JPH0975363A - Opening/closing structure for blade body insertion port part of discarded blade case for blade exchangeable scalpel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely house a discarded blade body in a clamper by forcedly closing a blade body insertion port at the time of no use and to easily open the blade body insertion port at the time of use. SOLUTION: Since a user separates a manipulator 18 when placing a clamper 1 while turning a port wall 3 downward or when carrying up the clamper 1 from this placing state, the manipulator 18 is turned by the elastic force of a leaf spring 26, an opening/closing cover body 17 is moved, and a blade body inserting port 4 is forcedly closed by a closing part 20 of the opening/closing cover body 17. Therefore, even when a discarded blade body in a housing chamber 5 of the clamper 1 passes through a blade body inserting path 8 and reaches the blade body inserting port 4, the discarded blade body is abutted to this closing part 20 so as not to be unexpectedly dropped from the blade body inserting port 4. When using a discarded blade case, a user can open the blade body inserting port 4 in counter to an opening hole 19 of the opening/closing cover body 17 only by pressing the manipulator 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste blade case for removing and discarding the blade body of a replaceable knife used for surgery or anatomy, and more particularly to a mouth for inserting the blade body. The present invention relates to an opening / closing structure of a part.

[0002]

2. Description of the Related Art In the conventional blade case for replaceable knife shown in Japanese Utility Model Laid-Open No. 6-23509, the first and second cases of the same publication are disclosed.
As shown in FIG. 9, the blade insertion opening 6 (blade insertion opening) of the protective wall 3 is always open regardless of whether it is used or not.

[0003]

When the waste blade case is not used, the user often places the gripping body 2 upright with the protective wall 3 facing downward and in contact with the mounting surface. The gripping body 2 is placed in this manner, and the gripping body 2 is placed in this mounted state.
When raising or lowering, the disposable blade (not shown) in the storage space 7 of the grip body 2 may accidentally drop from the blade insertion opening 6.

It is an object of the present invention to forcibly close the blade insertion opening when not in use so that the disposable blade can be reliably stored in the gripping body.

[0005]

The present invention will be described with reference to the reference numerals in the drawings (FIGS. 1 to 8) of the embodiments described later. The waste blade case according to the present invention is a blade body (2) of a replaceable knife (27).
8) is for discarding, and is configured as follows.

In the replaceable knife (27), the blade (2
8) has a wide insertion hole (30) and this insertion hole (3
The fitting hole (29) consisting of a narrow locking hole (31) continuous to the tip side of (0) is formed. The blade mounting portion (33) on which the blade (28) is overlapped is provided with a fitting protrusion (34) into which the fitting hole (29) of the blade (28) is fitted.
A locking groove (3) into which an edge portion (31a) of the locking hole (31) of the blade body (28) is engaged is provided on the tip end side of the fitting projection (34).
5) is formed.

In the waste blade case, the grip body (1) includes a storage chamber (5) for discarding the blade body (28) of the replaceable knife (27), a blade body insertion opening (4), and this blade. Body insertion port (4)
And a blade insertion path (8) communicating with the blade storage chamber (5). The blade insertion path (8) is pressed to remove the insertion hole (30) of the fitting hole (29) of the blade (28) from the fitting protrusion (34) of the blade mounting portion (33). The parts (6, 11) are provided.

The following structure for opening and closing the blade insertion opening is added to such a conventional waste blade case. The grip body (1) includes
A gripping wall (2) and a mouth wall (3) having a blade insertion opening (4) formed on one end side of the gripping wall (2) were provided. An opening / closing lid (17) capable of opening and closing the blade insertion opening (4) is attached to the mouth wall (3), and the opening / closing lid (17) is provided outside the gripping wall (2). An operating body (18) for opening and closing was attached. An elastic body (26) for urging the operating body (18) or the opening / closing lid (17) is provided on the gripping body (1) so that the blade insertion port (4) is closed by the opening / closing lid (17). .

When the waste blade case is not used, the user is
As shown in FIG. 3, the grip body (1) is placed in a state where the mouth wall (3) faces downward and is in contact with the mounting surface (P), and the grip body (1) is lifted from this mounted state. If
Since the operating body (18) is released, the blade insertion opening (4) is forcibly closed by the elastic force of the elastic body (26) at the opening / closing lid body (17) as shown in FIG. Therefore, the disposable blade body (not shown) in the storage chamber (5) of the grip body (1) abuts on the opening / closing lid body (17) and does not accidentally drop from the blade body insertion opening (4). On the other hand, when the waste blade case is used, the user merely operates the operating body (18) to open the blade insertion opening (4) as shown in FIGS. Therefore, unless the user intentionally operates the operating body (18) to open the blade insertion opening (4), the blade insertion opening (4) is closed.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A replaceable blade type waste blade case for a knife according to an embodiment of the present invention will be described below with reference to the drawings.

[Regarding the gripping body 1 of the waste blade case shown in FIGS. 1 to 3] The gripping body 1 is attached to the cylindrical gripping wall 2 and the front end side (one end side) of the cylindrical gripping wall 2. It has a mouth wall 3. The tubular gripping wall 2 includes an upper wall portion 2a and a lower wall portion 2b.
And a left wall portion 2c, a right wall portion 2d, and a rear wall portion 2e. A blade insertion port 4 is formed in the mouth wall 3. A blade housing chamber 5 is formed in the cylindrical grip wall 2.
As shown in FIGS. 3 and 4, inside the cylindrical gripping wall 2 slightly inside the blade insertion opening 4, a pair of left and right pressing portions 6 is provided at a corner between the mouth wall 3 and the lower wall portion 2b. And a guide groove 7 between the pressing portions 6 is continuous with the blade insertion opening 4. A blade insertion path 8 extends along the inner surface of the upper wall portion 2a between the pressing portion 6 and the guide groove 7 and the upper wall portion 2a.

As shown in FIGS. 3 and 4, the cylindrical gripping wall 2
A U-shaped cutout 9 is formed in the upper wall portion 2a, and an elastic plate portion 10 formed by the cutout 9 can be bent toward the blade insertion path 8 side. Inside the elastic plate portion 10, a pressing portion 11 is provided so as to protrude downward near both the left and right pressing portions 6.

An operating knob 12 is mounted on the upper wall portion 2a of the cylindrical gripping wall 2. A guide hole 13 is formed in the upper wall portion 2a so as to extend in the front-rear direction behind the elastic plate portion 10. A protrusion 14 formed inside the operation knob 12 is inserted into the guide hole 13, and a tension coil spring 15 is connected between the protrusion 14 and the rear end of the upper wall 2a in the tubular grip wall 2. Has been done. Therefore, the operation knob 12 is moved rearward along the guide hole 13 by the elastic force of the tension coil spring 15 and stopped. Further, as shown in FIG. 8, when the operation knob 12 is moved forward against the elastic force of the tension coil spring 15,
The pressing surface 12a inside the operation knob 12 is the elastic plate 1
Since it abuts on the pressure receiving surface 10a of 0, the elastic plate portion 10 bends toward the blade insertion path 8 side against the elastic force thereof. Operation knob 12
At any movement position, the notch 9 and the guide hole 13 of the upper wall portion 2a are closed, and they are not exposed to the outside of the upper wall portion 2a.

[Mouth Opening / Closing Member 16 Shown in FIGS. 1 to 3] The mouth opening / closing member 16 includes an opening / closing lid body 17 attached to the outside of the mouth wall 3 and an operating body attached to the outside of the gripping wall 2. 18 and.

The opening / closing lid 17 is in the shape of a rectangular plate, is applied to the front surface of the mouth wall 3 and is supported so as to be vertically movable. In the opening / closing lid 17, an opening 19 is formed in the vicinity of a substantially central portion of the opening / closing lid 17, and a closing portion 20 is formed adjacent to the opening 19 and between the opening and the upper edge.

The operating body 18 has no U-shaped cross section from the lower wall portion 21 and the left and right wall portions 22. The lower wall portion 21 faces the lower wall portion 2b of the gripping wall 2 and The left and right wall portions 22 are applied to the left and right wall portions 2c and 2d of the grip wall 2 as shown in FIG. The operating body 18 is rotatably supported by the support shaft 23 on the left and right wall portions 22 with respect to the left and right wall portions 2c and 2d, and the lower wall portion 21 moves up and down relative to the lower wall portion 2b in accordance with the rotation. And move away from each other.

An interlocking hole 24 is formed at the lower end of the mouth wall 3 as shown in FIG. A bifurcated interlocking portion 25 is provided at the lower end of the opening / closing lid body 17 so as to project through the interlocking hole 24 of the mouth wall 3 toward the operating body 18. An interlocking portion 21a is provided at the front end of the lower wall portion 21 of the operation body 18,
It is engaged in the bifurcated interlocking portion 25. Therefore, when the operating body 18 is rotated, the interlocking portion 21a moves into the forked interlocking portion 25.
They move in the interlocking hole 24 while relatively moving inside, so that the opening / closing lid 17 opens and closes in the vertical direction.

Between the lower wall portion 21 of the operating body 18 and the lower wall portion 2b of the gripping wall 2, a leaf spring 26 (elastic body) is attached to the lower wall portion 2b. The operation body 18 is biased by the elastic force, and the closing portion 20 of the opening / closing lid body 17 closes the blade body insertion port 4.

[Replaceable Blade Type Knife 27 Shown in FIG. 5] The blade body 28 of the replaceable blade type knife 27 is formed with an elongated fitting hole 29 near the base end 28a thereof. This fitting hole 2
9 is composed of a wide insertion hole 30 and a narrow locking hole 31 continuous to the tip side thereof. A blade body mounting portion 33 on which the blade body 28 is superposed is formed at the tip of the handle 32 of the replaceable blade knife 27, and a fitting hole 29 of the blade body 28 is fitted on the front side of the blade body mounting portion 33. The fitting protrusion 34 is formed.
Locking grooves 35 are formed on both sides of the outer periphery of the fitting protrusion 34 toward the tip side.

When the blade body 28 is attached to the handle 32, the blade body 28 is overlapped with the blade body attachment portion 33 so that the fitting hole 29 of the blade body 28 is fitted into the fitting protrusion 34 of the blade body attachment portion 33. Apply,
When the blade 28 is slid from this state, both edge portions 31a of the locking hole 31 of the fitting hole 29 are engaged with both locking grooves 35 of the fitting projection portion 34, and the fitting hole 29 is fitted and projected. It is fitted into the portion 34.

[Case where the blade body 28 of the replaceable knife 27 is discarded after its use] As shown in FIGS. 6 and 7, the user holds the gripping wall 2 and resists the elastic force of the leaf spring 26. When the operation body 18 is rotated in the direction of the arrow F, the opening / closing lid body 17 moves, the blade body insertion opening 4 moves away from the closed portion 20, and the opening 19 is opened.
To face.

With the front side of the replaceable knife 27 facing upward, the blade attachment portion 33 is inserted into the blade insertion opening 4 as shown in FIG. 7 (a).
To insert. Fitting projection 3 of blade 28 and blade mounting portion 33
When the blade 4 is inserted into the blade insertion path 8 from the blade insertion opening 4, the left and right sides of the base end portion 28a of the blade 28 are placed on both pressing portions 6, as shown in FIG. 7B. Then, as shown in FIG. 8, when the operation knob 12 is pushed forward, the elastic plate portion 10
Bends toward the blade insertion path 8 side, and the fitting protrusion 34 is pushed downward by the pressing portion 11 of the elastic plate portion 10. Therefore, the base end portion 28a of the blade body 28 supported on both pressing portions 6 is bent upward and lifted up from the blade body mounting portion 33, and the insertion hole 30 of the fitting hole 29 of the blade body 28 is fitted into the fitting projection portion 34. Get out of. afterwards,
When the handle 32 is pulled out from the grip body 1, both edges 31 a of the locking hole 31 of the fitting hole 29 are disengaged from the locking groove 35 of the fitting protrusion 34, and the fitting protrusion 34 is pulled out of the fitting hole 29. The blade body 28 is separated from the blade body attachment portion 33, and only the blade body 28 is inserted into the blade body insertion path 8
It falls off and remains in the storage room 5. In addition, when the operation knob 12 is released, the state returns to the state of FIG.

This embodiment has the following features (a) to (d). (B) When the waste blade case is not used, the user may put the gripping body 1 upright with the mouth wall 3 facing downward and in contact with the mounting surface P, as shown in FIGS. Many. When the grip body 1 is placed in this way or when the grip body 1 is lifted from this mounted state, the user releases the operation body 18 of the mouth opening / closing member 16, so that the operation body 18 moves toward the leaf spring 26. The opening / closing lid 17 of the mouth opening / closing member 16 moves by the elastic force, and the blade insertion opening 4 of the mouth wall 3 is forcibly closed by the closing portion 20 of the opening / closing lid 17 as shown in FIG. To be Therefore, the disposable blade body (not shown) in the storage chamber 5 of the grip body 1 passes through the blade body insertion path 8 and the guide groove 7 and then the blade body insertion port 4
Even if it reaches, it will not come into contact with the closed portion 20 and accidentally fall from the blade insertion port 4, and can be reliably stored in the grip body 1.

(B) When using the waste blade case, the user
As shown in FIGS. 7 and 8, by simply pressing the operating body 18,
The blade insertion port 4 can be easily opened by facing the opening 19 of the opening / closing lid 17.

(C) The blade insertion opening 4 by the opening / closing lid 17.
Since the leaf spring 26 for urging the operating body 18 is attached to the grasping body 1 so that the operating body 18 is closed, the blade inserting opening is opened unless the user intentionally operates the operating body 18 to open the blade inserting opening 4. Four
Can be closed. Therefore, the disposable blade body (not shown) does not drop accidentally from the blade body insertion port 4 and is reliably stored in the grip body 1.

(D) Since the operating body 18 for opening and closing the opening / closing lid 17 is attached to the outside of the grip wall 2, the user is
It is very convenient to use because the open / close lid 17 can be opened / closed by operating the operating body 18 while holding the replaceable knife 27 with one hand and holding the holding wall 2 with the other hand. .

In addition to the above embodiment, the following (a) to (c)
It may be configured as follows. (A) As the elastic body for urging the opening / closing member 16 (the opening / closing lid body 17, the operating body 18) to close the blade body insertion opening 4 by the opening / closing lid body 17, other than the leaf spring 26 of the above-described embodiment. , Adopt the following.

1) Instead of the leaf spring 26, a compression coil spring is attached between the operating body 18 and the grip wall 2. 2) Instead of the elastic body for urging the operating body 18, the opening / closing lid body 1
7 is changed to an elastic body (a leaf spring, a coil spring, or the like) that biases 7.

3) In the operation body 18 or the opening / closing lid body 17, the operation body 18 or the opening / closing lid body 17 itself is made to have elasticity and also serves as an elastic body. (B) The operating body 18 can be moved in parallel in the moving direction of the opening / closing lid 17. In this case, the interlocking portion between the operation body 18 and the opening / closing lid body 17 is integrated.

(C) In addition to the above-mentioned embodiment, the method of removing the blade body of the waste blade case is, for example, an actual flat blade 4-50.
It can also be applied to the type shown in 011. A technical idea (other than claims) that can be understood from each embodiment will be described together with effects.

(A) In claim 1, the operating body 18 is rotatably supported so as to approach and separate from the gripping wall 2, and the opening / closing lid body 17 is provided outside the mouth wall 3 along the same. Interlocking portions 21a and 25, which are movably supported and are relatively movable, are provided between the operating body 18 and the opening / closing lid body 17. Therefore, the operation body 18 and the opening / closing lid body 17 can be compactly arranged outside the grip body 1, and the movement of the operation body 18 can be reliably transmitted as the opening / closing movement of the opening / closing lid body 17.

[0032]

EFFECTS OF THE INVENTION According to the disposable blade type waste blade case of the present invention, the blade insertion opening (4) is provided with the opening / closing lid (1) when not in use.
7) Forcefully close the disposable blade by the grip body (1)
It can be securely stored inside, and the blade insertion opening (4) can be easily opened during use.

[Brief description of drawings]

FIG. 1 is a perspective view showing a non-use state of a disposable blade type waste blade case according to the present embodiment.

FIG. 2 (a) is a side view showing a state where the waste blade case of FIG. 1 is placed on a mounting surface and stood up, and FIG. 2 (b) is a rear view of the same.

FIG. 3 is a sectional view of FIG.

4 is a partially cutaway front view showing a state in which an operation knob is removed from the waste blade case of FIG.

5A is an assembly plan view showing a replaceable knife according to the present embodiment, and FIG. 5B is an exploded partial perspective view of the same.

FIG. 6 is a perspective view showing a usage state of the waste blade case of FIG. 1.

7A is a sectional view showing a state in which a replaceable knife is inserted in the waste blade case of FIG. 1, and FIG. 7B is a sectional view taken along line XX of FIG.

FIG. 8 is a cross-sectional view showing a state where the operating knob is moved from the state of FIG. 7A to remove the blade body from the replaceable blade type knife.

[Explanation of symbols]

1 ... Gripping body, 2 ... Gripping wall, 3 ... Mouth wall, 4 ... Blade insertion port,
5 ... Blade storage chamber, 6 ... Pressing part, 8 ... Blade insertion path, 16 ...
Mouth opening / closing member, 17 ... Opening / closing lid, 18 ... Operating body, 26 ...
Leaf spring as an elastic body, 27 ... Spare blade knife, 28 ... Blade body, 29 ... Fitting hole, 30 ... Insertion hole, 31 ... Locking hole, 33
... blade body mounting portion, 34 ... fitting projection portion, 35 ... locking groove.

Claims (1)

[Claims] 1. The blade (28) has a wide insertion hole (3).
0) and a narrow engaging hole (31) continuous to the tip side of the insertion hole (30) to form a fitting hole (29), and the blade body (28) is superposed. In the mounting part (33),
A fitting projection (34) into which the fitting hole (29) of the blade body (28) is fitted is provided, and the tip end side of the fitting projection (34) is
A replaceable knife (27) having a locking groove (35) into which the edge (31a) of the locking hole (31) of the blade (28) is inserted. A gripping body having a storage chamber (5) for discarding, a blade insertion port (4), and a blade insertion path (8) communicating the blade insertion port (4) with the blade storage chamber (5) (1) is provided, and the blade body (2) is provided in the blade body insertion path (8).
In the waste blade case provided with the pressing portions (6, 11) for removing the insertion hole (30) of the fitting hole (29) of 8) from the fitting protrusion (34) of the blade mounting portion (33), The grip body (1) is provided with a grip wall (2) and a mouth wall (3) having a blade insertion port (4) formed at one end side of the grip wall (2). ) Is attached with an opening / closing lid (17) capable of opening / closing the blade insertion opening (4), and an operating body for opening / closing the opening / closing lid (17) outside the gripping wall (2). (18) is attached, and an elastic body (26) for urging the operation body (18) or the opening / closing lid body (17) is gripped so that the blade body insertion opening (4) is closed by the opening / closing lid body (17). (1) The opening / closing structure of the blade insertion opening in the disposable blade type waste blade case for blades provided in (1).