Some embodiments of the present invention relate to a disposable vaginal device, and in particular to a disposable device that supplies a material to a vagina.
A typical vagina is a relatively long and tube-like structure that extends from the cervical os (i.e., entry to the womb) down to the introitus. A vagina will normally emit secretions from glands in the vaginal canal and the interior of the uterus. As an example, mucous can develop during the phase of the menstrual cycle where the endometrium thickens and glands in the endometrium secrete mucous.
Vaginal secretions are typically not harmful but occasionally debris in the form of blood or seminal fluid can accumulate within the vagina. When debris accumulates within the vagina it may be beneficial to be able to instill the vagina with fragrances, cleansers, medications, germicides and/or deodorants (among other items).
One method of instilling an agent into a vagina includes using a product to force a fluid up into the vagina. Some of these types of products include a nozzle that is attached to a bottle filled with a solution (e.g., a cleansing solution). The solution is forced through the nozzle into the vagina under pressure.
One drawback with such products is that bacteria can be forced into, or past, the cervical os when too much pressure is applied. In addition, these types of products can rinse out healthy, normal flora (lactobacillus) along with unwanted materials, such as semen, discharges and bacteria.
There are some vaginal products that are applied to the vagina as films, suppositories, creams and gels (among others) which are later discharged from the body. One drawback with such products is that they are difficult to insert up into the vagina. Another drawback is that such items are discharged from the vagina over time such that a pantiliner is often required for a period of time after the items are applied to the vagina to prevent staining in undergarments.
There are some vaginal products that are designed to mechanically clean a vagina without using pressurized fluid. These types of devices are typically inserted into the vagina and mechanically manipulated in order in clean the vagina. One drawback with using such devices is that they are sometimes difficult to properly insert into the vagina.
There is a need for a vaginal device that is able to apply a material to the vagina without causing the vagina to become dry and irritated. The vaginal device should also be able to deliver materials into the vagina with minimal mess and without using high pressure fluid. It would also be desirable if the device was small, portable, discreet and sanitary while being able to store materials that get applied to the vagina for an extended period of time.
One aspect of the invention relates to a disposable device for supplying a material to a vagina. The disposable device includes a housing, a membrane and a material (e.g., a liquid) that is at least partially enclosed by the membrane. The device further includes a core that is positioned within the housing. The core is movable within the housing to open the membrane.
In some embodiments, the housing includes a first end and a second end and the core includes a handle and a swab that is secured to the handle. The membrane may be ruptured such that the swab absorbs the liquid. There are some embodiments where the membrane may be positioned between the swab and the second end of the housing before the membrane is ruptured and other embodiments where the membrane may be positioned between the swab and the first end of the housing before the membrane is ruptured.
In some embodiments, the core may be movable within the housing between a first position where the swab is at least partially within the housing and a second position where the swab is extended through a second end of the housing. The membrane may be ruptured when the core is at any location between the first position and the second position as long as the swab is still at least partially within the housing.
In some embodiments, the housing includes resilient members that close the second end of the housing. In addition, the membrane may include an elastic member that seals the liquid inside the membrane. The tips of the resilient members engage the elastic member of the membrane such that the elastic member opens as the core moves within the housing to force the resilient members apart. The core may continually be moved relative to the housing until the core forces the material through the elastic band to dispense the material from the membrane to a vagina.
Another aspect of the invention relates to a method of supplying a material to a vagina. The method includes positioning a disposable device near a vagina. As an example, the disposable device may be inserted into the vagina. The disposable device includes a housing and a core that is positioned within the housing. The disposable device further includes a membrane and a material (e.g., a liquid) that is at least partially enclosed by the membrane. The method further includes moving the core relative to the housing to open the membrane.
In some embodiments, moving the core relative to the housing to open the membrane includes rupturing the membrane. It should be noted that moving the core relative to the housing may include (i) moving the core to engage the core with the membrane; or (ii) moving the core to engage the membrane with the housing.
In some embodiments, the core includes a handle and a swab that is secured to the handle such that rupturing the membrane may include rupturing the membrane with the swab. In other embodiments, rupturing the membrane may include rupturing the membrane with the handle.
In some embodiments, the housing includes a first end and a second end and the membrane includes an elastic member that seals the material inside the membrane. The second end of the housing includes resilient members that close the second end of the housing. The tips of the resilient members engage the elastic member of the membrane such that moving the core includes forcing apart the resilient members to open the elastic member. The method may further include engaging a stop on the core with the housing such that the core is prevented from further movement into the housing. The stop may be positioned on the core such that the stop prevents the core from moving far enough into housing to dislodge the membrane from the housing.
The above-mentioned and other features will become more apparent and better understood by reference to the following description of the invention taken in conjunction with the accompanying drawings.
The disposable device of the present invention may provide an efficient, healthy and low-cost way to supply a material to a vagina. The disposable device may also provide an effective way to clean a vagina.
As used herein, “disposable device” includes a device that is disposed of after use and is not intended for reuse. The disposable device described herein may be especially useful to an individual that needs to clean and/or apply a material to their vagina in a variety of situations.
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The membrane 14 may be made from a material that is non-toxic, low cost and hygienic. Some example materials that may be used for the membrane 14 include plastic, amorphous polyalphaolefin, propylene-ethylene co-polymer, ethylene-butene polymer, polyethylene oxide with polyesters and/or polyurethanes, polyethylene oxide with ethylene co-polymer, PVA with ethylene co-polymer, methylmethacrylate with PVA and latex (among other materials).
In some embodiments, the membrane 14 may be a combination of polymers. As an example, some combinations of polymers may include multiple layers with one of the layers being water soluble and another of the layers being water insoluble. It should be noted that embodiments are contemplated where one polymer is a coating while another polymer is a film.
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The housing 12 may be made from a material that is non-toxic, low cost and hygienic. Some example materials that may be used for housing 12 include polyethylene and polypropylene (among other materials). In some embodiments, the housing 12 may be made from a combination of materials.
The width (i.e., outer diameter) of the housing 12 may vary depending on the functional properties that are desired of the disposable device 10. In some embodiments, the housing may be small enough to make it easy for a user to insert the disposable device 10 into the vagina while being wide enough to give the housing 12 sufficient space to store the core 20. As an example, the width of the housing 12 may be between 25 mm and 60 mm.
The wall thickness of the housing 12 should be large enough to provide sufficient rigidity to the disposable device 10 during vaginal insertion. As an example the wall thickness may be between 2 mm and 10 mm. In addition, the length of the housing 12 may be between 60 mm and 150 mm. The relative lengths of the housing 12 and the core 20 may vary depending on the desired properties of the disposable device 10.
The core 40 includes a handle 41 and a swab 44 that is secured to the handle 41. The membrane 34 may be ruptured by the housing 32 and/or the core 40 such that the swab 44 absorbs the liquid 36.
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As used herein, the term “securing” means permanently bonding. Any securing, or bonding, of the handle 41 to the swab 44 may occur at any time during the fabrication of the disposable device 30. Some of the example methods that may be used to bond the swab 44 to the handle 41 include adhesive bonding, thermal bonding and ultrasonic bonding (among others). In the illustrated example embodiment, the handle 41 is embedded in the swab 44.
In some embodiments, the swab 44 has a length that may be between 50 mm and 150 mm and a width that may be between 25 mm and 50 mm. The swab 44 may be constructed of any material that is suitable for insertion into a vagina. Some example materials include cotton, rayon, wood pulp and polymeric substances such as nonwoven fabrics, foam sponges and thermoplastics.
The swab 44 may be designed with any type of surface that enhances the disposable device's cleaning and/or adsorption properties. In addition, the surface of the swab 24 may be textured to facilitate removal of residue and film from the vagina.
In some embodiments, the swab 44 may be composed of a nonwoven fabric. As used herein, “nonwoven fabric” refers to a web or fabric (made partly or wholly of non-cellulose material) that includes individual fibers which are interlaid (randomly or in a pattern) in a knitted fabric. The nonwoven webs may be formed by many processes, including meltblowing, spunbonding and bonded carded. The nonwoven fabrics that are used in the swab 44 may be produced from polymers such as polyethylene or polypropylene.
The swab 44 may also be formed of a nonwoven fabric that is made of an array of interbonded thermoplastic fibers. The fibers may be formed from a wide variety of thermoplastic materials. Some example thermoplastic materials include polyolefins (e.g., polyethylene, polypropylene), polystyrene and polyamides (e.g., nylon). In addition, thermoplastic polymers that are elastomeric may also be used as fibers. Some example elastomeric materials include polyurethanes and block copolymers. It should be noted that blends of any of the foregoing materials may be used to form the fibers. The fibers may also include additives (e.g., wax, pigments, stabilizers and fillers) that are inserted as the fibers are fabricated to achieve one or more desired properties within the fibers.
In some embodiments, the swab 44 may include a cover material (not shown) that is placed on the swab 44 to prevent fiber sloughing and/or improve the wettablilty of the swab 44. There are also cover materials that may provide stain-masking.
As examples, the cover material may store and/or capture debris, cleansers, lubricants, spermicidal agents and medications (among other materials) before and/or during use of the disposable device 30. In addition, the swab 44 and/or cover material may be able to remove certain select materials from a vagina. Some example cover materials include spunbound, spunlace, bonded carded web and apertured film materials. In one example embodiment, the cover material is an apertured film that is formed of a polyolefin which may or may not be combined with a nonwoven fabric.
When a nonwoven fabric is used as the material for the swab 44, the basis weight of the nonwoven fabric may vary depending on the properties that are desired within the swab 44. As an example the basis weight for the nonwoven fabric may be as low as 10 grams per square meter and as high as 300 grams per square meter.
The housing 32 helps to protect the swab 44 from contamination when the core 40 is in the first position. In some embodiments, the second end 47 of the housing 32 includes resilient members 48 that at least partially close the second end 47 of the housing 32. As the core 40 is moved from the first position to the second position, the resilient members 48 are forced apart by the swab 44 (see
The handle 41 may be a variety shapes and sizes. As an example, the cross-section of the handle 41 may take a variety of forms (e.g., circle, square, rectangle and polygon) depending on the properties that are desired within the disposable device 30.
The handle 41 may be made from any material that is suitable for use in the disposable device. The handle 41 should be made from a material that is non-toxic, low cost and hygienic. Some example materials that may be used for handle 41 include paper, cardboard, polyethylene and polypropylene (among other materials). In some embodiments, the handle 41 may be made from a combination of materials.
It should be noted that handle 41 may be solid or hollow. When the handle 41 is hollow, the wall thickness of the handle 41 should be large enough to provide sufficient rigidity to the disposable device 30.
In some embodiments, the handle 41 may have a length that is between 40 mm and 250 mm. The handle 41 and the swab 44 may be sized to keep the handle 41 far enough outside the vagina when the core 40 is in the second position to allow a user to adequately manipulate the swab 44 via the handle 41. In addition, the handle 41 and the swab 44 may be sized to be short enough to allow a user to generate sufficient pressure on the vagina with the swab 44 via the handle 41. The relative lengths of the swab 44, housing 32 and handle 41 may vary depending on the desired properties of the disposable device 30.
The width (i.e., outer diameter) of the handle 41 may be small enough to make it easy for a user to insert the disposable device into the vagina while being wide enough to give the handle 41 sufficient rigidity to properly clean inside the vagina and/or apply a material to the vagina. As an example, the width of the handle 41 may be between 3 mm and 50 mm depending in part on the material that used for the handle 41.
The housing 52 includes a first end 61 and a second end 62. The second end 62 of the housing includes resilient members 57 that close the second end 62 of the housing 54 (
The membrane 54 includes an elastic member 55 that seals the liquid 56 inside the membrane 54.
The core 60 moves relative to the housing 52 until the core 60 forces the liquid 56 through the elastic band 55 (
The membrane 54 and the elastic member 55 may be made from a material that is non-toxic, low cost and hygienic. Some example materials that may be used for the membrane 54 and the elastic member 55 include Latex, spandex, Lycra®, Lycra® with nonwoven material, nitrile, neoprene, butadiene, ethylene-propylene, nylon, acrylic and polyester (among other materials).
In some embodiments, the membrane 54 and/or the elastic member 55 may be made from a combination of materials. In addition, the membrane 54 and the elastic member 55 may be made from the same material or different materials.
In some embodiments of the disposable device 50, the core 60 includes a stop 65. As shown most clearly in
In the example embodiment illustrated in
The disposable devices described herein may further include a locking mechanism that precludes the membrane from being ruptured prematurely. The locking mechanism precludes premature rupturing of the membrane by preventing the core from moving relative to the housing. It should be noted that any type of locking mechanism may be incorporated into the disposable devices described herein, including locking mechanisms which are known now, or developed in the future.
In some embodiments of the disposable device 70, the core 80 includes a stop 85. As shown most clearly in
In any of the disposable devices described or reference herein, the material in the disposable device may be a cleanser. The term “cleanser” refers to any paste, gel, powder, oil, liquid or any other appropriate medium that may be used in vaginal cleansing. Some example cleansers include surfactants such as water-soluble polymers, polysorbates, glycerins, glycol-based surfactants and/or silicone-based surfactants.
The cleanser should not kill significant amounts of lactobacillus while removing unwanted debris during cleaning of the vagina. In addition, the cleanser should not contain ingredients that might lead to dry vaginal mucosal tissue.
In some embodiments, the cleanser may include a moisturizer that helps to maintain a normal hydration level within the vagina. The cleanser may also contain preservatives and other ingredients that do not disrupt the normal flora of the vaginal vault (e.g., sorbic acid, citric acid, methyl paraben and natural preservatives such as grapefruit extract).
It should be noted that the material may include other items besides cleansers such that the disposable devices described herein can be used to apply any number of materials to the vagina. Some example materials include lubricants and other inactive or active ingredients (e.g., a spermicidal agent or a medication). Another example material may be a motility enabler that facilitates sperm motility. The material may also include other items, such as water, salts, vinegars, humectants, scouring powders, thickening agents and aromas (among others).
An example method of supplying a material to a vagina will now be described with reference to
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In other embodiments, moving the core 20 relative to the housing 12 may include engaging the membrane 14 with the housing 12 (
Another example method of supplying a material to a vagina will now be described with reference to
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Another example method of supplying a material to a vagina will now be described with reference to
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The method may further include engaging a stop 65 on the core 60 with the housing 52 such that the core 60 is prevented from further movement into the housing 52 (
Any of the disposable devices shown and/or described herein may used in any of the methods of supplying a material to a vagina described herein. While the invention has been described in detail with respect to specific embodiments, it will be appreciated that there are variations of, and equivalents to these embodiments. Accordingly, the scope of the present invention should be determined by the appended claims and any equivalents thereto.