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US 9,084,847 B2Granted
Surgical fluid management systems and methods
AssigneeIogyn, Inc.
InventorsKyle Klein, Aaron Germain, Csaba Truckai, Michael D. Walker
Life of this patent
Estimating the term…
Abstract
A surgical fluid management system delivers fluid for distending a uterine cavity to allow cutting and extraction of uterine fibroid tissue, polyps and other abnormal uterine tissue. The system comprises a fluid source, fluid deliver lines, one or more pumps, and a filter for re-circulating the distension fluid between the source and the uterine cavity. A controller can monitor fluid retention by the patient.
Claims20
A medical fluid management system, comprising:
- a first fluid line;
- a first pump configured to carry distension fluid from a fluid source through the first fluid line to a body cavity;
- a second fluid line;
- a third fluid line;
- a second pump configured to deliver fluid through the second fluid line from the body cavity, through a filter, and through the third fluid line from the filter back to the fluid source;
- a controller;
- and
- a pressure sensor in a flow path that is fluidly separate from the first, second, and third fluid lines, the flow path communicating with the body cavity for providing intra-cavity pressure signals to the controller, wherein the controller is configured to control activation of the first and second pumps in response to the intra-cavity pressure signals.
5 more elements
A medical fluid management system, comprising:
- a first fluid line;
- an inflow pump configured to carry distension fluid from a fluid source through the first fluid line to a body cavity;
- a second fluid line;
- a third fluid line;
- a filtering system fluidly coupled between the second fluid line and the third fluid line;
- an outflow pump configured to deliver fluid through the second fluid line from the body cavity, through the filtering system, and through the third fluid line from the filtering system back to the fluid source;
- a controller;
- and
- a pressure sensor in a flow path that is fluidly separate from the first, second, and third fluid lines, the flow path communicating with the body cavity for providing intra-cavity pressure signals to the controller, wherein the controller is configured to control activation of the inflow and outflow pumps in response to the intra-cavity pressure signals.
6 more elements
A medical fluid management system, comprising:
- an endoscope including an elongate shaft having a fluid inflow channel extending through the elongate shaft of the endoscope;
- a tissue extraction device including an elongate shaft having a tissue-extraction channel extending through the elongate shaft of the tissue extraction device;
- a first fluid line fluidly coupled to the fluid inflow channel of the endoscope;
- a second fluid line fluidly coupled between the tissue-extraction channel of the tissue extraction device and a filtering system;
- a third fluid line fluidly coupled to the filtering system with the filtering system between the second and third fluid lines;
- an inflow pump configured to move distension fluid from a fluid source through the first fluid line to a body cavity through the fluid inflow channel of the endoscope;
- an outflow pump configured to move fluid through the second fluid line from the body cavity, through the filtering system, and through the third fluid line from the filtering system back to the fluid source;
- a controller;
- and
- a pressure sensor in a flow path that is fluidly separate from the first, second, and third fluid lines, the flow path communicating with the body cavity for providing intra-cavity pressure signals to the controller, wherein the controller is configured to control activation of the inflow and outflow pumps in response to the intra-cavity pressure signals.
7 more elements
Dependencies are inferred from the claim text.