An exemplary capsule apparatus is provided, which includes a capsule having a first end and a second end opposite to the first end. A terminal portion of the capsule at the first end has a tapered end that has a section which curves toward a center of the terminal portion. Additionally, a tethered capsule apparatus includes a capsule configured to provide imaging optics having an orifice provided at least one end thereof. A tether having a proximal end and a distal end is also be provided The distal end of the tether has an enlarged end portion that is greater than a width of a neighboring portion, and the enlarged end portion can be positioned and configured to be secured in the orifice.
A61B 1/04 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
2.
Frequency-Domain Optical Coherence Tomography with Extended Field-of-View and Reduction of Aliasing Artifacts
The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.
The present disclosure provides an OCT imaging system having a variety of advantages. In particular, the OCT system of the present disclosure may provide a more intuitive interface, more efficient usage of controls, and a greater ability to view OCT imaging data.
The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.
The present disclosure provides an OCT imaging system having a variety of advantages. In particular, the OCT system of the present disclosure may provide a more intuitive interface, more efficient usage of controls, and a greater ability to view OCT imaging data.
The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.
An exemplary capsule apparatus is provided, which includes a capsule having a first end and a second end opposite to the first end. A terminal portion of the capsule at the first end has a tapered end that has a section which curves toward a center of the terminal portion. Additionally, a tethered capsule apparatus includes a capsule configured to provide imaging optics having an orifice provided at least one end thereof. A tether having a proximal end and a distal end is also be provided. The distal end of the tether has an enlarged end portion that has a width that is greater than a width of a neighboring portion, and the enlarged end portion can be positioned and configured to be secured in the orifice.
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 1/04 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances
An exemplary capsule apparatus is provided, which includes a capsule having a first end and a second end opposite to the first end. A terminal portion of the capsule at the first end has a tapered end that has a section which curves toward a center of the terminal portion. Additionally, a tethered capsule apparatus includes a capsule configured to provide imaging optics having an orifice provided at least one end thereof. A tether having a proximal end and a distal end is also be provided. The distal end of the tether has an enlarged end portion that has a width that is greater than a width of a neighboring portion, and the enlarged end portion can be positioned and configured to be secured in the orifice.
A61B 1/04 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
9.
Frequency-domain optical coherence tomography with extended field-of-view and reduction of aliasing artifacts
The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.
The present disclosure provides an OCT imaging system having a variety of advantages. In particular, the OCT system of the present disclosure may provide a more intuitive interface, more efficient usage of controls, and a greater ability to view OCT imaging data.
Exemplary imaging apparatuses are described. Various embodiments of the imaging apparatuses may implement optical coherence tomography (OCT) and/or optical frequency domain imaging (OFDI) tissue imaging technologies, with the capability to perform tissue retrieval at the same time. Furthermore, the imaging apparatuses may include a rotatable imaging element to scan a bodily lumen, such as the bile duct. The imaging element may be housed within a cylindrical window. Still further, the imaging apparatuses may include an ancillary channel. The ancillary channel may provide access to the tissue in the bile duct, or other bodily lumen.
A61B 10/04 - Endoscopic instruments, e.g. catheter-type instruments
A61B 1/018 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 17/00 - Surgical instruments, devices or methods
A61B 17/29 - Forceps for use in minimally invasive surgery
A61B 10/02 - Instruments for taking cell samples or for biopsy
A61B 1/07 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor with illuminating arrangements using light-conductive means, e.g. optical fibres
Exemplary imaging apparatuses are described. Various embodiments of the imaging apparatuses may implement optical coherence tomography (OCT) and/or optical frequency domain imaging (OFDI) tissue imaging technologies, with the capability to perform tissue retrieval at the same time. Furthermore, the imaging apparatuses may include a rotatable imaging element to scan a bodily lumen, such as the bile duct. The imaging element may be housed within a cylindrical window. Still further, the imaging apparatuses may include an ancillary channel. The ancillary channel may provide access to the tissue in the bile duct, or other bodily lumen.
Systems, devices and methods for producing registered images of a body lumen are provided. The system includes a first imaging device having an imager positioned at a distal end thereof, said first imaging device configured to produce a first image of a body cavity; and an imaging system, including a second imaging device having an imager positioned at a distal end thereof and configured to be positioned approximate to said imager of said first imaging device within said body cavity and configured to produce a second image; an elongated member configured to contain said second imaging device; and at least one marker configured to produce registration information in the first image and the second image.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/05 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 19/00 - Instruments, implements or accessories for surgery or diagnosis not covered by any of the groups A61B 1/00-A61B 18/00, e.g. for stereotaxis, sterile operation, luxation treatment, wound edge protectors(protective face masks A41D 13/11; surgeons' or patients' gowns or dresses A41D 13/12; devices for carrying-off, for treatment of, or for carrying-over, body liquids A61M 1/00)
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
14.
Frequency-domain optical coherence tomography with extended field-of-view and reduction of aliasing artifacts
The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.
The present disclosure provides an OCT imaging system having a variety of advantages. In particular, the OCT system of the present disclosure may provide a more intuitive interface, more efficient usage of controls, and a greater ability to view OCT imaging data.
An inflation system is provided including a housing having an interior portion including an opening. A connector is positioned within the interior portion. The connector includes a first portion defining a first passageway and a second portion defining a second passageway. The second portion includes a pressure relief valve. A shaft defines a third passageway. The shaft extends through the first passageway. An inflatable member defines a fourth passageway. The inflatable member includes a first end coupled to the connector and a second end positioned external to the interior portion defining a chamber that is in communication with the fourth passageway. Methods and kits are also disclosed.
A system for reducing artifacts produced in images using an optica! probe system is provided. The artifacts are reduced by reducing power of secondary beam paths produced by non-Fresnel reflections by at ieast one of absorption, scattering and rejection of the secondary beam paths.
The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 1/273 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
The present disclosure provides an OCT imaging system having a variety of advantages. In particular, the OCT system of the present disclosure may provide a more intuitive interface, more efficient usage of controls, and a greater ability to view OCT imaging data.
The present disclosure provides an OCT imaging system having a variety of advantages. In particular, the OCT system of the present disclosure may provide a more intuitive interface, more efficient usage of controls, and a greater ability to view OCT imaging data.
Multiple aperture, multiple modal optical systems and methods include at least one optical component positioned at a first position about a longitudinal axis; and at least two light sources connectable to the at least one optical component, wherein the multiple modal optical system is configured to transmit light from the at least two light sources in at least one direction transverse to the longitudinal axis and receive reflected light, and wherein the at least one optical component is configured to rotate about the longitudinal axis and translate along the longitudinal axis when connected to the at least two light sources.
A system for registering images is provided. The system includes a first imaging device having an imager positioned at a distal end thereof. The first image device is configured to produce a first image of a body cavity. The system includes an imaging system having a second imaging device having an imager positioned at a distal end thereof and configured to be positioned approximate to said imager of said first imaging device within said body cavity and configured to produce a second image. An elongated member having an outer surface is molded to include imaging markers such that said imaging markers are embedded within the outer surface. At least one of the image markers is configured to produce registration information in the first image and the second image.
A61B 1/04 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A system for registering images is provided. The system includes a first imaging device having an imager positioned at a distal end thereof. The first image device is configured to produce a first image of a body cavity. The system includes an imaging system having a second imaging device having an imager positioned at a distal end thereof and configured to be positioned approximate to said imager of said first imaging device within said body cavity and configured to produce a second image. An elongated member having an outer surface is molded to include imaging markers such that said imaging markers are embedded within the outer surface. At least one of the image markers is configured to produce registration information in the first image and the second image.
A61B 1/05 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
An extended depth of field optical probe (100) includes a lens (102); and a spacer (101) positioned adjacent the lens, the spacer and lens are configured to produce a plurality of waists (w1-w3) at a plurality of working distances by varying at least one of an index of refraction of adjacent optical components of the spacer and a physical geometry of a surface of the probe, and the working distance of a first waist is greater than 0.
A mechanical tensioning device includes a housing including a passageway and an opening that is in communication with the passageway. A plunger is movably disposed in the passageway. A first end of the plunger includes an inner member. A connector is coupled to the housing and includes a channel in communication with the passageway and a port in communication with the channel. A catheter is coupled to the connector and includes a lumen in communication with the channel and an expandable member. The inner member extends through the lumen and into the expandable member such that a distal end of the inner member is fixed to a distal end of the expandable member. The inner member is moveable between a first configuration in which the inner member is curved within the expandable member and a second configuration in which the inner member is less curved within the expandable member.
A low cost molded optical probe with astigmatic correction, fiber port, low back reflection, and highly reproducible in manufacturing quantities is provided. The molded optical probe includes a fiber receiving portion (llO)defining a groove (11, 112) defined along a longitudinal axis for receiving an optical fiber; a spacer portion (120) having a spacer portion surface non-orthogonal to the longitudinal axis of the groove, the spacer portion surface configured to cooperate with a distal end of the optical fiber; a prism portion (130) positioned adjacent the spacer portion and having a prism surface non-parallel to the spacer portion surface and non-orthogonal to the longitudinal axis and configured to reflect light transmit through the optical fiber off perpendicular to the longitudinal axis; and a lens portion (140) positioned adjacent the prism portion and having a lens surface configured to focus light received through the optical fiber.
A surgical system is provided that includes a sleeve having an inner surface defining a first channel that extends along a first longitudinal axis and an inner surface defining a second channel that extends along a second longitudinal axis. The second channel is spaced apart from the first channel. A first surgical instrument is configured for disposal in the first channel. The first surgical instrument includes an optical probe configured for imaging. A second surgical instrument is configured for disposal in the second channel. The second surgical instrument includes an inflatable balloon. Methods and kits are also provided.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 17/12 - Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
A61M 29/02 - Inflatable dilatorsDilators made of swellable materials
[0047] An endoscope support device is provided. The device includes a sleeve extending along a longitudinal axis between a first end and a second end. The sleeve includes an inner surface defining a passageway configured for disposal of an endoscope. An end surface of the distal end is spaced from external surroundings by a wall that defines the end surface. A center piece is disposed within the passageway. The center piece includes a first end that engages the end wall and an inner surface defining a lumen configured for disposal of an optical probe. The center piece is positioned within the passageway such that the lumen of the center piece is aligned with a lumen of the endoscope and the probe extends through the lumens. Systems, kits and methods are also provided.
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 1/018 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
A61B 10/04 - Endoscopic instruments, e.g. catheter-type instruments
An optical probe is provided. The optical probe includes a lens extending along an axis between a first end and a second end. A spacer extends along the axis between a first end and a second end. The first end of the spacer is connected to the second end of the lens. A prism is connected to the second end of the spacer such that the prism is spaced apart from the lens by the spacer.
An optical probe is provided. The optical probe includes a lens extending along an axis between a first end and a second end. A spacer extends along the axis between a first end and a second end. The first end of the spacer is connected to the second end of the lens. A prism is connected to the second end of the spacer such that the prism is spaced apart from the lens by the spacer.
A61B 1/012 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor characterised by internal passages or accessories therefor
31.
Imaging system producing multiple registered images of a body lumen
Systems, devices and methods for producing registered images of a body lumen are provided. The system includes a first imaging device having an imager positioned at a distal end thereof, said first imaging device configured to produce a first image of a body cavity; and an imaging system, including a second imaging device having an imager positioned at a distal end thereof and configured to be positioned approximate to said imager of said first imaging device within said body cavity and configured to produce a second image; an elongated member configured to contain said second imaging device; and at least one marker configured to produce registration information in the first image and the second image.
A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 19/00 - Instruments, implements or accessories for surgery or diagnosis not covered by any of the groups A61B 1/00-A61B 18/00, e.g. for stereotaxis, sterile operation, luxation treatment, wound edge protectors(protective face masks A41D 13/11; surgeons' or patients' gowns or dresses A41D 13/12; devices for carrying-off, for treatment of, or for carrying-over, body liquids A61M 1/00)
32.
IMAGING SYSTEM PRODUCING MULTIPLE REGISTERED IMAGES OF A BODY LUMEN
Systems, devices and methods for producing registered images of a body lumen are provided. The system includes a first imaging device having an imager positioned at a distal end thereof, said first imaging device configured to produce a first image of a body cavity; and an imaging system, including a second imaging device having an imager positioned at a distal end thereof and configured to be positioned approximate to said imager of said first imaging device within said body cavity and configured to produce a second image; an elongated member configured to contain said second imaging device; and at least one marker configured to produce registration information in the first image and the second image.
Systems, devices, methods and kits for an inflation system (10) with pressure relief are provided. The system includes an inflatable member (40), a first shaft (50) connected to the inflatable member, an imaging device (20) extending into said cavity of the inflatable member, a second shaft (30) configured to contain the imaging device, the second shaft having a closed end (31) approximate to the imaging assembly and a open end (32) approximate to the imaging system (150), the second shaft defining a cavity (33) along a longitudinal axis thereof and configured to be positioned within the cavity of the first shaft; the first shaft and the second shaft defining a channel (53) therebetween in communication with the cavity of the inflatable member; an inflator (100) connected to the first shaft and in communication with the channel for inflating the inflatable member; and a relief valve (70) in communication with the channel and positioned between the inflatable member and the inflator.
A61B 5/00 - Measuring for diagnostic purposes Identification of persons
A61B 1/00 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor
A61B 8/12 - Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
34.
Systems and methods for signal processing in optical imaging systems
Systems, devices and methods of producing an image are provided. A electro-magnetic radiation source provides electro-magnetic radiation to a sample and a reference. A detector/interferogram unit produces at least one interferogram that is supplied to a signal processing unit. The signal processing unit extracts phase, magnitude, and/or polarization data from the supplied signals, and produces an image based on at least the extracted data.
G01B 11/26 - Measuring arrangements characterised by the use of optical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of optical techniques for testing the alignment of axes
patents
