IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0370847
(2003-02-21)
|
우선권정보 |
GB-200204328 (2002-02-25) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
25 인용 특허 :
10 |
초록
▼
A flow indicator (F) for an inhaler (I) comprises a housing ( 1 ) defining a mouthpiece (M 2 ), an inlet ( 2 ) for connection to the product-dispensing chamber of the inhaler, a chamber ( 3 ) positioned between the inlet and the mouthpiece of the indicator, and an indicator member ( 4 ) movably moun
A flow indicator (F) for an inhaler (I) comprises a housing ( 1 ) defining a mouthpiece (M 2 ), an inlet ( 2 ) for connection to the product-dispensing chamber of the inhaler, a chamber ( 3 ) positioned between the inlet and the mouthpiece of the indicator, and an indicator member ( 4 ) movably mounted in the chamber in such a manner that inhalation at the mouthpiece of the indicator causes the indicator member to move within the chamber. The indicator member ( 4 ) is so mounted as to co-operate with a switch member ( 6, 9 ) associated with the housing ( 1 ) to provide an indication when inhalation is at an optimum rate for a given inhaler attached to the inlet ( 2 ).
대표청구항
▼
1. A flow indicator for an inhaler, the flow indicator comprising:a housing defining a mouthpiece,an inlet for connection to a product-dispensing chamber of the inhaler,a chamber positioned between the inlet and the mouthpiece of the indicator, andan indicator member movably mounted in the chamber i
1. A flow indicator for an inhaler, the flow indicator comprising:a housing defining a mouthpiece,an inlet for connection to a product-dispensing chamber of the inhaler,a chamber positioned between the inlet and the mouthpiece of the indicator, andan indicator member movably mounted in the chamber in such a manner that inhalation at the mouthpiece of the indicator causes the indicator member to move within the chamber, the indicator member being so mounted as to co-operate with a switch member associated with the housing to provide an indication when inhalation is at an optimum rate for a given inhaler attached to the inlet,wherein a vane pivotally mounted within the chamber constitutes the indicator member, and wherein the vane carries a counterweight which is positioned on the opposite side of a pivot to a magnet. 2. A flow indicator as claimed in claim 1, wherein the vane carries the magnet, and the switch member is a magnetic reed switch, the magnet and the reed switch constituting a magnetic switch. 3. A flow indicator as claimed in claim 2, further comprising an electrical circuit including the magnetic switch and a transducer. 4. A flow indicator as claimed in claim 3, wherein the transducer is an LED. 5. A flow indicator as claimed in claim 3, wherein the electrical circuit includes a battery. 6. A flow indicator as claimed in claim 1, wherein the vane carries the magnet, and the switch member is constituted by a plurality of magnetic reed switches attached to the housing, a first reed switch being mounted so as to be aligned with the magnet when inhalation is at said optimum rate, the other reed switches being positioned on opposite sides of said first reed switch to indicate to a user when an inhalation rate is lower or higher than said optimum rate, the magnet and any one of the reed switches constituting a magnetic switch. 7. A flow indicator as claimed in claim 6, further comprising an electrical circuit including the magnetic switch and a transducer. 8. A flow indicator as claimed in claim 7, wherein the transducer is an LED. 9. A flow indicator as claimed in claim 7, wherein the electrical circuit includes a battery. 10. A flow indicator as claimed in claim 1, further comprising a spring for biasing the vane away from the position indicating an optimum inhalation rate and towards the inlet. 11. A flow indicator as claimed in claim 10, wherein the spring has a predetermined spring rating adapted to the optimum inhalation rate for a given user. 12. A flow indicator as claimed in claim 11, wherein the spring is chosen from a plurality of springs, each of which has a different spring rating adapted to the optimum inhalation rate of a different user. 13. A flow indicator as claimed in claim 1, further comprising an adaptor for connecting the inlet to a mouthpiece of the inhaler. 14. A flow indicator for an inhaler, the flow indicator comprising:a housing defining a mouthpiece,an inlet for connection to a product-dispensing chamber of the inhaler,a chamber positioned between the inlet and the mouthpiece of the indicator, andan indicator member movably mounted in the chamber in such a manner that inhalation at the mouthpiece of the indicator causes the indicator member to move within the chamber, the indicator member being so mounted as to co-operate with a switch member associated with the housing to provide an indication when inhalation is at an optimum rate for a given inhaler attached to the inlet,wherein a vane pivotally mounted within the chamber constitutes the indicator member, and wherein the vane carries a magnet, and the switch member is constituted by a plurality of magnetic reed switches attached to the housing, a first reed switch being mounted so as to be aligned with the magnet when inhalation is at said optimum rate, the other reed switches being positioned on opposite sides of said first reed switch to indicate to a user when an inhalation rate is lower. 15. A flow indicator as claimed in claim 14, f urther comprising an electrical circuit including the magnetic switch and a transducer. 16. A flow indicator as claimed in claim 15, wherein the transducer as an LED. 17. A flow indicator as claimed in claim 15, wherein the electrical circuit includes a battery. 18. A flow indicator as claimed in claim 14, wherein the vane carries a counterweight which is positioned on the opposite side of a pivot to the magnet. 19. A flow indicator as claimed in claim 14, further comprising a spring for biasing the vane away from the position indicating an optimum inhalation rate and towards the inlet. 20. A flow indicator as claimed in claim 19, wherein the spring has a predetermined spring rating adapted to the optimum inhalation rate for a given user. 21. A flow indicator as claimed in claim 20, wherein the spring is chosen from a plurality of springs, each of which has a different spring rating adapted to the optimum inhalation rate of a different user. 22. A flow indicator as claimed in claim 14, further comprising an adaptor for connecting the inlet to a mouthpiece of the inhaler.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.