CN103933624A - Medical negative pressure drainage device - Google Patents
Medical negative pressure drainage device Download PDFInfo
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- CN103933624A CN103933624A CN201410208175.1A CN201410208175A CN103933624A CN 103933624 A CN103933624 A CN 103933624A CN 201410208175 A CN201410208175 A CN 201410208175A CN 103933624 A CN103933624 A CN 103933624A
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- Prior art keywords
- pipe joint
- outer container
- inner pressurd
- pressurd vessel
- negative pressure
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- A61M1/0011—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
- A61M1/604—Bag or liner in a rigid container, with suction applied to both
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
Disclosed is a medical negative pressure drainage device. The medical negative pressure drainage device comprises a hard outer container capable of being opened and sealed and a thin film inner container, and an air exhaust hole is formed in the outer container. Compared with the prior art, the medical negative pressure drainage device is characterized in that a pipeline or a pipeline joint connected with the inner container penetrates into the hole in the outer container in an outward mode from the inside of the outer container together with an elastic sealing element, the elastic sealing element is used for sealing the gap between the pipeline or the pipeline joint and the hole, a groove is formed in the protruding part of the pipeline joint, an obstacle is clamped in the groove so that disengaging can be prevented, the pipeline joint which is in direct fusion connection with the inner container can be either soft or hard, a one-way valve is arranged in the pipeline joint, the inner container is separated from the outer container, a discharging hole is formed in the bottom of the inner container, air is connected into the outer container, and accordingly drainage matter can be discharged. The medical negative pressure drainage device has the advantages that the manufacturing cost of the inner container is low, the inner container can be used repeatedly, the outer container can be used repeatedly for a long time, contamination cannot happen easily, the total using cost is lowered, nurse automation is promoted, and through the device with an electronic control unit and a pneumatic actuator, the labor intensity of medical staff can be lightened.
Description
Technical field:
The invention relates to the improvement of medical negative pressure drainage device.
Background technology:
CN200820021908 Patent Application Publication a kind of medical negative pressure drainage device, it is so to describe: with the negative pressure drainage device of isolation pocket, it is characterized in that: comprise aspirator bottle, bottle cap, isolation pocket, drainage tube, aspirator, on aspirator bottle, be provided with bottle cap, bottle cap is threaded with aspirator bottle, opening part on bottle cap is connected with the drainage tube with rubber stopper, drainage tube one end is led to outside bottle, one end is led in bottle, one end in drain phial is connected with isolation pocket, and communicating pipe is communicated with aspirator bottle and aspirator, is provided with one-way vent valve on communicating pipe.Sum up with similar language and be exactly; Bottle cap is threaded with aspirator bottle and forms the outer container of a sealing, and drainage tube connects a soft inner pressurd vessel (isolation pocket), and drainage tube is through rubber stopper, and rubber stopper clogs bottleneck.
The major defect that this structure exists is, isolation pocket will be from bottleneck be put into rubber stopper beyond the Great Wall again, bottleneck will be larger and be inconvenient to operate, bottle cap is threaded with aspirator bottle to cause and opens difficulty, drainage tube does not connect check valve and pollutes risk, and inner pressurd vessel can only disposablely use.
CN96237102 Patent Application Publication another medical negative pressure drainage device, general configuration is, there are the outer container and the soft inner pressurd vessel that is easily out of shape and contacts with draining fluids that in the use that can bear atmospheric pressure, do not contact with draining fluids under air pressure, outer container is cup-shaped, inner pressurd vessel is made up of two parts, top be a hard can be withstand voltage diameter and the approaching upper cover of cup-shaped outer container, bottom is the opening sack that a high molecular polymer thin film is made, open-bag subring is enclosed within and covers on outstanding flange, cover flange coordinates with the opening of cup-shaped outer container, there is an annular seal ring, annular seal ring axial seal upper cover and cup-shaped outer container, the middle and upper part of outer container wall of cup has pipe joint to connect outer container inside, two pipe joints on inner pressurd vessel, are covered, one of them pipe joint connects drainage tube, the pipe joint of the middle and upper part of outer container wall of cup is connected in another pipe joint by three-way pipeline joint, tee T a joint connect negative pressure source.The major defect of this structure is disposable inner pressurd vessel because there is hard upper cover to cause cost higher, therefore outer container is because have gas communication likely to pollute with inner pressurd vessel, so also should not repeatedly use, simultaneously because drainage-fluid in inner pressurd vessel is poured out more difficult, easily pollute, complicated operation, also easily pollutes negative pressure source, after generally filling, have to abandon, therefore overall use cost is higher.
The object of the invention is: the some or all of major defect that overcomes existing apparatus, provide a kind of use cost lower, inner pressurd vessel and outer container can be nonexpondable, are convenient to the negative pressure drainage device of automation mechanized operation.
Definition: can bear herein that atmospheric pressure does not produce remarkable distortion under atmospheric pressure and use in the container that contact with draining fluids be called outer container, under air pressure, be easily out of shape and the container that contacts with draining fluids is called inner pressurd vessel.
Summary of the invention:
Medical negative pressure drainage device of the present invention, comprise the outer container that do not contact with draining fluids in the use that can bear atmospheric pressure and be at least partly the inner pressurd vessel contacting with draining fluids in the soft use that can not bear atmospheric pressure, inner pressurd vessel is only by pipeline or pipe joint and the extraneous gas-tight container communicating, on outer container, have for the hole of bleeding, inner pressurd vessel is placed on outer container inside, inner pressurd vessel can separate with outer container, be with the difference of prior art: the pipeline or the pipe joint that connect with inner pressurd vessel outwards penetrate the hole outer container from the inside of outer container together with elastic sealing element, gap between the hole that confession pipeline on elastic sealing element closed conduit or pipe joint and outer container or pipe joint are passed through.
In the part that passes outer container hole, being provided with obstacle with the direct-connected pipe joint of inner pressurd vessel stops pipe joint to be deviate from from hole, there is groove one end that pipe joint is connected with pipeline, card has obstacle in groove, and the inner pressurd vessel that the other end of pipe joint and soft high molecular polymer thin film are made fuses together.
Made by soft high molecular polymer and be integrated with elastic sealing element with the direct-connected pipe joint of inner pressurd vessel, the inner pressurd vessel that one end of pipe joint and soft high molecular polymer thin film are made fuses together, other one end and the pipeline of pipe joint fuse together, there is hard bushing pipe the inside of pipe joint, and there is groove one end that pipe joint is connected with pipeline or has and the barb-like obstacle of pipe joint one.
Outer container is at least made up of container body and container cover two parts, flexible sealing ring or elastic sealing gasket between container body and container cover two parts, container body is connected by buckle with container cover, in container body bottom and container cover, there is the hole of passing through for pipe joint, except pipe joint place being connected with inner pressurd vessel, the wall of inner pressurd vessel is made up of soft high molecular polymer thin film, inner pressurd vessel is all contained in outer container except the part of outer container is stretched out in pipe joint, in the pipe joint being connected with the top of inner pressurd vessel, be connected with check valve, inner pressurd vessel is not communicated with mutually with outer container, the top of inner pressurd vessel and bottom are all connected with pipe joint, in the pipe joint being connected with the bottom of inner pressurd vessel, be connected with check valve, outer container passes into atmosphere or compressed air makes drain discharge inner pressurd vessel.
On the wall of inner pressurd vessel, be pasted with the prestressed flexure strip of bending.
In the pipe joint being connected with the top of inner pressurd vessel, be connected with check valve, two check valve series windings use, and float gravity-held check valve and duck-beak type check valve share same shell.
Check valve is installed in the inside with the direct-connected pipe joint of inner pressurd vessel.
Pipe joint is made up of hard high molecular polymer, on the external cylindrical surface coordinating with outer container aperture, there is groove, flexible sealing ring in groove, one end that pipe joint connects drainage pipe is the shape of plug-in type or flared type or bite type interface, there is hexagon flange the position contacting with outer container in the bottom of pipe joint, the corresponding positions of outer container is equipped with the depression matching with it, the part that passes outer container in pipe joint has a groove, there are the interface of plug-in type hose coupling or the hickey of flared type or straight thread type pipeline connector in the top of groove, the diameter of the nut of flared type or straight thread type pipeline connector is less than the diameter in outer container hole.
A stop valve is housed on the air inlet of bleeding of outer container, and an outlet of stop valve is the shape of public mouthful of hydraulic quick coupler.
With microprocessor and weight sensor, weight sensor is the form of desk-top electronic scale, and the outer container that is set with inner pressurd vessel is placed in frame, and frame is placed on the scale pan of desk-top electronic scale, has the outer container of control to bleed or the electromagnetic valve of air inlet in frame.
Outer container is connected with the guide's air-operated solenoid valve that can set working value by pipeline, the delivery outlet of guide's air-operated solenoid valve main valve connects pneumatic actuator, in frame with multiple pneumatic actuators, the version of pneumatic actuator be the soft pipeline that is connected with inner pressurd vessel or outer container between anvil block and pressure head, the single-acting diaphragm cylinder band dynamic head of spring reset is opened or is pressed from both sides and closes soft pipeline.
The bottom of inner pressurd vessel is connected with pipe joint, the bottom of outer container has for its hole of passing through, in the pipe joint being connected with the bottom of inner pressurd vessel, be connected with check valve, external container has a tee pipe coupling that connects inner pressurd vessel and outer container outside, this tee pipe coupling connects one section of flexible pipe, there is the closed pipe joint of closing cock or cap this hose connection termination, while discharging drain, the closed pipe joint in termination connects an inlet air filtration and air extractor, this device comprises another one tee pipe coupling, one of them joint connects negative pressure source by stop valve, another one joint tape splicing has the filter of stop valve, filter or stop valve lead to atmosphere.
Invention effect:
The inner pressurd vessel manufacturing cost of medical negative pressure drainage device of the present invention is lower, is difficult for polluting, and inner pressurd vessel can use for several times with outer container and can for a long time repeatedly use, and has reduced total use cost.Type with electronic-controlled installation and pneumatic actuator can alleviate medical worker's labor intensity.
Brief description of the drawings:
Accompanying drawing is by the longitudinal sectional view of the negative pressure drainage device of the present invention's design
In figure: 1, pipe joint 2, stop valve 3, elastic sealing element 4, container cover 5, elastic sealing gasket 6, elastic sealing ring 7, snap close 8, container body 9, inner pressurd vessel 10, check valve 11, barb 12, compacting ring 13, duck-beak type check valve 14, retainer 15, flap 16, air gauge interface 17, valve port pad 18, obstacle 19, pipeline
Detailed description of the invention:
The present invention according to requirements difference has multiple different form, for example front formula of portable, bed, soft pipeline joint-type, and rigid tubing joint-type, full isolated form, part isolated form, with or without automatically working platform, the not interchangeable drainage tube of interchangeable drainage tube etc.;
Example 1, referring to accompanying drawing, outer container is made with glass or transparent high molecular polymer, formed by the container body cooperatively interacting and container cover two parts, flexible sealing between the two, elastic sealing elements can be radially or axial elastic sealing ring or elastic sealing gasket, or both have concurrently, connected mode between container body and container cover has multiple, generally connect with snap close, also can connect by the mode that existing common elastic pressuring plate adds snap close, in the time that container cover is made with high molecular polymer, snap close can also together inject with container cover, the form of similar so-called happy button cup, can be at ring of container cover upper ring cap in the time that container cover is made with glass or hard material, on ring, be evenly equipped with several snap closes, after opening snap close, container body can separate with container cover.
Inner pressurd vessel is connected with conduction hose by pipe joint, outwards penetrate hole outer container from the inside of outer container together with elastic sealing element with the direct-connected pipe joint of inner pressurd vessel, inner pressurd vessel is put into outer container, must open outer container and can take out inner pressurd vessel.
There are hard and soft two kinds of forms with the direct-connected pipe joint of inner pressurd vessel, hard pipe joint is made up of hard high molecular polymer, make groove at the external cylindrical surface coordinating with outer container aperture, in groove, put elastic seal ring, elastic seal ring also can replace with elastic cover, the inner pressurd vessel that one end of this kind of hard pipe joint and soft high molecular polymer thin film are made merges, pipe joint connects one end of drainage tube can make the shape of common plug-in type hose coupling and also can make the shape of flared type or straight thread type pipeline connector, while making the shape of flared type or straight thread type pipeline connector, pipe joint rotation when preventing from turning round nut, hexagon flange is made in the position contacting with container cover in the bottom of pipe joint, the depression matching with it is made in the relevant position of container cover.The part that passes outer container in pipe joint has a groove, and in groove, the upper U-shaped spring clip of card is as obstacle.There are the interface of plug-in type hose coupling or the hickey of flared type or straight thread type pipeline connector in the top of groove, the diameter of the nut of flared type or straight thread type pipeline connector is the most smaller like the diameter in outer container hole, so that can be through the hole of outer container, can not connect at the scene like this, benefit is can avoid polluting.
Isolation mutually between inner pressurd vessel and outer container in this example, between inner pressurd vessel and outer container, obstructed piping is communicated with, can guarantee mutually not produce pollution, gas and drain when preventing outer container accidental gas leakage or pass into air in inner pressurd vessel produce adverse current in pipeline, on the pipeline passing through, are connected with check valve at drain.
The inwall of hard pipe joint can be used as the outer sleeve of check valve, and check valve is encapsulated in pipe joint inside.
Soft pipe joint is made and is integrated and together injects with elastic sealing element by resilient soft high molecular polymer, elastic sealing element shows as the several circular protrusions in pipe joint, the effect of pipe joint and sealing member is played in such pipe joint simultaneously, for strengthening sealing place pressure, in pipe joint, be provided with hard bushing pipe, hard bushing pipe can be that rustless steel is made also and can be made up of the high molecular polymer of hard, if can also replace with the shell of check valve with the type of check valve.The inner pressurd vessel that one end of soft pipe joint and soft high molecular polymer thin film are made fuses together, and other one end and the pipeline of pipe joint fuse together, and can heat fuse also and can fuse by chemistry.
Figure middle and lower part has shown a kind of and direct-connected soft pipe joint of inner pressurd vessel, in pipe joint, there is the barb-like obstacle with its one, stop that pipe joint comes off from the hole of outer container, fluted and the longitudinal cross recess in barb place is to facilitate barb to be out of shape to axis direction, and the shell of check valve plays the effect of hard bushing pipe simultaneously.
What figure middle and upper part showed is the shape of hard pipe joint, soft pipe joint can be also this kind of shape, slightly different place is that soft pipe joint is made and is integrated and together injects with elastic seal ring by resilient soft high molecular polymer, and check valve place increases a check valve shell as hard bushing pipe.
The check valve connecting on drainage pipe can be selected the Medical check valves such as existing float gravity type, duck-beak type or diaphragm type, can be contained in the inside that outer container outside also can be encapsulated in inner pressurd vessel, can utilize and the inwall of the direct-connected hard pipe joint of the inner pressurd vessel shell as check valve, check valve is in the inside of pipe joint, when soft pipe joint, sleeve-shaped is made in the bottom of pipe joint, is enclosed within the outside of check valve.
For improving reliability, can use by two check valve series windings, a float gravity-held check valve and a duck-beak type check valve share same shell, concrete structure is: the porose cylindrical sleeve tubular enclosure in top is overlapped successively and had valve port pad, retainer, duck-beak type check valve, compacting ring, these part axials are pressed together, retainer is tubulose, tube wall stretches out several roads rib to center makes the float-type flap of hollow ball-shape remain on center, while having adverse current, hollow ball compresses valve port, during without adverse current, hollow ball falls by gravity, duck-beak type check valve as shown in FIG., when drain flows down, duckbilled opens, duckbilled closure oppositely time.
The wall of inner pressurd vessel is made up of soft high molecular polymer thin film, two opening heat of tubular film merge, also merge with pipe joint heat simultaneously, generally merging in the radial direction, also can in pipe joint, make flange, heat merges in the axial direction, now merges and is between flange and the barrel of tubular film.
The hole that supplies pipeline or pipe joint to pass through is arranged at the bottom of outer container, the bottom of inner pressurd vessel is connected with pipe joint, connected mode is identical with the pipe joint on top, the pipe joint that inner pressurd vessel bottom connects passes the hole of outer container bottom, passes into atmosphere or compressed air and make drain discharge inner pressurd vessel after drain is filled to a certain extent in outer container.
Certainly, inner pressurd vessel also can be made only disposable, and now the bottom of outer container can not have hole.
In the pipe joint of inner pressurd vessel bottom, check valve also can be housed, this check valve stops outside air to enter inner pressurd vessel.
When every day use, inner pressurd vessel injects a certain amount of clean air, the volume of inner pressurd vessel changes with gas pressure in outer container, when pressure balance in inner pressurd vessel and outer container, inner pressurd vessel equates with the air pressure in outer container, can regulate the air pressure in the air pressure indirect regulation inner pressurd vessel in outer container.
In the time that high negative pressure uses, the air capacity of injecting in inner pressurd vessel is very little, air pressure in inner pressurd vessel may be not enough to provide expansion power, now on the wall of inner pressurd vessel, part is pasted with two with the prestressed flexure strip of bending, attaching mode can be that adhesive sticker directly attaches, also can be on the wall of inner pressurd vessel two thin film of heat seal, insert the attaching mode in the interlayer between wall and thin film with the prestressed flexure strip of bending, two staggered relatively with the prestressed flexure strip of bending, flexure strip is flat under atmospheric pressure at ordinary times, flexure strip bending in the time that the air pressure in outer container reduces, force inner pressurd vessel to open generation high negative pressure.
In the time making portable product, on the air inlet of bleeding of outer container, can fill a stop valve, an outlet of stop valve is the form of public mouthful of hydraulic quick coupler, on air extractor, there is female mouth of hydraulic quick coupler, similar with the hydraulic quick coupler of Water Inlet of Washing Machine, both bleed after connecting, and after having bled, close stop valve, then separate with air extractor.
Example 2 is essentially identical transitional type products described in the second in a kind of and background technology, it is to make the hole passing outwards through from the inside of outer container for the pipeline that is connected with inner pressurd vessel or pipe joint in the bottom of cup-shaped outer container that structure does not exist together, the pipeline or the pipe joint that connect with inner pressurd vessel outwards penetrate the hole outer container from the inside of outer container together with elastic sealing element, the gap between the hole that the confession pipeline on elastic sealing element closed conduit or pipe joint and outer container or pipe joint are passed through.This pipe joint can connect one section of flexible pipe or connect a discharge opeing check valve, and the benefit of discharging drain from bottom is to avoid polluting than being easier to.Be connected one section of flexible pipe in tee pipe coupling place that connects inner pressurd vessel and outer container, this hose connection termination is with the pipe joint of closing cock or cap, and when drainage device is normally used, this termination is sealed.While discharging drain, this pipe joint connects an inlet air filtration and air extractor, and this device comprises another tee pipe coupling, and one of them joint connects negative pressure source by valve, the valvular filter of another one joint tape splicing, and valve or filter connect atmosphere.While discharging drain, first press from both sides and close described flexible pipe, again described inlet air filtration and air extractor are connected to the pipe joint of closing cock or cap in termination, decontrol folder and close place, outer container all communicates with atmosphere by filter with inner pressurd vessel, now can discharge drain, after drained, close the valve of filter, opening the valve that connects negative pressure source bleeds, the rear folder closed end headband of having bled has the flexible pipe at the pipe joint place of closing cock or cap, termination is separated with air extractor with inlet air filtration with the pipe joint of closing cock or cap, then plug or cap stopper are lived or covered, after this can normally use.The benefit of one that this structure is brought be basic meet in improving performance requirement can make full use of existing mold and material.
For improving automatization level, alleviate nurse job amount, be provided with automatically working platform, automatically working platform is with microprocessor and weight sensor, microprocessor control solenoid directional control valve, make its timing or according to situation follow procedure actions such as the pressure in drain weight and outer container, can adjust at any time the pressure in outer container.Automatically working platform control system is formed by the electronic system upgrading on electronic scale, microprocessor can with electronic scale on microprocessor use same chip, output input and display system all with electronic scale on share, can store and show relevant information, be preferably with wireless transport module, the information transmission whether drainage flow, drain are interrupted etc. to drainage system, to nurse station, is docked with digital hospital.
Automatically working platform has the frame of a shaped as frame, the outer container that is set with inner pressurd vessel is placed in the frame of shaped as frame frame, weight sensor is the form of desk-top electronic scale, shaped as frame frame is placed on the scale pan of desk-top electronic scale, the solenoid directional control valve of controlling outer container air inlet or bleed is in shaped as frame frame, solenoid directional control valve can be selected the 3-position-3-way solenoid directional control valve of a meta sealing, one of them interface connects the QI KOU that is drawn into of outer container, and one, two interfaces of an other side connect negative pressure source, and another connects atmosphere.The 3-position-3-way solenoid directional control valve of this meta sealing also can combine with two normal off two-position two-way solenoid valves.Connect open to atmosphere valve position at electromagnetic valve, inner pressurd vessel is discharged drain.
For increasing safety coefficient, maybe can save a check valve, can be with multiple pneumatic actuators, the version of pneumatic actuator be the soft pipeline that is connected with inner pressurd vessel between anvil block and pressure head, the single-acting diaphragm cylinder band dynamic head of spring reset is opened or is pressed from both sides and closes soft pipeline.Pneumatic actuator is fixed on the frame of shaped as frame frame, control the solenoid directional control valve of pneumatic actuator and can select a normal off two position, three-way electromagnetic change valve, a port on it connects the single-acting diaphragm cylinder of spring reset, and one of two other mouthful connects compressed air cylinder, and another connects atmosphere.For improving functional reliability, not because fault exerts an influence, aforementioned normal off two position, three-way electromagnetic change valve can be selected the double-acting guide's Pneumatic solenoid valves of air-powered electromagnetic that can set working value, the air inlet of pneumatic pilot-valve connects connect barometric mouthful on outer container by tee pipe coupling, the delivery outlet of guide's air-operated solenoid valve main valve connects the single-acting diaphragm cylinder of spring reset, in the time that outer container internal pressure surprisingly exceedes setting value, pneumatic pilot-valve forces main valve connection to make two single-acting diaphragm cylinders enter compressed air, when being closed, drainage pipe folder in top decontrols the pipeline of bottom discharge opeing.The difference of two pneumatic actuators be folder what close drainage pipe is straight pressure head, decontrol bottom discharge opeing pipeline be the pressure head with eave tile, eave tile squeezing tube.When two electromagnetic valves of microprocessor control make single-acting diaphragm cylinder enter compressed air, outer container also enters air simultaneously, and inner pressurd vessel is discharged drain.
Negative pressure source can be motor-driven can be also manual.
On outer container, have the barometric interface of special connection, connect and have air gauge, air gauge is preferably digitized, so that coordinate with microprocessor.In the time that the air pressure in outer container exceedes predetermined value with the increase of drainage flow, controlling electromagnetic valve connection negative pressure source bleeds or discharges drain.
Inner pressurd vessel top can be connected with many pipelines or pipe joint, in the container cover of corresponding outer container, has corresponding port, and convenient series winding uses, for example, when the constant continuous negative pressure drain in thoracic cavity.
In the time not allowing of short duration termination drain, drain is crossed tee T with device for cleaning pipeline and is connected two cover negative pressure drainage devices with soft pipeline, when folder closes wherein a soft pipeline, opens an other soft pipeline, and two covering device rotations are used.When automation application, in the frame of aforementioned automatization platform, set up electromagnetic valve and pneumatic actuator.
Claims (10)
1. a medical negative pressure drainage device, comprise the outer container that do not contact with draining fluids in the use that can bear atmospheric pressure and be at least partly the inner pressurd vessel contacting with draining fluids in the soft use that can not bear atmospheric pressure, inner pressurd vessel is only by pipeline or pipe joint and the extraneous gas-tight container communicating, on outer container, have for the hole of bleeding, inner pressurd vessel is placed on outer container inside, inner pressurd vessel can separate with outer container, it is characterized in that: the pipeline or the pipe joint that connect with inner pressurd vessel outwards penetrate the hole outer container from the inside of outer container together with elastic sealing element, gap between the hole that confession pipeline on elastic sealing element closed conduit or pipe joint and outer container or pipe joint are passed through.
2. medical negative pressure drainage device according to claim 1, it is characterized in that: in the part that passes outer container hole, be provided with obstacle with the direct-connected pipe joint of inner pressurd vessel and stop pipe joint to be deviate from from hole, there is groove one end that pipe joint is connected with pipeline, card has obstacle in groove, and the inner pressurd vessel that the other end of pipe joint and soft high molecular polymer thin film are made fuses together.
3. medical negative pressure drainage device according to claim 2, it is characterized in that: made by soft high molecular polymer and be integrated with elastic sealing element with the direct-connected pipe joint of inner pressurd vessel, the inner pressurd vessel that one end of pipe joint and soft high molecular polymer thin film are made fuses together, other one end and the pipeline of pipe joint fuse together, there is hard bushing pipe the inside of pipe joint, and there is groove one end that pipe joint is connected with pipeline or has and the barb-like obstacle of pipe joint one.
4. according to claim 1 or 2, medical negative pressure drainage device described in 3, it is characterized in that: outer container is at least made up of container body and container cover two parts, flexible sealing ring or elastic sealing gasket between container body and container cover two parts, container body is connected by buckle with container cover, in container body bottom and container cover, there is the hole of passing through for pipe joint, except pipe joint place being connected with inner pressurd vessel, the wall of inner pressurd vessel is made up of soft high molecular polymer thin film, inner pressurd vessel is all contained in outer container except the part of outer container is stretched out in pipe joint, in the pipe joint being connected with the top of inner pressurd vessel, be connected with check valve, inner pressurd vessel is not communicated with mutually with outer container, the top of inner pressurd vessel and bottom are all connected with pipe joint, in the pipe joint being connected with the bottom of inner pressurd vessel, be connected with check valve, outer container passes into atmosphere or compressed air makes drain discharge inner pressurd vessel.
5. medical negative pressure drainage device according to claim 4, is characterized in that: on the wall of inner pressurd vessel, be pasted with the prestressed flexure strip of bending.
6. medical negative pressure drainage device according to claim 1, is characterized in that: in the pipe joint being connected with the top of inner pressurd vessel, be connected with check valve, two check valve series windings use, and float gravity-held check valve and duck-beak type check valve share same shell.
7. medical negative pressure drainage device according to claim 4, is characterized in that: check valve is installed in the inside with the direct-connected pipe joint of inner pressurd vessel.
8. medical negative pressure drainage device according to claim 4, it is characterized in that: with microprocessor and weight sensor, weight sensor is the form of desk-top electronic scale, the outer container that is set with inner pressurd vessel is placed in frame, frame is placed on the scale pan of desk-top electronic scale, has the outer container of control to bleed or the electromagnetic valve of air inlet in frame.
9. medical negative pressure drainage device according to claim 8, it is characterized in that: outer container is connected with the guide's air-operated solenoid valve that can set working value by pipeline, the delivery outlet of guide's air-operated solenoid valve main valve connects pneumatic actuator, in frame with multiple pneumatic actuators, the version of pneumatic actuator be the soft pipeline that is connected with inner pressurd vessel or outer container between anvil block and pressure head, the single-acting diaphragm cylinder band dynamic head of spring reset is opened or is pressed from both sides and closes soft pipeline.
10. according to claim 1 or 2, 3, described medical negative pressure drainage device, it is characterized in that: the bottom of inner pressurd vessel is connected with pipe joint, the bottom of outer container has for its hole of passing through, in the pipe joint being connected with the bottom of inner pressurd vessel, be connected with check valve, external container has a tee pipe coupling that connects inner pressurd vessel and outer container outside, this tee pipe coupling connects one section of flexible pipe, there is the closed pipe joint of closing cock or cap this hose connection termination, while discharging drain, the closed pipe joint in termination connects an inlet air filtration and air extractor, this device comprises another one tee pipe coupling, one of them joint connects negative pressure source by stop valve, another one joint tape splicing has the filter of stop valve, filter or stop valve lead to atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410208175.1A CN103933624B (en) | 2014-05-16 | 2014-05-16 | Medical negative pressure drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410208175.1A CN103933624B (en) | 2014-05-16 | 2014-05-16 | Medical negative pressure drainage device |
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| CN103933624A true CN103933624A (en) | 2014-07-23 |
| CN103933624B CN103933624B (en) | 2016-05-18 |
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| CN201410208175.1A Expired - Fee Related CN103933624B (en) | 2014-05-16 | 2014-05-16 | Medical negative pressure drainage device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111166595A (en) * | 2020-02-25 | 2020-05-19 | 四川大学华西第二医院 | Urethral catheterization package for obstetrical department |
| CN111921023A (en) * | 2020-08-14 | 2020-11-13 | 辽宁省肿瘤医院 | Suction device for abdominal surgery |
| CN112545899A (en) * | 2020-12-26 | 2021-03-26 | 黑龙江省医院 | Quick nursing lung-heat-clearing sputum discharging device for respiratory medicine |
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| CN103418044A (en) * | 2013-08-29 | 2013-12-04 | 苏州市亚新医疗用品有限公司 | Combined negative pressure drainage device |
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| US3780738A (en) * | 1971-12-08 | 1973-12-25 | Deaton Medical Co | Method and apparatus of medical suction |
| US4642088A (en) * | 1982-05-17 | 1987-02-10 | Solco Basel Ag | Apparatus for receiving and reinfusing blood |
| GB2207709A (en) * | 1987-07-28 | 1989-02-08 | Clinimed Ltd | Fluid collection and transportation device |
| US5269924A (en) * | 1991-07-26 | 1993-12-14 | Elp Rochat | Blood collecting and filtering apparatus |
| CN201194956Y (en) * | 2008-05-05 | 2009-02-18 | 潘伟 | Negative-pressure draining device with isolation bag |
| CN101961511A (en) * | 2010-06-08 | 2011-02-02 | 苏州新区华盛医疗器械厂 | Negative pressure drainage device |
| CN202724433U (en) * | 2011-12-06 | 2013-02-13 | 苏州陆氏塑业有限公司 | A negative pressure drainage device |
| CN103418044A (en) * | 2013-08-29 | 2013-12-04 | 苏州市亚新医疗用品有限公司 | Combined negative pressure drainage device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111166595A (en) * | 2020-02-25 | 2020-05-19 | 四川大学华西第二医院 | Urethral catheterization package for obstetrical department |
| CN111921023A (en) * | 2020-08-14 | 2020-11-13 | 辽宁省肿瘤医院 | Suction device for abdominal surgery |
| CN112545899A (en) * | 2020-12-26 | 2021-03-26 | 黑龙江省医院 | Quick nursing lung-heat-clearing sputum discharging device for respiratory medicine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103933624B (en) | 2016-05-18 |
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