CN210204982U - Suture line and suturing device - Google Patents
Suture line and suturing device Download PDFInfo
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- CN210204982U CN210204982U CN201920504491.1U CN201920504491U CN210204982U CN 210204982 U CN210204982 U CN 210204982U CN 201920504491 U CN201920504491 U CN 201920504491U CN 210204982 U CN210204982 U CN 210204982U
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Abstract
The utility model provides a suture line and a suturing device; the suture thread includes: an elongated body including a first free end and a second free end; a first cam assembly and a second cam assembly disposed about the elongate body, each of the first cam assembly and the second cam assembly including at least one cam; the cam comprises a small end and a large end, the direction of the small end of the cam of the first cam assembly faces the direction of the first free end of the elongated body, and the direction of the small end of the cam of the second cam assembly faces the direction of the second free end of the elongated body; the sectional area of the small end of the cam is smaller than that of the large end of the cam; the wall thickness of the cam is gradually reduced along the direction from the small end to the large end; the suture line can be stably fixed on the suture line by the cam, and the phenomenon that the cam and the silk thread slide relatively in the process that the suture line penetrates into tissues and the cam starts to be meshed with the tissues is prevented, so that the problems of cam deviation and uneven stress are avoided.
Description
Technical Field
The utility model belongs to the field of medical equipment, a stylolite and suturing device are related to.
Background
Due to the age, environment and other factors, the volume of the soft tissues and bones of the face of a human body is shrunk, ligaments begin to relax, the superficial muscle fascia system gradually sags, and the facial surface tissues show the symptoms of sagging, hypoelasticity, wrinkle increase, deep furrow formation and the like under the action of gravity and the relaxation of cheekbone fat pads. And with the increase of age, factors such as the change of hormone level in the body, the loss of collagen and the atrophy of facial glands cause the face to show undesirable characteristic change, namely aging.
With the progress and development of society, the demand of people on beauty is gradually increased, particularly the demand on facial rejuvenation is increased year by year, and the facial rejuvenation is improved and maintained at present by introducing a specially-made silk thread made of absorbable biological materials into shallow soft tissues through a minimally invasive surgery and lifting and resetting relaxed facial soft tissues through excellent lifting and mechanical average distribution effects of the silk thread.
Can be used for lifting different parts of the face in a targeted way and directly acting on the lax skin. In addition, the silk thread is made of biodegradable and absorbable material with good biocompatibility, and after a period of time, the silk thread can stimulate the regeneration of collagen of subcutaneous tissues to form new supporting ligaments and elastic fibers while being degraded and absorbed by facial tissues, so that the facial skin becomes thick and the skin is prevented from aging.
A medical suture of barbed structure is proposed in US5425747 and US 5584859. The suture line of this kind of "barb" structure is by the wide application in medical cosmetic surgery operation, and this kind of suture line is when the puncture is buried subcutaneous tissue, and barb opening direction is opposite with the puncture direction, and the barb receives the oppression of tissue to be in half closed state, and after the puncture, when the suture line thread has the tendency that drops, the barb has the meshing effect to the tissue, and a plurality of barbs synergism, produces huge resistance and prevents that the suture line from droing.
An improved instrument aimed at tissue suturing is proposed in US7582105, which is particularly advantageous during orthopaedic surgery. A suture is provided with a directional cam-type device that can be made to have a one-way or two-way configuration to engage tissue, with nodes being tied back and forth on a wire passing through the cam-type device, a plurality of cam-type devices and nodes being arranged in series on the wire, with one cam in series, and a plurality of nodes being tied back and forth on the first and last cams to define a cam.
Although the medical suture containing the barb structure has a lifting function on loose skin to a certain extent, the engaging function of the cam containing the suture of the cam type device on tissues is obviously superior to that of the barb structure, and the stimulation and the acting time of the cam on the skin are also superior to those of the barb structure. However, since the suture passes only through the perforations in the cam and only the anterior and posterior nodes limit the forward and rearward slippage of the cam, the cam inevitably slips the wire in the tissue as the suture is penetrated into the tissue and the cam begins to engage the tissue, and the centerline of the cam in the tissue may shift relative to the suture, causing one side of the cam to engage the suture and be pulled by the suture. Meanwhile, the common cam structure is not easy to puncture into tissues in the suturing process, so that the meshing effect is not good, and a cam with a good meshing effect is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a suture line and a suturing device, wherein the suture line can stably fix a cam on the suture line, and prevent the relative slippage of the cam and a silk thread during the process that the suture line is punctured into tissues and the cam starts to engage the tissues, thereby avoiding the problems of cam deviation and uneven stress; when the suturing device is used for suturing soft tissues, the suture line can be prevented from being lifted and uneven stress of the cam due to the fact that the cam is deviated when the final puncture position is lifted, and a better lifting and beautifying effect is achieved.
In order to achieve the purpose of the utility model, the utility model adopts the following technical proposal:
an object of the utility model is to provide a suture line, the suture line includes: an elongated body including a first free end and a second free end; a first cam assembly and a second cam assembly disposed about the elongate body, each of the first cam assembly and the second cam assembly including at least one cam; the cam comprises a small end and a large end, the direction of the small end of the cam of the first cam assembly faces the direction of the first free end of the elongated body, and the direction of the small end of the cam of the second cam assembly faces the direction of the second free end of the elongated body; the sectional area of the small end of the cam is smaller than that of the large end of the cam; the wall thickness of the cam is gradually reduced along the direction from the small end to the large end.
The utility model provides a stylolite includes long and thin main part, first cam group spare and second cam group spare, can carry out two-way when sewing up and sew up, and the stylolite can play at final puncture position and carry the effect of drawing to play better cosmetic effect.
The sectional area of the middle and small ends of the utility model is smaller than that of the big end of the cam, and the big end can achieve better meshing effect on the tissue after the cam component enters the tissue; the utility model discloses a there is a space between cam main aspects and the tip, and the wall thickness is the thickness that encloses the cam wall in this space, and the wall thickness of cam reduces along tip to main aspects direction, and wherein the easy inseparable meshing tissue of the less main aspects of wall thickness can avoid the cam to drop to the influence is to the effect of drawing of carrying of tissue.
In the present invention, the wall thickness of the cam is 0.1-0.9mm at its thickest, for example 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm etc., preferably 0.3 mm.
In the present invention, the wall thickness of the cam is at its thinnest 0.05-0.2mm, e.g. 0.05mm, 0.08mm, 0.1mm, 0.12mm, 0.15mm, 0.18mm, 0.2mm etc., preferably 0.09 mm.
In the present invention, the cam is shaped like a horn having a hollow portion.
The utility model discloses tubaeform should understand the outward appearance and accord with the standard of generalized horn shape, follow tip to main aspects sectional area promptly through sharp or the structure that the curve increases gradually, and wherein the curve includes concave curve and convex curve.
The cam also comprises a straight section, the sectional areas of two ends of the straight section are the same and can be cylindrical, and the sectional area of the straight section is smaller than or equal to that of the trumpet-shaped small end. The straight section is preferably integral with the elongate body to minimize any slight relative slippage of the cam and the wire.
The sectional area of the small end or the sectional area of the straight section is smaller, the sectional area of the large end is larger, when the long and thin main body drives the cam assembly to puncture tissues, the single cam enters the tissues in the sequence of the small end and the large end, so that the single cam can conveniently enter the tissues, the damage to the tissues is reduced as far as possible, and in addition, the good meshing effect can be generated on the tissues.
The utility model discloses in, hollow portion's shape is interior tubaeform, interior tubaeform is m along the length of long and thin main part direction, the length of cam along long and thin main part direction is s, 1/4s is less than or equal to m and is less than or equal to s.
The utility model discloses in, the straight section also contains a cavity inner cylinder (also called interior straight section), and the length of interior straight section along long and thin main part direction is l, the length of cam along long and thin main part direction is s, 1/3s is less than or equal to l and is less than or equal to 2/3 s.
In the present invention, the length of s is 1.5-3mm, e.g. 1.5mm, 1.8mm, 2mm, 2.2mm, 2.5mm, 2.8mm, 3mm etc., preferably 2.5mm, i.e. the length of l is 0.8-1.6mm, e.g. 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm etc.
In the utility model, the hollow part is in the shape of a horn (the utility model is called as an inner horn), the hollow part also comprises a flat straight section (the utility model is called as an inner flat straight section), the inner flat straight section is in the shape of a cylinder, in order to ensure that the slender main body directly bears the force on the inner flat straight section after the puncture is completed, the linear stress of the slender main body on the circumferential structures of a large section and a small section is avoided, the length of the inner flat straight section is l, the length of the cam along the direction of the slender main body is s, and l is not less than 1/3s and not more than 2/3 s; when the length l of the inner flat section is less than 1/3s, the relieving effect of the inner flat section on the linear stress is not obvious; when the length l of the inner flat section is more than 2/3s, the proportion of the inner flat section in the length of the cam is too high, and the meshing effect of the cam on tissues is influenced.
In the utility model, the horn angle of the horn shape in the hollow part is α, wherein 20 degrees is more than or equal to α degrees is more than or equal to 120 degrees.
The utility model discloses a control the horn angle of hollow part tubaeform opening section, thereby the distance of straight section in the adjustment hollow part, thereby better control meshing effect, when horn angle α < 20, the opening of opening section is less, main aspects and tip diameter differ less, after the implantation tissue, the unable closely meshing tissue of main aspects, the cam landing phenomenon easily appears, lead to carrying and drawing the operation failure, when α > 120, the opening of opening section is great, then the main aspects diameter is too big, in the implantation tissue in-process, it is great to bear the resistance, the easy-to-draw hinders the tissue.
In the present invention, the first cam assembly and the second cam assembly are symmetrically disposed on opposite sides of a midpoint of the elongated body.
In the present invention, the number of cams of the first cam module and the second cam module is the same.
In the present invention, the distance between the adjacent cams in the first cam module and the second cam module is the same.
In the present invention, the number of cams of the first cam module is 4.
In the present invention, the distance between adjacent cams in the first cam assembly is 3-10mm, such as 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.
In the present invention, the number of cams of the second cam module is 4.
In the present invention, the distance between adjacent cams in the second cam assembly is 3-10mm, such as 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.
In the present invention, the cam is fixed to the elongated body by heat sealing and/or is limited by a stopper.
The utility model discloses in, cam pack and long and thin main part carry out the fibre through the locating part together fixed through the heat-seal, can guarantee the stability of long and thin main part and cam pack on the one hand, avoid appearing relative sliding, and on the other hand lies in and gets into after organizing, in case after the rigidity of cam, long and thin main part also can fix a position fixed position, plays better lifting and pulling effect.
In the present invention, the elongated body may be prepared from existing materials according to existing manufacturing methods, exemplary materials being listed below:
the elongated body and the cam assembly are both degradable materials.
The degradable material comprises a synthetic degradable high polymer material and/or a natural degradable high polymer material.
The synthetic degradable high polymer material comprises any one or the combination of at least two of polylactic acid, L-polylactic acid, DL-polylactic acid, poly (lactide-co-glycolide), polycaprolactone, poly (amyl hydroxybutyrate), poly (acetylglutamate), poly (n-ester), polyethylene oxide/polybutylene copolymer or poly (lactide-co-caprolactone).
The natural degradable high molecular material comprises any one or the combination of at least two of collagen, gelatin, chitosan, hyaluronic acid, sodium alginate and agarose.
A second object of the present invention is to provide a suturing device, which comprises a suture line and a metal needle body at both ends of the suture line.
The utility model discloses well suturing device can carry out two-way sewing up when organizing to sew up, can play the effect of drawing after sewing up to reach better cosmetic or treatment.
The utility model discloses well suturing device is applicable to the wound closure, and the tissue is taut, and the tissue supports, hangs and the fixed process.
Compared with the prior art, the utility model discloses following beneficial effect has:
the cam can be stably fixed on the suture line by the suture line, so that the relative sliding phenomenon of the cam and the silk thread in the process that the suture line enters tissues after being punctured and the cam starts to be meshed with the tissues is prevented, the problems of cam deviation and uneven stress are avoided, and in addition, the structure of the cam can be prepared by thermal expansion, so the preparation cost is lower, and the industrial large-scale production and application are facilitated; when the suturing device is used for suturing soft tissues, the suture line can be prevented from being lifted and stressed unevenly due to cam deviation when the suture line is lifted at the final puncture position.
Drawings
FIG. 1 is a schematic view of a suture in an embodiment;
FIG. 2 is a front view of a cam assembly of an embodiment;
FIG. 3 is a front view of the cam in embodiment 1;
FIG. 4 is a cross-sectional view taken along plane AA' of FIG. 3;
FIG. 5 is an enlarged fragmentary view of a portion of FIG. 4;
FIG. 6 is a front view of a cam according to embodiment 2;
FIG. 7 is a cross-sectional view taken along plane BB' of FIG. 6;
FIG. 8 is a sectional view of a cam in embodiment 3;
FIG. 9 is a sectional view of a cam in embodiment 4;
where 1 is an elongated body, 2 is a first free end, 3 is a second free end, 4 is a first cam assembly, 5 is a second cam assembly, 6 is a cam, 7 is a small end, 8 is a large end, 9 is a hollow inner cylinder, and 10 is a cam wall.
Detailed Description
The technical solution of the present invention will be further explained by the following embodiments. It should be understood by those skilled in the art that the described embodiments are merely provided to assist in understanding the present invention and should not be construed as specifically limiting the present invention.
The present embodiment provides a suture thread, as shown in fig. 1 and 2, including: an elongated body 1, wherein the elongated body 1 comprises a first free end 2 and a second free end 3; a first cam assembly 4 and a second cam assembly 5 disposed about the elongate body 1, wherein each of the first cam assembly 4 and the second cam assembly 5 comprises at least one cam 6; as can be seen in conjunction with fig. 3 and 4, the cam 6 comprises a small end 7 and a large end 8, the small end 7 of the cam of the first cam assembly 4 being oriented in the direction of the first free end 2 of the elongated body 1, and the small end 7 of the cam of the second cam assembly 5 being oriented in the direction of the second free end 3 of the elongated body 1; the sectional area of the small end 7 of the cam 6 is smaller than that of the large end 8 of the cam 6; the wall thickness of the cam 6 decreases in the direction from the small end 7 to the large end 8.
The elongated main body in the embodiment is preferably a single-strand silk thread, the single-strand silk thread has a smaller diameter and better toughness, so that human tissue suturing is facilitated, wherein the diameter, toughness, layer number and other specific conditions of the single-strand silk thread can be adjusted by a person skilled in the art according to actual needs; the elongated main body, the first cam component and the second cam component are all biodegradable materials, and the selectable biodegradable materials comprise any one or a combination of at least two of polylactic acid, L-polylactic acid, DL-polylactic acid, poly (lactide-co-glycolide), polycaprolactone, poly (amyl hydroxybutyrate), poly (acetylglutamate), poly (n-ester), polyethylene oxide/polybutylene copolymer, poly (lactide-co-caprolactone) copolymer collagen, gelatin, chitosan, hyaluronic acid, sodium alginate or agarose, and specifically which material can be adjusted by a person skilled in the art according to actual needs; in the embodiment, the suture is left in the human body after the suture is finished, and the biodegradable material can be degraded in the human body without side effect on the human body.
The number of cams in the first cam assembly and the second cam assembly in the present embodiment is at least 1, preferably 4, wherein the number of cams is adjusted by those skilled in the art according to actual needs; the distance between adjacent cams in the first cam component and the second cam component is 3-10mm, the specific arrangement can be adjusted by a person skilled in the art according to actual needs, and the first cam component and the second cam component are symmetrically distributed on two sides of the middle point of the elongated main body, so that the suture can enter tissues and can be well meshed with the cams during suturing.
In the present embodiment, the cam comprises a small end 7 and a large end 8, wherein the small end with a small cross-sectional area is called the small end 7, and the large end with a large cross-sectional area is called the large end 8, wherein the small end of the cam of the first cam assembly 4 faces the first free end 2 of the elongated body, and the small end of the cam of the second cam assembly 5 faces the second free end 3 of the elongated body, so that the small end of the cam assembly faces the free end of the elongated body during the bidirectional puncturing process, the puncturing process is convenient, and the tissue is not damaged greatly; the sectional area of the small end of the cam is smaller than that of the large end, wherein the sectional areas of the small end and the large end can be adjusted by a person skilled in the art according to actual needs; the utility model discloses a there is a space between cam main aspects and the tip, and the wall thickness is the thickness of the cam wall 10 who encloses this space, and wherein the wall thickness of cam tip to main aspects direction reduces gradually, and the wall thickness thickest of cam is 0.1-0.9mm, and the wall thickness thinnest of cam is 0.05-0.2mm, and the thickest thickness and the thinnest thickness of cam wall 10 specifically how to set up technical staff in the field and can adjust according to actual need.
The elongated body 1, the first cam assembly 4 and the second cam assembly 5 in the embodiment can be fixed together by heat sealing or manufactured integrally, and are used for preventing the cam assembly and the silk thread from sliding relatively, so that the cam is deviated, and the meshing effect of human tissues and the cam is influenced; in this embodiment, the first cam assembly and the second cam assembly may be limited by limiting members, which may be knots formed by the elongated body or degradable limiting materials, wherein the number of the limiting members is at least two more than the number of the cams, so as to better fix the cams; the cross section area of the limiting piece in the direction perpendicular to the elongated main body is larger than the aperture of the small end of the cam, so that the limiting piece is prevented from penetrating through the cam to influence the limiting effect; the limiting part is specifically selected from a knot or other degradable limiting materials, and can be adjusted by a person skilled in the art according to actual needs.
Example 1
In the present embodiment, as can be seen from fig. 3, 4 and 5, the elongated body and the cam are of an integral structure, the cam is in a trumpet shape having a hollow portion, that is, the cross-sectional area of the cam gradually increases from a small end 7 to a large end 8, the wall thickness of the cam wall 10 gradually decreases from the small end to the large end, the wall thickness of the small end is 0.1mm, and the wall thickness of the large end is 0.05mm, the wall thickness of the present embodiment refers to the thickness of the cam wall 10 forming the hollow portion, the hollow portion is in an inner trumpet shape, the length of the inner trumpet shape in the direction of the elongated body is m, the length of the cam in the direction of the elongated body is s, wherein m is 1/3s, and the trumpet angle of the inner trumpet shape is α, wherein α.
When the suture line enters the tissue suture, the sectional area of the cam is gradually increased from the small end to the large end, the suture line can conveniently enter the tissue, the damage to the tissue can be reduced, after the puncture is finished, the pulling rope line is lifted, the wall thickness of the large end of the cam is small, the large end of the cam and the tissue have better engaging capacity under the action of force, and the cam is integrated with the elongated main body, so that the cam can be prevented from falling off, the linear stress of the elongated main body on the cam structure can be avoided, and the good cosmetic or therapeutic effect can be achieved.
Example 2
In this embodiment, as can be seen from fig. 6 and 7, the elongated body and the cam are of an integral structure, the cam is in a horn shape having a hollow portion, that is, the sectional area of the cam increases gradually from the small end 7 to the large end 8, the wall thickness decreases gradually from the small end 7 to the large end 8, the wall thickness of the small end 7 is 0.9mm, and the wall thickness of the large end 8 is 0.2mm, the wall thickness of the embodiment refers to the thickness of the cam wall 10 forming the hollow portion, and further includes a straight section, the straight section is in a cylindrical shape, the hollow portion is in an inner horn shape, the inner horn shape is a length m along the elongated body 1 direction, the length of the cam along the elongated body 1 direction is s, wherein m is 2/3s, and the horn angle formed by the inner horn shape is 45 °.
When the suture line enters the tissue suture, the sectional area of the cam is gradually increased from the small end to the large end, the suture line can conveniently enter the tissue, the damage to the tissue can be reduced, after the puncture is finished, the pulling rope line is lifted, the wall thickness of the large end of the cam is small, the large end of the cam and the tissue have better engaging capacity under the action of force, and the cam is integrated with the elongated main body, so that the cam can be prevented from falling off, the linear stress of the elongated main body on the cam structure can be avoided, and the good cosmetic or therapeutic effect can be achieved.
Example 3
In this embodiment, as shown in fig. 8, the cam is a trumpet shape having a hollow portion and a flat section, the flat section is a cylinder, the diameter of the cylinder is 0.7mm, the diameters and sectional areas of the flat section and the trumpet-shaped small end 7 are equal, that is, the diameter of the trumpet-shaped small end 7 is 0.7mm, the diameter of the trumpet-shaped large end 8 is 1.3mm, the sectional area of the trumpet shape gradually increases from the small end 7 to the large end 8 through a concave curve, the wall thickness of the trumpet shape gradually decreases from the small end 7 to the large end 8, the wall thickness of the small end 7 is 0.3mm, the wall thickness of the large end 8 is 0.09mm, the cam wall 10 in this embodiment is a wall for forming the trumpet-shaped hollow portion and the flat section is a wall 10 for forming the hollow portion, the hollow portion includes an inner trumpet shape, the flat section also includes a hollow inner cylinder 9, the diameter of the inner cylinder 9 is 0.4mm, the length of the flat section along the direction of the elongated main body 1, the cam wall has a length of 1.3mm, the elongated straight section along the direction of the elongated main body, the elongated main body has a concave curve, a section length of the elongated concave curve, a section is 2mm, a section of the elongated section is a section, a section is a section, a section.
In the embodiment, when the suture line enters the tissue for suturing, the sectional area of the cam is gradually increased from the small end to the large end, after the puncture is finished, the rope line is pulled, the wall thickness of the large end of the cam is smaller, the cam has better engaging capacity with the tissue, and the sectional area of the trumpet shape from the small end to the large end is gradually increased in a concave curve mode, so that the engaging capacity of the cam and the tissue can be further increased; the hollow part of the cam comprises an inner flat section, the length l of the flat section and the length s of the cam along the direction of the long and thin main body meet the condition that l is not less than 1/3s and not more than 2/3s, the long and thin main body is guaranteed to bear force on the inner flat section directly after puncture is completed, the long and thin main body is prevented from bearing force on the circumferential structures of the large section and the small section, the formed horn angle is 90 degrees, on one hand, the phenomenon that the diameter difference of the large end and the small end is too low and the cam slides off can be avoided, on the other hand, the phenomenon that the diameter difference of the large end and the small end is too high can be avoided, and the situation that tissues are strained.
Example 4
In this embodiment, as shown in fig. 9, the cam is a trumpet shape having a hollow portion and a flat section, the flat section is a cylinder, the diameter of the cylinder is 0.7mm, the cross-sectional area of the flat section is equal to the diameter and the cross-sectional area of the trumpet-shaped small end 7, i.e., the diameter of the trumpet-shaped small end 7 is 0.7mm, the diameter of the trumpet-shaped large end 8 is 1.3mm, the cross-sectional area of the trumpet shape gradually increases from the small end 7 to the large end 8 in the form of a convex curve, the wall thickness of the trumpet shape gradually decreases from the small end 7 to the large end 8, the wall thickness of the small end is 0.5mm, the wall thickness of the large end is 0.1mm, the trumpet-shaped wall 10 of the hollow portion forms the wall of the hollow portion, the flat section is the thickness of the cam wall forming the hollow portion, the hollow portion includes an inner trumpet shape, the flat section also includes a hollow inner cylinder 9, the diameter of the inner cylinder is 0.4mm, the length of the flat section is 1.08mm in the direction of the elongated main body, the length of the flat section is 1.08mm, the elongated main body, the length of the cam is 2mm, the elongated convex curve, the elongated inner section is gradually increases from the small end 3mm to the elongated convex curve in the direction, the elongated convex curve, the elongated main body is a tangent line of the elongated main body is.
In the embodiment, when the suture enters the tissue for suturing, the sectional area of the trumpet shape is gradually increased from the small end to the large end in a convex curve mode, so that the difficulty of entering the tissue can be further reduced, and the damage to the tissue is further reduced; after the puncture is finished, the rope line is pulled up, the large end wall of the cam has smaller thickness, and the cam has better engaging capacity with the tissue; the hollow part of the cam comprises an inner flat section, the length l of the flat section and the length s of the cam along the direction of the long and thin main body meet the conditions that l is not less than 1/3s and not more than 2/3s, the long and thin main body is enabled to bear force on the inner flat section directly after puncture is completed, the long and thin main body is prevented from bearing force on the circumferential structures of the large section and the small section, the horn angle is 60 degrees, on one hand, the phenomenon that the cam slides down due to too low diameter difference of the large end and the small end can be avoided, on the other hand, the phenomenon that the diameter difference of the large end and the small end is too high can be avoided, and the situation that tissues are strained.
The present embodiment also provides a suture device including the suture thread described above and a metal needle body located at both ends of the suture thread.
The utility model discloses in through set up metal system needle body at stylolite both ends, can carry out two-way when sewing up and sew up, sew up after, carry and draw long and thin main part and can reach better carrying and draw the effect to be used for the tissue to sew up.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (18)
1. A suture, comprising:
an elongated body (1) comprising a first free end (2) and a second free end (3);
a first cam assembly (4) and a second cam assembly (5) which are sleeved on the elongated body (1), wherein the first cam assembly (4) and the second cam assembly (5) each comprise at least one cam (6);
the cam (6) comprises a small end (7) and a large end (8), the direction of the small end (7) of the cam of the first cam component (4) is towards the direction of the first free end (2) of the elongated body (1), and the direction of the small end (7) of the cam of the second cam component (5) is towards the direction of the second free end (3) of the elongated body (1); the sectional area of the small end (7) of the cam (6) is smaller than that of the large end (8) of the cam (6); the wall thickness of the cam (6) is gradually reduced along the direction from the small end (7) to the large end (8).
2. Suture according to claim 1, characterized in that the wall thickness of the cam (6) is 0.1-0.9mm at the most.
3. Suture according to claim 1, characterized in that the wall thickness of the cam (6) is 0.3mm at the most.
4. Suture according to claim 1, characterized in that the wall thickness of the cam (6) is 0.05-0.2mm at the thinnest.
5. Suture according to claim 1, characterized in that the wall thickness of the cam (6) is 0.09mm at the thinnest.
6. Suture according to claim 1, characterized in that the shape of the cam (6) is a trumpet with a hollow.
7. Suture as claimed in claim 1, characterized in that said cam (6) further comprises a straight section.
8. Suture according to claim 6, characterized in that said hollow portion has the shape of an internal trumpet with a length m in the direction of the elongated body (1), said cam (6) has a length s in the direction of the elongated body (1), said 1/4s ≦ m ≦ s.
9. Suture according to claim 6, characterized in that said hollow portion further comprises an inner flat section having a length l in the direction of the elongated body (1), said cam (6) having a length s in the direction of the elongated body (1), said 1/3s ≦ l ≦ 2/3 s.
10. The suture of claim 8 wherein the horn angle of the inner horn is α wherein 20 ° ≦ α ≦ 120 °.
11. Suture as claimed in claim 1, characterized in that said first cam member (4) and second cam member (5) are symmetrically distributed on either side of the midpoint of the elongated body (1).
12. Suture as claimed in claim 1, characterized in that said first cam assembly (4) and second cam assembly (5) have the same number of cams.
13. Suture as claimed in claim 1, characterized in that the number of cams of said first cam assembly (4) is 4.
14. Suture as claimed in claim 1, characterized in that the number of cams of the second cam assembly (5) is 4.
15. Suture as claimed in claim 1, characterized in that the distance between adjacent cams (6) in the first cam assembly (4) and the second cam assembly (5) is the same.
16. Suture as claimed in claim 1, characterized in that the distance between adjacent cams (6) in the first cam assembly (4) is 3-10 mm.
17. Suture as claimed in claim 1, characterized in that the distance between adjacent cams (6) in the second cam assembly (5) is 3-10 mm.
18. A suture device comprising the suture thread according to any one of claims 1 to 17 and a metal needle body provided at both ends of the suture thread.
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| CN201920504491.1U CN210204982U (en) | 2019-04-15 | 2019-04-15 | Suture line and suturing device |
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| CN201920504491.1U CN210204982U (en) | 2019-04-15 | 2019-04-15 | Suture line and suturing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109864835A (en) * | 2019-04-15 | 2019-06-11 | 易浦润（上海）生物技术有限公司 | A kind of suture, stitching devices and its application |
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2019
- 2019-04-15 CN CN201920504491.1U patent/CN210204982U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109864835A (en) * | 2019-04-15 | 2019-06-11 | 易浦润（上海）生物技术有限公司 | A kind of suture, stitching devices and its application |
| CN109864835B (en) * | 2019-04-15 | 2024-06-11 | 童妍(上海)医疗器械有限公司 | Suture line, suture device and application of suture line |
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