Abstract: Certain aspects of the present disclosure provide a surgical system comprising a fluid output device capable of connecting to a syringe comprising a material for delivery to a body part through a cannula connected to the syringe and a controller configured to adjust a pressure of the fluid output to enable a controlled delivery of the material within the syringe at a target flow rate.

Abstract: Particular embodiments disclosed herein provide an apparatus and corresponding methods for guiding ophthalmic surgery and enabling a surgeon to switch, after initiating surgery, between a primary treatment plan and one or more backup plans. Switching between a first plan and a second plan may be performed while omitting presentation of steps of the second plan compatible with implemented steps of the first plan. A treatment plan may include guides imposed on a live video of an eye of the patient that has been registered with respect to a pre-operative image. When switching between plans, initiating registration with respect to the pre-operative image is omitted. A treatment plan may define steps for placement of an IOL such as incision, rhexis, LRI, crystalline lens removal, placement of an IOL, alignment of a toric IOL, and post-operative data collection. Upon switching between first and second, previously implemented compatible steps are omitted from presentation of the second plan.

Abstract: Certain aspects of the present disclosure provide an ophthalmic measurement device. The device comprises one or more ophthalmic measurement features, configured to generate a measurement for an anatomical characteristic of an eye of a patient, and a user interface, configured to enable a medical practitioner to interact with the ophthalmic measurement device and a memory.

Abstract: Methods and systems for performing an ophthalmic surgical treatment procedure include one or more wicking members to secure a volume of treatment fluid to a distal end of a surgical instrument. Such a surgical instrument may include an elongate tubular member having a proximal end, a distal end, and a lumen extending therebetween, the elongate tubular member being configured to penetrate a body cavity of a patient. The instrument may further include a wicking member extending beyond the distal end of the elongate tubular member. The wicking member may be configured to secure a volume of treatment fluid delivered through the lumen to the wicking member for application from the wicking member to target tissue in the body cavity.

Abstract: A system and method for a diaphragm-based fluidics aspiration system is disclosed. The aspiration system includes a waste reservoir configured to hold a vacuum pressure; an aspiration connection; a vacuum pinch valve including a first outlet fluidically coupled to the waste reservoir; a second outlet fluidically coupled to the aspiration connection; a fluid channel; and an actuator configured to alter a cross-sectional area of the fluid channel.

Abstract: Surgical instruments and, particularly, ophthalmic surgical instruments are disclosed. Example surgical instruments include forceps for removal of an internal limiting membrane (ILM). The example forceps may include a textured surface formed at a distal end of the forceps jaws. The textured surface may have a plurality of microposts that operate to increase a coefficient of friction between the ILM and the forceps in order to reduce a normal force, applied by the forceps, needed to engage the ILM.

Abstract: In a general aspect, a syringe terminates the dispensing of a fluid based on a force applied to a plunger member of the syringe. In some aspects, a plunger member of a syringe includes a top portion, a bottom portion, and a contact portion. The top and bottom portions are in contact with the contact portion, and the bottom portion has a length greater than or equal to a length of the top portion. The contact portion permits the top portion to move independent of the bottom portion in response to a stress in the contact portion exceeding a critical stress. The stress in the contact portion is based on a first force applied to the top portion and a second force opposite the first force applied to the bottom portion.

Abstract: Methods and systems for performing an ophthalmic surgical treatment procedure include one or more wicking members to secure a volume of treatment fluid to a distal end of a surgical instrument. Such a surgical instrument may include an elongate tubular member having a proximal end, a distal end, and a lumen extending therebetween, the elongate tubular member being configured to penetrate a body cavity of a patient. The instrument may further include a wicking member extending beyond the distal end of the elongate tubular member. The wicking member may be configured to secure a volume of treatment fluid delivered through the lumen to the wicking member for application from the wicking member to target tissue in the body cavity.

Abstract: Certain aspects of the present disclosure provide a surgical system comprising a fluid output device capable of connecting to a syringe comprising a material for delivery to a body part through a cannula connected to the syringe and a controller configured to adjust a pressure of the fluid output to enable a controlled delivery of the material within the syringe at a target flow rate.

Abstract: Methods and systems for performing an ophthalmic surgical treatment procedure include one or more wicking members to secure a volume of treatment fluid to a distal end of a surgical instrument. Such a surgical instrument may include an elongate tubular member having a proximal end, a distal end, and a lumen extending therebetween, the elongate tubular member being configured to penetrate a body cavity of a patient. The instrument may further include a wicking member extending beyond the distal end of the elongate tubular member. The wicking member may be configured to secure a volume of treatment fluid delivered through the lumen to the wicking member for application from the wicking member to target tissue in the body cavity.

Abstract: A system and method for a diaphragm-based fluidics aspiration system is disclosed. The aspiration system includes a waste reservoir configured to hold a vacuum pressure; an aspiration connection; a vacuum pinch valve including a first outlet fluidically coupled to the waste reservoir; a second outlet fluidically coupled to the aspiration connection; a fluid channel; and an actuator configured to alter a cross-sectional area of the fluid channel.

Abstract: Systems and methods are disclosed for obtaining rheological properties of viscoelastic medium, and in particular, in-vivo evaluation of body fluid such as the vitreous. The system includes a needle-like probe having a distal and a proximal end, a rotational actuator, and a sensor coupled to the rotational actuator. The proximal end of the probe is configured for attachment to the rotational actuator. The distal proximal end of the probe has a roughened outer circumferential surface extending axially along at least a portion of the distal end, wherein the roughed distal end of the probe is configured to be disposed within the viscoelastic medium, and wherein the sensor is configured to obtain measurements corresponding rotation of the probe within the viscoelastic medium.

Abstract: In a general aspect, a syringe terminates the dispensing of a fluid based on a force applied to a plunger member of the syringe. In some aspects, a plunger member of a syringe includes a top portion, a bottom portion, and a contact portion. The top and bottom portions are in contact with the contact portion, and the bottom portion has a length greater than or equal to a length of the top portion. The contact portion permits the top portion to move independent of the bottom portion in response to a stress in the contact portion exceeding a critical stress. The stress in the contact portion is based on a first force applied to the top portion and a second force opposite the first force applied to the bottom portion.

Abstract: Surgical instruments and, particularly, ophthalmic surgical instruments are disclosed. Example surgical instruments include forceps for removal of an internal limiting membrane (ILM). The example forceps may include a textured surface formed at a distal end of the forceps jaws. The textured surface may have a plurality of microposts that operate to increase a coefficient of friction between the ILM and the forceps in order to reduce a normal force, applied by the forceps, needed to engage the ILM.

Abstract: An ophthalmic surgical system enabling pressure measurements proximal to the eye may include an illumination probe having a probe tip configured for insertion through an incision in an eye of a patient. The probe tip may include a distal end of an optical fiber, wherein the distal end of the optical fiber includes a first reflective surface and a second reflective surface. The first and second reflective surfaces being separated by a cavity, wherein the second reflective surface is provided by a partially transparent wall forming an exterior surface of the distal end of the optical fiber.

Abstract: An ophthalmic surgical system enabling pressure measurements proximal to the eye may include an illumination probe having a probe tip configured for insertion through an incision in an eye of a patient. The probe tip may include a distal end of an optical fiber, wherein the distal end of the optical fiber includes a first reflective surface and a second reflective surface. The first and second reflective surfaces being separated by a cavity, wherein the second reflective surface is provided by a partially transparent wall forming an exterior surface of the distal end of the optical fiber.

Abstract: Methods and systems for performing an ophthalmic surgical treatment procedure include one or more wicking members to secure a volume of treatment fluid to a distal end of a surgical instrument. Such a surgical instrument may include an elongate tubular member having a proximal end, a distal end, and a lumen extending therebetween, the elongate tubular member being configured to penetrate a body cavity of a patient. The instrument may further include a wicking member extending beyond the distal end of the elongate tubular member. The wicking member may be configured to secure a volume of treatment fluid delivered through the lumen to the wicking member for application from the wicking member to target tissue in the body cavity.

Abstract: Systems, apparatuses, and methods of and for an ophthalmic surgical system are disclosed. In an exemplary implementation, an ophthalmic surgical system includes a patch sized and shaped to seal a retinal break of an eye by preventing fluid from infiltrating a sub-retinal space when adhered to the retina surrounding the retinal break; and a delivery device including a cannula configured to maintain the patch in a furled state for passage through an incision in the eye, the delivery device actuatable to deploy the patch within a vitreous chamber of the eye. In another exemplary implementation, an ophthalmic surgical method includes damaging tissue around a retinal break; delivering, into the vitreous chamber, a patch sized and shaped to seal the retinal break; positioning the patch on the retina surrounding the retinal break; and affixing the patch to the retina such that the patch prevents fluid from infiltrating a sub-retinal space.

Abstract: Systems and methods are disclosed for obtaining rheological properties of viscoelastic medium, and in particular, in-vivo evaluation of body fluid such as the vitreous. The system includes a needle-like probe having a distal and a proximal end, a rotational actuator, and a sensor coupled to the rotational actuator. The proximal end of the probe is configured for attachment to the rotational actuator. The distal proximal end of the probe has a roughened outer circumferential surface extending axially along at least a portion of the distal end, wherein the roughed distal end of the probe is configured to be disposed within the viscoelastic medium, and wherein the sensor is configured to obtain measurements corresponding rotation of the probe within the viscoelastic medium.