JP6002189B2 - Position fixing pad - Google Patents

Description

  The present invention relates to a posture fixing pad, and more particularly to a human medical posture fixing pad.

In advanced medical institutions such as university medical departments and general hospitals, introduction of expensive and advanced medical equipment such as CT scans, MRI scans, radiation therapy devices such as heavy particle beams and the like continues. If each medical institution efficiently operates such a medical device, it will greatly contribute to medical cost reduction. However, the actual working time of these medical devices is short, and there are few countermeasures within a predetermined time. The biggest cause is that it takes a lot of time to prepare the patient's posture, and the examination / irradiation is interrupted / failed by the patient's posture movement while the device is in operation.
Also, in general medical institutions, in recent years, the practice of fixing a patient, such as a Da Vinci operation, is increasing. In this case, a medical position fixing pad for fixing the patient is important.

  Such a medical posture fixing pad is (1) friendly to the patient, such as the time required for the patient's posture fixing preparation being short and easy to fix the patient's posture during the examination, and (2) durable. It is required that it can be used repeatedly, and (3) the operation of medical staff is simple.

  A magnetic field strain removing tool used in an MRI apparatus for obtaining a magnetic resonance image by applying a high frequency pulse from an RF coil to a subject as a medical posture fixing pad and reconstructing the collected NMR signals. The strain relief tool is used to disperse and distribute a water-soluble solution in which iron or cobalt-based material is dissolved in the bag body having gas barrier properties and air, and the water-soluble solution uniformly in the bag body. Magnetic field distortion of an MRI apparatus, characterized in that the granular material is a foamed resin comprising a solid or hollow body with a particle size of 0.3 mm to 2 mm, and is a cushion body incorporating the granular material A removal cushion is known (Patent Document 1).

  However, since this medical body position fixing pad has a foamed resin granule sealed inside one bag body, when the patient's weight is applied to the bag body, the granule body inside the bag body is inside the bag body. In this way, the particles move in a direction in which no weight is applied, and the granules are biased. Therefore, the necessary amount of granular material does not exist in a place that supports the most weight-prone part, and “bottom feeling” and “hardness” are easily transmitted to the patient's body. In addition, there is a problem that the time required for preparation for fixing the position of the patient by correcting these “bottom feeling” and “hardness” becomes long. Due to these problems, there is a problem that the posture fixing pad is not friendly to the patient, the preparation time before the measurement becomes long, and the actual working time of the medical devices becomes short.

  On the other hand, two pieces of fabric are formed into a bag shape due to a plurality of connecting portions scattered in an island shape and a closed peripheral portion, and foam having an average particle diameter of 0.1 to 1.0 mm inside the bag shape. A foamed bead filling product is known which is formed by filling beads, and the connecting portion and the peripheral portion are integrated by stitching two pieces of fabric or simultaneously weaving two pieces of fabric (patent) Reference 2).

Japanese Patent No. 5212026 Japanese Patent No. 518496

  The present invention is (1) patient-friendly, such as the time required for preparation of the patient's body posture is short and the patient's body posture can be easily fixed during the examination, and (2) durable and reusable. (3) An object of the present invention is to provide a posture fixing pad that can be easily operated by medical personnel.

The posture fixing pad of the present invention is used for fixing the posture of a patient in a medical device in which a cushion body is built in the gas impermeable bag body, and the whole or part of the body is fixed or examined or performed ,
The gas non-permeable bag body is provided with an adjustment valve penetrating the inside and the outside, and the cushion body is a quilted bag body having two main planes forming an outer skin. The inside of a gas permeable bag body made of a fabric made of woven fabric or knitted fabric having a peripheral portion closed on the entire periphery of the main plane is filled with foam beads, and the fabrics constituting the two main planes are connected to each other. Is a cushion body connected by parts,
The posture fixing pad is used to deaerate the air in the gas impermeable bag through the adjustment valve after determining the position of the patient's posture using the posture fixing pad before deaeration during examination or treatment. As a result of the air in the cushion body being degassed, the cushion body is deformed while maintaining the flatness of the main plane inside the gas impermeable bag body, and is in close contact with the gas impermeable bag body. In addition, by fixing the expanded beads in the cushion body while being deformed, the whole or a part of the patient's body can be fixed at the determined position for examination or treatment. Thereafter, the gas impermeable bag body and the cushion body can recover flexibility by being returned to before deaeration through the adjustment valve .
In particular, the connecting portions are a plurality of connecting portions in an island shape having a predetermined repetition on the two main planes forming the outer skin of the cushion body, or the connecting portions are the two main planes. A plurality of connecting portions linearly exist in the longitudinal direction of the peripheral portion without intersecting each other on the surface.

  The connecting portion of the cushion body and the peripheral portion of the bag body are integrated by sewing of the fabrics constituting the two main planes or by simultaneous sewing of the fabrics constituting the two main planes. And Further, the filled beads are polyolefin composite resin foam particles. In particular, the surface of the expanded beads is lubricated.

Since the body position fixing pad of the present invention is a gas non-permeable bag body containing a gas permeable bag body having a connecting portion filled with beads, the filled foam beads serve as an outer skin of the gas non-permeable bag body. It does n’t move freely. Therefore, “bottom feeling” and “hardness” are not transmitted to the patient before and during use as a posture fixing pad in a medical device.
In addition, since it does not take time to smooth the body beforehand and fix the patient's posture when using the posture fixing pad, the time for idling the medical device and setting the posture fixing pad can be shortened.

It is a perspective view of a posture fixing pad. It is a perspective view of the cushion body which has a shape of a different connection part. It is a figure which shows the filling apparatus of a foam bead. It is a figure which shows the filling process of a foam bead. It is a figure which shows the posture fixing pad with which the cushion body was incorporated.

An example of the posture fixing pad according to the present invention is shown in FIG. FIG. 1 is a perspective view of a posture fixing pad.
The body position fixing pad 1 has a cushion body 3 (indicated by a broken line in FIG. 1) inside a gas impermeable bag body 2. An adjustment valve 4 for adjusting the amount of gas inside the bag body 2 is provided on the surface of the gas impermeable bag body 2.
The gas impermeable bag body 2 is flexible so as to be deformed according to the posture of the patient and gas impermeable to hold the gas inside the bag airtight. The structure of the gas impermeable bag body 2 should just be a shape which can accommodate the cushion body 3 inside. Preferably, it is a shape in which the peripheral part of the bag body having a shape larger than the shape of the cushion body 3 and similar to the cushion body 3 is sealed.

  The fabric forming the bag body 2 is preferably a gas-impermeable resin sheet, and examples of the resin sheet include polyolefins such as polyurethane, polyester, polyvinyl chloride, polyamide, polyethylene, and polypropylene. Further, an ethylene-vinyl alcohol copolymer film, a three-layer laminate film having a polyvinylidene chloride film layer, and a laminate film having an aluminum layer, which have high air impermeability, can also be used.

The cushion body 3 has a closed peripheral portion and is filled with foam beads in the inside of a gas permeable bag body composed of two main planes 3a and 3b made of a woven fabric or a knitted fabric. Are connected by a connecting portion 3c. The two main planes 3a and 3b are formed into a bag shape by a closed peripheral portion 3d. Incidentally, if it is possible to form a bag, the peripheral portion 3d is not always necessary, can be used if Kirti in g-like form having a predetermined thickness.

A plurality of connecting portions 3c exist in an island shape on the surfaces of the two main planes 3a and 3b. This connection part 3c should just be the space | interval which can prevent the movement of the foam bead filled inside, and adjacent connection parts are each arrange | positioned by the space | interval exceeding the outer diameter of the metal pipe mentioned later. . It is preferable that the connection part 3c which exists in an island shape is arranged with a geometric pattern having a predetermined repetition. This arrangement makes it easier to fill the expanded beads using a metal pipe.
The size of each connecting portion 3c itself and the interval between the arrangements can be determined according to the application and function of the cushion body 3.

An example of another cushion body is shown in FIG. FIG. 2 is a perspective view of a cushion body having different connecting portion shapes, and shows a state before filling with foam beads.
The cushion body 3 ′ has a plurality of linearly connected portions 3 ′ c without intersecting each other on the surfaces of the two main planes 3 ′ a and 3 ′ b. By arranging the connecting portions in this way, filling of the expanded beads using the metal pipe becomes easier.

  The peripheral portions 3d and 3'd of the cushion body only have to be closed to such an extent that the filled foam beads are not dissipated when the cushion body is used. It is preferable that the peripheral portion 3d connects the two main planes 3a and 3b, and the peripheral portion 3'd connects the two main planes 3'a and 3'b, respectively, and is reinforced by trimming with a separate cloth. By providing the edging, fraying of the cloth can be prevented.

Two main planes, textile becomes Kirti in g-like bag body, to form the outer skin of the cushion body. Usually, it is formed of a single layer knitted fabric, but it can be formed into a plurality of layers as required. When making a bag body with a knitted fabric, two knitted fabrics can be knitted simultaneously with a circular knitting machine to form a bag body.
The weaving method of the knitted fabric is not particularly limited, and may be any known weaving method such as plain weave or twill weave. In the present invention, a texture that does not dissipate the expanded beads is essential, but preferably has air permeability through which compressed gas can pass when filled with expanded beads, which will be described later.
Further, it is preferable that the entire knitted fabric is a stretchable fabric having elastic recoverability by using polyurethane elastic yarn.

  The two fabrics constituting the two main planes are connected to each other at the peripheral portion and the connecting portion. As a connecting method, the two fabrics are integrated by stitching the two fabrics or simultaneously knitting the two fabrics. The Sewing is formed by overlapping and sewing two pieces of fabric, and simultaneous knitting is a method of forming a connecting portion or the like when forming the fabric.

  The material of the foam beads filled in the cushion body is preferably a thermoplastic resin that can be foamed. Examples of the thermoplastic resin include polystyrene resins, polyolefin resins such as polypropylene resins and polyethylene resins, polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, or polylactic acid, and polycarbonate resins. A single resin or a composite of a plurality of resins, for example, a composite resin of a polystyrene resin and a polyolefin resin can be used.

  The foam beads filled in the cushion body are spherical foam beads having an average particle diameter of 0.1 to 4.0 mm, preferably 1.5 to 3.5 mm. The expansion ratio is 30 to 90 times, preferably 50 to 90 times. When the average particle size is less than 0.1 mm, it tends to dissipate from the fabric, and when it exceeds 4.0 mm, the texture as a quilted product is inferior.

  It is preferable that the surface of the expanded bead is lubricated. By performing the lubricity treatment, the fluidity of the foam beads filled in the cushion body is improved, and a tight feeling can be given when used as a body posture fixing pad. Examples of the lubrication treatment method include a method in which a highly viscous liquid, solid lubricant, or the like is applied to the surface of the foam beads. A method of applying a highly viscous liquid is preferable in terms of work. Examples of the highly viscous liquid include glycerin, polybutene, polyethylene glycol, liquid paraffin, and silicone oil. Examples of the solid lubricant include graphite powder and fluororesin powder. Of these, glycerin is preferred for work. Moreover, a fragrance | flavor, a negative ion generator, a far-infrared powder, etc. can be mix | blended with a foam bead as needed.

The filling ratio of the foam beads is determined by the use and function of the cushion body, the size and number of connecting portions, the material of the fabric, and the like.
The cushion body that can be used in the present invention preferably has a filling ratio determined according to the use of the posture fixing pad.

A method of filling the cushion body with foam beads will be described with reference to FIGS. FIG. 3 shows a filling device, and FIG. 4 shows a filling process.
The filling device 5 includes a hopper 6 for storing the expanded beads, a supply valve 6a for adjusting the supply amount of the expanded beads supplied from the hopper 6, a compressed gas supply pipe 7 for transferring the expanded beads, and the supply amount thereof. It comprises a supply valve 7a for adjusting the pressure, an elastic hose 8 connected to a conductive metal pipe 9 for filling the foamed beads to be transferred into a bag, and a control device 10 for controlling the supply valves 6a and 7a. Has been. The entire filling device including the conductive metal pipe 9 is electrically grounded by the ground 11. Therefore, charging of the foam beads due to inner surface contact in the conductive metal pipe 9 can be prevented.

As shown to Fig.4 (a), in the cloth bag body 30 before filling the inside of a cushion body with a foam bead, the foam bead filling port 31 is provided in a part of cloth bag body. The metal pipe 9 is inserted into the cloth bag body 30 through the foam bead filling port 31.
The metal pipe 9 used for filling the foam beads is preferably cylindrical. Further, the outer diameter is set to be equal to or smaller than the diameter at which the shortest neighbors of the connecting portions formed in the cloth bag body 30 can be inserted. Moreover, if it is below the said diameter, the outer diameter of the metal pipe 9 can be changed according to the magnitude | size of the capacity | capacitance of the cloth bag body 30, and a shape. The shape of the metal pipe 9 is preferably linear, but can be curved according to the shape of the cloth bag 30.
The metal pipe 9 may be made of a conductive material, and is preferably a copper or copper alloy pipe capable of preventing the foam beads from being charged.

As shown in FIG. 4B, the metal pipe 9 inserted into the cloth bag body 30 reaches the deepest portion 32 of the cloth bag body 30. Since the cloth bag body 30 before being filled with the foam beads can be changed into an arbitrary shape, the deepest portion 32 can be easily reached even if the metal pipe 9 is linear.
Thereafter, by adjusting the supply valves 6a and 7a controlled by the control device 10, the foamed beads are sequentially pulled out from the deepest portion 32 of the fabric bag body 30 toward the foamed bead filling port 31 while FIG. From FIG. 4D, the expanded beads 33 are filled. By filling the foam beads 33, the cloth bag 30 has a quilting shape having a predetermined thickness.

  When the compressed air supply valve 7a is opened and the compressed air is supplied to the metal pipe 9 side with the supply valve 6a opened, the hopper 6 side is in a decompressed state, and the foam beads 33 are put into the cloth bag body 30 together with the compressed air. Supplied and filled. The compressed air is easily dissipated from the woven fabric of the fabric bag body 30.

After the filling of the expanded beads 33 is completed, the expanded bead filling port 31 is sewn together as shown in FIG.
Thereafter, the stitched foam bead filling port 31 is folded back inside the bag-like body, and as shown in FIG. 4 (f), stitched along the peripheral portion 3d and then trimmed, so that it is incorporated in the body position fixing pad. The cushion body is completed. Since the cushion body is sealed by sewing after filling the foam bead filling port, it can be sealed without dissipating the foam beads.

  As shown in FIG. 1, a body position fixing pad 1 is obtained by inserting a cushion body 3 filled with foam beads into a gas impermeable bag body 2 and then sealing the gas impermeable bag body 2. It is done. As a method for sealing the gas impermeable bag body 2, methods such as welding and adhesion can be used. An adjustment valve 4 penetrating the inside and the outside of the bag body is provided at an appropriate location of the gas impermeable bag body 2. The adjustment valve 4 is preferably a check air valve. It is also possible to adopt a structure without a check air valve.

FIG. 5 shows a posture fixing pad with a built-in cushion body. FIG. 5A shows a state before deaeration, and FIG. 5B shows a state after deaeration. FIG. 5C is a cross-sectional view taken along the line AA, and FIG. 5D is a cross-sectional view taken along the line BB.
The posture fixing pad 1 in which the quilted cushion body 3 in which the foam beads 33 are housed in the gas permeable bag body is built in the gas non-permeable bag body 2 is flat as a whole even before deaeration, and the patient. It does not take time to fix the position of Further, before degassing, the foam beads 33 can move freely inside the cushion body 3 and the gas-impermeable bag body 2 and the cushion body 3 have flexibility, so that the flatness is maintained according to the posture of the patient. It is possible to deform while.
After the position determination of the patient is completed, when the adjustment valve 4 is opened and the air in the gas impermeable bag 2 is deaerated by a vacuum pump or the like, the gas impermeable bag 2 and the cushion 3 are brought into close contact with each other. Since the foam beads 33 are fixed inside the cushion body 3, the patient's body position is fixed. In particular, in the present invention, since the flatness having regular undulations can be maintained by the built-in quilted cushion body 3, even when the patient or the patient's part is fixed, the “feeling of bottoming out” to the patient. And "hardness" is not transmitted.

  The posture fixing pad of the present invention can be used as a small pad and a large pad. For example, a small pad is used as a fixed pad for fixing a head, an elbow, or a knee or a foot joint when an inspection medical device such as an MRI apparatus or a CT scan apparatus is used for the inspection. The large pad can be used as a body position fixing pad for radiation / heavy particle beam irradiation in which treatment is performed with the entire body fixed, and as a body position fixing pad for da Vinci treatment.

  In particular, since the large pad product of the present invention is used for a long-time treatment, it is often provided as a pad for each individual patient. For example, a treatment requiring 3 to 4 hours may take place with a drop in blood flow, and pressure ulcers may develop during this treatment, but large pad products filled with highly resilient foam beads are Since it does not put a burden, it can contribute to pressure ulcer prevention.

  As described above, the posture fixing pad of the present invention is excellent in realizing flexibility that fits various body shapes and simplicity of negative pressure for fixing a patient during a surgical examination. Here, the negative pressure is a medical term for reducing the pressure and fixing the shape of the pad by reducing the pressure inside the cushion body filled with foam beads.

  The posture fixing pad of the present invention is a cushion mainly used for the body or the like, but is not limited thereto, and can be used for various purposes, for example, mountain climbing, camping pillows, interior decorations. Moreover, it can be used for rugs for household items, mats for patient carriages, cushioning materials filled in gaps between electric appliances and mechanical instruments, and pet treatment in animal hospitals.

  The posture fixing pad of the present invention is a pad for fixing the posture during treatment in a medical institution because “bottom feeling” and “hardness” are not transmitted to a patient before and during use as a posture fixing pad in a medical device Available as

DESCRIPTION OF SYMBOLS 1 Position fixing pad 2 Gas-impermeable bag body 3 Cushion body 4 Control valve 5 Filling device 6 Hopper 7 Compressed gas supply pipe 8 Elastic hose 9 Metal pipe 10 Control device 11 Ground 30 Fabric bag body 31 Foam bead filling port 32 Fabric The deepest part of the bag 33 Foam beads

Claims (6)

A posture fixing pad used for fixing a patient's position in a medical device in which a cushion body is built in a gas impermeable bag body , and all or a part of the body is fixed or examined or performed ,
The gas impermeable bag body is provided with an adjustment valve penetrating the inside and the outside,
The cushion body is a quilted bag body having two main planes that form an outer skin, and has a peripheral portion that is closed around the main plane of the bag body. The cushion body is filled with foam beads inside the gas-permeable bag body, and the fabrics constituting the two main planes are connected by a connecting portion arranged at intervals to prevent the movement of the foam beads ,
The posture fixing pad deaerates the air in the gas impermeable bag through the adjustment valve after the position of the patient's posture is determined using the posture fixing pad before deaeration during the examination or treatment. The air in the cushion body is also degassed by the above, whereby the cushion body is deformed while maintaining the flatness of the main plane inside the gas impermeable bag body, and is in close contact with the gas impermeable bag body. In addition, by fixing the foamed beads while being deformed inside the cushion body, all or a part of the patient's body can be fixed at the determined position for examination or treatment. by returning the de generously through post said control valve, Positions solid and said the gas impermeable bag and the cushion body can be recovered flexibility Pad.   The body position fixing pad according to claim 1, wherein a plurality of the connecting parts are connecting parts in an island shape having a predetermined repetition in the two main planes.   The posture fixing pad according to claim 1, wherein a plurality of the connecting portions are linearly connected in a longitudinal direction of a peripheral portion without intersecting each other on the surfaces of the two main planes.   The connecting portion and the peripheral portion of the bag body are integrated by stitching the fabrics constituting the two main planes or simultaneously sewing the fabrics constituting the two main planes. The posture fixing pad according to any one of claims 1 to 3.   The body posture fixing pad according to any one of claims 1 to 4, wherein the foam beads are polyolefin composite resin foam particles.   6. The body posture fixing pad according to claim 5, wherein a surface of the foamed bead is lubricated.