WO2022177476A1 - Device for mechanically extracting stones from the bile ducts - Google Patents
Device for mechanically extracting stones from the bile ducts Download PDFInfo
- Publication number
- WO2022177476A1 WO2022177476A1 PCT/RU2022/050049 RU2022050049W WO2022177476A1 WO 2022177476 A1 WO2022177476 A1 WO 2022177476A1 RU 2022050049 W RU2022050049 W RU 2022050049W WO 2022177476 A1 WO2022177476 A1 WO 2022177476A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thread
- tip
- threads
- removable
- detachable
- Prior art date
Links
- 239000004575 stone Substances 0.000 title claims abstract description 36
- 210000000013 bile duct Anatomy 0.000 title claims abstract description 18
- 239000004020 conductor Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 210000001953 common bile duct Anatomy 0.000 abstract description 3
- 238000001356 surgical procedure Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 4
- 206010004637 Bile duct stone Diseases 0.000 description 3
- 201000009331 Choledocholithiasis Diseases 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000004141 ampulla of vater Anatomy 0.000 description 2
- 230000007170 pathology Effects 0.000 description 2
- 210000003445 biliary tract Anatomy 0.000 description 1
- 201000001883 cholelithiasis Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000968 medical method and process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
Definitions
- the invention relates to the field of surgery, namely to surgical instruments for the mechanical extraction of stones from the common bile duct after performing endoscopic papillosphincterotomy [A61B 17/22, A61B 17/221].
- analogue in some cases the diameter of the calculus captured by the basket exceeds the diameter of the dissected outlet of the duct. In such cases, the calculus gets stuck in the duct along with the basket, blocking it. Release is performed by cutting off the proximal end of the basket. This allows you to remove the endoscope from the patient, but does not solve the problem of the basket left in the bile duct, and requires emergency surgical intervention, threatening serious complications and mortality in the range of 4-8%.
- the main technical problem of the prototype is the complexity of the process of releasing the basket from the captured stone, due to the complexity of the design and consisting in the loosening, return movement of the loop along the conductor, straightening the rigid loop with the release of the stone and retracting the basket in a straightened form into the conductor.
- the objective of the invention is to eliminate the disadvantages of the prototype.
- the technical result of the invention is to simplify the release of the device from the blocking calculus inside the bile duct.
- a device for mechanical removal of stones from the bile ducts containing a conductor and a basket formed by a pair of threads converging at one vertex, characterized in that one of the threads is made non-removable, and the other is removable with the possibility of release from calculus baskets, a tip is mounted at the top of the threads, while the said tip to the non-removable thread is mounted motionless, and the removable thread is passed through the hole in the said tip, an aglet is mounted on one of the ends of the removable thread, and a handle is mounted on the other, while the aglet is made with the possibility of pulling the tip with a non-removable thread from a captured calculus when pulling a removable thread by the handle.
- the conductor is made in the form of a catheter from a plastic tube.
- the threads are made of a sterile non-absorbable material.
- the hole in the tip for passing the removable thread is made transverse to the location of the non-removable thread.
- the ends of the fixed thread are connected by a clip.
- Figure 1 shows a General view of the device for mechanical removal of stones from the bile ducts.
- Figure 2 shows a General view of the device for mechanical removal of stones from the bile ducts with a captured stone.
- On fig.Z shows a General view of the device for mechanical removal of stones from the bile ducts at the time of release of the captured stone.
- the figures indicate: 1 - main thread, 2 - removable thread, 3 - catheter, 4 - tip, 5 - clamp, b - handle, 7 - aglet, 8 - stone. Implementation of the invention.
- Endoscopic papillosphincterotomy is a surgical minimally invasive intervention, which is performed in the presence of pathology of the major duodenal papilla, as well as when the bile ducts are clogged with stones.
- EMT Endoscopic papillosphincterotomy
- choledocholithiasis that is, the presence of stones in the bile ducts.
- the device for mechanical removal of stones from the bile ducts contains the main 1 (see Fig.1) and removable 2 threads made of durable flexible sterile non-absorbable material from a metal alloy or synthetic materials, an example of which is nitinol.
- the main 1 and 2 removable threads are folded in half and passed through a catheter 3 made of a plastic cylindrical tube.
- the ends of the threads 1, 2 are released from the opposite side of the tip 4 of the catheter 3 with a margin that provides free manipulation of the threads 1, 2 when capturing and extracting the calculus.
- the ends of the main thread 1 are interconnected by a clamp 5.
- a handle b is mounted, made in the form of an extended ring that provides a comfortable grip with fingers.
- an aglet 7 is mounted, while the size of the aglet 7 in cross section is made larger than the diameter of the hole tip 4, through which a removable thread 2 is passed, but sufficient for free movement inside the catheter B.
- a device for mechanical removal of stones from the bile ducts is used as follows.
- the patient Prior to endoscopic manipulation, the patient is prepared using known medical methods. For the operation, duodenoscopes are used, and an X-ray television installation is used for control.
- the papilla of Vater is dissected and a device for mechanical removal of stones into the bile duct is inserted through the duodenoscope, while the main 1 and removable 2 threads are preliminarily drawn into the catheter 3, leaving only the tip 4 outside, while due to the execution on the side of the mentioned tip 4, facing away from the catheter 3, streamlined on all sides of the protrusion provide tissue expansion and the passage of the device in the bile duct.
- the basket formed by the intersection of the threads 1, 2 is opened by pushing their ends out of the catheter 3. Pushing the threads 1, 2 out of the catheter 4 and pulling back the stone 8 in the choledochus is carried out with a loop formed by the main thread 1 and the girth of the stone 8 loop formed by a removable thread 2 (see Figure 2). Convinced with the help of X-ray control in the capture of the stone 8, threads 1, 2 are pulled, pulling the basket to the end of the catheter 3 and the device with the stone 8 is removed from the choledochus.
- the described device makes it easy to release the basket from the stone 8. To do this, release the ends of the main thread 1 and the end of the removable thread 2, on which is mounted aglet 7. By the handle b pull the detachable thread 2 through the tip 4, pulling the end with the aglet 7 to the mentioned ring 4.
- the proposed device allows you to expand the capabilities of the endoscopic method of treating choledocholithiasis and protect patients with choledocholithiasis from a situation that threatens them with blocking the calculus.
- the device can be used in hospitals treating complicated cholelithiasis.
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2021103838A RU2763646C1 (en) | 2021-02-16 | 2021-02-16 | Apparatus for mechanical removal of stones from bile ducts |
RU2021103838 | 2021-02-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022177476A1 true WO2022177476A1 (en) | 2022-08-25 |
Family
ID=80039921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2022/050049 WO2022177476A1 (en) | 2021-02-16 | 2022-02-15 | Device for mechanically extracting stones from the bile ducts |
Country Status (2)
Country | Link |
---|---|
RU (1) | RU2763646C1 (en) |
WO (1) | WO2022177476A1 (en) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1228837A1 (en) * | 1983-12-26 | 1986-05-07 | Новосибирский государственный медицинский институт | Arrangement for extracting foreign bodies from tubular hollow organs |
RU2082334C1 (en) * | 1993-07-01 | 1997-06-27 | Попович Сергей Николаевич | Device for removing concrements from hollow organs |
RU2147211C1 (en) * | 1996-03-29 | 2000-04-10 | Московский государственный институт стали и сплавов (технологический университет) | Trap for withdrawal of foreign bodies from hollow organs |
RU2153856C2 (en) * | 1996-01-17 | 2000-08-10 | Московский государственный институт стали и сплавов (технологический университет) | Device for withdrawal of foreign bodies from hollow organs |
RU2164093C2 (en) * | 1999-02-24 | 2001-03-20 | Хачин Владимир Николаевич | Extractor for removing foreign matter from hollow organs |
RU2195208C1 (en) * | 2001-06-14 | 2002-12-27 | Новиков Владимир Иванович | Device for concrements mechanical extraction |
US8246632B2 (en) * | 2009-07-01 | 2012-08-21 | Medwork Medical Products And Services Gmbh | Device for endoscopic removal of stones or concrements from a bile and pancreatic duct or foreign bodies and polyps subsequent to polypectomy in the upper or lower gastrointestinal tract |
RU2541818C2 (en) * | 2011-07-11 | 2015-02-20 | Грейт Эспирейшенз Лтд. | Device for gripping and removing objects from body cavity |
RU2664959C2 (en) * | 2016-11-30 | 2018-08-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный медицинский университет" Министерства здравоохранения Российской Федерации (ФГБОУ ВО СибГМУ Минздрава России) | Method and device for endoscopic lithotripsy of concrements in bile ducts |
-
2021
- 2021-02-16 RU RU2021103838A patent/RU2763646C1/en active
-
2022
- 2022-02-15 WO PCT/RU2022/050049 patent/WO2022177476A1/en active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1228837A1 (en) * | 1983-12-26 | 1986-05-07 | Новосибирский государственный медицинский институт | Arrangement for extracting foreign bodies from tubular hollow organs |
RU2082334C1 (en) * | 1993-07-01 | 1997-06-27 | Попович Сергей Николаевич | Device for removing concrements from hollow organs |
RU2153856C2 (en) * | 1996-01-17 | 2000-08-10 | Московский государственный институт стали и сплавов (технологический университет) | Device for withdrawal of foreign bodies from hollow organs |
RU2147211C1 (en) * | 1996-03-29 | 2000-04-10 | Московский государственный институт стали и сплавов (технологический университет) | Trap for withdrawal of foreign bodies from hollow organs |
RU2164093C2 (en) * | 1999-02-24 | 2001-03-20 | Хачин Владимир Николаевич | Extractor for removing foreign matter from hollow organs |
RU2195208C1 (en) * | 2001-06-14 | 2002-12-27 | Новиков Владимир Иванович | Device for concrements mechanical extraction |
US8246632B2 (en) * | 2009-07-01 | 2012-08-21 | Medwork Medical Products And Services Gmbh | Device for endoscopic removal of stones or concrements from a bile and pancreatic duct or foreign bodies and polyps subsequent to polypectomy in the upper or lower gastrointestinal tract |
RU2541818C2 (en) * | 2011-07-11 | 2015-02-20 | Грейт Эспирейшенз Лтд. | Device for gripping and removing objects from body cavity |
RU2664959C2 (en) * | 2016-11-30 | 2018-08-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный медицинский университет" Министерства здравоохранения Российской Федерации (ФГБОУ ВО СибГМУ Минздрава России) | Method and device for endoscopic lithotripsy of concrements in bile ducts |
Also Published As
Publication number | Publication date |
---|---|
RU2763646C1 (en) | 2021-12-30 |
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