WO2016185060A1 - Catheter for pancreatic drainage - Google Patents

Catheter for pancreatic drainage Download PDF

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Publication number
WO2016185060A1
WO2016185060A1 PCT/ES2016/070283 ES2016070283W WO2016185060A1 WO 2016185060 A1 WO2016185060 A1 WO 2016185060A1 ES 2016070283 W ES2016070283 W ES 2016070283W WO 2016185060 A1 WO2016185060 A1 WO 2016185060A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
section
wall
catheter
pancreatic
characterized
Prior art date
Application number
PCT/ES2016/070283
Other languages
Spanish (es)
French (fr)
Inventor
Uriarte Angel Celdran
Original Assignee
Fundacion Instituto De Investigacion Sanitaria Fundacion Jimenez Diaz
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes

Abstract

The invention relates to a catheter for pancreatic drainage, having a tubular structure and a flexible nature, and having a first section (1) of a small calibre, less than 3mm in diameter, and a second section (2) of a greater calibre, length and resistance. In the wall thereof, the first section (1) is provided with through-openings (3) and an external intermediate projection (4) having a curved surface, and the second section (2) has a wall of greater resistance to bending than the first section, and has a nozzle (5) at the free end thereof for connecting to a suction source.

Description

PANCREATIC DRAINAGE CATHETER

DESCRIPTION Field of the Invention

The present invention relates to a catheter for draining fluid from pancreatic secretion, especially designed for use in pancreatic surgery. State of the art

In pancreatic resection surgery after excision of the pancreas head, or duodenopancreatectomy, must perform reconstruction of digestive tract through a series of anastomosis. The most sensitive of these is that carried out between the pancreatic duct, once severed the pancreas, and the light of a handle or small bowel segment as the pancreatic duct is of a very small size (less than 3mm under normal conditions), and pancreatic tissue around it is very friable, which motivates it difficult to apply it points suture tensile strength.

So far, in pancreatic anastomosis have been used thin tubes polyvinyl for tutorizar said anastomosis and prevent its collapse and thereby the appearance of pancreatic fistulas involving liquid passage pancreatic secretion into the abdominal cavity and the development of complications potentially serious. The efficacy of these tubes guardian has been until now on and questioned because of the risk of undesirable longitudinal movements and obliteration or collapse of said tubes, usually due to extrinsic compression to be externalised through the intestinal wall and through the abdominal wall. DESCRIPTION OF THE INVENTION

The present invention relates to a catheter for pancreatic surgery, allowing tutorizar pancreatic duct anastomoses with the handle or segment of the intestine of a safe and effective manner. Another object of the invention is to develop a catheter which allows, by connecting it to a vacuum system "low pressure", carry out the extraction of whole pancreas secretion, thus preventing the appearance of pancreatic fistulas.

The catheter is of tubular structure, of flexible nature and great length relative to its section, and comprises two sections of different strength and section, a first section of subcaliber, preferably with a diameter less than 3mm., And a second length of larger caliber, with reinforced wall, so that it is more resistant to collapse.

The first section is designed to be insertable through the pancreatic ducts, small gauge, and is provided in its wall holes through which held suction fluid pancreatic secretion, to connect the catheter to a vacuum source.

The first section also has a small external shoulder, curved surfaces, serving as means for fixing the catheter in the "mouth" of the pancreatic duct in which is inserted the catheter, avoiding accidental longitudinal displacement. Meanwhile, the second section is designed to be inserted through the wall of the intestinal segment and the abdominal wall, to be externalized and must allow these steps without suffering crushing or pronounced deformations, which could cause the collapse of the catheter. To do this second section is of larger section than the first section and is reinforced wall, for example through increased wall thickness or by application of a shirt or the second outer wall.

The second section is crowned at its free end in a nozzle, for example of standard type, for connection to a vacuum source. BRIEF DESCRIPTION OF THE DRAWINGS

In the accompanying drawings shows, by way non-limiting example, a possible embodiment of a catheter for pancreatic drainage, being: • Figure 1 a side view of a catheter constructed according to the invention.

• Figure 2 a longitudinal section of the catheter of Figure 1, on a larger scale.

• Figure 3 is detail A of figure 2, on a larger scale. Detailed Description of an embodiment

a first section (1) of smaller caliber, length and flexural strength and a second section (2) of greater diameter: in Figure 1 a catheter tubular structure and flexible nature, comprising two sections of different characteristics shown , length and strength, both the bending and crushing.

The section (1) is to be introduced into the pancreatic ducts, small gauge, so will have a diameter less than 3mm. Besides this first section (1) it has in its wall, as best seen in Figures 2 and 3, through holes (3) through which may pass the liquid pancreatic secretion.

The section (1) also has a small projection (4) of curved surfaces, which serve as holding means of this section into the pancreatic duct in which it is introduced.

As for the section (2), it is of greater length and diameter than the section (1) sufficient to cross the intestinal wall and the abdominal wall and projecting outside through its free end, which has fixed a nozzle, preferably standard type for connection to a vacuum source.

The section (2) has a reinforced wall, for example by increasing its thickness, so that it provides sufficient strength to avoid crushing during assembly through the bowel wall and abdominal wall, which would cause a collapse of the catheter .

Also the wall of the second section (2) may be constituted by a prolongation of the wall section (1), with equal thickness, and go equipped to throughout this section (2) of an outer reinforcing sleeve. Thanks to the characteristics of the first section (1), the catheter described makes tutorizar guarantees the anastomosis of the pancreatic duct or the handle segment of intestine. And thanks to the characteristics of the second section (2), the catheter can be removed without risk of collapse through the bowel wall and the abdominal wall. And it can carry out the removal of the entire pancreas secretion through the holes (3), connecting the nozzle (5) to a vacuum source.

Claims

What is claimed
1. Catheter for pancreatic drainage, tubular structure and flexible nature, characterized in that comprises a first section (1) of small caliber, less than 3mm diameter and a second section (2) of larger caliber, length and strength; whose first section (1) has in its wall through holes (3) and an external intermediate flange (4) of curved surface; and whose second section (2) has a greater wall flexural strength than the first section and has at its free end a nozzle (5) for connection to a suction source.
2. Catheter according to claim 1, characterized in that the wall of the second section (2) is thicker than the wall of the first section (1).
3. Catheter according to claim 1, characterized in that the wall of the second section (2) is approximately equal to the thickness of the wall of the first section (1) and is provided with an outer reinforcing sleeve.
PCT/ES2016/070283 2015-05-19 2016-04-20 Catheter for pancreatic drainage WO2016185060A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ESU201530587 2015-05-19
ES201530587U ES1140331Y (en) 2015-05-19 2015-05-19 Pancreatic drainage catheter

Publications (1)

Publication Number Publication Date
WO2016185060A1 true true WO2016185060A1 (en) 2016-11-24

Family

ID=53398598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2016/070283 WO2016185060A1 (en) 2015-05-19 2016-04-20 Catheter for pancreatic drainage

Country Status (2)

Country Link
ES (1) ES1140331Y (en)
WO (1) WO2016185060A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416532A (en) * 1964-07-24 1968-12-17 Grossman Alan Richard Drainage tube with means for scraping away debris therewithin
US3823720A (en) * 1972-06-21 1974-07-16 D Tribble Surgical drain
US4487600A (en) * 1981-11-09 1984-12-11 Brownlie Alan W Adjustable suction device for medical use
WO1985000016A1 (en) * 1983-06-14 1985-01-03 Mediplast Ab A suction catheter
US20060122575A1 (en) * 2002-06-11 2006-06-08 Akio Wakabayashi System and efficient drainage of body cavity
US20070203449A1 (en) * 2002-05-22 2007-08-30 Surgimark, Inc. Aspirator sleeve and suction handle
US20110288529A1 (en) * 2010-05-19 2011-11-24 Fulton Richard E Augmented delivery catheter and method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416532A (en) * 1964-07-24 1968-12-17 Grossman Alan Richard Drainage tube with means for scraping away debris therewithin
US3823720A (en) * 1972-06-21 1974-07-16 D Tribble Surgical drain
US4487600A (en) * 1981-11-09 1984-12-11 Brownlie Alan W Adjustable suction device for medical use
WO1985000016A1 (en) * 1983-06-14 1985-01-03 Mediplast Ab A suction catheter
US20070203449A1 (en) * 2002-05-22 2007-08-30 Surgimark, Inc. Aspirator sleeve and suction handle
US20060122575A1 (en) * 2002-06-11 2006-06-08 Akio Wakabayashi System and efficient drainage of body cavity
US20110288529A1 (en) * 2010-05-19 2011-11-24 Fulton Richard E Augmented delivery catheter and method

Also Published As

Publication number Publication date Type
ES1140331U (en) 2015-06-23 application
ES1140331Y (en) 2015-09-15 grant

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