Abstract: Article exhibiting at least one surface of glass, metal or hydrophobic polymer coated with blood-compatible surface layer, in which the biocompatible surface layer consists of an adsorbed hydrophobized water-soluble polymer. Process for providing said articles by adsorption of hydrophobized water-soluble polymer. Use of such a substrate material coated with said surface layer for manufacture of medical articles having a blood-compatible surface.

Abstract: The invention relates to a surgical instrument for ligation of internal tissues, such as hemorrhoids, in a cavity of the body by means of an elastic cord. The instrument comprises an inner front-cylinder (1) with the elastic cord (2) strained around its front end and a displaceable outer discharge-cylinder (3) arranged on the front-cylinder (1). At displacement the elastic cord (2) is pushed beyond the front-cylinder (1) and ligates the stem of a tissue (12) inserted in the front-cylinder (1). One of the two cylinders (1;3) is connected to a profiled tube (4) and the other cylinder (3;1) is connected to one end of a relatively stiff strip (5), which constitutes the actuating means (6) for the relative displacement of the cylinders. The strip is preferably formed into an actuating loop and the displacement is attained by pressing the actuating loop (6) towards the tube (4).

Abstract: A socket for use in preparing a dental prosthesis and in attaching the prosthesis to pillars attached to the patient's jawbone has a thin-walled tubular extension portion that is long enough to extend entirely through an impression material for the first mold used in preparing the prosthesis and/or through the bridge element of the prosthesis. One or more grooves on the socket enhance retention of the first mold and the bridge element.

Abstract: The invention relates to a probe for treating varicose veins, comprising a flexible plastic tube with a tip portion which can be guided through varicose veins at its front end, the tube being at least as long as the veins to be treated. To enable a sclerosing agent to be injected at desired points along the varicose vein, the invention proposes that the probe should have at least one lateral opening in the region of the tip portion, and that the inner cavity of the tube should form a flow connection from a joining piece at the rear end of the tube to the lateral opening, for injection of sclerosing agent.

Abstract: Surgical aspiration device for use in surgical operations, whereby the aspiration device is intended for use in atraumatic aspiration, tissue aspiration and disection. The surgical aspiration device comprises a handle with an inner tube and an outer tube which extend from the handle and which are arranged concentrically, with an interstice formed between them. Adjacent to the handle is an inlet opening which allows air into said interstice. When a vacuum is applied to the inner tube for aspiration, air passes into the interstice and into the inner tube, whereby the aspirated liquid column is broken and atraumatic aspiration can take place.

Abstract: A device for fixing a dental prosthesis is described, which device as parts thereof comprises a spacing element (1) for anchoring into the jaw-bone of a patient and a socket (7) for fixing into a prosthetic part, whereby the socket will rest on the spacing element via an outer conical supporting surface (5) provided on one of said parts, which supporting surface will bear against an inner conical supporting surface (6) provided in the other of said parts.

Abstract: A dental bridge assembly comprises a bridge component cast from a gold alloy having a melting point not greater than 1050.degree. C. and a plurality of sockets of titanium or a titanium alloy cast in place in the bridge component, secured mechanically to the bridge component and adapted to be fastened to anchor elements attached to the jawbone of a patient.

Abstract: A tool is described, which is intended for screwing into place a threaded prosthetic part (6). The tool comprises a turning bolt (1) which has an elongated cylindrical core (2) having at one end thereof a head (3) for turning the tool, and having at its opposite end a portion (4) first threads (5) for fitting into threads in the prosthetic part, and is characterized in that the core has second threads (11), on a portion (10) thereof between the ends thereof, said second threads having a pitch direction opposite to the pitch direction fo the first threads, and a sleeve (13) arranged around the core, said sleeve having threads engaging said second threads, whereby the sleeve may be screwed into contact with the prosthetic part (6) locking the tool in the prosthetic part.

Abstract: The invention relates to an automatic two-chamber injector for mixing and injecting a medical solution. The injector comprises a barrel (11) having a first end with a receiving portion (15) for an injection needle (17), said portion being sealed prior to use, and a second end with a displaceable plunger (27). The barrel (11) comprises two chambers (29, 30) separated by a migrationproof membrane (28), said membrane (28) being adapted to rupture when the plunger (27) is displaced towards the first end of the barrel (11).The invention also related to a method for mixing and injecting a solution by means of an automatic two-chamber injector and to a cartridge for a two-chamber injector.

Abstract: A continuous output device for liquid or gaseous fluids comprising a rail having channels each opening to a first surface of the rail through a slit sealed by a sealing strip, the fluid being supplied to the channels of the rail, and a coupling having an opening member for locally pushing aside the sealing strip for passing, at activation of the coupling, the fluid to said coupling beyond the sealing strip for further distribution to a using place. The sealing strip comprises a spiral spring covered with a sealing body for sealing against the slit. The revolutions of the spiral spring are inclined so that the torsional properties of the spring are used for pushing aside the sealing strip.

Abstract: The invention relates to a method and a means for preparation of a dental bridge for a dental prosthesis. The dental bridge is modelled by casting in a mould prepared from a casting model. The casting model is built up in the mouth of the patient by modules (3,6) which are joined together into a unit. A module consists of a metal socket (3) on which a cap (6) with a through hole is mounted. The modules are connected to each other preferably by gluing.

Abstract: A method of forming an improved hydrophilic coating by applying on a non-reactive hydrophilic polymer surface layer an osmolality-increasing compound to produce a more stable hydrophilic surface and to produce a more slippery surface in wet condition. The polymer surface layer is treated with a solution having above 2% (weight/volume) of an osmolality increasing compound and then the solvent of the solution is evaporated. Osmolality increasing compounds are nontoxic organic or unorganic salts other than trihalogenids, mono- or di- saccharides or sugar alcohols. Preferred compounds are glucose, sorbitol, sodium chloride, sodium citrate, sodium bensoate, calcium chloride, potassium chloride, potassium iodide, potassium nitrate. The solution of the osmolality increasing compound contains preferably a polymer. Medical articles treated with the solution of osmolality increasing compounds according to the method above also relate to the invention.

Abstract: Implant intended to facilitate attachment of dental prostheses against a jaw-bone (2), including an externally threaded screw-shaped member (1), intended to be attached against a threaded hole taken up in the jaw-bone (2). In difference to previously known types of implants, the screw-shaped member (1) includes a blind hole directed from the jaw-bone (2), the first portion of which is a conically tapering portion (4), which is transformed into an internally threaded hole (3). Since the conical portion (4) adjacent to the end surface of the screw-shaped member (1) preferably is arranged with a diameter smaller than the outside diameter of the end portion, and since a cover screw with a conical head which is substantially enclosed by the conical portion (4) is utilized during the osseointegration process, the jaw-bone (2) can be permitted to enclose and encapsulate this end portion of the screw-shaped member (1) during the osseointegration process.

Abstract: At intermittent self catheterization it is, for a wider use of the method, desirable to enable repeated use of a catheter, preferably a limited number of times. This applies also to surface coated catheters having low friction in wet condition (LoFric.RTM.). For this purpose the invention provides a wetting and storage device for a catheter, which device comprises an elongated carrying strip (1) provided with means for retaining a catheter. The device is characterized in that, along one side of said strip there is arranged a wetting pocket (2) closed at one end thereof in which a liquid (6) may be filled and in which a catheter (7) may be introduced for wetting thereof, and that on said strip there is further arranged at least one sheet (8,9,27) of porous material, under which a catheter may be put in for drying and storage. By providing the device with a number of tablets (5) (e.g.