Retention devices, lattices and related systems and methods

Abstract

A woven retention device that is configured to receive a fastener in a bone hole can be configured to promote bone ingrowth and impede biofilm formation. The woven retention device can be made of woven filaments that outline apertures of varying sizes and shapes and can serve as an interface between the fastener and the bone material. In a first relaxed state, the interwoven filaments can outline apertures of varying sizes and shapes within a predetermined range and in a second constricted state inside the bone hole with the fastener the interwoven filaments can outline apertures of decreased area that still fall within the predetermined range. The woven retention device can be configured to allow for optimal bone growth while at the same time minimizing the likelihood that biofilm forms thereon.

What is claimed is: 
     
         1 . A woven retention device to promote bone ingrowth and impede biofilm formation, the woven retention device comprising:
 a sleeve body comprising a plurality of interwoven filaments;   a proximal end that is proximal to the sleeve body and that is configured to receive a fastener; and   a distal end that is distal to the sleeve body on an opposing side of the proximal end,   wherein in a relaxed state of the woven retention device, the interwoven filaments outline pores, each of the pores having a pore size along a plane of the tubular lattice, each pore size within a range of 200-1000 μm,   wherein in a constricted state of the woven retention device, the pore size changes as a function of a diameter of the sleeve body, the pore size remaining within the range of 200-1000 μm, and   wherein the pores are configured to promote bone ingrowth.   
     
     
         2 . The woven retention device of  claim 1 , wherein an area of the pores changes dynamically by interwoven filaments translating with respect to each other without substantial deforming of the interwoven filaments. 
     
     
         3 . The woven retention device of  claim 2 , wherein the area of the pores changes by a function of a braid of the filaments. 
     
     
         4 . The woven retention device of  claim 3 , wherein the pore size is defined along a long axis or a major axis of the sleeve body. 
     
     
         5 . The woven retention device of  claim 4 , wherein the interwoven filaments define a plurality of protuberances distributed on an interior surface and an exterior surface of the tubular lattice at a predetermined spatial relationship. 
     
     
         6 . The woven retention device of  claim 5 , wherein in the relaxed state each pore is shaped as one of a diamond, a rectangle, a square, or a parallelogram. 
     
     
         7 . A woven retention device to promote bone growth, the woven retention device comprising:
 a sleeve body comprising a plurality of interwoven filaments that form a substantially tubular lattice having a plurality of pores having a predetermined pore size, the plurality of pores defined by a plurality of adjacent filaments of the plurality of interwoven filaments,   wherein the woven retention device is configured to move between a relaxed state and a constricted state,   wherein the pore size falls within a predetermined range and remains substantially within the predetermined range when the woven retention device is in the relaxed state and the constricted state, and   wherein the pore size promotes bone growth in the pores.   
     
     
         8 . The woven retention device of  claim 7 , wherein the pore size is defined by a 3-dimensional distance between surfaces of the plurality of adjacent filaments. 
     
     
         9 . The woven retention device of  claim 7 , wherein the pores define a parallelepiped between the plurality of adjacent filaments. 
     
     
         10 . The woven retention device of  claim 7 , wherein the 3-dimensional distance between surfaces of the plurality of adjacent filaments is a length between opposing diagonal corners of the pores. 
     
     
         11 . The woven retention device of  claim 7 , wherein the pore size is within the range of 200 μm and 1000 μm. 
     
     
         12 . The woven retention device of  claim 7 , wherein the pore size is about 600 μm. 
     
     
         13 . The woven retention device of  claim 7 , wherein the pore size is defined when the woven retention device is in the relaxed state. 
     
     
         14 . The woven retention device of  claim 7 , further comprising a plurality of protuberances distributed on an interior surface and an exterior surface of the tubular lattice at a predetermined spatial relationship. 
     
     
         15 . The woven retention device of  claim 7 , wherein the pore size is defined along a long axis or a major axis of the sleeve body. 
     
     
         16 . The woven retention device of  claim 7 , wherein the pore size remains in the range of 200 μm and 1000 μm when a diameter of the sleeve body changes. 
     
     
         17 . A kit, comprising:
 a first woven retention device having a first diameter, the first woven retention device having a first sleeve body comprising a first plurality of interwoven filaments that form a substantially tubular lattice having a plurality of first pores; and   a second woven retention device having a second diameter, the second woven retention device having a second sleeve body comprising a second plurality of interwoven filaments that form a substantially tubular lattice having a plurality of second pores,   wherein the second diameter is greater than the first diameter, and   wherein the first pores and the second pores have substantially the same pore size, and   wherein the pore size is within the range of 200 μm and 1000 μm.   
     
     
         18 . The kit of  claim 17 , wherein the woven retention device is configured to move between a relaxed state and a constricted state, and wherein the pore size remains substantially within the range when the woven retention device is in the relaxed state and the constricted state. 
     
     
         19 . The kit of  claim 18 , further comprising a third woven retention device having a third diameter, the third woven retention device having a third sleeve body comprising a third plurality of interwoven filaments that form a substantially tubular lattice having a plurality of third pores, wherein, the third diameter is greater than the second diameter, and wherein a pore size of the third pores is substantially the same as the pore size of the first pores and the pore size of the second pores. 
     
     
         20 . The kit of  claim 19 , wherein the first pores, the second pores, and the third pores are all defined by a 3-dimensional distance between surfaces of adjacent interwoven filaments of the respective plurality of interwoven filaments.