Needle guide
First Claim
1. A needle guide, comprisinga base extending in an axial direction and having a surface defining an orientation plane;
- a support member on said base defining a needle guide path inclined at an angle relative to said orientation plane, said needle guide path intersecting said orientation plane at a distance in said axial direction from a reference point on said base;
a locator on said base at a selected distance in said axial direction from said reference point, said selected distance being related to said angle and greater than said distance; and
a recess extending in said axial direction through said base and having an open end, whereby said base may be moved in said axial direction from a first position with a needle positioned in said needle guide path so as to extend through said recess to a second position with the needle not extending through said recess and not positioned in said needle guide path.
1 Assignment
0 Petitions
Accused Products
Abstract
A needle guide ensures that an angiographic needle is inserted into a patient'"'"'s femoral artery at a prescribed location, angle and direction. The needle guide includes an elongated base having a recess on one end defined by a pair of projecting fingers, and a support member on the upper surface of the base adjacent to the recess. The support member has a support surface which is inclined at a prescribed angle with respect to a locating plane defined by the base. The length of the projecting fingers help position the support surface at a spaced distance from the patient'"'"'s inguinal crease, while a channel in the support surface cradles and guides the angiographic needle at the prescribed angle as it is inserted into the femoral artery. The needle guide may include a second recess defined by a pair of projecting fingers at the opposite end of the base and another support member adjacent thereto. This other support member may have a support surface inclined at an angle relative to the locating plane of the base which is different from the angle the first support member makes with the locating plane of the base. Thus, depending upon the direction in which it is oriented, the needle guide may be used to insert a needle at one of two different angles.
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Citations
20 Claims
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1. A needle guide, comprising
a base extending in an axial direction and having a surface defining an orientation plane; -
a support member on said base defining a needle guide path inclined at an angle relative to said orientation plane, said needle guide path intersecting said orientation plane at a distance in said axial direction from a reference point on said base; a locator on said base at a selected distance in said axial direction from said reference point, said selected distance being related to said angle and greater than said distance; and a recess extending in said axial direction through said base and having an open end, whereby said base may be moved in said axial direction from a first position with a needle positioned in said needle guide path so as to extend through said recess to a second position with the needle not extending through said recess and not positioned in said needle guide path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A needle guide, comprising
a base extending in an axial direction and having a surface defining an orientation plane; -
a first support member on said base defining a first needle guide path inclined at a first angle relative to said orientation plane, said first needle guide path intersecting said orientation plane at a first distance in said axial direction from a reference point on said base; a first locator on said base at a selected distance in said axial direction from said reference point, said selected distance being related to said first angle and greater than said first distance; a second support member on said base defining a second needle guide path inclined at a second angle relative to said orientation plane, said second needle guide path intersecting said orientation plane at a second distance in said axial direction from said reference point; and a second locator on said base at a predetermined distance in said axial direction from said reference point, said predetermined distance being related to said second angle and greater than said second distance. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification