33 results about "Closed wounds" patented technology

Novel compositions and systems for closure of wounds with antimicrobial effectiveness are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2-5 minutes.

The invention discloses a closed wound core assembling and overturning mechanism which comprises three vertical alignment mechanisms and lifting mechanisms, the vertical alignment mechanisms are installed on the ground, the three vertical alignment mechanisms are distributed in an annular array, each vertical alignment mechanism is provided with the corresponding lifting mechanism, and the lifting mechanisms are installed on the ground. A sliding assembly is arranged between each set of vertical alignment mechanism and the ground, and a jacking assembly is installed between each set of vertical alignment mechanism and the corresponding sliding assembly. And the closed wound core can be automatically aligned and assembled conveniently, and the closed wound core is overturned after being bundled by a worker, so that the processing of the closed wound core is completed.

A punch biopsy apparatus to quickly and simply excise a sample of a chosen size and depth while preserving specimen morphology along with an independently operated mechanism to close the excision site. This design includes a body with a cylindrical needle to create a circular incision around the tissue, an independently rotated blade located within the cylindrical needle for excision at the base of the tissue, a plunger to allow release of the specimen, and a compartment for expulsion of skin glue, or another substance, configured to succinctly close the incision site to close the wound. This configuration allows punch biopsies to be performed efficiently with reduced technical skill, number of surgical instruments, and time required for the procedure.

Medical devices and methods for endoscopic medical procedures, such as closing a wound or otherwise treating tissue, are described herein. The medical device may include a tube having a distal end and a balloon at the distal end. The balloon may include a collapsed configuration and an expanded configuration. The tube may include an inflation lumen and a suction lumen. The balloon may include an inner layer, an outer layer, a first volume, a second volume, and one or more supports positioned within the second volume. The outer layer may surround the inner layer and may define a plurality of pores through the outer layer. The first volume may be defined within the inner layer and is in fluid communication with the inflation lumen. The second volume may be defined between the inner layer and the outer layer and is in fluid communication with the suction lumen.

The invention relates to a disposable manual precise negative pressure drainage wound protecting device for sealing wounds. The device comprises a high negative pressure bottle body, an air suction cylinder, a ventilation pipe, a connecting pipe, a drainage pipe assembly and drainage dressing. A negative pressure pipe and a hose are arranged at the top end of the high negative pressure bottle body, a negative pressure meter is arranged on the negative pressure pipe, the negative pressure pipe is connected with one end of a breather pipe, and the other end of the breather pipe is connected with an air pump; an air exhaust one-way valve and an air exhaust one-way valve are arranged on the breather pipe; the drainage dressing comprises a water absorption sponge and a PU film, and the connecting tube is connected with one end of the drainage tube assembly; the other end of the drainage tube assembly penetrates through the PU film and then is arranged in the water absorption sponge. By the adoption of the structure, the negative pressure drainage device does not need to depend on concentrated negative pressure equipment, is wide in application scene, can manually and accurately control the negative pressure value, is good in sealing performance, solves the problem that the application scene of an existing product is limited, ensures that negative pressure drainage of a patient is not interrupted in the transferring and dressing changing process, guarantees treatment continuity, and has wide clinical application prospects.

The utility model discloses a visual negative pressure drainage dressing and a flushing negative pressure suction device, the visual negative pressure drainage dressing comprises a self-adhesive medical film and a foam drainage material, the self-adhesive medical film and the foam drainage material are of an integrated structure, and the visual medical dressing is provided with a drainage window and an observation window; when the visual medical dressing is used, after the protective paper is torn off and removed, the visual medical dressing is pasted to normal skin around a wound to form a closed wound treatment cavity; the foam drainage material is arranged in the mounting cavity, and a first through hole and a second through hole are formed in the foam drainage material; the flushing pipe penetrates through the drainage window and then is arranged at the bottom of the foam drainage material; and the negative pressure suction tube is arranged on the flushing tube in a sleeving manner. Due to the integrated design, the medical negative pressure drainage dressing is transparent and visual, medical staff can conveniently observe changes of a wound surface at any time, and the negative pressure drainage dressing can be used for rapidly installing and sealing the wound surface and rapidly installing and washing a drainage tube.

Novel compositions and systems for closure of wounds with antimicrobial effectiveness are disclosed. The compositions provide devices of improved flexibility and elasticity and are readily applied to wound sites or over wound closure devices. The present invention is also directed to a novel platinum catalyst for use in such compositions. The catalyst provides for rapid curing on topical surfaces such as skin and bonds to such surfaces in about 2 -5 minutes.

The present application relates to the technical field of medical devices, in particular to a medical first-aid hemostatic plug and a production device and production process thereof. The first-aid hemostatic plug comprises a circular table-shaped body, an elastic buffer cavity and an elastic cover. The first-aid hemostatic plug prepared by the production device and production process has a surface of all medical non-woven fabrics coated with chitosan, which can adsorb contaminated blood to close the wound, achieve hemostasis and antibiosis at the same time. The surface of the first-aid hemostatic plug is completely wrapped with an elastic cover, which provides an expansion space for the internal medical non-woven fabric, avoids adhesion to the wound and prevents the internal multiple medical non-woven fabrics from being separated during use. The structure design is especially suitable for rapid hemostasis of bleeding in hole wounds, sinus wounds and similar wound types. The first-aid hemostatic plug is convenient and fast to use. The production device and production process can realize precise, stable, orderly and rapid production of the first-aid hemostatic plug.

A system is provided for closing a wound. The system provides a substrate that attaches to a tissue. For instance, the substrate may be a mesh. The substrate supports a zipper. The zipper may be opened to provide access to the tissue for access to a wound, or for forming an incision. The zipper may be closed to compress the tissue adjacent to the wound or incision in order to close the wound or incision for healing.

Disclosed is an artificial scaffold material for a wound applied to the wound in order to cure the wound while suppressing scarring in a living body. The scaffold material includes: a biomaterial having a property to which progenitor cells of myofibroblasts of the living body adhere; and an anti-fibrotic agent contained and retained in the biomaterial, the anti-fibrotic agent being gradually released from the biomaterial as the biomaterial dissolves in the living body. The wound includes at least one of an open wound and a closed wound in the living body. The anti-fibrotic agent has a low molecular weight, and inhibits the progenitor cells from differentiating into the myofibroblasts in the living body. The scaffold material for a wound is placed on a target surface of at least one of the wound surface of the open wound, the wound surface of the closed wound, and a portion of the surface of the living body where the closed wound is exposed, thereby allowing the anti-fibrotic agent to be locally administered to the target surface.

The wound closure device comprises a base, a transmission assembly and bonding pieces, the transmission assembly is arranged on the base and comprises a plurality of moving pieces capable of synchronously moving relative to the base, the bonding pieces are multiple and fixedly connected with the moving pieces in a one-to-one correspondence mode, the bonding pieces can be bonded to a wound area of the percutaneous puncture operation, and the bonding pieces are fixedly connected with the moving pieces in a one-to-one correspondence mode. The transmission assembly is driven to drive all the moving parts to synchronously move towards the center of the wound area and drive the bonding parts to close the wound. By means of the device, radial wounds after percutaneous puncture surgery can be closed accurately and effectively, traditional complex suturing skills are not needed, the operation process is greatly simplified, and working efficiency is improved.

The application discloses a kind of self-adhesive drug carrier temperature-sensitive hydrogel dressings, it includes temperature-sensitive matrix and imine polymer.The present application poloxamer F127 is used as temperature-sensitive matrix, and imine polymer formed by chitooligosaccharide and dopamine is used as self-adhesion component and also is the bacteriostatic oxygen molecule controlled-release system of buffer-controlled carrier, forms unique buffer-controlled release oxygen system, and a kind of composite hydrogel dressings with self-adhesion, self-healing, antibacterial, controlled release and other multiple specific functions is constructed, can be used for daily disinfection, wound healing, scar repair, the treatment of diabetic foot skin ulcer, acne and acne and the treatment of herpes skin damage;The product of the present application has good antibacterial property, water solubility, biological safety, biocompatibility, can be injected or processed into shape, can be used for rapid hemostasis, can partially replace suture, fast close wound.

Some tissue adhesives include a solid having bio-absorbable fibers and at least one of nano-spheres, micro-spheres, nano-tubules, or micro-tubules. A first layer of the solid has a positive Poisson's ratio and a second layer of the solid has a negative Poisson's ratio. In some cases, the second layer has been transformed from a positive Poisson's ratio material to a negative Poisson's ratio material. In some cases, an entire face of the first layer is in contact with an entire face of the second layer. In some cases, the second layer includes one or more pores, at least a portion of the one or more pores containing a secretion from one or more barnacles. In some cases, the secretion is configured to adhere the tissue adhesive to one or more layers of tissue to at least partially close a wound.

Medical devices and methods for endoscopic medical procedures, such as closing a wound or otherwise treating tissue, are described herein. The medical device may include a tube having a distal end and a balloon at the distal end. The balloon may include a collapsed configuration and an expanded configuration. The tube may include an inflation lumen and a suction lumen. The balloon may include an inner layer, an outer layer, a first volume, a second volume, and one or more supports positioned within the second volume. The outer layer may surround the inner layer and may define a plurality of pores through the outer layer. The first volume may be defined within the inner layer and is in fluid communication with the inflation lumen. The second volume may be defined between the inner layer and the outer layer and is in fluid communication with the suction lumen.

Disclosed is a two-component medical device useful for closing a wound or incision. The two-component medical device includes first and second adhesive-backed anchoring members having wound edges. A first and a second release liner protect the first adhesive-backed surface of the first adhesive-backed anchoring member. A first and a second release liner also protects the second adhesive-backed anchoring member. Each of the first and second release liners include a tab portion for removal of the associated first or second release liner.

To provide a scar management product effective for reducing and / or preventing dermal scarring, and to provide a process of manufacture thereof.SOLUTION: Provided is a scar management product for reducing and / or preventing dermal scarring at a closed wound site, the scar management product comprises a skin-contacting layer having a skin-contacting surface, the skin-contacting layer having a first side and a second side, the first side of the skin-contacting layer comprising: the skin-contacting layer including the skin-contacting surface of the skin-contacting layer; and pirfenidone incorporated into the skin-contacting layer, and the skin-contacting layer being a cured silicone material having pirfenidone mixed therein.SELECTED DRAWING: Figure 1

To provide surgical devices and systems for performing wound closure.SOLUTION: For example, a wound closure member is provided with an anchor, a spring member, and a body extending therebetween. The wound closure member is configured to apply an adjustable closure force to tissue to close a wound. Delivery instruments are additionally provided.SELECTED DRAWING: Figure 1

Surgical devices, systems, and methods are provided for performing wound closure. For example, a wound closure member is provided with an anchor, a spring member, and a body extending therebetween. The wound closure member is configured to apply an adjustable closure force to tissue to close a wound. Delivery instruments are additionally provided.

A non-invasive wound closure device that does not use needles, sutures, staples or tissue-adhesives. The device reapproximates the everted edges of a wound of a patient, and has two side strips each containing a customized bandage, that are adhered to either side of the wound that is closed by mating and tying the two tethered side strips via the cord and the rigid slider(s) and the locking mechanism. The device can also be reopened by untying the cord and removing the slider(s), and can be reclosed by repeating the closure process. Each side strip has cross holes, through which the cord tethers, joins and ties the side strips, and has an integral adhesive-bandage layer on the bottom to adhere to the patient's skin. The device may be made in various lengths and be used singly or in segments for straight wounds, or using multiple sliders for curved or dynamic wounds.

The invention relates to a soft tissue adhesive. The soft tissue adhesive comprises an adhesive layer, an anti-adhesion layer and at least one strength degradation regulating layer formed between the adhesive layer and the anti-adhesion layer. During preparation, the bonding layer, the strength degradation regulation and control layer and the anti-adhesion layer are sequentially placed on the PTFE plate, covered with the PTFE plate and pressed and dried, and the soft tissue adhesive is prepared. The bonding layer is used for bonding and sealing the wound and plays a role in closing the wound surface; the anti-adhesion layer is used for isolating wound tissues and avoiding tissue adhesion; the strength degradation regulation and control layer can be regulated and controlled according to the requirements of the to-be-repaired tissue on the strength and the degradation period. The design of the three-layer structure solves the problems that adhesion is easily caused and the degradation rate is not matched with the repair period in the existing adhesive repair process. Meanwhile, an electron-rich active group is innovatively introduced, and through the covalent bonding principle, the tissue bonding and repairing effects are better considered. The adhesive is widely applied to medical adhesives.

Illumination devices and methods for impinging light on tissue and, more particularly, illumination devices and related methods for wound healing are disclosed. Illumination devices and related methods involve phototherapy alone or with other systems (e.g., vacuum-assisted wound closure) to avoid delayed wound healing and / or achieve successful wound closure in reduced time. Accordingly, aspects of the present disclosure describe administering light in the presence of vacuum pressure to a wound site. Providing a negative pressure with a vacuum may reduce fluid build-up and / or infection while increasing localized blood flow to promote healing. Administering phototherapy of light to the wound concurrently with vacuum pressure may further enhance the effects of negative pressure and / or elicit additional biological effects for enhanced wound healing.

The utility model discloses an emergency chest open injury sterile fixing band, which relates to the technical field of medical instruments, and comprises a strap and a sterile thick dressing, one end of the strap is fixedly provided with a connecting band, one side of the end part of the connecting band is provided with a first hook-and-loop fastener, the other end of the strap is provided with an adjusting band, and the adjusting band is provided with a second hook-and-loop fastener. A first hook-and-loop fastener is fixed to one side of the end of the adjusting belt, a limiting strip is arranged at the lower end of one side of the strap, and a limiting belt is fixed to the upper end of one side of the strap. According to the emergency chest open injury sterile fixing band, through the arrangement of the fixing plate and the sterile thick dressing, in the process of first aid of a patient, the connecting band and the adjusting band are connected through the first hook-and-loop fastener and the first hook-and-loop fastener, and therefore the fixing band can be conveniently and rapidly bound to the body of the patient; at the moment, an open wound is changed into a closed wound by matching with a sterile thick dressing, and meanwhile, the overall strength of the fixing band is enhanced by utilizing the fixing plate, so that the rib fracture is externally fixed.

The invention discloses a visual negative pressure drainage dressing, a flushing and suction device and a using method, the visual negative pressure drainage dressing comprises a self-adhesive medical film and a foam drainage material which are of an integrated structure, and the visual medical dressing is provided with a drainage window and an observation window; when the visual medical dressing is used, after the protective paper is torn off and removed, the visual medical dressing is pasted to normal skin around a wound to form a closed wound treatment cavity; the foam drainage material is arranged in the mounting cavity, and a first through hole and a second through hole are formed in the foam drainage material; the flushing pipe penetrates through the drainage window and then is arranged at the bottom of the foam drainage material; and the negative pressure suction tube is arranged on the flushing tube in a sleeving manner. According to the integrated design, the medical negative pressure drainage dressing is transparent and visualized, medical staff can conveniently observe changes of a wound surface at any time, and the negative pressure drainage dressing can be used for rapidly installing a sealed wound surface and rapidly installing a flushing drainage tube.

The utility model relates to medical apparatus and instruments technical field, especially a kind of medical first-aid hemostatic plug. Including a round table body, the round table body is compressed by non-woven fabric, the surface of non-woven fabric is coated with chitosan;A elastic buffer cavity, the bottom center of the round table body is recessed to form the elastic buffer cavity, the structure can adsorb dirty blood and close wound, and hemostasis and antibiosis can be realized simultaneously, by the small diameter end of the structure towards wound and plug into the inner wall deep, first, through the density of upper area of smaller density, realize blood absorption, hemostasis disinfection and the expansion positioning of middle part of wound inner wall, then, through the density of top area of larger density, realize the adsorption and hemostasis disinfection of bleeding in deep part of wound, and through the density of lower area of larger density, realize the adsorption and hemostasis disinfection of bleeding outside wound inner wall, and then, the zoned rapid hemostasis treatment of wound can be realized, especially suitable for the hemostasis of hole wound, sinus wound and trauma type bleeding, convenient and fast to use.

The present invention discloses a medical stapler designed for efficient wound closure, utilizing a four-legged staple assembly. The staple assembly comprises four symmetrically positioned legs—two longer or standard legs for engaging deeper tissue layers and two shorter legs for securing superficial skin layers—each configured to penetrate tissue at an angle of approximately 90 degrees ±15 degrees relative to the tissue surface. The staple is formed as a continuous, one-piece biocompatible metallic structure with a central apex that uniformly distributes compression forces across the wound site. This design enables simultaneous closure of multiple tissue depths in a single deployment, enhancing surgical efficiency. The symmetrical leg spacing ensures even tissue engagement, while the configuration resists rotational movement within tissue, improving post-deployment stability. Additionally, the design minimizes the risk of skin overlap, puckering, and tissue misalignment, supporting a more aesthetically pleasing wound closure.

The present disclosure pertains to medical devices. More particularly, the present disclosure pertains to devices, systems, and methods for closing a wound, such as a tissue defect resulting from an endoscopic mucosal resection or endoscopic submucosal dissection procedure. In one example, a device for closing a wound may include a closure element having a delivery configuration and a deployed configuration, the closure element configured to be disposed about an endcap of an endoscope in a delivery configuration. A release filament may have a distal end releasably coupled to the closure element and a proximal end extendable within the endcap. The closure element may be configured to substantially close about the wound in the deployed configuration.

The present invention relates to a self-resetting urethral valve device driven by magnetic fluid, comprising a housing, a driving assembly, and a clamping member. The driving assembly is installed in the housing and connected to the clamping member. The clamping member is installed in the housing and can reciprocate along a fixed direction. The driving assembly adopts a magnetic fluid portion and a soft magnet, and utilizes the deformation effect of the magnetic fluid under the action of a magnetic field to control the opening and closing of the urethra. The control is convenient and efficient. There is no need to leave an unclosed wound on the outside of the body surface that requires permanent maintenance, thereby preventing secondary infection and inflammation. The urethra does not have a hole for installing the device, so it will not cause infection of the wound muscle tissue. The various components of the device do not come into contact with urine, so it will not cause urinary system infection and complications. A soft non-metallic material gasket contacts the outer wall of the urethra, so it will not cause mechanical damage to the organ. The sealing is achieved by closing the inner wall of the urethra tube, which conforms to the physiological structure characteristics and will not cause urine leakage.

A device and method for treatment of post-operative surgical site wounds. Device includes an elongated hollow shaft that spans from the wound closure to the deep wound area, the internal end abutting a wound dressing and the external end connecting to a device that can provide negative-pressure suction and irrigation. Device providing one or more of irrigation, suction, and / or local antibiotic delivery to deep infections through a closed-wound. The method for removal includes narrowing a removal element relative to the long axis, collapsing the wound dressing; removing the wound dressing through the elongated shaft; and removing the device through a closed wound, avoiding a second removal surgery.

The compound formulations for the treatment and administration of drugs in open wounds, closed wounds and skin graft donor site wounds consists of the following: bupivacaine, tranexamic acid, adrenaline and hydrogel in the form of solution, hydrogel amorphous or hydrogel sheets. The hydrogel form consists of main ingredient drugs combined with one or more of hydrogel-forming polymers selected from a group consisting of one or more combinations of carboxymethyl cellulose, gelatin and pectin. The method for treating wounds in patients consists of applying the compound formula to the wound. The wounds are selected from a group consisting of surgical wounds, injury wounds, chronic and burn wounds. The compound formula is applied to wounds in the form of solution, hydrogel amorphous or hydrogel sheets.

Medical devices including release liners and release liner tape and / or holding indicia, and methods of closing a wound or incision using the medical devices.