Back to results
US 2026/0216478 A1Published application
Injection systems
AssigneeMayo Foundation for Medical Education and Research
InventorsEmanuel C. Trabuco, Jordan D. Miller, Erika K. Ross
Life of this patent
Estimating the term…
Abstract
Devices and methods are described for injecting therapeutics into tissue. For example, some embodiments disclosed in this document include devices and methods for injecting muscle precursor cells into the sphincter urethrae to treat stress urinary incontinence.
Claims20
An injection device comprising:
- a handle;
- a shaft extending distally from the handle;
- two or more needles;
- a first slider mechanism configured to control movement of the two or more needles along a longitudinal axis of the shaft;
- and
- a second slider mechanism configured to control radial movement of the two or more needles between:
- (i) a first position that is fully within the shaft and (ii) a second position in which a distal tip portion of each of the two or more needles extends radially from the shaft, wherein mechanical engagement between the first slider mechanism and second slider mechanism prevents movement of the two or more needles along a longitudinal axis of the shaft when the two or more needles are in the second position in which the distal tip portion of the needles extends radially from the shaft.
4 more elements
A method of treating urinary incontinence, the method comprising:
- inserting a shaft of an injection device into a urethra so that a distal tip portion of the shaft resides within a bladder;
- positioning a meatus clamp of the injection device against a urethral meatus of the urethra;
- after positioning the meatus clamp, measuring a length of the urethra using a scale on the shaft;
- sliding a first slider mechanism along a longitudinal axis of the shaft to cause two or more needles to move longitudinally along the shaft;
- sliding a second slider mechanism distally along the shaft to cause the two or more needles to extend radially from the shaft so that a distal tip portion of each of the two or more needles puncture and extend through an inner wall of the urethra;
- and
- while the two or more needles are extending through the inner wall of the urethra, injecting a therapeutic via the two or more needles.
4 more elements
Dependencies are inferred from the claim text.