JP2005334252A - Surgical drape - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a surgical drape with a function as an isolation sheet for isolating the genitals of a patient and protecting the genitals from impregnation of disinfection solution or medicinal solution or in-flow of blood, in addition to the intrinsic function as the surgical drape, capable of being used in a surgical operation which requires the approach to the inguinal region of the patient. <P>SOLUTION: The surgical drape comprises a body part made of non-woven fabric and a flap part made of a waterproof plastic film, integrally attached to the body part. The flap part has a contact face to be brought into contact with a protected region of the patient, and an adhesive layer formed in at least part of the contact face. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a surgical drape used to prevent aseptic field contamination in a surgical operation, medical examination, and the like. More specifically, the present invention relates to a genital area particularly in a surgical operation, catheter examination, or the like that requires an approach to the groin. Surgical drape with an isolation flap that can be protected. In the present specification, hereinafter, a surgical operation, a catheter inspection, a treatment and the like that can use the surgical drape of the present invention will be collectively referred to as “surgery”.

  As is well known, when performing a surgical procedure, an approach to the patient's groin is often required. For example, an approach to the patient's groin is required in CABG (coronary artery bypass grafting), artificial blood vessel replacement, catheter examination (angiography), and the like. In such cases, it is very important to isolate the patient's genital area in order to prevent contamination of the sterile field. It is also necessary to protect the genital area from penetration of disinfectant and chemicals used during surgery and blood inflow.

  Conventionally, various types of isolation sheets have been proposed to isolate and protect the patient's genital area during surgery. For example, Patent Document 1 discloses a medical genital cover characterized by making a cap sufficient to cover the genital area using a flexible sheet-like material and pasting a double-sided adhesive tape around the cap. . Patent Document 2 was made to solve this problem of covering the genital area. A sheet of a liquid-absorbing sheet made of a hygroscopic material was combined with a waterproof layer made of plastic or the like on a sheet of bellows. A medical pudendal isolation sheet is disclosed, which is provided with a folding portion that acts as described above. Furthermore, patent document 3 is disclosing the local cover material containing the base | substrate which consists of a fiber fabric or a film, the pad affixed on the single side | surface of a base | substrate, and the adhesive constructed | assembled around the pad.

  However, since the genital isolation sheet disclosed in these patent documents is made of non-woven fabric, gauze, linen, etc., the genital region cannot be protected from penetration of a disinfectant solution or a chemical solution or inflow of liquid. Further, although it is disclosed in Patent Document 2 that a waterproof layer is combined with such a material, it is structurally impossible to completely isolate the shadow.

  On the other hand, a surgical drape that pursues other functions is proposed instead of isolating only the pubic region as described above. For example, U.S. Patent No. 6,057,051 discloses a biped surgical drape designed to expose both feet and protect the pubic area. This surgical drape is characterized in that a small sheet made of a laminate of a film and foam material is attached to the center of a base sheet made of a flexible drape material. However, in the case of this surgical drape, since the small sheet is fixed to the lower abdomen of the patient by the double-sided tape affixed to the edge of the small sheet, the small sheet cannot be stably and reliably fixed to the genital area. Moreover, since a waterproof film is used for the small sheet, the small sheet that should have been fixed may be easily peeled off due to steaming.

Japanese Utility Model Publication No. 2-44734 (Scope of Claim for Utility Model Registration) Utility Model Registration No. 2557399 (Scope of Claim for Utility Model Registration) Japanese Utility Model Publication No. 5-24011 (Scope of Claim for Utility Model Registration) US Pat. No. 4,479,492 (Claims) US Pat. No. 4,596,244 (claims) US Pat. No. 4,520,807 (claim) US Pat. No. 5,816,253 (claims) US Pat. No. 5,988,172 (claims) US Pat. No. 6,176,870 (Claims)

  The object of the present invention can be used in a surgical operation that requires an approach to the groin of a patient, and in addition to the original function as a surgical drape, isolates the patient's genital area and allows penetration of disinfectant and chemical solutions. An object of the present invention is to provide a surgical drape having a function as an isolation sheet for protecting the genital area from blood inflow.

  Another object of the present invention is to provide a surgical drape having an isolation sheet that can completely isolate a patient's pubic area including the buttocks.

  Furthermore, the objective of this invention is providing the surgical drape provided with the isolation sheet | seat which can be fitted to a patient's pubic area and can be fixed reliably and can prevent peeling during a surgery.

  It is still another object of the present invention to provide a surgical drape that can be applied aseptically and easily.

  These and other objects of the present invention will be readily understood from the following detailed description.

The present invention is a surgical drape used by laying under a patient on a bed such as an operating table or examination table,
A main body made of a non-woven sheet;
Waterproofing unit, which is integrally attached to the main body, has a surface to be brought into contact with a patient's protective site, and has an adhesive layer formed at least partially on the contact surface A surgical drape comprising a flap portion made of a plastic film.

  As will be understood from the following detailed description, according to the present invention, it is possible to provide a surgical drape that can be advantageously used in various surgical procedures that require an approach to the patient's groin.

  The surgical drape of the present invention has a function as an isolation sheet that isolates the patient's genital area and protects the genital area from the penetration of disinfectant solution and drug solution and blood inflow, in addition to the original function as a surgical drape. Therefore, it can be used very advantageously in surgery.

  Furthermore, in the surgical drape of the present invention, the patient's pubic area including the buttocks can be completely isolated by the flap. In addition, the flap portion can be fitted to the patient's genital area, and can be securely fixed to prevent it from being peeled off during operation. Furthermore, by making the flap part into a drum shape with the left and right sides recessed, it is possible to follow the curve of the patient's thigh and to further improve the fit to the genital area.

  Furthermore, the flap can be used as an incision drape for surgery by enlarging the flap and extending it to the abdomen of the patient.

  Furthermore, by providing a pad that covers the genital area on the flap, it is possible to prevent trouble and damage of the genital area.

  Furthermore, the surgical drape of the present invention can be easily and aseptically applied to a patient. Further, since it is folded so as to be openable by extending in opposite directions and is aseptically packaged, it can be stored easily and can be used easily and quickly during surgery.

  The surgical drape with a flap-like isolation sheet according to the present invention can be advantageously implemented in various forms. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. It should be understood that the present invention is not limited to the following modes.

  The present inventors paid attention to the usefulness of surgical drapes developed and marketed by 3M in the course of research to solve the above-mentioned problems. For example, a double U-shaped drape of product number 9046 is a surgical drape in which a seat portion laid under both feet of a patient and a flap portion covering the pubic area are integrated. This surgical drape can be easily applied aseptically, and the buttock and pubic area can be isolated by its integral structure. However, since the flap portion is made of a water-absorbing / waterproof nonwoven fabric like the sheet portion, the familiarity of the flap portion is insufficient, and it may be difficult to securely fix the non-flat shadow and the subsequent perineum. Therefore, it has been desired to take measures against penetration of liquid such as disinfectant liquid and chemical liquid from the edge of the flap portion and blood inflow. In addition, since the water-absorbing / waterproof nonwoven fabric does not have water vapor permeability, the adhesive force applied to the flap portion of the patient may decrease due to the patient's perspiration or transpiration during the operation. Therefore, it was necessary to take measures to reduce the adhesive strength.

  The inventors of the present invention have found that the above-described problems can be solved by improving the flap portion, and have completed the present invention. As will be described in detail below, the surgical drape of the present invention is well-familiar with a body part made of a water-absorbing / water-proof nonwoven sheet and a patient's genital part flexibly attached to the body part, and And a flap portion made of a waterproof plastic film with an adhesive applied to the contact surface. In addition, by using a waterproof plastic film having an appropriate water vapor permeability for forming the flap portion, even a non-flat portion can be reliably fixed during the operation. In use, a main body made of a non-woven sheet is laid under the patient's legs, and a flap made of a waterproof film integrated therewith is affixed to the patient's genital area and, if necessary, the lower abdomen. The surgical drape of the present invention can be hung aseptically and easily on the patient, and the pubic area including the buttocks of the patient is effective due to the structure in which the nonwoven fabric sheet and the flap part of the waterproof film are integrated. Can be isolated.

  Here, the use of the surgical drape of the present invention will be described. Various medical fields in which an approach to the patient's groin is required, in other words, there are various requirements for isolating the patient's pubic area or perineal area. The surgical drape of the present invention can be advantageously used in various medical fields. For example, typical operations and examinations to which the surgical drape of the present invention can be applied are not limited to those listed below, but include CABG (Coronary Artery Bypass Graft), TAA (Thoracic Aortic Aneurysm; Artificial angioplasty for thoracic aortic aneurysm (A) (Abdominal aortic aneurysm), surgery such as thrombectomy for ASO (Arteriosclerosis Obliterance), artificial angioplasty, catheterization (angiography) Art). In these operations and examinations, it is very important to isolate the patient's genital area in order to prevent bacterial contamination of the aseptic field. Although it must be fully protected, the surgical drape of the present invention can fully satisfy all of these requirements.

  FIG. 1 is a plan view schematically showing one use example of a surgical drape according to the present invention, and FIG. 2 is a cross-sectional view of a use example of the surgical drape shown in FIG.

  The surgical drape 10 according to the present invention is used by being laid on the operating table 50 under the patient 60, particularly under the lower body of the patient. For simplification of explanation, only the surgical drape 10 is shown in these drawings. However, a surgical drape covering the other part of the patient may be used in combination, or a plurality of surgical drapes may be used in combination. Is common. In addition, although the surgical drape 10 is shown in a state where it is deployed on the operating table 50, it is general that the periphery of the operating drape 10 is hanging from the operating table.

  The surgical drape 10 includes a main body portion 1 and a flap portion 5 that is attached to a predetermined part of the main body portion 1 and functions as a genital isolation sheet. Here, the main body 1 is preferably composed of a non-woven sheet that is sometimes referred to as a water-absorbing / water-proof non-woven sheet in the following, provided with waterproofness on one side and water-absorbing on the other side. The nonwoven fabric sheet is laid on the operating table with its waterproof surface facing downward, that is, facing the operating table 50. Therefore, the water absorption surface of the nonwoven fabric sheet can be brought into contact with the patient 60, and bleeding during the operation, spilled disinfectant, and the like can be absorbed by the nonwoven fabric.

  In the surgical drape 10, a flap portion 5 is attached to the main body portion 1 integrally and flexibly. The flap part 5 is comprised from the plastic film provided with waterproofness. In addition, as can be easily understood from FIG. 2, the flap portion 5 has a surface to be brought into contact with the protection site of the patient 60, typically the pubic region and the perineal region and the heel region adjacent thereto. Further, the contact surface of the flap portion 5 has an adhesive layer formed at least partially, preferably formed on the entire surface of the flap portion. By adopting such a configuration, it is possible to cover and isolate at least the non-flat genital part of the patient 60 with the flap portion 5.

  In the surgical drape of the present invention, the main body can be composed of various water absorbent / waterproof nonwoven sheets. For example, the main body portion can be formed of a water-absorbing nonwoven fabric sheet, and a waterproof coating can be applied to one surface thereof. Moreover, according to another method, a main-body part can be comprised from a water-absorbing nonwoven fabric sheet and the composite sheet of a waterproof plastic sheet. As an example of such a composite film, for example, a composite sheet obtained by laminating a plastic film on a general nonwoven fabric and a composite sheet obtained by laminating a polyethylene film on a spunlace nonwoven fabric can be cited.

A main-body part can be normally used in the form of a rectangular nonwoven fabric sheet. Although the size of the nonwoven fabric sheet used for the main body can be changed in a wide range depending on the use of the surgical drape, etc., it is usually in the range of about 228 cm (width) x about 280 cm (length), Preferably, it is in the range of about 183 cm × about 200 cm. Simultaneously with the size, the basis weight of the nonwoven fabric sheet can be changed within a wide range. For example, the basis weight of the nonwoven fabric sheet is usually in the range of about 30 to 200 g / m ² , and preferably in the range of about 50 to 180 g / m ² .

  Further, in the surgical drape of the present invention, the flap portion attached to the main body portion is made of a waterproof plastic film. Because it has waterproofness, it can effectively prevent the liquid from penetrating into or flowing into the genital area when disinfectant or blood is applied to the flap during surgery. It is. For attaching and fixing the flap part to the main body part, any adhesive tape such as a double-sided adhesive tape may be used. Otherwise, an adhesive is already applied to the plastic film constituting the flap part. If it exists, you may implement using the adhesive.

  Furthermore, it is preferable that the plastic film of the flap portion further has water vapor permeability in addition to waterproofness. If it is water vapor permeable, moisture can evaporate from the film even if the operation is continued for a long time with the flap attached to the genital area, preventing the genital area from becoming stuffy, and preventing the flap from peeling off. This is because the flap portion can be adhered to the genital region stably and reliably for a long time. The plastic film of the flap part preferably has a water vapor transmission rate of at least about 250 g / sq.m / 24H, and preferably has a water vapor transmission rate of at least about 350 g / sq.m / 24H. Is more preferable. If the water vapor permeability is too low, the film tends to peel off due to steaming.

  Furthermore, when using the flap part as a surgical incision drape, it is necessary to make a surgical incision cleanly and reduce the possibility of contamination by pathogens, so that it is applied from the genital area to the abdomen, especially after the incision site. It is important that there is no wrinkle after direct hitting. Also from this aspect, the plastic film of the flap portion is preferably flexible and excellent in flexibility and three-dimensional curved surface followability.

  By the way, the plastic film of a flap part may be transparent or semi-transparent, and may be colored in arbitrary colors. The plastic film is usually used in a colorless or translucent manner. If you want to remove the patient's shame and gain mental stability, it is recommended that you color in blue, tan or any other color to make the pubic area invisible. If necessary, it may be colored in the same or similar color as the nonwoven fabric sheet of the main body.

The plastic film of the flap part can be formed from various polymer materials. In addition, as described above, it is preferable that the film-forming polymer material can evaporate moisture through the film during a long operation. Suitable polymeric materials include, but are not limited to, for example, polyolefins such as low density polyethylene, especially metallocene polyethylene such as “Engage ^™ polyethylene” commercially available from Dow Chemical. Polyurethanes such as polyether polyurethanes (for example, “Estane ^™ thermoplastic polyurethane” commercially available from BF. Goodrich, Cleveland, Ohio), and polyesters such as polyether polyesters (for example, Delaware, Wilmington commercially available from Wilmington resident of Du Pont Co. "Hytrel ^TM polyester elastomer", for example, polyamides such as polyether polyamides (e.g., PA, Philadelphia resident of ELF Atochem, North America, Inc. Commercially available from the company "Pebax ^TM resin").

  In addition, the plastic film is preferably flexible and somewhat elastic to improve conformability when applied to the patient's genital area. For these reasons, the preferred plastic film is a polyurethane, polyether polyester or polyether polyamide film.

More specifically, the plastic film of the flap part is preferably made of, for example, in-size drape (film drape for incision) or transparent dressing (transparent wound dressing). This is because these plastic films are waterproof and fit well with the patient's body shape, have moderate water vapor permeability, and have already been coated with an adhesive. These plastic films can be obtained from 3M Company commercially, As an example, 3M Steri Drape ^{TM (Steri-Drape TM) 2} , Aioban ^TM (Ioban ^TM) Special incise drapes, Tegaderm ^TM (Tegaderm ^TM ) Transparent dressing (adhesive coated film). Indeed, plastic film these adhesive coating, transpiration of the skin (250~500 g / m ^2/24 hr) higher than has moderate water vapor permeability, the film with a thin flexible thicknesses 25μm Furthermore, it has an adequate skin adhesive force sufficient for secure fixation. Although a 25 μm thick polyethylene film with the same thickness may be available, in general, polyethylene film does not have water vapor permeability, so even if the same adhesive as other 3M products is applied, it is during surgery. The skin adhesion may be reduced. Steridrape ^™ 2 and Ioban ^™ are more familiar and have dead stretch properties that enable secure fixation. In particular, Steridrape ^™ 2 is the most suitable material for this application because it can be EOG sterilized as well as gamma sterilized. “Dead stretchability” means that the film does not easily shrink after being stretched, that is, it is easy to maintain the stretched state once stretched, and does not cause floating after being applied to a patient. Is a remarkable property.

  The plastic film of the flap can be used in various thicknesses depending on the use of the surgical drape, etc., but it is usually preferable to use a thickness of less than about 200 μm, more preferably about 6 to 130 μm. And most preferably about 13-52 μm thick.

  Although the flap portion can be used in various shapes and sizes, it is usually used in the form of a rectangular waterproof film piece, as shown in FIG. It is preferable to use in the form. Of course, as long as the desired effect of the present invention can be obtained by this flap portion, the flap portion is suitable in any size and in any shape.

  The flap preferably has a size sufficient to at least cover the patient's genital area. Therefore, the flap portion can be used in various sizes with the minimum size that can cover the shadow. For example, the flap portion can have a width of about 10-150 cm and a length of about 10-150 cm. In addition to using the flap as a pubic isolation sheet, for example, when used as an incision drape during an abdominal incision operation, the flap is enlarged, that is, the patient's genital area It preferably has a size sufficient to cover the abdomen. For reference, the large flap portion 15 indicated by a dotted line in FIG. 1 corresponds to this.

  Here, the details of the surgical drape will be described with reference to FIG. 4 which is an enlarged sectional view taken along the line IV-IV of the surgical drape 1 shown in FIG.

  The flap portion 5 is fixed to the main body portion with an adhesive layer 17 in the region A of the main body portion 1 made of a water absorbent / waterproof nonwoven fabric sheet. The free end of the flap part 5 is freely bendable due to the flexibility of the flap part as shown by the arrows in the figure. The adhesive layer 17 can be formed from a conventional adhesive. Adhesives based on, for example, acrylic adhesives, SEBS (styrene-ethylene-butylene-styrene copolymer), SIS (styrene-isoprene-styrene block copolymer), polyisobutylene, butylene rubber, etc. Agents, rubber-based adhesives, polyurethane-based adhesives, polyvinyl ethyl ether and copolymers or blends thereof. Otherwise, if the adhesive is already applied to the prepared flap, the flap can be fixed to the main body using the adhesive.

  The main body 1 made of a water-absorbing / waterproof nonwoven fabric sheet is composed of a composite sheet of a water-absorbing nonwoven fabric sheet 2 and a waterproof plastic sheet 3 formed on the lower surface thereof, as shown in the figure. Further, one end of the main body 1 is preferably folded inward as shown in FIG. This folding structure allows the surgical drape to be cleaned and deployed without touching the patient.

  Furthermore, the flap part 5 consists of the waterproof plastic film 6 which has the surface 5a which should be contact | abutted to a patient's protection part (not shown), as FIG. 3 shows in figure. An adhesive layer 7 is formed on the surface 5a side of the plastic film 6 so as to cover the entire contact surface 5a. In addition, the adhesive layer 7 is provided with a release liner (release paper) for packaging and storing the surgical drape and for preventing it from adhering to other articles or hands of a doctor before using the surgical drape. , Which is also called a release liner or the like). The release liner 8 further includes a long tab 18 for facilitating the peeling operation. The tab 18 may have other forms and sizes as necessary.

  Here, if necessary, the adhesive layer 7 may be partially formed in a predetermined region of the contact surface 5a. That is, the adhesive layer 7 may be partially formed so as to cover the main portion of the flap portion. In FIG. 4, the adhesive layer 7 is formed on the entire surface of the flap portion 5, but the surgical drape may be formed on any main part so as to perform its useful function. For example, the adhesive layer 7 Need not cover the entire width or length of the flap 5. For example, the inclusion of a non-adhesive layer at any edge of the flap 5 will help in removing the surgical drape from the patient. In general, it is preferable to form the adhesive layer 7 on the entire surface of the flap portion 5.

  Although the adhesive layer can be formed using various adhesives, it uses a pressure sensitive adhesive (PSA) that is tacky at room temperature and can adhere strongly to the skin, such as an acrylic pressure sensitive adhesive. Is preferably formed. Good adhesion to the skin surface is important in keeping the surgical area sterile.

Suitable pressure sensitive adhesives for forming the adhesive layer include, but are not limited to, for example, acrylic adhesives, “Kraton ^™ ” or “Kraton ^™ ” polymers (both (Shell Chemical Company, Houston, Texas) based adhesives, rubber based adhesives, polyisobutylene, butylene rubber and the like, polyurethane type adhesives and polyvinyl ethyl ether and copolymers or blends thereof. These adhesives further include antibacterial agents such as iodine, triiodide complexes, lactam-triiodide complexes such as povidone-iodo, chlorhexidine salts such as chlorhexidine gluconate and chlorhexidine acetate, polymer biguanides, hexachlorophene, parachlorometa. Contains fatty acid monoesters such as xylenol (PCMX), triclosan, phenol, lauricidine (glycerol monolaurate), quaternary surfactants, silver salts such as silver, silver chloride, silver oxide and silver, hydrogen peroxide, etc. preferable. These adhesives are disclosed in, for example, the following U.S. patents, and should be referred to together: 4,323,557; 4,931,282; 4,701,509; 732,808; 5,156,911; 5,017,625 and 5,204,110.

  The adhesive layer can be coated with any release liner. The release liner may be smaller or larger than the plastic film constituting the flap portion, but must completely cover the adhesive layer. It is preferable that the release liner has a longer length than the flap part to improve handling, and can be folded together with the flap part so that it can be easily and aseptically hung on the patient's genital area. It is preferable to configure. The release liner can be formed from paper, plastic coated paper, plastic film, woven fabric, nonwoven fabric or knitted fabric, film woven fabric laminate, and the like. The release liner may be hydrophilic and absorb liquid, otherwise it may be hydrophobic and non-hygroscopic.

  The flap of the surgical drape can be modified in various ways within the scope of the present invention. For example, as shown in FIG. 5, the flap portion 5 is made of a rectangular waterproof film, and the portion 16 in contact with the thigh portion can be cut into a substantially semicircular shape. If the flap part 5 is partly cut out as shown in the figure, it is possible to obtain a drum-shaped shape that is dented on both the left and right sides, and as a result, the flap part can follow the curve of the patient's thigh, The flap part easily fits the pubic area or perineal area. In the illustrated example, it has been proposed to cut the left and right sides of the flap portion into a semicircular shape, but other shapes may be cut if necessary.

  Further, as shown in FIG. 6, the flap portion 5 has a size sufficient to cover at least the patient's genital area in a region to be abutted against the patient's protection site (typically, the genital area). It is preferable that a protective pad 9 is further attached. This is because by covering the pubic area with a protective pad, troubles and damage to the genital area that is not shaved can be prevented. The protective pad can be formed from a variety of materials, but typical materials include, for example, non-woven pads, gauze pads, foamed material pads such as porous plastic pads. If necessary, this protective pad may include a layer of a polymer absorber. The shape of the protective pad may be rectangular, or may be other shapes such as a circle and an ellipse. The size of the protective pad may be any size as long as it is smaller than the flap portion and does not adversely affect the function of the protective pad and the handleability of the flap portion.

  As can be understood from the above description, the surgical drape of the present invention can be used by laying the nonwoven fabric sheet of the main body part so that the water-absorbing surface faces the patient, and then lifting the flap part. Then, it can be affixed to the protected site of the patient via the adhesive layer. According to the present invention, this task can be performed very easily and quickly without failure.

The surgical drape of the present invention can be used in the following procedure, for example, with reference to the patient shown in FIG.
First, the patient 60 is laid on its back on the operating table 50 disposed in the operating room. This work is a work generally performed in the operating room.
Next, while lifting the buttocks and both legs of the patient 60 and maintaining the state, the main body 1 of the prepared surgical drape (in a folded state) is deployed and sent to the bottom of the buttocks of the patient 60. At this stage, the flap portion 5 is still in a folded state.
Thereafter, both legs of the patient 60 are opened, the flap portion 5 is pressed against the pubic area while peeling the release liner (not shown), and is applied through the adhesive layer while being careful not to generate wrinkles or air bites. wear. In this way, the operation of laying the surgical drape (main body portion) 1 and the operation of applying the flap portion (separation sheet) 5 to the patient 60 can be completed easily and quickly. The flap portion 5 can be easily hung aseptically and can be securely and stably fixed to a non-flat portion such as a shadow.

  By the way, in order to perform the above operations easily and easily, it is preferable that the surgical drape is provided in a sterilized form for surgery by folding it into an appropriate size and shape, individually packaging it. The surgical drape is particularly preferably folded in a deployable manner by stretching in opposite directions and packaged aseptically.

  Subsequently, the present invention will be described with reference to examples thereof. Needless to say, the present invention is not limited to these examples.

Example 1
In this example, the surgical drape described above with reference to FIG. 3 was produced.
Body part:
Nonwoven sheet flap portion laminated with a waterproof plastic film having a weight per unit of about 60 g / m ² , width 183 cm × length 200 cm:
Stelli Drape ^™ 2 (Steri-Drape2 ^™ ; manufactured by 3M) consisting of a polyester film with a thickness of 25 μm, a width of 20 cm, and a length of 30 cm, and coated with an adhesive on one side

  The release liner was peeled off from one end of the flap portion to expose the adhesive layer, and then the flap portion was attached and fixed to the water-absorbing surface of the main body portion that had been spread through the adhesive layer. The unreleased release liner at the flap was left as it was. The main body part was folded so that the flap part was taken inward. A compactly packaged surgical drape was obtained.

  Next, in order to simulate the use in surgery, the mannequin doll was laid on the bed in place of the subject, and then a surgical drape was inserted under the doll's both feet, and the genital area corresponding to the flap part. Covered with. The flap part could be easily stuck and fixed without causing wrinkles after peeling the release liner from it. Moreover, since this flap part has moderate softness | flexibility, it was able to be stuck in the state fitted to the figure of the doll.

Example 2
Although the method described in Example 1 was repeated, in the case of this example, in order to form a flap portion, instead of “Steldrape ^™ 2”, it was made of a polyester film of the same size, and an adhesive was applied to one side. It was used; (3M Co., Ltd. Ioban ^TM) Aioban ^TM.

  As in the case of Example 1, a surgical drape packaged in a compact manner was obtained. Moreover, when the simulation test which affixes this surgical drape on a mannequin doll was implemented, it was able to be easily affixed and fixed in the state fitted to the body shape of the doll like the case of the said Example 1.

Example 3
The procedure described in Example 1 was repeated. In this example, in order to form a flap portion, instead of “Steldrape ^™ 2”, it was made of a polyurethane film of the same size, and an adhesive was applied to one side. It was used; (3M Co., Ltd. Tegaderm ^TM) Tegaderm ^TM.

As in the case of Example 1, a surgical drape packaged in a compact manner was obtained. Moreover, when the simulation test which affixes this surgical drape on a mannequin doll was implemented, it was able to be easily affixed and fixed in the state fitted to the body shape of the doll like the case of the said Example 1. In the case of actual use, it can be used Tegaderm ^TM as incise drape.

Comparative Example 1
Although the method described in Example 1 was repeated, in this example, for comparison, for the formation of a flap portion, instead of “Steldrape ^™ 2”, the same size, but a commercially available normal Polyethylene (PE) film was used. Moreover, since this polyethylene film does not have an adhesive layer, an acrylic adhesive having the same composition as that used in "Steldrape ^™ 2" was applied on one side to form an adhesive layer.

  As in the case of Example 1, a surgical drape packaged in a compact manner was obtained. In the case of this example, a simulation test in which this surgical drape was attached to a mannequin doll was carried out, and as in the case of Example 1, it could be easily attached to the doll and fixed.

[Evaluation test]
The surgical drapes produced in Examples 1 to 3 and Comparative Example 1 were evaluated with respect to the water vapor transmission rate of the flap, the adhesion to the skin, the dead stretch property, the familiarity with the skin, and the possibility of EOG sterilization. Table 1 below summarizes the evaluation results obtained.

As can be understood from the evaluation results described in Table 1, the flap portions used in Examples 1-3 are higher than transpiration of the skin (250~500 g / m ^2/24 hours), moderate water vapor transmission It was made of a 25 μm thin and flexible polyester or polyurethane film, and had an appropriate skin adhesion for secure fixation. On the other hand, since the same 25 μm-thick polyethylene film used for forming the flap portion in Comparative Example 1 does not have water vapor permeability, the pressure-sensitive adhesive used in Examples 1 to 3 is applied. Even so, there was a possibility that the skin adhesive force was reduced during the operation. In addition, Steri Drape ^™ 2 and Ioban ^™ were more familiar and had dead stretch properties that enabled secure fixation. Furthermore, Stelid Drape ^™ 2 was also considered the most suitable for use as a surgical drape because it can be EOG sterilized.

It is the top view which showed typically the example of 1 use of the surgical drape by this invention. It is sectional drawing of the usage example of the surgical drape shown in FIG. It is the perspective view which showed one preferable form of the surgical drape by this invention. FIG. 4 is a partial cross-sectional view taken along line IV-IV of the surgical drape shown in FIG. 3. FIG. 6 is a perspective view showing another preferred form of surgical drape according to the present invention. FIG. 6 is a perspective view showing yet another preferred form of surgical drape according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Main-body part 2 ... Nonwoven fabric sheet 3 ... Waterproof film 5 ... Flap part 6 ... Waterproof plastic film 7 ... Adhesive layer 8 ... Release liner 8a ... Tab 10 ... Surgical drape 15 ... Long flap part 16 ... Notch part 17 ... Adhesive layer 18 ... Tab 50 ... Operating table 60 ... Patient

Claims (5)

A surgical drape used on the operating table.
A main body made of a non-woven sheet;
Waterproofing unit, which is integrally attached to the main body, has a surface to be brought into contact with a patient's protective site, and has an adhesive layer formed at least partially on the contact surface A surgical drape comprising a flap portion made of a plastic film.   The surgical drape according to claim 1, wherein the flap portion is made of a waterproof film having water vapor permeability.   The surgical drape according to claim 1 or 2, wherein the flap portion has an adhesive layer on the entire surface to be brought into contact with a patient's protection site.   The surgical drape according to any one of claims 1 to 3, wherein the main body portion is made of a water-absorbing nonwoven fabric sheet, and a waterproof coating is applied to one surface thereof.   A protective pad having a size sufficient to cover at least the patient's pubic area is further attached to an area of the flap portion that is to be in contact with the patient's protection site. The surgical drape according to any one of 1 to 4.

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