Apparatus and method to form entry bleb for subretinal delivery of therapeutic agent
First Claim
1. An apparatus, comprising:
- (a) an injector, wherein the injector comprises;
(i) a body,(ii) a flexible cannula extending distally from the body,(iii) a flexible needle, wherein the flexible needle is configured to translate relative to the flexible cannula, and(iv) a sensor, wherein the sensor is operable to detect a position of the flexible needle relative to the flexible cannula;
(b) a first fluid conduit coupled with the flexible needle;
(c) a second fluid conduit coupled with the flexible needle; and
(d) a control module, wherein the control module is in communication with the sensor, wherein the control module is in communication with the first fluid conduit, wherein the control module is in communication with the second fluid conduit,wherein the control module is configured to provide automated delivery of a first fluid through the first fluid conduit to the flexible needle in response to distal movement of the flexible needle as sensed by the sensor,wherein the control module is further configured to provide delivery of a second fluid through the second fluid conduit to the flexible needle.
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Abstract
An apparatus includes an injector, a first fluid conduit, a second fluid line, and a control module. The injector includes a body, a flexible cannula, a flexible needle, and a sensor. The needle is configured to translate relative to the cannula. The sensor is operable to detect a position of the needle relative to the cannula. The first and second fluid lines are coupled with the needle. The control module is in communication with the sensor, with the first fluid conduit, and with the second fluid conduit. The control module is configured to provide delivery of a first fluid through the first conduit to the needle based on a signal from the sensor. The control module is further configured to provide delivery of a second fluid through the second conduit to the needle.
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Citations
19 Claims
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1. An apparatus, comprising:
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(a) an injector, wherein the injector comprises; (i) a body, (ii) a flexible cannula extending distally from the body, (iii) a flexible needle, wherein the flexible needle is configured to translate relative to the flexible cannula, and (iv) a sensor, wherein the sensor is operable to detect a position of the flexible needle relative to the flexible cannula; (b) a first fluid conduit coupled with the flexible needle; (c) a second fluid conduit coupled with the flexible needle; and (d) a control module, wherein the control module is in communication with the sensor, wherein the control module is in communication with the first fluid conduit, wherein the control module is in communication with the second fluid conduit, wherein the control module is configured to provide automated delivery of a first fluid through the first fluid conduit to the flexible needle in response to distal movement of the flexible needle as sensed by the sensor, wherein the control module is further configured to provide delivery of a second fluid through the second fluid conduit to the flexible needle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An apparatus, comprising:
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(a) an injector, wherein the injector comprises; (i) a body, (ii) a flexible cannula extending distally from the body, (iii) a flexible needle, wherein the flexible needle is configured to translate relative to the flexible cannula, and (iv) a sensor, wherein the sensor is operable to detect a position of the flexible needle relative to the flexible cannula; and (b) a control module, wherein the control module is in communication with the sensor, wherein the control module is configured to provide automated delivery of a combination of a first liquid and a gas through a first conduit to the flexible needle in response to distal movement of the flexible needle as sensed by the sensor, wherein the control module is further configured to provide delivery of a second fluid through a second conduit to the flexible needle after delivering the combination of the first liquid and the gas to the flexible needle. - View Dependent Claims (18)
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19. An apparatus, comprising:
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(a) an injector, wherein the injector comprises; (i) a body, (ii) a flexible cannula extending distally from the body, (iii) a flexible needle, wherein the flexible needle is configured to translate relative to the flexible cannula, and (iv) a sensor, wherein the sensor is operable to detect a position of the flexible needle relative to the flexible cannula; (b) a first fluid conduit coupled with the flexible needle; (c) a second fluid conduit coupled with the flexible needle; and (d) a control module, wherein the control module is in communication with the sensor, wherein the control module is in communication with the first fluid conduit, wherein the control module is in communication with the second fluid conduit, wherein the control module is configured to provide delivery of a first fluid through the first fluid conduit to the flexible needle based on a signal from the sensor, wherein the control module is further configured to provide delivery of a second fluid through the second fluid conduit to the flexible needle wherein the control module is configured to provide at least one of an audible tone, illumination of a light, or generation of tactile feedback to indicate to an operator when the flexible needle is in a fully proximal position or a fully distal position.
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Specification