US5460609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromechanical inflation/deflation system
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 1993-11-22
•
Granted: 1995-10-24
•
Expires: 2013-11-22
Abstract
Abstract An automated inflation/deflation system for use in connection with a dilatation balloon catheter in vascular procedures that greatly facilitates the operator's control of the inflation or deflation of the balloon and control of maneuvering the proximal end of the catheter for proper positioning of the balloon inside the patient's vasculature. By use of a pressure transducer and a display unit, the operator can monitor information relating to inflation pressure and inflation time. In addition, the system provides for safety features for effectuating a rapid reduction in balloon pressure.
Inventors
- 👤 Joseph A. O'Donnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:45
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1018; A61M25/10184; A61M25/10187; A61M25/10188; A61M25/104
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
211 words
An inflation/deflation system, comprising: a catheter having an inflatable region at its distal end and an inflation lumen providing a fluid path between a proximal end of said catheter and the interior of said inflatable region; a fluid chamber having a plunger for pressurizing a quantity of inflation fluid contained in said fluid chamber; a conduit located between said fluid chamber and said catheter inflation lumen for directing said inflation fluid between said fluid chamber and the interior of said inflation region; a motor drive unit coupled to the plunger to control the position of the plunger in the fluid chamber in response to control signals to thereby control the inflation fluid pressure between said fluid chamber and the interior of said inflatable region; and a control switch located near said proximal end of said catheter and remote from but in communication with said drive unit, said control switch adapted to provide control signals to the drive unit to cause the drive unit to control the movement of said plunger and thereby pressurize or depressurize said inflation fluid in said fluid chamber, and having a rapid decrease/pressure button which, when activated, controls the motor drive unit to cause fluid pressure in said inflatable region to rapidly decrease to a predetermined level.
Claim 2
Dependent Claim
211 words
An inflation/deflation system, comprising: a catheter having an inflatable region at its distal end and an inflation lumen providing a fluid path between a proximal end of said catheter and the interior of said inflatable region; a fluid chamber having a plunger for pressurizing a quantity of inflation fluid contained in said fluid chamber; a conduit located between said fluid chamber and said catheter inflation lumen for directing said inflation fluid between said fluid chamber and the interior of said inflation region; a motor drive unit coupled to the plunger to control the position of the plunger in the fluid chamber in response to control signals to thereby control the inflation fluid pressure between said fluid chamber and the interior of said inflatable region; and a control switch located near said proximal end of said catheter and remote from but in communication with said drive unit, said control switch adapted to provide control signals to the drive unit to cause the drive unit to control the movement of said plunger and thereby pressurize or depressurize said inflation fluid in said fluid chamber, and having a rapid decrease/pressure button which, when activated, controls the motor drive unit to cause fluid pressure in said inflatable region to rapidly decrease to a predetermined level.
Claim 3
Dependent Claim
31 words
The inflation/deflation system of claim 1, wherein said rapid decrease/pressure button, when activated, controls the motor drive unit to rapidly decrease pressure in said inflatable region to a negative pressure value.
Claim 4
Dependent Claim
137 words
The inflation/deflation system of claim 2 wherein: the fluid chamber comprises a syringe having a body with the plunger movably mounted in the syringe body for altering the internal volume of the syringe body to thereby control the pressure of the fluid, the body having a first end with an outlet port formed in the first end with a tapered transition member between the body and the outlet port and the syringe is oriented vertically so that the outlet is at a higher elevation than the remainder of the syringe so that bubbles in the syringe rise to the outlet port; and the motor drive unit is connected to the plunger for moving the plunger in relation to the syringe body to alter the volume of the syringe body and the pressure of the quantity of fluid.
Claim 5
Dependent Claim
61 words
The inflation/deflation system of claim 3 further comprising: sensing means for determining the pressure of the fluid and for generating a sensor signal indicative of the determined pressure; and means for transmitting said signal wherein the control switch comprises a display unit that receives the sensor signal from said transmitting means and displays the pressure of said fluid in response thereto.
Claim 6
Dependent Claim
15 words
The inflation/deflation system of claim 4 wherein the display unit presents pressure and pressure duration.
References Cited (Backward Citations)
US3623474A
Cited
US3701345A
Cited
US3698381A
Cited
US3720199A
Cited
US4006736A
Cited
US3985123A
Cited
US4056043A
Cited
US4106002A
Cited
US4231715A
Cited
US4370982A
Cited
US4332254A
Cited
US4444335A
Cited
US4439186A
Cited
US4439185A
Cited
US4677982A
Cited
US4493704A
Cited
US4583917A
Cited
US4854324A
Cited
US4583974A
Cited
US4576181A
Cited
US4677980A
Cited
US4694409A
Cited
US4610256A
Cited
US4610256B1
Cited
US4608994A
Cited
US4651738A
Cited
US4743230A
Cited
US4655749A
Cited
US4654027A
Cited
US4758223A
Cited
US4796606A
Cited
US4832692A
Cited
US4781192A
Cited
US4723938A
Cited
US4795431A
Cited
US4808165A
Cited
US4838864A
Cited
US4985015A
Cited
US4872483A
Cited
US4872483B1
Cited
US5019041A
Cited
US5004472B1
Cited
US5009662B1
Cited
US5021046A
Cited
US5009662A
Cited
US5004472A
Cited
US4952928A
Cited
US4940459A
Cited
US4944726A
Cited
WO1990004987A1
Cited
US4929238A
Cited
US5007904A
Cited
US4919121A
Cited
US5084060A
Cited
US5135488A
Cited
US5057078A
Cited
WO1990011040A2
Cited
US5047015A
Cited
US5201753A
Cited
US4911695A
Cited
US5015233A
Cited
US5152776A
Cited
WO1992006735A1
Cited
US5218970A
Cited
WO1992015359A1
Cited
US5215523A
Cited
US5163904A
Cited
US5273537A
Cited
US5259838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-23 | 1999-04-24 | 1999-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-23 | 2003-04-24 | 2003-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-23 | 2007-04-24 | 2007-10-24 | $7700.00 | Window Closed / Lapsed |