CN103127601A - Portable negative pressure drainage device - Google Patents
Portable negative pressure drainage device Download PDFInfo
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- CN103127601A CN103127601A CN2011103730341A CN201110373034A CN103127601A CN 103127601 A CN103127601 A CN 103127601A CN 2011103730341 A CN2011103730341 A CN 2011103730341A CN 201110373034 A CN201110373034 A CN 201110373034A CN 103127601 A CN103127601 A CN 103127601A
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Abstract
The invention discloses a portable negative pressure drainage device which comprises a power supply circuit component, a pressure control switch, a pressure regulator, a vacuum pump and a gas-liquid bumper, wherein the pressure control switch is used for controlling the running of the vacuum pump, the pressure regulator is used for regulating drainage pressure, the vacuum pump is used for vacuum pumping with a method that an idler wheel is used for continuous squeezing of an elastic silicone tube, and the gas-liquid bumper is used for temporary storing of liquid and gas. The portable negative pressure drainage device is suitable for a patient after the patient receives a clinical operation and negative pressure suction is necessary for a wound or a cavity of the patient. The vacuum pump can effectively suck the gas and the liquid. The pressure switch can control the running of the vacuum pump. And then stable negative pressure drainage is achieved. Negative pressure needed by the drainage can be conveniently adjusted through a pressure regulating device of the pressure control switch. The portable negative pressure drainage device is enabled to be convenient to carry, long in using time, small in maintenance frequency, and capable of effectively reducing burden of medical staff or attendants due to the fact that a battery set is used for driving. The negative pressure drainage is not interrupted in a process of replacing a battery. Disassembly and assembly of the gas-liquid bumper and the silicone tube are convenient. A disposable gas-liquid bumper and a disposable silicone tube can be adopted and the gas-liquid bumper and the silicone tube can be repeatedly used after being disinfected.
Description
Technical field
The present invention relates to a kind of Portable negative-pressure drainage apparatus, relate in particular to a kind of for need to carry out the Portable drainage device of negative pressure drainage after clinical operation to wound or cavity.
Background technology
After operation, can there be some lacunas in the wound surface junction, and the wound surface place has partial necrosis tissue and wound surface to have the liquid secretion deposits yields, and these all can cause wound healing slow.Skin grafting in the plastic surgery is as example, the new skin of transplanting and the wound between matrix, if there is the interference of lacuna, slough or liquid secretion thing etc., can hinder the combination of new cutify and matrix, form the phenomenons such as similar blister, slow down the growth of blood capillary, hinder new cutify blood circulation, and may cause the serious consequences such as new cutify necrosis.Technology commonly used after operation is placed a tubule at wound surface, then adopts negative pressure equipment to carry out negative pressure-pumping to tubule, reduces lacuna, and in time gets rid of liquid etc.Existing negative pressure-pumping equipment is relatively simple and weak point is arranged, and equipment commonly used is the method continuous negative pressure drainage of property syringe, disposable vacuum suction box, central negative pressure attraction once.Adopt disposable syringe to aspirate, syringe is connected on drainage tube, toward post-tensioning and adopt cutting ferrule that syringe piston is fixed, this moment is in the inner negative pressure space that produces of syringe with syringe piston, and liquid or gas will enter into the syringe space under the swabbing action of negative pressure.The method is relatively simple, but because the space of syringe is little, after syringe pulls open, along with the suction of liquids and gases, can cause that in syringe, the space reduces gradually from high negative pressure, and suction capactity reduces gradually.When larger, when the gas leakage of pipeline or interface perhaps occurring, the suction capactity of syringe can lose efficacy very soon at gas and amount of liquid, and nursing staff and be not easy to find that suction lost efficacy, if change untimelyly, after negative pressure disappears, juice causes adverse consequences to wound.In addition, adopt the cutting ferrule fixed piston, because cutting ferrule is too simple, in case careless, may cause the cutting ferrule landing, due to negative pressure being arranged in syringe, during the cutting ferrule landing, push away before can causing syringe piston rapidly, with the percolating fluid inverse injection to the wound face, cause huge misery to patient, and very easily tear wound, cause wound to worsen.
Another kind of mode is to adopt disposable vacuum suction box, and disposable vacuum suction box is an elastic container, receives on drainage tube after box is flattened again.Disposable vacuum suction box space is larger than syringe, keep the negative pressure time slightly long, and can conveniently find out from the distortion of disposable vacuum suction box whether its negative pressure lost efficacy, but there is the problem of pressure instability equally in this mode.
Some hospitals that the central negative pressure interface is arranged in the ward adopt the device of the direct drain of central negative pressure more.This device is comprised of a control valve, liquid-collecting bottle and pipeline.Control valve connects central negative pressure, regulates by control valve and aspirates negative pressure and liquid-collecting bottle and pipeline are aspirated, and when reaching required negative pressure value, closes control valve.This mode can effectively form negative pressure drainage, but appoints the problem that so has pressure instability.Negative pressure value in liquid-collecting bottle can reduce along with entering of liquids and gases causes negative pressure value equally.Therefore need medical personnel or entourage often to notice that the pressure in liquid-collecting bottle changes,, need to open control valve and aspirate during lower than certain required value when negative pressure value.Increase medical personnel's workload, and at night, caused the inconvenience profit.And because pipeline one direct sum central negative pressure is connected, make patient have to lie for a long time on one's sick bed, can not Go to ground activity, patient's psychology is caused certain burden.
Therefore can find out existing these equipment, all have many deficiencies in the application of negative pressure drainage, need a kind of can stablizing to control negative pressure, long-play, non-maintaining and want the little lightweight depression drainage device that can be convenient for carrying of volume.
Summary of the invention
In order to solve the deficiency of present negative pressure drainage technology, reach pressure stability, negative pressure is adjustable, safeguard less, purpose easy to carry, to improve reliability and the practicality of armarium, the Portable negative-pressure drainage apparatus of the invention provides a kind of pressure stability, safeguard less, negative pressure is adjustable provides a kind of convenient and reliable armarium for the rear wound of performing the operation needs the patient of negative pressure drainage.
The invention provides a kind of Portable negative-pressure drainage apparatus, comprise that the Liquid and gas damper of power circuit components, temporary liquids and gases, the pressure control switch of controlling the vacuum pump operation, the continuously extruded flexible silicon sebific duct of employing roller carry out the vacuum pump of vacuum draw and the pressure regulator of pressure control switch being regulated to change pressure.
Described power circuit components comprises dry cell batteries, wire and diode, and described diode can prevent effectively that in the anti-loaded situation of battery plus-negative plate, motor reversal causes gas-liquid inverse injection wound.
Described Liquid and gas damper is the sealed container that contains three interfaces, comprises that Liquid and gas damper body, drainage tube interface, vacuum pump interface, pressure tube, flexible pipe and weight form.Described drainage tube interface is in order to connect the drainage tube of drawing from wound.Described vacuum pump interface connects the vacuum pump silica gel tube.The vacuum pump interface is communicated with the flexible pipe of Liquid and gas damper inside simultaneously.Described flexible pipe imbibition end connects the weight of hollow, and flexible pipe imbibition end can move in Liquid and gas damper, makes the imbibition end be in extreme lower position with preferential imbitition.Described pressure tube stretches into the Liquid and gas damper center, and pressure is passed to pressure control switch, and prevents that liquid from flowing into pressure tube.
The pressure control switch of described control vacuum pump operation comprises bourdon tube, pressure transmission flexible pipe, motion bar, contact switch.Described bourdon tube one end is fixed, the chain connection in the middle of the other end and motion bar.Described pressure transmission flexible pipe imports bourdon tube with the pressure in Liquid and gas damper.Hinge in the middle of described motion bar is connected with bourdon tube, and motion bar left end hinge position is fixed, and right-hand member acts on contact switch.Described motion bar is subject to the promotion of bourdon tube distortion, promotes the contact switch action.Described contact switch comprises the holder of upper spring sheet, lower spring sheet, mounting spring sheet.Spring leaf is installed on the spring leaf holder, and the left end extension is upper lug and lower lug, in order to connect wire.Upper contact is installed on upper spring sheet right-hand member downside, and lower contact is arranged on lower spring sheet right-hand member upside, and two contact positions are relative.When negative pressure reduced in Liquid and gas damper, the bourdon tube distortion drove motion bar and rotates counterclockwise, and the motion bar free end promotes to move on the lower spring sheet, and lower contact contacts with upper contact, the touch switch circuit conducting, and vacuum pump starts and Liquid and gas damper is aspirated.When negative pressure in Liquid and gas damper raise, bourdon tube promoted motion bar and clockwise rotates, and the lower spring sheet moves down lower contact under the elastic reaction of self, until two contacts separately, contact switch opens circuit, and vacuum pump is out of service, negative regulation.
Described vacuum pump comprises direct current generator, change speed gear box, wheel disc, roller, pipe clamp, pipe clamp alignment pin, spring, silica gel tube.Described direct current generator starts when contact switch contacts, and reduces rotating speed and improves torque by the change speed gear box that is connected on direct current generator.Described wheel disc is connected to the output shaft of change speed gear box and does and clockwise rotates.Described rotating disk is the regular polygon structure, and on each drift angle, roller free to rotate is installed.Described pipe clamp is a semicircle snap ring, has certain interval to be used to push silica gel tube between pipe clamp and roller.Described silica gel tube is a kind of elasticity body, and forms exclusion seal in extruding place distortion.Described roller is under the drive of wheel disc, and with the continuously extruded silica gel tube of pipe clamp, the exclusion seal of formation moves clockwise along silica gel tube.Described silica gel tube recovers pipe after crimp, its elastic return makes the crush seal rear present vacuum and forms the suction capactity of silica gel tube.
Described pressure-regulating device is comprised of adjusting knob, threaded rod, hold-doun nut.Described threaded rod is connected with adjusting knob and coordinates with hold-doun nut.Described threaded rod lower end acts on the upper spring sheet.The rotation adjusting knob, threaded rod is moved under the effect of hold-doun nut, changing contact switch contact contact position, and then changes the break-make pressure of contact switch.By position of rotation and the corresponding break-make pressure of demarcating knob, and identify the negative pressure scale on knob, can conveniently regulate pressure.
Further, also comprise pipe clamp and pipe clamp alignment pin, described pipe clamp left end is chain connection, and right-hand member coordinates with the pipe clamp alignment pin.Move down the pipe clamp alignment pin, pipe clamp is opened, and silica gel tube can be introduced between pipe clamp and roller, and the pipe clamp that turns clockwise compresses silica gel tube, and the pipe clamp alignment pin moves down under the ramp effect of pipe clamp, until pin pipe clamp.The silica gel tube easy accessibility.
Further, also comprise the Liquid and gas damper draw-in groove, Liquid and gas damper is fixed on draw-in groove, and conveniently detachable.
Compared with prior art, Portable negative-pressure drainage apparatus has following advantage:
1, the present invention adopts pressure control switch to control the vacuum pump operation, makes negative pressure can stablize control, negative pressure can not occur large fluctuation occurs, and the size of drainage flow is had the scope of application widely.
2, pressure-regulating device is set, can according to the actual requirements, regulates drain pressure.
3, adopt battery powered, whole drainage device volume is little, lightweight, can be convenient for carrying.
4, the liquid-collection bag interface is set, when liquid reaches a certain amount of in liquid-collection bag, conveniently replaced liquid-collection bag or liquid in liquid-collection bag is processed.
5, adopting the continuously extruded silica gel tube of roller to produce negative pressure space aspirates, in outage (running down of battery) situation, the sealing that roller extruding silica gel tube forms can be not destroyed, can not cause the interior negative pressure of Liquid and gas damper to be destroyed, and greatly improved the negative pressure reliability.Only need change battery and get final product, when having avoided changing in additive method, negative pressure is destroyed, affects the negative pressure state of wound.
6, adopt pressure to control the vacuum pump operation, the running time of vacuum pump is short, and drainage device is long service time, and power consumption is low, safeguards few.Can be applicable to operation and be accomplished to wound and no longer need the whole time period of negative pressure drainage, during do not need to change.
7 parts that need to change sterilization all are easy to dismounting, can conveniently pull down Liquid and gas damper and silica gel pipeline, clean and disinfect, and also use disposable gas-liquid buffer and silica gel tube, and use cost is cheap.
Description of drawings
Fig. 1 is the cross section view of Portable negative-pressure drainage apparatus;
Fig. 2 is the structural representation of pressure control switch.
Drawings; 1 - case 2 - Battery Group 3 - DC machine 4 - Transmission 5 - Roulette 6 - roller 7 - Pipe card 8 - Tube card positioning pin 9 - spring 10 - silicone tube 11 - set of bags interface 12 - vacuum interface 13 - gas-liquid buffer 14 - flexible hose 15 is - weight 16 - drainage tube connector 17 - pressure transmission pipe 18 - card slot 19 - pass pressure hose 20 - pressure control switch 21 - contact switch 22 - power switch 23 - diodes 24 - pressure adjustment knob 25 - pressure control switch interface 26 - Bourdon tube holder 27 - Bourdon tube 28 - fixed hinge 29 - active lever hinge 30 - activity bar 31 - contacts switch next spring piece 32 - last spring contact switch 33 - under contacts 34 - on contact 35 - fixing nut 36 - screw 37 - pressure adjustment knob 38 - spring holder 39 - on lug 40 - under lug
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
Fig. 1 is the structural representation of Portable negative-pressure drainage apparatus, and Fig. 2 is the pressure control switch structural representation, as shown in the figure.Portable negative-pressure drainage apparatus comprises that power circuit components, vacuum pump system, Liquid and gas damper and pressure control switch and pressure regulator form.
Power circuit components comprises dry cell batteries 2, on and off switch 22, wire, diode 23 and external power interface.Set of cells 2 makes drainage device to be convenient for carrying for Portable negative-pressure drainage apparatus provides power resources.Wire connected battery group 2, on and off switch 22, diode 23, pressure control switch 20 and direct current generator 3.On and off switch 22 is controlled whole connecting and disconnecting of the circuit, and 20 of pressure control switch start direct current generator 3 when negative pressure is low, close direct current generator 3 when negative pressure is high.When diode 23 prevented that battery plus-negative plate is anti-loaded, motor 3 counter-rotatings were injected wound with drainage-fluid.
Vacuum pump system comprises that direct current generator 3, change speed gear box 4, wheel disc 5, roller 6, pipe clamp 7, pipe clamp alignment pin 8, spring 9, silica gel tube 10, liquid-collection bag interface 11 form.When negative pressure was low, pressure control switch 20 was connected, and direct current generator 3 is opened, and change speed gear box 4 reduces and improve its torque with the rotating speed of direct current generator 3.Change speed gear box 4 output shafts connect rotating disks 5 and do and clockwise rotate.Rotating disk 5 is the regular polygon structure, and on each drift angle, roller 6 free to rotate is installed.Pipe clamp 7 is arc-shaped structure, and is concentric with rotating disk 5, and certain interval (silica gel tube internal diameter size is looked in this gap and wall thickness determines, less than 2 times of wall thickness) is arranged between pipe clamp 7 and roller 6.Silica gel tube 10 is placed between the gap of pipe clamp 7 and roller 6.Less than 2 times of wall thickness, silica gel tube 10 deforms under the squeezing action of roller 6 and pipe clamp 7 due to this gap, and in silica gel tube, the space is cut off, and forms sealing.When wheel disc 5 rotated, pipe clamp 7 and silica gel tube 10 positions did not change.Roller 6 is along the change speed gear box 4 circumferential translations of output shaft, and roller 6 rotates and pushes silica gel tube 10 along roller shaft simultaneously.Silica gel tube is extruded the position of distortion and moves clockwise along change speed gear box 4 output shafts.Because elastic return after silica gel tube 10 crimps is pipe, crush seal rear formation vacuum area.Wheel disc 5 drives the continuously extruded silica gel tube 10 of a plurality of rollers 6, makes silica gel tube 10 have continuous vacuum capability.
Pipe clamp 7 left ends are chain connection, and right-hand member coordinates with pipe clamp alignment pin 8.Down sliding pipe clamp alignment pin 8, pipe clamp 7 can be opened, silica gel tube 10 is introduced between pipe clamp 7 and roller 6, the pipe clamp 7 that turns clockwise compresses silica gel tube 10, and pipe clamp alignment pin 8 moves down under the end chamfer effect of pipe clamp 7, holddown spring 9, until after pinning pipe clamp 7, spring 9 promotes to move on pipe clamp alignment pin 8, complete silica gel 10 and install.Under this mode, silica gel tube 10 easy accessibility.
Vacuum pump system carries out vacuum draw to Liquid and gas damper 13, and Liquid and gas damper 13 is the cylindricality transparent plastic container, has certain gas-liquid storage capacity as pressure buffer container, and is used for connecting each pipeline.Liquid and gas damper 13 is fixed on housing 1 by draw-in groove 18, makes the Liquid and gas damper 13 can easy disassembly.Respectively there is an interface at Liquid and gas damper 13 two ends, and right-hand member vacuum pump interface 12 connects vacuum pump silica gel tube 10.The flexible pipe 14 that vacuum pump interface 12 is communicated with in Liquid and gas damper 13.Flexible pipe 14 other ends pack into the weight 15 of a hollow.When the Portable negative-pressure drainage apparatus position changes, weight 15 will drag flexible pipe 14 motions under action of gravity, make flexible pipe 14 can preferentially aspirate the interior liquid of Liquid and gas damper 13, if the interior liquid of Liquid and gas damper 13 is too much accumulated, not only gain in weight, and might cause liquid to enter pressure tube 17, affect pressure and control.In addition, pressure tube 17 is deep into the center of Liquid and gas damper 13, can prevent effectively that liquid from entering pressure tube 17.Pressure in Liquid and gas damper 13 transmits to pressure control switch 20 by pressure tube 17.
When the negative pressure in Liquid and gas damper 13 reduces, it is large that the radius of curvature of bourdon tube 27 becomes, driving hinges 29 is moved upward, when making motion bar 30 rotate counterclockwise along fixed hinge 28, motion bar 30 free ends promote 31 distortion of lower spring sheet, the contact point 33 of installing on lower spring sheet 31 moves up, and when lower contact point 33 touches contact point 34, is connected to form path by up and down spring leaf and upper and lower contact between lug 39 and lug 40.If this moment, on and off switch 22 was in closure state, set of cells 2, on and off switch 22, contact switch 21 and direct current generator 3 will form path.Direct current generator 3 starts, and drives vacuum pump Liquid and gas damper 13 is aspirated.When the negative pressure in Liquid and gas damper 13 raise, motion bar 30 turned clockwise, and lower spring sheet 31 moves down, separate between upper and lower contact, and circuit breaker, vacuum pump quits work, and stops suction.
Because the deflection of bourdon tube 27 is corresponding with negative pressure value, therefore the displacement of lower contact 33 is also corresponding with the negative pressure in Liquid and gas damper 13, position by adjusting upper contact 34 is the contact position of scalable upper and lower contact, thereby reaches the purpose of regulating Liquid and gas damper 13 internal pressures.Pressure-regulating device comprises adjusting knob 37, threaded rod 36, hold-doun nut 35.Threaded rod 36 is connected with adjusting knob 37 and coordinates with hold-doun nut 35.Threaded rod 36 lower ends act on upper spring sheet 32.Rotation adjusting knob 37, threaded rod is moved under the effect of hold-doun nut 35, with change contact switch 21 contact contact positions, and then the break-make pressure of change contact switch 21.By position of rotation and the corresponding break-make pressure of demarcating knob 37, and identify the negative pressure scale on knob 37, can conveniently regulate pressure.
Liquid and gas damper 13 and silica gel tube 10 need dismounting to carry out cleaning and sterilizing or replacing after use.First open pipe clamp 7 by drop-down pipe clamp alignment pin 8, take off silica gel 10, take off pressure transmission flexible pipe 19 from pressure control switch interface 25, take off Liquid and gas damper 13 from draw-in groove 18.Equally, sterile-processed or disposable Liquid and gas damper 13 and silica gel tube 10 are installed before use, first silica gel tube 10 is connected on vacuum pump interface 12, with Liquid and gas damper 13 draw-in groove 18 of packing into, pressure transmission flexible pipe 19 is connected on pressure control switch interface 25, then silica gel tube 10 is put between pipe clamp 7 and roller 6, press down pipe clamp 7 and pin pipe clamp 7, to be connected to from the drainage tube that wound is drawn drainage tube interface 16, liquid-collection bag will be connected on the liquid-collection bag interface at last, namely complete whole installation.Dry cell batteries 2 is installed, presses on and off switch 22, Portable negative-pressure drainage apparatus gets final product work.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (3)
1. a Portable negative-pressure drainage apparatus, is characterized in that: comprise that the Liquid and gas damper (13) of power circuit components, temporary liquids and gases, the pressure control switch (20) of controlling the vacuum pump operation, employing roller (6) continuously extruded flexible silicon sebific ducts (10) carry out the vacuum pump of vacuum draw and the pressure regulator of pressure control switch (20) being regulated to change pressure.
Described power circuit components comprises dry cell batteries (2), wire and diode (23), and described diode (23) can prevent effectively that in the anti-loaded situation of battery plus-negative plate, motor (3) counter-rotating causes gas-liquid inverse injection wound.
Described Liquid and gas damper (13) comprises Liquid and gas damper body (13), drainage tube interface (16), vacuum pump interface (12), pressure tube (17), flexible pipe (14) and weight (15) for containing the sealed container of three interfaces.Described drainage tube interface (16) is in order to connect the drainage tube of drawing from wound.Described vacuum pump interface (12) connects vacuum pump silica gel tube (10).Vacuum pump interface (12) is communicated with the inner flexible pipe (14) of Liquid and gas damper (13) simultaneously.Described flexible pipe (14) imbibition end connects the weight (15) of hollow, makes flexible pipe (14) imbibition end to move in Liquid and gas damper (13), and makes the imbibition end be in extreme lower position with preferential imbitition.Described pressure tube (17) stretches into Liquid and gas damper (13) center, and pressure is passed to pressure control switch (20), and prevents that liquid from flowing into pressure tube (17).
The pressure control switch (20) of described control vacuum pump operation comprises bourdon tube (27), pressure transmission flexible pipe (19), motion bar (30), contact switch (21).Described pressure transmission flexible pipe (19) connects pressure tube (17) and the pressure in Liquid and gas damper (13) is imported bourdon tube (27).Described bourdon tube (27) one ends are fixed on bourdon tube holder (26).Hinge (29) on described motion bar (30) is connected with bourdon tube (27), and motion bar (30) left end fixed hinge (28) position is fixed, and right-hand member acts on contact switch (21).Described motion bar (30) is subject to the promotion of bourdon tube (27) distortion, promotes contact switch (21) action.Described contact switch (21) comprises upper spring sheet (32), lower spring sheet (31), spring leaf holder (38), upper lug (39) and lower lug (40).Spring leaf is installed on spring leaf holder (38), and the left end extension is upper lug (39) and lower lug (40), in order to connect wire.Upper contact (34) is installed on upper spring sheet (32) right-hand member downside, and lower contact (34) is arranged on lower spring sheet (31) right-hand member upside, and two contact positions are relative.When negative pressure reduces in Liquid and gas damper (13), bourdon tube (27) distortion, driving motion bar (30) rotates counterclockwise, motion bar (30) free end promotes to move on lower spring sheet (31), lower contact (33) contacts with upper contact (34), contact switch (21) circuit turn-on, vacuum pump starts and Liquid and gas damper (13) is aspirated.When negative pressure in Liquid and gas damper (13) raises, bourdon tube (27) promotes motion bar (30) and clockwise rotates, lower spring sheet (31) makes lower contact (33) move down under the elastic reaction of self, until two contacts separately, contact switch (21) opens circuit, vacuum pump is out of service, negative regulation.
Described vacuum pump comprises direct current generator (3), change speed gear box (4), wheel disc (5), roller (6), pipe clamp (7), pipe clamp alignment pin (8), spring (9), silica gel tube (10).Described direct current generator (3) starts when contact switch (21) contacts, and reduces rotating speed and improves torque by the change speed gear box (4) that is connected on direct current generator (3).Described wheel disc (5) is connected to the output shaft of change speed gear box (4) and does and clockwise rotates.Described rotating disk (5) is the regular polygon structure, and on each drift angle, roller (6) free to rotate is installed.Described pipe clamp (7) is a semicircle snap ring, has certain interval to be used to push silica gel tube (10) between pipe clamp (7) and roller (6).Described silica gel tube (10) is a kind of elasticity body, and forms exclusion seal in extruding place distortion.Described roller (6) is under the drive of wheel disc (5), and with the continuously extruded silica gel tube of pipe clamp (7) (10), the exclusion seal of formation is mobile clockwise along silica gel tube (10).Described silica gel tube (10) recovers pipe after crimp, its elastic return makes the crush seal rear present vacuum and forms the suction capactity of silica gel tube (10).
Described pressure-regulating device is comprised of adjusting knob (37), threaded rod (36), hold-doun nut (35).Described threaded rod (36) is connected with adjusting knob (37) and coordinates with hold-doun nut (35).Described threaded rod (36) lower end acts on upper spring sheet (32).Rotation adjusting knob (37), threaded rod is moved under the effect of hold-doun nut (35), changing contact switch (21) contact contact position, and then changes the break-make pressure of contact switch (21).By position of rotation and the corresponding break-make pressure of demarcating knob (37), and at the upper sign of knob (37) negative pressure scale, can conveniently regulate pressure.
2. Portable negative-pressure drainage apparatus described according to claim 1, it is characterized in that: also comprise pipe clamp (7) and pipe clamp alignment pin (8), described pipe clamp (7) left end is chain connection, and right-hand member coordinates with pipe clamp alignment pin (8).Move down pipe clamp alignment pin (8), pipe clamp (7) is opened, silica gel tube (10) can be introduced between pipe clamp (7) and roller (6), pipe clamp (7) turns clockwise, compress silica gel tube (10), pipe clamp alignment pin (8) moves down under the ramp effect of pipe clamp, until pin pipe clamp (7).Silica gel tube (10) easy accessibility.
3. Portable negative-pressure drainage apparatus described according to claim 1 or 2, is characterized in that: also comprise Liquid and gas damper draw-in groove (18), the conveniently detachable Liquid and gas damper of described draw-in groove (18) (13).Drainage tube interface (16) is supporting with drainage tube, vacuum pump adapter (12) is supporting with silica gel tube (10), pressure transmission flexible pipe (19) is supporting with pressure tube (17) and pressure control switch interface (25), and liquid-collection bag interface (11) is supporting with liquid-collection bag.Pipeline connects with corresponding interface is convenient.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103730341A CN103127601A (en) | 2011-11-22 | 2011-11-22 | Portable negative pressure drainage device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103730341A CN103127601A (en) | 2011-11-22 | 2011-11-22 | Portable negative pressure drainage device |
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| CN103127601A true CN103127601A (en) | 2013-06-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109091710A (en) * | 2018-09-11 | 2018-12-28 | 南通大学附属医院 | A kind of portable attractor |
| CN109172891A (en) * | 2018-10-19 | 2019-01-11 | 河南中医药大学 | A kind of splanchnocoel pressure stabilizing suction device |
| CN109172892A (en) * | 2018-10-19 | 2019-01-11 | 河南中医药大学 | A kind of splanchnocoel puncture leveling style drainage device |
| CN109331242A (en) * | 2018-09-28 | 2019-02-15 | 德州飚丰信息技术有限公司 | Full-automatic medical drainage device |
| CN112933310A (en) * | 2021-02-08 | 2021-06-11 | 龙丹 | Negative pressure auxiliary drainage treatment device |
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| CN201200652Y (en) * | 2008-03-31 | 2009-03-04 | 天津市同业科技发展有限公司 | Portable vacuum suction device |
| CN202637684U (en) * | 2011-11-22 | 2013-01-02 | 黎柴佐 | Portable negative-pressure drainage device |
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| WO2007013064A1 (en) * | 2005-07-24 | 2007-02-01 | Carmeli Adahan | Suctioning system, method and kit |
| CN201200652Y (en) * | 2008-03-31 | 2009-03-04 | 天津市同业科技发展有限公司 | Portable vacuum suction device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109091710A (en) * | 2018-09-11 | 2018-12-28 | 南通大学附属医院 | A kind of portable attractor |
| CN109331242A (en) * | 2018-09-28 | 2019-02-15 | 德州飚丰信息技术有限公司 | Full-automatic medical drainage device |
| CN109172891A (en) * | 2018-10-19 | 2019-01-11 | 河南中医药大学 | A kind of splanchnocoel pressure stabilizing suction device |
| CN109172892A (en) * | 2018-10-19 | 2019-01-11 | 河南中医药大学 | A kind of splanchnocoel puncture leveling style drainage device |
| CN109172892B (en) * | 2018-10-19 | 2020-10-27 | 河南中医药大学 | Steady drainage device for pleuroperitoneal cavity puncture |
| CN109172891B (en) * | 2018-10-19 | 2020-10-27 | 河南中医药大学 | Pleuroperitoneal cavity pressure stabilizing suction device |
| CN112933310A (en) * | 2021-02-08 | 2021-06-11 | 龙丹 | Negative pressure auxiliary drainage treatment device |
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Application publication date: 20130605 |