WO2014021897A1 - Produits de consommation discrets et emballages pour stérilisation réglés pour revenir au niveau précédent, et procédés de fabrication de produits de consommation discrets - Google Patents

Produits de consommation discrets et emballages pour stérilisation réglés pour revenir au niveau précédent, et procédés de fabrication de produits de consommation discrets Download PDF

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Publication number
WO2014021897A1
WO2014021897A1 PCT/US2012/049310 US2012049310W WO2014021897A1 WO 2014021897 A1 WO2014021897 A1 WO 2014021897A1 US 2012049310 W US2012049310 W US 2012049310W WO 2014021897 A1 WO2014021897 A1 WO 2014021897A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring element
product
area
spring
material layer
Prior art date
Application number
PCT/US2012/049310
Other languages
English (en)
Inventor
Perry Handziak
Jon Pelland
Henry L. Griesbach, Iii
Keith J. Edgett
Original Assignee
Curt G. Joa, Inc.
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 Curt G. Joa, Inc. filed Critical Curt G. Joa, Inc.
Priority to PCT/US2012/049310 priority Critical patent/WO2014021897A1/fr
Publication of WO2014021897A1 publication Critical patent/WO2014021897A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/04—Heat
    • A61L2/06—Hot gas
    • A61L2/07—Steam
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/18—Aseptic storing means
    • A61L2202/181—Flexible packaging means, e.g. permeable membranes, paper

Definitions

  • This disclosure relates to methods of manufacturing snap-back biased discrete consumer products, and snap- back biased discrete consumer products produced by such methods .
  • Sterilization wraps are used to shield materials contained in the wraps, such as surgical tools, from contamination.
  • the wraps are placed around the object (s) to be sterilized prior to sterilization. After sterilization, the contents may be used immediately or may be stored for use when desired.
  • a product that is made of several sheets of nonwoven plastic materials of various weights is used for wrapping trays of surgical instruments prior to sterilization.
  • the wrapped tray of instruments may be placed in an autoclave unit and heated with steam to sterilize the package.
  • the temperature in the autoclave is at or above the annealing temperature of the nonwoven plastic materials; therefore, the materials tend to form to the shape of the tray. That is, after the package is allowed to cool and is removed from the autoclave, the nonwoven materials have a tendency to remain in the shape that they were in when they were heated. This "memory" phenomenon hinders the package from properly opening and unfolding in its final stage of use.
  • Snap-back biased discrete consumer products such as, but not limited to sterilization wraps used in surgical settings are described. Such sterilization wraps may be autoclavable . Other embodiments in which a snap-back biased discrete consumer product is desirable are also disclosed.
  • the snap-back biased discrete consumer products are sterilization wraps used in surgical settings. Other embodiments in which a snap-back biased discrete consumer product is desirable are also disclosed.
  • one or more spring elements can be added to the product. These spring elements can be positioned between or outside the nonwoven material sheets in specific locations such that when the product is in its final stage of use, the spring elements help overcome the resistance or "memory" of the folds in the nonwoven materials and bias the materials to unfold.
  • the disclosed embodiments are useful to avoid contacting exterior, non-sterile surfaces of sterilization wraps with the sterile contents of the sterilization wrap.
  • Spring elements are coupled with the sterilization wrap to urge the sterilization wrap from a closed to an open position when desired, and which significantly reduces the laid-open bias to allow the sterilization wrap to remain in a concealing position. By being urged to remain in an open position, the sterilization wrap avoids being re-introduced to the sterile equipment contained in the sterilization wrap.
  • Figure 1 is a top plan view of a sterilization wrap of the present disclosure, with spring elements positioned coupled to the sterilization wrap;
  • Figure 2A is a side cross-sectional view of the sterilization wrap
  • Figure 2B is a side cross-sectional view of a portion of the sterilization wrap
  • Figure 2C is a side cross-sectional view of another portion of the sterilization wrap
  • Figure 3 is a perspective, in use view of the sterilization wrap in an open condition
  • Figures 4-7 are perspective, in use views of the sterilization wrap during closing
  • FIGS 8, 9A, 9B and 10-11 are perspective, in use views of the sterilization wrap during opening
  • Figure 12 is a top plan view of an alternate embodiment of a sterilization wrap of the present disclosure, with an alternate spring element arrangement
  • Figure 13 is a top plan view of a second alternate embodiment of a sterilization wrap of the present disclosure, with a second alternate spring element arrangement .
  • Figure 14 is a drawing of sterilization wrap having spring elements outside of the object landing area.
  • Figure 15 is a drawing of sterilization wrap having spring elements outside of the object landing area as well as stiff regions dissociated from the object landing area and spring elements.
  • Figure 16 illustrates a configuration of spring elements and stiff regions in conventional rectangular sterilization wrap.
  • Figure 17 illustrates a configuration of stiff regions (without spring elements) in conventional sterilization wrap.
  • FIG. 1 a top plan view of a sterilization wrap 10 of the present disclosure is shown, showing with dashed lines where an object intended for concealment within the sterilization wrap 10 is outlined, the sterile object 12 generally defining an object landing area 11, with the remainder of the sterilization wrap generally defining an object covering area 13.
  • Spring elements 14 are positioned coupled to material layer or layers 16 of the sterilization wrap 10.
  • the spring elements 14 are desirably, but not necessarily of a flatter variety so that they are easily concealed either within or on one layer of material 16.
  • the area where the spring elements 14 are attached may partially coincide with the object landing area 11, at least partially underlying the object 12.
  • the spring area may not coincide with the object landing area 11 ( Figure 14) but would be wholly outside the object landing area and so would not underlay the obj ect 12.
  • layers of material 16 can be provided in a configuration such that the layers of material 16 avoid building up a memory, which could cause the material 16 to act in an undesirable fashion (e.g. curling back to contact the object) . Additionally, the layers of material 16 could be arranged to provide additional resistance to impact or penetration by providing additional layers 16 in areas expected to encounter more stress (e.g. corners, edges) .
  • FIG. 2B a close-up side cross- sectional view of a portion of the sterilization wrap 10 is shown.
  • the spring element 14 is provided concealed within material layers 16.
  • Spring elements 14 can be any material type, mounted between any of the material layers 16, or external to the material layers 16. Spring elements 14 can also be different lengths and configurations, either coincident with a material layer edge (not shown) or not coincident with a material layer edge (as shown in Figure 2B) . Also evident on Figure 2B is that a plurality of material layers 16 can be provided as desired, to increase
  • the spring element 14 comprises a somewhat flexible strip of metal or other flexible material, arranged in a cupped fashion.
  • the spring elements can be made of strips of steel, aluminum or plastic material of similar size and shape of the steel used in self retracting tape measures. That is, the material can be formed in a curved shape across its width. These strips can be any length to meet the requirements for various product sizes and opening demands .
  • the spring element 14 may be a strip with a curved or cup-shaped cross-section in at least a portion of the strip where the direction of the cupshape is down, e.g. away from the object landing area (although a strip with the cup-shape up, or a different spring element arrangement could also be used) .
  • the strip as the spring element 14 will bias or urge the material layers 16 to lay open (such as shown in Figure 3) .
  • the spring element 14 or a portion thereof goes essentially limp, which significantly reduces the laid-open bias. This allows the sterilization wrap to remain in a concealing position (see Figure 7 ) .
  • the "break open” position is when the entirety of the spring element 14 is unstressed.
  • the break open position is when the spring element 14 maintains all its cup-shapes.
  • the "over the top” position is when a portion of the spring element 14 overlays any part of the object landing area and any portion of the spring element 14 is stressed.
  • the over the top position is when at least one cup-shape configuration present in the strip at the break open position changes, e.g. becomes uncupped partially, completely, or inverted, while the strip at least partially overlays the object landing area.
  • a perspective view of the sterilization wrap 10 in a laid open condition is shown in Figure 3. In this condition, an object 12 can be placed in the object landing area 11 in the wrap 10 for concealment, or removed from the wrap 10 when ready for use in the sterile environment.
  • Figures 4-7 are perspective views that show the sterilization wrap 10 during closing from the open condition to the concealing position.
  • a first edge of the sterilization wrap 10 is folded over the object 12 in the object landing area 11, with other edges of the wrap 10 folded over the object 12 sequentially, until the concealing position as shown in Figure 7 is achieved.
  • the object 12 can be stored until ready for use.
  • Figures 8, 9A, 9B, 10 and 11 are perspective and side views of the sterilization wrap 10 during its opening from the concealing position to the laid-open position.
  • the unfolding of edges of the sterilization wrap 10 is accomplished in reverse order of the closing shown in Figures 4 - 7.
  • the spring element or elements 14 revert back to the break open position, or past the break open position in a direction opposite the over the top position, the spring element 14 biases the sterilization wrap to the open position as shown in Figure 11.
  • the wrap 10 in the open position, the wrap 10 will, as a whole, usually lay flat in the open position as shown in Figure
  • FIG. 12 and 13 top plan views of alternate embodiments of a sterilization wrap 10 of the present disclosure are shown.
  • alternate spring element 14 arrangements are provided, which allow for additional shapes of and directional biases.
  • spring elements 14 may also be used outside of the intended object landing area 11 to actively overcome the resistance to unfolding of the sterilization wrap, as mentioned above.
  • the spring elements 14, such as a thin strip of material that is flexible in the length dimension yet relatively inflexible in the width dimension, e.g. a thin metal or plastic strip that is slightly curved in the width direction, are positioned near, yet outside of, the object landing area 11 and attached to the sterilization wrap 10 so that a portion of the spring element 14 is bent over the object 12 when the wrap is folded around the object 12.
  • the portion of the spring element 14 nearest the object landing area 11 does not initially interfere or retard folding of the wrap upwards but generally does in subsequent folding of the wrap.
  • Regions of sterilization wrap 10 that are relatively stiffer than other regions can be configured to further aid in unfolding. These stiff regions 18 can be of the same basis weight as neighboring regions or they can differ. The stiff regions 18 can serve to anchor the end portion of the spring element nearest the object landing area 11. The stiff regions 18 can also counteract the set that is imparted to the sterilization wrap 10 due to folding and sterilizing, thus promoting the wrap to return to a flat position after unfolding.
  • the stiff regions 18 may include continuous or discontinuous heat-fused or at least partially bonded areas of the sterilization wrap itself (e.g. geometric area shapes, lines) , continuous or discontinuous heat set areas of sterilization wrap itself (e.g. thermal treatment to impart a biased curving opposition the direction of intended folding) , added components attached to the sterilization wrap (e.g. flat layers, flexible elements with inherent arcing opposite the direction of intended folding), and/or their combinations.
  • Figures 14 and 15 also illustrate configurations of spring elements 14 and stiff regions 18 in a wrap assembly suitable for rectangular shaped objects 12 with minimum fold overlaps.
  • the stiff regionsl8 may function best with spring elements 14 for this type of wrap 10 when the stiff regions 18 do not extend beyond the sides of the object 12 to be wrapped while a portion of the spring element (s) does.
  • Figure 16 illustrates the use of spring elements 14 with a conventional sterilization wrap.
  • the spring elements 14 may or may not underlay the object landing area 11.
  • optional stiff regions 18 may also be used to help counteract the set that is imparted to the sterilization wrap 10 due to folding and sterilizing.
  • stiff regions 18 When stiff regions 18 are dissociated from spring elements 14, they can be involved in folds to counteract permanent creasing or at least diminish the set increases when they occur. This is shown in Figure 17. Stiff regions 18 are shown with greater shading indicating a greater degree of stiffness.
  • a first material layer 16 is provided at a first speed.
  • Spring elements 14 are severed and introduced to the material layer 16.
  • Spring elements 14 are then coupled to the material layer 16.
  • the coupling can be accomplished by provided an additional, overlying material layer 16 atop the spring elements 14, by providing or creating a seam in the material layer 16 into which a spring element 14 is provided, or by mechanically or adhesively coupling the spring element 14 to the material layer 14.
  • additional material layers 16 can be provided where desired.
  • Spring elements 14 can be introduced to a running web of material 16 by transverse introduction, or machine direction introduction of a rotated spring element 14. Angled introduction is also possible.
  • the material for the spring elements can be supplied in roll form and unwound and fed into the machine process using a conventional unwind system that can control the feed rate to provide a specified length of the material and to ensure that it is properly tensioned.
  • adhesive is applied to one side and it is conveyed to a cut off unit where it is cut to the desired length.
  • the spring element is picked up and held in place on a transfer drum. (The drum can use vacuum or other mechanical methods to hold the spring element material to the drum. )
  • the spring element will be oriented such that the adhesive will be on the side of the spring element material that is facing away from the transfer drum .
  • the unwind equipment and transfer drum is placed in the machine line such that the spring element will be conveyed into the machine perpendicular to the direction of travel of the primary web to which the spring element will be attached.
  • the spring elements will enter one side of the transfer drum, (the top, for example) and as the transfer drum rotates, the spring elements will be transported to the bottom, for example, position of the drum.
  • the first spring element is at the bottom of the transfer drum, the spring element will be positioned such that its adhesive coated side is in close proximity to the surface of the running primary web.
  • a dauber device rotates into a position that will cause the primary web to be deflected toward the spring element.
  • the primary web will be deflected to an elevation at which it contacts the adhesive coated surface of the spring element with enough force that the adhesive securely bonds the spring element to the primary web.
  • the primary web will pull the spring element away from the transfer drum and the spring element will continue to travel with the primary web. This sequence will be repeated for each subsequent spring element .
  • the process equipment used to apply the spring elements can be adjusted in the cross machine direction and multiple transfer drums can be positioned over the primary web.
  • the spring element material may be supplied in discrete pieces as opposed to roll form. This would require the roll unwinding system to be replaced with a feeding system.
  • the spring element material may be flat as opposed to curved.
  • the spring element material may be supplied flat and need to be formed into a curved shape on the machine. This would require that roll forming equipment be installed between the unwind system and the cut off knife. If the material is plastic, it may be necessary to use heated and chilled forming rolls.
  • the spring element material if it is curved, it may be applied with its concave side facing toward the primary web or it may be applied with its concave side facing away from the primary web.
  • a cut off knife is used in conjunction with a die cutting unit to create radii (or other profiles) on the corners of the spring elements as they are cut to length.
  • the spring element may be applied in the same direction as the running web by placing the transfer drum in line with the running web or by feeding the transfer drum at 90 degrees to the running web direction and rotating the cut spring element on the transfer drum to align it with the running web .
  • the adhesive may be applied to the entire surface of the spring element or it may be applied only in discrete areas on the spring element.
  • the adhesive may be applied to the concave or the convex surface of a curved spring element.
  • the orientation of the transfer drum may vary.
  • the transfer drum would be placed below the primary web and the dauber would be placed above the web.
  • the spring elements would be picked up by the drum at the bottom position and transported to the top position where they would be transferred to the primary web.
  • the surface of the transfer drum to which the spring element is held may be profiled to match the curvature of the spring element.
  • the transfer drum is circular, the ends of the spring element will be further away from the primary web than the midpoint of the spring elements. This difference may cause the spring element to skew as it is being daubed onto the primary web. To compensate for this, the transfer drum diameter will be maximized.
  • the transfer drum may be made in the shape of a polygon with sides that are similar in length to the spring element. This would result in the entire length of the spring element being at the same distance from the primary web when the dauber contacts the primary web.
  • the spring element may be attached to a carrier web before it is picked up by the transfer drum.
  • the carrier web would then be attached to the primary web.
  • the carrier web could facilitate transporting of the spring element and it could enable the same transfer drum diameter to be used to apply spring elements of different lengths without changes to the set up of the transfer drum.
  • a carrier web could reinforce to the primary web so that the potential for the spring element to puncture the primary web is reduced.
  • the carrier web may be single layer or it may be multiple layers with the spring element sandwiched between the layers.
  • the spring element may be attached to the carrier web with adhesives, ultrasonic bonding, or a similar bonding technology; or the spring element may be captured in a pocket in a multilayer carrier web without the spring element being bonded to the carrier web.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Packages (AREA)

Abstract

La présente invention concerne des produits de consommation discrets, tels que des emballages de stérilisation, et des procédés de production desdits produits de consommation discrets. Les emballages de stérilisation de la présente invention permettent d'éviter le contact entre les surfaces externes non stériles des emballages de stérilisation et le contenu stérile desdits emballages. Des éléments de ressort sont accouplés à l'emballage de stérilisation pour permettre à l'emballage de stérilisation de passer d'une position fermée à une position ouverte en cas de besoin. Ainsi, on évite la réintroduction de l'emballage de stérilisation dans l'équipement stérile contenu dans l'emballage de stérilisation.
PCT/US2012/049310 2012-08-02 2012-08-02 Produits de consommation discrets et emballages pour stérilisation réglés pour revenir au niveau précédent, et procédés de fabrication de produits de consommation discrets WO2014021897A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2012/049310 WO2014021897A1 (fr) 2012-08-02 2012-08-02 Produits de consommation discrets et emballages pour stérilisation réglés pour revenir au niveau précédent, et procédés de fabrication de produits de consommation discrets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2012/049310 WO2014021897A1 (fr) 2012-08-02 2012-08-02 Produits de consommation discrets et emballages pour stérilisation réglés pour revenir au niveau précédent, et procédés de fabrication de produits de consommation discrets

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WO2014021897A1 true WO2014021897A1 (fr) 2014-02-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9089453B2 (en) 2009-12-30 2015-07-28 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US9283683B2 (en) 2013-07-24 2016-03-15 Curt G. Joa, Inc. Ventilated vacuum commutation structures
US9289329B1 (en) 2013-12-05 2016-03-22 Curt G. Joa, Inc. Method for producing pant type diapers
US10167156B2 (en) 2015-07-24 2019-01-01 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
US10751220B2 (en) 2012-02-20 2020-08-25 Curt G. Joa, Inc. Method of forming bonds between discrete components of disposable articles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5435971A (en) * 1990-06-06 1995-07-25 Propper Manufacturing Co., Inc. Sterilization biological test pack
US7452436B2 (en) * 2005-03-09 2008-11-18 Curt G. Joa, Inc. Transverse tape application method and apparatus
US7922983B2 (en) * 2005-07-28 2011-04-12 Kimberly-Clark Worldwide, Inc. Sterilization wrap with additional strength sheet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5435971A (en) * 1990-06-06 1995-07-25 Propper Manufacturing Co., Inc. Sterilization biological test pack
US7452436B2 (en) * 2005-03-09 2008-11-18 Curt G. Joa, Inc. Transverse tape application method and apparatus
US7922983B2 (en) * 2005-07-28 2011-04-12 Kimberly-Clark Worldwide, Inc. Sterilization wrap with additional strength sheet

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9089453B2 (en) 2009-12-30 2015-07-28 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US10751220B2 (en) 2012-02-20 2020-08-25 Curt G. Joa, Inc. Method of forming bonds between discrete components of disposable articles
US9283683B2 (en) 2013-07-24 2016-03-15 Curt G. Joa, Inc. Ventilated vacuum commutation structures
US9289329B1 (en) 2013-12-05 2016-03-22 Curt G. Joa, Inc. Method for producing pant type diapers
US10167156B2 (en) 2015-07-24 2019-01-01 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
US10494216B2 (en) 2015-07-24 2019-12-03 Curt G. Joa, Inc. Vacuum communication apparatus and methods
US10633207B2 (en) 2015-07-24 2020-04-28 Curt G. Joa, Inc. Vacuum commutation apparatus and methods

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