RU2019194C1 - Device for administering drugs - Google Patents

Abstract

FIELD: medical engineering. SUBSTANCE: device for administering drugs includes hollow cylinder enclosed in housing, two intersecting passages one of which communicates with tip and other with reservoir for mixture. Externally, device carries clamp with roller, replaceable tips, and reservoir provided with auxiliary piston, screw-on cover and needle. Disclosed device may find numerous applications in irrigation therapy of diseases of upper respiratory tracts and employed for administering medicinal preparations in other cavities of patient's body. EFFECT: more sophisticated design. 2 cl, 2 dwg

Description

 The invention relates to medicine, and more specifically to radiation therapy of malignant neoplasms, and can be used for remote gamotherapy of lung cancer. In addition, it can be used to treat tumors of the abdominal organs, as well as for irrigation therapy of diseases of the upper respiratory tract and for the introduction of drugs into other cavities of the patient's body.

 A device for administering powdered medications is known, selected as an analogue and containing a tip with a hole on the top for introducing the drug into the nose or other openings of the body, a cylinder fitted tightly to it, containing a reservoir for the capsule with the drug, an air channel and an anti-return valve the release of the drug. Outside the tip and the area of its connection with the cylinder is closed by a cap with a needle for puncture of the capsule. The cylinder is connected to a cylinder for pumping air into the device. The spraying of powdered drugs does not allow to achieve a sufficient concentration of drugs in the tumor in conditions of impaired bronchial patency, the design features of the device do not allow changing the mode of administration of drugs, and also do not provide for changing the tip.

 A device selected by the prototype is known: a T-shaped connecting element for connecting a syringe pump to an injector and a reservoir for storing a liquid medicament introduced into the body. A connecting element for connecting the pump with the injector and the tank, the volume of which is greater than the pump capacity, contains a housing with three through channels connected to each other. The channels connected to the injector and to the medication tank are equipped with check valves directing the fluid flow in one direction, as well as nozzles extending the through channels outward to connect the injectors and the medication reservoir. The connecting element is characterized in that the discharge channel extends towards the connecting channel of the syringe, and the suction channel extends transversely. Non-return valves, with the exception of the possibility of leakage, are installed in the outlet and suction channels at the flange edges with successively inserted connecting parts mounted on the inner walls of the channels.

 The known device provides a supply of injected drug, the direction of fluid flow in one direction, eliminates the leakage of drugs and, if necessary, suction, however, uniform injection of drugs on the pathological surface does not ensure the delivery of drugs to the tumor in patients with impaired patency of the bronchi, the structural complexity of the device, the multiplicity parts do not provide a high-quality procedure, the duration of the infusion increases.

 The aim of the invention is to simplify the design.

 This goal is achieved in that the device for the introduction of medicinal substances contains a housing with a handle and a hollow cylinder, which houses a spring-loaded piston, two intersecting channels, one of which is connected to the tip at the outlet, and the other to the reservoir for the drug mixture through valves providing directional movement of the fluid, and the trigger, and the cylinder is placed between the channels on the line of intersection, the channels at the outlet are connected respectively to the tip and the tank by means of GOVERNMENTAL nuts, wherein the drug reservoir mixture is placed in the handle, and the handle is provided with a roller shutter associated with a spring-loaded piston, a reservoir for the drug is provided with an additional piston mixture.

 The radiosensitizing mixture is served in discrete portions, which facilitates the penetration of drugs into the bronchi with impaired patency. The design of the device provides the introduction of the drug mixture to a large number of patients, without spending time recharging the device and sterilizing it after each injection of the mixture due to the stock of drugs in the tank and the use of interchangeable tips. Using the device allows you to enhance the resorption of the tumor, even in cases where radiosensitizers can not be brought to the tumor either through the bloodstream or in the form of an aerosol.

 In FIG. 1, 2 presents the proposed device.

 A device for introducing drugs contains a housing 1 with a hollow cylinder 2, in which a piston 3 is located, spring-loaded with a coil spring 10, valves 5, a sleeve 6, a union nut 7 with a tip 8, channels 9 and 4, a roller 11, a bracket 12, a container 13 for the drug mixture, pipe 14, reservoir cover 15, piston 16, cover 17 with needle 18.

 The elements of the device are in the following relationship: in the housing 1 there is a hollow cylinder 2, in which there is a piston 3, spring-loaded with a coil spring 10, two intersecting channels 9 and 4, one of which is connected to the tip 8 at the outlet, and the other 9 to the reservoir for of the drug mixture 13 by means of valves 5 providing the direction of fluid movement, the hollow cylinder 2 is placed between the channels on the line of their intersection, the channels 9 and 4 at the outlet are connected respectively to the tip 8 and to the reservoir for the drug mixture 13 by ohm union nuts 7. The reservoir for the medicinal mixture is located in the handle. The valves 5 provide the direction of fluid flow from the reservoir 13 to the tip 8 during the reciprocating movement of the piston 3, which is provided by the pressure of the roller 11, mounted on the bracket 12. To fill the container consisting of a housing and a cover 15 with drugs, the piston 16 and the cover 17 with a needle 18. The trigger handle is equipped with a roller associated with a spring-loaded piston 3, and the reservoir for the drug mixture is equipped with an additional piston 16.

 The device operates as follows. First, a lid 17 with a needle 18 is screwed onto the tank body 13 (see FIG. 2) and the piston 16 is used to fill the tank with a solution of liquid medicinal substances. Then the cover 17 with the needle 18 is removed and the tank 13 is attached to the housing 1. 2-3 reciprocating movements of the piston 3 are carried out by pressing the bracket 12, the channel 9 and the tip 8 are filled with the solution. After that, the device is ready for operation. The tip is inserted into the patient’s body cavity and, by pressing the bracket 12, the drug solution is poured in discrete portions.

Claims (2)

 1. DEVICE FOR ADMINISTRATION OF MEDICINES, comprising a housing with a handle and a hollow cylinder, in which a spring-loaded piston is placed, two intersecting channels, one of which is connected to the tip at the outlet, and the other to the drug mixture reservoir through valves providing directional fluid movement , and a trigger, characterized in that, in order to simplify the design, a hollow cylinder is placed between the channels along the line of their intersection, the channels at the outlet are connected respectively to the tip and the reservoir by means of union nuts, wherein the reservoir for the drug mixture is placed in the handle, and the trigger handle is provided with a roller associated with a spring-loaded piston.  2. The device according to claim 1, characterized in that the reservoir for the medicinal mixture is equipped with an additional piston.

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