Apparatus and method to inject fluids into bone marrow and other target sites
First Claim
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1. An apparatus for delivering a quantity of medication to bone marrow of a bone comprising:
- a driver assembly;
a plunger operating and cartridge drive mechanism rotatably engaged with the driver assembly;
a removable cartridge assembly including a plunger and a drive connector attached to the cartridge assembly, the drive connector operable to be releasably engaged with one end of the plunger operating and cartridge drive mechanism and operable to be rotated by the plunger operating and cartridge drive mechanism;
a bone penetrating needle engaged with the cartridge assembly opposite from the drive connector, wherein rotation of the cartridge assembly inserts the bone penetrating needle into the bone and bone marrow;
a plunger operating assembly including a first retracted position and a second released position;
a retractable sleeve operable to slide longitudinally relative to the plunger operating and cartridge drive mechanism, the retractable sleeve having a distal end through which the bone penetrating needle is configured to be inserted into the bone and bone marrow and through which the removable cartridge assembly can be inserted or removed; and
a latch assembly operable to release the plunger operating assembly from the first retracted position to the second released position in response to rotation of the plunger operating and cartridge drive mechanism and longitudinal movement of the retractable sleeve.
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Accused Products
Abstract
Apparatus for delivering a quantity of fluid to bone marrow of a bone or providing access to remove fluids from a target site is provided. The apparatus may include a driver, a plunger operating and cartridge assembly mechanism, a cartridge assembly having a fluid reservoir and a bone penetrating needle.
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Citations
20 Claims
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1. An apparatus for delivering a quantity of medication to bone marrow of a bone comprising:
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a driver assembly; a plunger operating and cartridge drive mechanism rotatably engaged with the driver assembly; a removable cartridge assembly including a plunger and a drive connector attached to the cartridge assembly, the drive connector operable to be releasably engaged with one end of the plunger operating and cartridge drive mechanism and operable to be rotated by the plunger operating and cartridge drive mechanism; a bone penetrating needle engaged with the cartridge assembly opposite from the drive connector, wherein rotation of the cartridge assembly inserts the bone penetrating needle into the bone and bone marrow; a plunger operating assembly including a first retracted position and a second released position; a retractable sleeve operable to slide longitudinally relative to the plunger operating and cartridge drive mechanism, the retractable sleeve having a distal end through which the bone penetrating needle is configured to be inserted into the bone and bone marrow and through which the removable cartridge assembly can be inserted or removed; and a latch assembly operable to release the plunger operating assembly from the first retracted position to the second released position in response to rotation of the plunger operating and cartridge drive mechanism and longitudinal movement of the retractable sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for delivering a quantity of medication to bone marrow of a bone comprising:
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a housing defined in part by a first end and a second end; a motor disposed in the housing proximate the second end of the housing; a drive shaft coupled to and extending from the motor; a rotational drive housing including a first end and a second end with the second end securely engaged with the drive shaft; a removable cartridge assembly including a fluid reservoir with a bone penetrating needle releasably coupled to a first end and a drive connector coupled to a second end, the drive connector operable to releasably engage the cartridge assembly with the first end of the rotational drive housing, the removable cartridge assembly also including a plunger; and a plunger operating and cartridge drive mechanism including; the rotational drive housing operable to transmit rotational forces from the drive shaft to the cartridge assembly; a retractable sleeve slidably disposed in and extending from the first end of the rotational drive housing such that the retractable sleeve is operable to slide longitudinally relative to the drive housing, the retractable sleeve having a distal end through which the bone penetrating needle is configured to be inserted into the bone and bone marrow and through which the removable cartridge assembly can be inserted or removed; a plunger operating assembly slidably disposed within a longitudinal bore of the rotational drive housing, the plunger operating assembly including a first retracted portion and a second released position; and a latch assembly operable to release the plunger operating assembly from the first retracted position to the second released position in response to rotation of the plunger operating and cartridge drive mechanism and longitudinal movement of the retractable sleeve. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification