Through-flow regulating device for a hose line of a medical infusion system

Patent metadata

Field	Value
Publication number	US-10220138-B2
Application number	US-201715596475-A
Country	US
Kind code	B2
Filing date	May 16, 2017
Priority date	May 19, 2016
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

A through-flow regulating device for a hose line of a medical infusion system having at least one rotationally movable clamping member which, in the mounted state, is operatively connected to the hose line and which can be manually adjusted relative to a hose section of the hose line in order to change a fluid through-flow rate of the hose section. Two clamping members mounted in a rotationally movable manner are provided, which flank a jacket of the hose section on opposite sides, and at least one clamping member has a circumferential contour which is formed, at least in sections, in an eccentric manner relative to an axis of rotation of the clamping member.

First claim

The invention claimed is:

1. A through-flow regulating device for a hose line of a medical infusion system that, in a mounted state, is operatively connected to the hose line and is manually adjustable relative to a hose section of the hose line in order to change a fluid through-flow rate of the hose section, the through-flow regulating device comprising:
two clamping members, wherein:
each clamping member is a cylindrical body rotationally movable about an axis of rotation, wherein the two axes of rotation of the two clamping members are parallel,
each cylindrical body has a circumferential edge having a circumferential contour,
the two clamping members are mounted in a rotationally movable manner wherein the hose section is extended in a longitudinal direction between the circumferential edges of the two clamping members,
the two clamping members flank a jacket of the hose section on opposite sides with their respective circumferential edges such that the two clamping members and the longitudinal extension direction of the hose section lie in a common radial plane,
the circumferential contour of at least a portion of at least one clamping member is formed in an eccentric manner relative to the axis of rotation of the at least one clamping member; and

a synchronizing device, wherein the two clamping members are mounted in a rotationally movable manner relative to the synchronization device such that the two clamping members move synchronously in opposite directions to one another using the synchronizing device, and wherein the synchronizing device has two circular-arc-shaped toothing sections that mesh with one another, wherein each circular-arc-shaped toothing section corresponds to a respective one of the two clamping members.

2. The through-flow regulating device according to claim 1 , wherein at least one of the two clamping members includes an eccentric clamping section on the circumferential contour of the at least one clamping member, the eccentric clamping section having a curved design with a radial supporting wall region and an axial supporting wall region that act upon the hose section on a jacket side relative to an axis of rotation of the at least one clamping member in dependence on a rotation of the at least one clamping member.

3. The through-flow regulating device according to claim 2 , wherein, in a circumferential direction of the at least one clamping section, a spacing of the radial supporting wall region relative to the axis of rotation of the at least one clamping member changes in a continuous manner over a length of the supporting wall region.

4. The through-flow regulating device according to claim 2 , wherein, in a circumferential direction of the at least one clamping section, a spacing of the radial supporting wall region relative to the axis of rotation of the at least one clamping member changes in a discontinuous manner over a length of the supporting wall region.

5. The through-flow regulating device according to claim 1 , wherein the two clamping members are each provided with eccentric clamping sections that are complementary to one another.

6. The through-flow regulating device according to claim 5 , wherein each of the eccentric clamping sections are of mirror-symmetric design relative to a diagonal plane.

7. The through-flow regulating device according to claim 1 , wherein the two clamping members are oriented relative to the hose section such that clamping forces of the two clamping members acting on the hose section lie in a common radial plane of both axes of rotation of the two clamping members.

8. The through-flow regulating device according to claim 1 , wherein each of the two circular-arc-shaped toothing sections are oriented co-axially relative to the axis of rotation of their respective clamping member.

9. The through-flow regulating device according to claim 1 , wherein each of the circular-arc-shaped toothing sections are provided in one piece on their respective clamping member.

10. The through-flow regulating device according to claim 1 , wherein an adjustment angle of each of the two clamping members between an open position, in which the hose section is open for a full fluid through-flow, and a blocked position, in which the hose section is closed for no fluid through-flow, is less than or equal to 90°.

11. The through-flow regulating device according to claim 10 , wherein a section angle covered by the respective circular-arc-shaped toothing section is at most 90°.

12. The through-flow regulating device according to claim 1 , wherein the two clamping members are mounted and held relative to one another.

13. The through-flow regulating device according to claim 12 , wherein the two clamping members are rotatably mounted in a carrier housing.

14. The through-flow regulating device according to claim 13 , wherein the carrier housing comprises a base shell and a cover shell, between which the two clamping members are arranged, wherein the base shell and the cover shell are connected to one another in a region of the axes of rotation of the two clamping members.

15. The through-flow regulating device according to claim 1 , wherein the two clamping members are identical.

16. A through-flow regulating device for a hose line of a medical infusion system that, in a mounted state, is operatively connected to the hose line and is manually adjustable relative to a hose section of the hose line in order to change a fluid through-flow rate of the hose section, the through-flow regulating device comprising:
two clamping members, wherein:
each clamping member is a cylindrical body rotationally movable about an axis of rotation, wherein the two axes of rotation of the two clamping members are parallel,
each cylindrical body has a circumferential edge having a circumferential contour,
the two clamping members are mounted in a rotationally movable manner wherein the hose section is extended in a longitudinal direction between the circumferential edges of the two clamping members,
the two clamping members flank a jacket of the hose section on opposite sides with their respective circumferential edges such that the two clamping members and the longitudinal extension direction of the hose section lie in a common radial plane, and
the circumferential contour of at least a portion of at least one clamping member is formed in an eccentric manner relative to the axis of rotation of the at least one clamping member; and

wherein each clamping member has at least one operating lever that projects outwardly relative to the axis of rotation of that clamping member in a direction opposite to the eccentric clamping section.

17. The through-flow regulating device according to claim 16 , wherein each clamping member has two operating levers which project in the manner of a rocker in different directions relative to the axis of rotation of the respective clamping member.

18. The through-flow regulating device according to claim 16 , wherein at least a portion of the at least one operating lever projects laterally outwards beyond the carrier housing.

Assignees

• Braun Melsungen Ag

Inventors

• Bolz Johannes

Classifications

• A61M39/284

  Lever clamps · CPC title

• A61M5/16813 Primary

  by controlling the degree of opening of the flow line · CPC title

• A61M39/285

  Cam clamps, e.g. roller clamps with eccentric axis · CPC title

• F16K7/065

  Cam clamps · CPC title