Hysterography and intrauterine venography catheter
View Patent ↗A single device is provided for performing hysterography and intrauterine venography having a marker that aids in positioning the device within the patient, having a bulb-tip to seal the cervix, having a bulb-tip opening to allow an image enhancing medium to be discharged from a needle and injected into the uterus to perform the hysterography, having a needle to discharge and inject an image enhancing medium into the fundal myometrium to perform the intrauterine venography, and having a needle securing mechanism to secure the needle to prevent patient injury during transcervical introduction of the device.
1. A method for diagnosing uterine health, the method comprising:
inserting a device configured for performing hysterography and intrauterine venography transcervically into a uterus, the device comprising a catheter and a needle movably disposed through a lumen within the catheter, wherein a tip of the needle is fixably maintained within the lumen during the inserting step;
determining a correct depth of the device within the uterus by remote observation of at least one marker on the device with the first diagnostic tool;
discharging a first medium configured for enhancing the hysterography from a first syringe into the device and injecting the first medium into the uterus;
viewing the uterus using a first diagnostic tool for performing hysterography;
advancing the needle of the device into a fundal myometrium of the uterus;
discharging a second medium configured for enhancing the venography from a second syringe into the needle and injecting the second medium into the fundal myometrium; and
viewing the fundal myometrium using a second diagnostic tool for performing the venography.
2. The method according to claim 1 wherein about 5-10 ml of the first medium is discharged and about 10-20 ml of the second medium is discharged.
3. The method according to claim 1 further comprising discharging about 10 ml of the second medium from each of the second syringe and a third syringe of the device through the needle.
4. The method according to claim 1 wherein the first medium and the second medium are image enhancing media and are the same or different.
5. The method according to claim 1 wherein the first diagnostic tool and the second diagnostic tool are a fluoroscope, x-ray, or ultrasound, and are the same or different.
6. The method according to claim 1 further comprising sealing the cervix by using a bulb-tip of the device.
7. The method according to claim 1 wherein the first syringe and the second syringe are the same or different.
8. The method according to claim 1 further comprising a securing mechanism disposed at a proximal end portion of the catheter, wherein the securing mechanism is configured to be adjustable between a first orientation fixing the position of the needle with respect to the catheter and a second orientation allowing the needle to slide within the lumen and out of a distal end of the catheter.
9. The method according to claim 8 further comprising locking the needle with respect to the catheter with the securing mechanism prior to inserting the device into the uterus.
10. The method according to claim 9 further comprising unlocking the needle with respect to the catheter with the securing mechanism prior to advancing the needle into the fundal myometrium of the uterus.
11. The method according to claim 9 further comprising unlocking the needle with respect to the catheter with the securing mechanism after a distal end of the catheter contacts the fundal myometrium.
12. The method according to claim 1 where the at least one marker on the device comprises two markers upon a distal portion of the catheter, wherein the two markers are spaced at a fixed distance apart and are each remotely observable with the first diagnostic tool.
13. The method according to claim 12 wherein the two markers upon the distal portion of the catheter are each radiopaque or echogenic.
14. The method according to claim 12 further comprising the step of measuring aspects of the fundal myometrium based upon comparison of the relative positioning and distance of the two markers with remotely observable aspects of the fundal myometrium using the second diagnostic tool.