NO130094B - - Google Patents

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Publication number
NO130094B
NO130094B NO00441/72A NO44172A NO130094B NO 130094 B NO130094 B NO 130094B NO 00441/72 A NO00441/72 A NO 00441/72A NO 44172 A NO44172 A NO 44172A NO 130094 B NO130094 B NO 130094B
Authority
NO
Norway
Prior art keywords
strip
patch
sponge
thread
bands
Prior art date
Application number
NO00441/72A
Other languages
Norwegian (no)
Inventor
H Reimels
Original Assignee
Codman & Shurtleff
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 Codman & Shurtleff filed Critical Codman & Shurtleff
Publication of NO130094B publication Critical patent/NO130094B/no

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/36Surgical swabs, e.g. for absorbency or packing body cavities during surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/20Tampons, e.g. catamenial tampons; Accessories therefor
    • A61F13/2082Apparatus or processes of manufacturing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/44Absorbent 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47Joining single elements to sheets, plates or other substantially flat surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/69General aspects of joining filaments 
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729Textile or other fibrous material made from plastics
    • B29C66/7294Non woven mats, e.g. felt
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39Markers, e.g. radio-opaque or breast lesions markers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B29C66/712General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined the composition of one of the parts to be joined being different from the composition of the other part
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2313/00Use of textile products or fabrics as reinforcement

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Textile Engineering (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Materials For Medical Uses (AREA)
  • Nonwoven Fabrics (AREA)

Description

Kirurgisk svamp. Surgical sponge.

Oppfinnelsen angår en kirurgisk svamp for anvendelse ved finere inngrep som f.eks. rygghvirveloperasjoner, hjerneopera-sjoner, nerveoperasjoner og lignende. The invention relates to a surgical sponge for use in finer interventions such as e.g. spinal operations, brain operations, nerve operations and the like.

Ved operasjoner av denne art har det tidligere vært praksis som svamp å anvende en strimmel av med hverandre bundede, ikke vevede fibre.Denne type rr.iniatyrsvamper er nodvendig på grunn av det lille operasjonsområde og inngrepets fine art. Som folge av sin ringe storrelse, er det nodvendig å anvende hjelpemidler for å kunne trekke svampen ut for at det kan sikres at svamper ikke blir etterlatt i såret, og også for å kunne håndtere svampen. In operations of this kind, it has previously been practice to use a strip of interconnected, non-woven fibers as a sponge. This type of rr.initiative sponge is necessary because of the small operating area and the delicate nature of the procedure. As a result of its small size, it is necessary to use aids to be able to extract the sponge in order to ensure that sponges are not left in the wound, and also to be able to handle the sponge.

Tidligere kjente kirurgiske svamper av denne art har anvendt en uttrekkstråd som er sydd direkte til en eller begge over-flater av svampen og ofte når det er ønskelig er en strimmel av strå-lirgsugjennomtrengelig materiale kombinert med tråden og samtidig sydd på svampen. Når svampen er frenEbilt på denne måte blir den ru på begge sider fordi stingene i sømmen strekker .seg tvers gjennom svampen. Også kombinasjonen av uttrekkstråden og det strålingsugjennomtrengelige materialet, er uheldig fordi hvis dette materialet skulle løsne ved et tilfelle, ville det også resultere i at tråden løsnet slik at svampen ville kunne bli oversett og utilsiktet bli igjen i såret. Previously known surgical sponges of this kind have used an extraction thread which is sewn directly to one or both surfaces of the sponge and often, when desired, a strip of straw-lirg absorbent material is combined with the thread and simultaneously sewn onto the sponge. When the sponge is prepared in this way, it becomes rough on both sides because the stitches in the seam extend across the sponge. Also, the combination of the extraction wire and the radiopaque material is unfortunate because if this material were to become detached by accident, it would also result in the wire becoming detached so that the sponge could be overlooked and inadvertently left in the wound.

I tillegg hertil vil selve syingen som er nødvendig for fremstilling av svampen nødvendiggjøre håndarbeide hvilket betyr ve-sentlige fremst Ulings omkostninger. In addition to this, the actual sewing that is necessary for the production of the sponge will necessitate handwork, which means significant costs, especially for Uling.

Hensikten med oppfinnelsen er å tilveiebringe en kirurgisk svamp som ikke har de ovenfor nevnte ulemper. The purpose of the invention is to provide a surgical sponge which does not have the above-mentioned disadvantages.

Dette oppnås ifølge oppfinnelsen ved en lapp eller strimmel av med hverandre forbundne, ikke vevede fibre og en uttrekkstråd av plastmateriale som med en flatgjort del er forbundet med overflaten av lappen eller strimmelen, og den flatgjorte del av tråden er myknet med varme, slik at den delvis trekker inn i den nevnte overflate. This is achieved according to the invention by a patch or strip of interconnected, non-woven fibers and an extraction thread of plastic material which is connected with a flattened part to the surface of the patch or strip, and the flattened part of the thread is softened with heat, so that it partially draws into the aforementioned surface.

Fortrinnsvis består den flatgjorte del av tråden av en rekke sammenhengende flatgjorte partier. Preferably, the flattened part of the thread consists of a number of continuous flattened parts.

Med fordel er minst ett bånd av strålingsugjennomtrengelig materiale festet på overflaten av strimmelen eller lappen. Advantageously, at least one band of radiopaque material is attached to the surface of the strip or patch.

Det strålingsugjennomtrengelige bånd er fortrinnsvis festet på overflaten i en annen posisjon enn tråden. The radiopaque tape is preferably attached to the surface in a different position than the wire.

Forbindelsen mellom det strålingsugjennomtrengelige bånd og strimmelen eller lappen består fortrinnsvis bare i at en del av båndet er myknet, slik at den divis trekker inn i den nevnte overflate. The connection between the radiation-impermeable tape and the strip or patch preferably only consists of a part of the tape being softened, so that it partially draws into the said surface.

Plasttråden og båndet kan være ultralydsveiset til The plastic wire and tape can be ultrasonically welded to

strimmelen-. the strip-.

Oppfinnelsen skal forklares nærmere under henvisning The invention shall be explained in more detail under reference

til tegningen. to the drawing.

Fig. 1 viser et grunnriss av en kirurgisk svamp Fig. 1 shows a plan view of a surgical sponge

ifolge oppfinnelsen. according to the invention.

Fig. 2 viser et snitt langs linjen 2-2 på fig. 1. Fig. 3 viser skjematisk utstyr for fremstilling av Fig. 2 shows a section along the line 2-2 in fig. 1. Fig. 3 shows schematic equipment for the production of

svampen på fig. 1. the sponge in fig. 1.

Fig. 4 viser et snitt langs linjen 4-4 på fig. 3* Fig. 5 viser et grunnriss av en annen utforelsesform Fig. 4 shows a section along the line 4-4 in fig. 3* Fig. 5 shows a floor plan of another embodiment

av en svamp ifolge oppfinnelsen. of a sponge according to the invention.

Fig. 1 og 2 viser en kirurgisk svamp 10 som er fremstilt av en forholdsvis tynn strimmel av ikke vevede fibre 11 som er forbundet med hverandre for å hindre at den loser seg opp eller at den loer. Strimmelen 11 er fortrinnsvis fremstilt av rayonfibre Figs 1 and 2 show a surgical sponge 10 which is made from a relatively thin strip of non-woven fibers 11 which are connected to each other to prevent it from loosening or fluffing. The strip 11 is preferably made of rayon fibres

som er kardet på kjent måte og så nålestukket til et ark som så deles opp i strimler med onsket lengde' og bredde. Rayonfibrene er fortrinnsvis myk 3 denier rayon - med en lengde på ca. 30mm. Dette materialet er fremstilt og anvendt for kirurgiske svamper tidligere, og det har vist seg at når de er bundet méd en blanding av stivelse og polyvinylalkohol, vil strimlene beholde sin beskaffenhet, og det viser seg at det absorberer vann mer enn 25 ganger sin egen vekt. which is carded in a known manner and then needle punched into a sheet which is then split into strips of the desired length and width. The rayon fibers are preferably soft 3 denier rayon - with a length of approx. 30mm. This material has been produced and used for surgical sponges in the past, and it has been shown that when bound with a mixture of starch and polyvinyl alcohol, the strips retain their properties and are found to absorb water more than 25 times their own weight. .

Uttrekningstråden 12 er festet til en overflate av strimmelen 11 og omfatter en flatgjort"del 13 som er varmemyknet for å danne en forbindelse mellom tråden 12 og overflaten av strim— melen 11. Som nevnt ovenfor anvendes den kirurgiske svamp 10 i forste rekke for meget fine inngrep og operasjonsområdet er betydelig mindre ved denne type operasjoner enn normalt. Av den grunn er svampen forholdsvis liten og tynn og det må sorges for at det i forbindelse med slike svamper er tatt forholdsregler for at de kan trekkes ut av såret etter å ha absorbert en betydelig mengde legems-væske. Uttrekningstråden 12 er anordnet for dette formål, og forbindelsen-mellom -tråden--og-overfl-aten--av-strimmelen 11 er derfor meget viktig. Lengden av tråden 12 er ikke kritisk så lenge den kan anbringes i tilstrekkelig avstand fra såret, slik at den er synlig og lett kan håndteres av kirurgen eller hans assistent. The extraction wire 12 is attached to a surface of the strip 11 and comprises a flattened portion 13 which is heat softened to form a connection between the wire 12 and the surface of the strip 11. As mentioned above, the surgical sponge 10 is used primarily for very fine intervention and the operating area is significantly smaller in this type of operation than normal. For this reason, the sponge is relatively small and thin and it must be ensured that in connection with such sponges, precautions are taken so that they can be pulled out of the wound after absorbing a significant amount of body fluid. The extraction wire 12 is provided for this purpose, and the connection between the wire and the surface of the strip 11 is therefore very important. The length of the wire 12 is not critical as long as it can be placed at a sufficient distance from the wound, so that it is visible and can be easily handled by the surgeon or his assistant.

Uttrekningstråden 12 er fortrinnsvis fremstilt av kontinuerlige filamenter av polyester. Det har imidlertid vist seg at annet plastmateriale som f»eks. nylon og polypropylen også gir en sikker forbindelse. Polyestermaterialet resulterer imidlertid i den beste kombinasjon av sluttproduktets egenskaper som f.eks. bindingsstyrke og blothet av tråden. The pull-out thread 12 is preferably made of continuous filaments of polyester. However, it has been shown that other plastic material such as nylon and polypropylene also provide a secure connection. However, the polyester material results in the best combination of the final product's properties, such as bond strength and smoothness of the thread.

I tillegg til uttrekkstråden 12 er det anbragt et In addition to the pull-out wire 12, a

par bånd 14 og 15 som består "av strålingsugjennomtrengelig materiale som også er forbundet med overflaten av strimmelen 11„ Selv om to bånd av strålingsugjennomtrengelig materiale er vist i utforelses-eksemplet, er det klart at det kan anvendes ett eller flere enn to bånd avhengig av svampens storrelse. Selv om mange strålingsugjennomtrengelige materialer kan anvendes i forbindelse med oppfinnelsen, har det vist seg at vinyl som inneholder bariumsulfat er meget effektivt og danner en meget sikker forbindelse med overflaten av. strimmelen 11. pair of bands 14 and 15 consisting of radiopaque material which is also connected to the surface of the strip 11 Although two bands of radiopaque material are shown in the exemplary embodiment, it is clear that one or more than two bands may be used depending on size of the sponge Although many radiopaque materials can be used in connection with the invention, vinyl containing barium sulfate has been found to be very effective and form a very secure bond with the surface of the strip 11.

Den foretrukne fremgangsmåte til fremstilling av The preferred method for the preparation of

den kirurgiske svamp ifolge oppfinnelsen danner en viktig del av denne og skal beskrives nærmere nedenfor. På fig. 3 °g 4 er vist en varmemyknende uttrekningstråd 12 og strålingsugjennomtrengelige bånd 14 og 15. For å unngå nødvendigheten av å anvende ekstra materialer som f.eks. klebemidler og i den hensikt å eliminere odeleggende virk-ninger av anvendelsen av varme for å oppnå den nodvendige forbindelse mellom uttrekstråden 12, båndene 14 og 15 og overflaten av strimmelen 11, er det her anvendt ultralydsveising. En slik anordning er be-skrevet i U.S.-patentskrift nr. 3«440.117 og omfatter en hoyfrekvens-generator 20, ledninger 21 for overforing,.av vekselstrømmen med 20kHz fra generatoren 20 til ultralydomformeren 22. Omformeren 22 er for - synt med et hode 23 for overforing av lydenergien til tråden 12 og båndene 14 og. 15. Omformeren 22 er en elektromekanisk vibrator og inneholder en eller flere piezoelektriske skiver som svinger under innvirkningen av vekselstrømmen. Svingningene forsterkes og opptrer som longitudinale svingninger i enden av hodet 23. the surgical sponge according to the invention forms an important part of this and shall be described in more detail below. In fig. 3 and 4, a heat-softening drawing thread 12 and radiation-impermeable bands 14 and 15 are shown. To avoid the necessity of using additional materials such as e.g. adhesives and in order to eliminate the damaging effects of the use of heat to achieve the necessary connection between the pull-out wire 12, the bands 14 and 15 and the surface of the strip 11, ultrasonic welding is used here. Such a device is described in U.S. Patent No. 3,440,117 and comprises a high-frequency generator 20, wires 21 for transferring the alternating current with 20 kHz from the generator 20 to the ultrasonic transducer 22. The transducer 22 is provided with a head 23 for transferring the sound energy to the wire 12 and the bands 14 and. 15. The converter 22 is an electromechanical vibrator and contains one or more piezoelectric discs which oscillate under the influence of the alternating current. The oscillations are amplified and appear as longitudinal oscillations at the end of the head 23.

For samtidig å kunne samle alle bestanddelene av To be able to collect all the components at the same time

den kirurgiske svamp 10, anbringes strimmelen 11 på et bæreorgan 24 som er anordnet rett under ultralydhodet 23. Uttrekningstråden 12 the surgical sponge 10, the strip 11 is placed on a carrier 24 which is arranged directly below the ultrasound head 23. The extraction wire 12

og båndene 14 og 15 anbringes så på strimmelen 11 hovedsakelig slik som vist på fig. 1. Som det fremgår av fig. 4 er den nedre ende av hodet 23 forsynt med et antall ribber 25 som er beregnet på å kon-takte bare materialet av uttrekningstråden 12 og båndene 14 og 15 i and the bands 14 and 15 are then placed on the strip 11 mainly as shown in fig. 1. As can be seen from fig. 4, the lower end of the head 23 is provided with a number of ribs 25 which are intended to contact only the material of the drawing wire 12 and the bands 14 and 15 in

den grad det er nodvendig for å'mykne disse slik at de vil delvis trekke inn i den ovre overflate av strimmelen 11 og danne en sikker forbindelse mellom tråden resp. båndet og) fibrene i strimmelen. Som det fremgår av fig. 2 vil virkningen av--hodet 23 på den ovre overflate av tråden 12 og båndene 14 og 15 flatgjore disse og tvinge dem inn i den ovre overflate av strimmelen 11 samtidig med at de mykner. to the extent necessary to soften these so that they will partially draw into the upper surface of the strip 11 and form a secure connection between the thread or the ribbon and) the fibers in the strip. As can be seen from fig. 2, the action of the head 23 on the upper surface of the thread 12 and the bands 14 and 15 will flatten these and force them into the upper surface of the strip 11 at the same time as they soften.

I enkelte tilfeller fceks. hvor det er onskelig en mer fleksibel kirurgisk svamp, har det vist seg onskelig å minske området av forbindelsen mellom strimmelen 11 og uttrekkstråden 12. Dette kan oppnås som vist på fig. 5 hvor svampen 10a omfatter en strimmel lia og en uttrekningstråd 12a som er festet til overflaten, ikke slik som vist på fig. 1, men flatlagt og forbundet på flere In some cases fceks. where a more flexible surgical sponge is desired, it has been found desirable to reduce the area of the connection between the strip 11 and the extraction wire 12. This can be achieved as shown in fig. 5, where the sponge 10a comprises a strip lia and a pull-out thread 12a which is attached to the surface, not as shown in fig. 1, but flattened and connected on several

steder B langs lengden av strimmelen„ De deler av tråden som ikke fe er forbundet med strimmelen, virker som hengsler og oker fleksibili-^teten. places B along the length of the strip. The parts of the thread which are not connected to the strip act as hinges and increase the flexibility.

For å fremstille en slik forbindelse, er ribbene 25 på hodet 23 delt opp i lengderetningen slik at kontakten mellom hodet 23 og tråden 12a bareakjerpå forhåndsbestemte, innbyrdes at-skilte steder. In order to produce such a connection, the ribs 25 on the head 23 are split up in the longitudinal direction so that the contact between the head 23 and the wire 12a only abuts on predetermined, mutually separated places.

Det er klart at oppfinnelsen tilveiebringer en ny kirurgisk svampkonstruksjon som har mange fordeler fremfor de tidligere' kjente. Ved å eliminere nødvendigheten av sting eller klebemidler, oppnå s en kirurgisk svamp som er fullstendig myk og jevn på den side som ligger an i såret. I tillegg hertil vil de strålingsugjennomtrengelige bånd befinne seg på andre steder enn der uttrekstråden befinner seg slik at det ikke oppstår fare i det tilfelle at uttrekkstråden ved et uhell fjernes fra overflaten av strimmelen. Det er også klart at fremgangsmåten til fremstilling av den kirurgiske svamp ifolge oppfinnelsen, er meget okonomisk ved at alle bestand-deler kan samles i en arbeidsoperasjon og at ikke noe ekstra materiale som f.eks. klebemidler er nodvendig for å samle bestanddelene. It is clear that the invention provides a new surgical sponge construction which has many advantages over those previously known. By eliminating the need for stitches or adhesives, a surgical sponge is achieved that is completely soft and smooth on the side that abuts the wound. In addition to this, the radiation-impermeable bands will be located in other places than where the pull-out wire is located so that there is no danger in the event that the pull-out wire is accidentally removed from the surface of the strip. It is also clear that the method for producing the surgical sponge according to the invention is very economical in that all components can be collected in one operation and that no additional material such as e.g. adhesives are needed to bring the components together.

Claims (6)

1. Kirurgisk svamp for anvendelse ved finere inngrep, karakterisert ved en lapp eller strimmel av med hverandre forbundne, ikke vevede fibre og en uttrekkstråd av plastmateriale som med en flatgjort del er forbundet med overflaten av lappen eller strimmelen, og den flatgjorte del av tråden er myknet med varme, slik at den delvis trekker inn i den nevnte overflate.1. Surgical sponge for use in finer interventions, characterized by a patch or strip of interconnected, non-woven fibers and an extraction thread of plastic material which is connected with a flattened part to the surface of the patch or strip, and the flattened part of the thread is softened with heat, so that it partially draws into said surface. 2. Svamp ifølge krav 1,karakterisert ved at den flatgjorte del av tråden består av en rekke sammenhengende flatgjorte partier.2. Sponge according to claim 1, characterized in that the flattened part of the thread consists of a number of connected flattened parts. 3. Svamp ifølge krav 1 eller 2,karakterisert ved minst ett bånd av strålingsugjennomtrengelig materiale som er festet på overflaten av strimmelen eller lappen.3. Sponge according to claim 1 or 2, characterized by at least one band of radiation-impermeable material which is attached to the surface of the strip or patch. 4. Svamp ifølge krav 3, karakterisert ved at det strålingsugjennomtrengelige bånd er festet på overflaten i en annen posisjon enn tråden.4. Sponge according to claim 3, characterized in that the radiation-impermeable band is attached to the surface in a different position than the thread. 5. Svamp ifølge krav 4,karakterisert ved at forbindelsen mellom det strålingsugjennomtrengelige bånd og strimmelen eller lappen bare består i at en del av båndet er myknet, slik at den delvis trekker inn i den nevnte overflate.5. Sponge according to claim 4, characterized in that the connection between the radiation-impermeable band and the strip or patch only consists of a part of the band being softened, so that it partially draws into the said surface. 6. Fremgangsmåte til fremstilling av en svamp ifølge et eller flere av de foregående krav, karakterisert ved at strimmelen eller lappen anbringes.på et underlag, at uttrekkstråden og båndene anbringes oppe på strimmelen eller lappen, og at et varmefrembringende redskap trykkes mot de ønskede steder av tråden og båndene, slik at de i myknet tilstand flatpresses og trenger delvis inn i strimmelens eller lappens overflate.6. Method for producing a sponge according to one or more of the preceding claims, characterized in that the strip or patch is placed on a substrate, that the extraction wire and bands are placed on top of the strip or patch, and that a heat-generating tool is pressed against the desired locations of the thread and bands, so that in their softened state they are pressed flat and partially penetrate the surface of the strip or patch.
NO00441/72A 1971-02-17 1972-02-15 NO130094B (en)

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DE (1) DE2207152C3 (en)
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DE2207152A1 (en) 1972-09-21
CA953888A (en) 1974-09-03
FR2125527B1 (en) 1976-01-16
FI58869B (en) 1981-01-30
DE2207152C3 (en) 1982-04-01
DK130625B (en) 1975-03-17
GB1360548A (en) 1974-07-17
DK130625C (en) 1975-08-25
AU466211B2 (en) 1975-10-23
IT950650B (en) 1973-06-20
US3736935A (en) 1973-06-05
AU3903472A (en) 1973-08-23
DE2207152B2 (en) 1981-07-02
BR7200879D0 (en) 1973-05-31
ZA721028B (en) 1973-09-26
FR2125527A1 (en) 1972-09-29
FI58869C (en) 1981-05-11
JPS5559B1 (en) 1980-01-05
SE392397B (en) 1977-03-28

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