Medical appliance

Patent metadata

Field	Value
Publication number	US-9597438-B2
Application number	US-201514753357-A
Country	US
Kind code	B2
Filing date	Jun 29, 2015
Priority date	Feb 3, 2011
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

A medical appliance, in particular an apparatus for extracorporeal blood treatment, has a housing including a door and with a handle mechanism arranged at the door, via which the door can be locked with the housing via a locking mechanism. A part of the locking mechanism is formed at the handle mechanism in a part thereof that protrudes into the housing. A form-fit unit includes at least one form-fit element and at least one form-fit element counterpart, such that on locking and/or closing the door, the at least one form-fit element at least partly engages in the at least one form-fit element counterpart.

First claim

What is claimed is:

1. A medical appliance comprising:
a housing;
a door pivotably connected to the housing;
a handle mechanism arranged at the door, the handle mechanism having a handle for gripping the handle mechanism arranged on an outside of the door, a part that protrudes, in a closed state of the door, into the housing, and a shaft extending through the door and rigidly connecting the handle mechanism and the part that protrudes, in the closed state of the door, into the housing; and
a locking mechanism via which the door can be locked with the housing, the locking mechanism including a first part arranged at the housing and a second part arranged at the part of the handle mechanism that protrudes, in the closed state of the door, into the housing;
the first part of the locking mechanism being interlockingly engageable with the second part of the locking mechanism in the closed state of the door, such that the part of the handle mechanism that protrudes, in the closed state of the door, into the housing can be interlocked with the housing,
the handle mechanism allowing a user, by gripping the handle mechanism, to open and close the door in case the door is unlocked, and to move the medical appliance in case that the door is locked,
the handle mechanism including the handle, the shaft, and the part that protrudes, in the closed state of the door, into the housing, and being movable in a longitudinal direction relative to the door,
the handle mechanism being connected to the door by a spring such that on closing the door by pushing the handle, the door first abuts with the housing, While the handle mechanism including the handle, the shaft, and the part that protrudes, in the closed state of the door, into the housing, continues to move longitudinally relative to the door into a locking position and thereby tensions the spring,
with the spring providing a closing force pressing the door against the housing in the locking position with the door closed and the first part and the second part of the locking mechanism interlocked,
with the locking mechanism being separately opened by a manipulation mechanism, and with the locking mechanism being unopenable by operating the handle.

2. The medical appliance according to claim 1 , further comprising a form fit unit that includes a form-fit element arranged at one of the part of the handle mechanism that protrudes, in the closed state of the door, into the housing and the housing, and a form-fit element counterpart arranged at the other of the part of the handle mechanism that protrudes, in the closed state of the door, into the housing and the housing, wherein upon at least one of closing and locking the door, the form-fit element at least partly engages in the form-fit element counterpart.

3. The medical appliance according to claim 2 , wherein one of the form-fit element and the form-fit element counterpart is formed integrally with the handle mechanism.

4. The medical appliance according to claim 2 , wherein the form-fit element is a tapered spigot and the form-fit element counterpart is a conical receptacle.

5. The medical appliance according to claim 2 , comprising a plurality of the form fit elements arranged in at least two planes.

6. The medical appliance according to claim 5 , wherein the at least two planes are arranged at a different distance from the plane of the door in a closed state of the door.

7. The medical appliance according to claim 1 , wherein the locking mechanism is opened by using a manipulation mechanism for changing the position of the first part of the locking mechanism arranged at the housing, in order to disengage the first part of the locking mechanism with the second part of the locking mechanism arranged at the part of the handle mechanism that protrudes, in the closed state of the door, into the housing.

8. The medical appliance according to claim 1 , further comprising a seal arranged between the door and the housing, and wherein the closing force of the spring is of a magnitude such that in the locking position, the seal is compressed substantially uniformly.

9. The medical appliance according to claim 1 , wherein the locking mechanism includes a pivotable hook which cooperates with a hook engager for locking and unlocking the door, and wherein the pivotable hook is arranged at the housing and the hook engager is arranged at the part of the handle mechanism that protrudes, in the closed state of the door, into the housing.

10. The medical appliance according to claim 9 , wherein the hook engager is a bolt.

11. The medical appliance according to claim 1 , wherein the door forms at least a part of a housing front.

12. The medical appliance according to claim 11 , wherein the door forms an entirety of the housing front.

13. The medical appliance according to claim 1 , wherein the door is rotatably mounted about a lower edge thereof, with the handle mechanism being arranged substantially at an upper end of the door.

14. A medical appliance comprising:
a housing;
a door pivotably connected to the housing;
a handle mechanism arranged at the door, the handle mechanism having a handle for gripping the handle mechanism arranged on an outside of the door, a part that protrudes, in a closed state of the door, into the housing, and a shaft extending through the door and rigidly connecting the handle mechanism and the part that protrudes, in the closed state of the door, into the housing; and
a locking mechanism via which the door can be locked with the housing, the locking mechanism including a first part arranged at the housing and a second part arranged at the part of the handle mechanism that protrudes, in the closed state of the door, into the housing;
the first part of the locking mechanism being interlockingly engageable with the second part of the locking mechanism in the closed state of the door, such that the part of the handle mechanism that protrudes, in the closed state of the door, into the housing can he interlocked with the housing,
the handle mechanism allowing a user, by gripping the handle mechanism, to open and close the door in case the door is unlocked, and to move the medical appliance in case that the door is locked,
the handle mechanism including the handle, the shaft, and the part that protrudes, in the closed state of the door, into the housing, and being movable in a longitudinal, direction relative to the door,
the handle mechanism being connected to the door by a spring such that on closing the door by pushing the handle, the door first abuts with the housing, while the handle mechanism including the handle, the shaft, and the part that protrudes, in the closed state of the door, into the housing, continues to move longitudinally relative to the door into a locking position and thereby tensions the spring,
with the spring providing a closing force pressing the door against the housing in the locking position with the door closed and the first part and the second part of the locking mechanism interlocked, and
the locking mechanism including a pivotable hook which cooperates with a hook engager for locking and unlocking the door, and the pivotable hook being arranged at the housing and the hook engager being arranged at the part of the handle mechanism that protrudes, in the closed state of the door, into the housing.

15. The medical appliance according to claim 14 , wherein the locking mechanism is separately opened by a manipulation mechanism, and wherein the locking mechanism is unopenable by operating the handle.

16. The medical appliance according to claim 14 , further comprising a f

Assignees

• Fresenius Medical Care Deutschand GmbH
• Fresenius Medical Care Deutschland Gmbh

Inventors

• Foerger Jens
• Oesterreich Stefan

Classifications

• E06B5/00

  Doors, windows, or like closures for special purposes {(insulated compound frames specially adapted for sliding doors or windows E06B3/26347)}; Border constructions therefor · CPC title

• E05B15/0245

  Movable elements held by friction, cooperating teeth, or the like · CPC title

• E05C3/045

  in the form of a hook (hook-like fastenings E05C19/10) · CPC title

• A61M2205/586

  Ergonomic details therefor, e.g. specific ergonomics for left or right-handed users · CPC title

• A61M1/14 Primary

  Dialysis systems; Artificial kidneys; Blood oxygenators (semi-permeable membranes characterised by the material, manufacturing processes therefor B01D71/00){; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis} · CPC title