71 results about "Exudate" patented technology

The invention provides a preparation method and application of tannic acid and panax notoginseng total saponins composite drug-loaded multifunctional hydrogel, and relates to the technical field of biomedical materials.Chitosan, one of the components of the hydrogel, is subjected to carboxymethylation modification to form carboxymethyl chitosan, the carboxymethyl chitosan and aldehyde-modified xanthan gum are subjected to a Schiff base reaction, and the hydrogel is prepared into the multifunctional drug-loaded tannic acid and panax notoginseng total saponins composite drug-loaded multifunctional hydrogel. Meanwhile, tannic acid and panax notoginseng saponins are loaded, and the composite hydrogel is obtained. The hydrogel loaded with the tannic acid and the panax notoginseng saponins, provided by the invention, carries the tannic acid and the panax notoginseng saponins as active substances, can keep the activity of the medicine for a long time, and has good injectability, self-healing property and wound exudate absorption property, the tannic acid can inhibit inflammatory response and reduce the generation and release of inflammatory factors, and the hydrogel loaded with the tannic acid and the panax notoginseng saponins can be used for treating wound exudate. The tannic acid has a wide antibacterial property, such as IL-1beta, IL-6, TNF-alpha and the like, and can inhibit the growth and reproduction of various bacteria, including common pathogenic bacteria such as staphylococcus aureus, escherichia coli and the like.

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 relates to the technical field of drainage devices, and particularly discloses a wound stoma seepage monitoring and automatic drainage device based on intelligent induction, which comprises a wearing mechanism, the wearing mechanism comprises a mounting pasting disc, a monitoring bin and a drainage bag, the mounting pasting disc is fixedly provided with an elastic lantern ring and a drainage mechanism, and the elastic lantern ring and the drainage mechanism are fixed on the mounting pasting disc; the drainage mechanism comprises an inner bin arranged in the monitoring bin, a plurality of built-in cotton strips are arranged on the peripheral side face of the interior of the inner bin, and a monitoring ring is fixedly installed on the peripheral side face of the monitoring bin; according to the device, the installation pasting disc is arranged and used for being attached and fixed to the wound stoma of a patient, the monitoring bin with the drainage tube is installed on the installation pasting disc, seepage is effectively monitored in time through efficient permeability of a built-in cotton strip, a negative pressure drainage system can be started in time to treat the seepage, and therefore the wound stoma of the patient can be effectively monitored. Subsequent pollution and complications are avoided, the whole triggering process is intelligent and automatic operation, and inaccuracy and time delay of manual judgment are avoided.

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.

The invention relates to the technical field of burn surgery, in particular to a portable negative pressure suction device for wound treatment in burn and plastic surgery, which comprises a treatment box, a cover plate and a storage box, the top of the treatment box is provided with an opening, and the cover plate is higher than the storage box; a plurality of first connecting rods are symmetrically hinged to the inner side wall in the width direction of the treatment box, and the top ends of the first connecting rods are hinged to the bottom of the cover plate; connecting plates are symmetrically and fixedly connected to the inner side wall in the width direction of the treatment box, and a plurality of second connecting rods are symmetrically hinged to the sides, away from the inner side wall of the treatment box, of the connecting plates. The top ends of the second connecting rods are hinged to the outer wall of the storage box, and third connecting rods are hinged to the second connecting rods close to the first connecting rods. The cleaning liquid is conveyed to the wound surface position through the conveying assembly, the wound surface can be cleaned or disinfected, bacteria, exudate and necrotic tissue around the wound surface can be removed easily, and a good environment is created for healing of the wound surface.

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.

The invention discloses an anti-inflammatory healing-promoting electrospinning wound dressing and a preparation method and application thereof, and belongs to the technical field of medical dressings. Wherein the outer layer is a hydrophilic nanofiber membrane prepared by adopting single-nozzle electrostatic spinning and is used for absorbing wound exudate; the inner layer is a nanofiber membrane which is of a core-shell structure and prepared by coaxial electrostatic spinning, and a shell layer of the core-shell structure is made of a hydrophobic material and is used for guiding percolate to the outer layer; the core layer of the core-shell structure comprises hydrophilic temperature-sensitive macromolecules, healing-promoting growth factors and anti-inflammatory drugs; the shell layer has hydrophobicity and is used for guiding wound exudate to the hydrophilic nanofiber membrane on the outer layer; when the local temperature caused by wound inflammation is greater than or equal to 37 DEG C, the temperature change causes the drug-loaded temperature-sensitive phase change macromolecules to generate different degrees of phase change, so that the timely and controllable release of the drug is realized, and the healing of the wound surface is ensured.

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.

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.

Embodiments of negative pressure wound therapy apparatuses and methods for using such apparatuses are disclosed. In some embodiments, a negative pressure wound therapy apparatus includes a controller configured to determine a level of exudate in a canister (or a dressing) based at least in part on one or more characteristics of pressure signals generated by a negative pressure source and monitored by a pressure sensor. One such characteristic of the pressure signals can be amplitude, which may increase as a level of exudate in the canister (or dressing) increases. The canister (or dressing) can include a filter configured to become occluded in order to prevent overflow of the canister (or dressing). The controller can be additionally configured to detect and indicate a canister (or dressing) pre-full condition before the filter becomes occluded. More efficient and reliable operation of the negative pressure wound therapy apparatus can thereby be attained.

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.

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, an electronically controllable valve configured to release negative pressure from the wound site via a second fluid flow path, and a pressure sensor configured to measure a pressure level in the first fluid flow path or the second fluid flow path. The apparatus further comprises control circuitry configured to execute a flushing sequence that is adapted to increase the amount of exudate that is removed from the wound site.

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.

Devices and methods herein remove water from human or animal biological waste fluids using one or more forward osmosis filters. The devices allow for the volume of liquid or semi-liquid waste, including potentially infectious liquid waste, to be filtered to reduce potential exposure of healthcare staff to infectious liquid waste. On a hospital, healthcare staff, or individual patient basis, removing water and concentrating the waste can reduce challenges in management and disposal of the waste. Devices herein use forward osmosis to manage and filter, using one or more suitably sized filter(s), biological fluid exudate from wounds. The devices can be constructed to transport water present in the exudate away from a wound. The wound treatment devices herein not only allow for fluid from wounds to be filtered but also provide structures that can protect wounds from external contaminants, including bacteria and viruses. The wound treatment devices can be incorporated into negative pressure wound therapy systems, if desired.

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.

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.