Apparatus and method for establishing and/or releasing a medical threaded connection through which a fluid can flow

Patent metadata

Field	Value
Publication number	US-11617872-B2
Application number	US-201816479935-A
Country	US
Kind code	B2
Filing date	Jan 29, 2018
Priority date	Jan 30, 2017
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

An apparatus is provided for producing and/or disengaging a fluid flow-capable medical threaded connection. The connection can be a Luer lock connection. The apparatus includes a first receiving device for receiving a first connecting element, and a second receiving device for receiving a second connecting element. The first receiving device and the second receiving device are rotatable relative to each other about a common screwing axis, and displaceable relative to each other along the screwing axis. The apparatus is designed to relatively move the first receiving device and the second receiving device toward and away from each other such that the first connecting element and the second connecting element can be screwed together or disengaged. An associated connecting element can be introduced into the first receiving device and/or into the second receiving device, in a radial direction relative to the screwing axis. A method is also provided.

First claim

The invention claimed is:

1. An apparatus for producing and/or disengaging a fluid flow-capable medical threaded connection of a first connecting element and a second connecting element, the apparatus comprising a first receiving device for receiving the first connecting element and a second receiving device for receiving the second connecting element, wherein
the first receiving device and the second receiving device are rotatable relative to each other about a common screwing axis and displaceable relative to each other along the screwing axis,
the apparatus is designed to relatively move the first receiving device and the second receiving device toward or away from each other after introduction of the first connecting element into the first receiving device and introduction of the second connecting element into the second receiving device, such that the first connecting element and the second connecting element are screwed together or a threaded connection between the first connecting element and the second connecting element is disengaged,
the respective connecting element is introduced into the respective first receiving device and/or the second receiving device in a radial direction relative to the screwing axis,
the apparatus comprises a spindle drive having a threaded spindle that is configured to be driven by a drive motor for generating the relative movement between the first receiving device and the second receiving device, wherein the threaded spindle is guided by means of at least one fixedly disposed bearing,
the first receiving device or the second receiving device is rotationally connected or connectable to the threaded spindle and arranged in a radial recess of the threaded spindle or formed by a radial recess in the threaded spindle.

2. The apparatus according to claim 1 , wherein the apparatus is designed to at least semi-automatically produce and/or disengage the threaded connection.

3. The apparatus according to claim 1 , wherein one of the two receiving devices is designed for receiving a first connecting element comprising a first connecting section having a sleeve-shaped internal thread arranged concentric to a first axis, with a male Luer lock connecting section, and the other receiving device is designed for receiving a second connecting element comprising a second connecting section having an external thread arranged concentric to a second axis with a female Luer lock connecting section.

4. The apparatus according to claim 1 , wherein one of the two receiving devices is arranged in a position-fixed manner and the other receiving device is axially displaceable along the screwing axis and rotatable about said screwing axis.

5. The apparatus according to claim 1 , wherein the apparatus comprises a first drive motor and a gear mechanism, the gear mechanism having a first gear element and at least one second gear element rotationally connected to the first gear element, and is configured to be driven by means of the first drive motor, for generating the relative movement between the first receiving device and the second receiving device, and the first receiving device or the second receiving device is rotationally connected or connectable to the first gear element.

6. The apparatus according to claim 5 , wherein the apparatus is designed to push the first receiving device and the second receiving device together along the screwing axis and/or pull them apart.

7. The apparatus according to claim 1 , wherein the first receiving device and/or the second receiving device is/are mounted on a gripper arm.

8. The apparatus according to claim 1 , wherein the apparatus is designed such that the first connecting element and the second connecting element of the threaded connection can be removed from the first receiving device and the second receiving device in the radial direction after the threaded connection between the first connecting element and the second connecting element has been made.

9. The apparatus of claim 1 , wherein the fluid flow-capable medical threaded connection is a Luer lock connection.

10. A method for producing and/or disengaging a fluid flow-capable medical threaded connection of a first connecting element and a second connecting element by means of an apparatus according to claim 1 , comprising the steps:
providing a first connecting element and a second connecting element to be connected to the first connecting element or the threaded connection to be disengaged,
introducing the first connecting element into the first receiving device of the apparatus,
introducing the second connecting element into the second receiving device of the apparatus, and
moving the first receiving device relative to the second receiving device such that the first connecting element and the second connecting element screw together or the threaded connection disengages, wherein
the first receiving device and/or the second receiving device comprises a gripper or is designed as a gripper, and
the first connecting element and/or the second connecting element, or the threaded connection, is/are introduced into one or both respective receiving devices in the radial direction relative to the screwing axis.

11. The method according to claim 10 , wherein after the threaded connection has been made, the first connecting element and the second connecting element of the threaded connection are removed from the first receiving device and the second receiving device, respectively, in the radial direction.

12. A cannulation robot comprising an apparatus in accordance with claim 1 .

Assignees

• Fresenius Medical Care Deutschland Gmbh

Inventors

• Arkossy Otto
• Daniel Pia
• Hauke Christopher
• Kopperschmidt Pascal
• Ritter Kai-Uwe
• Scholz Cacilia
• Schulte Elke
• Spickermann Reiner

Classifications

• B23P19/061

  for pipes or pipe-couplings · CPC title

• A61M2205/3327

  Measuring · CPC title

• A61M2039/1016

  Unlocking means providing a secure or comfortable disconnection · CPC title

• A61M2039/1033

  Swivel nut connectors, e.g. threaded connectors, bayonet-connectors · CPC title

• A61M2207/00

  Methods of manufacture, assembly or production · CPC title