ENDOSCOPIC PRESSURE DETECTION ASSEMBLY

• US 20130123661A1
• Filed: 07/26/2011
• Published: 05/16/2013
• Est. Priority Date: 07/26/2010
• Status: Abandoned Application

• Current Assignee: Steerable Instruments BVBA
• Original Assignee: Steerable Instruments BVBA
• Inventors: Dewaele, Frank, Kalmar, Alain, Blanckaert, Bart, Mabilde, Cyriel
• Application Number:
  US13/812,245
• Publication Number:
  US 20130123661A1
• Time in Patent Office: Days
• US Class Current: 600/561
• CPC Class Codes: A61B 1/00128 mechanical, e.g. for tubes or pipes
• CPC Class Codes: A61B 1/015 Control of fluid supply or evacuation
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 1/12 with cooling or rinsing arrangements
• CPC Class Codes: A61B 5/03 Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs A61B5/205 takes precedence
• CPC Class Codes: A61M 2025/0004 having two or more concentrically arranged tubes for forming a concentric catheter system
• CPC Class Codes: A61M 2025/0037 characterized by lumina being arranged side-by-side
• CPC Class Codes: A61M 2025/0175 having telescopic features, interengaging nestable members movable in relations to one another
• CPC Class Codes: A61M 25/002 Packages specially adapted therefor combined with means for introducing catheters, e.g. dispensers, A61M25/0113; catheter kit packages for surgical articles A61B50/30
• CPC Class Codes: A61M 25/0021 characterised by the form of the tubing A61M25/0054 takes precedence
• CPC Class Codes: A61M 25/0097 characterised by the hub connectors A61M39/10
• CPC Class Codes: A61M 25/01 Introducing, guiding, advancing, emplacing or holding catheters A61M25/10 takes precedence
• CPC Class Codes: A61M 25/0111 Aseptic insertion devices

Abstract

A pressure detection assembly (100) adapted for use with a continuous flow endoscope (200) provided with a rinse inlet lumen (234) connected to a rinse inlet port (254) said assembly (100) comprising: (i) an elongated member (10) having a proximal (20) and distal (30) end, (ii) a pressure detecting body (50) at the distal (30) end of the elongated member (10), configured to provide an indication of ambient pressure, (iii) a coupling (40) disposed over the elongated member (10), configured for dismountable attachment to the proximal rinse inlet port (254) of the endoscope (200), (iv) said elongated member (10) configured to conduct the indication of ambient pressure to its proximal (20) end, (v) said elongated member (10) further configured for advancement through the rinse inlet lumen (234), and (vi) said fluidic coupling (40) further configured to isolate fluidicly the proximal (20) tip of the elongated member (10) from the rinse inlet port (254) of the endoscope (200).

Claims

1. A pressure detection assembly (100) adapted for use with a continuous flow endoscope (200) provided with a rinse lumen (232, 234) connected to a rinse port (250, 254) said assembly (100) comprising:

an elongated member (10) having a proximal (20) and distal (30) end,

a pressure detecting body (50) at the distal (30) end of the elongated member (10), configured to provide an indication of ambient pressure,

a coupling (40) disposed over the elongated member (10), configured for dismountable attachment to the proximal rinse port (250, 254) of the endoscope (200),

said elongated member (10) configured to conduct the indication of ambient pressure to its proximal (20) end,

said elongated member (10) further configured for advancement through the rinse lumen (232, 234) and to maintain the flow functioning of the rinse lumen, and

said fluidic coupling (40) further configured to isolate fluidicly the proximal (20) tip of the elongated member (10) from the rinse port (250, 254) of the endoscope (200) wherein;

the elongated member (10) is a single lumen (15) catheter (12),

the pressure detecting body (50) comprises the distal (30) tip of the catheter incorporating an open port (14) in fluidic connection with the catheter lumen (15), and

the indication of ambient pressure is conducted by the catheter (12) using hydrostatic force.

2. A pressure detection assembly (100) according to claim 1, wherein the continuous flow endoscope (200) is provided with a rinse inlet lumen (234) connected to a rinse inlet port (254), and

the rinse port to which the coupling (40) is configured for dismountable attachment is the rinse inlet port (254),

the rinse lumen through which the elongated member (10) is configured for advancement through is the rinse inlet lumen (234) and maintains the flow functioning of the rinse inlet lumen (234), and

the rise port from which the fluidic coupling (40) is configured to isolate fluidicly the proximal (20) tip of the elongated member (10) from is the rinse inlet port (254).

3. Assembly (100) according to any of claims 1 to 3, wherein the distal tip (30) of the elongated member (10) is configured for locating flush or recessed to the distal (30) tip of the rinse lumen (232, 234).

4. Assembly (100) according to claim 3, wherein the distal tip (30) of the elongated member (10) is configured for locating at a distance of 0 mm, 0.1 mm, 0.2 mm, 0.4 mm, 0.6 mm, 1 mm, 2 mm, 3 mm, 4 mm, 6 mm, 8 mm, or 10 mm proximal to the distal tip of the rinse inlet lumen (234) or endoscope shaft (220).

5. Assembly (100) according to any of claims 1 to 4, wherein the coupling (40) is configured to separate fluid access to the rinse lumen (232, 234) from fluid access to the catheter (12) lumen (15).

6. Assembly (100) according to any of claims 1 to 5, wherein the coupling (40) comprises a Luer lock fitting.

7. Assembly (100) according to any of claims 1 to 6, wherein the diameter of the catheter (10, 12) is between 0.3 mm and 0.9 mm, preferably between 0.4 mm and 0.7 mm.

8. Assembly (100) according to any of claims 1 to 7, wherein the length of the catheter (10, 12) between the distal tip and the coupling is between 10 cm and 35 cm, preferably between 14 cm to 24 cm in length.

9. Assembly (100) according to any of claims 1 to 8, wherein the flow functioning of the rinse lumen is maintained when the fluid flow through the rinse lumen (234) at constant pressure is reduced by an amount equal to or less than 60% when the elongated member (10) is advanced therethrough.

10. A kit comprising:

an assembly (100) as defined in any of the previous claims, and

a continuous flow endoscope (200).

11. A method for adapting a continuous flow endoscope (200) with a rinse lumen (232, 234) connected to a rinse port (250, 254) to provide an ambient pressure measurement capability comprising the steps:

(a) providing a pressure detection assembly (100) as defined in any of claims 1 to 9,

(b) advancing the proximal end of the pressure detection assembly (100) through the rinse inlet port (254) of the endoscope (200), and

(c) engaging the coupling (40) with the rinse port (250, 254), thereby adapting the continuous flow endoscope (200) to provide an ambient pressure measurement capability.

12. A method for according to claim 11, wherein the rinse lumen (232, 234) is a rinse inlet lumen (234), and the rinse port (250, 254) is the rinse inlet port (254).

13. A method of preparing an assembly as defined to any of claims 1 to 9, comprising the step of attaching the fluidic coupling (40) to the shaft of the catheter (12) so as to allow separate fluid access to the rinse lumen (232, 234) and the catheter (12) lumen (15).