A surgical stapling device particularly suited for endoscopic procedures is described The device includes a handle assembly and an elongated body extending distally from the handle assembly The distal end of the elongated body is adapted to engage a disposable loading unit A control rod having a proximal end operatively connected to the handle assembly includes a distal end extending through the elongated body A control rod locking member is provided to prevent movement of the control rod until the disposable loading unit is fully secured to the elongated body of the stapling device

Surgical Stapling Apparatus

A surgical stapling instrument (1) comprises a body portion (2, 3), a handle (4) and a staple fastening assembly (8). The staple fastening assembly (8) includes a curved cartridge (10), which comprises at least one curved open row of staples, and a curved anvil (22), which is adapted to cooperate with the cartridge (10) for forming the ends of the staples exiting from the cartridge (10). The staple fastening assembly (8) is adapted to allow unobstructed access towards the concave inner faces of the cartridge (10) and the anvil (22). The cartridge (10) can be moved towards the anvil (22) from a spaced position for positioning tissue therebetween to a closed position for clamping the tissue. Preferably, a knife is contained within the cartridge (10) and is positioned such that there is at least one row of staples on at least one side of the knife.

Surgical stapling instrument

Newness and distinctiveness is claimed in the features of ornamentation as shown inside the broken line circle in the accompanying representation.

Display screen or portion thereof with graphical user interface

A surgical instrument can comprise a channel configured to support a staple cartridge and, in addition, an anvil pivotable between open and closed positions relative to the channel. The surgical instrument can further comprise a cutting member configured to incise tissue positioned captured between the staple cartridge and the anvil and, in addition, means for stopping the cutting member prior to a distal end datum, wherein the distal end datum can be defined by the distal-most staple cavity in the staple cartridge. In such embodiments, the incision within the tissue may not extend beyond the portion of the tissue that has been stapled.

Surgical stapling instrument with an articulatable end effector

A surgical severing and stapling instrument, suitable for laparoscopic and endoscopic clinical procedures, clamps tissue within an end effector of an elongate channel pivotally opposed by an anvil. An E-beam firing bar moves distally through the clamped end effector to sever tissue and to drive staples on each side of the cut. The E-beam firing bar affirmatively spaces the anvil from the elongate channel to assure properly formed closed staples, especially when an amount of tissue is clamped that is inadequate to space the end effector. In particular, an upper pin of the firing bar longitudinally moves through an anvil slot and a channel slot is captured between a lower cap and a middle pin of the firing bar to assure a minimum spacing. Forming the E-beam from a thickened distal portion and a thinned proximal strip enhances manufacturability and facilitates use in such articulating surgical instruments.

Articulating surgical stapling instrument incorporating a two-piece e-beam firing mechanism

(57) [Problem] To provide an apparatus having a magnetic position sensor. The present invention relates to an actuator having a magnetic field sensor (5), a rod-shaped component (3), particularly an element (M) for generating a magnetic field (4), and a position sensor for measuring a magnetic field strength angle of the magnetic field. For a device having a magnetic position sensor with analytical electronics (7) for linear displacement of the axis of the axis, the electric field angle signal determined by this sensor is used for the displacement path determination. The element generating the magnetic field (4) is an axially magnetized magnet casing (M) surrounding the rod-shaped component (3) of the actuator itself, which is fixedly connected to it and its displacement axis (z ) Can rotate with it.

Device provided with magnetic position sensor

This paper deals with power electronic drivers for LED strings. Due to the enormous progress recently achieved in the technology of light emitting diodes (LEDs) it can be expected that LEDs lighting will replace incandescent and halogen bulbs in general illumination in the near future. A LED light source typically consists of a series connection of single LED cells. It shows a similar behaviour like a zener diode. For efficiency reasons LED strings can not be supplied via series resistors but need switched mode power drivers with current control. Different standard DC-DC converter topologies are discussed which can be adapted to feed a constant current into a LED load. For future LED driver developments it has to be considered that LEDs can also efficiently be supplied by pulsating currents. This simplifies the converter and control design and reduces the number of components. Hence, different converter topologies are studied which are able to stabilise the average value of a pulsating output current. This also includes topologies with galvanic isolation. Resonant operating LED drivers seem to be specially suited for this task. Hence, a series resonant galvanic isolating LED driver is studied in detail. Under certain conditions this converter does not need a current sensor to stabilise the average current in the LED load. Finally, the features of different pulsating current waves are investigated concerning their peak, RMS and high frequency content.

Power driver topologies and control schemes for LEDs

The invention relates to a device with a magnetic position sensor comprising a field sensor ( 5 ) and analysis electronics ( 7 ) for linear displacements of a rod-shaped component ( 3 ), in particular the shaft of an actuator, with an element (M) generating a magnetic field ( 4 ) and a position sensor measuring the magnetic field strength angle of this field, the field angle signal determined by this sensor being used for displacement path determination. The element generating a magnetic field ( 4 ) is an axially magnetized magnet casing (M) which surrounds the rod-shaped component ( 3 ) of the actuator itself, is fixedly connected thereto and can rotate therewith about its displacement axis (z).

Magnetic position sensor for measuring linear displacement

The invention relates to a decentralized power generation system comprising a plurality of decentralized power generating units (11,12;13,14). In order to enable an optimized control of these power generating units while enabling at the same time a high security in the system, it is proposed that the system further comprises a plurality of DC/DC converters (31,32), each connected to another one of the power generating units for converting a current provided by the power generating units. The proposed system moreover comprises a DC bus (40) to which the DC/DC converters feed a respectively converted current. The proposed system moreover comprises at least one power receiving component (20) retrieving current from the DC bus, which power receiving component is physically separated from the DC/DC converters. The invention relates equally to a corresponding method.

Decentralized power generation system

The invention relates to a DC/DC converter for use in a decentralized power generation system. If a DC/DC converter is physically separated from a power receiving component and connected to such a power receiving component via a DC bus, a short-circuit on the DC bus may endanger the system and service personnel. In order to minimize such a risk, it is proposed that the DC/DC converter comprises a converting component for DC/DC converting a direct current supplied by a power generating unit and for supplying a resulting converted direct current to a DC bus, and that the DC/DC converter comprises in addition a control component arranged to monitor a voltage at the outputs of the DC/DC converter and to cause the converting component to enter a short-circuit protection mode if the monitored voltage lies below a predetermined voltage threshold. The invention relates equally to a corresponding system and to a corresponding method.

Matthias Wendt

Papers

Device provided with magnetic position sensor

Power driver topologies and control schemes for LEDs

Magnetic position sensor for measuring linear displacement

Decentralized power generation system

Dc/dc converter and decentralized power generation system comprising a dc/dc converter