FLUSHING VAGINAL STENT DEVICES AND RELATED SYSTEMS AND METHODS
20220143300 · 2022-05-12
Inventors
- Lyndsey Calvin (Saint Paul, MN, US)
- Yasheen Brijlal (Minneapolis, MN, US)
- Nicholas Kim (Minneapolis, MN, US)
- Amy Lynn Hoelscher (Maplewood, MN, US)
- Molly KAISSAR (Minneapolis, MN, US)
Cpc classification
A61H1/00
HUMAN NECESSITIES
International classification
Abstract
Flushing vaginal stent devices and related systems and methods for supporting and caring for vagina after genital surgery or radiation therapy are disclosed. In an embodiment, a flushing stent device includes an outer component that includes a proximal end aperture fluidly coupled between a douching tube portion internal to the outer component and a plurality of channels formed in an exterior surface of the flushing vaginal stent device, a middle component including a fenestrated stent structure, an inner component including an expansion and retraction mechanism, and a suturing tab portion coupled with at least the inner component.
Claims
1. A flushing vaginal stent device comprising: an outer component having an outer component proximal end and an outer component distal end, the outer component proximal end comprising a tube portion fluidly coupled with an aperture that is fluidly coupled with a plurality of channels formed in an outer surface of the outer component, and the outer component distal end being open; a middle component having a middle component proximal end with an aperture and a middle component distal end and comprising a fenestrated body structure between the middle component proximal end and the middle component distal end, the middle component configured to be arranged within the outer component such that the aperture of the middle component proximal end and the aperture of the outer component proximal end are arranged together and the outer component proximal end and the middle component proximal end are arranged together and the outer component distal end and the middle component distal end are arranged together; and an interior component having an interior proximal end and an interior distal end, the interior component configured to be arranged within the middle component such that the outer component proximal end, the middle component proximal end, and the interior component proximal end are arranged together and the outer component distal end, the middle component distal end, and the interior component distal end are arranged together.
2. The flushing vaginal stent device of claim 1, wherein the interior component further comprises a mechanism configured to move the interior component between a retracted state and an expanded state.
3. The flushing vaginal stent device of claim 2, further comprising a suturing tab portion having a first end and a second end, the suturing tab portion coupled with the mechanism.
4. The flushing vaginal stent device of claim 3, wherein the suturing tab portion is configured to temporarily couple with at least one of the outer component or the middle component.
5. The flushing vaginal stent device of claim 3, wherein the suturing tab portion is permanently coupled with the mechanism and the mechanism is removably arranged within the interior component such that the suturing tab portion and the mechanism are removed simultaneously without removing the outer component or the middle component.
6. The flushing vaginal stent device of claim 3, the suturing tab portion further comprising a catheter aperture formed in the first end.
7. The flushing vaginal stent device of claim 3, the suturing tab portion further comprising a plurality of suturing tab apertures arranged proximate an edge of the suturing tab portion.
8. The flushing vaginal stent device of claim 1, wherein the internal tube portion extends past the outer component distal end, the middle component distal end, and the interior distal end.
9. The flushing vaginal stent device of claim 8, wherein at least one of a length of each of the outer component, the middle component, and the interior component, or a diameter of each of the outer component, the middle component, and the interior, are configured for placement in a pediatric patient.
10. The flushing vaginal stent device of claim 1, the outer component distal end, the middle component distal end, and the interior distal end further comprising a tapered introital section reducing a diameter of the outer component distal end, a diameter of the middle component distal end, and a diameter the interior distal end.
11. The flushing vaginal stent device of claim 1, wherein each of the plurality of channels radiates away from the aperture and extends partially down sides of the outer component.
12. A kit for vaginal flushing comprising: at least one flushing stent device as claimed in claim 1; and at least one of: instructions for use; sterile packaging; surgical packing material; catheter; douche device; catheter tubing; or suturing material.
13. A method comprising: providing a flushing vaginal stent device comprising: an outer component having an outer component proximal end and an outer component distal end, the outer component proximal end comprising a tube portion fluidly coupled with an aperture that is fluidly coupled with a plurality of channels formed in an outer surface of the outer component, and the outer component distal end being open; a middle component having a middle component proximal end with an aperture and a middle component distal end and comprising a fenestrated body structure between the middle component proximal end and the middle component distal end, the middle component configured to be arranged within the outer component such that the aperture of the middle component proximal end and the aperture of the outer component proximal end are arranged together and the outer component proximal end and the middle component proximal end are arranged together and the outer component distal end and the middle component distal end are arranged together; and an interior component having an interior proximal end and an interior distal end, the interior component configured to be arranged within the middle component such that the outer component proximal end, the middle component proximal end, and the interior component proximal end are arranged together and the outer component distal end, the middle component distal end, and the interior component distal end are arranged together.
14. The method of claim 13, further comprising: providing an expansion and retraction mechanism removably coupled to the interior component to facilitate expanding a volume of the interior component.
15. The method of claim 14, further comprising: facilitating retraction and removal of the expansion and retraction mechanism and the surgical packing material after a post-operative period.
16. The method of claim 13, further comprising: configuring the middle component for: insertion of a douche device into the middle component in situ, coupling of the douche device to the tube portion, and expressing of douche fluid from the douche device, through the tube portion, the proximal end aperture, and into the plurality of channels.
17. The method of claim 16, further comprising configuring the proximal end aperture and the plurality of channels such that douche fluid is provided to an external surface of the outer component.
18. The method of claim 13, further comprising providing a suturing tab portion coupled with at least the interior component to facilitate selective securing of the flushing stent device to the patient by suturing the flushing stent device to the patient.
19. The method of claim 18, further comprising configuring the suturing tab portion for selective removable coupling of a catheter to a notched end of the suturing tab portion.
20. The method of claim 18, wherein the suturing portion further comprises a plurality of suturing tab apertures arranged proximate an edge of the suturing tab portion to facilitate the selective securing of the flushing stent device to a patient by applying sutures to the suturing tab portion.
21. The method of claim 13, further comprising configuring the tube position to extend past the distal end such that the tube portion is accessible via a vaginal canal of the patient when the flushing stent device is in situ above a pelvic floor musculature of the patient.
22. The method of claim 21, further comprising extending the tube portion.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Subject matter hereof may be more completely understood in consideration of the following detailed description of various embodiments in connection with the accompanying figures, in which:
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[0069] While various embodiments are amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the claimed inventions to the particular embodiments described. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the subject matter as defined by the claims.
DETAILED DESCRIPTION OF THE DRAWINGS
[0070] Embodiments relate to flushing vaginal stent devices for supporting, and preventing stenosis and infection of, a vagina after genital surgery or radiation therapy.
[0071] In general throughout this document, and unless otherwise noted, “proximal” is used to refer to an end or portion that is closest to the center of mass (abdomen) of the body (i.e. the device end or portion that in situ is closest to the center of mass of the body), and “distal” is used to refer to an end or portion that is furthest from the center of mass (abdomen) of the body (i.e. device end or portion that in situ is furthest to the center of mass of the body, which is also describing the vaginal opening end).
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[0075] As can be seen in
[0076] Outer component 200 also comprises an introital portion 204, which has a smaller diameter than a shaft portion 205 of outer component 200. In one embodiment, introital portion 204 tapers to approximately three centimeters in diameter, and shaft portion 205 is approximately four centimeters in diameter. These dimensions are exemplary of only one embodiment, and in other embodiments the diameters may be smaller or larger or may have different relative diameters (i.e., the diameter of introital section 204 may be more or less than 1 cm different from a diameter of shaft section 205)
[0077] A length of outer component 200 in various embodiments is in a range of about 10 cm to about 20 cm, such as about 10 cm to about 15 cm. In other embodiments, the length of outer component 200 may be shorter or longer, as may relate to the natural anatomy in some women. While flushing stent device 100 is depicted herein as being generally straight, in other embodiments flushing stent device 100 (or one or more layers thereof, such as middle component 300) can be curved or include a curved section or portion. For example, in some embodiments a proximal third or distal third of flushing stent device 100 can have a slight angle of curvature, which can mimic a more natural anatomy in some women.
[0078] In various embodiments, outer component 200 is approximately 0.1-4 millimeters thick and is flexible. Outer component 200 comprises a biocompatible material in embodiments and is suitable for use with various douching fluids, including povidone-iodine douching fluid, and does not decompose or leech out into the surrounding body tissue. Outer component 200 also prevents the surrounding body tissue from healing or growing into flushing stent device 100, particularly the fenestrated structure of middle component 300.
[0079] Referring to
[0080] Middle component 300, like outer component 200, also comprises an aperture 306 at the proximal end or cap section 307. This allows a douching tube (not shown in the drawings) to be inserted through middle component 300 from the distal end to mechanically and fluidly couple with flushing stent device 100 for douching from the proximal end.
[0081] Similar to outer component 200, middle component 300 includes an introital section 304 having a smaller diameter than a body portion. The length of middle component 300 is similar to outer component 200, approximately 10 cm to 20 cm, for example 10 cm to 15 cm, though the length of middle component 300 may be slightly less than the length of outer component 200 so that middle component 300 can fit within outer component 200. In other embodiments, the length of middle component 300 may be shorter or longer, depending on the length of outer component 200 and for the natural anatomy in some women. Again, similar to outer component 200, middle component 300 also can be curved or include one or more curved portions.
[0082] Referring generally to
[0083] Similar to outer component 200 and middle component 300, inner component 400 can comprise an introital section having a smaller diameter than a body portion. The length of inner component 400 is similar to outer component 200 and middle component, approximately 10 cm to 20 cm, for example 10 cm to 15 cm, though the length of inner component 400 may be slightly less than the length of middle component 300 so that inner component 400 can fit within middle component 300. In other embodiments, the length of inner component 400 may be shorter or longer, depending on the length of middle component 300 and for the natural anatomy in some women. Again, similar to outer component 200 and middle component 300, some embodiments of inner component 400 can be curved or include one or more curved portions.
[0084] In some embodiments inner component 400 comprises or is a radial cam expander. In these embodiments, the radial cam expander is configured to transition inner component 400 from the first relaxed configuration (e.g., as shown in
[0085] In other embodiments, other radial cam expander components or configurations can be used. In still other embodiments, flushing stent device 100 comprises another type of expansion/retraction mechanism configured to transition inner component 400 or flushing stent device 100 more generally between a retracted configuration and an expanded configuration. Similar to a speculum or other medical device (though the particular expansion/retraction mechanism may vary from a speculum), the expansion/retraction mechanism enables inner component 400 or flushing stent device 100 to be inserted by a physician in a retracted configuration and transitioned in situ to an expanded configuration.
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[0087] Proximal cap section 607 also comprises a plurality of external channels 602 mechanically and fluidly coupled with aperture 606 and tube structure 610. Channels 602 are analogous to channels 202, described above. In general, channels 602 are configured to provide even fluid distribution during douching when a douche apparatus is inserted mechanically and fluidly coupled with tube structure 610, which helps minimize the risk of tissue in-growth along outer component 620, as douching is used both to heal tissue and to prevent adhesion of tissue to outer component 620.
[0088] Some embodiments of outer component 600 include an introital portion 604 at the distal end of shaft section 605, as shown in
[0089] Embodiments of outer component 600 are configured for use with embodiments of a middle component 700, for example as depicted by
[0090] The length and dimensions of middle component 700 are similar to outer component 600, though the length of middle component 700 may be slightly less than the length of outer component 600 so that middle component 700 can fit within outer component 600. In other embodiments, the length of middle component 600 may be smaller or larger, depending on the length of outer component 700 and the natural anatomy in some patients. Again, similar to outer component 700, middle component 600 also can be curved or include one or more curved portions.
[0091] Generally, middle component 700 comprises a proximal cap section 707 having an aperture 706 configured for mechanical and fluid connection with tube structure 610, a main shaft section 705, and a distal section 704. Middle component 700 is configured to fit snugly within outer component 600, though some relative movement of the components 600, 700 may occur in use.
[0092] Aperture 706 at the proximal cap section 707 allows a douching tube (not shown in the drawings) to be inserted through middle component 700 from the distal end to mechanically and fluidly couple with flushing stent device 100 for douching from the proximal end. For example, the douching tube may be inserted through tube structure 610, which extends past distal section 704 through the interior of main shaft 705.
[0093] Embodiments of main shaft 705 include a lattice-like arrangement of apertures 702. Apertures 702 may comprise a uniform arrangement over the entirety of main shaft 705, as depicted in
[0094] Distal section 704 is open at the distal end, providing access to an interior cavity 712. In some embodiments, interior cavity 712 is configured to receive surgical packing materials like gauze or other materials in post-operative use. In alternative embodiments, interior cavity 712 is configured to receive, for example, an expansion and retraction mechanism analogous to inner component 400.
[0095] In embodiments, inner component 400 comprises or is configured to temporarily or permanently coupled with suturing tab portion 500. In still other embodiments, suturing tab portion 500 can be configured to temporarily couple or interact with outer component 200, 600 and/or middle component 300, 700. Suturing tab portion 500 comprises a first notched end 502 and a second end 504. Notched end 502 is configured to removably receive a portion of a Foley catheter in some embodiments, which can be used post-operatively to allow for urination. In other embodiments, the notch can be omitted and first end 502 and second end 504 can be similarly or identically configured.
[0096] In use, suturing tab portion 500 is configured to remain outside a patient's body when flushing stent device 100 is in situ. Suturing tab portion 500 can assist a physician in inserting and positioning flushing stent device 100, manipulating flushing stent device 100 when in use (i.e., moving flushing stent device 100 to prevent tissue adhesion), and/or assisting in removing inner component 400 post-operatively when it is no longer needed. Suturing tab portion 500 is configured to be positioned such that first notched end 502 is anterior and can be sutured to the patient's vulva. Second end 504 is positioned posterior and can be sutured to the patient's perineum. To facilitate suturing, some embodiments of suturing tab portion 500 comprise a plurality of suturing apertures arranged proximate an edge of suturing tab portion. The size, placement or relative arrangement of the suturing apertures can vary from those depicted in the drawings. In an alternative embodiment, the suturing apertures can be placed on the distal surface of suturing tab portion 500 with eyelets or hoops for sutures to be threaded across suturing tab portion 500 and sutured to the medial aspects of the thigh in the groin region.
[0097] In use, flushing stent device 100 is inserted by a physician or a patient into a neovagina or post-operative vagina. When inserted, flushing stent device 100 can comprise two components (i.e., outer component 200, 600 and middle component 300, 700, with inner component 400 and suturing tab portion 500 omitted or inserted separately) or three components (i.e., all of outer component 200, 600, middle component 300, 700, and inner component 400 with or without suturing tab portion 500 preassembled). Once positioned, and if applicable, the physician can expand inner component (in embodiments in which inner component 400 is configured to have both retracted and expanded states) and suture flushing stent device 100 into place via suturing tab portion 500 and using suturing materials (e.g., needle, sutures). Inner component 400 can be pre-packed with surgical packing materials before insertion, or surgical packing materials can be inserted once inner component 400 is in situ (and optionally expanded, in embodiments in which expansion/retraction is used). If inner component 400 is omitted, the surgical packing materials may be pre-packaged or inserted within interior cavity 712. After some post-operative period (such as about 5 days), the physician can remove the materials or components within interior cavity 712, such as inner component 400 and suturing tab component 500, leaving outer component 200, 600 and middle component 300, 700 of flushing stent device 100 in situ. Outer component 200, 600 and middle component 300, 700 of flushing stent device 100 can remain in place for weeks or months, and the aperture/tube assembly structure enables the patient to douche whenever needed by inserting a tube of an external douche assembly into middle component 300, 700 of flushing stent device and couple at the proximal end of the tube to tube assembly 310, 610. In use, douching fluid can be provided to an external surface of flushing stent device 100 via apertures 306, 706 and 206, 606 and channels 202, 602.
[0098] In some embodiments, flushing stent device 100 can be provided in or with a kit offered for sale. The kit can comprise at least one flushing stent device 100, and in some embodiments comprises a plurality of flushing stent devices 100, such as different sizes of flushing stent devices 100. The one or more flushing stent devices 100 can be provided in sterile packaging, and the kit also can include one or more instructions for use, surgical packing materials, a Foley or other catheter device, a douching apparatus or fluid, sutures or materials for suturing, or other components configured to support physician understanding and use of flushing stent device 100 or patient post-operative care or interaction with flushing stent device 100 in situ.
[0099] Various advantages are provided by embodiments of the flushing stent device disclosed herein when compared with conventional approaches, including reduced hospitalization times, more patient comfort and control, and the ability to douche multiple times daily without having to remove or replace the flushing stent device.
[0100] In an example embodiment, a flushing vaginal stent device comprises an outer component having an outer component proximal end and an outer component distal end, the outer component proximal end comprising a tube portion fluidly coupled with an aperture that is fluidly coupled with a plurality of channels formed in an outer surface of the outer component, and the outer component distal end being open; a middle component having a middle component proximal end with an aperture and a middle component distal end and comprising a fenestrated body structure between the middle component proximal end and the middle component distal end, the middle component configured to be arranged within the outer component such that the aperture of the middle component proximal end and the aperture of the outer component proximal end are arranged together and the outer component proximal end and the middle component proximal end are arranged together and the outer component distal end and the middle component distal end are arranged together; and an interior component having an interior proximal end and an interior distal end, the interior component configured to be arranged within the middle component such that the outer component proximal end, the middle component proximal end, and the interior component proximal end are arranged together and the outer component distal end, the middle component distal end, and the interior component distal end are arranged together.
[0101] The interior component can further comprise a mechanism configured to move the interior component between a retracted state and an expanded state.
[0102] The flushing vaginal stent device can further comprise a suturing tab portion having a first end and a second end, the suturing tab portion coupled with the mechanism.
[0103] The suturing tab portion can be configured to temporarily couple with at least one of the outer component or the middle component.
[0104] The suturing tab portion can be permanently coupled with the mechanism and the mechanism can be removably arranged within the interior component such that the suturing tab portion and the mechanism can be removed simultaneously without removing the outer component or the middle component.
[0105] The suturing tab portion can further comprise a catheter aperture formed in the first end.
[0106] The suturing tab portion can further comprise a plurality of suturing tab apertures arranged proximate an edge of the suturing tab portion.
[0107] The internal tube portion can extend past the outer component distal end, the middle component distal end, and the interior distal end.
[0108] At least one of a length of each of the outer component, the middle component, and the interior component, or a diameter of each of the outer component, the middle component, and the interior, can be configured for placement in a pediatric patient.
[0109] The outer component distal end, the middle component distal end, and the interior distal end can further comprise a tapered introital section reducing a diameter of the outer component distal end, a diameter of the middle component distal end, and a diameter the interior distal end.
[0110] Each of the plurality of channels can radiate away from the aperture and extend partially down sides of the outer component.
[0111] In an example embodiment, a kit for vaginal flushing comprises at least one flushing stent device as described in any of the preceding paragraphs, and at least one of: instructions for use; sterile packaging; surgical packing material; catheter; douche device; catheter tubing; or suturing material.
[0112] In an example embodiment, a method comprises providing a flushing vaginal stent device comprising: an outer component having an outer component proximal end and an outer component distal end, the outer component proximal end comprising a tube portion fluidly coupled with an aperture that is fluidly coupled with a plurality of channels formed in an outer surface of the outer component, and the outer component distal end being open; a middle component having a middle component proximal end with an aperture and a middle component distal end and comprising a fenestrated body structure between the middle component proximal end and the middle component distal end, the middle component configured to be arranged within the outer component such that the aperture of the middle component proximal end and the aperture of the outer component proximal end are arranged together and the outer component proximal end and the middle component proximal end are arranged together and the outer component distal end and the middle component distal end are arranged together; and an interior component having an interior proximal end and an interior distal end, the interior component configured to be arranged within the middle component such that the outer component proximal end, the middle component proximal end, and the interior component proximal end are arranged together and the outer component distal end, the middle component distal end, and the interior component distal end are arranged together.
[0113] The method can further comprise providing an expansion and retraction mechanism removably coupled to the interior component to facilitate expanding a volume of the interior component.
[0114] The method can further comprise facilitating retraction and removal of the expansion and retraction mechanism and the surgical packing material after a post-operative period.
[0115] The method can further comprise configuring the middle component for: insertion of a douche device into the middle component in situ, coupling of the douche device to the tube portion, and expressing of douche fluid from the douche device, through the tube portion, through the proximal end aperture, and into the plurality of channels.
[0116] The method can further comprise configuring the proximal end aperture and the plurality of channels such that douche fluid is provided to an external surface of the outer component.
[0117] The method can further comprise providing a suturing tab portion coupled with at least the interior component to facilitate selective securing of the flushing stent device to the patient by suturing the flushing stent device to the patient.
[0118] The method can further comprise configuring the suturing tab portion for selective removable coupling of a catheter to a notched end of the suturing tab portion.
[0119] In embodiments of the method, the suturing portion can further comprise a plurality of suturing tab apertures arranged proximate an edge of the suturing tab portion to facilitate the selective securing of the flushing stent device to a patient by applying sutures to the suturing tab portion.
[0120] The method can further comprise configuring the tube position to extend past the distal end such that the tube portion is accessible via a vaginal canal of the patient when the flushing stent device is in situ above a pelvic floor musculature of the patient.
[0121] The method can further comprise extending the tube portion.
[0122] Various embodiments of systems, devices, and methods have been described herein. These embodiments are given only by way of example and are not intended to limit the scope of the claimed inventions. It should be appreciated, moreover, that the various features of the embodiments that have been described may be combined in various ways to produce numerous additional embodiments. Moreover, while various materials, dimensions, shapes, configurations and locations, etc. have been described for use with disclosed embodiments, others besides those disclosed may be utilized without exceeding the scope of the claimed inventions.
[0123] Persons of ordinary skill in the relevant arts will recognize that the subject matter hereof may comprise fewer features than illustrated in any individual embodiment described above. The embodiments described herein are not meant to be an exhaustive presentation of the ways in which the various features of the subject matter hereof may be combined. Accordingly, the embodiments are not mutually exclusive combinations of features; rather, the various embodiments can comprise a combination of different individual features selected from different individual embodiments, as understood by persons of ordinary skill in the art. Moreover, elements described with respect to one embodiment can be implemented in other embodiments even when not described in such embodiments unless otherwise noted.
[0124] Although a dependent claim may refer in the claims to a specific combination with one or more other claims, other embodiments can also include a combination of the dependent claim with the subject matter of each other dependent claim or a combination of one or more features with other dependent or independent claims. Such combinations are proposed herein unless it is stated that a specific combination is not intended.
[0125] Any incorporation by reference of documents above is limited such that no subject matter is incorporated that is contrary to the explicit disclosure herein. Any incorporation by reference of documents above is further limited such that no claims included in the documents are incorporated by reference herein. Any incorporation by reference of documents above is yet further limited such that any definitions provided in the documents are not incorporated by reference herein unless expressly included herein.
[0126] For purposes of interpreting the claims, it is expressly intended that the provisions of 35 U.S.C. § 112(f) are not to be invoked unless the specific terms “means for” or “step for” are recited in a claim.