DEVICES AND METHODS FOR SOFT TISSUE BIOPSY AND TISSUE SAMPLE COLLECTION

摘要

A device comprises a syringe comprising a syringe body portion and a plunger portion configured to engage with and slide axially within the body portion; a tube set fitted to the syringe. The tube set may comprise a proximal tube attached to the plunger portion at a proximal end thereof and terminated, at a distal end thereof, by a beak assembly configured to assume a first configuration suitable for coring through tissue and a second configuration suitable for tissue penetration and parting off tissue; and a distal tube disposed over and coupled to the proximal tube to enable travel-limited axial displacement relative to the proximal tube. Axially moving the plunger portion of the plunger portion within the body portion of the syringe causes differential movement of the proximal tube relative to the distal tube to selectively cause the beak assembly to assume the first or the second configuration.

主权项

1. A device, comprising:
a syringe comprising a body portion and a plunger portion configured to engage with and slide axially within the body portion; a tube set fitted to the syringe, the tube set comprising: a proximal tube attached to the plunger portion at a proximal end thereof and terminated, at a distal end thereof, by a beak assembly configured to assume a first configuration suitable for coring through tissue and a second configuration suitable for tissue penetration and parting off tissue; and a distal tube disposed over and coupled to the proximal tube to enable travel-limited axial displacement relative to the proximal tube; wherein axially moving the plunger portion within the body portion of the syringe causes differential movement of the proximal tube relative to the distal tube to selectively cause the beak assembly to assume the first or the second configuration.