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Sub-retinal tangential needle catheter guide and introducer

  • US 9,925,088 B2
  • Filed: 06/01/2015
  • Issued: 03/27/2018
  • Est. Priority Date: 06/06/2014
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • (a) a body, wherein the body comprises;

    (i) a body distal end,(ii) a body proximal end, and(iii) a fluid port;

    (b) a needle, wherein the needle projects distally from the body distal end, wherein the needle comprises;

    (i) a needle distal end,(ii) a needle proximal end, and(iii) an inner wall defining a needle lumen, wherein the needle lumen is in fluid communication with the fluid port;

    (c) a catheter, wherein the catheter is slidably disposed in the needle lumen, wherein the catheter comprises;

    (i) a catheter distal end,(ii) a catheter proximal end, and(iii) a catheter lumen; and

    (d) a first actuator assembly, wherein the first actuator assembly is configured to translate the catheter within and relative to the needle, wherein the first actuator assembly includes a translatable member slidably disposed within an interior portion of the body, wherein the translatable member is configured to slidably translate along a longitudinal axis of the body between proximal and distal positions, wherein the translatable member is rotationally fixed relative to the body,wherein the catheter extends proximally through the translatable member and a proximal end surface of the body, wherein the catheter is coupled to the translatable member and is configured to translate with the translatable member relative to the body and the needle in response to operation of the first actuator assembly.

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