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108 results about "Wound fluid" patented technology
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Self contained wound dressing with micropump
Owner:SMITH & NEPHEW INC
Self contained wound dressing apparatus
InactiveUS20070055209A1Easy to disassemblePromote healingAntibacterial agentsSurgical needlesPeristaltic pumpVacuum pressure
The composite wound dressing apparatus promotes healing of a wound via the use of an external peristaltic vacuum pump. The external peristaltic pump applies a vacuum pressure to the wound to effectively draw wound fluid or exudate away from the wound bed. The external peristaltic pump is tethered to the wound dressing and is portable, preferably, carried by the patient in a support bag, which permits patient mobility. Moreover, the patient does not need to be constrained for any period of time while exudate is being removed from the wound.
Owner:TYCO HEALTHCARE GRP LP
Vacuum assisted closure pad with adaptation for phototherapy
InactiveUS6994702B1Prevent vacuum leakageIncrease costPlastersSurgical instrument detailsFiberVacuum assisted
A modified vacuum assisted wound closure system adapted for concurrent applications of phototherapy having a foam pad for insertion substantially into the wound site and a wound drape for sealing enclosure of the foam pad at the wound site. The foam pad includes an optical pigtail, whereby desired wavelength of light may be directed into and about the wound site. The foam pad is placed in fluid communication with a vacuum source for promotion of fluid drainage. The foam pad is made of a highly reticulated, open-cell polyurethane or polyether foam for good permeability of wound fluids while under suction and is also embedded with an optical pigtail. The optical pigtail comprises an optical fiber that has been formed to fan into a plurality of sections. The fibers of the most distal fanned sections, which are implanted in the foam pad at its base, are provided with tiny optical slots, oriented away from the foam pad and toward the wound site. Each optical slot is made by stripping the cladding from the optical fiber in the desired areas of the fanned sections to form slot radiators. Because it is necessary to trim the foam pad in preparation for therapy, the optical fibers comprise plastics, such as acrylic or styrene. Upon placement of the pad, having the optical pigtail embedded therein, the wound drape is firmly adhered about the VAC therapy suction hose as well as the extending optical fiber to prevent vacuum leakage.
Owner:MORGAN STANLEY
Self contained wound dressing with micropump
A composite wound dressing apparatus promotes healing of a wound via the use of a micropump system housed within or above a wound dressing member. The micropump system includes a miniature pump that applies a subatmospheric pressure to the wound to effectively draw wound fluid or exudate away from the wound bed without the need for a cumbersome external vacuum source. Hence, the wound dressing and micropump system is portable which allows the patient mobility that is unavailable when an external vacuum source is used. The patient does not need to be constrained for any period of time while exudate is being removed from the wound.
Owner:SMITH & NEPHEW INC
Wound therapy device and related methods
A wound closure apparatus is disclosed which includes a housing that contains a vacuum pump and a chamber for holding a disposable wound fluid collection canister. The canister resides within the chamber and connects at an outlet with the vacuum pump and at an inlet with a pad. The pad is placed over a wound and adhesively secured thereto. When the vacuum pump activates, it evacuates air from the canister resulting in wound fluids flowing from the wound into the canister. After the canister is filled, it is removed from the chamber and replaced with another canister to continue the removal of wound fluids.
Owner:KCI LICENSING INC
Wound dressing with micropump
InactiveUS20110112492A1Great patient comfortEasy ambulationWound drainsPlastersWound dressingMicropump
A composite wound dressing apparatus promotes healing of a wound via the use of a micropump system. The micropump system includes a micropump that applies a subatmospheric pressure to the wound to effectively draw wound fluid or exudate away from the wound bed, or deliver fluids to the wound bed, without the need for a cumbersome external pressure (e.g. vacuum) source. Hence, the wound dressing and micropump system is portable which allows the patient mobility that is unavailable when an external vacuum source is used.
Owner:3M INNOVATIVE PROPERTIES CO
Self contained wound dressing apparatus
Owner:SMITH & NEPHEW INC
Negative Pressure Wound Therapy Systems Capable of Vacuum Measurement Independent of Orientation
A portable negative pressure wound therapy system includes a dressing assembly for positioning over a wound to apply negative pressure to the wound and a canister assembly. The canister assembly includes a control unit, a vacuum source disposed in the control unit, a pressure sensor in communication with a processor unit of the control unit, and a collection canister. The collection canister includes an inlet conduit in fluid communication with the dressing assembly, a first chamber to collect wound fluids, an inlet port coupled to the inlet conduit to introduce the wound fluids from the dressing assembly into the first chamber, a suction port to communicate with the first chamber and the vacuum source, a pressure sensor port to communicate with the first chamber and the pressure sensor. The pressure sensor port is in fluid communication with a “T”-off point between the inlet conduit and the inlet port.
Owner:SMITH & NEPHEW INC
Device for treatment of wound using reduced pressure
ActiveUS8382731B2Reduce pressureKeep the pressureSurgeryMedical devicesLiquid diffusionCompressible material
Provided is a device for treatment of wounds using reduced pressure, which includes a pump, a gas barrier cover, a first compressible material which expands after compression, and a second material capable of absorbing wound fluids several times its own weight. The first and second materials are arranged inside the cover and form a reservoir connected to the pump. The device also includes an inlet for connecting the reservoir with a wound, a wound pad to be arranged in the wound cavity, and a sealing covering the wound and the wound pad. A third material with high liquid spreading capability is arranged around at least a major part of the first material, and the second material is in the form of at least one layer arranged outside the third material and separated from the first material by the third material.
Owner:MOLNLYCKE HEALTH CARE AB
Wound Dressing with Advanced Fluid Handling
A wound dressing for managing wound fluids includes a porous contact layer for positioning adjacent a wound. An internal open window extends through the contact layer exposing a distal side of an absorbent member. The absorbent member is disposed in a superimposed relation to the window of the contact layer and is dimensioned to extend laterally beyond the window such that a portion of the absorbent member overlaps and is secured to the contact layer. A drape layer is disposed on a proximal side of the absorbent member, and is adhesively coated to fasten the drape layer to the absorbent member. A cover layer disposed over the drape layer defines an internal open window such that the open window is adjacent the absorbent member. A distal side of the cover layer is adhesively coated to secure the cover layer to the contact layer.
Owner:KPR U S LLC
Wound dressing with advanced fluid handling
A wound dressing for managing wound fluids includes a porous contact layer for positioning adjacent a wound. An internal open window extends through the contact layer exposing a distal side of an absorbent member. The absorbent member is disposed in a superimposed relation to the window of the contact layer and is dimensioned to extend laterally beyond the window such that a portion of the absorbent member overlaps and is secured to the contact layer. A drape layer is disposed on a proximal side of the absorbent member, and is adhesively coated to fasten the drape layer to the absorbent member. A cover layer disposed over the drape layer defines an internal open window such that the open window is adjacent the absorbent member. A distal side of the cover layer is adhesively coated to secure the cover layer to the contact layer.
Owner:KPR U S LLC
Medical dressing with cooling function and wound healing prompting function and preparation method of medical dressing
ActiveCN102600018APromote healingPromote absorptionAdhesive dressingsAbsorbent padsNanofiberNonwoven fabric
The invention discloses a medical dressing with a cooling function and a wound healing promoting function, which at least comprises a perforated non-woven fabric layer, a nanometer fiber layer with a gradient structure, a hydrogel layer and a supporting layer. The preparation method of the medical dressing includes steps of covering hydrogel onto the supporting layer; covering the nanometer fiberlayer with the gradient structure on the hydrogel; and finally reinforcing the perforated non-woven fabric layer on the surface of the nanometer fiber layer so as to obtain the medical dressing. The nanometer fiber layer has the gradient structure, and facilitates absorption and retention of liquid of wound, and medicine can reach the surface of the wound after being released, so that wound healing is promoted; the perforated non-woven fabric layer has a physical isolating effect, avoids outside bacteria, can absorb effusion of the wound, can be easily removed from the surface of the wound and is not adhered with the wound; and the hydrogel layer can realize temperature regulation and reduces the temperature of the wound. The medical dressing comprehensively utilizes a medicine loading performance of nanometer fibers and capillary mobility of liquid, and promotes wound healing while cooling.
Owner:SOUTH CHINA UNIV OF TECH
Surgical cavity drainage and closure system
ActiveUS20130274717A1Treating and preventing seromaGood drainageUltrasonic/sonic/infrasonic diagnosticsSuture equipmentsWound dressingSurgical department
A surgical drain device includes a matrix of biodegradable polymer material and a plurality of drain tubes attached to the matrix. The device is implanted within a surgical wound to treat the presence of seromas, for example, and is used to promote drainage, tissue adhesion, and wound closure. The drain tubes converge into a common collection tube that leads wound fluid outside the body under gravity feed or negative pressure applied to the collection tube. The matrix contains an array of apertures that allow tissue contact across the device. A preferred embodiment comprises a tissue anchoring system including anchor elements such as hooks or barbs. The device can be used with a negative pressure system to further improve the drainage band can also be used with a wound dressing. The device and systems containing the device are particularly useful to promote the healing of surgical wounds from abdominal surgery.
Owner:UNIV OF MASSACHUSETTS
Self contained wound dressing apparatus
The composite wound dressing apparatus promotes healing of a wound via the use of a vacuum pump. The vacuum pump applies a vacuum pressure to the wound to effectively draw wound fluid or exudate away from the wound bed. The vacuum pump is tethered to the wound dressing and is portable, preferably, carried by the patient in a support bag, which permits patient mobility. Moreover, the patient does not need to be constrained for any period of time while exudate is being removed from the wound.
Owner:SMITH & NEPHEW INC
Hydrogel dressing and preparation method thereof
InactiveCN101337086AHigh strengthGuaranteed StrengthAbsorbent padsBandagesFreeze thawingPolymer science
The invention discloses hydrogel dressing which is composed of an upper layer and a lower layer. The lower-layer hydrogel is prepared by utilizing freeze thawing radiation method, and the upper-layer hydrogel is prepared by utilizing the radiation method; both the layers of hydrogel contain water-soluble polymer, and solvent for the residual; wherein, the lower-layer hydrogel contains polyvinyl alcohol. The invention also discloses a hydrogel-dressing preparation method which comprises the following steps: after the deaeration treatment of the water-soluble polymer solution containing polyvinyl alcohol, the hydrogel is prepared by utilizing circulating frozen thawing method; the water-soluble polymer solution after the deaeration treatment is positioned on the hydrogel, and then irradiation is performed under the high-energy rays. The hydrogel dressing has not only excellent strength and toughness, but also high transparence and wound fluid absorption ability. Meanwhile, the hydrogel dressing requires no additional chemical cross-linking agent or initiating agent, medical adhesive, and no reinforcing layer, such as fiber fabrics and woven fabrics, the two layers can be bonded firmly, and the preparation and the disinfection can be finished synchronously.
Owner:SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
Mechanical barrier in wound healing
InactiveUS20070260207A1Eliminate riskEliminate the problemSurgeryWound drainsBiomedical engineeringWound fluid
The present invention relates to an implantable, disposable barrier disc to be used in negative pressure treatment of wounds, in particular sternotomy wounds, wherein the barrier disc consists of a rigid material withstanding a negative pressure of at least −50 mmHg without causing deformation to the barrier disc, and that the barrier disc is perforated to allow drainage of wound fluid through said barrier disc.
Owner:SHIELDHEART MEDTECH
Device for tratment of wound using reduced pressure
ActiveUS20110028920A1Reduce pressureKeep the pressureSurgeryMedical devicesLiquid diffusionCompressible material
A device for treatment of wounds using reduced pressure, comprisinga pump,a gas barrier cover,a first compressible material which expand after compression,a second material capable of absorbing wound fluids several times its own weight.The first and second material are arranged inside the cover and form a reservoir connected to said pump, The device further comprisingan inlet for connecting the reservoir with a wounda wound pad to be arranged in the wound cavity anda sealing covering the wound and said wound pad.A third material with high liquid spreading capability is arranged around at least a major part of the first material, and said second material is in the form of at least one layer arranged outside the third material and separated from the first material by said third material.
Owner:MOLNLYCKE HEALTH CARE AB
Wound dressing with micropump
A composite wound dressing apparatus promotes healing of a wound via the use of a micropump system. The micropump system includes a micropump that applies a subatmospheric pressure to the wound to effectively draw wound fluid or exudate away from the wound bed, or deliver fluids to the wound bed, without the need for a cumbersome external pressure (e.g. vacuum) source. Hence, the wound dressing and micropump system is portable which allows the patient mobility that is unavailable when an external vacuum source is used.
Owner:3M INNOVATIVE PROPERTIES CO
Wound care device having fluid transfer and adhesive properties
This disclosure relates to a wound care device which contains capillary force one-way pumps that are capable of transporting fluid, such as wound exudate, away from a wound site to the opposite side of the wound care device, which functions as a segregated fluid reservoir. This fluid transport mechanism generally aids in reducing wound maceration by removing excess wound fluid and the protease enzymes and infectious bacteria contained within the wound fluid. The wound care device performs this function, often times for multiple days, without the loss of the physical integrity of the wound care device. In addition to providing a uni-directional fluid transport mechanism, the wound care device contains a perforated adhesive layer.
Owner:MILLIKEN & CO
Collapsible canister for use with reduced pressure therapy device
A wound fluid collection system includes a canister with a chamber fluidly connected to a wound dressing in a tissue site through an inlet and also fluidly connected to a reduced pressure source through an outlet. At least a portion of the canister is collapsible and yet can be maintained in an extended state when exposed to subatmospheric pressure. The canister is releasably attachable to a supporting member.
Owner:3M INNOVATIVE PROPERTIES CO
Systems and methods for detection of wound fluid blood and application of phototherapy in conjunction with reduced pressure wound treatment system
InactiveUS7947033B2Improve the level ofCut woundDiagnostics using lightWound drainsWound dressingLight treatment
Owner:KCI LICENSING INC
Wound therapy system and dressing for delivering oxygen to a wound
Owner:SMITH & NEPHEW INC
Wound prognosis
ActiveUS20140045761A1Large improvement in wound healingAvoid unnecessary oxidized cellulose therapyBioreactor/fermenter combinationsOrganic active ingredientsWound dressingChronic wound
Methods and devices for determining the healing status of wounds, in particular of chronic wounds are provided. Also provided are kits comprising the diagnostic devices, and methods of wound diagnosis and treatment using the diagnostic devices and methods. A diagnostic apparatus (device) for monitoring wounds that exude a wound fluid and determining whether said wounds would be responsive to treatment with wound therapy such as oxidized cellulose therapy is also provided along with kits comprising the diagnostic apparatus and a wound dressing. Furthermore, methods of prognosing and treating wounds that exude a wound fluid are also provided.
Owner:WOUNDCHEK LAB
Diagnosis of clinical infection of a wound
InactiveUS7794925B2Microbiological testing/measurementBiological material analysisProteinase activityAbnormal macrophage
A method of predicting or diagnosing clinical infection of a wound comprising measuring the concentration of a marker associated with an inflammatory response in wound fluid, wherein the marker is a fibronectin fragment, a neutrophil protease or a macrophage protease. Also provided is a use of a wound dressing or biosensor comprising components of an assay system for measuring the concentration of a marker associated with an inflammatory response, wherein the marker is a fibronectin fragment, a neutrophil protease or a macrophage protease, for use in the manufacture of a medicament for predicting the likelihood of clinical infection of the wound or for diagnosing clinical infection of a wound.
Owner:WOUNDCHEK LAB US
Materials and methods for measuring nitric oxide levels in biological fluids
ActiveUS8906693B2Improve treatmentAdministration of appropriateBiocideAnalysis by electrical excitationIntensive care medicineNitric oxide metabolism
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Surgical cavity drainage and closure system
ActiveUS20140039468A1Promote rapid healing and stabilizationEasy adhesionSuture equipmentsSurgical needlesSurgical departmentBiodegradable polymer
A surgical drain device includes an adhesion matrix of biodegradable polymer material and a plurality of drain tubes attached to the matrix. The device is implanted within a surgical wound to treat the presence of seromas, for example, and is used to promote drainage, tissue adhesion, and wound closure. The drain tubes converge into a common collection tube that leads wound fluid outside the body under gravity feed or negative pressure applied to the collection tube. The matrix contains an array of apertures that allow tissue contact across the device. The device also can include a coating of surgical adhesive and a tissue anchoring system of hooks or barbs. The device and systems containing the device are particularly useful to promote the healing of surgical wounds from abdominal surgery.
Owner:UNIV OF MASSACHUSETTS
Dressings for filtering wound fluids
InactiveUS20200170841A1Promote wound healingNon-adhesive dressingsInorganic active ingredientsBio moleculesWound.exudate
Disclosed herein are dressings capable of filtering, capturing, and / or releasing select biological molecules from wound exudate. In one embodiment, the dressing may include a permeable, non-adherent envelope. The permeable, non-adherent envelope may enclose a composition comprising milled hydrophobic foam.
Owner:KCI USA +1
Materials and methods for measuring nitric oxide levels in biological fluids
ActiveUS20120136054A1Quickly and accurately assessThe process is fast and accurateBiocideAnalysis using chemical indicatorsIntensive care medicineNitric oxide metabolism
The subject invention presides novel devices and methods for the measurement of nitric oxide in biological samples, including wound fluid samples. These advantageous devices and methods can be used for clinicians to monitor the wound's nitric oxide metabolism and / or response to treatment.
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Method and apparatus for wound treatment
A wound treatment device comprises a polyurethane or polyether foam pad, adapted for insertion substantially within a wound cavity; a pump for supplying fluid flow to the wound site; and a collection canister for receiving wound fluids drawn from the wound cavity. The foam pad, pump and collection canister are in fluid communication with one another through a single hospital grade hose having a plurality of tiny apertures in the portion that is central to the foam pad. These apertures are adapted to allow fluids from the wound cavity to be drawn into the flow from the pump to the canister according to Bernoulli's theorem.
Owner:KCI LICENSING INC
Marker of wound infection
InactiveUS20090299161A1Improve material stabilityImprove accuracyAnalysis using chemical indicatorsMicrobiological testing/measurementAntioxidant capacityWound dressing
An indicator device adapted give a detectable signal when the antioxidant capacity of a sample of a mammalian wound fluid exceeds a predetermined minimum level which is characteristic of an infected wound. Also provided system for use in the diagnosis and treatment of wounds comprising the inventive diagnostic device and a wound dressing comprising at least one antimicrobial agent for selective application to infected wounds. Also provided are methods of diagnosis and treatment by means of the inventive device and system.
Owner:WOUNDCHEK LAB US
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