Hanging apparatus for fixing a medical device to a substantially horizontal or substantially vertical support structure

• US 7,770,855 B2
• Filed: 09/19/2007
• Issued: 08/10/2010
• Est. Priority Date: 09/19/2006
• Status: Active Grant

• Current Assignee: Solventum Intellectual Properties Company (Solventum Corp.)
• Original Assignee: KCI Licensing Incorporated (3M Company)
• Inventors: Tout, Aidan Marcus, Locke, Christopher Brian
• Primary Examiner(s): STERLING, AMY JO
• Application Number:
  US11/903,209
• Publication Number:
  US 20080077078A1
• Time in Patent Office: 1,056 Days
• Field of Search: 248/214, 248/220.21, 248/226.12, 248/228.2
• US Class Current: 248/230.2
• CPC Class Codes: A61H 2201/5056 pneumatically controlled
• CPC Class Codes: A61H 9/0057 Suction suction kneading A61H7/008
• CPC Class Codes: A61M 1/73 comprising sensors or indicators for physical values
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/90 Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
• CPC Class Codes: A61M 2205/15 Detection of leaks
• CPC Class Codes: A61M 2205/33 Controlling, regulating or measuring
• CPC Class Codes: A61M 2205/3327 Measuring
• CPC Class Codes: A61M 2205/3331 Pressure; Flow
• CPC Class Codes: A61M 2205/3337 Controlling, regulating pressure or flow by means of a valve by-passing a pump
• CPC Class Codes: A61M 2205/3379 Masses, volumes, levels of fluids in reservoirs, flow rates
• CPC Class Codes: A61M 2205/43 making noise when used correctly
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 5/1415 Stands, brackets or the like for supporting infusion accessories
• CPC Class Codes: A61N 1/0468 Specially adapted for promoting wound healing
• CPC Class Codes: A61N 2005/0661 ultraviolet
• CPC Class Codes: A61N 5/0616 Skin treatment other than tanning
• CPC Class Codes: F16M 11/046 adapted to upward-downward translation movement
• CPC Class Codes: F16M 11/048 adapted to forward-backward translation movement
• CPC Class Codes: F16M 13/02 for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
• CPC Class Codes: F16M 2200/027 : by friction
• CPC Class Codes: G01F 23/14 : by measurement of pressure

Abstract

A hanging apparatus is provided that facilitates the attachment of a medical instrument to a support structure. The mechanism includes a generally longitudinal, telescoping assembly that extends outward from the back of the medical instrument and positions a rotatable arm to serve as one face of a clamp, opposing the back of the medical instrument as the second face of the clamp. The mechanism assembly includes a cylindrical shaft that extends outward against the tension force of a spring from a housing component of the assembly. A cam mechanism within the hanging apparatus allows for locking and tightening of the clamp against the support structure after closure of the clamp under the influence of the tensioning spring.

Claims

1. A medical device hanging apparatus for facilitating the removable attachment of a medical instrument alternately to a vertical or a horizontal longitudinal support structure, the hanging apparatus comprising:

a clamp shaft, the clamp shaft rotatable about a central longitudinal axis and comprising a cylindrical tube fixed with a clamp arm extending orthogonally from the clamp shaft;

an internal shaft, the internal shaft comprising a longitudinal hollow structure positioned in telescoping fashion within the cylindrical tube of the clamp shaft;

a clamp knob, the knob fixed to a first end of the internal shaft, as the internal shaft extends through the clamp shaft, in a manner that positions the clamp arm generally between the knob and the balance of the longitudinal clamp shaft;

a tension spring, the spring positioned within and generally extending the length of the internal shaft, the spring fixed at a first end thereof to the first end of the internal shaft;

a clamp housing, the housing comprising a longitudinal enclosure generally surrounding the clamp shaft and providing an aperture through which the clamp shaft extends, the clamp arm and the knob positioned external to the housing, a second end of the tension spring fixed to a point on the housing distal to the aperture such that telescoping withdrawal of the clamp shaft through the aperture is resisted by the tension spring, the clamp housing fixed in association with the medical instrument; and

a rotational cam mechanism, the cam mechanism positioned between the clamp housing and the internal shaft wherein rotation of the internal shaft, as effected by rotation of the knob, directs a longitudinal movement of the internal shaft, the attached knob, and therefore the clamp arm, in a manner that tends to close the hanging apparatus.

2. The apparatus according to claim 1, wherein the cam mechanism further comprises:

first and second cam members fixed to the internal shaft and having complementary inclined surfaces;

a locking member rotatably positioned on the internal shaft between the complementary inclined surfaces of the first and second cam members, the locking member including a plurality of teeth.

3. The apparatus according to claim 1 further comprising:

a first plurality of teeth fixed to the clamp housing and positioned along the longitudinal enclosure of the clamp housing;

wherein the internal shaft includes a substantially flat surface;

wherein the cam mechanism further comprises;

first and second cam members fixed to the internal shaft and having complementary inclined surfaces; and

a locking member rotatably positioned on the internal shaft between the complementary inclined surfaces of the first and second cam members and including a second plurality of teeth, the locking member being positioned on the substantially flat surface of the internal shaft when the internal shaft is in an unlocked position, the locking member being moved off of the substantially flat surface when the internal shaft is rotated into a locked position such that the second plurality of teeth lockingly engage the first plurality of teeth.

4. The apparatus according to claim 3, wherein subsequent rotation of the internal shaft after being placed in the locked position results in a longitudinal movement of the internal shaft as the locking member follows the inclined surfaces of the first and second cam members.

5. The apparatus according to claim 3, wherein the first plurality of teeth are disposed on a housing cover of the clamp housing.

6. A medical device hanging apparatus for facilitating the removable attachment of a medical instrument alternately to a vertical or a horizontal longitudinal support structure, the hanging apparatus comprising:

a clamp housing defining a longitudinal enclosure along which are positioned a first plurality of teeth;

a clamp shaft retractably positioned within the longitudinal enclosure, the clamp shaft being rotatable about a central longitudinal axis and comprising a cylindrical tube fixed with a clamp arm extending from the clamp shaft;

an internal shaft having a substantially flat surface rotatably positioned within the cylindrical tube of the clamp shaft;

first and second cam members fixed to the internal shaft and having complementary inclined surfaces; and

a locking member rotatably positioned on the internal shaft between the complementary inclined surfaces of the first and second cam members and including a second plurality of teeth, the locking member being positioned on the substantially flat surface of the internal shaft when the internal shaft is in an unlocked position, the locking member being moved off of the substantially flat surface when the internal shaft is rotated into a locked position such that the second plurality of teeth lockingly engage the first plurality of teeth.

7. The apparatus according to claim 6, wherein subsequent rotation of the internal shaft after being placed in the locked position results in a longitudinal movement of the internal shaft relative to the clamp housing as the locking member follows the inclined surfaces of the first and second cam members.