WO2017099039A1 - Surgical pad material - Google Patents

Surgical pad material Download PDF

Info

Publication number
WO2017099039A1
WO2017099039A1 PCT/JP2016/086087 JP2016086087W WO2017099039A1 WO 2017099039 A1 WO2017099039 A1 WO 2017099039A1 JP 2016086087 W JP2016086087 W JP 2016086087W WO 2017099039 A1 WO2017099039 A1 WO 2017099039A1
Authority
WO
WIPO (PCT)
Prior art keywords
thread
ray contrast
pad material
sewing
surgical
Prior art date
Application number
PCT/JP2016/086087
Other languages
French (fr)
Japanese (ja)
Inventor
慎太郎 片岡
平原　武彦
Original Assignee
東レ・ファインケミカル株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東レ・ファインケミカル株式会社 filed Critical 東レ・ファインケミカル株式会社
Priority to JP2017555057A priority Critical patent/JP6632635B2/en
Publication of WO2017099039A1 publication Critical patent/WO2017099039A1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/36—Surgical swabs, e.g. for absorbency or packing body cavities during surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/44—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with radio-opaque material or signalling means for residual material

Definitions

  • the present invention relates to a surgical pad material used in surgery, and more particularly to a surgical pad material in which an X-ray contrast yarn is disposed.
  • surgical pad materials are used for the purpose of protecting and isolating body tissues and for absorbing blood or body fluids and keeping the surgical field clear.
  • articles such as gauze, non-woven fabric, and sponge are used. Although these articles are removed from the body at the end of the surgery, blood or the like is absorbed during the surgery, and it is difficult to visually distinguish the tissue from the body tissue, which may remain in the body. For this reason, an article in which an X-ray contrast thread is sewn or thermally welded to these articles has been proposed (see, for example, Patent Documents 1 and 2). In this way, by using an article provided with an X-ray contrast thread, it is possible to take a technique of confirming the presence or absence of residual in the body by X-raying the surgical site at the end of the operation.
  • the X-ray contrast thread is generally low in strength, if the end portion of the X-ray contrast thread is exposed, there is a possibility that the X-ray contrast thread is damaged during surgery and remains in the body. In addition, it may be damaged by contact with organs.
  • an object of the present invention is to provide a surgical pad material that prevents the drop of the X-ray contrast thread and the contact of the end of the X-ray contrast thread with the organ and improves the safety.
  • the surgical pad material of the present invention includes a pad material body and an X-ray contrast yarn, and the X-ray contrast yarn is fixed to the surface of the pad material body by a fixing thread.
  • the fixing thread is stitched to the pad material body by zigzag stitching, and the feed amount of the zigzag stitching is 0.25 mm or more and 0.75 mm in the sewing start area and the sewing end area of the fixing thread.
  • the X-ray contrast yarn is disposed inside the staggered stitches.
  • the surgical pad material is a surgical extrudate composed of a liquid-swellable material, and includes a pad material body formed by dry-compressing the liquid-swellable material and an X-ray contrast yarn. It is preferable.
  • the X-ray contrast yarn preferably has an elongation in the range of 30 to 900%.
  • the fixing thread is preferably a surgical suture.
  • the pad material body is preferably a cellulose sponge.
  • FIG. 1 is a perspective view showing an example of an exclusion body that is an embodiment of the surgical pad material of the present invention.
  • Drawing 2 is a mimetic diagram showing an example of the manufacturing method of the exclusion body which is one embodiment of the operation pad material of the present invention.
  • the surgical pad material may be a fabric such as gauze and non-woven fabric, and can also be used to prevent absorption of bodily fluids and blood at the time of surgery and drying of organs.
  • the drawings referred to below are schematically described, and the ratio of the dimensions of objects drawn in the drawings may be different from the ratio of dimensions of actual objects. The dimensional ratio of the object may be different between the drawings.
  • FIG. 1 is a perspective view of an exclusion body 10 according to an embodiment of the surgical pad material of the present invention.
  • This exclusion body 10 is a surgical exclusion body that can be suitably used in endoscopic surgery or the like, and is composed of a liquid-swellable material such as a sponge.
  • the exclusion body 10 includes an exclusion body body (pad material body) 1 formed by drying and compressing the liquid-swellable material and an X-ray contrast thread 2, and the X-ray contrast thread 2 is a fixed thread 3. It is being fixed to the surface of the exclusion body 1 by.
  • the fixing thread 3 is sewn to the exclusion body 1 by zigzag stitching, and the X-ray contrast thread 2 is arranged inside the stitches of the zigzag stitching.
  • Staggered stitching is a method of sewing in a zigzag manner.
  • liquid-swellable material is not compressed after drying, and the X-ray contrast thread is staggered with a fixed thread, or the X-ray contrast thread is staggered with a fixed thread in a wet state before drying. It can also be dried.
  • FIG. 2 shows an example of a method for producing an exclusion body that is an embodiment of the surgical pad material of the present invention.
  • the exclusion body 1 is prepared (FIG. 2A), and the X-ray contrast thread 2 is placed on the surface of the exclusion body 1 (FIG. 2B).
  • a staggered stitch is applied to the exclusion body 1 with the fixing thread 3 from above the X-ray contrast thread 2 (FIG. 2C).
  • the X-ray contrast thread 2 is pressed (wrapped) by the zigzag portion of the staggered stitches of the fixing thread 3 so that the needle does not pierce the X-ray contrast thread 2.
  • the X-ray contrast thread 2 coming out of the zigzag stitch is cut at the time of sewing, and the X-ray contrast thread 2 is arranged inside the staggered stitch.
  • FIG. 2C the X-ray contrast thread 2 coming out of the staggered stitch is cut at the time of sewing in this stretched state
  • FIG. 2 the end portion of the X-ray contrast thread 2 enters the zigzag stitch and the protrusion does not occur or the protrusion length becomes short, which is preferable.
  • the X-ray contrast thread 2 has an elongation in the range of 30 to 900%.
  • test pieces having a length of 200 mm are prepared, and using a Tensilon universal testing machine, a tensile test is performed at a distance between chucks of 50 mm and a tensile speed of 300 mm / min. It is the value measured and averaged.
  • a synthetic fiber containing a radiopaque component as a contrast agent can be used.
  • the contrast agent for example, barium sulfate can be used.
  • the synthetic resin that forms the synthetic fiber include polyethylene, polyvinyl chloride, polypropylene, polyester, and styrene elastomer.
  • the X-ray contrast yarn 2 may be a monofilament or a multifilament. In the present invention, for example, when a monofilament contrast yarn of a styrene elastomer is used as the X-ray contrast yarn 2, the X-ray contrast yarn 2 is stretchable. Therefore, it is preferable.
  • a multifilament X-ray contrast yarn is composed of a resin contrast yarn and a covering yarn, and the stretchability tends to be smaller than that of a monofilament contrast yarn.
  • the fixing thread 3 is preferably a surgical suture.
  • a thread used for sewing is attached with an oil agent in order to improve the sliding of the thread, which is not preferable for use in medical applications.
  • the surgical suture is assumed to be used in the body, it can be suitably used as a member of the exclusion body 10.
  • the structure of the surgical suture include a monofilament suture, a twist suture (twisted yarn), and a blade (knitting yarn) suture.
  • a blade suture can be preferably used because it is soft and easy to handle. .
  • the fixing thread 3 is sewn to the exclusion body 1 by zigzag stitching.
  • the needle swing width is in the range of 1.5 to 2.5 mm, for example, and the feed amount (pitch) is in the range of 0.25 mm to 1.5 mm. If the feed amount is too small (the seam is too fine), the cellulose sponge may be damaged by the needle hole of the seam depending on the thickness of the needle or thread. On the other hand, if the feed amount is too large, a large amount of X-ray contrast thread is exposed on the surface, so that the exposed X-ray contrast thread may be caught by a surgical instrument such as forceps during the operation. Therefore, the feed amount is preferably within the above range.
  • the thread tension at the time of zigzag stitching is 1.8 N or less.
  • the upper thread tension and lower thread tension can be set individually, the upper thread tension is preferably within the range of 0.3 to 1.8 N.
  • the tone is preferably 0.3 N or less.
  • the feed amount in the sewing start area 5A and the sewing end area 5B is preferably 0.30 mm or more and 0.50 mm or less.
  • the area for adjusting the feed amount is preferably 15 mm or less from the sewing start position 4A and the sewing end position 4B, and more preferably 3 mm or more and 10 mm or less. preferable.
  • the feed amount in the region for adjusting the feed amount is not necessarily smaller than the feed amounts in the other regions as long as it is within the above range.
  • the feed amount of the sewing start area 5A and the sewing end area 5B may be the same as the feed amount of the other part, or may be larger than the feed amount of the other part. .
  • the X-ray contrast thread 2 is fixed to the surface of the exclusion body 1 by the fixing thread 3.
  • the X-ray contrast thread 2 can move with respect to the exclusion body 1. it can. Therefore, when the exclusion body 1 is expanded by liquid absorption, the shape is not easily distorted or twitched.
  • the X-ray contrast yarn 2 is preferable because it is not easily bent and not easily cut as in the case of heat-sealing.
  • the liquid-swellable material forming the retraction body 1 is a cellulose porous body such as cellulose sponge, polyvinyl alcohol sponge, urethane sponge, or gauze.
  • cellulose is excellent in terms of safety to living bodies.
  • Cellulose sponge is a material that can be dry-compressed, and if moisture is applied to this dry-compressed cellulose sponge, it absorbs water and expands. Therefore, cellulose sponge is also a preferable material.
  • a cellulose sponge produced by a conventional production process such as a regenerated cellulose method or a cellulose solvent solution method can be used as it is.
  • a cellulose sponge produced by a conventional production process such as a regenerated cellulose method or a cellulose solvent solution method
  • the disclosed cellulose sponge is mentioned.
  • viscose with natural fibers added is produced from dissolved pulp mainly composed of cellulose.
  • Neutral crystal mirabilite is added to the viscose and mixed to prepare a mixture.
  • the mixture can be pushed into a mold or discharged into a sheet and heated and solidified to obtain a block-like or sheet-like cellulose sponge.
  • the cellulose sponge preferably contains cotton, flax, ramie, and pulp alone or in combination as reinforcing fibers. By including these reinforcing fibers, the strength of the sponge is increased and lint is suppressed. In addition, it is possible to suppress damage and dropout of the retraction body when it is removed from the trocar after
  • Toray cellulose sponge (trade name, manufactured by Toray Fine Chemical Co., Ltd.) can be used.
  • the cellulose sponge raw material is, for example, in a block shape, and can be cut or punched to form a cellulose sponge used as a liquid-swellable material in the present invention.
  • Cellulose sponges are water-absorbing, so there is no need for special post-processing to give water-absorbing performance, risk management for increased post-processing steps and safety of drugs used in post-processing. It is possible to suppress the increase in cost associated with.
  • the cellulose sponge is characterized in that the occurrence of lint is small, the handleability at the time of surgery is excellent, and the adhesion to the incised tissue is extremely small, so that it can be easily collected at the end of the surgery.
  • the tensile strength may be reduced in one direction among the directions orthogonal to this in the manufacturing process.
  • this direction is the Y-axis direction
  • the direction perpendicular to the Z-axis direction and the Y-axis direction is the X-axis direction
  • the sheet is resistant to tension when the Y-axis direction is the thickness.
  • Tensile strength measurements of the block-shaped cellulose sponge e.g., X-axis direction 9 ⁇ 17N / cm 2, Y-axis direction 4 ⁇ 9N / cm 2, Z-axis direction is 9 ⁇ 18N / cm 2.
  • test pieces of 7 cm ⁇ 2 cm ⁇ 1 cm are prepared for tensile strength, and a tensile test is performed by using a Tensilon universal tester with the above-mentioned 5 cm direction as the axial direction for pulling at a distance between chucks of 5 cm.
  • the strength (N / cm 2 ) is measured and averaged.
  • the exclusion body 10 prevents the surgical instrument from coming into contact with an organ near the target organ and protects the organ near the target organ. It is also possible to lift and remove the organs near the target organ.
  • the X-ray contrast yarn 2 may be disposed anywhere in the exclusion body 10 as long as a contrast effect is obtained, but it is preferable to dispose the X-ray contrast thread 2 in a portion with little contact with an organ.
  • the X-ray contrast yarn 2 is shown as being provided, but the present invention is not limited to this, and a plurality of X-ray contrast yarns 2 can be provided.
  • the arrangement position when a plurality of X-ray contrast threads 2 are provided may be any position as long as a contrast effect can be obtained, but may be arranged at positions near both sides in the longitudinal direction or the lateral direction of the exclusion body 10. More preferred.
  • Example 1 A block-like cellulose sponge was prepared. Specifically, viscose obtained by adding natural fibers from dissolved pulp containing cellulose as a main component was prepared, and neutral crystal sodium sulfate was added to and mixed with the viscose to prepare a mixture. The mixture was pushed into a mold and solidified by heating to obtain a block cellulose sponge. The obtained block-like cellulose sponge is cut into slices and punched to produce a sheet-like cellulose sponge of 110 mm (short direction) ⁇ 150 mm (longitudinal direction) ⁇ 0.6 mm (thickness direction) and dried. To obtain a dry cellulose sponge. The obtained dry cellulose sponge was compressed into a pad material (extruded body) body.
  • the longitudinal direction of the dry cellulose sponge was defined as the sewing direction of the sewing machine, and the vicinity of both ends in the short direction was defined as the sewing start position and the sewing end position. Then, a styrene monofilament X-ray contrast yarn (manufactured by Vertec, fiber diameter: 0.45 mm) was placed 7 mm inside from both sides in the longitudinal direction of the dry cellulose sponge. With the sewing start position and sewing end position 5 mm inward from the short direction, with an industrial sewing machine (JUKI LZ2284NA-7), the needle swing width is 1.5 mm, the feed amount (pitch) is 0.5 mm, and the thread tension is 0.
  • JUKI LZ2284NA-7 industrial sewing machine
  • the X-ray contrast thread from the zigzag stitch was stretched.
  • the cut end portion of the X-ray contrast yarn is arranged inside the zigzag stitch, and the X-ray contrast yarn from the zigzag stitching is It was visually confirmed that the protrusion was 1 mm or less.
  • an X-ray contrast thread was fixed on the surface, and an exclusion body was obtained in which the X-ray contrast thread was disposed inside the staggered stitches.
  • the elongation of the X-ray contrast yarn used in this example was 710%.
  • the obtained surgical pad material swelled when the water was absorbed, so that the protruding portion of the X-ray contrast thread of 1 mm or less was embedded, and even if it touched the end part of the X-ray contrast thread, it did not feel a catch. . That is, it can be said that a surgical pad material with improved safety capable of preventing contact of the X-ray contrast yarn end portion with the organ during the operation was obtained.
  • Example 2 At the time of staggered stitching, the feed amount (pitch) of the industrial sewing machine is changed to 0.25 mm, and the feed amount in the sewing start region and the sewing end region is changed to 0.5 mm. An extrudate was prepared by this method. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
  • Example 3 At the time of staggered stitching, the feed rate (pitch) of the industrial sewing machine was changed to 1.25 mm, and the feed rate in the sewing start area and the sewing end area was changed to 0.5 mm, as in Example 1. An extrudate was prepared by this method. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
  • Example 4 Extruders were produced in the same manner as in Example 1 except that the thread tension of the industrial sewing machine was changed to 0.8 N during zigzag stitching. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
  • Example 5 Example 1 except that the fixing thread was changed to silk (non-sterilized silk stitching mixed thread braid silk thread thickness 4-0) and the sewing machine thread tone of the industrial sewing machine to 1.0 N at the time of zigzag stitching. An extrudate was prepared in the same manner. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
  • Example 6 An extrudate was prepared in the same manner as in Example 1 except that polypropylene multifilament X-ray contrast yarn (Micropake manufactured by Specialty Fibers and Materials) was used as the X-ray contrast yarn.
  • polypropylene multifilament X-ray contrast yarn Micropake manufactured by Specialty Fibers and Materials
  • the X-ray contrast thread from the zigzag stitch was stretched at the sewing start position and sewing end position of the above exclusion body.
  • the X-ray contrast yarn was cut at the time of the zigzag stitch, and it was visually confirmed that the cut end portion of the X-ray contrast yarn was disposed inside the zigzag stitch.
  • the X-ray contrast yarn used in this example has an elongation of 30%, which is smaller than that of the X-ray contrast yarn used in Example 1, and it is necessary to cut at a position closer to the sewing. It was.
  • the X-ray contrast thread is fixed to the surface, and the X-ray contrast thread is disposed inside the staggered stitches, and the extruding body in which the protrusion of the contrast thread from the staggered stitches is 1 mm or less is provided. Obtained.
  • Example 7 As the X-ray contrast yarn, a styrene monofilament X-ray contrast yarn (manufactured by Vertec, fiber diameter 0.65 mm) is used. The needle swing width is 2.3 mm, the feed amount (pitch) is 0.5 mm, and the upper thread is in tension. The thread tension of 0.4N and lower thread was 0.09N. The feed amount of 10 mm (sewing start area) from the sewing start position and 10 mm (sewing end area) to the sewing end position was set to 0.5 mm. Other conditions were the same as in Example 1 to produce an extrudate.
  • the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was. In this way, an X-ray contrast thread was fixed on the surface, and an exclusion body was obtained in which the X-ray contrast thread was disposed inside the staggered stitches. In addition, the elongation of the X-ray contrast yarn used in this example was 560%.
  • Example 8 Extruders were produced in the same manner as in Example 7 except that the thread tension of the upper thread of the industrial sewing machine was changed to 1.6 N during zigzag stitching. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
  • Example 9 Example 7 except that the feed amount of 10 mm (sewing start area) from the sewing start position and 10 mm (sewing end area) from the sewing start position to 0.25 mm was changed to 0.25 mm at the staggered stitching. An extrudate was prepared in the same manner. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
  • Example 10 Example 7 except that the feed amount of 10 mm (sewing start area) from the sewing start position and 10 mm (sewing end area) to the sewing end position was changed to 0.375 mm during staggered stitching. An extrudate was prepared in the same manner. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
  • Example 11 In the zigzag stitching, the feed rate (pitch) of the industrial sewing machine was changed to 0.375 mm, and the feed rate in the sewing start area and the sewing end area was changed to 0.5 mm. An extrudate was prepared by this method. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
  • Example 12 Extruders were produced in the same manner as in Example 10 except that the stitch swing width was changed to 2.5 mm and the thread tension of the upper thread was changed to 0.9 N during zigzag stitching. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
  • Example 1 A dry cellulose sponge produced by the same method as in Example 1 was used as the pad material (extruded body) body.
  • the longitudinal direction of the dry cellulose sponge was defined as the sewing direction of the sewing machine, and the vicinity of both ends in the short direction was defined as the sewing start position and the sewing end position. Then, the sewing start position and the sewing end position are set to 5 mm inside from the short side of the dry cellulose sponge, and the line 7 mm inside from both sides in the longitudinal direction is X-ray contrasted with a household sewing machine (Macross Tiny Sewing Machine). Sewing was performed using a thread.
  • a household sewing machine Mocross Tiny Sewing Machine
  • the thread tension is 1.3N
  • the upper thread is a surgical suture (non-sterilized Bayolax polyester braided suture sold by Matsuda Medical Industry, the thickness is 4-0)
  • the lower thread is a styrene monofilament X
  • a line contrast yarn manufactured by Vertec, fiber diameter 0.65 mm
  • Comparative Example 2 An extrudate of cellulose sponge in which the X-ray contrast yarn was sewn in the same manner as in Comparative Example 1 was prepared except that the lower thread was a polypropylene multifilament X-ray contrast yarn (Micropake manufactured by Specialty Fibers and Materials). Also in this comparative example, it was visually confirmed that the cut portion of the X-ray contrast yarn was exposed from the dry cellulose sponge.
  • Example 3 Comparative Example 3
  • Example 7 except that the feed amount of 10 mm (sewing start area) from the sewing start position and 10 mm (sewing end area) from the sewing start position to 0.75 mm was changed to 0.75 mm during the staggered stitching.
  • An extrudate was prepared in the same manner.
  • the protrusion of the contrast thread from the initial staggered stitch was 1 mm or less, but the sewing pitch in the sewing start area and the sewing end area was large, and X There is a possibility that the end of the line contrast thread may protrude from the inside of the staggered seam.
  • the present invention has been described with the extruding body as a specific example of the embodiment.
  • the surgical pad material of the present invention is not limited to those described in these specific examples, and various Embodiments are possible.
  • Extruder (Surgery pad material) 1 Extruder body (pad body, liquid-swellable material) 2 Contrast thread 3 Fixed thread 4A Sewing start position 4B Sewing end position 5A Sewing start area 5B Sewing end area

Abstract

Provided is a surgical pad material that prevents an X-ray contrast thread from falling out and has an improved safety. The surgical pad material is provided with: a pad material body (1); and an X-ray contrast thread (2), and is characterized in that: the X-ray contrast thread (2) is fixed to a surface of the pad material body (1) by a fixing thread (3); the fixing thread (3) is sewn onto the pad material body (1) by a zig-zag stitch; in a sewing start region (5A) and a sewing end region (5B) of the fixing thread (3), a feed amount of the zig-zag stitch is in the range of 0.25 mm or more to 0.75 mm or less; and the X-ray contrast thread (2) is arranged on an inner side of a seam of the zig-zag stitch.

Description

手術用パッド材Surgical pad material
　本発明は、手術において使用される手術用パッド材に関し、特に、Ｘ線造影糸が配設されている手術用パッド材に関する。 The present invention relates to a surgical pad material used in surgery, and more particularly to a surgical pad material in which an X-ray contrast yarn is disposed.
　外科手術の際には、体内組織の保護や隔離を目的として、また、血液あるいは体液等を吸収し、術野をクリアに保つことを目的として、手術用パッド材が用いられている。手術用パッド材としては、ガーゼ、不織布およびスポンジ等の物品が用いられている。これらの物品は、手術終了時には体内から取り除かれるが、手術中に血液等を吸収して目視では体内組織との区別が困難となってしまうため、体内に残留されてしまう恐れがある。そのため、これらの物品にＸ線造影糸を縫着や熱溶着したものが提案されている（例えば、特許文献１、２参照）。このように、Ｘ線造影糸を配設した物品を用いることで、手術終了時に手術部位をＸ線撮影することにより、体内残留の有無を確認するという手法を採ることができる。 During surgical operations, surgical pad materials are used for the purpose of protecting and isolating body tissues and for absorbing blood or body fluids and keeping the surgical field clear. As the surgical pad material, articles such as gauze, non-woven fabric, and sponge are used. Although these articles are removed from the body at the end of the surgery, blood or the like is absorbed during the surgery, and it is difficult to visually distinguish the tissue from the body tissue, which may remain in the body. For this reason, an article in which an X-ray contrast thread is sewn or thermally welded to these articles has been proposed (see, for example, Patent Documents 1 and 2). In this way, by using an article provided with an X-ray contrast thread, it is possible to take a technique of confirming the presence or absence of residual in the body by X-raying the surgical site at the end of the operation.
特許第４２５３６５６号公報Japanese Patent No. 4253656 特開２０１３－４３０６６号公報JP 2013-43066 A
　ところで、Ｘ線造影糸は、一般には低強度のため、Ｘ線造影糸の端部が露出していると、手術時に破損して体内に残ってしまう可能性がある。また、臓器に接触して傷つけ出血を起こす可能性もある。 By the way, since the X-ray contrast thread is generally low in strength, if the end portion of the X-ray contrast thread is exposed, there is a possibility that the X-ray contrast thread is damaged during surgery and remains in the body. In addition, it may be damaged by contact with organs.
　そこで、本発明は、Ｘ線造影糸の脱落やＸ線造影糸端部の臓器への接触を防ぎ、安全性を向上させた手術用パッド材を提供することを目的とする。 Therefore, an object of the present invention is to provide a surgical pad material that prevents the drop of the X-ray contrast thread and the contact of the end of the X-ray contrast thread with the organ and improves the safety.
　前記目的を達成するために、本発明の手術用パッド材は、パッド材本体とＸ線造影糸とを含み、前記Ｘ線造影糸は、固定糸によって前記パッド材本体の表面に固定されており、前記固定糸は、千鳥縫いで前記パッド材本体に縫着されており、前記固定糸の縫着開始領域および縫着終了領域において、前記千鳥縫いの送り量は、０．２５ｍｍ以上０．７５ｍｍ未満の範囲内にあり、前記Ｘ線造影糸は、前記千鳥縫いの縫い目の内側に配設されていることを特徴とする。 To achieve the above object, the surgical pad material of the present invention includes a pad material body and an X-ray contrast yarn, and the X-ray contrast yarn is fixed to the surface of the pad material body by a fixing thread. The fixing thread is stitched to the pad material body by zigzag stitching, and the feed amount of the zigzag stitching is 0.25 mm or more and 0.75 mm in the sewing start area and the sewing end area of the fixing thread. And the X-ray contrast yarn is disposed inside the staggered stitches.
　前記手術用パッド材は、吸液膨張性材料で構成された手術用の圧排体であり、前記吸液膨張性材料を乾燥圧縮することによって形成されたパッド材本体とＸ線造影糸とを含むことが好ましい。 The surgical pad material is a surgical extrudate composed of a liquid-swellable material, and includes a pad material body formed by dry-compressing the liquid-swellable material and an X-ray contrast yarn. It is preferable.
　前記Ｘ線造影糸は、伸度が３０～９００％の範囲内にあることが好ましい。 The X-ray contrast yarn preferably has an elongation in the range of 30 to 900%.
　また、前記固定糸は、手術用縫合糸であることが好ましい。 Further, the fixing thread is preferably a surgical suture.
　本発明において、前記パッド材本体は、セルローススポンジであることが好ましい。 In the present invention, the pad material body is preferably a cellulose sponge.
　本発明によれば、Ｘ線造影糸の脱落を防ぎ、安全性を向上させた手術用パッド材を提供することができる。 According to the present invention, it is possible to provide a surgical pad material that prevents the X-ray contrast yarn from falling off and improves safety.
図１は、本発明の手術用パッド材の一実施形態である圧排体の一例を示す斜視図である。FIG. 1 is a perspective view showing an example of an exclusion body that is an embodiment of the surgical pad material of the present invention. 図２は、本発明の手術用パッド材の一実施形態である圧排体の製造方法の一例を示す模式図である。 Drawing 2 is a mimetic diagram showing an example of the manufacturing method of the exclusion body which is one embodiment of the operation pad material of the present invention.
　本発明の手術用パッド材の一実施形態である圧排体について、例をあげて説明する。ただし、本発明は、以下の圧排体の例に限定および制限されない。例えば、手術用パッド材は、ガーゼおよび不織布等の布帛であってもよく、手術時の体液や血液の吸収、臓器の乾燥を防ぐことにも使用できる。なお、以下で参照する図面は、模式的に記載されたものであり、図面に描画された物体の寸法の比率などは、現実の物体の寸法の比率などとは異なる場合がある。図面相互間においても、物体の寸法比率等が異なる場合がある。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An extruding body that is an embodiment of the surgical pad material of the present invention will be described with an example. However, the present invention is not limited or restricted to the following examples of the exclusion body. For example, the surgical pad material may be a fabric such as gauze and non-woven fabric, and can also be used to prevent absorption of bodily fluids and blood at the time of surgery and drying of organs. The drawings referred to below are schematically described, and the ratio of the dimensions of objects drawn in the drawings may be different from the ratio of dimensions of actual objects. The dimensional ratio of the object may be different between the drawings.
　図１に、本発明の手術用パッド材の一実施形態に係る圧排体１０の斜視図を示す。この圧排体１０は、内視鏡手術等において好適に使用できる手術用の圧排体であり、スポンジ等の吸液膨張性材料で構成されている。圧排体１０は、前記吸液膨張性材料を乾燥圧縮することによって形成された圧排体本体（パッド材本体）１とＸ線造影糸２とを含んでおり、Ｘ線造影糸２は固定糸３によって圧排体本体１の表面に固定されている。そして、固定糸３は、千鳥縫いで圧排体本体１に縫着されており、Ｘ線造影糸２は、前記千鳥縫いの縫い目の内側に配設されている。千鳥縫いとは、連続してジグザグに縫う縫い方である。 FIG. 1 is a perspective view of an exclusion body 10 according to an embodiment of the surgical pad material of the present invention. This exclusion body 10 is a surgical exclusion body that can be suitably used in endoscopic surgery or the like, and is composed of a liquid-swellable material such as a sponge. The exclusion body 10 includes an exclusion body body (pad material body) 1 formed by drying and compressing the liquid-swellable material and an X-ray contrast thread 2, and the X-ray contrast thread 2 is a fixed thread 3. It is being fixed to the surface of the exclusion body 1 by. The fixing thread 3 is sewn to the exclusion body 1 by zigzag stitching, and the X-ray contrast thread 2 is arranged inside the stitches of the zigzag stitching. Staggered stitching is a method of sewing in a zigzag manner.
　なお、前記吸液膨張性材料は乾燥後に圧縮しない状態でＸ線造影糸を固定糸で千鳥縫い縫着することや、乾燥前の湿潤状態でＸ線造影糸を固定糸で千鳥縫い縫着して、乾燥することもできる。 Note that the liquid-swellable material is not compressed after drying, and the X-ray contrast thread is staggered with a fixed thread, or the X-ray contrast thread is staggered with a fixed thread in a wet state before drying. It can also be dried.
　図２に、本発明の手術用パッド材の一実施形態である圧排体の製造方法の一例を示す。まず、圧排体本体１を用意し（図２（ａ））、圧排体本体１の表面にＸ線造影糸２を載置する（図２（ｂ））。そして、Ｘ線造影糸２の上から、固定糸３で圧排体本体１に千鳥縫いを施す（図２（ｃ））。このとき、Ｘ線造影糸２に針が刺さらないようにして、固定糸３による千鳥縫いの縫い目のジグザグ部分でＸ線造影糸２を押さえる（包み込む）状態とする。そして、千鳥縫いから出ているＸ線造影糸２を縫い際で切断して、前記千鳥縫いの縫い目の内側にＸ線造影糸２を配設した状態とする。このとき、Ｘ線造影糸２を引き伸ばし（図２（ｃ）中の矢印）、この引き伸ばした状態で、千鳥縫いから出ているＸ線造影糸２を縫い際で切断すると、図２（ｄ）に示すように千鳥縫いの内部にＸ線造影糸２の端部が入り込み、はみ出しがなくなる、または、はみ出し長さが短くなるため、好ましい。この場合、Ｘ線造影糸２は、伸度が３０～９００％の範囲内にあることが好ましく、引き伸ばして切断し、千鳥縫いの縫い目の内側に端部を入り込ませるには、５００～８００％の範囲内にあることが、より好ましい。このとき、伸度は、長さ２００ｍｍの試験片を５個以上用意し、テンシロン万能試験機を用いて、チャック間距離５０ｍｍ、引張速度３００ｍｍ／ｍｉｎで引張試験を行い、伸度（％）を測定して平均した値である。 FIG. 2 shows an example of a method for producing an exclusion body that is an embodiment of the surgical pad material of the present invention. First, the exclusion body 1 is prepared (FIG. 2A), and the X-ray contrast thread 2 is placed on the surface of the exclusion body 1 (FIG. 2B). Then, a staggered stitch is applied to the exclusion body 1 with the fixing thread 3 from above the X-ray contrast thread 2 (FIG. 2C). At this time, the X-ray contrast thread 2 is pressed (wrapped) by the zigzag portion of the staggered stitches of the fixing thread 3 so that the needle does not pierce the X-ray contrast thread 2. Then, the X-ray contrast thread 2 coming out of the zigzag stitch is cut at the time of sewing, and the X-ray contrast thread 2 is arranged inside the staggered stitch. At this time, when the X-ray contrast thread 2 is stretched (arrow in FIG. 2C) and the X-ray contrast thread 2 coming out of the staggered stitch is cut at the time of sewing in this stretched state, FIG. As shown in FIG. 2, the end portion of the X-ray contrast thread 2 enters the zigzag stitch and the protrusion does not occur or the protrusion length becomes short, which is preferable. In this case, it is preferable that the X-ray contrast thread 2 has an elongation in the range of 30 to 900%. In order to stretch and cut and to insert the end portion inside the zigzag stitch, 500 to 800% It is more preferable that it is in the range. At this time, as for the elongation, five or more test pieces having a length of 200 mm are prepared, and using a Tensilon universal testing machine, a tensile test is performed at a distance between chucks of 50 mm and a tensile speed of 300 mm / min. It is the value measured and averaged.
　Ｘ線造影糸２としては、造影剤としてＸ線非透過性の成分を含んだ合成繊維を用いることができる。前記造影剤としては、例えば硫酸バリウムを使用することができる。前記合成繊維を形成する合成樹脂としては、ポリエチレン、ポリ塩化ビニル、ポリプロピレン、ポリエステル、スチレン系エラストマー等があげられる。Ｘ線造影糸２は、モノフィラメントであってもマルチフィラメントであってもよいが、本発明においては、Ｘ線造影糸２として、例えば、スチレン系エラストマーのモノフィラメント造影糸を用いると、伸縮性があるため好ましい。一般的にマルチフィラメントのＸ線造影糸は、樹脂製の造影糸とカバーリング糸とから構成されており、伸縮性はモノフィラメント造影糸よりも小さい傾向にある。 As the X-ray contrast yarn 2, a synthetic fiber containing a radiopaque component as a contrast agent can be used. As the contrast agent, for example, barium sulfate can be used. Examples of the synthetic resin that forms the synthetic fiber include polyethylene, polyvinyl chloride, polypropylene, polyester, and styrene elastomer. The X-ray contrast yarn 2 may be a monofilament or a multifilament. In the present invention, for example, when a monofilament contrast yarn of a styrene elastomer is used as the X-ray contrast yarn 2, the X-ray contrast yarn 2 is stretchable. Therefore, it is preferable. In general, a multifilament X-ray contrast yarn is composed of a resin contrast yarn and a covering yarn, and the stretchability tends to be smaller than that of a monofilament contrast yarn.
　本発明において、固定糸３は、手術用縫合糸であることが好ましい。通常、例えばミシン縫いの際に使用する糸は、糸の滑りを良くする為に、油剤が付着しており、医療用途として用いるには好ましいとはいえない。前記手術用縫合糸は、体内において使用されることが前提となっているものであるため、圧排体１０の部材として好適に用いることができる。前記手術用縫合糸の構造としては、モノフィラメント縫合糸、ツイスト縫合糸（撚糸）、ブレイド（編糸）縫合糸があげられるが、柔らかく扱いやすいという点で、ブレイド縫合糸を好適に用いることができる。 In the present invention, the fixing thread 3 is preferably a surgical suture. Usually, for example, a thread used for sewing is attached with an oil agent in order to improve the sliding of the thread, which is not preferable for use in medical applications. Since the surgical suture is assumed to be used in the body, it can be suitably used as a member of the exclusion body 10. Examples of the structure of the surgical suture include a monofilament suture, a twist suture (twisted yarn), and a blade (knitting yarn) suture. However, a blade suture can be preferably used because it is soft and easy to handle. .
　固定糸３は、千鳥縫いで圧排体本体１に縫着される。前記千鳥縫いは、針振り幅を例えば１．５～２．５ｍｍの範囲内に、送り量（ピッチ）を０．２５ｍｍ以上１．５ｍｍ以下の範囲内にすることが好ましい。送り量が小さすぎる（縫い目が細かすぎる）と、針や糸の太さによっては、縫い目の針孔によってセルローススポンジが破損してしまうおそれがある。一方、送り量が大きすぎると、Ｘ線造影糸が表面に多く露出することになるため、露出した前記Ｘ線造影糸が手術中に鉗子等の手術器具に引っ掛かってしまうおそれがある。そのため、送り量は前記範囲内にあることが好ましい。また、千鳥縫いの際の糸調子は１．８Ｎ以下とすることが好ましい。上糸の糸調子と下糸の糸調子とを、それぞれ個別に設定可能である場合は、上糸の糸調子は０．３～１．８Ｎの範囲内にすることが好ましく、下糸の糸調子は０．３Ｎ以下とすることが好ましい。前記範囲内とすることによって、Ｘ線造影糸２の脱落を防ぐとともに、圧排体１０の固定糸３の縫着部分における剛直化も軽減することができる。また、固定糸３の縫着開始領域５Ａおよび縫着終了領域５Ｂにおいては、前記送り量を０．２５ｍｍ以上０．７５ｍｍ未満と小さくすることで、Ｘ線造影糸２の端部を千鳥縫いの縫い目の内側から出にくくすることができ、Ｘ線造影糸２端部の臓器への接触を防ぐことができる。前記縫着開始領域５Ａおよび前記縫着終了領域５Ｂにおける送り量は、０．３０ｍｍ以上０．５０ｍｍ以下であることが好ましい。 The fixing thread 3 is sewn to the exclusion body 1 by zigzag stitching. In the zigzag stitching, it is preferable that the needle swing width is in the range of 1.5 to 2.5 mm, for example, and the feed amount (pitch) is in the range of 0.25 mm to 1.5 mm. If the feed amount is too small (the seam is too fine), the cellulose sponge may be damaged by the needle hole of the seam depending on the thickness of the needle or thread. On the other hand, if the feed amount is too large, a large amount of X-ray contrast thread is exposed on the surface, so that the exposed X-ray contrast thread may be caught by a surgical instrument such as forceps during the operation. Therefore, the feed amount is preferably within the above range. Moreover, it is preferable that the thread tension at the time of zigzag stitching is 1.8 N or less. When the upper thread tension and lower thread tension can be set individually, the upper thread tension is preferably within the range of 0.3 to 1.8 N. The tone is preferably 0.3 N or less. By setting it within the above range, it is possible to prevent the X-ray contrast thread 2 from falling off and to reduce the rigidity of the sewn portion of the fixing thread 3 of the exclusion body 10. Further, in the sewing start area 5A and the sewing end area 5B of the fixed thread 3, the end of the X-ray contrast thread 2 is staggered by reducing the feed amount to 0.25 mm or more and less than 0.75 mm. It can be made difficult to come out from the inside of the seam, and contact of the X-ray contrast yarn 2 end with the organ can be prevented. The feed amount in the sewing start area 5A and the sewing end area 5B is preferably 0.30 mm or more and 0.50 mm or less.
　送り量を調整する領域（縫着開始領域５Ａおよび縫着終了領域５Ｂ）は、縫着開始位置４Ａおよび縫着終了位置４Ｂから１５ｍｍ以下であることが好ましく、３ｍｍ以上１０ｍｍ以下であることがより好ましい。なお、送り量を調整する領域における送り量は、前記範囲内であれば、必ずしもその他の領域の送り量よりも小さくする必要はない。例えば、縫着開始領域５Ａおよび縫着終了領域５Ｂの送り量が、他の部分の送り量と同じ送り量であってもよく、他の部分の送り量よりも大きい送り量となってもよい。 The area for adjusting the feed amount (sewing start area 5A and sewing end area 5B) is preferably 15 mm or less from the sewing start position 4A and the sewing end position 4B, and more preferably 3 mm or more and 10 mm or less. preferable. Note that the feed amount in the region for adjusting the feed amount is not necessarily smaller than the feed amounts in the other regions as long as it is within the above range. For example, the feed amount of the sewing start area 5A and the sewing end area 5B may be the same as the feed amount of the other part, or may be larger than the feed amount of the other part. .
　本発明においては、Ｘ線造影糸２は固定糸３によって圧排体本体１の表面に固定されているが、熱融着で固着された場合とは異なり、圧排体本体１に対して動くことができる。そのため、吸液によって圧排体本体１が膨張した際に、形状にゆがみや引き攣れを起こしにくい。また、Ｘ線造影糸２は、熱融着した場合のように折り曲げにくくならず、また、切れ易くもならないため、好ましい。 In the present invention, the X-ray contrast thread 2 is fixed to the surface of the exclusion body 1 by the fixing thread 3. However, unlike the case where the X-ray contrast thread 2 is fixed by thermal fusion, it can move with respect to the exclusion body 1. it can. Therefore, when the exclusion body 1 is expanded by liquid absorption, the shape is not easily distorted or twitched. Further, the X-ray contrast yarn 2 is preferable because it is not easily bent and not easily cut as in the case of heat-sealing.
　本発明において、圧排体本体１を形成する前記吸液膨張性材料は、セルローススポンジ等のセルロース多孔質体、ポリビニルアルコールスポンジ、ウレタンスポンジ、ガーゼであることが好ましい。特に、セルロースは生体に対する安全性の点で優れている。セルローススポンジは乾燥圧縮成型可能な素材であり、この乾燥圧縮されたセルローススポンジに水分を付与すれば吸水して膨張するので、この点からも好ましい材料である。 In the present invention, it is preferable that the liquid-swellable material forming the retraction body 1 is a cellulose porous body such as cellulose sponge, polyvinyl alcohol sponge, urethane sponge, or gauze. In particular, cellulose is excellent in terms of safety to living bodies. Cellulose sponge is a material that can be dry-compressed, and if moisture is applied to this dry-compressed cellulose sponge, it absorbs water and expands. Therefore, cellulose sponge is also a preferable material.
　本発明において好適に用いることのできるセルローススポンジは、再生セルロース法、セルロース溶剤溶液法等の、従来からの製造プロセスで製造されるセルローススポンジをそのまま用いることができ、例えば、特許第３５２０５１１号公報に開示されたセルローススポンジが挙げられる。具体的には、セルロースを主成分とした溶解パルプから天然繊維を加えたビスコースを作製する。前記ビスコースに中性結晶芒硝を加えて混合し、混合物を作製する。前記混合物を成型型内に押し込み、または、シート状に排出し、加熱凝固させて、ブロック状、または、シート状セルローススポンジを得ることができる。また、セルローススポンジには、補強繊維として綿（コットン）、亜麻、ラミー、パルプを単独またはそれらを組合せて含むことも好ましく、これら補強繊維を含むことによりスポンジとしての強度が増し、リントを抑制することができるとともに、術後にトロカールから取り出す際に圧排体の破損、脱落を抑制することができる。 As the cellulose sponge that can be suitably used in the present invention, a cellulose sponge produced by a conventional production process such as a regenerated cellulose method or a cellulose solvent solution method can be used as it is. For example, in Japanese Patent No. 3520511 The disclosed cellulose sponge is mentioned. Specifically, viscose with natural fibers added is produced from dissolved pulp mainly composed of cellulose. Neutral crystal mirabilite is added to the viscose and mixed to prepare a mixture. The mixture can be pushed into a mold or discharged into a sheet and heated and solidified to obtain a block-like or sheet-like cellulose sponge. The cellulose sponge preferably contains cotton, flax, ramie, and pulp alone or in combination as reinforcing fibers. By including these reinforcing fibers, the strength of the sponge is increased and lint is suppressed. In addition, it is possible to suppress damage and dropout of the retraction body when it is removed from the trocar after surgery.
　市販のセルローススポンジとしては、東レセルローススポンジ（東レ・ファインケミカル（株）製、商品名）等を使用することができる。このセルローススポンジ原反は、例えば、ブロック形状のものであり、これらをカットしたりあるいは打ち抜いたりして、本発明における吸液膨張性材料として用いられるセルローススポンジの大きさに形成することができる。 As the commercially available cellulose sponge, Toray cellulose sponge (trade name, manufactured by Toray Fine Chemical Co., Ltd.) can be used. The cellulose sponge raw material is, for example, in a block shape, and can be cut or punched to form a cellulose sponge used as a liquid-swellable material in the present invention.
　セルローススポンジは、セルロース自体が吸水性を備えているので、吸水性能を付与する特別な後加工等を行う必要がなく、後加工工程が増えることや後加工に用いる薬剤の安全性についてのリスク管理に伴うコスト増加を抑えることが可能となる。また、セルローススポンジは、リントの発生が少なく、手術時の取扱性に優れており、さらに切開部組織への固着が極めて少ないという特性を有するため手術終了時の回収も容易である。また、吸液膨張性を備えているので、外科手術時に手術対象の臓器とその近傍の臓器との間に挟み込み、手術野を確保するための圧排体として用いる際、同時に、臓器の保護および血液や体液の吸着等の効果も持たせることができる。 Cellulose sponges are water-absorbing, so there is no need for special post-processing to give water-absorbing performance, risk management for increased post-processing steps and safety of drugs used in post-processing. It is possible to suppress the increase in cost associated with. In addition, the cellulose sponge is characterized in that the occurrence of lint is small, the handleability at the time of surgery is excellent, and the adhesion to the incised tissue is extremely small, so that it can be easily collected at the end of the surgery. In addition, since it has fluid absorbability, it can be sandwiched between an organ to be operated and its neighboring organs during surgery, and when used as an exclusion body for securing a surgical field, at the same time, organ protection and blood It is also possible to have effects such as adsorption of body fluids.
　例えば、ブロック状セルローススポンジからシートを作製する場合、押し出し方向をＺ軸方向とすると、製造工程上、これと直交する方向のうち、一方向において引張強度が小さくなることがある。この方向をＹ軸方向とし、Ｚ軸方向およびＹ軸方向と直交する方向をＸ軸方向としたとき、Ｙ軸方向を厚みとすると引っ張りに強いシートになる。ブロック状セルローススポンジの引張強度測定値は、例えば、Ｘ軸方向が９～１７Ｎ／ｃｍ２、Ｙ軸方向が４～９Ｎ／ｃｍ２、Ｚ軸方向が９～１８Ｎ／ｃｍ２である。このとき、引張強度は、７ｃｍ×２ｃｍ×１ｃｍの試験片を１０個以上用意し、テンシロン万能試験機を用いて、前記の５ｃｍ方向を引っ張る軸方向としてチャック間距離５ｃｍで引張試験を行い、引張強度（Ｎ／ｃｍ２）を測定し、平均した値である。 For example, when a sheet is produced from a block-like cellulose sponge, if the extrusion direction is the Z-axis direction, the tensile strength may be reduced in one direction among the directions orthogonal to this in the manufacturing process. When this direction is the Y-axis direction, and the direction perpendicular to the Z-axis direction and the Y-axis direction is the X-axis direction, the sheet is resistant to tension when the Y-axis direction is the thickness. Tensile strength measurements of the block-shaped cellulose sponge, e.g., X-axis direction 9 ~ 17N / cm 2, Y-axis direction 4 ~ 9N / cm 2, Z-axis direction is 9 ~ 18N / cm 2. At this time, ten or more test pieces of 7 cm × 2 cm × 1 cm are prepared for tensile strength, and a tensile test is performed by using a Tensilon universal tester with the above-mentioned 5 cm direction as the axial direction for pulling at a distance between chucks of 5 cm. The strength (N / cm 2 ) is measured and averaged.
　圧排体１０は、標的臓器付近の臓器に手術器具が接触することを防ぎ、前記標的臓器付近の臓器を保護する。また、前記標的臓器付近の臓器を挙上し、圧排することも可能である。 The exclusion body 10 prevents the surgical instrument from coming into contact with an organ near the target organ and protects the organ near the target organ. It is also possible to lift and remove the organs near the target organ.
　また、本発明の圧排体１０において、Ｘ線造影糸２は、造影効果が得られれば圧排体１０のどこに配置しても良いが、臓器との接触が少ない部分へ配置することが好ましい。例えば、シート状の圧排体１０を巻いた状態に形成して使用する場合には、圧排体１０を巻いたときの巻き終わりの長手方向にＸ線造影糸２を配置することがより好ましい。Ｘ線造影糸２は、図１および図２においては、１本設けた状態を示しているが、本発明はこれに限定されず、複数本設けることもできる。Ｘ線造影糸２を複数本設けた場合の配置位置は、造影効果が得られればどのような位置でもよいが、圧排体１０の長手方向または短手方向の両辺付近の位置に配置することがより好ましい。 Further, in the exclusion body 10 of the present invention, the X-ray contrast yarn 2 may be disposed anywhere in the exclusion body 10 as long as a contrast effect is obtained, but it is preferable to dispose the X-ray contrast thread 2 in a portion with little contact with an organ. For example, when forming and using the sheet-like exclusion body 10 in the wound state, it is more preferable to arrange the X-ray contrast yarn 2 in the longitudinal direction at the end of winding when the exclusion body 10 is wound. 1 and 2, the X-ray contrast yarn 2 is shown as being provided, but the present invention is not limited to this, and a plurality of X-ray contrast yarns 2 can be provided. The arrangement position when a plurality of X-ray contrast threads 2 are provided may be any position as long as a contrast effect can be obtained, but may be arranged at positions near both sides in the longitudinal direction or the lateral direction of the exclusion body 10. More preferred.
（実施例１）
　ブロック状セルローススポンジを用意した。具体的には、セルロースを主成分とした溶解パルプから天然繊維を加えたビスコースを作製し、前記ビスコースに中性結晶芒硝を加えて混合し、混合物を作製した。前記混合物を成型型内に押し込み、加熱凝固させて、ブロック状セルローススポンジを得た。得られたブロック状セルローススポンジをスライス状に切断し、打ち抜き加工して、１１０ｍｍ（短手方向）×１５０ｍｍ（長手方向）×０．６ｍｍ（厚み方向）のシート状のセルローススポンジを作製し、乾燥させて、乾燥セルローススポンジを得た。得られた乾燥セルローススポンジを圧縮してパッド材（圧排体）本体とした。 Example 1
A block-like cellulose sponge was prepared. Specifically, viscose obtained by adding natural fibers from dissolved pulp containing cellulose as a main component was prepared, and neutral crystal sodium sulfate was added to and mixed with the viscose to prepare a mixture. The mixture was pushed into a mold and solidified by heating to obtain a block cellulose sponge. The obtained block-like cellulose sponge is cut into slices and punched to produce a sheet-like cellulose sponge of 110 mm (short direction) × 150 mm (longitudinal direction) × 0.6 mm (thickness direction) and dried. To obtain a dry cellulose sponge. The obtained dry cellulose sponge was compressed into a pad material (extruded body) body.
　前記乾燥セルローススポンジの長手方向をミシン縫製方向とし、短手方向の両端部付近を縫着開始位置および縫着終了位置とした。そして、前記乾燥セルローススポンジの長手方向両辺から７ｍｍ内側にスチレン系モノフィラメントＸ線造影糸（ベルテック製、繊維径０．４５ｍｍ）を配置させた。縫着開始位置および縫着終了位置を短手方向から５ｍｍ内側にして、工業用ミシン（ＪＵＫＩ製　ＬＺ２２８４ＮＡ－７）で、針振り幅１．５ｍｍ、送り量（ピッチ）０．５ｍｍ、糸調子０．４Ｎ、縫い始めからの１０ｍｍ（縫着開始領域）と縫い終わりまでの１０ｍｍ（縫着終了領域）の送り量を０．５ｍｍにして、Ｘ線造影糸を埋包することで縫い目の内側に配設しながら、前記ミシンにセットした固定糸で千鳥縫いを行った。前記固定糸としては、手術用縫合糸（松田医科工業販売　未滅菌ワヨラックス　ポリエステル・ブレイド縫合糸　糸の太さ４－０）を用いた。 The longitudinal direction of the dry cellulose sponge was defined as the sewing direction of the sewing machine, and the vicinity of both ends in the short direction was defined as the sewing start position and the sewing end position. Then, a styrene monofilament X-ray contrast yarn (manufactured by Vertec, fiber diameter: 0.45 mm) was placed 7 mm inside from both sides in the longitudinal direction of the dry cellulose sponge. With the sewing start position and sewing end position 5 mm inward from the short direction, with an industrial sewing machine (JUKI LZ2284NA-7), the needle swing width is 1.5 mm, the feed amount (pitch) is 0.5 mm, and the thread tension is 0. .4N, 10 mm from the start of sewing (sewing start area) and 10 mm from the start of sewing (sewing end area) to 0.5 mm, and embedding the X-ray contrast thread inside the seam While being arranged, zigzag stitching was performed with a fixing thread set on the sewing machine. As the fixing thread, a surgical suture (manufactured by Matsuda Medical Industry Co., Ltd., non-sterile wayolax, polyester braided suture, thread thickness 4-0) was used.
　上記セルローススポンジの縫着開始位置および縫着終了位置において、千鳥縫いから出たＸ線造影糸を引き伸ばした。この引き伸ばした状態でＸ線造影糸を前記千鳥縫いの縫い際で切断すると、Ｘ線造影糸の切断端部が千鳥縫いの内部に配設した状態となり、前記千鳥縫いからのＸ線造影糸のはみ出しが１ｍｍ以下となったことを目視で確認した。このようにして、Ｘ線造影糸を表面に固定するとともに、Ｘ線造影糸が千鳥縫いの縫い目の内側に配設された圧排体を得た。なお、本実施例で用いたＸ線造影糸の伸度は７１０％であった。 At the sewing start position and the sewing end position of the cellulose sponge, the X-ray contrast thread from the zigzag stitch was stretched. When the X-ray contrast yarn is cut at the time of the zigzag stitching in this stretched state, the cut end portion of the X-ray contrast yarn is arranged inside the zigzag stitch, and the X-ray contrast yarn from the zigzag stitching is It was visually confirmed that the protrusion was 1 mm or less. In this way, an X-ray contrast thread was fixed on the surface, and an exclusion body was obtained in which the X-ray contrast thread was disposed inside the staggered stitches. In addition, the elongation of the X-ray contrast yarn used in this example was 710%.
　得られた手術用パッド材は、吸水時にスポンジが膨らむことで、前記１ｍｍ以下のＸ線造影糸のはみ出し部分を包埋し、Ｘ線造影糸の端部部分に触れても引っ掛かりを感じなかった。すなわち、手術中のＸ線造影糸端部の臓器への接触を防ぐことができる、安全性を向上させた手術用パッド材が得られたといえる。 The obtained surgical pad material swelled when the water was absorbed, so that the protruding portion of the X-ray contrast thread of 1 mm or less was embedded, and even if it touched the end part of the X-ray contrast thread, it did not feel a catch. . That is, it can be said that a surgical pad material with improved safety capable of preventing contact of the X-ray contrast yarn end portion with the organ during the operation was obtained.
（実施例２）
　千鳥縫いの際に、工業用ミシンの送り量（ピッチ）を０．２５ｍｍに変更し、縫着開始領域および縫着終了領域における送り量を０．５ｍｍとした以外は、実施例１と同様の方法で圧排体を作製した。本実施例においても、Ｘ線造影糸の切断端部が、千鳥縫いの内部に配設された状態となり、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となったことが、目視で確認できた。 (Example 2)
At the time of staggered stitching, the feed amount (pitch) of the industrial sewing machine is changed to 0.25 mm, and the feed amount in the sewing start region and the sewing end region is changed to 0.5 mm. An extrudate was prepared by this method. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
（実施例３）
　千鳥縫いの際に、工業用ミシンの送り量（ピッチ）を１．２５ｍｍに変更し、縫着開始領域および縫着終了領域における送り量を０．５ｍｍとした以外は、実施例１と同様の方法で圧排体を作製した。本実施例においても、Ｘ線造影糸の切断端部が、千鳥縫いの内部に配設された状態となり、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となったことが、目視で確認できた。 (Example 3)
At the time of staggered stitching, the feed rate (pitch) of the industrial sewing machine was changed to 1.25 mm, and the feed rate in the sewing start area and the sewing end area was changed to 0.5 mm, as in Example 1. An extrudate was prepared by this method. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
（実施例４）
　千鳥縫いの際に、工業用ミシンの糸調子を０．８Ｎに変更した以外は、実施例１と同様の方法で圧排体を作製した。本実施例においても、Ｘ線造影糸の切断端部が、千鳥縫いの内部に配設された状態となり、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となったことが、目視で確認できた。 Example 4
Extruders were produced in the same manner as in Example 1 except that the thread tension of the industrial sewing machine was changed to 0.8 N during zigzag stitching. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
（実施例５）
　千鳥縫いの際に、固定糸をシルク（松田医科製　未滅菌　絹縫製合糸　ブレイドシルク　糸の太さ４－０）、工業用ミシンの糸調子を１．０Ｎに変更した以外は実施例１と同様の方法で圧排体を作製した。本実施例においても、Ｘ線造影糸の切断端部が、千鳥縫いの内部に配設された状態となり、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となったことが、目視で確認できた。 (Example 5)
Example 1 except that the fixing thread was changed to silk (non-sterilized silk stitching mixed thread braid silk thread thickness 4-0) and the sewing machine thread tone of the industrial sewing machine to 1.0 N at the time of zigzag stitching. An extrudate was prepared in the same manner. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
（実施例６）
　Ｘ線造影糸としてポリプロピレンマルチフィラメントＸ線造影糸（スペシャリティーファイバーズアンドマテリアル製　Ｍｉｃｒｏｐａｋｅ）を用いた以外は実施例１と同様の方法で圧排体を作製した。 (Example 6)
An extrudate was prepared in the same manner as in Example 1 except that polypropylene multifilament X-ray contrast yarn (Micropake manufactured by Specialty Fibers and Materials) was used as the X-ray contrast yarn.
　上記圧排体の縫着開始位置および縫着終了位置において、千鳥縫いから出たＸ線造影糸を引き伸ばした。この引き伸ばした状態でＸ線造影糸を前記千鳥縫いの縫い際で切断して、Ｘ線造影糸の切断端部が千鳥縫いの内部に配設された状態となったことを目視で確認した。本実施例で用いたＸ線造影糸は、伸度は３０％であり、実施例１で用いたＸ線造影糸と比較して伸度が小さく、縫い際により近い位置で切断する必要があった。このようにして、Ｘ線造影糸を表面に固定するとともに、Ｘ線造影糸が千鳥縫いの縫い目の内側に配設され、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となった圧排体を得た。 The X-ray contrast thread from the zigzag stitch was stretched at the sewing start position and sewing end position of the above exclusion body. In this stretched state, the X-ray contrast yarn was cut at the time of the zigzag stitch, and it was visually confirmed that the cut end portion of the X-ray contrast yarn was disposed inside the zigzag stitch. The X-ray contrast yarn used in this example has an elongation of 30%, which is smaller than that of the X-ray contrast yarn used in Example 1, and it is necessary to cut at a position closer to the sewing. It was. In this way, the X-ray contrast thread is fixed to the surface, and the X-ray contrast thread is disposed inside the staggered stitches, and the extruding body in which the protrusion of the contrast thread from the staggered stitches is 1 mm or less is provided. Obtained.
（実施例７）
　Ｘ線造影糸として、スチレン系モノフィラメントＸ線造影糸（ベルテック製、繊維径０．６５ｍｍ）を用い、針振り幅を２．３ｍｍ、送り量（ピッチ）を０．５ｍｍ、上糸の糸調子を０．４Ｎ、下糸の糸調子を０．０９Ｎとした。縫着開始位置からの１０ｍｍ（縫着開始領域）と縫着終了位置までの１０ｍｍ（縫着終了領域）の送り量を０．５ｍｍにした。他の条件は、実施例１と同様にして圧排体を作製した。本実施例においても、Ｘ線造影糸の切断端部が、千鳥縫いの内部に配設された状態となり、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となったことが、目視で確認できた。このようにして、Ｘ線造影糸を表面に固定するとともに、Ｘ線造影糸が千鳥縫いの縫い目の内側に配設された圧排体を得た。なお、本実施例で用いたＸ線造影糸の伸度は５６０％であった。 (Example 7)
As the X-ray contrast yarn, a styrene monofilament X-ray contrast yarn (manufactured by Vertec, fiber diameter 0.65 mm) is used. The needle swing width is 2.3 mm, the feed amount (pitch) is 0.5 mm, and the upper thread is in tension. The thread tension of 0.4N and lower thread was 0.09N. The feed amount of 10 mm (sewing start area) from the sewing start position and 10 mm (sewing end area) to the sewing end position was set to 0.5 mm. Other conditions were the same as in Example 1 to produce an extrudate. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was. In this way, an X-ray contrast thread was fixed on the surface, and an exclusion body was obtained in which the X-ray contrast thread was disposed inside the staggered stitches. In addition, the elongation of the X-ray contrast yarn used in this example was 560%.
（実施例８）
　千鳥縫いの際に、工業用ミシンの上糸の糸調子を１．６Ｎに変更した以外は、実施例７と同様の方法で圧排体を作製した。本実施例においても、Ｘ線造影糸の切断端部が、千鳥縫いの内部に配設された状態となり、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となったことが、目視で確認できた。 (Example 8)
Extruders were produced in the same manner as in Example 7 except that the thread tension of the upper thread of the industrial sewing machine was changed to 1.6 N during zigzag stitching. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
（実施例９）
　千鳥縫いの際に、縫着開始位置からの１０ｍｍ（縫着開始領域）と縫着終了位置までの１０ｍｍ（縫着終了領域）の送り量を０．２５ｍｍに変更した以外は、実施例７と同様の方法で圧排体を作製した。本実施例においても、Ｘ線造影糸の切断端部が、千鳥縫いの内部に配設された状態となり、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となったことが、目視で確認できた。 Example 9
Example 7 except that the feed amount of 10 mm (sewing start area) from the sewing start position and 10 mm (sewing end area) from the sewing start position to 0.25 mm was changed to 0.25 mm at the staggered stitching. An extrudate was prepared in the same manner. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
（実施例１０）
　千鳥縫いの際に、縫着開始位置からの１０ｍｍ（縫着開始領域）と縫着終了位置までの１０ｍｍ（縫着終了領域）の送り量を０．３７５ｍｍに変更した以外は、実施例７と同様の方法で圧排体を作製した。本実施例においても、Ｘ線造影糸の切断端部が、千鳥縫いの内部に配設された状態となり、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となったことが、目視で確認できた。 (Example 10)
Example 7 except that the feed amount of 10 mm (sewing start area) from the sewing start position and 10 mm (sewing end area) to the sewing end position was changed to 0.375 mm during staggered stitching. An extrudate was prepared in the same manner. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
（実施例１１）
　千鳥縫いの際に、工業用ミシンの送り量（ピッチ）を０．３７５ｍｍに変更し、縫着開始領域および縫着終了領域における送り量を０．５ｍｍとした以外は、実施例７と同様の方法で圧排体を作製した。本実施例においても、Ｘ線造影糸の切断端部が、千鳥縫いの内部に配設された状態となり、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となったことが、目視で確認できた。 (Example 11)
In the zigzag stitching, the feed rate (pitch) of the industrial sewing machine was changed to 0.375 mm, and the feed rate in the sewing start area and the sewing end area was changed to 0.5 mm. An extrudate was prepared by this method. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
（実施例１２）
　千鳥縫いの際に、針振り幅を２．５ｍｍ、上糸の糸調子を０．９Ｎに変更した以外は、実施例１０と同様の方法で圧排体を作製した。本実施例においても、Ｘ線造影糸の切断端部が、千鳥縫いの内部に配設された状態となり、前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下となったことが、目視で確認できた。 Example 12
Extruders were produced in the same manner as in Example 10 except that the stitch swing width was changed to 2.5 mm and the thread tension of the upper thread was changed to 0.9 N during zigzag stitching. Also in this example, it can be visually confirmed that the cut end portion of the X-ray contrast yarn is disposed inside the zigzag stitch, and the protrusion of the contrast yarn from the zigzag stitch is 1 mm or less. It was.
（比較例１）
　実施例１と同様の方法で作製した乾燥セルローススポンジをパッド材（圧排体）本体とした。前記乾燥セルローススポンジの長手方向をミシン縫製方向とし、短手方向の両端部付近を縫着開始位置および縫着終了位置とした。そして、縫着開始位置および縫着終了位置を前記乾燥セルローススポンジの短手方向から５ｍｍ内側にして、長手方向の両辺から７ｍｍ内側のラインを、家庭用ミシン（マクロス社　タイニーミシン）でＸ線造影糸を用いて縫製した。前記ミシンの縫製においては、糸調子を１．３Ｎ、上糸を手術用縫合糸（松田医科工業販売　未滅菌ワヨラックス　ポリエステル・ブレイド縫合糸　糸の太さ４－０）、下糸をスチレン系モノフィラメントＸ線造影糸（ベルテック製、繊維径０．６５ｍｍ）とした。次に、縫着開始位置と縫着終了位置において、縫い際で上糸（手術用縫合糸）および下糸（Ｘ線造影糸）を切断して、Ｘ線造影糸をミシン縫製したセルローススポンジの圧排体を作製した。得られた圧排体において、下糸であるＸ線造影糸の切断端部は、縫い際で切断したものの、上糸から外れて露出していることを目視で確認した。 (Comparative Example 1)
A dry cellulose sponge produced by the same method as in Example 1 was used as the pad material (extruded body) body. The longitudinal direction of the dry cellulose sponge was defined as the sewing direction of the sewing machine, and the vicinity of both ends in the short direction was defined as the sewing start position and the sewing end position. Then, the sewing start position and the sewing end position are set to 5 mm inside from the short side of the dry cellulose sponge, and the line 7 mm inside from both sides in the longitudinal direction is X-ray contrasted with a household sewing machine (Macross Tiny Sewing Machine). Sewing was performed using a thread. In the sewing of the sewing machine, the thread tension is 1.3N, the upper thread is a surgical suture (non-sterilized Bayolax polyester braided suture sold by Matsuda Medical Industry, the thickness is 4-0), and the lower thread is a styrene monofilament X A line contrast yarn (manufactured by Vertec, fiber diameter 0.65 mm) was used. Next, at the sewing start position and the sewing end position, the upper thread (surgical suture thread) and the lower thread (X-ray contrast thread) are cut at the time of sewing, and the cellulose sponge obtained by sewing the X-ray contrast thread with a sewing machine An extrudate was made. In the obtained exclusion body, it was visually confirmed that the cut end portion of the X-ray contrast yarn, which is the lower thread, was cut off at the time of sewing, but was exposed out of the upper thread.
（比較例２）
　下糸をポリプロピレンマルチフィラメントＸ線造影糸（スペシャリティーファイバーズアンドマテリアル製　Ｍｉｃｒｏｐａｋｅ）とした以外は、比較例１と同様の方法でＸ線造影糸をミシン縫製したセルローススポンジの圧排体を作製した。本比較例においても、Ｘ線造影糸の切断部が乾燥セルローススポンジから露出していることを目視で確認した。 (Comparative Example 2)
An extrudate of cellulose sponge in which the X-ray contrast yarn was sewn in the same manner as in Comparative Example 1 was prepared except that the lower thread was a polypropylene multifilament X-ray contrast yarn (Micropake manufactured by Specialty Fibers and Materials). Also in this comparative example, it was visually confirmed that the cut portion of the X-ray contrast yarn was exposed from the dry cellulose sponge.
（比較例３）
　千鳥縫いの際に、縫着開始位置からの１０ｍｍ（縫着開始領域）と縫着終了位置までの１０ｍｍ（縫着終了領域）の送り量を０．７５ｍｍに変更した以外は、実施例７と同様の方法で圧排体を作製した。本比較例においては、初期の前記千鳥縫いからの造影糸のはみ出しが１ｍｍ以下であることが目視で確認できたが、縫着開始領域と縫着終了領域での縫製ピッチが大きく、使用時にＸ線造影糸の端部が千鳥縫いの縫い目の内側からはみ出してしまうおそれがあった。 (Comparative Example 3)
Example 7 except that the feed amount of 10 mm (sewing start area) from the sewing start position and 10 mm (sewing end area) from the sewing start position to 0.75 mm was changed to 0.75 mm during the staggered stitching. An extrudate was prepared in the same manner. In this comparative example, it was confirmed by visual observation that the protrusion of the contrast thread from the initial staggered stitch was 1 mm or less, but the sewing pitch in the sewing start area and the sewing end area was large, and X There is a possibility that the end of the line contrast thread may protrude from the inside of the staggered seam.
　以上、実施の形態の具体例として圧排体をあげて本発明を説明したが、本発明の手術用パッド材は、これらの具体例で記載されたもののみに限定されるものではなく、種々の態様が可能である。 As described above, the present invention has been described with the extruding body as a specific example of the embodiment. However, the surgical pad material of the present invention is not limited to those described in these specific examples, and various Embodiments are possible.
１０　圧排体（手術用パッド材）
１　　圧排体本体（パッド材本体、吸液膨張性材料）
２　　造影糸
３　　固定糸
４Ａ　縫着開始位置
４Ｂ　縫着終了位置
５Ａ　縫着開始領域
５Ｂ　縫着終了領域 10 Extruder (Surgery pad material)
1 Extruder body (pad body, liquid-swellable material)
2 Contrast thread 3 Fixed thread 4A Sewing start position 4B Sewing end position 5A Sewing start area 5B Sewing end area

Claims (5)

  1. 　パッド材本体とＸ線造影糸とを含み、
    　前記Ｘ線造影糸は、固定糸によって前記パッド材本体の表面に固定されており、
    　前記固定糸は、千鳥縫いで前記パッド材本体に縫着されており、
    　前記固定糸の縫着開始領域および縫着終了領域において、前記千鳥縫いの送り量は、０．２５ｍｍ以上０．７５ｍｍ未満の範囲内にあり、
    　前記Ｘ線造影糸は、前記千鳥縫いの縫い目の内側に配設されていることを特徴とする手術用パッド材。     Including a pad material body and an X-ray contrast yarn,
    The X-ray contrast thread is fixed to the surface of the pad material body by a fixing thread,
    The fixing thread is sewn to the pad material main body by zigzag stitching,
    In the sewing start area and the sewing end area of the fixed thread, the feed amount of the staggered stitch is within a range of 0.25 mm or more and less than 0.75 mm,
    The surgical pad material, wherein the X-ray contrast yarn is arranged inside the staggered seam.
  2. 　前記手術用パッド材は、吸液膨張性材料で構成された手術用の圧排体であり、前記吸液膨張性材料を乾燥圧縮することによって形成されたパッド材本体とＸ線造影糸とを含むことを特徴とする、請求項１記載の手術用パッド材。 The surgical pad material is a surgical extrudate composed of a liquid-swellable material, and includes a pad material body formed by dry-compressing the liquid-swellable material and an X-ray contrast yarn. The surgical pad material according to claim 1, wherein:
  3. 　前記Ｘ線造影糸は、伸度が３０～９００％の範囲内にある、請求項１または２記載の手術用パッド材。 The surgical pad material according to claim 1 or 2, wherein the X-ray contrast yarn has an elongation in a range of 30 to 900%.
  4. 　前記固定糸は、手術用縫合糸である、請求項１から３のいずれか一項に記載の手術用パッド材。 The surgical pad material according to any one of claims 1 to 3, wherein the fixing thread is a surgical suture.
  5. 　前記パッド材本体は、セルローススポンジである、請求項１から４のいずれか一項に記載の手術用パッド材。 The surgical pad material according to any one of claims 1 to 4, wherein the pad material body is a cellulose sponge.
PCT/JP2016/086087 2015-12-07 2016-12-05 Surgical pad material WO2017099039A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017555057A JP6632635B2 (en) 2015-12-07 2016-12-05 Surgical pad material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-238935 2015-12-07
JP2015238935 2015-12-07

Publications (1)

Publication Number Publication Date
WO2017099039A1 true WO2017099039A1 (en) 2017-06-15

Family

ID=59014223

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/086087 WO2017099039A1 (en) 2015-12-07 2016-12-05 Surgical pad material

Country Status (2)

Country Link
JP (1) JP6632635B2 (en)
WO (1) WO2017099039A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834390A (en) * 1972-11-20 1974-09-10 Weck & Co Edward Combination neurosurgical sponge
JP2009061186A (en) * 2007-09-07 2009-03-26 Kawamoto Sangyo Kk Hygienic material for surgery
EP2103292A2 (en) * 2008-03-11 2009-09-23 Paul Hartmann Aktiengesellschaft Textile or non-woven fabric OP article, in particular compress, swab, stomach cloth
JP2013043066A (en) * 2011-08-26 2013-03-04 Kawamoto Sangyo Kk Surgical exclusion body
JP2013094257A (en) * 2011-10-28 2013-05-20 Kawamoto Sangyo Kk Small surgical pad

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834390A (en) * 1972-11-20 1974-09-10 Weck & Co Edward Combination neurosurgical sponge
JP2009061186A (en) * 2007-09-07 2009-03-26 Kawamoto Sangyo Kk Hygienic material for surgery
EP2103292A2 (en) * 2008-03-11 2009-09-23 Paul Hartmann Aktiengesellschaft Textile or non-woven fabric OP article, in particular compress, swab, stomach cloth
JP2013043066A (en) * 2011-08-26 2013-03-04 Kawamoto Sangyo Kk Surgical exclusion body
JP2013094257A (en) * 2011-10-28 2013-05-20 Kawamoto Sangyo Kk Small surgical pad

Also Published As

Publication number Publication date
JP6632635B2 (en) 2020-01-22
JPWO2017099039A1 (en) 2018-06-14

Similar Documents

Publication Publication Date Title
CA1221508A (en) Knitted surgical swabs
JP5030773B2 (en) X-ray contrast yarn, X-ray contrast covering yarn, X-ray contrast yarn and / or fiber structure using X-ray contrast covering yarn
JP2014111118A (en) Wound healing product made from bulked filament tow
JP6128845B2 (en) Sanitary tampons
KR101396672B1 (en) A stitching fiber for plastic surgery
WO2017099039A1 (en) Surgical pad material
US10111782B2 (en) Resorbable laparoscopically deployable hemostat
BR112017005377B1 (en) Surgical pad composed of non-woven fabric and textile polymer network and its preparation process
JP5616196B2 (en) Medical prosthesis
JP7341416B2 (en) medical gauze
JP2013043066A (en) Surgical exclusion body
JPWO2015178311A1 (en) Exclusion body
JP7193894B1 (en) sanitary material
JP2006051209A (en) X-ray contrast gauze
JPH11169401A (en) Gauze with handle
JP3730555B2 (en) How to make surgical gauze
EP1787599B1 (en) Cover for wrapping a surgical instrument
JP2019165847A (en) Suture prosthetic material for automatic suture device
JP2020512853A (en) X-ray detectable cloth and its use in surgical patties and sponges
JPH0528143B2 (en)
JP2005052471A (en) Medical cloth material

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16872937

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017555057

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16872937

Country of ref document: EP

Kind code of ref document: A1