Apparatus and method for improved insufflation
First Claim
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1. An insufflating apparatus comprising:
- a source of pressurized gas;
an elongated conduit connected to the source for conducting the gas from the source, the conduit having a distal end adaptable for directing the gas into and out of a body cavity;
a regulator connected to the conduit so that the gas from the source flows through the regulator to the distal end, the regulator being responsive to an electronic signal for increasing and decreasing the gas pressure in the conduit for maintaining the gas pressure in the conduit within a pressure range defined by a minimum pressure level and a maximum pressure level, the regulator decreasing the pressure by bleeding gas from the conduit; and
a safety relief valve connected to the conduit between the source and the distal end for relieving gas pressure within the conduit whenever the pressure within the conduit exceeds a second pressure level that is substantially higher than the maximum pressure level of the pressure range.
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Abstract
The flow of insufflating gas is adjustable and regulated to prevent excessive pressure in the body cavity. A filter removes particulate matter from the gas entering the body and removes bacterial and viral matter from the gas leaving the body cavity.
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Citations
7 Claims
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1. An insufflating apparatus comprising:
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a source of pressurized gas; an elongated conduit connected to the source for conducting the gas from the source, the conduit having a distal end adaptable for directing the gas into and out of a body cavity; a regulator connected to the conduit so that the gas from the source flows through the regulator to the distal end, the regulator being responsive to an electronic signal for increasing and decreasing the gas pressure in the conduit for maintaining the gas pressure in the conduit within a pressure range defined by a minimum pressure level and a maximum pressure level, the regulator decreasing the pressure by bleeding gas from the conduit; and a safety relief valve connected to the conduit between the source and the distal end for relieving gas pressure within the conduit whenever the pressure within the conduit exceeds a second pressure level that is substantially higher than the maximum pressure level of the pressure range. - View Dependent Claims (2, 3, 4, 5)
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6. A method of safely insufflating a gas into and out of a body cavity, comprising the steps of:
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providing a source of pressurized gas; conducting gas from the source through a conduit and into a body cavity; connecting a safety relief valve to the conduit between the source and the body cavity to relieve gas pressure in the conduit in the event the gas pressure in the conduit exceeds a first pressure level; regulating the pressure in the conduit by maintaining the gas pressure in the conduit within a pressure range defined by a minimum pressure level and a maximum pressure level, the maximum pressure level being substantially lower than the first pressure level, and by bleeding gas from the conduit in response to the gas pressure in the conduit exceeding the maximum pressure level; and filtering the gas in the conduit with a filter that filters the gas irrespective of the direction the gas flows in the conduit. - View Dependent Claims (7)
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Specification