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Device for batching medicinal agents

IPC classes for russian patent Device for batching medicinal agents (RU 2281124):

A61M15 - Inhaling devices

Another patents in same IPC classes:

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Medicament dosage device / 2245169
The medicine portioner has a casing with a cavity for holding of medicine agents with a mouthpiece fastened to it, button and a proportioning mechanism. The dosage mechanism is made in the form of a rod with a proportioning bush concentrically placed on it, made for mutual axial displacement, for adjustment of doses. The rod is made stepped for axial displacement relative to the casing and spring-loaded by a return spring. A spring-loaded piston is installed in the cavity for dosage of the medicine agents. Ports for air supply are made in the casing opposite the mouthpiece. All the ports or part of them are made tangentially with respect to the rod. A swirler and a safety net are installed inside the mouthpiece.

Inhalator dosing device / 2248224
Method involves collecting fine powder on dosing unit surface as elongated doses. Single use dosing unit has several prefabricated dose strips to which access is provided. The dosing member having corresponding opening moves along elongated strip of the dosing unit when introducing drug increasing in this way time interval spent for releasing pharmaceutical composition from the dosing unit into inhalator air flow near the entry. Relative movement of the dosing member is achieved by rotating the dosing unit itself or by moving the dosing member along dosing unit surface.

FIELD: medical engineering.

SUBSTANCE: device comprises unmovable housing provided with space filled with medicinal agent, mouthpiece connected with the housing, push button, and batching mechanism made of stepped rod with batching bushing concentrically mounted on the rod. The rod is mounted for permitting axial movement with respect to the housing that receives the piston with the spring for supplying medicinal agent. The batching bushing is connected with the push button whose side is made of a cylindrical shell that embraces unmovable housing. The spring used for supplying medicinal agent abuts against the inner face of the shell. The spring is used for returning the push button in the initial position The rod is locked against rotation in the bottom section. The unmovable housing is provided with radial openings and ring with the inner groove that defines the space for preparing the mixture of air with the medicinal agent. The scale for control batching is applied on the unmovable housing, and the side of the push button is provided with port for visualizing the scale for control of batch. The mouthpiece is provided on the face of the unmovable cylindrical housing.

EFFECT: simplified structure and enhanced precision.

9 cl, 8 dwg

The invention relates to medical devices, specifically to devices for prophylaxis and treatment of chronic bronchopulmonary ways the dose of drugs through the respiratory system.

Known dispenser for powdered drugs by RF patent for the invention №2111020, which contains a reservoir for receiving powder with a channel passing through the housing, a dispensing disc with a dispensing opening, a spring site, the means of limiting the rotation, the counter for counting the number of issued doses of powder. The disadvantage of this invention is the inability to control doses of the medicinal powder.

Also known dispenser of medicines ASW of the USSR №1733008. This powder inhaler, comprising a housing with turbulization the input and output channels, slot capsules, the button opening the capsule elements and mouthpiece, characterized in that to increase the efficiency of use of medicines due to the directional flow of the air-powder mixture in the larynx, the nebulizer is equipped with a nozzle with holes for air inlet, mounted concentric on the mouthpiece, the end of which has a bevel and protrudes from the nozzle, while turbulator made in the form located at an angle to the vertical axis wavy screen, and the output canaloplasty radial holes in the button, located opposite the turbulizer.

The disadvantages are the same as in the previously described counterpart.

Well-known is quite simple in construction inhaler for dry inhalation powder drug on patent RF №2080833, publ. 10.06.97, the Device includes a housing with openings of the air supply and suction inlet. In building capacity for therapeutic powder and filler under it. The dispenser is made in the form of a measuring chamber having the form of a semicylinder, the same diameter with the message channel of the suction pipe with the atmosphere through the dispenser and provided with a handwheel with the tab - pointer against the container with powder. The disadvantage of this pump is the inconvenience of use due to the design of the drive, made in the form of a flywheel.

Known dispenser of medicines under patent RF №2097069, IPC 6 a 61 M 15/00, publ. 27.11.97, This dispenser includes a housing, a mouthpiece and a button.

Disadvantages: the inability to control doses and the absence of a clear supply of drugs.

Known dispenser at the request of the Russian Federation No. 2003123177, IPC 7 a 61 M 15/00, publ. 27.01.2005 g (prototype).

This device for dispensing medicines includes a housing with a cavity for accommodating medicines, is attached to the mouthpiece, the button and the dispensing mechanism, the dispensing mechanism is made in the form of a rod with the end of techno posted metering sleeve, made with the possibility of an adjustable axial movement, and the rod performed stepwise with the possibility of axial movement relative to the housing and equipped with the side opposite the button, the return spring. In the cavity for placement of drugs has a spring-loaded piston.

The disadvantage of this device is rather complicated structure due to the presence of a large number of parts including two springs, as well as the inconvenience of use when dispensing and adjustment due to the small size of the buttons and dials with coarse calibration.

Objectives of the invention: simplified design, improved usability and improving the accuracy of the adjustment.

These tasks are achieved due to the fact that the device dispensing medicines, comprising a fixed housing with a cavity for accommodating medicines, is attached to the mouthpiece, the button and the dispensing mechanism, which is made in the form of a stepped shaft with concentric posted dosing sleeve, and the rod is made with the possibility of axial movement relative to the housing, which has a piston with a spring for supply of medicines, with the metering sleeve is connected to the button, the side surface of which is made in the form of a cylindrical shell is his, covering the fixed housing and its inner end abuts the spring is intended for supply of medicines, and the spring also functions return the button to its original position. The rod in the lower part fixed against rotation. In a stationary casing radial holes and a ring with an internal annular groove, forming a cavity for the preparation of a mixture of air and medicine. The scale adjustment of the dose deposited on the stationary housing, and on the side of the button is a window to visualize the scale of a dose adjustment. The mouthpiece can be made at the end of the fixed cylindrical body or on the side. The device in the lower part equipped with a removable lid. The mouthpiece is made with lock for quick Assembly and disassembly. The latch is made in the form of internal ledge, which corresponds to a depression in the stationary case.

The proposed solution has novelty, inventive step and industrial applicability. Novelty is confirmed by the results of the patent research, inventive step obtaining new properties, including improved ease of use and accuracy of dosing, while simplifying the structure of the device.

The invention is illustrated in the drawings, figure 1...8, g is e:

figure 1 shows the device in the initial position,

2 shows the scale,

figure 3 shows the device in the working position, the activation button is pressed,

figure 4 - cross section b-B of the first variant of the device

Fig 5 shows a drawing of the second variant of the device

figure 6 shows the cross-section In the second variant of the device

7 shows an external view of the second variant of the device

on Fig shows an external view of the first variant of the device.

Device for dispensing medicines (figure 1) contains the fixed housing 1 is attached to the mouthpiece 2. Inside a fixed housing 1 has a cavity "E" for placing the medicinal product. The mouthpiece 2 can be attached from below or from the side (Fig.7 and 8). Button 3 is made at the top and has a side surface 4 made in the form of a cylindrical shell. Under the button 3 is the dispensing mechanism, which is made in the form of a stepped shaft 5 with concentric posted dosing sleeve 6. The rod 5 and the metering sleeve 6 are connected by a screw 7 so that the shaft and sleeve have the possibility of axial movement relative to the stationary housing 1 and relative to each other. Inside a fixed housing has a piston 8 and a spring 9, which is intended to supply medicines under the eat spring 9 serves as both a return button 3 to its original position. A section of the lower part of the stem is made in the form of a square incoming with a gap in the square hole in the latch 10.

In a stationary housing 1 has radial holes "W" and the ring 11 with an internal annular groove, forming the cavity And for the preparation of a mixture of air and medicine. A cavity for accommodating medicines "E" is placed inside a fixed housing 1 beneath the piston 8. Scale adjust dose 12 deposited on the stationary housing 1 and on the side of the button 4 is a window to visualize the scale dose adjustment 13. The mouthpiece 2 can be performed on the end or side of the stationary housing 1. The device in the lower part equipped with a removable lid 14. The mouthpiece 2 has a latch 15 for quick disassembly. Preferably the latch 15 to perform internal ledge, which corresponds to the cavity of the stationary housing 1 (Fig 1 and 2). At the bottom of the device installed swirler 16 and the filter screen 17, which protects the patient from inhalation of large particles.

When operating in a cavity "E" pre-filled powdered drug. Rotating the metering sleeve 6, by turning the key 3 change the gap "D", for example, when turning clockwise it is reduced, thereby reducing the dose of medication. About the size of the dose, su the Yat scale dose adjustment 12, check digit corresponding to the dose of the medicinal product is visible through the window to visualize the scale dose adjustment 13 (figure 2). Dose of the powder medicine is served by pressing 3. When the rod 5 is lowered to the lowest position, the compressed spring 9 and the dosing sleeve 6 push dose medications in the gap "D". The piston 8 is pressed, the drug, which is in the cavity "E", which provides a continuous supply of medicines to the dosing sleeve 6. During inhalation of the patient air passing through the radial holes "W", captures the medicinal product and transports it through the cavity And the mouthpiece 2 in the respiratory tract (figure 5 and 6).

The application of the invention allowed:

1. To simplify the design by reducing the number of parts.

2. To ensure user convenience by increasing the diameter of the button, placing the scale on a larger diameter and run the side of the button corrugated.

3. To provide more precise control of the dose by placing the scale on a larger diameter.

1. Device for dispensing medicines, comprising a fixed housing with a cavity for accommodating medicines, is attached to the mouthpiece, the button and the dispensing mechanism, wherein the dispensing mechanism is made in the form of step is th piston rod concentric posted metering sleeve, with the specified stem is made with the possibility of axial movement relative to the stationary housing, which has a piston with a spring to supply medicines, dosing sleeve connected to the button, the side surface of which is made in the form of a cylindrical shell, covering the fixed housing and its inner end abuts against the aforementioned spring, who is also the function return the button to its original position.

2. The device according to claim 1, characterized in that the rod in the lower part fixed against rotation.

3. The device according to claim 1, characterized in that a stationary casing radial holes and a ring with an internal annular groove, forming a cavity for the preparation of a mixture of air and medication.

4. The device according to claim 1, characterized in that the scale adjustment of the dose deposited on the stationary housing, and on the side of the button is a window to visualize the scale of a dose adjustment.

5. The device according to claim 1, characterized in that the mouthpiece is made at the end of the stationary casing.

6. The device according to claim 1, characterized in that the mouthpiece is made in the side of the fixed body.

7. The device according to claim 1, characterized in that it is in the lower part equipped with a removable lid.

8. The device according to claim 1, characterized in that the mouthpiece is made by clamp, both the providing quick Assembly and disassembly.

9. The device according to claim 8, characterized in that the retainer is made in the form of internal ledge, which corresponds to a depression in the stationary case.

10. Device according to any one of claims 1 to 9, characterized in that the side buttons are made of corrugated.