Closure for open ended medical implant
OwnerRoger P. Jacksoninventor
Life of this patent
Estimating the term…
Abstract
A closure for use with an open headed medical implant with a pair of inwardly threaded arms. The closure is lozenge-shaped having a pair of opposed cylindrical sections that have outwardly threaded surfaces that are discontinuous therebetween. The closure also has a central bore receiving a set screw in use. Tools for installing the closure include a tool with a head having a channel receiving the closure and wings on opposite sides of the channel that have outer surfaces that are threaded so as to compliment and complete the threads on the outside of the closure when the tool is thereon so as to provide a continuous circumferential thread for installation.
Claims23
A closure for an open ended medical implant having a pair of spaced and internally threaded arms;
- said closure comprising:
- a) a closure body having a truncated cylindrical shape with at least one sector removed;
- b) said body having a radially outer surface that is threaded with a discontinuous thread;
- said thread being sized, shaped and positioned to threadably mate with threaded arms associated with an implant.
A closure for an open ended medical implant;
- said closure comprising;
- a) a closure body having a pair of opposed cylindrical sectors with each of said sectors having radially outward curved surfaces with threads thereon sized and shaped to threadably mate with threads of the medical implant;
- said sector threads being discontinuous with each other.
A closure and tool combination comprising:
- a) a truncated cylindrical body with spaced sectors having threads on outer surfaces thereof and with said threads being discontinuous between said sectors;
- and
- b) an installation tool having a handle for rotating and a head;
- said head receiving said body and having spaced wings that are positioned on opposite sides of said body when received in said head;
- said wings having outer surfaces that are threaded and compliment the threads of said body sectors so as to form a continuous thread about said body for facilitating installation of said body.
A closure for an open ended medical implant having a pair of spaced and internally threaded arms;
- said closure comprising:
- a) a closure body having a thread on a radially outward facing surface;
- said body thread sized and located to be adapted to mate with internal threads on the implant arms;
- b) said body having a central threaded bore;
- c) said body being cylindrical in shape except with opposed equal segments removed such that the body thread is discontinuous;
- and
- d) a threaded set screw sized and shaped to be received in said threaded bore in use.
A closure for an open ended medical implant having a pair of spaced and internally threaded arms;
- said closure comprising:
- a) a closure body having a thread on a radially outward facing surface;
- said body thread sized and located to be adapted to mate with internal threads on the implant arms;
- b) said body thread being in two opposed equal portions extending in total substantially less than 360° about said body;
- c) said body having a central threaded bore;
- and
- d) a threaded set screw sized and shaped to be received in said threaded bore in use.
A closure for an open ended medical implant having a pair of spaced and internally threaded arms;
- said closure comprising:
- a) a closure body having a thread on a radially outward facing surface;
- said body thread sized and located to be adapted to mate with internal threads on the implant arms;
- b) said body having a central threaded bore;
- c) a said body being lozenge-shaped;
- and
- d) a threaded set screw sized and shaped to be received in said threaded bore in use.
A closure for an open ended medical implant having a pair of spaced and internally threaded arms;
- said closure comprising:
- a) a closure body having a truncated cylindrical shape with at least one sector removed;
- b) said body having a radially outer surface that is threaded with a discontinuous thread that is sized and shaped to threadably mate with the threaded arms of the implant in use;
- and
- c) said body being lozenge-shaped.
A closure for an open ended medical implant having a pair of spaced and internally threaded arms;
- said closure comprising:
- a) a closure body having a truncated cylindrical shape with at least one sector removed;
- b) said body having a radially outer surface that is threaded with a discontinuous thread;
- c) said body having a pair of equal and opposite sectors removed;
- d) said body including an axially extending pass through and threaded bore;
- and further including
- e) a set screw being sized and shaped to be operably received in said bore during use.
A medical implant system comprising:
- a) a medical implant having an open channel positioned between a pair of arms and being sized and shaped to receive a rod member;
- said arms being spaced and having threaded internal facing surfaces;
- b) a closure body having a radially outward threaded surface;
- said closure body having an axially aligned pass through threaded bore;
- c) said closure body threaded surface being discontinuous;
- and
- d) a threaded set screw operably received in said bore during installation and being sized and shaped to have a tip extending from said bore when fully installed.
A medical implant system comprising:
- a) a medical implant having an open channel positioned between a pair of arms and being sized and shaped to receive a rod member;
- said arms being spaced and having threaded internal facing surfaces;
- b) a closure body having a radially outward threaded surface;
- said closure body having an axially aligned pass through threaded bore;
- c) said closure body including two opposed sectors of a cylinder with a radially outward surface of each of said sectors being threaded so as to be mateable with the threads of said arm facing surfaces;
- and
- d) a threaded set screw operably received in said bore during installation and being sized and shaped to have a tip extending from said bore when fully installed.
A medical implant system in combination with a closure installation tool comprising:
- a) a medical implant having an open channel positioned between a pair of arms and being sized and shaped to receive a rod member;
- said arms being spaced and having threaded internal facing surfaces;
- b) a closure body having a radially outward threaded surface;
- said closure body having an axially aligned pass through threaded bore;
- c) a threaded set screw operably received in said bore during installation and being sized and shaped to have a tip extending from said bore when fully installed;
- wherein the tool includes:
- d) a handle for turning by a user;
- e) a head coaxially attached to said handle;
- said head including a channel for snugly receiving said closure body and a pair of wings on opposite sides of said channel;
- each of said wings having a radially outward surface with a thread thereon;
- said wing threads and said closure body threads cooperating to form a complete circumferential thread to facilitate installation of said closure body in said implant.
Dependencies are inferred from the claim text.