CN109010947A - Wound-surface negative pressure attraction system - Google Patents
Wound-surface negative pressure attraction system Download PDFInfo
- Publication number
- CN109010947A CN109010947A CN201810930938.1A CN201810930938A CN109010947A CN 109010947 A CN109010947 A CN 109010947A CN 201810930938 A CN201810930938 A CN 201810930938A CN 109010947 A CN109010947 A CN 109010947A
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- Prior art keywords
- communication port
- negative pressure
- wound
- shell
- chamber
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- 238000004891 communication Methods 0.000 claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000006698 induction Effects 0.000 claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 230000008878 coupling Effects 0.000 claims description 24
- 238000010168 coupling process Methods 0.000 claims description 24
- 238000005859 coupling reaction Methods 0.000 claims description 24
- 239000002274 desiccant Substances 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 239000003814 drug Substances 0.000 abstract description 3
- 206010052428 Wound Diseases 0.000 description 46
- 208000027418 Wounds and injury Diseases 0.000 description 46
- 230000000694 effects Effects 0.000 description 13
- 210000001519 tissue Anatomy 0.000 description 11
- 230000001338 necrotic effect Effects 0.000 description 9
- 239000012528 membrane Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 230000035876 healing Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- 230000029663 wound healing Effects 0.000 description 4
- 230000036770 blood supply Effects 0.000 description 3
- 230000012010 growth Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 208000025865 Ulcer Diseases 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001684 chronic effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003447 ipsilateral effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000017074 necrotic cell death Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 231100000397 ulcer Toxicity 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010011985 Decubitus ulcer Diseases 0.000 description 1
- 206010063560 Excessive granulation tissue Diseases 0.000 description 1
- 208000014770 Foot disease Diseases 0.000 description 1
- 208000005230 Leg Ulcer Diseases 0.000 description 1
- 208000005764 Peripheral Arterial Disease Diseases 0.000 description 1
- 208000030831 Peripheral arterial occlusive disease Diseases 0.000 description 1
- 208000004210 Pressure Ulcer Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 210000001126 granulation tissue Anatomy 0.000 description 1
- 230000001524 infective effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002993 sponge (artificial) Substances 0.000 description 1
- 238000007460 surgical drainage Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000008467 tissue growth Effects 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
Classifications
-
- A61M1/0023—
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/05—Bandages or dressings; Absorbent pads specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
-
- 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
- A61M1/88—Draining devices having means for processing the drained fluid, e.g. an absorber
-
- 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
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
- A61M1/96—Suction control thereof
- A61M1/962—Suction control thereof having pumping means on the suction site, e.g. miniature pump on dressing or dressing capable of exerting suction
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- External Artificial Organs (AREA)
Abstract
This application involves medical instruments fields, disclose a kind of Wound-surface negative pressure attraction system, including shell, are equipped with chamber and communication port, communication port and chamber in shell；The negative pressure mechanism for making communication port form negative pressure is equipped in chamber, negative pressure mechanism includes being slidably connected at the indoor slide bearings of chamber, and slide bearings are removably connected with the first sealing ring close to one end of communication port；Shell is removably connected with spring fixed seat far from one end of communication port, and the first socket is provided on spring fixed seat, push rod bolt is connected in the first socket；The two sides of first socket are equipped with shaft, and shaft is rotatably connected on spring fixed seat, and shaft is equipped with spring, and the other end of spring is fixed on the fixed part of slide bearings.This programme compact is light, facilitates patient mobile and carries, and noise is smaller, cheap without charging, and the basic medical units such as community is suitble to use, can largely Economy type medicine funds, have good value for applications.
Description
Technical field
The invention belongs to medical instruments fields.
Background technique
With the development of society, the improvement of people's living standards, the various acute and chronic surface of a wound are more and more, such as sugar
Urinate pressure ulcer caused by foot disease ulcer, venous leg ulcers, long-term bed, peripheral arterial disease causes topical ulcers, burns
The surface of a wound caused by wound and operation.Although current medicine has a great development, the treatment of wound healing is still a challenge.
Negative-pressure sealed drainage technology (vacuum sealing drainage, VSD) be a kind of various complicated surface of a wound of processing and
For the completely new approach of deep drainage, for existing various surgical drainage technologies, VSD technology be it is a kind of it is revolutionary into
Exhibition.The technology was initiated in 1992 by traumatology department of German ULM university doctor Fleischmann, was used for field of orthopaedics at first
Treat soft tissue defects and infective wound surface.1994, professor Qiu Huade etc. took the lead in introducing this Novel drainage technology at home.
The many scholars of recent domestic are applied to the treatment of the various acute and chronic complexity surface of a wound or promote the side of surviving of transplanting skin
Face achieves good effect.By the nearly more than ten years clinical application and actively development, VSD technology have become processing orthopaedics and
The standard care mode of a variety of surface of a wound of surgery.
Existing vacuum extractor includes negative pressure generating portion and the drainage end contacted with the surface of a wound, and negative pressure generating portion is usual
It is pumped using electrodynamic type vacuum suction.In use, being coated with dressing on the surface of a wound, and dressing is sealed up with medical transparent membrane, then
An aperture is opened on medical transparent membrane and is connected to a communicating pipe, is connected with drainage end communicating pipe.This electrodynamic type negative pressure is inhaled
Often volume is larger for lead device, needs plug-in or charging work, and patient is inconvenient to carry, seriously affects patient's out-of-bed activity, no
Conducive to the improvement of surface of a wound blood supply, postpone the healing of the surface of a wound.In addition, vacuum extractor be typically placed in when in use patient bedside or
For person away from the closer place of patient, the noise that vacuum suction pump is generated when generating negative pressure is larger, this rest and psychology to patient
It has some impact on.
Summary of the invention
The purpose of the present invention is to provide a kind of Wound-surface negative pressure attraction systems, need to charge to solve equipment in the prior art
Or plug-in, problem inconvenient to carry and larger noise.
In order to achieve the above object, base case of the invention provides Wound-surface negative pressure attraction system, including shell, in shell
Equipped with chamber, one end of shell is equipped with communication port, communication port and chamber；It is equipped in chamber for making communication port form negative pressure
Negative pressure mechanism, the negative pressure mechanism includes being slidably connected at the indoor slide bearings of chamber, and the slide bearings are close to even
One end of port, which is removably connected with, to be equipped with the first sealing ring of cavity seal, slide bearings far from one end of communication port
Fixed part；Shell is removably connected with spring fixed seat far from one end of communication port, and first is provided on the spring fixed seat and is inserted
Mouthful, push rod bolt is connected in the first socket；The two sides of first socket are equipped with shaft, and it is solid that shaft is rotatably connected on spring
In reservation, and shaft is equipped with spring, and the other end of spring is fixed on the fixed part of slide bearings.
The principle of this base case is:
In use, being coated with medical sponge dressing on the surface of a wound, and dressing is sealed up with medical transparent membrane, medical
It opens an aperture and is connected to a communicating pipe in bright film center.By push rod bolt be inserted into the first socket in and with slide bearings phase
It supports, slide bearings and the first sealing ring form a moveable piston at this time, by pushing push rod bolt, make to slidably support
The direction that seat drives the first sealing ring toward close communication port is mobile and the air of chamber left part is discharged.By communicating pipe and communication port
Connection, so that this system be made to be connected to the surface of a wound.Then, push rod bolt is extracted from the first socket, slide bearings, which lose, to be pushed away
Bar bolt abutting effect after generate the trend to move right under the action of spring-return power, make chamber left part, communication port and
Communicating pipe forms negative pressure, so that the necrotic tissue on the surface of a wound is adsorbed on sponge, realizes the cleaning of surface of a wound necrotic tissue, increases
Surface of a wound part blood supply promotes granulation tissue growth, accelerates wound healing.
The beneficial effect of this base case is:
This programme compact is light, facilitates patient mobile and carries, substantially increases the convenience and treatment of patient's treatment
Effect property；This programme by push rod bolt and slide bearings it is mutually matched it is this it is mechanical in the way of form negative pressure, noise compared with
It is small, patient will not be interfered, substantially increase patient's comforts of use.In addition, this programme makes without charging or plug-in
With, it is cheap, be suitble to the basic medical units such as community to use, can largely Economy type medicine funds, have and push away well
Wide use value.
Scheme two: this is the preferred of basic scheme, and the shell is removably connected with right end cap far from one end of communication port,
Right end cap is located at the outside of spring fixed seat, and right end cap, which is equipped with, can hold the second socket that push rod bolt passes through, and second inserts
Mouth is opposite with the first tap position.
Right end cap can make the space of shell formation opposing seal, to the indoor slide bearings of chamber, spring, spring fixed seat
Equal components play the role of protection；In addition, the second socket being arranged on right end cap can play guiding and limit to push rod bolt
Effect, keeps the movement of push rod bolt more steady.
Scheme three: this is the preferred of basic scheme, is equipped in first socket for being positioned to push rod bolt
Positioning mechanism, the positioning mechanism include the fixture block being arranged in the first socket, and the side of push rod bolt is equipped with positive stop strip, limit
Item is equipped with the groove matched with fixture block, and positive stop strip can be inserted into the first socket after being extruded together with push rod bolt.
By being mutually clamped for fixture block and groove, it can make push rod bolt that slide bearings and the first sealing ring be pushed to be moved to
Positioning can be achieved after certain position, on the one hand push rod bolt can be stored in shell, anti-throw-out lever bolt is lost, on the other hand
Also facilitate patient that other component (communicating pipe being such as connected to communication port) is adjusted in use.
Scheme four: this is the preferred of basic scheme, and the shell is equipped with close to one end of communication port for absorbing surface of a wound water
Point water-absorption mechanism, the two sides of water-absorption mechanism respectively with communication port, chamber.
When carrying out absorption cleaning to the surface of a wound, the moisture on the surface of a wound may be entered in chamber by communication port, and be inhaled
Water dispenser structure can then absorb this partial moisture, prevent moisture from entering in chamber and the indoor component of chamber is damaged and polluted.
Scheme five: this is preferred for scheme four, and the water-absorption mechanism includes the porous support plate being fixed on shell, described
Porous support plate and shell form water sucting cavity, the water sucting cavity and communication port, chamber between the side of communication port, and
Several desiccant for water suction are disposed in water sucting cavity；The end of water sucting cavity offers entrance, and the entrance is combined with
Second sealing ring；The side wall of water sucting cavity is equipped with strainer, and the aperture of the strainer is less than the diameter of desiccant.
Water sucting cavity and communication port and chamber, it is ensured that chamber, communication port can be formed together negative pressure；It is dry in water sucting cavity
Drying prescription can fall the moisture absorption for entering water sucting cavity, prevent moisture from entering in chamber, extend the service life of this system；And it inhales
The entrance of water cavity can facilitate patient or medical worker to replace desiccant, make this system can be in the treatment of same patient
It is reused in journey.On the one hand strainer can prevent desiccant from entering communication port perhaps in chamber to avoid communication port or more
The necrotic tissue being adsorbed near communication port, on the other hand can also be blocked at communication port, prevent necrosis by the blocking of hole support plate
Tissue enters in water sucting cavity the drying effect for influencing desiccant.
Scheme six: this is the preferred of basic scheme, is removably connected with binding board outside the shell, opens on the binding board
Equipped with the card slot for placing shell, the bandage for binding is fixed on the card slot.
In use, shell can be fastened on the card slot of binding board by patient, and shell and binding board are fixed by bandage
Leg or hand in patient, patient can freely walk over the course for the treatment of, has greatly accelerated the speed of wound healing, has changed
Surface of a wound blood supply has been apt to it, has enhanced the effect of healing, has promoted granulation growth.
Scheme seven: this is preferred for scheme six, further includes the alarm mechanism for detecting gas leakage.
The surface of a wound over the course for the treatment of, may due to the connection between communication port and communicating pipe loosen or communicating pipe with
The phenomenon that connection between medical transparent membrane aperture is not clinged and leaked air, this will lead to the negative pressure value for acting on the surface of a wound
Lower than negative pressure value needed for normal therapeutic, so that the necrotic tissue on the surface of a wound can not be adsorbed on sponge or can not whole quilts
Be adsorbed on sponge, cause necrotic tissue can not thorough cleaning, the surface of a wound cannot keep the state of negative pressure also to promote granulation to grow,
Over time, sponge as bacteria breed can cause extremely deleterious effect to wounds healing instead.And alarm mechanism
It can be sounded an alarm in system gas leakage, give patient or medical worker timely reminds, patient or medical worker is facilitated to judge this
Whether system there is the phenomenon that gas leakage in use and is disposed in time.
Scheme eight: this is preferred for scheme seven, and the alarm mechanism includes the first magnetic for being fixed on slide bearings side
The side of iron, binding board is equipped with the first holding tank, and first holding tank and the first magnet are located at the same side, and the first holding tank
First magnetic induction switch and the first alarm are inside installed, first magnetic induction switch is matched with the first magnet, and first
Magnetic induction switch is electrically connected with alarm.
When system leaking air the phenomenon that, slide bearings will drive the first sealing ring and the first magnet to far from connection
The direction of mouth is mobile, and the first magnet can be gradually opposite with the first magnetic induction switch position and the first magnetic induction switch is promoted to open,
To allow the first alarm to sound an alarm.By the mutual cooperation of the first magnet and the first magnetic induction switch, the first report can trigger
Alert device sounds an alarm, facilitate patient or medical worker judge this system whether occur in use the phenomenon that gas leakage and and
When be disposed.In addition, the first alarm and the first magnetic induction switch are arranged on binding board, the weight of shell is alleviated, together
When, the first alarm and the first magnetic induction switch are arranged on binding board, people are in the first magnetic strength of processing binding board or installation
It is more convenient when inductive switch and the first alarm, the difficulty of this system production is reduced, the efficiency of production is improved.
Scheme nine: this is preferred for scheme seven, and the alarm mechanism includes the second magnetic for being fixed on slide bearings side
Iron, inner walls are equipped with the second holding tank, and second holding tank and the second magnet are located at the same side, and in the second holding tank
Second magnetic induction switch and the second alarm are installed, second magnetic induction switch is matched with the second magnet, and the second magnetic
Inductive switch is electrically connected with the second alarm.
When system leaking air the phenomenon that, slide bearings will drive the first sealing ring and the second magnet to far from connection
The direction of mouth is mobile, and the second magnet can be gradually opposite with the second magnetic induction switch position and the second magnetic induction switch is promoted to open,
To make the second alarm sound an alarm.By the mutual cooperation of the second magnet and the second magnetic induction switch, the second report can trigger
Alert device sounds an alarm, and patient or medical worker is facilitated to judge whether this system the phenomenon that gas leakage occurs in use.Separately
Outside, the second alarm and the second magnetic induction switch are arranged on shell, on the one hand the second magnet can be allowed to the second magnetic induction switch
Sucking action it is stronger, so that the cooperation response speed of the second magnetic induction switch and the second magnet is faster improved alarm mechanism report
Alert timeliness；On the other hand but also the lines of the outer surface of shell and card slot seem more smooth smoother, make shell and
The appearance of card slot is more beautiful.
Scheme ten: this is the preferred of basic scheme, and the spring is constant force spring, is removably connected at the communication port
Quick coupling, one end in the quick coupling close to communication port are fixed with third sealing ring, and the third sealing ring is equipped with
Gas is allowed to enter the cross valve of communication port from quick coupling.
Constant force spring can provide constant pulling force for slide bearings, to make on chamber left part, communication port and the surface of a wound
The negative pressure value of formation keeps relatively stable state, accelerates the healing of the surface of a wound.Quick coupling can facilitate patient more quickly will
Communication port is connected with communicating pipe, only needs replacing dressing communicating pipe when reusing.Third sealing ring can enhance
Leakproofness outside communication port and quick coupling junction, prevents gas leakage, and play buffer function to quick coupling and communication port,
Prevent this system quick coupling when forming negative pressure from damage communication port or quick coupling because generating rigid contact with communication port
It is bad, extend communication port, the service life of quick coupling.Cross valve on third sealing ring is to process ten on third sealing ring
Word notch formed check valve, allow gas entered in communication port from quick coupling, but do not allow gas from communication port into
Enter into quick coupling, can avoid this system in this way and occur the phenomenon that reflux when treating to the surface of a wound, substantially increase wound
The effect of face treatment.
Detailed description of the invention
Fig. 1 is the overhead sectional view of shell in Wound-surface negative pressure attraction system embodiment 1 of the present invention；
Fig. 2 is the top view of push rod bolt in Fig. 1；
Fig. 3 is the side view of push rod bolt in Fig. 1；
Fig. 4 is the structural schematic diagram of Wound-surface negative pressure attraction system embodiment 2 of the present invention.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description includes: shell 1, chamber 2, communication port 3, quick coupling 4, water sucting cavity 5, drying
Agent 6, strainer 7, porous support plate 8, slide bearings 9, fixed part 10, the first sealing ring 11, the second sealing ring 12, constant force spring
13, spring fixed seat 14, push rod bolt 15, right end cap 16, the first magnet 17, the first magnetic induction switch 18, binding board 19, third
Sealing ring 20, bandage 21, the first alarm 22, groove 23, positive stop strip 24, the second magnet 25, the second magnetic induction switch 26, second
Alarm 27, shaft 28.
Embodiment 1
Wound-surface negative pressure attraction system, as shown in Fig. 1: mainly by shell 1, communication port 3, chamber 2, negative pressure mechanism, right end
Lid 16, water-absorption mechanism, binding board 19, card slot and alarm mechanism are constituted.It is socketed with binding board 19 outside shell 1, is opened on binding board 19
Equipped with the card slot for placing shell 1, card slot is C-shaped, and binding board 19 is fixed with tying up for binding backwards to card slot on one side
Shell 1 can be fastened on the card slot of binding board 19 by band 21, patient, and be fixed on shell 1 and binding board 19 by bandage 21
Patient can freely walk over the course for the treatment of for the leg of patient or hand, has greatly accelerated the speed of wound healing, enhancing
The effect of healing promotes granulation growth.
The left part of shell 1 offers communication port 3, and communication port 3 is connect with quick coupling 4, and quick coupling 4 and communicating pipe connect
It connects.The position that quick coupling 4 is connect with communication port 3 is arranged with third sealing ring 20, is provided at the center of third sealing ring 20
Cross valve, cross valve by third sealing ring 20 center processing cross-cut formed, allow gas from quick coupling 4 into
Enter communication port 3, prevents reflux.
1 left part of shell is equipped with water-absorption mechanism for absorbing surface of a wound moisture, the left and right sides of water-absorption mechanism respectively be connected to
Mouth 3, chamber 2 are connected to；Water-absorption mechanism includes the porous support plate 8 for being fixed in 1 left part of shell, porous support plate 8 and 1 left part of shell
Between space formed water sucting cavity 5, the left and right sides of water sucting cavity 5 is connected to communication port 3, chamber 2 respectively, and cloth in water sucting cavity 5
Several desiccant 6 for water suction are equipped with, desiccant 6 is graininess；About 5 two ends of water sucting cavity offer entrance,
Entrance can hold the discrepancy of desiccant 6, and entrance is combined with the second sealing ring 12；The side wall of water sucting cavity 5 is fixed with strainer 7, strainer 7
Aperture be less than desiccant 6 diameter, strainer 7 be adhesive sticker strainer 7.
Chamber 2 is arranged in shell 1, and chamber 2 is connected to communication port 3, and negative pressure mechanism is provided in chamber 2, is connected for making
Port 3, communicating pipe and the surface of a wound form negative pressure.Negative pressure mechanism is mainly by slide bearings 9, the first sealing ring 11, spring fixed seat
14, spring, shaft 28, push rod bolt 15 are constituted.Slide bearings 9 are slidably connected in chamber 2, and the first sealing ring 11 is set in
The left part of slide bearings 9, the first sealing ring 11 can seal chamber 2, and slide bearings 9 are collectively formed with the first sealing ring 11
Moveable piston；Fixed part 10 is equipped on the right side of slide bearings 9, fixed part 10 is used to fix the left end of constant force spring 13.Gu
The middle part for determining portion 10 is equipped with horizontal plane, and horizontal plane with push rod bolt 15 for offseting.Spring fixed seat 14 is inserted into the right side of shell 1
Portion is provided with the first socket in the middle part of spring fixed seat 14, and push rod bolt 15 can be inserted into the first socket；It is equipped with and uses in first socket
In the positioning mechanism positioned to push rod bolt 15, as shown in attached drawing 2 and attached drawing 3, positioning mechanism is mainly by being arranged in second
Fixture block in socket and the positive stop strip 24 that 15 side of push rod bolt is arranged in constitute, and positive stop strip 24 is equipped with to be matched with fixture block
Groove 23, positive stop strip 24 can be inserted into together in the first socket and the second socket after being extruded with push rod bolt 15, so that fixture block
Realization positioning is matched with groove 23.Push rod bolt 15 and positive stop strip 24 are all made of PC material and are made.Up and down the two of first socket
Side is equipped with shaft 28, and shaft 28 is rotatably connected on spring fixed seat 14, and title circle is equipped in shaft 28, and shaft 28 is half
Circle shaft；For spring wind on claiming circle, spring is constant force spring 13, the left end of constant force spring 13 and consolidating in slide bearings 9
It is affixed to determine portion 10.
Right end cap 16 is socketed in the right part of shell 1, and the middle part of right end cap 16 is provided with the second socket, and the second socket can hold push rod
Bolt 15 passes through, and the second socket is opposite with the first tap position, and push rod bolt 15 may pass through the first socket and the second socket.
The phenomenon that alarm mechanism whether there is gas leakage for detecting this system when in use, alarm mechanism is mainly by the first magnetic
Iron 17, the first magnetic induction switch 18, the first alarm 22 are constituted, the first magnet 17, the first magnetic induction switch 18, the first alarm
22 quantity can be one group, be also possible to two groups, preferably two groups.First magnetic induction switch 18 is opened using common magnetic induction
Guan Junke, preferably Shenzhen letter be development in science and technology Co., Ltd production signal be SP121/SP122 cylinder approach open
It closes.First magnet 17 is packed in the side of slide bearings 9, and the side of binding board 19 is located at the two sides up and down of shell 1, and binds
The side of plate 19 offers the first holding tank, and the first holding tank and the first magnet 17 are ipsilateral, and is equipped in the first holding tank
One magnetic induction switch 18 and the first alarm 22, the first magnetic induction switch 18 is matched with the first magnet 17, and the first magnetic induction
Switch 18 is electrically connected with the first alarm 22, and the first holding tank can cooperate the first cover board to be sealed.First alarm 22 and first
Magnetic induction switch 18 is arranged on binding board 19, alleviates the weight of shell 1, meanwhile, by the first alarm 22 and the first magnetic strength
Inductive switch 18 is arranged on binding board 19, and people are in processing binding board 19 or the first magnetic induction switch 18 of installation and the first alarm
It is more convenient when 22, the difficulty of this system production is reduced, the efficiency of production is improved.
In addition, transparent region can be arranged on 1 surface of shell, patient or medical worker is facilitated to observe the position of slide bearings 9
It sets；Also negative pressure value graduation mark can be set in transparent region, patient or medical worker is facilitated to read negative pressure value.In addition, can be in push rod
Screw thread is set on the positive stop strip 24 of bolt 15 with increasing friction force, facilitates patient or medical worker's taking and extruding.
When initial, push rod bolt 15 is separated with shell 1, and slide bearings 9 are located under the pulling force effect of constant force spring 13
The right part of chamber 2 and close spring fixed seat 14.
In use, being coated with dressing on the surface of a wound, medical high polymer sponge is selected in dressing, with medical transparent membrane that sponge is close
It seals, then opens an aperture on medical transparent membrane and be connected to a communicating pipe.The left part insertion first of push rod bolt 15 is inserted
It offsets in mouth and the second socket and with the horizontal plane of slide bearings 9, by pushing push rod bolt 15, makes 9 band of slide bearings
Dynamic first sealing ring 11 is past to be moved left and the air of 2 left part of chamber is discharged.When the fixture block and push rod bolt 15 in the first socket
Positive stop strip 24 on card slot stop pushing push rod bolt 15 when fastening, and one end of quick coupling 4 is connect with communicating pipe
And the other end is connect with communication port 3, so that this system be made to be connected to the surface of a wound.
Then, squeezing positive stop strip 24 separates the card slot on positive stop strip 24 with the fixture block in the first socket, by push rod bolt
15 extract from the first socket and the second socket, slide bearings 9 lose push rod bolt 15 abutting effect after in constant force spring
The trend slided to the right is generated under the action of 13 restoring forces, so that 2 left part of chamber, water sucting cavity 5, communication port 3, quick coupling 4, company
Siphunculus and the surface of a wound form negative pressure, so that the necrotic tissue on the surface of a wound is adsorbed on sponge, realize the cleaning of surface of a wound necrotic tissue,
And promote the growth of wound granulation.
If this system due to communication port 3 and the connection loosening of quick coupling 4, quick coupling 4 and is connected in use
It cannot achieve the reasons such as sealing between pipe connection loosening or communicating pipe and the medical transparent membrane aperture of the surface of a wound and occur
The phenomenon that gas leakage, can make 2 left part negative pressure of chamber become smaller, and slide bearings 9 will drive the first sealing ring 11 and gradually move right,
First magnet 17 can move closer to the first ipsilateral magnetic induction switch 18, when 18 position of the first magnet 17 and the first magnetic induction switch
When opposite, the first magnet 17, which generates the first magnetic induction switch 18 to attract, opens the first magnetic induction switch 18, the first magnetic induction
Switch 18 is opened so that the first alarm 22 sounds an alarm, and gives patient or medical worker timely reminds, facilitate patient or doctor
Business personnel have found gas leakage in time and are disposed in time.
There may be moisture on the surface of a wound, moisture of this system during clearing up necrotic tissue, on the surface of a wound
It may be entered in communication port 3 by sponge, communicating pipe, quick coupling 4 with partial necrosis tissue, necrotic tissue is in adhesive sticker
It is blocked under the filtering of strainer 7 in communication port 3, patient or medical staff is facilitated to clear up, and moisture is in the effect of negative pressure
Under be attracted in water sucting cavity 5, and by water sucting cavity 5 granulated dried agent 6 adsorb remove, prevent moisture from entering chamber 2
It is interior that the components such as the first sealing ring 11, slide bearings 9 are damaged and polluted, to make this system can controlling in same patient
It is reused during treating.
This system is removable after using a cycle (generally 3-7 days) to be unloaded down, is carried out to materials such as communicating pipe, dressing
Replacement, and the second sealing ring 12 is opened, the desiccant 6 in water sucting cavity 5 is poured out from entrance, new desiccant 6 is packed into
In water sucting cavity 5, so that water-absorption mechanism can continue to absorb the moisture being attracted into, to make this system reusable, drop
The treatment cost of low patient.
Embodiment 2
The present embodiment difference from example 1 is that: as shown in Fig. 4, alarm mechanism mainly by the second magnet 25,
Second magnetic induction switch 26, the second alarm 27 are constituted, and the side of slide bearings 9 is fixed with the second magnet 25,1 side of shell
Inner wall be equipped with the second holding tank, the second magnetic induction switch 26 and the second alarm 27 be installed in second holding tank, second
Magnetic induction switch 26 is matched with the second magnet 25, and the second magnetic induction switch 26 is electrically connected with the second alarm 27, and second accommodates
Slot can cooperate the second cover board to be sealed.Second magnetic induction switch 26 uses common magnetic induction switch, preferably Shenzhen
City's letter is the close switch of cylinder that the signal of development in science and technology Co., Ltd production is SP121/SP122.
When system leaking air the phenomenon that, slide bearings 9 will drive the first sealing ring 11 and the second magnet 25 to remote
Direction from communication port 3 is mobile, and the second magnet 25 can be gradually opposite with 26 position of the second magnetic induction switch and promotes the second magnetic strength
Inductive switch 26 is opened, so that the second alarm 27 be made to sound an alarm.Pass through the phase of the second magnet 25 and the second magnetic induction switch 26
Mutually cooperation can trigger the second alarm 27 and sound an alarm, patient or medical worker is facilitated to judge that this system is in use
It is no the phenomenon that gas leakage occur.In addition, the second alarm 27 and the second magnetic induction switch 26 are arranged on shell 1, on the one hand may be used
It makes the second magnet 25 stronger to the sucking action of the second magnetic induction switch 26, makes the second magnetic induction switch 26 and the second magnet 25
Cooperate response speed faster, improves the timeliness of alarm mechanism alarm；On the other hand but also the lines of the outer surface of shell 1
Seem more smooth smoother, keeps the appearance of shell 1 more beautiful.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (10)
1. Wound-surface negative pressure attraction system, including shell, it is characterised in that: be equipped with chamber in shell, one end of shell is equipped with connection
Mouthful, communication port and chamber；The negative pressure mechanism for making communication port form negative pressure is equipped in chamber, the negative pressure mechanism includes
The indoor slide bearings of chamber are slidably connected at, the slide bearings are removably connected with close to one end of communication port can be by chamber
First sealing ring of room sealing, slide bearings are equipped with fixed part far from one end of communication port；The one end of shell far from communication port
It is removably connected with spring fixed seat, the first socket is provided on the spring fixed seat, is connected with push rod in the first socket
Bolt；The two sides of first socket are equipped with shaft, and shaft is rotatably connected on spring fixed seat, and shaft is equipped with spring, bullet
The other end of spring is fixed on the fixed part of slide bearings.
2. Wound-surface negative pressure attraction system according to claim 1, it is characterised in that: the one end of the shell far from communication port
It is removably connected with right end cap, right end cap is located at the outside of spring fixed seat, and right end cap, which is equipped with, can hold push rod bolt and pass through
The second socket, and the second socket is opposite with the first tap position.
3. Wound-surface negative pressure attraction system according to claim 1, it is characterised in that: be equipped in first socket for pair
The positioning mechanism that push rod bolt is positioned, the positioning mechanism include the fixture block being arranged in the first socket, push rod bolt
Side is equipped with positive stop strip, and positive stop strip is equipped with the groove matched with fixture block, and positive stop strip can be together with push rod bolt after being extruded
It is inserted into the first socket.
4. Wound-surface negative pressure attraction system according to claim 1, it is characterised in that: the shell is close to one end of communication port
Equipped with the water-absorption mechanism for absorbing surface of a wound moisture, the two sides of water-absorption mechanism respectively with communication port, chamber.
5. Wound-surface negative pressure attraction system according to claim 4, it is characterised in that: the water-absorption mechanism includes being fixed on shell
Porous support plate on body, the porous support plate and shell form water sucting cavity, the water suction between the side of communication port
Chamber and communication port, chamber, and several granular desiccant for water suction are disposed in water sucting cavity；The end of water sucting cavity
Entrance is offered, the entrance is combined with the second sealing ring；The side wall of water sucting cavity is equipped with strainer, and the aperture of the strainer is small
In the diameter of desiccant.
6. Wound-surface negative pressure attraction system according to claim 1, it is characterised in that: be removably connected with and tie up outside the shell
Fixed board offers the card slot for placing shell on the binding board, the bandage for binding is fixed on binding board.
7. Wound-surface negative pressure attraction system according to claim 6, it is characterised in that: further include the alarm for detecting gas leakage
Mechanism.
8. Wound-surface negative pressure attraction system according to claim 7, it is characterised in that: the alarm mechanism includes being fixed on cunning
The side of first magnet of dynamic support base side, binding board is equipped with the first holding tank, first holding tank and the first magnet position
In the same side, and the first magnetic induction switch and the first alarm are installed in the first holding tank, first magnetic induction switch with
First magnet matches, and the first magnetic induction switch is electrically connected with alarm.
9. Wound-surface negative pressure attraction system according to claim 7, it is characterised in that: the alarm mechanism includes being fixed on cunning
Second magnet of dynamic support base side, inner walls are equipped with the second holding tank, and second holding tank is located at the second magnet
The same side, and the second magnetic induction switch and the second alarm are installed in the second holding tank, second magnetic induction switch and
Two magnet match, and the second magnetic induction switch is electrically connected with the second alarm.
10. Wound-surface negative pressure attraction system according to claim 1, it is characterised in that: the spring is constant force spring, described
Quick coupling is removably connected at communication port, one end of close communication port is fixed with third sealing ring in the quick coupling,
The third sealing ring is equipped with the cross valve for allowing gas to enter communication port from quick coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810930938.1A CN109010947B (en) | 2018-08-15 | 2018-08-15 | Wound surface negative pressure suction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810930938.1A CN109010947B (en) | 2018-08-15 | 2018-08-15 | Wound surface negative pressure suction system |
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| Publication Number | Publication Date |
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| CN109010947A true CN109010947A (en) | 2018-12-18 |
| CN109010947B CN109010947B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810930938.1A Active CN109010947B (en) | 2018-08-15 | 2018-08-15 | Wound surface negative pressure suction system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987209A (en) * | 2009-08-06 | 2011-03-23 | 周建大 | Negative pressure drainage instrument capable of regulating negative pressure |
| CN202724435U (en) * | 2012-09-12 | 2013-02-13 | 梁伟 | Portable passive vacuum sealing drainage device |
| CN206381426U (en) * | 2016-09-29 | 2017-08-08 | 刘冬梅 | The orthopedic Wound treatment Portable negative pressure suction device of one kind burn |
| CN209123011U (en) * | 2018-08-15 | 2019-07-19 | 重庆戴夫医疗科技有限公司 | Wound-surface negative pressure attraction system |
-
2018
- 2018-08-15 CN CN201810930938.1A patent/CN109010947B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987209A (en) * | 2009-08-06 | 2011-03-23 | 周建大 | Negative pressure drainage instrument capable of regulating negative pressure |
| CN202724435U (en) * | 2012-09-12 | 2013-02-13 | 梁伟 | Portable passive vacuum sealing drainage device |
| CN206381426U (en) * | 2016-09-29 | 2017-08-08 | 刘冬梅 | The orthopedic Wound treatment Portable negative pressure suction device of one kind burn |
| CN209123011U (en) * | 2018-08-15 | 2019-07-19 | 重庆戴夫医疗科技有限公司 | Wound-surface negative pressure attraction system |
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|---|---|
| CN109010947B (en) | 2024-02-13 |
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