Intraocular drainage valves are provided that include a housing having a fluid entry/exit portion and a sealing portion. The fluid entry/exit portion includes an inlet tube port, a fluid entry reservoir (813), an outlet tube port (816), a fluid exit reservoir and a membrane base (817) having a sealing surface (819) and defining a valve portion of the fluid entry reservoir. A sealing portion (814) includes a bar (822) extending towards the membrane base (817). A valve membrane (850) is disposed between the valve portion of the fluid entry reservoir (813) and the bar (822) with a first portion of the valve membrane pressed against the bar (822). A flap portion (853) of the valve membrane (850) seals against the sealing surface (819) at a first fluid pressure and flexes away from a portion of the sealing surface (819) at a second fluid pressure. Methods of operating intraocular drainage valves and intraocular drainage assemblies are also provided.
Ophthalmic devices can be applied for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The ophthalmic device can be used to cut the trabecular meshwork (TM) in the eye. The device tip provides entry into the Schlemm's canal and ramped portions elevate the TM under tension and guide it to lateral blades. An entire strip of TM can be removed without leaving TM leaflets behind and without causing collateral damage to adjacent tissues.
The Regents of the University of Colorado, a body corporate (USA)
New World Medical, Inc. (USA)
Inventeur(s)
Kahook, Malik Y.
Mansour, Khalid
Abdullah, Suhail
Porteous, Eric
Balan, Vijay R.
Abrégé
An ophthalmic knife for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques is provided. The ophthalmic knife includes a shaft, a first platform connected to an end of the shaft and extending at an angle from a longitudinal axis of the shaft and a second platform connected to the shaft adjacent to the first platform. The first platform includes a first top surface extending from a first tip and a first bottom surface opposing the first top surface, and the second platform includes a second top surface extending from a second tip, and a second bottom surface opposing the second top surface. The first platform severs trabecular meshwork in a human eye as the trabecular meshwork advances over the first top surface of the first platform and the second bottom surface of the second platform engages but does not sever the trabecular meshwork.
Intraocular stents are provided. An intraocular stent (20) includes a piercing end (40) for penetration into portions of the eye without requiring a surgical incision by a separate cutting device. A first retention member (50) stabilizes the intraocular stent (20) against the anterior wall of the canal of Schlemm. A second retention member (60) stabilizes the intraocular stent within the trabecular meshwork. A fluid inlet end (73) is configured to be disposed within the anterior chamber. In use. aqueous humor fluid flows into the fluid inlet end (72) through a central lumen (70) and/or drainage tubes (80) and out into the canal of Schlemm. Stack configurations of intraocular stents and insertion devices are also provided.
An internal mechanism configured to pump a fluid in an ophthalmic device is provided. The internal mechanism includes an inlet port, a drive member coupled to the actuator and a plunger coupled to the drive member. The drive member provides a force that moves the plunger in a first direction when the actuator moves from an un-pressed position to a pressed position, the movement of the plunger in the first direction causing the fluid to move from the inlet port and through a cannula and causing a portion of the fluid to exit one or more orifices of the cannula. An ophthalmic device having an internal mechanism is also provided.
A61M 5/315 - PistonsTiges de pistonGuidage, blocage, ou limitation des mouvements de la tigeAccessoires disposés sur la tige pour faciliter le dosage
A61M 5/46 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras avec des moyens pour commander la profondeur de pénétration
Devices and methods for intraocular fluid injection are disclosed. A device can include a surgical instrument for an ophthalmic procedure. The surgical instrument can include a handle. A fluid compartment can be coupled to the handle and configured to hold a substance. A tool can be coupled to the distal end of the handle and have a lumen configured to convey the substance into an intraocular site of a patient. A piston can be in the handle and configured to reciprocate along the longitudinal axis of the handle to draw the substance from the fluid compartment and eject the substance through the lumen of the tool. A push button can be on the lateral side of the housing and configured to engage the piston via a sloped surface to actuate a forward stroke of the piston towards the distal end of the handle.
An ophthalmic device including a cannula having a cannula distal end, a lumen, and at least one fluid outlet is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and configured to retract the sleeve relative to the cannula.
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
The Regents of the University of Colorado, a body corporate (USA)
New World Medical, Inc. (USA)
Inventeur(s)
Kahook, Malik Y.
Mansour, Khalid
Abdullah, Suhail
Porteous, Eric
Balan, Vijay R.
Abrégé
The present invention relates to an ophthalmic knife and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The device is configured for cutting the tissues within the eye, for example, a trabecular meshwork (TM).
An ophthalmic device including a cannula having a cannula distal end, a lumen, and one or more orifices coupled to the lumen is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and configured to retract the sleeve relative to the cannula. The internal mechanism includes a follower fixedly coupled to the sleeve and moveable between distal and proximal positions, and a release member movable between an activated position and a release position. The release member is coupled to the actuator and configured to release a force that urges the follower from the distal position to the proximal position when the release member moves from the activated position to the release position.
A61M 5/315 - PistonsTiges de pistonGuidage, blocage, ou limitation des mouvements de la tigeAccessoires disposés sur la tige pour faciliter le dosage
A61M 5/46 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras avec des moyens pour commander la profondeur de pénétration
Intraocular drainage devices are provided. An intraocular drainage device includes a drainage tube that provides for increased drainage of aqueous humour from the anterior chamber of the eye. A self-clearing device is disposed within the drainage tube. The self-clearing device provides an increased fluid flow path within the drainage tube in response to clotting from the body or clogging from debris in the aqueous humour. Methods of manufacturing intraocular drainage devices and methods of inserting intraocular drainage devices into the eye are also provided.
Ophthalmic devices include a housing and a cannula extending from the housing, the cannula having a lumen for fluid flow, a reservoir for holding fluid and an activation assembly. The activation assembly includes a rotatable wheel and a moveable housing ring coupled to the wheel, the coupled rotatable wheel and moveable housing ring configured to move inward together towards an interior of the housing when an inward force is applied to the wheel and to move outward together away from the interior of the housing when an outward force is applied to the coupled wheel and the moveable housing ring. Methods of operating ophthalmic devices are also provided.
Ophthalmic devices (4000) include a housing (4100) and a cannula (4120) extending from the housing, the cannula having a lumen for fluid flow, a reservoir for holding fluid and an activation assembly (4200). The activation assembly includes a rotatable wheel (4210) and a moveable housing ring (4220) coupled to the wheel, the coupled rotatable wheel and moveable housing ring configured to move inward together towards an interior of the housing when an inward force is applied to the wheel and to move outward together away from the interior of the housing when an outward force is applied to the coupled wheel and the moveable housing ring. Methods of operating ophthalmic devices are also provided.
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
The Regents of the University of Colorado, a body corporate (USA)
New World Medical, Inc. (USA)
Inventeur(s)
Kahook, Malik Y.
Mansour, Khalid
Abdullah, Suhail
Porteous, Eric
Balan, Vijay R.
Abrégé
The present invention relates to an ophthalmic knife and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The device is configured for cutting the tissues within the eye, for example, a trabecular meshwork (TM).
Intraocular stents are provided. An intraocular stent (20) includes a piercing end (40) for penetration into portions of the eye without requiring a surgical incision by a separate cutting device. A first retention member (50) stabilizes the intraocular stent (20) against the anterior wall of the canal of Schlemm. A second retention member (60) stabilizes the intraocular stent within the trabecular meshwork. A fluid inlet end (73) is configured to be disposed within the anterior chamber. In use, aqueous humor fluid flows into the fluid inlet end (72) through a central lumen (70) and/or drainage tubes (80) and out into the canal of Schlemm. Stack configurations of intraocular stents and insertion devices are also provided.
Apparatus and methods for ocular treatment are provided. The apparatus can comprise an outer sheath and a microcannula movably housed within the outer sheath and having a proximal end, a distal end, a cavity, and a central longitudinal axis. The apparatus can include a first protrusion extending circumferentially inward at a distal end of the outer sheath and a second protrusion located on an outer circumferential surface of the microcannula. The apparatus can include multiple orifices disposed on the microcannula distal end, each of the orifices defining a channel extending transverse to the central longitudinal axis and configured to deliver a substance radially outwardly from the distal tip of the microcannula. The distal tip can extend out from a distal opening of the outer sheath when the microcannula is in an extended position and can be housed within the outer sheath when the microcannula is in a retracted position.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
Intraocular drainage devices and methods of making intraocular drainage devices are disclosed. A disclosed intraocular drainage device includes a tube having a distal end and a body disposed proximal to the tube. A central inlet port is disposed on the distal end of the tube and extends lengthwise internally through the tube. A central outlet port is disposed on the proximal end of the body and extends lengthwise internally through the body. Multiple transverse inlet and outlet ports are coupled to the central inlet and outlet ports, respectively. The central and transverse inlet ports are configured to receive influent fluid from an anterior chamber of an eye and the central and transverse outlet ports are configured to output the influent fluid external to the anterior chamber of the eye. Intraocular drainage and core assemblies and methods of making intraocular drainage devices are also disclosed.
An ophthalmic device including a cannula having a cannula distal end, a lumen, and one or more orifices coupled to the lumen is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and is configured to pump the fluid. The internal mechanism includes an inlet port disposed on a handle proximal end, a drive member coupled to the actuator and a plunger coupled to the drive member. The ophthalmic device is configured to retain a volume of fluid and to be prevented from being re-primed after a predetermined number of actuator presses, wherein the retained volume of fluid is dispensed over an additional number of actuator pushes.
A61M 5/315 - PistonsTiges de pistonGuidage, blocage, ou limitation des mouvements de la tigeAccessoires disposés sur la tige pour faciliter le dosage
A61M 5/46 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras avec des moyens pour commander la profondeur de pénétration
The Regents of the University of Colorado, a body corporate (USA)
New World Medical, Inc. (USA)
Inventeur(s)
Kahook, Malik Y.
Mansour, Khalid
Abdullah, Suhail
Porteous, Eric
Balan, Vijay R.
Abrégé
The present invention relates to an ophthalmic knife and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a multi-blade device for cutting the tissues within the eye, for example, a trabecular meshwork (TM).
An ophthalmic device including a cannula having a cannula distal end, a lumen, and at least one fluid outlet is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and configured to retract the sleeve relative to the cannula.
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
A61M 5/32 - AiguillesParties constitutives des aiguilles relatives au raccordement de celles-ci à la seringue ou au manchonAccessoires pour introduire l'aiguille dans le corps ou l'y maintenirDispositifs pour la protection des aiguilles
Intraocular drainage devices are provided. An intraocular drainage device includes a drainage tube that provides for increased drainage of aqueous humour from the anterior chamber of the eye. A self-clearing device is disposed within the drainage tube. The self-clearing device provides an increased fluid flow path within the drainage tube in response to clotting from the body or clogging from debris in the aqueous humour. Methods of manufacturing intraocular drainage devices and methods of inserting intraocular drainage devices into the eye are also provided.
An ophthalmic device including a cannula having a cannula distal end, a lumen, and one or more orifices coupled to the lumen is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and configured to retract the sleeve relative to the cannula. The internal mechanism includes a follower fixedly coupled to the sleeve and moveable between distal and proximal positions, and a release member movable between an activated position and a release position. The release member is coupled to the actuator and configured to release a force that urges the follower from the distal position to the proximal position when the release member moves from the activated position to the release position.
A61M 5/315 - PistonsTiges de pistonGuidage, blocage, ou limitation des mouvements de la tigeAccessoires disposés sur la tige pour faciliter le dosage
A61M 5/46 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras avec des moyens pour commander la profondeur de pénétration
32.
Ocular treatment devices and related methods of use
Apparatus and methods for ocular treatment are provided. The apparatus can comprise a microcannula having a proximal end, a distal end, a cavity, and a central longitudinal axis. The apparatus can include a handle coupled to the proximal end of the microcannula. The apparatus can include multiple orifices extending circumferentially about the microcannula distal end, each of the orifices defining a channel extending transverse to the central longitudinal axis, and one or more grooves about a circumference of the microcannula.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
An intraocular drainage device may include a monolithic silicone body having a flap, a rigid bottom plate having a portion configured to contact a corresponding portion of the flap, and a tube having a proximal end disposed between the flap and the rigid bottom plate. The corresponding portion of the flap may be configured to separate from the portion of the rigid bottom plate responsive to a fluid pressure in aqueous humor received from the tube. A plurality of parallel microgrooves may be formed on one or more portions of one or more outer surfaces of the intraocular drainage device.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61L 31/06 - Matériaux macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
An ophthalmic device and methods of its use can be applied for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The ophthalmic device can be used to cut the trabecular meshwork (TM) in the eye. The device tip provides entry into the Schlemm's canal and ramped portions elevate the TM under tension and guide it to lateral blades. An entire strip of TM can be removed without leaving TM leaflets behind and without causing collateral damage to adjacent tissues.
Intraocular drainage devices and methods of making intraocular drainage devices are disclosed. A disclosed intraocular drainage device includes a tube having a distal end and a body disposed proximal to the tube. A central inlet port is disposed on the distal end of the tube and extends lengthwise internally through the tube. A central outlet port is disposed on the proximal end of the body and extends lengthwise internally through the body. Multiple transverse inlet and outlet ports are coupled to the central inlet and outlet ports, respectively. The central and transverse inlet ports are configured to receive influent fluid from an anterior chamber of an eye and the central and transverse outlet ports are configured to output the influent fluid external to the anterior chamber of the eye. Intraocular drainage and core assemblies and methods of making intraocular drainage devices are also disclosed.
Devices and methods for intraocular fluid injection are disclosed. A device can include a surgical instrument for an ophthalmic procedure. The surgical instrument can include a handle. A fluid compartment can be coupled to the handle and configured to hold a substance. A tool can be coupled to the distal end of the handle and have a lumen configured to convey the substance into an intraocular site of a patient. A piston can be in the handle and configured to reciprocate along the longitudinal axis of the handle to draw the substance from the fluid compartment and eject the substance through the lumen of the tool. A push button can be on the lateral side of the housing and configured to engage the piston via a sloped surface to actuate a forward stroke of the piston towards the distal end of the handle.
THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE (USA)
NEW WORLD MEDICAL, INC. (USA)
Inventeur(s)
Kahook, Malik
Mansour, Khalid
Abdullah, Suhail
Porteous, Eric
Balan, Vijay R.
Abrégé
The present invention relates to an ophthalmic knife and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a multi-blade device for cutting the tissues within the eye, for example, a trabecular meshwork (TM).
An extraction device can include a delivery shaft having a lumen and a distal end, a first wire forming a first arc and being positionable distal to the distal end of the delivery shaft while ends of the first arc are at a distalmost end of the delivery shaft, and a second wire forming a second arc and being positionable distal to the distal end of the delivery shaft while ends of the second arc are at the distalmost end of the delivery shaft. A distalmost extent of the first wire is distal to a distalmost extent of the second wire. The first wire and the second wire are separately retractable relative to the delivery shaft.
Apparatus and methods for ocular treatment are provided. The apparatus can comprise a microcannula having a proximal end, a distal end, a cavity, and a central longitudinal axis. The apparatus can include a handle coupled to the proximal end of the microcannula. The apparatus can include multiple orifices extending circumferentially about the microcannula distal end, each of the orifices defining a channel extending transverse to the central longitudinal axis, and one or more grooves about a circumference of the microcannula.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE (USA)
NEW WORLD MEDICAL INC. (USA)
Inventeur(s)
Kahook, Malik Y.
Mansour, Khalid
Abdullah, Suhail
Porteous, Eric
Balan, Vijay R.
Abrégé
The present invention relates to an ophthalmic knife and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a multi-blade device for cutting the tissues within the eye, for example, a trabecular meshwork (TM).
An ophthalmic device including a cannula having a cannula distal end, a lumen, and one or more orifices coupled to the lumen is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and configured to retract the sleeve relative to the cannula. The internal mechanism includes a follower fixedly coupled to the sleeve and moveable between distal and proximal positions, and a release member movable between an activated position and a release position. The release member is coupled to the actuator and configured to release a force that urges the follower from the distal position to the proximal position when the release member moves from the activated position to the release position.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61M 5/46 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras avec des moyens pour commander la profondeur de pénétration
An ophthalmic device including a cannula having a cannula distal end, a lumen, and one or more orifices coupled to the lumen is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and configured to retract the sleeve relative to the cannula. The internal mechanism includes a follower fixedly coupled to the sleeve and moveable between distal and proximal positions, and a release member movable between an activated position and a release position. The release member is coupled to the actuator and configured to release a force that urges the follower from the distal position to the proximal position when the release member moves from the activated position to the release position.
An ophthalmic device including a cannula having a cannula distal end, a lumen, and one or more orifices coupled to the lumen is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and configured to retract the sleeve relative to the cannula. The internal mechanism includes a follower fixedly coupled to the sleeve and moveable between distal and proximal positions, and a release member movable between an activated position and a release position. The release member is coupled to the actuator and configured to release a force that urges the follower from the distal position to the proximal position when the release member moves from the activated position to the release position.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61M 5/46 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras avec des moyens pour commander la profondeur de pénétration
Intraocular drainage devices, intraocular implantation procedures, and inserter devices for intraocular implantation procedures are disclosure. A disclosed intraocular drainage device includes a tube having a distal end and a body disposed proximal to the tube. An inlet port is disposed on the distal end of the tube and configured to receive an influent fluid from an anterior chamber of an eye. An inlet fluid pathway is coupled to the inlet port and extends at least partially through the tube. A plurality of outlet fluid pathways extend at least partially through the body and branch from the inlet fluid pathway. A plurality of outlet ports are disposed on the body and coupled to the plurality of outlet fluid pathways. A disclosed inserter device for an ocular implantation procedure includes a handle, a needle, and a plunger. The needle is disposed on a distal end of the handle and configured to hold an intraocular drainage device. The plunger is coupled to the needle and disposed in the handle. The plunger is disposed distal to a vacuum chamber within the handle and configured to retract the needle based on a proximal force applied by the vacuum chamber.
A61F 2/00 - Filtres implantables dans les vaisseaux sanguinsProthèses, c.-à-d. éléments de substitution ou de remplacement pour des parties du corpsAppareils pour les assujettir au corpsDispositifs maintenant le passage ou évitant l'affaissement de structures corporelles tubulaires, p. ex. stents
An ophthalmic device including a cannula having a cannula distal end, a lumen, and one or more orifices coupled to the lumen is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and configured to retract the sleeve relative to the cannula. The internal mechanism includes a follower fixedly coupled to the sleeve and moveable between distal and proximal positions, and a release member movable between an activated position and a release position. The release member is coupled to the actuator and configured to release a force that urges the follower from the distal position to the proximal position when the release member moves from the activated position to the release position.
An ophthalmic device including a cannula having a cannula distal end, a lumen, and one or more orifices coupled to the lumen is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and configured to retract the sleeve relative to the cannula. The internal mechanism includes a follower fixedly coupled to the sleeve and moveable between distal and proximal positions, and a release member movable between an activated position and a release position. The release member is coupled to the actuator and configured to release a force that urges the follower from the distal position to the proximal position when the release member moves from the activated position to the release position.
Apparatus and methods for ocular treatment are provided. The apparatus can comprise a microcannula having a proximal end, a distal end, a cavity, and a central longitudinal axis. The apparatus can include a handle coupled to the proximal end of the microcannula. The apparatus can include multiple orifices extending circumferentially about the microcannula distal end, each of the orifices defining a channel extending transverse to the central longitudinal axis, and one or more grooves about a circumference of the microcannula.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
An ophthalmic device including a cannula having a cannula distal end, a lumen, and one or more orifices coupled to the lumen is provided. The cannula is configured to deliver a fluid. A sleeve is disposed around the cannula and has a sleeve distal end. A handle is coupled to the sleeve and the cannula, the handle having an actuator. An internal mechanism is coupled to the actuator and configured to retract the sleeve relative to the cannula. The internal mechanism includes a follower fixedly coupled to the sleeve and moveable between distal and proximal positions, and a release member movable between an activated position and a release position. The release member is coupled to the actuator and configured to release a force that urges the follower from the distal position to the proximal position when the release member moves from the activated position to the release position.
Devices and methods for intraocular fluid injection are disclosed. A device can include a surgical instrument for an ophthalmic procedure. The surgical instrument can include a handle. A fluid compartment can be coupled to the handle and configured to hold a substance. A tool can be coupled to the distal end of the handle and have a lumen configured to convey the substance into an intraocular site of a patient. A piston can be in the handle and configured to reciprocate along the longitudinal axis of the handle to draw the substance from the fluid compartment and eject the substance through the lumen of the tool. A push button can be on the lateral side of the housing and configured to engage the piston via a sloped surface to actuate a forward stroke of the piston towards the distal end of the handle.
The Regents of the University of Colorado, a body corporated (USA)
New World Medical, Inc. (USA)
Inventeur(s)
Kahook, Malik
Mansour, Khalid
Abdullah, Suhail
Porteous, Eric
Balan, Vijay R.
Abrégé
The present invention relates to an ophthalmic knife and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a multi-blade device for cutting the tissues within the eye, for example, a trabecular meshwork (TM).
An ophthalmic device and methods of its use can be applied for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The ophthalmic device can be used to cut the trabecular meshwork (TM) in the eye. The device tip provides entry into the Schlemm's canal and ramped portions elevate the TM under tension and guide it to lateral blades. An entire strip of TM can be removed without leaving TM leaflets behind and without causing collateral damage to adjacent tissues.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
Intraocular drainage devices, intraocular implantation procedures, and inserter devices for intraocular implantation procedures are disclosure. A disclosed intraocular drainage device (100) includes a tube (106) having a distal end and a body (102) disposed proximal to the tube. An inlet port is disposed on the distal end of the tube and configured to receive an influent fluid from an anterior chamber of an eye. An inlet fluid pathway is coupled to the inlet port and extends at least partially through the tube. A plurality of outlet fluid pathways extend at least partially through the body and branch from the inlet fluid pathway. A plurality of outlet ports are disposed on the body and coupled to the plurality of outlet fluid pathways. A disclosed inserter device (250) for an ocular implantation procedure includes a handle(254), a needle (253), and a plunger. The needle is disposed on a distal end of the handle and configured to hold an intraocular drainage device. The plunger is coupled to the needle and disposed in the handle. The plunger is disposed distal to a vacuum chamber within the handle and configured to retract the needle based on a proximal force applied by the vacuum chamber.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
Apparatus and methods for cataract extraction are disclosed. An extraction device may include a delivery shaft having a lumen and a distal end. The lumen may include a first channel and a second channel diverging at the distal end. A wire may form a loop and extend from the first channel and the second channel. The wire may be movable within the lumen.
Devices and methods for intraocular fluid injection are disclosed. A device can include a surgical instrument for an ophthalmic procedure. The surgical instrument can include a handle. A fluid compartment can be coupled to the handle and configured to hold a substance. A tool can be coupled to the distal end of the handle and have a lumen configured to convey the substance into an intraocular site of a patient. A piston can be in the handle and configured to reciprocate along the longitudinal axis of the handle to draw the substance from the fluid compartment and eject the substance through the lumen of the tool. A push button can be on the lateral side of the housing and configured to engage the piston via a sloped surface to actuate a forward stroke of the piston towards the distal end of the handle.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61B 17/3211 - Scalpels chirurgicaux ou bistourisLeurs accessoires
A61M 5/315 - PistonsTiges de pistonGuidage, blocage, ou limitation des mouvements de la tigeAccessoires disposés sur la tige pour faciliter le dosage
A61M 5/46 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras avec des moyens pour commander la profondeur de pénétration
An intraocular drainage device may include a monolithic silicone body having a flap, a rigid bottom plate having a portion configured to contact a corresponding portion of the flap, and a tube having a proximal end disposed between the flap and the rigid bottom plate. The corresponding portion of the flap may be configured to separate from the portion of the rigid bottom plate responsive to a fluid pressure in aqueous humor received from the tube. A plurality of parallel microgrooves may be formed on one or more portions of one or more outer surfaces of the intraocular drainage device.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61L 31/06 - Matériaux macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE (USA)
Inventeur(s)
Kahook, Malik
Mansour, Khalid
Abdullah, Suhail
Porteous, Eric
Abrégé
The present invention relates to an ophthalmic knife and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a multi-blade device for cutting the tissues within the eye, for example, a trabecular meshwork (TM).
Apparatus and methods for ocular treatment are provided. The apparatus can comprise a microcannula having a proximal end, a distal end, a cavity, and a central longitudinal axis. The apparatus can include a handle coupled to the proximal end of the microcannula. The apparatus can include multiple orfices extending circumferentially about the microcannula distal end, each of the orifices defining a channel extending transverse to the central longitudinal axis, and one or more grooves about a circumference of the microcannula.
Apparatus and methods for ocular treatment are provided. The apparatus can comprise a microcannula having a proximal end, a distal end, a cavity, and a central longitudinal axis. The apparatus can include a handle coupled to the proximal end of the microcannula. The apparatus can include multiple offices extending circumferentially about the microcannula distal end, each of the orifices defining a channel extending transverse to the central longitudinal axis, and one or more grooves about a circumference of the microcannula.
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
An intraocular drainage device may include a monolithic silicone body having a flap, a rigid bottom plate having a portion configured to contact a corresponding portion of the flap, and a tube having a proximal end disposed between the flap and the rigid bottom plate. The corresponding portion of the flap may be configured to separate from the portion of the rigid bottom plate responsive to a fluid pressure in aqueous humor received from the tube. A plurality of parallel microgrooves may be formed on one or more portions of one or more outer surfaces of the intraocular drainage device.
A61F 9/00 - Procédés ou dispositifs pour le traitement des yeuxDispositifs pour mettre en place des verres de contactDispositifs pour corriger le strabismeAppareils pour guider les aveuglesDispositifs protecteurs pour les yeux, portés sur le corps ou dans la main
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61L 31/06 - Matériaux macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
An intraocular drainage device may include a monolithic silicone body having a flap, a rigid bottom plate having a portion configured to contact a corresponding portion of the flap, and a tube having a proximal end disposed between the flap and the rigid bottom plate. The corresponding portion of the flap may be configured to separate from the portion of the rigid bottom plate responsive to a fluid pressure in aqueous humor received from the tube. A plurality of parallel microgrooves may be formed on one or more portions of one or more outer surfaces of the intraocular drainage device.
An intraocular drainage device may include a monolithic silicone body having a flap, a rigid bottom plate having a portion configured to contact a corresponding portion of the flap, and a tube having a proximal end disposed between the flap and the rigid bottom plate. The corresponding portion of the flap may be configured to separate from the portion of the rigid bottom plate responsive to a fluid pressure in aqueous humor received from the tube. A plurality of parallel microgrooves may be formed on one or more portions of one or more outer surfaces of the intraocular drainage device.
A61M 5/00 - Dispositifs pour faire pénétrer des agents dans le corps par introduction sous-cutanée, intravasculaire ou intramusculaireAccessoires à cet effet, p. ex. dispositifs de remplissage ou de nettoyage, appuis-bras
A61F 9/007 - Procédés ou dispositifs pour la chirurgie de l'œil
A61L 31/06 - Matériaux macromoléculaires obtenus autrement que par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
An extraction device can include a delivery shaft having a lumen and a distal end, a first wire forming a first arc and being positionable distal to the distal end of the delivery shaft while ends of the first arc are at a distalmost end of the delivery shaft, and a second wire forming a second arc and being positionable distal to the distal end of the delivery shaft while ends of the second arc are at the distalmost end of the delivery shaft. A distalmost extent of the first wire is distal to a distalmost extent of the second wire. The first wire and the second wire are separately retractable relative to the delivery shaft.
THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE (USA)
NEW WORLD MEDICAL, INC. (USA)
Inventeur(s)
Kahook, Malik, Y.
Mansour, Khalid
Abdullah, Suhail
Porteous, Eric
Abrégé
The present invention relates to an ophthalmic knife and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a multi-blade device for cutting the tissues within the eye, for example, a trabecular meshwork (TM).
The Regents of the University of Colorado, a body corporate (USA)
New World Medical, Inc. (USA)
Inventeur(s)
Kahook, Malik
Mansour, Khalid
Abdullah, Suhail
Porteous, Eric
Abrégé
The present invention relates to an ophthalmic knife and methods of its use for treatment of various conditions including eye diseases, such as glaucoma, using minimally invasive surgical techniques. The invention relates to a multi-blade device for cutting the tissues within the eye, for example, a trabecular meshwork (TM).
