Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
  • A61M5/142—Pressure infusion, e.g. using pumps

Definitions

• the object of the utility model is a pre-filled infusion set, which consists of an infusion bag (an infusion device under the influence of excessive pressure) and also a pre-filled infusion system.
• the device can be perfectly used for emergency ambulance in the military and others
• US3734351 under the name PRESS FOR A DEFORMABLE BAG, in which one plate rotates around an axis compared to another, the compression force is provided by a screw and a coil spring.
• infusion devices that work under pressure according to the pneumatic principle due to a container with air placed between flexible or rigid elements, which, in devices with a fairly simple construction, operate using a manual spherical pump, or due to the energy of a gas cylinder under high by distance. It is such an apparatus that is described in U.S. Pat. No. 4,407,716 (A) under the name Apparatus for the induced infusion of a liquid from a flexible liquid bag.
• the disadvantage of the drip chamber is that it can only be used if the system is in an upright position. Under normal medical conditions, this is not difficult - the infusion bag is hung on the infusion stand, or it is held by the carer, so the drip chamber is in
• Our goal is to create a greatly simplified use infusion set that can be easily connected even in night light.
• the infusion bag can be fixed to the patient’s body, or in any other way. Further observations showed that if the system is pre-connected and filled with an infusion solution, you can skip
• Coupled should be fluorescently labeled for more convenient use at night.
• the proposed utility model is a pre-filled infusion set consisting of an infusion bag, a wire, a flow regulator, at least one drug dispenser, a check valve, and there is also a flow indicator on the wire.
• the feed indicator has an inlet and outlet connector, a turbine housing, a turbine, and a cover.
• the turbine axis is freely mounted and secured with the help of the bearing holes of the turbine housing and the cover, the turbine axis is located near the supply line, which connects the input and output connectors.
• the turbine housing and / or cover are at least partially made of transparent material.
• a wire (tube) has at least one
• the infusion bag is located in the pocket under pressure, which surrounds the bag on four sides. In the pocket or between the pocket and the infusion bag
• a switching valve and a pump are connected.
• a layer of foam with memory on which is placed a self-adhesive layer with a shipboard protective film.
• the tube is pre-filled with infusion solution, and connected to the infusion bag with a plug or
• the pocket and the pneumatic cuff are partially or completely made of transparent material; the pocket can be made of mesh material.
• a pocket variant with a reinforcing sheet is also possible; a memory foam is placed on this element.
• a kit option is also possible in which a fluid supply regulator, a medicine dispenser, a check valve, a turbine, a changeover valve, and at least a portion of the tube are made of or coated with a fluorescent material.
• Another kit option is equipped with a safety valve in the air tube, the safety valve can also be equipped with an integrated piston pressure sensor.
• a gas pressure cartridge can be connected to the diverter valve.
• the plug-in connector is a tubular element with a screw or bayonet connector. To one end of the plug connector tube
• the tube is connected, at the other end there is a screw or bayonet connector, to which the connector of the infusion bag or the corresponding element of the bayonet connector is connected.
• the bottom perforation which closes the passage between the tube and connector, at least part of this perforation in the connected state is parallel to the bottom of the connector and placed opposite it.
• the wall connecting the lower perforation to the internal shield of the connector with a plug is flexible, preferably in the form of an accordion.
• a vertical pin with a hole is attached to the wall of the connector with a plug.
• the stud axis is parallel to the axis of the screw or bayonet connector.
• Fig. 1 view of the infusion set in space
• Fig. 2 view of the fluid flow indicator in space
• Fig. 3 view of the components of the fluid flow indicator in space
• Fig. 4 front view of the pocket, without pneumatic cuff
• Fig. 5 side view, sectional view of a pocket and related parts in an inflated state
• Fig. 6 view of the bayonet connector with a plug in space
• Fig. 7 side view of the bayonet connector with a plug, in partial section.
• fig. 1 shows a version of the infusion set in which the tube 2 is connected inseparably with the connector 25 of the infusion bag 1.
• the kit consists of an infusion bag 1, as well as a system in which the infusion bag 1 is connected to the pocket 18, namely, the pneumatic cuff 3 located therein.
• the pneumatic cuff 3 is connected via an air tube 7 to the switching valve 6 and pump 5.
• the pump 5 is a closed vessel with flexible walls, preferably the size of a palm, which can be squeezed by hand, as is the case with a device for measuring blood pressure.
• the switching valve 6 has at least three positions:
• a safety valve or piston for measuring pressure (opening at a pressure of 300-325 Hgmm) combined with a safety valve should be integrated into the switching valve 6 or as a separate element in the air tube 7.
• Such pistons are commercially available, for example W
• Tube 2 should preferably contain a fluid supply sensor 8, a fluid supply regulator 4, a drug dispenser port 23, and a check valve 10, which also provides the standard ability to connect a cannula 22 and is one of the devices for separating the solution contained in the system.
• the cannula is already shown in connected form, but one of the steps for preparing the system is to connect the cannula 22 to the check valve 10.
• the check valve 10 has a removable cap. This cap is threaded and protects against
• a closing valve with two possible positions can be integrated in the tube 2.
• the system shown in fig. 1 is designed for use under normal conditions, but if necessary, on the tube 2, you can use several additional elements from the above.
• Part of the tube 2 is a spiral 17, due to which a rather large length of the tube 2 can be placed in a relatively small size and with great flexibility. Thanks to the spiral 17, the hanging elements can be kept to a minimum, which is extremely important during transportation.
• a corrugated tube can also be used.
• the fluid supply regulator 4 in this case is an inclined sliding type regulator, but it can also be replaced by another type of regulator.
• the stream indicator 8 in a simplified form inherits the structure of flow meters with a rotary blade.
• the liquid enters from the input connector 11 and leaves through the original connector 12, between which flows, affecting the turbine housing 13, thereby rotating the turbine 24 located in the housing 13, thanks
• the turbine 24 consists of at least two blades mounted on the axis 15 and the axis 15 itself.
• Figure 3 also shows a flow indicator 8, this time in section.
• the cover 14 (if it is not made by 3D printing technology) is installed separately, in the corresponding socket on the turbine housing 13.
• the cover 14 must be at least partially transparent, the turbine housing 13 itself can also be completely transparent, and in the case of a variant for night use, the turbine 24 is fluorescent, or there are fluorescent designations on it.
• a minimum clearance should be left between the side of the turbine 24 and the cover 14, so that in the case of an opaque liquid it is also possible to observe the flow.
• especially important details switching valve 6, fluid supply regulator 4, drug dispenser 23, cannula 22,
• check valve 10 should be highlighted with fluorescent designations. Such a designation can also be placed on the tube 2, for example, a strip along the tube.
• Pocket 18 surrounds the infusion bag 1 on at least four sides.
• one of the sides of the pocket 18 is reinforced with a fixing sheet 9.
• the fixing sheet 9 firstly, helps to avoid wrinkling of the infusion bag 1 when the fluid is supplied, thereby supplying without residues and, secondly, due to its less embossed the surface and the foam layer with a memory 19 of a thickness of 7-10 mm., as well as a self-adhesive layer 20, covered with a protective film 21, can be easily glued to uneven surfaces on the patient's body.
• Pocket 18 is recommended to be made of transparent or mesh material. Not the pneumatic cuff 3 shown in this figure fills
• the figure shows that this means an environment of more than 180 degrees.
• a larger airspace minimizes changes in the volume of the pneumatic cuff 3 when fluid is supplied from the infusion bag 1, thereby reducing the need for additional pumping. So, in the case of increasing the size of the pocket 18 by increasing the mass, cost and cost of the material, the possibility of less careful monitoring of pressure is provided, or completely eliminates the need for observation.
• a sectional view shows a pneumatic cuff 3 located between the pocket 18 and the infusion bag 1.
• free parts are only at the ends
• the pneumatic cuff 3 which partially protrude from under the pocket 18.
• the pneumatic cuff 3 is preferably made of rubber or other flexible material, but like pocket 18, part or all of the cuff can be transparent, for convenient monitoring of the condition of the infusion bag 1.
• FIG. 6 and 7 show a variant with a bayonet lock of the connector with a plug 26 between the connector 25 of the infusion bag 1 and the tube 2.
• the connector with the plug 26 is a tubular element with a tube 2 connected to one end and a lead thread (4 pcs.)
• the bayonet connector on the shield 33, to which the protrusions 27 of the connector 25 are connected.
• the bayonet connector has two possible positions. The first position is shown in fig. 6 transport position, when the connector with the plug 26 is located at a distance from the connector 25 and there is no fluid supply between the tube 2 and the infusion bag 1. It is desirable that this position was fixed by the first branch of the lead thread 28 near the edge. When connecting, the connector with plug 26 should be rotated counterclockwise, as a result of which the axis movement becomes free, and then at the end of the process
• connection turning clockwise the protrusions 27 are rotated into the internal branch of the lead thread 28, thereby stabilizing connection.
• a threaded connection a similar process occurs, but only with a circular motion, in which the thread on the connectors 26 and 25 together creates a fluid flow. In the transport position, the thread of these two elements also contacts, but at a greater distance. In the case of a threaded version of the kit, the thread is on the connector 25 and the shield 33.
• the section shows the recommended design of the bayonet connector with a plug 26.
• the plug with a plug 26 has a perforated bottom 32 that blocks the passage between the tube 2 and connector 25, at least part of this bottom in the connected state is parallel and placed opposite the bottom of the connector 29.
• Perforated wall the bottom connecting with the internal shield of the connector with a plug in the best case should be made in the form of an accordion 31, since this form is able to withstand significantly movement along the axis, while creating a minimum of voltage.
• An alternative to this may be a larger diameter membrane, placed radially, but due to this, the size of the connector with a plug 26 will increase too.
• the plug connector is shown in the transport position.
• the spikes 27 change their position, as well as the connector 25 and the bottom of the connector 29.
• the bottom of the connector 29 lies on the perforated bottom 32, it begins to put pressure on the accordion 31, which subsequently contracts.
• the spike 30 first reaches the perforated bottom 32, and then to the bottom of the connector 29, and punctures them.
• the displacement (the length of the axial part of the slots 28) should be such that the hole on the end or side of the stud 30 fully fits into the space of the connector 29.
• liquid may be released between the connectors 29 and 32, thereby preventing air from entering the tube 2.
• Such a connection at the same time provides protection for the connected surfaces (especially the bottom of the connector 29 and the perforated bottom 32), as well as the rapid replacement of the infusion bag 1, without the need to get rid of air.
• next infusion bag can be connected instead of an empty bag, there is no need to rid the system of air. Thanks
• the design of the check valve and the kit does not need to be rid of air even with a completely empty bag, so replacement is quick enough. Thanks to the check valve there is a possibility
• the check valve allows the flow of fluid exclusively into the veins of the patient, but not in the opposite direction, therefore, if the fluid runs out in the infusion bag or the flow is interrupted, blood cannot flow into
• the infusion solution can be injected into the patient’s body without observation and at a faster rate than in the case of gravity infusion. Another advantage is that this infusion system does not have a drip chamber, which, with excessive pressure, could cause an air embolism.
• the device recommended by us is suitable for achieving our goals, as the technology becomes much simpler and faster, and it decreases the need for observation, and the device itself can be used in night and military conditions.

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• Health & Medical Sciences (AREA)
• Vascular Medicine (AREA)
• Engineering & Computer Science (AREA)
• Anesthesiology (AREA)
• Biomedical Technology (AREA)
• Heart & Thoracic Surgery (AREA)
• Hematology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Infusion, Injection, And Reservoir Apparatuses (AREA)

Applications Claiming Priority (2)

Publications (1)

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Cited By (1)

Citations (4)

• 2015
  • 2015-12-21 HU HUU1500246U patent/HU4926U/hu unknown
• 2016
  • 2016-05-26 WO PCT/HU2016/000034 patent/WO2017109522A1/ru active Application Filing

Patent Citations (4)

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