BACKGROUND OF THE INVENTION
Field of the Invention
The present disclosure relates to a medical device with an anti-peeling flash feature for use with a packing film
Description of Related Art
Male and female disinfecting cap devices are commonly utilized for disinfecting various medical devices, such as luer connectors or catheter connectors. These disinfecting caps are typically made of an injection moldable thermoplastic, of cylindrical design, with at-least one open end.
Referring to FIG. 1, a disinfecting cap 1 has a sealing surface 2 feature formed by a flat circular area tangent to an open end 3 of the cap 1, such that it can be thermally (heat) sealed closed at manufacturing with a web peel film packaging. The peel film packaging keeps the disinfecting solution or contents of the disinfecting cap 1 from evaporating during shipping and storage. When the cap 1 is ready for use by a clinician, the peel film packaging is peeled away from the cap 1 opening such that the disinfecting cap 1 can be placed on a medical device.
A disadvantage of the disinfecting caps use of a flat circular sealing surface is that the cap's sealing surface is prone to deformation during the heat sealing process of sealing the peel film web packaging. In particular, the deformation may take the form of flash (similar to flash that may occur during injection molding), where the cap sealing surface material deforms or extrudes out into a thin film that expands out and radially away from the sealing surface. This flash film typically occurs radially outward away from the cap opening, but may form inward, towards the center of the cap opening. When a clinician opens the cap by peeling the peel film web away from the cap, this flash can partially stick to the peel film and tear away from the cap sealing surface, forming a plastic string or debris. The length of these plastic strings have been observed to be up to half of the circumference of an outer sealing surface perimeter of the cap. Such plastic strings can be a medical issue if they become detached and ingress into a fluid path, such as a catheter fluid path via a catheter hub or connector.
SUMMARY OF THE INVENTION
In one aspect or embodiment, a medical device includes a body having a first end and a second end positioned opposite the first end, with the body defining an opening extending from the first end and including a sealing surface extending radially outward from the opening. At least a portion of the sealing surface includes a non-circular perimeter pattern.
An entirety of the sealing surface may include the non-circular perimeter pattern. The non-circular perimeter pattern may be co-planar with the sealing surface. The non-circular perimeter pattern may be a sawtooth shape. The non-circular perimeter pattern may be a plurality of triangles, with a plurality of triangle-shaped recessed areas defined between the non-circular perimeter pattern and an outer edge of the first end of the body. At least a portion of the non-circular perimeter pattern may extend to an outer edge of the first end of the body. The medical device may be a disinfecting cap, where the second end of the body is closed. An inner surface of the opening of the body may be threaded. The first end may include a flange extending radially outward from the body, where at least a portion of the sealing surface is provided on the flange. The body may include a plurality of ribs extending in a direction from the first end of the body toward the second end of the body. The medical device may further include a packaging film thermally adhered to the sealing surface. The packaging film may form a fluid tight seal with the body.
In a further aspect or embodiment, a medical device includes a body having a first end and a second end positioned opposite the first end, with the body defining an opening extending from the first end and including a sealing surface extending radially outward from the opening. At least a portion of the sealing surface may include a plurality of recessed areas.
Each of the plurality of recessed areas may be rectangular. Each of the plurality of recessed areas may be sloped. Each of the plurality of recessed areas may be spaced from each other.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a prior art disinfecting cap;
FIG. 2 is a perspective view of a medical device according to one aspect or embodiment of the present application;
FIG. 3 is a cross-sectional view of the medical device of FIG. 2;
FIG. 4 is a perspective view of the medical device of FIG. 2, showing the medical device with a packaging film;
FIG. 5 is partial cross-sectional view of the medical device of FIG. 2, showing the medical device with a packaging film and no flash defect;
FIG. 6 is partial cross-sectional view of the medical device of FIG. 2, showing the medical device with a packaging film and flash defect;
FIG. 7 is perspective view of a medical device according to a further aspect or embodiment of the present application; and
FIG. 8 is a perspective view of a medical device according to a further aspect or embodiment of the present application.
DESCRIPTION OF THE INVENTION
The following description is provided to enable those skilled in the art to make and use the described embodiments contemplated for carrying out the invention. Various modifications, equivalents, variations, and alternatives, however, will remain readily apparent to those skilled in the art. Any and all such modifications, equivalents, variations, and alternatives are intended to fall within the spirit and scope of the present invention.
For purposes of the description hereinafter, the terms “upper”, “lower”, “right”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “lateral”, “longitudinal”, and derivatives thereof shall relate to the invention as it is oriented in the drawing figures. However, it is to be understood that the invention may assume various alternative variations, except where expressly specified to the contrary. It is also to be understood that the specific devices illustrated in the attached drawings, and described in the following specification, are simply exemplary embodiments of the invention. Hence, specific dimensions and other physical characteristics related to the embodiments disclosed herein are not to be considered as limiting.
Referring to FIGS. 2-6, a medical device 10 according to one aspect or embodiment of the present application, includes a body 12 having a first end 14 and a second end 16 positioned opposite the first end 14, with the body 12 defining an opening 18 extending from the first end 14 and including a sealing surface 20 extending radially outward from the opening 18. At least a portion of the sealing 20 includes a non-circular perimeter pattern 22. The non-circular perimeter pattern 22 is configured to prevent the formation of plastic strings or debris during separation of a packaging film 24 is removed from the medical device 10. The non-circular perimeter pattern 22 is configured to provide a plurality of stress concentration points to ensure any flashing created when the packaging film 24 is thermally sealed to the sealing surface 20 separates from the packaging film 24 when the packaging film 24 is peeled or removed from the sealing surface 20. Accordingly, rather than forming plastic strings, the non-circular perimeter pattern 22 is configured to ensure separation of any flashing and the packaging film 24 such that any flashing remains connected to the body 12 of the medical device 10.
Referring to FIG. 2, an entirety of the sealing surface 20 includes the non-circular perimeter pattern 22. In one aspect or embodiment, the body 12 is cylindrical and the sealing surface 20 extends 360 degrees at the first end 14 of the body 12, with the non-circular perimeter pattern 22 provided along the entire perimeter of the sealing surface 20. The non-circular perimeter pattern 22 is co-planar with the sealing surface 20, although other suitable arrangements may be utilized. The non-circular perimeter pattern 22 is a sawtooth shape, although other suitable patterns, such as a crenulated pattern or alternating triangular pattern, may be utilized. In some aspects or embodiments, the sawtooth shape is defined by a plurality of triangles 26, with a plurality of triangle-shaped recessed areas 28 defined between the non-circular perimeter pattern 22 and an outer edge 30 of the first end 14 of the body 12. At least a portion of the non-circular perimeter pattern 22, such as a peak of each triangle 26, extends to the outer edge 30 of the first end 14 of the body 12, although other suitable arrangements may be utilized. The body 12 is formed from a polymer, such as a thermoplastic, although other suitable materials may be utilized.
Referring again to FIGS. 2-6, in one aspect or embodiment, the medical device 10 is a disinfecting cap, such as a disinfecting cap for another medical device, medical connector, catheter connector, etc. In some aspects or embodiments, the medical device 10 is a medical connector. As shown in FIG. 3, the second end 16 of the body 12 is closed. An inner surface of the opening 18 of the body is threaded to allow the body 12 to be threaded onto a mating connector, although other suitable arrangements may be utilized. The first end 14 includes a flange 32 extending radially outward from the body 12, with at least a portion of the sealing surface 20 provided on the flange 32. The body 12 includes a plurality of ribs 34 extending in a direction from the first end 1412 of the body toward the second end 16 of the body 12. The plurality of ribs 34 are configured to provide a gripping surface to enable a clinician to more easily grasp and turn the medical device 10. As shown in FIGS. 4-6, in some aspects or embodiments, the medical device 10 includes the packaging film 24 thermally adhered to the sealing surface 20. The packaging film 24 forms a fluid tight seal with the body 12. The body 12 may contain a disinfecting fluid within the opening 18, with the packaging film 24 preventing evaporation or spillage of the fluid from the opening 18.
Referring to FIG. 6, when the packaging film 24 is thermally adhered to the sealing surface 20 of the body 12, flashing or melting 36 of the body 12 may occur at several points on the first end 14 of the body 12. The stress concentration points formed by the non-circular perimeter pattern 22 are configured enable separation of the packaging film 24 from the flashing or flash 36 when the packaging film 24 is removed from the body 12 during use of the medical device 10.
Referring to FIG. 7, in a further aspect or embodiment, at least a portion of the sealing surface 20 includes a plurality of recessed areas 38 rather than the non-circular perimeter pattern 22. The plurality of recessed areas 38 may function similarly to the non-circular perimeter pattern 22 described above. Each of the plurality of recessed areas 38 are rectangular, although other suitable shapes may be utilized. Each of the plurality of recessed areas 38 are sloped, although the recessed areas 38 may be flat-bottomed in some aspects or embodiments. Each of the plurality of recessed areas 38 are spaced from each other. The plurality of recessed areas 38 are formed around the perimeter of the sealing surface 20 and are positioned at the outer edge 30 of the first end 14 of the body 12, although other suitable arrangements may be utilized.
Referring to FIG. 8, in a further aspect or embodiment, the medical device 10 is packaging or a tray, with the sealing surface 20 with the packaging film 24 configured to be thermally sealed to the sealing surface 20 in the same manner as discussed above. Rather than being circular, the medical device 10 may be square or rectangular in shape and include a first side 40, a second side 42 positioned opposite the first side 40, a third side 44, and a fourth side 46 positioned opposite the third side. The sealing surface 20 also includes the non-circular perimeter pattern 22. As shown in FIG. 8, in some aspects or embodiments, the non-circular perimeter pattern 22 only includes the triangles 26 and recessed areas 28 at the first side 40 and the second side 42, with straight or linear portion of the sealing surface extending along the third side 44 and the fourth side. The non-circular perimeter pattern 22 is aligned parallel with a peel line of the packaging film 24. The non-circular perimeter pattern 22 may not be along an intended direction of peel, which is normal to the peel line.
Although the present disclosure has been described in detail for the purpose of illustration based on what is currently considered to be the most practical and preferred embodiments or aspects, it is to be understood that such detail is solely for that purpose and that the present disclosure is not limited to the disclosed embodiments or aspects, but, on the contrary, is intended to cover modifications and equivalent arrangements that are within the spirit and scope of the appended claims. For example, it is to be understood that the present disclosure contemplates that, to the extent possible, one or more features of any embodiment may be combined with one or more features of any other embodiment.
Patent Application
20240165389
