INTERLOCKING HANDLE
First Claim
Patent Images
1. An interlocking trocar and access cannula tool configured to form a composite device, the tool comprising:
- an access cannula comprising;
an elongate cannula body;
a finger grip surface extending from the cannula body, wherein the finger grip surface extends lateral to the cannula body from a position distal to the proximal end of the cannula body;
an engagement region at the proximal end of the cannula body; and
a stop at the proximal end region of the cannula body; and
a trocar comprising;
an elongate trocar body extending longitudinally;
a handle at the proximal end of the trocar body, the handle having a gripping surface oriented parallel to the longitudinal axis of the trocar body;
a mating surface at the distal portion of the handle configured to mate with the engagement region of the access cannula; and
a stop mate within the engagement region;
wherein the trocar is configured to slide within the elongate cannula body so that the engagement region on the access cannula mates with the mating surface on the trocar to form a composite device in which the finger grip surface of the access cannula is oriented perpendicular to the handle gripping surface of the trocar when the stop on the access cannula is mated with the stop mate on the trocar.
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Accused Products
Abstract
Described herein are interlocking surgical tools (e.g., trocars, cannula, etc.) that form a composite surgical device having a handle and a finger grip region that are separate, when the component portions are interlocked. In particular, these tools are configured so that the separate handle and finger grip regions are perpendicular to each other. This arrangement may provide benefits in manipulating these devices.
118 Citations
19 Claims
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1. An interlocking trocar and access cannula tool configured to form a composite device, the tool comprising:
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an access cannula comprising; an elongate cannula body; a finger grip surface extending from the cannula body, wherein the finger grip surface extends lateral to the cannula body from a position distal to the proximal end of the cannula body; an engagement region at the proximal end of the cannula body; and a stop at the proximal end region of the cannula body; and a trocar comprising; an elongate trocar body extending longitudinally; a handle at the proximal end of the trocar body, the handle having a gripping surface oriented parallel to the longitudinal axis of the trocar body; a mating surface at the distal portion of the handle configured to mate with the engagement region of the access cannula; and a stop mate within the engagement region; wherein the trocar is configured to slide within the elongate cannula body so that the engagement region on the access cannula mates with the mating surface on the trocar to form a composite device in which the finger grip surface of the access cannula is oriented perpendicular to the handle gripping surface of the trocar when the stop on the access cannula is mated with the stop mate on the trocar. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of manipulating an interlocking trocar and access cannula tool configured to form a composite device, the method comprising:
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inserting the distal end of a trocar into an access cannula, wherein the trocar includes a proximal handle and the access cannula includes at least on finger grip; connecting the proximal end of the access cannula with the distal portion of the handle on the trocar to form a composite device, so that a stop on the access cannula engages a stop mate on the trocar to secure the finger grip extending from the elongate body of the access cannula oriented at a right angle to the handle of the trocar; and manipulating the composite device while gripping the handle of the trocar. - View Dependent Claims (10, 11, 12, 13)
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14. An interlocking trocar and access cannula tool configured to form a composite device, the tool comprising:
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an access cannula comprising; an access cannula handle at the proximal end of the access cannula; a finger grip extending from a distal portion of the access cannula handle, wherein the finger grip extends lateral to the access cannula; a threaded engagement region at the proximal end of the access cannula handle; and a stop extending from the proximal end region of the access cannula handle; and a trocar comprising; a handle at the proximal end of the trocar, the handle having a gripping surface; a threaded receiving region within the distal portion of the handle configured to mate with the threaded engagement region of the access cannula; and a stop mate within the engagement region configured to engage the stop on the access cannula handle; wherein the access cannula is configured to engage with the trocar to form a composite device so that the finger grip extending from the access cannula is oriented approximately perpendicularly to the handle of the trocar when the stop on the access cannula is mated with the stop mate on the trocar. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification