摘要:
Apparatus for manipulating the uterus and/or cervix of a patient, the apparatus comprising:an elongated shaft having a proximal end and a distal end;an annular rim connected to the distal end of the elongated shaft; anda projection extending distally from the annular rim, the projection being coaxial with the annular rimand having a helical thread on its outer surface.
摘要:
A medical device allows movement control of a distal end portion of the medical device and is adapted for one-handed operation. The medical device is capable of omni-directional control of the distal end portion of the device. The device has an elongated member including a deflectable portion at a distal end portion of the elongated member. The device also has a control portion disposed on the elongated member. This control portion can be a handle for one-handed use by an operator of the medical device. The control portion comprises an elastic element and a flexible element. Angular movement of a first portion of the control portion with respect to a second portion of the control portion results in amplification of that angular movement in the deflectable portion of the device.
摘要:
In accordance with one aspect of the invention, a method is provided in which post-surgical adhesions at a surgical site in a patient are inhibited. The method includes topically applying a liquid composition comprising a hydrophobic species, which has a melting point above normal body temperature, to tissue at the surgical site in an amount effective to inhibit the formation of adhesions during healing.
摘要:
An ablation device, comprises a first tubular element and a first electrode which, when in an insertion configuration, is received within the first tubular element, the first electrode being deployable from the first tubular element to anchor in a target portion of tissue at a first electrode operative position in combination with a second electrode which, when in the insertion configuration, is received within the first tubular element, the second electrode being deployable from the first tubular element to anchor in the target portion of tissue at a second electrode operative position separated from the first electrode operative position, the second electrode being deployable independently of the first electrode and an insulating element movable relative to the first electrode to insulate selected portions of the first electrode. The device is employed to ablate first and second portions of tissue.
摘要:
A device for treating tissue comprises an enlongate probe and a light delivery unit illuminating a target area with light within a first wavelength band selected to enhance identification of target tissue in combination with an ultrasound crystal mounted at a distal end of the probe, the crystal being stimulated to treat target tissue identified using the light delivery unit.
摘要:
A tissue ablation device comprises first and second electrodes of opposite polarities, the first electrode being mounted to a first elongated member for movement relative to the second electrode for separation therefrom by a desired distance. A method of ablating a tissue comprises inserting first and second electrodes to desired initial positions relative to a tissue mass to be ablated and applying electrical energy to the first and second electrodes to ablate a first portion of tissue between the first and second electrodes in combination with the step of applying electrical energy to desired second positions separated from the desired initial positions by a distance selected to transfer electrical energy around the first portion of tissue through a second portion of tissue to be ablated, the second portion of tissue surrounding the first portion of tissue.
摘要:
In accordance with one aspect of the invention, a method is provided in which post-surgical adhesions at a surgical site in a patient are prevented or inhibited. The method comprises topically applying a liquid composition comprising a hydrophobic species, which has a melting point above normal body temperature, to tissue at the surgical site in an amount effective to prevent or inhibit the formation of adhesions during healing. Application of the liquid composition results in the formation of a solid adhesion barrier layer on the tissue. Moreover, the properties of the hydrophobic species are such that the adhesion barrier sublimes in vivo after the surgical site is closed. In another aspect, A medical device that comprises first and second lumens, wherein the medical device is configured to deliver a first fluid medium through the first lumen at a temperature above normal body temperature and to concurrently or sequentially deliver a second fluid medium through the second lumen at a temperature below normal body temperature.
摘要:
In one embodiment, an apparatus includes a first body having a proximal end and a distal end and defining a lumen, and a second body defining a second lumen. The first body is disposed within the lumen of the second body. The lumen of the first body is configured to receive a medical device for performing a medical procedure within at least a portion of an eye. The second body includes a sharpened distal end configured to penetrate a surface of the eye. A plurality of illumination fibers is disposed between the first body and the second body. In some embodiments, the lumen of the first body and the lumen of the second body are coaxial. In some embodiments, the sharpened distal end includes an angled surface.
摘要:
A tissue ablation device comprises first and second electrodes of opposite polarities, the first electrode being mounted to a first elongated member for movement relative to the second electrode for separation therefrom by a desired distance. A method of ablating a tissue comprises inserting first and second electrodes to desired initial positions relative to a tissue mass to be ablated and applying electrical energy to the first and second electrodes to ablate a first portion of tissue between the first and second electrodes in combination with the step of applying electrical energy to desired second positions separated from the desired initial positions by a distance selected to transfer electrical energy around the first portion of tissue through a second portion of tissue to be ablated, the second portion of tissue surrounding the first portion of tissue.
摘要:
A balloon dilatation catheter including a catheter shaft having a proximal end and a distal end with an inflatable balloon secured thereto. The balloon has a cylindrical section having a first end, a first tapered section of the balloon gradually tapering from a first end adjacent the first end of the cylindrical section to a second end, and a second tapered section adjacent the first tapered section. The second tapered section tapers from a primary end adjacent the second end of the first tapered section to a secondary end. The first tapered section has a first taper angle with respect to the catheter shaft and the second tapered section has a second taper angle with respect to the catheter shaft, the first taper angle being smaller than the second taper angle.