JP2001252287A - Drape unit and medical drape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drape unit capable of easily forming a drape having an operating field apperture part coinciding with an operating purpose on the spot and a medical drape formed using the drape unit. SOLUTION: A drape unit includes first and second unit sheets 11, 12 which respectively have plane parts having predetermined areas and the outer peripheral end side parts of the first and second unit sheets 11, 12 have first and second notch parts 15, 17 depressed toward the centers of the plane parts. The first and second unit sheets 11, 12 are bonded so that the first and second notch parts 15, 17 are opposed to each other to form the drape having the aperture part 20 surrounded by the depressed parts of the outer peripheral end side parts of the first and second unit sheets.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a drape unit for forming a drape (cloth) particularly suitable for medical use, and a medical drape formed using the drape unit.

[0002]

2. Description of the Related Art A medical drape, for example, covers a patient's body during surgery, secures a sterile field, and effluent body fluid (blood, etc.) from the patient's body, surgical water and a drug aqueous solution are sources of contamination. It is used to keep the operative field clean. For this reason, medical drapes usually have a flat surface of a predetermined area, are formed from a sterilized flexible sheet, and are used so as to cover the patient's body with the flat surface. In such a medical drape, an opening (operative field opening) for exposing only the patient's operative field and the vicinity of the operative field is usually provided in the sheet.

[0003] For example, Japanese Utility Model Laid-Open No. Sho 60-177819 discloses a single sheet having a predetermined area.
A medical drape having a structure in which an opening having a certain shape and size is provided at an arbitrary position of the sheet is disclosed.
There is also a drape in which a U-shaped notch is provided on the outer peripheral edge of the seat, not the surgical field opening. This is to cover the patient's body by fitting the thigh and the crown to the U-shaped notch, and the U-shaped notch does not form an operation field opening.

[0004]

The conventional drape with an opening has a shape and a size that are suitable for the purpose of surgery, that is, optimal for the size of the patient's body, the shape and size of the surgical field, and the like. It was virtually impossible to provide a drape with openings. For this reason, several types of drapes having different shapes and dimensions of the opening of the surgical field are stocked, and a drape having an opening with a shape and dimensions relatively close to the intended one is selected and used at the time of surgery.
Then, in order to meet the purpose of the operation, the surgeon must cut and widen the opening on the spot, or cover the part of the opening with another sterile sheet piece etc. There were things.

However, in such an emergency response,
It was troublesome to make an opening that matched the purpose.
For example, the seat of the drape, around the opening,
When an adhesive portion for fixing the sheet is provided, the cutting operation is often not easy. Therefore,
Many drapes of various sizes had to be prepared. Therefore, an improvement in a drape with an opening has been strongly desired.

[0006] That is, an object of the present invention is to provide a drape unit capable of easily producing a drape having an operation field opening portion suitable for a surgical purpose on site, and a medical drape formed using the drape unit. To provide.

[0007]

According to the present invention, the first unit sheet and the second unit sheet each include a first unit sheet and a second unit sheet each having a plane portion having a predetermined area, and each of the first unit sheet and the second unit sheet includes: A drape unit comprising a first notch portion and a second notch portion in which at least one of outer peripheral edge portions of the flat portion is recessed toward the center of the flat portion, wherein the first unit sheet And the second unit sheet,
The first cutout portion and the second cutout portion are joined to face each other to form a drape having an opening surrounded by a concave portion of each of the outer peripheral edge portions. A drape unit is provided.

[0008] In the present invention, it is preferable that at least one of the first unit sheet and the second unit sheet includes a joining member arranged along an outer peripheral edge defining the cutout portion. According to the present invention,
A medical drape comprising a joint drape formed using the above drape unit and having an opening formed by joining the first unit sheet and the second unit sheet as a surgical field opening is provided. Is done.

[0009]

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to these embodiments. FIG. 1 is a perspective view showing one embodiment of a drape unit according to the present invention. As shown in FIG. 1, the drape unit 10 is configured to include at least two unit sheets, a first unit sheet 11 and a second unit sheet 12, each having a plane portion having a predetermined area. The first unit sheet 11 includes an outer peripheral edge 1 of the flat portion.
At least one of 4a, 14b, 14c, and 14d, in this embodiment, a first cutout portion 15 is a portion in which the outer peripheral edge portion 14a is recessed toward the center of the plane portion. The second unit sheet 12 is also the first unit sheet 1
1, the outer peripheral edge portions 16a, 16b of the flat portion,
At least one of 16c and 16d, in the case of this embodiment, the outer peripheral edge 16c has a second notch 17 which is a concave portion toward the center of the plane portion.

According to the drape unit of the present invention, the first and second unit sheets 11 and 12 are used to combine the first notch 15 and the second notch 17 to have the opening 20. In the same manner to form the drape 1. Therefore, by using the joint drape 1 formed in this manner as a medical drape or as a component of the medical drape, an operation field opening portion that matches the purpose of surgery can be taken without taking time and effort.
It can be easily made on the spot.

The medical drape formed from the drape unit of the present invention is the same as the second drape of the first unit sheet 11.
By appropriately changing the joining position with respect to the unit sheet 12, the opening area and the shape of the operative field opening can be easily changed on the spot. Furthermore, in the drape unit of the present invention, it is not necessary to stock a relatively large number of types of drapes having different shapes and dimensions of the operative field opening as in the related art. Therefore, the number of items (types) to be prepared can be reduced as much as possible, and the economy can be improved.

Further, the number of unit sheets included in the drape unit is not limited to two, and may be three or more. For example,
Prepare three unit sheets (unit sheet A, unit sheet B, and unit sheet C) in which the size or shape of the notch portion, or both the size and shape are different, and change the combination of the three unit sheets. In this way (A and A, A and B, A and C, B and B, B and C, or C and C), the degree of freedom of the size and shape of the opening that can be formed can be increased.

Next, the details of the materials and dimensions constituting the drape unit of the present invention will be described below. (Divide sheet) The drape unit of the present invention usually includes a first unit sheet and a second unit sheet each having a flat portion having a predetermined area.
And a unit sheet. As described above, the first unit sheet and the second unit sheet are usually joined by a joining member (for example, an adhesive tape or a hook-and-loop fastener) with the first notch and the second notch facing each other. . This facilitates formation of a drape having an opening surrounded by a portion (a whole or a part thereof) defining a notch formed in the outer peripheral edge of the first and second unit sheets. it can.

A preferred example of the drape unit according to the present invention will be described in detail with reference to FIG. As shown in FIG. 1, both the first and second unit sheets 11, 12
It is formed from a sheet material having a substantially square plane portion. The first unit sheet 11 has a shape similar to a half-wavelength portion of a sine wave, in which one side 14a of an outer peripheral edge 14a, 14b, 14c, 14d, which is one side of a square as a plane portion, is recessed toward the center of the plane portion. A first notch 15 defined by a curved line. Such a notch portion can be formed by first preparing a substantially square sheet material and cutting out a part thereof by a machine such as a cutting device. That is, even if the sheet member is made of a material that is difficult to cut by hand using scissors or the like, the cutting operation is easy with a machine.

On the other hand, the second unit sheet 12 has outer peripheral edge portions 16a, 16b, 16
c, 16d, a second side defined by a substantially rectangular three-sided portion formed by recessing one side 16c toward the center of the plane portion.
It has a notch 17. Such a notch can also be formed by cutting out a part of the sheet material in the same manner as the first unit sheet.

The first unit sheet 11 has a shape obtained by cutting out a substantially central portion of one side of a quadrilateral serving as a flat portion, and is located on both sides (both sides) in a direction along the one side of the flat portion quadrilateral.
Has two overhang portions 18a and 18b. Overhang 18
a and 18b are constituted by a part of the sheet material. Similarly, the second unit sheet 12 also has two overhanging portions 1 on both sides in the direction along the one side of the planar portion square.
9a and 19b.

In the second unit sheet 12, for example, as shown in FIG. 2A, one of the protruding portions 19 a and 19 b is arranged along three substantially rectangular sides of the second notch 17. Adhesive tape on the surface (for example, surface)
Fixed as 2. Such an adhesive tape is preferably a double-sided adhesive tape, and is adhered to a predetermined position by one adhesive surface. On the other hand, it is preferable that the other adhesive surface is protected by a liner, and the liner is removed when it is joined to the first unit sheet 11. In the above description, the adhesive tape may be fixed to the first unit sheet 11, or may be fixed to both the first unit sheet 11 and the second unit sheet 12. The details of the joining member will be described later.

In order to join two unit sheets, the following is preferably performed. First, the shape and size of the opening to be formed are determined so as to match the purpose of the operation, for example, according to the shape and size of the surgical field. Next, two unit sheets are formed so that an opening having a predetermined shape and size can be formed.
Both cutouts face each other and are arranged such that the two overhangs of both sheets overlap each other. At this time, the adhesive surface of the overhang portion of the second unit sheet 12 (the main surface on the side to which the adhesive tape is fixed) is arranged so as to be able to contact the first unit sheet 11. Normally, the first unit sheet 11 is arranged on the second unit sheet 12 so as to be positioned, that is, the first unit sheet 11 is closer to the body of the patient.

After the two unit sheets are arranged as described above, the size of the opening and the like are finely adjusted. At this time, the first unit sheet 11 not provided with the adhesive tape is moved in the horizontal direction (the direction parallel to the plane) to adjust the degree of overlap (overlapping area and position) of the overhangs. After such fine adjustment, the overhang of the first unit sheet 11 and the second
The protrusions of the unit sheet 12 are pressed against each other to complete the joining of the two unit sheets.

The size of the notch is not particularly limited as long as the effects of the present invention are not impaired. For example, the opening area of the notch is usually 20 to 800 cm ² , preferably 30 to 5 cm ² .
00 cm ² . The shape of the cutout portion may be, for example, a substantially polygonal shape such as a substantially triangular shape, a substantially square shape, a substantially pentagonal shape, a substantially hexagonal shape, a partially cutout shape of a substantially circular shape (for example, a semicircle or an arc), or a substantially elliptical shape. The shape is a cutout (for example, a semi-ellipse or an elliptical arc).

The size of the overhang is not particularly limited as long as the effects of the present invention are not impaired. For example, when two unit sheets are joined, a sufficient joining area can be ensured and an appropriate setting may be made so that an opening having a desired area can be formed. The area of the overhang is usually 20 to 800 cm ² , preferably 30 to 800 cm ² .
500 cm ² .

(Sheet Material) The sheet material is preferably made of a plastic film, cloth (non-woven fabric, woven fabric, etc.), paper or the like which has been subjected to a water-repellent treatment (waterproofing treatment), and preferably has high flexibility. Therefore, its thickness is usually in the range of 30 μm to 1 mm. In order to keep the operation field clean, a sterilized one is preferably used. Plastic,
The polymer used as the material of the fabric fiber is, for example, polyester, polyolefin (polyethylene, polypropylene, etc.), polyurethane, acrylic polymer (including copolymer), fluorine-based polymer (including copolymer), and the like.

Materials used for the water-repellent treatment are, for example, fluorine-containing compounds and silicone-containing compounds. Also, the method of sterilization depends on the material of the sheet material, etc.
Heat sterilization, ultraviolet sterilization, or a method of applying or impregnating an antibacterial agent can be used. In addition, the surface area of the sheet material can be appropriately determined depending on the intended use or surgery,
Usually it is 0.25 to ³ m ² .

(Joining Member) The joining member may be disposed on at least one of the first unit sheet and the second unit sheet. Also, usually, the second unit sheet 12
As an example, as shown in FIG. 2A, the joining member 22 serving as an adhesive tape is formed by a notch 1 on an outer peripheral edge of a flat surface.
7 is fixed to the overhang portions 19a and 19b in a region of a predetermined width along the outer peripheral edge that defines 7. Thus, even if the degree of overlap between the overhangs of the two unit sheets is greatly changed,
Since they can be joined to each other, the degree of freedom in the shape and size of the opening to be formed can be effectively increased.

The joining member may be a coating film (adhesive film) formed by applying an adhesive in addition to the double-sided adhesive tape as described above. It is preferable that the adhesive surface of the adhesive film is protected by a liner until the unit sheets are joined together. As the adhesive, a pressure-sensitive adhesive, a heat-sensitive adhesive, a hot melt adhesive, or the like can be used. The double-sided pressure-sensitive adhesive tape also includes a tape provided with a layer containing a pressure-sensitive adhesive (pressure-sensitive adhesive layer) on both sides of a substrate, and a film pressure-sensitive adhesive comprising only a pressure-sensitive adhesive layer. The adhesive is
Usually, an acrylic adhesive, a silicone adhesive, a synthetic or natural rubber adhesive, or the like can be used. As the substrate, paper, nonwoven fabric, polymer film and the like can be used.

As the pressure-sensitive adhesive, a general medical pressure-sensitive adhesive can be used.

Further, an adhesive tape or an adhesive may be fixed to both the first unit sheet and the second unit sheet.

Further, a hook-and-loop fastener can be used as the joining member. The surface fastener includes a first fastener member and a second fastener member. When the surface fastener is used, the first fastener member and the second fastener member are fixed at predetermined positions of the first and second unit sheets, respectively. For example, a tape-shaped surface fastener member as a joining member is fixed to the overhang along the outer peripheral edge defining each cutout. In order to fix the fastener member to the overhang portion, usually, the above-mentioned double-sided pressure-sensitive adhesive tape or an adhesive is used for bonding.

The surface fastener can be surface-joined by making the joining surfaces of two fastener members face each other and pressing them together. Each fastener member is fixed to a predetermined position of each unit sheet so that the joining surfaces thereof face each other when the first and second unit sheets are joined.

As the hook-and-loop fastener, for example, a first fastener having a hook-shaped joint on a surface of a tape-shaped base material is provided.
A fastener composed of a fastener member and a second fastener member composed of a woven fabric (woven fabric, nonwoven fabric, etc.) can be used.
In such a fastener, when the two fastener members are joined, the hook-like joint is inserted into the hole between the fibers, and the hook and the fibers are engaged to complete the joining.

Further, the fastener disclosed in US Pat. No. 4,959,265 (Japanese Patent No. 2607433) can also be used. In the fastener disclosed herein, the pressure-sensitive adhesive layer is disposed on the joining surface of the base material (the surface on which the protrusions are disposed) of the first fastener member having the plurality of stem-shaped protrusions. When the first fastener member is joined to the second fastener member made of woven fabric, the stem-like projections penetrate between the meshes of the woven fabric, and the adhesive layer comes into contact with the woven fabric (fiber) to complete the joining.

Further, US Pat. No. 4,875,259
(Japanese Patent No. 2693155) and US Pat. No. 5,201,101 (Japanese Application, Japanese Translation of PCT Application No.
No. 506416) can also be used.
Both the first and second fastener members constituting the fastener disclosed herein have tapered projections disposed on the base material. In such a fastener, when the two fastener members are joined, the tapered protrusion of one fastener member is inserted into the space between the plurality of tapered protrusions adjacent to each other of the other fastener member, and the protrusions are connected to each other. By engaging with each other and mechanical action, bonding strength (peeling resistance when peeling off the fastener members) is developed.
Such mechanical action in joining fasteners can be understood as a kind of wedge effect.

The surface fastener as described above is usually formed from a flexible polymer so as not to impair the flexibility of the drape formed from the drape unit. Such polymers include, for example, polyolefins (polyethylene, polypropylene, etc.), polyesters, polyurethanes, acrylic polymers (including copolymers), silicone polymers (including copolymers), and the like.

As a specific example of the fastener that can be suitably used in the present invention, for example, “Trademark: manufactured by 3M Corporation”
Mating surface fasteners ". The size of the joining member is not particularly limited, and is appropriately determined so that the two unit sheets can be easily joined and the joined unit sheets do not separate during use. For example, when using an adhesive tape or a tape-shaped surface fastener member, the width of the tape is usually 1 to 30 mm, preferably 2 to 20 mm.

Further, the joining member may be arranged at a place other than the predetermined width area along the outer peripheral edge defining the cutout. For example, taking the second unit sheet 12 as an example, FIG.
As shown in FIG. 2B or FIG. 2C, the joining member 22 can be disposed on the surface of the overhang portions 19a and 19b including the vicinity of the outer peripheral edge defining the cutout portion 17.

(Aperture) The dimension of the surgical field aperture of the joint drape formed from the drape unit is not particularly limited as long as the effect of the present invention is not impaired. The area of the opening is usually 30 to 800 cm ² , preferably 50 to 500 cm ² . The shape of the opening is, for example, substantially triangular, substantially square,
A substantially polygonal shape such as a substantially pentagonal shape and a substantially hexagonal shape, a substantially circular shape, a substantially elliptical shape, and the like.

[0037]

As described above, according to the present invention,
It is possible to provide a drape unit and a medical drape formed from the drape unit, which can easily produce a drape having an operation field opening portion suitable for an operation purpose on site.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a drape unit according to the present invention.

FIG. 2 shows an example of the shape of each unit sheet.
2A shows a cutout having a substantially square shape, FIG. 2B shows a cutout having a substantially triangular shape, and FIG. 2C shows a cutout having a substantially U-shaped cutout.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Drape, 10 ... Drape unit, 11 ... 1st unit sheet, 12 ... 2nd unit sheet, 14a, 14b, 1
4c, 14d: outer peripheral edge of the first unit sheet, 15: first notch, 16a, 16b, 16c, 16d: outer peripheral edge of the second unit sheet, 17: second notch, 18a,
18b ... overhang, 19a, 19b ... overhang, 20 ... opening.

Claims (3)

[Claims] A first portion having a plane portion having a predetermined area;
A unit sheet and a second unit sheet, wherein each of the first unit sheet and the second unit sheet is
A drape unit comprising a first cutout portion and a second cutout portion in which at least one of the outer peripheral edge portions of the flat portion is recessed toward the center of the flat portion, wherein the first unit sheet And the second unit sheet are joined with the first notch and the second notch facing each other to form a drape having an opening surrounded by a concave portion of each outer peripheral edge. A drape unit characterized in that: 2. The drape unit according to claim 1, wherein at least one of the first unit sheet and the second unit sheet includes a joining member arranged along an outer peripheral edge defining the cutout. . 3. A joint drape formed by using the drape unit according to claim 1, wherein an opening formed by joining the first unit sheet and the second unit sheet is provided as an operation field opening. Characteristic medical drape.