Image guided catheter having deployable balloons and pericardial access procedure
Inventors
Assignees
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Publication Number
US-8147413-B2
Publication Date
2012-04-03
Expiration Date
Abstract
An interventional medical device that incorporates an imaging system may be minimally invasive and equipped with an anchoring portion that may be slidable and fixed in a predetermined position of its elongate body outside the human body, the device further comprising deployable first and second balloons for also securing the device to an internal wall, for example, within a human body. The medical device can be in the form of a catheter, a sheath or comprise interventional devices, particularly those suitable for minimally invasive procedures in the pericardium. The dual sealing/locking balloons may comprise a slidably moveable assembly for moving from a first position over an inflation channel to a second position over one inflation/deflation channel for separately inflating a distal balloon and then a proximal balloon to the patient's skin surface.
Core Innovation
The invention provides a medical device having an elongate body with a central lumen and an ultrasound imaging transducer proximate to a distal end. The elongate body is configured for direct access from an exterior surface of a patient to the interior via an approach angle, including access through an internal human body wall and/or a body organ lining. The device uses first and second balloons, each residing in respective indentations at different positions intermediate the length, to sandwich an internal body wall and a body organ lining in an inflated state.
The first and second indentations are radially within the exterior surface and the balloons are configured to seal and lock the elongate body in place at the internal wall or lining during use. The first and second balloons and their indentations comprise an assembly that is slidably moveable along the elongate body. The assembly communicates with a single inflation/deflation channel of the elongate body, such that the balloon assembly can shift between positions over the inflation/deflation channel while separately receiving inflation fluid to cause separate inflation of the distal and proximal balloon material.
An image guided catheter is further described with an elongate body configured for direct access from an exterior surface of a human body to an internal human body wall by a selected approach angle during use. The catheter includes a distal ultrasound imaging transducer and first and second indentations proximate to one another along and radially within the exterior surface. Valve apparatus and one inflation/deflation channel running from a proximal end to a vicinity of the indentations enable separately feeding inflation fluid for separate inflation of balloon material, while the inflated balloon material of each indentation sandwiches the internal human body wall and seals and locks the catheter during use.
Claims Coverage
The provided material includes three independent claims covering a medical device/catheter and a sheath, each emphasizing a slidably moveable dual-balloon assembly that sandwiches and locks an internal wall or organ lining using ultrasound imaging and a single inflation/deflation channel with valve apparatus. Across these independent claims, the main inventive features are centered on the dual recessed indentations and balloons, ultrasound imaging at or proximate a distal end, and the slidably moveable assembly communicating with a single inflation/deflation channel for separately inflating distal and proximal balloon portions.
Ultrasound-guided dual-balloon elongate device with a slidably moveable balloon assembly
An elongate body with a central lumen and an exterior surface, an ultrasound imaging transducer proximate to a distal end, and first and second balloons residing in respective radially recessed indentations, wherein the balloons in an inflated state sandwich an internal human body wall and a body organ lining to seal and lock the device in place; and wherein the first and second balloons and the respective indentations comprise an assembly slidably moveable along the elongate body that communicates with a single inflation/deflation channel.
Image guided catheter with first and second radially recessed indentations carrying balloon material and separate inflation via valve apparatus
An image guided catheter having an elongate body configured for direct access by a selected approach angle, a distal ultrasound imaging transducer, first and second indentations radially within the exterior surface, and first and second balloon material fixed to distal and proximate walls of the respective indentations; one inflation/deflation channel running from a proximal end to a vicinity of each indentation; and valve apparatus for receiving inflation fluid for separately feeding each indentation to separately inflate the balloon material so the inflated balloon material sandwiches the internal human body wall to seal and lock the catheter, wherein the balloon material and indentations comprise an assembly slidably moveable along the elongate body and communicate with a single inflation/deflation channel.
Sheath for introducing balloons to seal and lock a sheath part to an internal human body wall using a slidably moveable assembly
A sheath configured to introduce a medical device into a human body directly through the chest cavity to an internal human structure, having a hollow center and first and second indentations at a predetermined depth radially within an exterior surface along the sheath, with first and second balloon material fixed to distal and proximate walls of each indentation; one inflation/deflation channel running from a proximal end to a position approximately intermediate the indentations; and valve apparatus receiving inflation fluid to separately feed each indentation to cause the balloon material to inflate, wherein the inflated first and second balloon material forms a sandwich to seal and lock a sheath part to the internal human body wall, and wherein the first and second balloon material and indentations comprise an assembly slidably moveable along the sheath configured to slidably move to communicate with the one inflation/deflation channel.
Medical device with ultrasound imaging transducer and slidably movable distal and proximal balloons over an inflation channel
An elongate medical device having an inflation channel and an exterior surface, an ultrasound imaging transducer at a distal end, first distal and second proximal balloons at a position intermediate a length within respective indentations in the elongate body, the balloons in an inflated state sealing the human organ wall at a point of human wall puncture and locking a part of the medical device in place, wherein the balloons and indentations comprise an assembly slidably moveable along the elongate body and are located within a radial cavity of a smooth external surface at a predetermined radial depth, such that in a first position the first distal balloon is located over the inflation channel and in a second position the second proximal balloon is located over the inflation channel.
Across the independent claims provided, the central inventive concept is an ultrasound-imaging elongate catheter/device and a chest-access sheath that includes first and second radially recessed indentations with first and second balloon material. The balloon portions are inflated using valve apparatus and a single inflation/deflation channel while a slidably moveable assembly shifts positions relative to the inflation channel, enabling the inflated balloons to sandwich an internal wall or organ lining, seal, and lock the device or sheath in place during use.
Stated Advantages
Configured to seal and lock the elongate body/catheter/sheath in place at the internal human wall or organ lining during use.
Configured to sandwich an internal human body wall and a body organ lining during use.
Valve apparatus enables separate feeding to separately inflate balloon material to seal and lock while using a single inflation/deflation channel.
Documented Applications
Direct access from an exterior surface to the interior of a patient via an internal wall or lining during use of the device.
A catheter configured for direct access from an exterior surface of a human body to an internal human body wall by a selected approach angle.
A sheath configured to introduce a medical device into a human body directly through the chest cavity to an internal human structure during use.
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