摘要:
In some aspects, a surgical system for taking advantage of capacitive coupling is presented. The surgical system may include: a monopolar energy generator; a surgical instrument configured to transmit electrosurgical energy through the electrode to tissue of a patient at a surgical site; and at least one detection circuit configured to: measure an amount of conductivity in a return path of the electrosurgical energy; determine that the amount conductivity in the return path falls below a predetermined threshold; and transmit a signal to cause the monopolar generator to increase current leakage in the surgical system by increasing alternating current frequency in the electrosurgical energy generation. The monopolar energy generator may further include a sensor configured to determine that a monopolar energy circuit is completed by detecting that the current leakage has reached a ground terminal in the monopolar energy generator.
摘要:
The disclosure provides a method of manufacturing a flexible circuit electrode assembly and an apparatus manufactured by said method. According to the method, an electrically conductive sheet is laminated to an electrically insulative sheet. An electrode is formed on the electrically conductive sheet. An electrically insulative layer is formed on a tissue contacting surface of the electrode. The individual electrodes are separated from the laminated electrically insulative sheet and the electrically conductive sheet. In another method, a flexible circuit is vacuum formed to create a desired profile. The vacuum formed flexible circuit is trimmed. The trimmed vacuum formed flexible circuit is attached to a jaw member of a clamp jaw assembly.
摘要:
In certain embodiments, an apparatus includes a stacked array of discs electrically coupled together where each disc includes an electrical component. In certain embodiments, a minimally-invasive medical device includes a stack of transducer platforms positioned within the minimally-invasive medical device. Each platform includes a plurality of electrical components.
摘要:
Various embodiments of the present disclosure can include a medical device assembly. The medical device assembly can comprise an elongate hollow cylindrical body that extends along a longitudinal axis. A distal cap portion can extend along the longitudinal axis. A proximal end of the distal cap portion can be connected to a distal end of the elongate hollow cylindrical body. A wire management port can be defined in the distal cap portion.
摘要:
Electrosurgical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to the feed cable.
摘要:
Aspects of the present disclosure include an attachable power and control system to supply energy to electrodes of a wiping electrode coagulation system of a surgical device. A surgical device includes electrodes at an end of effector to aide in sealing during various surgical procedures. During the procedure, the surgeon may wipe the surgical site with the end effector, causing the electrodes to touch the fractured area. Electrosurgical energy may be applied to the electrodes during the wiping, causing coagulation of smaller vessels. The attachable power and control system may be configured to slide over the shaft of the surgical device. The power and control system also may be configured to supply power to the electrodes and to control when energy is applied to the electrodes, based in part, for example, on measuring a distance or angle of the opening of the jaws at the end effector.
摘要:
본 발명은 고주파 열 치료용 바이폴라 전극에 관한 것으로, 더욱 상세하게는, 외주면에 제1,2결합홈이 미리 정해진 간격으로 떨어져 나사선 형태로 형성되고, 내부에 냉각관에서 공급된 냉각수가 순환되는 냉각순환로가 형성된 원통형 몸체와, 원통형 몸체의 제1결합홈에 끼움 결합되면서 복수 회로 감겨져 고주파 발생기의 일측 단자에 연결되는 액티브 전극체와, 원통형 몸체의 제2결합홈에 끼움 결합되면서 복수 회로 감겨져 고주파 발생기의 타측 단자에 연결되는 패시브 전극체를 포함하여 이루어지는 것으로써, 하지 정맥류와 같은 혈관의 병변부위로 이동이 용이하면서, 시술시 병변부위 외의 주변 조직에 대한 열 손상의 위험을 감소시켜주는 효과가 있다.
摘要:
An electrosurgical instrument (1) includes an end effector (115) having first and second jaw members (150, 160) disposed about a longitudinal axis (z). The first and second jaw members (150, 160) include proximal portions (150a, 160a) defining a gap (G J ) therebetween and distal portions (150b, 160b) having first and second tissue contacting surfaces (152, 162), respectively, and shear edges at opposed sides (154, 164) of the first and second tissue contacting surfaces (152, 162). The end effector (115) is configured to selectively communicate electrosurgical energy between the first and second tissue contacting surfaces (152, 162) of the first and second jaw members (150, 160) upon actuation thereof. At least one of the first and second jaw members (150, 160) is movable relative to the other between an open position, a first approximated position in which the first and second tissue contacting surfaces (152, 162) are substantially opposed to each other, and a second approximated position in which the first and second tissue contacting surfaces (152, 162) are laterally offset with respect to each other.
摘要:
Die Erfindung betrifft ein Handinstrument, insbesondere ein Resektoskop (10), mit einem Schaft (11) und einem Handstück (12). Wenigstens ein Anschlusskabel (25) kann zur Versorgung mit elektrischer Energie und/oder wenigstens ein Anschlussschlauch (34, 35) zur Versorgung mit fluiden Medien dienen. Es ist eine lösbare Verbindung zwischen Handstück und Anschlusskabel (25) und/oder Anschlussschlauch (34, 35) mit einem ersten Verbindungsstück (26) am Handstück (12) und einem, mit dem ersten Verbindungsstück (26) korrespondierenden zweiten Verbindungsstück (27) am Anschlusskabel (25) und/oder Anschlussschlauch (34, 35) vorgesehen. Die Erfindung zeichnet sich dadurch aus, dass eine magnetische Verbindung zwischen dem ersten Verbindungsstück (26) und dem zweiten Verbindungsstück (27) ausgebildet ist.