Dave's Patent Content Factory
New Paragraph

Paragraphs

Clear
Actions Matter Content Para # Notes Modified
View Edit
Delete 		PER-24 In the illustrated embodiment, the surgeon has made an incision that permits access to a lateral surface of a distal end of a tibia and lateral surface of a proximal end of a talus of a patient’s foot. In addition, a surgeon has formed an osteotomy in the fibula 228 and retracted a bone fragment of the fibula 228 to gain access to the ankle. 416 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 Pins of four bone attachment features 828 (e.g., one or more tibial bone attachment features and one or more talus bone attachment features) have also been deployed to secure the first resection guide 1822 to the tibia 226 and the talus 222. Note that the first resection guide 1822 includes an alignment guide 1874 with a shaft 1878 inserted. A surgeon can now visually check manually, and/or with flouroscopy, a position of the first resection guide 1822 in relation to a mechanical axis 880 of the tibia 226. A surgeon can now form a curved osteotomy in a sagittal plane 262 using the first resection feature 1864 and a cutting tool such as a burr. 417 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 FIG. 21B illustrates the ankle joint after formation of a curved osteotomy and removal of the first resection guide 1822. In one embodiment, certain pins for bone attachment features 1828 such as those for the tibia 226 may remain in the bone. FIG. 21B illustrates that the curved osteotomy 2100 has been formed on or near a superior surface of the talus 222. In certain embodiments, this curved osteotomy 2100 can be used for or by other instruments during the surgical procedure. 418 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 In one embodiment, FIG. 21C illustrates a stage in which a second resection guide 1824 is positioned on a lateral side of the ankle. The second resection guide 1824 can be secured using one or more common pins that were used for the first resection guide 1822 and/or new pins may be deployed to secure the second resection guide 1824. In one embodiment, pins for bone attachment features 1828 in the tibia may be deployed using the bone attachment features 1828 at an angle that ensures that the second resection guide 1824 is securely coupled to the bone(s). In the illustrated embodiment, the second resection guide 1824 is positioned to resect a portion of an end of the tibia 226 in preparation for an ankle fusion. Next, a surgeon may form a second osteotomy, such as an angled curved osteotomy 2102. The angled curved osteotomy 2102 formed in the bone(s) may not be perpendicular to a mechanical axis 880 of the tibia 226. 419 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 In one embodiment, FIG. 21D illustrates a stage in which a first resection guide 1822 and a second resection guide 1824 have been removed. A curved osteotomy (e.g., first osteotomy) has been formed at the proximal end of the talus 222 and an angled curved osteotomy (e.g., second osteotomy) has been formed at the distal end of the tibia 226. 420 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 In one embodiment, the angled curved osteotomy is formed by configuring the second resection feature 1866 such that the opening(s) (e.g., curved slot and/or plurality of openings) that extend through the body 2002 do so at a first angle 1896. The first angle 1896 can be configured based on a bone model of one or more bones of the patient. The first angle 1896 of the opening(s) in the second resection feature 1866 guide a cutting tool to form an angled curved osteotomy in the tibia 226. 421 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 Alternatively, or in addition, a curved osteotomy 2100 can be formed by configuring the first resection feature 1864 such that the opening(s) (e.g., curved slot and/or plurality of openings) that extend through the body 1902 do so at a second angle 1898. The second angle 1898 can be configured based on a bone model of one or more bones of the patient. The second angle 1898 of the opening(s) in the first resection feature 1864 guide a cutting tool to form a curved osteotomy in the talus 222. 422 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 FIG. 21D illustrates one example of how the first resection feature 1864 and/or second resection feature 1866 can be configured to form a curved osteotomy and an angled curved osteotomy. In the illustrated embodiment, the first resection guide 1822 includes a first resection feature 1864 that guides a cutting tool to resect at least part of a talus 222 at a second angle 1898. Note that the second angle 1898 is perpendicular to the mechanical axis 880 (and parallel to a medial-lateral axis ML). The first resection feature 1864 enables a surgeon to form a curved osteotomy that can be referred to as a “straight cut”. The curved osteotomy curves within the sagittal plane 262 and extends into the bone parallel with the ML axis. 423 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 In the illustrated embodiment, the second resection guide 1824 includes a second resection feature 1866 that guides a cutting tool to resect at least part of a tibia 226 at a first angle 1896. Note that the first angle 1896 is not perpendicular (i.e., is oblique) to the mechanical axis 880 (and to a medial-lateral axis ML). The second resection feature 1866 enables a surgeon to form an angled curved osteotomy that can be referred to as an “angled cut”. The curved osteotomy curves within the sagittal plane 262 and extends into the bone at an angle in relation to the ML axis. 424 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 Said another way, the first resection feature 1864 extends perpendicularly from the medial side 1908 of the first resection guide 1822 to the lateral side 1910 of the first resection guide 1822 at the second angle 1898 and the second resection feature 1866 extends from the medial side 2008 of the second resection guide 1824 to the lateral side 2010 of the second resection guide 1824 at the first angle 1896. 425 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 In one embodiment, FIG. 21E illustrates a stage in which a first resection guide 1822 and a second resection guide 1824 have been removed. A curved osteotomy (e.g., first osteotomy) has been formed at the proximal end of the talus 222 and an angled curved osteotomy (e.g., second osteotomy) has been formed at the distal end of the tibia 226. The curved osteotomy and the angled curved osteotomy are reduced at the resection interface 884. Advantageously, a minimal amount of bone of the talus 222 and/or the tibia 226 has been removed and a stable, complete reduction is achieved. Note reference features, fixation pins, permanent and/or temporary fixation is omitted from the view in FIG. 21E but may be included in certain embodiments and/or may be added to hold the reduction place for healing and fusion. 426 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 FIG. 21E illustrates that the first angle 1896 and second angle 1898 have been selected, determined, defined (e.g., using bone models of the patient) such that reduction of the curved osteotomy and the angled curved osteotomy remediates a deformity of the patient. Note that in comparing FIGs. 21D to 21E, the alignment and/or position of the calcaneus 224 has been changed and the calcaneus 224 has been translated more in line with the mechanical axis 880 of the tibia 226. A first dome osteotomy (i.e., curved osteotomy) and a second dome osteotomy (i.e., angled curved osteotomy) have been brought together to provide a deformity correction. Those of skill in the art will appreciate that forming the curved osteotomy and/or the angled curved osteotomy without the aid of the first resection guide 1822 and/or second resection guide 1824 may have required resection of the bone(s) by manual free-hand. Advantageously, the reduction and subsequent fusion using the first resection guide 1822 and/or second resection guide 1824 can result in a more satisfactory fusion of an ankle joint. 427 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 FIG. 22 illustrates an exemplary system for an osteotomy 2200 using a medial approach, according to one embodiment. In one embodiment, the exemplary ankle fusion osteotomy system 2200 is specifically designed for use on a medial side of the patient’s ankle (e.g., using a medial approach). Those of skill in the art will appreciate that the same or a similar exemplary ankle fusion osteotomy system 2200 can be used on a lateral side of the patient’s ankle (e.g., using a lateral approach). Those of skill in the art will also appreciate that a surgical procedure that conducts an ankle fusion on an ankle from a medial or lateral approach generally includes steps to perform an osteotomy on the malleolus (medial or lateral depending on the approach) and retracting or holding a distal end of the malleolus out of the way for the osteotomy steps on the tibia 226 and/or talus 222. 428 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 The osteotomy system 2200 can include one or more fasteners 810 and/or two or more sets of fasteners (810a, 810b, 810c), one or more resection guides 2220, and zero or one or more complementary components 730. In the illustrated embodiment, the resection guides 2220 include a first resection guide 2222 and a second resection guide 2224. The resection guides 2220 may also include one or more of resection features 2226, bone attachment features 2228, bone engagement feature 2230, and/or landmark registration feature 2234. In certain embodiments, a bone engagement feature 2230 can include a bone engagement surface 2232. 429 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 While specific embodiments of complementary components 730 are not specifically shown here in relation to the osteotomy system 2200, those of skill in the art will appreciate that complementary components 730 can be similar in feature, design, implementation, configuration, and purpose as those described in relation to the osteotomy system 700 and can be used for the osteotomy system 2200. Thus, the osteotomy system 2200 can include one or more alignment guides 740, rotation guides 750, correction guides 760, compression guides 770, positioning guides 780, fixation guides 790, navigation guides 792, implants 794, or the like. 430 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 Either or both of the resection guides 2220 may be custom patient-specific resection guides made for a particular patient and/or for a particular surgical procedure. Various aspects of the resection guides 2220 may be patient-specific, including, but not limited to, an angle and/or orientation for a resection feature of the resection guide 2220, a position of the resection feature, a depth of the resection feature, a size of the resection guide 2220, a configuration and/or composition of a bone contacting surface such as a bone engagement surface of the resection guide 2220, and the like. 431 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 In one embodiment, a stop 886 can be implemented in the form of a distance of a resection feature 826 between an opening on an anterior side 838, 852 and an opening on the posterior side 840, 854. In one embodiment, a portion of the body 836,850 may be of a predetermined length just around the resection features 826, Alternatively, or in addition, the whole body may have the predetermined length to provide the stop 886. Those of skill in the art will appreciate the one or the other or both of the resection feature 826 may include this type of stop. 293 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 Alternatively, or in addition, another structure may be formed at or near the resection feature 826 and serve as a stop 886. In this format, the distance within the resection feature 826 combined with a particular length for the blade or bur of the cutting tool may serve as a stop 886. Advantageously, a surgeon using such a configured resection guides 820 need not check or monitor the depth when forming the osteotomy. The surgeon can simply insert the cutting tool until the tool abuts the resection feature 826 of the resection guide 820 (“bottoms out”). At this point, the surgeon knows the cutting tool has reached a prescribed depth and that tissue beyond the depth is preserved. 294 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 In the illustrated embodiment, a resection guard 870 is positioned at each end of the resection feature 826 of the tibial resection guide 822 and at each end of the resection feature 826a of the resection guard 870. Of course, the resection guard 870 may be positioned at other points within, along, or near the resection features 826. Advantageously, because the resection guides 820 can be manufactured to meet a specific patient’s anatomy, more precise placement and/or orientation of resection guards 870 can enable preservation of a joint of the patient and/or avoid resection of adjacent structure within the area of the joint. Those of skill in the art will appreciate that the use of one or more resection guards 870 may be optional and may depend on the user instructions 604 as to whether resection guards 870 are included, where they are positioned, oriented, and/or used. 295 Added by DJM Jan 2024 1/6/24, 10:01 PM
View Edit
Delete 		PER-24 Advantageously, the osteotomy system 800 can include a plurality of stops 886 and/or resection guards 870 that can assist a surgeon during the cutting in or between any of the planes of the foot and/or ankle. These stops 886 are configured to prevent a cutting tool from cutting tissue beyond a boundary defined at least partially using a bone model of at least a portion of a patient's foot and/or ankle. Those of skill in the art will appreciate that as an osteotomy is formed in one or both of the resection feature 826 and resection guards 870 are being used, the osteotomy will free the resection guard 870. For certain surgeons this may be undesirable. Advantageously, a surgeon can include in the user instructions 604 that specify whether or not to include stops 886 and/or resection guards 870, how many to include, where to position them, and the like. Thus, a surgeon can control how and where stops 886 may be used. 296 Added by DJM Jan 2024 1/6/24, 10:01 PM

Page 4 of 23, showing 20 record(s) out of 459 total