WO2010045702A1 - Improved trocar sealing - Google Patents
Improved trocar sealing Download PDFInfo
- Publication number
- WO2010045702A1 WO2010045702A1 PCT/BR2009/000355 BR2009000355W WO2010045702A1 WO 2010045702 A1 WO2010045702 A1 WO 2010045702A1 BR 2009000355 W BR2009000355 W BR 2009000355W WO 2010045702 A1 WO2010045702 A1 WO 2010045702A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circular opening
- base
- area
- cylindrical body
- trocar
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M39/0606—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof without means for adjusting the seal opening or pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M2039/0626—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof used with other surgical instruments, e.g. endoscope, trocar
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
- A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
- A61M2039/0646—Duckbill-valve
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/02—Access sites
- A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
Definitions
- the present invention is in respect of an improvement of a trocar seal. More specifically it consists of a disposable seal for the trocar produced in biocompatible silicone which has a set up which minimizes the gas flow in the escape direction and allows the introduction and removal of instruments in a smooth way. INVENTION BACKGROUND
- Video laparoscopy surgery is carried out with the help of instruments and suitable apparatus to get abdominal cavity visualization without the necessity of large incisions and as a result less surgical trauma. Therefore this type of intervention needs the abdominal cavity to be transformed from potential to real with gas insufflation.
- the trocars are the instruments which allow these procedures to be carried out, being equipped with seals to avoid gas escape.
- the sealing mechanism is positioned inside the trocar housing chamber, sealing against the external surface of the inserted instruments, impeding or minimizing the exit of fluids and insufflation gases of the body cavity through the trocar cannula.
- the prior art concept describes double sealing assemblies with a proximal seal to seal around the instrument and a duckbill seal provided below the proximal seal to seal the trocar housing when the instrument is not there.
- Other trocars use a single seal mechanism, generally a silicone device with an opening diameter orifice less than the diameter of the instrument to be used with the trocar.
- the present invention is related to an improvement in the sealing of a trocar which consists of a cylindrical body which includes a circular opening in one of its ends; a base at the opposite end of this circular opening, the base has on the surface an arrangement of cuts; a surrounding enlarged diameter area arranged on the cylindrical body surface contiguous to the circular opening; an area with a diameter equal to the measured diameter of the circular opening and it has concave radial contours on the internal and external surfaces, this area is between the enlarged diameter area and the base end, and semi-circular depressions on the base, these depressions are aligned with the concave radial contours and inserted between extensions aligned with the circular opening perimeter on the opposite end of the cylindrical body.
- An invention characteristic is the improvement in trocar sealing which enables the fast and easy connecting of the trocar due to the minimum component number.
- An invention characteristic is the improvement in trocar sealing which provides the sealing during the whole procedure minimizing escaping gas flow.
- An invention characteristic is the improvement in trocar sealing with a biocompatible silicone material which eliminates the deformation caused by instruments passing, maintaining the material resilience and allowing the introduction of instruments with diverse diameters.
- An invention characteristic is the improvement in trocar sealing which allows the instrument to slide through the sealing device with the minimum attrition possible, eliminating ruptures.
- BRIEF DESCRIPTION OF THE DRAWINGS Figure 1A shows details of the sealing element positioning in the trocar chamber.
- FIG. 2 shows details of the sealing element.
- Figure 3 shows a perspective view of the sealing element, figure 3A is the front face and figure 3B is the rear face.
- the trocar sealing improvement consists of a silicone sealing element to be positioned in the internal part of the trocar, with the objective of restricting gas escape during the surgical procedure through an innovative geometry which minimizes the escaping gas flow.
- the sealing element consists of a cylindrical body which includes a circular opening (10) in one of its ends and the opposite end of this circular opening (10) having a base (11).
- the base (11) has an arrangement of cuts on the surface (111) which allows instruments to pass through the cuts (111) which due to the material resilience guarantee the seal when there is no instrument placed in the trocar, as shown in figure 3B.
- the cylindrical body surface is contiguous with the circular opening (10) it has a surrounding enlarged diameter area (12).
- the concave radial contours (13) create semi-circular depressions (112) on the base surface (11 ) aligned with the concave radial contours (13), these depressions are inserted between extensions (113) aligned with the circular opening perimeter (10) on the opposite end of the cylindrical body.
- the silicone cylindrical body has flexibility and the concave radial contours (13) maintain the structure, maintaining the original shape.
- the sealing element (100) is positioned and fixed in the trocar chamber (200) by inserting the ring structure around the mouth with the trocar base, having a dimensional interference between the sealing element and the trocar base which provides the adjustment and the perfect fit having in mind the sealing element body to be produced in silicone which allows malleability.
Abstract
Improved trocar sealing comprising a cylindrical body that includes a circular opening (10) at one end; a base (11 ) at the opposite end to said circular opening (10), base (11 ) showing on the surface the provision of cuts (111 ), equipped with a surrounding area of enlargement in diameter (12) disposed on the surface of the cylindrical body adjacent to the circular opening (10), an area with a diameter as the diameter of the circular opening (10) and endowed ray- shaped hollow (13) in internal and external surface, said area disposed between the area of enlargement in diameter (12) and endowed with the basic end (11 ), and semi-circular indentations (112) arranged on the base (11), said indentations (112) aligned with the concave-ray (13) and interspersed with extensions (113) aligned with the perimeter of the circular opening (10) disposed at the opposite end of the cylindrical body.
Description
IMPROVED TROCAR SEALING
The present invention is in respect of an improvement of a trocar seal. More specifically it consists of a disposable seal for the trocar produced in biocompatible silicone which has a set up which minimizes the gas flow in the escape direction and allows the introduction and removal of instruments in a smooth way. INVENTION BACKGROUND
Video laparoscopy surgery is carried out with the help of instruments and suitable apparatus to get abdominal cavity visualization without the necessity of large incisions and as a result less surgical trauma. Therefore this type of intervention needs the abdominal cavity to be transformed from potential to real with gas insufflation.
In the case of intra-abdominal procedures, the use of the instrument is indispensible. In this way it is necessary that the forceps get access to the peritoneal cavity, without gas escaping from the operative field.
The trocars are the instruments which allow these procedures to be carried out, being equipped with seals to avoid gas escape. The sealing mechanism is positioned inside the trocar housing chamber, sealing against the external surface of the inserted instruments, impeding or minimizing the exit of fluids and insufflation gases of the body cavity through the trocar cannula.
The prior art concept describes double sealing assemblies with a proximal seal to seal around the instrument and a duckbill seal provided below the proximal seal to seal the trocar housing when the instrument is not there.
Other trocars use a single seal mechanism, generally a silicone device with an opening diameter orifice less than the diameter of the instrument to be used with the trocar.
However, these trocar seals have the inconvenience of being difficult to assemble in the trocar because of the countless constituent components of the sealing device. Also the devices have a fragile resistant sealing point which can be broken due to instrument attrition.
Therefore, there is a need to provide a trocar sealing device which maintains the pneumoperitoneum during the whole procedure, including introducing and removing instruments providing a minimum attrition with the instruments, such an improvement in a trocar sealing device is described and claimed in this present application. SUMMARY
Generally, the present invention is related to an improvement in the sealing of a trocar which consists of a cylindrical body which includes a circular opening in one of its ends; a base at the opposite end of this circular opening, the base has on the surface an arrangement of cuts; a surrounding enlarged diameter area arranged on the cylindrical body surface contiguous to the circular opening; an area with a diameter equal to the measured diameter of the circular opening and it has concave radial contours on the internal and external surfaces, this area is between the enlarged diameter area and the base end, and semi-circular depressions on the base, these depressions are aligned with the concave radial contours and inserted between extensions aligned with the circular opening perimeter on the opposite end of the cylindrical body.
An invention characteristic is the improvement in trocar sealing which enables the fast and easy connecting of the trocar due to the minimum component number.
An invention characteristic is the improvement in trocar sealing which provides the sealing during the whole procedure minimizing escaping gas flow.
An invention characteristic is the improvement in trocar sealing with a biocompatible silicone material which eliminates the deformation caused by instruments passing, maintaining the material resilience and allowing the introduction of instruments with diverse diameters.
An invention characteristic is the improvement in trocar sealing which allows the instrument to slide through the sealing device with the minimum attrition possible, eliminating ruptures. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1A shows details of the sealing element positioning in the trocar chamber.
Figure 2 shows details of the sealing element.
Figure 3 shows a perspective view of the sealing element, figure 3A is the front face and figure 3B is the rear face. DETAILED DESCRIPTION OF THE INVENTION
The trocar sealing improvement, the objective of this invention, consists of a silicone sealing element to be positioned in the internal part of the trocar, with the objective of restricting gas escape during the surgical procedure through an innovative geometry which minimizes the escaping gas flow.
The sealing element consists of a cylindrical body which includes a circular opening (10) in one of its ends and the opposite end of this circular opening (10) having a base (11).
The base (11) has an arrangement of cuts on the surface (111) which allows instruments to pass through the cuts (111) which due to the material resilience guarantee the seal when there is no instrument placed in the trocar, as shown in figure 3B. The cylindrical body surface is contiguous with the circular opening (10) it has a surrounding enlarged diameter area (12).
Between the enlarged diameter area (12) and the base end (11) is arranged an area with a diameter equal to the circular opening diameter measurement (10), in this area are concave radial contours (13) on the internal and external surface, these concave radial contours (13) are intercalated and at equal distance.
The concave radial contours (13) create semi-circular depressions (112) on the base surface (11 ) aligned with the concave radial contours (13), these depressions are inserted between extensions (113) aligned with the circular opening perimeter (10) on the opposite end of the cylindrical body.
The silicone cylindrical body has flexibility and the concave radial contours (13) maintain the structure, maintaining the original shape.
As shown in figure 1 , the sealing element (100) is positioned and fixed in the trocar chamber (200) by inserting the ring structure around the mouth with the trocar base, having a dimensional interference between the sealing element and the trocar base which provides the adjustment and the perfect fit having in mind the sealing element body to be produced in silicone which allows malleability.
Claims
1. TROCAR SEALING IMPROVEMENT, characterized by consisting of a cylindrical body which includes: a) a circular opening (10) in one of its ends; b) a base (11 ) at the opposite end of this circular opening (10), the base (11 ) having cuts on the surface (111); c) a surrounding enlarged diameter area (12) on the cylindrical body surface contiguous with the circular opening (10); d) an area with a diameter equal to the circular opening diameter measurement (10) and having concave radial contours (13) on the internal and external surface, this area is between the enlarged diameter area (12) and the base end (11); e) semi-circular depressions (112) on the base (11), these depressions (112) are aligned with the concave radial contours (13) and intercalated with extensions (113) aligned with the circular opening perimeter (10) at the opposite end of the cylindrical body.
2. TROCAR SEALING IMPROVEMENT, in accordance with the claim 1, characterized by the fact that the concave radial contours (13) are intercalated and of equal distances.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0805749A BRPI0805749B8 (en) | 2008-10-20 | 2008-10-20 | improvement in trocar sealing |
BRPI0805749-4 | 2008-10-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010045702A1 true WO2010045702A1 (en) | 2010-04-29 |
Family
ID=42118865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2009/000355 WO2010045702A1 (en) | 2008-10-20 | 2009-10-20 | Improved trocar sealing |
Country Status (2)
Country | Link |
---|---|
BR (1) | BRPI0805749B8 (en) |
WO (1) | WO2010045702A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011088337A1 (en) | 2011-12-13 | 2013-06-13 | Karl Storz Gmbh & Co. Kg | Sealing device for sealing a passage for a medical instrument |
DE102011088336A1 (en) | 2011-12-13 | 2013-06-13 | Karl Storz Gmbh & Co. Kg | Sealing device for sealing passage of trocar that is introduced into peritoneal cavity of patient, has bar at circumferential wall section arranged partly toward of one edge to another edge of elastic circumferential wall section |
DE202013100459U1 (en) | 2013-02-01 | 2014-05-05 | Karl Storz Gmbh & Co.Kg | Sealing device for sealing a passage for a medical instrument |
EP2762094A1 (en) | 2013-02-01 | 2014-08-06 | Karl Storz GmbH & Co. KG | Sealing device for sealing a feedthrough for a medical instrument |
US10028731B2 (en) | 2013-11-12 | 2018-07-24 | Genzyme Corporation | Barrier application device |
US20180214178A1 (en) * | 2015-07-29 | 2018-08-02 | Ab Medica Holding S.P.A. | Trocar structure for abdominal surgery |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0630660A1 (en) * | 1993-06-16 | 1994-12-28 | United States Surgical Corporation | Seal assembly for accomodating introduction of surgical instruments |
US5401248A (en) * | 1994-02-22 | 1995-03-28 | Ethicon Endo-Surgery | Seal for trocar assembly |
US5662615A (en) * | 1995-09-01 | 1997-09-02 | Blake, Iii; Joseph W. | Valve and valve cartridge for trocar |
US20080051739A1 (en) * | 2006-08-25 | 2008-02-28 | Mcfarlane Richard H | Caged floating seal assembly |
-
2008
- 2008-10-20 BR BRPI0805749A patent/BRPI0805749B8/en not_active IP Right Cessation
-
2009
- 2009-10-20 WO PCT/BR2009/000355 patent/WO2010045702A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0630660A1 (en) * | 1993-06-16 | 1994-12-28 | United States Surgical Corporation | Seal assembly for accomodating introduction of surgical instruments |
US5401248A (en) * | 1994-02-22 | 1995-03-28 | Ethicon Endo-Surgery | Seal for trocar assembly |
US5662615A (en) * | 1995-09-01 | 1997-09-02 | Blake, Iii; Joseph W. | Valve and valve cartridge for trocar |
US20080051739A1 (en) * | 2006-08-25 | 2008-02-28 | Mcfarlane Richard H | Caged floating seal assembly |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011088337A1 (en) | 2011-12-13 | 2013-06-13 | Karl Storz Gmbh & Co. Kg | Sealing device for sealing a passage for a medical instrument |
DE102011088336A1 (en) | 2011-12-13 | 2013-06-13 | Karl Storz Gmbh & Co. Kg | Sealing device for sealing passage of trocar that is introduced into peritoneal cavity of patient, has bar at circumferential wall section arranged partly toward of one edge to another edge of elastic circumferential wall section |
EP2604203A1 (en) | 2011-12-13 | 2013-06-19 | Karl Storz GmbH & Co. KG | Sealing device for sealing a feedthrough for a medical instrument |
US9398923B2 (en) | 2011-12-13 | 2016-07-26 | Karl Storz Gmbh & Co. Kg | Sealing means for the sealing of an introduction facility for a medical instrument |
DE202013100459U1 (en) | 2013-02-01 | 2014-05-05 | Karl Storz Gmbh & Co.Kg | Sealing device for sealing a passage for a medical instrument |
EP2762094A1 (en) | 2013-02-01 | 2014-08-06 | Karl Storz GmbH & Co. KG | Sealing device for sealing a feedthrough for a medical instrument |
DE102013101019A1 (en) | 2013-02-01 | 2014-08-07 | Karl Storz Gmbh & Co. Kg | Sealing device for sealing a passage for a medical instrument |
US9622776B2 (en) | 2013-02-01 | 2017-04-18 | Karl Storz Gmbh & Co. Kg | Sealing device for sealing a passage for a medical instrument |
US10028731B2 (en) | 2013-11-12 | 2018-07-24 | Genzyme Corporation | Barrier application device |
US20180214178A1 (en) * | 2015-07-29 | 2018-08-02 | Ab Medica Holding S.P.A. | Trocar structure for abdominal surgery |
US10646253B2 (en) * | 2015-07-29 | 2020-05-12 | Ab Medica S.P.A. | Trocar structure for abdominal surgery |
Also Published As
Publication number | Publication date |
---|---|
BRPI0805749A2 (en) | 2010-08-24 |
BRPI0805749B8 (en) | 2021-06-22 |
BRPI0805749B1 (en) | 2020-11-10 |
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