Bone biopsy device and related methods
AssigneeMerit Medical Systems, Inc.
InventorsRobert Bilgor Peliks, Jeremy Snow, Jade Ollerenshaw
Life of this patent
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Abstract
Devices and methods used to obtain core tissue samples are disclosed. The devices may be configured to drill into cortical bone and saw a hole into a bone lesion and/or bone marrow while obtaining the core tissue sample. The devices can include a motor and a transmission configured to rotate a trocar having a tip configured for drilling and an outer coax cannula having a cutting tip configured for sawing. The core tissue sample may be received within an inner cannula. A part-off tab may cut or sever the core tissue sample from the bone lesion and/or bone marrow.
Claims20
A bone biopsy device, comprising:
- a handle assembly, comprising:
- a motor;
- a transmission operably coupled to the motor;
- an intermediate cannula;
- an inner cannula coaxially disposed within the intermediate cannula;
- and
- a penetration member operably coupled to the transmission and coaxially disposed within the inner cannula;
- a coax assembly, comprising:
- an outer coax cannula operably coupled to the transmission and coaxially disposed over the intermediate cannula;
- and
- a power pack, comprising:
- a power source.
A bone biopsy device, comprising:
- a handle assembly, comprising:
- a motor;
- a transmission operably coupled to the motor;
- an intermediate cannula;
- an inner cannula coaxially disposed within the intermediate cannula;
- and
- a penetration member operably coupled to the transmission and coaxially disposed within the inner cannula;
- a coax assembly, comprising:
- an outer coax cannula operably coupled to the transmission and coaxially disposed over the intermediate cannula;
- and
- a power pack, comprising:
- a power source,
- wherein at least one of the power pack or the motor are selectively removeable from the handle assembly, and wherein at least one of the power pack is reusable or motor is reusable.
A method of obtaining a core tissue sample from a patient, comprising:
- obtaining a bone biopsy device, comprising:
- a handle assembly, wherein the handle assembly comprises:
- an inner cannula;
- an intermediate cannula;
- a penetration member;
- and
- a motor;
- a coax assembly, wherein the coax assembly comprises an outer coax cannula;
- and
- a power pack;
- inserting the outer coax cannula, the inner cannula, the intermediate cannula, and the penetration member into the patient;
- retracting the penetration member from an extended configuration to a retracted configuration;
- further inserting the intermediate cannula and the inner cannula into at least one of a bone lesion or bone marrow;
- obtaining the core tissue sample within the inner cannula;
- removing the inner cannula, the intermediate cannula, and the penetration member from the patient;
- and
- displacing the penetration member from the retracted configuration to the extended configuration to eject the core tissue sample from the inner cannula.
Dependencies are inferred from the claim text.