CN103415228B

CN103415228B - Ingrown toenail cutter

Info

Publication number: CN103415228B
Application number: CN201280012130.6A
Authority: CN
Inventors: 艾伦·海德格尔
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-02-14
Filing date: 2012-01-16
Publication date: 2015-12-09
Anticipated expiration: 2032-01-16
Also published as: GB201315091D0; CN103415228A; US20130319446A1; WO2012109697A1; GB2501451A; AU2012219012A1

Abstract

An ingrown toenail cutter (10, 10A) comprising a handle or shank (12, 12A) which at one end has a curved or angled portion (14, 52) extending away from the handle (12, 12A) and said curved or angled portion (14, 52) has a cutting edge (15, 54) on an inner side (14A) thereof and also provides a terminal fulcrum (17, 56) on the inner side (14A) adjacent to the cutting edge (15, 54) at the free end of the curved or angled portion (14, 52) wherein the cutting edge (15, 54) is oriented at an angle of 15 ° to 60 ° relative to the longitudinal axis of the handle or shank.

Description

Embedding toenail cutter

Technical field

The present invention relates to a kind of embedding toenail cutter and be specially adapted to inwardly growth and aduncate toenail.But the present invention can also be used for cutting and not curve inwardly or ingrown toenail.

Background technology

Onychocryptosis (being also called as " embedding toenail ") is a kind of common disease of nail and is a kind of situation very bitterly, wherein in the nail growth side that must cut lactulum unguis or both sides, lactulum unguis is the layer tissue below nail or nail plate, and it comprises corium and epidermis.This situation may occur commonly in toenail, but also can occur in the finger nail except toenail or other toenails.Thus term " toenail " comprises other nails as described above equally within the scope of it as used herein.

The conventional method for the treatment of embedding toenail comprises removes growth toenail part (that is, " embedding toenail ") under the skin, and this part needs to be removed after application of local anesthetic by podiatrist.Once toe is numb, podiatrist just can remove this embedding toenail, and can damage nail matrix or nail root with phenol or let slip nail matrix.After arbitrary process, this nail must be wrapped up with antibiotic cream and bandage.Will be appreciated that this is a very consuming time and process for misery.

Surgical technic for removing embedding toenail relates to the use of finger-like blocker and the use of tourniquet that nail is anaesthetized.Then, it is complete for making an otch from the base portion of this nail and leave lactulum unguis, and is continued in an oval scope side of this otch towards this toe, until below this nail tip, apart from till edge is about 3-4mm.In this process, the skin that importantly this nail edge is all must be removed.Again, this is a process consuming time and this toe must steep for one day 3 times in warm water until in 4-6 week and occurs healing.

Can also with reference to WO2009/156788, which describe a kind of toe the constraint tool, this instrument has a toe constraint hook in each end, this end refers to a bending end, and this bending end has for retraining toe and the tip keeping toe stable when carrying out treating such as filing on toe.But this instrument can not be used for the treatment of embedding toenail.

United States Patent (USP) 4936322 relates to a kind of purposes of embedding toenail part remover, this remover is a hollow cylindrical rod, this cylindrical rod has the end of a wedge shape, the shape of this end is confirmed as comprising constrain an of soft tissue and a guarded knife surface, this guarded knife surface has the cutting edge being positioned at this rod, with the multiple parts making this cutting edge when being pulled open by this rod cut this embedding toenail.This is one and manufactures complicated instrument, and it is shady in effective purposes for the treatment of in embedding toenail.

Can also see United States Patent (USP) 1219626, it relates to a kind of device of having a manicure with a bar, this bar also comprises a sweep at one end, and this sweep is equipped with a line of rabbet joint, and this line of rabbet joint possesses a cutting edge on the bottom of this line of rabbet joint in use.The finger nail needing to be pruned is placed in this line of rabbet joint, to be pruned by this cutting edge.This device can not be used for removing embedding toenail, because it only can be applied to that pruning is not infected or normal nail.

Goal of the invention

Therefore, the object of this invention is to provide one efficient embedding toenail cutter in use.

Summary of the invention

Embedding toenail cutter of the present invention comprises a handle (handle) or bar (shank), this handle or bar have the part of the bending part of of extending away from this handle or bar or angulation at one end, and described part that is bending or angulation has a cutting edge within it, and this cutting edge part contiguous provides a terminal fulcrum on the free end of this part that is bending or angulation is inside this, wherein this cutting edge is relative to the longitudinal axis of this handle or bar with the angle orientation of 15 ° to 60 °.

Handle of the present invention or bar part that is bending or angulation can be one with this in one form, and this cutter is that single type is formed like this.In another kind arranges, a cutting part can be provided, this cutting part comprise this bar and be attached to releasedly this on a shank portion bending or the part of angulation.Shank portion of the present invention can meet or be similar to the scalpel handle of general type in a kind of desired form.Therefore, in this arrangement, this scalpel handle can be attached on this cutting part releasedly, and the mode that its mode and scalpel handle are attached on scalpel blade is releasedly similar.Therefore or rather, this scalpel handle can comprise a microscler terminal expansion, and this microscler terminal expansion can be bonded in a maintenance line of rabbet joint in the bar of this cutting part releasedly.In this embodiment, this terminal expansion can have multiple relative line of rabbet joint, and these lines of rabbet joint combine with the respective edges of this maintenance line of rabbet joint.

But, this cutting part can be attached on this shank portion releasedly by the positive engagement of any other form, such as by use flat head screw or other securing members, thus the opening of this shank part with the multiple alignment in the bar of this cutting part is interconnected.

About the acute angle between cutting edge and this handle or bar, this acute angle can be more preferably between 25 °-40 ° and be most preferably 30 ° or 35 ° or they between.

In a kind of form of the present invention, the bar of this cutting part is relatively straight, and this bending part defines a terminal expansion of this bar, and this cutting edge can form acute angle as above with the longitudinal axis of this bar thus.A web can weld or be attached on the sweep of this bar, and this bar adjacent end and this terminal fulcrum interconnect by this web.The free edge of this web can form cutting edge.

In another kind of form of the present invention, this cutting part has the bar being in long shaped plate form, and the part of this angulation is the terminal expansion of this long shaped plate, and this cutting edge defines acute angle as above thus.The inner side of this terminal expansion is this cutting edge, and provides the outward flange becoming inverse relationship with this inward flange.

Should be realized that, with this of embedding toenail cutter of the present invention bending or term " interior " that the part of angulation is relevant refer to, by there is cutting edge and terminal fulcrum positions or limits inside this.About term " outward ", this refers to that one of this angulation or bending part is in edge or the side of inverse relationship substantially with inner side or inward flange.

In another aspect of the present invention, provide a kind of method using embedding toenail cutter of the present invention, the method comprises the following steps:

I () outside of part that is bending or angulation extrudes the soft meat of toe near an embedding toenail with this;

(ii) part that is that this bent or angulation is placed under this embedding toenail, and wherein this terminal fulcrum engages with the outer surface of this embedding toenail; And

(iii) by using this cutting edge with reciprocating or the motion of sawing formula and cut this embedding toenail away from an adjacent toenail, and pull part that is that this bends or angulation away from this embedding toenail, to be separated this embedding toenail from this toenail simultaneously.

Again in another, this cutting part itself is provided of the present invention.

Accompanying drawing explanation

Now can see a preferred embodiment of the present invention as shown in the drawings, wherein:

Fig. 1 is the side view of an embodiment of embedding toenail cutter of the present invention;

Fig. 2 is the perspective view of the embedding toenail cutter of Fig. 1;

Fig. 3 is the detailed view in the region marked with the circle shown in diastema in Fig. 2;

Fig. 4 is the perspective view that tool parts is taken off in display from scalpel parts;

Fig. 5 shows and takes off this tool parts with dividing from this scalpel section upper;

Fig. 6 shows and take off tool parts completely from these scalpel parts;

Fig. 7 is the detailed view of the leading edge of these scalpel parts;

Fig. 8-9 shows the view starting movement when embedding toenail in use removed by the embedding toenail cutter shown in Fig. 1 to 2, and wherein outside pushes away downwards on the toe meat of this embedding toenail contiguous;

Figure 10-11 shows the subsequent movement of this embedding toenail cutter, and wherein blade to be hooked on or to be placed under embedding toenail and end-boss engages with this embedding toenail;

Figure 12 shows with the sawing formula motion embedding toenail of cutting and the blade simultaneously retracted in the direction of the arrow;

Figure 13 shows the removal completely of embedding toenail;

Figure 14 shows the perspective view of the toenail cutter of alternative type of the present invention;

Figure 15 shows the detailed view in the region marked with the circle shown in diastema in Figure 14; And

Figure 16-17 shows the plan view for the substituted type cutting part in the present invention.

Detailed description of the invention

Provide an embedding toenail cutter 10 in fig. 1-3, this embedding toenail cutter has a tool parts 11 and scalpel parts or scalpel handle 12.This tool parts has part 14 and the cutting edge 15 of angulation, and this cutting edge can extend with a sharp angle α relative to the longitudinal axis of the bar 19 of cutting part 11 as shown in figs. 16-17.In fig. 1-3, this longitudinal axis can be limited by the protuberance 26 hereinafter described at least in part and be limited by the line of rabbet joint 23 of the scalpel parts 12 hereinafter mentioned at least in part.The part 14 of angulation has a 14A and outside 16, an inner side, located cutting edge 15 and terminal fulcrum 17, as shown in Figure 3 on inside this.Terminal fulcrum is the form being in little end-boss 17, and cutting edge 15 is that this stalk portion is shown as the form of microscler narrow boards between protruding 17 and the stalk portion 19 of cutting part 11.These scalpel parts have shank portion 21, fold 22 and the line of rabbet joint 23 on shank portion 21 either side.

Illustrated in Fig. 4 and take off cutting part 11 from scalpel parts 12, and this is by with thumb (not shown) upwards pushing tow and causing as shown by arrow A on end section 20.Cutting part 11 can be moved up by the side of arrow B mark in Figure 5 and take off slidably from scalpel parts 12 subsequently.Illustrated in Fig. 6 that further continuation is slided mobile, this there is shown cutting part 11 and is separated with anatomic components 12 completely.When cutting part 11 engages completely with scalpel parts 12, the end section 26 being in microscler convex form has the contrary line of rabbet joint 27 and 28, and these lines of rabbet joint engage with the corresponding edge 29 and 30 of the middle line of rabbet joint 31 of cutting part 11 separately.Cutting part 11 also has the larger line of rabbet joint 32, and this larger line of rabbet joint prevents microscler protruding 26 to be separated from the line of rabbet joint 31.Additionally provide a less external end line of rabbet joint 33, it is used as a stop part and prevents protruding 26 away from any undesirable movement of the line of rabbet joint 31.

To recognize from foregoing teachings, it is easily realize that being re-engaged of cutting part 11 and scalpel parts 12 carries out being re-engaged by the line of rabbet joint 27 and 28 and neighboring edge 29 and 30 as shown by arrow C, wherein at this moment end section 20 is also by against the flat part 34 of correspondence or dimple, and this flat part or dimple compare the thickness with minimizing with end section 26 with shank portion 21.In this position, end section 20 will also contact with the engagement edge 24 of flat part 34.

Fig. 8-13 describes the using method of embedding toenail cutter 10, and first step has been shown in Fig. 8-9, and wherein the outside 16 of the part 14 of angulation is pressed on the soft meat 40 near embedding toenail 41, and this embedding toenail and the toenail 42 be positioned on toe 43 adjoin.

Illustrate in Figure 10-11 and engaged with embedding toenail 41 by small embossment 17 and be hooked on or be placed on the part 14 of this angulation under embedding toenail 41, cutting edge 15 is located or is supported on the position of hope, as shown in Figure 11.Conveniently eliminate soft meat 42 in fig. 11.

Figure 12 illustrates and cutting edge 15 is moved by sawing effect as shown in double-headed arrow D, but also cutter 10 is retracted as shown by arrow E partly to remove embedding toenail 41.Figure 13 illustrates the nail 41 processed, wherein embedding toenail 41 is completely removed.

Another kind of the present invention embedding toenail cutter 10A is shown in Figure 14-15, has which used the handle 50 being integral type with cutting part or bar 51 or being attached to releasedly on it.

Bar 51 is become by the clavate with circular section, and having with bar 51 is the bending part of of integral type or end 52.Additionally provide be positioned at bending end 52 inner side 14A on a web 53, bar 51 and the terminal protuberance 56 being in hemispherical plateau form interconnect by this web, as shown in Figure 15.Additionally provide the multiple cavity on the opposition side being positioned at bending end 52 or depression 55.The object of these contrary cavitys 55 is the overall widths in order to reduce the end 52 bent, and this contributes to embedding toenail cutter 10A and uses in the mode being similar to the cutter of toenail shown in Fig. 8-13 10.Also show outside 16A.Web 53 also has cutting edge 54, and this cutting edge aligns with 30 °-35 ° angle [alpha] relative to the longitudinal axis 49 of bar 51.

Also will recognize, left hand form with the cutter 10 of right handed or 10A be provided for the left-hand side of no matter toenail 43 or right-hand side need to remove embedding toenail 41 time.

This is illustrated at Figure 16-17, wherein Figure 16 illustrates a cutting part 11A, wherein cutting edge 15 extends with an angle [alpha] relative to the longitudinal axis 9 of the bar 19 of cutting part 11A, and wherein the part 14 of angulation extends to the right side of longitudinal axis 9, and in cutting part 11B, the parts 14 of angulation extend with the left side of angle [alpha] to longitudinal axis 9 relative to longitudinal axis 9.In either case, angle [alpha] can be any value between 30 ° or 35 ° or these angles.Right-hand type parts 11A may be used for the left hand corner cutting user's toenail, and left-hand type parts 11B is then suitable for the left hand corner cutting user's toenail.

To recognize from foregoing teachings, embedding toenail cutter of the present invention has extremely simple structure and uses very efficient.Use conventional scalpel handle to be also extremely beneficial and avoid the manufacture of integral type handle.It is very simple equally that embedding toenail cutter of the present invention uses in practice, as as shown in Fig. 8-13, wherein outside 16 to be pressed on the soft meat 40 near embedding toenail 41 to allow by protuberance 17, cutting edge 15 to be inserted under embedding toenail 41 and to prize in desired position to cut embedding toenail 41, thus allow cutting edge 15 to be inserted in safely under embedding toenail 41 and to be positioned in appropriate location as shown in Figure 11, to make cutting edge 15 to be pulled to and fro or with sawing or reciprocating manner, for the embedding toenail 41 of cutting, as shown in Figures 12-13.

To recognize further from the above, the feature of protuberance 17 is important, because it makes the use extremely safe of embedding toenail cutter of the present invention, because if use embedding toenail cutter 10 or 10A in the above described manner, protuberance 17 or boss 56 will guarantee that cutting edge 15 can not cut or remove tissue.This also means that embedding toenail cutter 10 can be used by any member of the public or unskilled personnel, and does not need podiatrist.This is realized by protuberance 17 or boss 56, thus guarantees that cutting edge 15 to be inserted into safely under embedding toenail 41 and to be arranged in desired location as described above.

It is emphasized that embedding toenail cutter of the present invention should be dipped in a kind of warm water solution before the use, this warm water solution optionally can contain wetting agent and/or disinfectant.

Claims

1. an embedding toenail cutter, comprise a handle or bar, this handle or bar have the part of the bending part of of extending away from this handle or bar or angulation at one end, and the part of described bending part or angulation has a cutting edge within it, and this cutting edge part contiguous provides a terminal fulcrum on the free end of the part of this bending part or angulation is inside this, wherein this cutting edge is relative to the longitudinal axis of this handle or bar with the angle orientation of 15 °-60 °.

2. embedding toenail cutter as claimed in claim 1, wherein, this angle is between 25 °-40 °.

3. embedding toenail cutter as claimed in claim 2, wherein, this angle is between 30 °-35 °.

4. the embedding toenail cutter as described in claim 1,2 or 3, wherein, the cutting part providing the part with described handle or bar and an angulation and the scalpel parts be attached to releasedly on this handle or bar.

5. embedding toenail cutter as claimed in claim 4, wherein, this handle or bar comprise a maintenance line of rabbet joint, this retention grooves sewer has a pair contrary edge, and these scalpel parts comprise a microscler end-boss, this microscler end-boss has a pair contrary line of rabbet joint, and wherein each line of rabbet joint engages releasedly with a neighboring edge.

6. embedding toenail cutter as claimed in claim 4, wherein, this handle or bar are formed by a long shaped plate.

7. embedding toenail cutter as claimed in claim 5, wherein, this handle or bar have an end section, this end section engages with a corresponding part of these scalpel parts, and this corresponding part is adjacent to that this microscler end-boss is located and Comparatively speaking has the thickness of reduction with this microscler end-boss.

8. embedding toenail cutter as claimed in claim 5, wherein, this handle or bar have and are adjacent to this maintenance line of rabbet joint and away from the larger line of rabbet joint of of part of this angulation, the end-boss that this larger line of rabbet joint prevents this microscler is disengaged with this maintenance line of rabbet joint.

9. embedding toenail cutter as claimed in claim 1 or 2, this embedding toenail cutter comprises a cutting part and a shank part, and wherein this shank part and this cutting part are one.

10. embedding toenail cutter as claimed in claim 9, wherein, this bending part is the handle of this cutting part or an extension of bar and has the web be positioned on inner side, this web extends between this terminal fulcrum and adjacent end of this handle or bar, wherein said web has a free edge, and this free edge defines described cutting edge.

The method of 11. 1 kinds of use embedding toenail cutters as claimed in claim 1, the method comprises the following steps:

12. 1 kinds of embedding toenail cutters, the cutting part that can be attached to releasedly on handle, this cutting part has a bar and an angulation extending away from this bar or bending part, and described part that is bending or angulation has the cutting edge be positioned on inside it, and be adjacent to this cutting edge part at the free end of this part that is bending or angulation and provide a terminal fulcrum, wherein this cutting edge is relative to the longitudinal axis of this bar with the angle orientation of 15 °-60 °.