CN113082308B - Wound exudate alarm system - Google Patents
Wound exudate alarm system Download PDFInfo
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- CN113082308B CN113082308B CN202110358159.0A CN202110358159A CN113082308B CN 113082308 B CN113082308 B CN 113082308B CN 202110358159 A CN202110358159 A CN 202110358159A CN 113082308 B CN113082308 B CN 113082308B
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- shielding cover
- negative pressure
- vacuum
- exudate
- wound
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H33/00—Bathing devices for special therapeutic or hygienic purposes
- A61H33/14—Devices for gas baths with ozone, hydrogen, or the like
-
- 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)
- Public Health (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention relates to the technical field of medical appliances, in particular to a wound exudate alarming system, which comprises a shielding cover, a pneumatic compression device, an observation box assembly, an exudate collecting bottle, a tee joint assembly and an imaging module, wherein a hollow area is arranged on the inner side of the shielding cover; after one end of the drainage needle is inserted into the tee joint assembly, the exudates are drained to the vacuum observation cavity; the imaging module is detachably arranged on the outer side of the shielding cover or the outer side of the box main body and is used for shooting images of wound areas or exudates in the vacuum observation cavity. The exudates are periodically collected by utilizing the replaceable observation box assembly, and are analyzed by utilizing an imaging technology, so that the influence on monitoring accuracy caused by the coagulation of the exudates is avoided.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a wound exudate alarming system.
Background
After the surgery is performed, a wound to be healed is generally left, and the wound healing process is generally divided into a blood stage, a defense/inflammation stage, a proliferation stage and a maturation stage; in the defense/inflammation stage, immune cells such as white blood cells, macrophages and the like enter the wound to destroy bacteria and remove fragments at the wound site, and meanwhile, the immune cells secrete growth factors and proteins to attract more immune cells to the wound site to promote tissue repair, and edema, exudates, erythema and pain are accompanied at the wound site.
Wound exudates are mostly dark yellow turbid, bloody or purulent in appearance. As the exudates contain thromboplastin and fibrinogen which are released when tissues or cells are damaged, the exudates are quickly coagulated in the exposed air, and abnormal conditions of the exudates are not easy to analyze and monitor in time.
The negative pressure wound treatment equipment is called Negative Pressure Wound THERAPY DEVICES in the United states, is called NPWT for short, and the principle is that negative pressure is applied to a wound, exudates are sucked to promote wound healing, and meanwhile physicochemical properties of the exudates are analyzed to judge the wound healing progress and whether symptoms such as infection, bleeding and the like exist or not, and meanwhile an alarm is provided. Negative pressure, however, presents the potential for disrupting growth factors and immune cell function at the wound site and risks exacerbating wound redness and swelling, pain.
Disclosure of Invention
The invention aims to provide a wound exudate alarming system aiming at the defects of the prior art, wherein an exchangeable observation box assembly is used for periodically collecting exudate, an imaging technology is used for analyzing the exudate, and the influence on monitoring accuracy caused by exudate condensation is avoided.
To achieve the above object, the wound exudate warning system of the present invention includes: the shielding cover is transparent, a hollow area is formed in the inner side of the shielding cover, an inlet and an outlet are formed in the hollow area, and the shielding cover is used for covering a wound area; the pressure gas release device is connected with the inlet of the hollow area in a conducting way through a pipeline and is used for blowing gas to the hollow area; the observation box assembly comprises a box main body made of a transparent material and a drainage needle, a vacuum observation cavity and a needle tube part are arranged in the box main body, the drainage needle is slidably arranged on the needle tube part in a limited travel range, and a separation film which can be pierced by the drainage needle is arranged between the vacuum observation cavity and the needle tube part; the exudate collecting bottle is communicated with the outlet of the hollow area and is used for collecting exudate flowing out of the wound area; the tee joint assembly is provided with a first end and a second end which are communicated, and the first end and the second end are respectively communicated with the outlet and the exudate collection bottle; the three-way component is also provided with a third end which can be opened and closed, one end of the drainage needle is positioned in the needle tube part, the other end of the drainage needle is inserted between the first end and the second end through the third end, exudates are drained to the vacuum observation cavity, and the third end is closed after the other end of the drainage needle is pulled out from the third end; and the imaging module is detachably arranged on the outer side of the shielding cover or the outer side of the box main body and is used for shooting an image of a wound area or exudates in the vacuum observation cavity.
Further, the wound exudate alarming system of the invention further comprises a shell, a camera, a power supply, a storage module, a wireless signal receiving and transmitting module and a control unit, wherein the shell is detachably connected with the outer side of the shielding cover or the outer side of the box main body; the camera is slidably arranged on the shell, and the camera, the power supply, the storage module and the wireless signal receiving and transmitting module are all electrically connected with the control unit.
Furthermore, in the wound exudate alarming system, the outer side surface of the shielding cover is provided with a chute; the outer edge of the shielding cover is provided with an elastic skirt, the elastic skirt is provided with an annular first negative pressure zone and a second negative pressure zone, the first negative pressure zone is positioned at the outer edge of the hollow zone, and the second negative pressure zone is positioned at the outer edge of the first negative pressure zone; the air extractor is respectively connected with the first negative pressure zone and the second negative pressure zone in a conducting way through a pipeline and is used for extracting air from the first negative pressure zone and the second negative pressure zone.
Further, the wound exudate alarming system of the present invention comprises a square tube, wherein square holes are formed in the square tube, the cross sections of the square holes are square, the first end and the second end are respectively located at two ends of the square tube, one end of the drainage needle is in a round tube shape, the other end of the drainage needle is provided with a square tube end, the cross sections of the Fang Guanduan are square, the tail end of the square tube end is provided with a leading-in inclined plane, and Fang Guanduan is inserted between the first end and the second end through the third end and then blocks the exudate from flowing to the exudate collecting bottle.
Furthermore, in the wound exudate alarming system, the top of the leading-in inclined plane is provided with the sealing top surface, the square tube is internally provided with the sealing groove, and the sealing top surface is matched with the sealing groove.
Furthermore, the wound exudate alarming system is characterized in that the box main body is further provided with a vacuum suction cavity, the vacuum suction cavity is positioned at one end of the vacuum observation cavity and is communicated with the vacuum observation cavity, the box main body is further provided with a front lens wall and a rear lens wall, the vacuum observation cavity is positioned between the front lens wall and the rear lens wall, the distance between the front lens wall and the rear lens wall is 0.01-0.5mm, and the volume of the vacuum suction cavity is 3-5 times that of the vacuum observation cavity.
Furthermore, in the wound exudate alarming system, the outside of the box main body and the shielding cover is provided with a clamping structure for clamping the imaging module.
Further, in the wound exudate alarming system, the camera is slidably arranged on the shell, the imaging module further comprises a light supplementing lamp, the outer edge of the shell is provided with a light guide plate, the light guide plate is used for guiding light emitted by the light supplementing lamp to the shielding cover or the rear lens wall, and the camera is positioned on the outer side of the front lens wall when the imaging module shoots an image of exudate in the vacuum observation cavity.
Further, in the wound exudate alarming system, the shielding cover is provided with a containing groove for containing the end part of the light guide plate, and the containing groove is formed by concave surface of the shielding cover.
The invention has the beneficial effects that: according to the wound exudate alarming system, the replaceable observation box assembly is utilized to periodically collect exudates, the imaging technology of the imaging module is utilized to photograph the exudates in the observation box assembly, the characteristic information of the exudates can be collected without disassembling a shielding cover or gauze, and the exudates are not contacted with the outside environment air before collecting the exudates images, so that the influence on monitoring accuracy caused by condensation of the exudates is avoided. Meanwhile, the pressure gas release device is used for blowing gas to the hollow area, so that a certain oxygen partial pressure is maintained in the wound area, and the wound healing speed is improved.
Drawings
Fig. 1 is a schematic diagram of a connection structure according to the present invention.
Fig. 2 is a schematic cross-sectional view of a view box assembly of the present invention.
Fig. 3 is a schematic perspective view of a view box assembly according to the present invention.
Fig. 4 is a schematic diagram of a connection structure of an imaging module according to the present invention.
Fig. 5 is a schematic perspective view of a drainage needle according to the present invention.
Drainage needle
The reference numerals include:
1-shielding cover 11-hollow region
2-Pressure gas release device
3-Viewing box assembly
31-Drainage needle 311-square tube end 312-leading-in inclined plane 313-sealing top surface
32-Box main body
321-Spacer film 322-vacuum viewing chamber
323-Front lens wall 324-rear lens wall 325-needle cannula portion
33-Vacuum suction chamber
34-Spring
4-Tee assembly
41-First end 42-second end 43-third end
44-Fang Tongguan-square hole
5-Elastic skirt 51-first negative pressure region 52-second negative pressure region
6-Imaging module 61-camera 62-light filling lamp 63-storage module 64-wireless
64 Signal transceiver module 65-control unit
7-Effusion collecting bottle
8-An air extracting device.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1-5, the wound exudate warning system of the present invention includes: the shielding cover 1, the shielding cover 1 is transparent, a hollow area 11 is arranged on the inner side of the shielding cover 1, an inlet and an outlet are arranged in the hollow area 11, and the shielding cover 1 is used for covering a wound area; the pressure gas release device 2 is connected with the inlet of the hollow area 11 in a conducting way through a pipeline, the pressure gas release device 2 is used for blowing gas to the hollow area 11, and exudates in the wound area can flow to the vacuum observation cavity 322 or the exudates collecting bottle 7 through an outlet; the observation box assembly 3, the observation box assembly 3 comprises a drainage needle 31 and a box main body 32 made of transparent materials, a vacuum observation cavity 322 and a needle tube part 325 are arranged in the box main body 32, the drainage needle 31 is slidably arranged on the needle tube part 325 within a limited travel range, and a separation membrane 321 which can be pierced by the drainage needle 31 is arranged between the vacuum observation cavity 322 and the needle tube part 325; an exudate collection bottle 7, the exudate collection bottle 7 is communicated with the outlet of the hollow region 11 and is used for collecting exudate flowing out of the wound region; the tee joint assembly 4 is provided with a first end 41 and a second end 42 which are communicated, and the first end 41 and the second end 42 are respectively communicated with the outlet and the exudate collection bottle 7; the three-way assembly 4 is further provided with a third end 43 capable of being opened and closed, one end of the drainage needle 31 is positioned in the needle tube portion 325, the other end of the drainage needle 31 is inserted between the first end 41 and the second end 42 through the third end 43, exudates are drained to the vacuum observation cavity 322, and after the other end of the drainage needle 31 is pulled out from the third end 43, the third end 43 is closed; the imaging module 6, the imaging module 6 is detachably installed on the outside of the shielding cover 1 or the outside of the box main body 32, and is used for shooting images of wound areas or exudates in the vacuum observation cavity 322.
According to the wound exudate alarming system, the replaceable observation box assembly 3 is utilized to periodically collect exudates, the imaging technology of the imaging module 6 is utilized to photograph the exudates in the observation box assembly 3, the characteristic information that the exudates can be collected without disassembling the shielding cover 1 or gauze can be achieved, and the exudates are not contacted with the outside environment air before collecting the exudates images, so that the influence on monitoring accuracy caused by the coagulation of the exudates is avoided. Meanwhile, the wound exudate alarming system provided by the invention has the advantages that the wound area is positive, the potential possibility that negative pressure damages growth factors and immune cell functions at the wound is avoided, the possibility of aggravating wound redness and swelling and pain is avoided, and meanwhile, the pressure gas releasing device 2 is used for blowing gas into the hollow area 11, so that the wound area can keep a certain oxygen partial pressure, and the wound healing speed can be improved.
Specifically, a spring 34 may be disposed in the needle tube portion 325, where the spring 34 abuts against the lower portion of the flange of the drainage needle 31, so that the drainage needle 31 has a tendency to deviate from the vacuum observation cavity 322, and after the drainage needle 31 pierces the septum 321 to guide the exudates into the vacuum observation cavity 322, the drainage needle 31 may be pulled out from the vacuum observation cavity 322, and the septum 321 seals the vacuum observation cavity 322.
Specifically, a horn may be disposed on the imaging module 6, and the horn is electrically connected to the control unit 65, and emits an alarm signal when abnormality is found. The chinese patent CN101947348B discloses specific embodiments that can detect the color of the exudates and send out an alarm signal in time.
In the specific implementation, an atomizer can be also arranged for atomizing the anti-inflammatory liquid medicine; the atomizer is communicated with the pipeline, and the pressure gas release device 2 atomizes the liquid medicine to generate fog which enters the wound area in the hollow area 11 through the pipeline, so that the possibility of wound inflammation is reduced. The pressure gas releasing device 2 is a device capable of slowly releasing gas with certain pressure, for example, the pressure gas releasing device comprises a tank body packaged with high-pressure gas and a pressure reducing valve device, and specifically, the pressure gas releasing device can be a high-pressure gas tank, and mixed gas of nitrogen and oxygen is packaged in the high-pressure gas tank.
When the vacuum observation cavity 322 is under negative pressure and it is necessary to introduce the exudate into the vacuum observation cavity 322, the other end of the drainage needle 31 may be inserted between the first end 41 and the second end 42 through the third end 43, and then the exudate may be drained into the vacuum observation cavity 322.
In one embodiment, the wound exudate alarming system of the present invention, the imaging module 6 further includes a housing, a camera 61, a power source, a storage module 63, a wireless signal transceiver module 64, and a control unit 65, where the housing is detachably connected to the outside of the shielding cover 1 or the outside of the box main body 32; the camera 61 is slidably mounted on the housing, and the camera 61, the power supply, the storage module 63, and the wireless signal transceiver module 64 are all electrically connected to the control unit 65. The wound exudate alarming system can be in signal transmission with a mobile phone through a signal-free transceiver module, and can send out an alarming signal when the control unit 65 analyzes and judges that exudate is abnormal. The storage module 63 stores instructions, and the wireless signal transceiver module 64 may be a bluetooth module or a wifi module, for communicating with a mobile phone. After the control unit 65 executes the instruction, the camera 61 shoots the image or video, then caches the image or video in the storage module 63, then transmits information with the mobile phone through the wireless signal transceiver module 64, and transmits the shot image or video to the mobile phone, so that a patient can remotely transmit the image or video to a doctor by using the mobile phone, and the doctor can remotely control the imaging module 6 to observe a patient area, thereby realizing telemedicine.
In one embodiment, the wound exudate alarming system of the present invention, the outer side surface of the shielding cover 1 is provided with a chute; the outer edge of the shielding cover 1 is provided with an elastic skirt 5, the elastic skirt 5 is provided with an annular first negative pressure area 51 and a second negative pressure area 52, the first negative pressure area 51 is positioned at the outer edge of the hollow area 11, and the second negative pressure area 52 is positioned at the outer edge of the first negative pressure area 51; the air extractor 8 is connected with the first negative pressure area 51 and the second negative pressure area 52 in a conducting way through a pipeline, and the air extractor 8 is used for extracting air from the first negative pressure area 51 and the second negative pressure area 52. According to the wound exudate alarming system, the elastic skirt 5 can be adsorbed to the skin through negative pressure, so that the shielding cover 1 is connected with the skin of a patient without using adhesive.
In one embodiment, the wound exudate alarming system of the present invention, the three-way assembly 4 includes a square tube 44, a square hole 45 is provided inside the square tube 44, the cross section of the square hole 45 is square, the first end 41 and the second end 42 are respectively located at two ends of the square tube 44, one end of the drainage needle 31 is in a circular tube shape, the other end of the drainage needle 31 is provided with a square tube end 311, the cross section of the square tube end 311 is square, the end of the square tube end 311 is provided with a leading-in inclined plane 312, and after the square tube end 311 is inserted between the first end 41 and the second end 42 through the third end 43, the exudate is blocked from flowing to the exudate collecting bottle 7, and meanwhile, the second end 42 is sealed, so that the phenomenon that the vacuum observation cavity 322 is depressurized before the exudate is collected is avoided.
Specifically, in the wound exudate alarming system of the present invention, the top of the guiding inclined plane 312 is provided with a sealing top surface 313, the inside of the square tube 44 is provided with a sealing groove, and the sealing top surface 313 is matched with the sealing groove.
In one embodiment, the wound exudate alarming system of the present invention, the box main body 32 is further provided with a vacuum suction cavity 33, the vacuum suction cavity 33 is located at one end of the vacuum observation cavity 322 and is in communication with the vacuum observation cavity 322, the box main body 32 is further provided with a front lens wall 323 and a rear lens wall 324, the vacuum observation cavity 322 is located between the front lens wall 323 and the rear lens wall 324, the distance between the front lens wall 323 and the rear lens wall 324 is 0.01-0.5mm, so as to facilitate shooting and observing components in exudate, and the volume of the vacuum suction cavity 33 is 3-5 times that of the vacuum observation cavity 322. The wound exudate alarming system of the invention, the vacuum suction cavity 33 improves the vacuum volume, and can fully ensure the vacuum observation cavity 322
In one embodiment, in the wound exudate alarming system of the present invention, the outside of the box main body 32 and the shielding cover 1 is provided with a clamping structure for clamping the imaging module 6, the specific clamping structure may adopt a T-shaped notch, and a T-shaped part matched with the T-shaped notch is provided in the housing of the imaging module 6.
In one embodiment, the wound exudate alarming system of the present invention, the camera 61 is slidably disposed in the housing, so that the camera 61 can adjust the focal length. The imaging module 6 further comprises a light supplementing lamp 62, a light guide plate is arranged at the outer edge of the shell and used for guiding light emitted by the light supplementing lamp 62 to the shielding cover 1 or the rear lens wall 324, and the camera 61 is positioned at the outer side of the front lens wall 323 when the imaging module 6 shoots images of exudates in the vacuum observation cavity 322. The wound exudate warning system of the present invention, with the light supplement lamp 62, can clearly image where the ambient light is insufficient.
In one embodiment, the wound exudate alarming system of the present invention, the shielding cover 1 is provided with a receiving groove for receiving an end portion of the light guide plate, and the receiving groove is formed by a concave surface of the shielding cover 1. The end of the light guide plate is located in the accommodating groove and can guide the light of the light supplementing lamp 62 to the shielding cover 1.
In view of the above, the present invention has the above-mentioned excellent characteristics, so that it can be used to improve the performance and practicality of the prior art, and is a product with great practical value.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (6)
1. Wound exudate warning system, characterized in that it includes:
The shielding cover is transparent, a hollow area is formed in the inner side of the shielding cover, an inlet and an outlet are formed in the hollow area, and the shielding cover is used for covering a wound area; the outer side surface of the shielding cover is provided with a chute; the outer edge of the shielding cover is provided with an elastic skirt, the elastic skirt is provided with an annular first negative pressure zone and a second negative pressure zone, the first negative pressure zone is positioned at the outer edge of the hollow zone, and the second negative pressure zone is positioned at the outer edge of the first negative pressure zone; the air extractor is respectively connected with the first negative pressure zone and the second negative pressure zone in a conducting way through a pipeline and is used for extracting air from the first negative pressure zone and the second negative pressure zone;
the pressure gas release device is connected with the inlet of the hollow area in a conducting way through a pipeline and is used for blowing gas to the hollow area;
the observation box assembly comprises a box main body made of a transparent material and a drainage needle, a vacuum observation cavity and a needle tube part are arranged in the box main body, the drainage needle is slidably arranged on the needle tube part in a limited travel range, and a separation film which can be pierced by the drainage needle is arranged between the vacuum observation cavity and the needle tube part;
The exudate collecting bottle is communicated with the outlet of the hollow area and is used for collecting exudate flowing out of the wound area;
The tee joint assembly is provided with a first end and a second end which are communicated, and the first end and the second end are respectively communicated with the outlet and the exudate collection bottle; the three-way component is also provided with a third end which can be opened and closed, one end of the drainage needle is positioned in the needle tube part, the other end of the drainage needle is inserted between the first end and the second end through the third end, exudates are drained to the vacuum observation cavity, and the third end is closed after the other end of the drainage needle is pulled out from the third end; the tee joint assembly comprises a square pipe, square holes are formed in the square pipe, the cross sections of the square holes are square, the first end and the second end are respectively located at two ends of the square pipe, one end of a drainage needle is in a circular pipe shape, the other end of the drainage needle is provided with a square pipe end, the cross sections of Fang Guanduan are square, the tail ends of the square pipe ends are provided with leading-in inclined planes, and after Fang Guanduan is inserted between the first end and the second end through a third end, seepage is blocked from flowing to a seepage collecting bottle; the top of the leading-in inclined plane is provided with a sealing top surface, a sealing groove is formed in the square tube, and the sealing top surface is matched with the sealing groove;
a spring is arranged in the needle tube part and is abutted against the lower part of the flange of the drainage needle, so that the drainage needle has a trend of deviating from the vacuum observation cavity, the drainage needle can be pulled out of the vacuum observation cavity after penetrating the diaphragm to guide exudates into the vacuum observation cavity, and the diaphragm seals the vacuum observation cavity;
And the imaging module is detachably arranged on the outer side of the shielding cover or the outer side of the box main body and is used for shooting an image of a wound area or exudates in the vacuum observation cavity.
2. The wound exudate warning system of claim 1 wherein: the imaging module further comprises a shell, a camera, a power supply, a storage module, a wireless signal receiving and transmitting module and a control unit, wherein the shell is detachably connected with the outer side of the shielding cover or the outer side of the box main body; the camera is slidably arranged on the shell, and the camera, the power supply, the storage module and the wireless signal receiving and transmitting module are all electrically connected with the control unit.
3. The wound exudate warning system of claim 2 wherein: the box main body is also provided with a vacuum suction cavity, the vacuum suction cavity is positioned at one end of the vacuum observation cavity and is communicated with the vacuum observation cavity, the box main body is also provided with a front lens wall and a rear lens wall, the vacuum observation cavity is positioned between the front lens wall and the rear lens wall, the distance between the front lens wall and the rear lens wall is 0.01-0.5mm, and the volume of the vacuum suction cavity is 3-5 times that of the vacuum observation cavity.
4. The wound exudate warning system of claim 1 wherein: the box main body and the shielding cover are provided with a clamping structure for clamping the imaging module.
5. A wound exudate warning system according to claim 3 wherein: the camera slides and sets up in the casing, imaging module still includes the light filling lamp, the outer fringe of casing is provided with the light guide plate, and the light guide plate is used for guiding the light guide that the light filling lamp sent to shielding lid or back lens wall, and imaging module shoots when the image of vacuum observation intracavity effusion, and the camera is located the outside of front lens wall.
6. The wound exudate warning system of claim 5, wherein: the shielding cover is provided with a containing groove for containing the end part of the light guide plate, and the containing groove is formed by concave surface of the shielding cover.
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| CN202110358159.0A CN113082308B (en) | 2021-04-01 | 2021-04-01 | Wound exudate alarm system |
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| CN202110358159.0A CN113082308B (en) | 2021-04-01 | 2021-04-01 | Wound exudate alarm system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101304772A (en) * | 2005-09-15 | 2008-11-12 | 史密夫及内修公开有限公司 | Apparatus with actives from tissue |
| CN104189991A (en) * | 2014-09-11 | 2014-12-10 | 昆山韦睿医疗科技有限公司 | Color discrimination method and device for wound exudates and negative-pressure treatment system |
| CN104644333A (en) * | 2015-02-12 | 2015-05-27 | 昆山韦睿医疗科技有限公司 | Collecting device for storing wound fluid and negative pressure treatment equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3982546A (en) * | 1975-02-28 | 1976-09-28 | Friend John H | Device for draining a body cavity |
| CN102283771A (en) * | 2011-07-26 | 2011-12-21 | 惠州市华阳多媒体电子有限公司 | High-pressure oxygen supply device and negative pressure wound therapy system |
| CN207253523U (en) * | 2017-03-15 | 2018-04-20 | 北京积水潭医院 | A kind of pressure-adjustable wound drainage device |
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2021
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304772A (en) * | 2005-09-15 | 2008-11-12 | 史密夫及内修公开有限公司 | Apparatus with actives from tissue |
| CN104189991A (en) * | 2014-09-11 | 2014-12-10 | 昆山韦睿医疗科技有限公司 | Color discrimination method and device for wound exudates and negative-pressure treatment system |
| CN104644333A (en) * | 2015-02-12 | 2015-05-27 | 昆山韦睿医疗科技有限公司 | Collecting device for storing wound fluid and negative pressure treatment equipment |
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