WO2012109697A1 - Ingrown toenail cutter - Google Patents
Ingrown toenail cutter Download PDFInfo
- Publication number
- WO2012109697A1 WO2012109697A1 PCT/AU2012/000028 AU2012000028W WO2012109697A1 WO 2012109697 A1 WO2012109697 A1 WO 2012109697A1 AU 2012000028 W AU2012000028 W AU 2012000028W WO 2012109697 A1 WO2012109697 A1 WO 2012109697A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shank
- ingrown toenail
- cutter
- curved
- component
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D29/00—Manicuring or pedicuring implements
- A45D29/02—Nail clippers or cutters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
- A61B17/3211—Surgical scalpels, knives; Accessories therefor
- A61B17/3213—Surgical scalpels, knives; Accessories therefor with detachable blades
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0042—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping
- A61B2017/00446—Surgical instruments, devices or methods, e.g. tourniquets with special provisions for gripping for use only by lefthanded or only by righthanded persons
Definitions
- This invention relates to an ingrown toenail cutter and has particular application to ingrown and incurved toenails. However the invention may also be used for cutting toenails which are not incurved or ingrown.
- Onychocryptosis (also known as in "ingrown toenail'') is a common nail ailment and is a very painful condition in which the nail grows so that it cuts into one or both sides of the nail bed which is a layer of tissue under the nail or nail plate which comprises dermis and epidermis. This condition may commonly occur in toenails but can also occur in nails of the hand or other foot nails other than toenails. Hence the term “toenails' as used herein also includes within its scope other nails as described above.
- Surgical techniques for removal of ingrown toenails involved use of a digital block to anaesthetise the nail and use of a tourniquet. Then an incision is made from the base of the nail leaving the nail bed intact and the incision is continued toward the side of the toe in an elliptical sweep to end up under the tip of the nail about 3-4mm in from the edge. In this procedure it was important that all the skin at the edge of the nail had to be removed. Again this was a time consuming procedure and the toe had to be soaked in warm water 3 times a day until healing occurred in 4-6 weeks.
- US Patent 1219626 which referred to a manicuring device having a shank which also includes a bent portion at one end which is provided with a slot which is provided with a cutting edge on a lower part of the slot in use. A fingernail to be trimmed is placed within the slot so as to be trimmed by the cutting edge. This device could not be used for removal of ingrown toenails as it could only be applied to trimming uninfected or normal nails.
- the ingrown toenail cutter of the invention includes a handle or shank which at one end has a curved part or angled part which extends away from the handle or shank and said curved or angled part has a cutting edge on an inner side thereof and there is also provided a terminal abutment at a free end of the curved or angled part on the inner side adjacent the cutting edge wherein the cutting edge is oriented at an acute angle of 15° - 60° to a longitudinal axis of the handle or shank.
- the handle or shank in one form of the invention may be integral with the curved or angled part so that the cutter is formed in one piece.
- a cutting component which includes the shank and the curved or angled part which is releasably attached to a handle part.
- the handle part in a
- the 10 desirable form of the invention may correspond or resemble a scalpel handle of conventional type.
- the scalpel handle may be releasably attached to the cutting component in a similar manner as a scalpel blade is releasably attached to a scalpel blade.
- the scalpel handle may include an elongate end extension which may releasably engage in a retention slot in a shank of
- the end extension may have opposed slots which engage with corresponding edges of the retention slot.
- the cutting component may be releasably attached to the handle part by any other form of reliable engagement such as by use of a grub screw or other fastener 0 interconnecting aligned apertures in both the handle component and the shank of the cutting component.
- this may more preferably be between 25° - 40° and most preferably be 30° or 35° or 25 therebetween.
- the shank of the cutting component is relatively straight and the curved part forms an end extension of the shank whereby the cutting edge may form the acute angle with the longitudinal axis of the shank as described above.
- Welded or attached to the curved part of the shank may be a web plate which
- the cutting component has the shank in the form of an elongate plate and the angled part is an end extension of the elongate plate whereby the cutting edge forms the acute angle as described above. On the inner side of the end extension is the cutting edge and there is also provided an outer edge in opposed relationship to the inner edge.
- the term “inner” having regard to the curved or angled part of the ingrown toenail cutter of the invention means that the inner side is located or defined by possessing the cutting edge and the terminal abutment. In relation to the term “outer” this means an edge or side of the angled or curved part which is substantially in opposed relationship with the inner side or edge.
- FIG 1 is a side view of one embodiment of the ingrown toenail cutter of the invention
- FIG 2 is a perspective view of the ingrown toenail cutter of FIG 1 ;
- FIG 3 is a detailed view of the area marked with a circle in phantom shown in FIG 2;
- FIG 4 is a perspective view showing initial removal of the cutter component from the scalpel component;
- FIG 5 shows partial removal of the cutter component from the scalpel component
- FIG 6 shows complete removal of the cutter component from the scalpel component
- FIG 7 is a detailed view of the leading end of the scalpel component
- FIGS 8-9 are views showing initial movement of the ingrown toenail cutter shown in FIGS 1-2 in use in removal of an ingrown toenail wherein the outer side is pushing down on the flesh of the toe adjacent the ingrown toenail.
- FIGS 10-11 shows subsequent movement of the ingrown toenail cutter with the blade hooked or placed under the ingrown toenail and the end protrusion engaging the ingrown toenail;
- FIG 12 shows the blade cutting the ingrown toenail in a sawing motion and at the same time pulling back in the direction of the arrow;
- FIG 13 shows complete removal of t e ingrown toenail
- FIG shows a perspective view of an alternative type of toenail cutter of the invention
- FIG 15 shows a detailed view of an area marked with a circle in phantom shown in FIG 14.
- FIGS 16-17 show a plan view of alternative cutting components for use in the invention.
- FIGS 1-3 there is provided an ingrown toenail cutter 10 having a cutter component 11 and a scalpel component or scalpel handle 12.
- the cutter component has angled part 14 and cutting edge 15 which as shown in FIGS 16-17 may extend at an acute angle a to the longitudinal axis of the shank 9 of cutting component 11.
- the longitudinal axis may be defined at least in part by projection 26 described hereinafter and at least in part by slot 23 of scalpel component 12 mentioned hereinafter.
- the angled part 14 has an inner side 14A on which the cutting edge 15 and the terminal abutment 17 is located as shown in FIG 3 and an outer side 16.
- the terminal abutment in the form of a small end protrusion 17 and cutting edge 5 is located between protrusion 17 and stem 19 of cutting component 11 which is shown in the form of an elongate narrow plate.
- the scalpel component has handle part 21 , corrugations 22 and slots 23 on either side of handle part 2 .
- FIG 4 is shown initial removal of cutting component 11 from scalpel component 12 and this is caused by pushing up with the thumb (not shown) on end part 20 as shown by the arrow A.
- cutting component 11 can be slidably removed from scalpel component 12 by movement in the direction marked with the arrow B in FIG 5. Further continued slidable movement is shown in FIG 6 which shows cutting component 11 completely separated from scalpel component 12.
- end part 26 which is in the form of an elongate protrusion has opposed slots 27 and 28 which each engage with a respective edge 29 and 30 of intermediate slot 31 of cutting component 11.
- Cutting component 11 also has larger slot 32 which prevents separation of elongate protrusion 26 from slot 31.
- FIGS 8-13 describe the method of use of ingrown toenail cutter 10 and in FIGS 8-9 there is shown the first step wherein outer side 16 of angled part 14 presses down on soft flesh 40 adjacent ingrown toenail 41 which adjoins toenail 42 located on toe 43.
- FIGS 10-11 there is shown angled part 14 hooked or placed under ingrown toenail 41 with small protrusion 17 engaging ingrown toenail 41 to locate or support cutting edge 15 in desired position as shown in FIG 11.
- soft flesh 42 has been omitted for convenience.
- FIG 12 there is shown cutting edge 15 being moved with a sawing action as shown by double headed arrow D and also with the cutter 10 being pulled back as shown by arrow E to partly remove ingrown toenail 41.
- FIG 13 there is shown the treated nail 41 with the ingrown toenail 41 completely removed.
- FIGS 14-15 there is shown another ingrown toenail cutter 10A of the invention where use is made of a handle 50 integral or release bly attached to cutting component or shank 51.
- Shank 51 is formed from rod of round cross section which has a curved part or end 52 integral with shank 51.
- a web plate 53 located on an inner side 14A of curved end 52 interconnecting shank 51 and a terminal projection in the form of hemispherical boss 56 shown in FIG 15.
- cavities or recesses 55 located on opposed sides of curved end 52. The purpose of the opposed cavities 55 is to reduce the overall width of curved end 52 and this facilitates the use of ingrown toenail cutter 10A in a manner similar to nail cutter 10 as shown in FIGS 8-13.
- outer side 16A Web plate 53 also has cutting edge 54 aligned at an angle a of 30° - 35° to longitudinal axis 49 of shank 51.
- both a left handed version as well as a right handed version of the cutter 10 or 10A be provided so that whether a left hand side or right hand side of toenail 43 requires removal of an ingrown toenail 41.
- FIGS 16-17 illustrates a cutting component 11A wherein cutting edge 15 extends at angle a to longitudinal axis 9 of shank 19 of cutting component 11 A and wherein angled part 14 extends to the right of longitudinal axis 9 and in cutting component 11 B wherein angled component 14 extends to the left of longitudinal axis 9 at angle a to longitudinal axis 9.
- angle a can be 30° or 35° or any value between these angles.
- the right hand component 11 A can be used for cutting left hand comers of the user's toenails and the left hand component 11 B would be suitable for cutting a left hand corner of the user's toenails.
- the ingrown toenail cutter of the invention is of extremely simple construction and very effective in use.
- the use of a conventional scalpel handle is also extremely advantageous and avoids manufacture of an integral handle.
- the ingrown toenail cutter of the invention is also very simple to use in practice as shown in FIGS 8-13 wherein the outer side 16 is pressed against the soft flesh 40 adjacent ingrown toenail 41 to allow the cutting edge 15 to be inserted under ingrown toenail 41 and levered into desired position for cutting ingrown toenail 41 with projection 17 permitting cutting edge 15 to be safely inserted under ingrown toenail 41 and located in an appropriate position as shown in FIG 11 to enable cutting edge 15 to be drawn back and forth or in a sawing or reciprocatory fashion to cut ingrown toenail 41 as shown in FIGS 12-13.
- projection 17 is important because it makes the ingrown toenail cutter of the invention extremely safe to use because projection 17 or boss 56 will ensure that the cutting edge 15 will not cut or remove tissue if the ingrown toenail cutter 10 or 10A is used in the manner described above. This also means that the ingrown toenail cutter 10 can be used by any member of the public or unskilled person without the requirement of a podiatrist. This is achieved by projection 7 or boss 56 ensuring that the cutting edge 15 to be safely inserted under ingrown toenail 41 and located in desired position as described above.
- the ingrown toenail cutter of the invention should be immersed in a solution of warm water which optionally can contain wetting agents and/or disinfectants.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Knives (AREA)
- Scissors And Nippers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/985,082 US20130319446A1 (en) | 2011-02-14 | 2012-01-16 | Ingrown toenail cutter |
GB1315091.7A GB2501451A (en) | 2011-02-14 | 2012-01-16 | Ingrown toenail cutter |
AU2012219012A AU2012219012A1 (en) | 2011-02-14 | 2012-01-16 | Ingrown toenail cutter |
CN201280012130.6A CN103415228B (en) | 2011-02-14 | 2012-01-16 | Embedding toenail cutter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2011900476A AU2011900476A0 (en) | 2011-02-14 | Ingrown toenail cutter | |
AU2011900476 | 2011-02-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012109697A1 true WO2012109697A1 (en) | 2012-08-23 |
Family
ID=46671863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2012/000028 WO2012109697A1 (en) | 2011-02-14 | 2012-01-16 | Ingrown toenail cutter |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130319446A1 (en) |
CN (1) | CN103415228B (en) |
AU (1) | AU2012219012A1 (en) |
GB (1) | GB2501451A (en) |
WO (1) | WO2012109697A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2567136C1 (en) * | 2014-11-27 | 2015-11-10 | Дилфуза Кахрамоновна Амонова | Disposable manicure tool |
IT201700029476A1 (en) * | 2017-03-16 | 2018-09-16 | Problade S R L | Cutting element and cutting device comprising this cutting element |
USD861988S1 (en) | 2018-06-13 | 2019-10-01 | Just Gotta Have It, LLC | Body exfoliation tool |
KR102494436B1 (en) * | 2020-08-19 | 2023-01-31 | 인제대학교 산학협력단 | Medical scalpel unit |
KR102313016B1 (en) * | 2021-07-23 | 2021-10-14 | 주식회사 덴탈스튜디오 | Medical Scalpel Holder with Easy Blade Removal |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1546975A (en) * | 1924-10-21 | 1925-07-21 | Feller Charles | Fish-splitting knife |
US3610246A (en) * | 1969-09-18 | 1971-10-05 | James H Salmon | Surgical knife blade |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US448409A (en) * | 1891-03-17 | Isabel cassidy | ||
US528317A (en) * | 1894-10-30 | Manicure instrument | ||
US464341A (en) * | 1891-12-01 | Nail-cutter | ||
US534500A (en) * | 1895-02-19 | Manicuring implement | ||
US350720A (en) * | 1886-10-12 | coates | ||
US1089019A (en) * | 1912-01-06 | 1914-03-03 | Oscar F Swasey | Knife. |
US1040446A (en) * | 1912-05-18 | 1912-10-08 | Joseph Walter Smith | Manicure-kit. |
US1135987A (en) * | 1914-08-04 | 1915-04-20 | Titus Andrew Beecher | Knife-blade. |
US1476508A (en) * | 1922-09-13 | 1923-12-04 | Hart Walter | Surgical instrument for chiropodists and the like |
US1855063A (en) * | 1931-10-16 | 1932-04-19 | Frank D Lovette | Manicuring implement |
US2479514A (en) * | 1947-10-20 | 1949-08-16 | Leslie C Rucker | Pedicure instrument |
US2801640A (en) * | 1954-02-08 | 1957-08-06 | William E Steele | Nail side trimming devices |
US3445931A (en) * | 1966-06-29 | 1969-05-27 | Lester O Knudson | Cutlery dressing tool |
US3600803A (en) * | 1969-06-13 | 1971-08-24 | Zolman Nachsi | Corn and nail cutter |
US3670733A (en) * | 1970-09-14 | 1972-06-20 | Richard S Carlisle | Precise depth cutter |
US4709481A (en) * | 1986-08-19 | 1987-12-01 | Moore Milton D | Shaving tool |
US4964213A (en) * | 1987-10-08 | 1990-10-23 | Suggs Patricia A | Nail cutting device and associated method for treating and/or preventing ingrown nails |
CN2184410Y (en) * | 1993-12-19 | 1994-12-07 | 宋基学 | Nail bed series cutting blade |
US5437679A (en) * | 1994-05-31 | 1995-08-01 | Gaillard; Douglas S. | Nail splitter device for implementing a wedge resection procedure to remove an ingrown toenail |
ITPD940102A1 (en) * | 1994-06-02 | 1995-12-02 | Luigina Grigoletto | MULTIPLE TOOL FOR PEDICURE OR SIMILAR OPERATIONS |
US5755239A (en) * | 1996-04-18 | 1998-05-26 | Baltierra; Julie | Pterygium spade manicuring appliance |
US5881461A (en) * | 1997-06-14 | 1999-03-16 | Schwartz; Stanford | Nail cutter/clipper for treating ingrown nails and hang nails and/or preventing ingrown nails |
US6402763B1 (en) * | 2000-11-29 | 2002-06-11 | Ronald W. Scott | Method and apparatus for extricating ingrown hairs and relieving pain and discomfort associated with psuedofolicullitis barbae (PFB) |
US20050092337A1 (en) * | 2003-06-30 | 2005-05-05 | Terry Cyrus | Hygienic disposable cuticle remover |
US7322107B2 (en) * | 2003-09-16 | 2008-01-29 | Perfect Nail Products, Inc. | Manicuring appliance |
US8372086B2 (en) * | 2004-08-09 | 2013-02-12 | Lesley Lind | Skin care file and method |
US20080078085A1 (en) * | 2006-09-29 | 2008-04-03 | Cornelia Wittke-Kothe | Nail-treatment device |
US20090090375A1 (en) * | 2007-10-08 | 2009-04-09 | Tran Christine | multi-function cosmetic device |
US20090090377A1 (en) * | 2007-10-08 | 2009-04-09 | Tran Christine | Multi-function fingernail device |
-
2012
- 2012-01-16 US US13/985,082 patent/US20130319446A1/en not_active Abandoned
- 2012-01-16 GB GB1315091.7A patent/GB2501451A/en not_active Withdrawn
- 2012-01-16 AU AU2012219012A patent/AU2012219012A1/en not_active Abandoned
- 2012-01-16 CN CN201280012130.6A patent/CN103415228B/en not_active Expired - Fee Related
- 2012-01-16 WO PCT/AU2012/000028 patent/WO2012109697A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1546975A (en) * | 1924-10-21 | 1925-07-21 | Feller Charles | Fish-splitting knife |
US3610246A (en) * | 1969-09-18 | 1971-10-05 | James H Salmon | Surgical knife blade |
Also Published As
Publication number | Publication date |
---|---|
AU2012219012A1 (en) | 2013-05-23 |
GB2501451A (en) | 2013-10-23 |
GB201315091D0 (en) | 2013-10-09 |
CN103415228B (en) | 2015-12-09 |
CN103415228A (en) | 2013-11-27 |
US20130319446A1 (en) | 2013-12-05 |
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