JP5852532B2 - Surgical absorbent sheet and method for producing the same - Google Patents

Description

The present invention relates to a surgical absorbent sheet used in, for example, a surgical operation such as brain surgery, and a method for manufacturing the same.

  For example, during surgical operations such as neurosurgery, absorption of surgical blood with a dedicated string provided with a string member and an absorbent sheet body to absorb the blood and body fluids of the patient, protect the affected area and prevent dryness, etc. Use a sheet. This surgical absorbent sheet is used so that the main body of the absorbent sheet is in contact with the affected area such as the brain surface.

  Here, since the absorbent sheet main body is generally formed of an absorbent non-woven fabric, the absorbent sheet main body adheres to the affected area due to absorbed blood and physiological saline, and the absorbent sheet main body is peeled off from the affected area. There was a possibility that it would become a resistance, and the peelability would decrease, making it impossible to easily collect the surgical absorbent sheet.

  In order to improve such peelability, an absorbent member, a collection thread attached to the absorbent member, and a mesh-like covering member that has water repellency and covers at least a part of the absorbent member are provided. A surgical absorbent sheet having the above-described configuration is known (see, for example, Patent Document 1).

  In this surgical absorbent sheet, the mesh-shaped covering member allows a gap between the absorbent member and the affected part, so that the contact area with the affected part can be reduced and the peelability can be improved.

JP 2005-305044 A

  Here, depending on the operation, there is a case where the operation proceeds while the surgical absorption sheet is not peeled immediately from the state in which the surgical absorbent sheet is in contact with the affected part, and is kept in contact for a long time.

  In this case, even if it is the structure of patent document 1, the blood which entered into the mesh | network of the covering member and the blood of the circumference | surroundings solidify with progress of time, and the problem that it becomes difficult to peel from an affected part can be considered. .

This invention is made | formed in view of such a point, and it aims at providing the surgical absorption sheet which is easy to peel from an affected part, and its manufacturing method .

The surgical absorbent sheet according to claim 1 is a surgical absorbent sheet comprising an absorbent sheet main body and a string-like string member attached so as to be pulled out from an end of the absorbent sheet main body, The absorbent sheet main body is located on one surface and has an absorbent property, the non-adhesive member located on the other surface and disposed integrally with the absorbent member, and the absorbent member and a welded X-ray contrast member, the non-sticking member is formed of a film-like resin sheet surface processing has not been performed, the X-ray contrast member, the string member in the absorbent sheet body Is arranged to cross the string member in the vicinity of the end from which the cord is pulled out, and the string member is attached to the absorbent sheet main body in a loop shape across the X-ray contrast member .

The surgical absorbent sheet according to claim 2 is the surgical absorbent sheet according to claim 1, wherein the X-ray contrast member has a color different from that of the absorbent member, and from the absorbent member side of the absorbent sheet body. It is visible.

Absorption sheet for surgery according to claim 3, in surgical absorbing sheet according to claim 1 or 2, wherein the non-sticking member has a plurality of apertures, the diameter of these openings, 0 and at 0.5mm less than .1Mm, the distance between the plurality of openings is Ru Ru der than 2.0mm or less 1.0mm Monodea.

The method for producing a surgical absorbent sheet according to claim 4 is the method for producing a surgical absorbent sheet according to any one of claims 1 to 3, wherein the X-ray contrast member includes a press section having no heat source. at welding apparatus that includes a press receiving portion having a heat source, in a state where the X-ray opaque filament is disposed in the press section side of the absorbent member, by welding the X-ray opaque filament to said absorbent member To form .

The method for manufacturing a surgical absorbent sheet according to claim 5 is the method for manufacturing the surgical absorbent sheet according to claim 4, wherein the same hole pattern is used a plurality of times at predetermined intervals on the non-adhesive member. A plurality of apertures are formed.

According to the first aspect of the present invention, since the non-adhesive member is formed of a film-like resin sheet that has not been subjected to surface treatment, it is easily peeled off from the affected part even if the affected part is contacted for a long time.

According to the invention described in claim 2, since the X-ray contrast member is visible from the side of the absorbent member in a color different from that of the absorbent member, the absorbent member side and the non-adhesive member in the absorbent sheet body Easy to check with the side.

According to the invention described in claim 3 , the non-adhesive member has a plurality of apertures, and the diameter of these apertures is not less than 0.1 mm and not more than 0.5 mm, and between the plurality of apertures. Since the distance is 1.0 mm or more and 2.0 mm or less, it is easy to suck the liquid by bringing the suction tube into contact with the non-sticking member.

According to the invention described in claim 4 , since the X-ray contrast yarn is press-welded in a state of being arranged on the press part side from the absorbent member, the X-ray contrast member is not too thin and the X-ray contrast by welding is used. Decrease in effect can be prevented.

According to the fifth aspect of the invention, since the same opening pattern is used, a plurality of opening portions can be easily formed in the non-sticking member.

(A) is a top view which shows the absorptive member side of the surgical absorption sheet which concerns on the 1st Embodiment of this invention, (b) is for the surgery which concerns on the 1st Embodiment of this invention. It is a top view which shows the non-sticking member side of an absorption sheet. It is a side view which shows the absorption sheet main body of the absorption sheet for a surgery same as the above. FIG. 3 is a configuration diagram showing an arrangement when an X-ray contrast yarn is welded to an absorbent member in the surgical absorbent sheet. FIG. 6 is a plan view showing a state of arrangement of a conventional X-ray contrast member in the surgical absorbent sheet. It is a top view which shows the structure of the non-adhesive member of the absorbent sheet for a surgery which concerns on the 2nd Embodiment of this invention.

  The configuration of the first embodiment of the present invention will be described below with reference to the drawings.

  In FIG. 1, reference numeral 1 denotes a surgical absorbent sheet. This surgical absorbent sheet 1 absorbs blood and body fluids from affected areas such as the brain surface during a surgical operation such as a neurosurgery, or a physiological saline. It is used for the purpose of impregnating water to prevent drying around the affected area or to protect the affected area.

  The surgical absorbent sheet 1 includes a substantially rectangular absorbent sheet main body 2 having a longitudinal direction and a width direction, and a string-like string member 3 is attached to the absorbent sheet main body 2 so as to be pulled out from one end in the longitudinal direction. It has been.

  The material of the string member 3 can be appropriately selected according to the use. However, in consideration of the use in the brain surgery, for example, a synthetic resin such as polyester mixed with carbon black and formed into a thread shape is used. A flexible material made of fiber or cotton yarn is preferred.

  The length of the string member 3 can be appropriately designed according to the application, but is preferably about 25 cm in consideration of use in brain surgery or the like.

  The absorbent sheet main body 2 is provided with an absorbent member 4 on the surface side which is one surface, and the non-adhesive member 5 absorbs on the opposite side to the absorbent member 4, that is, on the back surface side which is the other surface. It is arranged integrally with the sex member 4.

  The absorptive member 4 is a substantially rectangular shape having a longitudinal direction and a width direction, and is a sheet body that has liquid absorbency and can absorb body fluid such as blood in an affected area and liquid such as physiological saline.

In addition, the absorbent member 4 is preferably formed of a nonwoven fabric using cotton, rayon, pulp, or the like, for example, and the weighing is preferably 10 g / m ² or more and 100 g / m ² or less. More specifically, as the absorbent member 4, for example, a product name COT ACE (registered trademark) manufactured by Unitika Co., Ltd., which is a cotton spunlace nonwoven fabric having a weight of 60 g / m ² can be used.

  Furthermore, the absorbent member 4 can be appropriately designed in size and thickness depending on the application, but considering use in brain surgery or the like, the length in the longitudinal direction is 10 mm or more and 80 mm or less, and the length in the width direction. Is preferably 5 mm or more and 30 mm or less and a thickness of about 0.1 mm or more and 1.0 mm or less.

  The non-adhesive member 5 is a film-like sheet body that has a smooth surface, does not absorb liquid such as blood, and is difficult to adhere to an affected part due to an anchor effect or the like.

Further, the non-sticking member 5 has a longitudinal direction and a width direction and has a substantially rectangular shape similar to that of the absorbent member 4 and preferably has a thickness of about 10 μm to 50 μm.

  Further, the non-adhesive member 5 is made of, for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (polyethylene terephthalate (polyethylene terephthalate), etc. It is preferable to form appropriately with resin such as PET) and polyurethane. In addition, since it is important that the non-sticking member 5 has a smooth surface, the surface treatment is not performed.

  Here, as shown in FIG. 1 and FIG. 2, the end of the absorbent sheet main body 2 from which the string member 3 is pulled out, that is, in the vicinity of one end in the longitudinal direction, absorbs with a color different from that of the absorbent member 4. An X-ray contrast member 6 having an X-ray contrast effect that is visible from the member 4 side is disposed.

  The X-ray contrast member 6 is disposed so as to intersect the string member 3 and along one end portion of the absorbent sheet main body 2 in the longitudinal direction.

  The X-ray contrast member 6 is composed of barium sulfate which is an X-ray contrast agent, polystyrene, and carbon black in consideration of the X-ray contrast effect, the color, the fusion action with the absorbent member 4, and the like. The X-ray contrast yarn 7 is formed by being welded to the absorbent member 4. In addition, what is necessary is just to determine suitably the material which comprises the X-ray contrast member 6, and the mixing | blending of the material according to an X-ray contrast effect, a color, a fusion | melting effect | action, etc.

  In the absorptive member 4, when the thickness of the X-ray contrast member 6 is reduced, the length L in the width direction of the X-ray contrast member 6 is increased and the amount of barium sulfate per unit area is reduced. It will decline.

  Therefore, when the X-ray contrast yarn 7 is welded to the absorbent member 4, heat is not transmitted to the X-ray contrast yarn 7 more than necessary, and the thickness of the X-ray contrast member 6 after welding is secured to some extent. It is preferable.

  Therefore, as shown in FIG. 3, the absorptive member 4 and the X-ray contrast yarn 7 use a welding apparatus including a press portion 8 having no heat source and a press receiving portion 9 having a heat source. The contrast yarn 7 is heat-welded in a state where the contrast yarn 7 is disposed on the pressing portion 8 side from the absorbent member 4.

  Since the absorptive member 4 and the X-ray contrast yarn 7 are welded in this way, the absorptive member 4 is disposed between the press receiving portion 9 having the heat source and the X-ray contrast yarn 7, so that the heat source Heat to the X-ray contrast yarn 7 is not easily transmitted, and the length L in the width direction of the X-ray contrast member 6 in the absorbent sheet body 2 can be prevented from becoming unnecessarily large.

  Further, in the surgical absorbent sheet 1 in which the X-ray contrast member 6 is arranged in this way, the string member 3 is located on the X-ray contrast member 6 from the other end side in the longitudinal direction in the absorbent sheet main body 2 from the X-ray contrast member 6. It is attached to straddle. That is, as shown to Fig.1 (a) and FIG.1 (b), the string member 3 is one side of the other end part side of the longitudinal direction in the absorption sheet main body 2 from one surface side to the other surface side. It is inserted and attached to the absorbent sheet main body 2 so as to loop over the X-ray contrast member 6.

  Next, the operation and effect of the first embodiment will be described.

  When a liquid such as blood in the affected area is to be absorbed in a surgery such as a brain surgery, the absorbent member 4 side of the absorbent sheet body 2 is brought into contact with the affected area. Moreover, when it is not desired to dry the affected part, the non-sticking member 5 side of the absorbent sheet main body 2 is brought into contact with the affected part.

  Thus, after a predetermined process in surgery or the like, the string member 3 is pulled to separate the absorbent sheet main body 2 from the affected area, and the surgical absorbent sheet 1 is collected.

And according to the surgical absorption sheet 1, since it has the non-adhesive member 5 formed with the film-like resin sheet which is not surface-treated , the surface of the non-adhesive member 5 is smooth, and it is in an affected part. The adhesive force due to a liquid such as blood due to contact for a long time is unlikely to act on the non-adhering member 5, and even if the absorbent sheet main body 2 is brought into contact with the affected part for a long time, it is easily peeled from the affected part.

  That is, for example, in the conventional surgical absorbent sheet such as Patent Document 1 described above, liquid such as blood that has been absorbed and entered into the mesh or fiber is solidified over time, and the peelability is reduced due to the anchor effect, etc. Since the surface of the non-adhesive member 5 is smooth in the surgical absorbent sheet 1, body fluid such as blood does not enter the non-adhesive member 5 and the adhesive force due to the anchor effect is difficult to act on. Compared to the absorbent sheet, the absorbent sheet body 2 can be easily peeled from the affected area.

  The surgical absorbent sheet 1 has an absorbent member 4 having liquid absorbency on one surface of the absorbent sheet main body 2 opposite to the non-adhesive member 5. Can absorb liquid.

  Furthermore, since the X-ray contrast member 6 of a color different from that of the absorbent member 4 is disposed on the absorbent member 4 side, the absorbent sheet body 2 serves as a mark for the X-ray contrast member 6. It is easy to confirm the side and the non-sticking member 5 side, and it is easy to use appropriately according to the purpose.

  Further, the X-ray contrast member 6 is provided in the vicinity of one end portion in the longitudinal direction, which is an end portion of the absorbent sheet main body 2 from which the string member 3 is pulled out, along the one end portion in the longitudinal direction. The length from the other end in the longitudinal direction of the sex member 4 to the X-ray contrast member 6 can be secured long, and a large portion capable of absorbing liquid can be secured.

  Furthermore, since the X-ray contrast member 6 is provided so as to intersect with the string member 3, it is difficult to remove the string member 3 from the absorbent sheet main body 2.

  Further, since the X-ray contrast member 6 is formed by welding the X-ray contrast yarn 7 to the absorbent member 4, the X-ray contrast member 6 is unlikely to protrude from the surface of the absorbent member 4.

  Further, since the X-ray contrast yarn 7 is welded in a state of being disposed closer to the press portion 8 than the absorbent member 4, heat transfer from the press receiving portion 9 having a heat source to the X-ray contrast yarn 7 can be suppressed. Therefore, the X-ray contrast member 6 does not become too thin after welding. Therefore, the length L in the width direction of the X-ray contrast member 6 in the absorption sheet main body 2 can be prevented from becoming unnecessarily large by welding, and a decrease in the X-ray contrast effect can be prevented.

  Further, since the X-ray contrast member 6 is formed by welding, there is no need to sew the string member 3 and the X-ray contrast member 6 as in the conventional configuration shown in FIG. The main body 2 can be attached to the absorbent sheet main body 2 so as to be inserted in one place from the one surface side to the other surface side so as to loop over the X-ray contrast member 6.

  Thus, since the string member 3 is attached to the absorbent sheet main body 2 so as to form a loop across the X-ray contrast member 6, it is possible to save the trouble of sewing and to prevent the absorbent member 4 from becoming hard by sewing. .

  Moreover, since the string member 3 is attached across the X-ray contrast member 6 from the other end side in the longitudinal direction of the absorbent sheet main body 2 from the X-ray contrast member 6, the string member 3 is used during recovery during surgery. The string member 3 is not easily detached from the absorbent sheet main body 2 by being caught by the X-ray contrast member 6.

In the above first embodiment, the absorbent sheet body 2 has a substantially rectangular configuration, not limited to such a configuration, shape and size of the absorbent sheet body 2 Ru can be designed appropriately.

The X-ray contrast member 6 is not limited to a configuration that is visible from the absorbent member 4 side of the absorbent sheet body 2. That is, for example, disposed between the non-sticking member 5 X-ray contrast member 6 and the absorbent member 4, but it may also be a visible structure of a non-sticking member 5 side of the absorbent sheet body 2.

Further, the X-ray contrast member 6 is not limited to the structure in which the X-ray contrast thread 7 is welded in a state of being disposed closer to the press portion 8 than the absorbent member 4, and the structure of the welding apparatus or the X in the welding apparatus. The arrangement of the line contrast member 6 and the absorbent member 4 can be set as appropriate.

  Next, a second embodiment will be described with reference to FIG. In addition, about the structure and effect | action same as the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the second embodiment, as shown in FIG. 5, the non-stick member 5 of the first embodiment is provided with a plurality of elliptical apertures 11.

  Here, in brain surgery, a suction tube is brought into contact with the absorbent sheet main body 2 while the surgical absorbent sheet 1 is in contact with the affected part, and a liquid such as blood is sucked through the surgical absorbent sheet 1. There is.

  And, when the surgical absorbent sheet 1 is used in a state where the non-adhesive member 5 side where the opening 11 is formed is in contact with the affected part, the suction tube is brought into contact with the absorbent member 4. The liquid such as blood can be sucked regardless of the size and arrangement of the opening 11 of the non-stick member 5.

  On the other hand, when the surgical absorbent sheet 1 is used with the absorbent member 4 in contact with the affected part, a suction tube is brought into contact with the non-adhesive member 5 to suck liquid such as blood. However, if the suction tube is brought into contact with the opening 11 in the non-sticking member 5, the tip of the suction pipe may be blocked by the non-sticking member 5 and liquid such as blood may not be sucked.

  Therefore, the non-adhesive member 5 has an aperture 11 in the non-adhesive member 5 and other apertures located closest to the aperture 11 than the diameter D1 of the suction tube used in the operation. It is preferable to form the opening portion 11 so that the distances X and Y between the opening portions 11 that are the distance to the portion 11 are shortened.

  The distance X between the apertures 11 is the distance between the apertures 11 in the width direction of the non-adhesive member 5, and the distance Y between the apertures 11 is the aperture in the longitudinal direction of the non-adhesive member 5. This is the distance between the holes 11.

  In addition, the non-sticking member 5 is easily broken when the opening ratio based on the size of the opening portion 11 and the distances X and Y between the opening portions 11 is too high. The fibers of the absorbent member 4 are likely to be exposed and the non-sticking property is lowered.

  Therefore, considering the non-adhesiveness of the non-adhesive member 5, the aperture 11 has the diameters d1 and d2 of the aperture 11 of 0.1 mm to 0.5 mm, and the distance X, Y is preferably 1.0 mm or more and 2.0 mm or less.

  In this embodiment, since the opening 11 is formed in an elliptical shape, the diameter d1 is the diameter of the opening 11 in the width direction of the non-sticking member 5, that is, the length of the short axis of the ellipse. The diameter d2 is a diameter of the opening 11 in the longitudinal direction of the non-fixing member 5, that is, a major axis that is the length of the major axis of the ellipse.

  The non-adhesive member 5 has a hole area ratio of 0.36% (for example, the diameter of the hole portions 11 is 0.1 mm and the distance between the hole portions 11 is 2.0 mm) or more, 17.4. % (For example, the diameter of the apertures 11 is 0.5 mm and the distance between the apertures 11 is 1.0 mm) or less.

  Here, a suction tube for brain surgery or the like has a diameter D of about 0.4 to 3.0 mm, and among these, a tube having a diameter of 1.0 to 2.0 mm is generally used. Therefore, as long as the distances X and Y between the apertures 11 of the non-adhesive member 5 are shorter than 1.0 mm, no matter which aperture of the non-adhesive member 5 is contacted, Since at least a part of 11 and the suction tube overlap, a liquid such as blood can be sucked by the suction tube through the opening 11.

  Further, if the opening 11 is made large in order to shorten the distances X and Y between the opening 11 in the non-sticking member 5, the opening ratio may become too high. The distances X and Y are not limited to a configuration shorter than 1.0 mm, and are preferably determined according to the suction tube to be used.

  The non-adhesive member 5 is assumed to have the opening 11 formed by a predetermined opening pattern.

  It is preferable that there are a plurality of such hole patterns depending on the diameters D1 and D2 of the suction pipes. However, in this case, it is necessary to prepare a plurality of hole patterns according to the types and number of suction pipes, which is complicated. turn into.

  Therefore, one aperture pattern in which the diameter of the aperture 11 after the aperture is 0.1 mm to 0.5 mm and the distance between the apertures 11 is in the range of 1.0 mm to 2.0 mm. By changing the number of drilling steps using this aperture pattern according to the diameters D1 and D2 of the suction tube, the aperture portion 11 in the non-stick member 5 can be obtained by the same aperture pattern. A plurality of apertures 11 can be formed such that the distances X, Y between them are shorter than the diameters D1, D2 of the suction tube.

  Specifically, when the distance between the apertures 11 in the aperture pattern, that is, the distance between the apertures 11 formed by the aperture pattern is shorter than the diameter D1 of the suction tube, this aperture pattern is set to 1 The non-adhesive member 5 is opened by reusing it to form the opening 11.

  Further, when a suction tube having a diameter D2 shorter than the diameter D1 is used and the distance between the opening portions 11 in the opening pattern is longer than the diameter D2 of the suction tube, the opening portion is used by using the opening pattern a plurality of times. 11 is formed.

  In addition, when forming the hole part 11 by using the same hole pattern several times, the number of the hole making processes by the hole pattern is not set, and between the hole parts 11 in the non-sticking member 5 The distances X and Y should be shorter than the diameters D1 and D2 of the suction pipe.

  In addition, when the opening portion 11 is formed by using the same opening pattern a plurality of times, the position of the opening pattern with respect to the non-sticking member 5 may be set randomly without being controlled. In the case where the position of the opening pattern with respect to the non-sticking member 5 is set at random, if the number of drilling steps is two, it is assumed that the positions of the opening portions 11 overlap, so at least three times. It is preferable to carry out a drilling step.

  On the other hand, if the number of the aperture portions 11 is increased by a plurality of drilling steps and the aperture ratio is increased, the non-sticking property may be lowered as described above. It is preferable to set the number of times not exceeding 4%. That is, for example, when the diameter of the apertures 11 in the aperture pattern is 0.3 mm and the distance between the apertures 11 is 1.6 mm, the aperture ratio in a single aperture process is 3.91. Since 17.4% / 3.91% = 4.5, it is preferable to form the opening 11 by a maximum of four drilling steps so as not to exceed 17.4%.

  Hereinafter, examples and comparative examples will be described.

  First, the suction performance of the suction tube with respect to a predetermined hole pattern was confirmed.

As the absorbent member 4, COT ACE (registered trademark) manufactured by Unitika Co., Ltd. having a weight of 60 g / m ² was used, and as the non-sticking member 5, a finely-opened polyurethane film was used.

  The non-sticking member 5 has an opening 11 formed in a predetermined opening pattern. Specifically, in this aperture pattern, the distance X between the widthwise apertures 11 in the non-adhesive member 5 is 1.5 mm, and the distance Y between the longitudinal apertures 11 in the non-adhesive member 5 is 1.3 mm. Further, the diameter d1 of the opening 11 in the width direction in the non-sticking member 5 is 0.2 mm, and the diameter d2 in the longitudinal direction of the non-sticking member 5 is 0.3 mm.

  Absorbent sheet main body 10 mm × 10 mm constituted using such absorbent member 4 and non-adhesive member 5 was taken as one specimen, and 0.2 ml of physiological saline was absorbed in one specimen.

  In addition, aspirator (manufactured by Tokyo Science Instruments, model number: ASPIRATOR A-3S) is equipped with a micro suction tube (manufactured by Fujita Medical Instruments), all side holes formed in the micro suction tube are closed with thumbs, and the aspirator is used. The micro suction tube was brought into contact with the non-adhesive member 5 and the angle of the micro suction tube with respect to the non-adhesive member 5 was set to 50 to 80 °.

  In this way, a suction test was performed on 50 specimens, and the number of specimens in which physiological saline was not absorbed was measured to confirm the suction performance.

  In Example 1, the same hole pattern was used three times at random, and the hole 11 was formed in the non-stick member 5 and sucked with a micro suction tube having a diameter D2 of 1.0 mm. That is, in this Example 1, since the distance between the opening portions 11 in the opening pattern> the diameter D2 of the micro suction tube, the hole was formed three times with the same opening pattern. Due to the opening process, the distance X, Y between the apertures 11 was smaller than the diameter D2 of the suction pipe at almost all locations in the non-stick member 5.

  In Example 2, the hole pattern was used once, and the hole 11 was formed in the non-sticking member 5, and suction was performed with a micro suction tube having a diameter D1 of 2.0 mm. That is, in Example 2, since the distance between the apertures 11 in the aperture pattern was smaller than the diameter D1 of the suction tube, the apertures 11 in the non-sticking member 5 can be formed only by one drilling process. The distance X, Y <the diameter D1 of the suction tube.

  In Comparative Example 1, the hole pattern was used once, and the hole 11 was formed in the non-stick member 5 and sucked with a micro suction tube having a diameter D2 of 1.0 mm. That is, in Comparative Example 1, the distances X and Y between the opening portions 11 of the non-sticking member 5 were greater than the diameter D2 of the suction pipe.

  In Comparative Example 2, the same hole pattern was used twice at random, and the hole 11 was formed in the non-stick member 5 and sucked with a micro suction tube having a diameter D2 of 1.0 mm. It is. That is, in this comparative example 2, since the distance between the apertures 11 in the aperture pattern> the diameter D2 of the suction tube, the drilling process was performed twice with the same aperture pattern, and partially non-adhesive The distances X and Y between the apertures 11 of the member 5 were greater than the suction pipe diameter D2.

  Table 1 shows the results of the suction tests of Example 1, Example 2, Comparative Example 1 and Comparative Example 2.

  In Example 1, since the distances X and Y between the opening portions 11 were less than the diameter D2 of the suction tube at almost all points in the non-sticking member 5, the physiological saline could not be sucked by only two specimens. All other specimens were able to aspirate physiological saline. At this level, even if suction cannot be performed, suction can be performed by slightly shifting the position of the suction tube during surgery.

  In Example 2, since the distances X and Y between the opening portions 11 in the non-sticking member 5 were smaller than the diameter D1 of the suction tube, the physiological saline could be sucked in all the specimens.

  In Comparative Example 1, since the distance X, Y between the apertures 11 in the non-adhesive member 5 was greater than the diameter D2 of the suction tube, the suction tube was applied to the non-adhesive member 5 so as to overlap the aperture 11. When contacted, the physiological saline could be sucked, but when the suction tube was brought into contact between the apertures 11 of the non-fixing member 5, the physiological saline could not be sucked. For this reason, 27 of the 50 samples could not be aspirated.

  In Comparative Example 2, since the distances X and Y between the apertures 11 of the non-sticking member 5 were partially equal to the diameter D2 of the suction tube, the number of incapable suction was smaller than that in Comparative Example 1, but 50 samples 15 of the samples were inhalable.

  Next, the length L in the width direction of the X-ray contrast member 6 after welding due to the difference in the arrangement of the absorbent member 4 and the X-ray contrast yarn 7 with respect to the welding apparatus at the time of welding was measured.

The absorbent member 4 is a cot ace (registered trademark) manufactured by Unitika Co., Ltd. having a weight of 60 g / m ² , and the non-adhesive member 5 is a finely-opened polyurethane film. The absorbent sheet main body 2 having a length in the width direction of 30 mm was formed.

  Further, as the X-ray contrast yarn 7, one having a diameter of 0.85 mm composed of about 50% barium sulfate, about 50% polystyrene and a small amount of carbon black was used.

  Moreover, as a welding apparatus provided with the press part 8 which does not have a heat source, and the press receiving part 9 which has a heat source, the impulse sealer (Fuji Impulse Corporation make, model OPL-450-5) was used.

  In this welding test, the absorbent sheet main body 2 is disposed between the press portion 8 and the press receiving portion 9 so that the longitudinal direction of the absorbent sheet main body 2 is along the impulse sealer. The long X-ray contrast yarn 7 having an arbitrary length was arranged linearly along the longitudinal direction of the absorbent sheet main body 2 so as to be slightly tensioned so as not to be stretched.

  Then, after heat welding at 210 ° C. for 4 seconds with an impulse sealer, the length L in the width direction of the X-ray contrast member 6 was measured. In addition, the welding test was performed with 6 specimens by such a method.

  In the embodiment, as shown in FIG. 3, the absorbent sheet main body 2 is disposed so that the absorbent member 4 faces the press portion 8 and the non-stick member 5 faces the press receiving portion 9, and X-ray contrast The X-ray contrast yarn 7 was disposed between the absorbent member 4 and the press portion 8 so that the yarn 7 was positioned closer to the press portion 8 than the absorbent member 4 and heat-welded.

  In the comparative example, the absorbent sheet main body 2 is disposed so that the non-sticking member 5 faces the press portion 8 and the absorbent member 4 faces the press receiving portion 9, and the X-ray contrast yarn 7 is the absorbent member 4. The X-ray contrast yarn 7 was disposed between the absorbent member 4 and the press receiving portion 9 so as to be positioned closer to the press receiving portion 9 and thermally welded.

  Table 2 shows the length L in the width direction of the X-ray contrast member 6 after heat welding in these examples and comparative examples.

  As shown in Table 2, the average length L in the width direction of the X-ray contrast member 6 in the example was 2.45 mm, whereas the length in the width direction of the X-ray contrast member 6 in the comparative example. The average of L was 3.00 mm.

  Therefore, the length L in the width direction of the X-ray contrast member 6 after welding was shorter in the example than in the comparative example. In other words, the X-ray contrast member 6 is thicker in the embodiment.

DESCRIPTION OF SYMBOLS 1 Absorption sheet for surgery 2 Absorption sheet main body 3 String member 4 Absorbent member 5 Non-adhesive member 6 X-ray contrast member 7 X-ray contrast yarn 8 Press part 9 Press receiving part
11 Opening

Claims (5)

A surgical absorbent sheet comprising an absorbent sheet main body and a string-like string member attached so as to be pulled out from an end of the absorbent sheet main body,
The absorbent sheet main body is located on one surface and has an absorbent property, the non-adhesive member located on the other surface and disposed integrally with the absorbent member, and the absorbent member A welded X-ray contrast member ;
This non-adhesive member is formed of a film-like resin sheet that has not been surface-treated ,
The X-ray contrast member is disposed so as to intersect the string member in the vicinity of the end of the absorption sheet main body from which the string member is pulled out,
The surgical absorbent sheet , wherein the string member is attached to the absorbent sheet main body in a loop shape across the X-ray contrast member . The X-ray contrast member has a color different from that of the absorptive member and is visible from the absorptive member side in the absorbent sheet body.
The absorbent sheet for surgery according to claim 1, wherein: The non-sticking member has a plurality of apertures,
The diameter of these openings is 0.1 mm or more and 0.5 mm or less,
The distance between the plurality of openings is Ru der least 2.0mm or less 1.0mm
Surgical absorbing sheet according to claim 1, wherein the this. A method for manufacturing the surgical absorbent sheet according to any one of claims 1 to 3,
The X-ray contrast member is a welding apparatus including a press portion having no heat source and a press receiving portion having a heat source. With the X-ray contrast yarn being disposed on the press portion side from the absorbent member, manufacturing method of the absorbent sheet for surgery you and forming by welding the X-ray opaque filament in the absorbent member. 4. surgical absorbent sheet manufacturing method according to and forming a plurality of apertures of the same aperture pattern in the non-sticking member by using a plurality of times at predetermined intervals.

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