IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0962506
(2001-09-25)
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발명자
/ 주소 |
- Dalhart, Mark D.
- Sand, William F.
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출원인 / 주소 |
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
24 인용 특허 :
3 |
초록
▼
A dispenser for dispensing at two flow rates eductively draws a chemical fluid such as a concentrated cleaning solution for diluting with a motive fluid such as water. Using eduction rather than gravity feed provides a consistent dilution ratio over a range of pressures of the motive fluid. A chemic
A dispenser for dispensing at two flow rates eductively draws a chemical fluid such as a concentrated cleaning solution for diluting with a motive fluid such as water. Using eduction rather than gravity feed provides a consistent dilution ratio over a range of pressures of the motive fluid. A chemical reservoir contains the chemical fluid and a bottle insert assembly for interfacing to the dispenser. The bottle insert assembly seals an opening to the reservoir when the reservoir is not inserted in the dispenser, preventing leaks. Also, the bottle insert assembly includes dual pickup tubes, each with a purge accumulator, to allow dual rate flow at the same or different dilution ratios as well as drawing back unused chemical fluids from the dispenser to avoid carryover or contamination.
대표청구항
▼
A dispenser for dispensing at two flow rates eductively draws a chemical fluid such as a concentrated cleaning solution for diluting with a motive fluid such as water. Using eduction rather than gravity feed provides a consistent dilution ratio over a range of pressures of the motive fluid. A chemic
A dispenser for dispensing at two flow rates eductively draws a chemical fluid such as a concentrated cleaning solution for diluting with a motive fluid such as water. Using eduction rather than gravity feed provides a consistent dilution ratio over a range of pressures of the motive fluid. A chemical reservoir contains the chemical fluid and a bottle insert assembly for interfacing to the dispenser. The bottle insert assembly seals an opening to the reservoir when the reservoir is not inserted in the dispenser, preventing leaks. Also, the bottle insert assembly includes dual pickup tubes, each with a purge accumulator, to allow dual rate flow at the same or different dilution ratios as well as drawing back unused chemical fluids from the dispenser to avoid carryover or contamination. f the heart wherein inserting the implant into the left ventricle includes introducing the implant into an aorta and passing the implant through an aortic valve interposed between the aorta and the left ventricle; introducing a guide element into the left ventricle, the guide element being configured to be positioned in the left ventricle between a plane of the mitral valve and a plane associated with papillary muscles of the heart, wherein inserting the implant into the left ventricle includes positioning the implant such that the implant uses the guide element as a track; positioning the at least one implant with respect to the mitral valve, wherein positioning the implant includes orienting the implant in the left ventricle substantially below the mitral valve; attaching the implant to tissue located near the mitral valve, wherein attaching the implant to the tissue includes (a) introducing a catheter into the left ventricle using the guide element as a track, wherein the catheter includes at least one pointed wire, the pointed wire including a tip section, the pointed wire further being configured to carry a coupling element, the tip section being configured for insertion into the implant and the tissue, (b) pushing the tip section through the implant and the tissue, wherein pushing the tip section through the implant and the tissue positions at least a part of the coupling element on an atrial side of the tissue, and (c) retracting the tip section from the implant and the tissue, wherein retracting the tip section causes the coupling element to substantially couple the implant with the tissue; reducing an arc length of the implant, wherein reducing the arc length of the implant substantially reduces an arc length associated with the mitral valve; and removing the guide element from the left ventricle after attaching the implant to the tissue. 5. A method as recited in claim 4 wherein the coupling element is a T-bar. 6. A method as recited in claim 4 wherein the tissue is fibrous tissue. 7. A method for performing annuloplasty on a mitral valve of a heart, the method comprising: inserting a first catheter assembly into a left ventricle through an aorta of the heart and an aortic valve of the heart; positioning a guide element along a wall of the left ventricle beneath the mitral valve using the first catheter assembly, wherein the first catheter assembly includes a first catheter and a second catheter, the second catheter being located at least partially within the first catheter, the first catheter being arranged to facilitate the positioning of the second catheter along the wall of the left ventricle, and wherein positioning the guide element along the wall includes inserting the guide element through the second catheter, and anchoring the guide element against the wall; positioning at least one implant in the left ventricle beneath the mitral valve using the guide element as a guide; and connecting the at least one implant to tissue near the mitral valve. 8. A method as recited in claim 7 further including: removing the first catheter and the second catheter from the left ventricle; and inserting a third catheter into the left ventricle, the third catheter configured to carry the implant and to use the guide element as a guide. 9. A method for performing annuloplasty on a mitral valve of a heart, the method comprising: inserting a first catheter assembly into a left ventricle through an aorta of the heart and an aortic valve of the heart; positioning a guide element along a wall of the left ventricle beneath the mitral valve using the first catheter assembly; positioning at least one implant in the left ventricle beneath the mitral valve using the guide element as a guide; and connecting the at least one implant to tissue near the mitral valve, wherein connecting the implant to the tissue near the mitral valve includes inserting a second catheter into the left ventricle, the second catheter be ing configured to carry a first connection element and inserting the first connection element through the implant and the tissue such that the implant and the tissue are coupled by the first connection element, wherein the second catheter is further configured to carry a second connection element; and inserting the second connection element through the implant and the tissue such that the implant and the tissue are coupled by the second connection element. 10. A method for performing annuloplasty on a mitral valve of a heart, the method comprising: inserting a first catheter assembly into a left ventricle through an aorta of the heart and an aortic valve of the heart; positioning a guide element along a wall of the left ventricle beneath the mitral valve using the first catheter assembly; positioning at least one implant in the left ventricle beneath the mitral valve using the guide element as a guide, wherein positioning the implant in the left ventricle beneath the mitral valve using the guide element further includes inserting at least one balloon into the left ventricle and inflating the balloon, wherein inflating the balloon positions the implant generally against the mitral valve; and connecting the at least one implant to tissue near the mitral valve, wherein connecting the implant to the tissue near the mitral valve includes inserting a second catheter into the left ventricle, the second catheter being configured to carry a first connection element and inserting the first connection element through the implant and the tissue such that the implant and the tissue are coupled by the first connection element. 11. A method for performing annuloplasty on a mitral valve of a heart, the method comprising: inserting a first catheter assembly into a left ventricle through an aorta of the heart and an aortic valve of the heart; positioning a guide element along a wall of the left ventricle beneath the mitral valve using the first catheter assembly; positioning at least one implant in the left ventricle beneath the mitral valve using the guide element as a guide, wherein positioning the implant in the left ventricle beneath the mitral valve using the guide element further includes inserting at least one expandable element into the left ventricle and expanding the expandable element, wherein expanding the expandable element positions the implant generally against the mitral valve; and connecting the at least one implant to tissue near the mitral valve, wherein connecting the implant to the tissue near the mitral valve includes inserting a second catheter into the left ventricle, the second catheter being configured to carry a first connection element and inserting the first connection element through the implant and the tissue such that the implant and the tissue are coupled by the first connection element.
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