US Patent No: 6,165,127
Number of patents in Portfolio can not be more than 2000
Acoustic imaging catheter and the like
Stats
-
Dec 26, 2000
Issued date -
Sep 26, 1997
filing date -
08/938,342
serial no -
Expired
status
Importance
Loading Importance Indicators...
Abstract
Acoustic imaging balloon catheters formed by a disposable liquid-confining sheath supporting a high fidelity, flexible drive shaft which carries on its end an ultrasound transducer and includes an inflatable dilatation balloon. The shaft and transducer rotate with sufficient speed and fidelity to produce real time images on a T.V. screen. In preferred embodiments, special features that contribute to the high fidelity of the drive shaft include the particular multi-filar construction of concentric, oppositely wound, interfering coils, a pre-loaded torque condition on the coils enhancing their interfering contact, and dynamic loading of the distal end of the probe, preferably with viscous drag. The coil rotating in the presence of liquid in the sheath is used to produce a desirable pressure in the region of the transducer. Numerous selectable catheter sheaths are shown including a sheath with an integral acoustically-transparent window, sheaths with end extensions that aid in positioning, a liquid injection-producing sheath, a sheath having its window section under tension employing an axially loaded bearing, a sheath carrying a dilatation or positioning balloon over the transducer, a sheath carrying a distal rotating surgical tool and a sheath used in conjunction with a side-viewing trocar.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- International Classification not provided for expired patents
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 4,841,977 Ultra-thin acoustic transducer and balloon catheter using same in imaging array subassembly | 226 | 1987 | |
| 5,000,185 Method for intravascular two-dimensional ultrasonography and recanalization | 272 | 1988 | |
| 5,049,130 System and method for pressure filling of catheters | 63 | 1988 | |
| 5,029,588 Laser catheter with imaging capability | 188 | 1989 | |
| 5,002,059 Tip filled ultrasound catheter | 101 | 1989 | |
| 4,991,588 Doppler guide wire | 67 | 1989 | |
| 5,117,831 Vascular catheter having tandem imaging and dilatation components | 93 | 1990 | |
| 5,095,911 Guidewire with imaging capability | 108 | 1990 | |
| 5,100,424 Intravascular catheter having combined imaging abrasion head | 200 | 1990 | |
| 5,372,138 Acousting imaging catheters and the like | 159 | 1992 | |
| 5,313,949 Method and apparatus for intravascular two-dimensional ultrasonography | 77 | 1993 | |
| 5,676,151 Method and apparatus for intravascular ultrasonography | 29 | 1993 | |
| 5,582,178 Method and apparatus for intravascular ultrasonography | 16 | 1995 | |
| 5,651,364 Method and apparatus for intravascular | 28 | 1995 | |
|
|
|||
| 4,375,818 Ultrasonic diagnosis system assembled into endoscope | 107 | 1980 | |
| 4,391,282 Coeliac cavity ultrasonic diagnosis apparatus | 99 | 1980 | |
| 4,374,525 Ultrasonic diagnostic apparatus for endoscope | 60 | 1981 | |
| 4,466,443 Ultrasonic diagnostic apparatus for examination of a coeliac cavity | 51 | 1982 | |
| 4,466,444 Ultrasonic diagnostic apparatus | 41 | 1982 | |
| 4,494,549 Device for diagnosing body cavity interiors with supersonic waves | 94 | 1982 | |
| 4,558,706 Device for diagnosing body cavity interiors with ultrasonic waves | 35 | 1983 | |
| 4,633,882 Device for diagnosing body cavity interiors with ultrasonic waves | 38 | 1985 | |
| 4,674,515 Ultrasonic endoscope | 87 | 1985 | |
| 4,732,156 Ultrasonic endoscope | 103 | 1986 | |
| 4,936,307 Ultrasonic observation system and an ultrasonic endoscope system | 34 | 1988 | |
|
|
|||
| 4,516,972 Guiding catheter and method of manufacture | 280 | 1983 | |
| 4,748,982 Reinforced balloon dilatation catheter with slitted exchange sleeve and method | 588 | 1987 | |
| 5,090,959 Imaging balloon dilatation catheter | 81 | 1990 | |
| 5,300,085 Angioplasty apparatus facilitating rapid exchanges and method | 244 | 1993 | |
| 5,496,346 Reinforced balloon dilatation catheter with slitted exchange sleeve and method | 235 | 1993 | |
|
|
|||
| 5,421,338 Acoustic imaging catheter and the like | 137 | 1994 | |
| 5,715,825 Acoustic imaging catheter and the like | 127 | 1996 | |
|
|
|||
| 4,899,757 Ultrasound imaging probe with zero dead space | 76 | 1988 | |
| 5,024,234 Ultrasonic imaging catheter with guidewire channel | 127 | 1989 | |
|
|
|||
| 4,462,408 Ultrasonic endoscope having elongated array mounted in manner allowing it to remain flexible | 61 | 1982 | |
|
|
|||
| 4,729,384 Balloon assembly for esophageal probe | 70 | 1986 | |
|
|
|||
| 4,887,606 Apparatus for use in cannulation of blood vessels | 89 | 1989 | |
|
|
|||
| 4,290,427 Endarterectomy apparatus | 34 | 1979 | |
|
|
|||
| 4,911,170 High frequency focused ultrasonic transducer for invasive tissue characterization | 73 | 1988 | |
|
|
|||
| 4,669,465 Laser catheter control and connecting apparatus | 71 | 1984 | |
|
|
|||
| 4,572,201 Probe for intraluminal ultrasonic scanner | 46 | 1984 | |
|
|
|||
| 4,325,381 Ultrasonic scanning head with reduced geometrical distortion | 32 | 1979 | |
|
|
|||
| 4,951,677 Acoustic imaging catheter and the like | 302 | 1988 | |
|
|
|||
| 4,955,377 Device and method for heating tissue in a patient's body | 433 | 1988 | |
|
|
|||
| 4,771,788 Doppler tip wire guide | 82 | 1987 | |
|
|
|||
| 4,794,931 Catheter apparatus, system and method for intravascular two-dimensional ultrasonography | 433 | 1986 | |
|
|
|||
| 4,821,731 Acoustic image system and method | 247 | 1987 | |
|
|
|||
| 4,979,939 Atherectomy system with a guide wire | 220 | 1989 | |
|
|
|||
| 4,431,006 Passive ultrasound needle probe locator | 74 | 1982 | |
|
|
|||
| 5,105,819 Ultrasound endoscope device | 101 | 1991 | |
|
|
|||
| 4,754,752 Vascular catheter | 224 | 1987 | |
|
|
|||
| 4,589,419 Catheter for treating arterial occlusion | 50 | 1984 | |
|
|
|||
| 4,319,580 Method for detecting air emboli in the blood in an intracorporeal blood vessel | 121 | 1979 | |
|
|
|||
| 4,273,128 Coronary cutting and dilating instrument | 203 | 1980 | |
|
|
|||
| 4,605,009 Ultrasonic sweep echography and display endoscopic probe | 73 | 1984 | |
|
|
|||
| 4,917,097 Apparatus and method for imaging small cavities | 264 | 1987 | |
|
|
|||
| 4,802,487 Endoscopically deliverable ultrasound imaging system | 98 | 1987 | |
|
|
|||
| 4,275,597 Ultrasonic beam scanning technique and apparatus | 38 | 1977 | |
|
|
|||
| 4,475,553 Ultrasonic needle housing probe with continuous locator array | 29 | 1982 | |
|
|
|||
| 4,327,738 Endoscopic method & apparatus including ultrasonic B-scan imaging | 61 | 1979 | |
| 4,402,308 Medical implantation device | 102 | 1980 | |
| 4,354,500 System using ultrasonic energy for detection and quantification of air emboli | 34 | 1980 | |
| 4,354,501 Esophageal catheter including ultrasonic transducer for use in detection of air emboli | 56 | 1980 | |
| 4,576,177 Catheter for removing arteriosclerotic plaque | 200 | 1983 | |
| 5,040,548 Angioplasty mehtod | 359 | 1990 | |
| 5,061,273 Angioplasty apparatus facilitating rapid exchanges | 419 | 1990 | |
| 5,350,395 Angioplasty apparatus facilitating rapid exchanges | 146 | 1992 | |
| 5,501,227 Angioplasty apparatus facilitating rapid exchange and method | 163 | 1993 | |
| 5,451,233 Angioplasty apparatus facilitating rapid exchanges | 218 | 1994 | |
Patent Citation Ranking
- Citation Ranking not provided for expired patents