HEMOSTATIC DEVICE

• US 20180000494A1
• Filed: 09/15/2017
• Published: 01/04/2018
• Est. Priority Date: 07/15/2002
• Status: Active Grant

• Current Assignee: Terumo Kabushiki Kaisha
• Original Assignee: Terumo Kabushiki Kaisha
• Inventors: WADA, Satoshi, NUMATA, Shigeki, YAGI, Hiroshi
• Granted Patent: US 9,949,741 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 17/1325 with means for applying local pressure pressure pads A61F5/30
• CPC Class Codes: A61B 17/135 inflatable for measuring blood pressure A61B5/022; inflatable pressure pads A61F5/34
• CPC Class Codes: A61B 2017/00907 for light
• CPC Class Codes: A61B 2017/12004 for haemostasis, for prevention of bleeding
• CPC Class Codes: A61B 2090/3937 Visible markers

Abstract

A hemostatic device includes a flexible band adapted to be wrapped around a patient'"'"'s limb at a site on the limb where bleeding is to be stopped, a portion for securing the band in a wrapped state to the limb, a curved plate which is made of a material more rigid than the band and at least a portion of which is curved toward the inner peripheral side thereof, a main balloon which is provided on the inner peripheral side of the curved plate and which inflates when a fluid is introduced therein, and a pressing member which is provided between the curved plate and the main balloon so that at least a portion thereof overlaps with the balloon and which is adapted for pressing against the balloon. The device provides an excellent hemostatic effect and prevents numbness and poor circulation in areas peripheral to the site of attachment.

Claims

1. A hemostatic device configured to be applied to a limb of a patient, the hemostatic device comprising:

a flexible band to be applied to the limb of the patient in a wrapped state in which the flexible band is wrapped around at least a portion of the limb of the patient to apply the hemostatic device to the limb of the patient at a site where bleeding is to be stopped;

means for securing the band in the wrapped state to the patient'"'"'s limb;

a frame member made of a material more rigid than the flexible band, the frame member and the flexible band being connected to each other so that when the flexible band is in the wrapped state the frame member is positioned on the limb of the patient at the site on the limb where bleeding is to be stopped, the frame member possessing an inner peripheral side which faces toward the limb of the patient when the flexible band is in the wrapped state, a portion of the inner peripheral side of the frame member being a curved portion that is curved toward the inner peripheral side;

an inflatable balloon that is inflatable upon introducing fluid into the balloon, the balloon being located on the inner peripheral side of the frame member so that when the hemostatic device is applied to the limb of the patient the inflatable balloon is positioned between the frame member and the limb of the patient;

one part of the frame member overlapping the inflatable balloon and another part of the frame member not overlapping the inflatable balloon;

the inflatable balloon being located on the inner peripheral side of the frame member at a position deviated to a first end of the frame member from a center portion of the frame member in a lengthwise direction of the flexible band; and

a visually identifiable marker for positioning a center of the balloon at the site where bleeding is to be stopped, the inflatable balloon and the frame member being made of materials which the site where bleeding is to be stopped to be visualized through the inflatable balloon and the frame member.

2. The hemostatic device according to claim 1, wherein the frame member is a plate.

3. The hemostatic device according to claim 1, wherein the portion of the inner peripheral side of the frame member that is curved is a first part of the frame member, the frame member also possessing an outer peripheral side, the outer peripheral side of the first part of the frame member being curved.

4. The hemostatic device according to claim 1, wherein the portion of the inner peripheral side of the frame member that is curved is a first portion, a second portion of the inner peripheral side of the frame member being flat.

5. The hemostatic device according to claim 1, wherein the portion of the inner peripheral side of the frame member that is curved is a first portion, a second portion of the inner peripheral side of the frame member also being curved, the first and second portions of the of the inner peripheral side of the frame member being spaced apart with a flat portion of the inner peripheral side of the frame member located between the first and second portions of the inner peripheral side of the frame member.

6. The hemostatic device according to claim 1, wherein the frame member possesses a longitudinal extent, the flexible band overlapping at least a part of the longitudinal extent of the frame member.

7. The hemostatic device according to claim 1, wherein the frame member includes a second end opposite the first end, the flexible band including a first part that extends beyond the first end of the frame member and a second part that extends beyond the second end of the frame member.

8. The hemostatic device according to claim 1, wherein the frame member and the flexible band are connected to one another by virtue of a gap formed between two layers of the flexible band, and the frame member being positioned in the gap.

9. The hemostatic device according to claim 1, wherein the visually identifiable marker is visually identifiable by virtue of a shape of the marker.

10. The hemostatic device according to claim 1, wherein the visually identifiable marker is visually identifiable by virtue of a shape of the marker.

11. The hemostatic device according to claim 1, wherein the visually identifiable marker overlies the balloon when the flexible band is in the wrapped state.

12. A hemostatic device configured to be applied to a limb of a patient, the hemostatic device comprising:

a flexible band to be applied to the limb of the patient in a wrapped state in which the flexible band is wrapped around at least a portion of the limb of the patient to apply the hemostatic device to the limb of the patient at a site where bleeding is to be stopped;

means for securing the band in the wrapped state to the patient'"'"'s limb;

an elongated member made of a material more rigid than the flexible band, the elongated member possessing a longitudinal extent extending from one end of the elongated member to an opposite end of the elongated member;

the elongated member and the flexible band being connected to each other so that when the flexible band is in the wrapped state the elongated member is positioned on the limb of the patient at the site on the limb where bleeding is to be stopped, the elongated member possessing an inner peripheral side which faces toward the limb of the patient when the flexible band is in the wrapped state;

an inflatable balloon that is inflatable upon introducing fluid into the balloon, the balloon being located on the inner peripheral side of the elongated member so that when the hemostatic device is applied to the limb of the patient the inflatable balloon is positioned between the elongated member and the limb of the patient;

one part of the elongated member overlapping the inflatable balloon and another part of the elongated member not overlapping the inflatable balloon;

the inflatable balloon being located on the inner peripheral side of the elongated member at a position deviated to a first end of the elongated member from a center portion of the elongated member in a lengthwise direction of the flexible band;

the inner peripheral side of the elongated member possessing both a curved portion that is curved toward the inner peripheral side and a flat portion, the flat portion and the curved portion being arranged adjacent one another in the lengthwise direction of the elongated member; and

a visually identifiable marker for positioning a center of the balloon at the site where bleeding is to be stopped, the balloon and the elongated member being made of materials which allow the site where bleeding is to be stopped to be visualized through both the balloon and the elongated member.

13. The hemostatic device according to claim 12, wherein the flexible band includes a first part that extends beyond the one end of the elongated member and a second part that extends beyond the opposite end of the elongated member.

14. A hemostatic device configured to be applied to a limb of a patient, the hemostatic device comprising:

a flexible band to be applied to the limb of the patient in a wrapped state in which the flexible band is wrapped around at least a portion of the limb of the patient to apply the hemostatic device to the limb of the patient at a site where bleeding is to be stopped;

means for securing the band in the wrapped state to the patient'"'"'s limb;

an elongated member made of a material more rigid than the flexible band, the elongated member possessing a longitudinal extent extending from a first end of the elongated member to an opposite second end of the elongated member;

the elongated member and the flexible band being connected to each other so that when the flexible band is in the wrapped state the elongated member is positioned on the limb of the patient at the site on the limb where bleeding is to be stopped, the elongated member possessing an inner peripheral side which faces toward the limb of the patient when the flexible band is in the wrapped state;

an inflatable balloon that is inflatable upon introducing fluid into the balloon, the balloon being located on the inner peripheral side of the elongated member so that when the hemostatic device is applied to the limb of the patient the inflatable balloon is positioned between the elongated member and the limb of the patient;

one part of the elongated member overlapping the inflatable balloon and another part of the elongated member not overlapping the inflatable balloon;

the inner peripheral side of the elongated member possessing both a curved portion that is curved toward the inner peripheral side and a flat portion, the flat portion and the curved portion being arranged adjacent one another in the lengthwise direction of the elongated member;

the inflatable balloon being located on the inner peripheral side of the elongated member at a position deviated to the first end of the elongated member from a center portion of the elongated member in a lengthwise direction of the flat portion; and

a visually identifiable marker for positioning a center of the balloon at the site where bleeding is to be stopped, the balloon and the elongated member being made of materials which allow the site where bleeding is to be stopped to be visualized through both the balloon and the elongated member.

15. The hemostatic device according to claim 14, wherein the elongated member is a plate.

16. The hemostatic device according to claim 14, wherein the portion of the inner peripheral side of the elongated member that is curved is a first part of the elongated member, the elongated member also possessing an outer peripheral side, the outer peripheral side of the first part of the elongated member being curved.

17. The hemostatic device according to claim 14, wherein the portion of the inner peripheral side of the elongated member that is curved is a first portion, a second portion of the inner peripheral side of the elongated member also being curved, the flat portion of the inner peripheral side of the elongated member being located between the first and second portions of the inner peripheral side of the elongated member.

18. The hemostatic device according to claim 14, wherein the flexible band overlaps at least a part of the longitudinal extent of the elongated member.

19. The hemostatic device according to claim 14, wherein the flexible band includes a first part that extends beyond one end of the elongated member and a second part that extends beyond the opposite end of the elongated member.

20. The hemostatic device according to claim 14, wherein the elongated member and the flexible band are connected to one another by virtue of a gap formed between two layers of the flexible band, and the elongated member being positioned in the gap.