摘要:
A foreign body retrieval device is disclosed. The device moves between an open position for receiving the foreign body and a closed position for capturing the foreign body. A novel method for retrieving a foreign body such as a stent is also disclosed.
摘要:
A female continence augmentor stops involuntary urine loss due to transient increases in bladder pressure but allows urine flow when automatically opened by transmitted bladder pressure during voluntary voiding. The augmentor improves coaptation and increases midurethral resistance to opening with a resilient mount releasably adhered adhesively to the body in position to prevent inadvertent urine loss. An intralumenal part on the mount has a resilient portion extending into the urethra for urging the dorsal midurethral wall in a dorsal direction for stretching and/or reshaping the midurethral lumen to an arc. The portion has a member located to engage the midurethral wall. A coaptation improver on the member engages with the adjacent midurethra. The improver carries biocompatible hydrophilic material adapted to coact with mucus and mucosa within the urethra. A coated biocompatible hydrophilic membrane can be the member with opposed generally rectangular major surfaces and is circumscribed by an edge. The hydrophilic membrane is bowed along the edge transverse between sides thereof for bearing against the inside of the midurethral walls. The membrane has a mesh of flexible polymer and an arc shape between the sides so the opposed major surfaces are concave and convex. Two struts can extend from the sides to the portion. A method of making the augmentor has the steps of forming the mount of resilient material. The resilient material adheres to the body to support the augmentor in position to prevent inadvertent urine loss through the midurethral lumen. The part on the mount extends into the urethra. Connecting the part to the mount and locating the member on the portion for placement relative to the mount intralumenally is a step. The method step of forming includes molding the mount of a polymer. The step of locating the member uses at least one or two struts. The method has the step of adding an adhesive to the mount and increasing coaptation of the portion with a material. A method of using the augmentor has the steps of inserting the part into the urethra so that the member is within the midurethral lumen and placing the mount adjacent to the urethral exit to retain the member therein. Applying resistance inside the urethra with the member by the portion is a step of using. Urging the dorsal midurethral wall in a dorsal direction and engaging the urethral wall, especially the midurethral wall to remove laxity therein are steps of using.
摘要:
A removable stent system and method for extraction of a removable stent from a target site is disclosed. The removable stent includes a removable stent having a collapsible end and a collapsing element configured for coupling with a removal tool. The collapsing element can be configured as a lasso or can be movable between two positions when deployed at a target site in vivo. The removable stent overcomes disadvantages and limitations of previous types of stents as well as overcoming complications during or following stent deployment in vivo. The removable stent further includes features that increase its ease of use and reduce the maneuvering required of devices or tools used to remove the stent. This then decreases the amount of effort required by the physician, the procedure time, and the level of discomfort experienced by a patient during the procedure.
摘要:
A device for treating leakage from an external orifice in the body of a patient which comprises a first member having a body-contacting first surface and an opposing second surface about an aperture, which first surface is attachable to the patient with said aperture positioned over said orifice, and a second member integral with said second surface, which second member comprises a valve mounted over said aperture, which valve has a closed position which prevents leakage of fluid through the device and an open position which allows fluid to flow through said aperture when desired, the closed and open positions being achievable without removing the device from the body of the patient.
摘要:
A design and method of manufacture are disclosed for a female continence augmentor device used to alleviate urinary incontinence. The female continence augmentor includes a mount formed of a resilient material, an intralumenal part carried on the mount and a resilient portion carried on the intralumenal part of device. The mount adheres to the female body about the urethral exit to support the female augmentor into position to prevent inadvertent urine loss. The intralumenal part of the device extends from the mount into the urethral lumen at least to the mid-urethra. In particular, the resilient portion of the intralumenal part extends into the urethra and is adapted to at least urge the dorsal urethral wall in the dorsal direction to stretch and/or reshape the mid-urethral lumen to have a more arcuate shape. Thus, the mid-urethral lumen in cross-section would preferably exhibit a crescent shape of smaller radius. As such, the female continence augmentor enables a patient to void voluntarily with normal muscle control and without requiring conscious action to operate the device. Following voiding, the continence augmentation function of the device resumes automatically thereby increasing urethral resistance to opening and preventing inadvertent urine loss.
摘要:
A device for treating leakage from an external orifice in the body of a patent which comprises a first member having a body-contacting first surface and an opposing second surface about an aperture, which first surface is attachable to the patient with said aperture positioned over said orifice, and a second member integral with said second surface, which second member comprises a valve mounted over said aperture, which valve has a closed position which prevents leakage of fluid through the device and an open position which allows fluid to flow through said aperture when desired, the closed and open positions being achievable without removing the device from the body of the patient.
摘要:
A pump assembly for a penile implant is provided having a mechanism that prevents spontaneous inflation of the cylinders implanted within the patient. The preventative mechanism includes a switching mechanism for moving a valve into either a closed or an open position. When closed, the locking valve prevents fluid flow in an adverse direction. While open, the pump functions normally allowing the cylinders to be inflated.
摘要:
An apparatus for delivering laser energy to a target through a radiation-transmitting waveguide having a distal end terminating in a tip which is in contact with the target during delivery, while protecting the tip from heat damage, which apparatus comprises a waveguide for transmitting laser radiation and having a distal end terminating in a tip adapted to be placed in contact with the target to deliver laser energy directly to the target at the site of contact, and means for delivering a controlled small amount of liquid to the target adjacent to the tip, which small amount is just sufficient to limit the temperature at the target to not more than the failure temperature of the tip. An apparatus assembly for performing ILC incorporating a waveguide and a method for protecting the tip of a waveguide from damage is also disclosed.
摘要:
A needleless injector including a body at a proximal end, a shaft extending distally from the body, at least one injection orifice at a distal end of the shaft in fluid communication with a fluid chamber at the proximal end, a pressure source in communication with the fluid chamber, and a tissue tensioner located at the distal end of the shaft proximal to the injection orifice, wherein the distal end including the tissue tensioner and injection orifice is positionable within a urethral lumen so that when the tissue tensioner is deployed, tissue of the urethra is tensioned at a location for injection of fluid from the injection orifice into the tissue of the urethra.
摘要:
An anastomosis device providing increased functionality, reliability and safety through the use of designs addressing potential puncture of an inflation balloon being used to hold and approximate tissue. The anastomosis device can include bladder retention structures configured to engage and retain tissue without pointed or sharpened surfaces that can rupture the inflation balloon. The anastomosis device can include a reinforced or otherwise protected inflation balloon to resist puncturing by a bladder retention structure. The anastomosis device can include a catheter wall profile selected to physically prevent bladder retention structures from being forcibly bent back so as to avoid potential contact with and puncture of the inflation balloon. The anastomosis device can include a catheter funnel with an internal spring for preventing kinking of the catheter lumen while providing for flexibility and stretch of the funnel to absorb pulling or shock force which can rupture the inflation balloon.