BLOOD PRESSURE MONITOR WITH VALVE-CHAMBER ASSEMBLY
First Claim
1. A blood pressure measurement system, comprising:
- an inflatable cuff configured to encompass a limb of a patient;
a chamber assembly configured to house a gas canister having gas for inflating the inflatable cuff;
a valve assembly coupled to the chamber assembly; and
a gas pathway between the valve assembly and the inflatable cuff, wherein the valve assembly includes;
a valve comprising a high pressure cavity, a low pressure cavity, a first channel providing a gas pathway between the high pressure cavity and the low pressure cavity, and a second channel providing a gas pathway between the low pressure cavity and a valve output,a channel cover and a first pressure ring located within the high pressure cavity,a spring exerting an upward force on the channel cover and the first pressure ring to create a seal between the high pressure cavity and the first channel, anda rod extending from the low pressure cavity to the high pressure cavity via the first channel and exerting a downward force on the channel cover to provide a gas pathway between the high pressure cavity and the first channel.
4 Assignments
0 Petitions
Accused Products
Abstract
A blood pressure measurement system is provided that includes an inflatable cuff, a valve assembly and chamber assembly. The chamber assembly can house a gas canister for providing gas to the inflatable cuff. The valve assembly can include a valve having a high pressure cavity, a low pressure cavity, and a channel providing a gas pathway between the high pressure cavity and the low pressure cavity. The valve assembly can further include a channel cover and spring in the high pressure cavity. The spring can exert a force on the channel cover to create a seal between the high pressure cavity and the channel. The valve assembly can further include a rod extending through the channel and exerting a force on the channel cover to create a gas pathway between the high pressure cavity and the channel.
-
Citations
19 Claims
-
1. A blood pressure measurement system, comprising:
-
an inflatable cuff configured to encompass a limb of a patient; a chamber assembly configured to house a gas canister having gas for inflating the inflatable cuff; a valve assembly coupled to the chamber assembly; and a gas pathway between the valve assembly and the inflatable cuff, wherein the valve assembly includes; a valve comprising a high pressure cavity, a low pressure cavity, a first channel providing a gas pathway between the high pressure cavity and the low pressure cavity, and a second channel providing a gas pathway between the low pressure cavity and a valve output, a channel cover and a first pressure ring located within the high pressure cavity, a spring exerting an upward force on the channel cover and the first pressure ring to create a seal between the high pressure cavity and the first channel, and a rod extending from the low pressure cavity to the high pressure cavity via the first channel and exerting a downward force on the channel cover to provide a gas pathway between the high pressure cavity and the first channel. - View Dependent Claims (2)
-
-
3. A valve-chamber assembly, comprising:
-
a valve comprising a high pressure cavity, a low pressure cavity, a first channel providing a gas pathway between the high pressure cavity and the low pressure cavity, and a second channel providing a gas pathway between the low pressure cavity and a valve output; a channel cover and a first pressure ring located within the high pressure cavity; a spring exerting an upward force on the channel cover and the first pressure ring to create a first seal between the high pressure cavity and the first channel; and a rod extending from the low pressure cavity to the high pressure cavity via the first channel and exerting a downward force on the channel cover to provide a gas pathway between the high pressure cavity and the first channel. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A blood pressure measurement system, comprising:
-
an inflatable cuff configured to encompass a limb of a patient; a valve-chamber assembly configured to house a gas canister; and a gas pathway between the valve-chamber assembly and the inflatable cuff, wherein the valve-chamber assembly includes; a base, a bolt fitted through an open portion of the base, a torque limiter located within the base and at least partially surrounding a head of the bolt, an O-ring located between at least a portion of the torque limiter and the base, and a latch coupled to the base, wherein if a torque threshold is not satisfied, rotational movement of the latch in a first direction causes the bolt to rotate in the first direction and advance towards the gas canister, and wherein if the torque threshold is satisfied, rotational movement of the latch in the first direction causes the head of the bolt to slip through the torque limiter.
-
-
14. A valve-chamber assembly having a fastening assembly, the fastening assembly comprising:
-
a base; a bolt fitted through an open portion of the base; a torque limiter located within the base and at least partially surrounding a head of the bolt; an O-ring located between at least a portion of the torque limiter and the base; and a latch coupled to the base, wherein if a torque threshold is not satisfied, rotational movement of the latch in a first direction causes the bolt to rotate in the first direction and advance in a second direction, and wherein if the torque threshold is satisfied, rotational movement of the latch in the first direction causes the head of the bolt to slip through the torque limiter. - View Dependent Claims (15, 16, 17, 18)
-
-
19. A method for detecting a time to replace a gas canister, the method comprising:
-
monitoring an output pressure level of a valve; determining that the output pressure level satisfies a threshold pressure; and indicating that a corresponding gas canister should be replaced.
-
Specification