138results about "Urethrae" patented technology

Systems, devices, and methods are provided for retrieval of an implant from the prostatic urethra. Embodiments of retrieval systems can include a device for insertion into the patient and a proximal control device for use in grasping a portion of the implant and withdrawing the implant into a lumen of the retrieval system.

Devices and methods for deploying an implant in a patient's body comprises an elongate delivery tube having an inner element comprising an imaging head, an intermediate element comprising implant retainer formations and an outer element comprising an outer sheath, the inner and outer elements being retractable relative to the intermediate element. A handle at a proximal end of the delivery tube contains a hub assembly comprising hubs of the inner element, the intermediate element and the outer element. A hub carriage that is movable longitudinally within the handle with respect to the intermediate element hub supports the hubs of the inner element hub and the outer element for movement with the hub carriage to retract the inner and outer elements relative to the intermediate element.

An implant is for the prostatic urethra of a subject, the implant including a first frame being closed-shaped, the first frame includes two longitudinal sections; a second frame being closed-shaped, the second frame includes two longitudinal sections, wherein a mid-portion of one of the longitudinal sections of the first frame is connected in at least one of: directly and indirectly, to a mid-portion of one of the longitudinal sections of the second frame; and a third frame being distinct from the first frame and the second frame, the third frame includes a first arm section joined to the first frame, and a second arm section joined to the second frame, the first arm section and the second arm section extend such to be joined together in an apex portion.

The disclosed technique relates to systems and methods for relieving a prostate enlargement (e.g., as a result of benign prostatic hyperplasia), in general, and to systems and methods for enlarging the prostatic urethra and for anchoring the median lobe of the prostate.

Systems, devices, and methods are provided for the delivery of an implant into the prostatic urethra. Embodiments of delivery systems can include a delivery device for insertion into the patient and a proximal control device for use in controlling release of the implant from the delivery device.

The disclosure relates to apparatus and methods for managing a shape of a junction between a bladder and urethra, for example, to promote urinary continence after a prostatectomy.

A stent is disclosed that is configured to maintain patency of the prostatic urethra despite an enlarged prostate. The stent can include a handle that, in an undeflected position, is disposed outside of the flow path of the stent. When the handle is pulled, the handle can deflect to generally aligned with a central axis of the stent. A capture device is disclosed that includes a tapered tip to navigate a working channel of a delivery device and a hook that can capture the stent handle and be moved into a tube to retain the stent handle to facilitate maneuvering of the stent in and out of the working channel of the delivery device. A loading adapter with a tapered port is disclosed that can be disposed on the delivery device to distribute compressive forces applied by the port on the stent during loading into the working channel.

It is an object of the disclosed technique to provide methods and systems for a prostatic urethra implant for treating prostate enlargement when both the lateral lobes and the median lobe enlarge

An implantable biocompatible expander suitable for implantation into a urinary duct, comprises an elongated sinusoidal ring comprising at least two proximal prongs and at least two distal prongs, wherein the expander is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander is configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

Aspects of the present invention relate to a method for locating an expandable implant for treating BPH within the prostatic urethra of a patient. The delivery device comprises an inner tube and an outer sleeve moveable relative to the inner tube between a stored position and a deployed position. The outer sleeve surrounds the inner tube to define an annulus therebetween and the expandable implant is retained within the annulus when the outer sleeve is in the stored position.

The present invention provides constructs including a tubular biodegradable polyglycolic acid scaffold, wherein the scaffold may be coated with extracellular matrix proteins and substantially acellular. The constructs can be utilized as an arteriovenous graft, a coronary graft, a peripheral artery bypass conduit, or a urinary conduit. The present invention also provides methods of producing such constructs.

A delivery device for positioning an implantable expander to a target location in a prostatic urethra. An implantable biocompatible expander suitable for implantation into a urinary duct is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander may be configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

Systems, devices, and methods are provided for the delivery of an implant into the prostatic urethra. Embodiments of delivery systems can include a delivery device for insertion into the patient and a proximal control device for use in controlling release of the implant from the delivery device.

A device for deploying an implant in a patient’s body comprises an elongate delivery tube 36 with tube elements in concentric relation in radial outward succession. The tube has an inner element compr

Aspects of the present invention relate to a delivery device for locating an expandable implant for treating BPH within the prostatic urethra of a patient. The delivery device comprises an inner tube and an outer sleeve movable relative to the inner tube between a stored position and a deployed position. The outer sleeve surrounds the inner tube to define an annulus therebetween and the expandable implant is retained within the annulus when the outer sleeve is in the stored position.

Graft for use in urethral reconstruction comprising an umbilical vein The present invention relates to a graft for use in urethral reconstruction having a tubular shape comprising a lumen whose cross-section is circular or substantially circular and cannot be collapsed, or having a partially tubular shape that cannot be collapsed, said graft comprising at least one umbilical vein or a segment of umbilical vein arranged in such a way that the vascular epithelium is oriented towards the lumen when it has a tubular shape or towards the inner face of the curvature when it has a partially tubular shape. Figure for abstract: [Fig. 1]

The present invention relates to a stent delivery device having: a first support rod into which a first movable body is inserted; a fixed magnet; and a second support rod into which a second movable body is inserted, wherein a first driving magnet included in the first movable body and a second driving magnet included in the second movable body rotate relative to each other by means of the control of an external magnetic field at a predetermined angle around an axis in a first direction with respect to the fixed magnet, thereby separating a first coupling piece and a second coupling piece from a first coupling groove and a second coupling groove and enabling a stent to unfold.

An implant with one or more sensors to measure fluid and tissues of the patient. The sensor may comprise a mechanical sensor configured to measure growth of a tissue such as BPH or a tumor. Alternatively or in combination, the implant may comprise one or more electrodes to stimulate tissue related to urinary urgency or male sexual function.

The invention relates to a device for draining urine from the bladder of a patient, comprising a retention component to be placed in the bladder and urethra and a retractable insertion aid of tubular or hose-like construction, which is placed in the retention component and is easy to insert or pass through the urethra, the inner lumen of the insertion aid offering the possibility of applying a lubricating and lumen straightening substance into the urethra, wherein a storage container for accommodating a preferably gel-like substance can be mounted on the proximal end of the insertion aid, the substance being able to be applied from an opening at the tip of the catheter through the insertion aid into the urethra without backflow into the proximal gap between insertion aid and catheter; furthermore, different embodiments of the device are described, as well as a method which not only enables the process of hole cover and cleaning preparation for the introduction of the catheter to be carried out by hand, but also allows the insertion of the catheter into the bladder to be carried out by guiding with only one hand of the user.

Disclosed are devices and methods for managing and / or treating bodily tissue obstructing a hollow body lumen, including prostatic lobe tissue obstructing the urethra, for example, health conditions including benign prostatic hyperplasia (BPH), bladder outlet obstruction (BOO), benign prostatic obstruction (BPO), and related lower urinary tract symptoms (LUTS). A retrieval sheath having an elongate shaft member with at least one region of altered flexibility configured to compress the implant to a reduced profile for removal from the patient's body.

A catheter for deploying an implantable expander in a urethra. An implantable biocompatible expander suitable for implantation into a urinary duct is resiliently deformable from a relaxed radially expanded orientation to a radially contracted orientation suitable for transluminal delivery through the urinary duct. The expander may be configured to exert an outward radial force against a wall of the urinary duct when in-situ within the urinary duct. In particular, the expander is suitable for treatment of benign prostatic hyperplasia and configured for implantation into the prostatic urethra between, and substantially spanning the prostatic urethra between, the bladder neck and external sphincter.

Some embodiments of the invention advantageously leverage the expansion of the prostatic urethra using adjustable lumen tension rings (ALTRs) of desired sizes to control and improve flow throughout the range of the urethra. As such, some embodiments include tension ring(s) or cylinders that sits either inside or outside the prostatic wall and is at least partially within the lumen and / or is partially or fully anchored, attached, adhered, or otherwise held in place with respect to the bladder or other locations within the urethra and / or elsewhere in the urethra. The expansion of the lumen can be pre-configured based on pre-operative metrology of the prostatic urethra to a customized and adjustable fit across the various zones within the urethra and based on the patient specific and evolving needs.

An exemplary medical device may include a stent that includes a radially expanding tubular framework having a radially outer surface, a radially inner surface, a first end region, a second end region, an intermediate region positioned between the first end region and the second end region, and a lumen extending from the first end region to the second end region. A first flange structure may be positioned near the first end region, and a second flange structure may be positioned near the second end region. One of the first end region or the second end region may include a third flange structure.

Improved urinary catheters are described. One example urinary catheter includes a catheter shaft with an internal lumen, extending between a distal discharge opening and a proximal drainage opening, arranged at a proximal tip of the catheter shaft. An overcoat layer encircles a portion of the catheter shaft, forming a closed deformable fluid filled cavity intermediate the overcoat layer and the outer surface of the shaft. The overcoat layer is elastically deformable to allow for movement of the fluid within the cavity during deployment. At least a portion at the proximal end is arranged to be compressed to a smaller diameter during insertion, and upon continued insertion of the catheter shaft through the urethra into at least the bladder neck, arranged to expand back toward a greater diameter, as the fluid is caused to flow toward the proximal end of the fluid filled cavity.

It is an object of the disclosed technique to provide methods and systems for a stent device, such as a prostatic urethral implant, for treating prostate enlargement and a constriction of the prostatic urethra while also maintaining the bladder neck and internal urethral sphincter unobstructed.

A stent is disclosed that is configured to maintain patency of the prostatic urethra despite an enlarged prostate. The stent can include a handle that, in an undeflected position, is disposed outside of the flow path of the stent. When the handle is pulled, the handle can deflect to generally aligned with a central axis of the stent. A capture device is disclosed that includes a tapered tip to navigate a working channel of a delivery device and a hook that can capture the stent handle and be moved into a tube to retain the stent handle to facilitate maneuvering of the stent in and out of the working channel of the delivery device. A loading adapter with a tapered port is disclosed that can be disposed on the delivery device to distribute compressive forces applied by the port on the stent during loading into the working channel.

To create an implant that allows for easy and reliable treatment of the bladder neck. [Solution] This is achieved by an implant having a pressurizing means structure for expanding the bladder neck of a person, particularly a removable implant. This pressurizing means structure applies local pressure to the tissue of the bladder neck. The pressurizing means structure may be connected to a retaining means for operation. This retaining means may be a wire, thread, or rod, and the retaining means is used to insert the implant or pressurizing means structure into the bladder neck via the urethra, and, if necessary, to retrieve the pressurizing means structure from the patient's body after the treatment is completed.

Embodiments of a Urological implant include an implant with an elongated body having a longitudinal axis. Optionally longitudinal ribs symmetrically oppose each other and are connected to elongated body. The longitudinal ribs are optionally elastically shiftable between a collapsed state and an expanded state relative to the spinal longitudinal axis, in order to retract or / and support periurethral tissue. Optionally the system includes an implant extraction handle. The extraction handle is optionally positioned proximally to the elongated body and connected to the longitudinal rib and subject to a pulling force to facilitate and / or force approximation of the longitudinal supports to the longitudinal axis. In some embodiments, an implant body includes longitudinally spaced arched members, interconnected via arch ends sequentially along a length of a first and second longitudinal rib. Optionally the arched members are elastically bendable to facilitate elastic contractibility of the implant body under a transverse compressive force.

Implant (1, 10, 14) or catheter for insertion into the urethra (2) of a patient, with a through-opening (4) for the passage of urine, wherein a tube (5, 11, 15) made of an elastomer, having a lumen (6) for the passage of urine, is arranged in the through-opening (4), the wall thickness of which is so thin that the tube (5, 11, 15) can be set into vibration when urine flows through it.

A urethral endoscope for antegrade insertion of a. stent is disclosed. The urethral endoscope and method may provide optics at the time of inserting and positioning a urethrai stent. A deployment system is configured to hold simultaneously an implant and an optical system facilitating direct insertion of the implant into the desired area. In some embodiments, this facilitates insertion of the implant without first inserting the implant into the bladder and / or pulling the implant back from the bladder into the urethra. Some embodiments may facilitate insertion of an implant with a reduced number of insertions and removals of the endoscope and / or a. sheath thereof.