Packaging System With Folded Sidewalls
20200107901 ยท 2020-04-09
Inventors
Cpc classification
B65D5/4233
PERFORMING OPERATIONS; TRANSPORTING
B65D5/5007
PERFORMING OPERATIONS; TRANSPORTING
B65D5/4204
PERFORMING OPERATIONS; TRANSPORTING
B65D5/5004
PERFORMING OPERATIONS; TRANSPORTING
A61B50/30
HUMAN NECESSITIES
A61B50/20
HUMAN NECESSITIES
International classification
A61B50/30
HUMAN NECESSITIES
B65D5/50
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A packaging system utilizing a thin, planar sheet of material that is folded to have a base and at least three sidewalls. At least one mounting feature is integrated into at least one sidewall to secure at least one medical device component, wherein the at least one medical device component is mountable onto the at least one sidewall.
Claims
1. A packaging system comprising a thin, planar sheet of material that is folded to have a base and at least three sidewalls, at least one mounting feature being defined on at least one sidewall to secure at least one medical device component, wherein the at least one medical device component is mountable onto the at least one sidewall.
2. The system of claim 1 wherein the at least one mounting feature is integral with the at least one sidewall and includes at least one fold in the sidewall.
3. The system of claim 1 wherein additional features in the planar sheet temporarily hold at least one pair of adjacent sidewalls together.
4. The system of claim 1 wherein additional features temporarily hold at least every other adjacent sidewall together when viewed around the base in a clockwise or counterclockwise direction.
5. The system of claim 1 wherein additional features temporarily hold every adjacent sidewall together.
6. The system of claim 1 further including a jig to hold the planar sheet of material.
7. The system of claim 6 wherein the jig includes at least one protuberance to at least partially activate at least one of the mounting features.
8. The system of claim 1 wherein the packaging system is suitable for at least one of NPWT (Negative Pressure Wound Therapy), wound cleaning, and chronic wound treatment.
9. The system of claim 1 wherein at least one feature is disengaged by a user to activate packaging instructions.
10. The system of claim 1 wherein at least one feature is disengaged by a user to achieve a display layout wherein a plurality of medical device components are arranged in a selected order.
11. The system of claim 1 wherein at least one lip is defined around at least a majority of a top border formed when the sidewalls are joined together.
12. The system of claim 11 wherein a plurality of components are mounted on the lip features.
13. The system of claim 11 wherein at least one lip feature is defined on each of at least two sidewalls, and at least two of the lip features are interlocked.
14. The system of claim 1 further including a sheet of material placed around the folded planar sheet to constrain it and provide additional structural support.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0031] In what follows, preferred embodiments of the invention are explained in more detail with reference to the drawings, in which:
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DETAILED DESCRIPTION OF THE PRESENTLY PREFERRED EMBODIMENTS
[0063] This invention may be accomplished by a packaging system, which may also be considered as a packaging and loading mechanism system, utilizing a thin, planar sheet of preferably rigid material that is folded to have a base and at least three sidewalls. At least one mounting feature is integrated into a least one sidewall to secure at least one medical device component, wherein the at least one medical device component is mountable onto the at least one sidewall. Preferably, additional features in the planar sheet such as tabs and/or slots temporarily hold at least one pair of adjacent sidewalls together; more preferably, additional features temporarily hold at least every other adjacent sidewall together when viewed around the base in a clockwise or counterclockwise direction; and more preferably, additional features temporarily hold every adjacent sidewall together.
[0064] Medical device packaging systems according to the present invention preferably provide one or more of the following advantages: [0065] easy to incorporate multiple components of varying shapes and sizes; [0066] easy component loading during assembly; [0067] applicable to use with a jig during component loading; [0068] applicable to use with a jig during packaging assembly; [0069] easy to use and/or manipulate during assembly; [0070] easy assembly process by-hand; [0071] easy to automate assembly process; [0072] protective barrier that prevents the device from getting damaged during shipping, storage, and/or handling; [0073] capable of passing validation for shipping and storage requirements; [0074] sterile barrier that can be sterilized with its contents; [0075] sterile barrier that maintains sterility throughout the desired shelf-life of at least one enclosed medical device component; [0076] capable of passing sterilization validation; [0077] capable of preserving its contents throughout its shelf-life; [0078] protective barrier in expected environmental conditions; [0079] protective barrier in harsh environments; [0080] capable of passing shelf-life validation; [0081] easy to use and/or manipulate during medical procedure, including no-touch deployment without contacting device components; [0082] intuitive instructions for the end user to easily follow; [0083] easily accessible, intuitive instructions that complement the instructions for use (IFU) and other device labeling; [0084] easily accessible, intuitive instructions that reduce the need to reference the IFU and/or other labeling to achieve proper device functionality; [0085] minimized packaging volume; [0086] minimized packaging footprint; [0087] minimized medical device footprint during medical procedure; [0088] organized medical device components during its application and/or use; [0089] ergonomic; [0090] reduced packaging waste that meets any applicable medical waste and/or waste reduction standards, guidelines, and/or requirements; and [0091] low cost.
[0092] DISCLAIMER: NOTHING HEREIN SHALL BE INTERPRETED AS SEEKING TO AVOID ANY APPLICABLE REGULATORY REQUIREMENTS FOR PREPARING AND/OR USING MEDICAL DEVICES AND PACKAGING THEREFOR. IT IS THE RESPONSIBILITY OF EACH USER TO COMPLY WITH APPLICABLE REQUIREMENTS.
[0093] The novel packaging system disclosed in the present patent application is an ideal design for a kitted medical device with multiple components of varying shapes and sizes. As an illustrative example to explain the present packaging invention, packaging is disclosed for a novel mechanical negative pressure wound therapy (NPWT) kit, which incorporates multiple kit components, including those from the mechanical negative pressure wound therapy (NPWT) device kit described by the present inventor in U.S. Pat. No. 9,173,777 B2. The kit includes components listed in
[0094] The novel mounting card package design disclosed in the present application can be easily stackable in its final packaging configuration and has the reduced planar footprint benefits of a multi-level nested tray. However, unlike nested trays and in a preferred embodiment, the present mounting card package does not require the removal of any separate packaging components in order to access any device component. In another embodiment according to the present invention, a nested concept may be utilized. The footprint of packaging according to the present invention typically is decreased relative to conventional packaging, while providing easy usability and enhanced product display characteristics. To yield these benefits, the card has folding lines 131 through 134 of
[0095] It should be noted that folding lines in the mounting card can be scored on one or both sides and/or perforated. As the scores get deeper and/or the perforations longer, the folding line becomes more flexible. These techniques should be considered with the desired function of the folding line over its useful life. Scoring and/or perforating the folding lines 136 through 139 of the sidewalls may be preferable in making them easier to fold and/or manipulate during assembly. In certain constructions, one or more of the folds created according to the present invention can be referred to as a living hinge.
[0096] The folded mounting card configuration has a similar form of a semi-rigid tray. However, unlike trays (including form-fill seal trays), features 141 through 167 of
[0097] As defined for this application, a retention tab 141 through 145 is a feature in the mounting card that can temporarily constrain and/or lock-in at least one feature of its corresponding device component(s) with one or more features in the tab. At least one retention tab is used to provide the desired constraint(s) to each corresponding component feature. As shown in
[0098] Retention tabs 141 through 145 are typically die cut features that fold towards the component to be constrained (in the final packaging position of the component). A preferred tab feature may have the same or slightly smaller dimensions of the part of the component to be constrained, such that the retention tab fully contacts at least one part of the component feature and/or holds the component feature in-place with an interference fit. As an example shown in
[0099] In at least one embodiment, the tab features may be slightly larger than the dimensions of the part of the component to be constrained. This may be the case for reasons that include: if at least of one the dimensions of the component has wide tolerances that need to be accounted for, if the manufacturing process of the mounting card has large tolerances that need to be accounted for, if the component will be damaged by the forces of an interference fit, if other retention features further constrain the component to at least an acceptable level, and/or if the component is robust enough that a loose fit is deemed sufficient.
[0100] In at least one preferred embodiment, the retention tab feature includes a mouth for the insertion and removal of at least one corresponding component. The mouth of a flat retention tab may be oriented at any angle in the plane of the tab. The orientation of the mouth may be a part of the retention feature design in providing the necessary constraints to a component. For example, the mouths of three or more aligned, planar retention tabs can point in alternating directions (such as in alternating directions parallel to the plane of the unfolded mounting card), and then, a solid component can be woven between them for constraint. In at least one preferred embodiment, the insertion axes of all mouths point at least +/45 degrees from the vertical axis (i.e., the axis perpendicular to the plane of the unfolded mounting card), more preferably +/10 degrees, and even more preferably, +/1 degree. This may allow for the components to be easily loaded from the vertical direction, especially in cases where automation is used. In the case of vertical assembly, any paths between the mouths and the final component positioning would ideally be straight paths, preferably within +/10 degrees, more preferably within +/5 degrees, and even more preferably within +/1 degree along the insertion axis of the mouth, which may allow for faster assembly times. In general, the insertion path does not need to be straight and/or aligned with the insertion axis of the mouth, that is, the insertion path can be non-linear, which may enhance the constraint of a retention tab feature. For example, the path may be in the shape of a U or G where the tab feature mouth is at one end of the line and the final position of the component is at the other end. This non-linear and/or multi-directional path may provide better protection against the dislodgement of the device component from a tab feature during shipping, storage, and/or handling, although, in general, shorter, less complex paths may be more preferable for faster assembly times.
[0101] The preferred width of the mouth of a corresponding retention tab feature provides the necessary constraint in order for the retention tab feature to function properly. In at least one preferred embodiment, the mouth of the feature is part of the functional constraint of at least one device component, such that a removal force is necessary to remove the component through the mouth of the retention feature. In at least one embodiment, it is desirable for the width of the mouth to be smaller than the largest dimension of the width of the component feature to pass through the mouth. This is often the case when a circular component cross-section must be constrained by the retention feature, as shown in the example in
[0102] The greater the dimensional difference between the mouth and the largest dimension of the component feature that must pass through the mouth, the higher the required assembly force and/or removal force. Depending on the required assembly force, the mouth of the retention feature may have at least one lead-in feature to assist with assembly and potentially reduce the assembly force. These lead-in features may include rounded corners 168 of
[0103] Scoring and/or perforating the folding lines of the retention tabs may be preferable in making them easier to fold during assembly; however, the depth of the scoring(s) and/or length of the perforation should be considered. Some designs rely on the stiffness of the folding line to maintain a force on at least one component. These forces may be used to increase the overall constraint stiffness. The magnitude of the force is typically the highest in the direction perpendicular to the flat surface of the retention tab. Therefore, if a pair of retention tabs that hold different features of one component fold from the card in opposite directions from one another, more component stability may be achieved, due to a resulting compression or tension force. For instance, a tab pair may apply an additional compressive force on a component that they are constraining, in the case that the pair of tabs fold away from each other, such as tabs 141 and 142 in
[0104] As defined for this application, a retention fold 146 through 163 is a feature in the mounting card that can temporarily constrain at least one area of its corresponding device component(s), by holding the area between itself and a second surface, being either the surface of the mounting card and/or another surface, such as the surface of a device component. Retention folds are typically die cut features that rely on the stiffness of the fold to apply a holding force to at least one device component between the fold and the second surface. The magnitude of the applied force is typically highest, perpendicular to the flat surface of the fold. The necessary holding force depends on the size and weight of the corresponding component(s), along with the forces that need to be withstood during the useful life of the packaging. In order to increase the holding force, the design of the folds can be manipulated, including the design of its folding line (e.g., increasing its length, decreasing perforation sizes, and/or decreasing score line depths), and/or at least one more retention fold may be added to the design, in order to hold the corresponding device component(s) that require a higher retention force. Increasing the length of the folding line will increase the stiffness of the fold and its corresponding holding force; the change in stiffness is linearly proportional to the length. Increasing the scoring depth and/or the lengths of the perforations along the folding lines will make the folds more flexible and their corresponding retention force less in magnitude; for score lines, the change in stiffness is proportional to the thickness cubed. Therefore, if a significant increase in stiffness is necessary to increase the holding force and no score lines or significant perforation lengths were used, different retention designs should be considered beyond a basic retention fold.
[0105] Multiple retention folds may also interlock with each other, in order to physically lock-in at least one part of at least one corresponding device component, which may produce a potential increase in constraint. This includes at least two retention folds that are side-by-side, folding in alternating directions, or at least two nested retention folds, such as folds 146 and 147, 152 and 153, 154 and 155, 156 and 157, 158 and 159, 160 and 161, and 162 and 163 in
[0106] As defined for this application, a retention strap 164, 165 and 166, as shown in the example in
[0107] If adjustable in geometry, the retention strap must be flexible enough and/or properly designed to achieve the final desired geometry. This may be done with material selection and/or the design, including scoring and/or perforation techniques in at least one direction and/or length, variations in the width of the strap, at least one cutout in the strap along its length, and/or at least one folding line across the strap. If adjustable in length, the retention strap may incorporate this length flexibility into its design. In one embodiment, the strap feature is permanently attached to the mounting card at one end, with holes at its opposite end. When in use, the strap can constrain at least part of at least one component by wrapping around it from the permanently fixed end, and subsequently attaching to a feature on the mounting card, including another strap feature, through one of the holes on the opposite end. This embodiment may be adjusted similar to a belt for pants. Therefore, the attachment hole selected will determine the tightness of the strap constraint. Tighter constraint may be necessary for heavier components and/or to withstand higher forces during the useful life of the packaging.
[0108] The belt design may also be adjustable to any length, instead of discrete lengths determined by the prefabricated holes. This may be preferable in the case that one packaging design is used across multiple products or if varying sizes of at least one corresponding secured part of at least one component may be included in the package. Techniques to secure the free end of the strap include: the strap may be pulled through an interference fit on the mounting card, and/or it may be woven through multiple slots or holes in the mounting card. With these techniques, the strap length is secured by friction. If a higher coefficient of friction is desirable on at least one of the contact surfaces, then, various techniques may be used to increase it. Potential techniques include: at least one contact surface may be machined by processes including scoring or grinding, a surface texture can be stamped into at least one contact surface, including along the border of any through holes (this may be incorporated directly into any through hole features on the die), and/or materials with a higher coefficient of friction may be used.
[0109] The belt design can also be implemented for the case of a fixed length strap design, where only one hole exists in the strap. This may make the assembly of the components easier, as the strap may be easier to manipulate during assembly. For both the adjustable and non-adjustable straps, the belt design concept also allows the strap to be woven through features of the medical device component(s), which may provide a preferable constraint option and/or increase the stability of the constraint. For both the adjustable and non-adjustable straps, the attachment point of the free end of at least one retention strap may also be onto at least one feature of at least one medical device component. In this case, this design would entail a custom variation of a retention strap design.
[0110] The retention (i.e., mounting) features listed above provide constraint mechanisms needed to hold and protect medical device components during shipping, storage, and/or handling. One or more mounting features may be required to provide the necessary constraint(s) for each component. In addition, one mounting feature may provide at least one constraint to one or more components.
[0111] In some packaging embodiments, mounting features are on at least two of the sidewalls to mount at least one component that, in the preferred embodiment, rests in the enclosed internal volume 140 of the design in its final packaging configuration, and in some embodiments, these features are on at least three of the sidewalls to mount at least one component.
[0112] The present invention is particularly beneficial for medical device kits with at least one component that has a large planar profile, but is small along the axis perpendicular to the plane, such as the drape 107 and gauze 108 components. For this type of kit, at least one planar component can be placed on the bottom of the base 135 enclosure, with or without retention features in the mounting card to secure its position, as shown for the drape 107 and gauze 108 components in
[0113] The disclosed mounting card design eliminates the need for draft (i.e., taper) angles that are otherwise necessary for the manufacture of vertical pockets and/or vertical walls in thermoformed trays. This draft angle requirement may significantly increase the footprint of the package, particularly in the case that deep pockets and/or high walls are necessary. In the present invention, the components are mounted onto the sidewalls, which can be folded to the equivalent of a 0 (zero) degree draft angle from the vertical direction, as shown in
[0114] The present invention is ideal for medical devices with multiple components, at least one being large in its planar profile, but small in its vertical axis, such as the drape 107 and gauze 108 components, and at least one being large in its axis of minimum length and/or along its vertical axis of its final packaging configuration, such as the bellows pump 111. These components can be mounted on the base of the enclosed volume for the large planar component(s) and on at least one of the sidewalls and/or other packaging features connected to the sidewalls 210 through 213 of
[0115] The sidewalls can be held in place for easy stackability. This can be done in various ways, including by incorporating features (e.g., folding tab features 169 through 172 of
[0116] In some embodiments, at least one folding line 179 through 182 of
[0117] In the case that components are mounted outside the enclosed volume 140, it may be preferable that the retention features and their corresponding device components remain within, or at least close to within, the volume formed by the planes of the sidewalls, top of the final packaging embodiment, and base of the final packaging embodiment, as not to stick out. Therefore, if necessary, components that are thin along at least one axis and can lie flat on the surface(s) they are mounted onto, such that their dimension(s) perpendicular to the mounting surface(s) is small (i.e., thin), are most preferable for mounting outside of the enclosed volume.
[0118] The top planar contact surface is defined as the planar surface that has at least three points of contact when placed on top of the final packaging configuration. In order to increase the stackability of the final packaging configuration, the top planar contact surface is relatively parallel to the base with an inclusive angle of preferably 10 degrees to +10 degrees, and more preferably 5 degrees to +5 degrees. In the most preferred embodiment, this plane is parallel to the base by 1 degrees to +1 degrees.
[0119] In a preferred embodiment, the sidewalls have folding lines 179 through 182 of
[0120] In one embodiment, the final packaging configuration has an even number of sidewalls 136 through 139 and each sidewall has at least one lip feature 183 through 186, as shown in
[0121] In the previous folding tab embodiment, it is preferred that the material selection and feature design will allow the tabs to remain in their corresponding slots until the user removes them. However, this design relies on many factors, including geometric tolerances, particularly of the tabs and slots, friction between the surfaces contacting the tabs, weight of the components mounted on the lips and/or sidewalls, orientation of the packaging, and stiffness of the folding lines of the sidewalls, lips, and tabs. Additional packaging components, such as at least one of an exterior wrap (e.g., a central supply room (CSR) wrap 177 of
[0122] Another design may incorporate interlocking tabs 188 of
[0123] A person skilled in the art would realize that various configurations of holes 189 and interlocking tabs 188 can be used to achieve the necessary constraints. Multiple tabs and holes, which may vary in size and rotation angle, may be incorporated into the design at the location where two lips, sidewalls, features connected to the sidewalls, and/or any combination between them overlap; this may increase the number of constraints, increase the constraint options, increase the robustness of the design, and/or decrease the necessary tolerance between each tab and its corresponding hole. With decreased tolerances, the tabs may be easier to insert and/or remove from each corresponding hole. In addition, the lip, sidewall, and/or feature connected to the sidewall that contains tabs and corresponding holes can also vary, and one lip, sidewall, and/or feature connected to the sidewall can contain at least one hole, at least one tab, or at least one hole and tab. Features other than interlocking tabs and corresponding holes are also possible to interlock the adjacent and/or contacting lips and/or sidewalls together, and may be used in combination with interlocking tabs and corresponding holes; this includes folding tabs and corresponding slots. In addition, multiple interlocking tabs can insert into one hole; this may increase the number of constraints, increase the robustness of the design, and/or decrease the necessary tolerance.
[0124] These tabs can be folded into their corresponding holes in order to interlock the lips together, as shown in
[0125] When the lip with the tab is on top of the lip with the corresponding hole, the tab is folded down through the corresponding hole, and overlap of the tab onto the bottom of the adjacent lip locks the lips together. The stiffness of the folding line of the tab allows the tab to interlock into the corresponding hole, in order to achieve the proper constraints; this is similar to the retention folds in the case that no components, or substantially thin components, are being retained. This orientation avoids any potential unnecessary protrusions of the tabs upward from the top plane of the final packaging orientation. However, it also requires that the tabs enter into the internal volume 140 of the final configuration of the packaging, which may not be ideal if medical device components and/or their mounting card holding mechanisms interfere with the tabs and/or block their access during assembly. When a user wants to use the device, they may have to simply lift the lips with the tabs, causing the tabs to be removed from their corresponding holes in the preferable embodiment, they may have to lift the tabs and push them through the holes, and/or they may have to push the lips with the holes downward to remove the tabs from the holes. The method(s) that can be used depends on factors including the stiffness of the folding lines, orientation of the tabs, and constraint geometries of the holes. Depending on the design, the second and third options may not be easily performed, due to interference (visually and/or physically) of medical device components and/or their mounting card holding mechanisms. After the lips, sidewalls, and/or features connected to the sidewalls are disengaged from each other, at least one of the sidewalls may fall due to gravity into the plane of the working surface (e.g., table, cart, and floor), as shown for sidewalls 136, 137, and 139 in
[0126] In certain circumstances, at least one tab or other feature that constrains at least one sidewall from folding inward (i.e., into the enclosed volume 140) may be desirable. This may be the case if stackability is a concern, and heavy weight may be placed onto the package, and/or the sidewall folding lines 131 through 134 are highly flexible. In order to achieve this constraint, one preferred orientation of the tab 188 is a tab that points opposite (i.e., 180 degrees) the direction of the unfolding of its corresponding sidewall (in the example embodiment in
[0127] In some embodiments, instead of using interlocking and/or holding tabs in multiple directions in order to provide and/or improve the load bearing properties of the packaging design, a tapered wall design may be used as a novel embodiment of the current invention. In this embodiment, the walls are tapered at an angle either outward or inward from the enclosed volume 140. For the outward angled sidewalls, the angle is preferably between 5 to 60 degrees and more preferably between 10 to 45 degrees. In the preferred embodiment, all of the sidewalls are interlocked to the adjacent sidewall, such that the edge of their sidewalls are held together preferably at the top of their length, more preferably at least along the top third of their length in an intermittent or continuous fashion, and more preferably throughout a majority of their length in an intermittent or continuous fashion. The necessary level of constraint depends on factors, including gauge and material of the mounting card material, design of the sidewall folds, and weight of the components on the sidewalls. The orientation direction of the interlocking mechanism can constrain the sidewalls in the circumferential/outward direction, such that the taper angle will not get larger. Then, as the packaging bears a vertical load, the load will try to force the angle to get larger; however, the interlocking mechanisms will bear increased tensile load, while tightening the interlocking mechanisms and forming a more stable structure.
[0128] For the inward angled sidewalls, the angle is preferably between 5 to 60 degrees and more preferably between 10 to 45 degrees. In the preferred embodiment, all of the sidewalls are interlocked to the adjacent sidewall, such that the edge of their sidewalls are held together preferably at the bottom of their length, more preferably at least along the bottom third of their length in an intermittent or continuous fashion, and more preferably throughout a majority of their length in an intermittent or continuous fashion. The necessary level of constraint depends on factors, including gauge and material of the mounting card material, design of the sidewall folds, and weight of the components on the sidewalls. The orientation direction of the interlocking mechanism can constrain the sidewalls, such that the taper angle will not get larger. Then, as the packaging bears a vertical load, ideally the sidewalls will apply more weight to each other, bearing an increased compressive force and more stable structure. These may be more stable designs than walls approaching 90 degrees, as when the walls are loaded, they may buckle; the structure does not inherently increase in stability with increasing load, instead it decreases in stability in most cases.
[0129] One technique to minimize buckling, including designs with no taper, is to include off-plane features attached to the side walls, such as sidewall folds 190-193 that are folded perpendicular to the sidewalls, giving their corresponding sidewall increased structural stability.
[0130] A person skilled in the art would realize that the same features described above can be used in packaging configurations with an odd number of sidewalls. However, in this case, there will not be an even number of opposing lip, sidewall, and/or feature connected to the sidewall groups. Therefore (for example), if each sidewall incorporates a lip that overlaps with the lip of both adjacent sidewalls, then the minimum number of folding stages of lips is three, instead of two folding stages for packaging with an even number of sidewalls, where every other opposing lip group can be folded at once (i.e., a folding stage). With this, the embodiments described above where every lip has the same interlocking and/or holding features on each side is not possible. If an odd number of sidewalls exist, then at least one lip must have at least one different interlocking and/or holding feature on each side. In addition, one skilled in the art would realize that if at least one lip of a packaging design with an even number of sidewalls had at least one different interlocking and/or holding feature on each side, then this must be the case for at least one more lip. This argument also extends to other features such as sidewall and/or feature connected to the sidewalls.
[0131] The gauge of the mounting card material, design of the sidewall folds (i.e., folding lines) 131 through 134, and weight of the components on the sidewalls can all be manipulated such that the sidewall does not fall flat, if desirable. In one embodiment, the sidewall furthest from the user 138 of
[0132] The instructions on the sidewall may be step-by-step instructions 115 that have labels, such as numbers as shown in
[0133] The folds for the lips have similar properties to the folds for the sidewalls, and therefore, can also be made to fall flat or maintain an angle. In order for a fold to fall flat after opening, a thinner gauge material can be used for the mounting card, features such as perforations or score lines can be added to a folding line, in order to weaken it, and/or heavy components can be mounted to the corresponding lip, as shown in
[0134] The desired gauge of the mounting card is influenced by many factors, including the material of the mounting card, weight of the medical device components to be mounted, design of the component holding functional features cut into the card (e.g., retention tabs, folds, and/or straps), and desired robustness and stackability of the final configuration. A desirable thickness may be preferably between 0 mil and 100 mil, more preferably between 4 mil and 50 mil, even more preferably between 8 mil and 40 mil, and most preferably between 15 mil and 35 mil. Typically, an increase in the number of folds and/or interlocking mechanisms in the design leads to a decrease in the necessary thickness of the material, since the structural robustness is often increased. This is also the case when additional constraints are applied to the exterior of the mounting card, such as an exterior wrap (e.g., a central supply room (CSR) wrap 177 of
[0135] Mounting cards may be assembled by-hand; however, folding and loading a mounting card may be a tedious process, which may lead to long assembly times. To overcome this, the present patent application discloses a method of loading that includes at least one jig 195 of
[0136] As shown in
[0137] In the case that at least one retention feature is prepared to accept its corresponding component(s), the component(s) may then be dropped into at least one feature on the jig, such as recessed areas and/or between pins, that either assist in locking component(s) in their corresponding retention tab(s) and/or hold the component(s) under or between their corresponding retention fold(s). The components may also be directly locked into retention tab features in the card without further assistance from a feature on the jig. As shown in
[0138] When the card is lifted from the feature(s) on the jig, any manipulated retention fold(s) preferably fold onto their corresponding component(s), providing the necessary retention force to keep the component in-place, and component(s) preferably remain locked into any manipulated corresponding retention tabs. This is shown in
[0139] By using at least one jig for loading, the loading of the mounting card is similar to the loading of a tray, where components are dropped and/or snapped into place. In some cases, more complex folds can be made by mechanisms other than jigs, including by-hand or with automation, and may be used in combination with the jigs. In addition, jigs can be loaded, manipulated, and/or unloaded by-hand and/or by automation equipment. Preferably, for high volume medical devices, the majority of the assembly process is automated, and more preferably the entire assembly process is automated.
[0140] The present patent discloses a novel kit for mechanical negative pressure wound therapy (NPWT), which is an extension of the technology disclosed in U.S. Pat. No. 9,173,777 B2. The NPWT example presented in this disclosure is a novel negative pressure wound therapy kit, which includes additional components to clean and assess the wound: forceps 101; cotton swabs 102; ruler 103; saline container 104; and additional gauze sponges for cleaning 108. (Instead of a separate component in the kit, the ruler may be printed on at least one component of the final packaging embodiment; in this case, the ruler design may include perforations, scoring, and/or similar features, such that it can be easily torn from the packaging component during its use.) A key feature in using the disclosed packaging design for the NPWT kit for treating wounds is that the packaging design offers an embodiment that can be easily designed into an organized, no-touch wound dressing kit, which may be preferable. Many care facilities require that the staff use a no-touch technique when dressing open wounds, in order to reduce wound infection risk. For a no-touch dressing, the caregiver creates a sterile field with all of the necessary, sterile wound dressing components. Then, the caregiver does not touch the sterile field or any of its components by-hand. Instead, they wear non-sterile gloves and use two sterile forceps 101 and/or tweezers (i.e., one tool in each hand) to manipulate anything in the sterile field and/or any sterile components.
[0141] The forceps are only used to manipulate sterile objects and/or touch sterile surfaces. Care must be taken when transferring objects such as gauze from the sterile field to the patient, in order to perform a treatment procedure, such as cleaning the wound. In this case the forceps may be used to handle the components when treating the wound, but they are only allowed to contact the surfaces of the components that remain sterile and have not touched the patient or other non-sterile surface. During the entire procedure, the caregiver typically wears non-sterile gloves.
[0142] An example of the top and bottom of the final, packaged NPWT kit is shown in
[0143] The side of the header bag 178 with the outer label 212 and IFU 213 may be reversed, or the outer label 212 and IFU 213 may be placed on the same side of the header bag 178. In at least one preferred embodiment, the label 212 and the exposed cover of the IFU 213 can be read without opening the header bag. In at least one preferred embodiment, the IFU 213 is place on the same side of the header bag as the top of the loaded, final mounting card packaging configuration. In at least one preferred embodiment, the IFU 213 rests over a lip perimeter of the mounting card packaging, which may provide a more stable top surface for stackability. In this case, the IFU footprint is preferably large enough that it covers at least a continuous part of the lip perimeter.
[0144] After the final assembly is sterilized in the header bag 178, it is ready for use. To open the sterilized header bag 178, the header 214 is peeled away from the clear polymer bag, and the kit is slid out of the resulting opening in the bag. Then, for a no-touch procedure, the caregiver then holds the handle of the forceps 101b and opens the CSR wrap by lifting the tail of the CSR wrap sticking out of the fold in the CSR wrap that the forceps were in. It is important to maintain sterility of the grabbing ends of the forceps and the inside of the CSR wrap 177. The CSR wrap is completely unwrapped to the configuration shown in
[0145] After the CSR wrap is opened, the user can then use the first forceps to lift the left 186 and right 184 lips of the folded mounting card, as shown in
[0146] The user can follow the instruction label 115 and/or start the procedure; if a no-touch procedure is being implemented, the user will use the forceps in each hand to manipulate the components in a sterile manner. The forceps are then required until the wound is occlusively sealed (i.e., after step 4 on the instruction label, shown in
[0147] In at least one preferred embodiment, features may be added in the card to aid in component removal with the forceps and/or by-hand. These may take the form of strategically placed holes 215 of
[0148] During the procedure, any trash may be placed into the header bag, and when the procedure is over, any additional trash can be wrapped in the CSR wrap and placed in the header bag. This allows for easy and ambulatory clean-up. However, any disposal procedures of the care setting should always be followed, and any medical waste should be disposed of accordingly. In at least one embodiment, it is preferable that at least one of outside corners of the mounting card are rounded, that is, are shaped with a radius or other curvature instead of having a sharp angle, in order to increase the safety of the packaging and/or to prevent the card from puncturing any disposal container; it is more preferable that at least a majority of the outside corners are rounded, and it is even more preferable that all the outside corners are rounded.
[0149] Although specific features of the present invention are shown in some drawings and not in others, this is for convenience only, as each feature may be combined with any or all of the other features in accordance with the invention. While there have been shown, described, and pointed out fundamental novel features of the invention as applied to a preferred embodiment thereof, it will be understood that various omissions, substitutions, and changes in the form and details of the devices, packaging, and/or jigs illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit and scope of the invention. For example, it is expressly intended that all combinations of those elements and/or steps that perform substantially the same function, in substantially the same way, to achieve the same results be within the scope of the invention. Substitutions of elements from one described embodiment to another are also fully intended and contemplated. It is also to be understood that the drawings are not necessarily drawn to scale, but that they are merely conceptual in nature.
[0150] It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto. Other embodiments will occur to those skilled in the art and are within the following claims.