Medical suturing device, a single-strike die mechanism, and a method of using said die mechanism for forming the medical suturing device
First Claim
1. A single-strike die mechanism for securing a surgical suture in a hollow barrel end of a surgical needle, said mechanism comprising:
- a cam drive ring having a radial opening therein;
cam drive ring mounting means for mounting said cam drive ring for rotation about a central axis;
drive means for rotating said cam drive ring;
a plurality of crimping dies;
a die guide for mounting said plurality of crimping dies for linear movement in a radial direction with respect to the central axis, said plurality of crimping dies being mounted symmetrically in said die guide;
means linking said cam drive ring and each of said plurality of crimping dies, wherein said cam drive ring need be rotated in only one direction by said drive means to actuate said linking means to drive said crimping dies in the radial direction; and
control means for controlling rotation of said cam drive ring by said drive means in dependence on the force applied radially at the hollow barrel end of a surgical needle by said crimping dies.
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0 Petitions
Accused Products
Abstract
A single-strike die mechanism includes a rotatable cam drive ring driven to impart through a cam mechanism linear motion to at least three crimping dies. The crimping dies are symmetrically arranged within a die guide and simultaneously actuated to move in a radial direction toward a centerline of a surgical needle. A surgical suture is axially inserted within a hollow barrel end of the needle, and the barrel end is crimped by the crimping dies to secure the suture therein. A method for operating the single-strike die mechanizes the procedure for securing the suture within the barrel end of the needle.
191 Citations
29 Claims
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1. A single-strike die mechanism for securing a surgical suture in a hollow barrel end of a surgical needle, said mechanism comprising:
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a cam drive ring having a radial opening therein; cam drive ring mounting means for mounting said cam drive ring for rotation about a central axis; drive means for rotating said cam drive ring; a plurality of crimping dies; a die guide for mounting said plurality of crimping dies for linear movement in a radial direction with respect to the central axis, said plurality of crimping dies being mounted symmetrically in said die guide; means linking said cam drive ring and each of said plurality of crimping dies, wherein said cam drive ring need be rotated in only one direction by said drive means to actuate said linking means to drive said crimping dies in the radial direction; and control means for controlling rotation of said cam drive ring by said drive means in dependence on the force applied radially at the hollow barrel end of a surgical needle by said crimping dies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A single-strike die mechanism for securing a surgical suture in a hollow barrel end of a surgical needle, said mechanism comprising:
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a cam drive ring having a radial opening; a cam drive ring mounting means for mounting said cam drive ring for rotation about a central axis; drive means for rotating said cam drive ring; a plurality of crimping dies; a die guide for mounting said plurality of crimping dies for linear movement in a radial direction with respect to said central axis, said plurality of crimping dies being mounted symmetrically in said die guide; a camming mechanism linked to each said crimping die;
.urging means linked to each said plurality of crimping dies to urge said crimping dies radially outwardly, wherein said cam drive ring need be driven in only one direction by said drive means to operate said camming mechanism and drive said plurality of crimping dies radially inwardly; and control means for controlling rotation of said cam drive ring by said drive means in dependence on the force applied radially at the hollow barrel end of a surgical needle by said crimping dies. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A single-strike die mechanism for securing a surgical suture in a hollow barrel end of a surgical needle, said mechanism comprising:
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a cam drive ring having a radial opening therein; cam drive ring mounting means for mounting said cam drive ring for rotation about a central axis; drive means for rotating said cam drive ring; a plurality of crimping dies; a die guide for mounting said plurality of crimping dies for linear movement in a radial direction with respect to the central axis, said plurality of crimping dies being mounted symmetrically in said die guide; means linking said cam drive ring and each of said plurality of crimping dies, wherein said cam drive ring need be rotated in only one direction by said drive means to actuate said linking means to drive said crimping dies in the radial direction; and computer control means programmed to control rotation of said cam drive ring by said drive means in dependence upon at least one of the diameter of the hollow barrel end of the surgical needle in which a surgical suture is secured, the wall thickness of the barrel end, the material of the surgical needle, the material of the suture, the structure of the suture, and the lubricity of the surface of the suture inserted into the hollow barrel end. - View Dependent Claims (20, 21, 22, 23)
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24. A single-strike die mechanism for securing a surgical suture in a hollow barrel end of a surgical needle, said mechanism comprising:
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a cam drive ring having a radial opening; a cam drive ring mounting means for mounting said cam drive ring for rotation about a central axis; drive means for rotating said cam drive ring; a plurality of crimping dies; a die guide for mounting said plurality of crimping dies for linear movement in a radial direction with respect to said central axis, said plurality of crimping dies being mounted symmetrically in said die guide; a camming mechanism linked to each said crimping die; urging means linked to each said plurality of crimping dies to urge said crimping dies radially outwardly, wherein said cam drive ring need be driven in only one direction by said drive means to operate said camming mechanism and drive said plurality of crimping dies radially inwardly; and computer control means programmed to control rotation of said cam drive ring by said drive means in dependence upon at least one of the diameter of the hollow barrel end of the surgical needle in which a surgical suture is secured, the wall thickness of the barrel end, the material of the surgical needle, the material of the suture, the structure of the suture, and the lubricity of the surface of the suture inserted into the hollow barrel end. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification