Atraumatic arthroscopic instrument sheath

• US 9,364,204 B2
• Filed: 08/26/2014
• Issued: 06/14/2016
• Est. Priority Date: 01/29/2004
• Status: Active Grant

• Current Assignee: Psip2 LLC
• Original Assignee: Cannuflow Inc.
• Inventors: Kucklick, Theodore R., Trieb, Martin
• Primary Examiner(s): Leubecker, John P
• Application Number:
  US14/469,411
• Publication Number:
  US 20140364871A1
• Time in Patent Office: 658 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 1/00094 Suction openings
• CPC Class Codes: A61B 1/00131 Accessories for endoscopes
• CPC Class Codes: A61B 1/00135 Oversleeves mounted on the endoscope prior to insertion
• CPC Class Codes: A61B 1/015 Control of fluid supply or evacuation
• CPC Class Codes: A61B 1/317 for bones or joints, e.g. osteoscopes, arthroscopes
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 2017/00336 with a protective sleeve, e.g. retractable or slidable
• CPC Class Codes: A61B 2017/3445 used as instrument channel for multiple instruments catheters A61B2017/22072
• CPC Class Codes: A61B 2017/349 Trocar with thread on outside
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system
• CPC Class Codes: A61M 1/85 with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208
• CPC Class Codes: A61M 25/0662 Guide tubes
• CPC Class Codes: A61M 39/24 Check- or non-return valves

Abstract

A method of performing arthroscopic surgery using an arthroscopic inflow and outflow sheath which provides an improved inflow and outflow system reducing the diameter of a continuous flow system while eliminating the need for a third portal during arthroscopy. The improved arthroscopic inflow and outflow sheath comprises an elongated atraumatic sheath having an inner surface, outer surface, proximal end, and distal end. The atraumatic sheath further comprises plurality of ribs extending from the inner surface of the sheath and designed to contact an outer surface of the arthroscope creating outer lumens facilitating the inflow and outflow of fluid to a surgical site. The atraumatic sheath further comprises a ridge to prevent the sheath from being easily removed from a surgical site.

Claims

1. A method of performing arthroscopic surgery, said method comprising the steps of:

providing a system for performing arthroscopic surgery, said system comprising;

an arthroscopic instrument suitable for performing an arthroscopic surgical procedure;

an atraumatic sheath having an inner diameter sized and dimensioned to permit fluid flow between an inner surface of the sheath and an outer surface of the arthroscopic instrument disposed within the sheath, said sheath further having a plurality of ribs extending inwardly from the inner surface of said sheath and running longitudinally along said sheath;

wherein said ribs define outer lumens between the outer surface of the arthroscopic instrument and the inner surface of the sheath;

wherein said ribs further comprise flanges;

wherein the atraumatic sheath is adapted to be removably disposed over the arthroscopic instrument;

a sleeve having an outer surface and a bore extending therethrough, said bore having an inner diameter so sized and dimensioned as to frictionally fit over an outer diameter of the atraumatic sheath; and

a ridge disposed on the outer surface of the sleeve to prevent the arthroscopic instrument from being easily removed from a surgical site;

placing the sheath inside the sleeve;

placing the arthroscopic instrument inside the sheath; and

performing an arthroscopic surgical procedure with the system for performing arthroscopic surgery.

2. The method of claim 1 further comprising the step of providing substantially simultaneous inflow and outflow of fluid to an arthroscopic surgical site.

3. The method of claim 1 further comprising the step of providing substantially simultaneous inflow and outflow of fluid to an arthroscopic surgical site wherein the outflow of fluid is at a rate equal to or exceeding the inflow rate of fluid.

4. A method of performing arthroscopic surgery, said method comprising the steps of:

providing a system for performing arthroscopic surgery, said system comprising;

an arthroscopic instrument suitable for performing an arthroscopic surgical procedure;

an atraumatic sheath having an inner diameter sized and dimensioned to permit fluid flow between an inner surface of the sheath and an outer surface of the arthroscopic instrument disposed within the sheath, said sheath further having a plurality of ribs extending inwardly from the inner surface of said sheath and running longitudinally along said sheath;

wherein said ribs define outer lumens between the outer surface of the arthroscopic instrument and the inner surface of the sheath;

wherein said ribs further comprise flanges;

wherein the atraumatic sheath is adapted to be removably disposed over the arthroscopic instrument; and

a ridge disposed on the outer surface of the atraumatic sheath to prevent the arthroscopic instrument from being easily removed from a surgical site;

placing the arthroscopic instrument inside the sheath; and

performing an arthroscopic surgical procedure with the system for performing arthroscopic surgery.

5. The method of claim 4 further comprising the step of providing substantially simultaneous inflow and outflow of fluid to an arthroscopic surgical site.

6. The method of claim 4 further comprising the step of providing substantially simultaneous inflow and outflow of fluid to an arthroscopic surgical site wherein the outflow of fluid is at a rate equal to or exceeding the inflow rate of fluid.

7. A method of performing arthroscopic surgery, said method comprising the steps of:

providing a system for performing arthroscopic surgery, said system comprising;

an arthroscopic instrument suitable for performing an arthroscopic surgical procedure;

an atraumatic sheath having an inner diameter sized and dimensioned to permit fluid flow between an inner surface of the sheath and an outer surface of the arthroscopic instrument disposed within the sheath, said sheath further having a plurality of ribs extending inwardly from the inner surface of said sheath and running longitudinally along said sheath;

wherein said ribs define outer lumens between the outer surface of the arthroscopic instrument and the inner surface of the sheath;

wherein the atraumatic sheath is adapted to be removably disposed over the arthroscopic instrument;

a sleeve having an outer surface and a bore extending therethrough, said bore having an inner diameter so sized and dimensioned as to frictionally fit over an outer diameter of the atraumatic sheath;

a ridge disposed on the outer surface of the sleeve to prevent the arthroscopic instrument from being easily removed from a surgical site; and

wherein the atraumatic sheath is characterized by a distal portion, the distal portion having a plurality of holes in fluid communication with one or more lumens and the surgical site;

placing the sheath inside the sleeve;

placing the arthroscopic instrument inside the sheath; and

performing an arthroscopic surgical procedure with the system for performing arthroscopic surgery.

8. The method of claim 7 further comprising the step of providing substantially simultaneous inflow and outflow of fluid to an arthroscopic surgical site.

9. The method of claim 7 further comprising the step of providing substantially simultaneous inflow and outflow of fluid to an arthroscopic surgical site wherein the outflow of fluid is at a rate equal to or exceeding the inflow rate of fluid.

10. A method of performing arthroscopic surgery, said method comprising the steps of:

providing a system for performing arthroscopic surgery, said system comprising;

an arthroscopic instrument suitable for performing an arthroscopic surgical procedure;

an atraumatic sheath having an inner diameter sized and dimensioned to permit fluid flow between an inner surface of the sheath and an outer surface of the arthroscopic instrument disposed within the sheath, said sheath further having a plurality of ribs extending inwardly from the inner surface of said sheath and running longitudinally along said sheath;

wherein said ribs define outer lumens between the outer surface of the arthroscopic instrument and the inner surface of the sheath;

wherein the atraumatic sheath is adapted to be removably disposed over the arthroscopic instrument;

a ridge disposed on the outer surface of the atraumatic sheath to prevent the arthroscopic instrument from being easily removed from a surgical site; and

wherein the atraumatic sheath is characterized by a distal portion, the distal portion having a plurality of holes in fluid communication with one or more lumens and the surgical site;

placing the arthroscopic instrument inside the sheath; and

performing an arthroscopic surgical procedure with the system for performing arthroscopic surgery.

11. The method of claim 10 further comprising the step of providing substantially simultaneous inflow and outflow of fluid to an arthroscopic surgical site.

12. The method of claim 10 further comprising the step of providing substantially simultaneous inflow and outflow of fluid to an arthroscopic surgical site wherein the outflow of fluid is at a rate equal to or exceeding the inflow rate of fluid.