Hemostatic device
AssigneeTerumo Kabushiki Kaisha
InventorKenichi HAZAMA
Life of this patent
Estimating the term…
Abstract
A hemostatic device has a band for being wrapped around a puncture site of a wrist, securing means for securing the band in a state where the band is wrapped around the wrist, and an inflation portion that interlocks with the band, and that is inflated by injecting gas. The inflation portion includes a first region which stretches when the gas is injected into the inflation portion, and a second region which is less likely to stretch compared to the first region and which is formed of a rigid material. The second region has a micropore which discharges the gas contained in the inflation portion with the lapse of time, in a state where the inflation portion is inflated.
Claims20
A hemostatic device comprising:
- a band adapted to be'wrapped around a limb of a patient at a site on the limb where bleeding is to be stopped;
- securing means for securing the band in a wrapped state around the limb;
- and
- an inflation portion disposed on an inner peripheral surface of the band, and adapted to be inflated by injecting gas;
- wherein the inflation portion includes a first region adapted to stretch when the gas is injected into the inflation portion, and a second region formed of a rigid material and adapted to stretch less than the first region;
- and
- wherein the second region has at least one micropore adapted to discharge the gas contained in the inflation portion with the lapse of time, in a state where the inflation portion is inflated.
hemostatic device according to claim 10, wherein, after four hour elapsed time, the internal pressure of the inflation portion is 30%-80% of an initial internal pressure of the inflation portion.
A method of using a hemostatic device, comprising:
- providing a hemostatic device including a band and an inflation portion having at least one micropore;
- wrapping the hemostatic device around a limb of a user and securing the band around the limb such that the inflation portion overlaps a puncture site on the limb;
- injecting an amount of a gaseous substance into the inflation portion such that the inflation portion inflates and a compressing force is applied to the puncture site;
- and
- reducing the compressing force on the puncture site over a predetermined period of time by discharging the gaseous substance through the at least one micropore in the inflation portion.
A hemostatic device comprising:
- a band configured to be wrapped around a limb of patient at a site on the limb where bleeding is to be stopped;
- means for securing the band in a wrapped state to the patient's limb;
- and
- an inflation portion disposed on an inner peripheral surface of the band and configured to be inflated by injecting gas;
- wherein the inflation portion includes a first region formed from a material having a first Young's modulus and a second region formed from a material having a second Young's modulus, the second Young's modulus being smaller than the first Young's modulus such that the first region is configured to stretch more than the second region when gas is injected into the inflation portion;
- and
- wherein the second region has at least one micropore configured to discharge gas contained in the inflation portion over a predetermined period of elapsed time.
Dependencies are inferred from the claim text.