CN117064467A - Meniscus suture nail assembly and meniscus suture system - Google Patents
Meniscus suture nail assembly and meniscus suture system Download PDFInfo
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- CN117064467A CN117064467A CN202311058765.6A CN202311058765A CN117064467A CN 117064467 A CN117064467 A CN 117064467A CN 202311058765 A CN202311058765 A CN 202311058765A CN 117064467 A CN117064467 A CN 117064467A
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- 230000005499 meniscus Effects 0.000 title claims abstract description 67
- 238000005381 potential energy Methods 0.000 claims abstract description 38
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000002513 implantation Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 230000004660 morphological change Effects 0.000 claims description 6
- 230000035876 healing Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 10
- 239000007943 implant Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0491—Sewing machines for surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/064—Surgical staples, i.e. penetrating the tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0401—Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors
- A61B2017/0446—Means for attaching and blocking the suture in the suture anchor
- A61B2017/0448—Additional elements on or within the anchor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/064—Surgical staples, i.e. penetrating the tissue
- A61B2017/0646—Surgical staples, i.e. penetrating the tissue for insertion into cartillege, e.g. meniscus
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
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- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Rheumatology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a meniscus suture nail assembly and a meniscus suture system, wherein the meniscus suture nail assembly is used for suturing a target part, the target part is provided with a first side and a second side which are opposite, and the meniscus suture nail assembly comprises at least one self-tightening suture unit; the self-tightening suture unit comprises a suture and an elastic suture nail; the elastic staples are arranged on the first side; the elastic stitching nail comprises an elastic part and two connecting ends, wherein the elastic part has elastic potential energy; in one of the self-tightening suture units, the suture is connected with the two connecting ends respectively and used for penetrating to the second side; the elastic part is used for releasing the elastic potential energy so as to drive the two connecting ends to relatively move and/or drive the elastic part to deform, thereby retracting the suture line towards the direction of the first side. So configured, the loose suture can be cinched, the opening of the meniscal tear is reduced, and healing of the meniscus is accelerated.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a meniscus suturing nail assembly and a meniscus suturing system.
Background
The conventional meniscus suture device has a structure that an inserter contains a suture nail and a suture thread, the suture thread connects the suture nails in series, two suture nails are implanted at different positions of a meniscus through two times of firing, and then the suture thread is tightened to perform the suture operation of the meniscus. However, the suture may loose after knotting, and the binding force of the suture to the meniscus is reduced, which may lead to cleavage of the meniscus wound, increase the healing time of the meniscus or directly lead to failure of the meniscus to heal.
Disclosure of Invention
The invention aims to provide a meniscus suture nail assembly and a meniscus suture system, which are used for solving the problem that the suture line of the traditional meniscus suture nail is easy to loosen.
In order to solve the above technical problems, the present invention provides a meniscus suture nail assembly for suturing a target site, the target site having a first side and a second side opposite to each other, the meniscus suture nail assembly including at least one self-tightening suture unit; the self-tightening suture unit comprises a suture and an elastic suture nail; the elastic staples are arranged on the first side; the elastic stitching nail comprises an elastic part and two connecting ends, wherein the elastic part has elastic potential energy;
in one of the self-tightening suture units, the suture is connected with the two connecting ends respectively and used for penetrating to the second side; the elastic part is used for releasing the elastic potential energy so as to drive the two connecting ends to relatively move and/or drive the elastic part to deform, thereby retracting the suture line towards the direction of the first side.
Optionally, the meniscus suture nail assembly comprises at least two self-tightening suture units, wherein the sutures of all the self-tightening suture units are arranged according to a preset sequence, and the tail ends of the sutures positioned at the position of the previous sequence in the preset sequence are connected with the head ends of the sutures positioned at the position of the next adjacent sequence in the preset sequence to form a suture connector.
Optionally, the predetermined sequence includes a first position and a last position, the tail end of the suture of the last position being threaded to the first side and connected to the elastic staple of a first one of the self-tightening suture units corresponding to the first position.
Optionally, the predetermined sequence includes a first position, the head end of the suture of the first position being secured by a intertwining knot.
Optionally, at least one of the self-tightening suture units comprises more than two of the sutures, the positions of the self-tightening suture units corresponding to the more than two sutures being repeated in the predetermined sequence.
Optionally, the meniscus suture pin assembly comprises more than three self-tightening suture units, the predetermined sequence comprises a first position, a middle position and a last position; the first position corresponds to a first one of the self-tightening suture units located at a head of the meniscal suture assembly, the last position corresponds to a last one of the self-tightening suture units located at a tail of the meniscal suture assembly, and the intermediate position corresponds to the self-tightening suture unit between the first one of the self-tightening suture units and the last one of the self-tightening suture units;
the tail end of the suture at the first position is connected with the head end of the suture at the adjacent intermediate position and is used for forming a U shape or a V shape together at the target position;
the tail end of the suture at the intermediate position is connected with the head end of the suture at the next adjacent sequence position in the predetermined sequence and is used for forming a U shape or a V shape together at the target position; the head end of the suture at the middle position is connected with the tail end of the suture at the position of the next sequence in the preset sequence and is used for forming a U shape or a V shape together at the target position;
the head end of the suture at the final position is connected with the tail end of the suture at the adjacent intermediate position and is used for forming a U shape or a V shape together at the target position.
Optionally, the number of strands of the suture of at least one self-tightening suture unit located between the first and last self-tightening suture units is twice the number of strands of the suture of the first or/and last self-tightening suture unit.
Optionally, the suture connector is integrally formed.
Optionally, the elastic part stores elastic potential energy based on a morphological change of the elastic part caused by pulling the suture line towards the second side; the morphological changes generated when the elastic portion stores elastic potential energy include axial bending and/or axial compression.
Optionally, the elastic portion includes at least one of an axially bendable spring, an axially bendable rod, an axially bendable tab, an axially compressible spring, and a double spring.
Optionally, the connection mode of the suture and the connection end comprises movable winding or penetrating; in one self-tightening suture unit, the suture is integrally formed into a whole, and sequentially and movably wound or penetrated at the two connecting ends.
Optionally, the connecting end is annular, so as to be used for the suture to pass through; or the connecting end and the elastic part form a hollow spiral shape for the suture to pass through.
To solve the above technical problem, the present invention also provides a meniscus suture system, which comprises the meniscus suture nail assembly as described above, and further comprises an implantation device.
In summary, in the meniscus suture nail assembly and the meniscus suture system provided by the invention, the meniscus suture nail assembly is used for suturing a target part, the target part is provided with a first side and a second side which are opposite, and the meniscus suture nail assembly comprises at least one self-tightening suture unit; the self-tightening suture unit comprises a suture and an elastic suture nail; the elastic staples are arranged on the first side; the elastic stitching nail comprises an elastic part and two connecting ends, wherein the elastic part has elastic potential energy; in one of the self-tightening suture units, the suture is connected with the two connecting ends respectively and used for penetrating to the second side; the elastic part is used for releasing the elastic potential energy so as to drive the two connecting ends to relatively move and/or drive the elastic part to deform, thereby retracting the suture line towards the direction of the first side.
With the movement of the human body after implantation, the tearing opening of a target part such as a meniscus can be prone to open, and the suture can be loose, but the invention is based on the arrangement of at least one self-tightening suture unit, and the elastic potential energy is released through the elastic part, so that a certain tension can be provided for the suture, the loose suture is tightened, the opening of the tearing opening of the meniscus is reduced or avoided, and the healing of the meniscus is accelerated.
Drawings
Those of ordinary skill in the art will appreciate that the figures are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention. Wherein:
FIG. 1 is a schematic view of a meniscal staple assembly of a first embodiment of the present invention;
FIG. 2 is a schematic illustration of an implantation application of a meniscal staple assembly according to a first embodiment of the present invention;
FIG. 3 is a schematic illustration of an implantation application of a meniscal staple assembly according to a second embodiment of the present invention;
FIG. 4 is a schematic illustration of an implantation application of a meniscal staple assembly of a third embodiment of the present invention;
FIG. 5 is a schematic view of a meniscal staple assembly of a fourth embodiment of the present invention;
FIG. 6 is a schematic illustration of an implantation application of a meniscal staple assembly of a fourth embodiment of the present invention;
FIG. 7 is a schematic illustration of an implantation application of a meniscal staple assembly according to a fifth embodiment of the present invention
FIG. 8 is a schematic view of a meniscal suturing system of an embodiment of the present invention;
FIG. 9 is an axial cross-sectional schematic view of a meniscal suturing system of an embodiment of the present invention;
FIG. 10 is a schematic view of a depth stop sleeve according to an embodiment of the present invention;
FIG. 11 is a schematic view of a handle assembly according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a pushing assembly according to an embodiment of the present invention.
In the accompanying drawings:
100-self-tightening suture unit; 110-suture; 120-elastic staples; 121-an elastic part; 122-connection end; 130-suture connectors; 200-implanting a device; 210-a handle assembly; 211-conveying pipes; 212-a handle; 213-button holes; 214-slot groove; 220-pushing component; 221-an inner core; 222-push button; 230-accommodating space; 240-a depth-limiting sleeve; 900-target site; 901-first side; 902-a second side; 910-crack.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific embodiments thereof in order to make the objects, advantages and features of the invention more apparent. It should be noted that the drawings are in a very simplified form and are not drawn to scale, merely for convenience and clarity in aiding in the description of embodiments of the invention. Furthermore, the structures shown in the drawings are often part of actual structures. In particular, the drawings are shown with different emphasis instead being placed upon illustrating the various embodiments.
As used in this disclosure, the singular forms "a," "an," "the," and "the" include plural referents, the term "or" is generally used in the sense of comprising "and/or" and the term "several" is generally used in the sense of comprising "at least one," the term "at least two" is generally used in the sense of comprising "two or more," and, furthermore, the terms "first," "second," "third," are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance or quantity of technical features indicated. Thus, a feature defining "first," "second," "third," or the like, may explicitly or implicitly include one or at least two such features, with "one end" and "another end" and "proximal end" and "distal end" generally referring to the corresponding two portions, including not only the endpoints. The terms "proximal" and "distal" are defined herein with respect to an implant device having one end for insertion into a human body and a manipulation end extending outside the body. The term "proximal" refers to a position closer to the manipulation end of the implant device that extends outside the body, and the term "distal" refers to a position closer to the end of the implant device that is to be inserted into the body and thus further from the manipulation end of the implant device. Alternatively, in a manual or hand-operated application scenario, the terms "proximal" and "distal" are defined herein with respect to an operator, such as a surgeon or clinician. The term "proximal" refers to a location closer to the operator, and the term "distal" refers to a location closer to the implant device and thus farther from the operator. Furthermore, as used in this disclosure, "mounted," "connected," and "disposed" with respect to another element should be construed broadly to mean generally only that there is a connection, coupling, mating or transmitting relationship between the two elements, and that there may be a direct connection, coupling, mating or transmitting relationship between the two elements or indirectly through intervening elements, and that no spatial relationship between the two elements is to be understood or implied, i.e., that an element may be in any orientation, such as internal, external, above, below, or to one side, of the other element unless the context clearly dictates otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. Furthermore, directional terms, such as above, below, upper, lower, upward, downward, left, right, etc., are used with respect to the exemplary embodiments as they are shown in the drawings, upward or upward toward the top of the corresponding drawing, downward or downward toward the bottom of the corresponding drawing.
The invention aims to provide a meniscus suture nail assembly and a meniscus suture system, which are used for solving the problem that the suture line of the traditional meniscus suture nail is easy to loosen. The following description refers to the accompanying drawings.
Referring to fig. 1 and 2, embodiments of the present invention provide a meniscal staple assembly for suturing a target site 900, such as a meniscal or a meniscal prosthesis having a slit 910, and related structures. The target portion 900 has a first side 901 and a second side 902 opposite to each other, and it should be noted that the first side 901 and the second side 902 refer to opposite sides along the splitting direction of the split 910, and in the example shown in fig. 2, the splitting direction of the split 910 is approximately along the up-down direction in the drawing, so that the first side 901 and the second side 902 refer to the up-down sides of the target portion 900. In particular, although the first side 901 is shown on the upper side in fig. 2, in practice, the first side 901 and the second side 902 are not vertically separated, and in other embodiments, the first side 901 may be on the lower side and the second side 902 may be on the upper side. In some embodiments, the first side 901 refers to the side proximal to the physician.
The meniscal staple assembly includes at least one self-cinching suture unit 100, the self-cinching suture unit 100 including a suture 110 and an elastic staple 120; the elastic staples 120 are adapted to be arranged at the first side 901; the elastic stitching nail 120 comprises an elastic part 121 and two connecting ends 122, wherein the elastic part 121 has elastic potential energy;
in one self-tightening suture unit 100, the suture 110 is connected to two of the connecting ends 122 and is used to pass through to the second side 902; the elastic portion 121 is configured to release the elastic potential energy, so as to drive the two connection ends 122 to relatively move and/or drive the elastic portion 121 to deform, thereby retracting the suture 110 toward the first side 901.
As shown in FIG. 2, when the elastic potential energy of the elastic portion 121 is released, tension is applied to the suture 110, such that the suture 110 is pulled in the direction of the first side 901, and thus the suture 110 can apply a closing force to the slit 910, even if the meniscus suture nail assembly moves with the human body after implantation, the slit 910 tends to open, or the suture 110 gradually loosens with time, the elastic portion 121 can continuously apply tension to the suture 110, thereby reducing or avoiding the opening of the slit 910 and accelerating the healing of the meniscus.
In order to achieve fixation, the meniscal suture generally needs at least two suture units to achieve fixation, and the meniscal suture assembly provided in this embodiment may include at least one self-tightening suture unit 100 as described above and a plurality of common suture units (such as a common suture and suture combination in the prior art), that is, the meniscal suture assembly provided in this embodiment includes at least one self-tightening suture unit 100, i.e. the elastic portion 121 thereof continuously applies tension to the suture 110. Of course, it is preferable that the meniscal staple assembly provided in this embodiment does not include a common stapling unit, but is the self-tightening stapling unit 100 as described above, which can achieve a better force application effect, and the invention is not limited thereto.
In one exemplary embodiment of self-tightening suture unit 100 shown in fig. 1 and 2, suture 110 is integrally formed as a single piece. The suture 110 may be selected from a single complete wire, which may be woven from a polymeric material, for example. The suture 110 is in turn connected to the two connecting ends 122 of the elastic staples 120, thereby passing through the target site 900 to the second side 902, respectively. The connection between the suture 110 and the connection end 122 may be a movable connection, such as a movable penetrating or winding connection, or a fixed connection, and may be specifically configured according to the structure of the elastic suture 120. Furthermore, in other embodiments, the suture 110 is not limited to being integral, but may be divided into two sections, and the two sections of suture 110 may be connected (e.g., fixedly connected) to the two connecting ends 122 and then passed through the target site 900 to the second side 902, respectively, which may achieve a similar effect. As can be appreciated from the above description, for a self-tightening suture unit 100, since there are two connection ends 122 and the suture 110 passes through the target portion 900 after being connected to the two connection ends 122, the suture 110 passing through the target portion 900 includes at least two and integer multiple of 2, and for convenience of description, the two sutures 110 connected to the two connection ends 122 and passing through the target portion 900 are referred to as one strand. That is, one self-tightening suture unit 100 includes at least one strand of suture 110 (i.e., two sutures 110), and the two sutures 110 of the one strand form two connecting ends after being threaded to the second side 902 to be connected or knotted with other self-tightening suture units 100. For ease of description, the two connected ends of a strand of suture 110 of self-cinching suture unit 100 at second side 902 are referred to as a cephalad end and a caudal end, respectively. Further, some self-cinching suture units 100 may include more than two sutures 110.
Preferably, the meniscus suture nail assembly includes at least two self-tightening suture units 100, the sutures 110 of all the self-tightening suture units 100 are arranged in a predetermined sequence, wherein the tail ends of the sutures 110 located at the previous position in the predetermined sequence are connected with the head ends of the sutures 110 located at the next adjacent position in the predetermined sequence, so as to form a suture connector 130.
The predetermined sequence refers to a plurality of sequence positions corresponding to the self-tightening suture units 100 arranged in a certain arrangement order, and it is to be understood that each sequence position corresponds to one self-tightening suture unit 100, but the same self-tightening suture unit 100 is not limited to only correspond to one sequence position, that is, the same self-tightening suture unit 100 can be repeated in the predetermined sequence and corresponds to different sequence positions.
With continued reference to fig. 1 and 2, a meniscal staple assembly comprising two self-tightening suture units 100 is described. It will be appreciated that a meniscal staple assembly comprising two self-tightening staple units 100 may have the simplest predetermined sequence, i.e., the predetermined sequence comprises only two sequential positions, a first position and a last position, and the first position and last position correspond one-to-one with two self-tightening staple units 100, respectively, the first position corresponding to the first of said self-tightening staple units 100 located at the head of said meniscal staple assembly and the last position corresponding to the last of said self-tightening staple units 100 located at the tail of said meniscal staple assembly. In the example shown in fig. 2, the first self-tightening suture unit 100 is located on the right side, and the last self-tightening suture unit 100 is located on the left side. Then, the next adjacent sequence position of the first position in the predetermined sequence is the last position, whereas the last adjacent sequence position of the last position in the predetermined sequence is the first position. In the example shown in fig. 1 and 2, the tail end of the suture 110 at the first position in the predetermined sequence is connected to the head end of the suture 110 at the last position, so as to form a suture connector 130, that is, the tail end of the suture 110 of the first self-tightening suture unit 100 is connected to the head end of the suture 110 of the last self-tightening suture unit 100. Preferably, the trailing end of the suture 110 in the first position is connected to the leading end of the suture 110 in the last position and is used to collectively form a U-shape or V-shape at the target location 900.
It will be appreciated that, after such an arrangement, the leading end of the suture 110 at the first position and the trailing end of the suture 110 at the last position in the predetermined sequence are not connected to the subject at the second side 902. In some embodiments, the leading end of the last positioned suture 110 and the trailing end of the last positioned suture 110 may be tied directly at the second side 902. Preferably, in other embodiments, the trailing end of the last positioned suture 110 is threaded to the first side 901 and attached, e.g., fixedly attached, to the elastic staple 120 of the first self-cinching suture unit 100 corresponding to the first position. Thus, the suture connector 130 has only one free end (i.e., the head end of the suture 110 in the first position), and in practice, only the free end needs to be pulled and fixed, for example, the head end of the suture 110 in the first position is fixed by winding and knotting. The manner of wrapping the knot may be, for example, wrapped around the portion of the tail end of the suture 110 of the first self-tightening suture unit 100 that passes out of the second side 902.
Alternatively, the suture connectors 130 formed by sequentially connecting the sutures 110 of all the self-tightening suture units 100 are integrally formed, that is, the suture connectors 130 are actually integrated into a complete wire. In other embodiments, the suture connectors 130 formed by sequentially connecting the sutures 110 of different self-tightening suture units 100 are not limited to integral wires, and may be formed by knotting the second side 902.
In some application scenarios, such as when the tear 910 of the meniscus is large, the meniscus staple assembly may include more than three self-tightening stapling units 100. The predetermined sequence includes a first position, an intermediate position, and a last position; the first position corresponds to a first one of the self-tightening suture units 100 located at a head of the meniscal suture assembly, the last position corresponds to a last one of the self-tightening suture units 100 located at a tail of the meniscal suture assembly, and the intermediate position corresponds to the self-tightening suture unit 100 between the first one of the self-tightening suture units and the last one of the self-tightening suture units; the trailing end of the suture 110 at the first location is connected to the leading end of the suture 110 at the adjacent intermediate location and is configured to collectively form a U-shape or V-shape at the target location; the tail end of the suture 110 at the intermediate position is connected with the head end of the suture 110 at the next adjacent sequence position in the predetermined sequence and is used for forming a U-shape or a V-shape together at the target position; the head end of the suture 110 at the intermediate position is connected with the tail end of the suture 110 at the position of the next sequence in the predetermined sequence and is used for forming a U shape or a V shape together at the target position; the leading end of the suture 110 at the final position is connected to the trailing end of the suture 110 at the adjacent intermediate position and is used to form a U-shape or V-shape together at the target position.
Taking a meniscus suture assembly containing 3 self-tightening suture units 100 as an example, the simplest predetermined sequence corresponding to 3 self-tightening suture units 100 contains 3 sequential positions, namely a first position, a middle position and a last position. The 3 sequential positions correspond one-to-one with the 3 self-tightening suture units 100, the first position corresponding to the first of the self-tightening suture units 100 located at the head of the meniscal suture assembly, the last position corresponding to the last of the self-tightening suture units 100 located at the tail of the meniscal suture assembly, and the intermediate position corresponding to the self-tightening suture unit 100 located in the middle of the meniscal suture assembly.
Optionally, at least one of the self-tightening suture units 100 includes more than two of the sutures 110, and the positions of the self-tightening suture units 100 corresponding to the sutures 110 including more than two of the sutures 110 are repeated in the predetermined sequence. To further enhance the strength of the connection of one or more self-tightening suture units 100 and to enhance the closing effect of the slit 910 at the location of the self-tightening suture unit 100, the one or more self-tightening suture units 100 may include more than two sutures 110. It will be appreciated that the positions of the self-cinching suture unit 100 corresponding to the suture 110 including two or more strands repeat in the predetermined sequence. Since more than two stitches 110 of the same self-tightening suture unit 100 are arranged in a predetermined sequence, the positions corresponding to the self-tightening suture unit 100 must be repeated in the predetermined sequence.
Referring to fig. 3, a predetermined sequence of meniscus suture assemblies comprising 3 self-tightening suture units 100, with 4 sequence positions, is illustrated, wherein the middle self-tightening suture unit 100 comprises two sutures 110. The predetermined sequence includes 4 sequence positions, namely a first position, a second position, a third position and a final position. Wherein the second position and the third position are both intermediate positions. The first position corresponds to the self-tightening suture unit 100 located on the right side, the third position corresponds to the self-tightening suture unit 100 located on the left side, and the second and last positions each correspond to the same self-tightening suture unit 100 located in the middle. That is, the positions of the self-tightening suture units 100 located in the middle are repeated in a predetermined sequence. More specifically, the tail end of the suture 110 of the self-tightening suture unit 100 positioned at the right side is connected with the head end of one of the sutures 110 of the self-tightening suture unit 100 positioned at the middle, the tail end of the strand of suture 110 is connected with the head end of the suture 110 of the self-tightening suture unit 100 positioned at the left side, and the tail end of the suture 110 of the self-tightening suture unit 100 positioned at the left side is connected with the head end of the other strand of suture 110 of the self-tightening suture unit 100 positioned at the middle, thereby forming the suture connector 130. Optionally, the trailing end of the suture connector 130 (i.e., the trailing end of the last positioned suture 110) is further threaded through the target object 900 from the second side 902 to the first side 901 again and is connected with the elastic staples 120 of the self-cinching suture unit 100 on the right side.
It should be noted that the exemplary embodiment shown in fig. 3 is only an exemplary but not limiting example of the self-tightening suture unit 100 including two or more sutures 110, for example, in other embodiments, the positions of the self-tightening suture unit 100 including two or more sutures 110 may be continuously repeated in a predetermined sequence, for example, two consecutive sequential positions in the predetermined sequence may correspond to the same self-tightening suture unit 100 including two or more sutures 110, i.e., the two or more sutures 110 of the self-tightening suture unit 100 are directly connected end to end at the positions corresponding to the self-tightening suture unit 100. The number of strands of suture 110 included in the same self-tightening suture unit 100 is not limited to one strand or two strands, and may be more strands. In addition, the example shown in FIG. 3 is also merely an illustration of a predetermined sequence and is not intended to be limiting, as the self-tightening suture unit 100 comprising more than two sutures 110 need not be positioned in the middle of the meniscal staple assembly, but may be positioned in the head or tail of the meniscal staple assembly.
Preferably, the number of strands of the suture 110 of at least one self-tightening suture unit 100 located between the first self-tightening suture unit 100 and the last self-tightening suture unit 100 is twice the number of strands of the suture 110 of the first self-tightening suture unit 100 or/and the last self-tightening suture unit 100. This configuration is advantageous in enhancing the connection strength of the self-fastening suture unit 100 located in the middle and enhancing the closing effect of the slit 910 where the self-fastening suture unit 100 is located.
Further, the elastic portion 121 stores elastic potential energy based on a morphological change of itself caused by pulling the suture thread 110 toward the second side 902; the morphological changes generated when the elastic portion 121 stores elastic potential energy include axial bending and/or axial compression.
Alternatively, the elastic portion 121 includes at least one of an axially bendable spring (shown in fig. 1 to 3), an axially bendable rod (shown in fig. 4 and 5), an axially bendable piece, an axially compressible spring (shown in fig. 6), and a double spring (shown in fig. 7). Preferably, the material of the elastic portion 121 may be nickel-titanium alloy, stainless steel or other similar elastic materials.
As shown in fig. 1 to 3, the axially bendable spring stores and releases elastic potential energy by bending and straightening in its own axial direction. Two connection ends 122 are provided at both axial ends of the axially bendable spring. Optionally, the connecting end 122 and the elastic portion 121 form a hollow spiral shape for the suture 110 to be threaded. I.e., the suture 110 passes through the first connection end 122, the elastic portion 121, and the second connection end 122 in this order. The axially bendable spring stores elastic potential energy when bent, and the axially bendable spring releases elastic potential energy in the process of converting to a straightened state, so that the two connecting ends 122 are driven to open and move away from each other (namely, the two connecting ends 122 are driven to relatively move when the elastic potential energy is released), and the effect of tightening the suture 110 towards the direction of the first side 901 is achieved.
As shown in fig. 4 and 5, the axially bendable rods and the axially bendable tabs are arranged in a similar manner to the axially bendable springs, and store and release elastic potential energy by bending and straightening themselves axially. The axially bendable rods and axially bendable tabs are smaller in volume, easier to implant, and generate relatively less tissue irritation than axially bendable springs. Optionally, the connecting end 122 is annular for the suture 110 to be threaded.
As shown in fig. 6, the axially compressible spring is similar in structure to the axially bendable spring, but is relatively short, has a small number of turns, and stores and releases elastic potential energy by compression and expansion in the axial direction thereof. Compared with the axially bendable component, the axial length of the axially compressible spring can be set to be shorter, the number of turns of the spring is smaller, the volume is correspondingly smaller, the foreign body sensation after implantation is not obvious, and the damage to human tissues is smaller. In addition, since the axially compressible spring stores and releases elastic potential energy through the compression and expansion of the axially compressible spring, the axially compressible spring is not easy to bend and deform along the radial direction, and stress generated by the axial compression and expansion deformation also can be more easy to directly tighten the suture 110, so that the effect is better.
As shown in fig. 7, the elastic portion 121 is not limited to include a single independent member, but may include two or more separate members, such as a double spring, which can provide greater stress, facilitate tightening the suture 110, and provide a better effect than a single spring.
It should be noted that the examples shown in fig. 1 to 7 are only a few examples of the elastic portion 121 and are not limiting of the elastic portion 121. In some embodiments, the elastic portion 121 may also have both axial compression and bending. For example, with continued reference to fig. 2, an axially bendable spring similar to that shown in fig. 2 may be fixedly connected at two connecting ends 122, wherein the axially bendable spring is bent while being compressed to store elastic potential energy, and wherein the surrounding shape of the axially bendable spring is reduced. The circumferential form of the axially bendable spring expands when the elastic potential energy is released, driving the suture 110 passing therethrough, thereby achieving the effect of cinching the suture 110. That is, when the elastic potential energy is released, the two connecting ends 122 are not driven to move relatively, but the elastic part 121 deforms itself to achieve the effect of tightening the suture 110. In other embodiments, the two connection ends 122 are respectively and fixedly connected to the suture 110, the suture 110 may be loosely inserted into the axially bendable spring, or the suture 110 may comprise two separate sections, which are respectively connected to the two connection ends 122. It will be appreciated that whether the elastic portion 121 is deformed or not will not directly affect the suture 110, and the elastic potential energy is released to achieve the effect of pulling the suture 110 by driving the two connecting ends 122 to move relatively. Of course, in other embodiments, when the elastic potential energy is released, the two connecting ends 122 can be driven to move relatively and the elastic portion is deformed to tighten the suture 110.
For ease of operation, the elastic potential energy of the elastic portion 121 may be configured to be deformed based on the suture 110 being pulled in, thereby achieving storage of the elastic potential energy. In other embodiments, the elastic portion 121 may be pre-stored with elastic potential energy, or store elastic potential energy based on external force, such as the operator directly presses the elastic portion 121 to store elastic potential energy, which is not limited in the present invention.
Referring to fig. 4-8, an implant device 200 for delivering and implanting a meniscal staple assembly is also provided in accordance with an embodiment of the present invention. The implant device 200 includes: a handle assembly 210 and a push assembly 220, the push assembly 220 being movably disposed along an axial direction of the handle assembly 210. Further, the handle assembly 210 includes a delivery tube 211 that is hollow therethrough in an axial direction and a handle 212 that is connected to the delivery tube 211. The push assembly 220 includes an inner core 221 movably disposed through the delivery tube 211 and a push button 222 coupled to the inner core 221. The handle 212 is provided with a push button hole 213 for the push button 222 to pass through. The push button 222 is movably disposed through the push button hole 213. The distal end of the inner core 221 is retracted a distance relative to the distal opening of the delivery tube 211 to form an accommodation space 230 in which the meniscal staple assembly is loaded into the accommodation space 230. Preferably, the delivery tube 211 also has an axially open suture slot 214 to facilitate threading of the suture 110.
In use, the distal end of the delivery tube 211 is inserted into the target site and the push button 222 is pushed distally to push the meniscal staple assembly out of the inner core 221 as desired. For example, where the meniscal staple assembly includes two self-sealing suture units 100, one self-sealing suture unit 100 may be pushed out at a time, the distal end of the delivery tube 211 may be threaded into another location again, and the second self-sealing suture unit 100 may be pushed out again.
Further, the implant device 200 further includes a depth limiting sleeve 240, wherein the depth limiting sleeve 240 may be sleeved outside the delivery tube 211, for example, to abut against the outer surface of the target site to limit the penetration depth of the delivery tube 211 when the delivery tube 211 is penetrated.
In summary, in the meniscus suture nail assembly and the meniscus suture system provided by the invention, the meniscus suture nail assembly is used for suturing a target part, the target part is provided with a first side and a second side which are opposite, and the meniscus suture nail assembly comprises at least one self-tightening suture unit; the self-tightening suture unit comprises a suture and an elastic suture nail; the elastic staples are arranged on the first side; the elastic stitching nail comprises an elastic part and two connecting ends, wherein the elastic part has elastic potential energy; in one of the self-tightening suture units, the suture is connected with the two connecting ends respectively and used for penetrating to the second side; the elastic part is used for releasing the elastic potential energy so as to drive the two connecting ends to relatively move and/or drive the elastic part to deform, thereby retracting the suture line towards the direction of the first side. With the movement of the human body after implantation, the tearing opening of a target part such as a meniscus can be prone to open, and the suture can be loose, but the invention is based on the arrangement of at least one self-tightening suture unit, and the elastic potential energy is released through the elastic part, so that a certain tension can be provided for the suture, the loose suture is tightened, the opening of the tearing opening of the meniscus is reduced or avoided, and the healing of the meniscus is accelerated.
It should be noted that the above embodiments may be combined with each other. The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the present invention.
Claims (13)
1. A meniscus staple assembly for stapling a target site, the target site having opposite first and second sides, the meniscus staple assembly comprising at least one self-tightening stapling unit; the self-tightening suture unit comprises a suture and an elastic suture nail; the elastic staples are arranged on the first side; the elastic stitching nail comprises an elastic part and two connecting ends, wherein the elastic part has elastic potential energy;
in one of the self-tightening suture units, the suture is connected with the two connecting ends respectively and used for penetrating to the second side; the elastic part is used for releasing the elastic potential energy so as to drive the two connecting ends to relatively move and/or drive the elastic part to deform, thereby retracting the suture line towards the direction of the first side.
2. The meniscus suture nail assembly of claim 1, comprising at least two self-tightening suture units, wherein the sutures of all self-tightening suture units are arranged in a predetermined sequence, wherein the tail ends of the sutures in the previous sequence position in the predetermined sequence are connected with the head ends of the sutures in the next adjacent sequence position in the predetermined sequence to form a suture connector.
3. The meniscus staple assembly of claim 2, wherein the predetermined sequence comprises a first position and a last position, the trailing end of the suture of the last position being threaded to the first side and connected with the elastic staple of a first one of the self-tightening suture units corresponding to the first position.
4. The meniscus staple assembly of claim 2, wherein the predetermined sequence comprises a first position where the head end of the suture is secured by a wrap tie.
5. The meniscus suture assembly of claim 2, wherein at least one of the self-tightening suture units comprises more than two of the sutures, the positions of the self-tightening suture units corresponding to the more than two sutures being repeated in the predetermined sequence.
6. The meniscus staple assembly of claim 2, wherein the meniscus staple assembly comprises more than three of the self-tightening staple units, the predetermined sequence comprising a first position, a middle position, and a last position; the first position corresponds to a first one of the self-tightening suture units located at a head of the meniscal suture assembly, the last position corresponds to a last one of the self-tightening suture units located at a tail of the meniscal suture assembly, and the intermediate position corresponds to the self-tightening suture unit between the first one of the self-tightening suture units and the last one of the self-tightening suture units;
the tail end of the suture at the first position is connected with the head end of the suture at the adjacent intermediate position and is used for forming a U shape or a V shape together at the target position;
the tail end of the suture at the intermediate position is connected with the head end of the suture at the next adjacent sequence position in the predetermined sequence and is used for forming a U shape or a V shape together at the target position; the head end of the suture at the middle position is connected with the tail end of the suture at the position of the next sequence in the preset sequence and is used for forming a U shape or a V shape together at the target position;
the head end of the suture at the final position is connected with the tail end of the suture at the adjacent intermediate position and is used for forming a U shape or a V shape together at the target position.
7. The meniscus suture assembly of claim 6, wherein the number of strands of the suture of at least one self-tightening suture unit between the first and last self-tightening suture units is twice the number of strands of the suture of the first or/and last self-tightening suture unit.
8. The meniscus staple assembly of claim 2, wherein the suture connector is integrally formed.
9. The meniscus staple assembly of claim 1, wherein the elastic portion stores elastic potential energy based on a morphological change of itself caused by the suture pulling in a direction of the second side; the morphological changes generated when the elastic portion stores elastic potential energy include axial bending and/or axial compression.
10. The meniscus staple assembly of claim 9, wherein the resilient portion comprises at least one of an axially bendable spring, an axially bendable rod, an axially bendable tab, an axially compressible spring, and a double spring.
11. The meniscus staple assembly of claim 1, wherein the manner in which the suture is connected to the connecting end comprises being removably wrapped or threaded; in one self-tightening suture unit, the suture is integrally formed into a whole, and sequentially and movably wound or penetrated at the two connecting ends.
12. The meniscus staple assembly of claim 11, wherein the connecting end is looped for threading the suture; or the connecting end and the elastic part form a hollow spiral shape for the suture to pass through.
13. A meniscus suturing system comprising a meniscus suturing device according to any one of claims 1 to 12, and further comprising an implantation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311058765.6A CN117064467A (en) | 2023-08-22 | 2023-08-22 | Meniscus suture nail assembly and meniscus suture system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311058765.6A CN117064467A (en) | 2023-08-22 | 2023-08-22 | Meniscus suture nail assembly and meniscus suture system |
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| Publication Number | Publication Date |
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| CN117064467A true CN117064467A (en) | 2023-11-17 |
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| CN202311058765.6A Pending CN117064467A (en) | 2023-08-22 | 2023-08-22 | Meniscus suture nail assembly and meniscus suture system |
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| Country | Link |
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| CN (1) | CN117064467A (en) |
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2023
- 2023-08-22 CN CN202311058765.6A patent/CN117064467A/en active Pending
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