JP6884599B2 - Medical knife with cover - Google Patents

Medical knife with cover Download PDF

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JP6884599B2
JP6884599B2 JP2017039111A JP2017039111A JP6884599B2 JP 6884599 B2 JP6884599 B2 JP 6884599B2 JP 2017039111 A JP2017039111 A JP 2017039111A JP 2017039111 A JP2017039111 A JP 2017039111A JP 6884599 B2 JP6884599 B2 JP 6884599B2
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cover
blade
handle
right sides
medical
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JP2018143321A (en
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昌宏 遠藤
昌宏 遠藤
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Kaijirushi Hamono Center KK
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Kaijirushi Hamono Center KK
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Description

本発明は刃体を保護し得るカバーを備えた手術用メスなどの医療用刃物に関するものである。 The present invention relates to a medical blade such as a surgical scalpel provided with a cover capable of protecting the blade.

従来、下記の特許文献1などにより開示された手術用メスなどの医療用刃物は、把持部の前端部からカバー支持部を延設したハンドルと、このカバー支持部の前端部に取り付けた刃体を収容し得るカバーとを備えている。このカバーは、カバー支持部の外側に被せられ、カバー支持部に対しカバー操作部により前後方向へ移動可能に支持され、カバー支持部の前端部から前方へ突出して刃体を収容し得る刃体不使用位置と、カバー支持部の前端部から後方へ退避する刃体使用可能位置とを取る。その刃体使用可能位置では、カバー支持部の前端部の刃体がカバーから前方へ突出して露出する。 Conventionally, medical blades such as surgical scalpels disclosed in Patent Document 1 and the like below have a handle having a cover support extending from the front end of the grip and a blade attached to the front end of the cover support. It is equipped with a cover that can accommodate. This cover is placed on the outside of the cover support portion, is supported by the cover operating portion so as to be movable in the front-rear direction with respect to the cover support portion, and is a blade body capable of projecting forward from the front end portion of the cover support portion to accommodate the blade body. The unused position and the usable position of the blade that retracts backward from the front end of the cover support are taken. At the blade usable position, the blade at the front end of the cover support portion protrudes forward from the cover and is exposed.

特許第4230775号公報Japanese Patent No. 4230775

従来の手術用メスなどの医療用刃物を両手で握って使用する場合には、通常、一方の手指でハンドルの把持部を持つとともに、他方の手指をカバー操作部に当てがって、カバーを前記刃体不使用位置と刃体使用可能位置とに移動させることができる。また、医療用刃物を片手で握って使用する場合には、ハンドルの把持部を持った手指をカバー操作部に当てがって、カバーを前記刃体不使用位置と刃体使用可能位置とに移動させることができる。片手で使用する場合、カバーを前方へ移動させた刃体不使用位置では、把持部を持った手指がカバー操作部から離れ易いために不安定となり、把持部を持った手指をカバーの移動に伴いカバー支持部側に伸ばしてカバー操作部に当てがい易くする必要がある。また、ハンドルのカバー支持部とカバーとの間に緩みがあると、執刀時等にカバーを手指で掴んで使用する場合、その緩みによる悪影響を受けて使い勝手が悪くなるおそれがあった。 When using a medical blade such as a conventional surgical scalpel by holding it with both hands, usually one finger holds the grip of the handle and the other finger touches the cover operation part to cover the cover. It can be moved to the position where the blade is not used and the position where the blade can be used. When the medical blade is used by gripping it with one hand, the finger holding the grip portion of the handle is applied to the cover operation portion, and the cover is set to the blade non-use position and the blade usable position. Can be moved. When using with one hand, in the blade non-use position where the cover is moved forward, the finger holding the grip is easily separated from the cover operation part, which makes it unstable, and the finger holding the grip is used to move the cover. Therefore, it is necessary to extend it toward the cover support portion so that it can be easily applied to the cover operation portion. Further, if there is a looseness between the cover support portion of the handle and the cover, when the cover is grasped and used by fingers at the time of operation or the like, the looseness may adversely affect the usability.

この発明は、手術用メスなどのカバー付き医療用刃物を特に片手で握って使用する場合にカバーの移動操作を行い易くするとともに執刀時等の使い勝手を良くすることを目的としている。 An object of the present invention is to facilitate the movement operation of the cover and to improve the usability at the time of operation, especially when a medical blade with a cover such as a scalpel is gripped and used with one hand.

後記実施形態の図面(図1〜9)の符号を援用して本発明を説明する。
請求項1の発明にかかるカバー付き医療用刃物は、ハンドル(1)とそのハンドル(1)の頭部に取り付けた刃体(17)を保護し得るカバー(42)とを備えている。このカバー(42)は、ハンドル(1)の外側に被せられてハンドル(1)に対しハンドル(1)の長手方向に沿う前後方向(X)へ移動可能に支持され、刃体(17)を保護し得る刃体不使用位置(P)と、刃体(17)をカバー(42)から露出し得る刃体使用可能位置(Q)とを取り、前後方向(X)に対し直交する左右方向(Y)の両側の側部(45,46)を有している。このカバー(42)の左右両側部(45,46)にはハンドル(1)の左右両側に設けた摘み部(25,26,27,29)がカバー(1)の外側へ突出する貫通孔(50,51)を設け、前記ハンドル(1)の左右両側の摘み部(25,26,27,29)と前記カバー(42)の左右両側部(45,46)の貫通孔(50,51)とは、それぞれ、複数例えば一対設けられて前後方向(X)及び左右方向(Y)に直交する上下方向(Z)へ並設されている。
The present invention will be described with reference to the reference numerals of the drawings (FIGS. 1 to 9) of the embodiments described later.
The medical blade with a cover according to the invention of claim 1 includes a handle (1) and a cover (42) capable of protecting the blade body (17) attached to the head of the handle (1). The cover (42) is placed on the outside of the handle (1) and is movably supported with respect to the handle (1) in the front-rear direction (X) along the longitudinal direction of the handle (1) to support the blade body (17). The blade unused position (P) that can be protected and the blade usable position (Q) that can expose the blade (17) from the cover (42) are taken, and the horizontal direction orthogonal to the front-rear direction (X). It has side portions (45, 46) on both sides of (Y). In the left and right side portions (45, 46) of the cover (42), through holes (25, 26, 27, 29) provided on the left and right sides of the handle (1) project to the outside of the cover (1). 50, 51) are provided , and through holes (50, 51) of the left and right side knobs (25, 26, 27, 29) of the handle (1) and the left and right side portions (45, 46) of the cover (42). Are provided in pairs, for example, in pairs, and are arranged side by side in the vertical direction (Z) orthogonal to the front-rear direction (X) and the left-right direction (Y) .

請求項1の発明では、例えば、医療用刃物を片手で握って使用する場合、ハンドル(1)を左右両側から挟んで持った手指を、カバー(42)に当てがうとともに、カバー(42)の左右両貫通孔(50,51)から突出するハンドル(1)の左右両摘み部(25,26,27,29)にも当てがうことができる。そのため、ハンドル(1)を持った手指で左右両摘み部(25,26,27,29)を持ったままカバー(42)を操作することができる。従って、カバー(42)を移動させてもハンドル(1)の左右両摘み部(25,26,27,29)は移動せず、ハンドル(1)を持った手指が安定して、カバー(42)の移動操作を行い易くすることができる。また、ハンドル(1)とカバー(42)との間に緩みがある場合でも、ハンドルに対し緩みのあるカバーを掴んで執刀する従来の場合と比較して、ハンドル(1)の左右両摘み部(25,26,27,29)をしっかりと掴んで使用することができるため、その緩みによる悪影響を受けにくくなって執刀時等の使い勝手を良くすることができる。
また、ハンドル(1)を左右両側から挟んで持った手指をハンドル(1)の左右両摘み部(25,26,27,29)に当てがい易い。その左右両摘み部(25,26,27,29)は上下方向(Z)へ複数並設されているので、左右両摘み部(25,26,27,29)に当てがった手指はカバー(42)に接触しにくくなって、カバー(42)の移動操作を行い易くすることができる。
請求項2の発明にかかるカバー付き医療用刃物は、ハンドル(1)とそのハンドル(1)の頭部に取り付けた刃体(17)を保護し得るカバー(42)とを備えている。このカバー(42)は、ハンドル(1)の外側に被せられてハンドル(1)に対しハンドル(1)の長手方向に沿う前後方向(X)へ移動可能に支持され、刃体(17)を保護し得る刃体不使用位置(P)と、刃体(17)をカバー(42)から露出し得る刃体使用可能位置(Q)とを取り、前後方向(X)に対し直交する左右方向(Y)の両側の側部(45,46)を有している。このカバー(42)の左右両側部(45,46)にはハンドル(1)の左右両側に設けた摘み部(25,26,27,29)がカバー(1)の外側へ突出する貫通孔(50,51)を設け、前記カバーにおいて、前後方向及び左右方向に直交する上下方向の両側のうち、下側には前記刃体不使用位置で刃体の刃縁に面する下部を有し、このカバーの下部にはハンドルの下側に設けた摘み部がカバーの外側へ突出する貫通孔を設けている。
請求項2の発明では、ハンドル(1)を左右両側から挟んで持った手指をハンドル(1)の左右両摘み部(25,26,27,29)ばかりでなくハンドル(1)の下側摘み部(28)にも当てがうことができる。従って、ハンドル(1)を持った手指がより一層安定してカバー(42)の移動操作を行い易くするとともに執刀時等の使い勝手を良くすることができる。
請求項3の発明にかかるカバー付き医療用刃物は、ハンドル(1)とそのハンドル(1)の頭部に取り付けた刃体(17)を保護し得るカバー(42)とを備えている。このカバー(42)は、ハンドル(1)の外側に被せられてハンドル(1)に対しハンドル(1)の長手方向に沿う前後方向(X)へ移動可能に支持され、刃体(17)を保護し得る刃体不使用位置(P)と、刃体(17)をカバー(42)から露出し得る刃体使用可能位置(Q)とを取り、前後方向(X)に対し直交する左右方向(Y)の両側の側部(45,46)を有している。このカバー(42)の左右両側部(45,46)にはハンドル(1)の左右両側に設けた摘み部(25,26,27,29)がカバー(1)の外側へ突出する貫通孔(50,51)を設け、カバー(42)において、前後方向(X)及び左右方向(Y)に直交する上下方向(Z)の両側のうち、上側には前記刃体不使用位置(P)で刃体(17)の刃縁(18)に対し対辺側になる背縁(19)に面する上部(43)を有し、前記ハンドル(1)の左右両側の摘み部(25,27)はこのカバー(42)の上部(43)に対しその上方で面する指当部(25b,27b)を有している。
請求項3の発明では、ハンドル(1)を左右両側から挟んで持った手指をハンドル(1)の左右両摘み部(25,26,27,29)ばかりでなく、カバー(42)の上部(43)に面する指当部(25b,27b)にも当てがうことができる。従って、ハンドル(1)を持った手指がより一層安定してカバー(42)の移動操作を行い易くするとともに執刀時等の使い勝手を良くすることができる。
In the invention of claim 1, for example, when the medical blade is used by holding it with one hand, the fingers holding the handle (1) sandwiched from both the left and right sides are applied to the cover (42) and the cover (42). It can also be applied to the left and right knobs (25, 26, 27, 29) of the handle (1) protruding from the left and right through holes (50, 51). Therefore, the cover (42) can be operated while holding both the left and right knobs (25, 26, 27, 29) with the fingers holding the handle (1). Therefore, even if the cover (42) is moved, the left and right knobs (25, 26, 27, 29) of the handle (1) do not move, and the fingers holding the handle (1) are stable and the cover (42) is stable. ) Can be easily moved. Further, even if there is looseness between the handle (1) and the cover (42), both the left and right knobs of the handle (1) are compared with the conventional case where the cover with looseness is grasped and operated. Since (25, 26, 27, 29) can be firmly grasped and used, it is less likely to be adversely affected by the loosening, and the usability at the time of operation can be improved.
Further, it is easy to apply the fingers holding the handle (1) from both the left and right sides to the left and right knobs (25, 26, 27, 29) of the handle (1). Since a plurality of the left and right knobs (25, 26, 27, 29) are arranged side by side in the vertical direction (Z), the fingers applied to the left and right knobs (25, 26, 27, 29) are covered. It becomes difficult to come into contact with (42), and it is possible to facilitate the movement operation of the cover (42).
The medical blade with a cover according to the invention of claim 2 includes a handle (1) and a cover (42) capable of protecting the blade body (17) attached to the head of the handle (1). The cover (42) is placed on the outside of the handle (1) and is movably supported with respect to the handle (1) in the front-rear direction (X) along the longitudinal direction of the handle (1) to support the blade body (17). The blade unused position (P) that can be protected and the blade usable position (Q) that can expose the blade (17) from the cover (42) are taken, and the horizontal direction orthogonal to the front-rear direction (X). It has side portions (45, 46) on both sides of (Y). In the left and right side portions (45, 46) of the cover (42), through holes (25, 26, 27, 29) provided on the left and right sides of the handle (1) project to the outside of the cover (1). 50, 51) are provided, and the cover has a lower portion facing the blade edge of the blade at the position where the blade is not used, on the lower side of both sides in the vertical direction orthogonal to the front-rear direction and the left-right direction. The lower part of the cover is provided with a through hole in which a knob provided on the lower side of the handle projects to the outside of the cover.
In the invention of claim 2, the fingers holding the handle (1) sandwiched from both the left and right sides are gripped not only on the left and right grips (25, 26, 27, 29) of the handle (1) but also on the lower side of the handle (1). It can also be applied to the part (28). Therefore, the fingers holding the handle (1) can more stably move the cover (42), and the usability at the time of operation can be improved.
The medical blade with a cover according to the invention of claim 3 includes a handle (1) and a cover (42) capable of protecting the blade body (17) attached to the head of the handle (1). The cover (42) is placed on the outside of the handle (1) and is movably supported with respect to the handle (1) in the front-rear direction (X) along the longitudinal direction of the handle (1) to support the blade body (17). The blade unused position (P) that can be protected and the blade usable position (Q) that can expose the blade (17) from the cover (42) are taken, and the horizontal direction orthogonal to the front-rear direction (X). It has side portions (45, 46) on both sides of (Y). In the left and right side portions (45, 46) of the cover (42), through holes (25, 26, 27, 29) provided on the left and right sides of the handle (1) project to the outside of the cover (1). 50, 51) are provided, and in the cover (42), the blade unused position (P) is located on the upper side of both sides in the vertical direction (Z) orthogonal to the front-rear direction (X) and the left-right direction (Y). The handle (17) has an upper portion (43) facing the back edge (19) opposite to the blade edge (18), and the knobs (25, 27) on the left and right sides of the handle (1) are provided. It has finger pads (25b, 27b) facing above the upper part (43) of the cover (42).
In the invention of claim 3, the fingers holding the handle (1) sandwiched from both the left and right sides are held not only at the left and right knobs (25, 26, 27, 29) of the handle (1) but also at the upper part (42) of the cover (42). It can also be applied to the finger pads (25b, 27b) facing 43). Therefore, the fingers holding the handle (1) can more stably move the cover (42), and the usability at the time of operation can be improved.

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の発明において、前記ハンドル(1)の左右両側の摘み部(25,26,27,29)と前記カバー(42)の左右両側部(45,46)の貫通孔(50,51)とは、前後方向(X)へ延設されている。請求項の発明では、カバー(42)を前後方向(X)へ移動させる際に、左右両摘み部(25,26,27,29)を持つ位置を使用者の手指の大きさや長さの相違に応じて前後方向(X)で変えることができるため、カバー(42)の移動操作を行い易くすることができる。 In the invention of claim 4 , which is premised on the invention of any one of claims 1 to 3, the knobs (25, 26, 27, 29) on both the left and right sides of the handle (1) and the cover ( The through holes (50, 51) on the left and right side portions (45, 46) of 42) extend in the front-rear direction (X). In the invention of claim 4 , when the cover (42) is moved in the front-rear direction (X), the position where the left and right knobs (25, 26, 27, 29) are held is determined by the size and length of the user's fingers. Since it can be changed in the front-rear direction (X) according to the difference, it is possible to facilitate the movement operation of the cover (42).

請求項の発明を前提とする請求項の発明において、前記ハンドル(1)の左右両側の摘み部(25,26,27,29)と前記カバー(42)の左右両側部(45,46)の貫通孔(50,51)とは、ハンドル(1)に対しカバー(42)を前後方向(X)へ案内する案内部として兼用されている。請求項の発明では、カバー(42)の移動操作を行い易くするために設けた左右両貫通孔(50,51)及び左右両摘み部(25,26,27,29)をカバー(42)の案内機能として兼用することができる。従って、ハンドル(1)及びカバー(42)の構造を簡単にすることができる。 In the invention of claim 5 , which is premised on the invention of claim 4 , the left and right side knobs (25, 26, 27, 29) of the handle (1) and the left and right side portions (45, 46) of the cover (42). The through holes (50, 51) of) are also used as a guide portion for guiding the cover (42) in the front-rear direction (X) with respect to the handle (1). In the invention of claim 5 , the cover (42) covers the left and right through holes (50, 51) and the left and right knobs (25, 26, 27, 29) provided to facilitate the movement operation of the cover (42). It can also be used as a guidance function for. Therefore, the structure of the handle (1) and the cover (42) can be simplified.

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〜のうちいずれか一つの請求項の発明を前提とする第の発明にかかるカバー(42)において、前後方向(X)及び左右方向(Y)に直交する上下方向(Z)の両側のうち、上側には前記刃体不使用位置(P)で刃体(17)の刃縁(18)に対し対辺側になる背縁(19)に面する上部(43)を有し、このカバー(42)の上部(43)にはハンドル(1)に対しカバー(42)を移動させることができる操作部(43a)を設けている。第の発明では、カバー(42)の上部(43)に設けた操作部(43a)によりカバー(42)の移動操作を行い易くすることができる。
Next, technical ideas other than the claims will be described with reference to the reference numerals of the drawings of the embodiments.
In the cover (42) according to the sixth invention, which is premised on the invention of any one of claims 1 to 5 , the vertical direction (Z) orthogonal to the front-rear direction (X) and the left-right direction (Y). On both sides of the above, there is an upper portion (43) facing the back edge (19) which is opposite to the blade edge (18) of the blade body (17) at the blade body unused position (P). An operation unit (43a) capable of moving the cover (42) with respect to the handle (1) is provided on the upper portion (43) of the cover (42). In the sixth invention, the operation unit (43a) provided on the upper portion (43) of the cover (42) can facilitate the movement operation of the cover (42).

請求項1〜のうちいずれか一つの請求項の発明、または第の発明を前提とする第の発明において、前記ハンドル(1)は、前記頭部を有するカバー支持部(6)と、そのカバー支持部(6)に対し長手方向(X)で連続する把持部(7)とを備え、前記カバー(42)は刃体使用可能位置(Q)でこのカバー支持部(6)の外側に被せられ、前記摘み部(25,26,27,29)はこのカバー支持部(6)の左右両側に設けられている。第の発明では、把持部(7)を持った手指でカバー支持部(6)の左右両摘み部(25,26,27,29)を持ったままカバー(42)を操作することができるので、ハンドル(1)の把持部(7)を持った手指が安定して、カバー(42)の移動操作を行い易くすることができる。また、ハンドル(1)のカバー支持部(6)とカバー(42)との間の緩みによる悪影響を受けにくくなって執刀時等の使い勝手を良くすることができる。 In the invention of any one of claims 1 to 5 , or the seventh invention premised on the sixth invention, the handle (1) is the cover support portion (6) having the head. A grip portion (7) continuous with the cover support portion (6) in the longitudinal direction (X) is provided, and the cover (42) is a cover support portion (6) at a blade usable position (Q). It is covered on the outside, and the knob portions (25, 26, 27, 29) are provided on both the left and right sides of the cover support portion (6). In the seventh invention, the cover (42) can be operated with the fingers holding the grip portion (7) while holding the left and right grip portions (25, 26, 27, 29) of the cover support portion (6). Therefore, the fingers holding the grip portion (7) of the handle (1) are stable, and the cover (42) can be easily moved. Further, the handle (1) is less likely to be adversely affected by loosening between the cover support portion (6) and the cover (42), and the usability at the time of operation can be improved.

請求項1〜5の発明を前提とする第の発明にかかるカバー(42)において、前後方向(X)の両側のうち、前側の端部と後側の端部とに開口部(48,49)を設け、上部(43)には後端開口部(49)で左右両側部(45,46)を区分する切込部(56)を設けている。第の発明では、切込部(56)により左右両側部(45,46)を左右方向(Y)へ広げることができるので、カバー(42)をハンドル(1)の外側に被せ易い。 In the cover (42) according to the eighth invention, which is premised on the inventions of claims 1 to 5 , openings (48, 48,) are provided in the front end and the rear end on both sides in the front-rear direction (X). 49) is provided, and a notch (56) for separating the left and right side portions (45, 46) by the rear end opening (49) is provided in the upper portion (43). In the eighth invention, since the left and right side portions (45, 46) can be expanded in the left-right direction (Y) by the cut portion (56), the cover (42) can be easily put on the outside of the handle (1).

の発明を前提とする第の発明にかかるカバー(42)において、下部(44)の貫通孔(54)及び上部(43)の切込部(56)で、左右両側部(45,46)の後端部の間隔が弾性力に抗して左右方向(Y)へ広がり得るように左右両側部(45,46)の後端部は可撓性を有している。第の発明では、カバー(42)を左右両側部(45,46)の後端部間からハンドル(1)の外側に被せ易い。 In the cover (42) according to the ninth invention, which is premised on the eighth invention, the left and right side portions (45,) are formed by the through hole (54) of the lower portion (44) and the notch portion (56) of the upper portion (43). The rear ends of the left and right side portions (45, 46) are flexible so that the distance between the rear end portions of 46) can be widened in the left-right direction (Y) against the elastic force. In the ninth invention, the cover (42) can be easily put on the outside of the handle (1) from between the rear ends of the left and right side portions (45, 46).

の発明を前提とする第1の発明にかかるカバー(42)において、下部(44)の貫通孔(54)及び上部(43)の切込部(56)で、左右両側部(45,46)の後端部が互いに離間されている。第1の発明では、カバー(42)を左右両側部(45,46)の後端部間からハンドル(1)の外側に被せ易い。 First 0 invention in cover (42) according to the, the lower cut portion of the through hole (44) (54) and upper (43) (56), left and right side portions that assumes the ninth invention (45 , 46) The rear ends are separated from each other. In the tenth invention, the cover (42) can be easily put on the outside of the handle (1) from between the rear ends of the left and right side portions (45, 46).

請求項1〜5の発明、または第〜1の発明のうちいずれか一つの発明を前提とする第1の発明において、前記カバー(42)の上部(43)は、前後方向(X)の両側で支持されて上下方向(Z)の弾性を有する両持ち梁(43)を有し、前記操作部(43a)はこの両持ち梁(43)に設けられている。第1の発明では、両持ち梁(43)の弾性を利用して操作部(43a)によりカバー(42)を刃体不使用位置(P)と刃体使用可能位置(Q)とに移動させることができる。 The invention of claim 1 to 5, or in the first aspect of the invention that assumes any one invention of the invention of a 8-1 0, the upper part of the cover (42) (43), the front-rear direction (X ) Has a double-sided beam (43) that is supported on both sides and has elasticity in the vertical direction (Z), and the operation portion (43a) is provided on the double-sided beam (43). In the first aspect of the invention, moved to a doubly supported beam (43) blade body the non-use position the cover (42) by the operation unit by using an elastic (43a) of the (P) and blade body enabled position (Q) Can be made to.

請求項1〜5の発明、または第〜1の発明のうちいずれか一つの発明を前提とする第1の発明において、前記カバー(42)の左右両側部(45,46)のうち少なくとも一方の側部(46)は、前後方向(X)の両側で支持されて弾性を有する両持ち梁(52)を有し、この両持ち梁(52)にクリック部(53)を設け、このカバー(42)のクリック部(53)はハンドル(1)に設けたクリック部(32,33)に対しハンドル(1)に対するカバー(42)の移動に伴い係脱される。例えば、ハンドル(1)のクリック部(32,33)は前後両側に設けられている。第1の発明では、ハンドル(1)とカバー(42)との間のクリック部(32,33,53)により、弾性による係脱抵抗を感じてカバー(42)を移動操作させることができる。 In the first 2 of the present invention that assumes one invention any of the preceding invention of claim 1 to 5, or a 8-1 first invention, one of the right and left side portions of the cover (42) (45, 46) At least one side portion (46) has a double-sided beam (52) that is supported on both sides in the front-rear direction (X) and has elasticity, and the double-sided beam (52) is provided with a click portion (53). The click portion (53) of the cover (42) is disengaged from the click portion (32, 33) provided on the handle (1) as the cover (42) moves with respect to the handle (1). For example, the click portions (32, 33) of the handle (1) are provided on both front and rear sides. In the first 2 of the invention, the click portion between the handle (1) and cover (42) (32,33,53) can move operating the cover (42) feeling the disengagement resistance of the elastic ..

請求項1〜のうちいずれか一つの請求項の発明、または第〜1の発明のうちいずれか一つの発明を前提とする第1の発明において、前記カバー(42)の左右両側部(45,46)は左右方向(Y)の厚みが薄い板状に形成されている。第1の発明では、カバー(42)の左右方向(Y)の幅を小さくすることができる。 Invention of any one of claims one of claims 1 to 5, or in the first third invention assumes any one invention of the first 6-1 and second invention, left and right sides of the cover (42) The portions (45, 46) are formed in a plate shape having a thin thickness in the left-right direction (Y). In the invention of the first 3, it is possible to reduce the width of the left and right direction of the cover (42) (Y).

本発明は、手術用メスなどのカバー付き医療用刃物を特に片手で握って使用する場合にカバー(42)の移動操作を行い易くするとともに使い勝手を良くすることができる。 INDUSTRIAL APPLICABILITY According to the present invention, when a medical blade with a cover such as a scalpel is used while being gripped with one hand, the cover (42) can be easily moved and the usability can be improved.

(a)は医療用刃物のハンドルの開状態において刃体を取り付けた状態の正面側を斜め上方から見た斜視図であり、(b)は同じく背面側を斜め下方から見た斜視図である。(A) is a perspective view of the front side with the blade attached when the handle of the medical blade is open, and (b) is a perspective view of the back side as seen from diagonally below. .. (a)は医療用刃物のハンドルの閉状態において刃体を取り付けた状態の正面側を斜め上方から見た斜視図であり、(b)は同じく背面側を斜め下方から見た斜視図である。(A) is a perspective view of the front side with the blade attached when the handle of the medical blade is closed, and (b) is a perspective view of the back side as seen from diagonally below. .. 図2のハンドルを平面側から見た部分断面図である。It is a partial cross-sectional view of the handle of FIG. 2 seen from the plane side. (a)は医療用刃物のカバーの正面側を斜め上方から見た斜視図であり、(b)は同じく背面側を斜め下方から見た斜視図である。(A) is a perspective view of the front side of the cover of the medical cutting tool viewed from diagonally above, and (b) is a perspective view of the back side of the cover as viewed from diagonally below. (a)は刃体不使用位置にある医療用刃物の正面側を斜め上方から見た斜視図であり、(b)は同じく背面側を斜め下方から見た斜視図である。(A) is a perspective view of the front side of the medical blade in a position where the blade is not used when viewed from diagonally above, and (b) is a perspective view of the back side of the medical blade when viewed from diagonally below. (a)は刃体不使用位置にある医療用刃物を示す背面図であり、(b)は(a)のA1−A1線断面図であり、(c)は(a)のA2−A2線断面図であり、(d)は(a)のA3−A3線断面図であり、(e)は(a)のA4−A4線断面図である。(A) is a rear view showing a medical blade in a position where the blade is not used, (b) is a sectional view taken along line A1-A1 of (a), and (c) is a line A2-A2 of (a). It is a cross-sectional view, (d) is a cross-sectional view of A3-A3 line of (a), and (e) is a cross-sectional view of A4-A4 line of (a). (a)は刃体使用可能位置にある医療用刃物の正面側を斜め上方から見た斜視図であり、(b)は同じく背面側を斜め下方から見た斜視図である。(A) is a perspective view of the front side of the medical blade in a usable position of the blade as viewed from diagonally above, and (b) is a perspective view of the back side as viewed from diagonally below. (a)は刃体使用可能位置にある医療用刃物を示す背面図であり、(b)は(a)のB1−B1線断面図であり、(c)は(a)のB2−B2線断面図であり、(d)は(a)のB3−B3線断面図であり、(e)は(a)のB4−B4線断面図である。(A) is a rear view showing a medical blade in a usable position of the blade, (b) is a sectional view taken along line B1-B1 of (a), and (c) is a line B2-B2 of (a). It is a cross-sectional view, (d) is a cross-sectional view of line B3-B3 of (a), and (e) is a cross-sectional view of line B4-B4 of (a). (a)は刃体不使用位置にある医療用刃物においてロック回避位置を示す部分正面図であり、(b)は同じくロック位置を示す部分正面図であり、(c)は刃体使用可能位置にある医療用刃物においてロック回避位置を正面側から見た部分断面図である。(A) is a partial front view showing a lock avoidance position in a medical blade in a blade non-use position, (b) is a partial front view also showing a lock position, and (c) is a blade usable position. It is a partial cross-sectional view of the lock avoidance position seen from the front side in the medical blade in.

以下、本発明の一実施形態にかかる医療用刃物について図面を参照して説明する。
図1に示すように、開状態のハンドル1は、プラスチックにより一体成形され、互いに連結された後端部1aから前端部まで延設された二股状の左腕2及び右腕3を上下両側に備えている。左腕2の前端部から少し後方で内側に突条4が形成されているとともに、右腕3の前端部から少し後方で内側に長孔5が形成され、図2及び図6(e)に示すように左腕2の内側と右腕3の内側とが互いに重ねられた閉状態でその突条4が長孔5に挿嵌されてそれらの内側が互いに離脱不能に取着された一本のハンドル1となっている。図2に示す閉状態のハンドル1は、前端部である頭部を有するカバー支持部6と、そのカバー支持部6の後端部に対し前後方向に沿う長手方向Xで連続する把持部7とを備えている。把持部7は上枠部8と下枠部9との間に透孔10を有している。カバー支持部6は把持部7の前端部から前方へ頭部まで延設されて左側板部11と右側板部12とがそれらの内側で互いに重ねられている。把持部7の下枠部9の右側には目盛9aが長手方向Xへ付されている。
Hereinafter, a medical blade according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the open handle 1 is provided with bifurcated left arm 2 and right arm 3 which are integrally molded of plastic and are connected to each other and extend from the rear end portion 1a to the front end portion on both the upper and lower sides. There is. A ridge 4 is formed inward slightly behind the front end of the left arm 2, and a long hole 5 is formed inward slightly behind the front end of the right arm 3, as shown in FIGS. 2 and 6 (e). In a closed state where the inside of the left arm 2 and the inside of the right arm 3 are overlapped with each other, the ridge 4 is inserted into the elongated hole 5, and the insides of the ridge 4 are attached to each other so as not to be detached from each other. It has become. The closed handle 1 shown in FIG. 2 includes a cover support portion 6 having a head portion which is a front end portion, and a grip portion 7 which is continuous with the rear end portion of the cover support portion 6 in the longitudinal direction X along the front-rear direction. It has. The grip portion 7 has a through hole 10 between the upper frame portion 8 and the lower frame portion 9. The cover support portion 6 extends forward from the front end portion of the grip portion 7 to the head, and the left side plate portion 11 and the right side plate portion 12 are overlapped with each other inside them. A scale 9a is attached to the right side of the lower frame portion 9 of the grip portion 7 in the longitudinal direction X.

カバー支持部6において、前端部から少し後方で、左側板部11の内側に刃体重合部13が形成されてその刃体重合部13に止め部14が形成されているとともに、右側板部12の内側に刃体重合部15が形成されてその刃体重合部15に止め孔16が突設されている。薄板状の刃体17において、下側には刃縁18が形成され、上側には刃縁18の対辺側になる背縁19が形成され、図6(b)(c)に示すように厚み方向である左右方向Yの両側の側面20間に貫通された止め孔21が形成されている。図3に示すように、刃体17の後部側が左右の刃体重合部13,15間に嵌め込まれて刃体17の前部側がカバー支持部6の前端部から前方へ突出した状態で、左側板部11の止め部14が刃体17の止め孔21及び右側板部12の止め孔16に挿嵌されている。右側の刃体重合部15の後端部には僅かに傾斜する凹部22が形成されているとともに、左側の刃体重合部13の後端部には僅かに傾斜する凸部23が形成され、左右の刃体重合部13,15間に嵌め込まれた刃体17の後端部が凸部23により凹部22側に押圧されて若干反る。そのため、左右の刃体重合部13,15に間に挟持された刃体17の緩みを抑制することができる。左側の刃体重合部13の後端部には視認孔24が形成され、左右の刃体重合部13,15間に嵌め込まれた刃体17の後端部に付された品番をその視認孔24から見て刃体17の種類を識別することもできる。 In the cover support portion 6, slightly rearward from the front end portion, the blade overlapping portion 13 is formed inside the left plate portion 11, the blade overlapping portion 13 is formed with the stopping portion 14, and the right plate portion 12 is formed. A blade overlapping portion 15 is formed inside the blade overlapping portion 15, and a stop hole 16 is provided in the blade overlapping portion 15. In the thin plate-shaped blade body 17, a blade edge 18 is formed on the lower side, and a back edge 19 on the opposite side of the blade edge 18 is formed on the upper side, and the thickness is as shown in FIGS. Stop holes 21 are formed between the side surfaces 20 on both sides in the left-right direction Y, which is the direction. As shown in FIG. 3, the rear side of the blade 17 is fitted between the left and right blade overlapping portions 13 and 15, and the front side of the blade 17 protrudes forward from the front end of the cover support portion 6 on the left side. The stop portion 14 of the plate portion 11 is inserted into the stop hole 21 of the blade body 17 and the stop hole 16 of the right plate portion 12. A slightly inclined concave portion 22 is formed at the rear end portion of the blade overlapping portion 15 on the right side, and a slightly inclined convex portion 23 is formed at the rear end portion of the blade overlapping portion 13 on the left side. The rear end portion of the blade body 17 fitted between the left and right blade body overlapping portions 13 and 15 is pressed toward the concave portion 22 side by the convex portion 23 and slightly warps. Therefore, it is possible to suppress loosening of the blade body 17 sandwiched between the left and right blade body overlapping portions 13 and 15. A viewing hole 24 is formed at the rear end of the blade overlapping portion 13 on the left side, and the part number attached to the rear end of the blade 17 fitted between the left and right blade overlapping portions 13 and 15 is the viewing hole. It is also possible to identify the type of the blade 17 as viewed from 24.

カバー支持部6の前端部と後端部との間において、左側板部11の外側には前後方向Xへ一連に延設された上側摘み部25(指当部)と中間摘み部26(指当部)とが上下方向Zで互いに間隔をあけて並設され、右側板部12の外側には前後方向Xへ一連に延設された上側摘み部27(指当部)と下側摘み部28(指当部)とそれらの間の中間摘み部29(指当部)とが上下方向Zで互いに間隔をあけて並設されている。図6及び図8に示すように、左側板部11の上側摘み部25及び右側板部12の上側摘み部27においては、左右両側板部11,12に沿って上下方向Zへ延びる指当部25a,27aが形成されているとともに、指当部25a,27aの上端部から略円弧状の境界部を介して滑らかに連続する指当部25b,27bが形成されている。左右両指当部25b,27bは、左右方向Yへ延びて互いに間隔をあけて相対向し、それらの指当部25b,27bの内側には前後方向Xの両側で係止凹部30,31が相対向して形成されている。右側板部12の上側摘み部27の外側で前後方向Xの両側にはクリック凹部32,33が形成されている。左側板部11及び右側板部12の後端部の外側で把持部7の上枠部8との境界部には押圧凸部34が形成されている。 Between the front end and the rear end of the cover support 6, the upper grip 25 (finger pad) and the intermediate grip 26 (fingers) extending in a series in the front-rear direction X are outside the left plate 11. The upper knob 27 (finger pad) and the lower knob are arranged side by side in the vertical direction Z at intervals from each other, and extend in a series in the front-rear direction X on the outside of the right plate portion 12. 28 (finger pad portion) and an intermediate knob portion 29 (finger pad portion) between them are arranged side by side at intervals in the vertical direction Z. As shown in FIGS. 6 and 8, in the upper grip portion 25 of the left plate portion 11 and the upper grip portion 27 of the right plate portion 12, the finger contact portion extending in the vertical direction Z along the left and right side plate portions 11 and 12. The finger pads 25a and 27a are formed, and the finger pad portions 25b and 27b that are smoothly continuous from the upper ends of the finger pad portions 25a and 27a via a substantially arc-shaped boundary portion are formed. The left and right finger contact portions 25b and 27b extend in the left-right direction Y and face each other at a distance from each other, and locking recesses 30 and 31 are provided on both sides of the front-rear direction X inside the finger contact portions 25b and 27b. They are formed facing each other. Click recesses 32 and 33 are formed on both sides in the front-rear direction X on the outside of the upper knob portion 27 of the right plate portion 12. A pressing convex portion 34 is formed on the outer side of the rear end portion of the left side plate portion 11 and the right side plate portion 12 at the boundary portion with the upper frame portion 8 of the grip portion 7.

左側板部11上の後端部から少し前方に形成された凹所35にはロック回避位置Eにあるロック操作部36が形成されている。ロック操作部36は、カバー支持部6で前後方向Xへ撓み得るように片持ち梁状に立設された可撓柱37と、図6(a)に示すように可撓柱37の先端部37aで前後方向Xへ延設された指当部38とを有している。可撓柱37の先端部37aは指当部38の前端部と後端部との間に設けられている。可撓柱37はその基端部37bから先端部37aに向かうに従い指当部38の前端部側に傾斜している。指当部38の前端部には当接部39が設けられている。指当部38の後端部には保持部40が設けられている。可撓柱37の先端部37aと指当部38の後端部との間の距離は、可撓柱37の先端部37aと指当部38の前端部との間の距離より大きく設定されている。凹所35には保持部40の後方で隣接して段差状の保持部41が形成されている。 A lock operation portion 36 at the lock avoidance position E is formed in the recess 35 formed slightly forward from the rear end portion on the left plate portion 11. The lock operation portion 36 includes a flexible column 37 erected in a cantilever shape so that the cover support portion 6 can bend in the front-rear direction X, and a tip portion of the flexible column 37 as shown in FIG. 6A. It has a finger pad 38 extending in the front-rear direction X at 37a. The tip portion 37a of the flexible column 37 is provided between the front end portion and the rear end portion of the finger rest portion 38. The flexible column 37 is inclined toward the front end portion side of the finger rest portion 38 from the base end portion 37b toward the tip end portion 37a. A contact portion 39 is provided at the front end portion of the finger contact portion 38. A holding portion 40 is provided at the rear end portion of the finger rest portion 38. The distance between the tip 37a of the flexible column 37 and the rear end of the finger rest 38 is set to be larger than the distance between the tip 37a of the flexible column 37 and the front end of the finger pad 38. There is. A stepped holding portion 41 is formed adjacent to the recessed portion 35 behind the holding portion 40.

図4に示すカバー42は、プラスチックにより一体成形され、上板部43と下板部44と左右両側板部45,46とを有し、上板部43と下板部44と左右両側板部45,46とで囲まれた収容室47が前端部及び後端部の開口部48,49で開放されている。左右両側板部45,46には収容室47に連通する貫通孔50,51が前端部と後端部との間で前後方向Xへ一連に延設されて上下方向Zの両側で並設されているとともに、上側貫通孔50と中間貫通孔51との間に区画板部52が形成されている。右側板部46において上側貫通孔50と中間貫通孔51との間の区画板部52(両持ち梁)には前後方向Xの中央部で上側貫通孔50側に突出するクリック凸部53が形成されている。下板部44には収容室47に連通する貫通孔54が前端部と後端部との間で前後方向Xへ延設されて後端部の開口部49に開放されている。上板部43(両持ち梁)には前後方向Xの中央部でカバー操作部43aが上方へ突設され、カバー操作部43aの少し前方で左右両側に係止凸部55が形成されている。上板部43にはその後端部とカバー操作部43aとの間で左右両側板部45,46を区分する切込部56が前後方向Xへ延設されて後端部の開口部49に開放されている。左右両側板部45,46の後端部は、互いに離間され、その後端部の間隔がその後端部の弾性力に抗して左右方向Yへ広がり得るように可撓性を有している。カバー42の後端部で開口部49の端縁には当接部57が設けられている。 The cover 42 shown in FIG. 4 is integrally molded of plastic, has an upper plate portion 43, a lower plate portion 44, and left and right side plate portions 45, 46, and has an upper plate portion 43, a lower plate portion 44, and left and right side plate portions. The accommodation chamber 47 surrounded by 45 and 46 is opened by openings 48 and 49 at the front end and the rear end. Through holes 50, 51 communicating with the accommodation chamber 47 are extended in a series in the front-rear direction X between the front end portion and the rear end portion in the left and right side plate portions 45, 46, and are arranged side by side on both sides in the vertical direction Z. At the same time, a partition plate portion 52 is formed between the upper through hole 50 and the intermediate through hole 51. In the right plate portion 46, the partition plate portion 52 (double-sided beam) between the upper through hole 50 and the intermediate through hole 51 is formed with a click convex portion 53 protruding toward the upper through hole 50 at the central portion in the front-rear direction X. Has been done. In the lower plate portion 44, a through hole 54 communicating with the accommodating chamber 47 extends in the front-rear direction X between the front end portion and the rear end portion, and is opened to the opening 49 at the rear end portion. A cover operating portion 43a is projected upward from the upper plate portion 43 (double-sided beam) at the central portion in the front-rear direction X, and locking convex portions 55 are formed on both left and right sides slightly in front of the cover operating portion 43a. .. In the upper plate portion 43, a notch 56 that separates the left and right side plate portions 45 and 46 between the rear end portion and the cover operation portion 43a is extended in the front-rear direction X and opens to the opening portion 49 at the rear end portion. Has been done. The rear ends of the left and right side plate portions 45, 46 are separated from each other, and have flexibility so that the distance between the rear ends can spread in the left-right direction Y against the elastic force of the rear ends. A contact portion 57 is provided at the rear end portion of the cover 42 and at the edge of the opening 49.

図5に示すように、カバー42は、左右両側板部45,46の後端部を上板部43の切込部56及び下板部44の貫通孔54とともに互いに広げた状態で、刃体17及びカバー支持部6の外側に後端部の開口部49から前後方向Xへ移動可能に被せられる。カバー42の左側板部45において、カバー支持部6の上側摘み部25が上側貫通孔50に挿嵌されて外側へ突出するとともに、カバー支持部6の中間摘み部26が中間貫通孔51に挿嵌されて外側へ突出している。カバー42の右側板部46において、カバー支持部6の上側摘み部27が上側貫通孔50に挿嵌されて外側へ突出するとともに、カバー支持部6の中間摘み部29が中間貫通孔51に挿嵌されて外側へ突出し、カバー支持部6の下側摘み部28が下側貫通孔54に挿嵌されて外側へ突出している。上側摘み部25の指当部25bと上側摘み部27の指当部27bとは、カバー42の上板部43より若干上方へ左右方向Yで相対向して突出している。上側摘み部25と上側貫通孔50、上側摘み部27と上側貫通孔50、中間摘み部26と中間貫通孔51、中間摘み部29と中間貫通孔51及び下側摘み部28と下側貫通孔54とは、それぞれ、ハンドル1に対しカバー42を前後方向Xへ案内する案内部として兼用されている。カバー操作部43aはカバー支持部6の左右両側の上側摘み部25,27の指当部25b,27b間で上方へ突出している。 As shown in FIG. 5, the cover 42 has a blade body in which the rear ends of the left and right side plate portions 45 and 46 are widened together with the cut portion 56 of the upper plate portion 43 and the through hole 54 of the lower plate portion 44. The cover 17 and the cover support portion 6 are covered so as to be movable in the front-rear direction X from the opening 49 at the rear end portion. In the left side plate portion 45 of the cover 42, the upper grip portion 25 of the cover support portion 6 is inserted into the upper through hole 50 and protrudes outward, and the intermediate grip portion 26 of the cover support portion 6 is inserted into the intermediate through hole 51. It is fitted and protrudes outward. In the right side plate portion 46 of the cover 42, the upper grip portion 27 of the cover support portion 6 is inserted into the upper through hole 50 and protrudes outward, and the intermediate grip portion 29 of the cover support portion 6 is inserted into the intermediate through hole 51. It is fitted and protrudes outward, and the lower knob portion 28 of the cover support portion 6 is inserted into the lower through hole 54 and protrudes outward. The finger contact portion 25b of the upper knob portion 25 and the finger contact portion 27b of the upper grip portion 27 project slightly upward from the upper plate portion 43 of the cover 42 in the left-right direction Y so as to face each other. Upper knob 25 and upper through hole 50, upper knob 27 and upper through hole 50, intermediate knob 26 and intermediate through hole 51, intermediate knob 29 and intermediate through hole 51, lower knob 28 and lower through hole Each of the 54 is also used as a guide portion for guiding the cover 42 in the front-rear direction X with respect to the handle 1. The cover operating portion 43a projects upward between the finger contact portions 25b and 27b of the upper knob portions 25 and 27 on both the left and right sides of the cover supporting portion 6.

図5及び図6に示すように、カバー42の刃体不使用位置Pでは、カバー42の左右両係止凸部55が左右両側の上側摘み部25,27の前側係止凹部30に係入されるとともに、カバー42のクリック凸部53が上側摘み部27の前側クリック凹部32に係入されて、カバー42が刃体不使用位置Pで保持される。刃体17はカバー42の左右両側板部45,46間の収容室47に収容され、左右両側板部45,46が刃体17の左右両側面20に面し、下板部44が刃体17の刃縁18に面し、上板部43が刃体17の刃縁18に対し対辺側になる背縁19に面する。 As shown in FIGS. 5 and 6, at the blade non-use position P of the cover 42, the left and right locking protrusions 55 of the cover 42 engage with the front locking recesses 30 of the upper knobs 25 and 27 on both the left and right sides. At the same time, the click convex portion 53 of the cover 42 is engaged with the front click concave portion 32 of the upper knob portion 27, and the cover 42 is held at the blade unused position P. The blade body 17 is housed in a storage chamber 47 between the left and right side plate portions 45 and 46 of the cover 42, the left and right side plate portions 45 and 46 face the left and right side surfaces 20 of the blade body 17, and the lower plate portion 44 is the blade body. The upper plate portion 43 faces the blade edge 18 of 17, and the upper plate portion 43 faces the back edge 19 which is on the opposite side of the blade edge 18 of the blade body 17.

図5及び図6に示す刃体不使用位置Pからカバー操作部43aを下方へ押した後に後方へ移動させると、上板部43がその弾性力に抗して撓んで、左右両係止凸部55が前側係止凹部30から離脱されるとともに、クリック凸部53が前側クリック凹部32から離脱され、左右両係止凸部55が上側摘み部25,27の指当部25b,27bの内側を通って後方へ移動する。その後、図7及び図8に示すように、上板部43がその弾性により復帰して、左右両係止凸部55が後側係止凹部31に係入されるとともに、クリック凸部53が後側クリック凹部33に係入され、カバー42が刃体使用可能位置Qで保持される。カバー支持部6の前端部の刃体17はカバー42の前端部の開口部48から前方へ突出して露出する。カバー42の後端部の開口部49はハンドル1の把持部7の前端部に面する。その際、左右両側板部11,12の後端部の押圧凸部34がカバー42の左右両側板部45,46の後端部内側に圧接される。 When the cover operating portion 43a is pushed downward and then moved backward from the blade non-use position P shown in FIGS. 5 and 6, the upper plate portion 43 bends against the elastic force, and both the left and right locking protrusions are convex. The portion 55 is disengaged from the front locking recess 30, the click convex portion 53 is disengaged from the front click recess 32, and the left and right locking convex portions 55 are inside the finger contact portions 25b, 27b of the upper knob portions 25, 27. Move backwards through. After that, as shown in FIGS. 7 and 8, the upper plate portion 43 is restored by its elasticity, the left and right locking convex portions 55 are engaged in the rear locking concave portion 31, and the click convex portion 53 is engaged. It is engaged in the rear click recess 33, and the cover 42 is held at the blade usable position Q. The blade body 17 at the front end of the cover support 6 projects forward from the opening 48 at the front end of the cover 42 and is exposed. The opening 49 at the rear end of the cover 42 faces the front end of the grip portion 7 of the handle 1. At that time, the pressing convex portions 34 at the rear ends of the left and right side plate portions 11 and 12 are pressed against the inside of the rear ends of the left and right side plate portions 45 and 46 of the cover 42.

図7及び図8に示す刃体使用可能位置Qからカバー操作部43aを下方へ押した後に前方へ移動させると、上板部43がその弾性力に抗して撓んで、左右両係止凸部55が後側係止凹部31から離脱されるとともに、クリック凸部53が後側クリック凹部33から離脱され、左右両係止凸部55が上側摘み部25,27の指当部25b,27bの内側を通って前方へ移動する。その後、図5及び図6に示すように、上板部43がその弾性により復帰して、左右両係止凸部55が前側係止凹部30に係入されるとともに、クリック凸部53が前側クリック凹部32に係入され、カバー42が刃体不使用位置Pで保持される。カバー支持部6の前端部の刃体17はカバー42の前端部の開口部48から収容される。 When the cover operating portion 43a is pushed downward and then moved forward from the blade usable position Q shown in FIGS. 7 and 8, the upper plate portion 43 bends against the elastic force, and both the left and right locking protrusions are convex. The portion 55 is disengaged from the rear locking recess 31, the click convex portion 53 is disengaged from the rear click recess 33, and the left and right locking convex portions 55 are the finger contact portions 25b, 27b of the upper knob portions 25, 27. Move forward through the inside of. After that, as shown in FIGS. 5 and 6, the upper plate portion 43 is restored by its elasticity, the left and right locking convex portions 55 are engaged in the front locking recess 30, and the click convex portion 53 is on the front side. It is engaged in the click recess 32, and the cover 42 is held at the blade unused position P. The blade body 17 at the front end of the cover support 6 is accommodated through the opening 48 at the front end of the cover 42.

カバー42の刃体不使用位置Pでロック回避位置Eにあるロック操作部36において、図9(a)に示すように指当部38の後端部側を可撓柱37の弾性力に抗して下方へ押すと、図9(b)に示すように、可撓柱37が撓んで、指当部38がその後端部から前端部に向かうに従い上方へ傾斜する。そのため、カバー42の当接部57が指当部38の当接部39に当接可能になる。従って、カバー42の刃体不使用位置Pから刃体使用可能位置Qへの移動が当接部57と当接部39との当接により阻止されるとともに、指当部38の保持部40が凹所35の保持部41に保持され、ロック操作部36のロック位置Fからロック回避位置Eへの復帰が阻止されてロック位置Fを維持することができる。また、刃体不使用位置Pでロック操作部36の操作は可能であるが、図9(c)に示す刃体使用可能位置Qや、刃体不使用位置Pと刃体使用可能位置Qとの中間位置においては、カバー42がロック操作部36の全部または一部を覆うため、ロック操作部36の指当部38においてロック回避位置Eからロック位置Fへの不用意な移動操作をカバー42により阻止することができる。 In the lock operation portion 36 at the lock avoidance position E at the blade non-use position P of the cover 42, as shown in FIG. 9A, the rear end side of the finger contact portion 38 resists the elastic force of the flexible column 37. Then, when pushed downward, as shown in FIG. 9B, the flexible column 37 bends, and the finger rest 38 inclines upward from the rear end to the front end. Therefore, the contact portion 57 of the cover 42 can come into contact with the contact portion 39 of the finger contact portion 38. Therefore, the movement of the cover 42 from the blade unused position P to the blade usable position Q is prevented by the contact between the contact portion 57 and the contact portion 39, and the holding portion 40 of the finger rest portion 38 is prevented. It is held by the holding portion 41 of the recess 35, and the return of the lock operating portion 36 from the lock position F to the lock avoidance position E is prevented, so that the lock position F can be maintained. Further, although the lock operation unit 36 can be operated at the blade non-use position P, the blade usable position Q and the blade non-use position P and the blade usable position Q shown in FIG. 9C are shown. Since the cover 42 covers all or part of the lock operation unit 36 at the intermediate position, the finger contact portion 38 of the lock operation unit 36 covers the careless movement operation from the lock avoidance position E to the lock position F. Can be blocked by.

次に、医療用刃物の使用例について述べる。
医療用刃物をカバー42の刃体不使用位置Pで保管することができる。カバー42を刃体不使用位置Pから刃体使用可能位置Qに移動させると、刃体17がカバー42から突出するため、医療用刃物を使用することができる。カバー42を刃体不使用位置Pと刃体使用可能位置Qとの間で移動させることができるため、医療用刃物を再利用することができるが、カバー42をロック操作部36により刃体不使用位置Pで保持すると、カバー42の移動が永続的に阻止されて医療用刃物を再利用することができない。再利用できない状態で廃棄することが好ましい。また、ハンドル1に対し刃体17が交換不能に取り付けられている場合には一回の使用で廃棄することが好ましい。このように医療用刃物を使用する場合には、カバー42の各貫通孔50,51,54から突出する各摘み部25,26,27,28,29を把持することができる。なお、カバー42の各貫通孔50,51,54は蒸気滅菌に利用することもできる。
Next, an example of using a medical knife will be described.
The medical blade can be stored at the blade unused position P of the cover 42. When the cover 42 is moved from the blade non-use position P to the blade usable position Q, the blade 17 protrudes from the cover 42, so that a medical blade can be used. Since the cover 42 can be moved between the blade non-use position P and the blade usable position Q, the medical blade can be reused, but the cover 42 is not bladed by the lock operation unit 36. When held at the use position P, the movement of the cover 42 is permanently blocked and the medical blade cannot be reused. It is preferable to dispose of it in a non-reusable state. Further, when the blade body 17 is irreplaceably attached to the handle 1, it is preferable to dispose of it after one use. When the medical blade is used in this way, the knobs 25, 26, 27, 28, 29 protruding from the through holes 50, 51, 54 of the cover 42 can be gripped. The through holes 50, 51, and 54 of the cover 42 can also be used for steam sterilization.

本実施形態は下記の効果を有する。
(1) 医療用刃物を片手で握って使用する場合、ハンドル1を左右両側から挟んで持った手指をカバー操作部43aに当てがうとともに、カバー42の左右両貫通孔50,51から突出するハンドル1の左右両摘み部25,26,27,29にも当てがうことができる。ハンドル1の左右両摘み部25,26,27,29はカバー42を移動させても移動しないので、ハンドル1を持った手指が安定してカバー42の移動操作を行い易くすることができる。ハンドル1の左右両摘み部25,26,27,29はカバー42の左右両貫通孔50,51から突出しているため、手指を左右両摘み部25,26,27,29に当てがっても、カバー42の左右両側板部45,46を押え付けることを防止してカバー42の移動操作を行い易くすることができる。また、ハンドル1とカバー42との間に緩みがある場合でも、ハンドルに対し緩みのあるカバーを掴んで執刀する従来の場合と比較して、ハンドル1の左右両摘み部25,26,27,29をしっかりと掴んで使用することができるため、その緩みによる悪影響を受けにくくなって執刀時等の使い勝手を良くすることができる。
This embodiment has the following effects.
(1) When the medical blade is used by grasping it with one hand, the fingers held by sandwiching the handle 1 from both the left and right sides are applied to the cover operation portion 43a and protrude from the left and right through holes 50 and 51 of the cover 42. It can also be applied to the left and right knobs 25, 26, 27, 29 of the handle 1. Since the left and right knobs 25, 26, 27, and 29 of the handle 1 do not move even if the cover 42 is moved, the fingers holding the handle 1 can be stably moved and the cover 42 can be easily moved. Since the left and right knobs 25, 26, 27, 29 of the handle 1 protrude from the left and right through holes 50, 51 of the cover 42, even if the fingers are applied to the left and right grips 25, 26, 27, 29. It is possible to prevent the left and right side plate portions 45 and 46 of the cover 42 from being pressed against each other and facilitate the movement operation of the cover 42. Further, even if there is a slack between the handle 1 and the cover 42, the left and right knobs 25, 26, 27 of the handle 1 are compared with the conventional case where the cover with the slack is grasped with respect to the handle and the operation is performed. Since the 29 can be firmly grasped and used, it is less likely to be adversely affected by the loosening, and the usability at the time of operation can be improved.

(2) その場合、左右両側の摘み部25,26,27,29と貫通孔50,51とは、前後方向Xへ延設されているとともに、一対設けられて上下方向Zへ並設されている。ハンドル1を左右両側から挟んで持った手指を左右両摘み部25,26,27,29に当てがってカバー42を前後方向Xへ移動させる際に、左右両摘み部25,26,27,29を持つ位置を使用者の手指の大きさや長さの相違に応じてハンドル1の前後方向X及び上下方向Zで変えることができるため、カバー42の移動操作を行い易くすることができる。 (2) In that case, the knobs 25, 26, 27, 29 and the through holes 50, 51 on both the left and right sides are extended in the front-rear direction X, and are provided in pairs and arranged side by side in the vertical direction Z. There is. When the fingers held by sandwiching the handle 1 from both the left and right sides are applied to the left and right knobs 25, 26, 27, 29 to move the cover 42 in the front-rear direction X, the left and right knobs 25, 26, 27, Since the position where the 29 is held can be changed in the front-rear direction X and the up-down direction Z of the handle 1 according to the difference in the size and length of the user's fingers, the movement operation of the cover 42 can be facilitated.

(3) カバー42の下板部44にもハンドル1の下側の摘み部28が突出する貫通孔54を設けたので、ハンドル1を左右両側から挟んで持った手指を左右両摘み部25,26,27,29ばかりでなく下側摘み部28にも当てがうことができる。従って、ハンドル1を持った手指がより一層安定してカバー42の移動操作を行い易くすることができる。 (3) Since the lower plate portion 44 of the cover 42 is also provided with a through hole 54 from which the lower grip portion 28 of the handle 1 projects, the fingers holding the handle 1 sandwiched from both the left and right sides are held by the left and right grip portions 25, It can be applied not only to 26, 27, 29 but also to the lower knob 28. Therefore, it is possible to make it easier for the fingers holding the handle 1 to move the cover 42 more stably.

(4) ハンドル1の左右両側の摘み部25,27はカバー42の上板部43に面する指当部25b,27bを有しているので、ハンドル1を左右両側から挟んで持った手指をハンドル1の左右両摘み部25,26,27,29ばかりでなく、カバー42の上板部43に面する指当部25b,27bにも当てがうことができる。従って、ハンドル1を持った手指がより一層安定してカバー42の移動操作を行い易くするとともに執刀時等の使い勝手を良くすることができる。 (4) Since the knob portions 25 and 27 on both the left and right sides of the handle 1 have finger contact portions 25b and 27b facing the upper plate portion 43 of the cover 42, the fingers holding the handle 1 sandwiched from both the left and right sides can be held. It can be applied not only to the left and right knob portions 25, 26, 27, 29 of the handle 1, but also to the finger contact portions 25b, 27b facing the upper plate portion 43 of the cover 42. Therefore, the fingers holding the handle 1 can be more stably moved and the cover 42 can be easily moved, and the usability at the time of operation can be improved.

(5) ハンドル1の各摘み部25,26,27,28,29とカバー42の各貫通孔50,51,54とは、ハンドル1に対しカバー42を前後方向Xへ案内する案内部として兼用されているので、カバー42の案内機能として兼用することができるばかりでなく、ハンドル1及びカバー42の構造を簡単にすることができる。 (5) The knobs 25, 26, 27, 28, 29 of the handle 1 and the through holes 50, 51, 54 of the cover 42 are also used as guides for guiding the cover 42 in the front-rear direction X with respect to the handle 1. Therefore, not only can it be used as a guide function for the cover 42, but also the structure of the handle 1 and the cover 42 can be simplified.

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。
・ 前記実施形態において、左側の貫通孔50から突出する左側の摘み部25,26と、右側の貫通孔51から突出する右側の摘み部27,29とは、それぞれ、上下一対設けられているが、一または三以上設けてもよい。
In addition to the above-described embodiment, for example, the following configuration may be used.
In the above embodiment, a pair of upper and lower knobs 25 and 26 protruding from the left through hole 50 and a pair of right knobs 27 and 29 protruding from the right through hole 51 are provided, respectively. , One or three or more may be provided.

・ 前記実施形態において、左右両側の摘み部25,26,27,29と左右両側の貫通孔50,51とは、それぞれ、前後方向Xへ一連に延設されているが、前後方向Xへ複数に分断して延設してもよい。 -In the above-described embodiment, the knobs 25, 26, 27, 29 on both the left and right sides and the through holes 50, 51 on both the left and right sides are respectively extended in a series in the front-rear direction X, but a plurality of them in the front-rear direction X. It may be divided into two parts and extended.

・ 前記実施形態において下側の摘み部28と下側の貫通孔54を省略してもよい。
・ 前記実施形態のカバー42において上板部43の切込部56を省略してもよい。
・ 前記実施形態においては、ハンドル1のクリック凹部32,33を前後両側に設けているが、前後両側のうち一方にのみ設けてもよい。
-In the above embodiment, the lower knob portion 28 and the lower through hole 54 may be omitted.
-In the cover 42 of the above embodiment, the notch 56 of the upper plate 43 may be omitted.
-In the above embodiment, the click recesses 32 and 33 of the handle 1 are provided on both the front and rear sides, but they may be provided on only one of the front and rear sides.

・ 前記実施形態においては、カバー操作部43aをカバー42の上板部43に設けているが、それ以外に例えば、左側板部45と右側板部46と下板部44とのうちいずれかに設けてもよい。 In the above embodiment, the cover operation portion 43a is provided on the upper plate portion 43 of the cover 42, but other than that, for example, the left plate portion 45, the right plate portion 46, or the lower plate portion 44. It may be provided.

・ 前記実施形態においては、二股状に設けた左腕2と右腕3とを互いに重ねて左側板部11と右側板部12とにより一本のハンドル1としているが、一枚のハンドルを成形してその前端部に刃体を取り付けてもよい。 -In the above embodiment, the left arm 2 and the right arm 3 provided in a bifurcated shape are overlapped with each other to form one handle 1 by the left plate portion 11 and the right plate portion 12, but one handle is formed by molding. A blade may be attached to the front end thereof.

・ 前記実施形態において、ハンドル1の材質としては、例えば、ポリプロピレン樹脂やポリブチレンテレフタレート樹脂やABS樹脂などを採用することができる。また、カバー42の材質としては、ポリプロピレン樹脂やポリカーボネート樹脂やメタクリル樹脂やABS樹脂などを採用することができる。 -In the above embodiment, as the material of the handle 1, for example, polypropylene resin, polybutylene terephthalate resin, ABS resin, or the like can be adopted. Further, as the material of the cover 42, polypropylene resin, polycarbonate resin, methacrylic resin, ABS resin, or the like can be adopted.

・ カバー42については、透明樹脂や半透明の透過性樹脂で成形することが好ましいが、不透明樹脂で成形してもよい。
・ 前記実施形態においては、ハンドル1に対し刃体17を着脱不能に取り付けているが、着脱可能にまたは交換可能に取り付けてもよい。
The cover 42 is preferably molded with a transparent resin or a translucent transparent resin, but may be molded with an opaque resin.
-In the above embodiment, the blade body 17 is non-detachably attached to the handle 1, but it may be detachably or replaceably attached.

・ 前記実施形態において、ロック操作部36を省略してもよい。
・ 前記実施形態において、ハンドル1及びカバー42の材質としては、プラスチック以外に、例えばステンレス鋼やチタンなどの金属を採用することができる。
-In the above embodiment, the lock operation unit 36 may be omitted.
-In the above embodiment, as the material of the handle 1 and the cover 42, a metal such as stainless steel or titanium can be adopted in addition to plastic.

1…ハンドル、17…刃体、18…刃体の刃縁、19…刃体の背縁、25,26,27,28,29…ハンドルの摘み部、25b,27b…指当部、42…カバー、43…カバーの上板部(上部)、43a…カバー操作部、44…カバーの下板部(下部)、45,46…カバーの側板部(側部)、50,51,54…カバーの貫通孔、P…刃体不使用位置、Q…刃体使用可能位置、X…長手方向に沿う前後方向、Y…左右方向、Z…上下方向。 1 ... Handle, 17 ... Blade, 18 ... Blade edge, 19 ... Blade back edge, 25, 26, 27, 28, 29 ... Handle knob, 25b, 27b ... Finger pad, 42 ... Cover, 43 ... Cover upper plate (upper part), 43a ... Cover operation part, 44 ... Cover lower plate (lower part), 45, 46 ... Cover side plate (side), 50, 51, 54 ... Cover Through hole, P ... blade unused position, Q ... blade usable position, X ... front-back direction along the longitudinal direction, Y ... left-right direction, Z ... up-down direction.

Claims (5)

ハンドルとそのハンドルの頭部に取り付けた刃体を保護し得るカバーとを備えた医療用刃物において、このカバーは、ハンドルの外側に被せられてハンドルに対しハンドルの長手方向に沿う前後方向へ移動可能に支持され、刃体を保護し得る刃体不使用位置と、刃体をカバーから露出し得る刃体使用可能位置とを取り、前後方向に対し直交する左右方向の両側の側部を有し、このカバーの左右両側部にはハンドルの左右両側に設けた摘み部がカバーの外側へ突出する貫通孔を設け
前記ハンドルの左右両側の摘み部と前記カバーの左右両側部の貫通孔とは、それぞれ、複数設けられて前後方向及び左右方向に直交する上下方向へ並設されていることを特徴とするカバー付き医療用刃物。
In a medical blade with a handle and a cover that can protect the blade attached to the head of the handle, the cover is placed on the outside of the handle and moves back and forth along the longitudinal direction of the handle with respect to the handle. It has a blade-free position that can be supported and protects the blade, and a blade-useable position that can expose the blade from the cover, and has side parts on both sides in the left-right direction that are orthogonal to the front-back direction. However, on the left and right sides of this cover, through holes are provided so that the knobs provided on the left and right sides of the handle project to the outside of the cover .
A plurality of knobs on the left and right sides of the handle and through holes on the left and right sides of the cover are provided side by side in the vertical direction orthogonal to the front-rear direction and the left-right direction. Medical knife.
ハンドルとそのハンドルの頭部に取り付けた刃体を保護し得るカバーとを備えた医療用刃物において、このカバーは、ハンドルの外側に被せられてハンドルに対しハンドルの長手方向に沿う前後方向へ移動可能に支持され、刃体を保護し得る刃体不使用位置と、刃体をカバーから露出し得る刃体使用可能位置とを取り、前後方向に対し直交する左右方向の両側の側部を有し、このカバーの左右両側部にはハンドルの左右両側に設けた摘み部がカバーの外側へ突出する貫通孔を設け
前記カバーにおいて、前後方向及び左右方向に直交する上下方向の両側のうち、下側には前記刃体不使用位置で刃体の刃縁に面する下部を有し、このカバーの下部にはハンドルの下側に設けた摘み部がカバーの外側へ突出する貫通孔を設けたことを特徴とするカバー付き医療用刃物。
In a medical blade with a handle and a cover that can protect the blade attached to the head of the handle, the cover is placed on the outside of the handle and moves back and forth along the longitudinal direction of the handle with respect to the handle. It has a blade-free position that can be supported and protects the blade, and a blade-useable position that can expose the blade from the cover, and has side parts on both sides in the left-right direction that are orthogonal to the front-back direction. However, on the left and right sides of this cover, through holes are provided so that the knobs provided on the left and right sides of the handle project to the outside of the cover .
In the cover, of both sides in the vertical direction orthogonal to the front-rear direction and the left-right direction, the lower side has a lower portion facing the blade edge of the blade body at the position where the blade body is not used, and the lower portion of the cover has a handle. A medical blade with a cover, characterized in that a knob provided on the lower side is provided with a through hole that projects to the outside of the cover.
ハンドルとそのハンドルの頭部に取り付けた刃体を保護し得るカバーとを備えた医療用刃物において、このカバーは、ハンドルの外側に被せられてハンドルに対しハンドルの長手方向に沿う前後方向へ移動可能に支持され、刃体を保護し得る刃体不使用位置と、刃体をカバーから露出し得る刃体使用可能位置とを取り、前後方向に対し直交する左右方向の両側の側部を有し、このカバーの左右両側部にはハンドルの左右両側に設けた摘み部がカバーの外側へ突出する貫通孔を設け
前記カバーにおいて、前後方向及び左右方向に直交する上下方向の両側のうち、上側には前記刃体不使用位置で刃体の刃縁に対し対辺側になる背縁に面する上部を有し、前記ハンドルの左右両側の摘み部はこのカバーの上部に対しその上方で面する指当部を有していることを特徴とするカバー付き医療用刃物。
In a medical blade with a handle and a cover that can protect the blade attached to the head of the handle, the cover is placed on the outside of the handle and moves back and forth along the longitudinal direction of the handle with respect to the handle. It has a blade-free position that can be supported and protects the blade, and a blade-useable position that can expose the blade from the cover, and has side parts on both sides in the left-right direction that are orthogonal to the front-back direction. However, on the left and right sides of this cover, through holes are provided so that the knobs provided on the left and right sides of the handle project to the outside of the cover .
In the cover, of both sides in the vertical direction orthogonal to the front-rear direction and the left-right direction, the upper side has an upper portion facing the back edge which is opposite to the blade edge of the blade at the blade non-use position. A medical blade with a cover, wherein the knob portions on the left and right sides of the handle have finger contact portions facing above the upper portion of the cover.
前記ハンドルの左右両側の摘み部と前記カバーの左右両側部の貫通孔とは、前後方向へ延設されていることを特徴とする請求項1〜3のうちいずれか一つの請求項に記載のカバー付き医療用刃物。 The invention according to any one of claims 1 to 3, wherein the knobs on the left and right sides of the handle and the through holes on the left and right sides of the cover extend in the front-rear direction. Medical knife with cover. 前記ハンドルの左右両側の摘み部と前記カバーの左右両側部の貫通孔とは、ハンドルに対しカバーを前後方向へ案内する案内部として兼用されていることを特徴とする請求項に記載のカバー付き医療用刃物。 The cover according to claim 4 , wherein the knobs on the left and right sides of the handle and the through holes on the left and right sides of the cover are also used as guides for guiding the cover in the front-rear direction with respect to the handle. With medical knife.
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