JP6682030B1 - Gripping tool, gripping tool and gripping tool set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gripping tool for holding an object without punching, and a gripping tool for widening the gripping tool when holding the object. A gripping tool (10) includes a main body (20) that can be arranged along an object to be gripped, a bone (3), and a plurality of grips (30) extending from the main body (20). Thus, the object and the bone 3 can be grasped without making a hole. [Selection diagram] Figure 1

Description

  The present invention relates to a gripping tool, a gripping tool, and a gripping tool set.

  As a technique related to bone joining at a fractured part, for example, the techniques described in Patent Documents 1 to 4 are known.

Japanese Unexamined Patent Publication No. 2019-25350 JP, 2008-134499, A JP, 2018-134395, A JP, 2018-198982, A

  In the techniques described in Patent Documents 1 to 4, since the plate and the like are attached to the bone, it is necessary to perforate the bone. However, for example, in the case of elderly people and patients with osteoporosis, it is difficult to perforate the bone because the bone may be loaded. It should be noted that it is not limited to the case of joining the bones at the fractured part, and in order to reduce the burden on the patient, it may be desirable to avoid the perforation of the bones and hold the bones. Even when the object to be grasped is a member other than a bone, it may be desirable to avoid perforation of the object.

  The present invention aims to hold an object without punching.

A first main invention for achieving the above object includes a main body that can be arranged along an object to be gripped, and a plurality of grips extending from the main body, and grips the object. At this time, the gripping portion is a gripping tool capable of widening the interval between the distal end portions of the gripping portion by elastic deformation of the gripping portion, and gripping the object by the returning force of the elastic deformation of the gripping portion, and the plurality of gripping portions are , Having one or more first gripping portions extending from one side in the width direction of the body portion, and a plurality of second gripping portions extending from the other side in the width direction of the body portion. The first grip portion and the second grip portion are arranged in a staggered manner .
A second main invention for achieving the above object includes a main body part that can be arranged along an object to be gripped, and a plurality of gripping parts that extend from the main body part. A gripping tool capable of widening the interval between the distal end portions of the gripping parts by elastic deformation of the gripping parts when gripping, and gripping the target object by the returning force of the elastic deformation of the gripping parts. The portion has a first grip portion extending from one side in the width direction of the main body portion, and a second grip portion extending from the other side in the width direction of the main body portion, and the plurality of When the grip portion is viewed from the longitudinal direction of the main body portion, the distance between the end portion of the first grip portion and the end portion of the second grip portion is between the first grip portion and the second grip portion. The gripping tool is characterized in that it is narrower than the maximum distance in the width direction.
Further, a third main invention for achieving the above object comprises a main body part that can be arranged along an object to be gripped, and a plurality of gripping parts that extend from the main body part. A gripping tool capable of widening the interval between the distal end portions of the gripping portion by elastic deformation of the gripping portion when gripping, and gripping the target object by the returning force of the elastic deformation of the gripping portion. The main gripping portion located in the center of the gripping tool is wider than the sub gripping portions that are other gripping portions.
Further, a fourth main invention for achieving the above object comprises a main body part that can be arranged along an object to be gripped, and a plurality of gripping parts that extend from the main body part. By elastically deforming the grip portion toward the outer side in the width direction of the main body portion when gripping, the gap between the tip end portions of the grip portion is widened, and the object is moved by the returning force of the elastic deformation of the grip portion. It is a graspable tool.

  Other features of the present invention will become apparent from the description and drawings described below.

  According to the present invention, an object can be held without punching.

FIG. 1A is a perspective view of the gripping tool 10 according to the first embodiment. FIG. 1B is an explanatory diagram of a state where the long bone is grasped by the grasping tool 10. FIG. 2A is a view of the gripping tool 10 as viewed from the main body 20 side. FIG. 3 is an explanatory diagram (simulation result) of a state in which the grip portion 30 is elastically deformed. FIG. 4 is a view of the first gripping portion 30A and the second gripping portion 30B of the gripping tool 10 viewed from the longitudinal direction, and is a cross-sectional view taken along the line AA of FIG. 2B. FIG. 5A is an explanatory diagram of the protrusion 41 of the first modification. FIG. 5B is an explanatory diagram of the protrusion 41 of the second modification. FIG. 5C is an explanatory diagram of the protrusion 41 of the third modification. 6A and 6B are explanatory views of the gripping tool 10 during processing. 7A and 7B are explanatory views of the shape of the protruding portion 41 after processing. FIG. 8 is a perspective view of the gripping tool 10 of the second embodiment. FIG. 9 is an explanatory diagram of the gripping tool 50 that widens the gripping portion 30. FIG. 10 is an explanatory diagram when the grasping tool 50 is used. FIG. 11 is an explanatory diagram of the gripping tool set 100.

  At least the following matters will become apparent from the description and drawings described below.

  A gripping tool that includes a main body that can be arranged along an object to be gripped and a plurality of grips that extend from the main body, and that can grip the target by springback of the gripping part becomes clear. . According to such a holding tool, it is possible to hold an object without punching.

  It is desirable that the main body portion and the grip portion are integrally formed. Thereby, the gripping force of the gripping portion can be increased.

  The grip portion preferably has a plurality of protrusions on the inner surface. As a result, the gripping tool can be firmly fixed.

  It is preferable that the protrusion is formed higher as it is located at the end of the grip. Since the end portion of the grip portion can be largely displaced, by forming a high protrusion on the end portion of the grip portion, the protrusion of the tip portion can be deeply digged into the object by the springback of the grip portion.

  It is preferable that the protrusion is bent so that its tip faces the side of the main body. This makes it difficult for the protrusion to come off the object.

  The plurality of gripping portions include a plurality of first gripping portions extending from one side in the width direction of the main body portion and a plurality of second gripping portions extending from the other side in the width direction of the main body portion. It is desirable that the first grip portion and the second grip portion are arranged alternately. As a result, the range in which the grip portion is provided can be reduced, so that a wide range of grip can be achieved with less material.

  It is desirable that the first grip portion and the second grip portion do not overlap when viewed from the width direction. This makes it easy to form the grip portion.

  The plurality of gripping portions include a first gripping portion extending from one side in the width direction of the main body portion and a second gripping portion extending from the other side in the width direction of the main body portion. It is desirable that the distance between the end of the first grip and the end of the second grip when viewed in the longitudinal direction of the main body is smaller than the thickness of the object. This makes it difficult for the grip portion to come off the object.

  The plurality of gripping portions include a first gripping portion extending from one side in the width direction of the main body portion and a second gripping portion extending from the other side in the width direction of the main body portion. When the plurality of gripping portions are viewed from the longitudinal direction of the main body portion, the distance between the end portion of the first gripping portion and the end portion of the second gripping portion is set to the first gripping portion and the second gripping portion. It is desirable that the width is narrower than the maximum distance between the portion and the width direction. This makes it more difficult for the grip portion to come off the object.

  It is desirable that the main gripping portion located in the center of the plurality of gripping portions has a wider width than the sub gripping portion that is another gripping portion. This makes it easy to arrange the main gripping portion so as to face the target object so as to straddle the boundary portion (for example, a fractured portion) of the target object that is divided into two in the longitudinal direction.

  When viewed from the width direction of the main body portion, it is preferable that three or more sub-holding portions are provided on both sides of the main holding portion. As a result, the object can be stably gripped as compared with the case where the number of the sub-holding portions 32 is one or two.

  It is desirable that the grip portion has a curved portion whose inner surface is curved. As a result, the inner surface of the grip portion can be further fitted to the outer surface of the bone.

  It is desirable that the center of curvature of the curved portion be located outside the curved portion. As a result, the inner surface of the grip portion having the curved portion can be fitted to a small long bone.

  It is desirable that the grip portion has a bent portion that is bent inward on the end portion side of the curved portion. As a result, the tip portion of the grip portion is easily caught by the target object, and the grip portion is less likely to come off the target object.

  It is preferable that the grip portion has a hook portion for hooking a claw portion of a gripping tool that elastically deforms the grip portion. This makes it difficult for the claw portion of the grasping tool to come off from the grasping portion.

  It is preferable that the hooking portion is formed in a groove shape that is deeper than the thickness of the claw portion. As a result, the claw part hooked on the hook part does not project from the inner surface of the grip part, so the claw part is less likely to hit the target object, so after the grip part is springed back and the target part is gripped by the grip part, The structure makes it easy to remove the hook from the hook.

  It is preferable that the main grip portion located at the center of the plurality of grip portions is not provided with the hook portion, and the sub grip portion that is another grip portion is provided with the hook portion. As a result, it is possible to reduce the load on the object (for example, the fractured part) facing the main gripping part.

  A gripping tool that elastically deforms the gripping part of a gripping tool that includes a main body part that can be arranged along an object to be gripped, and a plurality of gripping parts that extend from the main body part. , A widening portion of which the spacing is changed according to the spacing of the handle portion, the widening portion has a claw portion to be hooked on the grip portion, the claw portion according to the spacing of the handle portion, A grasping tool capable of elastically deforming the grasped grasping portion becomes clear. According to such a grasping tool, it is possible to cause the grasping tool to hold an object without performing perforation.

  It is desirable that the thickness of the claw portion is thinner than the depth of a groove-shaped hooking portion provided on the grip portion for hooking the claw portion. Thereby, the claw part hooked on the hooking part does not project from the inner surface of the gripping part, and therefore, after the gripping part is spring-backed to grip an object by the gripping part, the claw part can be easily removed from the hooking part.

  It is desirable that the handle portion has an adjusting portion that adjusts the distance between the handle portions, and the adjusting portion can fix the distance between the handle portions. As a result, it becomes easy to hold the state in which the grip portion is elastically deformed and widened.

  A gripping tool that includes a main body part that can be arranged along an object to be gripped, and a plurality of gripping parts that extend from the main body part, and that can grip the target object by spring back of the gripping part, and the gripping part. Two gripping devices for elastically deforming a part, one of the gripping devices other than the main gripping part on one side when viewed from the main gripping part located in the center of the plurality of gripping parts. Used to elastically deform the gripping part, and the other gripping instrument used to elastically deform the gripping parts other than the main gripping part on the other side when viewed from the main gripping part. A gripping tool set characterized by According to such a gripping tool set, it is possible to cause the gripping tool to hold an object without punching. Further, according to such a gripping tool set, it is possible to cause the gripping portion to grip an object by sequentially using two gripping tools. Thereby, for example, it becomes easy to fix the bone (target object) in a state where the bone is normally reduced.

=== First Embodiment ===
<Structure of grasping tool 10>
FIG. 1A is a perspective view of the gripping tool 10 according to the first embodiment. FIG. 1B is an explanatory diagram of a state where the long bone 3 is grasped by the grasping tool 10. In addition, in FIG. 1B, the long bone 3 is permeated. FIG. 2A is a view of the gripping tool 10 as viewed from the main body 20 side. FIG. 2B is a view of the gripping tool 10 as viewed from the width direction. FIG. 3 is an explanatory diagram (simulation result) of a state in which the grip portion 30 is elastically deformed.

  Here, each direction is defined as shown in FIGS. 1A and 1B. That is, the long axis direction of the diaphysis of the long bone 3 may be referred to as the “longitudinal direction”. The direction along the elongated body portion 20 (member arranged along the long axis direction of the diaphysis) is the “longitudinal direction”. In addition, the thickness direction of the elongated main body 20 extending in the longitudinal direction may be referred to as a “thickness direction”. In addition, the width direction of the elongated body portion 20 (direction intersecting both edges of the body portion 20; direction substantially orthogonal to the longitudinal direction and the thickness direction) may be referred to as the width direction. The longitudinal direction may be slightly curved instead of being straight.

  The gripping tool 10 is a member that grips an object. By the gripping tool 10 gripping the target object, the gripping tool 10 is fixed to the target object and the target object is held by the gripping tool 10. In the present embodiment, the object to be grasped is a bone (specifically, the long bone 3). Then, in the present embodiment, the grasping tool 10 grasps the bone, whereby the grasping tool 10 is fixed to the bone, and the bone is held by the grasping tool 10.

  In the present embodiment, it is assumed that the fractured bone is held by causing the grasping tool 10 to grasp the bone so as to straddle the fractured part. That is, the grasping tool 10 of the present embodiment is a bone connecting tool that holds a bone in order to join a fractured part. However, the part gripped by the gripping tool 10 is not limited to the fractured part, and the gripping tool 10 is not limited to the bone joint. For example, the grasping tool 10 may function as a bone assisting tool (reinforcing tool) that assists the bone. Further, the member gripped by the gripping tool 10 is not limited to bone. For example, the grasping tool 10 may grasp objects other than bones such as wood and metal pieces. The members gripped by the gripping tool 10 are not limited to two or more members to be connected. For example, the member gripped by the gripping tool 10 may be one member for the purpose of reinforcement.

  In this embodiment, it is assumed that the grasping tool 10 grasps the radius 3. The grasping tool 10 of the present embodiment is suitable for holding a thin long bone (small long bone) such as a radius. However, the bone 3 grasped by the grasping tool 10 is not limited to the radius and may be another long bone (for example, an ulna or a humerus). The grasping tool 10 of the present embodiment has a shape that extends long along the diaphysis as a whole in order to grasp the diaphysis in the central portion of the long bone 3 (see FIG. 1B). In the present embodiment, the gripping tool 10 is made of a titanium alloy (for example, Ti-6Al-4V with 6% Al and 4% V added).

  The gripping tool 10 has a main body portion 20 and a plurality of (here, seven) gripping portions 30. The main body 20 and the grip 30 are integrally formed. In the grasping tool 10 of the present embodiment, the main body portion 20 and the grasping portion 30 are integrally formed by cutting out a block material by cutting. The gripping force of the grip portion 30 can be increased by integrally forming the main body portion 20 and the grip portion 30.

  The main body portion 20 is a portion that constitutes the main body of the gripping tool 10. The main body 20 is an elongated portion extending in the longitudinal direction. In the present embodiment, as shown in FIG. 1B, the main body 20 is arranged along the long axis direction of the diaphysis. The inner surface of the main body 20 (the surface facing the object to be gripped (here, the bone 3)) is formed in a shape that matches the outer surface shape of the object to be gripped. In the present embodiment, the inner surface of the main body portion 20 is formed in a shape that conforms to the outer surface shape (outer side of the thumb) of the diaphysis of the radius. The main body portion 20 has a function as a support portion that supports the base end portion of the grip portion 30.

  The grip portion 30 is a portion that grips an object, and is a portion that extends from the main body portion 20. In the present embodiment, the grip portion 30 is a portion that grips the bone 3. The grip portion 30 extends in a cantilever shape from the main body portion 20 and is a plate-shaped portion that is elastically deformable (see FIG. 3). The grip portion 30 is made of an elastically deformable metal material (for example, titanium alloy or stainless steel) or a resin material (for example, plastic), and is made of titanium alloy in the present embodiment. The inner surface of the grip portion 30 (the surface on the side facing the object to be gripped (here, the bone 3)) is formed in a shape that matches the outer surface shape of the object to be gripped. In the present embodiment, the inner surface of the grip portion 30 is configured to have a shape that matches the side surface shape of the diaphysis of the radius. After elastically deforming the grip portion 30 outward in the width direction (after widening the widthwise interval between the tip portions 34 of the grip portion 30), the grip portion 30 is springed back (based on the elastic deformation). It is possible to cause the target object (here, the bone 3) to be gripped by the spring back (the force of returning to the original position of the grip portion 30) of the grip portion 30 (returning). In addition, "spring back" means an attempt to return to the original state after elastic deformation, or a force to return to the original state. The grip portion 30 can be elastically deformed and widened by using an instrument (described later) such as a snap ring pliers. A plurality of grips 30 are provided. That is, the plurality of grips 30 extend from the main body 20. Here, seven grips 30 extend from the main body 20. However, the number of grips 30 is not limited to seven.

  As shown in FIG. 1B, the gripping tool 10 of the present embodiment has a main body portion 20 and a plurality of gripping portions 30, and a springback of the gripping portion 30 enables gripping of the bone 3 (target object). It is configured. As a result, as shown in FIG. 1B, the target object (here, the bone 3) to be grasped can be held without being perforated.

  In the following description, the end portion of the grip portion 30 on the side of the main body portion 20 may be referred to as a "base end portion", and the end portion on the opposite side (tip end side) may be referred to as a "tip portion 34". When the grip portion 30 is elastically deformed, the distal end portion 34 can be displaced largely compared to the base end portion. As a result, the gap between the tip portions 34 of the grip portions 30 is widened, and the grip portions 30 can be widened.

  Further, in the following description, the grip portion 30 extending from one side in the width direction of the main body portion 20 is referred to as a “first grip portion 30A”, and the grip portion 30 extending from the opposite side (the other side) is referred to as a “first grip portion 30A”. It may be referred to as a "2 grip portion 30B". Due to the spring back of the first grip portion 30A and the second grip portion 30B, the first grip portion 30A and the second grip portion 30B sandwich and grip the target object (bone 3). In the present embodiment, the grip portion 30 includes three first grip portions 30A and four second grip portions 30B. However, the number of the first grips 30A and the second grips 30B is not limited to this.

  The first grip portion 30A and the second grip portion 30B are arranged alternately along the longitudinal direction. In other words, the first grip portion 30A and the second grip portion 30B are arranged at different positions in the longitudinal direction, and the grip portions 30 located at both ends when viewed in the width direction (here, the second grip portion 30B). Except that the first gripping portion 30A is disposed between the second gripping portion 30B and the second gripping portion 30B, and the second gripping portion 30B includes the first gripping portion 30A and the first gripping portion 30A. It is located in between. By alternately arranging the first gripping portion 30A and the second gripping portion 30B in this way, the range in which the gripping portion 30 is provided can be reduced, and thus a wide range can be gripped with a small amount of material. Further, by arranging the first grip portion 30A and the second grip portion 30B alternately, the force of the grip portion 30 can be released in the opposite direction, and the load applied to the object to be gripped (here, the bone 3). It becomes possible to suppress.

  In the present embodiment, as shown in FIG. 2B, the first grip portion 30A and the second grip portion 30B are staggered so that the first grip portion 30A and the second grip portion 30B do not overlap when viewed from the width direction. It is located in. This makes it easy to form the grip portion 30 (described later; see FIGS. 6A and 6B). However, the first gripping portion 30A and the second gripping portion 30B are alternately arranged so that a part of the first gripping portion 30A and a part of the second gripping portion 30B overlap when viewed in the width direction. May be. Accordingly, the object can be gripped with a part of the first gripping portion 30A and a part of the second gripping portion 30B facing each other, and thus the object can be stably gripped.

  The grip portion 30 located at the center of the seven grip portions 30 has a wider width (dimension in the longitudinal direction) than the other grip portions 30. In the following description, the grip portion 30 located at the center may be referred to as the “main grip portion 31”, and the other grip portions 30 may be referred to as the “sub grip portion 32”.

  The main gripper 31 is the gripper 30 located in the center of the plurality of grippers 30. The main grip 31 has a larger width (length in the longitudinal direction) than the sub grip 32. Here, the width of the main grip portion 31 is set to be about twice the width of the sub grip portion 32. The main grip portion 31 is arranged to face the boundary portion of the object that is divided into two in the longitudinal direction. In the present embodiment, the main grip portion 31 is arranged so as to face the fractured portion (boundary portion of the object in a state of being divided into two). Since the main grip portion 31 is configured to be relatively wide, the main grip portion 31 is configured to be easily disposed so as to face the fractured portion so as to straddle the fractured portion (cover the fractured portion). The width (length in the longitudinal direction) of the main grip portion 31 is set according to the condition of the fractured portion. For example, when the fracture line is oblique to the long axis of the bone, the width (longitudinal direction) of the main grip portion 31 is larger than when the fracture line is perpendicular to the long axis of the bone. Will be set longer. The main grip portion 31 may have the same width as the sub grip portion 32.

  The sub-holding portion 32 is the holding portion 30 arranged outside the main holding portion 31 in the longitudinal direction. When viewed from the width direction, the three sub-holding portions 32 are provided on both sides of the main holding portion 31 in the longitudinal direction, respectively. In this way, by arranging three or more sub gripping portions 32 on the outer side in the longitudinal direction of the main gripping portion 31, the object (here, the bone 3) is held outside the main gripping portion 31 by the sub gripping portion 32. It becomes possible to grip. Note that the number of sub-holding portions 32 arranged outside the main holding portion 31 in the longitudinal direction is not limited to three. For example, the number of sub-holding portions 32 arranged outside the main holding portion 31 in the longitudinal direction may be three or more. Further, if the plurality of grips 30 are not arranged alternately, the number of the sub grips 32 arranged outside the main grip 31 in the longitudinal direction may be two. Further, by adjusting the gripping force (the force that tightens the target object), the target object can be gripped by one or more sub-gripping parts 32 even when the plurality of gripping parts 30 are arranged alternately. It should be noted that when one sub gripping portion 32 is provided on each side of the main gripping portion 31 in the longitudinal direction when viewed from the width direction (a total of three gripping portions 30 (one main gripping portion 31 and Even in the case where the two sub-holding portions 32) are provided), it is possible to hold the object. However, when the plurality of gripping portions 30 are alternately arranged, if the number of the sub-gripping portions 32 is three or more, the object can be stably gripped as compared with the case where the number of the sub-gripping portions 32 is two.

  FIG. 4 is a view of the first grip portion 30A and the second grip portion 30B of the grip tool 10 as viewed from the longitudinal direction. Note that FIG. 4 is a cross-sectional view taken along the line AA of FIG. 2B. The grasping tool 10 has a C shape when viewed from the longitudinal direction.

  The grip 30 has a protrusion 41 on the inner surface (the surface facing the object to be gripped (here, the bone 3)). The protrusion 41 is a convex (spinous) portion protruding from the inner surface of the grip portion 30. The protrusion 41 is a portion that engages with (hangs on) the target when the grip 30 holds the target by spring back. Since the protrusion 41 is formed on the inner surface of the grip portion 30, the grip tool 10 is less likely to deviate from the target object when the grip tool 10 grips an object (here, the bone 3). Firmly fixed to). Note that the protrusion 41 may not be formed on the inner surface of the grip portion 30. In addition, in the present embodiment, the tip of the protrusion 41 is sharply formed. With this, when the gripping portion 30 grips the target object by spring back, the protrusion 41 easily penetrates into the target object (here, the bone 3), and the protrusion 41 and the target object are engaged (trapped). It becomes stronger. Even if the tip of the protrusion 41 is not sharply formed, it is possible to make the gripping tool 10 less likely to be displaced with respect to the object if at least the protrusion 41 abuts or engages with the object. .

  A large number of protrusions 41 are formed on the inner surface of the grip portion 30. In the present embodiment, as shown in FIG. 2B, a plurality of protrusions 41 are arranged side by side in the longitudinal direction on the inner surface of the grip portion 30. Thereby, when the gripping tool 10 is cut out from the block material, the inner surface of the gripping portion 30 having the plurality of protrusions 41 is easily processed.

  In this embodiment, the protrusion 41 is not formed on the inner surface of the main body 20. This makes it possible to prevent the main body 20 from separating from the target when the gripper 10 is attached to the target (here, the bone 3), and it becomes easier to bring the inner surface of the main body 20 and the outer surface of the target into close contact with each other. For example, in the case of the present embodiment, the protrusion 41 is not formed on the inner surface of the main body 20, so that the entire main body 20 is easily attached to the bone 3.

  FIG. 5A is an explanatory diagram of the protrusion 41 of the first modification. In the first modified example, the protrusion (main-body-side protrusion 42) is formed not only on the inner surface of the grip portion 30 but also on the inner surface of the main body portion 20. Thereby, when the gripping portion 30 grips an object (for example, a bone) by springback, the main body side protrusion 42 of the main body portion 20 also engages (is caught) with the object, so that the gripping tool 10 with respect to the object. It becomes more difficult to slip.

  FIG. 5B is an explanatory diagram of the protrusion 41 of the second modification. In the second modification, the protrusion 41 is formed to be higher as it is located at the tip end portion 34 of the grip portion 30 (projects higher from the inner surface of the grip portion 30). In other words, the protrusion 41 on the side of the tip portion 34 is formed higher than the protrusion 41 on the side of the base end. Since the distal end portion 34 of the grip portion 30 can be largely displaced, the protrusion 41 of the distal end portion 34 can deeply dig into an object (bone, for example) due to the springback of the grip portion 30. Further, since the tip portion 34 of the grip portion 30 can be largely displaced, the protrusion portion 41 of the tip portion 34 is unlikely to be an obstacle when the grip tool 10 is attached. Therefore, it is allowed to form a high protrusion on the tip portion 34. There is.

  FIG. 5C is an explanatory diagram of the protrusion 41 of the third modification. In the third modification, the protrusion 41 is formed to be curved. In addition, in the third modified example, the tip of the protrusion 41 is formed to be bent so as to face the main body 20 side. As a result, when the grip portion 30 grips an object (for example, a bone), the tip end of the protruding portion 41 that is bent is inserted into the object. As a result, the direction in which the grip portion 30 is widened is different from the protruding direction of the tip of the protrusion 41, so that even if a force is applied in the direction in which the grip portion 30 is widened, the protrusion 41 that has been inserted into the target object It becomes difficult to separate from the object. It should be noted that, when the protrusion 41 is cut, if the finishing allowance is reduced and rough machining is performed, the curved protrusion 41 can be formed (described later; see FIG. 7B).

  As shown in FIG. 4, the grip portion 30 has a curved portion 35 whose inner surface is curved. The curved portion 35 has a shape adapted to the outer surface shape of the diaphysis. Since the grip portion 30 has the curved portion 35, the inner surface of the grip portion 30 can be fitted to the outer surface of the bone. Further, in the present embodiment, the center of curvature of the curved portion 35 of the grip portion 30B (the grip portion 30 on the right side in FIG. 4) is outside the curved portion 35 (the side opposite to the object side when viewed from the grip portion 30). Is located in. As a result, the inner surface of the grip portion 30 can be fitted to a small long bone such as a radius.

  Further, as shown in FIG. 4, the grip portion 30 has a bent portion 36. The bent portion 36 is a bent portion provided closer to the distal end portion 34 side than the curved portion 35. The bent portion 36 is bent in a direction in which the tip portion 34 (the tip portion on the right side in the drawing) approaches the grip portion 30 (here, grip portion 30A) on the opposite side. Since the tip end portion 34 of the grip portion 30 is provided with the bent portion 36, when the grip portion 30 grips an object (here, the bone 3), the tip portion 34 of the grip portion 30 is easily caught by the object. It becomes difficult for the grip portion 30 to come off from the object. The bent portion 36 is formed integrally with the tip portion 34. As a result, when the gripping portion 30 grips the target object (here, the bone 3), the gripping portion 30 becomes more difficult to disengage from the target object.

  In the present embodiment, when the first grip portion 30A and the second grip portion 30B are viewed from the longitudinal direction as shown in FIG. 4, the tip portion 34 of the first grip portion 30A and the tip portion 34 of the second grip portion 30B are The distance D1 is set to be narrower than the thickness of the object to be grasped (here, the bone 3). In other words, in the present embodiment, when the first grip portion 30A and the second grip portion 30B are viewed from the longitudinal direction as shown in FIG. 4, the tip end portion 34 of the first grip portion 30A and the tip end of the second grip portion 30B. The distance D1 from the portion 34 is set to be narrower than the maximum width D2 in the width direction between the first grip portion 30A and the second grip portion 30B (D1 <D2). As a result, when the object (here, the bone 3) is sandwiched and gripped by the first grip portion 30A and the second grip portion 30B, the grip portion 30 is unlikely to come off the object. As shown in FIG. 4, the end of the maximum distance D2 on the second gripping portion 30B side is arranged at the bent portion 36.

<Manufacturing method of the gripping tool 10>
6A and 6B are explanatory views of the gripping tool 10 during processing.

  The processing machine has a processing tool 71 and a moving stage (not shown). The processing tool 71 is a cutting tool such as an end mill. The moving stage (not shown) may move the processing tool 71 with respect to the block material X, or may move the block material X (chuck holding the block material X) with respect to the processing tool 71. In the present embodiment, the 3D data of the gripping tool 10 is created based on the 3D data of the fractured part of the patient, the processing data is created based on the 3D data of the gripping tool 10, and then the processing machine is based on the processing data. By driving the moving stage to move the processing tool 71 and the block material X relative to each other and cutting the block material X, the gripping tool 10 is cut out from the block material X.

  In the present embodiment, as shown in FIGS. 6A and 6B, when the processing machine cuts out the gripping tool 10 from the block material X, the processing tool 71 is provided between the second gripping portion 30B and the second gripping portion 30B. Can be inserted to form the first grip portion 30A. Similarly, in the present embodiment, the processing machine can insert the processing tool 71 between the first grip portion 30A and the first grip portion 30A to form the second grip portion 30B. In order to realize such a processing method, in the present embodiment, as shown in FIG. 2B, the first gripping portion 30A and the second gripping portion 30B do not overlap when viewed from the width direction, The first grip portion 30A and the second grip portion 30B are arranged alternately. As a result, the second grip portion 30B does not interfere with the machining tool 71 when processing the first grip portion 30A, and the first grip portion 30A does not interfere with the machining tool 71 when machining the second grip portion 30B. Therefore, the grip portion 30 can be easily formed.

  Further, in this embodiment, the processing machine processes the plurality of protrusions 41 arranged side by side in the longitudinal direction. At this time, as shown in FIG. 6B, the processing machine moves the processing tool 71 with respect to the block material X in the longitudinal direction to process the inner surface of the grip portion 30 having the plurality of protrusions 41. Is possible. That is, by arranging the plurality of protrusions 41 in the longitudinal direction, the inner surface of the grip portion 30 can be easily processed.

  7A and 7B are explanatory views of the shape of the protruding portion 41 after processing. FIG. 7A shows the shape of the protrusion 41 when the finishing allowance is set to 0.1 mm. FIG. 7B shows the shape of the protrusion 41 when the finishing allowance is set to 0.01 mm.

  In the present embodiment, the processing machine performs rough processing on the block material X made of a titanium alloy (specifically, Ti-6Al-4V with 6% Al and 4% V added), Finishing processing will be performed. In the roughing process, the gripping tool 10 having a shape that leaves a finishing allowance is cut out from the block material X. Further, in the finishing process, the gripping tool 10 having the final shape is cut out.

  In the protrusion 41 of the present embodiment shown in FIG. 4, as shown in FIG. 7A, the tip end projects straight from the inner surface of the grip portion 30. When forming such protrusions 41, it is desirable to set a relatively large finishing allowance. On the other hand, in the projection 41 of the third modification shown in FIG. 5C, the tip is bent as shown in FIG. 7B. When forming the protruding portion 41 having a curved tip as described above, it is desirable to set the finishing allowance relatively small. That is, when the protrusion 41 of the third modified example shown in FIG. 5C is formed, the tip of the protrusion 41 protrudes straight from the inner surface of the grip 30 on the 3D data of the original gripper 10 that creates the processing data. It may have a shape (of course, the tip of the protrusion 41 may be curved on the 3D data of the gripper 10).

  It should be noted that the smaller the finishing allowance, the shorter the processing time of the finishing work can be made. In other words, the protrusion 41 shown in FIG. 7B (the protrusion 41 having a curved tip) has a shape capable of shortening the processing time for finishing as compared with the protrusion 41 shown in FIG. 7A.

=== Second Embodiment ===
FIG. 8 is a perspective view of the gripping tool 10 of the second embodiment. FIG. 9 is an explanatory diagram of the gripping tool 50 that widens the gripping portion 30. FIG. 10 is an explanatory diagram when the grasping tool 50 is used.

  As shown in FIG. 8, also in the second embodiment, the gripping tool 10 has a main body section 20 and a plurality of gripping sections 30, and springs back the gripping section 30 to hold an object (for example, a bone). It is configured so that it can be held. In the second embodiment, the grip portion 30 has a hook portion 44.

  The hook portion 44 is a portion on which the claw portion 54 of the gripping device 50 that elastically deforms the grip portion 30 is hooked. The hook portion 44 of the present embodiment is a groove-shaped portion (groove portion) provided on the inner surface of the grip portion 30. However, the hooking portion 44 may have another shape such as a hole as long as the claw portion 54 of the gripping device 50 that is elastically deformed can be hooked. Further, if the hook portion 54 of the gripping device 50 that is elastically deformed can be hooked, the hooking portion 44 may be provided at another position of the gripping portion 30 (for example, a side surface of the gripping portion 30 may be a hooking portion). Hole (a hole into which the claw 54 can be inserted) may be formed). By providing the hook portion 44 on the grip portion 30, it is difficult for the claw portion 54 to come off the grip portion 30 when the grip portion 30 is elastically deformed.

  The hook portion 44 of the present embodiment has a groove portion that is deeper than the thickness of the claw portion 54 (see FIG. 10). Accordingly, the claw portion 54 hooked on the hooking portion 44 does not project from the inner surface of the grip portion 30, so that the claw portion 54 is less likely to hit the target object (for example, bone), and therefore, after the grip portion 30 grips the target object, It becomes easy to remove the claw portion 54 from the hook portion 44.

  The gripping tool 50 is a tool for elastically deforming and widening the gripping portion 30 (see FIG. 9). The gripping tool 50 can elastically deform the C-shaped gripping tool 10. The gripping tool 50 can hook the gripping portion 30 over the main body 20 to widen the gripping portion 30. The grasping tool 50 is composed of a first member 50A and a second member 50B, and has a handle portion 51, a widening portion 53, and a connecting portion 55. The handle portion 51 is formed at one end of the first member 50A and the second member 50B, and the widening portion 53 is formed at the other end. In the following description, "A" may be added to the first member 50A and "B" may be added to the second member 50B with respect to the reference numerals indicating the respective parts.

  The handle portion 51 is a portion where the operator grips the grasping tool 50. The handle portion 51A and the handle portion 51B can be moved toward and away from each other. In the present embodiment, the handle portion 51 has an adjusting portion 52. The adjustment unit 52 is a member that adjusts the interval (angle between the first member 50A and the second member 50B) of the handle unit 51. The adjusting part 52 of the present embodiment adjusts the interval (angle between the first member 50A and the second member 50B) of the handle part 51 with the bolt and the nut. However, the adjusting unit 52 is not limited to the bolt and the nut. The adjustment unit 52 of the present embodiment can change the interval between the handle units 51 and can fix the handle units 51 while keeping the interval at an arbitrary level. That is, the adjusting unit 52 of the present embodiment can change the angle between the first member 50A and the second member 50B, and can fix the first member 50A and the second member 50B while keeping the angle at an arbitrary angle. Is. Since the adjusting portion 52 can fix the handle portion 51, it becomes easy to maintain the grip portion 30 elastically deformed and widened.

  The widened portion 53 is a portion that elastically deforms the grip portion 30. The widened portion 53 is a portion that extends in the shape of an arm, and the grip portion 30 can be hooked over the main body portion 20. A plurality of (three in this case) widened portions 53 are provided. Each widened portion 53 has a claw portion 54.

  The claw portion 54 is a portion that is hooked on the grip portion 30. In the present embodiment, the grip portion 30 is provided with the hook portion 44, and the claw portion 54 is hooked on the hook portion 44 of the grip portion 30. As a result, when the grip portion 30 is elastically deformed, the claw portion 54 is less likely to come off the grip portion 30. However, the claw portion 54 may be hooked on the grip portion 30 without the hook portion 44. The claw portions 54 of the three widened portions 53 project in the same direction when viewed from the widened portion 53. Here, one claw portion 54 protrudes from each widened portion 53 (widened portion 53A or widened portion 53B), but a plurality of claw portions from each widened portion 53 (widened portion 53A or widened portion 53B). 54 may protrude. Further, although the claw portion 54 projects in one direction of the widened portion 53, it may project in two directions from the widened portion 53. In addition, the dimension L1 in the longitudinal direction of the widened portion 53 including the claw portion 54 is the length of the gap between the first grip portion 30A and the first grip portion 30A or the gap between the second grip portion 30B and the second grip portion 30B. It is shorter than the dimension L2 in the direction (L1 <L2). As a result, the claw portion 54 can be hooked on the hooking portion 44 of the grip portion 30, and the claw portion 54 can be removed from the hooking portion 44. The thickness of the claw portion 54 of the present embodiment is smaller than the depth of the groove-shaped hooking portion 44. As a result, the claw portion 54 hooked on the hook portion 44 does not project from the inner surface of the grip portion 30, so that the claw portion 54 can be easily removed from the hook portion 44 after the grip portion 30 grips an object (for example, a bone).

  The connecting portion 55 is a portion that rotatably connects the first member 50A and the second member 50B. The first member 50A and the second member 50B intersect at the joint portion 55, and when the handle portion 51A and the handle portion 51B are brought close to each other, the widened portion 53A and the widened portion 53B (the claw portions 54A and the claw portions 54B) move away from each other. It will be. Conversely, when the widened portion 53A and the widened portion 53B come close to each other, the handle portion 51A and the handle portion 51B move away from each other.

  In the present embodiment, when the handle portion 51A and the handle portion 51B are brought close to each other while the hook portion 44 of the grip portion 30 is hooked on the claw portion 54 of the widened portion 53, the gap between the tip portions 34 of the grip portion 30 (first The grip portion 30 can be elastically deformed so as to widen the distance between the tip portion 34 of the grip portion 30A and the tip portion 34 of the second grip portion 30B. When the widened portion 53A and the widened portion 53B come close to each other due to the springback of the gripped portion 30 with the hook portion 44 of the widened portion 53 hooked on the hook portion 44 of the widened portion 53, the handle portion 51A and the handle portion 51B move away from each other. become.

  FIG. 11 is an explanatory diagram of the gripping tool set 100.

  The gripping tool set 100 includes a gripping tool 10 and two gripping tools 50. The claws 54 of the one gripping device 50 are hooked on the hooking portions 44 of the three sub gripping portions 32 arranged on one side in the longitudinal direction when viewed from the main gripping portion 31. Further, the claw portion 54 of the other gripping device 50 is hooked on the hooking portions 44 of the three sub gripping portions 32 on the opposite side from the main gripping portion 31. That is, one gripping device 50 is used to elastically deform the three sub gripping portions 32 arranged on one side in the longitudinal direction when viewed from the main gripping portion 31. The other gripping device 50 is used to elastically deform the three sub gripping portions 32 arranged on the other side in the longitudinal direction when viewed from the main gripping portion 31.

  When using the gripping tool 10 of the present embodiment, the operator first narrows the gap between the handle parts 51 by the adjusting part 52 of the one gripping instrument 50 and elastically deforms the three sub gripping parts 32. Widen. Next, similarly, the operator uses the other gripping tool 50 to elastically deform the remaining three sub gripping portions 32 to widen them. Since the adjusting portion 52 fixes the handle portion 51, even if the operator releases his / her hand from the handle portion 51, the state in which the sub grip portion 32 is elastically deformed and widened can be maintained.

  In the present embodiment, the main grip portion 31 is not elastically deformed. However, the main gripper 31 may be elastically deformed by the gripping device 50. In the present embodiment, since the main grip portion 31 is not elastically deformed, the main grip portion 31 does not need to have the hook portion 44. In the present embodiment, since it is not necessary to form the hooking portion 44 on the inner surface of the main grip portion 31 that is arranged so as to face the fractured portion, the load on the fractured portion can be reduced. However, the hook portion 44 may be formed on the inner surface of the main grip portion 31.

  The operator inserts a bone between the tip end portion 34 of the first grasping portion 30A and the tip end portion 34 of the second grasping portion 30B, which are widened by elastic deformation, to connect the first grasping portion 30A and the second grasping portion 30B. Place the bone in between. In the present embodiment, since the adjusting portion 52 fixes the handle portion 51, it is possible to hold the space between the tip portion 34 of the first grip portion 30A and the tip portion 34 of the second grip portion 30B in a widened state. The work of arranging the bone between the first grip portion 30A and the second grip portion 30B becomes easy. At this time, the main grip portion 31 is arranged to face the fractured portion. In the present embodiment, since the main grip portion 31 is not elastically deformed, the work of disposing the main grip portion 31 so as to face the fractured part becomes easy.

  After arranging the bone between the grips 30, the operator operates the adjusting part 52 of the gripping tool 50 to widen the gap between the handle parts 51 and narrow the gap between the widened parts 53A and 53B. The grip portion 30 is springed back. In the present embodiment, since the adjusting portion 52 can fix the handle portion 51 at an arbitrary position, the work of gradually springing back the grip portion 30 becomes easy. After the grip portion 30 is spring-backed to cause the grip portion 30 to grip the bone, the operator moves the gripping tool 50 in the longitudinal direction with respect to the grip tool 10, and removes the claw portion 54 from the hook portion 44. . In the present embodiment, since the hook portion 44 has a groove portion deeper than the thickness of the claw portion 54, the claw portion 54 does not hit the object, and therefore the work of removing the claw portion 54 from the hook portion 44 becomes easy.

  In the present embodiment, the worker causes one of the two gripping tools 50 to grip the bone by the three sub-gripping parts 32 and then uses the other gripping tool 50. The remaining three sub-holding portions 32 can be used to hold the bone. That is, it is possible to cause the grip portion 30 to grip the bone by sequentially using the two gripping tools 50. This allows the reduction of the fractured part after the grasping part 30 is caused to grasp the bone by using the one grasping instrument 50. In addition, after the reduction of the fractured part, it is possible to cause the remaining grasping part 30 to grasp the bone using the other grasping tool 50 and finally fix the bone with the grasping tool 10. In this way, by using the two grasping tools 50 in sequence and causing the grasping portion 30 to grasp the bone, it becomes easy to fix the bone in the state of being normally reduced.

=== Other ===
The above-described embodiments are for facilitating the understanding of the present invention, and are not for limiting the interpretation of the present invention. It goes without saying that the present invention can be modified and improved without departing from the spirit thereof and that the present invention includes equivalents thereof.

3 bones, 10 grippers,
20 body part, 30 gripping part,
30A first grip portion, 30B second grip portion,
31 main grip, 32 sub grip,
34 tip part, 35 curved part, 36 bent part,
41 protrusions, 42 main body side protrusions, 44 hooks,
50 gripping device, 50A first member, 50B second member,
51 handle part, 52 adjusting part,
53 widening part, 54 claw part, 55 connecting part,
71 Processing tools, X block materials,
100 gripper set,

Claims (29)

A main body that can be arranged along the object to be grasped,
A plurality of grips extending from the body,
A gripping tool capable of gripping the target object by elastically deforming the gripping part to widen the interval between the tip parts of the gripping parts when gripping the target object, and returning force of the elastic deformation of the gripping part ,
The plurality of grips include one or more first grips extending from one side in the width direction of the main body, and a plurality of second grips extending from the other side in the width direction of the main body. Has and
The gripping tool characterized in that the first gripping portion and the second gripping portion are arranged alternately . A main body that can be arranged along the object to be grasped,
A plurality of grips extending from the body,
A gripping tool capable of gripping the target object by elastically deforming the gripping part to widen the interval between the tip parts of the gripping parts when gripping the target object, and returning force of the elastic deformation of the gripping part ,
The plurality of gripping portions include a first gripping portion extending from one side in the width direction of the main body portion and a second gripping portion extending from the other side in the width direction of the main body portion. ,
When the plurality of grips are viewed from the longitudinal direction of the main body, the gap between the end of the first grip and the end of the second grip is determined by the first grip and the second grip. Is narrower than the maximum distance in the width direction between the gripping tool . A main body that can be arranged along the object to be grasped,
A plurality of grips extending from the body,
A gripping tool capable of gripping the target object by elastically deforming the gripping part to widen the interval between the tip parts of the gripping parts when gripping the target object, and returning force of the elastic deformation of the gripping part ,
A gripping tool characterized in that a main gripping portion located in the center of the plurality of gripping portions has a wider width than a sub-gripping portion which is another gripping portion . A main body that can be arranged along the object to be grasped,
A plurality of grips extending from the body,
By elastically deforming the grip portion toward the outer side in the width direction of the main body portion when gripping the object, the interval between the tip end portions of the grip portion is widened, and the elastic deformation of the grip portion returns the force. A gripper capable of gripping the object. The gripping tool according to any one of claims 1 to 4 ,
A gripping tool, wherein the main body portion and the gripping portion are integrally formed. The grasping tool according to any one of claims 1 to 5 ,
The gripping tool has a plurality of spine-shaped projections on its inner surface. The gripping tool according to claim 6 ,
The gripping tool is characterized in that the protrusion is formed higher as it is located at an end of the gripping portion. The gripping tool according to claim 6 ,
The gripping tool is characterized in that the projection is bent so that its tip faces the side of the main body. The grasping tool according to any one of claims 2 to 8 ,
The plurality of grips include one or more first grips extending from one side in the width direction of the main body, and a plurality of second grips extending from the other side in the width direction of the main body. Has and
The gripping tool characterized in that the first gripping portion and the second gripping portion are arranged alternately. The gripping tool according to claim 9 ,
The grasping tool characterized in that the first grasping portion and the second grasping portion do not overlap each other when viewed from the width direction. The grasping tool according to any one of claims 1, 3 to 10 , wherein
The plurality of gripping portions include a first gripping portion extending from one side in the width direction of the main body portion and a second gripping portion extending from the other side in the width direction of the main body portion. ,
When the plurality of grips are viewed from the longitudinal direction of the main body, the gap between the end of the first grip and the end of the second grip is determined by the first grip and the second grip. Is narrower than the maximum distance in the width direction between the gripping tool. The gripping tool according to any one of claims 1, 2 , and 4 to 11 ,
A gripping tool characterized in that a main gripping portion located in the center of the plurality of gripping portions has a wider width than a sub-gripping portion which is another gripping portion. The grasping tool according to claim 3 or 12 ,
A gripping tool characterized in that, when viewed from the width direction of the main body part, three or more sub-grip parts are provided on both sides of the main grip part, respectively. The grasping tool according to any one of claims 1 to 13 ,
The gripping part has a curved part whose inner surface is curved. The gripping tool according to claim 14 , wherein
A gripping tool, wherein a center of curvature of the curved portion is located outside the curved portion. The grasping tool according to claim 14 or 15 , wherein
The grasping tool is characterized in that the grasping portion has a bent portion that is bent inwardly on the end side of the curved portion. The gripper according to any one of claims 1 to 16 ,
The gripping part has a hooking part for hooking a claw part of a gripping tool that elastically deforms the gripping part. The gripper according to claim 17 ,
The grasping tool is characterized in that the hooking section has a groove section deeper than the thickness of the claw section. The grasping tool according to claim 17 or 18 , wherein
The main grip portion located in the center of the plurality of grip portions is not provided with the hook portion,
A gripping tool, wherein the hooking portion is provided on a sub-gripping portion which is another gripping portion. A gripping tool including a main body part that can be arranged along an object to be gripped, and a plurality of gripping parts that extend from the main body part, and elastic deformation of the gripping part when gripping the target object. The gripping tool is capable of widening the interval between the distal end portions of the gripping portions, and gripping the object by the return force of the elastic deformation of the gripping portions, wherein the plurality of gripping portions are the width of the main body portion. One or more first grips extending from one side in the direction and a plurality of second grips extending from the other side in the width direction of the main body are provided. And the second gripping portion is a gripping device that elastically deforms the gripping portions of the gripping tools that are alternately arranged ,
The handle part,
A widening portion whose spacing is changed according to the spacing of the handle portion,
The widened portion has a claw portion hooked on the grip portion,
A grasping tool capable of elastically deforming the grasping portion hooked with the claw portion according to the distance between the handle portions. A gripping tool including a main body part that can be arranged along an object to be gripped, and a plurality of gripping parts that extend from the main body part, and elastic deformation of the gripping part when gripping the target object. The gripping tool is capable of widening the interval between the distal end portions of the gripping portions, and gripping the object by the return force of the elastic deformation of the gripping portions, wherein the plurality of gripping portions are the width of the main body portion. A first grip portion extending from one side in the direction and a second grip portion extending from the other side in the width direction of the main body portion, and the plurality of grip portions are provided in the longitudinal direction of the main body portion. When viewed from the direction, the distance between the end of the first grip and the end of the second grip is greater than the maximum distance in the width direction between the first grip and the second grip. A gripping device for elastically deforming the grip portion of the narrow gripping tool ,
The handle part,
A widening portion whose spacing is changed according to the spacing of the handle portion,
The widened portion has a claw portion hooked on the grip portion,
A grasping tool capable of elastically deforming the grasping portion hooked with the claw portion according to the distance between the handle portions. A gripping tool including a main body part that can be arranged along an object to be gripped, and a plurality of gripping parts that extend from the main body part, and elastic deformation of the gripping part when gripping the target object. The gripping tool is capable of widening the interval between the tip parts of the gripping parts and gripping the target object by the returning force of the elastic deformation of the gripping parts, which is located at the center of the plurality of gripping parts. The gripping part is a gripping device that elastically deforms the gripping part of the gripping tool that is wider than the sub-gripping part that is another gripping part ,
The handle part,
A widening portion whose spacing is changed according to the spacing of the handle portion,
The widened portion has a claw portion hooked on the grip portion,
A grasping tool capable of elastically deforming the grasping portion hooked with the claw portion according to the distance between the handle portions. A gripping tool comprising a main body part that can be arranged along an object to be gripped, and a plurality of gripping parts extending from the main body part, wherein the gripping part is the main body when gripping the target object. The gripping part of the gripping tool capable of gripping the target object by elastically deforming the gripping part toward the outer side in the width direction to widen the interval between the tip parts of the gripping part and returning force of the elastic deformation of the gripping part. A gripping device for elastically deforming,
The handle part,
A widening portion whose spacing is changed according to the spacing of the handle portion,
The widened portion has a claw portion hooked on the grip portion,
A grasping tool capable of elastically deforming the grasping portion hooked with the claw portion according to the distance between the handle portions. The grasping instrument according to any one of claims 20 to 23 ,
The gripping device is characterized in that the thickness of the claw portion is thinner than the depth of a groove-shaped hooking portion provided in the gripping portion for hooking the claw portion. The grasping instrument according to any one of claims 20 to 24 ,
The handle portion has an adjusting portion that adjusts an interval between the handle portions,
The gripping device is characterized in that the adjusting portion can fix the interval between the handle portions. A gripping part is provided which includes a main body part that can be arranged along an object to be gripped and a plurality of gripping parts extending from the main body part, and elastically deforms the gripping part when gripping the target object. A gripping tool capable of widening the interval between the parts and gripping the object by a return force of elastic deformation of the gripping part, wherein the plurality of gripping parts extend from one side in the width direction of the main body part. It has one or more first gripping parts and a plurality of second gripping parts extending from the other side in the width direction of the main body part, and the first gripping part and the second gripping part are The gripping tools arranged alternately ,
Two gripping devices for elastically deforming the grip part,
One of the gripping instruments is used to elastically deform the gripping part other than the main gripping part on one side when viewed from the main gripping part located in the center of the plurality of gripping parts,
The other gripping tool is used for elastically deforming the gripping parts other than the main gripping part on the other side when viewed from the main gripping part. A gripping part is provided which includes a main body part that can be arranged along an object to be gripped and a plurality of gripping parts extending from the main body part, and elastically deforms the gripping part when gripping the target object. A gripping tool capable of widening the interval between the parts and gripping the object by a return force of elastic deformation of the gripping part, wherein the plurality of gripping parts extend from one side in the width direction of the main body part. A first grip portion and a second grip portion extending from the other side in the width direction of the main body portion, and when the plurality of grip portions are viewed from the longitudinal direction of the main body portion, A distance between the end of the first grip and the end of the second grip is narrower than the maximum distance in the width direction between the first grip and the second grip ;
Two gripping devices for elastically deforming the grip part,
One of the gripping instruments is used to elastically deform the gripping part other than the main gripping part on one side when viewed from the main gripping part located in the center of the plurality of gripping parts,
The other gripping tool is used for elastically deforming the gripping parts other than the main gripping part on the other side when viewed from the main gripping part. A gripping part is provided which includes a main body part that can be arranged along an object to be gripped and a plurality of gripping parts extending from the main body part, and elastically deforms the gripping part when gripping the target object. A gripping tool capable of widening the interval between the parts and gripping the object by a return force of elastic deformation of the gripping part, wherein the plurality of gripping parts extend from one side in the width direction of the main body part. A first grip portion and a second grip portion extending from the other side in the width direction of the main body portion, and when the plurality of grip portions are viewed from the longitudinal direction of the main body portion, A distance between the end of the first grip and the end of the second grip is narrower than the maximum distance in the width direction between the first grip and the second grip ;
Two gripping devices for elastically deforming the grip part,
One of the gripping instruments is used to elastically deform the gripping part other than the main gripping part on one side when viewed from the main gripping part located in the center of the plurality of gripping parts,
The other gripping tool is used for elastically deforming the gripping parts other than the main gripping part on the other side when viewed from the main gripping part. A main body part that can be arranged along an object to be gripped, and a plurality of gripping parts that extend from the main body part. When gripping the target object, the gripping part is located outside the width direction of the main body part. and the distance of the distal ends of the grip portion is widened and graspable gripper said object by returning force of the elastic deformation of the gripping portion by headed elastically deformed,
Two gripping devices for elastically deforming the grip part,
One of the gripping instruments is used to elastically deform the gripping part other than the main gripping part on one side when viewed from the main gripping part located in the center of the plurality of gripping parts,
The other gripping tool is used for elastically deforming the gripping parts other than the main gripping part on the other side when viewed from the main gripping part.