Nasal-packing article

• US 5,584,827 A
• Filed: 08/24/1994
• Issued: 12/17/1996
• Est. Priority Date: 05/18/1992
• Status: Expired due to Term

• Current Assignee: Beaver-Visitec International, Inc (BVI Medical, Inc.)
• Original Assignee: Ultracell Medical Technologies, Inc.
• Inventors: Korteweg, George P., Korteweg, Wayne
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): Snow, Bruce E.
• Application Number:
  US08/295,109
• Time in Patent Office: 846 Days
• Field of Search: 606/191, 606/196, 606/199, 604/285-288, 604/369, 604/374, 604/377, 604/378, 604/385.1, 604/379-380, 604/1-3, 604/11-18, 604/904, 604/358, 602/46-47, 602/57
• US Class Current: 604/369
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12104 in an air passage
• CPC Class Codes: A61B 17/1219 expandable in contact with liquids
• CPC Class Codes: A61B 17/24 for use in the oral cavity, larynx, bronchial passages or nose for medical inspection of cavities or tubes in the body A61B1/00; Tongue scrapers
• CPC Class Codes: A61F 13/126 specially adapted for the nose
• CPC Class Codes: A61F 13/2005 specially adapted for the nose cavity
• CPC Class Codes: A61F 2013/00468 applying local pressure
• CPC Class Codes: A61F 2013/00476 for nose
• CPC Class Codes: A61F 2013/00553 with detachable parts
• CPC Class Codes: Y10S 604/904 Tampons

Abstract

A nasal packing article, made from a material that is expansible when wetted, is formed with a plurality of laminae that are independently movable and separable from one another, and that expand to effectively exert hemostatic pressure. The article may comprise an assembly of layers interengaged in face-to-face contact, or it may be defined by slits that extend entirely through the thickness or width of the body but terminate short of one end, to leave the laminae connected thereat.

Claims

1. A laminar nasal packing article fabricated from a porous, absorbent, cellular material that is compressible to a dimensionally stable form, when dry, and is expansible from its dry, compressed state when wetted and is resiliently deformable in its wet, expanded state, said article comprising a plurality of laminae, each lamina having opposite ends, opposed transverse faces and opposed lateral faces, and each lamina having a length dimension, taken between said opposite ends, and a thickness dimension and a width dimension taken, respectively, between said opposed transverse faces and said opposed lateral faces, said laminae being disposed with said transverse faces of adjacent lamina in mutual, direct, full-surface contact and being compressed together in the dry state and in the direction perpendicular to said contacting transverse faces to thereby bond and unite said laminae in a stable, dry, compressed state of mechanical interengagement throughout the areas of said mutual contact, said dry laminae being devoid of any container comprising said article and being manually disengagable inwardly from one of said ends and along at least a major portion of the length of said article to enable at least partial delamination and removal of said laminae from one another, and said lamina being free to move independently and to separate from one another along said major portion in hydrated condition for effectively applying gentle pressure to substantially all parts of the nasal cavity in which said article is inserted.

2. The article of claim 1 wherein each of said laminae is of uniform thickness.

3. The article of claim 2 wherein at least one of said laminae is substantially thinner than at least one other of said laminae.

4. The article of claim 3 comprising at least two of said substantially thinner laminae, said two substantially thinner laminae being exteriorly disposed on said article.

5. The article of claim 1 wherein all of said faces are substantially planar.

6. The article of claim 1 wherein at least one of said laminae is fabricated from a first material that is substantially different from a second material, at least one other of said laminae being fabricated from said second material.

7. The article of claim 6 wherein the pores of said first material are of substantially smaller average size than the pores of said second material.

8. The article of claim 7 comprising two exterior laminae fabricated from said first material.

9. The article of claim 1 comprising at least five of said laminae, said article having an overall thickness, in its fully expanded and unattenuated form, of at least about 10 mm.

10. The article of claim 2 wherein all of said laminae are substantially identical.

11. The article of claim 1 wherein said article is uncompressed in the direction of its length.

12. The article of claim 1 additionally including connecting means serving to more permanently secure said laminae together, to maintain said full-surface contact therebetween;

adjacent the other of said opposite ends.

13. The article of claim 12 wherein said connecting means comprises means selected from the class consisting of an adhesive bond, a fusion bond, a substantially rigid mechanical fastener, and a string.

14. The article of claim 12 constituted by a single piece of said material severed to form said laminae, said connecting means comprising an unsevered section of said piece adjacent said other end.

15. The article of claim 1 further including a hollow tubular element oriented lengthwise of said article and extending entirely therethrough.

16. The article of claim 1 wherein at least one of said laminae is subdivided, along at least one plane extending lengthwise of said article and perpendicular to said contacting faces, into a plurality of substantially independent fingers.

17. The article of claim 1 wherein said thickness dimension is substantially less than said width dimension.

18. The article of claim 1 wherein said length dimension is substantially greater than each of said thickness and said width dimensions.

19. A laminar nasal packing article fabricated from a porous, absorbent, cellular material that is compressible to a dimensionally stable form, when dry, and is expansible from its dry, compressed state when wetted and is resiliently deformable in its wet, expanded state, said article comprising a plurality of laminae, each lamina having opposite ends, opposed transverse faces and opposed lateral faces, and each lamina having a length dimension, taken between said opposite ends, and a thickness dimension and a width dimension taken, respectively, between said opposed transverse faces and said opposed lateral faces, said laminae being disposed with said transverse faces of adjacent lamina in mutual, direct, full-surface contact and being compressed together in the dry state and in the direction perpendicular to said contacting transverse faces to thereby bond and unite said laminae in a stable, dry, compressed state of mechanical interengagement throughout the areas of said mutual contact, said dry laminae being devoid of any container comprising said article and being manually disengagable inwardly from one of said ends and along at least a major portion of the length of said article to enable at least partial delamination and removal of said laminae from one another, and said lamina being free to move independently and to separate from one another along said major portion in hydrated condition for effectively applying gentle pressure to substantially all parts of the nasal cavity in which said article is inserted, said article further including connecting means serving to more permanently secure said laminae together, to maintain said full surface contact therebetween, adjacent the other of said opposite ends.

20. The article of claim 19 wherein said connecting means comprises means selected from the class consisting of an adhesive bond, a fusion bond, a substantially rigid mechanical fastener, and a string.

21. The article of claim 19 constituted by a single piece of said material severed to form said laminae, said connecting means comprising an unsevered section of said piece adjacent said other end.

22. The article of claim 19 comprising at least five of said laminae, said article having an overall thickness, in its fully expanded and unattenuated form, of at least about 10 mm.