摘要:
A lavage unit (50) includes a handpiece housing a pump (560, 620) to which an irrigation tube (550) is connected. The pump includes a bellows (560, 620) defining a pump chamber (576, 624). When the bellows is reciprocated by a linkage (602, 608), the bellows draws irrigation fluid from the irrigation tube (540) into the pump chamber and then discharges the fluid out of the pump chamber through an outlet (590). The pump further includes a section (566, 628) formed from compressible or flexible material that defines a supplemental chamber (568, 630). The linkage (602, 608) is connected to said pump to alternatively compress the bellows forming the pump chamber (576, 624) and the material forming the pump supplemental chamber (568, 630). During the movement of the linkage a valve (582, 638) located between the pump chamber and the supplemental chamber reciprocates with the linkage.
摘要:
Delivery systems include a delivery instrument and a delivery device removably attached to the delivery instrument. A plurality of actuators are operable to position an opening of the delivery device with respect to the target site. A material supply system supplies the material to the delivery device. A navigation system tracks the target site and the opening as the target site moves during the procedure and as the opening moves during the procedure. A controller controls movement of the opening and/or flow rate of the material to achieve desired delivery of the material at the target site using various methods.
摘要:
The present invention relates to devices, systems and methods for spectrally identifying tissues and guiding the introduction of a probe, needle, and medical instrument into a body structure. The probe can further be used for precise delivery of therapeutic agents to selected regions of the body.
摘要:
Systems, method, and devices are disclosed that involve reconfiguring lumens or unblocking lumens relative to a blockage to maintain flow of reduced pressure to a subcutaneous tissue site. In one instance, a multi-lumen applicator includes an applicator body having a distal end and a proximal end and formed with a plurality of apertures for receiving fluid from the tissue site and for delivering reduced pressure, a first lumen fluidly coupled to the plurality of apertures, a first activation member having at least a closed position and a open position, and a second lumen fluidly coupled to the plurality of apertures but for the first activation member being in closed position. The configuration is such that when the first activation member is moved to the open position, the second lumen is fluidly coupled to the plurality of apertures. Other systems, methods, and devices are disclosed.
摘要:
A method of monitoring a bone fracture in an individual. The method comprises the steps of: measuring a first parameter indicative of the load on said bone fracture; measuring a second parameter indicative of the activity level of said individual; obtaining a plurality of values for said first and second parameters; correlating said values to determine a measure of bone fracture condition; monitoring a change in said correlation over time; and determining a measure of the change in bone fracture condition over time. A bone fixation system implements this method of monitoring a bone fracture in an individual. The method and system provide a more accurate and reliable measure of bone fracture condition and of the progression of healing of the bone fracture.
摘要:
Systems, method, and devices are disclosed that involve reconfiguring lumens or unblocking lumens relative to a blockage to maintain flow of reduced pressure to a subcutaneous tissue site. In one instance, a multi-lumen applicator includes an applicator body having a distal end and a proximal end and formed with a plurality of apertures for receiving fluid from the tissue site and for delivering reduced pressure, a first lumen fluidly coupled to the plurality of apertures, a first activation member having at least a closed position and a open position, and a second lumen fluidly coupled to the plurality of apertures but for the first activation member being in closed position. The configuration is such that when the first activation member is moved to the open position, the second lumen is fluidly coupled to the plurality of apertures. Other systems, methods, and devices are disclosed.
摘要:
An apparatus for removing portions of bone marrow from a bone is provided. The apparatus includes a housing (12) and a hollow drive shaft (14) operable to engage a gear assembly (37). The hollow drive shaft includes a first end operable to penetrate the bone and a second end operable to allow retrieval of portions of bone and bone marrow. The apparatus also includes a removable trocar (19). The removable trocar includes an inner channel operable to convey portions of bone and bone marrow. The gear assembly is able to engage and rotate the hollow drive shaft. A motor (38) operable to drive the hollow drive shaft into the bone marrow by rotation of the hollow drive shaft and a power supply (39) and associated circuitry operable to power the motor are also included.
摘要:
An apparatus for removing portions of bone marrow from a bone is provided. The apparatus includes a housing and a hollow drive shaft operable to engage a gear assembly. The hollow drive shaft includes a first end operable to penetrate the bone and a second end operable to allow retrieval of portions of bone and bone marrow. The apparatus also includes a removable trocar. The removable trocar includes an inner channel operable to convey portions of bone and bone marrow. The gear assembly is able to engage and rotate the hollow drive shaft. A motor operable to drive the hollow drive shaft into the bone marrow by rotation of the hollow drive shaft and a power supply and associated circuitry operable to power the motor are also included.