RU2112485C1 - Apparatus for manufacture of medical dressing - Google Patents

Abstract

FIELD: medical equipment, in particular, manufacture of surgical dressing for treatment of open wounds and thermal injuries. SUBSTANCE: apparatus has unwinding and impregnating module and packaging module. Unwinding and impregnating module has frame carrying fabric unwinding unit, fabric impregnating unit, impregnated fabric drying unit, impregnated fabric cutting and winding unit. Packaging module has holders for gauze and packaging material rolls and mechanism for cutting gauze into napkins, mechanism for longitudinal heat-sealing of pack, transverse heat-sealing mechanism and pack cutting off mechanism. All mechanisms and gauze and packaging material holders are fixed on frame. Gauze cutting mechanism is provided with conveyor. EFFECT: increased efficiency, convenient storage and usage of apparatus. 7 dwg

Description

 The invention relates to medical equipment and can be used for the manufacture of napkins used as dressings in the treatment of open wounds and burns.

 A device for the manufacture of medical napkins containing nodes cutting and impregnation of the material (US, N 5256477, CL B 32 B 5/16, 1993).

 A device for the manufacture of surgical tampons containing the site of unwinding the canvas, the site of impregnation and the site of winding the impregnated fabric (US, N 5041103, CL A 61 F 13/15, 1991).

 The known device for the manufacture of surgical tampons, adopted as a prototype, has several disadvantages, namely, that the manufacturing process is not automated enough, which, in turn, entails low productivity, inconvenience of storing the finished material in rolls.

 The technical result achieved by using the proposed invention is to increase productivity, ease of storage and use.

 The specified technical result is achieved by the fact that the installation for the manufacture of medical napkins, comprising a web unwinding unit, a web impregnation unit and an impregnated web winding unit, is equipped with drying and cutting units of the impregnated web and a packaging module including roll holders for the web and packaging material, an impregnated web cutting mechanism on napkins with a conveyor, mechanisms of longitudinal and transverse welding of packaging material and segments of the package.

 Figure 1 shows the module unwinding and impregnation of the canvas (gauze); figure 2 - packaging module, front view; figure 3 is a packaging module, side view; figure 4 - roll holder for gauze (packaging material); figure 5 - cutting mechanism; figure 6 - transverse welding mechanism and segments of the package; figure 7 - random welding mechanism.

 The installation for the manufacture of medical napkins consists of two modules: an unwinding and impregnation module and a packaging module.

 The unwinding and impregnation module comprises a bed 1 on which the unwinding unit 4 of the web is fixed, for example gauze, the impregnating unit 8 of the web, the drying unit 10 of the impregnated web, the cutting unit 14 of the impregnated web, electrical equipment, a control panel 2 and a hopper 3 for web rolls.

 The unwinding unit 4 includes a leveling roller 6 and a leveling mechanism 7.

 The composition of the impregnation unit 8 includes a block of refueling containers 5 and squeezing shafts 9.

 The drying unit 10 includes a fan 11, a block of tubular electric heaters (heating elements) 12 and an exhaust pipe 13.

 The cutting unit 14 includes a web expander 15, a traction shaft 16, a shaft of circular knives 17, a shaper folding bands 18, a bobbin shaft 19 and a spool 20 with a roll.

 The packaging module includes a gauze 22 roll holder fixed to the frame 21, a packaging material roll holder 23, a gauze cutting mechanism 24 according to the size of the napkin, a longitudinal welding mechanism of 25 bags, a transverse welding mechanism and pieces of 26 bags, a conveyor 27, a control panel 28 and a guard 29.

 Roll holders 22, 23 for gauze and packaging material consist of a housing 30, a tension roller 31, a guide roller 32, a brake 33, a packaging material presence sensor 34 and a mark position sensor 35.

 The gauze cutting mechanism 24 for the size of the napkin includes a housing 36, an upper drum 37 with knives, a lower drum 38 with gaskets, pulling conveyor rollers 38 and tension rollers 40.

 The transverse welding mechanism and the segments of the package 26 includes a housing 41, a heater 42, an upper drum with a knife 43, a lower drum with a gasket 44, and welding jaws 45.

 The longitudinal welding mechanism of package 25 includes a heater 42, an electromechanical unit 46, a housing 47, an upper drum 48, welding rollers 49, and a lower drum 50.

 The installation is as follows.

 The gauze roll is loaded into the hopper 3, its end is fed into the unwinding unit 4, placed under the raised cover of the impregnation unit 8, held under the raised cover of the drying unit 10 around the traction shaft 16 of the cutting unit 14 under the raised shaft of the disk knives 17. The filling containers 5 are filled with a solution for impregnation of gauze, for example, with a solution of hyaluronic acid supplied to the impregnation unit 8. The cover of the drying unit 10 is lowered, the shaft of the disk knives 17 is lowered onto the gauze web. In front of the impregnation unit 8, a mark is made with a coloring substance, indicating the beginning of the impregnated web.

 From the control panel 2, the fan 11 and the heating elements 12 are turned on, the web is manually drawn through the gauze cutting mechanism 24, each of the three resulting canvases is fed into the folding band former 18 and stretched until marks appear on the border of the impregnated web. The impregnated part is cut off. The ends of the impregnated canvases are tucked into the clamps of the bobbins 20, dressed on the bobbin shaft 19, and the broach engine is turned on from the control panel 2. From the engine through the gearbox and the V-belt drive system, the rotation is transmitted to the pulling roller of the unwinding unit 4, the squeeze shafts 9 and the traction shaft 16 of the cutting unit 14. The bobbin shaft 19 is rotated through the variator.

 After winding onto the spools 20, a three-layer gauze is mounted on the roll holders for gauze 22 and refueled under the first pair of pulling rollers of the gauze cutting mechanism 24 on gauze (in width). The packaging material from the upper and lower roll holders 23 is filled under the rollers of the longitudinal welding mechanism 25 of the package.

 After turning on the electric drive of the longitudinal welding mechanism 25, the movement of the packaging material and gauze begins. When the label of the packaging material passes through the position sensor 35, the latter generates an impulse by which the electric drive of the gauze cutting mechanism 24 is turned on. The drum 37 with knives makes a half turn and cuts off the napkin.

 The cut napkin is fed by conveyor pulling rollers 39 into the space between the welding rollers 49 between the upper and lower packaging material tapes. After passing through the welding rollers 49 of the longitudinal welding mechanism 25, the napkin is in the sleeve of the packaging material.

 In its further movement, the sleeve passes between the upper drum with the knife 43 and the lower drum with the gasket 44 of the transverse welding mechanism and segments 26 of the package. When the label of the packaging material enters the transverse welding zone, the drums 43 and 44 make a half turn, while the sleeve is clamped by constantly heated knife and gaskets, the finished bag with a napkin is welded and cut off at the same time.

 Next, the package with a napkin arrives on the conveyor.

 Installation allows you to make napkins of various sizes.

Claims (1)

 Installation for the manufacture of medical napkins, comprising a unit for unwinding the web, a unit for impregnating the web and a unit for winding the impregnated web, characterized in that it is equipped with units for drying and cutting the impregnated web and a packaging module including roll holders for the web and packaging material, a mechanism for cutting the impregnated web into napkins with conveyor, mechanisms for longitudinal and transverse welding of packaging material and segments of the package.

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