Patent number 8540666 is assigned to
The following quote was obtained by the news editors from the background information supplied by the inventors: "Many liver resection procedures are performed every year. For example, a liver may need to be resected to remove a tumor, a cancerous cell, or a diseased part of a liver. Liver resection surgery is a risky procedure because after the liver is resected, the remaining liver may bleed significantly due to the vascularity nature of the liver. In some cases, a patient may even die from significant bleeding after a liver resection procedure.
"In many medical procedures, balloons have been used to occlude blood vessels and aneurysms. However, balloons have not been used to occlude vessels within a liver during a liver resection procedure. This is because delivering a balloon within a target vessel inside an organ is difficult. In order to accurately position a balloon inside a patient, the balloon would need to be visualized using an imaging device such as an ultrasound imager. However, existing balloons are not made from a material that allows them to be clearly visualized using ultrasound. Sometimes, after the balloon is inflated with liquid, the balloon remains very difficult to be imaged with ultrasound. This is because liquid within the balloon is not echogenic, thereby preventing a clear ultrasound image of the balloon from being obtained.
"Sometimes, in order to aid a physician to visualize the balloon after the balloon has been placed in a patient's body, the balloon can include a radio-opaque marker secured thereto. The radio-opaque marker is then imaged using an imaging device located outside the patient's body. However, adding the radio-opaque marker to the balloon increases a manufacturing cost of the balloon. In addition, there is a risk that the radio-opaque marker may become detached from the balloon while the balloon inside the patient's body.
"Other medical devices also use radio-opaque markers to assist a physician in positioning and/or confirming a position of the devices. For example, the catheter used to deliver the balloon may also include a radio-opaque marker secured to a distal end of the catheter. During use, the radio-opaque marker at the catheter can be imaged using an imaging device, thereby allowing a physician to steer the catheter distal end to target area within a patient's body. However, the use of the radio-opaque markers in these device increases the manufacturing cost of these devices, and there is a risk that a marker may become detached from a device while the device is inside the patient's body."
In addition to the background information obtained for this patent, NewsRx journalists also obtained the inventors' summary information for this patent: "In accordance with one embodiment, a vessel occlusion apparatus includes an elongate shaft with an expandable member carried on a distal end portion of the shaft, the expandable member comprising a body defining an interior region, the interior region in communication with the fluid delivery lumen, the body comprising a wall having one or more embedded fluid pockets therein.
"In accordance with another embodiment, an elongate tubular delivery member is provided, the tubular member having a proximal portion, a distal portion, a lumen extending between the proximal and distal portions, and a wall defining at least a portion of the distal portion of the tubular member, the wall having one or more embedded fluid pockets therein.
"In accordance with yet another embodiment, a vessel occlusion system includes, in combination, an echogenic occlusive balloon apparatus and an echogenic delivery apparatus. The balloon apparatus comprises an elongate shaft having a fluid delivery lumen, and an expandable balloon carried on a distal end portion of the shaft, the balloon comprising a balloon body defining an interior region in communication with the fluid delivery lumen, the balloon body comprising a wall having one or more embedded fluid pockets therein. The delivery lumen comprises an elongate tubular delivery member having a proximal portion, a distal portion, a lumen extending between the proximal and distal portions and sized to accommodate insertion of the balloon apparatus there through, and a wall defining at least a portion of the distal portion of the tubular delivery member, the tubular member wall having one or more embedded fluid pockets.
"Other and further aspects and features of the embodiments will be evident from reading the following description of the embodiments."
URL and more information on this patent, see: Rioux, Robert; Sauvageau, David J.. Echogenic Occlusive Balloon and Delivery System. U.S. Patent Number 8540666, filed
Keywords for this news article include: Biotechnology Companies,
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2013, NewsRx LLC
Most Popular Stories
- Twitter Names Woman to Board
- NSA Tracks 5 Billion Cellphone Records a Day
- Nelson Mandela Dies After Momentous Life
- W.H. Corrects Itself on Unclegate
- Nelson Mandela Dead at 95
- Fast-Food Workers Want $15 an Hour
- Roybal-Allard Tours Gordon Brush Plant
- Pope Francis Says He'll Fight Child Sex Abuse
- Aspen Contracting Adding 300 Jobs
- Yemen Attack Kills 52