Needle biopsy device with exchangeable needle and integrated needle protection
First Claim
1. A device for needle biopsy comprising:
- a delivery handle system having an adjustable length, a longitudinal axis defining a lumen extending therethrough, and comprising a proximal handle member, a middle handle member and a distal handle member, the proximal handle member being slideably disposed over at least a portion of the middle handle member, the middle handle member being slideably disposed over at least a portion of the distal handle member, the proximal handle member comprising an inner hub housing component comprising an internally cylindrical shape configured to interchangeably receive a needle subassembly configured for inserting into and withdrawing from the proximal handle member;
the needle subassembly comprising a needle having a proximal end portion and a distal end portion, a needle luer coupled to the proximal end portion of the needle, and a needle hub coupled to the proximal end portion of the needle, the needle hub configured for coupling with the inner hub housing component of the proximal handle member; and
the needle subassembly further comprising a needle protector subassembly configured for coupling to the distal end portion of the needle, the needle protector subassembly comprising a needle protection hub having a lumen extending therethrough configured for receiving the distal end portion of the needle, a deformable O-ring axially disposed within the lumen of the needle protection hub, and a tubular sheath defining a lumen and extending from a distal end of the needle protection hub, the lumen of the tubular sheath in communication with the lumen of the needle protection hub for receiving the needle when inserted into the needle protection hub;
wherein the lumen extending through the delivery handle system comprises;
an inner hypotube component at least partially disposed within the proximal handle member;
an outer hypotube component disposed at least partially within the middle handle member, the inner hypotube component being coupled to the outer hypotube component and configured to longitudinally slide within the outer hypotube component when the proximal handle member is distally advanced or proximally retracted over the middle handle member; and
a tubular catheter sheath coupled to a distal end of the outer hypotube component,the inner hypotube component, outer hypotube component and catheter sheath being in constant communication with each other;
the device further comprising an inner handle member disposed within an inner portion of the middle handle member, the inner handle member coupled to a proximal portion of the catheter sheath and a distal portion of the outer hypotube, such that the catheter sheath is distally extended into the distal handle member when the middle handle member is distally advanced over the distal handle member.
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Accused Products
Abstract
The invention provides a device for needle biopsy having a novel delivery handle system for interchangeably delivering needles of various sizes to a biopsy site. The delivery handle system is adjustable in length and includes a proximal handle member slideably disposed over a middle handle member, and the middle handle member is slideably disposed over a distal handle member. The proximal handle member includes an inner hub housing component configured to interchangeably receive a needle subassembly that can be inserting into and withdrawn from the proximal handle member. The needle subassembly includes a needle of a plurality of different sizes, a needle luer, a needle hub coupled to a proximal end portion of the needle, and a needle protector subassembly. The needle protector subassembly includes a needle protection hub configured to receive the distal end of a needle.
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Citations
20 Claims
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1. A device for needle biopsy comprising:
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a delivery handle system having an adjustable length, a longitudinal axis defining a lumen extending therethrough, and comprising a proximal handle member, a middle handle member and a distal handle member, the proximal handle member being slideably disposed over at least a portion of the middle handle member, the middle handle member being slideably disposed over at least a portion of the distal handle member, the proximal handle member comprising an inner hub housing component comprising an internally cylindrical shape configured to interchangeably receive a needle subassembly configured for inserting into and withdrawing from the proximal handle member; the needle subassembly comprising a needle having a proximal end portion and a distal end portion, a needle luer coupled to the proximal end portion of the needle, and a needle hub coupled to the proximal end portion of the needle, the needle hub configured for coupling with the inner hub housing component of the proximal handle member; and the needle subassembly further comprising a needle protector subassembly configured for coupling to the distal end portion of the needle, the needle protector subassembly comprising a needle protection hub having a lumen extending therethrough configured for receiving the distal end portion of the needle, a deformable O-ring axially disposed within the lumen of the needle protection hub, and a tubular sheath defining a lumen and extending from a distal end of the needle protection hub, the lumen of the tubular sheath in communication with the lumen of the needle protection hub for receiving the needle when inserted into the needle protection hub; wherein the lumen extending through the delivery handle system comprises; an inner hypotube component at least partially disposed within the proximal handle member; an outer hypotube component disposed at least partially within the middle handle member, the inner hypotube component being coupled to the outer hypotube component and configured to longitudinally slide within the outer hypotube component when the proximal handle member is distally advanced or proximally retracted over the middle handle member; and a tubular catheter sheath coupled to a distal end of the outer hypotube component, the inner hypotube component, outer hypotube component and catheter sheath being in constant communication with each other; the device further comprising an inner handle member disposed within an inner portion of the middle handle member, the inner handle member coupled to a proximal portion of the catheter sheath and a distal portion of the outer hypotube, such that the catheter sheath is distally extended into the distal handle member when the middle handle member is distally advanced over the distal handle member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A device for needle biopsy comprising:
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a delivery handle system having an adjustable length, a longitudinal axis defining a lumen extending therethrough, and comprising a proximal handle member, a middle handle member and a distal handle member, the proximal handle member being slideably disposed over at least a portion of the middle handle member, the middle handle member being slideably disposed over at least a portion of the distal handle member, the proximal handle member comprising an inner hub housing component comprising an internally cylindrical shape configured to interchangeably receive a needle subassembly configured for inserting into and withdrawing from the proximal handle member; the needle subassembly comprising a needle having a proximal end portion and a distal end portion, a needle luer coupled to the proximal end portion of the needle, and a needle hub coupled to the proximal end portion of the needle, the needle hub configured for coupling with the inner hub housing component of the proximal handle member; and the needle subassembly further comprising a needle protector subassembly configured for coupling to the distal end portion of the needle, the needle protector subassembly comprising a needle protection hub having a lumen extending therethrough configured for receiving the distal end portion of the needle, a deformable O-ring axially disposed within the lumen of the needle protection hub, and a tubular sheath defining a lumen extending from a distal end of the needle protection hub, the lumen of the tubular sheath in communication with the lumen of the needle protection hub for receiving the needle when inserted into the needle protection hub; wherein the needle further comprises a collet surrounding the distal end portion of the needle, the collet comprising a diameter larger than the diameter of the deformable O-ring of the needle protection hub, such that the collet traverses the deformable O-ring when the needle is inserted into or withdrawn from the lumen of the needle protection hub, thereby locking the needle protector subassembly onto the distal end portion of the needle during insertion and withdrawal of the needle subassembly from the delivery handle system. - View Dependent Claims (17)
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18. A device for needle biopsy comprising:
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a delivery handle system having an adjustable length, a longitudinal axis defining a lumen extending therethrough, and comprising a proximal handle member, a middle handle member and a distal handle member, the proximal handle member being slideably disposed over at least a portion of the middle handle member, the middle handle member being slideably disposed over at least a portion of the distal handle member, the proximal handle member comprising an inner hub housing component comprising an internally cylindrical shape configured to interchangeably receive a needle subassembly configured for inserting into and withdrawing from the proximal handle member; the needle subassembly comprising a needle having a proximal end portion and a distal end portion, a needle luer coupled to the proximal end portion of the needle, and a needle hub coupled to the proximal end portion of the needle, the needle hub configured for coupling with the inner hub housing component of the proximal handle member; and the needle subassembly further comprising a needle protector subassembly configured for coupling to the distal end portion of the needle, the needle protector subassembly comprising a needle protection hub having a lumen extending therethrough configured for receiving the distal end portion of the needle, a deformable O-ring axially disposed within the lumen of the needle protection hub, and a tubular sheath defining a lumen extending from a distal end of the needle protection hub, the lumen of the tubular sheath in communication with the lumen of the needle protection hub for receiving the needle when inserted into the needle protection hub; wherein the proximal handle member further comprises an inner retention collar disposed at a distal end of the inner hub housing component, the inner retention collar configured to receive the needle protection hub coupled to the needle, at least a portion of the retention collar being recessed, and a deformable O-ring component disposed within the recessed portion for securing the needle protection hub within the retention collar upon insertion of the needle subassembly into the proximal handle member; and wherein the O-ring of the retention collar has a diameter smaller than a diameter of the needle protection hub, such that the needle protection hub traverses the deformable retention collar O-ring when the needle subassembly is inserted into or withdrawn from the proximal handle member thereby locking the needle protector subassembly onto the proximal handle portion during insertion and withdrawal of the needle subassembly from delivery handle system.
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19. A device for needle biopsy comprising:
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a delivery handle system having an adjustable length, a longitudinal axis defining a lumen extending therethrough, and comprising a proximal handle member, a middle handle member and a distal handle member, the proximal handle member being slideably disposed over at least a portion of the middle handle member, the middle handle member being slideably disposed over at least a portion of the distal handle member, the proximal handle member comprising an inner hub housing component comprising an internally cylindrical shape configured to interchangeably receive a needle subassembly configured for inserting into and withdrawing from the proximal handle member; the needle subassembly comprising a needle having a proximal end portion and a distal end portion, a needle luer coupled to the proximal end portion of the needle, and a needle hub coupled to the proximal end portion of the needle, the needle hub configured for coupling with the inner hub housing component of the proximal handle member; and the needle subassembly further comprising a needle protector subassembly configured for coupling to the distal end portion of the needle, the needle protector subassembly comprising a needle protection hub having a lumen extending therethrough configured for receiving the distal end portion of the needle, a deformable O-ring axially disposed within the lumen of the needle protection hub, and a tubular sheath defining a lumen extending from a distal end of the needle protection hub, the lumen of the tubular sheath in communication with the lumen of the needle protection hub for receiving the needle when inserted into the needle protection hub; wherein the proximal handle member further comprises a locking mechanism for releasably locking the needle hub within the inner hub housing component of the proximal handle member; and wherein the locking mechanism comprises a depressible latch component securely coupled to the proximal handle member, the latch comprising a deflectable hinge coupled to a barb component, the barb component coupled to the inner hub housing component, disposed within an interior portion of the proximal handle member. - View Dependent Claims (20)
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Specification