Ulnar compression device

Patent metadata

Field	Value
Publication number	US-11446040-B2
Application number	US-201916529383-A
Country	US
Kind code	B2
Filing date	Aug 1, 2019
Priority date	Aug 6, 2018
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

In some examples, a tissue compression device includes a base including a major surface configured to engage a dorsal surface of a hand of a patient, a flexible backing adjustably mechanically connected to the base and configured to engage a palmar surface of the hand when the dorsal surface of the hand is engaged with the base, and an expandable member mechanically connected to the flexible backing. The expandable member is configured to be positioned over an ulnar region of the patient when the palmar surface of the hand is engaged with the flexible backing and the dorsal surface of the hand is engaged with the base, such that inflation of the expandable member may apply pressure to tissue near the ulnar artery of the patient.

First claim

What is claimed is:

1. A tissue compression device comprising:
a base comprising a major surface configured to engage a dorsal surface of a hand of a patient, the hand being connected to an arm of the patient, the base comprising:
a first lip extending from the major surface and configured to engage an ulnar border of the hand when the dorsal surface of the hand is engaged with the base; and
a second lip extending from the major surface and configured to engage a radial border of the hand when the dorsal surface of the hand is engaged with the base:
a flexible backing adjustably mechanically connected to the base and configured to engage a palmar surface of the hand and at least one of a wrist or a forearm of the arm when the dorsal surface of the hand is engaged with the base, the wrist being proximal to the hand and the forearm being proximal to the wrist; and
an expandable member mechanically connected to the flexible backing, wherein the expandable member is configured to be positioned over an ulnar region of the patient when the palmar surface of the hand and the at least one of the wrist or the forearm are engaged with the flexible backing and the dorsal surface of the hand is engaged with the base, the ulnar region being proximal to the hand, and wherein the expandable member is configured to apply pressure to the ulnar region.

2. The tissue compression device of claim 1 , wherein the expandable member comprises a bladder configured to inflate to at least a pressure to cause compression of tissue near an ulnar artery of the patient.

3. The tissue compression device of claim 1 , wherein the base comprises a plurality of base attachment structures, wherein the flexible backing comprises a plurality of backing attachment structures, and wherein each backing attachment structure of the plurality of backing attachment structures is configured to adjustably mechanically connect the flexible backing to a respective base attachment structure of the plurality of base attachment structures.

4. The tissue compression device of claim 3 , wherein at least one backing attachment structure of the plurality of backing attachment structures is configured to adjust a tension of the flexible backing to urge the dorsal surface of the hand of the patient toward the major surface of the base when the palmar surface of the hand is engaged with the flexible backing.

5. The tissue compression device of claim 1 , wherein the expandable member is removably mechanically connected to the flexible backing.

6. The tissue compression device of claim 1 , wherein the expandable member is integrally formed with the flexible backing.

7. The tissue compression device of claim 1 , wherein the flexible backing comprises a substantially inextensible material.

8. The tissue compression device of claim 1 , wherein at least one of the base or the flexible backing is configured to engage a left hand of the patient, a right hand of the patient, or both the left hand and the right hand of the patient.

9. The tissue compression device of claim 1 , wherein the base comprises a substantially rigid thermoplastic or a substantially rigid thermoset plastic.

10. The tissue compression device of claim 1 , wherein the base is configured to reduce a range of motion of a digit of the hand or a portion of the wrist of the patient when the dorsal surface of the hand is engaged with the first surface of the base.

11. The tissue compression device of claim 1 , wherein the base is configured to position the hand of the patient in a predetermined configuration when the dorsal surface of the hand is engaged with the major surface of the base.

12. The tissue compression device of claim 1 , wherein the expandable member comprises a first expandable member, the tissue compression device further comprising a second expandable member mechanically connected to the flexible backing, wherein the second expandable member is configured to be positioned over a radial artery of the patient when the palmar surface of the hand is engaged with the flexible backing and the dorsal surface of the hand is engaged with the base, the second expandable member being configured to apply pressure to the radial artery.

13. The tissue compression device of claim 12 , wherein the second expandable member comprises a bladder configured to inflate to at least a pressure to cause patent hemostasis of a vascular access site at the radial artery of the patient.

14. A tissue compression device comprising:
a rigid base comprising:
a major surface configured to engage a dorsal surface of a hand of a patient;
a radial lip extending from the major surface and configured to engage a radial border of the hand when the dorsal surface of the hand is engaged with the base; and
an ulnar lip extending from the major surface and configured to engage an ulnar border of the hand when the dorsal surface of the hand is engaged with the base;

an inextensible flexible backing adjustably mechanically connected to the base and configured to engage a palmar surface of the hand to urge the dorsal surface of the hand toward the major surface of the base; and
an expandable member mechanically connected to the flexible backing, wherein the expandable member is configured to be positioned over an ulnar region of the patient when the palmar surface of the hand is engaged with the flexible backing and the dorsal surface of the hand is engaged with the base, and wherein the expandable member is configured to inflate to increase a volume of the expandable member.

15. The tissue compression device of claim 14 , wherein the expandable member is configured to be detached and subsequently reattached to the flexible backing.

16. A method comprising:
mechanically connecting a flexible backing of a tissue compression device to a first base attachment structure of a plurality of base attachment structures defined by or extending from a major surface of a base of the tissue compression device, wherein the major surface is configured to engage a dorsal surface of a hand of a patient; and
mechanically connecting the flexible backing to a second base attachment structure of the plurality of base attachment structures,
wherein the flexible backing is configured to be adjustably mechanically connected to the base, wherein the tissue compression device further comprises an expandable member mechanically connected to the flexible backing, wherein the expandable member is configured to be positioned over an ulnar region of the patient when the dorsal surface of the hand is engaged with the major surface of the base, wherein the expandable member is configured to apply pressure to tissue near an ulnar artery of the patient, and wherein the base comprises:
a first lip extending from the major surface and configured to engage an ulnar border of the hand when the dorsal surface of the hand is engaged with the base; and
a second lip extending from the major surface and configured to engage a radial border of the hand when the dorsal surface of the hand is engaged with the base.

17. The method of claim 16 , further comprising positioning the dorsal surface of the hand of the patient on the major surface of the base.

18. The method of claim 17 , further comprising, after positioning the dorsal surface of the hand of the patient on the major surface of the base, inflating the expandable member to cause compression of the tissue near the ulnar artery.

19. The method of claim 17 , further comprising, after positioning the dorsal surface of the hand of the patient on the majo

Assignees

• Medtronic Vascular Inc

Inventors

• Castelli Brian

Classifications

• A61B17/135 Primary

  inflatable · CPC title

• A61M5/425

  Protruding skin to facilitate piercing, e.g. vacuum cylinders, vein immobilising means · CPC title

• A61B2017/00955

  thermoplastic · CPC title

• A61B17/1325

  with means for applying local pressure (pressure pads A61F5/30) · CPC title

• A61B2017/00902

  transparent or translucent · CPC title