JP2568299Y2 - Medical adhesion prevention sheet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-adhesion sheet for medical use, and in particular, is placed in the abdominal cavity prior to closure of the abdomen during surgery, and can be easily removed from the body without reopening after a certain period of time after surgery. The present invention relates to a medical adhesion prevention sheet that can be removed.

[0002]

2. Description of the Related Art Heretofore, the applicant has developed a medical adhesion preventing sheet, and has made great achievements in preventing organ adhesion after surgery. With respect to the medical adhesion preventing sheet, the use of a string for removal makes it possible to extremely easily remove the sheet after recovery, and has solved many problems.

[0003]

However, at the place where the medical adhesion preventing sheet is mounted, even the circulation of body fluid is blocked between the organs separated by the medical adhesion preventing sheet, and the medical adhesion preventing sheet is provided. There is an inconvenience that the quantitative balance of body fluids on both sides is lost. Also, as another problem left, a catheter tube is used together with a medical adhesion prevention sheet for the purpose of sucking blood or exudate from the wound or the like remaining in the body after surgery to the outside. It was a heavy burden for the patient. Further, the medical adhesion preventing sheet placed in the abdominal cavity may move due to body motion or the like, or may deviate,
It is also desired to prevent such a situation.

[0004]

According to the present invention, there is provided an isolation sheet made of a relatively thin and flexible member, and a withdrawal string attached to a part of the surface of the isolation sheet. A configuration is adopted in which a fluid circulation region is formed at least in part. By placing the anti-adhesion sheet for medical use according to the present invention between organs in the body, adhesion between the organs can be prevented, and the distribution of body fluids on both sides separated by the anti-adhesion sheet for medical use is achieved. It is performed well, and the quantitative balance of the body fluid between the organs separated by the medical adhesion preventing sheet can be appropriately maintained, thereby solving the above-mentioned problem and achieving the object.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the medical adhesion preventing sheet according to the present invention mainly comprises a separating sheet A and a withdrawal string 4. The isolation sheet A is a film sheet formed in a substantially square shape (rectangular, square, etc.), and more specifically, is made of synthetic resin or the like, is extremely thin, has flexibility, and has a human body. A material that has no foreign body reaction to tissues and does not adhere to surrounding organs at all is used, and specifically, medical silicone rubber is used. In the separation sheet A, a liquid flow area 1 for the purpose of flowing a body fluid L such as blood and exudate is formed in at least a part of the separation sheet A.

This liquid flow area 1 has a large number of pores 1a,
1a,... Or mesh-like mesh member 1
It is formed with b finish. That is, the liquid circulation area 1
Indicates a specific area formed by assembling a large number of pores 1a, 1a,... Formed on the surface of the isolation sheet A as shown in FIGS.

As described above, the liquid flow area 1 is
The liquid flow area 1 is formed in at least a part of the separation sheet A, and the liquid flow area 1 is formed in substantially half of the separation sheet A, and the liquid flow area 1 is formed in a place where the withdrawal string 4 is fixed. In some cases, the liquid flow area 1 may be formed on the entire surface of the separation sheet A. Specifically, the separation sheet A is composed of two members, and the pores 1a, 1a,... (See FIGS. 1 and 3) or the mesh members 1b (see FIGS. 4 and 5) are formed. The liquid flow area 1 and the non-flow area 2 are formed into a sheet, and the liquid flow area 1 and the non-flow area 2 are bonded and fixed to each other to form the separation sheet A.

As an example, as shown in FIG.
The two sheets of the liquid circulation area 1 and the non-circulation area 2 are bonded and fixed in the vertical direction such that the substantially upper half of the isolation sheet A is the non-circulation area 2 and the substantially lower half is the liquid circulation area 1. Alternatively, as shown in FIG. 5, a part of the center on the surface of the non-flow area 2 is cut off, and the small liquid flow area 1 is bonded and fixed to the cut portion.

Further, as another embodiment of the separating sheet A, a metal thin plate member is used as a core material, and a non-adhesive treatment is applied to both surfaces of the metal thin plate member to provide an adhesion preventing function. Specifically, there is an example in which a non-adhesive silicone rubber is coated on a thin metal plate member such as titanium. The strength of the separation sheet A is further improved by the tensile strength of the metal sheet member, using the metal sheet member as a core material.

The liquid flow area 1 has fine pores 1a, 1a,
In this embodiment, a relatively large amount of bodily fluid can be distributed on both sides of the separation sheet A, and the liquid distribution region 1 is formed by the mesh member 1b.
In the case of this embodiment, the flow rate can be changed depending on the density of the bodily fluid by the relatively fine mesh.

A liquid flow area 1 is formed in an isolation sheet A composed of a thin metal plate as a core material, and pores 1a, 1a,... 1b is also formed on a thin metal plate. By using a thin metal plate as the core material of the separation sheet A, the mechanical strength and durability of the separation sheet A can be improved. As shown in FIGS. 1 to 3, the separation sheet A has a sub-isolation sheet 3 as necessary.
In many cases, one or a plurality of sheets are fixed. Specifically, the separation sheet A and the auxiliary separation sheet 3 are substantially horizontal with respect to the vertical direction in FIG. Thus, one side of the sub isolation sheet 3 is fixed.

Further, as shown in FIG. 1, one side of the sub-isolating sheet 3 may be fixed in an inclined manner with respect to the vertical direction of the isolating sheet A. Further, as shown in FIG.
One side of the sub-isolation sheet 3 may be fixed along the vertical direction of the isolation sheet A. There are many other embodiments in which the isolation sheet A and the sub isolation sheet 3 are welded according to the body tissue, and the invention is not limited to the shape shown in the drawing.

The withdrawn string 4 is formed in a string shape such as a circular cross section or a flat shape in cross section, and does not have a foreign body reaction to a living body tissue of a human body like the separation sheet A. The material is used and provided on the surface of the separation sheet A. Specifically, most or a part of one end of the extraction string 4 is applied to the separation sheet A or, if necessary, to the sheet-like liquid circulation area 1 by an adhesive that does not cause a foreign body reaction on human tissue. When the separation string 4 is welded to the separation sheet A or when the separation sheet A is formed, the extraction string 4 may be integrally formed at the same time.

As shown in FIG. 10, the withdrawal string 4 is flexible and elastic, has a flexible solid body without a hollow inside, and is placed in the body to prevent adhesion of the medical device according to the present invention. By pulling out the removal string 4 when removing
The medical adhesion prevention sheet is removed from the body.
Further, as shown in FIGS. 1 and 2, the withdrawn string 4 of another embodiment is a flexible hollow tube, and has a structure in which a liquid such as blood or exudate can flow therein. I have. By using the hollow tubular removal cord 4 as described above, the impure body fluid can be released outside the body, or a cleaning solution or medicine can be injected into the body from outside the body.

The cut end of the string 4 is usually formed as a circular cut in a direction perpendicular to the longitudinal direction as shown in FIGS. 6 (a) and 6 (b). It is formed in the shape of a long hole along the longitudinal direction of the string 4, or as shown in FIG.
As shown in FIG. 5, there is an embodiment in which the cut end of the extraction string 4 is formed in a long hole shape and the peripheral wall of the end is expanded outward.

As shown in FIG. 4, FIG. 5, etc., the end of the withdrawal string 4 fixed to the separation sheet A is
It is preferable to adopt a configuration in which the body fluid flowing in the liquid circulation area 1 is easily sucked at the cut end of the withdrawal string 4, as shown in FIG. 3. In some cases, the cut sheet A-side cut end of No. 4 may be located at two non-flow areas.

As described above, since the end cut is formed as a long hole along the longitudinal direction of the extraction string 4, a large amount of blood or exudate can flow into the extraction string 4. Although not shown, there is also an embodiment in which a hole is drilled at an appropriate position on the circumferential side surface of the hollow extraction cord 4 to absorb blood and exudate from an intermediate portion in the longitudinal direction of the extraction string 4. doing.

As shown in FIGS. 9 (a) and 9 (b), the extraction string 4 of the embodiment having a hollow tubular shape is composed of a plurality of string members. There is an embodiment consisting of two hollow tubes,
The body fluid contaminated in a is released outside the body, and a cleaning liquid or a medicine is injected from the injection part 4b.

Although the discharge section 4a and the injection section 4b of the extraction string 4 have the same tube diameter, the discharge section 4a may have a larger diameter than the injection section 4b. Since the withdrawal string 4 is composed of two discharge portions 4a and injection portions 4b, the discharge port of the impure body fluid and the input ports of the medicine and the cleaning liquid can be separated.

Next, the separation sheet A (see FIG. 4),
Alternatively, a weight member 5 may be attached to the sub-isolation sheet 3 (see FIG. 3), and the weight member 5 may be a button-shaped member as shown in FIG. As shown in FIG. 8, a string-shaped member may be used, and the weight member 5 has a relatively high specific gravity. In the embodiment in which the weight member 5 is formed in a button shape, the weight member 5 can be attached to the body in an extremely stable state, and in the case of a string shape, the medical adhesion preventing sheet can be taken out of the patient's wound when taken out of the body. P can be avoided.

The weight member 5 has a relatively high specific gravity. In practice, it is sufficient that the weight member 5 has a relatively high specific gravity. The weight member 5 is used to maintain a stable attachment state in the body when the medical adhesion preventing sheet is worn in the body, and the position of the medical adhesion preventing sheet is shifted due to the body movement of the patient. Can be prevented.

As shown in FIG. 1 and FIG. 6, the isolation sheet A has thick portions 6, 6, 6, 6, 6, 6.
... are provided. The thick portion 6 may be formed by the same member as the separation sheet A, or may be formed by a mesh-like member.

Next, the operation of the embodiment will be described.
As shown in FIG. 12, first, in the abdominal cavity opened after surgery,
The medical adhesion preventive sheet of the present invention is inserted and placed between the organs at risk of adhesion or between the organ and the skin, and the thickening portions 6, 6,. Then, the binding thread 7 is fixed to the skin via the abdominal wall and fixed in the abdominal cavity.

Next, as shown in FIG. 13 (a), one end of the extraction string 4 provided on the separation sheet A is exposed outside the body and the abdomen is closed. When there is no danger of adhesion, as shown in FIG. 13B, when the withdrawal string 4 is pulled out of the body, the separation sheet A can be simultaneously withdrawn from the body.

[0026]

According to the present invention, firstly, it is possible to maintain a good quantitative balance of the body fluid at the place where the medical adhesion preventing sheet of the present invention is attached to the body, and secondly to reduce the burden on the patient. Thirdly, various effects such as a very simple structure can be obtained.

These effects will be described in detail. In the separator sheet A, the liquid circulation region 1 formed by the pores 1a, 1a,. Attach the anti-adhesion sheet for medical use to prevent adhesion between organs to prevent adhesion between organs, and to prevent adhesion between organs. This can be performed by the region 1, and the quantitative balance of the bodily fluids on both surfaces of the separation sheet A can be favorably maintained (see FIG. 11).

Furthermore, due to the presence of the withdrawn string 4, body fluids such as impure blood and exudate in the body can be released to the outside of the body through the withdrawn string 4. When the adhesion preventing sheet is pulled out of the body, it can be easily pulled out by pulling the pulling string 4.

Next, the medical adhesion preventing sheet of the present invention only forms the liquid flow area 1 on the separation sheet A, and the liquid flow area 1 is formed by a large number of pores 1a, 1a,. Since it is formed by forming, it is not complicated at all in structure, is suitable for mass production, and can be provided at a relatively low price.

Next, since the weight member 5 is provided at an appropriate position on the separation sheet A, the separation sheet A can be maintained in the body in a vertically stable state.
In addition, since the weight member 5 is provided on the sub-isolation sheet 3, the organ can be divided and separated into a plurality of places, and the sub-isolation sheet 3 can be prevented from moving due to body movement.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing a main part of FIG.

FIG. 3 is a perspective view showing a modification of the embodiment in FIG.

FIG. 4 is a front view showing another embodiment of the present invention.

FIG. 5 is a front view showing still another embodiment of the present invention.

6 (a) is a perspective view showing a lumen member portion of the embodiment shown in FIGS. 4 and 5. FIG. FIG. 7B is a cross-sectional view illustrating the lumen member of FIG.

FIG. 7 is a perspective view showing another embodiment of the lumen member.

FIG. 8 is a perspective view showing a main part of an embodiment in which a string-shaped weight member is provided.

FIG. 9 (a) is a perspective view showing a medical adhesion preventing sheet using a withdrawal drawer composed of a discharge section and an injection section. FIG. 10B is a sectional view taken along the line XX of FIG.

FIG. 10 is a cross-sectional view showing a main part of an example using a solid extraction drawer.

FIG. 11 is an explanatory view showing the operation of the present invention.

FIG. 12 is a schematic view showing a state where the sheet according to the present invention is attached to the abdominal cavity.

FIG. 13A is an explanatory view showing an example of a use state of the seat according to the present invention. 13B is an explanatory diagram illustrating a state in which sheets are stored from the use state of FIG.

[Explanation of symbols]

 A Isolation sheet 1. Liquid flow area 1a Pores 1b Mesh 3 Secondary isolation sheet 4 Pull-out string 5 Weight member 6 Body pressure part

 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-48-19087 (JP, A)

Claims (6)

(57) [Scope of request for utility model registration] 1. An isolation sheet A comprising a relatively thin flexible member, and a solid or hollow extraction string 4 attached to a part of the surface of the isolation sheet A, A medical adhesion prevention sheet, wherein a liquid circulation area 1 including a large number of pores or mesh members is formed in at least a part of the sheet A. 2. An isolation sheet A made of a relatively thin flexible member, and a solid or hollow extraction string 4 attached to a part of the surface of the isolation sheet A, 2. The medical adhesion preventing sheet according to claim 1, wherein the liquid circulation area 1 is formed in at least a part of the sheet A, and a sub-isolation sheet 3 is provided at a predetermined position of the isolation sheet A. 3. The medical adhesion preventing sheet according to claim 1, wherein the withdrawn string 4 is formed of a plurality of hollow tubular string members having openings at both ends. 4. The anti-adhesion sheet for medical use according to claim 1, wherein the isolation sheet A is formed of a metal thin plate member whose entire surface is subjected to an anti-adhesion treatment. 5. An isolation sheet A comprising a relatively thin flexible member and a solid or hollow extraction string 4 attached to a part of the surface of the isolation sheet A, At least a part of the sheet A is provided with a liquid flow area 1 composed of a large number of pores or mesh members and the like, and a button-shaped or string-shaped weight member 5 is provided at a predetermined position at an end of the separation sheet A. A medical adhesion preventing sheet characterized by the following: 6. An isolation sheet A comprising a relatively thin flexible member and a solid or hollow extraction string 4 attached to a part of the surface of the isolation sheet A, A liquid pressure area 1 having a large number of pores or a mesh member or the like formed in at least a part of the sheet A, and a button-shaped mesh member attached to a predetermined position at an end of the separation sheet A. An adhesion preventing sheet for medical use, characterized by having a seal.