COMPRESSION UNIT AND A RADIAL ARTERY COMPRESSION SYSTEM

• US 20120296369A1
• Filed: 01/19/2011
• Published: 11/22/2012
• Est. Priority Date: 01/19/2010
• Status: Active Grant

• Current Assignee: St. Jude Medical Coordination Center BVBA (Abbott Laboratories Incorporated)
• Original Assignee: St Jude Medical Systems AB (Abbott Laboratories Incorporated)
• Inventors: Atthoff, Björn, Hansson, Erik, Preinitz, Fredrik, Mahlin, Fredrik
• Granted Patent: US 9,763,670 B2
• Time in Patent Office: Days
• US Class Current: 606/202
• CPC Class Codes: A61B 17/1322 comprising a flexible encircling member A61B17/135 takes precedence
• CPC Class Codes: A61B 17/1325 with means for applying local pressure pressure pads A61F5/30
• CPC Class Codes: A61B 17/1327 Tensioning clamps
• CPC Class Codes: A61B 17/135 inflatable for measuring blood pressure A61B5/022; inflatable pressure pads A61F5/34
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/00902 transparent or translucent
• CPC Class Codes: A61B 2017/00907 for light
• CPC Class Codes: A61B 2017/22059 transparent

Abstract

The invention relates to a compression unit adapted to be arranged around a patient'"'"'s forearm to provide pressure to a radial artery puncture site, wherein the compression unit comprises a unit attachment band provided with a frame, and a compression element in the shape of an inflatable bladder, the compression element is further adapted to be arranged within said frame, such that when the compression unit is arranged around a patient'"'"'s forearm, the compression element provides pressure to the puncture wound when the compression element is inflated. The invention also relates to a radial artery compression system.

Claims

1-24. -24. (canceled)

25. A compression unit adapted to be arranged around a patient'"'"'s forearm to provide pressure to a radial artery puncture site, characterized in that the compression unit comprises a unit attachment band provided with a frame, and a compression element in the shape of an inflatable bladder, the compression element is further arranged within said frame, such that when the compression unit is arranged around a patient'"'"'s forearm, the compression element provides pressure to the puncture wound when the compression element is inflated.

26. A compression unit according to claim 25, wherein said frame has an essentially rectangular shape.

27. A compression unit according to claim 25, wherein said compression element has an elongated extension, defining a longitudinal axis of the element, in the direction of an artery to which it is to be applied.

28. A compression unit according to claim 25, wherein the compression element is adapted to be attached to said frame by means of at least one mechanical joint.

29. A compression unit according to claim 28, wherein the compression element comprises bladder attachment means in the shape of loops attached to the outside of the inflatable bladder, and the frame comprises frame attachment means adapted to mate with said loops for holding said compression element in place in said frame.

30. A compression unit according to claim 25, wherein the compression element is attached to said frame by means of gluing or welding.

31. A compression unit according to claim 25, wherein the compression element comprises a first part adapted to face a puncture wound, and an opposite second part, the first part and the second part are adapted to be attached to each other.

32. A compression unit according to claim 31, wherein said first part and said second part are made of elastic material.

33. A compression unit according to claim 32, wherein said first part and said second part are at least partly made of materials with different elasticity.

34. A compression unit according to claim 31, wherein the said first part and said second part are made of non-elastic material.

35. A compression unit according to claim 25, wherein the compression element comprises a tube connection adapted to be connected to a tube for inflation of the compression element.

36. A compression unit according to claim 25, wherein the compression element is made from a transparent material, thereby providing the possibility of direct visual observation of the puncture wound, which facilitates the positioning of the compression element.

37. A compression unit according to claim 25, wherein said unit attachment band is fixated to the frame.

38. A compression unit according to claim 37, wherein the unit attachment band is provided with Velcro tape used to attach the unit to the arm of a patient.

39. A compression unit according to claim 37, wherein said unit attachment band is provided with holes and that the frame is provided with a mating attachment knob.

40. A radial artery compression system, characterized in that it comprises a compression unit according to claim 25, the system further comprises a dorsal forearm plate provided with a distal and a proximal attachment band, adapted to attach the dorsal forearm plate at the dorsal forearm of a patient, wherein the compression unit is adapted to be arranged around a patient'"'"'s forearm where said dorsal forearm plate is attached and fixated, such that the compression element provides pressure to a radial artery site.

41. A radial compression system according to claim 40, comprising a dorsal forearm plate having a three-dimensional concave shape adapted to the shape of the dorsal forearm such that the dorsal forearm may rest on the forearm plate, the dorsal forearm plate has an essentially rectangular extension having opposing long sides and opposing short sides and has a substantially rigid unitary body adapted to underlie the posterior of the patient'"'"'s hand, wrist and forearm, the shape of the side of the plate is further adapted to face the forearm during use, and is adapted to the anatomy of the forearm, and comprises two elongated depressions running in the longitudinal direction of the plate such that, and during use of the plate, the ulnar bone and radius bone of the patient rest in the respective depression, further is an elongated ridge, formed between the depressions, adapted to extend into the softer tissue between the bones in order to orient and stabilize the forearm when attached to the plate.

42. A radial compression system according to claim 41, comprising a dorsal forearm plate wherein the height of the elongated ridge at a cross-section A-A essentially at a midpoint of the plate in the longitudinal direction is at a level being in the interval of 10-50% of the total height of the plate at said cross-section A-A.

43. A radial compression system according to claim 40, wherein said attachment bands are provided with Velcro tape used to attach the plate to the arm of a patient.

44. A radial compression system according to claim 40, wherein said attachment bands are provided with holes and that the plate is provided with mating attachment knobs.

45. A radial compression system according to claim 41, wherein the dorsal forearm plate is essentially arc shaped in the longitudinal direction such that it rests only on its short sides when arranged on a plane surface, and that each of said short sides has an essentially straight supporting edge along a major part of its length and said supporting edges of said short sides being arranged in the same virtual plane.

46. A radial compression system according to claim 41, wherein the dorsal forearm plate is provided with a recess extending from the distal short side extending in the proximal direction such that an opening, having an essentially rectangular shape, is provided in the plate, e.g. to gain access to blood vessels at the dorsal side of the hand.

47. A radial compression system according to claim 40, wherein the surface of the dorsal forearm plate not intended to face the forearm is provided with a texture such that the friction is high and that said high friction surface extends at least along the mid third part of the plate.

48. A radial compression system according to claim 40, wherein the dorsal forearm plate is made from pressure moulded plastic.