Minimally invasive medical apparatus for dispensing a biologically active compound and an associated medical procedure for dispensing a biologically active compound

• US 6,302,873 B1
• Filed: 02/23/2000
• Issued: 10/16/2001
• Est. Priority Date: 02/23/2000
• Status: Expired due to Term

• Current Assignee: Rondevoo Technologies, LLC (2S Ventures, LLC)
• Original Assignee: Stephen P. Moenning
• Inventors: Moenning, Stephen P.
• Primary Examiner(s): Seidel, Richard K.
• Assistant Examiner(s): THANH, LOAN H
• Application Number:
  US09/511,100
• Time in Patent Office: 601 Days
• Field of Search: 604/506, 604/500, 604/507-508, 604/164.01, 604/158, 604/160, 604/164.09, 604/164.11, 604/171, 604/272, 604/264, 604/265, 604/266
• US Class Current: 604/506
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3474 Insufflating needles, e.g. Veress needles
• CPC Class Codes: A61B 2017/3437 with means for removing or absorbing fluid, e.g. wicks or absorbent pads
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system
• CPC Class Codes: A61B 90/40 Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment

Abstract

A medical apparatus for dispensing a biologically active compound. The medical apparatus includes a sleeve, wherein (1) the sleeve has a working channel defined therein through which medical instruments may be advanced, (2) the sleeve includes a fluid delivery channel which is distinct from the working channel, (3) the fluid delivery channel has an exit, and (4) the sleeve includes a housing having an interior cavity defined therein. The medical apparatus also includes an insufflation valve in fluid communication with the working channel. The insufflation valve is positionable between an open position and a closed position such that (i) when the insufflation valve is located in the open position an insufflation gas can be advanced into the working channel and (ii) when the insufflation valve is located in the closed position the insufflation gas is prevented from being advanced into the working channel. The medical apparatus further includes a chemical container having an interior void defined therein for receiving the biologically active compound, wherein the interior void is in fluid communication with the exit through the fluid delivery channel when the chemical container is positioned within the interior cavity of the housing such that the biologically active compound may be delivered through the fluid delivery channel to an outer surface of the sleeve.

Claims

1. A medical procedure for dispensing a biologically active compound, comprising said steps of:

creating an opening in a wall of a non-vascular body cavity;

advancing a medical apparatus through said opening and into said non-vascular body cavity, said medical apparatus including a trocar assembly having (1) a cannula and a trocar, wherein (A) said cannula has a working channel defined therein through which medical instruments may be advanced, (B) said cannula includes a fluid delivery channel which is distinct from said working channel, and (C) said fluid delivery channel has an exit, and (2) a chemical container having an interior void defined therein for receiving said biologically active compound, said interior void being in fluid communication with said exit through said fluid delivery channel; and

advancing said biologically active compound from said interior void of said chemical container onto an exterior surface of said cannula through a fluid path defined by said fluid delivery channel.

2. The medical procedure of claim 1, wherein:

said biologically active compound advancing step includes a step of positioning said medical apparatus relative to said opening such that an amount of said biologically active compound is transferred from said exterior surface of said cannula to a side wall of said opening.

3. The medical procedure of claim 1, wherein:

said fluid delivery channel includes a groove defined in a surface of said cannula.

4. The medical procedure of claim 1, wherein:

said trocar is positionable between a first trocar position and a second trocar position,

said trocar is positioned within said working channel of said cannula when said trocar is positioned at said first trocar position, and

said trocar is completely removed from said working channel of said cannula when said trocar is positioned at said second trocar position.

5. The medical procedure of claim 1, wherein:

said fluid delivery channel is defined in a wall of said cannula.

6. A medical procedure for dispensing a biologically active compound, comprising the steps of:

creating an opening in a wall of a body cavity;

advancing a medical apparatus through the opening and into the body cavity, said medical apparatus including a trocar assembly having (1) a cannula and a trocar, wherein (A) said cannula has a working channel defined therein through which medical instruments may be advanced, (B) said cannula includes a fluid delivery channel which is distinct from said working channel, and (C) said fluid delivery channel has an exit port, and (2) a chemical container having an interior void defined therein for receiving said biologically active compound, said interior void being in fluid communication with said exit port through said fluid delivery channel;

advancing a gas into said body cavity;

visualizing the body cavity; and

advancing said biologically active compound from said interior void of said chemical container onto an exterior surface of said cannula through a fluid path defined by said fluid delivery channel.