US3837950A - Surgical sponge - Google Patents
Surgical sponge Download PDFInfo
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- US3837950A US3837950A US00297583A US29758372A US3837950A US 3837950 A US3837950 A US 3837950A US 00297583 A US00297583 A US 00297583A US 29758372 A US29758372 A US 29758372A US 3837950 A US3837950 A US 3837950A
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- sponges
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- 239000000835 fiber Substances 0.000 abstract description 13
- 229920003023 plastic Polymers 0.000 abstract description 9
- 239000004033 plastic Substances 0.000 abstract description 9
- 238000001356 surgical procedure Methods 0.000 abstract description 7
- 230000032798 delamination Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 229920000297 Rayon Polymers 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
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- 238000007428 craniotomy Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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Images
Classifications
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- 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
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2082—Apparatus or processes of manufacturing
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint 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
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General 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
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General 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
- B29C66/73—General 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
- B29C66/739—General 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
- B29C66/7392—General 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General 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
- B29C66/814—General 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
- B29C66/8141—General 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
- B29C66/81427—General 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, 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
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General 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
- B29C66/71—General 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General 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
- B29C66/71—General 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
- B29C66/712—General 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General 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
- B29C66/72—General 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
- B29C66/729—Textile or other fibrous material made from plastics
- B29C66/7294—Non woven mats, e.g. felt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING 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
- B29K2313/00—Use of textile products or fabrics as reinforcement
Abstract
A SURGICAL SPONGE USEFUL FOR DELICATE SURGICAL PROCEDURES IS MADE BY PROVIDING A STRIP OF NONWOVEN FIBERS WHICH ARE SECURELY BONDED AGAINST DELAMINATION, AND BONDING A PLASTIC RETRIEVAL THREAD TO THE SURFACE OF THE STRIP BY HEATSOFTENING A PORTION OF THE THREAD TO CAUSE IT TO FLOW PARTIALLY INTO THE SURFACE OF THE STRIP. THE RESULTING SPONGE MAY ALSO HAVE A BAND OF RADIOPAQUE MATERIAL BONDED TO ITS SURFACE BY HEAT-SOFTENING THE PLASTIC MATERIAL OF THE BAND.
Description
H. G. R'EIMELS 3,837,950
SURGICAL sronen Original Filed Fb. 17, 1971 Sept. 24, 1974 United States Patent 3,837,950 SURGICAL SPONGE Harry G. Reimels, Braintree, Mass., assignor to Codman & Shurtletf, Inc.
Original application Feb. 17, 1971, Ser. No. 116,187, now Patent No. 3,736,935. Divided and this application Oct. 13, 1972, Ser. No. 297,583
Int. Cl. B32b 31/20 U.S. Cl. 156-73 5 Claims ABSTRACT OF THE DISCLOSURE A surgical sponge useful for delicate surgical procedures is made by providing a strip of nonwoven fibers which are securely bonded against delamination, and bonding a plastic retrieval thread to the surface of the strip by heatsoftening a portion of the thread to cause it to flow partially into the surface of the strip. The resulting sponge may also have a band of radiopaque material bonded to its surface by heat-softening the plastic material of the band.
This is a division of application Ser. No. 116,187, filed Feb. 17, 1971, now U.S. Pat. No. 3,736,935.
Background of the Invention This invention relates to surgical sponges and, more particularly, to surgical sponges suitable for use in laminectomies, craniotomies, nerve surgery or other delicate surgical procedures.
It has been the practice in the above types of surgery to utilize a relatively small, thin strip of bonded nonwoven fibers as a sponge. This type of miniature sponge is necessary because of the small operating field and the delicate nature of the procedure. However, because of its size, it is necessary to attach some means, such as, a retrieval thread, to the sponges in order to insure that the sponges will not be left in the wound and to provide a handle for applying and withdrawing the sponges from the wound site.
Prior surgical sponges of this type utilized retrieval threads that were stitched directly to one or both surfaces of the sponge and often, when desired, a strip of radiopaque material was combined with the thread and simultaneously stitched to the sponge. When fabricated in this manner, the sponges were rough on both sides, in that the stitching extended entirely through the sponge. Also, the combination of retrieval thread and radiopaque material was unsafe because the accidental release of one elemental would result in the release of the other element, thus, rendering the sponge free of detection means and capable of being inadvertently left in the wound.
In addition, the stitching operation utilized to fabricate the sponges was necessarily a hand operation resulting in an excessively large manufacturing cost.
Summary of the Invention The disadvantages of the prior surgical sponges are eliminated by the present invention which provides a unique sponge construction comprising a strip of nonwoven bonded fibers having a plastic retrieval thread secured to one surface thereof solely by a flattened portion of the thread that has been heat-softened to flow partially into and between the fibers of the strip.
One or more bands of radiopaque material may also be bonded to the surface of the sponge in the same manner and at the same itme, but at a different location, as the plastic retrieval thread.
The various elements of the sponge may be simultaneously fabricated by properly positioning the strip, plastic retrieval thread and radiopaque bands under the horn of 'ice an ultrasonic welding device and then bringing the born into contact with the thread and bands.
Thus, in a single manipulative step, an improved surgical sponge may be fabricated which possesses numerous advantages over all known prior sponges.
For a better understanding of the invention, as well as other objects and further features thereof, reference is made to the following detailed description to be read in conjunction with the accompanying drawings, wherein:
FIG. 1 is a plan view of the surgical sponge of the present invention with portions broken away for clarity;
FIG. 2 is a cross sectional view taken along line 2-2 in FIG. 1;
FIG. 3 is a side elevational view schematically illustrating the process for manufacturing the surgical sponge shown in FIG. 1;
FIG. 4 is a cross sectional view taken along line 4-4 in FIG. 3; and
FIG. 5 is a plan view of another embodiment of the surgical sponge with parts broken away for clarity.
Referring to FIGS. 1 and 2, the preferred embodiment of the surgical sponge of this invention is shown general 1y at 10 and is constructed from a relatively thin strip of nonwoven fibers 11 which have been securely bonded together to prevent delamination or linting of the fibers. Strip 11 is preferably constructed from rayon fibers which have been carded in a well known manner and then needle loomed into sheets, which sheets are then cut into strips of the desired length and width. The rayon fibers are preferably a dull, virgin, 3 denier rayon with a nominal staple length of approximately 1%". This type of material has been manufactured and used for surgical sponges in the past and it has been found that, when bonded with a mixture of starch and polyvinyl alcohol, the strips will retain their integrity and the material has been tested and found to absorb in excess of 25 times its weight in water.
A retrieval thread 12 is bonded to one surface of strip 11 and comprises a flattened portion 13 which has been heat-softened to provide a secure bond between thread 12 and the surface of strip 11. As stated above, surgical sponge 10 is primarily intended for use in very delicate surgical procedures and the operating field is considerably smaller in this type of operation than is normally found in more massive surgery. For this reason, the relatively small, thin sponges are used and a means must be provided in association with these sponges for retrieving them after they have been applied to a wound site and have absorbed a considerable amount of body fluid. Retrieval thread 12 has been provided for this purpose and the bond between the thread and the surface of strip 11 is, therefore, very important. The length of thread 12 is not critical so long as it can be placed at a suflicient distance outside the wound to be recognizable and easily handled by the surgeon and his assistants.
In addition to retrieval thread 12, a pair of bands 14 and 15 composed of radiopaque material is also securely bonded to the surface of strip 11. Although two bands of radiopaque material are illustrated in the preferred embodiment of this invention, it will be appreciated that only one band may be desirable for exceptionally small surgical sponges and two or more may be utilized in larger sponges. Although numerous radiopaque materials may be usable with this invention it has been found that vinyl with barium sulfate dispersed therein is very effective and forms a very secure bond with the surface of strip 11.
The preferred method for manufacturing the surgical sponge of the present invention is an important part of the invention and will now be described in detail. Referring to FIG. 3, the procedure for heat-softening the retrieval thread 12 and the radiopaque bands 14 and 15 is schematically illustrated. In order to avoid the necessity of utilizing additional materials, such as, adhesives, and in order to eliminate the deleterious effects of the application of heat to obtain the necessary bond between the retrieval thread 12, bands 14 and 15 and the surface of strip 11, an ultrasonic welding device has been adopted. This device is specifically described in U.S. Pat. No. 3,440,117 and comprises a radio frequency generator 20, a conductor 21 for transmitting alternating current energy at about kilocycles per second from the generator 20 to a sonic converter unit 22. Sonic converter 22 is fitted with a horn 23 for transferring sonic energy to the thread 12 and bands 14 and 15. The sonic converter 22, generally, is a device which converts electrical energy to mechanical vibration and, to this end, includes one or more piezoelectric discs which vibrate under the influence of alternating current in electrical energy. The vibrations are amplified and appear as longitudinal vibration at the tip of horn 23.
In order to accomplish the simultaneous assembly of all of the elements of the surgical sponge 10, strip 11 is placed upon a support member 24 which is located directly below ultrasonic welding arm 23. Retrieval thread 12 and bands 14 and 15 are then placed upon strip 11 substantially as shown in FIG. 1. Referring to FIG. 4, the lower portion of horn 23 has been specially constructed so that a plurality of ribs 25 extend downwardly therefrom. Ribs 25 are constructed to contact only so much of the material of retrieval thread 12 and bands 14 and 15 as is necessary to sufficiently heat-soften the materials so that they will flow into the upper surface of strip 11 and form a secure bond between the material and the fibers that comprise the surface. As can be seen in FIG. 2, the action of horn 23 on the upper surfaces of thread 12 and bands 14 and 15 substantially flattens these materials and forces them into the upper surface of strip 11 and firmly bonds them to said surface.
In some instances, e.g. where a more flexible surgical sponge is desired, it has been found to be desirable to reduce the area of the bonding interface between strip 11 and retrieval thread 12. The preferred sponge construction for accomplishing this is illustrated in FIG. 5 wherein the sponge 10a comprises a strip 11a having a retrieval thread 12a bonded to the surface thereof. However, unlike the sponge in FIG. 1, the bond occurs only at spaced intervals B along the length of partially flattened portion 13a on thread 1121;. The unbonded areas act as hinges and, thus, provide regions of increased flexibility.
In order to provide this type of bond, ribs 25 on the lower portion of horn 23 (see FIG. 4) may be longitudinally notched so that contact is made between horn 23 and retrieval thread 12a only at the predetermined spaced intervals, thus, creating a bond at only such intervals.
It will thus be apparent that the present invention provides a unique surgical sponge construction that has many advantages over the prior known sponges. By eliminating the need for stitching or utilizing adhesives, a surgical sponge can now be constructed that is completely smooth on one side for application to the wound site. In addition, the radiopaque bands may now be applied at a location different from that of the retrieval thread and thereby provide additional safety in the event that the retrieval thread is accidentally pulled away from the surface of the strip. It will also be apparent from the foregoing specification that the method of manufacturing the surgical sponge of this invention is extremely economical in that all of the parts may be assembled in one operation and no additional materials, such as, adhesives are required in the assembly of the parts.
What is claimed is:
1. The method of making a surgical sponge useful for delicate procedures, comprising the steps of: forming a strip of bonded nonwoven fibers; placing a plastic retrieval thread and a band of radiopaque material into contact with the surface of said strip and heat-softening said thread and said material to cause a portion of said thread and said material to flow into said surface to create a bond therebetween.
2. The method of claim 1 wherein said thread and said radiopaque material are heat-softened by contacting them with an ultrasonic welding born.
3. The method of claim 2 wherein said thread and said radiopaque material are simultaneously contacted by said horn.
4. The method of claim 3 wherein said nonwoven fibers are rayon, said thread is a continuous multifilament of polyester and said radiopaque material is vinyl containing barium sulfate.
5. The method of claim 1 wherein said thread is heatsoftened at spaced intervals.
References Cited UNITED STATES PATENTS 2,972,350 2/1965 Deker l28-296 3,029,818 4/1962 Hirsch et a1. 128-296 3,464,415 9/1969 Brownlee 128-296 EDWARD G. WHITBY, Primary Examiner U.S. Cl. X.R.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US00297583A US3837950A (en) | 1971-02-17 | 1972-10-13 | Surgical sponge |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11618771A | 1971-02-17 | 1971-02-17 | |
US00297583A US3837950A (en) | 1971-02-17 | 1972-10-13 | Surgical sponge |
Publications (1)
Publication Number | Publication Date |
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US3837950A true US3837950A (en) | 1974-09-24 |
Family
ID=26813968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US00297583A Expired - Lifetime US3837950A (en) | 1971-02-17 | 1972-10-13 | Surgical sponge |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3935863A (en) * | 1974-07-19 | 1976-02-03 | Kliger Herbert L | Surgical sponge |
US3965907A (en) * | 1975-01-08 | 1976-06-29 | The Kendall Company | Surgical sponge |
US4205680A (en) * | 1978-01-13 | 1980-06-03 | Work Wear Corporation, Inc. | Radiopaque laparatomy sponge |
US4293355A (en) * | 1978-04-28 | 1981-10-06 | Cabot Corporation | Method for ultrasonically welding plasticized thermoplastic polymeric foam wares |
US5201704A (en) * | 1989-11-07 | 1993-04-13 | Ray Joel W | Method of making and using a hemostatic agent applicator |
US5374246A (en) * | 1989-11-07 | 1994-12-20 | Ray; Joel W. | Method and device for delivering a hemostatic agent to an operating status |
US5465566A (en) * | 1993-06-08 | 1995-11-14 | E. I. Du Pont De Nemours And Company | Alternate twist-plied yarn |
US5979469A (en) * | 1994-10-06 | 1999-11-09 | Xomed Surgical Products, Inc. | Method for rinsing a high density sponge |
US6099952A (en) * | 1998-02-18 | 2000-08-08 | Xomed Surgical Products, Inc. | Medical sponge having mucopolysaccharide coating |
US6130264A (en) * | 1994-10-06 | 2000-10-10 | Xomed Surgical Products, Inc. | Synthetic sponge and surgical spear comprising synthetic sponge |
-
1972
- 1972-10-13 US US00297583A patent/US3837950A/en not_active Expired - Lifetime
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3935863A (en) * | 1974-07-19 | 1976-02-03 | Kliger Herbert L | Surgical sponge |
US3965907A (en) * | 1975-01-08 | 1976-06-29 | The Kendall Company | Surgical sponge |
US4205680A (en) * | 1978-01-13 | 1980-06-03 | Work Wear Corporation, Inc. | Radiopaque laparatomy sponge |
US4293355A (en) * | 1978-04-28 | 1981-10-06 | Cabot Corporation | Method for ultrasonically welding plasticized thermoplastic polymeric foam wares |
US5201704A (en) * | 1989-11-07 | 1993-04-13 | Ray Joel W | Method of making and using a hemostatic agent applicator |
US5374246A (en) * | 1989-11-07 | 1994-12-20 | Ray; Joel W. | Method and device for delivering a hemostatic agent to an operating status |
US5465566A (en) * | 1993-06-08 | 1995-11-14 | E. I. Du Pont De Nemours And Company | Alternate twist-plied yarn |
US5598694A (en) * | 1993-06-08 | 1997-02-04 | E. I. Du Pont De Nemours And Company | Apparatus and method for forming alternate twist-plied yarns and product |
US5979469A (en) * | 1994-10-06 | 1999-11-09 | Xomed Surgical Products, Inc. | Method for rinsing a high density sponge |
US6130264A (en) * | 1994-10-06 | 2000-10-10 | Xomed Surgical Products, Inc. | Synthetic sponge and surgical spear comprising synthetic sponge |
US6267126B1 (en) | 1994-10-06 | 2001-07-31 | Xomed Surgical Products, Inc. | Apparatus for rinsing |
US6099952A (en) * | 1998-02-18 | 2000-08-08 | Xomed Surgical Products, Inc. | Medical sponge having mucopolysaccharide coating |
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