Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M25/00—Catheters; Hollow probes
  • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
  • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
  • A61M25/0111—Aseptic insertion devices
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B46/00—Surgical drapes
  • A61B46/30—Surgical drapes for surgery through the lower body openings, e.g. urology, gynaecology
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
  • A61B90/40—Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M25/00—Catheters; Hollow probes
  • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B46/00—Surgical drapes
  • A61B46/20—Surgical drapes specially adapted for patients
  • A61B46/23—Surgical drapes specially adapted for patients with means to retain or hold surgical implements
  • A61B2046/234—Surgical drapes specially adapted for patients with means to retain or hold surgical implements with means for retaining a catheter
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M25/00—Catheters; Hollow probes
  • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
  • A61M2025/0191—Suprapubic catheters
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M2210/00—Anatomical parts of the body
  • A61M2210/10—Trunk
  • A61M2210/1078—Urinary tract
  • A61M2210/1089—Urethra
  • A61M2210/1092—Female
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M25/00—Catheters; Hollow probes
  • A61M25/0017—Catheters; Hollow probes specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections

Definitions

• This application describes a catheter placement assist device for assisting aseptic placement of a Foley urinary catheter for female patients.
• This device will assist aseptic placement of indwelling transurethral urinary catheters (commonly known as "Foley catheters”) and intermittent straight catheters.
• Urinary catheters are the most commonly used biomedical device, with approximately one in every five patients admitted to an acute care hospital receiving an indwelling catheter; the rate of catheter use is even higher among Medicare patients.
• Foley catheters are soft, plastic or rubber tubes that are placed transurethrally into the bladder to provide continuous drainage and relief when there is urinary retention, to monitor urine output for critically ill patients, to manage urination during surgery, and to provide end-of-life care.
• Foley catheters are commonly placed in hospital settings (emergency rooms, wards, intensive care units (ICUs), and operating rooms), urology and gynecology clinic settings, and in nursing homes.
• ICUs intensive care units
• Foley catheters are recommended in the following situations: when urine is blocked due to bladder stones, blood clots in the urine, or narrowing of the urethra; during surgery of the prostate gland or in the genital area, such as a hip fracture repair or hysterectomy; after injury to the nerves of the bladder; spinal cord injury; when a condition impairs one's mental function, such as dementia; and when medications are taken that impair the ability of one's bladder muscles to squeeze, which causes urine to remain stuck in the bladder.
• Intermittent straight catheters (ISCs) are catheters that are commonly used in females with chronic bladder emptying issues due to neurologic conditions (such as multiple sclerosis) and pelvic floor muscle disorders. ISCs are inserted to drain the bladder, then immediately removed. Both indwelling Foley catheters and ISCs are associated with an increased rate of infection, and are placed using the same sterile procedure by clinicians in hospitalized and ambulatory patients to reduce the risk of introducing bacteria into the bladder during the placement procedure.
• Certain conditions can make it quite difficult to part the labia of the female genitalia for sterile insertion of a urinary catheter.
• the labia it is not uncommon for the labia to be much thicker than normal, as much as 10 cm, in women with morbid obesity. Women who are bed bound and who must chronically lie on one side of their body can develop asymmetric labia due to dependent edema (i.e., swelling) in the inferior labia due to poor lymphatic drainage. Yet others have congenital asymmetry or anasarca (i.e., severe swelling). All of these conditions can make it more difficult to avoid contamination of a sterile catheter.
• CAUTI Catheter- associated urinary tract infection
• the current disclosure is directed towards a single-use, sterile, disposable catheter placement assist device to aid in the sterile placement of transurethral urinary catheters in female patients.
• the catheter placement assist device includes a labia separator with flared wings on bilateral sides that meet in a valley that has one end serving as a spout, and the other end serving as a posterior shield. On either side, the wings continue out laterally past the spout to create an aperture and then overlap one another for a short distance before terminating.
• a permanent gap may be provided on the anterior side of the aperture between the wings and medical grade adhesive tape may adhere the two sides of the gap together.
• the wings, valley, and spout are used to atraumatically retract the labia major and minora tissues, enabling better visualization and access through the introital aperture to the urethral meatus where a urinary catheter is to be placed.
• the wings, valley, spout, posterior shield, and aperture enable the sterile catheter to be inserted into the urethral meatus without becoming contaminated with bacteria by contact with the labia.
• the valley and spout of the catheter placement assist device follows the urogenital cleft into the vestibule. The spout does not extend past the hymenal ring of the vagina when the catheter placement assist device is in place.
• the wings have a curved profile that allows the labia minora to be parted and then, as the catheter placement assist device is pressed further proximally into the vestibule, part the labia majora.
• the angle at which the wings meet may decrease or increase non-linearly depending on user preference.
• the shape of the wings facilitates placement of the catheter placement assist device even in women having thick or asymmetric labia.
• the wings are moldable or malleable so that they can be shaped as necessary to accommodate labial asymmetry. Moldable wings may be made from a thermoplastic or elastic material, which can be warmed in water for molding and allowed to cool prior to use. Alternately, moldable wings may include metallic wire that can be bent to a desired shape.
• the metallic wire may be coated.
• the catheter placement assist device also includes a posterior shield that covers the perineal tissues including the anus to prevent contamination of the sterile catheter with bacteria, particularly gastrointestinal bacteria, from that area. After the catheter is placed, the catheter placement assist device is removed from the patient by lifting it, separating the overlapping wings to create a space at the potential gap, and aligning space created at the potential gap with the body of the catheter so that the overlapping portion of the wings can be drawn past the catheter body thereby removing the catheter
• the tape is removed from the catheter placement assist device and the two sides of the gap can then be drawn past the catheter to remove the catheter placement assist device while leaving the catheter in place.
• a space between the two sides of the permanent gap 100 may always exist.
• tension may be applied by the tape to the catheter placement assist device to close the permanent gap through deformation of the catheter placement assist device when the catheter placement assist device is placed.
• the two sides of the permanent gap may spring apart when the tape is removed to facilitate removing the catheter placement assist device while the catheter is in place.
• the catheter placement assist device may have a small light, such as a light-emitting diode (LED), to optimize visualization of the urethra for placement of a catheter.
• the catheter placement assist device may also have a small handle to assist initial placement, secure positioning, and to facilitate removal after
• the handle includes an end that may be rested against a bed surface, allowing the catheter placement assist device to be left in place for a few seconds with the wings on the inner surface of the labia and the handle acting as a monopod, so that, for example, a catheter can be picked up without the need for a second medical attendant.
• the handle itself may be bendable, extensible, or
• the catheter placement assist device may further include a catheter tip holder to hold the sterile catheter in a location to be readily accessible for the clinician placing the catheter.
• the catheter placement assist device may have a storage location, such as a pocket or pouch, for anti-microbial swabs to have them readily accessible for use for cleansing the vulvar
• the catheter placement assist device may have a stackable configuration so that a plurality of catheter placement assist devices could be stacked on top of another within a small space, such as for shipping.
• Benefits of the catheter placement assist device of the current disclosure include improved adherence to aseptic technique for female patients, fewer catheterization attempts 125 needed before successful sterile placement of indwelling urinary catheter, improved patient comfort by reducing the number or duration of catheterization attempts required, and reduced rates of catheter-associated bacteriuria or infection, particularly for catheter-associated urinary tract infections occurring less than 48 hours after placement.
• FIG. 1A illustrates a top view of an arrangement of a catheter placement assist device having overlapping wings
• FIG. IB is an enlarged view of the introital aperture of FIG. 1 A;
• FIG. 2 illustrates a right side view of an arrangement of a catheter placement assist device
• FIG. 3A illustrates a section taken through a catheter placement assist device orthogonal to and through its valley and a placement trajectory
• FIG. 3B illustrates a coronal section taken through the spout of a catheter placement assist device in a direction that is orthogonal to its valley;
• FIG. 3C illustrates a section taken through a catheter placement assist device in a direction that is orthogonal to its posterior shield
• FIG. 3D illustrates a section taken through a catheter placement assist device orthogonal to and through an alternatively shaped valley to that in FIG 3A;
• FIG. 4 illustrates the device at an angle to depict the curved wing profiles
• FIG. 5 illustrates a top view of an arrangement of a catheter placement assist device having a permanent gap between wings configured for connection between two sides of the gap by tape;
• FIG. 6 illustrates a bottom view of the arrangement of FIG. 5 with a piece of tape spanning between the two sides of the gap;
• FIG. 7 illustrates a section taken through the tape depicting a tab provided on the tape.
• FIG. 1A illustrates a top view of a catheter placement assist device 2 as placed on an anatomic model of the female external perineal anatomy.
• FIG. IB illustrates an enlarged view of the introital aperture 20 of the device depicted in FIG. 1A.
• FIG. 2 illustrates a right side view of the catheter placement assist device 2.
• the overall three-dimensional shape of the catheter placement assist device 2 is formed so that a second catheter placement assist device 2 can be stacked on a first catheter placement assist device 2 and a third on the second and so on with little or no intervening empty space. This permits multiple stacked catheter placement assist devices 2 to be stored or shipped efficiently in small volumes.
• the catheter placement assist device has two wings 4 and 6, each having a curved profile, that meet at a valley 8 located in the center of the device 2.
• the wings 4 and 6 have clinician-facing surfaces 10 and 12 that are not in contact with the labia when the catheter placement assist device 2 is in position.
• each wing 4 or 6 has a patient-facing surface 14 that is in contact with the labia when the catheter placement assist device 2 is in position.
• a posterior shield 16 extends from one end of the valley 8 at the base of the wings 4 and 6. The other end of the valley 8 forms a spout 18 for insertion into the vaginal vestibule.
• the spout 18 permits correct positioning of the catheter placement assist device 2 while also retracting labial tissue and the posterior vaginal wall to enable optimal visualization of the urethral meatus for insertion of the urinary catheter through the opening in the device called the introital aperture 20 that is formed by the spout 18 and the medial edges of bilateral extensions of the wings 4 and 6, which overlap one another before 180 terminating.
• FIG. IB provides an enlarged view of the introital aperture 20 through which the urethral meatus is easily visualized to enable urinary catheter placement.
• the potential gap 22 permits removal of the catheter placement assist device 2 from the catheter after insertion of an
• the width of the catheter placement assist device 2 from the lateral edge of one wing 4 to the lateral edge of other wing 6 is approximately 3 inches
• the length of the catheter placement assist device 2 from the posterior shield 16 to overlapping portion of the two wings 4 and 6 is 5 inches
• the depth of the 195 catheter placement assist device 2 from the edge of each wing 4 or 6 to the tip of the spout 18 is about 1 inch.
• Other dimensions are possible and are considered within the scope of the present disclosure.
• catheter placement assist device 2 Additional features for other arrangements of the catheter placement assist device 2 include a light 40, a handle 42, catheter tip holder 44, and storage pocket or pouch for
• a small light which may be an LED, is mounted on the device to aide visualization of tissues in the introital aperture.
• a handle is used to help hold, insert, and remove the catheter placement assist device 2. In some arrangements within the scope of the present disclosure, the handle is bendable such that an end of the handle could be placed on a bed surface to temporarily secure the catheter placement assist
• a catheter tip holder is used to store the sterile tip of the urinary catheter in a readily accessible location to use once the catheter placement assist device 2 is in optimal position.
• antimicrobial swabs could be provided on the clinician-facing side of a flared wing.
• FIG. 2 illustrates a right side view of the catheter placement assist device 2 of FIG. 1, 210 showing the patient-facing surface of the flared wings 14, the patient-facing surface of the
• the spout 18 is shown for insertion into the vaginal vestibule, to position the catheter placement assist device 2 securely in order to optimally visualize the urethral meatus through the introital aperture 20 for urinary catheter insertion.
• the spout 18 is sized such that no portion of the catheter placement assist device 2 will pass the hymenal ring of 215 the vagina.
• FIG 3A illustrates a curved wing profile 28 of a catheter placement assist device 2 in the coronal plane through the valley 8 and a placement trajectory 30 using a diagram.
• An angle a e.g., ai or a 2 or a 3
• the angle a increases and decreases non- 220 linearly as one moves from the valley (8 in FIG. 1A and 2) to the outside edge of a wing.
• the spout and valley (18 and 8 in FIG. 4, respectively) can be moved in the +y and +/- x directions to follow and enter a urogenital cleft with folds.
• the spout 18 and valley 8 may travel placement trajectory from si to s 2 in FIG. 3 A as they part the labia minora and are pressed proximally into the vestibule.
• FIG 3B is a coronal section through the region of the spout.
• FIG 3C illustrates a coronal plane section through the posterior shield 16.
• FIG 3D illustrates an alternative curved wing profile 28 to that in FIG 3A whereby the angle a decreases and then increases non-linearly and then decreases as one moves from the valley 8 to the outside edge of the wing.
• FIG. 4 uses a
• FIGS. 1A and IB 230 photograph to show this wing profile 28 placed with respect to female anatomy, depicting the flared wings 4 and 6, spout 18, and posterior shield 16 also depicted in FIGS. 1A and IB.
• FIG. 5 depicts a catheter placement assist device 2 similar to that described with respect to FIGS. 1-4 except that wings 4 and 6 are configured such that a permanent gap 32 is provided adjacent to the introital aperture 20 on the anterior side of the introital aperture 20 when the 235 catheter placement assist device 2 is in position before the wings 4 and 6 terminate.
• the permanent gap 32 has two sides 34. In some arrangements, the space between the two sides 34 may be approximately 1 cm. Other dimensions of the permanent gap 32 are possible and are considered within the scope of the present disclosure.
• a piece of medical grade tape 36 is adhered to the patient-facing 240 surface 14 and arranged to span the space between the two sides 34 of the permanent gap 32.
• the tape 36 prevents soft tissue from being pinched by inadvertently being caught in the permanent gap 32, which may have a space between the two sides 34 at all times. Adhering the tape 36 to the patient-facing surface 14 results in the smooth, non-adhesive side of the tape 36 facing the patient so as not to adhere to the patient's skin.
• the tape 36 245 may include a tab 38 to facilitate grasping and removing the tape 32 from the patient-facing surface 14 prior to removing the catheter placement assist device 2.
• FIG. 7 shows a section taken through the tape 36 depicting the tab 38.
• the permanent gap 32 may be deformable and the space between the two sides 34 may be closed by adhering the tape 36 in tension between the two sides 34.
• the elastic nature of the catheter placement assist device 2 causes the permanent gap 32 to automatically open as the deformation induced by the closure of the permanent gap 32 is eliminated, thereby facilitating removal of the catheter placement assist device 2.

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Surgery (AREA)
• Veterinary Medicine (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Heart & Thoracic Surgery (AREA)
• Public Health (AREA)
• Animal Behavior & Ethology (AREA)
• Anesthesiology (AREA)
• Hematology (AREA)
• Pulmonology (AREA)
• Biophysics (AREA)
• Medical Informatics (AREA)
• Molecular Biology (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• Oral & Maxillofacial Surgery (AREA)
• Pathology (AREA)
• Urology & Nephrology (AREA)
• Media Introduction/Drainage Providing Device (AREA)
• Surgical Instruments (AREA)
• External Artificial Organs (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

Family

ID=60326620

Family Applications (1)

Country Status (7)

Cited By (2)

Families Citing this family (5)

Citations (7)

Family Cites Families (24)

• 2017
  • 2017-05-19 WO PCT/US2017/033553 patent/WO2017201413A1/en not_active Ceased
  • 2017-05-19 AU AU2017267943A patent/AU2017267943B2/en active Active
  • 2017-05-19 EP EP17800240.8A patent/EP3458140B1/en active Active
  • 2017-05-19 CN CN201780033834.4A patent/CN109310845B/zh active Active
  • 2017-05-19 CA CA3025055A patent/CA3025055A1/en active Pending
  • 2017-05-19 JP JP2018561025A patent/JP6933385B2/ja active Active
• 2018
  • 2018-08-06 US US16/055,390 patent/US10279145B2/en active Active
• 2022
  • 2022-03-07 AU AU2022201556A patent/AU2022201556B9/en active Active

Patent Citations (7)

Also Published As

Similar Documents

Legal Events