JP5761966B2 - Negative pressure treatment loading material - Google Patents

Description

 The present invention relates to a negative pressure treatment loading material loaded inside a covering film that seals a wound in a negative pressure treatment for applying a negative pressure to a wound.

 Conventionally, negative pressure treatment of a wound is performed by sealing the wound with a covering film and supplying a drug or a washing solution to the wound while keeping the inside of the wound at a negative pressure. In addition, a water-permeable material for introducing a drug or a washing liquid to the wound is loaded inside the covering film. Examples of these are disclosed in the following patent documents. In the negative pressure treatment described here, a medicine or a washing liquid is supplied to the wound, while a method of sucking it from the inside of the covering film and a wound exudate are only sucked without using the medicine. Methods are included.

However, in order for the permeable material to conform uniformly throughout the wound, the permeable material must be shaped using a blade such as a scissors so that the permeable material follows the shape of the wound. In this case, when an operator cuts a blade such as a scissors into the water-permeable material many times, the water-permeable material is cut into pieces, which causes generation of scraps. Also, the use of a blade is indispensable when cutting the water-permeable material according to the size of the wound. For this reason, it takes time and effort to finish the water-permeable material into a desired shape or size at the medical site. In addition, when the water-permeable material is forcibly split by manually pulling the water-permeable material, the cut surface becomes rough and debris that may enter the wound is generated.

Special table 2008-517690 JP 2006-528038 A Special table 2009-525087 gazette Special table 2009-506878

 The present invention has been made in view of the above circumstances, and an object thereof is to provide a negative pressure treatment loading material that can be easily shaped or cut without using a blade.

In the present invention, a base material made of a water-permeable elastic body is divided into a plurality of partial blocks, and the plurality of partial blocks are connected to each other via a connecting portion made of the base material having a smaller cross-sectional area than the partial block. and Na Tsu, shape the depth of the wound of the base material, size of the surface area, or in order to adjust to fit the shape of the connecting portion of the object to be broken under tension to the base material by cutting, disconnect the partial souls from the base material, the shape of the base material, characterized in that it is shaped into a unique shape of the wound.

Further, in the present invention, the connecting portion is disposed in a state including a substantially central portion of the surface where the partial souls face each other, and the ratio of the sectional area of the partial soul to the connecting portion is 1/10 to 1/50. Or the thickness of the said connection part is 1.5-0.3 mm, It is characterized by the above-mentioned.

Further, the present invention is characterized in that the plurality of partial chunks are arranged in a thickness direction, a width direction, and a longitudinal direction of the base material orthogonal to each other .

Further, the present invention is characterized by forming a fitting hole that immerses end of the hose before Symbol part mass.

 In the negative pressure treatment loading material according to the present invention, when a tension is applied to a base material made of a water-permeable elastic body, the stress is concentrated on a connecting portion having a smaller cross-sectional area than the partial lump, so that the connecting portion is immediately cut. can do. When shaping or cutting the negative pressure treatment loading material, a target connecting portion to be broken is selected from all the connecting portions, and adjacent partial masses connected by this connecting portion are manually connected to each other. The base material can be easily separated by simply pulling apart. For this reason, according to the present invention, the labor of preparing a knife such as a scissors at the medical site is omitted, and the base material of the permeable elastic body is shaped so as to conform to the unique shape of the wound, or has an appropriate size. The cutting work can be performed quickly.

 The above stress remains immediately after the connecting portion is cut and acts as a force for contracting the cut end of the connecting portion, so that the connecting portion is prevented from being fragmented, and waste of the permeable elastic body is scattered. Can be prevented. In addition, the base material is kept connected by a connecting portion other than the connecting portion cut as described above. For this reason, the negative pressure treatment loading material according to the present invention is advantageous in that it does not inadvertently disperse before being attached to a wound, or individual partial masses do not fall off from the base material.

 Furthermore, when the arrangement direction of the plurality of partial masses is the thickness direction, the width direction, and the longitudinal direction of the base material, according to the negative pressure treatment loading material according to the present invention, the shape of the wound, the area of the surface area Alternatively, the dimensions of the base material in the thickness direction, the width direction, and the longitudinal direction can be freely adjusted to suit the depth.

 Furthermore, since the load for negative pressure treatment according to the present invention has a plurality of partial blocks adjacent to each other with a notch formed in the base material of the water-permeable elastic body, the work for shaping or cutting the base material Since the person can recognize the location where the base material is cut using the notch as a mark, it is easy to predict the finish of the base material. Further, when the connecting portion is in the form of a thread, the stress can be remarkably concentrated on the connecting portion, so that the connecting portion can be cut more easily.

 Furthermore, the negative pressure treatment loading material according to the present invention can accommodate the hose inside the covering sheet without unnecessarily bending the hose, for example, when a drug or the like is sucked from the wound by a hose that penetrates the covering sheet. Can do. Moreover, in order to secure the room for accommodating a hose inside a coating sheet, the extra effort which forms a notch in a partial lump can be saved.

The perspective view which shows the example which shape | molded the negative pressure treatment loading material which concerns on the 1st Embodiment of this invention. Sectional drawing which shows the principal part of the negative pressure treatment loading material which concerns on the 1st Embodiment of this invention. (A) is a side view of the principal part of the loading material for negative pressure treatment which concerns on the 1st Embodiment of this invention, (b) is a side view which shows the process of cutting it. (A), (b) is a perspective view of the modification of the partial lump which can be applied to the negative pressure treatment loading material according to the first embodiment of the present invention, (c) is a single part cut from the base material The perspective view of a lump. (A) is sectional drawing which shows the process of loading the negative pressure treatment loading material which concerns on the 1st Embodiment of this invention, (b) is sectional drawing which shows the usage example. (A) is a perspective view which shows the principal part of the loading material for negative pressure treatment which concerns on the 2nd Embodiment of this invention, (b) is a perspective view which shows the form which curved it. (A) is a perspective view which shows the principal part of the negative pressure treatment loading material which concerns on the 3rd Embodiment of this invention, (b) is a perspective view which shows the modification. (A) is sectional drawing which shows the usage example of the negative pressure treatment loading material which concerns on the 4th Embodiment of this invention, (b), (c) is a perspective view which shows the modification of the partial lump.

As shown in FIGS. 1 and 2, the negative pressure treatment loading material 1 according to the first embodiment of the present invention includes a base material 3 made of a water-permeable elastic body divided into a plurality of partial masses 5. A plurality of partial chunks 5 are connected to each other via a connecting portion 7 having a smaller cross-sectional area than the chunk 5. For example, it is preferable to apply a foamed resin (sponge) having continuous pores as the water-permeable elastic body, such as polyurethane foam, polyester urethane foam, or polyether urethane foam. The ratio of the cross sectional area of the above, the connecting portion 7 to the portion ingot 5 is preferably 1 / 10-1 / 5 0. It is preferable that the thickness of the connection part 7 is 1.5-0.3 mm .

In FIG. 2, a gap is formed between adjacent partial chunks 5 in order to represent the connecting portion 7, but the adjacent partial chunks 5 may be in close contact as shown in FIG. 1. Each partial block 5 is a cube in which the length of one side in the thickness direction, the width direction, and the longitudinal direction is about 1 to 4 cm. The length of one side of the partial block 5 may exceed 4 cm or less than 1 cm. The shape and number of the partial chunks 5 are not limited, and each partial chunk 5 may be a polyhedron, a sphere, or a cone as shown in FIGS. 4 (a) and 4 (b). Further, it is not necessary that the shapes or dimensions of all the partial blocks 5 are the same.

 Next, a procedure for using the negative pressure treatment loading material 1 will be described. The operator selects a connection portion to be broken from all the connection portions 7. For example, in order to cut out the three partial chunks 5 given dots in FIG. 3A, an operator grips these partial chunks 5 and applies a force to the base material 3 so that the three parties separate from each other. Thereby, the stress which generate | occur | produces in the base material 3 concentrates on the connection part 7 used as the object to cut | disconnect, and these connection parts 7 expand | extend as shown in FIG.3 (b). And since it will fracture | rupture immediately when the limit which can extend the connection part 7 is exceeded, the base material 3 is cut out at this time. FIG. 4C shows the cut 9 of the connecting portion 7 of the partial block 5 separated from the base material 3.

 In the manner described above, the operator can easily shape the negative pressure treatment loading material 1 so as to conform to the unique shape of the wound, or can cut it to an appropriate size. Further, since the operator does not need to use a blade to cut the base material 3, labor at the medical site is greatly reduced. The above stress remains immediately after the connecting portion 7 is broken, and acts as a force for contracting the cut 9 of the connecting portion 7, so that the connecting portion 7 is prevented from being fragmented, and the waste of the permeable elastic body is removed. It is possible to prevent scattering.

FIG. 5A shows a process in which the negative pressure treatment loading material 1 shaped to follow the wound 11 is loaded. FIG. 5B shows an example in which the negative pressure treatment loading material 1 loaded inside the covering sheet 13 is compressed at atmospheric pressure and is in close contact with the wound 11. A hose for guiding negative pressure to the inside of the covering sheet 13 is omitted in the figure. The connection of the base material 3 of the negative pressure treatment loading material 1 shown in FIG. 5A is maintained by the connection portions 7 other than the connection portion cut as described above. For this reason, there is an advantage that the negative pressure treatment loading material 1 is not inadvertently dispersed before being attached to the wound 11 or that the individual partial blocks 5 do not fall off the base material 3.

 Furthermore, the direction in which the plurality of partial chunks 5 are arranged coincides with the three directions of the thickness direction, the width direction, and the longitudinal direction of the base material 3 as shown in FIG. The operator can freely adjust the dimensions of the base material 3 in three directions so as to suit the width or shape. For example, when the wound 11 is relatively shallow, several partial chunks 5 are separated from the base material 3 so that the number of partial chunks 5 arranged in the thickness direction of the base material 3 is reduced. What is necessary is just to reduce the number which separates the partial lump 5 arranged in the thickness direction from the base material 3.

As shown in FIG. 6A, in the negative pressure treatment loading material 15 according to the second embodiment of the present invention, a plurality of notches 17 are formed in the rod-shaped base material 3, and the plurality of partial blocks 5 are mutually connected. It is adjacent to the notch 17 as a boundary. The plurality of notches 17 are arranged at equal intervals in the longitudinal direction of the base material 3, and the direction in which they are cut into the base material 3 is alternately opposite in the order in which the notches 17 are arranged in the longitudinal direction of the base material 3.

 An operator who shapes or cuts the negative pressure treatment loading material 15 can recognize a position where the base material 3 should be cut using the notch 17 as a mark, so that the finish after the base material 3 is cut can be easily predicted. be able to. Reference numeral 10 indicates a cut end of the connecting portion 7. As shown in FIG. 6B, the negative pressure treatment loading material 15 can be loaded inside the covering sheet in a curved form. At this time, the negative pressure treatment loading material 15 is deformed so that the inner notch 17 in which the base material 3 is curved closes and the outer notch 17 in which the base material 3 is curved is opened, among the plurality of notches 17. Without applying unnecessary force to the base material 3 of the pressure treatment loading material 15, the negative pressure treatment loading material 15 can be curved into a smooth arc shape.

 The number of the plurality of cutouts 17 or the interval between them is not limited at all, and the direction in which all the cutouts 17 cut into the base material 3 may be aligned to one side. Other configurations of the negative pressure treatment loading material 15 and the effects of the negative pressure treatment loading material 15 are the same as those of the negative pressure treatment loading material 1.

As shown to Fig.7 (a), the negative pressure treatment loading material 19 which concerns on the 3rd Embodiment of this invention makes the connection part 7 the thread form. As shown in FIG. 7B, a plurality of partial lumps 5 may be made to pass through a thread 20 made of synthetic resin such as nylon, and the plurality of partial lumps 5 may be connected by the thread 20. A plurality of partial chunks 5 may be connected by a plurality of yarns 20 intersecting each other. According to the negative pressure treatment loading material 19, the stress can be remarkably concentrated on the connecting portion 7, so that the connecting portion 7 or the thread 20 can be more easily cut. The structure of the other negative pressure treatment loading material 19 and the effect of the negative pressure treatment loading material 19 are the same as those of the negative pressure treatment loading material 1.

As shown to Fig.8 (a), the negative pressure treatment loading material 21 which concerns on the 4th Embodiment of this invention forms the insertion hole 25 which immerses the edge part of the hose 23 in the partial lump 5. FIG. . The hose 23 serves as a path for supplying a drug or the like to the wound 11, a path for sucking the drug or the like from the wound 11, or a path for connecting the inside of the covering sheet 13 to the pressure sensor. As shown in FIGS. 8B and 8C, the insertion hole 25 may be a slit cut into a cross shape or a star shape, or may be a pinhole having a smaller diameter than the hose 23. The insertion hole 25 may penetrate the partial block 5, but the back end 27 of the insertion hole 25 may be positioned inside the partial block 5.

 According to the negative pressure treatment loading material 21, the end of the hose 23 can be accommodated inside the covering sheet 13 without unnecessarily bending the hose 23 penetrating the covering sheet 13. Moreover, in order to secure the room for accommodating the edge part of the hose 23 inside the coating sheet 13, the extra effort which forms a notch in the partial lump 5 can be saved. The structure of the other negative pressure treatment loading material 21 and the effect of the negative pressure treatment loading material 21 are the same as those of the negative pressure treatment loading material 1.

 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. 5 (a) and 8 (a) show an example in which one negative pressure treatment loading material 1, 21 is attached to one wound 11, but a plurality of negatives derived from individual base materials 3 are shown. The pressure treatment loading materials 1, 15, 19, and 21 may be combined, and these may be attached to one wound 11.

 The negative pressure treatment loading material according to the present invention can be applied to negative pressure treatment such as suctioning wound exudate, irrigating the wound, or washing. The negative pressure treatment may be either a method of supplying a drug or a washing liquid to the wound while aspirating the wound from the inside of the covering film, or a method of simply sucking the exudate of the wound without using the drug or the like. .

 1,15,19,21 ... Negative pressure treatment loading material, 3 ... Base material, 5 ... Partial lump, 7 ... Connection part, 9, 10 ... Cut, 11 ... Wound, 13 ... covering sheet, 17 ... notch, 20 ... thread, 23 ... hose, 25 ... insertion hole, 27 ... back end.

Claims (4)

Base material composed of water-permeable elastic member is divided into a plurality of partial masses, through a connecting portion made of smaller the base material cross-sectional area than the partial mass, said plurality of partial masses has Tsu Tsurana mutually In order to adjust the shape of the base material to suit the depth, surface area, or shape of the wound, by applying tension to the base material and cutting the connection portion to be broken A negative pressure treatment loading material , wherein a partial soul is separated from the base material, and the shape of the base material is shaped into a unique shape of the wound . The connecting portion is arranged in a state where the partial soul includes a substantially central portion of the surfaces facing each other, and the ratio of the sectional area of the partial soul to the connecting portion is 1/10 to 1/50 or the meat of the connecting portion. The negative pressure treatment loading material according to claim 1, wherein the thickness is 1.5 to 0.3 mm. The negative pressure treatment loading material according to claim 1 or 2, wherein the plurality of partial chunks are arranged in a thickness direction, a width direction, and a longitudinal direction of the base material orthogonal to each other. The negative pressure treatment loading material according to any one of claims 1 to 3, wherein an insertion hole for immersing the end portion of the hose is formed in the partial block .

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