Apparatus and method to stop bleeding
Inventors
PANCHOLY, SAMIR BIPIN • SARDESAI, NOLAN RAJENDRA • PANSE, MILIND PADMAKAR • Sardesai, Rajendra Gurudas
Assignees
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Publication Number
US-11653931-B2
Publication Date
2023-05-23
Expiration Date
Abstract
A hemostatic device is provided to stop bleeding at a puncture site on an artery of a patient, the device comprising a transparent flexible band to be wrapped at the site where the bleeding is to be stopped, a curved compression member having an inner peripheral side and possessing a first curved portion in its first half and a second curved portion in its second half, a first balloon provided on the inner peripheral side in the first half of the curved compression member and a second balloon provided on the inner peripheral side in the second half of the curved compression member. The bleeding from a first artery is stopped by compressing the first artery at the puncture site using inflation of the first balloon and blood flow in the first artery is increased by compression of a second artery using inflation of the second balloon.
Core Innovation
The invention relates to a transparent flexible-band hemostatic device configured to be wrapped around an arm that includes a radial artery and an ulnar artery. The device includes a flexible band with a securing portion to secure the band in a wrapped state and a longitudinal extent extending in a longitudinal direction. The device further includes an inflatable member connected to the flexible band and expandable upon introducing fluid into an interior of the inflatable member to press a part of the radial artery to be subjected to hemostasis, the inflatable member having oppositely facing surfaces.
The invention also includes a pressing member disposed at a position spaced from the inflatable member in the longitudinal direction of the flexible band to press the ulnar artery, the pressing member having oppositely facing surfaces. In described embodiments, the inflation of an inflatable member modulates radial artery hemostasis while a separately positioned pressing region acts to influence ulnar artery compression to help reduce radial artery occlusion risk.
The device is further described with structural and geometric embodiments that include curved, more-rigid compression structures, including a curved frame with rungs, a curved plate, and configurations with inserts or different inner-surface portions that position the inflatable and pressing members relative to the arm. In described embodiments, balloon fluid-introduction tubes and adapters with check-valves are provided, and surfaces may be formed from transparent materials.
Claims Coverage
The document excerpt provides three independent claims. Each independent claim focuses on an artery-hemostasis device using a flexible band plus separate spaced radial and ulnar pressing components, with additional requirements on geometry, rigidity, and surface/distance relationships for some claims.
Flexible band with spaced radial inflatable member and ulnar pressing member length/width relationship
A hemostatic device having a flexible band wrapped around an arm, an inflatable member connected to the flexible band and expandable upon introducing fluid to press a part of the radial artery, and a pressing member spaced from the inflatable member to press the ulnar artery, where the inflatable member and pressing member have oppositely facing surfaces and the pressing member has a length along the longitudinal direction different from its width along a direction orthogonal to the longitudinal direction.
More rigid compression member with surface distance condition during inflation
A hemostatic device having a flexible band, a securing portion, and a compression member held by the flexible band and made of a material more rigid than the flexible band material, an inflatable member expandable upon introducing fluid to press the radial artery, and a pressing member spaced in the longitudinal direction to press the ulnar artery, where distances measured from the compression member to a first surface of the inflatable member and to a third surface of the pressing member satisfy that the perpendicular distance to the inflatable first surface is longer than the perpendicular distance to the pressing third surface when inflated with contact between second and fourth surfaces and a portion of the band where the compression member is disposed.
Pressing projection on ulnar pressing member protruding feature
A hemostatic device having a flexible band wrapped around an arm, an inflatable member expandable upon introducing fluid to press a part of the radial artery, and a pressing member spaced from the inflatable portion to press the ulnar artery, where the pressing member includes a main body and a projection disposed on the main body and protruding with respect to the main body.
Overall, the independent claims cover an artery hemostatic device with a flexible band and separate spaced components for radial and ulnar compression, with claim-specific emphasis on a pressing member length/width relationship, a more rigid compression member and a perpendicular distance/surface-contact condition during inflation, and a protruding projection structure on the ulnar pressing member.
Stated Advantages
Reduces radial artery occlusion risk.
Documented Applications
Hemostasis of a radial artery puncture site and maintaining or augmenting radial artery blood flow while compressing the ulnar artery.
Antegrade flow/patency verification concept using plethysmography/Doppler/ultrasound.
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