JP2015228882A - Clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clamp, when occluding a flow path of a tube, capable of reliably occluding the flow path of the tube without applying strong force.SOLUTION: The clamp includes a base part 2 and a movable part 3, where the movable part 3 includes a pressing assistance part (10 or 20) formed on an upper part U side. The pressing assistance part (10 or 20) has at least any of a crest portion (10T or 20T) and a top surface portion (10PL or 20PL). Alternatively, the pressing assistance part (10 or 20) has both of the crest portion (10T or 20T) and a top surface portion (10PL or 20PL). When having the crest portion (10T or 20T), the clamp has a base end-side inclined portion (10TPE or 20TPE) at the base end PT side of the crest portion (10T or 20T).

Description

The present invention relates to an improvement of a clamp, and relates to an improvement of a clamp that can reliably close a tube without applying a strong force to the clamp when closing a flow path of the tube inserted through the clamp.
The clamp of the present invention includes, for example, a body fluid circulation circuit having a blood tube (for example, a hemodialysis circuit, a blood purification circuit, etc.), a blood collection device having a blood bag (blood storage device), and a pharmaceutical having an infusion solution (medical solution) bag It can be suitably used by being mounted in the middle of a tube that is a component part of various medical devices such as related instruments (for example, high-calorie infusion containers, medicinal solution containers) and infusion / transfusion sets.

As a conventional known clamp, a clamp shown in FIGS. 15 to 16 (hereinafter, known clamp 101) is widely used.
Further, the applicant described in Patent Document 1 that when the tube flow path inserted through the clamp is closed, the tube can be reliably closed without rattling, and the closed state of the tube flow path can be maintained for a long time. (Hereinafter, known clamp 201) has been disclosed.

JP 2013-176543 A (refer to claims, FIGS. 1 to 10)

The usage method of the well-known clamp 101 is demonstrated using FIGS. (The extension line of the terminal DE-base end PE on the top surface of the movable part 103 is HL103, the extension line of the terminal DE-base end PE on the bottom surface of the base part 102 is HL102, and the extension line HL102 is substantially perpendicular to the upper U-lower D direction. (An extension line intersecting with VL102 is designated as VL102.)

(1) As shown in FIG. 15, the operator (doctor or nurse) operates the top surface of the movable portion 103 on the end DE side [the portion having a plurality of minute protrusions is a so-called “pressing portion”] With the thumb and the index finger on the end DE side of the base 102, and with the thumb along the extension line VL102 so that the extension line HL103 is substantially parallel to the extension line HL102, the arrow direction (lower vertical direction) Force on. (See arrow <1> direction in FIG. 16)
(2) The movable part side engaging part 108 moves in the direction of the base side engaging part 109, which is the lower D direction, as shown by an arrow <2> in FIG. 16, and pushes the base side engaging part 109 toward the terminal DE side. Then, it is deformed to the terminal DE side as shown by arrow <3>.
(3) When the movable portion side engaging portion 108 is pushed to the lower side D as indicated by the arrow <4> and the top portion 108T of the movable portion side engaging portion 108 gets over the base side engaging auxiliary portion 109H, the arrow <5 > To further engage the base portion side engaging wall 109W with the top portion 108T of the movable portion side engaging portion 108. As a result, the liquid flow path of the tube T is closed.

In the known clamp 101, the top surface on the terminal DE side of the movable portion 103 is a so-called “pressing portion”, and the top portion 108T of the movable portion side engaging portion 108 is formed from the upper D direction as indicated by an arrow <2> in FIG. As indicated by the arrow <3>, the base side engaging portion 109 is pushed and expanded toward the terminal DE side.
At this time, the top part 108T of the movable part side engaging part 108 is in contact with the top part 109T or the vicinity of the top part 109T of the base part side engaging part 109, and then the top part 109T or the vicinity of the top part 109T is in contact with the proximal end side wall 109WPE, The base side engaging part 109 is pushed and expanded.
In this way, since the base side engaging portion 109 is pushed and expanded at the most distal end DE (the top portion 108T) of the movable portion side engaging portion 108 from the upper D direction, a strong force is required thereby.
For this reason, it becomes difficult to shift to the arrows <4> and <5> in FIG. As a result, when closing the flow path of the tube T inserted through the clamp 101, it was necessary to apply a strong force to the clamp 101, and it was difficult to engage. In particular, nurses with weak fingertips pointed out that it was difficult to engage.
A similar problem has been pointed out in the known clamp 201 described in Patent Document 1.

Therefore, as a result of intensive studies to solve the above problems, the present inventor has reached the following invention.
[1] The present invention has a base (2) and a movable part (3),
The base part (2) forms a base end connection part (7PE) on the base end (PE) side, the base end connection part (7PE) forms a base end opening (OPE),
The base (2) forms a terminal linking part (7DE) on the terminal (DE) side, the terminal linking part (7DE) forms a terminal opening (OPE),
Forming the movable part (3) on the upper side (U) side of the proximal end connecting part (7PE);
Forming a base side engaging portion (9) on the upper side (U) side of the end connecting portion (7DE);
The base portion (2) forms a base side tube pressing portion (5) on the upper (U) side, and the base side tube pressing portion (5) has a base side tube pressing portion protrusion (on the upper (U) side ( 5T),
The movable part (3) forms a movable part side engaging part (8) on the end (DE) side,
The movable part (3) forms a movable part side tube pressing part (6) on the lower part (D) side,
The movable part side tube pressing part (6) forms a movable part side tube pressing part projection (6T) on the lower part (D) side,
The movable part (3) forms a pressing auxiliary part (10, 20) on the upper U side,
The pressing auxiliary part (10, 20) has at least one of the top part (10T, 20T) or the top part (10PL, 20PL), or both the top part (10T, 20T) and the top part (10PL, 20PL). Have
When it has the said top part (10T, 20T), the clamp (1, 11) which has a base end side inclination part (10TPE, 20TPE) in the base end (PE) side of the said top part (10T, 20T) is provided.

[2] In the present invention, an extension line of the movable part (3) top surface (DE) -base end (PE) is defined as an extension line (HL3),
An extension line of the terminal end (DE) -base end (PE) of the base side inclination (10 TPE, 20 TPE) is defined as an extension line (TL),
When the angle at which the extension line (TL) and the extension line (HL3) intersect is defined as an angle (θ1),
The said angle ((theta) 1) provides the clamp (1, 11) as described in [1] formed in 10 degrees-60 degrees.
[3] In the present invention, an extension line of the base (2) top end (DE) -base end (PE) is defined as an extension line (HL2),
The uppermost point of the base side tube pressing portion protrusion (5T, 15T) is defined as a fulcrum (5TP),
Extending the extension line (HL2) and the extension line that intersects the upper (U) -lower (D) direction substantially perpendicularly and passes over the fulcrum (5TP) of the base side tube pressing part protrusion (5T, 15T) Line (VL5),
The position on the most terminal (DE) side of the movable part (3) is determined as position PS: 0,
When the position on the most proximal end (PE) side of the movable part (3) is determined as a position PS: 100,
The top (10T, 20T) provides the clamp (1, 11) according to [1] or [2] located between positions PS: 15-60.
[4] The present invention defines an extension line (VL3) as an extension line that intersects the extension line (HL3) and the upper (U) -lower (D) direction substantially perpendicularly.
The distance extended from the top (10T, 20T) to the movable part (3) top surface substantially parallel to the extension line (VL3) is defined as the height (H) of the pressing auxiliary part (10, 20),
(N): The length of the end (DE) -base end (PE) of the movable part (3) is defined as the length (L1),
Length (L1): The clamp (100) according to any one of [1] to [3], wherein the height (H) of the pressing auxiliary portion (10, 20) is 20 to 50 with respect to 100 (length). 1, 11).
[5] In the present invention, the length of the movable part (3) in the first side part (S1) -second side part (S2) direction is defined as a length (L2),
The length in the first side portion (S1) -second side portion (S2) direction of the pressing auxiliary portion (10) is defined as a length (L3),
For the length (L2): 100, the length (L3) provides the clamp (1, 11) according to any one of [1] to [4] formed in 95-105.

[6] In the present invention, the pressing assisting portion (10, 20) is formed in any one of a substantially triangular shape, a substantially rectangular shape, and a curved slope, and consists of at least one or more of these [1]. To the clamp (1, 11) according to any one of [5].
[7] The present invention provides the clamp (1, 11) according to any one of [1] to [6], in which a guide part (18G) is formed in the movable part side engaging part (8, 18). To do.
[8] In the present invention, the base side engaging portion (9) includes the base side engaging auxiliary portion (9H) and the base side engaging wall (9W). The described clamp (1, 11) is provided.
[9] In the present invention, the movable part side engaging part (18) has a movable part side engaging auxiliary part (18H) and a movable part side engaging wall (19W),
The base-side engagement portion (19) includes a base-side engagement assisting portion (19H) and a base-side engagement wall (19W) according to any one of [1] to [7]. 11).

The clamps (1, 11) according to the present invention have the base side engagement portions (9, 19) (diagonal) from the distal side walls (8WDE, 18WDE) of the movable portion side engagement portions (8, 18) from (diagonal direction). It is not necessary to apply a strong force.
Subsequent movement of the movable portion side engaging portion (8, 18) from the lower D side to the terminal DE side and the accompanying deformation of the base side engaging portion (9, 19) to the terminal DE side (see FIG. 8, 10, and 12 arrows <4> and <5>) can be easily performed, and the movable portion side engaging portion (8, 18) and the base side engaging portion (9, 19) are engaged. Can be done lightly.
As described above, when the flow path of the tube T inserted through the clamp (1, 11) is closed, the tube T can be reliably closed without applying a strong force to the clamp (1, 11).

FIG. 1 is a perspective view of a clamp 1 according to a first embodiment of the present invention (hereinafter, the same applies to FIGS. 2 to 5) viewed from the direction of the first side S1-upper U-base end PE. FIG. 2 is a side view of the clamp 1 of FIG. 1 viewed from the direction of the first side S1. FIG. 3 is a partially enlarged side view of the clamp 1 of FIG. FIG. 4 is a side view showing the angle θ1 and the like in FIG. FIG. 5 is a conceptual diagram of the clamp 1 of the present invention. 6A to 6I are schematic views illustrating an example of the pressing assisting portion 10 of the present invention. FIG. 7 is a side view showing how to use (handle) the clamp 1 of FIG. FIG. 8 is a side view showing the order of usage of the clamp 1 of FIG. 2 with arrows. FIG. 9 is a perspective view of the clamp 1 of FIG. 1 [only the pressing assist portion 10 is formed in the form of FIG. 6H] viewed from the first side S1-upper U-base end PE direction. FIG. 10 is a side view of the usage and order of the clamp 1 of FIG. 9 indicated by arrows. FIG. 11 is a perspective view of the clamp 11 of the second embodiment of the present invention (hereinafter, the same applies to FIGS. 12 to 14) as seen from the direction of the first side S1-upper U-base end PE. FIG. 12 is a side view of the clamp 11 of FIG. 11 viewed from the first side S1 direction. FIG. 13 is a side view showing the angle θ1 and the like in FIG. FIG. 14 is a side view showing the order of usage of the clamp 11 of FIG. 12 by arrows. FIG. 15 is a side view of a conventional known clamp 101. FIG. 16 is a side view showing the order of use of the clamp 101 of FIG. 16 with arrows.

In order to facilitate understanding of the clamps (1, 11) of the present invention, the following definitions are provided.
The code | symbol attached | subjected to the claim of this invention and description of the invention is described in order to make an understanding of the clamp (1, 11) of this invention easy, and a code | symbol itself does not specify invention.
The clamps (1, 11) of the present invention have a longitudinal L direction, an upper U-lower D direction that intersects the longitudinal L direction substantially perpendicularly, and a side portion S that intersects the upper U-lower D direction substantially perpendicularly. Has a direction.
In the present invention, “terminal DE (side or direction)” indicates one direction in the longitudinal L direction. For example, as shown in FIGS. 1 to 2, the movable portion side engaging portion 8 and the base portion engaging portion 9. Means the end on the side that engages, that is, the end on the end connecting portion 7DE side.

In the present invention, the “proximal end PE (side or direction)” indicates one direction in the longitudinal L direction, for example, as shown in FIGS. 1 to 2, opposite to the “terminal DE (side or direction)”. End, that is, the end on the base end connecting portion 7PE side.
The longitudinal L direction is also referred to as the terminal DE-proximal PE direction.

In the present invention, the “first side portion S1 (side or direction)” indicates one direction of the side portion S direction, for example, as shown in FIG. Direction (see broken line arrow in the figure). Further, it means the direction of the left end portion of the clamp 1 (see the broken line arrow in the figure) when viewed from the base end PE direction.
In the present invention, the “second side portion S2 (side or direction)” indicates one direction of the side portion S direction, for example, as shown in FIG. Direction (see broken line arrow in the figure). Further, it means the direction of the right end portion of the clamp 1 (see the broken line arrow in the figure) when viewed from the base end PE direction.

In the present invention, the “upper U (side or direction)” indicates one direction of the side portion S direction, for example, as shown in FIGS. 1 to 2, for example, a direction extending upward (see the broken line in the figure). means.
In the present invention, “lower part D (side or direction)” indicates one direction of the side part S direction, for example, as shown in FIGS. 1 to 2, for example, a direction extending downward (see the broken line in the figure). means.

[Clamp (1, 11)]
The clamp 1 of the first embodiment of the present invention is shown in FIGS. 1 to 10, and the clamp 11 of the second embodiment is shown in FIGS.
Hereinafter, a description will be given with reference to FIGS.
The description and drawings of the clamp 11 of the second embodiment are the same as or substantially the same as those of the clamp 1 of the first embodiment in order to avoid complication of the reference numerals.

[Clamp 1 of the first embodiment]
As shown in FIGS. 1 to 2, the clamp 1 of the present invention has a base portion 2 and a movable portion 3.
In the description of the present invention, “having” an “arbitrary member (component)” in this way has substantially the same meaning as “having”, “including” at least the “arbitrary member (component)”, and the like. is there.
[Base 2]
As shown in FIGS. 1 to 2, the base 2 is formed in a so-called “substantially plate shape” on the lower portion D side. In addition, the base 2 may be referred to as a bottom, a substrate, or a fixed part.

The base portion 2 forms a base end connection portion 7PE on the base end PE side.
In the description of the present invention, “another member (component)” is “formed” at one end of “arbitrary member (component)” in this way is “connected”, “coupled”, “extended” ”,“ Arrangement ”and the like.
The proximal end connecting portion 7PE is curved (also referred to as a bend) from the lower D side toward the proximal end PE side and further toward the upper U side.
The proximal end connecting portion 7PE forms an opening OPE.
In the description of the present invention, “the opening” is “formed” in the “arbitrary member (component)” as described above in any form at any position of the “arbitrary member (component)”. It means that at least one “opening” may be formed.
Furthermore, the movable part 3 is formed in the upper part U side of the base end connection part 7PE.

The base 2 forms a terminal connecting portion 7DE on the terminal PE side.
The end connecting portion 7DE is curved from the lower D side toward the terminal DE side and further toward the upper U side.
The end connecting portion 7DE forms the end opening ODE.
The end connecting portion 7DE forms a base side engaging portion 9 on the upper U side.
The base side engagement portion 9 forms a base side engagement assisting portion 9H on the base end PE side.
The base side engagement assisting portion 9H is formed in a so-called “convex shape” (or a projecting shape or a projecting shape) in the illustrations of FIGS. The base side engagement assisting portion 9H may be formed in a concave shape.
The wall on the terminal DE side in the vicinity of the base side engagement assisting part 9H serves as the base side engagement wall 9W. (Function.)

The base 2 forms a base side tube pressing portion 5 on the upper U side.
The base side tube pressing part 5 forms a base side tube pressing part protrusion 5T on the upper U side.
As illustrated in FIGS. 1 to 2, the base-side tube pressing portion 5 is formed in a so-called “substantially triangular shape” so as to taper toward the upper U side when viewed from the first side portion S1 direction. Yes.
Furthermore, the base side tube pressing part 5 forms a base side tube pressing part projection 5T on the upper U side.

[Moving part 3]
The movable part 3 is formed in a so-called “substantially plate shape”. The movable part 3 may be referred to as a top, a movable plate, or a sealing part.
The movable part 3 forms a movable part side engaging part 8 on the terminal DE side.
The movable portion side engaging portion 8 is formed in a so-called “substantially triangular shape” so as to be tapered toward the terminal DE side.
It has a top 8T on the uppermost U side on the most terminal DE side, and an end side wall 8WDE inclined on the lower D side of the top 8T.

The movable part 3 forms a movable part side tube pressing part 6 on the lower part D side. As shown in FIGS. 1 to 2, the movable portion side tube pressing portion 6 is formed in a so-called “substantially triangular shape” so as to be tapered toward the lower portion D side when viewed from the first side portion S1 direction. Yes.
Furthermore, the movable part side tube pressing part 6 forms the movable part side tube pressing part protrusion 6T on the lower part D side.

A feature of the clamp 1 of the present invention is that a pressing assisting portion 10 is formed on the upper portion U side of the movable portion 3.
The shape of the pressing assisting part 10 only needs to have at least one of the top part 10T or the top surface part 10PL. Or you may have both the top part 10T and the top | upper surface part 10PL.
When it has the top part 10T, what is necessary is just to have the base end side inclination part 10TPE in the base end PE side of the said top part 10T.

Examples of the auxiliary pressing portion 10 include the examples shown in FIGS.
The pressing assisting portion 10 in FIG. 6A is formed in a so-called “substantially triangular shape” so as to rise from the lower portion D to the upper U direction and taper when viewed from the first side portion S1 direction. The substantially triangular shape may be anything as long as it has a top portion 10T and a base end side inclined 10TPE (down from the top portion 10T to the base end PE at the base end side PE of the top portion 10T).
6A has a base-side inclined 10TPE that descends from the top 10T to the base-side PE at the base-end PE of the top 10T, and a terminal-side side from the top 10T to the terminal-side DE of the top 10T. It has a terminal slope 10TDE down to DE.

6 (B) has a top surface portion 10PL on the terminal DE side of the top portion 10T, and a base-side slope that descends from the top surface portion 10PL to the base-end side PE on the base-end side PE of the top-surface portion 10PL. It has 10 TPE and has a terminal side wall 10WDE that hangs substantially perpendicularly to the terminal side DE of the top surface portion 10PL.
As shown in FIG. 6B, in the case of having the top surface portion 10PL and the base end side inclination 10TPE, these boundaries (the base end PE side of the top surface portion 10PL and the terminal DE side of the base end side inclination 10TPE) are the top portion 10T and Become.
The pressing assisting portion 10 in FIG. 6C has a proximal-side inclined 10TPE that descends from the top 10T to the proximal-side PE on the proximal-side PE of the top 10T, and hangs substantially perpendicular to the distal-side DE of the top 10T. It has a terminal side wall 10WDE.
The pressing assisting portion 10 in FIG. 6D has a substantially square shape on the distal end side and a substantially triangular shape in FIG. 6C on the proximal end side. Both have a top 10T and a proximal slope 10TPE.

The pressing assisting part 10 in FIG. 6 (E) is a structure in which a tall substantially square is arranged on the distal end side and a substantially triangular shape in FIG. 6 (C) is arranged on the proximal end side. Both have a top 10T and a proximal slope 10TPE.
The pressing assisting portion 10 in FIG. 6F is configured by arranging three substantially squares in order from the highest to the lowest from the distal side toward the proximal side.
The pressing assisting part 10 in FIG. 6G has a proximal-side inclined 10 TPE that is gently curved and inclined from the distal side toward the proximal side.
As described above, the top portion 10T is positioned on the uppermost portion U side in the form having a substantially triangular shape, a substantially quadrangular shape, or a curved inclination (see FIG. 6G).

The pressing assisting part 10 in FIG. 6H rises in the upper U direction from the lower part D when viewed from the first side part S1 direction in a substantially square shape, and is formed in a so-called “substantially rectangular shape”.
The pressing assisting part 10 in FIG. 6 (H) is an example having only the top surface part 10PL and not having the top part 10T and the base end side inclination 10TPE.
It has a distal side wall 10WDE that hangs substantially perpendicularly to the distal side DE of the top surface part 10PL, and a proximal side wall 10WPE that hangs substantially perpendicularly to the proximal side PE.
6 (I) includes three pressing assisting portions 10 shown in FIG. 6 (H) arranged from the distal end side toward the proximal end side in the order from tall to low.

As shown in FIGS.
(A) An extension line of the terminal DE-base end PE of the top surface of the movable part 3 is defined as HL3 (hereinafter, extension line HL3).
(B) The extension line of the terminal DE-base end PE of the base part 2 top surface is defined as HL2 (hereinafter, extension line HL2).
(C) An extension line of the terminal DE-base end PE of the base side inclination 10 TPE is defined as TL (hereinafter, extension line TL). As shown in FIGS. 6D to 6F, when there are a plurality of base end side inclinations 10TPE,
The steepest base end side slope 10 TPE is used as a reference. In addition, as shown in FIG. 6 (G), the curved and inclined portion is based on the steepest portion. The same applies to (G) and (H) below.
(D) The uppermost point, that is, the fulcrum of the base side tube pressing portion protrusion 5T is defined as 5TP (hereinafter, fulcrum 5TP).
(F) The direction in which the operator (doctor or nurse) pushes the movable part 3 is defined as F (hereinafter, the operation direction F).

Furthermore, as shown in FIGS.
(G) The angle at which the operation direction F and the extension line TL intersect is defined as θ (hereinafter, the angle is θ).
(H) The angle at which the extension line TL and the extension line HL3 intersect is defined as θ1 (hereinafter, the angle is θ1).
(I) An extension line that intersects the extension line HL3 and the upper U-lower D direction substantially perpendicularly is defined as VL3 (hereinafter, extension line VL3).
(J) An extension line that intersects the extension line HL2 approximately perpendicularly to the upper U-lower D direction and passes over the fulcrum 5TP is defined as VL5 (hereinafter, extension line VL5).
(K) A distance (hereinafter referred to as a height H of the pressing assisting portion 10) extending from the top portion 10T to the top surface of the movable portion 3 substantially parallel to the extension line VL3.

Furthermore, as shown in FIGS.
(L) A position PS on the most distal end DE (top 8T) side of the movable part 3 (movable part side engaging part 8) is defined as 0 (hereinafter referred to as PS: 0).
(M) The position PS on the most proximal end PE side of the movable portion 3 (the end point of the substantially straight line portion on the proximal end PE side, the end point of the curved portion (line) of the proximal end connecting portion 7PE) is PS: 100 (hereinafter, PS: 100).
(N) The length (distance from PS: 0 to PS: 100) of the terminal DE-base end PE of the movable part 3 is defined as L1 (hereinafter, length L1).
(O) The length (also referred to as width) of the movable portion 3 in the first side portion S1 to second side portion S2 direction is defined as L2 (hereinafter referred to as length L2).
(P) A length (also referred to as a width) in the direction of the first side portion S1 to the second side portion S2 of the pressing assisting portion 10 is defined as L3 (hereinafter referred to as length L3).

The clamp 1 is integrally molded with a hard or semi-rigid synthetic resin. After the integral molding (when the product is shipped, the tube is not clamped), as shown in FIG. 4, when the extension line HL2 is in the horizontal direction, The extension line HL3 is not parallel to the horizontal direction but is slightly inclined.
The clamp 1 is performed in the order of arrows <1> to <5> in FIGS. 7 and 8 (FIGS. 9 and 10) when the tube T is closed.
(1) As shown in FIG. 7, the operator (physician or nurse) operates the base end side inclination 10TPE of the pressing assist portion 10 (in the case of FIG. 10, the upper U side of the base end side wall 10WPE to the top surface of the base portion 3). ) With the thumb and the bottom D side of the base 2 to the bottom D of the end connecting part 7DE (substantially the same in the case of FIG. 10) with the index finger, Add (Refer to the arrow <1> direction in FIG. 8 and FIG. 10.)
(2) The movable portion side engaging portion 8 pushes the base side engaging portion 9 from the upper U-terminal DE direction as indicated by the arrow <2>, and the base side engaging portion 9 is indicated by the arrow <3>. Push in the lower D-terminal DE direction to deform.
(3) When the movable portion side engaging portion 8 is pushed to the lower DE side as indicated by the arrow <4> and the end DE of the movable portion side engaging portion 8 gets over the base side engagement assisting portion 9H, the arrow <5 Further, on the terminal DE side, the terminal DE of the movable part side engaging part 8 is engaged with the base part engaging wall 9W.

In the clamp 1 according to the present invention, the base end side inclination 10TPE becomes a so-called “pressing portion”, and is movable from the upper D-base end PE direction (oblique direction) as indicated by an arrow <2> in FIG. 8 (FIG. 10). The part side engaging part 8 can push and expand the base side engaging part 9 in the lower D-terminal DE direction (oblique direction) as shown by an arrow <3>.
At this time, the top portion 8T of the movable portion side engaging portion 8 contacts the lower portion D side (top portion lower portion 9TU) of the top portion 9T without contacting the top portion 9T of the base side engaging portion 9 from the upper U direction.
The distal side wall 8WDE pushes and spreads the base side engaging portion 9 while contacting the proximal side wall 9WDE.
In this way, since the base side engaging portion 9 is pushed and expanded in the (oblique direction) at the end side wall 8WDE of the movable portion side engaging portion 8 from (oblique direction), it is not necessary to apply a strong force forcibly.
Therefore, the transition to the arrows <4> and <5> in FIG. 8 (FIG. 10) can also be performed quickly.
As described above, when the flow path of the tube T inserted through the clamp 1 is closed, the tube T can be reliably closed without applying a strong force to the clamp 1.

As described above, the clamp 1 according to the present invention does not have to apply a strong force like the known clamp 101 when the movable portion side engaging portion 8 is engaged with the base side engaging portion 9. It becomes easy to engage. It is especially welcomed by nurses with weak fingertips.

(Angle θ1)
The angle θ1 may be 10 ° to 60 °, preferably 15 to 45 °, more preferably 15 to 25 °, and still more preferably 18 to 20 °.
If the angle θ1 is too small (less than 10 °), the effect of facilitating engagement cannot be expected. If the angle θ1 is too large (greater than 60 °), the angle θ1 becomes bulky and the operability becomes poor.

(Formation position of the pressing assist part 10)
As shown in FIGS. 3 to 5, it is preferable to form the pressing assisting portion 10 so that the top portion 10 </ b> T is substantially located on the terminal DE side from the extension line VL <b> 5.
If it is located too far from the extension line VL5 on the base end PE side, the first pushing direction F depends on the base end PE side of the movable part 3, so that the movable part side engaging part 8 is moved toward the base side engaging part 9 side. It ’s stupid.
If it is formed very close to the most distal end DE side, that is, in the vicinity of the movable part side engaging part 8, it will not be able to engage with the base side engaging part 9 when clamping (closing the flow path of the tube T). .
Furthermore, when the position is described by the position PS: 0 to the position PS: 100, the top portion 10T may be disposed at the position PS: 15-60, preferably 20-50, more preferably 25-35.

(Height H of the auxiliary pressing part 10, proportion of the movable part 3 and the auxiliary pressing part 10)
When the length L1 of the movable part 3 is 100, the height H of the auxiliary pressing part 10 is 10 to 50, preferably 20 to 35.
If the height H is too small (less than 10), the effect of facilitating engagement cannot be expected, and if it is too large (greater than 50), it becomes bulky and the operability becomes poor. On the other hand, if it is too large (high), it becomes difficult to push the base side engaging portion 9 toward the terminal DE side when removing the clamp (opening the flow path of the tube T), resulting in poor operability.

When the length L2 is 100, the length L3 is 80 to 100, preferably 100.
If L3 is too small (the width is narrow), the operability is poor, and if L3 is too large (the width is wide), the movable part 3 protrudes in the direction of the first side S1 to the second side S2, and thus other parts. It is not preferable because it will hurt etc.

[Clamp 11 of the second embodiment]
The clamp 11 (second embodiment) further forms a pair of guide portions 18G on the movable portion side engaging portion 18 [corresponding to the movable portion side engaging portion 8 of the clamp 1 (first embodiment)], A tube holding portion 15 is formed on the base 3 [corresponding to the base 3 of the clamp 1 (first embodiment)].
In addition, the clamp 11 (second embodiment) is configured so that the movable portion side engaging portion 8 and the base portion side engaging portion 9 of the clamp 1 (first embodiment) are in the form of the movable portion side engaging portion 18 and the base portion side engaging portion. It changes to the form of the part 19, and the form of the base side tube press part protrusion 5T is changed to the form of the base side tube press part protrusion 15T.
In the clamp 1 (first embodiment), a pair of guide portions 18G may be formed in the movable portion side engaging portion 8 as in the clamp 11 (second embodiment).

The guide portion 18G forms a first side portion side guide portion 18S1G on the first side portion S1 side, and forms a second side portion side guide portion 18S2G on the second side portion S2 side.
The first side portion side guide portion 18S1G and the second side portion side guide portion 18S2G project from the terminal DE side as illustrated in FIG.

The guide portion 18G (the first side portion side guide portion 18S1G and the second side portion side guide portion 18S2G) is formed in a so-called “substantially plate shape”.
The first side portion side guide portion 18S1G (second side portion side guide portion 18S2G) is formed in a so-called “substantially square shape” when viewed from the first side portion S1 (second side portion S2) direction.
That is, the guide portion 18G is formed in a so-called “stagnation” when viewed three-dimensionally.

In the movable portion side engaging portion 18, the wall on the upper U side between the first side portion side guide portion 18S1G and the second side portion side guide portion 18S2G serves as the movable portion side engaging wall 18W. (See FIGS. 11-12)
The movable part side engaging part 18 forms a movable part side engagement assisting part 18H in the vicinity of the movable part side engaging wall 18W and on the terminal DE side. The movable portion side engagement assisting portion 18H is formed in a so-called “convex shape” (or also called a protrusion) in the illustration of FIG. The movable part side engagement assisting part 18H is formed continuously from the first side part S1 to the second side part S2.
The movable portion side engagement assisting portion 18H may be formed in a concave shape (or also referred to as a groove portion).
The base side engaging portion 19 is formed in a concave shape on the base side engaging assisting portion 19H.
The base side engagement wall 19W is formed on the base end PE side in the vicinity of the base side engagement assisting portion 19H.
In short, the movable portion side engagement assisting portion 18H and the base portion side engagement assisting portion 19H may have any shape and structure that can be engaged with each other.

The base 2 has a tube holding part 15 as illustrated in FIGS.
In the description of the present invention, “having” “another member (component)” in “arbitrary member (component)” means “another member (component)” and “other member (component)”. ) "Has substantially the same meaning as" formation "," connection "," connection "," extension "," projection "," arrangement ", and the like.
The tube holding part 15 forms a first side wall 15WS1 on the first side S1 side, a second side wall 15WS2 on the second side S2 side, and a terminal side wall 15WDE from the terminal DE side to the upper U side, and from the base PE side Base end side walls 15WPE are formed over the upper U side.
More specifically, the end side wall 15WDE is connected to the first side wall 15WS1 and the second side wall 15WS2 from the end DE side to the upper U side.
The proximal end proximal side wall 15WPE is connected to the first sidewall 15WS1 and the second sidewall 15WS2 from the proximal PE side to the upper U side.

The tube holding part 15 forms a tube holding space SP by the first side wall 15WS1, the second side wall 15WS2, the end side wall 15WDE, and the base end side wall 15WPE.
As described above, the clamp 1 according to the present invention includes, in addition to the first side wall 15WS1 and the second side wall 15WS2, the terminal side wall 15WDE and the base end side wall 15WPE, and more specifically, from the upper U side to the terminal DE side. And the tube T can be hold | maintained from the upper end U side to the base end PE side.

The first sidewall 15WS1 has a sidewall opening OS formed in at least one place.
For example, in FIGS. 11 to 12, two so-called “substantially elliptical” (or substantially elliptical) side wall openings OS are formed.
The side wall opening OS on the lower D side is formed at a position substantially the same height as the position where the base-side tube pressing portion protrusion 15T is formed when viewed from the lower D to the upper U direction.
As a result, the tube T is pressed by the movable portion side tube pressing portion protrusion 6T from the upper U side and from the lower portion D side by the base side tube pressing portion protrusion 15T, and the first side portion of the tube is closed when closing the flow path. The wall surfaces on the S1 side and the second side portion S2 side can spread from the tube holding space SP in the direction of the two side wall openings OS.

That is, the tube T is in contact with the first side wall 15WS1 and the second side wall 15WS2, and is prevented from spreading in the first side S1 direction and the second side S2 direction by the first side wall 15WS1 and the second side wall 15WS2. The flow path can be reliably closed without any problems.
Further, the closed state of the flow path of the tube T and the flow of fluid (blood, chemical liquid, etc.) in the tube T can be confirmed (visually recognized) from the outside of the tube holding portion 15 by the two side wall openings OS.
Similar to the first side wall 15WS1, at least one side wall opening OS is formed on the second side wall 15WS2.
The tube holding part 15 forms an upper opening OU on the upper U side.
The upper opening OU is formed on the upper U side of the first side wall 15WS1 and the second side wall 15WS2 and between the base end PE side of the end side wall 15WDE and the end DE side of the base end side wall 15WPE.
The distal side wall 15WDE forms a second distal end opening ODE2, and the proximal end side wall 15WPE forms a second proximal end opening OPE2.

As with the clamp 1, the clamp 11 forms a pressing assist portion 20 on the upper portion U side of the movable portion 3 as shown in FIGS. 11 to 12.
The pressing assisting portion 20 is formed in a so-called “substantially rectangular shape” that rises from the lower portion D to the upper U direction when viewed from the first side portion S1 direction.
The pressing assisting portion 20 has a top surface portion 20PL, has a base end side inclination 20TPE descending from the top surface portion 20PL to the base end side PE on the base end side PE of the top surface portion 20PL, and is on the distal side DE of the top surface portion 20PL. It has a distal side wall 20WDE that hangs substantially vertically.
Since the technical significance and the like of the pressing assist portion 20 are substantially the same as those of the pressing assist portion 10 of the clamp 1 (first embodiment), detailed description thereof is omitted. The clamp 11 can employ the pressing assisting portion 10 shown in FIGS. 6A and 6C, instead of the pressing assisting portion 20.

When closing the tube T, the clamp 11 is performed in the order of arrows <1> to <5> in FIG.
(1) The operator (physician or nurse) can make the base end side inclination 20TPE of the pressure assisting portion 20 the thumb and the end DE side of the base portion 2 (similar to FIG. 7 of the clamp 1 (first embodiment)). The lower part D of the end connecting part 7DE is held with the index finger, and a force is applied with the thumb in an oblique direction (terminal DE-lower D direction). (See arrow <1> direction in FIG. 12)
(2) The movable part side engaging part 18 pushes the base side engaging part 19 from the upper U-terminal DE direction as indicated by an arrow <2>, and the base side engaging part 19 is indicated by the arrow <3>. Push in the lower D-terminal DE direction to deform.
(3) The movable portion side engaging portion 18 is pushed to the lower side D as indicated by the arrow <4>, and the movable portion side engaging assist portion 18H of the movable portion side engaging portion 18 gets over the base side engaging wall 19W. Then, the movable portion side engagement assisting portion 18H of the movable portion side engaging portion 18 is engaged with the base portion side engagement assisting portion 19H further on the terminal DE side as indicated by an arrow <5>.

In the clamp 11 of the present invention, the base end side inclination 20TPE becomes a so-called “pressing portion”, whereby the movable portion side engagement from the upper D-base end PE direction (oblique direction) as shown by an arrow <2> in FIG. The portion 18 can be expanded by pushing the base side engaging portion 19 in the lower D-terminal DE direction (oblique direction) as indicated by an arrow <3>.
At this time, the most distal end DE (top portion 18T) of the movable portion side engaging portion 18 does not contact the top portion 19T of the base side engaging portion 19 from the upper U direction, and the lower portion D side (top portion lower portion 19TU) of the top portion 19T. In contact with
The distal side wall 18WDE pushes and expands the base side engaging portion 19 while contacting the proximal end side wall 18WDE.
In this way, since the base side engaging portion 19 is pushed and expanded in the (oblique direction) from the distal side wall 18WDE of the movable portion side engaging portion 18 from (oblique direction), it is not necessary to apply a strong force forcibly.
Therefore, the transition to the arrows <4> and <5> in FIG.
As described above, when the flow path of the tube T inserted through the clamp 11 is closed, the tube T can be reliably closed without applying a strong force to the clamp 1.

As described above, the clamp 11 of the present invention does not have to apply an excessively strong force like the known clamp 101 when the movable portion side engaging portion 18 is engaged with the base side engaging portion 19. It becomes easy to engage. It is especially welcomed by nurses with weak fingertips.

DESCRIPTION OF SYMBOLS 1, 11 Clamp 2 Base 3 Movable part 5 Base side tube press part 15 Tube holding part 5T, 15T Base side tube press part protrusion 6 Movable part side tube press part 6T Movable part side tube press part protrusion 7PE Base end connection part 7DE end connecting part 8, 18 movable part side engaging part 8T, 18T top part 8WDE, 18WDE terminal side wall 18G guide part 18GS1 first side part side guide part 18GS2 second side part side guide part 18H movable part side engagement auxiliary part ( Convex)
18W Movable part side engaging wall 9, 19 Base side engaging part 9T, 19T Top part 9TU, 19TU Top part lower part 9WPE, 19WPE Base end side wall 9H Base side engagement auxiliary part (convex shape)
19H Base side engagement assisting part (concave)
9W, 19W Base side engagement wall 10, 20 Press assist part 10T, 20T Top 10TPE, 20TPE Base side slope 10TDE End side slope 10WDE, 20WDE End side wall 20PL Top surface OPE, OPE2 End side opening ODE, ODE2 Base side Opening portion OS Side opening portion OU Upper opening portion 15 Tube holding portion 15WS1 First side wall 15WS2 Second side wall 15WPE Base end side wall 15WDE Terminal side wall

Claims (9)

Having a base (2) and a movable part (3);
The base part (2) forms a base end connection part (7PE) on the base end (PE) side, the base end connection part (7PE) forms a base end opening (OPE),
The base (2) forms a terminal linking part (7DE) on the terminal (DE) side, the terminal linking part (7DE) forms a terminal opening (OPE),
Forming the movable part (3) on the upper side (U) side of the proximal end connecting part (7PE);
Forming a base side engaging portion (9) on the upper side (U) side of the end connecting portion (7DE);
The base portion (2) forms a base side tube pressing portion (5) on the upper (U) side, and the base side tube pressing portion (5) has a base side tube pressing portion protrusion (on the upper (U) side ( 5T),
The movable part (3) forms a movable part side engaging part (8) on the end (DE) side,
The movable part (3) forms a movable part side tube pressing part (6) on the lower part (D) side,
The movable part side tube pressing part (6) forms a movable part side tube pressing part projection (6T) on the lower part (D) side,
The movable part (3) forms a pressing auxiliary part (10, 20) on the upper U side,
The pressing auxiliary part (10, 20) has at least one of the top part (10T, 20T) or the top part (10PL, 20PL), or both the top part (10T, 20T) and the top part (10PL, 20PL). Have
Clamp (1, 11) having a base end side inclined portion (10TPE, 20TPE) on the base end (PE) side of the top portion (10T, 20T) when having the top portion (10T, 20T) . The extension line of the movable part (3) top end (DE) -base end (PE) is defined as an extension line (HL3),
An extension line of the terminal end (DE) -base end (PE) of the base side inclination (10 TPE, 20 TPE) is defined as an extension line (TL),
When the angle at which the extension line (TL) and the extension line (HL3) intersect is defined as an angle (θ1),
The said angle ((theta) 1) was formed in 10 degrees-60 degrees, The clamp (1, 11) of Claim 1 characterized by the above-mentioned. The extension line of the base (2) top end (DE) -base end (PE) is defined as the extension line (HL2),
The uppermost point of the base side tube pressing portion protrusion (5T, 15T) is defined as a fulcrum (5TP),
Extending the extension line (HL2) and the extension line that intersects the upper (U) -lower (D) direction substantially perpendicularly and passes over the fulcrum (5TP) of the base side tube pressing part protrusion (5T, 15T) Line (VL5),
The position on the most terminal (DE) side of the movable part (3) is determined as position PS: 0,
When the position on the most proximal end (PE) side of the movable part (3) is determined as a position PS: 100,
Clamp (1, 11) according to claim 1 or 2, characterized in that the top (10T, 20T) is located between positions PS: 15-60. The extension line (VL3) is defined as an extension line that intersects the extension line (HL3) and the upper (U) -lower (D) direction substantially perpendicularly.
The distance extended from the top (10T, 20T) to the movable part (3) top surface substantially parallel to the extension line (VL3) is defined as the height (H) of the pressing auxiliary part (10, 20),
(N): The length of the end (DE) -base end (PE) of the movable part (3) is defined as the length (L1),
The height (H) of the pressing assisting portion (10, 20) with respect to the length (L1): 100 is 20 to 50, and the height (H) is any one of claims 1 to 3. Clamp (1, 11) according to claim 1. The length of the movable part (3) in the first side part (S1) -second side part (S2) direction is defined as a length (L2),
The length in the first side portion (S1) -second side portion (S2) direction of the pressing auxiliary portion (10) is defined as a length (L3),
The clamp (1, 11) according to any one of claims 1 to 4, wherein the length (L3) is formed to 95 to 105 with respect to the length (L2): 100. . The pressing auxiliary portion (10, 20) is formed in any one of a substantially triangular shape, a substantially square shape, and a curved slope, and is composed of at least one or more of them. The clamp (1, 11) according to any one of items 5. The clamp (1, 11) according to any one of claims 1 to 6, wherein a guide part (18G) is formed in the movable part side engaging part (8, 18). The base side engaging part (9) has a base side engaging auxiliary part (9H) and a base side engaging wall (9W), according to any one of claims 1 to 7. Clamp (1). The movable part side engaging part (18) has a movable part side engaging auxiliary part (18H) and a movable part side engaging wall (19W),
The base side engaging part (19) has a base side engaging auxiliary part (19H) and a base side engaging wall (19W), according to any one of claims 1 to 8. Clamp (11).