摘要:
A clip applier having a handle at a proximal portion, an elongated portion extending distally of the handle, a jaw mechanism including a pair of jaws movable to a closed position to crimp a clip held therein, a clip feeder mechanism movable in proximal and distal directions, a camming mechanism and a puller mechanism movable in proximal and distal directions. The puller mechanism is operatively connected to the handle such that actuation of the handle a) moves the puller mechanism a first distance in the proximal direction; and b) moves the clip feeder mechanism a second distance greater than the first distance.
摘要:
An instrument for applying clips in surgery particularly suited for microsurgery with instrument chassis and cover joined to form housing supporting handle and clip handling components, the handle for squeeze and release action to develop linear reciprocation motion of fixed excursion, the clip handling components for feeding a stack of clips one-by-one into instrument clip crimping jaws for application at a surgical site, an anti-backup mechanism constraining handle action to full pull and release strokes, and an instrument lock-out mechanism to prevent instrument operation after last clip in stack is used. Clip handling components of magazine carrier, magazine, clip stack, clip pusher, pusher spring, and pusher spring shaft are inserted into instrument in upwardly open channel and secured by pusher spring cover.
摘要:
A clip applier having a handle at a proximal portion, an elongated portion extending distally of the handle, a jaw mechanism including a pair of jaws movable to a closed position to crimp a clip held therein, a clip feeder mechanism movable in proximal and distal directions, a camming mechanism and a puller mechanism movable in proximal and distal directions. The puller mechanism is operatively connected to the handle such that actuation of the handle a) moves the puller mechanism a first distance in the proximal direction; and b) moves the clip feeder mechanism a second distance greater than the first distance.
摘要:
A female urinary stress incontinence remedy in which endopelvic fascia attached to either side of the urethra is elevated and held in place by means of a pair of anchors comprised of upper and lower stays interconnected by suture and surgically positioned on either side of the urethra with the upper stay positioned above the rectus fascia and the lower anchor stay engaging the endopelvic fascia, exposed by aligned insisions in the vaginal wall.
摘要:
An evacuator particularly suited for irrigation and removal of tissue from a body cavity such as the bladder. The evacuator includes a positive displacement syringe with a hollow plunger for pumping a sterile solution into the bladder for irrigation and for withdrawing the solution and entrained tissue from the bladder and urethra. Internal valving controls the order of flow within the evacuator so that, as the solution circulates through the evacuator, tissue is filtered from the solution and captured in a collection container.
摘要:
An improved endoscopic instrument suitable for performing internal procedures through a trocar in which the instrument handle is provided with a control mechanism for rotating the instrument thereby enabling a surgeon to manipulate and utilize the instrument with one hand.
摘要:
The present invention is a hypodermic syringe pre-filled with a volume of a desired solution. A plug member is positioned within the hypodermic syringe in between the pre-filled fluid and the lumen of the syringe's cannula. The presence of the plug member within the hypodermic syringe separates the cannula from the pre-filled fluid thereby leaving the cannula unaffected by the presence of the fluid within the syringe. As the plunger of the hypodermic syringe is engaged, the pressure of the pre-filled fluid is increased. The fluid pressure acts upon the plug member, displacing the plug member when a predetermined fluid pressure is achieved. Once the plug member is displaced, the occlusion between the pre-filled fluid and the cannula is removed and the pre-filled fluid is free to flow through the lumen of the cannula.
摘要:
A trocar assembly of trocar tube and trocar obturator includes a seal comprising a sealing ring and a sealing valve positioned in the trocar tube housing in concentric relationship with the trocar obturator and its protective shield for sealing (i) the trocar obturator when interfitted with the tube, (ii) sealing endoscopic instruments when deployed through the tube in performing medical procedures, and (iii) the trocar tube remaining alone in a body cavity.
摘要:
A syringe and needle assembly having a piston that is formed to engage and retract the needle assembly into the syringe barrel. The piston includes a spring member that is elastically deformed by the attachment of the piston to the needle assembly. The spring member causes the needle assembly to be spring biased into a canted position so that, once retracted into the syringe barrel, the needle assembly cants to an inoperable position.