PHACOEMULSIFICATION HAND PIECE WITH INTEGRATED ASPIRATION AND IRRIGATION PUMP
First Claim
1. A phacoemulsification hand piece comprising:
- a body having a distal end and a proximal end;
an ultrasonic tip disposed at the distal end of the body and configured to aspirate an aspiration fluid from a surgical site;
a sleeve disposed at the distal end of the body configured to irrigate the surgical site with an irrigation fluid;
a removable cartridge disposed in the body and in fluid communication with the ultrasonic tip and the sleeve, wherein the cartridge comprises;
an aspiration conduit configured to contain the aspiration fluid; and
an irrigation conduit configured to contain the irrigation fluid; and
a pump disposed within the body and interfacing with the aspiration conduit and with the irrigation conduit, such that upon activation of the pump, the irrigation fluid within the irrigation conduit flows in a direction towards the sleeve and away from the proximal end, and the aspiration fluid within the aspiration conduit flows in a direction away from the tip and towards the proximal end.
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0 Petitions
Accused Products
Abstract
A method of irrigating a surgical site and aspirating fluid from the surgical site. The method includes directing a fluid through an aspiration conduit in a phacoemulsification hand piece using a vacuum pressure created from a pump in the hand piece interfacing with the aspiration conduit and directing an irrigation fluid through an irrigation conduit in the hand piece using a pressure created from the pump interfacing with the irrigation conduit. The method also includes increasing an irrigation fluid flow through the irrigation conduit by activating the pump in the hand piece, detecting a pressure associated with a surgical site using a sensor, and controlling intraocular pressure (IOP) by adjusting the pump speed based on the detected pressure.
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Citations
26 Claims
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1. A phacoemulsification hand piece comprising:
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a body having a distal end and a proximal end; an ultrasonic tip disposed at the distal end of the body and configured to aspirate an aspiration fluid from a surgical site; a sleeve disposed at the distal end of the body configured to irrigate the surgical site with an irrigation fluid; a removable cartridge disposed in the body and in fluid communication with the ultrasonic tip and the sleeve, wherein the cartridge comprises; an aspiration conduit configured to contain the aspiration fluid; and an irrigation conduit configured to contain the irrigation fluid; and a pump disposed within the body and interfacing with the aspiration conduit and with the irrigation conduit, such that upon activation of the pump, the irrigation fluid within the irrigation conduit flows in a direction towards the sleeve and away from the proximal end, and the aspiration fluid within the aspiration conduit flows in a direction away from the tip and towards the proximal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of irrigating a surgical site and aspirating fluid from the surgical site, comprising:
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directing a fluid through an aspiration conduit in a phacoemulsification hand piece using a vacuum pressure created from a pump in the hand piece interfacing with the aspiration conduit; directing an irrigation fluid through an irrigation conduit in the hand piece using a pressure created from the pump interfacing with the irrigation conduit; increasing an irrigation fluid flow through the irrigation conduit by activating the pump in the hand piece; detecting a pressure associated with a surgical site using a sensor; and controlling intraocular pressure (IOP) by adjusting the state of an aspiration valve based on the detected pressure. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An aspiration and irrigation system for irrigating the eye and aspirating fluid from the eye during an ocular surgery comprising:
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a phacoemulsification hand piece comprising; a graspable body having a distal end and a proximal end; an aspiration conduit configured to transport an aspiration fluid away from a surgical site; an irrigation conduit configured to transport an irrigation fluid towards the surgical site; a pump disposed within the hand piece, wherein at least a portion of the pump interfaces with the aspiration conduit and the irrigation conduit, such that upon activation of the pump, the irrigation fluid within the irrigation conduit flows in a direction towards the surgical site, and the aspiration fluid within the aspiration conduit flows in a direction away from the surgical site; a valve disposed within the hand piece configured to interface with the aspiration conduit, the valve configured to control a flow rate of aspiration fluid within the aspiration conduit; and a sensor detecting pressure representative of a surgical site pressure; and a controller in communication with the pump, the valve, and the sensor, wherein the controller is configured to control the operation of the pump and the valve based on information from the sensor; and wherein the controller is configured to change intraocular pressure (IOP) at the surgical site. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification