Disclosure of Invention
The invention aims to provide a fixing instrument, a manufacturing method thereof and a medical fixing device, which can improve the fixing effect of tissues and bones, reduce the abrasion of the tissues and the bones and prolong the service life of the fixing instrument.
To achieve the above object, the present invention provides a fixing device formed by weaving a string-like object, comprising: a ring portion comprising a wire loop for passage of a target tissue; the knot part is connected with the ring part and is used for abutting against a bone; the adjusting part is connected with the ring part and used for adjusting the size of the wire ring and tightening the wire ring to fix the target tissue and the bone in the using process.
The fixing apparatus provided by the invention has the beneficial effects that: the rope-shaped object is woven to form the ring part, the knot part and the adjusting part, the size of a wire loop of the ring part is adjusted through the adjusting part, the knot part fixes a target tissue and a bone, and the knot part formed by weaving the rope-shaped object can deform along with the surface shape of the bone when contacting with the bone so as to reduce a gap and increase the contact area and further improve the fixing effect of the tissue and the bone; the knot part formed by weaving the rope-shaped object has certain flexibility, so that the abrasion to bones can be effectively reduced; the knot part formed by weaving the rope-shaped object replaces a metal titanium plate, so that the abrasion of the wire in the pore of the metal titanium plate is avoided, and the service life of the fixing device is prolonged.
Optionally, the knot portion includes a knot ring and a coil wound around the knot ring. The beneficial effects are that: the knot part and the coil wound on the knot ring are beneficial to increasing the contact area of the knot part and the bone.
Optionally, the knot ring is an "o" -shaped knot ring, and the coil includes a first coil wound around the "o" -shaped knot ring. The beneficial effects are that: the contact area of the knot part and the skeleton is increased, and the fixing strength is increased.
Optionally, the knot ring is an "8" -shaped knot ring, and the coil includes a second coil wound around one of the "8" -shaped knot ring and a third coil wound around the other of the "8" -shaped knot ring. The beneficial effects are that: the 8-shaped knot ring is beneficial to further increasing the contact area of the knot part and the bone and increasing the fixing strength.
Optionally, the number of windings of the first coil is greater than or equal to 3 and less than or equal to 15. The beneficial effects are that: the distance between the coils is reduced, the contact area of the knot part and the skeleton is increased, and the fixing strength is improved.
Optionally, the number of winding turns of the second coil and the third coil is greater than or equal to 3 and less than or equal to 15. The beneficial effects are that: the distance between the coils is reduced, the contact area of the knot part and the skeleton is increased, and the fixing strength is improved.
Optionally, the loop portion is comprised of a two-wire loop. The beneficial effects are that: the double wire loop is advantageous in increasing the fixing strength compared to the single wire loop.
Optionally, the bifilar loops are parallel to each other.
Optionally, the two-wire loops cross through the centre of each other.
Optionally, the target tissue is human soft tissue, including ligaments, tendons or shoulder trivia.
In order to achieve the above object, the present invention further provides a method for manufacturing the above fixing device, comprising the steps of: s1 providing a hollow rope, the rope comprising rope segments, the rope segments comprising a first rope segment and a second rope segment; s2, the first rope segment penetrates through the first opening on the rope and penetrates out of the second opening on the rope along the direction of the second rope segment, and the bent part of the rope forms a center ring; s3 passing the first rope portion through the center loop and tightening the center loop to form a knot in the nesting portion of the rope; s4, the rope section passes through the knot ring and is wound on the knot ring to form a knot part; s5 passing the first and second rope portions through the knot in opposite directions, a portion passing through the knot forming an adjustment portion and another portion forming a loop portion.
The manufacturing method of the fixing apparatus provided by the invention has the beneficial effects that: manufacturing a fixing instrument, wherein the ring part, the knot part and the adjusting part are formed by weaving a rope-shaped object, the size of a wire loop of the ring part is adjusted through the adjusting part, so that a target tissue is fixed with a bone by the knot part, and the knot part formed by weaving the rope-shaped object can generate certain deformation along with the surface shape of the bone when contacting with the bone so as to reduce a gap and increase the contact area, thereby improving the fixing effect of the tissue and the bone; the knot part formed by weaving the rope-shaped object has certain flexibility, so that the abrasion to bones can be effectively reduced; the knot part formed by weaving the rope-shaped object replaces a metal titanium plate, so that the abrasion of the wire in the pore of the metal titanium plate is avoided, and the service life of the fixing instrument is prolonged.
Optionally, the step S4 includes: winding the first cord segment and the second cord segment together around the knot loop, the first cord segment and the second cord segment together forming a first loop.
Optionally, between step S3 and step S4, the method further includes: and penetrating a second rope segment from a third opening on the rope-shaped object along the reverse direction of the first rope segment, then penetrating from a fourth opening on the rope-shaped object, and tensioning the second rope segment to enable the nesting part of the rope-shaped object to form an 8-shaped knot.
Optionally, in the step S4, the winding around the knot ring includes: winding the first cord segment around one loop of the "8" shaped knot to form a second coil wound around the knot; winding the second rope segment around another loop of the "8" shaped knot to form a third coil wound around the knot.
Optionally, in the step S4, the first rope portion and the second rope portion are wound around the knot ring together, where the number of turns of the first rope portion and the second rope portion is greater than or equal to 3 and less than or equal to 15.
Optionally, the number of turns of the first rope portion wound around one ring of the 8-shaped knot ring is greater than or equal to 3 and less than or equal to 15, and the number of turns of the second rope portion wound around the other ring of the 8-shaped knot ring is greater than or equal to 3 and less than or equal to 15.
Optionally, the step S5 includes: passing the first rope segment and the second rope segment in parallel through the knot.
Optionally, the step S5 includes: and crossing the first rope segment and the second rope segment and then penetrating the knot ring.
Optionally, the step S5 includes threading the first rope segment into the second rope segment, then threading out, and passing through the knot ring; and the second rope segment penetrates into the first rope segment and then penetrates out, and penetrates through the knot ring.
Optionally, the step S5 includes passing the first rope segment into the second rope segment, and then passing the first rope segment through one ring of the 8-shaped knot ring; and the second rope section penetrates into the first rope section and then penetrates out, and penetrates through the other ring of the 8-shaped knot ring.
Optionally, the first rope segment penetrates into the second rope segment and then penetrates out of a fifth opening, and the fifth opening is located on the second rope segment and close to the knot portion; and the second rope section penetrates into the first rope section and then penetrates out of a sixth opening, and the sixth opening is positioned on the first rope section and is close to the knot part.
Optionally, the hollow rope-shaped object is a hollow rope woven by a wire, any part of the hollow rope includes a slit generated by weaving, and the slit is used for the first rope section or the second rope section to penetrate or penetrate out. The beneficial effects are that: the hollow rope formed by weaving the wires facilitates the penetration and the penetration of the rope end without arranging an opening for the penetration and the penetration at a specific position.
Optionally, a distance from the first opening to the second opening is equal to a distance from the third opening to the fourth opening. The beneficial effects are that: the sizes of the two rings of the 8-shaped knot ring are consistent.
Optionally, the fourth opening is adjacent to the second opening.
In order to achieve the above object, the present invention also provides a medical fixing device, comprising the above fixing apparatus,
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
The embodiment of the invention provides a fixing instrument, which solves the problems in the prior art.
FIG. 1 is a schematic view of a first embodiment of the fastening device of the present invention.
Fig. 2 is a schematic structural view of a fixing instrument according to a second embodiment of the present invention.
In some embodiments of the present invention, referring to fig. 1 and 2, the fixation instrument comprises a ring portion 1, the ring portion 1 being comprised of a two-wire loop comprising a first wire loop 11 and a second wire loop 12; during the use process, the target tissue, which may be a ligament, is passed through the centers of the first wire loop 11 and the second wire loop 12 and is pulled by the first wire loop 11 and the second wire loop 12 to the bone to be fixed; a connecting part 2, wherein the connecting part 2 is connected with the ring part 1, and the connecting part 2 is used for being abutted with bones; an adjusting part 3, wherein the adjusting part 3 comprises a first end 31 and a second end 32, the first end 31 and the second end 32 are respectively connected with the first wire loop 11 and the second wire loop 12, and the first end 31 and the second end 32 are stretched to adjust the size of the first wire loop 11 and the second wire loop 12 and fix the target tissue with the bone.
In some embodiments of the present invention, referring to fig. 1 and 2, the knot portion 2 is formed by winding a coil around the o-shaped knot ring 51 or the 8-shaped knot ring 52, and the knot portion 2 is used to fix a titanium plate in the prior art, thereby achieving better fixing effect, bone abrasion reduction effect and longer service life of a fixing device than the titanium plate.
In some embodiments of the present invention, the knot part 2 includes a knot loop and a coil wound around the knot loop, and the coil is wound on a rope of the knot loop in such a manner as to pass through the center of the knot loop repeatedly.
In some embodiments of the present invention, the knot comprises an "o" shaped knot 51 or an "8" shaped knot 52, but the shape of the knot is not limited thereto.
In some embodiments of the present invention, referring to fig. 1, the loop is an "o" shaped loop 51, and the coil includes a first coil 61 wound around the "o" shaped loop 51.
In some embodiments of the present invention, referring to fig. 2, the knot is a 8-shaped knot 52, the second coil 62 is wound around one of the 8-shaped knot 52, and the knot part 2 further comprises a third coil 63 wound around the other of the 8-shaped knot 52; the second coil 62 is wound around the string of the 8-shaped loop 52 so as to pass repeatedly through the center of one loop of the 8-shaped loop 52, and the third coil 63 is wound around the string of the 8-shaped loop 52 so as to pass repeatedly through the center of the other loop of the 8-shaped loop 52.
In some embodiments of the present invention, the first coil 61 has 3, 5, 8, 10 or 15 windings.
In some embodiments of the present invention, referring to fig. 1, the first coil 61 has a winding number of 10.
In some embodiments of the present invention, the second coil 62 and the third coil 63 are wound for 3, 5, 8, 10 or 15 turns.
In some embodiments of the present invention, referring to fig. 2, the second coil 62 and the third coil 63 are wound for 8 turns.
Fig. 13 is a schematic view of a structure in which two wire loops are parallel to each other according to an embodiment of the present invention.
FIG. 14 is a schematic diagram of a configuration in which two wire loops cross through the center of each other in an embodiment of the present invention.
In some embodiments of the present invention, referring to fig. 13 and 14, the ring portion 1 is composed of two wire loops, and specifically, the ring portion 1 includes the first wire loop 11 and the second wire loop 12.
In some embodiments of the present invention, referring to fig. 13, the double loops are parallel to each other, and in particular, the first loop 11 and the second loop 12 are parallel to each other without passing through the center of each other.
In some embodiments of the present invention, referring to fig. 14, the two wire loops cross each other through the center, specifically, the first wire loop 11 passes through the center of the second wire loop 12, or the second wire loop 12 passes through the center of the first wire loop 11.
In some embodiments of the invention, the length of the two-wire loop is adjustable and a self-locking function is realized.
In some embodiments of the invention, the fixation device is used to fix soft tissues of the human body, including but not limited to ligaments and tendons.
FIG. 3 is a schematic view of a step S1 of a method of manufacturing a fixing device according to a first embodiment of the present invention; FIG. 4 is a schematic view of a step S2 of a method of manufacturing a fixing device according to a first embodiment of the present invention; FIG. 5 is a schematic view illustrating the first string portion passing through the center loop in step S3 of the method of manufacturing the fixing apparatus according to the first embodiment of the present invention;
FIG. 6 is a schematic view showing the tightening of the center ring in step S3 of the manufacturing method of the fixing instrument according to the first embodiment of the present invention; FIG. 7 is a schematic view showing formation of a knot in step S3 of the method of manufacturing the fixing device according to the first embodiment of the present invention; fig. 8 is a schematic view of steps S4 and S5 of the method for manufacturing the fixing device according to the first embodiment of the present invention.
Embodiments of the present invention also provide a method for manufacturing a fastening device, including the following steps S1 to S5.
Referring to fig. 3, S1 provides a hollow rope comprising rope segments including a first rope segment 41 and a second rope segment 42, in particular, the first rope end 41 and the second rope end 42 are located at both sides of the rope bend.
Referring to fig. 4, S2 is to pass the first rope segment 41 through the first opening of the rope and out the second opening of the rope along the direction of the second rope segment 42, i.e. the direction a shown in the figure, and the bend of the rope forms a center loop.
Referring to fig. 5, 6 and 7, S3 passes the first cord segment 41 through the center loop and tightens the center loop to form the nesting portion of the cords into an "o" shaped knot 51.
Referring to fig. 8, S4 passes the rope portion through the "o" -shaped knot loop 51 and winds around the "o" -shaped knot loop 51 in the same direction to form a knot 2.
Referring to fig. 8, S5 reverses the first rope segment 41 and the second rope segment 42, passes through the "o" -shaped knot ring 51, and a portion passing through the "o" -shaped knot ring 51 forms an adjusting part 3 and the other portion forms a ring part 1.
In some embodiments of the present invention, referring to fig. 8, the step of S4 includes: the first rope portion 41 and the second rope portion 42 are jointly wound around the "o" -shaped knot 51, the first rope portion 41 and the second rope portion 42 jointly forming a first loop 61.
FIG. 9 is a schematic illustration of a second method of making a fixation device according to a second embodiment of the present invention, whereby a second strand segment is passed in reverse through a third opening in the strand and then out through a fourth opening in the strand; FIG. 10 is a schematic view showing the formation of an 8-shaped knot in accordance with the method of manufacturing the fixing device in accordance with the second embodiment of the present invention; FIG. 11 is a schematic view of a second embodiment of a method for manufacturing a fastening device according to step S4; fig. 12 is a schematic view of a step S5 of a method for manufacturing a fixing device according to a second embodiment of the present invention.
In some embodiments of the present invention, referring to fig. 9 and 10, between step S3 and step S4, there is further included: second cord segment 42 is reversed, shown as direction B, to pass through a third opening in the cord and then through a fourth opening in the cord, and second cord segment 42 is pulled taut such that the nesting portion of the cords forms an "8" shaped knot 52.
In some embodiments of the present invention, referring to fig. 11, in step S4, the winding around the knot ring includes: winding the first rope segment 41 around one loop of the 8-shaped knot 52 to form a second coil 62 wound around the 8-shaped knot 52; the second cord segment 42 is wrapped around the other loop of the "8" knot 52 to form a third coil 63 wrapped around the "8" knot 52.
In some embodiments of the present invention, in step S4, the first rope segment 41 and the second rope segment 42 are wound around the knot ring together for 3, 5, 8, 10 or 15 turns.
In some embodiments of the present invention, referring to fig. 8, in step S4, the sum of the number of turns of the first rope segment 41 and the second rope segment 42 wound around the "o" shaped knot 51 is 10.
In some embodiments of the invention, in step S4, the number of turns of winding the first rope segment 41 around one loop of the "8" shaped knot 52 is 3, 5, 8, 10 or 15, and the number of turns of winding the second rope segment 42 around the other loop of the "8" shaped knot 52 is 3, 5, 8, 10 or 15.
In some embodiments of the present invention, referring to fig. 12, in step S4, the number of turns of the first rope portion 41 wound around one ring of the "8" shaped knot 52 is 8, and the number of turns of the second rope portion 42 wound around the other ring of the "8" shaped knot 52 is 8.
In some embodiments of the present invention, referring to fig. 13, the step of S5 includes: the first rope portion 41 and the second rope portion 42 are parallelly passed through the knot so that the double loops are parallel to each other.
In some embodiments of the present invention, referring to fig. 14, the step S5 includes: the first and second rope portions 41 and 42 are crossed and then passed through the knot so that the two-wire loop crosses through the centers of each other.
In some embodiments of the present invention, the step S5 includes threading the first rope segment 41 into the second rope segment 42 and then out, and passing through the "o" shaped knot 51; the second rope segment 42 is threaded into the first rope segment 41 and then threaded out, and passes through the o-shaped knot ring 51.
In some embodiments of the invention, step S5 includes threading the first cord segment 41 into the second cord segment 42 and out through one loop of the "8" shaped knot 52; the second rope portion 42 is threaded into the first rope portion 41 and then threaded out, and threaded through the other loop of the 8-shaped knot 52.
In some embodiments of the invention, the first rope portion 41 passes into the second rope portion 42 and then out through a fifth opening located on the second rope portion 42 and near the knot portion 2; the second rope portion 42 penetrates into the first rope portion 41 and then passes out of a sixth opening, which is located on the first rope portion 41 and close to the knot portion 2.
In some embodiments of the invention, the hollow rope is a wire-braided hollow rope, and any part of the hollow rope comprises a slit resulting from the braiding, and the slit is used for the first rope segment or the second rope segment to pass in or out.
In some embodiments of the present invention, the distance between the first opening and the second opening is equal to the distance between the third opening and the fourth opening, and the two loops of the "8" -shaped knot formed in this way have the same size, so that the size of the two sides of the knot portion 2 formed based on the "8" -shaped knot is uniform.
In some embodiments of the present invention, the fourth opening is adjacent to the second opening.
The embodiment of the invention also provides a medical fixing device which comprises the fixing instrument.
Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations fall within the scope and spirit of the present invention as set forth in the following claims. Moreover, the invention as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.