摘要:
A surgical access device for providing gas tight communication to an anatomical cavity which facilitates the insertion and use of surgical instruments while maintaining the anatomical cavity. The access device allows for the use of laparoscopic instruments in tight surgical locations without the need for a trocar or other supportive device. In addition, the surgical access device allows the use of non-laparoscopic instruments in a laparoscopic setting to add flexibility and improved sterility to an open surgery. Increased surgical instrument access and mobility within the anatomical cavity is achieved with a reduced need for insufflation. The access surgical device includes a flexible planer base with an integral opening for isolating and maintaining an open surgical incision. A hollow stem having an instrument seal is attached to the base over the incision. The stem also includes a valve for maintaining a positive gas pressure within the anatomical cavity.
摘要:
An access device having a single sheath is inserted into a body passage puncture, with an expandable member of the access device held to a minimum diameter. The expandable member is held to the minimum diameter using structure that does not increase the diameter of the access device, rather than a large-diameter external sheath. The structure for holding the expandable member to a minimum diameter can subsequently be removed from the lumen of the access device., once the expandable member has been expanded.
摘要:
A vein-branch accessing device includes at least one probe adapted for contacting a surface of a vein of the patient. The probe is further adapted for moving along the surface of the vein, to thereby guide the vein-branch accessing device over the surface of the vein and along the length of the vein, beneath the skin. The vein-branch accessing device further includes a vein branch indicator, which is adapted for indicating to an operator of the vein-branch accessing device that the probe has moved along the surface of the vein to a vein branch. The vein-branch accessing device further includes accessing structure, which is adapted for facilitating access to the vein branch. The accessing structure may include a port, which is adapted for accommodating either a clip or a clip applier therethrough. The clip is adapted for fitting around and occluding the vein branch, and the clip applier is adapted for severing the vein branch from the vein. The probe includes a vein bed separator having a shovel-shaped blade at an end thereof.
摘要:
The method according to the invention is a method for controlling the purging of a sélective catalytic réduction System (1) for a vehicle. The sélective catalytic réduction System (1) has a pump (4) for reducing agent (3), at least one supply line (5) supplying reducing agent (3) to an exhaust line (10) of the vehicle, and a purge fluid suction device. The method is characterized in that it involves determining a purge duration as a fonction of a state of fill of the supply line (5) prior to activation of the purge phase, and in that the method forther comprises the updating of the purge duration during purging.
摘要:
In general terms, embodiments of the present invention relate to methods and apparatuses for cleaning, grooming, and otherwise maintaining sand and sandy surfaces. For example, some embodiments of the present invention provide an apparatus for cleaning a sandy surface, where the sandy surface includes unsifted sand, and where the unsifted sand includes sand and unwanted material. In some embodiments, the apparatus includes: (a) one or more frames; (b) a conveyor carried by the one or more frames and including a first portion and a second portion, where the conveyor is configured to transport the unsifted sand from the first portion towards the second portion; (c) at least one paddle carried by the one or more frames and configured to direct the unsifted sand from the sandy surface towards the conveyor; and (d) a sifter carried by the one or more frames and configured to: (i) receive the unsifted sand from the conveyor; (ii) prevent the unwanted material from passing through the sifter; and (iii) allow the sand to pass through the sifter.
摘要:
Internally calibrated pH and other analyte sensors based on redox agents provide more accurate results when the redox active reference agent is in a constant chemical environment, yet separated from the solution being analyzed in such a way as to maintain electrical contact with the sample. Room temperature ionic liquids (RTIL) can be used to achieve these results when used as a salt bridge between the reference material and the sample being analyzed. The RTIL provides the constant chemical environment and ionic strength for the redox active material (RAM) and provides an electrolytic layer that limits or eliminates direct chemical interaction with the sample. A broad range of RAMs can be employed in a variety of configurations in such “Analyte Insensitive Electrode” devices.
摘要:
A depth and puncture control system for a blood vessel hemostasis system includes a blood vessel puncture control tip which, when positioned in the lumen of a blood vessel, can inhibit the flow of blood out of the puncture site. When used together with a pledget delivery cannula and a pledget pusher, the control tip and the delivery catheter can both inhibit blood loss out the puncture site and inhibit the introduction of pledget material and tissue fragments into the blood vessel. The system also includes a handle which releasably connects together the control tip, pusher, and delivery cannula to permit limited longitudinal motion between the control tip and the delivery cannula, and between the pusher and the delivery cannula.
摘要:
A cable including circuitry for asserting information to a user or external device and a system including such a cable. The cable can include conductors, a memory storing cable data, and circuitry configured to respond to a request received on at least one of the conductors by accessing at least some of the cable data and asserting the accessed data serially to at least one of the conductors (e.g., for transmission to an external device). Other aspects of the invention are methods for accessing cable data stored in a cable and optionally using the data (e.g., to implement equalization). The cable data can be indicative of all or some of cable type, grade, speed, length, and impedance, a date code, a frequency-dependent attenuation table, far-end crosstalk and EMI-related coefficients, common mode radiation, intra pair skew, and other information. The cable can include a radiation-emitting element and circuitry for generating driving signals for causing the radiation-emitting element to produce an appropriate color, brightness, and/or blinking pattern.
摘要:
A communication system including a transmitter, a receiver, and a serial link, in which encoded data (e.g., encoded video data and encoded auxiliary data) are transmitted from the transmitter to the receiver. The serial link can but need not be a TMDS or TMDS-like link. In typical embodiments, alternating bursts of encoded video data and encoded auxiliary data are transmitted over each of one or more channels of the link. Other aspects of the invention are transmitters for use in encoding data for transmission over a serial link, and methods for sending encoded data over a serial link. In accordance with the invention, the data to be transmitted are encoded using a subset (sometimes referred to as a selected set of code words) of a full set of code words. The selected set of code words is selected such that each stream of encoded data (comprising only such code words) transmitted over a serial link has a bit pattern that is less susceptible to inter-symbol interference (“ISI”) during transmission than is the bit pattern determined by a conventionally encoded version of the same data (comprising not only the selected set of code words but also other members of the full set). In general, the best choice for the selected set of code words selected from a full set of binary code words depends on the particular coding implemented by the full set. Typically, the selected set of code words includes words whose serial patterns (during transmission) have fewer contiguous zeros and ones (and thus are less susceptible to ISI during transmission) than do those code words in the full set that are not selected. In preferred embodiments in which the bits of the selected set of code words are transmitted over a serial link as sequences of rising and falling voltage transitions, the bit pattern of each transmitted stream of the selected set of code words implements DC balancing to limit the voltage drift over time.
摘要:
A cable including circuitry for asserting information to a user or external device and a system including such a cable. The cable can include conductors, a memory storing cable data, and circuitry configured to respond to a request received on at least one of the conductors by accessing at least some of the cable data and asserting the accessed data serially to at least one of the conductors (e.g., for transmission to an external device). Other aspects of the invention are methods for accessing cable data stored in a cable and optionally using the data (e.g., to implement equalization). The cable data can be indicative of all or some of cable type, grade, speed, length, and impedance, a date code, a frequency-dependent attenuation table, far-end crosstalk and EMI-related coefficients, common mode radiation, intra pair skew, and other information. The cable can include a radiation-emitting element and circuitry for generating driving signals for causing the radiation-emitting element to produce an appropriate color, brightness, and/or blinking pattern.