46 results about "Exudate" patented technology

Disclosed herein are devices, wound dressings and methods for determining the pH of fluid or a wound exudate at a wound. Example devices include a device comprising a surface configured to contact the fluid or wound and a pH indicator covalently bound thereto or applied to the surface, wherein the pH indicator has a first colour prior to contact with the fluid or the wound exudate and changes colour as a function of the pH of the fluid or wound exudate. Example devices include a device which indicates wound exudate loading within a wound dressing and wound dressing comprising an absorbent layer and a moisture indicator which indicates would exudate loading within the dressing, wherein the visibility of the moisture indictor changes as a result of a physical transformation of a first material within the dressing. Systems, devices, and methods are provided for monitoring wound status and progression by measuring pH levels indicated by pH-sensitive wound dressings. In some implementations, a wound is monitored by capturing an image of the pH-sensitive wound dressing and processing the captured image to determine the color of a pH indicator included on the wound dressing. The color of the indicator is determined in terms of RGB values from the image, and a pH value for the wound dressing is calculated from the dressing RGB values. The calculated pH value is then relayed to a user to be used as an indicator of wound status or health.

The invention discloses a high-moisture-permeability hydrogel nursing patch and a preparation method thereof, and belongs to the technical field of medical supplies. Sodium alginate and gelatin are scientifically compounded to serve as a gel skeleton, functional components such as the aloe extract, the humectant and the penetration enhancer are supplemented, a stable three-dimensional network structure is constructed, the synergistic effect of multiple effects of moisturizing, resisting bacteria, promoting absorption of active ingredients and the like is achieved, and the synergistic improvement of high moisture permeability, antibacterial property and mechanical property of the product is achieved; the prepared nursing patch can quickly and largely absorb exudate at a wound, keep the wound clean and dry, reduce the risk of wound infection by absorbing the exudate, promote wound healing, effectively relieve skin surface wounds and scratches, and avoid skin infection and ulceration caused by the wounds.

Disclosed embodiments relate to wound care materials and methods that comprise a self-gelling composition, configured to form a gel upon contacting fluid. The self-gelling composition is a substantially homogeneous mixture, and comprises fluid-absorbent particles loaded with iodine-based antimicrobial agent, a dehydrated hydrogel powder, and a polymer base, configured to allow dispensing the self-gelling composition from a syringe or tube and to prevent the self-gelling composition from gelling prior to contacting fluid. The gel performs one or more of the following tasks during a wear time, when applied at the wound: absorbing fluid or exudate, releasing iodine-based antimicrobial agent, achieving antimicrobial activities at the wound, remaining structurally integral and cohesive, protecting the wound from exposure to microorganisms, and facilitating healing. After a wear time of at least three days, the gel can be removed in two pieces or less and leave less than 5% residue by weight.

The present invention is an absorbent product that provides both a thermal effect, such as cooling, and absorbency for receiving bodily exudates, such as released from the female urogenital tract, whilst providing the thermal effect, such as cooling, for this region.

A system, method, and apparatus are disclosed for dressing a wound. The apparatus comprises a liquid and gas permeable transmission layer, an absorbent layer for absorbing wound exudate, the absorbent layer overlying the transmission layer, a gas impermeable cover layer overlying the absorbent layer and comprising a first orifice, wherein the cover layer is moisture vapor permeable.

This invention belongs to the field of external application of traditional Chinese medicine preparations, specifically relating to a waterproof dressing for wound protection. It comprises plant charcoal, plant oil, and a traditional Chinese medicine ointment, wherein the plant charcoal, plant oil, and traditional Chinese medicine ointment are mixed and prepared into a paste in a weight ratio of (0.3-2.5):3:(0.5-2.7). The technical solution provided by this invention uses simple plant charcoal, plant oil, and traditional Chinese medicine ointment to form a stable protective layer on the wound surface using the wound's own exudate. Once fully cured, it does not peel off upon contact with water, greatly reducing the risk of infection. Furthermore, it allows for the easy addition of other traditional Chinese medicine ingredients to achieve other therapeutic purposes such as promoting healing and inhibiting bacteria.

An apparatus and related aspects for providing reduced pressure to a tissue site are disclosed. The apparatus comprises a source of negative pressure configured to provide negative pressure via a first fluid flow path from an inlet of the source of negative pressure to a wound site. The apparatus further comprises a canister for receiving fluids from the wound site, where the canister has a canister outlet adapted to be fluidly coupled to the inlet of the source of negative pressure and a canister inlet adapted to be fluidly coupled to the wound site. The apparatus further comprises an electronically controllable valve configured to release negative pressure from the wound site via a second fluid flow path, a first pressure sensor configured to monitor a pressure level in the first fluid flow path, and control circuitry operatively connected to the source of negative pressure, the electronically controllable valve, and to the pressure sensor. The control circuitry is configured to estimate an amount of exudate to be moved from the wound site via a portion of the first fluid flow path to the canister, and control a duration of a flushing period and / or a duration of an inter-flushing period based on the estimated amount of exudate. The flushing period defines a time period during which the electronically controllable valve is opened and the source of negative pressure is activated for transporting fluid from the wound site to the canister, and the inter-flushing period defines a time between two consecutive flushing periods.

The invention relates to the technical field of negative pressure drainage, and discloses interval liquid suction type miniature negative pressure drainage equipment which comprises a drainage bottle and a bottle cap matched with the drainage bottle, a liquid suction connecting pipe and an air exhaust connecting pipe are arranged on the bottle cap, the liquid suction connecting pipe is connected with a liquid suction pipe, and the air exhaust connecting pipe is connected with an air exhaust pipe; when the drainage bottle is replaced, the pressing assembly drives the segmented control assembly to sequentially drive the corresponding rotating shafts and the corresponding rotating plates to act, the end openings of the liquid suction connecting pipe and the air exhaust connecting pipe are sequentially blocked through the blocking plates, the clamping assembly is matched for limiting to maintain the negative pressure of the pipeline, and seepage liquid is prevented from dripping; after a new bottle is replaced, the clamping assembly is pressed to reset the pressing assembly step by step, the subsection control assembly firstly relieves blocking of the air exhaust connecting pipe, the negative pressure pump is started to enable the new bottle to reach preset negative pressure, and then blocking of the liquid suction connecting pipe is relieved, so that the problem that negative pressure disappears due to direct communication between the atmospheric pressure of the new bottle and the negative pressure of a pipeline is solved; and wound soaking and infection risks caused by the fact that exudate flows back to the dressing are prevented.

Dermatitis is a common skin disease, patients often suffer from strong pruritus, pain, many exudates and easy relapse in the later period, and although the prior art has a certain curative effect, the prior art has the defects of long healing time, low curative effect, slow wound healing speed and the like. The invention provides a method for rapidly treating dermatitis caused by unknown reasons, which is low in treatment cost, wide in raw material source, simple in medicament preparation, good in curative effect and capable of rapidly treating dermatitis caused by unknown reasons. The technical scheme is as follows: the mass ratio of sulfur to rapeseed oil to roxithromycin is (0.7-1.3): (4.7-5.3): (0.17-0.23); wherein the sulfur is crushed and then sieved by a 80-100-mesh sieve, the three raw materials are uniformly mixed according to a ratio and are used immediately after being prepared, and when the dermatitis is treated, the affected part of the skin is cleaned and disinfected by using a 3.0-3.5% hydrogen peroxide solution, is uniformly coated with a compound medicament and then is bound by using sterile gauze, and the medicament is changed once every 0.5 days after primary treatment until the dermatitis is cured.

The invention relates to the technical field of medical instruments, in particular to a collecting device for preventing exudate of a drainage tube from leaking. Comprising a connecting seat arranged on a drainage tube and a sealing cover fixedly connected with the connecting seat, wherein the sealing cover is of an arc-shaped cover structure which is arranged on the peripheral skin of the cannula opening in a sealing and covering mode; a liquid collecting bag is arranged at the bottom of the sealing cover, and a negative pressure air exhaust connector communicated with the interior of the sealing cover is arranged on the connecting base. The vacuum adsorption principle of the annular negative-pressure sealing groove is used for replacing traditional medical glue for pasting, influences of skin oil outlet, perspiration or hair are avoided, sealing is lasting, and chemical stimulation to the skin is avoided. And the chronic disease of sealing failure caused by seepage'injection 'during cough and sneezing in clinic is solved. And the stability of the sealing edge is ensured through the matching of the buffering of the cover body and the powerful negative pressure adsorption. In addition, through active negative pressure drainage, it is ensured that the skin around the tube is always in a relatively dry environment, and skin dipping erosion is completely eradicated.

The invention discloses a medical hydrogel dressing for wound repair and a preparation method thereof, and relates to the technical field of hydrogel materials.The hydrogel dressing is prepared in a chemical cross-linking mode and a physical cross-linking mode, and the obtained hydrogel dressing can effectively reduce the wound infection risk and promote wound healing under the action of a natural antibacterial agent; the medical dressing has the advantages of being good in elasticity, ductility and adhesion, capable of being better attached to the complex wound surface shape, protecting the wound surface and absorbing exudate, capable of adapting to friction and displacement caused by body movement, capable of bearing a certain mechanical load without being broken, capable of prolonging the service life of the dressing and capable of improving the wound surface treatment efficiency.

1. The name of the design product: negative pressure suction device. 2. The use of the design product: used for providing stable and continuous controllable negative pressure for wound surface in negative pressure closed drainage treatment system, promoting the drainage of exudate and providing negative pressure environment for the tissue around the wound surface. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention relates to a wound surface treatment agent and a preparation method thereof, and relates to the technical field of medical instruments, polyvinylpyrrolidone (PVP) is adopted to carry out organic molecule inclusion and stabilization on chlorine dioxide, so that chlorine dioxide keeps a dissolved state and chemical stability in a physiologically compatible weakly alkaline solution, and can be directly used without acidic activation; therefore, chemical stimulation of acid to the wound surface is avoided. When the stable system is in contact with wound exudate, the stable system can gradually release chlorine dioxide molecules with strong oxidation activity under the action of a body fluid ion environment, and a broad-spectrum and efficient antibacterial effect is locally played on a wound. Meanwhile, the released chlorine dioxide can promote the local blood coagulation process through the oxidation effect, and the healing process is facilitated. On the basis, the comprehensive performance is further enhanced through dosage form design, the effects of rapidly astringing wounds, reducing infection and promoting healing are achieved, and meanwhile the skin wound dressing is suitable for nursing skin wounds with different characteristics.

The utility model discloses a seepage drainage bag which comprises a main body unit and a branch pipe unit, the main body unit comprises a drainage bag body, a groove hole is formed in the bottom of the drainage bag body, an annular double-face sticker is pasted to the bottom of the drainage bag body and located outside the groove hole, an inwards-concave fusiform disc is fixed in the drainage bag body and communicated with the groove hole, and the annular double-face sticker is located outside the groove hole. A liquid drainage groove and a through groove are formed in the inwards-concave fusiform disc, the branch pipe unit comprises a flow guide bag, a first round hole is formed in the bottom of the flow guide bag, and a second round hole is formed in the top of the drainage bag body. Due to the arrangement of the inwards-concave fusiform disc, percolate can conveniently flow into the drainage bag body, the drainage tube is used for guiding hydrops in the body of a patient out, in addition, due to the cooperation of the rectangular block and the first arc-shaped groove, good sealing is kept between the diversion bag and the drainage tube, the percolate is prevented from flowing out along the drainage tube, and the drainage effect is improved. By means of the device, percolate can be collected more conveniently, and the trouble caused by frequent gauze replacement is avoided.

The utility model discloses an exudate collecting bag, which comprises a bag body and an exudate collecting port arranged on the back side of the bag body, and is characterized by further comprising a patch, one side of the patch is provided with an adhesive layer, the other side of the patch is provided with a connecting piece which is detachably connected with the bag body, and the patch is provided with a through hole which is used for being communicated with the exudate collecting port. A negative pressure balloon is arranged outside the bag body and communicated with an inner cavity of the bag body through a drainage tube. The utility model provides a percolate collecting bag which can promote a wound to heal quickly in a mode of actively sucking wound percolate and reduce the risk of wound infection.

The application discloses a flexible intelligent patch and method for in-situ monitoring of wound bacteria. The patch comprises a packaging adhesive layer, a control circuit, an electrode array and a wound exudate absorption layer. The control circuit and the electrode array are electrically connected through the electrode array connection pad to form a combined planar structure, which is embedded in the packaging adhesive layer. The wound exudate absorption layer is fixed to the lower surface of the electrode array package. The electrode array comprises a staphylococcus aureus transpeptidase sensing electrode and a pyocyanin sensing electrode. The application utilizes a near field communication module to realize wireless power supply and data interaction through a mobile terminal, and adopts an electrochemical analysis method to realize in-situ real-time measurement of wound exudate, so as to realize simultaneous monitoring of the infection conditions of staphylococcus aureus and pseudomonas aeruginosa in the wound. The patch provides an instant detection platform for the management of infected wounds, and has the advantages of flexible intelligence, real-time in-situ and convenient operation.

The utility model discloses an excrement collecting bag for a fecal incontinence patient, which belongs to the technical field of excrement collecting bags and comprises a dressing patch attached to the periphery of the stoma skin of the patient and an excrement collecting bag for collecting urine and excrement of the patient, the excrement collecting bag is attached to the dressing patch, and the stoma of the patient corresponds to an opening of the excrement collecting bag. A blocking and separating layer is arranged in the excrement collecting bag, a urine discharging opening is formed in the lower end of the excrement collecting bag, an excrement sampling hole is formed in the excrement collecting bag, and a plugging cap for plugging the excrement sampling hole is arranged on the excrement collecting bag; according to the device, by arranging the excrement collecting bag and the dressing paste, the excrement collecting bag can be pasted to the stoma of the patient, urine and excrement of the patient can be conveniently discharged, the conditions that skin around the stoma of the patient is inflamed and exudates and the like can be effectively protected in the using process, meanwhile, medical staff can conveniently sample the urine and excrement of the patient, and the sampling efficiency is improved. Urine leakage caused by extrusion of the excrement collecting bag is avoided, and risks of contact infection of urine and stoma of a patient and the like are reduced.

The invention provides a clinical anti-permeation drainage tube for medical oncology, and belongs to the technical field of medical instruments. Comprising a drainage tube, a protective cover is slidably connected to the outside of the drainage tube, a low-sensitivity pasting strip adheres to the side face of one end of the protective cover, an openable sealing strip adheres to the other side face of one end of the protective cover, a fixing sleeve is connected to the outer wall of the other end of the protective cover in a clamped mode, and the fixing sleeve is in threaded connection with the outer wall of the drainage tube. A plurality of clamping blocks are fixedly connected to the inner wall of the protective cover; a penetrating fluid absorbing assembly is arranged in the protective cover and is used for absorbing penetrating fluid generated at the wound; a peculiar smell absorption assembly is arranged on the outer side of the penetrating fluid absorption assembly. The high-absorption pad is in direct contact with a wound, percolate is quickly adsorbed and locked, and then the percolate is uniformly drained through the herringbone diversion trenches, so that local accumulation of the percolate at a certain position is effectively prevented.

The wound exudate collecting and cleaning device comprises a collecting frame, an adsorption cushion layer, a drainage collecting body, drainage holes, a flow guide side plate and a connecting pipe, the adsorption cushion layer is fixedly arranged at the upper end of the collecting frame in a clamped mode, and the drainage holes are evenly formed in the outer side end of the collecting frame in a penetrating mode; the flow guide side plate is fixedly connected to the outer side end of the collecting frame through bolts, the connecting pipes are evenly and fixedly connected to the outer side end of the flow guide side plate, and the drainage collecting bodies are evenly arranged at the outer side end of the collecting frame. The medical drainage bag can be conveniently laid and comfortably used, and seepage flowing out of different positions of a human body can be conveniently collected and treated.

The invention discloses a negative pressure drainage apparatus for collecting wound exudate specimens, which comprises a tube body for sucking and storing wound exudate, the tube body is used for sucking and storing exudate samples, the tube body is connected with a bottle body for generating negative pressure and providing the negative pressure for the tube body, the bottle body is connected with a bottle cap for installing the tube body, and the bottle cap is connected with the tube body. The bottle further comprises a piston mechanism installed in the bottle body, one end of the piston mechanism extends out of the bottle cap, a guide hole is correspondingly formed in the bottle cap, and the piston mechanism divides an inner cavity of the bottle body into a negative pressure cavity with the upper side sealed and a balance cavity with the lower side communicated with the outside. The pinching piston mechanism can pump the exudate into the tube body through the negative pressure of the negative pressure cavity so as to realize sample collection and single-hand operation, the single-hand operation is convenient, compared with an injector, direct pinching can be realized, the single-hand operation can be realized, the diameter of the bottle body is larger, so that the stroke is shorter, and the bottle body is more suitable for the single-hand pinching operation.

The utility model discloses a kind of water-absorbing dressings, it is related to dressing technical field, including backing layer, the side fixedly connected with absorption core layer of backing layer, the outside fixedly connected with contact layer of absorption core layer, the outer layer of contact layer to inner layer is sequentially composed of response layer and biological activity layer, the outer layer of absorption core layer to inner layer is sequentially composed of flow guide layer, absorption layer and prevent reverse osmosis layer, the outside of contact layer is adhered with release paper, the side of absorption core layer of backing layer is adhered with pasting layer, the outside fixedly connected with positioning block of backing layer, the outside fixedly connected with belt of positioning block, the end fixedly connected with connecting block of belt, and connecting block and the positioning mechanism between backing layer are installed. The device is automatically adjusted hydrophilic and hydrophobic through temperature-sensitive hydrogel, combined with silk fibroin to continuously promote healing, flow, absorption and reverse osmosis prevention structure synergistic management exudate, supplemented with flexible traction design to reduce peeling damage, interlayer closely adheres to avoid side leakage, improve nursing efficiency and comfort.

The invention discloses a collecting bag body structure, particularly relates to a collector for exudate after an abdominal cavity operation, and provides a drainage collector for the abdominal cavity operation in order to solve the problem that an existing ostomy bag cannot meet the requirement for collecting liquid in a drainage tube and exudate at an opening in the surface of a human body at the same time. An opening is formed in the other side, opposite to the base plate, of the bag body, a connecting and guiding bag body is arranged at the opening, the opening of the connecting and guiding bag body is connected with the opening of the bag body, the portion, exposed on the outer side, of the connecting and guiding bag body is divided into a plurality of branch pipes, and each branch pipe is gradually reduced from large to small, namely the size of the portion, connected with the connecting and guiding bag body, of the branch pipe is the largest. Liquid in the drainage tube can be effectively shunted, a plurality of wounds are led out through different shunting tubes, monitoring and testing can be effectively provided, the nursing workload is reduced, the product is industrially produced, the consistency of the product is high, the cost is low, and the medical cost of patients is reduced.

1. Name of the design product: Anti-clogging drainage tube (oncology). 2. Use of the design product: used for draining exudate and contaminated liquid in the body to the outside of the body. 3. Design points of the design product: in the overall shape design. 4. Picture or photo best indicating the design points: perspective view 1.

The utility model relates to the technical field of medical materials, functional materials and wound dressings, in particular to a wound dressing with a micro pump, which comprises a breathable adhesive tape, a first dustproof film, a second dustproof film, a breathable layer, an outer hydrophobic layer, a hydrophilic interlayer, an outer hydrophilic layer, a heating layer and an outer adhesive film. A first dustproof film and a second dustproof film are arranged at the lower end of the breathable adhesive tape, and the heating layer and the outer adhesive film form a heating mechanism used for promoting blood flow. According to the micro-pump type wound dressing with the one-way seepage discharging function, excessive seepage can be discharged from a wound in a one-way mode, so that the wound surface is prevented from being soaked by biological liquid, the heating layer emits heat, blood circulation of the wound surface is accelerated, the healing speed of the wound is increased, and the wound healing rate is increased. The heat conduction of the thin copper wires can make the heat distribution of the heating layer more uniform, and the thin copper wires can play a role in shaping, so that the two ends of the breathable adhesive tape are prevented from tilting in the use process.

The application discloses a self-healing hydrogel dressing. The self-healing hydrogel dressing is prepared by a freeze-thaw cycle method from polyvinyl alcohol, maltodextrin, allantoin and glycerol; the mass percentage concentration of the polyvinyl alcohol is 6-15%; the mass ratio of the maltodextrin to the polyvinyl alcohol is (0.5-2):1; and the mass ratio of the allantoin, the glycerol and hot water is 1-3:1-2:1-2. In order to obtain a mixed solution of the allantoin, the glycerol and the hot water, the glycerol is first mixed with the hot water, and then the allantoin is mixed with the glycerol and the hot water. The hydrogel dressing has a porous three-dimensional network structure, good water absorption, can absorb exudates, can provide a moist microenvironment, can reduce wound temperature and pain, and can prevent microorganisms from planting on a wound surface; in addition, the hydrogel dressing also has good self-healing performance and antibacterial effect, has a good treatment and repair effect on incised wounds, and is suitable for skin wound healing.

An apparatus and related aspects for providing reduced pressure to a tissue site are disclosed. The apparatus comprises a source of negative pressure configured to provide negative pressure via a first fluid flow path from an inlet of the source of negative pressure to a wound site. The apparatus further comprises a canister for receiving fluids from the wound site, where the canister has a canister outlet adapted to be fluidly coupled to the inlet of the source of negative pressure and a canister inlet adapted to be fluidly coupled to the wound site. The apparatus further comprises an electronically controllable valve configured to release negative pressure from the wound site via a second fluid flow path, a first pressure sensor configured to monitor a pressure level in the first fluid flow path, and control circuitry operatively connected to the source of negative pressure, the electronically controllable valve, and to the pressure sensor. The control circuitry is configured to estimate an amount of exudate to be moved from the wound site via a portion of the first fluid flow path to the canister, and control a duration of a flushing period and / or a duration of an inter-flushing period based on the estimated amount of exudate. The flushing period defines a time period during which the electronically controllable valve is opened and the source of negative pressure is activated for transporting fluid from the wound site to the canister, and the inter-flushing period defines a time between two consecutive flushing periods.

The invention relates to the technical field of medical adhesives, in particular to a stoma base plate adhesive and a preparation method thereof. In the prior art, the problems of insufficient adhesion stability, non-repeated adhesion and the like in a wet environment exist. By means of the three-area gradient functional structure design, the three-area gradient functional structure design comprises the inner ring area close to the stoma, the middle ring area in middle transition and the outer ring area on the periphery, the inner ring area can resist high-concentration exudate invasion and keep adhesive force, and the middle ring area absorbs a small amount of exudate and meanwhile achieves the repeatable pasting function through the thermal response characteristic; the outer ring area is mainly attached to the relatively dry skin surface, and stable peripheral anchoring is provided; meanwhile, a micropore array structure is constructed on the skin contact surface of the mucilage glue, so that the overall adhesive force is remarkably enhanced; the adhesive provided by the invention keeps stable adhesion for a long time in a high-humidity exudation environment, is not easy to cause adhesion failure or spontaneous falling, and can be torn and re-adhered for many times to keep good viscosity.

The present application provides a kind of for burn and scald wound exudate response self-shedding core-shell microgel powder and its preparation method, belong to medical material technical field.The core-shell microgel powder provided by the present application can quickly absorb a large amount of exudate and form a conformal hydrogel in situ after being applied to the wound, providing an ideal wet environment and physical protection for wound healing;Its exudate response characteristics not only can intelligently release active ingredients to actively regulate inflammation and promote repair, but also can achieve gentle self-shedding of the dressing in the later healing stage, greatly improving patient experience and treatment compliance.The product combines efficient liquid management, active therapeutic intervention and painless removal, providing a new and integrated solution for the clinical care of complex exudate wounds such as burns and scalds.

1. The name of the design product: negative pressure drainage device. 2. The use of the design product: for the cleaning of surgical wounds and exudate drainage. 3. The design features of the design product: in shape. 4. The picture or photo that best indicates the design features: perspective view.