摘要:
Computing systems, methods, and program products can support a closed retail network. A computing system can receive an inquiry from a first member entity of a retail network and identifying a product of interest. The system can use a datastore to determine if the product of interest is available for sale by a first member by determining if the product is available from a second member. If the product of interest is available for sale, the computing system can indicate that the product is available, receive data from the first member entity indicating that the product has been sold to a customer and including payment information, use the payment information to transfer funds from the customer, and initiate a distribution of the transferred funds to the first and second member entities. The system may consider distribution rules in determining if the product is available for sale by the first member.
摘要:
A balloon catheter (1) comprises a catheter (2) and a balloon (6) located on the distal end of the catheter. A pair of stimulating electrodes (15) for receiving a constant current stimulating signal when the balloon (6) is inflated with an electrically conductive medium and a plurality of sensing electrodes (16) for producing voltage response signals are located on the catheter (2). The voltage response signals are indicative of the values of the transverse cross-sectional area of the balloon (6) adjacent the sensing electrodes (16). A first lumen
摘要:
Apparatus (1) for relieving dyspnoea in an ambulatory exercising subject comprises a housing (3) to be worn on the subject, and within which a variable speed air blower motor (5) is located for delivering an air supply to the subject through a mouthpiece (10) at a pressure similar to average intrinsic positive end-expiratory pressure of the subject. A pressure transducer (25) in the mouthpiece (10) monitors the pressure during breathing cycles of the subject, and a control circuit (22) determines the average intrinsic positive end-expiratory pressure of the subject over five breathing cycles. The control circuit (22) operates the air blower motor (5) for delivering the air supply to the subject at a pressure similar to the determined average intrinsic positive end-expiratory pressure.
摘要:
The gas mixing apparatus provides the components of a breathing gas for mixing at approximately ambient atmospheric pressure, and regulates the pressure of a selected gas to approximately ambient atmospheric pressure for mixing with air at ambient atmospheric pressure. The gas mixing apparatus includes a piston disposed within a pump chamber. A flow limiting inlet controls introduction of a first selected gas such as oxygen for mixing with a second selected gas such as air. The pressure of the first selected gas is limited to an acceptable maximum pressure, so that even if a valve for admitting the first selected gas for mixing at ambient pressure fails, breathing gas will not be provided at an excessive pressure. A demand valve is alternatively provided for reducing the pressure of the first selected gas supplied before mixing, but a pressure sensor is also provided downstream of the demand valve for detecting failure of the demand valve, to shut off the supply of the first selected gas to prevent overpressurization.
摘要:
A balloon catheter (60) includes an elongated catheter member (63) and an inflatable balloon (65) located adjacent a distal end (5) of the catheter member (63). Band type measuring electrodes (7) located on the catheter member (63) within the balloon (65) include a pair of outer stimulating electrodes (8) and sensing electrodes (9) for measuring the cross-sectional area and volume of the balloon (65) by impedance planimetry measuring. A light emitting diode (20) is located on each measuring electrode (7) for emitting light so that the location of the balloon catheter, and in particular, the measuring electrodes (7) can be detected in a vessel (91) with a translucent wall within the body of a human subject. By capturing an image of the vessel and the light from the light emitting diodes (20) emanating through a translucent wall of the vessel by an imaging device (92) located within the human body externally of the vessel (91), the location of the balloon catheter and the electrodes (7) within the vessel can be determined.
摘要:
A micro-needle device comprising an active substance layer (3) having a plurality of active substance chambers (4) formed therein, a drive substance layer (9) having a plurality of drive substance chambers (10) formed therein and a needle support layer (5) having a plurality of micro-needles (6) extending therefrom. An activation layer (12) comprising a plurality of heating elements (14) for heating an expandable drive substance (11) located in the drive substance chambers (10) for in turn urging the second membrane (16) into the active substance chamber (4) for pressurizing and urging an active substance (2) therefrom through the corresponding micro-needle (6). A plurality of membrane accommodating recesses (25) extend into the needle support layer (5) for accommodating the first membrane (15) as the active substance in the corresponding active substance chamber (10) is pressurized. A puncturing member (33) with a piercing point (35) extends into each membrane accommodating recess (25). A barrier grating (41) extends across each active substance chamber (4) for preventing contact between the second membrane (16) and the corresponding puncturing member (33).
摘要:
A system (1) and a device (3) is used in a fundoplication procedure in order to avoid over-tightening of the fundus of the stomach when the fundus is being wrapped around the esophagus (7) adjacent the lower oesophageal sphincter (5). The device (3) comprises a catheter (8) having a primary balloon (12) located at a distal end (9) thereof which is inflatable with a saline solution by a primary pump (26). A pair of spaced apart primary stimulating electrodes (32) on the catheter (8) within the primary balloon (12) receive a stimulating current signal from a constant current signal generator (40) under the control of a microprocessor (43), which reads voltage signals from spaced apart primary receiving electrodes (35) on the catheter (8) in the balloon (12). The microprocessor (43) determines the diameter of the primary balloon (12) at locations adjacent the primary receiving electrodes (35), and an image (47) of the inflated primary balloon (12) is displayed on a visual display screen (48) along with corresponding diameter values of the primary balloon (12). The primary balloon (12) is located in the sphincter (5) and inflated with the saline solution until the sphincter (5) has been dilated to a desired diameter, which is observed on the visual display screen (45). As the fundus of the stomach is being wrapped around the esophagus (7) adjacent the sphincter (5) the diameter of the primary balloon (12) is observed so that the fundus is not over-tightened. A secondary balloon (50) on the catheter (8) is independently inflatable for simulating a bolus of food in the esophagus (7) so that the dilating response of the sphincter (5) can be determined by observing the image (47) of the primary balloon (12) and the diameter values thereof on the visual display screen (45).
摘要:
A method for producing a catheter (100) having a plurality of axially spaced apart electrodes (5) towards a distal end (4) of the catheter (100) comprises forming the electrodes (5) from a single sheet (110) of electrically conductive foil material by forming spaced apart slots (111) in the sheet material to define a plurality of spaced apart electrically conductive elements (114) extending transversely between spaced apart elongated connecting portion (112,113). The electrically conductive elements (114) subsequently form the electrodes (5), and are retained spaced apart by the connecting portions (112,113) until bonded to the catheter (100). Electrically conductive wires (10) electrically coupled to the electrically conductive elements (114) extend through an elongated slot (105) into and along an axial communicating bore (9) to a proximal end (3) of the catheter (100). Two pieces of double-sided adhesive tape (118) bonded to the electrically conductive elements (114) in turn bond the electrically conductive elements (114) to the catheter (100). After entering the wires (10) into the axial communicating bore (9) the electrically conductive elements (114) with the double-sided tape (118) are wrapped around the catheter (100) and are severed from the connecting portions (112,113). Free ends (115) of the electrically conductive elements (114) abut each other to form the electrodes (5) as band electrodes.
摘要:
Apparatus (1) for relieving dyspnoea in an ambulatory exercising subject comprises a housing (3) to be worn on the subject, and within which a variable speed air blower motor (5) is located for delivering an air supply to the subject through a mouthpiece (10) at a pressure similar to average intrinsic positive end-expiratory pressure of the subject. A pressure transducer (25) in the mouthpiece (10) monitors the pressure during breathing cycles of the subject, and a control circuit (22) determines the average intrinsic positive end-expiratory pressure of the subject over five breathing cycles. The control circuit (22) operates the air blower motor (5) for delivering the air supply to the subject at a pressure similar to the determined average intrinsic positive end-expiratory pressure.
摘要:
A method and apparatus for determining the volume of a pouch formed in a stomach during bariatric surgery comprises a balloon catheter having an inflatable balloon located at a distal end of a catheter for locating in the stomach. A pair of spaced apart stimulating electrodes are located on the catheter within the balloon and a plurality of spaced apart sensing electrodes are located on the catheter between the stimulating electrodes. The balloon in the stomach is inflated by a saline solution to define the interior of the pouch. By applying a constant current signal to the stimulating electrodes, the volume of the pouch is determined from signals read from the sensing electrodes.