64results about "Urethrae" patented technology

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.

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.

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.

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.

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.

The invention creates an implant with which a bladder neck can be treated in a simple and reliable manner. This is achieved by an implant, in particular a removable implant, having a pressure means structure for expanding the bladder neck of a person. This pressure means structure exerts local pressure on the tissue of the bladder neck. The pressure means structure can be connected to a holding means for handling. This holding means, which may be a wire or a thread or a rod, can be used to insert the implant or the pressure means structure through the urethra into the bladder neck and, if necessary, to retrieve the pressure means structure from the patient's body after the end of the treatment.

A device for maintaining patency of a prostatic urethra includes a stent having a proximal end, a distal end, and a passageway therebetween. The device includes longitudinal and angled struts and nodes, each longitudinal strut coupled to at least one angled strut at a corresponding node, the struts and nodes coupled to each other to form a plurality of cells, circumferentially adjacent cells forming stent regions. The stent includes a nose region, a body region, and a tail region. The stent is configured to expand from a compressed configuration to an expanded configuration within a bodily lumen. The stent includes a collapsibility gradient along its length such that it provides a nose region radial force at the nose region, a body region radial force at the body region, and a tail region radial force at the tail region, wherein the nose region radial force is less than the tail region radial force, and the tail region radial force is less than the body region radial force.

A catheter for deploying an implantable expander to a target location 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.

A device (100) having a proximal end (10) and distal end (20) for delivery of a graft sheet (450) for deployment and attachment to a target within a tubular vessel (400), wherein the device (100) comprises a delivery head (200) configured for passage through the tubular vessel (400) of the subject, wherein the delivery head (200) comprises: a holding element (220) comprising a slot (222) open at least at its proximal (10) end, configured for slidable receiving of and retention of the graft sheet (450) for presentation to the target; a coupling element (260) configured for slidable attachment to a delivery tube (310) of a tacker device, wherein the tacker device is configured to deliver and deploy a tack from a terminal distal (20) end of the delivery tube (310) for attaching the graft sheet (450) to a vessel lumen interior wall (404) of the tubular vessel (400) of the subject; wherein: the coupling element (260) is configured to rotate around a single axis (262) of rotation relative to the holding element (220); the single axis (262) of rotation is disposed in fixed relation to the holding element (220); and rotational movement of the coupling element (260) around the single axis (262) of rotation to a deployment position of the coupling element (260) directs a distal end (20) of the coupling element (260) towards the slot (222).

An implant with which a bladder neck can be treated in a simple and reliable manner. This is achieved by an implant, in particular a removable implant, having a pressure structure for expanding the bladder neck of a person. This pressure structure exerts local pressure on the tissue of the bladder neck. The pressure structure can be connected to a holding for handling. This holding, which may be a wire or a thread or a rod, can be used to insert the implant or the pressure structure through the urethra into the bladder neck and, if necessary, to retrieve the pressure structure from the patient's body after the end of the treatment.

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.

An implant with which prostates of different sizes can be treated is achieved by the fact that the length of a deployed implant is modifiable to a variable extent. Through the change of length of a stretched-out wire structure of the implant, the implant can be adapted individually to the patient anatomy and the outcome of treatment can thus be improved.

Systems, apparatus, and methods for delivering an implant into the prostatic urethra are provided. Embodiments of the delivery system may include a delivery device for insertion into a patient and a proximal control device for controlling the release of the implant from the delivery device.

A delivery device for image-assisted delivery of 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.

A stent for insertion into the lumen of an anatomical vessel or duct including a helical coil embedded in a polymer tube. The helical coil includes expandable part, which is able to be in a compressed or expended configuration. The polymer tube is radially rigid to prevent reduction of the diameter of the turns of the helical coil when the stent is twisted.

The invention discloses a self-adaptive urinary system narrow part expanding and supporting integrated instrument which comprises an outer tube and a balloon layer, the balloon layer is of a spirally compressed tubular structure in the initial state, and the top end of the outer tube is fixed to one end of the balloon layer in a butt joint mode through a connector structure; the connector structure comprises a liquid feeding connector correspondingly fixed to the end of the outer tube in a penetrating mode, a conveying guide wire is fixedly installed in the center of the top of the liquid feeding connector, a liquid guiding and conveying cavity of the balloon layer is filled with the conveying guide wire, a telescopic ball head is arranged at the top end of the conveying guide wire, and the telescopic ball head is connected with the conveying guide wire. According to the self-adaptive expanding and supporting integrated instrument for the narrow part of the urinary system, the expanding balloon function and the supporting skeleton function are integrated into one instrument, implantation is achieved after expanding, the operation steps are simplified, the operation time is shortened, and the pain of a patient and the medical cost are reduced.

A surgical medical device includes a rod portion and a support portion extending from the rod portion. The support portion has a first stretch segment, a second stretch segment, and a third stretch segment disposed between the first stretch segment and the second stretch segment. The surgical medical device has a control mechanism. The surgical medical device stretches or contracts the first stretch segment, the third stretch segment and the second stretch segment by the control mechanism.

A delivery tube for image-assisted positioning an implantable expander 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.

To provide an apparatus for monitoring an implantable device for urinary continence.SOLUTION: One or more sensors are incorporated onto one or more of an implantable device and a surgical tool used for placement and / or adjustment of the implantable device. The implantable device includes an adjustable membrane element for controllable coaptation of a body lumen, such as coaptation of a urethra as treatment for urinary incontinence. In various embodiments, the one or more sensors can be configured to detect information indicative of at least one of a shape of the adjustable membrane element, a position of the adjustable membrane element relative to the body lumen, or a shape of the body lumen.SELECTED DRAWING: Figure 23

A kit for an endo-urethral prosthesis includes a proximal portion (2) and a distal portion (4), comprising respective proximal and distal tubular portions (24, 46) configured to be arranged within a patient's urethra (7), and respective proximal and distal stents (21, 49) configured to anchor internally to a urethra-vesical lumen and urethra, respectively, the proximal and distal tubular portions (24, 46) having predetermined radial stiffness, and having, on opposite sides to the proximal and distal stents (21, 49), proximal and distal connection ends (29, 31) configured to fluid-tightly connect to each other forming a longitudinal duct (5) arranged to convey urine. In advantageous embodiments, the distal or proximal tubular portion (46, 24) is divided into a first distal or proximal tubular element (35, 25) and a second distal or proximal tubular element (45, 34) comprising the distal or proximal connection end (31, 29), wherein the first distal or proximal tubular element (35, 25) and the second distal (45) or proximal tubular element (45, 34) have respective mutual fluid-tight connection ends (37, 44), the second distal or proximal tubular element (45, 25) forming an intermediate part (3), preferably axially flexible, of the prosthesis. In this way, prostheses suitable for the many anatomical variations can be obtained by choosing the length of a single, preferably intermediate, part within the proximal and / or distal tubular portion (24, 46), at least one valve element (50, 150, 250) configured to elastically deform, when an opening differential pressure (P*) is exceeded, from a rest closed configuration to a forced open configuration, so that the valve element (50,150, 250) can open with an increase in abdominal pressure. In particular, a stopper element (156, 256) of an improved valve element (150, 250) includes resilient walls (155, 255) separated by through slits (157, 257) converging from a peripheral portion of the stopper element to a same convergence point (158,258) shifted from the central point of the valve element (150,250) by a distance (6) of preferably at least 0,02 mm.

The present invention provides constructs including a tubular biodegradable poly glycolic 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.

The invention relates to an implant by means of which the bladder neck can be treated in a simple and reliable manner. This is achieved by an implant, in particular a removable implant, having a pressure device structure for expanding the bladder neck of a person. The pressure device structure applies local pressure to the tissue of the bladder neck. The pressure device structure may be connected to a holding device for operation. The retaining device may be a wire, a yarn or a rod, and may be used to introduce the implant or the pressure device structure through the urethra into the bladder neck and to remove the pressure device structure again from the patient's body if necessary after the end of the treatment.

Apparatus (20) is provided for use with a guidewire (12). The apparatus includes a guide tube (22) having a guidewire-engaging portion (122) and a slit (28) extending proximally along a wall of the guide tube, from a distal end (32) of the tube, a proximal end (29) of the slit being located distally to a proximal end (30) of the tube. A first stent (52) surrounds the tube and is advanceable together with the tube into a lumen of a subject, the first stent being slidably advanceable off the distal end of the tube; and a second stent (54), proximal to the first stent, surrounding a proximal portion of the tube, and advanceable off the distal end of the tube into the lumen, and placed alongside the first stent subsequently to advancement of the first stent off the distal end of the tube. Other applications are also described.