clamping groove moves relative to the second liquid outlet pipe, the pipe passing through hole in the fixed shell limits the first liquid outlet pipe and the second liquid outlet pipe, so that the first liquid outlet pipe is prevented from moving along with the first clamping groove, and the second liquid outlet pipe is prevented from moving along with the second clamping groove. The upper end and the lower end of the first liquid outlet pipe and the upper end and the lower end of the second liquid outlet pipe are respectively limited by the pipe passing through holes on the upper side and the lower side of the fixed shell, so that the first clamping groove at the bottom of the first liquid outlet pipe is fixed, and the second clamping groove of the second liquid outlet pipe is fixed relative to the second clamping groove.

The above-mentioned sheet pressure sensor is disclosed in patent No. CN201612031509.3 entitled "sheet pressure sensor", and the circuit connecting the sheet pressure sensor and the automatic pipeline switching device is well known and can be realized by those skilled in the art, so it is not described herein again.

In order to better realize the invention, the pipe clamp driving device further comprises a micro driving motor, a screw, a nut seat, a first bevel gear and a second bevel gear, wherein the screw is rotatably arranged below the pipe clamping plate, and the bottom of the pipe clamping plate is provided with the nut seat which is screwed on the screw; one end cover of screw rod is equipped with first helical gear, first helical gear and second helical gear meshing, the second helical gear suit is on miniature driving motor's output shaft, miniature driving motor still is connected with the control singlechip.

The slice pressure sensor feeds back a signal to the control single chip microcomputer, the control single chip microcomputer further controls the micro driving motor to start, an output shaft of the micro driving motor drives the second bevel gear to rotate, the second bevel gear further drives the electric first bevel gear to rotate, further the electric screw rod rotates, and the screw rod further drives the nut seat and the pipe clamping plate to linearly move along the inside of the fixed shell.

The micro driving motor is an existing product with the model number of 60BLD030-12-30B, and the structure, the using mode and the wiring mode are not described again; the control single chip microcomputer is an existing product with the model number of STM32F429IGT6, and the structure, the use mode and the wiring mode of the control single chip microcomputer are not described in detail herein.

In order to better realize the invention, the invention further comprises a storage battery, wherein the storage battery is respectively connected with the control singlechip and the micro driving motor, and an electric socket connected with the storage battery is also arranged on the fixed shell.

The storage battery is an existing product with the model number of TP12-7, and the structure, the use mode and the wiring mode of the storage battery are not described again.

In order to better realize the invention, further, pipe sleeves for fixing the first liquid outlet pipe and the second liquid outlet pipe are arranged at openings at two ends of the through hole of the fixed shell, and a fixing component is further arranged at one side of the fixed shell.

The first liquid outlet pipe and the second liquid outlet pipe penetrate through the pipe sleeve to enter the fixed shell, the pipe sleeve guides the first liquid outlet pipe and the second liquid outlet pipe to be inserted into the fixed shell, and the pipe sleeve limits the first liquid outlet pipe and the second liquid outlet pipe; the fixing component is used for installing the fixing shell on one side of the sickbed.

In order to better realize the invention, the fixing component further comprises a fixing clamping piece, a movable clamping piece and an adjusting screw, the fixing clamping piece is arranged on one side outside the fixing shell, the movable clamping piece is arranged on the fixing clamping piece in a sliding mode along the vertical direction, and the adjusting screw used for tightly propping against the movable clamping piece is arranged on one side, away from the fixing clamping piece, of the movable clamping piece.

In order to better realize the invention, an audible and visual alarm is further arranged inside the fixed shell and is connected with the control single chip microcomputer.

The acousto-optic alarm is an existing product with the model of MEB-ASM, and the structure, the use mode and the wiring mode of the acousto-optic alarm are not described again.

In order to better realize the invention, one end of the outer bag is provided with an opening for the inner bag to be filled in, the inner side of the opening of the outer bag is provided with a female clamping strip, and the outer side of the top of the inner bag is provided with a sub-clamping strip which is tightly clamped with the female clamping strip; the bottom of the outer bag is provided with an air outlet, and the bottom of the inner bag is provided with a liquid discharge pipe which penetrates through the outer bag and extends outwards.

The inner bag and the outer bag are both made of flexible plastic materials, and the top end of the outer bag is provided with an opening for the inner bag to be filled. After the inner bag is arranged in the outer bag, the liquid discharge pipe at the bottom of the inner bag extends to the outer side of the outer bag through the through hole at the bottom of the outer bag, and meanwhile, the sub clamping strip at the outer side of the top of the inner bag is clamped with the main clamping strip at the inner side of the top of the outer bag, so that the inner bag is fixed in the outer bag. And then opening an air outlet on the outer bag and extruding the inner bag and the outer bag, so that air between the inner bag and the outer bag is discharged through the air outlet, the outer side surface of the inner bag is close to fit with the inner side surface of the outer bag, and the sheet pressure sensor between the inner bag and the outer bag can be smoothly extruded after the subsequent drainage expansion of the inner bag.

Further, the vent hole is provided in the outer bag in order to discharge air between the outer bag and the inner bag as much as possible and to allow the outer surface of the inner bag and the inner surface of the outer bag to be bonded as much as possible, and is not intended to maintain the inner bag and the outer bag in a sealed state.

In order to better realize the invention, further, a one-way valve inclined towards the first drainage bag is arranged inside the first liquid outlet pipe, and a one-way valve inclined towards the second drainage bag is arranged inside the second liquid outlet pipe.

In order to better realize the invention, furthermore, the first drainage bag and the second drainage bag are both provided with scale marks.

Compared with the prior art, the invention has the following advantages and beneficial effects:

(1) according to the invention, the three-way hose is arranged and is connected with the first drainage bag through the first liquid outlet pipe of the three-way hose, the second liquid outlet pipe of the three-way hose is communicated with the second drainage bag, meanwhile, the slice pressure sensor is arranged to monitor the liquid amount in the first drainage bag, the liquid amount is fed back to the automatic pipeline switching device, after the first drainage bag is filled, the automatic pipeline switching device controls the first liquid outlet pipe to be closed and the second liquid outlet pipe to be opened, so that the continuous drainage to the second drainage bag is realized;

(2) according to the invention, the first drainage bag is arranged into an inner bag and an outer bag, the sheet pressure sensor is arranged between the inner bag and the outer bag, the sheet pressure sensor is extruded after the inner bag stores liquid and expands, so that a signal is fed back to the automatic pipeline switching device, and the on-off state of the first liquid outlet pipe and the second liquid outlet pipe is controlled by the automatic pipeline switching device; after the inner bag is used, the inner bag can be conveniently taken out of the outer bag, so that the sheet pressure sensor is effectively prevented from being polluted, and meanwhile, the outer bag can be used for multiple times;

(3) according to the invention, the audible and visual alarm connected with the control single chip microcomputer is arranged on the fixed shell, and after the control single chip microcomputer receives a signal from the sheet sensor, the control single chip microcomputer controls the audible and visual alarm to give audible and visual alarms at the same time, so that medical personnel can be prompted to change the drainage bag in time;

(4) according to the invention, through the arrangement of the first drainage bag and the second drainage bag, even if the first drainage bag is full of liquid, the first drainage bag can be switched to be closed and the second drainage bag can be switched to be opened through the automatic pipeline switching device, so that continuous drainage is realized, and meanwhile, enough buffering time is provided for medical staff to replace the drainage bag in time.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of an automatic pipeline switching device;

FIG. 3 is a schematic view of a state in which both the first and second liquid outlets are closed;

FIG. 4 is a schematic view of a state in which a first liquid outlet pipe is closed and a second liquid outlet pipe is opened;

FIG. 5 is a schematic view of a state in which a first outlet pipe is open and a second outlet pipe is closed;

FIG. 6 is a schematic structural view of a fixing assembly;

FIG. 7 is a schematic diagram of the inner and outer bags;

fig. 8 is a schematic view of a one-way valve.

Wherein: 1-a first drainage bag; 2-a second drainage bag; 3-a three-way hose; 4-a sheet pressure sensor; 5-quick plug-in connector; 6-automatic pipeline switching device; 11-an inner bag; 12-an outer bag; 000-drainage hose; 001-a first liquid outlet pipe; 002-a second liquid outlet pipe; 003-tee joint; 61-a stationary housing; 62-a pinch plate; 63-pipe clamp driving device; 66-control the singlechip; 67-a battery; 631-a micro drive motor; 632-screw; 633-nut seats; 634-a first bevel gear; 635-a second bevel gear; 111-fixing the card; 222-a campaign card; 333-adjusting screw; 98-female card strip; 99-sub card strip.

Detailed Description

Example 1:

the drainage bag capable of automatically controlling the opening and closing of the drainage tube of the embodiment is shown in fig. 1 and 7, and comprises a first drainage bag 1, a second drainage bag 2 and a three-way hose 3, and is characterized in that the first drainage bag 1 and the second drainage bag 2 both comprise an inner bag 11 and an outer bag 12, the outer bag 12 is sleeved outside the inner bag 11, and a sheet pressure sensor 4 is arranged between the outer bag 12 and the inner bag 11; a first liquid outlet pipe and a second liquid outlet pipe of the three-way hose 3 are respectively connected with the inlet ends of the two inner bags 11; an automatic pipeline switching device 6 for switching the on-off state of the first liquid outlet pipe and the on-off state of the second liquid outlet pipe are arranged between the first liquid outlet pipe and the second liquid outlet pipe, and the automatic pipeline switching device 6 is connected with the slice pressure sensor 4.

Tee bend hose 3 includes drainage hose 000, first drain pipe 001, second drain pipe 002, tee bend head 003, the inside of tee bend head 003 is provided with three way pipe, the play end of the overflow pipe that extends through quick connector 5 and patient in the inlet end of drainage hose 000 is connected, the play end of drainage hose 000 is connected with an opening of the inside three way pipe of tee bend head 003, two other openings of three way pipe are connected with the inlet end of first drain pipe 001 and the inlet end of second drain pipe 002 respectively through quick connector.

First drainage bag 1 and second drainage bag 2 all include inner bag 11 and the outer bag 12 of suit in the inner bag 11 outside, and the top of inner bag 11 is provided with the import of being connected with the play end of first drain pipe 001 or second drain pipe 002, and the top of outer bag 12 is provided with the opening that supplies inner bag 11 to pack into. Inner bag 11 and outer bag 12 all obtain through flexible plastic material preparation, and are provided with thin slice pressure sensor 4 between inner bag 11 and outer bag 12, extrude thin slice pressure sensor 4 promptly after inner bag 11 drainage inflation, and thin slice pressure sensor 4 feedback signal is to automatic pipeline auto-change over device 6, through the break-make of automatic pipeline auto-change over device 6 control first drain pipe 001 and second drain pipe 002.

The specific use mode is that, when the drainage bag does not use, automatic pipeline switching device 6 all presss from both sides tightly first drain pipe 001 and second drain pipe 002 for first drain pipe 001 and second drain pipe 002 all are in the closed condition and can not the drainage. When the drainage bag is used, the automatic pipeline switching device 6 opens the first liquid outlet pipe 001, the second liquid outlet pipe 002 is still in a closed state, and effusion in the body of a patient can enter the inner bag 11 through the drainage hose 000 and the first liquid outlet pipe 001. After liquid in inner bag 11 reaches certain volume, inner bag 11 inflation and extrusion thin slice pressure sensor 4, after liquid in inner bag 11 reaches certain capacity, inner bag 11 surpasses predetermined threshold value to thin slice pressure sensor 4's pressure, thin slice pressure sensor 4 sends signal to automatic pipeline switching device 6 this moment, automatic pipeline switching device 6 closes first drain pipe 001, open second drain pipe 002 simultaneously, the internal hydrops of patient can be through drainage hose 000 this moment, second drain pipe 002 gets into second drainage bag 2, avoid in first drainage bag 1 liquid excessive to lead to the refluence.

Example 2:

the embodiment is further optimized on the basis of embodiment 1, the second drainage bag 2 also comprises an inner bag 11 and an outer bag 12 sleeved outside the inner bag 11, the top opening of the inner bag 11 is connected with the outlet end of the second liquid outlet pipe 2, and a thin sheet pressure sensor 4 is arranged between the inner bag 11 and the outer bag 12. After first drain pipe 001 was closed and second drain pipe 002 opened, the internal hydrops of patient got into the inner bag 11 inflation of second drainage bag 2, until inner bag 11 inflation extrusion thin slice pressure sensor 4 to a certain extent, thin slice pressure sensor 4 feedback signal to automatic pipeline auto-change over device 6 this moment, and automatic pipeline auto-change over device 6 is closed first drain pipe 001 and second drain pipe 002 simultaneously this moment.

Other parts of this embodiment are the same as embodiment 1, and thus are not described again.

Example 3:

in this embodiment, a further optimization is performed on the basis of the foregoing embodiment 1 or 2, as shown in fig. 2, the automatic pipeline switching device 6 includes a fixed housing 61, a pipe clamping plate 62, a pipe clamp driving device 63, and a control single chip microcomputer 66, wherein the housing 61 is provided with pipe through holes for the first liquid outlet pipe 001 and the second liquid outlet pipe 002 to pass through, the inside of the housing 61 is provided with the pipe clamping plate 62 in a sliding manner along a direction perpendicular to the axes of the first liquid outlet pipe 001 and the second liquid outlet pipe 002, one side of the pipe clamping plate 62 is provided with the pipe clamp driving device 63 for driving the pipe clamping plate 62 to slide back and forth and connected with the control single chip microcomputer 66, and the control single chip microcomputer 66 is further connected with the sheet pressure sensor 4; it presss from both sides groove 01 and second clamp groove 02 to be provided with the first clamp groove 01 and the second that supply first drain pipe 001 and second drain pipe 002 to pass on the pipe clamp plate 62 respectively, the width of first clamp groove 01 increases along the diameter that sliding direction is followed from being less than first drain pipe 001 to the diameter that is greater than first drain pipe 001 gradually, the width that the groove 02 was pressed from both sides to the second is less than the diameter of second drain pipe 002, and is provided with the mouth of dodging that is greater than the diameter of second drain pipe 002 in the one end that the groove 02 was pressed from both sides to the second.

The inside of fixed shell 61 has seted up the waist type groove that slides along length direction's opposite both sides face, and the both sides of tube clamping plate 62 slide the card respectively and adorn in the waist type inslot that slides of fixed shell 61 both sides, realize tube clamping plate 62 along the waist type groove that slides.

Both sides on the tube clamping plate 62 are provided with a first clamping groove 01 and a second clamping groove 02 along the sliding direction in parallel alignment, the first clamping groove 01 supplies a first liquid outlet pipe 001 to pass through, and the second clamping groove 02 supplies a second liquid outlet pipe 002 to pass through.

For convenience of illustration, the left ends of the first clamping groove 01 and the second clamping groove 02 are used as starting ends, the right ends of the first clamping groove 01 and the second clamping groove 02 are used as terminal ends, the width of the left end of the first clamping groove 01 is greater than the diameter of the first liquid outlet pipe 001, the left end of the second clamping groove 02 is aligned with the left end of the first clamping groove 01, and the width of the left end of the second clamping groove 02 is smaller than the diameter of the second liquid outlet pipe 002. The groove width from the left end to the middle point of the first clamping groove 01 is gradually reduced to be equal to the diameter of the first liquid outlet pipe 001, and the groove width from the middle point to the right end of the first clamping groove 01 is smaller than the diameter of the first liquid outlet pipe 001; the width of the right end of the second clamping groove 02 is larger than the diameter of the second liquid outlet pipe 002, and the diameters from the left end to the right end of the second clamping groove 02 are consistently smaller than the diameter of the second liquid outlet pipe 002.

As shown in fig. 3, corresponding to the state where both the first effluent pipe 001 and the second effluent pipe 002 are closed, at this time, the pipe clamping plate 62 slides under the driving of the pipe clamping driving device 63, so that the first clamping groove 01 slides to the position where the groove width is smaller than the first effluent pipe 001 relative to the first effluent pipe 001, the second clamping groove 02 slides to the position where the groove width is smaller than the second effluent pipe 002 relative to the second effluent pipe 002, and the first effluent pipe 001 and the second effluent pipe 002 are clamped by the first clamping groove 01 and the second clamping groove 02 respectively and are in the closed state.

As shown in fig. 5, corresponding to the state that the first effluent pipe 001 is opened and the second effluent pipe 002 is closed, at this time, the pipe clamping plate 62 slides under the driving of the pipe clamping driving device 63, so that the first clamping groove 01 slides to the left end relative to the first effluent pipe 001, so that the second clamping groove 02 slides to the left end relative to the second effluent pipe 002, because the width of the left end of the first clamping groove 01 is greater than the diameter of the first effluent pipe 001, at this time, the first effluent pipe 001 is not clamped and opened, and because the width of the left end of the second clamping groove 02 is less than the diameter of the second effluent pipe 002, at this time, the second effluent pipe 002 is still clamped and closed.

As shown in fig. 4, corresponding to the state that the first effluent pipe 001 is closed and the second effluent pipe 002 is opened, at this time, the pipe clamping plate 62 slides under the driving of the pipe clamping driving device 63, so that the first clamping groove 01 slides to the right end relative to the first effluent pipe 001, so that the second clamping groove 02 slides to the right end relative to the second effluent pipe 002, because the width of the right end of the first clamping groove 01 is smaller than the diameter of the first effluent pipe 001, at this time, the first effluent pipe 001 is clamped and closed, and simultaneously, because the width of the right end of the second clamping groove 02 is larger than the diameter of the second effluent pipe 002, at this time, the second effluent pipe 002 is not clamped and opened.

The starting, stopping and driving distances of the pipe clamp driving device 63 are controlled by the control single chip 66.

The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.

Example 4:

the present embodiment is further optimized on the basis of any of the above embodiments 1-3, as shown in fig. 2, the pipe clamp driving device 63 includes a micro driving motor 631, a screw 632, a nut seat 633, a first bevel gear 634, and a second bevel gear 635, the screw 632 is rotatably disposed below the pipe clamping plate 62, and the bottom of the pipe clamping plate 62 is provided with the nut seat 633 which is screwed on the screw 632; one end of the screw 632 is sleeved with a first bevel gear 634, the first bevel gear 634 is meshed with a second bevel gear 635, the second bevel gear 635 is sleeved on an output shaft of the micro-driving motor 631, and the micro-driving motor 631 is further connected with the control single chip microcomputer 66.

Bushings are arranged on two side faces of the inside of the fixed shell 61, which are located at the bottom of the tube clamping plate 62, and two ends of the screw 632 are rotatably arranged in the bushings on two sides respectively to realize rotary installation. The left end of the screw 632 is sleeved with a first bevel gear 634 through a connecting key, a second bevel gear 635 is installed corresponding to the first bevel gear 634 in a meshed mode, the second bevel gear 635 is sleeved on an output shaft of the micro-driving motor 631, and meanwhile the micro-driving motor 631 is connected with the control single chip microcomputer 66 through a cable to receive a control signal of the control single chip microcomputer 66. The bottom of the tube clamping plate 62 is provided with a nut seat 633 through a screw, and the screw 632 passes through a threaded hole on the nut seat 633 to realize threaded connection.

The control single chip 66 sends a signal to the micro driving motor 631, an output shaft of the micro driving motor 631 drives the second bevel gear 635 to rotate, and further drives the first bevel gear 634 and the screw 632 to rotate, and the screw 632 further drives the nut seat 633 and the pipe clamping plate 62 to linearly slide along the sliding kidney-shaped groove inside the fixed housing 61.

Other parts of this embodiment are the same as any of embodiments 1 to 3, and thus are not described again.

Example 5:

the present embodiment is further optimized on the basis of any one of the above embodiments 1 to 4, and as shown in fig. 2, the present embodiment further includes a storage battery 67, the storage battery 67 is respectively connected with the control single chip 66 and the micro driving motor 631, and the fixed housing 61 is further provided with an electrical socket connected with the storage battery 67.

The inside of fixed shell 61 is provided with battery 67, and battery 67 is respectively through cable and control singlechip 66 and miniature driving motor 631 in order to supply power to control singlechip 66 and miniature driving motor 631, is provided with the electric socket of being connected with the charge end of battery 67 simultaneously on fixed shell 61, can charge to battery 67 through the electric socket.

Other parts of this embodiment are the same as any of embodiments 1 to 4, and thus are not described again.

Example 6:

this embodiment is further optimized on the basis of any one of the above embodiments 1 to 5, wherein the fixing housing 61 is provided with pipe sleeves for fixing the first liquid outlet pipe and the second liquid outlet pipe at openings at two ends of the pipe through hole, and one side of the fixing housing 61 is further provided with a fixing component.

Pipe box carries out certain direction to first drain pipe 001 and second drain pipe 002 when first drain pipe 001 and second drain pipe 002 cartridge to fixed shell 61 is inside, simultaneously in first drain pipe 001 and second drain pipe 002 cartridge to fixed shell 61's inside back, the pipe box can carry on spacingly to first drain pipe 001 and second drain pipe 002 for first drain pipe 001 and second drain pipe 002 respectively with first clamp groove 01 and the second clamp groove 02 between the relative position keep relatively fixed.

Further, be provided with transparent shell door on fixed shell 61, when with first drain pipe 001 and second drain pipe 002 cartridge to fixed shell 61's inside, can open fixed shell 61 through the shell door, and then stretch into the first drain pipe 001 of inside supplementary cartridge and second drain pipe 002 of fixed shell 61 with the hand.

Further, as shown in fig. 6, the fixing assembly includes a fixing clip 111, a movable clip 222, and an adjusting screw 333, the fixing clip 111 is disposed on one side of the outside of the fixing housing 61, the movable clip 222 is slidably disposed on the fixing clip 111 along a vertical direction, and the adjusting screw 333 for tightly pressing the movable clip 222 is disposed on one side of the movable clip 222 away from the fixing clip 111.

The movable clamping piece 222 and the fixed clamping piece 111 form a clamp-shaped structure, a sliding groove is formed in one side, close to the movable clamping piece 222, of the fixed clamping piece 111, and a clamping block in sliding connection with the sliding groove is arranged at one end of the sliding clamping piece 222, so that the movable clamping piece 222 can slide away from or close to the fixed clamping piece 111. Through adjusting the position between activity card 222 and the fixed card 111 for reserve the space of centre gripping sick bed railing or sick bed support between activity card 222 and the fixed card 111, then rotate adjusting screw 333, make adjusting screw 333 push up activity card 222 tightly, and then make activity card 222 and fixed card 111 fixed with the sick bed railing centre gripping, and then realize fixed shell 61 fixed on the sick bed railing, avoid whole automatic pipeline auto-change over device 6 to rock.

Other parts of this embodiment are the same as any of embodiments 1 to 5, and thus are not described again.

Example 7:

the present embodiment is further optimized on the basis of any one of the embodiments 1 to 6, and the fixed housing 61 is further provided with an audible and visual alarm, and the audible and visual alarm is connected with the control single chip 66.

After the liquid in first drainage bag 1 was filled up, thin slice pressure sensor 4 received the extrusion and sent signal to control singlechip 66, and control singlechip 66 sends signal to miniature driving motor 631 and audible-visual annunciator respectively, realizes reporting to the police through audible-visual annunciator when closing first drain pipe 001, in time points to medical personnel and changes the drainage bag.

The audible and visual alarm is also connected with the storage battery 67, and the audible and visual alarm is powered by the storage battery 67.

Other parts of this embodiment are the same as any of embodiments 1 to 6, and thus are not described again.

Example 8:

the present embodiment is further optimized on the basis of any one of the above embodiments 1 to 7, as shown in fig. 7, an opening for the inner bag 11 to be inserted into is disposed at one end of the outer bag 12, a female snap strip 98 is disposed inside the opening of the outer bag 12, and a sub-snap strip 99 hermetically engaged with the female snap strip 98 is disposed outside the top of the inner bag 11; the bottom of the outer bag 12 is provided with an exhaust port, and the bottom of the inner bag 11 is provided with a liquid discharge pipe which penetrates through the outer bag 12 and extends outwards.

The inner bag 11 and the outer bag 12 are both made of flexible transparent plastics, the inner side of the top of the outer bag 12 is provided with a female snap strip 98 in a concave shape along the inner contour of the outer bag 12, and the outer side of the top of the inner bag 11 is provided with a male snap strip 99 clamped with the female snap strip 98 along the outer contour of the inner bag 11. After the inner bag 11 is placed inside the outer bag 12, the female clip strip 98 on the outer bag 12 is aligned and fastened with the male clip strip 99 on the inner bag 11, so that the inner bag 11 can be mounted inside the outer bag 12, and a mounting cavity for mounting the sheet pressure sensor 4 is further formed on the inner side of the outer bag 12.

After the inner bag 11 is mounted inside the outer bag 12, the liquid discharge pipe at the bottom of the inner bag 11 passes through the through hole at the bottom of the outer bag 12 and extends to the outer side of the outer bag 12 for emergency liquid discharge, and simultaneously, the inner bag 11 and the outer bag 12 are squeezed, so that air between the inner bag 11 and the outer bag 12 is discharged through the air outlet in the outer bag 12, the outer side surface of the inner bag 11 is attached to the inner side surface of the outer bag 12 as much as possible, and the sheet pressure sensor 4 can be smoothly squeezed when the inner bag 11 is expanded.

Other parts of this embodiment are the same as any of embodiments 1 to 7, and thus are not described again.

Example 9:

this embodiment is further optimized on the basis of any one of embodiments 1 to 8, and as shown in fig. 8, a one-way valve inclined toward the first drainage bag 1 is disposed inside the first outlet pipe 001, and a one-way valve inclined toward the second drainage bag 2 is disposed inside the second outlet pipe 002.

The one-way valve is made of flexible plastic material, and when liquid flows from the inlet end to the outlet end of the first liquid outlet pipe 001 and from the inlet end to the outlet end of the second liquid outlet pipe 002, the one-way valve is opened to enable the first liquid outlet pipe 001 and the second liquid outlet pipe 002 to be kept smooth; when the liquid in first liquid outlet pipe 001 and second liquid outlet pipe 002 flows back from the outlet end to the inlet end, the one-way valve is closed to prevent the liquid from flowing back.

All be provided with the scale mark on first drainage bag 1 and the second drainage bag 2, can the inside liquid capacity of first drainage bag 1 or the second drainage bag 2 of visual observation so that medical personnel in time change through the scale mark.

Other parts of this embodiment are the same as any of embodiments 1 to 8, and thus are not described again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

Claims

1. A drainage bag capable of automatically controlling opening and closing of a drainage tube comprises a first drainage bag (1), a second drainage bag (2) and a three-way hose (3), and is characterized in that the first drainage bag (1) and the second drainage bag (2) both comprise an inner bag (11) and an outer bag (12), the outer bag (12) is sleeved on the outer side of the inner bag (11), and a sheet pressure sensor (4) is arranged between the outer bag (12) and the inner bag (11); a first liquid outlet pipe and a second liquid outlet pipe of the three-way hose (3) are respectively connected with the inlet ends of the two inner bags (11); an automatic pipeline switching device (6) for switching the on-off state of the first liquid outlet pipe and the on-off state of the second liquid outlet pipe are arranged between the first liquid outlet pipe and the second liquid outlet pipe, and the automatic pipeline switching device (6) is connected with the sheet pressure sensor (4).

2. The drainage bag for automatically controlling the opening and closing of the drainage tube according to claim 1, wherein the automatic pipeline switching device (6) comprises a fixed shell (61), a tube clamping plate (62), a tube clamp driving device (63) and a control single chip microcomputer (66), tube through holes for the first and second drain tubes to pass through are respectively arranged on the shell (61), the tube clamping plate (62) is arranged inside the shell (61) in a sliding manner along a direction perpendicular to the axis of the first and second drain tubes to pass through, the tube clamp driving device (63) for driving the tube clamping plate (62) to slide back and forth and connected with the control single chip microcomputer (66) is arranged on one side of the tube clamping plate (62), and the control single chip microcomputer (66) is further connected with a slice pressure sensor (4); be provided with first double-layered groove (01) and the second that supplies first drain pipe and second drain pipe to pass on double-layered tube sheet (62) respectively and press from both sides groove (02), the width of first double-layered groove (01) increases along the diameter that sliding direction follow is less than first drain pipe to the diameter that is greater than first drain pipe gradually, the width that the second pressed from both sides groove (02) is less than the diameter of second drain pipe, and is provided with the mouth of dodging that is greater than the diameter of second drain pipe in the one end that the second pressed from both sides groove (02).

3. The drainage bag for automatically controlling the opening and closing of the drainage tube according to claim 2, wherein the tube clamp driving device (63) comprises a micro driving motor (631), a screw rod (632), a nut seat (633), a first bevel gear (634) and a second bevel gear (635), the screw rod (632) is rotatably arranged below the tube clamping plate (62), and the nut seat (633) which is screwed on the screw rod (632) is arranged at the bottom of the tube clamping plate (62); one end cover of screw rod (632) is equipped with first helical gear (634), first helical gear (634) and second helical gear (635) meshing, second helical gear (635) suit is on miniature driving motor's (631) output shaft, miniature driving motor (631) still are connected with control singlechip (66).

4. The drainage bag for automatically controlling the opening and closing of the drainage tube according to claim 3, further comprising a storage battery (67), wherein the storage battery (67) is respectively connected with the control single chip microcomputer (66) and the micro driving motor (631), and an electrical socket connected with the storage battery (67) is further arranged on the fixed shell (61).

5. The drainage bag for automatically controlling the opening and closing of a drainage tube according to any one of claims 2 to 4, wherein the fixing shell (61) is provided with pipe sleeves for fixing the first liquid outlet pipe and the second liquid outlet pipe at openings at two ends of the pipe through hole, and a fixing component is further arranged at one side of the fixing shell (61).

6. The drainage bag for automatically controlling the opening and closing of the drainage tube according to claim 5, wherein the fixing component comprises a fixing clamping piece, a movable clamping piece and an adjusting screw, the fixing clamping piece is arranged on one side outside the fixing shell (61), the movable clamping piece is arranged on the fixing clamping piece in a sliding mode along the vertical direction, and the adjusting screw for tightly pushing the movable clamping piece is arranged on one side, away from the fixing clamping piece, of the movable clamping piece.

7. The drainage bag capable of automatically controlling the opening and closing of the drainage tube according to claim 5, wherein an audible and visual alarm is further arranged inside the fixed shell (61), and the audible and visual alarm is connected with the control single chip microcomputer (66).

8. The drainage bag for automatically controlling the opening and closing of a drainage tube according to any one of claims 1 to 4, wherein one end of the outer bag (12) is provided with an opening for the inner bag (11) to be filled in, the inner side of the opening of the outer bag (12) is provided with a female clamping strip, and the outer side of the top of the inner bag (11) is provided with a sub clamping strip which is tightly clamped with the female clamping strip; the bottom of the outer bag (12) is provided with an exhaust port, and the bottom of the inner bag (11) is provided with a liquid discharge pipe which penetrates through the outer bag (12) and extends outwards.

9. The drainage bag for automatically controlling the opening and closing of the drainage tube according to any one of claims 1 to 4, wherein the first liquid outlet pipe is internally provided with a one-way valve inclined towards the first drainage bag (1), and the second liquid outlet pipe is internally provided with a one-way valve inclined towards the second drainage bag (2).

10. The drainage bag for automatically controlling the opening and closing of the drainage tube according to claim 9, wherein the first drainage bag (1) and the second drainage bag (2) are provided with scale marks.