WO2024223032A1 - Gastrischer kalibrierschlauch - Google Patents
Gastrischer kalibrierschlauch Download PDFInfo
- Publication number
- WO2024223032A1 WO2024223032A1 PCT/EP2023/060843 EP2023060843W WO2024223032A1 WO 2024223032 A1 WO2024223032 A1 WO 2024223032A1 EP 2023060843 W EP2023060843 W EP 2023060843W WO 2024223032 A1 WO2024223032 A1 WO 2024223032A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hollow body
- flexible hollow
- elongated flexible
- gastric calibration
- gastric
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/90—Identification means for patients or instruments, e.g. tags
- A61B90/92—Identification means for patients or instruments, e.g. tags coded with colour
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00818—Treatment of the gastro-intestinal system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3937—Visible markers
Definitions
- the invention relates to a gastric calibration tube according to the preamble of claim 1.
- Gastric calibration tubes are known from the state of the art and can be used in surgical procedures, particularly in operations on the stomach and in bariatric procedures such as gastric resections, laparoscopic banded sleeve gastrectomy (LBSG), conventional sleeve gastrectomy (LCSG), fundoplication, gastric banding and, for example, gastric bypasses.
- the gastric calibration tube is used for the visible and palpable demarcation of parts of the stomach, the introduction of air or liquid (methylene blue) and the decompression, emptying and removal of liquids.
- the gastric calibration tube has an elongated, flexible hollow body that has an outer wall and a first and a second tube end.
- the second tube end can be inserted into the stomach via the mouth and the esophagus.
- the first tube end remains outside the body.
- Medical aids e.g. devices such as syringes, cannulas or devices that introduce air or liquids into the calibration tube can be connected to the first tube end.
- lead or discharge. Discharge can be achieved, for example, by generating a negative pressure in the calibration hose.
- the object of the present invention is to provide a gastric calibration tube which is further improved.
- the invention advantageously provides that the ratio between the wall thickness of the elongated flexible hollow body relative to the outer diameter of the elongated flexible hollow body is between 0.1 and 0.25.
- the present invention has the advantage that the gastric calibration tube does not kink when the wall thickness is appropriate relative to the outer diameter of the hollow body.
- a tube kinked it means that the flow of liquids or gases in the tube is disrupted or completely blocked.
- the kink can also damage the calibration tube.
- the kink can also mean that the second tube end cannot be guided to the anatomical target, e.g. the transition from the stomach to the duodenum.
- the elongated, flexible hollow body can consist of a material that contains silicone, preferably silicone rubber.
- the material, in particular the silicone rubber, can preferably have a Shore A hardness between 60 and 100. Due to the features of the invention, the gastric calibration tube is very difficult to cut through by a surgical stapler and/or is very difficult to staple over.
- the Shore hardness test is a simple and effective method for material testing and a simple procedure for measuring the hardness of elastomers and deformable base materials.
- Shore hardness is the resistance of a sample to the penetration of a conical body of certain dimensions under a defined compressive force. Depending on the design of the measuring body, a distinction is made between Shore A and Shore D. In this case, the information refers to Shore A hardness.
- the silicone rubber in particular has a Shore A hardness between 70 and 90.
- the flexible hollow body is elongated and has a longitudinal axis.
- the hollow body is therefore longer in a direction parallel to the longitudinal axis than it is wide in a direction perpendicular to the longitudinal axis.
- the term "in the region of the second hose end" is used, whereby the term is to be understood in such a way that this region comprises at least half of the calibration hose, which also comprises the second hose end.
- "in the region of” is to be understood in such a way that only 1/3, in particular 1 A, particularly preferably 1/5 of the calibration hose comprises the respective hose end.
- the elongated flexible hollow body can have at least such a kink resistance that, in the case of a hose section with a maximum length of 20 cm, the two hose section ends can be brought together and the hose section does not kink.
- the elongated flexible hollow body can further have at least such a kink resistance that, in the case of a hose section with a maximum length of 15 cm, the two hose section ends can be brought together and the hose section does not kink.
- Buckling resistance means the resistance of the hollow body to buckling.
- the ratio between the wall thickness of the elongated flexible hollow body relative to the outer diameter of the elongated flexible hollow body can be between 0.16 and 0.2.
- Outlet openings can be provided in the area of the second hose end.
- a closing element can be provided at the second end of the hose to close off the hollow body.
- the end element can be blunt. This allows the gastric calibration tube to be easily inserted through the esophagus into the stomach without damaging the tissue.
- the closure element may comprise a material comprising radiopaque material, preferably barium sulfate.
- the termination element can be located using X-ray equipment, for example. This can ensure that the calibration tubes are not lost in the body during surgery.
- the closing element can have at least one outlet opening.
- flexible hollow body In the present invention, the term flexible hollow body is used. Flexible in this context means that the hollow body can be bent. Preferably, it should be able to be bent by at least 90°.
- the material from which the end element is made may be softer than the material from which the elongated flexible hollow body is made.
- a material is softer when it deforms more quickly. For example, it deforms more quickly under pressure or other stresses.
- the material of the end element may comprise silicone, preferably silicone rubber.
- At least one color stripe can be arranged along the longitudinal direction of the elongated flexible hollow body.
- the color strip may differ in material and/or color from the elongated flexible hollow body.
- the color strip can be recessed into the elongated flexible hollow body so that the surface of the color strip is flush with the outer surface of the elongated flexible hollow body.
- the color strip can have a thickness that does not exceed the wall thickness of the elongated flexible hollow body. Thus, the color strip cannot penetrate the wall thickness of the hollow body.
- the elongated flexible hollow body can have first outlet openings on a first side of the hollow body in the region of the second hose end and second outlet openings on a second side of the hollow body opposite the first side.
- the first and second outlet openings can be arranged offset from each other.
- Fig. la a gastric calibration tube according to the present invention
- Fig. 1b a locking slide for closing the calibration tube
- Fig. 2 a section of the gastric calibration tube with outlet opening
- FIG. 3 the detail from Fig. 2 in a different side view and with color stripes
- Fig. 4 a cross-section of the gastric calibration tube
- Fig. 5 a longitudinal cross-section of a section of the gastric calibration tube
- Fig. 6 is another view of a section of the gastric calibration tube.
- Fig. la shows a gastric calibration tube 1.
- the gastric calibration tube 1 has an elongated flexible hollow body 2.
- the elongated flexible hollow body 2 has a longitudinal axis 60. Furthermore, the hollow body 2 has an outer wall 4.
- the hollow body 2 has a first tube end 7 and a second tube end 14.
- the second tube end 14 can surgically inserted into the stomach via the mouth and esophagus. The first end of the tube 7 remains outside the body.
- the gastric calibration tube 1 can be used in surgical procedures, in particular in operations on the stomach and in bariatric procedures such as gastric resections, laparoscopic banded sleeve gastrectomy (LBSG), conventional sleeve gastrectomy (LCSG), fundoplication, gastric banding and, for example, gastric bypasses.
- the gastric calibration tube 1 can be used for the visible and palpable demarcation of parts of the stomach as well as for the decompression, emptying and removal of gastric acid.
- the calibration hose 1 has a closing element 16 at the second hose end 14.
- the closing element 16 is blunt so that no injuries can occur when the second hose end 14 is inserted into the human body.
- the hollow body 2 has at least one channel 6. The channel 6 extends in the longitudinal direction of the hollow body 2.
- the gastric calibration tube 1 has at least one outlet opening 22 in the region of the second tube end 14.
- several outlet openings 22 are provided in the hollow body 2.
- the closing element 16 can also have at least one outlet opening 18 which opens into the channel 6.
- medical aids can be coupled to the channel 6, such as syringes, cannulas or devices that introduce or discharge air or liquids into the channel 6 of the calibration hose 1.
- a negative pressure can be generated in the channel 6 of the calibration hose 1.
- a negative pressure is also present at the outlet openings 22 and 18. In this way, suction can be carried out using the first channel 6.
- a connecting device 64 is provided which is connected to the first hose end, wherein the calibration hose 1 is inserted into the connecting device 64.
- the connecting device for coupling different medical aids has at least one second tapered depression and at least one tapered recess surrounding the second depression in a ring shape, so that the different medical aids can be optionally inserted into the second tapered depression or into the tapered recess for coupling.
- the calibration hose according to the invention can also be connected to a medical device without or with another connecting device.
- a closure slide 80 is also shown. This is shown in more detail in Fig. 1b.
- This has a passage opening 82 which has a first region 84 through which the calibration hose 1 can be guided without being clamped.
- the passage opening 82 has a second tapered region 87.
- the calibration hose is shown in more detail, whereby for clarity the first hose end 7 and the second hose end 14 are shown in more detail and the middle area of the hollow body 2 is left out. Furthermore, the connecting device 64 and the closure slide 80 are not shown in Fig. 2. In Fig. 2, the outlet openings 22 are shown on the second hose end 14.
- the closing element 16 can also be seen.
- the closing element 16 also has an outlet opening 18.
- the outer diameter of the closing element 16 can, as shown, have the same width as the diameter D of the elongated hollow body 2.
- Both the closing element 16 and the elongated flexible hollow body 2 can be made of silicone, preferably silicone rubber.
- the material of the elongated flexible hollow body 2 preferably has a Shore hardness A between 60 and 100. The Shore hardness A of the closing element 16 is preferably lower than the Shore hardness A of the flexible hollow body. The closing element 16 is therefore preferably softer than the hollow body 2.
- Fig. 3 shows the gastric calibration tube 1 from Fig. 2, but in a different side view.
- at least one color strip 30 can be arranged in the longitudinal direction of the elongated flexible hollow body along the elongated flexible hollow body 2.
- first outlet openings 22 can be arranged on a first side of the hollow body 2
- second outlet openings 23 can be arranged on a second side of the hollow body 2 opposite the first side.
- the first and second outlet openings 22, 23 are preferably arranged offset from one another.
- Fig. 4 shows a cross section through the elongated flexible hollow body 2 from Fig. 3.
- the outer diameter D of the elongated flexible hollow body and the inner diameter d can be seen.
- the wall thickness w is also shown.
- the ratio between the wall thickness w of the elongated flexible hollow body 2 relative to the outer diameter D of the elongated flexible hollow body is between 0.1 and 0.25, in particular between 0.16 and 0.20.
- a color strip 30 can be provided. This is an optional feature.
- the color strip can, as shown, be arranged recessed in the elongated flexible hollow body 2, so that the surface of the color strip is flush with the outer surface of the elongated flexible hollow body 2.
- the color strip has a width b and a thickness t.
- the thickness t of the color strip is preferably smaller than the wall thickness w of the hollow body 2, so that the wall of the hollow body 2 is not pierced or broken through.
- Fig. 5 shows a longitudinal section through the hollow body 2. It can be seen there once again that the first outlet openings 22 and the second outlet openings 23 are arranged offset from one another. It can also be seen that the outlet openings 22 and 23 have the diameter E.
- the diameter E is preferably between 2 and 6 mm.
- the distance S between the outlet openings 22 and 23 is preferably between 10 and 30 mm.
- the end element 16 is made of a material 20 which preferably contains barium sulfate and is thus detectable by X-ray methods.
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Gastroenterology & Hepatology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Instructional Devices (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2023/060843 WO2024223032A1 (de) | 2023-04-25 | 2023-04-25 | Gastrischer kalibrierschlauch |
| AU2023445437A AU2023445437A1 (en) | 2023-04-25 | 2023-04-25 | Gastric calibration tube |
| CN202380097157.8A CN120936307A (zh) | 2023-04-25 | 2023-04-25 | 胃校准管 |
| IL324180A IL324180A (en) | 2023-04-25 | 2025-10-23 | Gastric calibration tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2023/060843 WO2024223032A1 (de) | 2023-04-25 | 2023-04-25 | Gastrischer kalibrierschlauch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024223032A1 true WO2024223032A1 (de) | 2024-10-31 |
Family
ID=86331947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/060843 Pending WO2024223032A1 (de) | 2023-04-25 | 2023-04-25 | Gastrischer kalibrierschlauch |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN120936307A (de) |
| AU (1) | AU2023445437A1 (de) |
| IL (1) | IL324180A (de) |
| WO (1) | WO2024223032A1 (de) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6631720B1 (en) * | 1999-10-07 | 2003-10-14 | Archibald I. J. Brain | Laryngeal mask with large-bore gastric drainage |
| US20070038239A1 (en) * | 2003-05-27 | 2007-02-15 | Ritchie James D | Asymmetrically inflating flexi-tip gastroplasty calibration tube |
| JP2008104766A (ja) * | 2006-10-27 | 2008-05-08 | Kaneka Corp | 医療用チューブ |
| US20100137783A1 (en) * | 2002-11-21 | 2010-06-03 | Westfalische Wilhelms-Universitat Munster | Gastric tube and a method for introducing a gastric tube |
| US20140148731A1 (en) * | 2012-11-29 | 2014-05-29 | Boehringer Laboratories Llc | Gastric sizing systems including instruments for use in bariatric surgery |
| US20190105483A1 (en) * | 2017-10-06 | 2019-04-11 | Q Medical International Ag | Connector device for gastric calibration hoses, as well as medical system comprising a connector device for gastric calibration hoses and a gastric calibration hose |
| US20190224030A1 (en) * | 2010-06-23 | 2019-07-25 | Medical Innovation Developpement | Orogastric catheter for longitudinal gastrectomy |
| US20220117475A1 (en) * | 2019-01-22 | 2022-04-21 | Q Medical International Ag | Gastric calibration hose |
-
2023
- 2023-04-25 AU AU2023445437A patent/AU2023445437A1/en active Pending
- 2023-04-25 WO PCT/EP2023/060843 patent/WO2024223032A1/de active Pending
- 2023-04-25 CN CN202380097157.8A patent/CN120936307A/zh active Pending
-
2025
- 2025-10-23 IL IL324180A patent/IL324180A/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6631720B1 (en) * | 1999-10-07 | 2003-10-14 | Archibald I. J. Brain | Laryngeal mask with large-bore gastric drainage |
| US20100137783A1 (en) * | 2002-11-21 | 2010-06-03 | Westfalische Wilhelms-Universitat Munster | Gastric tube and a method for introducing a gastric tube |
| US20070038239A1 (en) * | 2003-05-27 | 2007-02-15 | Ritchie James D | Asymmetrically inflating flexi-tip gastroplasty calibration tube |
| JP2008104766A (ja) * | 2006-10-27 | 2008-05-08 | Kaneka Corp | 医療用チューブ |
| US20190224030A1 (en) * | 2010-06-23 | 2019-07-25 | Medical Innovation Developpement | Orogastric catheter for longitudinal gastrectomy |
| US20140148731A1 (en) * | 2012-11-29 | 2014-05-29 | Boehringer Laboratories Llc | Gastric sizing systems including instruments for use in bariatric surgery |
| US20190105483A1 (en) * | 2017-10-06 | 2019-04-11 | Q Medical International Ag | Connector device for gastric calibration hoses, as well as medical system comprising a connector device for gastric calibration hoses and a gastric calibration hose |
| US20220117475A1 (en) * | 2019-01-22 | 2022-04-21 | Q Medical International Ag | Gastric calibration hose |
Also Published As
| Publication number | Publication date |
|---|---|
| CN120936307A (zh) | 2025-11-11 |
| IL324180A (en) | 2025-12-01 |
| AU2023445437A1 (en) | 2025-11-06 |
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