JP2013123597A - Flexible object punching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flexible object punching device capable of forming holes in the flexible object without unnecessarily deforming the flexible object in a step of stabbing punch cutting edges into the flexible object and removing the flexible object from the punch cutting edges.SOLUTION: This flexible object punching device 3 for forming a plurality of holes in the flexible object 1 includes: a netted receiving plate 7 having a plurality of through-holes aligned into a net-like shape; a punching member 11 having a plurality of punch cutting edges 9 each of which penetrates each through-hole of the netted receiving plate 7; a pressing face material 13 facing the plurality of cutting edges 9; and a pressing means 15 for moving the pressing face material 13 towards the punching member 11. The flexible object 1 is disposed between the netted receiving plate 7 and the pressing face material 13, and the flexible object 1 that is stabbed by the plurality of punch cutting edges 9 by moving the pressing face material 13 is received by the netted receiving plate 7.

Description

  The present invention relates to a flexible material punching device that forms a plurality of holes in a flexible material that is particularly vulnerable.

  In the treatment of a full-thickness skin defect wound, a plate-like flexible material such as a freeze-dried collagen sponge laminated with a silicone film or a single-layer freeze-dried collagen sponge may be used. In this case, the dermis layer can be regenerated by sticking a flexible material to the wound and growing fibroblasts and capillaries generated in the human body into the gaps in the collagen sponge.

  Conventionally, there has been an attempt to form a plurality of slit-like holes 103 in the flexible object 101 as shown in FIG. 6 in order to quickly guide fibroblasts and capillaries to the entire flexible object. Further, the hole 103 serves to promote the discharge of body fluid that oozes from the wound. However, if a blade or the like is pierced into the flexible object 101 to form the hole 103 in the flexible object 101, the flexible object 101 may be torn or damaged, or the flexible object 101 may be distorted or sponge-like There arises a problem that the gap of the object 101 is crushed. The above problem also occurs when an external force is applied to the flexible object 101 after it has been stabbed into the flexible object 101 and then is released from the blade or the like.

JP 03-224573 A Japanese Patent Laid-Open No. 04-108444 JP 05-43734 A Japanese Patent Laid-Open No. 07-194687 Japanese Patent Laid-Open No. 10-80438 JP-A-2005-314

  The present invention has been made in view of the above circumstances, and in a process of piercing a flexible object with a punch cutting blade and detaching the flexible object from the punch cutting blade, the flexible object is not unnecessarily deformed. It is an object of the present invention to provide a flexible punching device that can form a hole in a hole.

  The present invention is a flexible material punching device for forming a plurality of holes in a flexible material, and is inserted into a mesh receiving plate having a plurality of through holes arranged in a mesh shape and the through holes of the mesh receiving plate, respectively. A punching member having a plurality of punch cutting edges, a pressing face material facing the plurality of punch cutting edges of the punching member, and a pressing means for moving the pressing face material toward the plurality of punch cutting edges, A flexible material is disposed between the plurality of punch cutting blades and the pressing face material so as to face the mesh receiving plate with a gap, and the pressing face material moves to move the plurality of punches. The mesh receiving plate supports a flexible object pierced by a cutting blade.

  Further, the present invention is characterized in that the mesh receiving plate is a rigid body. Further, the present invention is characterized in that the pressing face material overlaps a flexible object from above the mesh receiving plate, and the perforating member supports the mesh receiving plate.

  According to the flexible object punching device of the present invention, a plurality of punch cutting blades respectively inserted into the plurality of through holes of the mesh receiving plate are pierced into the flexible object disposed between the mesh receiving plate and the pressing face material. Thus, a plurality of holes arranged in a mesh shape can be formed in the flexible material. In this process, since the mesh receiving plate is located below the flexible material and a gap is maintained between the flexible material and the mesh receiving plate, the flexible material is unnecessarily compressed between the mesh receiving plate and the pressing face material. The conventional problem does not occur. That is, according to the flexible material punching apparatus according to the present invention, it is possible to form a hole in the flexible material without distorting the flexible material, and the flexible material is not torn or damaged.

  Further, according to the flexible object punching apparatus of the present invention, the pressing face material overlaps the flexible object from above the mesh receiving plate, and the perforating member supports the mesh receiving plate. For this reason, in the state where the plurality of punch cutting blades respectively inserted through the plurality of through holes of the mesh receiving plate penetrate the flexible material, the plurality of punch cutting blades are in contact with the pressing face material, and the mesh receiving plate, the pressing face material, A gap is secured between the two. This gap prevents the flexible material from being excessively compressed by the moving force of the pressing face material, and prevents the flexible material from being crushed.

  Further, when the plurality of punch cutting blades pierce the flexible object, a plurality of holes are formed in the flexible object, and the flexible object is supported by the mesh receiving plate. By simply lifting the mesh receiving plate from the punching member by the operator, the punch cutting blade can be extracted from the flexible material and the through hole of the mesh receiving plate, and the flexible material can be easily detached from the punching member. In this process, the entire flexible object is received by the highly rigid mesh receiving plate, so that the flexible object is not unnecessarily deformed, and the conventional problem does not occur.

The front view which fractured | ruptured some flexible object punching apparatuses which concern on embodiment of this invention. The perspective view of the principal part of the flexible article punching apparatus which concerns on embodiment of this invention. (A) is sectional drawing which shows the 1st process of operation | movement of the flexible punching apparatus which concerns on embodiment of this invention, (b) is sectional drawing which shows the 2nd process, (c) is a cross section which shows the 3rd process. Figure. (A) is sectional drawing which shows the 4th process of operation | movement of the flexible punching apparatus which concerns on embodiment of this invention, (b) is sectional drawing which shows the 5th process. (A) is sectional drawing which shows the shape of the hole formed in the soft material by the soft material punching apparatus which concerns on embodiment of this invention, (b)-(e) is a perspective view which each shows the modification of a punch cutting blade, (F) is a fracture | rupture perspective view which shows the modification of a mesh receiving plate. The top view which shows the example of a form of a flexible material.

  1 and 2 show a flexible material punching device 3 that forms a plurality of holes in the flexible material 1. The flexible material punching device 3 includes a mesh receiving plate 7 having a plurality of through holes 5, a punching member 11 having a plurality of punch cutting edges 9, a pressing face material 13 facing the plurality of punch cutting edges 9, and a pressing face. And pressing means 15 for moving the material 13 toward the mesh receiving plate 7.

  The mesh receiving plate 7 is formed by forming a plurality of through holes 5 and four pin insertion holes 17 on a relatively rigid plate made of rectangular stainless steel. The plurality of through holes 5 are arranged in a mesh pattern along a plurality of virtual lines that are parallel to or intersect each other. The four pin insertion holes 17 are respectively arranged at the corners of the mesh receiving plate 7.

  The piercing member 11 includes bases 20 and 21 that project four pins 19 upward from the corners, and a core member 23 that projects a plurality of rectangular tooth-shaped punch cutting blades 9 upward. The plurality of punch cutting edges 9 are arranged in the same mesh shape as the plurality of through holes 5. The base 21 has a rectangular opening 25 into which the core member 23 is fitted, and the core member 23 is fixed inside the opening 25. When the four pins 19 of the punching member 11 are respectively inserted into the four pin insertion holes 17 of the mesh receiving plate 7, the mesh receiving plate 7 is positioned on the punching member 11.

  As shown in FIG. 3A, the above positioning means that a plurality of punch cutting blades 9 of the perforating member 11 are respectively inserted into a plurality of through holes 5 of the mesh receiving plate 7, and the mesh receiving plate 7 and the perforating member 11 are inserted. Means that they overlap each other. In this state, the punching member 11 supports the mesh receiving plate 7, and the punch cutting edge 9 of the punching member 11 passes through the through hole 5 of the mesh receiving plate 7 and protrudes above the mesh receiving plate 7. The pressing face material 13 is an acrylic resin flat plate that overlaps the flexible object 1 from above the mesh receiving plate 7.

  As shown in FIG. 1, the pressing means 15 includes a plurality of guide poles 27 extending in the vertical direction, a bottom plate material 29 joined to the lower ends of the plurality of guide poles 27, and an upper plate material joined to the upper ends of the plurality of guide poles 27. 31, a lifting plate 33 guided by a plurality of guide poles 27, a plurality of compression coil springs 35 respectively attached to the plurality of guide poles 27, and a drive device 37 for lifting and lowering the lifting plate 33.

  The same two guide poles 27 and compression coil springs 35 shown in FIG. 1 are arranged behind them. The driving device 37 outputs a force that pushes the manual lever 39 downward by the operator as a force that pushes the push rod 43 downward by a cam mechanism built in the housing 41. The push rod 43 is joined to the upper surface of the lifting plate 33, and the lifting plate 33 moves up and down according to the operation of the push rod 43. When the operator releases the hand from the manual lever 39, the push rod 43 rises and the manual lever 39 returns to the illustrated posture.

  A method of using the flexible material punching device 3 will be described below. FIG. 3A shows the flexible object 1, the mesh receiving plate 7, the piercing member 11, and the pressing face material 13. These elements are arranged directly below the lifting plate 33 shown in FIG. As shown in the figure, the step of receiving the flexible object 1 at the tips of the plurality of punch cutting blades 9 and stacking the pressing face material 13 on the flexible object 1, that is, the plurality of punch cutting edges 9 and the pressing face material 13 In the meantime, the process of placing the flexible object 1 so as to face the mesh receiving plate 7 with a gap is left to the manual operation of the operator. Regarding the elements of the flexible material punching device 3, the ratios of the number, shape, and dimensions shown in FIGS. 3A to 4B are selection items determined by the convenience of their explanation.

  Subsequently, the operator lowers the push rod 43 of the driving device 37 and pushes down the lifting plate 33 against the elastic force of the plurality of compression coil springs 35. As a result, the pressing face member 13 moves downward together with the lifting plate 33 toward the mesh receiving plate 7 and the punching member 11, and as shown in FIGS. 3B and 3C, the punch cutting blade of the punching member 11. The tip of the punch cutting blade 9 is pierced into the flexible object 1 compressed between 9 and the pressing face material 13. In this process, since the mesh receiving plate 7 is located below the flexible object 1 and a gap is maintained between the flexible object 1 and the mesh receiving plate 7, the flexible object 1 is connected to the mesh receiving plate 7 and the pressing face material 13. Is not unnecessarily compressed, and the flexible article 1 is not torn or damaged.

  The pressing face material 13 further moves downward. As a result, as shown in FIG. 3C, the tip of the punch cutting edge 9 penetrating the flexible object 1 comes into contact with the pressing face material 13. In this state, a gap for preventing the flexible object 1 from being excessively compressed is secured between the mesh receiving plate 7 and the pressing face member 13. In order to adjust the lower limit height of the pressing face material 13, the stroke by which the drive device 37 pushes the push rod 43 downward may be increased or decreased, or the pressing face material 13 may be changed to one having a different plate thickness. On the other hand, the mesh receiving plate 7 supports the flexible object 1 pierced by the plurality of punch cutting edges 9, and when the plurality of punch cutting edges 9 pierce the flexible object 1, the flexible object 1 has a plurality of slit-like shapes. A hole will be formed.

  The operator turns the push rod 43 of the drive device 37 upward. As a result, as shown in FIG. 4A, the pressing face material 13 together with the lifting plate 33 moves above the flexible object 1 pierced with the punch cutting edge 9. Finally, as shown in FIG. 5B, the operator lifts the mesh receiving plate 7 from the perforating member 11 and cuts the punch from the flexible object 1 received by the mesh receiving plate 7 and the through hole 5 of the mesh receiving plate 7. The blade 9 is extracted. Thereby, the flexible object 1 can be easily detached from the piercing member 11.

  Further, in the process in which the operator lifts the mesh receiving plate 7 from the perforating member 11, the entire flexible object 1 is received by the mesh receiving plate 7 which is a rigid body. For this reason, the flexible object 1 is not unnecessarily deformed, and the flexible object is not torn or damaged. The above rigid body means that the mesh receiving plate 7 lifted from the piercing member 11 has such a rigidity that it is not twisted or bent by an external force. Reference numeral 45 in FIG. 4B indicates a hole formed in the flexible object 1. Reference numeral 47 in FIG. 2 indicates a recess for inserting a finger to the lower side when the operator lifts the mesh receiving plate 7.

  It should be noted that the present invention can be carried out in a mode in which various improvements, modifications, or variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. The dimensions, shapes, and materials of the mesh receiving plate 7, the punch cutting blade 9, the punching member 11, and the pressing face material 13 are not limited. The depression angle at the tip of each punch cutting blade 9 may be 45 ° or less, but by setting this depression angle to around 20 °, the frictional force when the punch cutting blade 9 pierces the flexible object 1 is remarkably reduced. Moreover, the compressive force received by the flexible object 1 can be reduced by the reaction force that the tip of the punch cutting blade 9 pierces the flexible object 1.

  When the pressing face material 13 is joined in advance to the flexible object 1 shown in FIG. 3A and the pressing face material 13 is raised as shown in FIG. The punch cutting edge 9 may be detached. As shown in FIG. 3 (c), the punch cutting edge 9 is formed so that a gap remains between the flexible object 1 and the mesh receiving plate 7 with the tip of the punch cutting edge 9 in contact with the pressing face material 13. The tooth height may be set. Further, when replacing the perforating members such as the mesh receiving plate 7 and the perforating member 11, the perforating member 11 may be pulled out from directly below the lifting plate 33 by pulling the handle 49 shown in FIGS. good.

  As shown in FIG. 5A, the hole 45 formed in the flexible object 1 may have a shape that follows the outline of the punch cutting edge 9, and does not necessarily pass through the flexible object 1. Moreover, the shape of the through-hole 5, the mesh receiving plate 7, and the punch cutting blade 9 is not limited. Punch cutting blades 90, 91, and 92 shown in FIGS. 5B to 5E may be inserted through the through holes 50, 51, and 52 shown in FIG.

  The present invention is not limited to the medical field, and is a technique useful for processing the flexible object 1 having any application, material, or shape.

  DESCRIPTION OF SYMBOLS 1,101 ... Flexible object, 3 ... Flexible material punching device, 5 ... Through-hole, 7 ... Mesh receiving plate, 9 ... Punch cutting blade, 11 ... Perforated member, 13. ..Pressing face material, 15 ... Pressing means, 17 ... Pin insertion hole, 19 ... Pin, 20,21 ... Base, 23 ... Core member, 25 ... Opening, 27 ... guide pole, 29 ... bottom plate material, 31 ... upper plate material, 33 ... lift plate, 35 ... compression coil spring, 37 ... drive device, 39 ... manual lever, 41 ... housing, 43 ... push rod, 45,103 ... hole, 47 ... recess, 49 ... grip.

Claims (3)

A flexible material punching device for forming a plurality of holes in a flexible material,
A mesh receiving plate having a plurality of through holes arranged in a mesh shape, a punching member having a plurality of punch cutting blades inserted through the through holes of the mesh receiving plate, and a plurality of punch cutting blades of the punching member An opposing pressing face material, and pressing means for moving the pressing face material toward the plurality of punch cutting blades,
A flexible material is disposed between the plurality of punch cutting blades and the pressing face material so as to face the mesh receiving plate with a gap, and the pressing face material moves to move the plurality of punches. A flexible material punching device, wherein the mesh receiving plate supports a flexible material pierced by a cutting blade.   The flexible material punching device according to claim 1, wherein the mesh receiving plate is a rigid body.   3. The flexible punching device according to claim 1, wherein the pressing face material overlaps a flexible object from above the mesh receiving plate, and the punching member supports the mesh receiving plate.

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