JP2016007468A - Skin resection implement - Google Patents
Skin resection implement Download PDFInfo
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- JP2016007468A JP2016007468A JP2014131107A JP2014131107A JP2016007468A JP 2016007468 A JP2016007468 A JP 2016007468A JP 2014131107 A JP2014131107 A JP 2014131107A JP 2014131107 A JP2014131107 A JP 2014131107A JP 2016007468 A JP2016007468 A JP 2016007468A
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- 238000002271 resection Methods 0.000 title claims abstract description 29
- 238000001125 extrusion Methods 0.000 claims abstract description 66
- 230000004308 accommodation Effects 0.000 claims description 39
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 description 6
- 210000001217 buttock Anatomy 0.000 description 3
- 210000004905 finger nail Anatomy 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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Abstract
Description
本発明は、医療用等の皮膚切除具に関するものである。 The present invention relates to a skin resection tool for medical use and the like.
従来の皮膚切除具においては、例えば下記の特許文献１や特許文献２に開示されているように、円環状の刃先縁を有する切除刃がホルダの頭端部に固着されてその頭端部から突出しているとともに、押出端部を有する押出体が可動体の頭部に取着され、この可動体がホルダに対し移動可能に支持されている。この可動体の押出体は、押出端部が切除刃の円環状刃先縁から外側へ突出する突出位置と、切除刃の円環状刃先縁から内側へ収容される収容位置とを取る。押出体を収容位置にした状態で切除刃の円環状刃先縁を皮膚に当てがって回動させたり押し付けたりすると、円環状刃先縁により円形状に切断された皮膚片が円環状刃先縁の内側に残る。その後、押出体を突出位置にすると、円環状刃先縁の内側に残った皮膚片が押出体の押出端部により円環状刃先縁から外側へ押し出されて排出されるため、その皮膚片を採取することができる。 In the conventional skin resection tool, for example, as disclosed in Patent Document 1 and Patent Document 2 below, a resecting blade having an annular blade edge is fixed to the head end portion of the holder, and from the head end portion. An extruded body that protrudes and has an extrusion end is attached to the head of the movable body, and the movable body is supported so as to be movable with respect to the holder. The extrudate of the movable body takes a projecting position where the pushing end protrudes outward from the annular cutting edge of the cutting blade and an accommodation position where the pushing end is accommodated inward from the circular cutting edge of the cutting blade. If the circular cutting edge of the cutting blade is applied to the skin and rotated or pressed while the extrudate is in the stowed position, the skin piece cut into a circular shape by the circular cutting edge will be removed from the circular cutting edge. Remains inside. After that, when the extruded body is set to the protruding position, the skin piece remaining inside the annular blade edge is pushed out from the annular blade edge by the extruded end of the extruded body and discharged, so the skin piece is collected. be able to.
しかし、このような皮膚切除具では、切除刃がホルダの頭端部に固着されてその頭端部から突出して切除刃の円環状刃先縁が常に露出しているため、その刃先縁を損傷するおそれがあり、円環状刃先縁の損傷を防止するためには円環状刃先縁にキャップを被せる必要があった。 However, in such a skin resecting tool, the cutting blade is fixed to the head end of the holder and protrudes from the head end so that the annular cutting edge of the cutting blade is always exposed, so that the cutting edge is damaged. In order to prevent damage to the annular cutting edge, it was necessary to put a cap on the annular cutting edge.
この発明は、皮膚切除具において、キャップを不要とする構造を採用した場合にも、環状刃先縁の損傷を防止することを目的としている。 The object of the present invention is to prevent damage to the annular cutting edge even when a structure that eliminates the need for a cap is employed in the skin resection tool.
後記実施形態（図１〜７及び図８（ａ）に示す第一実施形態、図８（ｂ）に示す別例１、図９（ａ）に示す別例２、図９（ｂ）に示す別例３、図９（ｃ）に示す別例４、図９（ｄ）に示す別例５、図１０（ａ）に示す別例６、図１０（ｂ）に示す別例７）の図面の符号を援用して本発明を説明する。 The following embodiment (first embodiment shown in FIGS. 1 to 7 and FIG. 8A), alternative example 1 shown in FIG. 8B, alternative example 2 shown in FIG. 9A, and FIG. 9B Drawings of another example 3, another example 4 shown in FIG. 9 (c), another example 5 shown in FIG. 9 (d), another example 6 shown in FIG. 10 (a), and another example 7 shown in FIG. 10 (b) The present invention will be described with reference to the following symbols.
請求項１〜３の発明にかかる皮膚切除具においては、いずれも、環状の刃先縁（１７ａ）を有する切除刃（１７）を設けた可動体（１６）と、可動体（１６）の切除刃（１７）内を通る押出端部（３１）を有する押出体（２９）を設けたホルダ（１）とを備え、この可動体（１６）をホルダ（１）に対し移動可能に支持して、可動体（１６）の切除刃（１７）は、その刃先縁（１７ａ）がホルダ（１）の頭端部（３）から内側へ収容される収容位置（Ａ）と、その刃先縁（１７ａ）がホルダ（１）の頭端部（３）から外側へ突出する突出位置（Ｂ）とを取る。 In each of the skin resection tools according to the first to third aspects, the movable body (16) provided with a resection blade (17) having an annular blade edge (17a), and the resection blade of the movable body (16) (17) a holder (1) provided with an extruded body (29) having an extrusion end (31) passing through the inside, and supporting the movable body (16) movably with respect to the holder (1), The cutting blade (17) of the movable body (16) has an accommodation position (A) in which the blade edge (17a) is housed inward from the head end (3) of the holder (1) and its blade edge (17a). Takes a protruding position (B) protruding outward from the head end (3) of the holder (1).
さらに、請求項１の発明では、押出体（２９）の押出端部（３１）がホルダ（１）の頭端部（３）に一致する状態で、突出位置（Ｂ）にある切除刃（１７）の刃先縁（１７ａ）が押出体（２９）の押出端部（３１）から切除刃（１７）の突出向き（ＸＢ）へ離間し、収容位置（Ａ）にある切除刃（１７）の刃先縁（１７ａ）が押出体（２９）の押出端部（３１）から切除刃（１７）の収容向き（ＸＡ）へ離間するか、または、その押出端部（３１）に一致する。 Furthermore, in the invention of claim 1, the cutting blade (17) in the protruding position (B) in a state where the extruded end (31) of the extruded body (29) coincides with the head end (3) of the holder (1). The cutting edge (17a) of the cutting blade (17) is separated from the extrusion end (31) of the extrudate (29) in the protruding direction (XB) of the cutting blade (17), and the cutting edge (17) is in the receiving position (A). The edge (17a) is separated from the extrusion end (31) of the extruded body (29) in the accommodating direction (XA) of the cutting blade (17) or coincides with the extrusion end (31).
さらに、請求項２の発明では、押出体（２９）の押出端部（３１）がホルダ（１）の頭端部（３）から切除刃（１７）の収容向き（ＸＡ）へ離間する状態で、突出位置（Ｂ）にある切除刃（１７）の刃先縁（１７ａ）が押出体（２９）の押出端部（３１）から切除刃（１７）の突出向き（ＸＢ）へ離間し、収容位置（Ａ）にある切除刃（１７）の刃先縁（１７ａ）が押出体（２９）の押出端部（３１）から切除刃（１７）の収容向き（ＸＡ）へ離間するか、または、その押出端部（３１）に一致するか、または、押出体（２９）の押出端部（３１）から切除刃（１７）の突出向き（ＸＢ）へ離間する。 Furthermore, in invention of Claim 2, in the state which the extrusion end part (31) of the extrusion body (29) spaces apart from the head end part (3) of the holder (1) to the accommodation direction (XA) of the cutting blade (17). The cutting edge (17a) of the cutting blade (17) in the protruding position (B) is separated from the extrusion end (31) of the extruded body (29) in the protruding direction (XB) of the cutting blade (17), and is in the storage position. The cutting edge (17a) of the cutting blade (17) in (A) is separated from the extrusion end (31) of the extruded body (29) in the accommodating direction (XA) of the cutting blade (17), or the extrusion thereof It coincides with the end portion (31) or is separated from the extrusion end portion (31) of the extruded body (29) in the protruding direction (XB) of the cutting blade (17).
さらに、請求項３の発明では、押出体（２９）の押出端部（３１）がホルダ（１）の頭端部（３）から切除刃（１７）の突出向き（ＸＢ）へ離間する状態で、突出位置（Ｂ）にある切除刃（１７）の刃先縁（１７ａ）が押出体（２９）の押出端部（３１）から切除刃（１７）の突出向き（ＸＢ）へ離間し、収容位置（Ａ）にある切除刃（１７）の刃先縁（１７ａ）が押出体（２９）の押出端部（３１）から切除刃（１７）の収容向き（ＸＡ）へ離間する。 Furthermore, in invention of Claim 3, in the state which the extrusion end part (31) of the extrusion body (29) is spaced apart from the head end part (3) of the holder (1) in the protrusion direction (XB) of the cutting blade (17). The cutting edge (17a) of the cutting blade (17) in the protruding position (B) is separated from the extrusion end (31) of the extruded body (29) in the protruding direction (XB) of the cutting blade (17), and is in the storage position. The cutting edge (17a) of the cutting blade (17) in (A) is separated from the extrusion end (31) of the extruded body (29) in the accommodating direction (XA) of the cutting blade (17).
請求項４の発明にかかる皮膚切除具においては、環状の刃先縁（１７ａ）を有する切除刃（１７）をホルダ（１）に対し移動可能に支持し、ホルダ（１）には切除刃（１７）内を通る押出端部（３１）を有する押出体（２９）を設け、切除刃（１７）の刃先縁（１７ａ）はホルダ（１）の頭端部（３）から内側へ収容される収容位置（Ａ）と、ホルダ（１）の頭端部（３）から外側へ突出する突出位置（Ｂ）とを取り、切除刃（１７）の刃先縁（１７ａ）がその突出位置（Ｂ）で押出体（２９）の押出端部（３１）から切除刃（１７）の突出向き（ＸＢ）へ離間し、切除刃（１７）の刃先縁（１７ａ）がその収容位置（Ａ）で押出体（２９）の押出端部（３１）から切除刃（１７）の収容向き（ＸＡ）へ離間する。 In the skin resection tool according to the invention of claim 4, the resecting blade (17) having an annular blade edge (17a) is movably supported with respect to the holder (1), and the resecting blade (17) is supported on the holder (1). ) An extrusion body (29) having an extrusion end portion (31) passing through the inside is provided, and the cutting edge (17a) of the cutting blade (17) is accommodated inward from the head end portion (3) of the holder (1). The position (A) and the protruding position (B) protruding outward from the head end (3) of the holder (1) are taken, and the cutting edge (17a) of the cutting blade (17) is at the protruding position (B). The extruding body (29) is separated from the extruding end (31) in the projecting direction (XB) of the cutting blade (17), and the cutting edge (17a) of the cutting blade (17) is pushed into the extruded body (A) at the accommodation position (A). 29) is separated from the pushing end (31) in the accommodating direction (XA) of the cutting blade (17).
請求項１〜４の発明では、切除刃（１７）の環状刃先縁（１７ａ）を突出位置（Ｂ）にした状態でその環状刃先縁（１７ａ）を皮膚に当てがって回動させたり押し付けたりすると、環状刃先縁（１７ａ）により切断された皮膚片が環状刃先縁（１７ａ）の内側に残る。その後、環状刃先縁（１７ａ）を収容位置（Ａ）にすると、環状刃先縁（１７ａ）の内側に残った皮膚片が押出体（２９）の押出端部（３１）により環状刃先縁（１７ａ）から外側へ押し出されて排出される。通常は切除刃（１７）の環状刃先縁（１７ａ）をホルダ（１）の頭端部（３）から内側へ収容することができ、皮膚片の切断時には切除刃（１７）の環状刃先縁（１７ａ）をホルダ（１）の頭端部（３）から外側へ突出させることができるので、環状刃先縁（１７ａ）の損傷を防止することができる。 In the invention according to claims 1 to 4, the annular blade edge (17a) is applied to the skin and rotated or pressed in a state where the annular blade edge (17a) of the cutting blade (17) is in the protruding position (B). If it does, the skin piece cut | disconnected by the annular blade edge (17a) will remain inside the annular blade edge (17a). Thereafter, when the annular blade edge (17a) is moved to the housing position (A), the skin piece remaining on the inner side of the annular blade edge (17a) is removed by the extrusion end (31) of the extruded body (29). It is pushed out to the outside and discharged. Usually, the annular cutting edge (17a) of the cutting blade (17) can be accommodated inward from the head end (3) of the holder (1), and the cutting blade (17) has an annular cutting edge ( Since 17a) can be protruded outward from the head end (3) of the holder (1), damage to the annular cutting edge (17a) can be prevented.
請求項１〜３のうちいずれか一つの請求項の発明を前提とする請求項５の発明において、前記押出体（２９）の押出端部（３１）の外周縁（３１ａ）は切除刃（１７）の環状刃先縁（１７ａ）に沿って環状に設けられている。請求項５の発明では、切除刃（１７）の環状刃先縁（１７ａ）に押出体（２９）の押出端部（３１）の外周縁（３１ａ）が沿うため、環状刃先縁（１７ａ）に沿って切断された皮膚片を押出端部（３１）により円滑に排出することができる。 The invention according to claim 5, which is based on the invention of any one of claims 1 to 3, wherein the outer peripheral edge (31a) of the extrusion end (31) of the extruded body (29) is a cutting blade (17). ) In an annular shape along the annular cutting edge (17a). In the invention of claim 5, since the outer peripheral edge (31a) of the extrusion end portion (31) of the extruded body (29) is along the annular cutting edge (17a) of the cutting blade (17), the cutting edge (17a) is along the annular cutting edge (17a). The cut skin piece can be smoothly discharged by the extruded end (31).
請求項１〜３，５のうちいずれか一つの請求項の発明を前提とする請求項６の発明においては、前記押出体（２９）を可動体（１６）に支持した状態で可動体（１６）をホルダ（１）の端部（３）から挿入した際に押出体（２９）が係止される連結部（１４）をホルダ（１）に設け、ホルダ（１）に対する可動体（１６）の移動に伴い押出体（２９）がホルダ（１）の連結部（１４）に連結されて、ホルダ（１）に残った押出体（２９）に対し可動体（１６）が移動し得る。請求項６の発明では、ホルダ（１）への可動体（１６）の挿入操作を利用して押出体（２９）をホルダ（１）の連結部（１４）に対し容易に連結することができる。 In the invention of claim 6 premised on the invention of any one of claims 1 to 3 and 5, the movable body (16) is supported in a state where the extruded body (29) is supported by the movable body (16). ) Is provided from the end (3) of the holder (1), the connecting portion (14) to which the extruded body (29) is locked is provided in the holder (1), and the movable body (16) with respect to the holder (1). The movable body (16) can move with respect to the extruded body (29) remaining in the holder (1) by connecting the extruded body (29) to the connecting portion (14) of the holder (1). In invention of Claim 6, an extrusion body (29) can be easily connected with respect to the connection part (14) of a holder (1) using insertion operation of the movable body (16) to a holder (1). .
請求項６の発明を前提とする請求項７の発明において、前記可動体（１６）の切除刃（１７）の刃先縁（１７ａ）は、ホルダ（１）の連結部（１４）より切除刃（１７）の突出向き（ＸＢ）側に位置した状態で、ホルダ（１）に対する可動体（１６）の移動に伴い移動する。請求項７の発明では、切除刃（１７）をホルダ（１）の端部（３）から内側へ収容する際にホルダ（１）の連結部（１４）に邪魔されることがない。 In the invention of claim 7 premised on the invention of claim 6, the cutting edge (17a) of the cutting blade (17) of the movable body (16) is cut from the connecting portion (14) of the holder (1) ( It moves with the movement of the movable body (16) relative to the holder (1) in a state of being positioned on the protruding direction (XB) side of 17). In the invention of claim 7, when the cutting blade (17) is housed inward from the end (3) of the holder (1), it is not obstructed by the connecting portion (14) of the holder (1).
請求項１〜３，５〜７のうちいずれか一つの請求項の発明を前提とする請求項８の発明において、前記可動体（１６）は、その可動体（１６）と押出体（２９）との間に支持された収容ばね（２３）により、切除刃（１７）の突出位置（Ｂ）側から切除刃（１７）の収容位置（Ａ）側へ付勢される。請求項８の発明では、収容ばね（２３）により、可動体（１６）を容易に収容するとともに、可動体（１６）の不用意な突出を規制することができる。 The invention according to claim 8, which is based on the invention of any one of claims 1 to 3 and 5 to 7, wherein the movable body (16) includes the movable body (16) and an extruded body (29). Are accommodated between the projecting position (B) of the cutting blade (17) and the housing position (A) of the cutting blade (17). In the invention of claim 8, the movable body (16) can be easily accommodated by the accommodation spring (23), and inadvertent protrusion of the movable body (16) can be restricted.
次に、請求項以外の技術的思想について実施形態の図面の符号を援用して説明する。
請求項１〜３，５〜８のうちいずれか一つの請求項の発明を前提とする第９の発明においては、前記ホルダ（１）に設けたガイド（６）と可動体（１６）に設けたストッパ（２５）との係脱により、ホルダ（１）に対する可動体（１６）の移動位置（Ａ，Ｂ，Ｃ）を設定する。第９の発明では、ホルダ（１）に対し可動体（１６）を移動させる際に、ガイド（６）に対するストッパ（２５）の係脱により可動体（１６）の移動位置（Ａ，Ｂ，Ｃ）を設定することができる。
Next, technical ideas other than the claims will be described with reference to the reference numerals in the drawings of the embodiments.
In a ninth invention based on the invention of any one of claims 1 to 3 and 5 to 8, a guide (6) provided on the holder (1) and a movable body (16) are provided. The moving position (A, B, C) of the movable body (16) with respect to the holder (1) is set by engagement / disengagement with the stopper (25). In the ninth invention, when the movable body (16) is moved relative to the holder (1), the moving position (A, B, C) of the movable body (16) is obtained by engaging / disengaging the stopper (25) with respect to the guide (6). ) Can be set.
第９の発明を前提とする第１０の発明において、前記ホルダ（１）は、前記可動体（１６）の切除刃（１７）が出没する頭端部（３）と、その頭端部（３）に対し可動体（１６）の移動方向（Ｘ）で反対側になる尻端部（４）とを有し、前記ホルダ（１）のガイド（６）はこの頭端部（３）と尻端部（４）との間に設けられ、前記可動体（１６）において、切除刃（１７）を有する頭部（１８）に対し可動体（１６）の移動方向（Ｘ）で反対側になる尻側には操作部（２２）をホルダ（１）の尻端部（４）から露出させて設け、ストッパ（２５）を切除刃（１７）と操作部（２２）との間に設けた。第１０の発明では、ホルダ（１）の尻端部（４）から露出させた可動体（１６）の操作部（２２）により、ホルダ（１）に対する可動体（１６）の移動位置（Ａ，Ｂ，Ｃ）を設定する操作を容易に行うことができる。 In the tenth invention based on the ninth invention, the holder (1) includes a head end portion (3) where the cutting blade (17) of the movable body (16) protrudes and protrudes, and a head end portion (3 ) And a butt end (4) on the opposite side in the moving direction (X) of the movable body (16), and the guide (6) of the holder (1) is connected to the head end (3) and the butt end. The movable body (16) is provided on the opposite side in the moving direction (X) of the movable body (16) with respect to the head (18) having the cutting blade (17). On the buttocks side, the operation part (22) was provided so as to be exposed from the buttocks end part (4) of the holder (1), and a stopper (25) was provided between the cutting blade (17) and the operation part (22). In the tenth invention, the movable body (16) is moved relative to the holder (1) by the operation part (22) of the movable body (16) exposed from the bottom end (4) of the holder (1). The operation of setting B, C) can be easily performed.
第９の発明または第１０の発明を前提とする第１１の発明において、前記可動体（１６）のストッパ（２５）は、板ばね（１９）により付勢され、前記ホルダ（１）のガイド（６）に対し板ばね（１９）による付勢力により係止されるとともにその付勢力に抗してその係止が解除される。第１１の発明では、ホルダ（１）のガイド（６）に対し可動体（１６）のストッパ（２５）を板ばね（１９）の付勢力により容易に係止させることができるとともに、板ばね（１９）の付勢力に抗してその係止を容易に解除することができる。 In the eleventh invention premised on the ninth invention or the tenth invention, the stopper (25) of the movable body (16) is urged by a leaf spring (19) to guide the holder (1) ( 6) is locked by the urging force of the leaf spring (19) and is released against the urging force. In the eleventh aspect of the invention, the stopper (25) of the movable body (16) can be easily locked to the guide (6) of the holder (1) by the urging force of the leaf spring (19), and the leaf spring ( The locking can be easily released against the urging force of 19).
第１１の発明を前提とする第１２の発明において、前記板ばね（１９）は可動体（１６）の移動方向（Ｘ）に沿って延設されて切除刃（１７）の収容向き（ＸＡ）側に自由端部を有する片持ち梁であり、前記可動体（１６）のストッパ（２５）はこの板ばね（１９）に設けられている。第１２の発明では、ストッパ（２５）を設けた板ばね（１９）を簡単に形成することができる。 In a twelfth aspect based on the eleventh aspect, the leaf spring (19) extends along the moving direction (X) of the movable body (16) and accommodates the cutting blade (17) in the accommodating direction (XA). It is a cantilever having a free end on the side, and the stopper (25) of the movable body (16) is provided on the leaf spring (19). In the twelfth invention, the leaf spring (19) provided with the stopper (25) can be easily formed.
第９〜１２の発明のうちいずれか一つの発明を前提とする第１３の発明において、前記可動体（１６）の切除刃（１７）は、前記収容位置（Ａ）及び突出位置（Ｂ）ばかりではなく、その収容位置（Ａ）及び突出位置（Ｂ）への移動を阻止するロック位置（Ｃ）も取り得る。第１３の発明では、可動体（１６）の切除刃（１７）をロック位置（Ｃ）に移動させると、使用後のものか否かを容易に判別することができるとともに、切除刃（１７）が収容位置（Ａ）や突出位置（Ｂ）に不用意に移動するのを阻止することができる。 In a thirteenth invention based on any one of the ninth to twelfth inventions, the cutting blade (17) of the movable body (16) has only the housing position (A) and the protruding position (B). Instead, a lock position (C) that prevents movement to the storage position (A) and the protruding position (B) can be taken. In the thirteenth invention, when the cutting blade (17) of the movable body (16) is moved to the lock position (C), it can be easily determined whether or not the cutting blade is used, and the cutting blade (17). Can be prevented from inadvertently moving to the storage position (A) or the protruding position (B).
第１３の発明を前提とする第１４の発明において、前記可動体（１６）のストッパ（２５）は、片持ち梁状の板ばね（１９）の自由端部側に設けられた第一係止部（２６）と、その第一係止部（２６）より切除刃（１７）の突出向き（ＸＢ）側に設けられた第二係止部（２７）とを有している。第１４の発明では、ストッパ（２５）の第一係止部（２６）及び第二係止部（２７）をガイド（６）に係止される収容用係止部と突出用係止部とロック用係止部として兼用して、ストッパ（２５）を簡単にすることができる。また、片持ち梁状の板ばね（１９）の基端部に対する第一係止部（２６）の距離は、その基端部に対する第二係止部（２７）の距離より大きくなるので、第一係止部（２６）の位置における板ばね（１９）の撓み量が第二係止部（２７）の位置における板ばね（１９）の撓み量より大きくなり、第二係止部（２７）を操作するだけで第一係止部（２６）を操作することができる。 In a fourteenth aspect based on the thirteenth aspect, the stopper (25) of the movable body (16) is a first latch provided on the free end side of the cantilever-like plate spring (19). Part (26), and the 2nd latching | locking part (27) provided in the protrusion direction (XB) side of the cutting blade (17) from the 1st latching | locking part (26). In the fourteenth aspect of the present invention, an accommodating locking portion and a protruding locking portion for locking the first locking portion (26) and the second locking portion (27) of the stopper (25) to the guide (6) The stopper (25) can be simplified by also serving as a locking engagement portion. Moreover, since the distance of the 1st latching | locking part (26) with respect to the base end part of a cantilever-like leaf | plate spring (19) becomes larger than the distance of the 2nd latching | locking part (27) with respect to the base end part, The amount of bending of the leaf spring (19) at the position of the one locking portion (26) becomes larger than the amount of bending of the leaf spring (19) at the position of the second locking portion (27), and the second locking portion (27). The first locking portion (26) can be operated simply by operating.
第１４の発明を前提とする第１５の発明において、前記ホルダ（１）のガイド（６）は、切除刃（１７）の収容位置（Ａ）で前記ストッパ（２５）の第一係止部（２６）が係止される第一係止部（７）と、切除刃（１７）の収容位置（Ａ）で前記ストッパ（２５）の第二係止部（２７）が係止されるとともに切除刃（１７）の突出位置（Ｂ）で前記ストッパ（２５）の第一係止部（２６）が係止される第二係止部（８）と、切除刃（１７）の突出位置（Ｂ）で前記ストッパ（２５）の第二係止部（２７）が係止される第三係止部（９）と、切除刃（１７）のロック位置（Ｃ）で前記ストッパ（２５）の第一係止部（２６）が係止される第四係止部（１０）と、切除刃（１７）のロック位置（Ｃ）で前記ストッパ（２５）の第二係止部（２７）が係止される第五係止部（１１）とを有し、このガイド（６）の第四係止部（１０）と第一係止部（７）と第五係止部（１１）と第二係止部（８）と第三係止部（９）とは可動体（１６）の移動方向（Ｘ）に沿って切除刃（１７）の突出向き（ＸＢ）側へ順次並べられている。第１５の発明では、ガイド（６）において可動体（１６）の移動方向（Ｘ）に沿って切除刃（１７）の突出向き（ＸＢ）側へ順次並べた第四係止部（１０）と第一係止部（７）と第五係止部（１１）と第二係止部（８）と第三係止部（９）とのうちいずれかのものに対し、ストッパ（２５）の第一係止部（２６）及び第二係止部（２７）を係止させることにより、ガイド（６）の各係止部（７，８，９，１０，１１）をストッパ（２５）に係止される収容用係止部（７，８）と突出用係止部（８，９）とロック用係止部（１０，１１）として兼用して、ガイド（６）を簡単にすることができる。 In a fifteenth aspect based on the fourteenth aspect, the guide (6) of the holder (1) is moved to a first locking portion (a) of the stopper (25) at the housing position (A) of the cutting blade (17). 26) and the second locking portion (27) of the stopper (25) are locked and cut at the receiving position (A) of the cutting blade (17). A second locking portion (8) where the first locking portion (26) of the stopper (25) is locked at the protruding position (B) of the blade (17), and a protruding position (B of the cutting blade (17)) ) And the third locking portion (9) where the second locking portion (27) of the stopper (25) is locked, and the locking position (C) of the cutting blade (17) A fourth locking portion (10) to which one locking portion (26) is locked, and a second locking portion (27) of the stopper (25) at the locking position (C) of the cutting blade (17). A fifth locking portion (11) to be locked, and a fourth locking portion (10), a first locking portion (7), and a fifth locking portion (11) of the guide (6). The second locking portion (8) and the third locking portion (9) are sequentially arranged along the moving direction (X) of the movable body (16) toward the protruding direction (XB) of the cutting blade (17). Yes. In the fifteenth aspect, the fourth locking portion (10) sequentially arranged in the guide (6) along the movement direction (X) of the movable body (16) toward the protruding direction (XB) of the cutting blade (17); The stopper (25) is attached to any one of the first locking part (7), the fifth locking part (11), the second locking part (8), and the third locking part (9). By locking the first locking portion (26) and the second locking portion (27), each locking portion (7, 8, 9, 10, 11) of the guide (6) is used as a stopper (25). The accommodation locking portion (7, 8) to be locked, the protruding locking portion (8, 9), and the locking locking portion (10, 11) are combined to simplify the guide (6). Can do.
本発明は、皮膚切除具において、キャップを不要とする構造を採用した場合にも、環状刃先縁（１７ａ）の損傷を防止することができる。 The present invention can prevent damage to the annular cutting edge (17a) even when a structure that does not require a cap is employed in the skin resection tool.
まず、本発明の第一実施形態について図１〜７及び図８（ａ）を参照して説明する。
図１及び図２，３に示すホルダ１においては、細長い筒壁２が頭端部３（前端部）とその反対側の尻端部４（後端部）との間で収容孔５により貫通されて前後方向Ｘへ延設され、筒壁２の後半部には前後方向Ｘに対し直交する上下方向Ｚの両側のうち上側でガイド６が形成されている。ガイド６は、前後方向Ｘ及び上下方向Ｚに対し直交する左右方向Ｙ（幅方向）で相対向する端縁部を有するとともに収容孔５に連通する第一係止孔７、第二係止孔８、第三係止孔９、第四係止孔１０及び第五係止孔１１を備え、尻端部４側から第四係止孔１０と第一係止孔７と第五係止孔１１と第二係止孔８と第三係止孔９とが順次頭端部３側へ向けて並べられている。第二係止孔８と第三係止孔９とは長孔１２により互いに連通されている。第四係止孔１０、第一係止孔７及び第二係止孔８における両端縁部間の幅方向寸法は、第五係止孔１１及び第三係止孔９における両端縁部間の幅方向寸法より大きく設けられている。第三係止孔９で幅方向Ｙの両側には壁１３が上方へ突設されている。筒壁２の上下両側には頭端部３と第三係止孔９との間の中間位置で連結孔１４が収容孔５に連通して形成されている。筒壁２の頭端部３で収容孔５には上下両側及び左右両側で案内溝１５が頭端部３から所定長さだけ前後方向Ｘへ延設されている。
First, a first embodiment of the present invention will be described with reference to FIGS. 1 to 7 and FIG.
In the holder 1 shown in FIGS. 1, 2, and 3, the elongated cylindrical wall 2 penetrates through the accommodation hole 5 between the head end portion 3 (front end portion) and the opposite end portion 4 (rear end portion). The guide 6 is formed on the upper side of both sides of the vertical direction Z perpendicular to the front-rear direction X in the rear half of the cylindrical wall 2. The guide 6 has a first locking hole 7 and a second locking hole that have edge portions facing each other in the left-right direction Y (width direction) orthogonal to the front-rear direction X and the vertical direction Z and communicate with the accommodation hole 5. 8, a third locking hole 9, a fourth locking hole 10, and a fifth locking hole 11, and the fourth locking hole 10, the first locking hole 7, and the fifth locking hole from the bottom end 4 side. 11, the second locking hole 8 and the third locking hole 9 are sequentially arranged toward the head end 3 side. The second locking hole 8 and the third locking hole 9 are communicated with each other by a long hole 12. The width direction dimension between the both end edges in the fourth locking hole 10, the first locking hole 7 and the second locking hole 8 is between the both end edges in the fifth locking hole 11 and the third locking hole 9. It is larger than the dimension in the width direction. Walls 13 project upward from both sides in the width direction Y of the third locking hole 9. A connecting hole 14 is formed on the upper and lower sides of the cylindrical wall 2 so as to communicate with the receiving hole 5 at an intermediate position between the head end portion 3 and the third locking hole 9. A guide groove 15 extends from the head end portion 3 in the front-rear direction X by a predetermined length in the receiving hole 5 at the head end portion 3 of the cylindrical wall 2 on both the upper and lower sides and the left and right sides.
図１及び図２，３に示す可動体１６は、前後方向Ｘに沿う中心を有する円環状の刃先縁１７ａを有する切除刃１７を前方へ突出させた頭部１８と、片持ち梁状の板ばね１９を有する支持部２０と、頭部１８の後端部と支持部２０の前端部とを互いに連結する半円筒状のばね支持部２１とを備えている。支持部２０の尻側には把持し易い形状に形成された操作部２２が後方へ延設されて、その操作部２２の後端部に膨出部２２ａが形成されている。ばね支持部２１内には収容ばね２３（圧縮コイルばね）が挿入される。支持部２０の上側には支持部２０の前端部と操作部２２との間で凹み２４が形成されている。片持ち梁状の板ばね１９は凹み２４内で支持部２０の前端部側から尻側の操作部２２へ向けて延設されている。板ばね１９の上側にはストッパ２５が形成されている。ストッパ２５は、板ばね１９の自由端部側で上方へ突設された第一係止部２６と、その第一係止部２６より基端部側で上方へ突設された第二係止部２７とを有している。第一係止部２６における幅方向寸法は第二係止部２７における幅方向寸法より大きく設けられている。第一係止部２６における前後方向Ｘの両側のうち、前側に形成された当接面２６ａと後側に形成された当接面２６ｂとは、共に、後方へ向かうに従い上方へ傾斜し、前後方向Ｘに対する当接面２６ａの傾斜度は当接面２６ｂの傾斜度より緩くなっている。第二係止部２７における前後方向Ｘの両側のうち、前側に形成された当接面２７ａは上下方向Ｚへ延びる鉛直面になっており、後側では前方へ向かうに従い上方へ傾斜する当接面２７ｂが形成されているとともに、当接面２７ｂに対し板ばね１９側で連続して上下方向Ｚへ延びる鉛直面をなす当接面２７ｃが形成されている。頭部１８の後端部の外周には上下両側及び左右両側で案内突起２８が形成されている。 A movable body 16 shown in FIGS. 1, 2, and 3 includes a head 18 in which a cutting blade 17 having an annular blade edge 17 a having a center along the front-rear direction X is projected forward, and a cantilever plate A support portion 20 having a spring 19 and a semi-cylindrical spring support portion 21 that connects the rear end portion of the head 18 and the front end portion of the support portion 20 to each other are provided. An operation portion 22 formed in a shape that is easy to grip is extended rearward on the bottom side of the support portion 20, and a bulging portion 22 a is formed at the rear end portion of the operation portion 22. A housing spring 23 (compression coil spring) is inserted into the spring support 21. A recess 24 is formed on the upper side of the support portion 20 between the front end portion of the support portion 20 and the operation portion 22. The cantilever-like plate spring 19 extends in the recess 24 from the front end side of the support portion 20 toward the operation portion 22 on the buttocks side. A stopper 25 is formed on the upper side of the leaf spring 19. The stopper 25 has a first locking part 26 projecting upward on the free end side of the leaf spring 19 and a second latching projecting upward on the base end side from the first locking part 26. Part 27. The width direction dimension of the first locking part 26 is larger than the width direction dimension of the second locking part 27. Of both sides of the first locking portion 26 in the front-rear direction X, the abutment surface 26a formed on the front side and the abutment surface 26b formed on the rear side both incline upward toward the rear, The inclination of the contact surface 26a with respect to the direction X is gentler than the inclination of the contact surface 26b. Of both sides of the second locking portion 27 in the front-rear direction X, the contact surface 27a formed on the front side is a vertical surface extending in the up-down direction Z, and on the rear side, the contact is inclined upward as it goes forward. A surface 27b is formed, and a contact surface 27c that forms a vertical surface extending in the vertical direction Z continuously with respect to the contact surface 27b on the leaf spring 19 side is formed. Guide protrusions 28 are formed on the outer periphery of the rear end of the head 18 on both the upper and lower sides and the left and right sides.
図１及び図２，３に示す押出体２９において、棒３０の前端部には円形状の外周縁３１ａを有する押出端部３１が形成され、棒３０の後端部に形成された受け部３２の上下両側には連結突起３３が形成されているとともに、受け部３２から後方へ腕部３４が延設されている。図１（ｂ）に示すように、押出体２９を棒３０側から可動体１６の頭部１８の切除刃１７内に挿入するとともに、可動体１６のばね支持部２１内に挿入した収容ばね２３にその腕部３４を挿入した状態で、可動体１６を操作部２２側からホルダ１の頭端部３内に挿入すると、押出体２９の連結突起３３（連結部）がホルダ１の連結孔１４（連結部）に係入される。そのため、押出体２９の押出端部３１がホルダ１の頭端部３に一致した位置で押出体２９がホルダ１に対し移動不能に固定され、収容ばね２３が押出体２９の受け部３２と可動体１６の支持部２０の前端部との間に介在されるとともに、可動体１６の操作部２２がホルダ１の尻端部４から後方へ露出して突出する。 In the extruded body 29 shown in FIGS. 1, 2, and 3, an extrusion end 31 having a circular outer peripheral edge 31 a is formed at the front end of the rod 30, and a receiving portion 32 formed at the rear end of the rod 30. Connection protrusions 33 are formed on both upper and lower sides, and an arm part 34 extends rearward from the receiving part 32. As shown in FIG. 1 (b), the pusher 29 is inserted into the cutting blade 17 of the head 18 of the movable body 16 from the rod 30 side, and the accommodation spring 23 is inserted into the spring support portion 21 of the movable body 16. When the movable body 16 is inserted into the head end portion 3 of the holder 1 from the operation portion 22 side with the arm portion 34 inserted, the connection protrusion 33 (connection portion) of the pusher 29 is connected to the connection hole 14 of the holder 1. (Linked part). Therefore, the extruded body 29 is fixed so as not to move with respect to the holder 1 at a position where the extruded end 31 of the extruded body 29 coincides with the head end 3 of the holder 1, and the accommodating spring 23 is movable with the receiving portion 32 of the extruded body 29. While being interposed between the front end portion of the support portion 20 of the body 16, the operation portion 22 of the movable body 16 is exposed and protrudes rearward from the bottom end portion 4 of the holder 1.
可動体１６を下記の往復操作手段（ストッパ２５の係止部２６，２７、ガイド６の係止孔７，８，９など）により図２〜３に示す収容位置Ａと図４〜５に示す突出位置Ｂとの間で移動させる場合について説明する。 The movable body 16 is shown in the accommodation position A shown in FIGS. 2 to 3 and FIGS. 4 to 5 by the following reciprocating operation means (the locking portions 26 and 27 of the stopper 25, the locking holes 7, 8, 9 and the like of the guide 6). The case where it moves between the protrusion positions B is demonstrated.
図２〜３に示す収容位置Ａでは、可動体１６の案内突起２８がホルダ１の案内溝１５により案内されながら可動体１６がホルダ１に対し収容ばね２３の付勢力により後方へ移動し、可動体１６の第一係止部２６がホルダ１の第一係止孔７に係入されるとともに、可動体１６の第二係止部２７がホルダ１の第二係止孔８に係入される。その第一係止孔７に対し第一係止部２６の当接面２６ｂが当接して第一係止孔７が収容ばね２３の付勢力を受けるとともに、その第二係止孔８に対し第二係止部２７が当接して第二係止孔８が収容ばね２３の付勢力を受け、可動体１６がホルダ１に対し静止する。切除刃１７の刃先縁１７ａはホルダ１の収容孔５に収容されて押出体２９の押出端部３１より後方へ離間する。 2 to 3, while the guide protrusion 28 of the movable body 16 is guided by the guide groove 15 of the holder 1, the movable body 16 moves backward with respect to the holder 1 by the biasing force of the storage spring 23. The first locking portion 26 of the body 16 is engaged with the first locking hole 7 of the holder 1, and the second locking portion 27 of the movable body 16 is engaged with the second locking hole 8 of the holder 1. The The first locking hole 7 is in contact with the contact surface 26 b of the first locking portion 26 so that the first locking hole 7 receives the biasing force of the accommodation spring 23, and the second locking hole 8 The second locking portion 27 comes into contact, the second locking hole 8 receives the biasing force of the accommodation spring 23, and the movable body 16 is stationary with respect to the holder 1. The cutting edge 17 a of the cutting blade 17 is accommodated in the accommodation hole 5 of the holder 1 and is separated rearward from the extrusion end portion 31 of the extruded body 29.
図２〜３に示す収容位置Ａで、可動体１６の操作部２２を収容ばね２３の付勢力に抗して前方へ押すと、可動体１６の案内突起２８がホルダ１の案内溝１５により案内されながら可動体１６がホルダ１に対し収容ばね２３の付勢力に抗して前方（突出向きＸＢ）へ移動し、図４〜５に示す突出位置Ｂとなる。操作部２２の膨出部２２ａに指を当てがうと、可動体１６を前方へ押し易い。その際、可動体１６の第一係止部２６の当接面２６ａがホルダ１の第一係止孔７に当接して片持ち梁状の板ばね１９が収容孔５側へ撓むため、その第一係止部２６はホルダ１の第一係止孔７から離脱され、第一係止部２６より幅方向寸法の小さいホルダ１の第五係止孔１１に係入されることなく、板ばね１９の復帰に伴いホルダ１の第二係止孔８に係入される。また、可動体１６の第二係止部２７は、ホルダ１の第二係止孔８から離脱されて長孔１２を移動し、板ばね１９の復帰に伴いホルダ１の第三係止孔９に係入される。その第二係止孔８に対し可動体１６の第一係止部２６の当接面２６ｂが当接して第二係止孔８が収容ばね２３の付勢力を受け、可動体１６がホルダ１に対し静止する。切除刃１７の刃先縁１７ａはホルダ１の収容孔５から突出して押出体２９の押出端部３１より前方へ離間する。 When the operation portion 22 of the movable body 16 is pushed forward against the urging force of the accommodation spring 23 at the accommodation position A shown in FIGS. 2 to 3, the guide protrusion 28 of the movable body 16 is guided by the guide groove 15 of the holder 1. The movable body 16 moves forward (protruding direction XB) against the urging force of the accommodation spring 23 against the holder 1 to become a protruding position B shown in FIGS. When a finger is placed on the bulging part 22a of the operation part 22, the movable body 16 can be easily pushed forward. At that time, the contact surface 26a of the first locking portion 26 of the movable body 16 contacts the first locking hole 7 of the holder 1 and the cantilever-like plate spring 19 bends toward the receiving hole 5 side. The first locking portion 26 is detached from the first locking hole 7 of the holder 1 and is not engaged with the fifth locking hole 11 of the holder 1 having a smaller width dimension than the first locking portion 26. With the return of the leaf spring 19, it is engaged with the second locking hole 8 of the holder 1. Further, the second locking portion 27 of the movable body 16 is detached from the second locking hole 8 of the holder 1 to move through the long hole 12, and the third locking hole 9 of the holder 1 is moved with the return of the leaf spring 19. Will be enrolled in. The contact surface 26b of the first locking portion 26 of the movable body 16 abuts against the second locking hole 8 so that the second locking hole 8 receives the urging force of the accommodation spring 23, and the movable body 16 moves to the holder 1. It stops against. The cutting edge 17 a of the cutting blade 17 protrudes from the accommodation hole 5 of the holder 1 and is separated forward from the extrusion end 31 of the extruded body 29.
図４〜５に示す突出位置Ｂで、ホルダ１の両壁１３間に入れた指爪などにより両壁１３間の第二係止部２７を収容孔５側へ押すと、片持ち梁状の板ばね１９が収容孔５側へ撓んで、可動体１６の第二係止部２７がホルダ１の第三係止孔９から離脱されるとともに、可動体１６の第一係止部２６がホルダ１の第二係止孔８から離脱され、可動体１６の案内突起２８がホルダ１の案内溝１５により案内されながら可動体１６がホルダ１に対し収容ばね２３の付勢力により後方（収容向きＸＡ）へ移動して、図２〜３に示す収容位置Ａに戻る。この場合、可動体１６において、片持ち梁状の板ばね１９の基端部に対する第一係止部２６の距離は、その基端部に対する第二係止部２７の距離より大きくなるので、第一係止部２６の位置における板ばね１９の撓み量が第二係止部２７の位置における板ばね１９の撓み量より大きくなり、第二係止部２７を第三係止孔９から離脱させれば、第一係止部２６を第二係止孔８から自ずと離脱させることができる。 When the second locking portion 27 between the walls 13 is pushed toward the accommodation hole 5 by a fingernail or the like inserted between the walls 13 of the holder 1 at the protruding position B shown in FIGS. The leaf spring 19 is bent toward the accommodation hole 5, the second locking portion 27 of the movable body 16 is detached from the third locking hole 9 of the holder 1, and the first locking portion 26 of the movable body 16 is the holder. 1, the movable body 16 is moved rearward (accommodating direction XA) by the biasing force of the accommodating spring 23 against the holder 1 while the guide protrusion 28 of the movable body 16 is guided by the guide groove 15 of the holder 1. ) To return to the storage position A shown in FIGS. In this case, in the movable body 16, the distance of the first locking portion 26 with respect to the base end portion of the cantilevered plate spring 19 is larger than the distance of the second locking portion 27 with respect to the base end portion. The bending amount of the leaf spring 19 at the position of the one locking portion 26 is larger than the bending amount of the leaf spring 19 at the position of the second locking portion 27, and the second locking portion 27 is detached from the third locking hole 9. Then, the first locking part 26 can be detached from the second locking hole 8 naturally.
可動体１６を下記のロック操作手段（ストッパ２５の係止部２６，２７、ガイド６の係止孔１０，１１など）により図２〜３に示す収容位置Ａから図６〜７に示すロック位置Ｃに移動させる場合について説明する。 The movable body 16 is moved from the storage position A shown in FIGS. 2 to 3 to the lock positions shown in FIGS. 6 to 7 by the following lock operation means (the locking portions 26 and 27 of the stopper 25, the locking holes 10 and 11 of the guide 6). A case of moving to C will be described.
図２〜３に示す収容位置Ａから図６〜７に示すロック位置Ｃにする場合には、まず、一方の手の指爪などにより可動体１６の第二係止部２７を収容孔５側へ押すと、片持ち梁状の板ばね１９が収容孔５側へ撓んで、可動体１６の第二係止部２７の当接面２７ｂがホルダ１の第二係止孔８に当接する。次に、一方の手の指爪などにより可動体１６の第二係止部２７を収容孔５側へ押したまま、他方の手で可動体１６の操作部２２を後方へ引くと、可動体１６の第二係止部２７の当接面２７ｂが第二係止孔８で押されて第二係止部２７がホルダ１の第二係止孔８から離脱される。操作部２２の膨出部２２ａに指を当てがうと、可動体１６を後方へ引き易い。この場合、可動体１６において、第一係止部２６の位置における板ばね１９の撓み量は、第二係止部２７の位置における板ばね１９の撓み量より大きくなるため、第二係止部２７を第二係止孔８から離脱させれば、第一係止部２６を第一係止孔７から自ずと離脱させることができる。そのため、可動体１６の案内突起２８がホルダ１の案内溝１５により案内されながら、可動体１６がホルダ１に対し後方（収容向きＸＡ）へ移動する。可動体１６の第一係止部２６は板ばね１９の復帰に伴いホルダ１の第四係止孔１０に係入されるとともに、可動体１６の第二係止部２７は板ばね１９の復帰に伴いホルダ１の第五係止孔１１に係入され、可動体１６がホルダ１に対し静止して、図６〜７に示すロック位置Ｃになる。ロック位置Ｃでは、第二係止部２７の当接面２７ａが上下方向Ｚへ延びる鉛直面になっているため、その当接面２７ａが突出向きＸＢの移動力を受けて第二係止部２７が第五係止孔１１から容易に離脱せず、また、第一係止部２６の当接面２６ｂが収容向きＸＡの移動力を受けて収容向きＸＡへの移動を規制する。その際、収容ばね２３が伸び切っているので、収容ばね２３の付勢力は可動体１６に付与されない。切除刃１７の刃先縁１７ａはホルダ１の収容孔５に収容されて押出体２９の押出端部３１に対し収容位置Ａの場合より後方へ離間する。必要に応じて、図６〜７に示すロック位置Ｃから図２〜３に示す収容位置Ａにすることも可能である。 When the storage position A shown in FIGS. 2 to 3 is changed to the lock position C shown in FIGS. 6 to 7, first, the second locking portion 27 of the movable body 16 is moved to the side of the storage hole 5 by a fingernail or the like of one hand. When pressed, the cantilever-like plate spring 19 bends toward the accommodation hole 5, and the contact surface 27 b of the second locking portion 27 of the movable body 16 contacts the second locking hole 8 of the holder 1. Next, when the operation portion 22 of the movable body 16 is pulled backward with the other hand while the second locking portion 27 of the movable body 16 is pushed toward the accommodation hole 5 by a fingernail or the like of one hand, the movable body The contact surface 27 b of the 16 second locking portion 27 is pushed by the second locking hole 8, and the second locking portion 27 is detached from the second locking hole 8 of the holder 1. When a finger is placed on the bulging portion 22a of the operation portion 22, the movable body 16 can be easily pulled backward. In this case, in the movable body 16, the amount of bending of the leaf spring 19 at the position of the first locking portion 26 is larger than the amount of bending of the leaf spring 19 at the position of the second locking portion 27. If 27 is released from the second locking hole 8, the first locking portion 26 can be automatically released from the first locking hole 7. Therefore, the movable body 16 moves backward (accommodating direction XA) with respect to the holder 1 while the guide protrusion 28 of the movable body 16 is guided by the guide groove 15 of the holder 1. The first locking portion 26 of the movable body 16 is engaged with the fourth locking hole 10 of the holder 1 as the leaf spring 19 is returned, and the second locking portion 27 of the movable body 16 is returned to the leaf spring 19. Accordingly, the movable body 16 is engaged with the fifth locking hole 11 of the holder 1 to be stationary with respect to the holder 1, and the lock position C shown in FIGS. At the lock position C, the contact surface 27a of the second locking portion 27 is a vertical surface extending in the up-down direction Z, so that the contact surface 27a receives the moving force in the protruding direction XB and receives the second locking portion. 27 does not easily disengage from the fifth locking hole 11, and the contact surface 26b of the first locking portion 26 receives the moving force in the storage direction XA and restricts the movement in the storage direction XA. At that time, since the accommodation spring 23 is fully extended, the urging force of the accommodation spring 23 is not applied to the movable body 16. The cutting edge 17 a of the cutting blade 17 is accommodated in the accommodation hole 5 of the holder 1 and is separated from the extrusion end 31 of the extruded body 29 more backward than in the accommodation position A. If necessary, the storage position A shown in FIGS. 2 to 3 can be changed from the lock position C shown in FIGS.
医療用刃物を使用する場合について説明する。
切除刃１７の円環状刃先縁１７ａを突出位置Ｂにした状態でその円環状刃先縁１７ａを皮膚に当てがって回動させたり押さえ付けたりすると、円環状刃先縁１７ａにより切断された皮膚片が円環状刃先縁１７ａの内側に残る。その後、円環状刃先縁１７ａを収容位置Ａにすると、円環状刃先縁１７ａの内側に残った皮膚片が押出体２９の押出端部３１により円環状刃先縁１７ａから外側へ押し出されて排出される。このようにホルダ１を把持して医療用刃物を使用する場合に、指の腹などがホルダ１の両壁１３に当たっても、第二係止部２７に対する不用意な操作を防止して、突出位置Ｂから収容位置Ａへの切除刃１７の戻りを規制している。
The case where a medical blade is used will be described.
When the annular blade edge 17a is applied to the skin and rotated or pressed while the annular blade edge 17a of the cutting blade 17 is in the protruding position B, the skin piece cut by the annular blade edge 17a. Remains inside the annular cutting edge 17a. Thereafter, when the annular blade edge 17a is set to the storage position A, the skin piece remaining inside the annular blade edge 17a is pushed out from the annular blade edge 17a by the pushing end 31 of the extruded body 29 and discharged. . Thus, when holding the holder 1 and using a medical blade, even if the stomach of the finger hits both walls 13 of the holder 1, an inadvertent operation on the second locking portion 27 is prevented, and the protruding position The return of the cutting blade 17 from B to the storage position A is restricted.
ちなみに、医療用刃物における前後方向Ｘの全長については、切除刃１７の収容位置Ａで約１５０ｍｍに設定され、切除刃１７の突出位置Ｂで約１４８ｍｍに設定され、切除刃１７のロック位置Ｃで約１５６ｍｍに設定されている。また、医療用刃物における左右方向Ｙの幅寸法が約１０ｍｍに設定されている。 Incidentally, the overall length in the front-rear direction X of the medical blade is set to about 150 mm at the housing position A of the cutting blade 17, set to about 148 mm at the protruding position B of the cutting blade 17, and at the locking position C of the cutting blade 17. It is set to about 156 mm. Moreover, the width dimension of the left-right direction Y in a medical blade is set to about 10 mm.
次に、第一実施形態の別例１〜７について説明する。
第一実施形態では、図８（ａ）に示すように、押出体２９の押出端部３１がホルダ１の頭端部３に一致する状態で、収容位置Ａにある切除刃１７の刃先縁１７ａが押出体２９の押出端部３１から切除刃１７の収容向きＸＡへ離間するが、そのほか下記の別例１〜７を採用することができる。
Next, other examples 1 to 7 of the first embodiment will be described.
In the first embodiment, as shown in FIG. 8A, the cutting edge 17 a of the cutting blade 17 at the storage position A in a state where the extrusion end 31 of the extruded body 29 coincides with the head end 3 of the holder 1. Is separated from the extrusion end 31 of the extruded body 29 in the accommodation direction XA of the cutting blade 17, but the following other examples 1 to 7 can be employed.
図８（ｂ）に示す別例１にかかる皮膚切除具においては、押出体２９の押出端部３１がホルダ１の頭端部３に一致する状態で、収容位置Ａにある切除刃１７の刃先縁１７ａが押出体２９の押出端部３１に一致する。 In the skin resection tool according to another example 1 shown in FIG. 8 (b), the cutting edge of the resecting blade 17 at the storage position A in a state where the extruding end 31 of the extruded body 29 coincides with the head end 3 of the holder 1. The edge 17 a coincides with the extrusion end portion 31 of the extruded body 29.
図９（ａ）に示す別例２にかかる皮膚切除具においては、押出体２９の押出端部３１がホルダ１の頭端部３から切除刃１７の収容向きＸＡへ離間する状態で、収容位置Ａにある切除刃１７の刃先縁１７ａが押出体２９の押出端部３１から切除刃１７の収容向きＸＡへ離間する。 In the skin excision tool according to another example 2 shown in FIG. 9A, in the state where the extrusion end 31 of the extruded body 29 is separated from the head end 3 of the holder 1 in the accommodation direction XA of the cutting blade 17, The cutting edge 17a of the cutting blade 17 in A is separated from the extrusion end 31 of the extruded body 29 in the accommodating direction XA of the cutting blade 17.
図９（ｂ）に示す別例３にかかる皮膚切除具においては、押出体２９の押出端部３１がホルダ１の頭端部３から切除刃１７の収容向きＸＡへ離間する状態で、収容位置Ａにある切除刃１７の刃先縁１７ａが押出体２９の押出端部３１に一致する。 In the skin excision tool according to another example 3 shown in FIG. 9B, in the state where the extrusion end 31 of the extruded body 29 is separated from the head end 3 of the holder 1 in the accommodation direction XA of the excision blade 17, The cutting edge 17 a of the cutting blade 17 in A coincides with the extrusion end 31 of the extruded body 29.
図９（ｃ）に示す別例４にかかる皮膚切除具においては、押出体２９の押出端部３１がホルダ１の頭端部３から切除刃１７の収容向きＸＡへ離間する状態で、収容位置Ａにある切除刃１７の刃先縁１７ａが押出体２９の押出端部３１から切除刃１７の突出向きＸＢへ離間する。 In the skin excision tool according to another example 4 shown in FIG. 9 (c), in the state where the extruding end 31 of the extruded body 29 is separated from the head end 3 of the holder 1 in the accommodating direction XA of the resecting blade 17. The cutting edge 17a of the cutting blade 17 in A is separated from the extrusion end 31 of the extruded body 29 in the protruding direction XB of the cutting blade 17.
図９（ｄ）に示す別例５にかかる皮膚切除具においては、押出体２９の押出端部３１がホルダ１の頭端部３から切除刃１７の収容向きＸＡへ離間する状態で、収容位置Ａにある切除刃１７の刃先縁１７ａがホルダ１の頭端部３に一致する。 In the skin excision tool according to another example 5 shown in FIG. 9 (d), in the state where the extrusion end portion 31 of the extruded body 29 is separated from the head end portion 3 of the holder 1 in the accommodation direction XA of the excision blade 17. The cutting edge 17 a of the cutting blade 17 in A coincides with the head end 3 of the holder 1.
図１０（ａ）に示す別例６にかかる皮膚切除具においては、押出体２９の押出端部３１がホルダ１の頭端部３から切除刃１７の突出向きＸＢへ離間する状態で、収容位置Ａにある切除刃１７の刃先縁１７ａが押出体２９の押出端部３１から切除刃１７の収容向きＸＡへ離間する。 In the skin excision tool according to another example 6 shown in FIG. 10A, in the state where the extrusion end 31 of the extruded body 29 is separated from the head end 3 of the holder 1 in the protruding direction XB of the cutting blade 17, The cutting edge 17a of the cutting blade 17 in A is separated from the extrusion end 31 of the extruded body 29 in the accommodating direction XA of the cutting blade 17.
図１０（ｂ）に示す別例７にかかる皮膚切除具においては、押出体２９の押出端部３１がホルダ１の頭端部３から切除刃１７の突出向きＸＢへ離間する状態で、収容位置Ａにある切除刃１７の刃先縁１７ａがホルダ１の頭端部３に一致する。 In the skin excision tool according to another example 7 shown in FIG. 10 (b), in the state in which the extrusion end 31 of the extruded body 29 is separated from the head end 3 of the holder 1 in the protruding direction XB of the cutting blade 17. The cutting edge 17 a of the cutting blade 17 in A coincides with the head end 3 of the holder 1.
本実施形態は下記の効果を有する。
（１） 通常は切除刃１７の刃先縁１７ａをホルダ１の頭端部３から内側へ収容することができ、皮膚片の切断時には切除刃１７の刃先縁１７ａをホルダ１の頭端部３から外側へ突出させることができるので、キャップを不要とする構造を採用した場合にも、刃先縁１７ａの損傷を防止することができる。
This embodiment has the following effects.
(1) Usually, the cutting edge 17a of the cutting blade 17 can be accommodated inward from the head end 3 of the holder 1, and the cutting edge 17a of the cutting blade 17 can be moved from the head end 3 of the holder 1 when cutting a skin piece. Since it can be made to protrude outward, damage to the blade edge 17a can be prevented even when a structure that does not require a cap is employed.
（２） 切除刃１７の刃先縁１７ａによる皮膚片の切断後、切除刃１７の刃先縁１７ａをホルダ１の頭端部３から内側へ収容する操作に合わせて、切除刃１７の刃先縁１７ａから押出体２９の押出端部３１が外側へ突出して皮膚片を押し出し、その皮膚片を採取することができるので、刃先縁１７ａの収容操作と皮膚片の採取作業とを一連の操作で行うことができる。 (2) After cutting the skin piece by the cutting edge 17a of the cutting blade 17, the cutting edge 17a is cut from the cutting edge 17a of the cutting blade 17 in accordance with the operation of accommodating the cutting edge 17a of the cutting blade 17 from the head end 3 of the holder 1 to the inside. Since the extruding end 31 of the extruding body 29 protrudes outward to extrude the skin piece and the skin piece can be collected, the storing operation of the blade edge 17a and the collecting operation of the skin piece can be performed by a series of operations. it can.
（３） 切除刃１７の円環状刃先縁１７ａに押出体２９の押出端部３１の外周縁３１ａが沿うため、円環状刃先縁１７ａに沿って円形状に切断された皮膚片を押出端部３１により円滑に排出して採取することができる。 (3) Since the outer peripheral edge 31a of the extrusion end portion 31 of the extruded body 29 is along the annular cutting edge 17a of the cutting blade 17, the skin piece cut in a circular shape along the annular cutting edge 17a is the extrusion end 31. Can be discharged and collected smoothly.
（４） 押出体２９を可動体１６に支持した状態で可動体１６をホルダ１の頭端部３から挿入した際に押出体２９が係止される連結孔１４をホルダ１に設け、ホルダ１に対する可動体１６の移動に伴い押出体２９がホルダ１の連結孔１４に連結されて、ホルダ１に残った押出体２９に対し可動体１６が移動し得るので、ホルダ１への可動体１６の挿入操作を利用して押出体２９をホルダ１の連結孔１４に対し容易に連結することができる。 (4) The holder 1 is provided with a connection hole 14 in which the extruded body 29 is locked when the movable body 16 is inserted from the head end 3 of the holder 1 with the extruded body 29 supported by the movable body 16. As the movable body 16 moves relative to the holder 1, the extruded body 29 is connected to the connecting hole 14 of the holder 1, and the movable body 16 can move with respect to the extruded body 29 remaining in the holder 1. The extruded body 29 can be easily connected to the connection hole 14 of the holder 1 using the insertion operation.
（５） 可動体１６の切除刃１７の刃先縁１７ａは、ホルダ１の連結孔１４より切除刃１７の突出向きＸＢ側に位置した状態で、ホルダ１に対する可動体１６の移動に伴い移動するので、切除刃１７をホルダ１の頭端部３から内側へ収容する際にホルダ１の連結孔１４などの連結部に邪魔されることがない。 (5) The cutting edge 17a of the cutting blade 17 of the movable body 16 moves with the movement of the movable body 16 relative to the holder 1 in a state where the cutting edge 17a of the movable blade 16 is positioned on the side of the cutting blade 17 projecting direction XB from the connecting hole 14 of the holder 1. When the cutting blade 17 is accommodated inward from the head end portion 3 of the holder 1, the connection portion such as the connection hole 14 of the holder 1 is not obstructed.
（６） 可動体１６は、その可動体１６と押出体２９との間に支持された収容ばね２３により、切除刃１７の突出位置Ｂ側から切除刃１７の収容位置Ａ側へ付勢されるので、収容ばね２３により、可動体１６を容易に収容するとともに、可動体１６の不用意な突出を規制することができる。 (6) The movable body 16 is urged from the protruding position B side of the cutting blade 17 to the storage position A side of the cutting blade 17 by the storage spring 23 supported between the movable body 16 and the extruded body 29. Therefore, the movable body 16 can be easily accommodated by the accommodation spring 23 and the inadvertent protrusion of the movable body 16 can be restricted.
前記実施形態以外にも例えば下記のように構成してもよい。
・ 切除刃１７の刃先縁１７ａについては、円環状以外に例えば三角形などの多角形の環状に形成することができる。また、環状の刃先縁１７ａの一部を切り欠いて互いに分離された両端縁間に僅かな隙間を持たせた環状に形成してもよい。その場合には、押出体２９の押出端部３１の外周縁３１ａも刃先縁１７ａに沿うように刃先縁１７ａに合わせた形状に形成する。
For example, the following embodiment may be configured as follows.
The cutting edge 17a of the cutting blade 17 can be formed in a polygonal ring such as a triangle in addition to the ring shape. Moreover, you may form in the cyclic | annular form which gave a little clearance gap between the both-ends edge which notched a part of cyclic | annular blade edge 17a, and was mutually separated. In that case, the outer peripheral edge 31a of the extrusion end portion 31 of the extruded body 29 is also formed in a shape matching the blade edge 17a along the blade edge 17a.
・ ホルダ１に対し可動体１６を一体成形することができる。
・ 可動体１６の操作手段としては、切除刃１７のロック位置Ｃを取り得ない構造であってもよい。
The movable body 16 can be integrally formed with the holder 1.
-As an operation means of the movable body 16, the structure which cannot take the lock position C of the cutting blade 17 may be sufficient.
・ 可動体１６を付勢する収容ばね２３を省略した構造であってもよい。
・ 切除刃１７の円環状刃先縁１７ａの直径を任意に設定することができ、例えば１〜３０ｍｍに設定することが好ましい。
-The structure which abbreviate | omitted the accommodation spring 23 which urges | biases the movable body 16 may be sufficient.
The diameter of the annular cutting edge 17a of the cutting blade 17 can be arbitrarily set, and is preferably set to 1 to 30 mm, for example.
・ 切除刃１７の刃先縁１７ａを波刃形や鋸刃形などに形成してもよい。
・ 切除刃１７の円環状刃先縁１７ａを含む想定面を前後方向Ｘに対し垂直に交差させているが、この想定面を傾斜させてもよい。
The cutting edge 17a of the cutting blade 17 may be formed in a wave blade shape or a saw blade shape.
-Although the assumed surface including the annular cutting edge 17a of the cutting blade 17 intersects perpendicularly with respect to the front-rear direction X, this assumed surface may be inclined.
・ 切除刃１７をステンレス鋼やチタンなどの金属以外に透明または半透明または不透明な樹脂で形成してもよい。また、ホルダ１や可動体１６や押出体２９を透明または半透明または不透明な樹脂以外に金属で形成してもよい。 The cutting blade 17 may be formed of a transparent, translucent, or opaque resin other than a metal such as stainless steel or titanium. Further, the holder 1, the movable body 16, and the extruded body 29 may be formed of a metal other than a transparent, translucent, or opaque resin.
１…ホルダ、３…ホルダの頭端部、１４…連結孔（連結部）、１６…可動体、１７…可動体の切除刃、１７ａ…刃先縁、２３…収容ばね、２９…押出体、３１…押出端部、３１ａ…外周縁、Ａ…収容位置、Ｂ…突出位置、ＸＡ…収容向き、ＸＢ…突出向き。 DESCRIPTION OF SYMBOLS 1 ... Holder, 3 ... Head end part of holder, 14 ... Connection hole (connection part), 16 ... Movable body, 17 ... Cutting blade of movable body, 17a ... Blade edge, 23 ... Accommodating spring, 29 ... Extrusion body, 31 ... extruded end, 31a ... outer periphery, A ... accommodating position, B ... projecting position, XA ... accommodating direction, XB ... projecting direction.
Claims (8)
押出体の押出端部がホルダの頭端部に一致する状態では、
突出位置にある切除刃の刃先縁が押出体の押出端部から切除刃の突出向きへ離間し、
収容位置にある切除刃の刃先縁が押出体の押出端部から切除刃の収容向きへ離間するか、または、その押出端部に一致する
ことを特徴とする皮膚切除具。 A movable body provided with a cutting blade having an annular cutting edge, and a holder provided with an extruded body having an extrusion end passing through the cutting blade of the movable body, the movable body being movably supported with respect to the holder. The cutting blade of the movable body takes an accommodation position where the edge of the blade is housed inward from the head end of the holder, and a projecting position where the edge of the blade projects outward from the head end of the holder,
In a state where the extrusion end of the extruded body matches the head end of the holder,
The cutting edge of the cutting blade in the protruding position is separated from the extrusion end of the extruded body in the protruding direction of the cutting blade,
A skin resection tool characterized in that the cutting edge of the cutting blade in the storage position is separated from the extrusion end of the extrudate in the storage direction of the cutting blade or coincides with the extrusion end.
押出体の押出端部がホルダの頭端部から切除刃の収容向きへ離間する状態では、
突出位置にある切除刃の刃先縁が押出体の押出端部から切除刃の突出向きへ離間し、
収容位置にある切除刃の刃先縁が押出体の押出端部から切除刃の収容向きへ離間するか、または、その押出端部に一致するか、または、押出体の押出端部から切除刃の突出向きへ離間する
ことを特徴とする皮膚切除具。 A movable body provided with a cutting blade having an annular cutting edge, and a holder provided with an extruded body having an extrusion end passing through the cutting blade of the movable body, the movable body being movably supported with respect to the holder. The cutting blade of the movable body takes an accommodation position where the edge of the blade is housed inward from the head end of the holder, and a projecting position where the edge of the blade projects outward from the head end of the holder,
In the state where the extrusion end of the extruded body is separated from the head end of the holder in the accommodating direction of the cutting blade,
The cutting edge of the cutting blade in the protruding position is separated from the extrusion end of the extruded body in the protruding direction of the cutting blade,
The cutting edge of the cutting blade in the receiving position is separated from the extrusion end of the extrudate in the receiving direction of the cutting blade, or coincides with the extruding end, or from the extrusion end of the extrudate to the cutting blade. A skin resection tool that is spaced apart in a protruding direction.
押出体の押出端部がホルダの頭端部から切除刃の突出向きへ離間する状態では、
突出位置にある切除刃の刃先縁が押出体の押出端部から切除刃の突出向きへ離間し、
収容位置にある切除刃の刃先縁が押出体の押出端部から切除刃の収容向きへ離間する
ことを特徴とする皮膚切除具。 A movable body provided with a cutting blade having an annular cutting edge, and a holder provided with an extruded body having an extrusion end passing through the cutting blade of the movable body, the movable body being movably supported with respect to the holder. The cutting blade of the movable body takes an accommodation position where the edge of the blade is accommodated inward from the head of the holder and a projecting position where the edge of the edge projects outward from the head of the holder,
In the state where the extrusion end of the extruded body is separated from the head end of the holder in the protruding direction of the cutting blade,
The cutting edge of the cutting blade in the protruding position is separated from the extrusion end of the extruded body in the protruding direction of the cutting blade,
A skin resection tool, wherein the cutting edge of the cutting blade in the storage position is separated from the extrusion end of the extrudate in the storage direction of the cutting blade.
切除刃の刃先縁がその突出位置で押出体の押出端部から切除刃の突出向きへ離間し、
切除刃の刃先縁がその収容位置で押出体の押出端部から切除刃の収容向きへ離間する
ことを特徴とする皮膚切除具。 A cutting blade having an annular cutting edge is movably supported with respect to the holder. The holder is provided with an extruded body having an extrusion end passing through the cutting blade, and the cutting edge of the cutting blade is inward from the head end of the holder. Taking a storage position to be stored and a protruding position protruding outward from the head end of the holder,
The cutting edge of the cutting blade is separated from the extrusion end of the extruded body at the protruding position in the protruding direction of the cutting blade,
A skin resection tool characterized in that the cutting edge of the cutting blade is separated from the pushing end of the extruded body in the housing position in the cutting blade housing direction.
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| JP2018134174A (en) * | 2017-02-21 | 2018-08-30 | 株式会社Icst | Skin resection tool |
| CN109757766A (en) * | 2019-03-13 | 2019-05-17 | 赵昱焜 | A kind of cigarette leatheroid removal device and its minimizing technology |
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| JP2007513734A (en) * | 2003-12-16 | 2007-05-31 | アイデックス ラボラトリーズ インコーポレイテッド | Tissue sampling apparatus and method |
| JP2009045339A (en) * | 2007-08-22 | 2009-03-05 | Olympus Corp | Cutter for observation surface, its manufacturing method, and boring tool for observation hole |
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| JP2007513734A (en) * | 2003-12-16 | 2007-05-31 | アイデックス ラボラトリーズ インコーポレイテッド | Tissue sampling apparatus and method |
| JP2009045339A (en) * | 2007-08-22 | 2009-03-05 | Olympus Corp | Cutter for observation surface, its manufacturing method, and boring tool for observation hole |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2018134174A (en) * | 2017-02-21 | 2018-08-30 | 株式会社Icst | Skin resection tool |
| CN109757766A (en) * | 2019-03-13 | 2019-05-17 | 赵昱焜 | A kind of cigarette leatheroid removal device and its minimizing technology |
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