JP6544725B2

JP6544725B2 - Skin removal tool

Info

Publication number: JP6544725B2
Application number: JP2017029681A
Authority: JP
Inventors: 京齋藤; 横井　博之; 博之横井; 政貴山形
Original assignee: ICST CORP
Current assignee: ICST CORP
Priority date: 2017-02-21
Filing date: 2017-02-21
Publication date: 2019-07-17
Anticipated expiration: 2037-02-21
Also published as: JP2018134174A

Description

本発明は、皮膚組織標本の採取をおこなうための医療用皮膚切除具に関する。 The present invention relates to a medical dermabrasion device for collecting skin tissue samples.

皮膚は、人間を含めた生物にとって重要な器官の一つであり、体表を覆って外界から身体を防衛する役割を果たす。皮膚は、主に表皮、真皮といった組織から構成されている。性別、年齢、部位により異なるが、人間の成人において健常皮膚の厚みは、おおよそ２．０ｍｍから３．０ｍｍである。 The skin is one of the important organs for living things including humans, and plays a role of covering the body surface and protecting the body from the outside world. The skin is mainly composed of tissues such as the epidermis and the dermis. The thickness of healthy skin in human adults is approximately 2.0 mm to 3.0 mm, although it varies depending on the gender, age, and site.

皮膚疾患において、病変の一部を採取して顕微鏡等で観察する検査を皮膚生検という。皮膚疾患においては、表面的な症状が類似していても、その発症機序が異なるものが少なくなく、臨床症状だけでは確定診断が困難な場合も多い。そこで病因を特定するための病理的な検査のために皮膚生検がおこなわれる。 In skin diseases, a test in which a part of the lesion is collected and observed with a microscope or the like is called a skin biopsy. In skin diseases, even if their superficial symptoms are similar, there are not many that their onset mechanisms differ, and there are many cases in which it is difficult to make a definitive diagnosis with clinical symptoms alone. There, skin biopsies are performed for pathological examination to identify the etiology.

皮膚組織の採取方法の一つに、環状の刃を備えた生検トレパン（パンチ）と呼ばれる医療用皮膚切除具を用いて、皮下脂肪組織を含めた、予め決められた深さまで丸く切り抜く方法がある。図７（Ａ）に従来の生検トレパン１００の例を示す（特許文献１参照）。生検トレパン１００は、主に筒刃部１２０と把持部１５０から構成される。把持部１５０には滑り止めのために溝部１５５が設けられており、術者は、指で溝部１５５を把持して生検トレパン１００の筒刃部１２０の刃先を皮膚に押し当てて回転させることで、皮膚組織を切除し、採取する。 One of the methods for collecting skin tissue is a method of cutting out to a predetermined depth including subcutaneous fat tissue using a medical skin excision tool called biopsy trep (punch) equipped with an annular blade. is there. FIG. 7A shows an example of a conventional biopsy treppan 100 (see Patent Document 1). The biopsy trepan 100 mainly includes a cylindrical blade portion 120 and a gripping portion 150. The grip portion 150 is provided with a groove portion 155 for preventing slippage, and the operator holds the groove portion 155 with a finger and presses the blade edge of the cylindrical blade portion 120 of the biopsy test pan 100 against the skin to rotate it. Then remove and collect skin tissue.

図７（Ａ）に示す生検トレパン１００には、組織標本の厚みを調整するアダプタ１１０が装着可能である。アダプタ１１０の厚みＡと、筒刃部１２０の長さの差Ｋの分だけ、皮膚内に刺すことが可能になることから、厚さの異なるアダプタ１１０を複数用意することで、複数の厚みの組織標本を採取できることになる（図７（Ｂ）参照）。 An adapter 110 for adjusting the thickness of a tissue sample can be attached to the biopsy trep 100 shown in FIG. 7 (A). As it becomes possible to pierce into the skin by the difference A between the thickness A of the adapter 110 and the length K of the cylindrical blade portion 120, by preparing a plurality of adapters 110 having different thicknesses, a plurality of thicknesses can be obtained. Tissue samples can be collected (see FIG. 7 (B)).

図７（Ｃ）から図７（Ｆ）で、生検トレパン１００による組織標本の採取動作を説明する。まず術者は、生検トレパン１００の筒刃部１２０を、皮膚Ｓに向かって押しつける（図７（Ｃ）参照）。筒刃部１２０は、アダプタ１１０が皮膚表面に当たるまで、皮膚に差し込まれる（図７（Ｄ）参照）。円柱状にくり抜かれた皮膚組織Ｘをピンセットとハサミで摘出し皮膚を縫合する（図７（Ｅ）参照）。そして筒刃部１２０から採取された皮膚組織Ｘを取り出す（図７（Ｆ）参照）。 7 (C) to 7 (F), the operation of collecting a tissue sample by the biopsy treppan 100 will be described. First, the operator presses the cylindrical blade portion 120 of the biopsy trepan 100 toward the skin S (see FIG. 7 (C)). The cylindrical blade portion 120 is inserted into the skin until the adapter 110 hits the skin surface (see FIG. 7D). The cylindrically cut-out skin tissue X is removed with forceps and scissors and the skin is sutured (see FIG. 7E). Then, the skin tissue X collected from the cylindrical blade portion 120 is taken out (see FIG. 7 (F)).

特公平７−１０８３００号公報Japanese Examined Patent Publication 7-108300

しかしながら、特許文献１に記載の生検トレパンでは、様々な厚みの組織標本を採取する機会がある場合に、それぞれ異なった厚みＡのアダプタ１１０を用意しなくてはいけない。またアダプタがないタイプの生検トレパンならば、皮膚を把持部１５０の端面１５２に突き当てることで、皮膚に差し込む筒刃の深さを調整することになるが、長さの異なる筒刃を持つ複数の生検トレパンを常時準備しておく必要があり煩雑であり費用もかかる。 However, in the case of the biopsy treppan described in Patent Document 1, when there is an opportunity to collect tissue specimens of various thicknesses, it is necessary to prepare adapters 110 of different thicknesses A. Also, in the case of a biopsy trep pan of the type without an adapter, the depth of the cylindrical blade inserted into the skin can be adjusted by pushing the skin against the end surface 152 of the grip 150, but with cylindrical blades having different lengths. It is necessary to always prepare a plurality of biopsy trepans, which is cumbersome and expensive.

本発明は、斯かる実情に鑑み、簡単な操作で様々な厚みの組織標本を採取可能な皮膚切除具を提供することを目的とする。 An object of the present invention is, in view of such circumstances, to provide a skin resection tool capable of collecting tissue specimens of various thicknesses with a simple operation.

（１）本発明は、先端に環状の刃先を有し、該刃先により皮膚を切除可能な軸状の切除手段と、前記切除手段が内部に挿入されて、該切除手段を軸方向に案内可能な筒状の外筒と、を備え、前記外筒と前記切除手段の間には、前記外筒と前記切除手段の軸方向の相対移動を規制する係合機構が設けられ、前記外筒の先端面と前記刃先までの距離によって、前記皮膚の切除深さが調整可能とされることを特徴とする皮膚切除具を提供する。 (1) According to the present invention, an axial cutting means having an annular cutting edge at its tip and capable of cutting the skin by the cutting edge, and the cutting means inserted therein, can guide the cutting means in the axial direction An engagement mechanism for restricting relative movement between the outer cylinder and the cutting means in the axial direction is provided between the outer cylinder and the cutting means; The skin cutting tool is characterized in that the cutting depth of the skin can be adjusted by the distance between the tip surface and the cutting edge.

上記（１）に記載する発明によれば、皮膚切除具が外筒と切除手段という二つの部品で構成されており、外筒と切除手段の間に互いの軸方向に対する相対移動を規制する係合機構が設けられているので、外筒の先端面から突出した刃先の長さを自在に調整することができ、術者が望む様々な厚みの皮膚組織標本を、容易に採取することができるという極めて優れた効果を奏する。 According to the invention described in the above (1), the skin cutting tool is composed of two parts, the outer cylinder and the cutting means, and the relative movement between the outer cylinder and the cutting means in relation to the axial direction is restricted. Since the fitting mechanism is provided, the length of the cutting edge protruding from the tip end face of the outer cylinder can be freely adjusted, and skin tissue specimens of various thicknesses desired by the operator can be easily collected. It plays an extremely excellent effect.

（２）本発明は、前記係合機構が、前記外筒については、前記外筒の軸方向で前記先端面と逆側にある後端部近傍に配置されることを特徴とする上記（１）に記載の皮膚切除具を提供する。 (2) The present invention is characterized in that the engagement mechanism is disposed in the vicinity of a rear end portion opposite to the front end surface in the axial direction of the outer cylinder in the outer cylinder. The skin removal tool described in 1.) is provided.

上記（２）に記載する発明によれば、係合機構が外筒の後端部近傍に配置されるので、例えば外筒が透明な部材で製造されている場合に、切除手段の刃先が、外筒に設けられた係合機構の存在により見えにくくなることが避けられるという優れた効果を奏する。 According to the invention described in (2), since the engagement mechanism is disposed in the vicinity of the rear end of the outer cylinder, for example, when the outer cylinder is manufactured of a transparent member, the cutting edge of the cutting means is The excellent effect is obtained that the invisibility due to the presence of the engagement mechanism provided on the outer cylinder can be avoided.

（３）本発明は、前記係合機構の少なくとも一部が、前記外筒について、前記外筒の長手方向の長さの１／２の位置よりも前記後端部側に配置されることを特徴とする上記（２）に記載の皮膚切除具を提供する。 (3) According to the present invention, at least a part of the engagement mechanism is disposed on the outer cylinder at a position closer to the rear end than a half of the length of the outer cylinder in the longitudinal direction. The skin removal tool according to the above (2) is provided.

上記（３）に記載する発明によれば、係合機構の少なくとも一部が外筒の長手方向の長さの１／２の位置よりも前記後端部側に配置されるので、例えば外筒が透明な部材で製造されている場合に、切除手段の刃先が、外筒に設けられた係合機構の存在により見えにくくなることが避けられるという優れた効果を奏する。 According to the invention described in the above (3), at least a part of the engagement mechanism is arranged closer to the rear end than the position of half the length of the outer cylinder in the longitudinal direction. In the case of being made of a transparent member, the cutting edge of the cutting means can be prevented from being obscured by the presence of the engagement mechanism provided on the outer cylinder.

（４）本発明は、前記外筒が、連続して軸方向に延びる中空構造となり、内部に、前記切除手段を収容する外筒中空部を備え、前記外筒中空部の周面に形成され、前記外筒中空部の内部空間を外部に露呈可能な外筒開口部を少なくとも１つ備えることを特徴とする、上記（１）乃至（３）のいずれかに記載の皮膚切除具を提供する。 (4) In the present invention, the outer cylinder has a hollow structure extending continuously in the axial direction, and the inner cylinder is provided with an outer cylinder hollow portion for accommodating the cutting means, and is formed on the circumferential surface of the outer cylinder hollow portion The skin resection tool according to any one of (1) to (3), further comprising at least one outer cylinder opening capable of exposing the internal space of the outer cylinder hollow portion to the outside. .

外筒の後端近傍に係合機構が設けられる場合、実際の処置の際に、皮膚切除具の先端近くを把持すると、外筒のみを固定することになり、切除手段の刃先を皮膚に押しつけて回転させようとしても、外筒のみが空回りして皮膚切除ができない可能性がある。上記（４）に記載の発明によれば、外筒の周面に設けられて、切除手段を収容する外筒中空部の内部空間を外部に露呈可能な外筒開口部を通じて、手指で切除手段を押さえることができるので、切除手段を手指で固定した状態で刃先を回転させることができるという極めて優れた効果を奏する。 When an engagement mechanism is provided near the rear end of the outer cylinder, if the tip of the skin cutting tool is gripped during actual treatment, only the outer cylinder will be fixed, and the cutting edge of the cutting means is pressed against the skin Even if it tries to rotate it, only the outer cylinder may go idle and skin removal may not be possible. According to the invention described in the above (4), the cutting means is provided by the finger through the outer cylinder opening portion which is provided on the peripheral surface of the outer cylinder and can expose the internal space of the outer cylinder hollow portion accommodating the cutting means to the outside. The cutting edge can be rotated while the cutting means is fixed with fingers.

（５）本発明は、前記係合機構はネジ構造であり、前記外筒と前記切除手段を相対回動させることで、前記先端面と前記刃先までの距離が可変となることを特徴とする、上記（１）乃至（４）のいずれかに記載の皮膚切除具を提供する。 (5) The present invention is characterized in that the engagement mechanism is a screw structure, and the distance between the tip surface and the cutting edge can be varied by relatively rotating the outer cylinder and the cutting means. The cutaneous removal tool according to any one of the above (1) to (4).

上記（５）に記載する発明によれば、外筒と切除手段の間にある互いの軸方向に対する相対移動を規制する係合機構が、ネジ構造であるので、術者は外筒と切除手段を相対回動させることで、容易に外筒の先端面から突出した刃先の長さを自在に調整することができ、術者が望む様々な厚みの皮膚組織標本を、容易に採取することができるという極めて優れた効果を奏する。 According to the invention described in the above (5), since the engagement mechanism between the outer cylinder and the cutting means for restricting relative movement with respect to the axial direction is a screw structure, the operator can use the outer cylinder and the cutting means By rotating the relative position, the length of the cutting edge protruding from the tip end face of the outer cylinder can be easily adjusted freely, and it is possible to easily collect skin tissue specimens of various thicknesses desired by the operator. There is an extremely excellent effect of being able to

（６）本発明は、前記係合機構が、前記外筒又は前記切除手段の一方に形成され、軸方向に複数の凹部又はスリットとなる多段係合部と、前記外筒又は前記切除手段の他方に形成され、前記多段係合部と係合可能な凸部と、を有することを特徴とする、上記（１）乃至（４）のいずれかに記載の皮膚切除具を提供する。 (6) In the present invention, the engagement mechanism is formed in one of the outer cylinder or the cutting means, and is a multistage engaging portion which becomes a plurality of recesses or slits in the axial direction, and the outer cylinder or the cutting means The skin cutting tool according to any one of the above (1) to (4), further comprising: a convex portion formed on the other side and engageable with the multistage engaging portion.

上記（６）に記載する発明によれば、外筒と切除手段の間にある互いの軸方向に対する相対移動を規制する係合機構が、相対移動距離をいくつかの離散的な値に規定できる多段係合部であるため、予め定められた複数の厚みから選択しての皮膚標本を容易に採取することができるという優れた効果を奏する。 According to the invention described in the above (6), the engagement mechanism for restricting the relative movement in the axial direction between the outer cylinder and the cutting means can define the relative movement distance to several discrete values. The multistage engaging portion has an excellent effect that the skin sample selected from a plurality of predetermined thicknesses can be easily collected.

（７）本発明は、前記係合機構が、前記外筒及び前記切除手段の周方向の相対回転、或いは、前記外筒又は前記切除手段に弾性変形により、前記複数の凹部又はスリットから特定の凹部又はスリットを選択して前記凸部と係合させることを特徴とする、上記（６）に記載の皮膚切除具を提供する。 (7) In the present invention, the engagement mechanism is specified from the plurality of recesses or slits by relative rotation of the outer cylinder and the cutting means in the circumferential direction or by elastic deformation of the outer cylinder or the cutting means. The skin cutting tool according to (6) above is provided, wherein a recess or a slit is selected to be engaged with the protrusion.

上記（７）に記載する発明によれば、外筒と切除手段の間にある互いの軸方向に対する相対移動を規制する係合機構が、外筒及び切除手段の周方向の相対回転、或いは、外筒又は切除手段に弾性変形により係合させるものであることから、術者の指の力で容易に相対移動距離を選択でき、術中に簡単に予め定められた複数の厚みから選択しての皮膚標本を容易に採取することができるという優れた効果を奏する。 According to the invention described in (7), the engagement mechanism between the outer cylinder and the cutting means for restricting the relative movement with respect to each other is the relative rotation of the outer cylinder and the cutting means in the circumferential direction, or Since the relative movement distance can be easily selected by the force of the operator's finger because it is engaged with the outer cylinder or the excision means by elastic deformation, it is possible to select from a plurality of predetermined thicknesses easily during the operation. The excellent effect is that skin samples can be easily collected.

（８）本発明は、前記外筒における少なくとも先端近傍の外径が、他の部分よりも細く設定されることを特徴とする、上記（１）乃至（７）のいずれかに記載の皮膚切除具を提供する。 (8) The skin excision according to any one of (1) to (7) above, wherein the outer diameter of at least the tip of the outer cylinder is set smaller than that of the other part. Provide the

上記（８）に記載する発明によれば、皮膚切除具を手に持って処置を行う場合に、術者の視界から、切除手段の刃先が外筒によって隠され難いので、術者が適切な場所に刃先を当てることができ、術者が切除したい病変部位を確実に採取しやすいという極めて優れた効果を奏する。 According to the invention described in the above (8), when carrying out the treatment by holding the skin cutting tool in hand, the cutting blade of the cutting means is less likely to be concealed by the outer cylinder from the operator's field of view. The cutting edge can be hit on the place, and it is extremely effective that the operator can easily pick up the lesion site that he wants to remove.

（９）本発明は、前記係合機構の一部が、前記外筒における前記他の部分の内周面に設けられることを特徴とする、上記（８）に記載の皮膚切除具を提供する。 (9) The present invention provides the skin resection tool according to the above (8), characterized in that a part of the engagement mechanism is provided on the inner peripheral surface of the other part of the outer cylinder. .

上記（９）に記載する発明によれば、外筒と切除手段の間にある互いの軸方向に対する相対移動を規制する係合機構の一部が、外筒における他の部分の内周面に設けられるので、係合機構の構造によって、術者の視界から、切除手段の刃先が外筒によって隠され難くなるので、術者が適切な場所に刃先を当てることができ、術者が切除したい病変部位を確実に採取しやすくなるという優れた効果を奏する。 According to the invention described in (9) above, a part of the engagement mechanism between the outer cylinder and the cutting means for restricting the relative movement in the axial direction is on the inner peripheral surface of the other part of the outer cylinder. As it is provided, the structure of the engagement mechanism makes it difficult for the cutting edge of the cutting means to be hidden by the outer cylinder from the viewpoint of the operator, so that the operator can apply the cutting edge to an appropriate place and the operator wants to cut off It has an excellent effect of making it easy to reliably collect a lesion site.

（１０）本発明は、前記外筒の後端と比較して前記切除手段の後端が後方に突出すると共に、前記外筒の後端と前記切除手段が互いに接近していることを特徴とする、上記（１）乃至（９）のいずれかに記載の皮膚切除具を提供する。 (10) The present invention is characterized in that the rear end of the cutting means protrudes rearward as compared with the rear end of the outer cylinder, and the rear end of the outer cylinder and the cutting means are close to each other. The skin removal tool according to any one of the above (1) to (9) is provided.

上記（１０）に記載する発明によれば、外筒の後端と比較して切除手段の後端が後方に突出しているので、突出した切除手段の後端を術者が把持することができ、切除手段の刃先を適切な力で皮膚に押しつけて、切除が可能になるという優れた効果を奏する。 According to the invention described in the above (10), since the rear end of the cutting means protrudes rearward as compared with the rear end of the outer cylinder, the operator can hold the rear end of the protruding cutting means. The cutting edge of the cutting means is pressed against the skin with an appropriate force to achieve the excellent effect that the cutting can be performed.

（１１）本発明は、前記切除手段が、前記環状の刃先から連続して軸方向に延びる中空構造となり、内部に、切除した皮膚を収容可能な中空部と、前記中空部の周面に形成され、該中空部の内部空間を外部に露呈可能な開口と、を備えることを特徴とする、上記（１）乃至（１０）のいずれかに記載の皮膚切除具を提供する。 (11) In the present invention, the cutting means has a hollow structure continuously extending in the axial direction from the annular cutting edge, and is formed in a hollow portion capable of accommodating cut skin and a circumferential surface of the hollow portion And the opening for exposing the internal space of the hollow portion to the outside, provided is the skin cutting tool according to any one of the above (1) to (10).

上記（１１）に記載する発明によれば、切除手段が環状の刃先から連続して軸方向に延びる中空構造を有するので、中空部分に皮膚組織を容易にかつ組織の形状を保ったまま保持することができるという効果を奏する。また中空部の周面に形成され、中空部の内部空間を外部に露呈可能な開口を備えるので、開口部分からピンセットなどで採取した皮膚組織を刃先方向に押し出すことが可能であり、皮膚組織標本を容易にかつ組織の形状を保ったまま、切除手段内部から取り出せるという優れた効果を奏する。 According to the invention described in the above (11), since the cutting means has a hollow structure continuously extending in the axial direction from the annular cutting edge, the skin tissue is easily held in the hollow portion and the shape of the tissue is maintained. The effect of being able to Moreover, since it is formed in the surrounding surface of a hollow part and it has an opening which can expose the internal space of a hollow part outside, it is possible to push out the skin tissue extract | collected with tweezers etc. from an opening part to a blade edge direction. There is an excellent effect that it can be easily removed from the inside of the excision means while maintaining the shape of the tissue.

（１２）本発明は、前記切除手段又は前記外筒には、前記外筒の前記先端から前記刃先までの距離を表す目盛りが設けられていることを特徴とする、上記（１）乃至（１１）のいずれかに記載の皮膚切除具を提供する。 (12) The present invention is characterized in that the cutting means or the outer cylinder is provided with a scale indicating the distance from the tip of the outer cylinder to the cutting edge. The cutaneous resection tool according to any one of the above.

上記（１２）に記載する発明によれば、外筒の先端面から突出した刃先の長さを、術中に正確に調整できるので、術者が所望する適切な厚みの皮膚組織標本を容易に採取できるという優れた効果を奏する。 According to the invention described in the above (12), the length of the cutting edge protruding from the tip end face of the outer cylinder can be accurately adjusted during the operation, so that a skin tissue sample having an appropriate thickness desired by the operator can be easily collected. An excellent effect of being able to

（１３）本発明は、前記切除手段における前記刃先の内径が１ｍｍ以上、且つ、１０ｍｍ以下であることを特徴とする、上記（１）乃至（１２）のいずれかに記載の皮膚切除具を提供する。 (13) The present invention provides the skin resection tool according to any one of the above (1) to (12), wherein the inside diameter of the cutting edge in the cutting means is 1 mm or more and 10 mm or less. Do.

上記（１３）に記載する発明によれば、刃先の内径が１ｍｍ以上、且つ、１０ｍｍ以下なので、多くの病変部について適切な範囲の皮膚組織標本を採取できるという優れた効果を奏する。 According to the invention described in the above (13), since the inner diameter of the blade edge is 1 mm or more and 10 mm or less, an excellent effect is obtained that skin tissue specimens in an appropriate range can be collected for many lesions.

（１４）本発明は、前記外筒の先端面と前記刃先までの距離が１ｍｍ以上、且つ、２０ｍｍ以下であることを特徴とする、上記（１）乃至（１３）のいずれかに記載の皮膚切除具を提供する。 (14) The skin according to any one of (1) to (13), wherein the distance between the tip end face of the outer cylinder and the blade edge is 1 mm or more and 20 mm or less. Provide a cutting tool.

上記（１４）に記載する発明によれば、皮膚に当たって深さを決める外筒の先端面から刃先までの距離が１ｍｍ以上、且つ、２０ｍｍ以下なので、多くの病変部について適切な深さの組織標本を容易に採取できるという効果を奏する。 According to the invention described in the above (14), since the distance from the tip surface of the outer cylinder which determines the depth to the skin to the blade edge is 1 mm or more and 20 mm or less, tissue specimens of appropriate depth for many lesions. The effect is that you can easily collect

（１５）本発明は、前記切除手段が、交換可能であることを特徴とする、上記（１）乃至（１４）のいずれかに記載の皮膚切除具を提供する。 (15) The present invention provides the skin excision device according to any one of the above (1) to (14), wherein the excision means is replaceable.

上記（１５）に記載する発明によれば、外筒の規格はそのままに、異なった大きさの刃先の内径を持つ切除手段や、外筒の先端面から刃先までの距離が異なる切除手段を使用できる。したがって採取できる厚みを調整可能な皮膚切除具を予め用意したい場合に、使用する医療関係者は、必要であれば複数の適切な切除手段の他、共通する一種類の外筒を購入するだけで済み、費用面で大幅な節約をすることができるという優れた効果を奏する。 According to the invention described in (15), the standard of the outer cylinder is used as it is, the cutting means having the inner diameter of the cutting edge of different sizes or the cutting means having different distances from the tip end surface of the outer cylinder to the cutting edge it can. Therefore, when it is desired to prepare in advance a skin cutting tool whose thickness can be adjusted, the medical staff to be used need only purchase one common type of outer cylinder in addition to a plurality of appropriate cutting means if necessary. It has an excellent effect of being able to make significant savings in cost.

本発明の請求項１〜１５記載の皮膚切除具によれば、外筒の先端面から突出した刃先の長さを自在に調整することができ、術者が望む様々な厚みの皮膚組織標本を、容易に採取することができるという優れた効果を奏する。 According to the skin resection tool of claims 1 to 15 of the present invention, it is possible to freely adjust the length of the cutting edge protruding from the tip end face of the outer cylinder, and to prepare skin tissue specimens of various thicknesses desired by the operator. It has an excellent effect that it can be easily collected.

（Ａ）本発明の第一実施形態に係る皮膚切除具の断面図である。（Ｂ）外筒の断面図である。（Ｃ）切除手段の断面図である。(A) It is sectional drawing of the skin removal tool which concerns on 1st embodiment of this invention. (B) It is sectional drawing of an outer cylinder. (C) It is sectional drawing of a cutting means. （Ａ）皮膚切除具の使用方法を説明する説明図である。（Ｂ）皮膚切除具の外筒が筒刃をすべて覆い隠している態様を示す説明図である。（Ｃ）皮膚切除具の外筒の先端から筒刃の刃先が長さＤ１だけ突出した態様を示す説明図である。（Ｄ）皮膚切除具の外筒の先端から筒刃の刃先が長さＤ２（Ｄ２＞Ｄ１）だけ突出した態様を示す説明図である。(A) It is explanatory drawing explaining the usage method of a skin cutting tool. (B) It is explanatory drawing which shows the aspect which the outer cylinder of the skin cutting tool covers and hides the cylinder blade altogether. (C) It is explanatory drawing which shows the aspect which the blade tip of the cylinder blade protruded only length D 1 from the front-end | tip of the outer cylinder of a skin cutting tool. (D) It is explanatory drawing which shows the aspect which the blade tip of the cylinder blade protruded only length D2 (D2> D1) from the front-end | tip of the outer cylinder of a skin cutting tool. （Ａ）後端に係合機構を有する外筒の説明図である。（Ｂ）後端に係合機構を有する切除手段の説明図である。（Ｃ）後端に係合機構を有する皮膚切除具の説明図である。（Ｄ）刃先を先端から突出させた皮膚切除具の説明図である。（Ｅ）外筒の開口部に指を当てて、切除手段を固定することで切除を容易にする使用方法を説明する説明図である。(A) It is explanatory drawing of the outer cylinder which has an engagement mechanism in a rear end. (B) It is explanatory drawing of the cutting means which has an engagement mechanism in a rear end. (C) It is explanatory drawing of the skin cutting tool which has an engagement mechanism in a back end. (D) It is explanatory drawing of the skin cutting tool which made the blade edge project from the front-end | tip. (E) A finger is placed on the opening of the outer cylinder to fix the excision means, thereby facilitating excision. （Ａ）目盛り付きの皮膚切除具の説明図である。（Ｂ）皮膚切除具の外筒の先端から筒刃の刃先が長さＮだけ突出した態様を示す説明図である。(A) It is explanatory drawing of a skin cutting tool with a scale. (B) It is explanatory drawing which shows the aspect which the edge of the cylindrical blade protruded only length N from the front-end | tip of the outer cylinder of a skin cutting tool. （Ａ）本発明の第二実施形態に係る皮膚切除具の外筒の断面図である。（Ｂ）切除手段の説明図である。（Ｃ）係合機構が多段係合部である皮膚切除具の動作を示す説明図である。（Ｄ）皮膚切除具の外筒の先端から筒刃の刃先が長さＤ３だけ突出した態様を示す説明図である。（Ｅ）係合機構が多段係合部である皮膚切除具の動作を示す説明図である。（Ｆ）皮膚切除具の外筒の先端から筒刃の刃先が長さＤ４（Ｄ４＞Ｄ３）だけ突出した態様を示す説明図である。(A) It is sectional drawing of the outer cylinder of the skin cutting tool which concerns on 2nd embodiment of this invention. (B) It is explanatory drawing of a cutting means. (C) It is explanatory drawing which shows operation | movement of the skin cutting tool whose engagement mechanism is a multistage engagement part. (D) It is explanatory drawing which shows the aspect which the blade edge | tip of the cylinder blade protruded only length D 3 from the front-end | tip of the outer cylinder of a skin cutting tool. (E) It is explanatory drawing which shows operation | movement of the skin cutting tool whose engagement mechanism is a multistage engagement part. (F) It is explanatory drawing which shows the aspect which the blade tip of the cylinder blade protruded only length D4 (D4> D3) from the front-end | tip of the outer cylinder of a skin cutting tool. （Ａ）本発明の第三実施形態に係る皮膚切除具における切除具の筒刃側面に開口がある態様を説明する説明図である。（Ｂ）筒刃に保持される皮膚組織標本を説明する説明図である。（Ｃ）筒刃の中空部分から皮膚組織標本を取り出す動作を説明する説明図である。(A) It is explanatory drawing explaining the aspect which has an opening in the cylinder blade side surface of the cutting tool in the skin cutting tool which concerns on 3rd embodiment of this invention. (B) It is explanatory drawing explaining the skin tissue sample hold | maintained at a cylinder blade. (C) It is explanatory drawing explaining the operation | movement which takes out a skin tissue sample from the hollow part of a cylinder blade. （Ａ）深さ調節可能な従来の生検トレパンの説明図である。（Ｂ）深さ調節のためのアダプタを装着した生検トレパンの説明図である。（Ｃ）生検トレパンによる処置を説明する説明図である。（Ｄ）皮膚組織に筒刃が刺さった状態を説明する説明図である。（Ｅ）皮膚組織標本を保持した生検トレパンを説明する説明図である。（Ｆ）生検トレパンによって採取された皮膚組織標本を説明する説明図である。(A) An illustration of a depth-adjustable conventional biopsy trep. (B) It is explanatory drawing of the biopsy torepan equipped with the adapter for depth adjustment. (C) It is explanatory drawing explaining the treatment by a biopsy torepan. (D) It is explanatory drawing explaining the state which the cylinder blade stuck in skin tissue. (E) It is explanatory drawing explaining the biopsy torepan which hold | maintained the skin tissue sample. (F) It is explanatory drawing explaining the skin tissue sample extract | collected by the biopsy treppan.

以下、本考案の実施の形態を添付図面を参照して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

図１〜図６は考案を実施する形態の一例であって、図中、同一の符号を付した部分は同一物を表わす。なお、各図において一部の構成を適宜省略して、図面を簡略化する。そして、部材の大きさ、形状、厚みなどを適宜誇張して表現する。 1 to 6 show an example of the embodiment of the present invention, and in the drawings, the parts denoted by the same reference numerals represent the same ones. In the drawings, a part of the configuration is appropriately omitted to simplify the drawings. Then, the size, shape, thickness and the like of the members are appropriately exaggerated and expressed.

図１（Ａ）は、本発明の第一実施形態に係る皮膚切除具１の断面図である。皮膚切除具１は、外筒１０と切除手段２０を備える。外筒１０と切除手段２０の間には、外筒１０と切除手段２０の軸方向の相対移動を規制する係合機構Ｗが設けられ、外筒１０の先端面１４（図１（Ｂ）参照）と、切除手段２０の刃先２２までの距離によって、皮膚の切除深さが調整可能である。係合機構Ｗはネジ構造であり、外筒１０と切除手段２０を相対回動させることで、外筒１０の先端面１４から、切除手段２０の刃先２２までの距離が可変となる。 FIG. 1 (A) is a cross-sectional view of a skin removal tool 1 according to a first embodiment of the present invention. The skin removal tool 1 includes an outer cylinder 10 and a removal means 20. An engagement mechanism W for restricting relative movement between the outer cylinder 10 and the cutting means 20 in the axial direction is provided between the outer cylinder 10 and the cutting means 20, and a tip surface 14 of the outer cylinder 10 (see FIG. 1B). And the distance to the cutting edge 22 of the cutting means 20, the cutting depth of the skin can be adjusted. The engagement mechanism W is a screw structure, and by rotating the outer cylinder 10 and the cutting means 20 relative to each other, the distance from the tip surface 14 of the outer cylinder 10 to the cutting edge 22 of the cutting means 20 becomes variable.

外筒１０の後端と比較して後述する切除手段２０の後端は、後方に突出しているので、突出している部分を手指で把持し操作することが可能になっている。そして外筒１０の後端と切除手段２０は互いに接近している。 The rear end of the cutting means 20 described later compared with the rear end of the outer cylinder 10 protrudes rearward, so that it is possible to grip and operate the protruding portion with fingers. The rear end of the outer cylinder 10 and the cutting means 20 are close to each other.

図１（Ｂ）には、外筒１０の断面図を示す。外筒１０は、後述する切除手段２０が内部に挿入されて、切除手段２０を軸方向に案内可能な筒状をなす。また外筒１０は、軸に垂直断面が略円環形であり、軸方向に延び円筒状をなす。外筒１０の材質は、例えばポリプロピレンやポリカーボネートといった合成樹脂である。 FIG. 1B shows a cross-sectional view of the outer cylinder 10. The outer cylinder 10 has a cylindrical shape in which the cutting means 20 described later can be inserted into the inside to guide the cutting means 20 in the axial direction. Further, the outer cylinder 10 has a substantially annular shape in a cross section perpendicular to the axis, extends in the axial direction, and has a cylindrical shape. The material of the outer cylinder 10 is, for example, a synthetic resin such as polypropylene or polycarbonate.

外筒１０は、少なくとも先端１２の部分が透明であることが望ましい。また外筒１０における少なくとも先端１２近傍の外径Ｔ１は、他の部分の外径Ｔ２よりも細く絞られた形状に設定される。なお先端１２近傍の外径Ｔ１の大きさは、少なくとも後述する切除手段２０の筒刃２４の外径の大きさよりも大きい。外筒１０は円筒状であり、外筒１０の両端面を貫通する外筒中空部１６の内周面には、雌ネジ構造４０が設けられ、係合機構Ｗの一部を構成する。 As for the outer cylinder 10, it is desirable that at least a portion of the tip 12 be transparent. Further, the outer diameter T1 at least in the vicinity of the tip 12 in the outer cylinder 10 is set to a shape narrowed smaller than the outer diameter T2 of the other portion. Note that the size of the outer diameter T1 near the tip 12 is at least larger than the size of the outer diameter of the cylindrical blade 24 of the cutting means 20 described later. The outer cylinder 10 has a cylindrical shape, and a female screw structure 40 is provided on the inner peripheral surface of the outer cylinder hollow portion 16 penetrating the both end surfaces of the outer cylinder 10, and constitutes a part of the engagement mechanism W.

ここで係合機構Ｗである雌ネジ構造４０は、外筒１０における先端１２ではない他の部分の内周面に設けられる。外筒１０と切除手段２０の間にある互いの軸方向に対する相対移動を規制する係合機構Ｗの一部が、外筒１０における先端１２と異なる他の部分の内周面に設けられるので、係合機構Ｗの構造によって、術者の視界から、切除手段２０の刃先２２が外筒１０によって隠され難くなるので、術者が適切な場所に刃先２２を当てることができ、術者が切除したい病変部位を確実に採取しやすくなるという優れた効果を奏する。 Here, the female screw structure 40 which is the engagement mechanism W is provided on the inner peripheral surface of the other portion of the outer cylinder 10 which is not the tip 12. Since a part of the engagement mechanism W that regulates relative movement in the axial direction between the outer cylinder 10 and the cutting means 20 is provided on the inner circumferential surface of the other part of the outer cylinder 10 different from the tip 12, The structure of the engagement mechanism W makes it difficult for the cutting edge 22 of the cutting means 20 to be hidden by the outer cylinder 10 from the field of view of the operator, so that the operator can apply the cutting edge 22 to an appropriate place. It has an excellent effect of making it easy to reliably collect the desired lesion site.

図１（Ｃ）には、切除手段２０の断面図を示す。切除手段２０は、全体として軸方向に長く延びる略円柱状であり、筒刃２４と把持部２５を備える。軸に垂直な断面は、略円形をなす。軸に垂直な断面の外径は、上述した外筒１０における、外筒中空部１６に挿入可能な大きさである。 FIG. 1C shows a cross-sectional view of the cutting means 20. As shown in FIG. The cutting means 20 has a substantially cylindrical shape extending in the axial direction as a whole, and includes a cylindrical blade 24 and a grip 25. The cross section perpendicular to the axis is substantially circular. The outer diameter of the cross section perpendicular to the axis is a size that can be inserted into the outer cylinder hollow portion 16 of the outer cylinder 10 described above.

筒刃２４の材質は、例えばステンレス鋼である。切除手段２０は、先端に環状の刃先２２を有し、刃先２２により皮膚を切除可能である。また切除手段２０は、環状の刃先２２から連続して軸方向に延びる中空構造３５を有する。切除手段２０における刃先２２の内径は、１ｍｍ以上、且つ、１０ｍｍ以下である。 The material of the cylindrical blade 24 is, for example, stainless steel. The cutting means 20 has an annular cutting edge 22 at its tip, and the cutting edge 22 can cut the skin. The cutting means 20 also has a hollow structure 35 extending axially continuously from the annular cutting edge 22. The inner diameter of the cutting edge 22 in the cutting means 20 is 1 mm or more and 10 mm or less.

筒刃２４は、接合部２６において、例えば接着剤等で円柱状の軸部２８に固定される。軸部２８の材質は、例えばポリプロピレンやポリカーボネートといった合成樹脂である。軸部２８の外周面には雄ネジ構造３０が設けられ、外筒中空部１６の内周面の雌ネジ構造４０と係合し、係合機構Ｗを構成する。軸部２８の筒刃２４と逆側端部には、連続して把持部２５が設けられる。把持部２５は、手指で操作しやすいように軸方向に垂直な断面が多角形であるか、またはローレット加工や溝加工がなされていることが望ましい。 The cylindrical blade 24 is fixed to the cylindrical shaft 28 at the joint 26 with, for example, an adhesive. The material of the shaft portion 28 is, for example, a synthetic resin such as polypropylene or polycarbonate. A male screw structure 30 is provided on the outer peripheral surface of the shaft portion 28 and engages with the female screw structure 40 on the inner peripheral surface of the outer cylinder hollow portion 16 to configure an engagement mechanism W. A grip 25 is provided continuously on the end of the shaft 28 opposite to the cylindrical blade 24. The grip 25 preferably has a polygonal cross section perpendicular to the axial direction, or is knurled or grooved so that it can be easily operated with fingers.

次に図２において、上記した第一実施形態に係る皮膚切除具１の動作を説明する。図２（Ａ）は、皮膚切除具１の使用方法を説明する説明図である。外筒１０の外筒中空部１６の中へ、切除手段２０は矢印向きに挿入されて皮膚切除具１が構成される。図示されていない外筒１０の内周面に設けられた雌ネジ構造４０と、切除手段２０の外周面に設けられた雄ネジ構造３０が、係合機構Ｗを構成する。 Next, in FIG. 2, the operation of the skin removal tool 1 according to the above-described first embodiment will be described. FIG. 2A is an explanatory view for explaining how to use the skin excision tool 1. The cutting means 20 is inserted into the outer hollow portion 16 of the outer cylinder 10 in the direction of the arrow to constitute the skin cutting tool 1. A female screw structure 40 provided on the inner circumferential surface of the outer cylinder 10 (not shown) and a male screw structure 30 provided on the outer circumferential surface of the cutting means 20 constitute an engagement mechanism W.

図２（Ｂ）には、皮膚切除具１の外筒１０が、切除手段２０の筒刃２４をすべて覆い隠している態様を示す。このような状態であれば、刃先２２が露出していないので安全に持ち運びができる。すなわち外筒１０がキャップの役割を果たすこととなる。 FIG. 2B shows a mode in which the outer cylinder 10 of the skin cutting tool 1 covers and hides all the cylindrical blades 24 of the cutting means 20. In such a state, since the blade tip 22 is not exposed, it can be carried safely. That is, the outer cylinder 10 plays a role of a cap.

ここで、切除手段２０の雄ネジ３０を、外筒１０の雌ネジ４０より柔らかい材料で形成することも考えられる。具体的には雄ネジ３０を合成樹脂で形成し、雌ネジ４０を金属等で形成する。そして雄ネジ３０における筒刃２４側近傍数ミリ間のねじ山のピッチを、雌ネジ４０のピッチよりもわずかに小さく形成することで、故意にネジの噛み合いを強くでき、係合の最初の段階で外筒１０と切除手段２０を仮に強めに固定することができる。こうすることで刃先２２が露出しにくくなり、外筒１０のキャップとしての機能が確実になって安全性が高まる。雌ネジ４０が雄ネジ３０よりも硬い材質でできているので、切除手段２０を外筒１０の奥に向かって挿入すべく、さらに相対回転させると、切除手段２０のねじ山が切れて、スムーズに切除手段２０の刃先２２が、外筒１０の先端面１４より外側に突出される。 Here, it is also conceivable to form the male screw 30 of the cutting means 20 with a softer material than the female screw 40 of the outer cylinder 10. Specifically, the male screw 30 is formed of a synthetic resin, and the female screw 40 is formed of a metal or the like. Then, by forming the thread pitch between several millimeters near the cylindrical blade 24 side of the external thread 30 slightly smaller than the pitch of the internal thread 40, the engagement of the threads can be intentionally strengthened, and the first stage of engagement can be achieved. Thus, the outer cylinder 10 and the cutting means 20 can be temporarily fixed firmly. This makes it difficult to expose the blade tip 22 and ensures the function of the outer cylinder 10 as a cap to enhance safety. Since the female screw 40 is made of a material harder than the male screw 30, when the cutting means 20 is further rotated in order to insert the cutting means 20 toward the back of the outer cylinder 10, the thread of the cutting means 20 is broken and smoothed. The cutting edge 22 of the cutting means 20 is projected to the outside from the tip surface 14 of the outer cylinder 10.

図２（Ｃ）には、皮膚切除具１の外筒１０の先端から、筒刃２４の刃先２２が長さＤ１だけ突出した態様を示す。術者は、外筒１０と切除手段２０を手指で相対回転させることで、Ｄ１の長さを変えることができるので、術者が必要とする厚みの皮膚組織標本を採取することができる。 FIG. 2C shows an aspect in which the cutting edge 22 of the cylindrical blade 24 protrudes from the tip of the outer cylinder 10 of the skin cutting tool 1 by a length D1. The surgeon can change the length of D1 by relatively rotating the outer cylinder 10 and the excision means 20 with his / her finger, so that the skin tissue specimen of the thickness required by the surgeon can be collected.

図２（Ｄ）には、皮膚切除具１の外筒１０の先端から筒刃２４の刃先２２が長さＤ２（Ｄ２＞Ｄ１）だけ突出した態様を示す。このように術者は、術中に外筒１０と切除手段２０を手指で相対回転させることで、自在に刃先２２と外筒１０先端面１４の距離を変えることで、術者がその場で必要と判断した厚みの皮膚組織標本を採取することができる。 FIG. 2D shows an aspect in which the cutting edge 22 of the cylindrical blade 24 protrudes from the tip of the outer cylinder 10 of the skin cutting tool 1 by a length D2 (D2> D1). In this manner, the surgeon needs the surgeon on the spot by freely rotating the outer cylinder 10 and the cutting means 20 relative to each other with the fingers during the operation to freely change the distance between the blade tip 22 and the outer cylinder 10 tip surface 14. It is possible to collect a skin tissue sample of the determined thickness.

なお外筒の先端面１４から刃先２２までの距離は。１ｍｍ以上、且つ、２０ｍｍ以下である。 The distance from the tip end surface 14 of the outer cylinder to the cutting edge 22 is. It is 1 mm or more and 20 mm or less.

図３（Ａ）には、本第一実施形態に係る皮膚切除具１の外筒１０についての変形実施例を示す。外筒１０の内周面には、係合機構Ｗを構成する雌ネジ４０が、外筒１０の軸方向で先端面１４と逆側にある後端部１３近傍に配置される。 FIG. 3A shows a modified embodiment of the outer cylinder 10 of the skin removal tool 1 according to the first embodiment. On the inner peripheral surface of the outer cylinder 10, a female screw 40 constituting the engagement mechanism W is disposed in the vicinity of the rear end portion 13 opposite to the front end surface 14 in the axial direction of the outer cylinder 10.

本発明の実施例に係る皮膚切除具１によれば、係合機構Ｗが外筒１０の後端部１３近傍に配置されるので、例えば外筒１０が透明な部材で製造されている場合に、切除手段２０の刃先２２が、外筒１０に設けられた係合機構Ｗの存在により見えにくくなることが避けられるという優れた効果を奏する。 According to the skin cutting tool 1 according to the embodiment of the present invention, since the engagement mechanism W is disposed in the vicinity of the rear end 13 of the outer cylinder 10, for example, when the outer cylinder 10 is manufactured of a transparent member. There is an excellent effect that it is avoided that the cutting edge 22 of the cutting means 20 becomes difficult to see due to the presence of the engagement mechanism W provided on the outer cylinder 10.

係合機構Ｗの少なくとも一部は、外筒１０について、外筒１０の長手方向の長さの１／２の位置Ｃよりも後端部１３側に配置される(図３（Ａ）参照)。 At least a part of the engagement mechanism W is disposed on the outer cylinder 10 closer to the rear end 13 than the position C which is half the length of the outer cylinder 10 in the longitudinal direction (see FIG. 3A). .

本発明の変形実施例に係る皮膚切除具１によれば、係合機構Ｗの少なくとも一部が外筒１０の長手方向の長さの１／２の位置Ｃよりも後端部１３側に配置されるので、例えば外筒１０が透明な部材で製造されている場合に、切除手段２０の刃先２２が、外筒１０に設けられた係合機構Ｗの存在により見えにくくなることが避けられるという優れた効果を奏する。 According to the skin cutting tool 1 according to the modified embodiment of the present invention, at least a part of the engagement mechanism W is disposed closer to the rear end 13 than the position C which is half the length of the outer cylinder 10 in the longitudinal direction. Therefore, for example, when the outer cylinder 10 is made of a transparent member, the cutting edge 22 of the cutting means 20 is prevented from being obscured by the presence of the engagement mechanism W provided on the outer cylinder 10 It plays an excellent effect.

また外筒１０は、連続して軸方向に延びる中空構造となり、内部に、切除手段２０を収容する外筒中空部１６を備え、外筒中空部１６の周面に形成され、外筒中空部１６の内部空間を外部に露呈可能な外筒開口部１５を少なくとも１つ備える(図３（Ａ）参照)。 Further, the outer cylinder 10 has a hollow structure continuously extending in the axial direction, is provided with an outer cylinder hollow portion 16 for accommodating the cutting means 20 inside, and is formed on the peripheral surface of the outer cylinder hollow portion 16 At least one outer cylinder opening 15 capable of exposing the internal space 16 to the outside is provided (see FIG. 3A).

図３（Ｂ）には、本第一実施形態に係る皮膚切除具１の切除手段２０についての変形実施例を示す。切除手段２０には、外筒１０の雌ネジ４０とともに係合機構Ｗを構成する雄ネジ３０が、筒刃２４と軸方向逆側に配置された把持部２５近傍に設けられる。 FIG. 3 (B) shows a modified embodiment of the cutting means 20 of the skin cutting device 1 according to the first embodiment. In the cutting means 20, an external thread 30 which constitutes the engagement mechanism W together with the internal thread 40 of the outer cylinder 10 is provided in the vicinity of the grip portion 25 which is disposed axially opposite to the cylindrical blade 24.

図３（Ｃ）には、本変形実施例に係る皮膚切除具１の説明図を示す。切除手段２０の刃先２２は、外筒１０の先端面１４より内側の奥まった位置に収容され、誤って術者が先端面１４に触れることがあっても、術者を傷つけにくい。係合機構Ｗである、雌ネジ４０と雄ネジ３０は係合し、外筒１０と切除手段２０は同軸上に保持される。 FIG. 3 (C) shows an explanatory view of the skin removal tool 1 according to this modified embodiment. The cutting edge 22 of the cutting means 20 is accommodated at a deep position inside the tip surface 14 of the outer cylinder 10, and even if the operator touches the tip surface 14 by mistake, the operator is not easily damaged. The female screw 40 and the male screw 30 which are the engagement mechanism W are engaged, and the outer cylinder 10 and the cutting means 20 are coaxially held.

図３（Ｄ）では、外筒１０と切除手段２０をさらに相対回転して、切除手段２０の刃先２２が、外筒１０の先端面１４から突出した態様を示す。術者はこのような状態で、刃先２２を、皮膚組織標本を作製したい部位に押し当てて把持部２５を回転させて処置を行う。 FIG. 3D shows an aspect in which the outer cylinder 10 and the cutting means 20 are further rotated relative to each other, and the cutting edge 22 of the cutting means 20 protrudes from the distal end surface 14 of the outer cylinder 10. In this state, the operator presses the blade edge 22 against the site where the skin tissue sample is to be produced and rotates the grip 25 to perform the treatment.

図３（Ｅ）には、本変形実施例に係る皮膚切除具１の外筒１０の外筒開口部１５に、指を当てて、切除手段２０を固定することで、皮膚組織Ｓの切除を容易にする使用方法を説明する説明図を示す。術者は手指Ｆの腹側等を外筒側開口部１５にあてて、外筒側開口部１５から接触可能な切除手段２０を固定することができる。 In FIG. 3E, a finger is placed on the outer cylinder opening 15 of the outer cylinder 10 of the skin cutting tool 1 according to this modified embodiment, and the cutting means 20 is fixed to cut the skin tissue S. FIG. 6 shows an explanatory view for explaining the method of use to facilitate. The operator can place the ventral side or the like of the finger F on the outer cylinder side opening 15 to fix the cutting means 20 that can be contacted from the outer cylinder side opening 15.

外筒１０の後端部１３近傍に係合機構Ｗが設けられる場合、実際の処置の際に、皮膚切除具１の先端近くを把持すると、外筒１０のみを固定することになり、切除手段２０の刃先２２を皮膚に押しつけて回転させようとしても、外筒１０のみが空回りして皮膚切除ができない可能性がある。本発明の実施例に係る皮膚切除具１によれば、外筒１０の周面に設けられて、切除手段２０を収容する外筒中空部１６の内部空間を外部に露呈可能な外筒開口部１５を通じて、手指で切除手段２０を押さえることができるので、切除手段２０を手指で固定した状態で刃先２２を回転させることができるという極めて優れた効果を奏する。 When the engagement mechanism W is provided in the vicinity of the rear end portion 13 of the outer cylinder 10, when the tip of the skin cutting tool 1 is gripped in actual treatment, only the outer cylinder 10 is fixed, and the cutting means Even if the 20 cutting edges 22 are pressed against the skin and rotated, there is a possibility that only the outer cylinder 10 idles and skin removal can not be performed. According to the skin cutting tool 1 of the embodiment of the present invention, the outer cylinder opening portion provided on the circumferential surface of the outer cylinder 10 and capable of exposing the internal space of the outer cylinder hollow portion 16 accommodating the cutting means 20 to the outside Since the cutting means 20 can be pressed with the fingers 15 through 15, the cutting edge 22 can be rotated in a state where the cutting means 20 is fixed with the fingers.

図４（Ａ）には、皮膚切除具１に設けられた目盛りＭを示す。目盛りＭは切除手段２０の軸部２８に設けられることが望ましい。もちろん切除手段２０の筒刃２４に設けられても良い。図４（Ａ）において、刃先２２と、外筒１０の先端面１４は同一平面上に位置している。これを刃先２２と先端面１４の間の長さがゼロの地点と定義する。さて目盛りＭは、例えば１ｍｍごとに、軸部２８上に印字される（図４（Ａ）参照）。術者が、外筒１０と切除手段２０を相対回転させると、係合機構Ｗであるネジ構造が外筒１０と切除手段２０の相対位置を変化させられる（図４（Ｂ）参照）。例えば２ｍｍの目盛りまで外筒１０の端部が進むと、刃先２２と先端面１４の間の長さＮは２ｍｍとなる。このように目盛りＭを設けることで術者は、術中に正確な厚みの皮膚組織標本を採取することができる。 FIG. 4A shows a scale M provided on the skin removal tool 1. Preferably, the scale M is provided on the shaft 28 of the cutting means 20. Of course, it may be provided on the cylindrical blade 24 of the cutting means 20. In FIG. 4A, the blade edge 22 and the tip end surface 14 of the outer cylinder 10 are located on the same plane. This is defined as a point where the length between the cutting edge 22 and the tip surface 14 is zero. The scale M is printed on the shaft portion 28 every 1 mm, for example (see FIG. 4A). When the operator relatively rotates the outer cylinder 10 and the cutting means 20, the screw structure as the engagement mechanism W changes the relative position of the outer cylinder 10 and the cutting means 20 (see FIG. 4B). For example, when the end of the outer cylinder 10 advances to a scale of 2 mm, the length N between the cutting edge 22 and the tip surface 14 is 2 mm. By providing the scale M in this manner, the operator can collect a skin tissue sample of the correct thickness during surgery.

本第一実施形態では、目盛りＭは切除手段２０の外周面に設けるが、目盛りは外筒１０に設けられても良い。すなわち切除手段２０、又は、外筒１０には、外筒の先端面１４から刃先２２までの距離を表す目盛りＭが設けられている。 In the first embodiment, the scale M is provided on the outer peripheral surface of the cutting means 20, but the scale may be provided on the outer cylinder 10. That is, the cutting means 20 or the outer cylinder 10 is provided with a scale M indicating the distance from the tip end surface 14 of the outer cylinder to the cutting edge 22.

本第一実施形態に係る皮膚切除具１によれば、皮膚切除具１が外筒１０と切除手段２０という二つの部品で構成されており、外筒１０と切除手段２０の間に互いの軸方向に対する相対移動を規制する係合機構Ｗが設けられているので、外筒１０の先端面１４から突出した刃先２２の長さを自在に調整することができ、術者が望む様々な厚みの皮膚組織標本を、容易に採取することができるという極めて優れた効果を奏する。 According to the skin removal tool 1 in the first embodiment, the skin removal tool 1 is composed of two parts, the outer cylinder 10 and the removal means 20, and the axes of the two are separated between the outer tube 10 and the removal means 20. Since the engagement mechanism W for restricting relative movement with respect to the direction is provided, the length of the cutting edge 22 protruding from the tip end surface 14 of the outer cylinder 10 can be freely adjusted, and various thicknesses desired by the operator can be obtained. The skin tissue sample has an extremely excellent effect of being easily collected.

本第一実施形態に係る皮膚切除具１によれば、外筒１０と切除手段２０の間にある互いの軸方向に対する相対移動を規制する係合機構Ｗが、ネジ構造であるので、術者は外筒１０と切除手段２０を相対回動させることで、容易に外筒の先端面１４から突出した刃先２２の長さを自在に調整することができ、術者が望む様々な厚みの皮膚組織標本を、容易に採取することができるという極めて優れた効果を奏する。 According to the skin resection tool 1 according to the first embodiment, since the engagement mechanism W between the outer cylinder 10 and the cutting means 20 for restricting relative movement with respect to the axial direction has a screw structure, the operator The relative length of the cutting edge 22 protruding from the tip end surface 14 of the outer cylinder can be easily adjusted by rotating the outer cylinder 10 and the cutting means 20 relative to each other, and the skin of various thicknesses desired by the operator There is an extremely excellent effect that tissue samples can be easily collected.

本第一実施形態に係る皮膚切除具１によれば、皮膚切除具１を手に持って処置を行う場合に、術者の視界から、切除手段２０の刃先２２が外筒１０によって隠され難いので、術者が適切な場所に刃先２２を当てることができ、術者が切除したい病変部位を確実に採取しやすいという極めて優れた効果を奏する。 According to the skin removal tool 1 according to the first embodiment, when the skin removal tool 1 is held by hand, the cutting edge 22 of the removal means 20 is less likely to be hidden by the outer cylinder 10 from the view of the operator Therefore, the operator can apply the cutting edge 22 to an appropriate place, and it is extremely effective in that the operator can easily pick up a lesion site that he / she wants to remove.

本第一実施形態に係る皮膚切除具１によれば、外筒１０と切除手段２０の間にある互いの軸方向に対する相対移動を規制する係合機構Ｗの一部が、外筒１０における他の部分の内周面に設けられるので、係合機構Ｗの構造によって、術者の視界から、切除手段２０の刃先２２が外筒１０によって隠され難くなるので、術者が適切な場所に刃先２２を当てることができ、術者が切除したい病変部位を確実に採取しやすくなるという優れた効果を奏する。 According to the skin resection tool 1 according to the first embodiment, a part of the engagement mechanism W between the outer cylinder 10 and the cutting means 20 for restricting relative movement with respect to each other in the axial direction is the other one in the outer cylinder 10 The cutting edge 22 of the cutting means 20 is less likely to be concealed by the outer cylinder 10 from the view of the operator due to the structure of the engagement mechanism W, so that the operator can cut the cutting edge at an appropriate place. It is possible to apply 22 and has the excellent effect of making it easy for the operator to reliably collect the lesion site that he / she wants to remove.

本第一実施形態に係る皮膚切除具１によれば、外筒１０の後端と比較して切除手段２０の後端が後方に突出しているので、突出した切除手段２０の後端を術者が把持することができ、切除手段２０の刃先２２を適切な力で皮膚に押しつけて、切除が可能になるという優れた効果を奏する。 According to the skin resection tool 1 according to the first embodiment, since the rear end of the cutting means 20 protrudes rearward as compared with the rear end of the outer cylinder 10, the operator can perform the rear end of the protruding cutting means 20 There is an excellent effect of being able to grip and pressing the cutting edge 22 of the cutting means 20 against the skin with an appropriate force to enable cutting.

本第一実施形態に係る皮膚切除具１によれば、外筒１０の先端面１４から突出した刃先２２の長さを、術中に正確に調整できるので、術者が所望する適切な厚みの皮膚組織標本を容易に採取できるという優れた効果を奏する。 According to the skin resection tool 1 according to the first embodiment, since the length of the cutting edge 22 protruding from the tip end surface 14 of the outer cylinder 10 can be accurately adjusted during surgery, the skin with an appropriate thickness desired by the operator It has an excellent effect that tissue samples can be easily collected.

本第一実施形態に係る皮膚切除具１によれば、刃先２２の内径が１ｍｍ以上、且つ、１０ｍｍ以下なので、多くの病変部について適切な範囲の皮膚組織標本を採取できるという優れた効果を奏する。 According to the skin resection tool 1 according to the first embodiment, since the inside diameter of the blade tip 22 is 1 mm or more and 10 mm or less, an excellent effect is obtained that skin tissue samples in an appropriate range can be collected for many diseased parts. .

本第一実施形態に係る皮膚切除具１によれば、皮膚に当たって深さを決める外筒１０の先端面１４から刃先２２までの距離が１ｍｍ以上、且つ、２０ｍｍ以下なので、多くの病変部について適切な深さの組織標本を容易に採取できるという効果を奏する。 According to the skin resection tool 1 according to the first embodiment, the distance from the tip surface 14 of the outer cylinder 10 which determines the depth to the skin to the blade edge 22 is 1 mm or more and 20 mm or less. There is an effect that tissue samples of various depths can be easily collected.

本第一実施形態に係る皮膚切除具１によれば、外筒１０の規格はそのままに、異なった大きさの刃先２２の内径を持つ切除手段２０や、外筒１０の先端面１４から刃先２２までの距離が異なる切除手段２０を使用できる。したがって採取できる厚みを調整可能な皮膚切除具を予め用意したい場合に、使用する医療関係者は、必要であれば複数の適切な切除手段の他、共通する一種類の外筒１０を購入するだけで済み、費用面で大幅な節約をすることができるという優れた効果を奏する。 According to the skin cutting tool 1 according to the first embodiment, the cutting means 20 having the inner diameter of the cutting edge 22 having different sizes and the cutting edge 22 from the tip surface 14 of the outer cylinder 10 while maintaining the standard of the outer cylinder 10 It is possible to use cutting means 20 with different distances. Therefore, when it is desired to prepare in advance a skin cutting tool whose thickness can be adjusted, medical personnel to use need only purchase one common type of outer cylinder 10 in addition to a plurality of appropriate cutting means if necessary. It has the excellent effect of being able to save a lot in terms of cost.

図５（Ａ）には、本発明の第二実施形態に係る皮膚切除具１の外筒１０の断面図を示す。外筒中空部１６には、後述する切除手段２０が挿入される。外筒１０の内周面には、スリット５０が設けられる（図５（Ａ）破線部）。スリット５０は外筒中空部１６の周面に形成され、中空部の内部空間を外部に露呈可能な開口となっていることが望ましい。スリット５０は、一つの直線状のガイド５１と、そこから垂直方向に延びる複数の枝路５２を備える。 FIG. 5A shows a cross-sectional view of the outer cylinder 10 of the skin cutting tool 1 according to the second embodiment of the present invention. In the outer cylinder hollow portion 16, a cutting means 20 described later is inserted. A slit 50 is provided on the inner peripheral surface of the outer cylinder 10 (the broken line in FIG. 5A). It is desirable that the slit 50 be formed on the circumferential surface of the outer cylinder hollow portion 16 and be an opening that can expose the internal space of the hollow portion to the outside. The slit 50 comprises a straight guide 51 and a plurality of branches 52 extending perpendicularly therefrom.

図５（Ｂ）は、切除手段２０の説明図である。切除手段２０の軸部２８には、外周面と垂直方向に突出する凸部６０を備える。凸部６０の直径は、上述した外筒１０におけるスリット５０のガイド５１、及び、枝路５２に入る大きさである。切除手段２０を外筒中空部１６に挿入する際、凸部６０はガイド５１と枝路５２に沿って、自在にスリット５０内を移動できる。 FIG. 5 (B) is an explanatory view of the cutting means 20. As shown in FIG. The shaft portion 28 of the cutting means 20 is provided with a convex portion 60 which protrudes in the direction perpendicular to the outer peripheral surface. The diameter of the convex portion 60 is a size that enters the guide 51 of the slit 50 in the outer cylinder 10 described above and the branch passage 52. When the cutting means 20 is inserted into the outer cylinder hollow portion 16, the convex portion 60 can freely move in the slit 50 along the guide 51 and the branch passage 52.

図５（Ｃ）には、係合機構Ｗが多段係合部Ｖである皮膚切除具１の動作を示す。切除手段２０を外筒１０に挿入し、切除手段２０の凸部６０を、外筒１０のスリット５０におけるガイド５１に沿って移動させる。図５（Ｃ）では軸方向刃先２２と逆側端部から数えて２番目の枝路５２に凸部６０が嵌まるように、切除手段２０を外筒１０内に挿入し、外筒１０と切除手段２０を相対回転させる。この動作により、皮膚切除具１の外筒１０の先端面１４から筒刃２４の刃先２２が、長さＤ３だけ突出した状態になる（図５（Ｄ）参照）。 FIG. 5C shows the operation of the skin cutting tool 1 in which the engagement mechanism W is the multistage engagement portion V. The cutting means 20 is inserted into the outer cylinder 10, and the convex portion 60 of the cutting means 20 is moved along the guide 51 of the slit 50 of the outer cylinder 10. In FIG. 5 (C), the cutting means 20 is inserted into the outer cylinder 10 so that the convex portion 60 is fitted in the second branch passage 52 counting from the axial direction cutting edge 22 and the opposite side end. The cutting means 20 is relatively rotated. By this operation, the cutting edge 22 of the cylindrical blade 24 protrudes from the tip end surface 14 of the outer cylinder 10 of the skin cutting tool 1 by a length D3 (see FIG. 5D).

図５（Ｅ）と図５（Ｆ）では、切除手段２０を外筒１０内にさらに奥まで挿入して、皮膚切除具１の外筒１０の先端面１４から筒刃２４の刃先２２が長さＤ４（Ｄ４＞Ｄ３）だけ突出した状態とする動作を示す。 In FIG. 5 (E) and FIG. 5 (F), the cutting means 20 is inserted further into the outer cylinder 10, and the cutting edge 22 of the cylindrical blade 24 is long from the tip surface 14 of the outer cylinder 10 of the skin cutting tool 1. The operation | movement made into the state which protruded only D4 (D4> D3) is shown.

本第二実施形態において、係合機構Ｗである多段係合部Ｖは、外筒１０にスリット５０を設け、切除手段２０にスリット５０に嵌まる凸部６０を設けて実現したが、逆に外筒１０に凸部を設け、切除手段２０にスリット５０を設けて実現しても良い。 In the second embodiment, the multistage engagement portion V which is the engagement mechanism W is realized by providing the slit 50 in the outer cylinder 10 and providing the convex portion 60 to be fitted in the slit 50 in the cutting means 20, but conversely A convex portion may be provided on the outer cylinder 10, and the slit 50 may be provided on the cutting means 20.

すなわち係合機構Ｗは、外筒１０又は切除手段２０の一方に形成され、軸方向に複数の凹部又はスリットとなる多段係合部Ｖと、外筒１０又は切除手段２０の他方に形成され、多段係合部Ｖと係合可能な凸部とを有することで実現される That is, the engagement mechanism W is formed in one of the outer cylinder 10 or the cutting means 20, and is formed in the other of the outer cylinder 10 or the cutting means 20, and a multistage engaging portion V which is a plurality of recesses or slits in the axial direction. It is realized by having a multistage engagement portion V and a convex portion which can be engaged.

また係合機構Ｗは、外筒１０、及び、切除手段２０の周方向の相対回転、或いは、外筒１０又は切除手段２０に弾性変形により、複数の凹部又はスリットから特定の凹部又はスリットを選択して凸部と係合させることで実現される。 Further, the engagement mechanism W selects a specific recess or slit from a plurality of recesses or slits by relative rotation of the outer cylinder 10 and the cutting means 20 in the circumferential direction, or by elastic deformation of the outer cylinder 10 or the cutting means 20. It is realized by engaging with the convex portion.

本第二実施形態に係る皮膚切除具１によれば、外筒１０と切除手段２０の間にある互いの軸方向に対する相対移動を規制する係合機構Ｗが、相対移動距離をいくつかの離散的な値に規定できる多段係合部Ｖであるため、予め定められた複数の厚みから選択しての皮膚標本を容易に採取することができるという優れた効果を奏する。 According to the skin resection tool 1 according to the second embodiment, the engagement mechanism W between the outer cylinder 10 and the cutting means 20 for restricting the relative movement with respect to the axial direction has a relative movement distance of several discrete Since the multistage engaging portion V which can be defined to have an appropriate value, it is possible to obtain an excellent effect that skin specimens selected from a plurality of predetermined thicknesses can be easily collected.

本第二実施形態に係る皮膚切除具１によれば、外筒１０と切除手段２０の間にある互いの軸方向に対する相対移動を規制する係合機構Ｗが、外筒及び切除手段の周方向の相対回転、或いは、外筒又は切除手段に弾性変形により係合させるものであることから、術者の指の力で容易に相対移動距離を選択でき、術中に簡単に予め定められた複数の厚みから選択しての皮膚標本を容易に採取することができるという優れた効果を奏する。 According to the skin resection tool 1 according to the second embodiment, the engagement mechanism W between the outer cylinder 10 and the cutting means 20 for restricting relative movement with respect to the axial direction is the circumferential direction of the outer cylinder and the cutting means The relative movement distance of the operator's finger can be easily selected by the force of the finger of the operator, and a plurality of predetermined predetermined movement methods can be easily determined during operation. This has the excellent effect of being able to easily collect skin specimens selected from the thickness.

図６（Ａ）は、本発明の第三実施形態に係る皮膚切除具１における切除具２０の筒刃２４側面に開口７０がある態様を説明する説明図である。環状の筒刃２４は切除手段２０の端部に設けられ、軸部２８に固定されている。筒刃２４は、軸部２８と逆側に刃付けがされて、周方向に回転させることで刃先２２が皮膚を切開する。筒刃２４は、略円筒状であり、切除手段中空部３５を備える。採取された皮膚組織標本８０は切除手段中空部３５に保持される（図６（Ｂ）参照）。筒刃２４は、さらに開口７０を有する。すなわち、切除手段２０の筒刃２４は環状の刃先２２から連続して軸方向に延びる中空構造３５を備え、切除手段中空部３５の内部に切除した皮膚を収容可能であり、切除手段中空部３５の周面に形成され、切除手段中空部３５の内部空間を外部に露呈可能な開口７０を備える。 FIG. 6A is an explanatory view illustrating an aspect in which the opening 70 is provided on the side of the cylindrical blade 24 of the cutting tool 20 in the skin cutting tool 1 according to the third embodiment of the present invention. An annular cylindrical blade 24 is provided at the end of the cutting means 20 and is fixed to the shaft 28. The cylindrical blade 24 is bladed on the side opposite to the shaft portion 28, and the blade edge 22 incises the skin by rotating it in the circumferential direction. The cylindrical blade 24 is substantially cylindrical and includes a cutting means hollow portion 35. The collected skin tissue sample 80 is held in the cutting means hollow portion 35 (see FIG. 6 (B)). The cylindrical blade 24 further has an opening 70. That is, the cylindrical blade 24 of the cutting means 20 is provided with a hollow structure 35 continuously extending in the axial direction from the annular cutting edge 22, and the cut skin can be accommodated inside the cutting means hollow portion 35. And an opening 70 which can be exposed to the outside of the internal space of the cutting means hollow portion 35.

図６（Ｃ）では、筒刃２４の切除手段中空部３５から皮膚組織標本８０を取り出す動作を説明する。術者はピンセットＰの先端を開口７０に差し込んで皮膚組織標本８０を筒刃２４の刃先２２向きに押し出すことで、容易に皮膚組織標本８０を切除手段中空部３５から採取することができる。 In FIG. 6C, an operation of taking out the skin tissue sample 80 from the cutting means hollow portion 35 of the cylindrical blade 24 will be described. The operator inserts the tip of the tweezers P into the opening 70 and pushes the skin tissue sample 80 toward the cutting edge 22 of the cylindrical blade 24 so that the skin tissue sample 80 can be easily collected from the cutting means hollow portion 35.

本第三実施形態に係る皮膚切除具１によれば、切除手段２０が環状の刃先２２から連続して軸方向に延びる切除手段中空部３５を有するので、切除手段中空部３５に皮膚組織を容易にかつ組織の形状を保ったまま保持することができるという効果を奏する。また切除手段中空部３５の周面に形成され、切除手段中空部３５の内部空間を外部に露呈可能な開口７０を備えるので、開口７０からピンセットＰなどで採取した皮膚組織を刃先方向に押し出すことが可能であり、皮膚組織標本を容易にかつ組織の形状を保ったまま、切除手段中空部３５から取り出せるという優れた効果を奏する。 According to the skin cutting tool 1 of the third embodiment, since the cutting means 20 has the cutting means hollow portion 35 continuously extending in the axial direction from the annular cutting edge 22, the skin tissue can be easily cut in the cutting means hollow portion 35. In addition, it has an effect that it can be held while maintaining the shape of the tissue. Further, since the opening 70 is formed on the circumferential surface of the cutting means hollow portion 35 and can expose the internal space of the cutting means hollow portion 35 to the outside, pushing the skin tissue collected from the opening 70 with the tweezers P in the blade direction There is an excellent effect that the skin tissue specimen can be easily removed from the cutting means hollow portion 35 while maintaining the shape of the tissue.

尚、本発明の皮膚切除具は、上記した実施の形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。 The skin removal tool of the present invention is not limited to the above-described embodiment, and various changes can of course be added without departing from the scope of the present invention.

１皮膚切除具
１０外筒
１２先端
１３後端部
１４先端面
１５外筒開口部
１６外筒中空部
２０切除手段
２２刃先
２４筒刃
２５把持部
２６接合部
２８軸部
３０雄ネジ構造
３５切除手段中空部
４０雌ネジ構造
５０スリット
６０凸部
７０開口
８０皮膚組織標本
１００生検トレパン
１１０アダプタ
１２０筒刃部
１５０把持部
１５５溝部
Ｆ手指
Ｍ目盛り
Ｐピンセット
Ｓ皮膚
Ｖ多段係合部
Ｗ係合機構
Ｘ皮膚組織 DESCRIPTION OF SYMBOLS 1 skin resection tool 10 outer cylinder 12 tip 13 back end 14 tip surface 15 outer cylinder opening 16 outer cylinder hollow portion 20 cutting means 22 cutting edge 24 cylindrical blade 25 grip portion 26 joint portion 28 shaft portion 30 male screw structure 35 cutting means Hollow part 40 Female screw structure 50 Slit 60 Convex part 70 Opening 80 Skin tissue sample 100 Biopsy Trepan 110 Adapter 120 Tubular blade part 150 Holding part 155 Groove part F Finger M scale P tweezers S Skin V Multi stage engagement part W engagement mechanism X Skin tissue

Claims

先端に環状の刃先を有し、該刃先により皮膚を切除可能な軸状の切除手段と、
前記切除手段が内部に挿入されて、該切除手段を軸方向に案内可能な筒状の外筒と、を備え、
前記外筒は、連続して軸方向に延びる中空構造となり、内部に、前記切除手段を収容する外筒中空部を備え、
前記外筒中空部の周面に形成され、前記外筒中空部の内部空間を外部に露呈可能な外筒開口部を少なくとも１つ備え、
前記外筒と前記切除手段の間には、前記外筒と前記切除手段の軸方向の相対移動を規制する係合機構が設けられ、
前記外筒の先端面と前記刃先までの距離によって、前記皮膚の切除深さが調整可能とされることを特徴とする皮膚切除具。 An axial cutting means having an annular cutting edge at its tip, which can cut the skin by the cutting edge;
And a cylindrical outer cylinder capable of axially guiding the cutting means with the cutting means inserted therein;
The outer cylinder has a hollow structure extending continuously in the axial direction, and is internally provided with an outer cylinder hollow portion for housing the cutting means,
At least one outer cylinder opening which is formed on the peripheral surface of the outer cylinder hollow part and which can expose the internal space of the outer cylinder hollow part to the outside,
An engagement mechanism is provided between the outer cylinder and the cutting means for restricting relative movement between the outer cylinder and the cutting means in the axial direction,
A skin cutting tool characterized in that the cutting depth of the skin can be adjusted by the distance between the tip end surface of the outer cylinder and the blade edge.

前記係合機構は、
前記外筒については、前記外筒の軸方向で前記先端面と逆側にある後端部近傍に配置される、
ことを特徴とする請求項１に記載の皮膚切除具。 The engagement mechanism is
The outer cylinder is disposed in the vicinity of a rear end portion opposite to the tip end surface in the axial direction of the outer cylinder.
The skin removal tool according to claim 1, characterized in that.

前記係合機構の少なくとも一部は、
前記外筒について、前記外筒の長手方向の長さの１／２の位置よりも前記後端部側に配置されることを特徴とする請求項２に記載の皮膚切除具。 At least a portion of the engagement mechanism is
The skin cutting tool according to claim 2, wherein the outer cylinder is disposed closer to the rear end than the position of half the length of the outer cylinder in the longitudinal direction.

前記係合機構はネジ構造であり、前記外筒と前記切除手段を相対回動させることで、前記先端面と前記刃先までの距離が可変となることを特徴とする、
請求項１乃至３のいずれかに記載の皮膚切除具。 The engagement mechanism is a screw structure, and by rotating the outer cylinder and the cutting means relative to each other, the distance between the tip surface and the cutting edge can be varied.
The skin removal tool according to any one of claims 1 to 3 .

前記係合機構は、
前記外筒又は前記切除手段の一方に形成され、軸方向に複数の凹凸部又はスリットとなる多段係合部と、
前記外筒又は前記切除手段の他方に形成され、前記多段係合部と係合可能な凹凸部と、を有することを特徴とする、
請求項１乃至４のいずれかに記載の皮膚切除具。 The engagement mechanism is
A multistage engaging portion formed on one of the outer cylinder and the cutting means, which forms a plurality of concavo-convex portions or slits in the axial direction;
It is formed on the other of the outer cylinder or the cutting means, and has a concavo-convex part engageable with the multistage engagement part.
The skin removal tool according to any one of claims 1 to 4 .

前記係合機構は、前記外筒及び前記切除手段の周方向の相対回転により、前記複数の凹凸部又はスリットから特定の凹凸部又はスリットを選択して前記多段係合部と係合可能な凹凸部と係合させることを特徴とする、
請求項５に記載の皮膚切除具。 The engagement mechanism, engaged with the outer cylinder and the circumferential More direction relative Rotation, select a specific concave protrusion or slit from said plurality of uneven portions or slits the multi-stage engagement portion of said excision means Engaging with possible irregularities,
The skin removal tool according to claim 5 .

前記外筒における少なくとも先端近傍の外径が、他の部分よりも細く設定されることを特徴とする、
請求項１乃至６のいずれかに記載の皮膚切除具。 The outer diameter of at least the tip end of the outer cylinder is set to be smaller than other portions,
The skin removal tool according to any one of claims 1 to 6 .

前記係合機構の一部は、前記外筒における前記他の部分の内周面に設けられることを特徴とする、
請求項７に記載の皮膚切除具。 A part of the engagement mechanism is provided on an inner peripheral surface of the other part of the outer cylinder,
The skin removal tool according to claim 7 .

前記外筒の後端と比較して前記切除手段の後端が後方に突出すると共に、前記外筒の後端と前記切除手段が互いに接近していることを特徴とする、
請求項１乃至８のいずれかに記載の皮膚切除具。 The rear end of the cutting means protrudes rearward as compared with the rear end of the outer cylinder, and the rear end of the outer cylinder and the cutting means are close to each other.
The skin removal tool according to any one of claims 1 to 8 .

前記切除手段は、
前記環状の刃先から連続して軸方向に延びる中空構造となり、内部に、切除した皮膚を収容可能な中空部と、
前記中空部の周面に形成され、該中空部の内部空間を外部に露呈可能な開口と、を備えることを特徴とする、
請求項１乃至９のいずれかに記載の皮膚切除具。 The cutting means is
A hollow structure extending axially continuously from the annular cutting edge, and having a hollow portion capable of containing the excised skin therein;
And an opening formed on the circumferential surface of the hollow portion and capable of exposing the internal space of the hollow portion to the outside.
The skin removal tool according to any one of claims 1 to 9 .

前記切除手段又は前記外筒には、前記外筒の前記先端から前記刃先までの距離を表す目盛りが設けられていることを特徴とする、
請求項１乃至１０のいずれかに記載の皮膚切除具。 The cutting means or the outer cylinder is provided with a scale indicating a distance from the tip of the outer cylinder to the blade edge.
The skin removal tool according to any one of claims 1 to 10 .

前記切除手段における前記刃先の内径が１ｍｍ以上、且つ、１０ｍｍ以下であることを特徴とする、
請求項１乃至１１のいずれかに記載の皮膚切除具。 The internal diameter of the cutting edge in the cutting means is 1 mm or more and 10 mm or less.
The skin removal tool according to any one of claims 1 to 11 .

前記外筒の先端面と前記刃先までの距離が１ｍｍ以上、且つ、２０ｍｍ以下であることを特徴とする、
請求項１乃至１２のいずれかに記載の皮膚切除具。 A distance between a tip end surface of the outer cylinder and the cutting edge is 1 mm or more and 20 mm or less.
The skin removal tool according to any one of claims 1 to 12 .

前記切除手段は、交換可能であることを特徴とする、
請求項１乃至１３のいずれかに記載の皮膚切除具。 The excision means is replaceable,
The skin removal tool according to any one of claims 1 to 13 .

先端に環状の刃先を有する筒刃及び該筒刃を同軸状に保持する軸部を備えて、該刃先により皮膚を切除可能な軸状の切除手段と、  And a shaft-shaped cutting means capable of cutting the skin by the cutting edge, comprising: a cylindrical blade having an annular cutting edge at a tip thereof; and a shaft portion coaxially holding the cylindrical blade.
前記切除手段が内部に挿入されて、該切除手段を軸方向に案内可能な筒状の外筒と、を備え、  And a cylindrical outer cylinder capable of axially guiding the cutting means with the cutting means inserted therein;
前記切除手段における前記筒刃と前記軸部が一体に構成されることで、前記筒刃と前記外筒が相対回転するようになっており、  The cylindrical blade and the shaft portion in the cutting means are integrally configured, so that the cylindrical blade and the outer cylinder rotate relative to each other,
前記切除手段の前記軸部には、前記外筒の先端から前記刃先までの複数段階の距離を表す目盛りが設けられ、  The shaft portion of the cutting means is provided with a scale representing a plurality of steps of distance from the tip of the outer cylinder to the cutting edge;
前記複数段階の目盛りにおける前記刃先側には、前記外筒の先端から前記刃先までの距離が短いことを示す数字が示され、且つ、前記複数段階の目盛りにおける前記刃先と反対側には、前記外筒の先端から前記刃先までの距離が長いことを示す数字が示され、  A number indicating that the distance from the tip of the outer cylinder to the cutting edge is short is shown on the cutting edge side of the multi-stage scale, and on the opposite side of the multi-stage scale with the cutting edge A number is shown to indicate that the distance from the tip of the outer cylinder to the cutting edge is long,
前記外筒と前記切除手段の間には、前記外筒と前記切除手段の軸方向の相対移動を規制する係合機構が設けられ、  An engagement mechanism is provided between the outer cylinder and the cutting means for restricting relative movement between the outer cylinder and the cutting means in the axial direction,
前記外筒の先端面と前記刃先までの距離によって、前記皮膚の切除深さが調整可能とされることを特徴とする皮膚切除具。  A skin cutting tool characterized in that the cutting depth of the skin can be adjusted by the distance between the tip end surface of the outer cylinder and the blade edge.