WO2006037895A1 - Polyamide bag for extraction an isolation - Google Patents

Polyamide bag for extraction an isolation Download PDF

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Publication number
WO2006037895A1
WO2006037895A1 PCT/FR2005/002448 FR2005002448W WO2006037895A1 WO 2006037895 A1 WO2006037895 A1 WO 2006037895A1 FR 2005002448 W FR2005002448 W FR 2005002448W WO 2006037895 A1 WO2006037895 A1 WO 2006037895A1
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WIPO (PCT)
Prior art keywords
bag
opening
polyamide fabric
equal
polyamide
Prior art date
Application number
PCT/FR2005/002448
Other languages
French (fr)
Inventor
Alfredo Meneghin
Philippe Chastan
Original Assignee
Sofradim Production
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
Application filed by Sofradim Production filed Critical Sofradim Production
Priority to EP05807721A priority Critical patent/EP1796550A1/en
Publication of WO2006037895A1 publication Critical patent/WO2006037895A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00287—Bags for minimally invasive surgery

Definitions

  • the present invention relates to an extraction and isolation bag of operative parts, particularly tear-resistant and impermeable.
  • the surgical operations are done laparoscopically, using trocars, in order to minimize the trauma caused by the incision of the walls, for example of the abdominal wall.
  • Such operations are, for example, cholecystectomy, appendectomy, colectomy, adrenalectomy, cystectomy, nephrectomy, hysterectomy, myomectomy, lymphadenectomy.
  • the present invention aims to remedy these problems by proposing an extraction and isolation bag based on a particularly tear-resistant, impermeable fabric, and easy opening and closing.
  • the present invention relates to a bag for extracting and isolating operative parts, comprising a bag comprising an opening and a cord adapted to close this opening, characterized in that the bag is made of a polyamide fabric having a resistance longitudinal tear strength of greater than or equal to 11 N, and a transverse tensile tear strength greater than or equal to 22 N, the longitudinal tensile strength initiated and the transverse tensile strength initiated being measured according to ISO 4674- 2.
  • the bag according to the invention has excellent tear resistance. Thus, the risks of contaminating the area operated by the sick parts stored in the bag are minimized and the passage of the wall is secured.
  • the extraction bag according to the invention is particularly useful in laparoscopic operations such as cholecystectomy, appendectomy, colectomy, adrenalectomy, cystectomy, nephrectomy, hysterectomy, myomectomy, lymphadenectomy. .
  • the term "fabric” means any assembly of yarn, obtained in particular by knitting and / or weaving.
  • the fabric is a yarn assembly obtained by weaving.
  • the polyamide fabric is coated with polyurethane.
  • the bag according to the invention has excellent sealing and excellent impermeability. This is particularly important in order to avoid contaminating the operated areas, in particular by fluids intended to be removed, such as bile for example.
  • the polyamide-coated polyamide fabric has a resistance to water penetration, or impermeability, greater than or equal to a pressure of 500 mm of water, measured according to the ISO standard. 811.
  • the bag according to the invention is particularly light, which facilitates its handling during the surgical procedure.
  • the polyamide fabric has a basis weight of less than or equal to 48 g / m 2 , this surface mass being measured according to the NFG 07 150 test method. It also has a rigidity preventing it from collapsing, thus also facilitating its use during the procedure.
  • the polyamide fabric is biocompatible and meets the requirements of ISO 10993 for the intended use.
  • a polyamide fabric particularly suitable for the present invention is the fabric sold under the trade name "RIPSTOP®” by the company NCV Industries.
  • the pouch consists of a rectangle of polyamide fabric which has been folded on itself along the median line joining its long sides and whose side edges have been closed by an ultrasonic weld.
  • the pouch makes it possible to obtain a particularly impervious bag.
  • the bag has a forced opening resistance of at least 90 Newtons, measured on dynamometer ECME012 at a constant speed of 100 mm / min, as described below.
  • the bag comprises, near the perimeter of its opening, slots through which the cord is inserted.
  • the bead has a diameter of 1 mm and the slots are obtained by passing a round section needle 1, 5 mm in diameter.
  • FIG. 1 is a side view of the bag according to the invention before use
  • FIG. 2 is a perspective view of the bag according to the invention once closed after use
  • FIG. 3 is a view illustrating the forced opening resistance test.
  • FIG. 1 shows a bag 1 for extracting and isolating operating parts, comprising a bag 2 comprising an opening 3 and a cord 4 capable of closing this opening 3.
  • the bag 2 consists of a polyamide fabric having a longitudinal tensile tear strength of greater than or equal to 11 N, and a transverse tearing tensile strength of greater than or equal to 22 N, the longitudinal tensile strength initiated and the transverse tensile strength initiated being measured according to ISO 4674-2.
  • the polyamide fabric is coated with polyurethane. The fabric thus coated has a resistance to penetration of water, or impermeability, greater than or equal to a pressure of 500 mm of water, measured according to ISO 811.
  • the polyamide fabric has a basis weight of less than or equal to 48 g / m 2 , this surface mass being measured according to the NFG 07 150 test method.
  • the bag 2 consists of a rectangle of polyamide fabric which has been folded on itself along the median line 5 joining its long sides and whose side edges have been closed. 6 by an ultrasonic weld 7.
  • the bag has a forced opening resistance of at least 90 Newtons, measured according to the following test protocol, with reference to FIG. 3: once the bag 1 has been made as indicated above, it is positioned on both jaws 10 and 11 of a dynamometer ECME012. The jaw 10 is fixed while the jaw 11 moves at a constant speed of 100 mm / min in the direction of the arrow V as shown in Figure 3.
  • the force required to achieve the breaking of the weld 7 is measured.
  • This force, or resistance to the forced opening of the weld of the bag according to the invention, is greater than or equal to 90 Newtons.
  • slits 8 for example regularly spaced, obtained by passing a round section needle, through which the cord has been inserted, have been formed in the fabric.
  • the cord 4 is for example polyester and is provided at both ends with nodes 9.
  • the adequacy of the size of the cord and that of the slots conditions the friction ensuring the effective closure of the bag while allowing easy reopening .
  • the bead 4 has a diameter of 1 mm in diameter and the slots 8 are obtained by passing a round section needle of 1.5 mm in diameter.
  • the bag according to the invention can for example measure 12 cm in length and 8 cm in width. It can pass through a trocar of for example 10 mm in diameter.
  • the bag according to the invention may have any desired size depending on the operating part or pieces to be removed.
  • the bag according to the invention is in the configuration shown in FIG. 1. It is then, for example, wound on itself. even to be introduced into the body of the patient to operate with a trocar of diameter for example 10 mm.
  • the bag 1 is deployed and opened with the aid of appropriate surgical instruments, such as forceps, also introduced by one or more trocars.
  • appropriate surgical instruments such as forceps
  • the natural rigidity of the bag 1 allows it to remain open and the surgeon can easily handle it to deposit the operative parts, such as appendix, vesicle or other, to remove. Thanks to the excellent tear resistance primed bag 1, it retains its integrity despite the manipulations it is required to undergo during the surgical procedure.
  • the surgeon pulls, for example with a clamp, on the node 9 of the free end of the cord 4 while maintaining the opposite side of the bag 1, in order to close the bag 1.
  • the closure of the bag is facilitated by the sliding of the polyester cord 4 in the slots 9 of the polyamide bag 2.
  • the friction obtained between the cord 4 and the slots 9 thanks to the particular shape of the slots 9 and the appropriate diameter of the cord 4 generates a non-return effect securing the closure of the bag 1 by preventing it from opening again.
  • the surgeon must pull strongly on the cord 4 to achieve a seal as tight as possible.
  • the bag 1 does not tear.
  • the full and closed bag is shown in Figure 2.
  • the bag can stay up to 24 hours in the human body.
  • the bag 1 is removed from the body of the patient, for example by one of the incisions provided for the passage of the trocar. Thanks to its resistance to tearing initiated, the bag 1 maintains its integrity despite the constraints it undergoes passage of this wall. Once removed, the bag 1 can then be thrown with its contents.
  • the extraction bag according to the invention is particularly reliable and easy to handle for the surgeon. It allows the extraction of operative parts from the body of a patient with optimum safety, and for a low cost.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Bag Frames (AREA)

Abstract

The invention concerns a bag (1) for extracting surgical specimens, comprising a pouch (2) including an opening (3) and a draw string (4) for closing said opening. The bag is characterized in that the pouch (2) is made of a polyamide fabric having a longitudinal tear propagation resistance not less than 11 N, and a transverse tear propagation resistance not less than 22 N, the longitudinal tear propagation resistance and the transverse tear propagation resistance being measured according to the ISO 4674-2 standard.

Description

Sac d'extraction et d'isolement en polyamide Polyamide extraction and isolation bag
La présente invention porte sur un sac d'extraction et d'isolement de pièces opératoires, particulièrement résistant à la déchirure et imperméable.The present invention relates to an extraction and isolation bag of operative parts, particularly tear-resistant and impermeable.
Lors d'une opération chirurgicale, il est parfois nécessaire d'évacuer de la région opérée des pièces anatomiques malades ou devenues inutiles, encore appelées pièces opératoires.During a surgical operation, it is sometimes necessary to evacuate from the operated area anatomical parts that are sick or have become useless, also called operative parts.
Par ailleurs, de plus en plus, lorsque cela est possible, les opérations chirurgicales se font par voie laparoscopique, à l'aide de trocarts, afin de minimiser le traumatisme causé par l'incision des parois, par exemple de la paroi abdominale. De telles opérations sont par exemple la cholécystectomie, l'appendicectomie, la colectomie, l'adrénalectomie, la cystectomie, la néphrectomie, l'hystérectomie, la myomectomie, la lymphadénectomie.On the other hand, more and more, when possible, the surgical operations are done laparoscopically, using trocars, in order to minimize the trauma caused by the incision of the walls, for example of the abdominal wall. Such operations are, for example, cholecystectomy, appendectomy, colectomy, adrenalectomy, cystectomy, nephrectomy, hysterectomy, myomectomy, lymphadenectomy.
Dans de tels cas, l'ouverture dans le corps se faisant par un ou plusieurs passages très étroits, il peut s'avérer difficile d'évacuer les parties à enlever. Pour cela, il existe des sacs d'extraction de ces pièces opératoires, dans lesquels on stocke ou isole les parties à enlever pendant le temps de l'intervention, puis qu'on évacue en fin d'opération par la brèche pariétale laissée par le trocart une fois retiré.In such cases, the opening in the body being made by one or more very narrow passages, it can be difficult to evacuate the parts to be removed. For this, there are bags of extraction of these operative parts, in which one stores or isolates the parts to be removed during the time of the intervention, and then evacuated at the end of operation by the parietal gap left by the trocar once removed.
Durant ces opérations, et en particulier lors de l'opération du retrait du sac, il est essentiel que ce dernier ne se déchire pas. Il est également important qu'il soit parfaitement imperméable pour éviter de contaminer les zones saines. En effet, les contraintes subies par le sac sont élevées au moment du passage de la paroi, la pièce opératoire extraite étant fréquemment plus volumineuse que le trou laissé par le trocart.During these operations, and in particular during the operation of removal of the bag, it is essential that the latter does not tear. It is also important that it is perfectly waterproof to avoid contaminating healthy areas. Indeed, the stresses experienced by the bag are high at the time of passage of the wall, the extracted workpiece is frequently larger than the hole left by the trocar.
Le problème avec les sacs existants est qu'ils sont généralement constitués de films en matière plastique dont la résistance à la déchirure est faible. Une fois déchiré, le sac n'est plus étanche et la récupération des pièces opératoires doit être de nouveau effectuée avec les risques de contamination que cela comporte. Enfin, ces sacs présentent souvent une faible rigidité qui rend leur manipulation malaisée.The problem with existing bags is that they generally consist of plastic films with low tear strength. Once torn, the bag is no longer sealed and the recovery of the operating room must be performed again with the risk of contamination that entails. Finally, these bags often have a low rigidity that makes handling difficult.
La présente invention vise à remédier à ces problèmes en proposant un sac d'extraction et d'isolement à base d'un tissu particulièrement résistant à la déchirure, imperméable, et d'ouverture et fermeture aisées. La présente invention porte sur un sac d'extraction et d'isolement de pièces opératoires, comprenant une poche comprenant une ouverture et un cordon apte à fermer cette ouverture, caractérisé en ce que la poche est constituée d'un tissu en polyamide présentant une résistance longitudinale à la déchirure amorcée supérieure ou égale à 11 N, et une résistance transversale à la déchirure amorcée supérieure ou égale à 22 N, la résistance longitudinale à la déchirure amorcée et la résistance transversale à la déchirure amorcée étant mesurées selon la norme ISO 4674-2.The present invention aims to remedy these problems by proposing an extraction and isolation bag based on a particularly tear-resistant, impermeable fabric, and easy opening and closing. The present invention relates to a bag for extracting and isolating operative parts, comprising a bag comprising an opening and a cord adapted to close this opening, characterized in that the bag is made of a polyamide fabric having a resistance longitudinal tear strength of greater than or equal to 11 N, and a transverse tensile tear strength greater than or equal to 22 N, the longitudinal tensile strength initiated and the transverse tensile strength initiated being measured according to ISO 4674- 2.
Le sac selon l'invention présente une excellente résistance à la déchirure. Ainsi, les risques de contaminer la zone opérée par les parties malades stockées dans le sac sont minimisés et le passage de la paroi est sécurisé.The bag according to the invention has excellent tear resistance. Thus, the risks of contaminating the area operated by the sick parts stored in the bag are minimized and the passage of the wall is secured.
Le sac d'extraction selon l'invention est particulièrement utile dans les opérations réalisées par voie laparoscopique telles que la cholécystectomie, l'appendicectomie, la colectomie, l'adrénalectomie, la cystectomie, la néphrectomie, l'hystérectomie, la myomectomie, la lymphadénectomie.The extraction bag according to the invention is particularly useful in laparoscopic operations such as cholecystectomy, appendectomy, colectomy, adrenalectomy, cystectomy, nephrectomy, hysterectomy, myomectomy, lymphadenectomy. .
Au sens de la présente demande, on entend, par « tissu », tout assemblage de fils, obtenu notamment par tricotage et/ou tissage. Dans un mode de réalisation de l'invention, le tissu est un assemblage de fils obtenu par tissage.For the purposes of the present application, the term "fabric" means any assembly of yarn, obtained in particular by knitting and / or weaving. In one embodiment of the invention, the fabric is a yarn assembly obtained by weaving.
Dans une forme préférée de réalisation de l'invention, le tissu en polyamide est enduit de polyuréthane. Ainsi, le sac selon l'invention présente une excellente étanchéité et une excellente imperméabilité. Cela est particulièrement important afin d'éviter de contaminer les zones opérées, en particulier par des fluides destinés à être retirés, comme la bile par exemple.In a preferred embodiment of the invention, the polyamide fabric is coated with polyurethane. Thus, the bag according to the invention has excellent sealing and excellent impermeability. This is particularly important in order to avoid contaminating the operated areas, in particular by fluids intended to be removed, such as bile for example.
Dans une forme préférée de réalisation de l'invention, le tissu en polyamide enduit de polyuréthane présente une résistance à la pénétration de l'eau, ou imperméabilité, supérieure ou égale à une pression de 500 mm d'eau, mesurée selon la norme ISO 811.In a preferred embodiment of the invention, the polyamide-coated polyamide fabric has a resistance to water penetration, or impermeability, greater than or equal to a pressure of 500 mm of water, measured according to the ISO standard. 811.
De plus, le sac selon l'invention est particulièrement léger, ce qui facilite sa manipulation au cours de l'intervention chirurgicale.In addition, the bag according to the invention is particularly light, which facilitates its handling during the surgical procedure.
Ainsi, dans une forme préférée de réalisation de l'invention, le tissu en polyamide présente une masse surfacique inférieure ou égale à 48 g/m2, cette masse surfacique étant mesurée selon la méthode d'essai NFG 07 150. II présente également une rigidité l'empêchant de s'effondrer, facilitant également ainsi son utilisation durant l'intervention. De préférence, le tissu en polyamide est biocompatible et répond aux exigences de la norme ISO 10993 pour l'utilisation envisagée.Thus, in a preferred embodiment of the invention, the polyamide fabric has a basis weight of less than or equal to 48 g / m 2 , this surface mass being measured according to the NFG 07 150 test method. It also has a rigidity preventing it from collapsing, thus also facilitating its use during the procedure. Preferably, the polyamide fabric is biocompatible and meets the requirements of ISO 10993 for the intended use.
Un tissu en polyamide convenant particulièrement bien à la présente invention est de la toile vendue sous la dénomination commerciale « RIPSTOP® » par la société NCV industries.A polyamide fabric particularly suitable for the present invention is the fabric sold under the trade name "RIPSTOP®" by the company NCV Industries.
Dans une forme préférée de réalisation de l'invention, la poche est constituée d'un rectangle de tissu en polyamide que l'on a replié sur lui-même selon la ligne médiane joignant ses grands côtés et dont on a fermé les bords latéraux par une soudure à ultra-sons. Une telle réalisation permet d'obtenir une poche particulièrement étanche.In a preferred embodiment of the invention, the pouch consists of a rectangle of polyamide fabric which has been folded on itself along the median line joining its long sides and whose side edges have been closed by an ultrasonic weld. Such an embodiment makes it possible to obtain a particularly impervious bag.
Ainsi, dans une forme préférée de réalisation de l'invention, le sac présente une résistance à l'ouverture forcée d'au moins 90 Newtons, mesurée sur dynamomètre ECME012 à vitesse constante de 100 mm/min, comme décrit plus loin.Thus, in a preferred embodiment of the invention, the bag has a forced opening resistance of at least 90 Newtons, measured on dynamometer ECME012 at a constant speed of 100 mm / min, as described below.
Dans une forme préférée de réalisation de l'invention, le sac comporte, proche du périmètre de son ouverture, des fentes au travers desquelles le cordon est inséré. De préférence, le cordon présente un diamètre de 1 mm et les fentes sont obtenues par passage d'une aiguille de section ronde de 1 ,5 mm de diamètre.In a preferred embodiment of the invention, the bag comprises, near the perimeter of its opening, slots through which the cord is inserted. Preferably, the bead has a diameter of 1 mm and the slots are obtained by passing a round section needle 1, 5 mm in diameter.
La présente invention va maintenant être décrite en détails à l'aide du dessin annexé, donné à titre d'exemple et dans lequel :The present invention will now be described in detail with the aid of the accompanying drawing, given by way of example and in which:
- la figure 1 est une vue de côté du sac selon l'invention avant utilisation,FIG. 1 is a side view of the bag according to the invention before use,
- la figure 2 est une vue en perspective du sac selon l'invention une fois fermé après utilisation,FIG. 2 is a perspective view of the bag according to the invention once closed after use,
- la figure 3 est une vue illustrant le test de résistance à l'ouverture forcée.FIG. 3 is a view illustrating the forced opening resistance test.
Sur la figure 1 , est représenté un sac 1 d'extraction et d'isolement de pièces opératoires comprenant une poche 2 comprenant une ouverture 3 et un cordon 4 apte à fermer cette ouverture 3. La poche 2 est constituée d'un tissu en polyamide présentant une résistance longitudinale à la déchirure amorcée supérieure ou égale à 11 N, et une résistance transversale à la déchirure amorcée supérieure ou égale à 22 N, la résistance longitudinale à la déchirure amorcée et la résistance transversale à la déchirure amorcée étant mesurées selon la norme ISO 4674-2. Le tissu en polyamide est enduit de polyuréthane. Le tissu ainsi enduit présente une résistance à la pénétration de l'eau, ou imperméabilité, supérieure ou égale à une pression de 500 mm d'eau, mesurée selon la norme ISO 811.FIG. 1 shows a bag 1 for extracting and isolating operating parts, comprising a bag 2 comprising an opening 3 and a cord 4 capable of closing this opening 3. The bag 2 consists of a polyamide fabric having a longitudinal tensile tear strength of greater than or equal to 11 N, and a transverse tearing tensile strength of greater than or equal to 22 N, the longitudinal tensile strength initiated and the transverse tensile strength initiated being measured according to ISO 4674-2. The polyamide fabric is coated with polyurethane. The fabric thus coated has a resistance to penetration of water, or impermeability, greater than or equal to a pressure of 500 mm of water, measured according to ISO 811.
Le tissu en polyamide présente une masse surfacique inférieure ou égale à 48 g/m2, cette masse surfacique étant mesurée selon la méthode d'essai NFG 07 150.The polyamide fabric has a basis weight of less than or equal to 48 g / m 2 , this surface mass being measured according to the NFG 07 150 test method.
Comme il apparaît sur les figures 1 et 2, la poche 2 est constituée d'un rectangle de tissu en polyamide que l'on a replié sur lui-même selon la ligne médiane 5 joignant ses grands côtés et dont on a fermé les bords latéraux 6 par une soudure 7 à ultra-sons.As it appears in FIGS. 1 and 2, the bag 2 consists of a rectangle of polyamide fabric which has been folded on itself along the median line 5 joining its long sides and whose side edges have been closed. 6 by an ultrasonic weld 7.
Le sac présente une résistance à l'ouverture forcée d'au moins 90 Newtons, mesurée selon le protocole de test suivant, en référence à la figure 3 : une fois le sac 1 réalisé comme indiqué ci-dessus, il est positionné sur les deux mors 10 et 11 d'un dynamomètre ECME012. Le mors 10 est fixe tandis que le mors 11 se déplace à une vitesse constante de 100 mm/min dans le sens de la flèche V comme indiqué sur la figure 3.The bag has a forced opening resistance of at least 90 Newtons, measured according to the following test protocol, with reference to FIG. 3: once the bag 1 has been made as indicated above, it is positioned on both jaws 10 and 11 of a dynamometer ECME012. The jaw 10 is fixed while the jaw 11 moves at a constant speed of 100 mm / min in the direction of the arrow V as shown in Figure 3.
La force nécessaire pour parvenir à la rupture de la soudure 7 est mesurée. Cette force, ou résistance à l'ouverture forcée de la soudure du sac selon l'invention, est supérieure ou égale à 90 Newtons.The force required to achieve the breaking of the weld 7 is measured. This force, or resistance to the forced opening of the weld of the bag according to the invention, is greater than or equal to 90 Newtons.
En référence à la figure 1, proche du périmètre de l'ouverture 3, on a ménagé dans le tissu des fentes 8, par exemple régulièrement espacées, obtenues par passage d'une aiguille de section ronde, au travers desquelles on a inséré le cordon 4. Le cordon 4 est par exemple en polyester et il est muni à ses deux extrémités de nœuds 9. L'adéquation de la taille du cordon et de celle des fentes conditionne le frottement assurant la fermeture efficace du sac tout en autorisant une réouverture aisée. Ainsi, de préférence, le cordon 4 présente un diamètre de 1 mm de diamètre et les fentes 8 sont obtenues par passage d'une aiguille de section ronde de 1,5 mm de diamètre. Ces valeurs permettent d'obtenir un frottement à effet anti-retour efficace lors de la fermeture du sac 1.With reference to FIG. 1, close to the perimeter of the opening 3, slits 8, for example regularly spaced, obtained by passing a round section needle, through which the cord has been inserted, have been formed in the fabric. 4. The cord 4 is for example polyester and is provided at both ends with nodes 9. The adequacy of the size of the cord and that of the slots conditions the friction ensuring the effective closure of the bag while allowing easy reopening . Thus, preferably, the bead 4 has a diameter of 1 mm in diameter and the slots 8 are obtained by passing a round section needle of 1.5 mm in diameter. These values make it possible to obtain effective anti-return friction when the bag 1 is closed.
Le sac selon l'invention peut par exemple mesurer 12 cm de longueur pour 8 cm de largeur. Il peut passer par un trocart de par exemple 10 mm de diamètre. Le sac selon l'invention peut avoir toute taille voulue en fonction de la ou des pièces opératoires à retirer.The bag according to the invention can for example measure 12 cm in length and 8 cm in width. It can pass through a trocar of for example 10 mm in diameter. The bag according to the invention may have any desired size depending on the operating part or pieces to be removed.
Ainsi, avant utilisation, le sac selon l'invention est dans la configuration montrée à la figure 1. Il est ensuite par exemple enroulé sur lui- même pour être introduit dans le corps du patient à opérer à l'aide d'un trocart de diamètre par exemple 10 mm. Une fois dans le champ opératoire, le sac 1 est déployé et ouvert à l'aide d'instruments chirurgicaux adéquats, tels que des pinces, introduits également par un ou plusieurs trocarts. Durant l'opération, la rigidité naturelle du sac 1 lui permet de rester ouvert et le chirurgien peut aisément le manipuler pour y déposer les pièces opératoires, tels que appendice, vésicule ou autres, à enlever. Grâce à l'excellente résistance à la déchirure amorcée du sac 1 , ce dernier garde son intégrité malgré les manipulations qu'il est amené à subir pendant l'intervention chirurgicale.Thus, before use, the bag according to the invention is in the configuration shown in FIG. 1. It is then, for example, wound on itself. even to be introduced into the body of the patient to operate with a trocar of diameter for example 10 mm. Once in the operative field, the bag 1 is deployed and opened with the aid of appropriate surgical instruments, such as forceps, also introduced by one or more trocars. During the operation, the natural rigidity of the bag 1 allows it to remain open and the surgeon can easily handle it to deposit the operative parts, such as appendix, vesicle or other, to remove. Thanks to the excellent tear resistance primed bag 1, it retains its integrity despite the manipulations it is required to undergo during the surgical procedure.
Une fois l'opération terminée, le chirurgien tire, par exemple avec une pince, sur le nœud 9 de l'extrémité libre du cordon 4 tout en maintenant le côté opposé du sac 1 , afin de fermer le sac 1. La fermeture du sac est facilitée par le glissement du cordon 4 en polyester dans les fentes 9 de la poche 2 en polyamide. Le frottement obtenu entre le cordon 4 et les fentes 9 grâce à la forme particulière des fentes 9 et au diamètre adéquat du cordon 4 génère un effet anti-retour sécurisant la fermeture du sac 1 en l'empêchant de s'ouvrir à nouveau. Lors de cette opération, le chirurgien doit tirer fortement sur le cordon 4 afin de réaliser une fermeture la plus étanche possible. Toutefois, grâce à ses excellentes propriétés mécaniques, le sac 1 ne se déchire pas. Le sac plein et refermé est représenté à la figure 2. Grâce à sa biocompatibilité, le sac peut séjourner jusqu'à 24 heures dans le corps humain. A la fin de l'intervention chirurgicale, le sac 1 est retiré du corps du patient, par exemple par une des incisions ménagées pour le passage du trocart. Grâce à sa résistance à la déchirure amorcée, le sac 1 conserve son intégrité malgré les contraintes qu'il subit au passage de cette paroi. Une fois retiré, le sac 1 peut être alors jeté avec son contenu.Once the operation is over, the surgeon pulls, for example with a clamp, on the node 9 of the free end of the cord 4 while maintaining the opposite side of the bag 1, in order to close the bag 1. The closure of the bag is facilitated by the sliding of the polyester cord 4 in the slots 9 of the polyamide bag 2. The friction obtained between the cord 4 and the slots 9 thanks to the particular shape of the slots 9 and the appropriate diameter of the cord 4 generates a non-return effect securing the closure of the bag 1 by preventing it from opening again. During this operation, the surgeon must pull strongly on the cord 4 to achieve a seal as tight as possible. However, thanks to its excellent mechanical properties, the bag 1 does not tear. The full and closed bag is shown in Figure 2. Thanks to its biocompatibility, the bag can stay up to 24 hours in the human body. At the end of the surgical procedure, the bag 1 is removed from the body of the patient, for example by one of the incisions provided for the passage of the trocar. Thanks to its resistance to tearing initiated, the bag 1 maintains its integrity despite the constraints it undergoes passage of this wall. Once removed, the bag 1 can then be thrown with its contents.
Du fait de sa légèreté et de ses propriétés mécaniques, le sac d'extraction selon l'invention est particulièrement fiable et facile à manipuler pour le chirurgien. Il permet l'extraction des pièces opératoires du corps d'un patient avec une sécurité optimale, et ce pour un faible prix de revient. Because of its lightness and its mechanical properties, the extraction bag according to the invention is particularly reliable and easy to handle for the surgeon. It allows the extraction of operative parts from the body of a patient with optimum safety, and for a low cost.

Claims

REVENDICATIONS
1. Sac (1) d'extraction et d'isolement de pièces opératoires, comprenant une poche (2) comprenant une ouverture (3) et un cordon (4) apte à fermer cette ouverture (3), caractérisé en ce que la poche (2) est constituée d'un tissu en polyamide présentant une résistance longitudinale à la déchirure amorcée supérieure ou égale à 11 N, et une résistance transversale à la déchirure amorcée supérieure ou égale à 22 N, la résistance longitudinale à la déchirure amorcée et la résistance transversale à la déchirure amorcée étant mesurées selon la norme ISO 4674-2.1. bag (1) for extracting and isolating operative parts, comprising a pocket (2) comprising an opening (3) and a cord (4) capable of closing this opening (3), characterized in that the pocket (2) is made of a polyamide fabric having a longitudinal tensile tear strength greater than or equal to 11 N, and a transverse tensile tear resistance greater than or equal to 22 N, the longitudinal tensile tear strength and the transverse tensile strength initiated being measured according to ISO 4674-2.
2. Sac (1 ) selon la revendication 1 , caractérisé en ce que le tissu en polyamide est enduit de polyuréthane.2. Bag (1) according to claim 1, characterized in that the polyamide fabric is coated with polyurethane.
3. Sac (1 ) selon la revendication 2, caractérisé en ce que le tissu en polyamide enduit de polyuréthane présente une résistance à la pénétration de l'eau supérieure ou égale à une pression de 500 mm d'eau, mesurée selon la norme ISO 811.3. Bag (1) according to claim 2, characterized in that the polyamide-coated polyamide fabric has a resistance to penetration of water greater than or equal to a pressure of 500 mm of water, measured according to the ISO standard. 811.
4. Sac (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le tissu en polyamide présente une masse surfacique inférieure ou égale à 48 g/m2, cette masse surfacique étant mesurée selon la méthode d'essai NFG 07 150.4. Bag (1) according to any one of claims 1 to 3, characterized in that the polyamide fabric has a basis weight less than or equal to 48 g / m 2 , this mass per unit area being measured according to the test method NFG 07 150.
5. Sac (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la poche (2) est constituée d'un rectangle de tissu en polyamide que l'on a replié sur lui-même selon la ligne médiane (5) joignant ses grands côtés et dont on a fermé les bords latéraux par une soudure (7) à ultra-sons.5. Bag (1) according to any one of the preceding claims, characterized in that the pocket (2) consists of a rectangle of polyamide fabric that has been folded on itself along the center line (5). ) joining its long sides and whose side edges were closed by a welding (7) ultrasonic.
6. Sac (1 ) selon la revendication 5, caractérisé en ce qu'il présente une résistance à l'ouverture forcée d'au moins 90 Newtons, mesurée sur dynamomètre ECME012 à vitesse constante de 100 mm/min.6. Bag (1) according to claim 5, characterized in that it has a forced opening resistance of at least 90 Newtons, measured dynamometer ECME012 at a constant speed of 100 mm / min.
7. Sac (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte, proche du périmètre de son ouverture (3), des fentes (8) au travers desquelles le cordon (4) est inséré.7. Bag (1) according to any one of the preceding claims, characterized in that it comprises, close to the perimeter of its opening (3), slots (8) through which the cord (4) is inserted.
8. Sac (1) selon la revendication précédente, caractérisé en ce que le cordon (4) présente un diamètre de 1 mm et les fentes (8) sont obtenues par passage d'une aiguille de section ronde de 1 ,5 mm de diamètre. 8. Bag (1) according to the preceding claim, characterized in that the bead (4) has a diameter of 1 mm and the slots (8) are obtained by passing a round section needle of 1, 5 mm diameter .
PCT/FR2005/002448 2004-10-06 2005-10-05 Polyamide bag for extraction an isolation WO2006037895A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05807721A EP1796550A1 (en) 2004-10-06 2005-10-05 Polyamide bag for extraction and isolation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0410534A FR2876023B1 (en) 2004-10-06 2004-10-06 POLYAMIDE EXTRACTION AND ISOLATION BAG
FR0410534 2004-10-06

Publications (1)

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WO2006037895A1 true WO2006037895A1 (en) 2006-04-13

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FR (1) FR2876023B1 (en)
WO (1) WO2006037895A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0608419D0 (en) * 2006-04-28 2006-06-07 Newcastle Upon Tyne Hospitals Laparoscopic kidney cooling sheath

Citations (7)

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Publication number Priority date Publication date Assignee Title
EP0465051A2 (en) * 1990-06-22 1992-01-08 VANCE PRODUCTS INCORPORATED d/b/a COOK UROLOGICAL INCORPORATED Surgical containment apparatus
EP0507588A1 (en) * 1991-04-03 1992-10-07 Ethicon, Inc. Endoscopic medical device
US5215521A (en) * 1991-11-26 1993-06-01 Cochran James C Laparoscopy organ retrieval apparatus and procedure
US5224930A (en) * 1991-01-09 1993-07-06 Endomedix Corporation Trocar system for facilitating passage of instruments into a body cavity through a minimal access incision
US5341815A (en) * 1993-03-25 1994-08-30 Ethicon, Inc. Endoscopic surgical pouch
US5524633A (en) * 1991-11-25 1996-06-11 Advanced Surgical, Inc. Self-deploying isolation bag
US6527748B1 (en) * 1998-08-17 2003-03-04 Yutaka Suzuki Method of gastrostomy, and an infection preventive cover, kit or catheter kit, and a gastrostomy catheter kit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465051A2 (en) * 1990-06-22 1992-01-08 VANCE PRODUCTS INCORPORATED d/b/a COOK UROLOGICAL INCORPORATED Surgical containment apparatus
US5224930A (en) * 1991-01-09 1993-07-06 Endomedix Corporation Trocar system for facilitating passage of instruments into a body cavity through a minimal access incision
EP0507588A1 (en) * 1991-04-03 1992-10-07 Ethicon, Inc. Endoscopic medical device
US5524633A (en) * 1991-11-25 1996-06-11 Advanced Surgical, Inc. Self-deploying isolation bag
US5215521A (en) * 1991-11-26 1993-06-01 Cochran James C Laparoscopy organ retrieval apparatus and procedure
US5341815A (en) * 1993-03-25 1994-08-30 Ethicon, Inc. Endoscopic surgical pouch
US6527748B1 (en) * 1998-08-17 2003-03-04 Yutaka Suzuki Method of gastrostomy, and an infection preventive cover, kit or catheter kit, and a gastrostomy catheter kit

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EP1796550A1 (en) 2007-06-20
FR2876023A1 (en) 2006-04-07
FR2876023B1 (en) 2007-03-16

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