CN111166405A - Pneumothorax patch - Google Patents
Pneumothorax patch Download PDFInfo
- Publication number
- CN111166405A CN111166405A CN202010104082.XA CN202010104082A CN111166405A CN 111166405 A CN111166405 A CN 111166405A CN 202010104082 A CN202010104082 A CN 202010104082A CN 111166405 A CN111166405 A CN 111166405A
- Authority
- CN
- China
- Prior art keywords
- substrate
- way valve
- pneumothorax
- patch
- recited
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 201000003144 pneumothorax Diseases 0.000 title claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 210000000115 thoracic cavity Anatomy 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000012790 adhesive layer Substances 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 12
- 239000011358 absorbing material Substances 0.000 claims description 10
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229940072056 alginate Drugs 0.000 claims description 3
- 229920000615 alginic acid Polymers 0.000 claims description 3
- 235000010443 alginic acid Nutrition 0.000 claims description 3
- 229920003049 isoprene rubber Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 206010051986 Pneumatosis Diseases 0.000 abstract description 12
- 206010018833 Haematocoele Diseases 0.000 abstract description 7
- 208000005873 Hematocele Diseases 0.000 abstract description 7
- 241000521257 Hydrops Species 0.000 abstract description 7
- 206010030113 Oedema Diseases 0.000 abstract description 7
- 201000004920 hematocele of tunica vaginalis testis Diseases 0.000 abstract description 7
- 206010052428 Wound Diseases 0.000 description 15
- 210000000038 chest Anatomy 0.000 description 15
- 208000027418 Wounds and injury Diseases 0.000 description 14
- 210000004072 lung Anatomy 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 210000000779 thoracic wall Anatomy 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 206010003694 Atrophy Diseases 0.000 description 1
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000245772 Gasteria Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 238000001266 bandaging Methods 0.000 description 1
- 210000000621 bronchi Anatomy 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/08—Wound clamps or clips, i.e. not or only partly penetrating the tissue ; Devices for bringing together the edges of a wound
- A61B17/085—Wound clamps or clips, i.e. not or only partly penetrating the tissue ; Devices for bringing together the edges of a wound with adhesive layer
-
- 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
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Surgery (AREA)
- Anesthesiology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Hematology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses a pneumothorax patch, which comprises: a substrate and a one-way valve; the one-way valve is integrally embedded on the substrate; the one-way valve is communicated from inside to outside in one way, corresponds to the position of the wound area of the thoracic cavity and is used for discharging gas and/or liquid in the thoracic cavity; the substrate has water absorption capacity and is used for absorbing liquid led out by the one-way valve, and the self-adhesive layer is arranged on the inner side of the substrate and outside the one-way valve. Not only can seal the wound of the thoracic cavity, but also can discharge pneumatosis, hematocele and hydrops in the thoracic cavity.
Description
Technical Field
The invention belongs to the field of medical equipment, and relates to a pneumothorax patch.
Background
When breathing, negative pressure can be generated in the chest cavity along with the expansion of the chest wall and the contraction of the diaphragm muscle, and air enters the lung through the upper respiratory tract and the bronchus; when the chest wall is retracted and the diaphragm muscle is relaxed, positive pressure is generated in the lungs to expel air from the respiratory tract. Open pneumothorax is caused by trauma that results in damage to the entire layer of chest wall tissue, and when the chest cavity is ruptured and the wound is left open, air will enter the chest cavity from the wound and change the pressure in the chest cavity, and air cannot enter the lungs, eventually resulting in pneumothorax, and the lungs atrophy, and if the wound exceeds the diameter of the trachea, the air entering the chest cavity will exceed the air entering the lungs, resulting in hypoxia of the body.
The treatment of open wounds to the chest is by closing the wound and avoiding air from entering the chest cavity. At present, sterile dressing or cotton pads are generally adopted to cover wounds, and then adhesive tapes or bandages are used for bandaging and fixing, so that open pneumothorax is changed into closed pneumothorax, and the closed pneumothorax is urgently sent to a hospital for further treatment. However, the existing emergency treatment method for the open pneumothorax is complex to operate and unsatisfactory in effect, the traditional dressing only simply seals the wound, and the accumulated qi, the accumulated blood and the accumulated liquid which are continuously increased in the thoracic cavity cannot be eliminated, so that hidden dangers exist, and the hidden dangers are an important factor for death of the wounded.
Disclosure of Invention
The invention aims to: the pneumothorax patch is simple to operate, good in sealing performance and capable of conducting air and liquid in a one-way mode.
The technical scheme of the invention is as follows: a pneumothorax patch, comprising: a substrate and a one-way valve;
the one-way valve is integrally embedded on the substrate;
the one-way valve is communicated from inside to outside in a one-way mode, corresponds to the position of a wound area of the thoracic cavity and is used for discharging gas and/or liquid in the thoracic cavity;
the substrate has water absorption capacity and is used for absorbing liquid led out by the one-way valve, and the inner side of the substrate is provided with a self-adhesive layer in the area outside the one-way valve.
The further technical scheme is as follows: the substrate and the one-way valve are provided with liquid guide holes, and the liquid guide holes and the substrate are integrated;
the check valve is provided with an exhaust hole which is communicated with the outside.
The further technical scheme is as follows: the check valve is a micro-pressure check valve which is opened when the positive thoracic pressure is greater than a predetermined value and is closed when the positive thoracic pressure is less than or equal to the predetermined value or in a negative thoracic pressure state.
The further technical scheme is as follows: the predetermined value is 3 mmHg.
The further technical scheme is as follows: the control part material of the one-way valve comprises at least one of silica gel, silicon rubber, isoprene rubber and polytetrafluoroethylene.
The further technical scheme is as follows: the outer side and the edge of the substrate are of water locking structures.
The further technical scheme is as follows: the thickness of the substrate is 0.5-1 cm.
The further technical scheme is as follows: the substrate is composed of a high-expansion water-absorbing material, and the water-absorbing performance of the high-expansion water-absorbing material is more than 500%.
The further technical scheme is as follows: the high-expansion water-absorbing material comprises at least one of a polyurethane material, a water-absorbing resin, a polyvinyl alcohol material and an alginate material.
The invention has the advantages that:
the pneumothorax patch formed by the substrate and the one-way valve aims at the position of a wound through the one-way valve, is fixed on a thoracic cavity through the self-adhesive layer, is simple to operate and good in sealing property, and the substrate has water absorption capacity, can absorb effusion led out by the one-way valve, and meanwhile, the one-way valve can also discharge pneumatosis, so that the wound can be sealed, external gas and bacteria can be prevented from entering the thoracic cavity, and the effusion, the pneumatosis and the pneumatosis can be discharged.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic view of a thoracotomy patch provided in an embodiment of the present application;
FIG. 2 is a bottom view of a thoracotomy patch provided in an embodiment of the application;
fig. 3 is a side view of a chest patch provided in accordance with an embodiment of the present application.
Wherein: 1. a substrate; 2. a one-way valve; 3. a drain hole; 4. an exhaust hole; 5. a self-adhesive layer.
Detailed Description
Example (b): the present application provides a pneumothorax patch, with reference to fig. 1 to 3, comprising: a substrate 1 and a one-way valve 2.
The check valve 2 is integrally embedded in the substrate 1.
The one-way valve 2 is communicated from inside to outside in one way and corresponds to the position of the wound area of the thoracic cavity and is used for exhausting gas and/or liquid in the thoracic cavity.
The one-way valve 2 of the pneumothorax patch corresponds to the wound area, and the inner side of the substrate 1 corresponds to the wound peripheral area.
The substrate 1 has water absorption capacity for absorbing liquid guided out by the check valve, and the inner side of the substrate 1 is provided with a self-adhesive layer 5 in the area outside the check valve 2.
Optionally, there is the isolation layer self-adhesive layer when not using, tears the isolation layer and exposes the viscous layer and pastes fixedly when using.
Optionally, the substrate 1 and the one-way valve 2 are provided with a liquid guide hole 3, and the liquid guide hole 3 and the substrate 1 are integrated; the one-way valve 2 is provided with an exhaust hole 4, and the exhaust hole 4 is communicated with the outside.
The drainage hole 3 is used for guiding accumulated blood discharged through the one-way valve 2 into the water-absorbing substrate 1.
In practical application, the effusion or the hematocele in the thoracic cavity is led out through the one-way valve 2 and is led into the substrate 1 through the liquid guide hole 3, and the substrate 1 is made of water-absorbing material, so that the derived effusion can be absorbed. The pneumatosis in the chest cavity is directly exhausted to the external environment through the exhaust hole 4 after being led out by the one-way valve 2.
Optionally, the check valve 2 is a micro-pressure check valve that opens when the positive thoracic pressure is greater than a predetermined value and closes when the positive thoracic pressure is less than or equal to the predetermined value or in a negative thoracic pressure state.
For example, in practical applications, the predetermined value may be 3 mmHg.
The chest is the negative pressure under normal conditions, after forming open pneumothorax, because hydrops and pneumatosis have formed the positive pressure in the chest, this kind of positive pressure can not be too big, is slightly bigger than atmospheric pressure usually, discharges hydrops pneumatosis through minute-pressure check valve, for example minute-pressure check valve opens and discharges pneumatosis hydrops when chest positive pressure is greater than 3mmHg for the chest restores to normal minute-negative pressure, and minute-pressure check valve is closed when chest positive pressure is less than or equal to 3mmHg or the chest is negative pressure state.
In order to discharge pneumatosis and hydrops in the chest cavity and play a role of closing and opening pneumothorax, a micro-pressure one-way valve is required. It should be noted that the micro-pressure check valve is opened from inside to outside (i.e. from the inside of the chest to the outside environment) when the positive pressure in the chest is greater than a predetermined value, and is closed when the positive pressure in the chest is less than or equal to the predetermined value, and when the chest is negative pressure, the outside air pressure is greater than the chest pressure, and the micro-pressure check valve is also closed; the micro-pressure one-way valve is always normally closed from the outside to the inside (namely from the external environment to the inside of the chest cavity).
Optionally, the control member of the check valve 2 is made of at least one of silicone rubber, isoprene rubber and polytetrafluoroethylene.
Optionally, the outer side and edges of the substrate 1 are water-retaining structures.
The outer side and the edge of the substrate 1 are made into a water locking structure, so that hematocele and effusion absorbed by the substrate 1 can be locked in the substrate 1, and the cleanness of the outside of the pneumothorax patch is kept.
Optionally, the thickness of the substrate 1 is 0.5-1 cm.
Optionally, the substrate 1 is made of a high-expansion water-absorbing material, and the water-absorbing performance of the high-expansion water-absorbing material is more than 500%.
Optionally, the high expansion water absorbing material comprises at least one of a polyurethane material, a water absorbing resin, a polyvinyl alcohol material and an alginate material.
The pneumatosis, the effusion and the hematocele are usually contained in the chest cavity of the open pneumothorax, the hematocele and the effusion discharged through the one-way valve 2 can be effectively absorbed through the water absorbing material, and the hematocele and the effusion can be better absorbed by the high-expansion water absorbing material with high water absorbing performance.
In this application, the inner side of the substrate 1 refers to the side next to the thorax and the outer side refers to the side facing the environment.
To sum up, the pneumothorax subsides that this application provided, through the pneumothorax subsides that substrate and check valve are constituteed, aim at the wound position with the check valve, fix on the thorax through the self-adhesive layer, easy operation, the closure is good to the substrate possesses the water-absorbing capacity, can absorb the hydrops of deriving by the check valve, and the check valve can also discharge the pneumatosis simultaneously, not only can seal the wound, prevents that external gas, bacterium from getting into the thorax, can discharge hydrops, hematocele, pneumatosis moreover.
The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying a number of the indicated technical features. Thus, a defined feature of "first", "second", may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. A pneumothorax patch, comprising: a substrate and a one-way valve;
the one-way valve is integrally embedded on the substrate;
the one-way valve is communicated from inside to outside in a one-way mode, corresponds to the position of a wound area of the thoracic cavity and is used for discharging gas and/or liquid in the thoracic cavity;
the substrate has water absorption capacity and is used for absorbing liquid led out by the one-way valve, and the inner side of the substrate is provided with a self-adhesive layer in the area outside the one-way valve.
2. The pneumothorax patch as claimed in claim 1, wherein the one-way valve is a micro-pressure one-way valve which is opened when the positive thoracic pressure is greater than a predetermined value and is closed when the positive thoracic pressure is less than or equal to the predetermined value or in a negative thoracic pressure state.
3. The pneumothorax patch as recited in claim 2, wherein the predetermined value is 3 mmHg.
4. The pneumothorax patch as recited in claim 2, wherein a control member material of the one-way valve includes at least one of silicone rubber, isoprene rubber, and polytetrafluoroethylene.
5. The pneumothorax patch as recited in claim 1, wherein the substrate and the one-way valve are provided with drainage holes, and the drainage holes are integrated with the substrate;
the check valve is provided with an exhaust hole which is communicated with the outside.
6. The pneumothorax patch as recited in claim 1, wherein the base sheet is composed of a high expansion water absorbent material having a water absorption performance of more than 500%.
7. The pneumothorax patch as recited in claim 6, wherein the high expansion water absorbing material includes at least one of a polyurethane material, a water absorbing resin, a polyvinyl alcohol material, and an alginate material.
8. The pneumothorax patch as recited in claim 7, wherein the outer side and the edge of the substrate are of a water-retaining structure.
9. The pneumothorax patch as recited in any one of claims 1 to 8, wherein the substrate has a thickness of 0.5-1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104082.XA CN111166405A (en) | 2020-02-20 | 2020-02-20 | Pneumothorax patch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010104082.XA CN111166405A (en) | 2020-02-20 | 2020-02-20 | Pneumothorax patch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111166405A true CN111166405A (en) | 2020-05-19 |
Family
ID=70646989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010104082.XA Withdrawn CN111166405A (en) | 2020-02-20 | 2020-02-20 | Pneumothorax patch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111166405A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2757523C2 (en) * | 2020-01-17 | 2021-10-18 | Владимир Иванович Попов | Device for the treatment of open pneumothorax |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5263922A (en) * | 1991-08-26 | 1993-11-23 | Plasco, Inc. | Valved bandage |
| US5431633A (en) * | 1994-05-06 | 1995-07-11 | Global Fury, Inc. | Noninvasive device for preventing pressure build-up in pleural space and reducing possibility of development of a tension pneumothorax from an open pneumothorax |
| US20110028918A1 (en) * | 2007-11-21 | 2011-02-03 | Edward Yerbury Hartwell | Wound dressing |
| US20170312402A1 (en) * | 2016-05-02 | 2017-11-02 | Andromeda Group, Inc. | Chest seal and vacuum system |
| CN209378126U (en) * | 2018-11-19 | 2019-09-13 | 中国人民解放军陆军军医大学士官学校 | One-way ventilation pneumothorax sealing device |
| CN211934171U (en) * | 2020-02-20 | 2020-11-17 | 上海蕴箬生物科技有限公司 | Pneumothorax patch |
-
2020
- 2020-02-20 CN CN202010104082.XA patent/CN111166405A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5263922A (en) * | 1991-08-26 | 1993-11-23 | Plasco, Inc. | Valved bandage |
| US5431633A (en) * | 1994-05-06 | 1995-07-11 | Global Fury, Inc. | Noninvasive device for preventing pressure build-up in pleural space and reducing possibility of development of a tension pneumothorax from an open pneumothorax |
| US20110028918A1 (en) * | 2007-11-21 | 2011-02-03 | Edward Yerbury Hartwell | Wound dressing |
| US20170312402A1 (en) * | 2016-05-02 | 2017-11-02 | Andromeda Group, Inc. | Chest seal and vacuum system |
| CN209378126U (en) * | 2018-11-19 | 2019-09-13 | 中国人民解放军陆军军医大学士官学校 | One-way ventilation pneumothorax sealing device |
| CN211934171U (en) * | 2020-02-20 | 2020-11-17 | 上海蕴箬生物科技有限公司 | Pneumothorax patch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2757523C2 (en) * | 2020-01-17 | 2021-10-18 | Владимир Иванович Попов | Device for the treatment of open pneumothorax |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8128655B2 (en) | Method for creating a temporary hypobaric wound space in an intentionally left open surgical wound to diagnose substrate losses and prevent exogenous contamination with microorganisms | |
| AU2016200418B2 (en) | Device for delivery of reduced pressure to body surfaces | |
| WO2020046935A1 (en) | Dressing | |
| US20050273066A1 (en) | Method for creating a temporary hypobaric wound space in an intentionally left open surgical wound to diagose substrate losses and prevent exogenous contamination with microorganisms | |
| CN105338934A (en) | Wound care apparatus employing atmospheric negative pressure to treat wounds including windows capable of opening | |
| US12161794B2 (en) | Negative pressure device having oxygen scavenger and volume reduction | |
| WO2017133376A1 (en) | Compressed negative-pressure vacuum system | |
| CN111166405A (en) | Pneumothorax patch | |
| EP3756629A1 (en) | Enteric fistula, rectovaginal fistula, and ostomy effluent containment system, and devices and methods thereof | |
| CN211934171U (en) | Pneumothorax patch | |
| US20230049136A1 (en) | Negative pressure wound therapy (npwt) bandage | |
| CN111671985A (en) | A waterproof and anti-infective thoracic and abdominal cavity open wound rapid sealing and dressing device | |
| US20240074914A1 (en) | Passive negative pressure dressing | |
| US12310822B2 (en) | Multi-layered dressing | |
| US20250275873A1 (en) | Chest Seal | |
| CN209378126U (en) | One-way ventilation pneumothorax sealing device | |
| CN222889106U (en) | Wound dressing with drainage tube fixing function | |
| CN220477625U (en) | Breast first aid device integrating fixing and softening chest wall and plugging open pneumothorax | |
| CN218607711U (en) | Minimally invasive incision drainage device | |
| CN223403902U (en) | A chest wound sealing channel system | |
| CN113397798A (en) | Ostomy bag with venting device and venting method thereof | |
| CN208031379U (en) | A kind of percutaneous puncture mouth leakproof fixator | |
| CN112107746A (en) | Thoracic cavity exhausting device and operation method | |
| RU217593U1 (en) | DEVICE FOR TREATMENT OF STRENGTH PNEUMOTHORAX | |
| CN218870659U (en) | Antibacterial medical foam adhesive bandage with porous structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200519 |