Medical instrument

• US 20020022797A1
• Filed: 01/12/2001
• Published: 02/21/2002
• Est. Priority Date: 08/17/2000
• Status: Active Grant

• Current Assignee: Hana Precision Co., Ltd.
• Original Assignee: G-Intek Co., Ltd.
• Inventors: Suh, Jeong-Joo
• Granted Patent: US 6,520,931 B2
• Time in Patent Office: Days
• US Class Current: 604/48
• CPC Class Codes: A61B 2017/246 for cleaning of the nose
• CPC Class Codes: A61M 1/772 operating alternately
• CPC Class Codes: A61M 11/06 of the injector type
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2210/0618 Nose
• CPC Class Codes: A61M 3/0258 by means of electric pumps

Abstract

A medical instrument includes a case formed with a receiving space, a motor mounted in the case as a driving source which is driven by a battery, a power transmission element for converting a rotational motion of the motor to a linear motion, a pressure element connected to the power transmission element for inhaling and discharging ambient air so as to generate a suction force or discharging force of a predetermined pressure, a suction/discharge element integrally coupled with the pressure element and having an inlet for allowing an air to be inspired into the pressure element and an outlet for allowing the inspired air to be discharged from the pressure element to the outside, a power switch mounted an external surface of the case for controlling operations of the motor. Moreover, either of device or an injection device is detachably mounted to the main body of the medical instrument in communication with the inlet or the outlet of the suction/discharge element.

Claims

1. A medical instrument comprising:

a case forming a shape of a main body of the medical instrument and having a receiving space;

a motor mounted in the case as a driving source, which is driven by a battery;

a power transmission means for converting a rotational motion of the motor to a linear motion;

a pressure means connected to the power transmission means for inhaling and discharging ambient air so as to generate a suction force or discharging force of a predetermined pressure;

a suction/discharge means integrally coupled with the pressure means and having an inlet for allowing an air to be inspired into the pressure means and an outlet for allowing the inspired air to be discharged from the pressure means to the outside; and

a power switch mounted an external surface of the case for controlling operations of the motor;

wherein either of a suction device or an injection device is detachably mounted to the medical instrument in communication with the inlet or outlet of the suction/discharge means.

2. A medical instrument of claim 1, wherein the power transmission means comprises an eccentric cam of which a rotation center is fixedly mounted on a rotation shaft of the motor, a bearing coupled to an eccentric shaft and integrally formed with the eccentric cam, and a power transmission member coupled outside the bearing for converting an eccentric rotational motion of the eccentric cam to a linear reciprocating motion.

3. A medical instrument of claim 1, wherein the pressure means comprises a piston mounted at one side of the power transmission member, a cylinder for moving reciprocatingly in the piston, a valve seat positioned at an upper part of the cylinder, and a suction/discharge member assembled with the cylinder, the valve seat being interposed between the suction/discharge member and the cylinder.

4. A medical instrument of claim 1, wherein the suction device is detachably coupled to the main body, so that medical instrument serves as a nasal mucus aspirator by the suction force generated by the actuation of the pressure means.

5. A medical instrument of claim 4, wherein the suction device comprises a nasal mucus container to be detachably fitted and filled with inspired nasal mucus, and a nasal mucus suction hole coupled at a front end of the nasal mucus container for initiating the suction of the nasal mucus.

6. A medical instrument of claim 5, wherein the nasal mucus container has an insertion part detachably coupled with an interior part of a cavity formed in a front end of the medical instrument to be coupled with the medical instrument, and the insertion part is formed with a groove corresponding to a protrusion formed on inner walls of the cavity for tight coupling between the suction device and the medical instrument.

7. A medical instrument of claim 6, wherein the insertion part of the nasal mucus container is provided at one side with a discharge tube passage for discharging air to be discharged to the outside by the actuation of the pressure means.

8. A medical instrument of claim 1, further comprising:

an intermittent injection means for continuously injecting fluid with a predetermined time interval as selected by a user when the injection device is mounted to use.

9. A medical instrument of claim 8, wherein the intermittent injection means comprises an air introducing part, fixed to the case, having an opened part and an air inlet for performing the suction or discharge of air, and a control part screw-coupled movably in the air introducing part for controlling an amount of air to be introduced into the air introducing part to control fluid injection.

10. A medical instrument of claim 1, wherein the injection device is detachably coupled with the medical instrument for serving as a rhinitis treatment instrument by injecting a fluid such as therapeutic medicines by repulsive force generated by the actuation of the pressure means.

11. A medical instrument of claim 10, wherein the injection device comprises:

a main body having a fluid channel formed in the middle portion longitudinally for flowing fluid along, and air channels formed outside of the fluid channel for allowing the fluid discharged by reducing an internal pressure of the fluid channel by the force of air generated by the pressure means of the medical instrument;

a nozzle coupled with an outside of a front end part of the injection device with in a predetermined distance;

a fluid supply tube connected to the fluid channel at one side and to a container filled with a fluid at the other side; and

an air supply tube connected to the fluid channel and the intermittent injection means, in turn, for mixing and introducing ambient air into the fluid channel a predetermined time interval when injecting the fluid.

12. A medical instrument of claim 10, wherein the injection device has an insertion part to be coupled with a cap, the cap being coupled at a front end of the medical instrument and the insertion part is formed with a groove corresponding to the protrusion formed on the inner walls of the cap for tight coupling between the injection device and the medical instrument.

13. A medical instrument of claim 12, wherein the insertion part has a suction tube passage for supplying ambient air by the pressure means.