56 results about "Skin opening" patented technology

An active cannula which does more than merely maintain a passage is usable to create and / or enlarge a passage, to position a scope or instrument, to move or locate tissue, etc. The cannula can vary in size or shape as needed, intraoperatively. Because a cannula of the present invention is expandable, the surgeon can make a relatively small incision, stretch the tissue with the expandable cannula, contract the cannula and remove it, allowing the skin to come back to its unstretched condition. Thus, a smaller incision can be made to fit the same size instrument. The cannulas can assume such a non-circular shape, to fit into a natural skin opening and cause less trauma. The devices can be used to seal off a space, expand an existing space or a potential space for working or visualization, move tissue (for example, to stretch an incision), or protect tissue.

An external fixation assembly includes a plurality of hollow pins that are inserted into a patient's bone. Each pin has an interior bore and a plurality of apertures extending through the pin wall from the bore. The pin may be coupled to a source of vacuum pressure operable to create reduced pressure in the tissue surrounding the pin. A cover is placed around the pin and sealed to provide a fluid-tight enclosure that maintains reduced pressure around the pin. A method for applying external fixation using the fixator pins described above includes the steps of inserting each pin through a skin opening, positioning the pin apertures near selected tissue, covering the skin opening with a sealed enclosure, connecting the pins to a source of vacuum pressure, and activating the source of vacuum pressure to create reduced pressure in the patient's tissue at or near the bone.

Hollow core door apparatus for preventing the build up of pressure in a room having a register through which air flows into the room and a center panel in the door with at least a single opening through the center panel; the door has an inside door skin and an outside door skin, both of which include openings spaced apart from the center panel, and an inside panel and an outside panel disposed in the respective openings in the inside and outside door skins. The inside and outside panels are spaced apart from the center panel within the respective door skin openings, and the spacing within the door skin openings define peripheral openings at least as great as the area of the opening in the center panel and are offset from the opening in the center panel to provide for a non-linear flow of air through the door to prevent the build up of pressure in the room. Several different embodiments are illustrated. An embodiment combining a noxious gas absorbent material with the pressure build up prevention capabilities is also illustrated.

The invention relates to a method for creating a puncture wound for obtaining a sample of a body fluid from a body part in which a skin opening is created at a puncture site in the epidermis in a skin-opening step. Then, in a sample collection step a sample collection puncture is executed by using a puncture element with which the skin opening is deepened with the puncture element, thereby creating a puncture wound for obtaining the sample. The invention also relates to a handheld apparatus for implementing this method.

The invention provides a diaphragm opening stiffened bearing cylinder, which comprises a cylinder body and an end frame. The cylinder comprises a lattice rib and an open skin; The end frame comprisesan upper end frame part and a lower end frame part; A lattice rib is arrange on that inner side of the open skin; An upper end frame part is arrange on that top of the cylinder body; The lower end frame part is arranged at the bottom of the barrel. A circular through hole is arranged in the area corresponding to the rhombus area of the open skin, the skin material without radial support area is removed, and a part of the skin is reserved for lifting the tangential bending rigidity of the mesh rib, and the radial rigidity of the mesh rib stiffened bearing cylinder with the mesh rib with a stripsection is improved. The invention can greatly improve the anti-destabilization ability of the diaphragm opening stiffened bearing cylinder, and has strong universality.

For producing a skin opening for minimally invasive surgery an instrument is employed, comprising a grip (10) and a puncture awl (16). The puncture awl (16) is provided on the distal end of a grip (10), which distal end forms a stop surface (12), which limits the penetration depth of the puncture awl (16).

The invention discloses a multifunctional cabin door ventilation opening device controlled through a cam. The device is provided with a cover plate arranged on a cabin door skin opening, wherein a rocking arm is arranged on the cover plate; a limiting component matched with the rocking arm is arranged at the front end of the rocking arm; the rear end of the rocking arm is fixedly connected to a rotating shaft component; the rotating shaft component is mounted on a supporting lug I and a supporting lug II; a rotating shaft is arranged at one edge on the periphery of the cabin door skin opening; a rocking arm lug I and a rocking arm lug II are respectively arranged at the two ends of the rotating arm component; one end of the rocking arm lug I and one end of the rocking arm lug II are respectively articulated with the two ends of the rotating shaft component; the other end of the rocking arm lug I and the other end of the rocking arm lug II are respectively articulated with the two ends of the rotating shaft; a driving pull rod is further arranged at the rear end of the rocking arm; one end of the driving pull rod is connected with the rear end part of the rocking arm; the other end of the driving pull rod extends to the driving part of the cam. The device realizes physical pressure relief in the condition that a cabin door is not completely closed, meanwhile realizes locking in the air during flight, and provides a low-cost and high-reliability solution for civil aircrafts.