JP2014226527A - Package of granular artificial bone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a package in which an artificial bone material is prepackaged so that, when having a bone defective part filled with the artificial bone material in a powder or granular form, even a deep or narrow local part of an operating field can be filled with a controlled amount of the material, directly from the package without scattering or falling of the material.SOLUTION: An approximately cylindrical straw-shaped package filled with an artificial bone material in a granular form is provided. An end seal is cut with scissors or the like so as to make a spout for using the material. While a part adjacent to the spout is deformed by compression with fingers in order to prevent the artificial bone material from passing, the spout is applied to an affected part to be injected. The deformed part is then loosened with fingers such that the granular artificial bone material falls to fill the affected part.

Description

The present invention relates to a powder (powder) or granular artificial bone material package.

Artificial bone materials such as HA (hydroxyapatite) and β-TCP (β-tricalcium phosphate) are used to repair the missing bone as a treatment when a defect occurs in the bone due to an accident or illness. It is used in surgery as a therapeutic material.

These surgeries are mainly performed by orthopedic surgeons. Depending on the condition of the diseased part, a bone or bone caused by a defect can be obtained using a small piece of artificial bone material in the form of powder or granules, a sharp spoon, a medical spoon or spoon It is performed to fill in the voids.

However, this supplementary work using sharps or the like is inferior in workability because powder and granules spill or scatter into the surrounding soft tissue and are not sufficiently filled into the target site, which hinders smooth surgery. It was.

During the operation, if artificial bone powder or granules spill and adhere to the surrounding soft tissue where you want to avoid supplementation, remove it with saline to remove it, or adhere to the soft tissue. Therefore, it was necessary to remove each of the grains using tweezers, which increased the operation time.

Although a funnel-shaped jig may be used as a measure for improving the above problems, powder and granules are caught inside the funnel and clogging is likely to occur, resulting in poor workability. HA and β-TCP artificial bones have high hardness and have chamfered surfaces, so they can easily clog the inner surface of the funnel. If you push it forcibly, the inner surface of the funnel will be cut, and the material of the cut funnel will be mixed with the artificial bone material. It is a problem.

Also, when artificial bone material needs to be replenished deep in the surgical field, such as in hip joint surgery, a funnel with a long tip is inevitably used, but powder or granules are filled from the mouth of the funnel. Since there is a time difference between the work and the discharge timing from the tip of the funnel, it has been difficult to accurately control the amount of compensation required by the operator.

Also, in dentistry, there are cases where an artificial bone of granules is filled in the root portion, but the filling portion may be extremely narrow or recessed. In such a case, before surgery, it is mixed in advance with powder or granular artificial bone, water, physiological saline or the like to form a slurry and replenished with a syringe or the like. This takes time. Further, since water is mixed, there is a disadvantage that the filling rate is lowered.

  None

  The problem to be solved was aimed at promptly without scattering or dropping off to the surrounding tissue part when filling the bone defect with powder or granular artificial bone material in surgery requiring artificial bone supplementation. It is impossible to make up for the place.

  In addition, when supplementing powder or granular artificial bone material, it is impossible to perform a supplementing operation to obtain a supplement amount that the surgeon considers to be an appropriate amount.

  In the present invention, when powdered or granulated artificial bone material is to be filled in a bone defect part, it is possible to directly and directly fill the target site from the artificial bone package while controlling the amount of filling. The main feature is to make it possible.

  The artificial bone package according to the present invention is suitable for controlling the amount of supplementation to the target site without scattering or dropping powdered or granular artificial bone material directly into the surrounding tissue directly from the artificial bone package. Therefore, there is an advantage that the operation time can be shortened by these accurate compensation operations.

  FIG. 1 shows an embodiment of the apparatus of the present invention. Reference numeral 1 denotes an entire package including an artificial bone material. There is a cavity for accommodating artificial bone material inside, the main body is made of a substantially transparent material, and the amount stored in the main body can be known from the outside by being transparent.

  First, the configuration will be described. 2 shows the cylindrical part of a straw state. Reference numeral 22 denotes a seal portion. 4 is an encapsulated granular artificial bone material.

  The seal portions 22 at both ends are welded by heat. Except this seal part 22 and its vicinity, it is a straight cylindrical body with the substantially same cross-sectional area as a general straw.

  Next, the usage method will be described. FIG. 2 shows a state in which this package is erected and the tip is cut obliquely with scissors. When the packaging body is raised, the granular artificial bone material 4 moves downward. In this state, the tip is cut, and the vicinity of the front of 21 is pinched with a finger and deformed. By doing so, even if the cut spout 24 is directed downward, the granular artificial bone material 4 acts as a lid as it falls from the spout 24. In this state, as shown in FIG. 3, when the spout 24 is placed on the affected part to be filled, the part that has been pinched and deformed is loosened, and the deformation is restored, the granular artificial bone material 4 is removed from the spout 24. drop down. If it is difficult to drop, you can just use your finger to loosen it.

Other examples

  FIG. 4 shows another embodiment of the apparatus of the present invention. Reference numeral 1 denotes an entire package including an artificial bone material. There is a cavity for storing artificial bone material inside, the main body is made of a substantially transparent material, and the amount stored in the main body can be known from the outside by being transparent.

  First, the configuration will be described. Reference numeral 2 denotes a large cylindrical portion having a large diameter in a straw state. 21 is a bellows made in the large cylindrical portion. Reference numeral 22 denotes a seal portion. Reference numeral 23 denotes a fixed portion. 3 is a small cylindrical part. The small cylindrical portion 3 is slidably accommodated in the large cylindrical portion 2. 31 is a seal part of the small cylindrical part 3, and 32 is a throttle part. 4 is an encapsulated granular artificial bone material.

  The seal portions 22 and 31 are welded by heat. Except for the seal portions 22 and 31, it has the same structure as a straw having a structure that can be expanded and contracted. Therefore, depending on the situation, the small cylindrical part 3 can be pulled out and extended, and the throttle part 32 can be forced into the fixing part 23 and fixed or bent by the bellows 21 depending on the situation.

  Next, the usage method will be described. FIG. 5 shows a state in which this package is erected and the tip is cut obliquely with scissors. When the packaging body is erected, all of the granular artificial bone material 4 moves to the small cylindrical portion 3. In this state, the tip is cut, the small cylindrical portion 3 is pulled out, and the vicinity of the front of the bellows 21 is pinched with a finger and deformed. By doing so, the granular artificial bone material 4 does not fall from the spout 24 even if the cut spout 24 is directed downward. In FIG. 5, the cut portion is the seal portion 23 of the large cylindrical portion 2, but when filling a narrower filling portion, there is a problem even if the seal portion 23 of the small cylindrical portion 3 is cut upward and used. Absent. It will be a little difficult to drop, but you can just use your finger to loosen it.

  FIG. 6 shows the state of filling. By pinching the package with fingers, curving it with the bellows 21, placing the small cylindrical part 3 between the thumb and forefinger, stabilizing it, and loosening the package, granulated artificial The aggregate 4 can be reliably dropped from the cut spout 24 to the targeted filling portion. Moreover, by having an accordion shape so that at least a part of the package can be bent, it can be bent, and the approach to the filling portion is facilitated. Moreover, it can hold | maintain even if it leaves | separates further from a filling part by making it the structure which can be expanded-contracted at least 2 steps | paragraphs with a package, and can hold the extended state.

  In this way, it is possible to change the cross-sectional shape by pressing with a finger with a cylindrical packaging body, so that it can serve as a lid for dropping, pressing and stopping the enclosed artificial aggregate, and packaging By deforming the body with a finger or the like, the granular artificial bone material 4 that is caught inside the package and does not fall can be dropped.

It may be in front of the bellows 21 that the cross-sectional shape is changed by pressing with a finger, but since the granular artificial bone material 4 is easily caught on the bellows 21, if it is transparent, it can be visually confirmed. The granular artificial bone 4 can be dropped by unraveling the part with a finger.
Further, when this bellows is straightened and the bellows part is expanded and contracted with the front and back, the aggregate in the straight part can be pushed out by the aggregate packed in the bellows part.

  The inscribed circle diameter of the package that can accommodate the maximum diameter of the supplied artificial aggregate of granules is preferably 2 mm or more even in the case of powdered artificial aggregate. Below that, the adhesion to the inner wall surface is strong and it is difficult to fall. In this case, considering the thickness that can be deformed with a finger, it is better to make the wall thickness as thin as possible when the inscribed circle diameter is small. As a result, it is appropriate that the inscribed circle diameter of the substantially cylinder is 2 mm or more and the wall thickness is 0.015 mm or more.

  The most frequently used granular artificial bones have a maximum particle size of 8 mm or less. In this case, in consideration of the thickness that can be deformed by a finger, the inscribed circle diameter of the substantially cylinder is about 8.1 mm, which is slightly larger than the maximum particle diameter, and the wall thickness is 0.03 mm or more and 1.5 mm or less. Is more appropriate.

The straw-shaped package of the example is subjected to a process of making a large number of fine holes with laser energy. Since at least a part of the package is made of a breathable structure or material, gas sterilization or sterilization works to the inside of the package, so that a sterilization means can be selected.
Examples of the material of the package include paper, synthetic paper, paper laminated with plastic and metal foil, and the like. In the case of plastic, ABS, polycarbonate, polypropylene, polyethylene, polyethylene terephthalate, polystyrene, polyamide, polylactic acid, vinyl chloride, etc. may be used.

When using, first turn the end to become the spout upward and cut diagonally with scissors, but if the packing rate of the granular artificial bone material in the package is too high, turn the spout downward When the granulated artificial bone material does not fall, the finger must be placed close to the spout. If it does so, the finger which is holding down will get in the way, and approach to a filling part will become difficult. Therefore, by suppressing the filling rate to 70% or less, a guide part of the package is formed between the spout and the finger, and the approach to the filling part is facilitated and the filling becomes easy.

  The substantially cylindrical package that wraps the granular artificial bone with a small particle size may cause problems such as static adhesion of the granular artificial bone to the inner surface of the cylinder due to static electricity, and it will not fall well or the inside will not be visible. There is. In this case, the packaging body may be made of a material that hardly generates static electricity, or made of a material that is easily charged with the same polarity as that of the granular artificial bone, or subjected to antistatic treatment.

  In the embodiment, the seals at both ends of the package are heat-sealed. However, the seals may be bent, a separate sealing material may be attached, or the holes may be filled with a separate sealing material.

FIG. 1 is an explanatory view of the entire package including an artificial bone material. FIG. 2 is a diagram illustrating making a spout by cutting with a scissors. FIG. 3 is a view showing a state in which the affected area is filled with a finger gripping the package and covering the package. FIG. 4 is an explanatory view of the entire package including an artificial bone material in another embodiment. FIG. 5 is a diagram showing making a spout with a scissors. FIG. 6 is a view showing a state in which the package is pinched with a finger and covered, and the rear end is extended and the affected part is filled in order to stabilize the orientation.

Claims (7)

  An artificial bone material comprising a material having a combination of thickness and rigidity that can be changed with a finger and having a cross-sectional shape that is a circle or polygonal substantially cylindrical tube Packaging body.   2. The package of artificial bone material according to claim 1, wherein at least a part is made of a transparent plastic.   2. The package of artificial bone material according to claim 1, wherein the package is made of a plastic having a substantially cylindrical inscribed circle diameter of 2 mm or more and a wall thickness of 0.015 mm or more.   The package of artificial bone material according to claim 1, wherein at least part of the package is made of a breathable structure or material.   It is a package of Claim 1, Comprising: At least one part has a structure which can curve, The package of the artificial bone material characterized by the above-mentioned.   It is a package of Claim 1, Comprising: It has a structure which can be expanded-contracted at least 2 steps | paragraphs and can hold | maintain the extended state, The package of the artificial bone material characterized by the above-mentioned.   The package of artificial bone material according to claim 1, wherein the volume of the artificial bone to be contained is 70% or less with respect to the internal volume of the package.

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