摘要:
A minimally invasive surgical instrument includes a housing and an outermost elongated shaft having an end effector operatively coupled to a distal end thereof. The outermost elongated shaft is releasably secured to a pincher within the housing of the instrument such that during the course of a surgical procedure, an appropriately dimensioned elongated shaft and suitable end effector may be interchanged as desired. The elongated shaft may have an adjustable length, and the end effectors of the elongated shaft may be interchangeable.
摘要:
Laser energy delivery devices and methods are provided. A laser energy delivery device for providing treatment to a subject may include a coupling adapted to couple to a laser energy generator. A sheath is coupled to the coupling, the sheath including a distal end adapted to be disposed in the subject. A plurality of transport members are carried by the coupling and the sheath, the plurality of transport members being adapted to receive laser energy at the coupling, transmit laser energy through the sheath, and deliver laser energy to the subject. A sensor is adapted to detect transmission of laser energy through at least one of the plurality of transport members.
摘要:
An electrosurgery probe comprises tip, mid-, and electrical contact segments. The mid-segment is a tube that is open at one end, closed at the other, and has an interior flow passage. An opening formed through the wall of the tube adjacent to the closed end of the mid-segment is in fluid communication with the interior flow passage. An electrosurgery system includes the electrosurgery probe and an electrosurgery handpiece. The handpiece comprises an elongate body segment and an exhaust cap attached to the body segment. A main flow passage extends longitudinally through the handpiece, and a second passage extends longitudinally through a distal portion of the body segment. In use, the probe is removably disposed in the handpiece such that the electrical contact segment is positioned within the second passage and the mid-segment opening is positioned within the exhaust cap and in fluid communication with the main flow passage.
摘要:
본 발명은 소형화가 용이하고, 공정이 간편하며, 재현성이 우수하도록 헤드의 구조가 개선된 카테터 및 그 제조방법을 개시한다. 본 발명의 일 측면에 따른 카테터는, 특히 신경차단용 카테터로서, 중공이 형성된 실린더 부재; 상기 실린더 부재에 장착되어 열을 발생시키는 하나 이상의 전극; 및 상기 실린더 부재에 인쇄되며, 상기 전극에 연결되어 상기 전극에 대한 전원공급경로를 제공하는 전원공급배선을 포함한다.
摘要:
A tissue removal system for extracting a tissue specimen from a patient is disclosed. The system has a retrieval bag, a first electrode, and a return electrode. The retrieval bag has a flexible container with an opening. The first electrode is coupled to an interior of the flexible container, and has a conductive wire with an exposure area, a first load-bearing area, a coating having a first active electrode surface area, and an impedance that is greater than an impedance of the conductive wire. The first active electrode surface area is less than the exposure area. The coating is configured to degrade during application of electrosurgical power and wherein the degradation expands the first active electrode surface area during the application of the electrosurgical power.
摘要:
A method and system for automated and semi-automated predictable, consistent, safe, effective, and lumen-specific and patient-specific cryospray treatment of airway tissue in which treatment duration is automatically set by the system following entry of patient information and treatment location information into the system by the user, and treatment spray is automatically stopped by the system when the automatically selected treatment duration has been achieved as determined by the system.
摘要:
Apparatus for use in surgeries to treat disorders of the ear, nose, and throat including a hand-held device and rotating blade assembly. The apparatus may be connected to a vacuum source. A method of use is also disclosed.
摘要:
A multi-functional electrosurgical plasma accessory having a handpiece and an extendable probe assembly. The extendable probe assembly has a shaft member, a tube, an electrode, a spacer and a collet. The shaft member and tube each may be formed of a plurality of structures assembled together, each may be of a single unitary design, or both together may be of a single unitary design. The shaft member has an interior channel, a distal end and a proximal end comprised of a neck portion at the distal end of the shaft member, a grip. The elongated portion of the shaft is movable within the spacer between a first position in which a portion of a distal end of the electrode extends out of the tube and a second portion in which the distal end of the electrode does not extend out of the tube.
摘要:
Embodiments of the present disclosure include a method for treating tissue. The method may include delivering a medical device through a channel of an endoscopic device, wherein the medical device may include an elongate member, a cap coupled to a distal end of the elongate member and having a cavity, and an electrically-conductive tool extending into the cavity of the cap. The method may also include extending a portion of the medical device out of the channel of the endoscopic device and to the tissue, drawing a portion of the tissue into the cavity of the cap, electrically activating the tool to pierce the portion of the tissue, and cutting the tissue by moving the medical device along a plane of the tissue.
摘要:
The present invention relates to a connecting element for connecting a fiber-optic light guide (20) to a light source (26) one time and detaching the fiber-optic light guide from a light source one time, comprising a housing (12) having a wall (14), which housing encloses a cavity (16), a fiber-optic light guide (20) that passes through the housing (12) and the cavity (16), a connecting piece (22) corresponding to a connecting section (28) of the light source (26) for establishing the connection to the light source (26), wherein the connecting section (28) can be reused after the detachment, and means (42) for preventing a repeated use, in a functionally appropriate manner, of the connecting element (10) and/or the light guide (20) on the basis of one or more selectable events.