JP3170814U - Hip joint headball package - Google Patents

Abstract

To provide a package for an artificial hip joint headball that allows the contained headball to be easily seen from the outside, and prevents displacement even if the headballs have different sizes, thereby preventing damage. . An inner container made of a translucent material and having an opening 22 through which a femoral ball of an artificial hip joint can pass; and an opening made of a translucent material through which the inner container can pass; An outer container 25 in which the inner container 23 is accommodated and a first sheet 26 made of a translucent material and laid in the inner container 23 are provided. Further, the second sheet 27 is made of a translucent material and covers the skull 21 placed on the first sheet 26, the outer lid 28 closing the opening 24 of the outer container 25, and the opening 22 of the inner container 23. The inner lid body 29 is closed and the opening 22 of the inner container 23 is closed by the inner lid body 29, and is pressed through the second sheet 27 covering the bony head ball 21 accommodated in the inner container 23. The holding member 30 constitutes a package. [Selection] Figure 1

Description

  The present invention relates to a femoral head package for receiving a femoral head ball of an artificial hip joint.

  Generally, an artificial hip joint is fitted to a stem member that is inserted and fixed in the bone marrow cavity of the femur and a neck portion that is provided at the end of the stem member opposite to the portion that is inserted into the bone marrow cavity. It consists of a spherical headball and a socket member that fits into the acetabulum. These parts are individually housed in a package and brought into the operating room, and each package is opened by an assistant and provided to the surgeon by the assistant.

  Such a package is required to have a function of preserving the contained object for a long period of time and a function of protecting it during transportation. In order to preserve for a long time, it is necessary to maintain the inside of the package in a sterile state for a predetermined period. The maintenance of the sterilized state can be realized by using a material that can withstand the sterilization process and that can prevent the entry of bacterial cells from the outside. In addition, the package has a structure that suppresses displacement of the object to be stored due to vibration during transportation, and a material that does not cause damage such as wear to the object due to contact between the package and the object to be stored is used.

  For example, Patent Document 1 discloses a package that can stably support a stem, and Patent Document 2 stores a medical device for living body implantation, which is a packaged object, without deterioration over a long period of time. A packaging that can be used is disclosed. In addition, as a conventional package for packaging the bone head ball, a package conceptually shown as a sectional view in FIG. 6 is used.

Utility Model Registration No. 3149688 Utility Model Registration No. 3166576

  As shown in FIG. 6, the package 10 for housing the skull head ball contains the skull ball 15 and the pressing lid 13 in the inner container 12 and is sealed by the non-woven fabric sheet 14 ′ made of synthetic resin, and the outer container 11. Inside, the sealed inner container 12 is accommodated and sealed with a nonwoven fabric sheet 14 made of synthetic resin. The femoral head ball 15 is housed in a fixed state in the inner container 12 by a pressing lid 13.

  A hole 15a for fitting the neck portion of the stem is formed in the femoral head ball 15, and a protrusion is inserted in the bottom portion of the inner container 12 to be inserted into the hole 15a of the femoral head ball to suppress lateral variation. A portion 12a is provided. The presser lid 13 has a substantially spherical recess 13 a so as to follow the outer shape of the bone head ball 15. By the inner container 12 and the pressing lid 13, the positional fluctuations in the horizontal direction and the vertical direction are suppressed in a state in which the bone head ball 15 is housed. The femoral head 15 has a mirror-finished outer surface and needs to be protected from being damaged by coming into contact with the holding lid 13 by vibration during transportation. Therefore, the femoral head ball 15 is accommodated in the inner container 12 in a state of being wrapped in a cotton cloth bag (not shown).

  However, the cotton cloth is a woven cloth of cotton yarn, and a lot of foreign matters are contained between the cotton yarns. Therefore, it is necessary to remove the foreign matters when used. Foreign substances are difficult to remove by ultrasonic cleaning with an aqueous solvent, and must be removed manually using tweezers.

  Further, since the most suitable head ball 15 is used in accordance with the bone shape of the patient and the state of the disease, there are many varieties of products having different materials and sizes. Examples of the material include ceramics, stainless steel, and a high-hardness alloy, and there are 5 to 10 types of sizes from about 22 mm to over 40 mm in diameter.

  As the package 10, a cotton bag and a presser lid 13 must be prepared for each size of the headball 15 in order to realize an optimal accommodation state according to the size of the headball 15. There's a problem.

  Furthermore, a display sticker on which the material and size of the stored head ball 15 are attached to the outer surface of the package 10, for example, the surface of the non-woven fabric sheet 14 made of synthetic resin, It is performed after sealing with a nonwoven fabric sheet. That is, since the headball 15 is wrapped in a cotton cloth bag, there is also a problem that the stored headball 15 cannot be confirmed from the outside when the display sticker is attached.

  The purpose of the present invention is for an artificial hip joint head ball that can easily see the stored head bone from the outside and can prevent displacement and prevent damage even if a head head ball of different size is stored. Is to provide a package.

The present invention comprises an inner container made of a translucent material having an opening through which a hip ball of an artificial hip joint can pass;
An outer container made of a translucent material, having an opening through which the inner container can pass, in which the inner container is accommodated;
A first sheet of translucent material laid in the inner container;
A second sheet made of a translucent material that covers the bony head sphere placed on the first sheet;
An outer lid that closes the opening of the outer container;
An inner lid that closes the opening of the inner container;
A pressing member that presses the bone head ball through the second sheet covering the bone head ball accommodated in the inner container in a state where the opening of the inner container is closed by the inner lid body. It is a package for the artificial hip joint head ball.

  According to the present invention, the first sheet and the second sheet are made of one or a combination of two or more of polyethylene, polyurethane, silicone resin, silicone rubber and polyamide.

  Furthermore, the present invention is characterized in that the second sheet is provided with an annular thin portion centered on the center in the surface direction.

  Furthermore, the present invention is characterized in that the inner lid body and the outer lid body are made of a non-woven fabric that prevents passage of bacteria and allows passage of gas.

  Furthermore, the present invention is characterized in that the inner container has a bottom portion provided with a protrusion that protrudes toward the opening of the inner container.

  According to the present invention, the inner container, the outer container, the first sheet, the second sheet, the outer lid body, the inner lid body, and the pressing member are provided, and at least the inner container, the outer container, the first sheet, and the second sheet are transparent. Since it is made of a light-sensitive material, it is possible to easily visually recognize the headball contained in the package from the outside, and even if the headball of different sizes is used, the displacement of the headball is prevented by the pressing member. By the second sheet, it is possible to prevent the bone head ball from coming into direct contact with the inner container and the pressing member, and to prevent the bone head ball from being damaged due to wear or the like.

It is sectional drawing which shows the package 20 for artificial hip joint head balls of one Embodiment of this invention. It is a disassembled perspective view of the package 20 for artificial hip joint head balls. 4 is an exploded cross-sectional view of a second sheet 27 and a pressing member 30. FIG. It is sectional drawing which shows the package 20a for artificial hip joint head balls of other embodiment of this invention. It is sectional drawing which shows the package 20b for artificial hip joint head balls of other embodiment of this invention. It is sectional drawing which shows the package 10 for artificial hip joint head balls.

  FIG. 1 is a cross-sectional view showing an artificial hip joint head ball package 20 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the hip hip head ball package 20. FIG. 3 shows a second seat 27 and a presser foot. 3 is an exploded cross-sectional view of a member 30. FIG. In FIG. 2, the outer lid body 28 and the inner lid body 29 are omitted.

  The artificial hip joint head ball package 20 of the present embodiment is made of a light-transmitting material, and includes an inner container 23 having an opening 22 through which the hip head ball 21 of the artificial hip joint can pass, and a light-transmitting material. An outer container 25 having a passable opening 24 and containing the inner container 23, a first sheet 26 made of a translucent material, laid in the inner container 23, and made of a translucent material, A second sheet 27 covering the bony head 21 placed on one sheet 26; an outer lid 28 for closing the opening 24 of the outer container 25; an inner lid 29 for closing the opening 22 of the inner container 23; A pressing member 30 that presses through the second sheet 27 that covers the bony ball 21 accommodated in the inner container 23 in a state where the opening 22 of the container 23 is closed by the inner lid body 29. .

  The bone head sphere 21 has a substantially spherical shape made of a metal such as a Co—Cr—Mo alloy such as 26 mm, 28 mm, 32 mm, 36 mm, or 40 mm, or a ceramic such as alumina, zirconia, or alumina-zirconia composite. Is the body. As the translucent material constituting the outer container 25 and the inner container 23, for example, a material having gas impermeability, bacteria impermeability, and translucency, such as polyethylene terephthalate, polycarbonate, and acrylic is used.

  The inner container 23 includes a cylindrical peripheral wall portion 23a that forms a substantially square frustum, a bottom portion 23b that closes one end portion of the peripheral wall portion 23a, and a flange portion that protrudes outward from the other end portion on the opening 22 side of the peripheral wall portion 23a. 23c. The outer container 25 includes a cylindrical peripheral wall portion 25a that forms a substantially square frustum, a bottom portion 25b that closes one end portion of the peripheral wall portion 25a, and a flange that protrudes outward from the other end portion on the opening 24 side of the peripheral wall portion 25a. Part 25c.

  Examples of the gas-impermeable, fungus-impermeable, and translucent material include, for example, at least one vapor-deposited film made of an inorganic oxide and a gas barrier thin film on a base made of a transparent thermoplastic resin. A stacked structure may be used. As a base material made of a transparent thermoplastic resin, polyolefin resins such as polyethylene (PE) and polypropylene (PP); polyethylene terephthalate (PET), polyethylene isophthalate, polyethylene-2,6-naphthalate, polybutylene terephthalate, etc. Polyester resins; polyamide resins; vinyl resins such as polyvinyl alcohol and saponified ethylene-vinyl acetate copolymers; polycarbonate resins; polyimides and the like can be used. These thermoplastic resins may be a homopolymer or a copolymer.

  As the vapor-deposited film made of an inorganic oxide, an amorphous silicon oxide or aluminum oxide vapor-deposited film having excellent transparency is preferable, and the vapor-deposited film is formed by a vacuum vapor deposition method, a sputtering method, an ion plating method, an ion cluster beam, or the like. It is manufactured by the method etc.

  The gas barrier thin film is formed by applying a coating liquid containing an alkoxide and a water-soluble polymer on the vapor deposition film and then drying by heating. The alkoxide contained in the coating solution is hydrolyzed and polycondensed by the sol-gel method to form a chain or three-dimensional dendritic polymer, and further polymerization proceeds by evaporation of the solvent during heating and drying. It will have a high gas barrier property.

  Since the outer lid 28 and the inner lid 29 are sterilized using high-temperature water vapor, EOG, gas plasma, etc. as a container sealing sheet that provides gas permeability and bacteria impermeability, these active ingredients It is comprised from the material which does not permeate | transmit a microbial cell etc. while permeate | transmitting gas (gas) which is. Materials having such characteristics include natural fibers such as cellulosic fibers, synthetic fibers mainly composed of synthetic resin fibers such as polyethylene, polypropylene, polyethylene terephthalate, and nylon, or composite fibers of natural fibers and synthetic fibers. A breathable nonwoven fabric sheet or sterilized paper prepared by the above method is used, and in particular, a nonwoven fabric made of polyethylene fibers can be used, and a commercially available product is DuPont Tyvek (trademark). Although the thickness of the outer cover body 28 and the inner cover body 29 can be suitably selected according to the objective, the range of 50-200 micrometers is preferable.

  The first and second sheets 26 and 27 have flexibility and translucency, for example, one or a combination of polyethylene, polyurethane, silicone resin, silicone rubber and polyamide having a thickness of 1 mm or less. It is preferable that the friction coefficient of the surface on the side in contact with the bone head ball 21 is large.

  The second sheet 27 is provided with an annular thin portion 27a centering on the center in the surface direction. By forming such a thin portion 27a on the second sheet 27, the peripheral portion of the pressing member 30 on the second sheet 30 side is fitted into the annular recess on the thin portion 27a, and the pressing member 30 is caused by vibration or the like. Therefore, the occurrence of the shift of the bone head ball 21 is prevented.

  The artificial hip joint head ball package 20 having such a configuration includes an inner container 23, an outer container 25, a first sheet 26, a second sheet 27, an outer lid body 28, an inner lid body 29, and a pressing member 30. Since at least the inner container 23, the outer container 25, the first sheet 26, and the second sheet 27 are made of a translucent material, the bony head 21 contained in the package can be easily seen from the outside, Even if the head bone 21 is different, the pressing member 30 can prevent the head head ball 21 from being displaced in the inner container 23. In addition, the first and second sheets 26 and 27 can avoid the direct contact of the skull 21 with the inner container 23 and the inner lid 29, thereby preventing the skull 21 from being damaged due to wear or the like. Can be prevented.

  FIG. 4 is a cross-sectional view showing an artificial hip joint head ball package 20a according to another embodiment of the present invention. Note that the same reference numerals are given to portions corresponding to the above-described embodiment. In the artificial hip joint head ball package 20a of the present embodiment, the inner container 23 has a protrusion 40 that protrudes toward the opening of the inner container 23 on the bottom 23b. By providing such a protrusion 40 on the bottom 23 b of the outer container 25, the displacement of the phalange ball 21 in the inner container 23 can be prevented, and damage can be prevented.

  FIG. 5 is a cross-sectional view showing an artificial hip joint head ball package 20b according to still another embodiment of the present invention. The parts corresponding to those in the above-described embodiment shown in FIGS. In the artificial hip joint head ball package 20b of the present embodiment, a substantially truncated cone-shaped recess 50 is formed in the presser member 30. In the present embodiment, instead of the first sheet 26 and the second sheet 27 used in the above-described embodiment shown in FIG. 4, a skull head protection member that is the same material as both the sheets and has the functions of both sheets. 51 is used. The skull head protection member 51 has a cylindrical shape, a bottomed cylindrical shape, or a bag shape, accommodates the skull head ball 21 on the inside, and prevents the inner container 23 and the recess 50 and the skull head ball 51 from directly contacting each other. it can. Displacement of the skull ball 21 can be prevented in the inner container 23. In the present embodiment, such a recess 50 is provided at the bottom of the pressing member 30 and the head ball 21 is supported via the head ball protection member 51, thereby preventing the displacement of the head ball 21 in the inner container 23. Can prevent damage.

  The operating room is divided into a clean field and an unclean field, and only a surgeon who has performed careful disinfection to directly contact the patient can enter the clean field. The surgeons are able to touch the inner container 23 and the skull 21 that are sterilized and are in a clean field, but are not allowed to touch the outer surface of the outer container 25 that may be contaminated with germs. . Conversely, a nurse or the like who assists in surgery in the unclean field can touch the outer surface of the unclean outer container 25, but the sterilized inner container 23 and the cephalic bulb 21 packaged therein are attached. It is not allowed to touch. Note that filthy refers to a state where bacteria are present as in a daily living space, and clean refers to an almost aseptic state.

  The nurses in the unclean field widen the outer container 25 and open it. The doctor in the clean field takes out the inner container 23 through the opening of the opened outer container 25, carries it on a table near the operating table in the clean field, and opens the inner container 23 as necessary. The bone ball 21 packaged therein is taken out and implanted into a living body.

  Therefore, according to the artificial hip joint bone head ball package 20 of the present embodiment, in the movement of the head ball 21 from the unclean field to the clean field during the implantation operation, the clean field operation is performed so that the clean field is not contaminated by bacteria. A surgeon or the like can receive a bony ball 21 hermetically packaged in a clean inner container 23.

20, 20a, 20b Artificial hip joint head ball package 21 Bone head ball 22, 24 Opening 23 Inner container 25 Outer container 26 First sheet 27 Second sheet 28 Outer lid body 29 Inner lid body 30 Pressing member 40 Protruding portion 50 Recessed portion

Claims (5)

An inner container made of a translucent material having an opening through which the hip ball of the hip prosthesis can pass;
An outer container made of a translucent material, having an opening through which the inner container can pass, in which the inner container is accommodated;
A first sheet of translucent material laid in the inner container;
A second sheet made of a translucent material that covers the bony head sphere placed on the first sheet;
An outer lid that closes the opening of the outer container;
An inner lid that closes the opening of the inner container;
A pressing member that presses the bone head ball through the second sheet covering the bone head ball accommodated in the inner container in a state where the opening of the inner container is closed by the inner lid body. A package for artificial hip joint headball.   2. The artificial hip joint head package according to claim 1, wherein the first sheet and the second sheet are made of polyethylene, polyurethane, silicone resin, silicone rubber, and polyamide, or a combination of two or more thereof. .   The artificial hip joint head package according to claim 1 or 2, wherein the second sheet is provided with an annular thin portion centering on a center in a plane direction.   The artificial hip joint head ball package according to any one of claims 1 to 3, wherein the inner lid body and the outer lid body are made of a nonwoven fabric that prevents the passage of bacteria and allows the passage of gas. .   The artificial hip joint head ball package according to any one of claims 1 to 4, wherein the inner container has a bottom portion provided with a protrusion protruding toward the opening of the inner container.