Core needle biopsy device
AssigneesNational University Hospital (Singapore) Pte Ltd, Irnovate Pte Ltd
InventorsKamarjit Singh Mangat, Gabriel Hong Chun Tan, Ronald Craig Wight, Chun Siong Lee
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Abstract
The present disclosure provides a biopsy device for performing soft tissue biopsy on any major organ through the venous system, and a method for using the biopsy device. The biopsy device of the present disclosure is a system that is sufficiently flexible such that the system can be guided manually and with existing tools i.e., fluoroscopy for visualisation and simple guidewires. Once in place, the biopsy device of the present disclosure can generate enough force and can transmit that force to the distal cutting end of the system to penetrate the organ and obtain a biopsy.
Claims21
A biopsy device for acquiring a biopsy sample of a target organ in a subject, the biopsy device comprising:
- a housing;
- an elongated tube with a first proximal end and a first distal end, wherein the first distal end is positioned at a biopsy site of the target organ, and wherein the first proximal end comprises a first locking mechanism having a swivel disposed around the elongated tube and a bayonet externally coupled to the swivel, said bayonet attached to an external portion of the housing;
- and
- a biopsy needle with a second proximal end and a second distal end, the biopsy needle is positioned within the elongated tube for navigation to the biopsy site and is configured to exit the first distal end of the elongated tube for penetration into tissue of the target organ at the biopsy site, and to acquire a biopsy sample of the target organ at the biopsy site,
- wherein the second proximal end of the biopsy needle having a second locking mechanism comprising a cartridge and a stylet lug disposed around the biopsy needle, the cartridge and the stylet lug each coupled to and enclosed within the housing.
A method for acquiring a biopsy sample of a target organ in a subject using a biopsy device, the method including:
- providing a biopsy device, the biopsy device comprising:
- a housing;
- an elongated tube with a first proximal end and a first distal end, wherein the first distal end is positioned at a biopsy site of the target organ, and wherein the first proximal end comprises a first locking mechanism having a swivel disposed around the elongated tube and a bayonet externally coupled to the swivel, said bayonet attached to an external portion of the housing;
- and
- a biopsy needle with a second proximal end and a second distal end, the biopsy needle is positioned within the elongated tube for navigation to the biopsy site and is configured to exit the first distal end of the elongated tube for penetration into tissue of the target organ at the biopsy site, and to acquire a biopsy sample of the target organ at the biopsy site, and wherein the second proximal end of the biopsy needle comprises a second locking mechanism, said second locking mechanism comprising a cartridge and a stylet lug disposed around the biopsy needle, the cartridge and the stylet lug each coupled to and enclosed within the housing
- wherein the second proximal end of the biopsy needle having a second locking mechanism comprising a cartridge and a stylet lug disposed around the biopsy needle, the cartridge and the stylet lug each coupled to and enclosed within the housing;
- percutaneously inserting the elongated tube into a first blood vessel of a limb of a subject;
- and
- navigating the first distal end of the elongated tube from the first blood vessel through a vascular system of the subject and into a second blood vessel of the target organ near the biopsy site.
Dependencies are inferred from the claim text.