Abstract: An apparatus for treatment of soft tissue includes a source of radiation, a handpiece which is adapted to transmit radiation emitted from the source of radiation to a region of soft tissue, resulting in irradiated soft tissue, said handpiece being positioned adjacent to or in contact with said soft tissue region, a grid element adapted to hold at least one temperature sensor in contact with or embedded in said region of soft tissue, and a microprocessor, which converts a signal from the at least one temperature sensor into a measure of damage produced in at least two components of the irradiated soft tissue, said components comprising at least one normal tissue component and at least one malignant, hypertrophic, diseased, or unwanted component.

Abstract: Disclosed herein are optical assemblies having thin, low profile shapes. These optical assemblies may be used with fiber coupled lasers and other light sources, including high power sources, to irradiate tissue at a wavelength suitable for inducing ablation or coagulation to a target depth, denaturation, thermal modification of a tissue, and/or preferential injury to a target tissue structure. Example optical assemblies can produce substantially uniform illumination patterns that are useful for treating superficial tissue, including the internal or luminal (e.g., esophageal) tissue. Some examples may have capability for cooling superficial tissue or skin, such as a detachable, reusable heat sink for active cooling without consumables, fluid pumps, or other cooling equipment.

Abstract: An apparatus for treatment of soft tissue includes a source of radiation, a handpiece which is adapted to transmit radiation emitted from the source of radiation to a region of soft tissue, resulting in irradiated soft tissue, said handpiece being positioned adjacent to or in contact with said soft tissue region, a grid element adapted to hold at least one temperature sensor in contact with or embedded in said region of soft tissue, and a microprocessor, which converts a signal from the at least one temperature sensor into a measure of damage produced in at least two components of the irradiated soft tissue, said components comprising at least one normal tissue component and at least one malignant, hypertrophic, diseased, or unwanted component.

Abstract: An apparatus for treatment of soft tissue includes a source of radiation, a handpiece which is adapted to transmit radiation emitted from the source of radiation to a region of soft tissue, resulting in irradiated soft tissue, said handpiece being positioned adjacent to or in contact with said soft tissue region, a grid element adapted to hold at least one temperature sensor in contact with or embedded in said region of soft tissue, and a microprocessor, which converts a signal from the at least one temperature sensor into a measure of damage produced in at least two components of the irradiated soft tissue, said components comprising at least one normal tissue component and at least one malignant, hypertrophic, diseased, or unwanted component.

Abstract: Disclosed herein are optical assemblies having thin, low profile shapes. These optical assemblies may be used with fiber coupled lasers and other light sources, including high power sources, to irradiate tissue at a wavelength suitable for inducing ablation or coagulation to a target depth, denaturation, thermal modification of a tissue, and/or preferential injury to a target tissue structure. Example optical assemblies can produce substantially uniform illumination patterns that are useful for treating superficial tissue, including the internal or luminal (e.g., esophageal) tissue. Some examples may have capability for cooling superficial tissue or skin, such as a detachable, reusable heat sink for active cooling without consumables, fluid pumps, or other cooling equipment.

Abstract: Disclosed herein are optical assemblies having thin, low profile shapes. These optical assemblies may be used with fiber coupled lasers and other light sources, including high power sources, to irradiate tissue at a wavelength suitable for inducing ablation or coagulation to a target depth, denaturation, thermal modification of a tissue, and/or preferential injury to a target tissue structure. Example optical assemblies can produce substantially uniform illumination patterns that are useful for treating superficial tissue, including the internal or luminal (e.g., esophageal) tissue. Some examples may have capability for cooling superficial tissue or skin, such as a detachable, reusable heat sink for active cooling without consumables, fluid pumps, or other cooling equipment.

Abstract: An apparatus and a method are provided for the treatment of soft tissue. The apparatus includes a light source and at least two optical assemblies. Each of the optical assemblies includes at least one optical element and a light-transmitting contact surface configured to transmit a substantially uniform distribution of light therethrough. The apparatus further includes at least two optical transmission devices each disposed between the light source and a corresponding one of the at least two optical assemblies. The apparatus also includes a handpiece to which the at least two optical assemblies are attached, and which is adapted to bring the light-transmitting contact surfaces of the at least two optical assemblies in contact with soft tissue disposed therebetween.

Abstract: An apparatus and a method are provided for the treatment of soft tissue. The apparatus includes a light source and at least two optical assemblies. Each of the optical assemblies includes at least one optical element and a light-transmitting contact surface configured to transmit a substantially uniform distribution of light therethrough. The apparatus further includes at least two optical transmission devices each disposed between the light source and a corresponding one of the at least two optical assemblies. The apparatus also includes a handpiece to which the at least two optical assemblies are attached, and which is adapted to bring the light-transmitting contact surfaces of the at least two optical assemblies in contact with soft tissue disposed therebetween.

Abstract: Disclosed herein are optical assemblies having thin, low profile shapes. These optical assemblies may be used with fiber coupled lasers and other light sources, including high power sources, to irradiate tissue at a wavelength suitable for inducing ablation or coagulation to a target depth, denaturation, thermal modification of a tissue, and/or preferential injury to a target tissue structure. Example optical assemblies can produce substantially uniform illumination patterns that are useful for treating superficial tissue, including the internal or luminal (e.g., esophageal) tissue. Some examples may have capability for cooling superficial tissue or skin, such as a detachable, reusable heat sink for active cooling without consumables, fluid pumps, or other cooling equipment.

Abstract: An apparatus for treatment of soft tissue includes a source of radiation, a handpiece which is adapted to transmit radiation emitted from the source of radiation to a region of soft tissue, resulting in irradiated soft tissue, said handpiece being positioned adjacent to or in contact with said soft tissue region, a grid element adapted to hold at least one temperature sensor in contact with or embedded in said region of soft tissue, and a microprocessor, which converts a signal from the at least one temperature sensor into a measure of damage produced in at least two components of the irradiated soft tissue, said components comprising at least one normal tissue component and at least one malignant, hypertrophic, diseased, or unwanted component.

Abstract: Disclosed herein are methods and apparatus for treating bladder cancer. Example apparatus include a laser or other source that generates visible or near-infrared radiation and a cytoscope to deliver and apply the radiation to a treatment site, such as the urothelial surface of the bladder. The radiation alters the permeability of at least one layer of the bladder wall, allowing more efficacious administration of chemotherapeutic or anticancer agent to the bladder lumen during or after application of the radiation. Permeability of the bladder wall may be altered by damaging suburothelial blood vessels, such as those of the lamina propria of the bladder wall, or by damaging the urothelium and suburothelial blood vessels of the bladder in a patient with bladder cancer. Damage to the urothelium induced by the radiation may be of a continuous or discontinuous nature. Treatment may also cause regression or destruction of (pre)malignant tissue in the urothelium and suburothelium.

Abstract: Disclosed herein are optical assemblies having thin, low profile shapes. These optical assemblies may be used with fiber coupled lasers and other light sources, including high power sources, to irradiate tissue at a wavelength suitable for inducing ablation or coagulation to a target depth, denaturation, thermal modification of a tissue, and/or preferential injury to a target tissue structure. Example optical assemblies can produce substantially uniform illumination patterns that are useful for treating superficial tissue, including the internal or luminal (e.g., esophageal) tissue. Some examples may have capability for cooling superficial tissue or skin, such as a detachable, reusable heat sink for active cooling without consumables, fluid pumps, or other cooling equipment.

Abstract: An apparatus and a method are provided for the treatment of soft tissue. The apparatus includes a light source and at least two optical assemblies. Each of the optical assemblies includes at least one optical element and a light-transmitting contact surface configured to transmit a substantially uniform distribution of light therethrough. The apparatus further includes at least two optical transmission devices each disposed between the light source and a corresponding one of the at least two optical assemblies. The apparatus also includes a handpiece to which the at least two optical assemblies are attached, and which is adapted to bring the light-transmitting contact surfaces of the at least two optical assemblies in contact with soft tissue disposed therebetween.

Abstract: A method for treating wrinkles in skin involves the use of a beam of pulsed, scanned or gated continuous wave laser or incoherent radiation. The method comprises generating a beam of radiation, directing the beam of radiation to a targeted dermal region between 100 microns and 1.2 millimeters below a wrinkle in the skin, and thermally injuring collagen in the targeted dermal region. The beam of radiation has a wavelength of between 1.3 and 1.8 microns. The method may include cooling an area of the skin above the targeted dermal region while partially denaturing the collagen in the targeted dermal region. The method may also include cooling an area of the skin above the targeted dermal region prior to thermally injuring collagen in the targeted dermal region.

Abstract: A method for treating wrinkles in skin involves the use of a beam of pulsed, scanned or gated continuous wave laser or incoherent radiation. The method comprises generating a beam of radiation, directing the beam of radiation to a targeted dermal region between 100 microns and 1.2 millimeters below a wrinkle in the skin, and thermally injuring collagen in the targeted dermal region. The beam of radiation has a wavelength of between 1.3 and 1.8 microns. The method may include cooling an area of the skin above the targeted dermal region while partially denaturing the collagen in the targeted dermal region. The method may also include cooling an area of the skin above the targeted dermal region prior to thermally injuring collagen in the targeted dermal region.

Abstract: A method for treating wrinkles in skin involves the use of a beam of pulsed, scanned or gated continuous wave laser or incoherent radiation. The method comprises generating a beam of radiation, directing the beam of radiation to a targeted dermal region between 100 microns and 1.2 millimeters below a wrinkle in the skin, and thermally injuring collagen in the targeted dermal region. The beam of radiation has a wavelength of between 1.3 and 1.8 microns. The method may include cooling an area of the skin above the targeted dermal region while partially denaturing the collagen in the targeted dermal region. The method may also include cooling an area of the skin above the targeted dermal region prior to thermally injuring collagen in the targeted dermal region.

Abstract: Treatment of neoplastic or non-neoplastic dermatological conditions is achieved by administration and photodynamic activation of photosensitizers and pro-photosensitizers by coherent and/or incoherent light. The treatment does not cause clinically signification side effects such as purpura of the treated skin.

Abstract: The invention provides a method of treating certain skin disorders, including, for example, psoriasis. Pulsed or scanned coherent or incoherent radiation, when applied to a target region, both activates a photosensitizer disposed within the region and induces selective photothermolysis of blood vessels disposed within region. The combination of photodynamic therapy and selective photothermal damage in the target region provides an effective and long lasting treatment of the skin disorder.

Abstract: A method for treating wrinkles in skin involves the use of a beam of pulsed, scanned or gated continuous wave laser or incoherent radiation. The method comprises generating a beam of radiation, directing the beam of radiation to a targeted dermal region between 100 microns and 1.2 millimeters below a wrinkle in the skin, and thermally injuring collagen in the targeted dermal region. The beam of radiation has a wavelength of between 1.3 and 1.8 microns. The method may include cooling an area of the skin above the targeted dermal region while partially denaturing the collagen in the targeted dermal region. The method may also include cooling an area of the skin above the targeted dermal region prior to thermally injuring collagen in the targeted dermal region.

Abstract: A method of selectively enhancing the effect of photothermal vascular targeting on tumor regression by administration of a bioreductive agent is disclosed.