Pressure relief for a catheter balloon device
First Claim
1. An inflation device for selectively inflating a balloon of a surgical instrument, the device comprising:
- a syringe including a plunger slidably disposed within a barrel;
a connector including a first inlet and a second inlet, the first inlet for fluidly connecting an outlet of the syringe with a surgical instrument balloon to establish a closed inflation system between the syringe and an interior of the balloon;
a mechanical pressure indicator fluidly coupled to the syringe through the second inlet, the mechanical pressure indicator including a housing and an indicator body disposed within the housing, the indicator body configured to transition from a non-alert state to an alert state when a pressure of the inflation system has reached a predetermined level, the indicator body extendable outside of the housing in the alert state; and
a relief port associated with the mechanical pressure indicator and configured to relieve a pressure of the inflation system when the system at least reaches the predetermined level.
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Accused Products
Abstract
An inflation device for selectively inflating a balloon of a surgical instrument including a syringe, a connector, a mechanical pressure indicator, and a relief port. The syringe includes a plunger slidably disposed within a barrel. The connector fluidly connects an outlet of the syringe with a surgical instrument balloon to establish a closed inflation system between the syringe and an interior of the balloon. The mechanical pressure indicator is associated with the syringe and configured to transition from a non-alert state to an alert state when a pressure of the inflation system has reached a predetermined level. The relief port is associated with the mechanical pressure indicator and configured to relieve a pressure of the inflation system when the system at least reaches the predetermined level.
153 Citations
20 Claims
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1. An inflation device for selectively inflating a balloon of a surgical instrument, the device comprising:
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a syringe including a plunger slidably disposed within a barrel; a connector including a first inlet and a second inlet, the first inlet for fluidly connecting an outlet of the syringe with a surgical instrument balloon to establish a closed inflation system between the syringe and an interior of the balloon; a mechanical pressure indicator fluidly coupled to the syringe through the second inlet, the mechanical pressure indicator including a housing and an indicator body disposed within the housing, the indicator body configured to transition from a non-alert state to an alert state when a pressure of the inflation system has reached a predetermined level, the indicator body extendable outside of the housing in the alert state; and a relief port associated with the mechanical pressure indicator and configured to relieve a pressure of the inflation system when the system at least reaches the predetermined level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An inflation device for selectively inflating a balloon of a surgical instrument, the device comprising:
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a syringe including a plunger slidably disposed within a barrel; a connector for fluidly connecting an outlet of the syringe with a surgical instrument balloon to establish a closed inflation system between the syringe and an interior of the balloon; a mechanical pressure indicator associated with the syringe and for indicating when the inflation system pressure has reached a first predetermined level; and a relief port for maintaining the inflation system pressure below a second predetermined level, wherein the second predetermined level is higher than the first predetermined level. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An inflation system for dilating a region of a patient'"'"'s nasal sinus passageways, the system comprising:
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a sinus dilation instrument including a probe configured to deliver a balloon to a paranasal sinus target site; and an inflation device for inflating the balloon, the inflation device comprising; a syringe assembly operable to deliver fluid through an outlet; a mechanical pressure indicator associated with the syringe assembly, the mechanical pressure indicator including a housing and an indicator body disposed within the housing, the indicator body configured to transition from a non-alert state to an alert state when a pressure of the inflation system has reached a predetermined level, the indicator body extendable outside of the housing in the alert state; a connector including a first inlet and a second inlet, the first inlet for fluidly connecting the outlet with the sinus dilation instrument to establish a closed inflation system between the syringe assembly and an interior of the balloon, the second inlet for connecting the mechanical pressure indicator with the syringe assembly; and a relief port associated with the mechanical pressure indicator and configured to relieve a pressure of the inflation system when the system exceeds the predetermined level. - View Dependent Claims (19, 20)
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Specification