摘要:
Trokarsystem mit einem Trokar (10), der einen Trokardorn (12), eine Trokarhülse (14) und einen Ventilblock (16) aufweist, g e k e n n z e i c h n e t d u r c h eine rohrförmige Arbeitshülse (20) mit einem axial durchgehenden Innenkanal (24), in welchen der Trokar (10) in der Weise einsetzbar ist, dass die Trokarhülse (14) mit ihrem Außenumfang in dem Innenkanal (24) abgedichtet ist, dass die distale Spitze des Trokardorns (12) distal aus der Arbeitshülse (20) austritt und dass der Ventilblock (16) sich proximal außerhalb des Innenkanals (24) befindet, und mit wenigstens einem Arbeitskanal (26), der an der Arbeitshülse (20) ausgebildet ist und von einer proximalen Eintrittsöffnung (36) zu einer distalen Austrittsöffnung (38) verläuft.
摘要:
A grasping tool (20) for removing a stent from the body of a patient. The grasping tool has a grasping head (38) forming two jaws connected to each other and configured to be shifted between an open state and a closed state. Each jaw includes three portions having different thicknesses. The grasping tool is configured to obtain sufficient holding force between the jaws while requiring reduced operating force of the tool. A method for removing a stent from a patient is also disclosed.
摘要:
The present invention relates to an extraction device (10) for extracting foreign bodies from a patient, comprising a flexible extractor (11), a stiffening device (12) and connection means (13) for connecting the flexible extractor (11) to said stiffening device (12).
摘要:
A system for performing single port laparoscopic procedures includes a deployment frame and a plurality of tools. The tools are pivotally mounted on the frame and have end effectors which are translatably and rotatably disposed in the tool. A handle at the proximal end of the tool controls an end effector at the distal end of the tool. Movement of the tools relative to the frame is constrained so that they remain in a fixed geometric relationship which prevents the tools from interfering with each other during laparoscopic procedures.
摘要:
An instrument that facilitates bending with large degrees of articulation while maintaining ease of manufacturing for medical and surgical applications is discussed.
摘要:
Needles are provided including elongate tubular cannulas having proximal portions, distal portions, and cannula walls defining cannula lumens. A distal portion of an elongate tubular cannula may include a distal end, one or more apertures disposed through, and along a first length of, the cannula wall in a pattern enhancing flexibility relative to a second length of the cannula wall lacking the apertures, and a sealing member disposed on the apertures. The apertures impart enhanced flexibility to the needle for navigating through tortuous pathways.
摘要:
A medical insertion device (100) includes an elongated shaft (101) extending from a proximal end to a distal end and having flexibility sufficient for insertion through a working channel of an endoscope along a tortuous path. The elongated shaft includes a coil (102) extending from the proximal end to the distal end and having a channel (106) extending longitudinally therethrough and a braided portion (110) extending around a portion of the coil, the braided portion including a plurality of lines (112,114) wound together such that first (112) and second ones (114) of the lines intersect to enclose a predetermined angle therebetween, the angle being between 25 and 55 degrees.
摘要:
Surgical instruments and their methods of use are disclosed. In some embodiments, the surgical instrument may include a handle (4) and an elongated shaft assembly (6) extending distally from the handle. The surgical instrument may also include a fastener deployment system (15) for deploying fasteners (30) from the elongated shaft assembly including a reciprocating driveshaft (26) disposed within the elongated shaft assembly. The driveshaft may include an internal channel and at least one guide surface (136) shaped and arranged to maintain an orientation of at least one fastener in the channel of the driveshaft. In other embodiments, the fastener deployment system may include a follower (34) disposed within the elongated shaft assembly for displacing one or more fasteners within the elongated shaft assembly towards a distal fastener deployment position.
摘要:
Greifinstrument (1) mit zwei Maulteilen (2, 4), die über ein Drehgelenk (3) miteinander verbunden und durch Zusammendrücken (Z) zweier mit den Maulteilen (2, 4) verbundener Griffschenkel (12, 14) aufeinander zu beweglich und durch Auseinanderdrücken (A) der Griffschenkel (12, 14) voneinander weg beweglich sind, wobei der Griffschenkel (12) ein Biegegelenk (15) aufweist, durch das beim Zusammendrücken (Z) der Griffschenkel (12, 14) eine durch eine Nachgiebigkeit des Biegegelenks (15) begrenzte Kraft über den das Biegegelenk (15) aufweisenden Griffschenkel (12) auf das entsprechende Maulteil (2, 4) übertragen wird und das einen Richtungsanschlag (9) umfasst, wobei durch den Richtungsanschlag (9) beim Auseinanderdrücken (A) eine aufgeprägte Handkraft unmittelbar wirkt.