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45 results about "Deep wounds" patented technology

Injectable fluid gelatin hemostatic material and preparation method thereof

InactiveCN119792623ASurgical adhesivesSpinal columnDeep wounds
The invention belongs to the technical field of medical hemostatic materials, and particularly relates to an injectable fluid gelatin hemostatic material and a preparation method thereof. The injectable fluid gelatin hemostatic material is prepared from gelatin, a cross-linking agent, polyol, a radiation stabilizer and an emulsifier. The injectable fluid gelatin hemostatic material not only has good biocompatibility, absorbability and rapid hemostasis capability, but also can be directly injected to a bleeding part to adapt to and cover the whole wound surface, so that the injectable fluid gelatin hemostatic material adapts to a complicated or deep wound area, is particularly suitable for the surgical fields of neurosurgery, spinal surgery and the like requiring precise hemostasis, and has a wide application prospect. The traditional Chinese medicine composition shows a remarkable clinical effect.
Owner:TIANXINFU (BEIJING) MEDICAL APPLIANCE CO LTD

Deep wound surface filling dressing

ActiveCN222983252UAbsorbent padsBandagesDeep woundsProbiotic bacteria
The utility model relates to a deep wound surface filling dressing, which belongs to the technical field of medical dressings, comprises a dressing base body made of alginate, and is characterized by further comprising a structural core fixedly connected in the dressing base body and made of fibrilia and microcapsules fixedly connected on the outer surface of the dressing base body, the structural core is arranged in the length direction of the dressing base body in a full-length mode, and the microcapsule comprises a capsule wall with an inner cavity for sealing the active probiotics. The multifunctional hemostatic bandage has multiple functions of stopping bleeding, resisting bacteria, promoting wound healing, being easy to take out and the like, and due to the fact that a material fusion mode is adopted, the multifunctional hemostatic bandage is low in manufacturing cost and high in manufacturing efficiency, brings good news to patients and has great popularization value.
Owner:ARMY MEDICAL UNIV

A debridement care device for medical care

PendingCN122272944ADeep woundsNursing care
This invention discloses a wound cleaning and nursing device for medical care, belonging to the field of medical care equipment technology. It includes a main unit, a rinsing device, a waste suction device, and a fixation device. The rinsing device generates negative pressure within a negative pressure tube using the Venturi effect, drawing in outside air and spraying a spiral water stream through a first nozzle, a guide plate, and a third nozzle. Simultaneously, a water stream containing dense bubbles is sprayed through a second nozzle, utilizing the cavitation effect to achieve deep wound cleaning. The waste suction device is mounted on the nozzle via a ball joint, using negative pressure generated by a negative pressure pump to immediately recover waste fluid. The fixation device generates ultrasonic vibrations through an energy guide plate and a transducer to assist in the removal of small debris from the wound, and, in conjunction with bandages and fixation rings, achieves stable limb immobilization. This invention solves the problems of incomplete wound cleaning and limited rinsing effects in existing wound cleaning equipment, significantly improving the effectiveness and efficiency of wound cleaning and nursing care.
Owner:THE 968TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE

"a curcumin based powder spray formulation"

PCT designated stageWO2025186842A8Aerosol deliveryAntinoxious agentsDeep woundsAluminum can
The present invention discloses a formulation of curcumin basedpowder spray that includes 95% Curcuma longa 2-6 %w / w, isopropyl myristate 01-0.2 %w / w, Aluminum Starch Octynyl Succinate 3-7 %w / w, n-pentane 18.7-22.7 %w / w and propellant 68-72 %w / w. Also disclosed is a process for preparation of the formulation of curcumin based antiseptic powder spray. This powder spray of the present invention is applied by spraying the same from an aluminum can directly on to a wound site to provide antiseptic protection without physically touching the wound. The powder spray is enhanced with the healing properties of turmeric (Curcuma longa), forming a protective layer on the wound site, effectively treating deep wounds, cuts, and abrasions from infections.
Owner:MIDASCARE PHARMACEUTICALS PVT LTD

An antibacterial hollow mesoporous silica sphere injectable hydrogel dressing and a preparation method thereof

ActiveCN121015954BBandagesDeep woundsPolyethylene glycol
The application discloses an antibacterial hollow mesoporous silica ball injectable hydrogel dressing and a preparation method thereof, and belongs to the technical field of hydrogel dressing preparation. The antibacterial hollow mesoporous silica ball injectable hydrogel dressing provided by the application is obtained by self-crosslinking of a four-arm polyethylene glycol modified by o-phthaldehyde as a crosslinking agent and a hollow mesoporous silica ball loaded with tannic acid in a solvent. Compared with the prior art, the antibacterial hollow mesoporous silica ball injectable hydrogel dressing provided by the application can be gelled without the participation of catalase, has a better gelation time, and can be injected and in-situ formed, so that deep wounds can be treated (the existing hydrogel is too fast or too slow in gelation, and can only be directly made into a gel for use in shallow wounds); moreover, the mechanical strength of the gel can be improved; and the hydrogel dressing has good biocompatibility, degradability, antibacterial property and good repair promoting capacity.
Owner:INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI

Deformable hemostatic device

PendingCN120345948ASurgeryDressingsInjection portDeep wounds
The deformable hemostasis device comprises a tubular connecting body, a balloon is installed on the connecting body, a far-end drainage opening is formed in the end, extending out of the balloon, of the connecting body, and at least one near-end drainage opening is formed in the side, located on the outward side of the balloon, of the connecting body; the balloon is connected with an inner core, the inner core is arranged in the connecting body in a penetrating manner, and a drainage channel is formed between the inner core and the inner wall of the connecting body; a flushing and injecting opening and an outer end drainage opening are formed in the outward end of the connecting body, and the flushing and injecting opening and the outer end drainage opening are obliquely arranged relative to the connecting body. The hemostatic device is simple in structure, reasonable in design and easy and convenient to operate, the transparent hose serves as a connecting body, the balloon can be stuffed into the inner side of a deeper wound through the hose for hemostasis, meanwhile, the outer end drainage opening is connected with the external connecting pipe, liquid in the wound is drained, hemostasis is effectively assisted, and the hemostatic effect is good. The size of the balloon can be adaptively changed along with contraction of the wound part, adaptability is high, and the hemostasis effect is good.
Owner:TIANJIN FIFTH CENT HOSPITAL (PEKING UNIV BINHAI HOSPITAL)

Skin grafting device for deep wound treatment

The utility model relates to the technical field of medical instruments, and discloses a skin grafting device for deep wound treatment, which comprises a first pincer body and a second pincer body which are hinged, the first pincer body and the second pincer body have the same structure, each of the first pincer body and the second pincer body comprises a pincer head and a pincer handle, the pincer heads partially extend downwards to form pincer mouths, and the pincer mouths are connected with the pincer handles. The outer side walls of the pincer mouths are conical surfaces, the cross sections of the pincer mouths are sequentially reduced in the direction, away from the pincer head, of the pincer mouths, conical grooves are formed in the inner side walls of the pincer mouths, the first pincer body and the second pincer body rotate relatively till the two pincer mouths are attached, and the two conical grooves are matched to form a positioning hole used for planting a skin column; holding parts are arranged at the ends, away from the forceps mouths, of the forceps handles, and reserved holes for grasping are formed in the holding parts. The utility model has the beneficial effects that the three-dimensional implant can be applied to a three-dimensional implant operation, and is convenient for realizing skin column transplantation.
Owner:DONGGUAN HOUJIE HOSPITAL (DONGGUAN EMERGENCY HOSPITAL) +1

Starch-based medical adhesive as well as preparation method and application thereof

ActiveCN120204450ASurgical adhesivesDeep woundsMedicine
The invention discloses a starch-based medical adhesive as well as a preparation method and application thereof, and particularly relates to the technical field of biomedical materials. The method comprises the following steps: firstly, adding modified starch 1 into water, and heating, stirring and gelatinizing in an oil bath pan to obtain a modified starch 1 solution; adding the modified starch 2 into water, and heating, stirring and gelatinizing in an oil bath pan to obtain a modified starch 2 solution; mixing the modified starch 1 solution and the modified starch 2 solution, and uniformly stirring to obtain a modified starch compound; and finally, performing low-temperature freezing treatment on the modified starch compound, performing freeze-drying treatment, and crushing the freeze-dried modified starch compound to obtain the starch-based medical adhesive. The medical adhesive disclosed by the invention has good biocompatibility, can be degraded into a non-toxic and harmless product in an organism, has relatively strong wet tissue adhesion strength and good tissue compliance, is simple in process, can directly act on skin wounds, deep wounds and wounds which are difficult to reach by an operation, and is simple and convenient to use.
Owner:BEIJING UNIV OF CHEM TECH

Wound cleaning equipment for sea rescue

PendingCN121401531AEnemata/irrigatorsSurgeryMarine engineeringDeep wounds
The invention discloses wound cleaning equipment for sea rescue, and relates to the technical field of medical auxiliary instruments, the wound cleaning equipment comprises an upper clamping seat, a lower clamping seat, a tubular part, a liquid medicine tank and two shifting blocks, the two shifting blocks are slidably connected to the upper clamping seat, and the shifting blocks freely rotate in the upper clamping seat in the axial direction of a clamping opening; the liquid spraying part is mounted on the tubular part and is in through connection with the tubular part; the poking unit is arranged on the upper clamping base and used for driving the two poking blocks to move in the direction away from each other. According to the device, when the lower clamping seat and the upper clamping seat rotate till the two clamping openings are combined to form a circular hole, a limb can be fixed and limited, the poking unit drives the two poking blocks to move in the direction away from each other, then the two poking blocks can generate traction force in two opposite directions on a deeper wound, the wound can be poked aside, and the wound is prevented from being damaged. Therefore, the interior of the wound can be exposed, the deeper part of the wound can be disinfected by a disinfectant conveniently, and single-person operation is facilitated.
Owner:THE 971ST HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY NAVY

A starch-based medical adhesive and its preparation method and application

ActiveCN120204450BSurgical adhesivesPolymer scienceDeep wounds
The present invention discloses a starch-based medical adhesive and its preparation method and application, specifically relating to the field of biomedical materials technology. The method comprises first adding modified starch 1 to water, heating and stirring in an oil bath for gelatinization to obtain a modified starch 1 solution; adding modified starch 2 to water, heating and stirring in an oil bath for gelatinization to obtain a modified starch 2 solution; then mixing the modified starch 1 solution and the modified starch 2 solution, stirring evenly to obtain a modified starch complex; finally, freezing the modified starch complex at low temperature, freeze-drying it, and crushing the freeze-dried modified starch complex to obtain a starch-based medical adhesive. The medical adhesive of the present invention has good biocompatibility, can be degraded into non-toxic and harmless products in the body, has strong wet tissue adhesion strength and good tissue compliance, is simple to process, can be directly applied to skin wounds, deep wounds, and wounds in areas that are difficult to reach through surgery, and is simple and convenient to use.
Owner:BEIJING UNIV OF CHEM TECH

Multi-layer composite dressing with interlayer continuous antibacterial network and preparation method of multi-layer composite dressing

ActiveCN121971678AAbsorbent padsBandagesBiofilmDeep wounds
The invention relates to the technical field of medical instruments, in particular to a multi-layer composite dressing with an interlayer continuous antibacterial network and a preparation method of the multi-layer composite dressing. The dressing comprises at least two polymer base material layers, and each polymer base material layer is provided with a through pore network; the surface of the framework of each polymer base material layer is coated with the metal antibacterial layer, so that a metalized framework is formed; the connecting structures are arranged between the adjacent polymer base material layers; the connecting structures are distributed in a discrete point shape between the adjacent polymer base material layers and are used for fixedly connecting the adjacent polymer base material layers; and the metallized frameworks of the adjacent polymer base material layers are in physical contact at the interlayer interface to form an electrical path of the interlayer metal antibacterial layer. According to the dressing disclosed by the invention, a three-dimensional continuous electrochemical antibacterial network in the full-thickness direction is constructed, and the industrial problems of internal biological membrane breeding and drainage blockage in deep wound nursing are effectively solved.
Owner:DABO MEDICAL TECH CO LTD

Disposable fluorescent wound probe

The utility model discloses a disposable fluorescent wound probe which comprises a disposable probe body, a folding assembly is arranged in the disposable probe body, and light-emitting assemblies are arranged on the annular side face of the disposable probe body and the annular side face of the folding assembly. By means of the arrangement, the use length of the disposable probe can be increased through the unfolded lengthened probe, so that the disposable probe and the lengthened probe can detect a deep wound, the compression spring can extrude the locking bead through the extrusion piece, the locking bead is clamped in the corresponding positioning hole, and therefore the lengthened probe unfolded in place is subjected to auxiliary positioning; the left side of the annular side face of the disposable probe is filled with the first luminescent powder so that the first luminescent powder can emit fluorescent light outwards through the first transparent blocking piece to irradiate surrounding wound tissue, and the second luminescent powder can emit fluorescent light outwards through the second transparent blocking piece to irradiate the surrounding wound tissue.
Owner:FUJIAN PROVINCIAL HOSPITAL

Pretreatment device for clean vegetable detection

The invention relates to the technical field of clean vegetable detection pretreatment devices, in particular to a pretreatment device for clean vegetable detection. The treatment table is fixed to the inner side wall of the conveying roller through a plurality of connecting columns; the support frame is fixed on the side wall of the conveying roller; the convex block is arranged at the upper part of the treatment table; a plurality of moving frames slide on the side wall of the convex block along a circular array, connecting plates are arranged in the moving frames, and cutters are arranged at one ends of the connecting plates; the adjusting mechanism is connected with each moving frame and is used for adjusting the cutting angle of the cutter; a plurality of sliding holes are formed in the top wall of the convex block, a sliding hole is formed in the top wall of one end of each moving frame, and a sampling pipe is slidably connected to the inner side wall of each sliding hole. According to the invention, the damage type is visually identified, the angle and the cutting depth of the cutter are automatically adjusted, 'skin gouges' are shallowly cut, 'deep pricking 'is deeply cut, the cutting amount is minimized, and the waste of edible parts is reduced.
Owner:WANNAN MEDICAL COLLEGE +1

Handheld portable special normal saline wound flusher

The utility model discloses a handheld portable special normal saline wound irrigator, which belongs to the technical field of medical equipment, and comprises a bottle body and an irrigating tube, a liquid outlet is arranged at the top of the bottle body, an installation head is arranged on the bottle body, the top of the installation head is connected with a second breaking cover through a second pre-tearing part, and the second breaking cover is connected with the irrigating tube through a second pre-tearing part. And a connector matched with the mounting head is arranged at the bottom of the flushing pipe. The bottle body is integrally designed, can be held by hand, is suitable for various occasions such as hospitals, bedside and households, and is simple and reasonable in design, convenient to operate, easy to master and put into use, so that the flushing efficiency is improved; the dosing port is arranged, various flushing fluids can be prepared for flushing according to wound conditions, and the one-way valve is arranged to prevent backflow from polluting the flushing fluids in the bottle, so that the infection incidence rate is reduced; the flushing pipe aiming at the deep wound is additionally arranged and is connected to the mounting head at the liquid outlet through threads, so that the flushing pipe can be prevented from slipping off due to pressure when the deep wound is flushed.
Owner:TAIYUAN CENT HOSPITAL

Hemostatic freezing gel capable of rapidly memorizing shape as well as preparation method and application of hemostatic freezing gel

The invention discloses hemostasis freezing gel with a rapid shape memory function as well as a preparation method and application of the hemostasis freezing gel. The preparation method comprises the following steps: preparing an interpenetrating polymer network precursor solution by using an acrylamide monomer, a sodium alginate solution and a chemical cross-linking agent; polymerizing a frozen precursor solution to construct a first network; and carrying out ionic crosslinking on a metal salt solution with a certain concentration to construct a second network, and finally carrying out freeze drying treatment to obtain the double-network hemostatic frozen gel, namely the PAAM / Alg-Mn < + > hemostatic frozen gel. According to the double-network hemostasis freezing gel with the rapid shape memory function, the preparation method and the application of the double-network hemostasis freezing gel, a double-network structure is constructed at the low temperature, the mechanical property and the liquid absorption rate are synchronously improved, and the double-network hemostasis freezing gel has the ultrafast shape memory recovery capacity, the excellent mechanical property and the active blood coagulation function; the material is endowed with multiple functions of active blood coagulation, magnetic response and the like, and rapid and efficient hemostasis on non-compressible deep wounds can be realized.
Owner:SHANGHAI FIRST PEOPLES HOSPITAL

"a curcumin based powder spray formulation"

PCT designated stageWO2025186842A1Aerosol deliveryAntinoxious agentsDeep woundsAluminum can
The present invention discloses a formulation of curcumin basedpowder spray that includes 95% Curcuma longa 2-6 %w / w, isopropyl myristate 01-0.2 %w / w, Aluminum Starch Octynyl Succinate 3-7 %w / w, n-pentane 18.7-22.7 %w / w and propellant 68-72 %w / w. Also disclosed is a process for preparation of the formulation of curcumin based antiseptic powder spray. This powder spray of the present invention is applied by spraying the same from an aluminum can directly on to a wound site to provide antiseptic protection without physically touching the wound. The powder spray is enhanced with the healing properties of turmeric (Curcuma longa), forming a protective layer on the wound site, effectively treating deep wounds, cuts, and abrasions from infections.
Owner:MIDASCARE PHARMACEUTICALS PVT LTD

Disinfection spraying device for nursing

The utility model belongs to the technical field of nursing disinfection, and particularly relates to a disinfection spraying device for nursing, which comprises a liquid medicine containing bottle and a liquid medicine atomizing nozzle, the outer wall of the liquid medicine containing bottle is fixedly connected with a liquid medicine pouring pipeline, and the top end of the liquid medicine atomizing nozzle is provided with a liquid medicine intercepting and soaking assembly. The liquid medicine intercepting and soaking assembly comprises a transparent intercepting cover, a liquid medicine adding pipeline, a liquid medicine supporting plate and an elastic sealing gasket playing a role in sealing and intercepting; the elastic sealing gasket is pressed on the skin of a patient through the liquid medicine supporting plate and can be matched with the transparent intercepting cover to form a semi-closed containing space at the wound of the patient, so that hydrogen peroxide liquid medicine is contained, and the liquid medicine is added into the transparent intercepting cover in cooperation with the liquid medicine containing bottle and the liquid medicine pouring pipeline; the liquid medicine can be gathered and retained at the skin wound of the patient, so that the liquid medicine can disinfect the wound of the patient for a long time, and the cleaning effect of bubbles generated by hydrogen peroxide on dirty wounds and deeper wounds on the wound surface is improved.
Owner:李霞

Preparation method of recombinant collagen hydrogel tissue adhesive for suture-free wound healing

The invention discloses a preparation method of a recombinant collagen hydrogel tissue adhesive for suture-free wound healing, which comprises the following steps: 1, dissolving carboxymethyl chitosan and polylysine in deionized water, adjusting the pH value to be neutral, and adding glutamine transaminase to obtain a solution A; 2, dissolving the recombinant collagen and the four-arm-polyethylene glycol-aldehyde group in deionized water to obtain a solution B; and 3, uniformly mixing the solution A and the solution B to obtain the recombinant collagen hydrogel tissue adhesive for suture-free wound healing. According to the invention, the recombinant collagen is taken as a main component, the hydrogel is rapidly formed by utilizing the synergistic effect of various high-molecular polymers, and the hydrogel has the advantages of good adhesion, antibacterial property, promotion of wound collagen deposition, controllable biodegradation and the like, and the prepared dual-network hydrogel tissue adhesive can be injected into a deep wound and has a good application prospect. The suture line and the suturing nail are replaced to be applied to the aspect of wound suturing, and good application prospects are achieved.
Owner:NORTHWEST UNIV

Application of 68Ga-FAPI in preparation of related reagents for sternum deep wound infection

The invention provides application of 68Ga-FAPI in preparation of related reagents for sternum deep wound infection, and belongs to the field of medicine. The invention provides application of 68Ga-FAPI in preparation of related reagents for early diagnosis, detection, tissue positioning, surgical debridement guidance and post-surgical debridement detection of deep sternum wound infection. By utilizing the FAP specific targeting effect of the 68Ga-FAPI, the accuracy of the 68Ga-FAPI in the aspects of diagnosis, detection and the like is superior to that of a traditional tracer agent, the high focus and background contrast ratio of the 68Ga-FAPI can accurately position infected tissues, and the 68Ga-FAPI has high conversion application value for guiding surgical debridement and postoperative monitoring.
Owner:FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA

Polysaccharide-based hemostatic sponge material for rapid hemostasis of deep wound cavity and preparation method of polysaccharide-based hemostatic sponge material

The invention provides a polysaccharide-based hemostatic sponge material for rapid hemostasis of a deep wound cavity and a preparation method of the polysaccharide-based hemostatic sponge material. The problems that a hemostatic porous material prepared in the prior art is difficult to expand rapidly, poor in hydrophilicity, low in shape recovery rate, large in pores, uneven in pores, low in elastic modulus, poor in compression cycle performance and the like are solved. According to the preparation method, natural polysaccharide is adopted as a raw material, and the porous material which can absorb liquid and expand quickly, and is high in hydrophilicity, good in biocompatibility, high in shape recovery rate, small and uniform in pores, high in elasticity modulus and good in compression cycle performance is prepared through the aging salting-out method and the processes of alkalization, esterification, mixing, aging and forming.
Owner:CHONGQING SCI & INNOVATION CENT OF NORTHWEST POLYTECHNICAL UNIV +1

Polysaccharide-based hemostatic sponge material for rapid hemostasis of deep wound cavity and preparation method of polysaccharide-based hemostatic sponge material

The invention provides a polysaccharide-based hemostatic sponge material for rapid hemostasis of a deep wound cavity and a preparation method of the polysaccharide-based hemostatic sponge material. The problems that a hemostatic porous material prepared in the prior art is difficult to expand rapidly, poor in hydrophilicity, low in shape recovery rate, large in pores, uneven in pores, low in elastic modulus, poor in compression cycle performance and the like are solved. According to the preparation method, natural polysaccharide is adopted as a raw material, and the porous material which can absorb liquid and expand quickly, and is high in hydrophilicity, good in biocompatibility, high in shape recovery rate, small and uniform in pores, high in elasticity modulus and good in compression cycle performance is prepared through the aging salting-out method and the processes of alkalization, esterification, mixing, aging and forming.
Owner:CHONGQING SCI & INNOVATION CENT OF NORTHWEST POLYTECHNICAL UNIV +1

Method and device for a method for preparing a recombinant collagen hydrogel tissue adhesive for seamless wound healing

The invention discloses a preparation method for a recombinant collagen hydrogel tissue adhesive for seamless wound healing. The invention uses recombinant collagen as the main component and utilizes the synergistic effects of various high-molecular polymers to achieve rapid formation of hydrogels with excellent adhesion, antibacterial properties, promotion of collagen deposition at wound sites, and controllable biodegradability. The prepared double-network hydrogel tissue adhesive can be injected into deep wounds, replacing sutures and staples in wound closure applications, with many practical applications.
Owner:NORTHWEST UNIV

Ester copolymer, preparation method thereof and embolism product

The invention relates to an ester copolymer, a preparation method thereof and an embolism product. The ester copolymer is in a semi-solid form; the ester copolymer is obtained by carrying out polymerization reaction on glycerol, dicarboxylic acid and a monomer, and the monomer comprises lactic acid and / or caprolactone. The ester copolymer provided by the invention shows a semi-solid character. The ester copolymer cannot be cured or dissolved at room temperature and under the in-vivo condition of 37 DEG C, convenience and feasibility are provided for clinical use, and the characteristics of easy use and delivery can be achieved especially at the positions, which are not easy to operate, in blood vessels, deep wounds and the like.
Owner:GUANGZHOU MIROSIGHT MEDICAL TECHNOLOGY CO LTD

Bimorphological material for non-compressible hemostasis and preparation method thereof

The invention relates to the technical field of biological materials and medical products, in particular to a bimorphological material for hemostasis without pressing and a preparation method. The chemically crosslinked hemostatic material based on gelatin and carboxymethyl cellulose developed by the invention can realize an excellent hemostatic effect in two forms, and has good rheological property, adhesion, injectability and biocompatibility. Compared with a traditional hemostatic material, the hemostatic material can utilize the good biocompatibility of gelatin and the good water absorption of carboxymethyl cellulose, and has great application advantages in irregular wounds and deeper wounds.
Owner:UNIVERSITY OF HEALTH & REHABILITATION SCIENCES +1

A multilayer composite dressing with interlayer continuous antibacterial network and a method of making the same

The present application relates to the technical field of medical devices, in particular to a multi-layer composite dressing with interlayer continuous antibacterial network and a preparation method thereof. The dressing comprises at least two layers of polymer substrate layers, the polymer substrate layers having a through pore network; a metal antibacterial layer, the metal antibacterial layer being coated on the surface of the skeleton of each polymer substrate layer to form a metalized skeleton; and a connecting structure arranged between adjacent polymer substrate layers; the connecting structure is distributed in discrete point shape between adjacent polymer substrate layers to fix and connect adjacent polymer substrate layers; the metalized skeletons of adjacent polymer substrate layers form physical contact at the interlayer interface to constitute an electrical path of the interlayer metal antibacterial layer. The dressing of the present application constructs a three-dimensional continuous electrochemical antibacterial network in the full-thickness direction, effectively solving the industry problems of internal biofilm breeding and drainage blockage in deep wound care.
Owner:DABO MEDICAL TECH CO LTD

Flushing and disinfecting device for war wound nursing

ActiveCN120939349AEnemata/irrigatorsCannulasDeep woundsWound care
The invention relates to the technical field of war wound nursing, and discloses a war wound nursing flushing and disinfecting device which comprises a flushing and pumping switching mechanism, flow guide mechanisms are arranged at the two ends of the flushing and pumping switching mechanism, an external unit is installed at the output ends of the flow guide mechanisms, and the external unit comprises a flushing head mechanism and a pumping head mechanism. And an air pressure mechanism is mounted at the input end of the flow guide mechanism. According to the flushing and disinfecting device for war wound nursing, by arranging the flushing and pumping switching mechanism, the flow guide mechanism, the flushing head mechanism, the pumping head mechanism and the air pressure mechanism, output power of the air pressure mechanism can be regulated and controlled through the flushing and pumping switching mechanism, switching between a flushing mode and a pumping mode can be achieved, the flushing and cleaning capacity on a wound is guaranteed, and the flushing and disinfecting effect is improved. Deep wounds can be effectively cleaned by means of the negative pressure suction function, and the debridement adaptability to complex wounds is remarkably improved.
Owner:THE FIFTH MEDICAL CENT OF CHINESE PLA GENERAL HOSPITAL

A device for pushing granular hemostatic agent into deeper wounds

The present invention discloses a device for pushing a granular hemostatic agent to a deeper wound, comprising a cylindrical outer cylinder, the front end of which is closed and the rear end is open, and the inner cylinder is provided inside the outer cylinder, the outer diameter of the inner cylinder is consistent with the inner diameter of the outer cylinder, the two cooperate with each other and can slide relatively, and the inner cavity of the cylinder is a hemostatic agent accommodating space; the two ends of the inner cylinder are open. The front end of the outer cylinder is a conical design, and is cut or injection molded into a plurality of fan-shaped petals, each petal is connected by a thin wall or seamlessly, and when an axial force is applied to the inner cylinder, the petals on the outer cylinder are forced to be in an open state. The blockage at the rear end of the inner cylinder is removed, and the push rod is inserted into the inner cylinder to apply pressure to quickly push out the hemostatic agent in the cylinder. The discharge end of the cylinder of the present invention is easier to open to ensure smooth push injection of the hemostatic agent and to maximize the full effect of the hemostatic agent.
Owner:QINGDAO BIOTEMED BIOMATERIAL

Photo-cured xyloglucan hydrogel as well as preparation method and application thereof

The invention relates to the field of biomedical polymer materials, in particular to light-cured xyloglucan hydrogel as well as a preparation method and application thereof. Methacrylic anhydride and xyloglucan react to obtain methallyl esterified xyloglucan, carbon-carbon double bonds are successfully modified on xyloglucan, so that the xyloglucan has photosensitivity, then free radical polymerization is initiated by ultraviolet light to form the photocured xyloglucan hydrogel, and the mechanical property and the stability of the xyloglucan hydrogel are improved. The photocuring xyloglucan pregel solution prepared by the method has good injectability, can be directly delivered to a target site, and is beneficial to filling irregular-shaped and deep wounds. The light-cured xyloglucan pre-gel solution prepared by the invention can generate light-cured xyloglucan hydrogel microspheres, and the porous microsphere structure imitating the extracellular matrix is suitable for drug loading, cell culture scaffolds and tissue engineering construction, so that the application scene of the xyloglucan hydrogel is effectively expanded.
Owner:SHANDONG UNIV

Automatic intermuscular retractor around anus

ActiveCN222888977USurgeryDeep woundsApparatus instruments
The utility model relates to the technical field of medical instruments, in particular to an automatic retractor for intermusculars around an anus, which is mainly used for high anal fistula surgery or high intermuscular abscess surgery, and solves the problems that the operation is inconvenient and the exposed state of a wound surface is unstable when a deep wound surface is exposed by using an Eilius clamp or a drag hook in the prior art. The inner supporting rod extends into a gap between the inner sphincter and the outer sphincter and expands the inner sphincter towards the inner side, and the outer supporting rod expands the outer sphincter towards the outer side; the retractor is provided with a plate-shaped spring; the upper end of the inner supporting rod bends and extends towards the inner side and continues to bend and extend towards the side to form a first connecting section of the retractor, and the extending end of the first connecting section is fixedly connected with one end of a plate-shaped spring; the upper end of the outer supporting rod is bent and extends towards the outer side and is continuously bent and extends towards the side to form a second connecting section of the retractor, and the extending end of the second connecting section is fixedly connected with the other end of the plate-shaped spring; the supporting force of the retractor on the inner sphincter and the outer sphincter comes from the elastic force transmitted by the first connecting section and the second connecting section at the two ends of the plate-shaped spring.
Owner:CHANGZHOU NO 2 PEOPLES HOSPITAL

Radical hysterectomy combined with vaginal lengthening operation restores the vaginal mold and its manufacturing method

The present application provides a kind of cervical cancer radical joint vagina lengthening operation restores vagina mould, solve the problem that existing technology cannot stably and continuously exert medicine or compression deeper wound in vagina to stop bleeding.The present application includes mould body, mould body is hollow cylindrical tube, cylindrical tube includes the support portion of top half-spherical, first through-hole is opened in support portion upper side;Push block is arranged in the cylindrical tube, push block top and semi-permeable membrane form a space, agar block is arranged in the space, second through-hole is opened in push block top, liquid capsule is arranged in push block, and the liquid capsule is connected to agar block by second through-hole;Push block limiting device is arranged on the inner side wall of cylindrical tube.After the technical scheme is used, the present application has the following advantages: the whole support is carried out using mould body, and then the agar block that can be pushed out is accurately positioned to wound, and continuous drug application is carried out to wound.Even if wound bleeds, it can also achieve pressing hemostasis, and accelerate recovery speed.
Owner:JINHUA MCH HOSPITAL (JINHUA MCH FAMILY PLANNING SERVICE CENT)