Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The present invention has been made in view of the above-mentioned problems with the needles of the prior art surgical sutures.
Accordingly, it is an object of the present invention to provide a needle for surgical sutures.
In order to solve the technical problems, the invention provides a suture needle of a surgical suture, which comprises,
A needle body including a needle end portion provided with a threading member, a needle middle portion, and a needle head portion connected to the needle middle portion, and
The bending assembly is arranged on the needle head and the middle of the needle and comprises a winding outer layer wound on the middle of the suture and connecting edge rings arranged at two ends of the winding outer layer.
As a preferable scheme of the suture needle of the surgical suture, the suture needle end part, the suture needle middle part and the suture needle head part are integrally arranged, a first bending dent is arranged between the suture needle end part and the suture needle middle part, and a second bending dent is arranged between the suture needle middle part and the suture needle head part.
As a preferable mode of the suture needle of the surgical suture, the threading part comprises a tip arranged on the end of the suture, a threading hole arranged on the tip and winding dents arranged on the side wall of the threading hole, wherein the winding dents are arranged on the two side walls of the threading hole.
As a preferable scheme of the suture needle of the surgical suture, the wound outer layer is provided with a plurality of changing pieces, each changing piece comprises a plurality of connecting monomers which are mutually connected end to end in sequence, the connecting monomers are hinged with each other, and the outer sides of the connecting monomers are coated on the second bending dents.
As a preferable scheme of the suture needle of the surgical suture, the connecting unit comprises a first connecting rod, a sleeve block connected to the end part of the first connecting rod, two second connecting rods hinged to the sleeve block and a middle strip arranged at the end part of the second connecting rods, wherein the middle strip is made of copper alloy, a matching opening for the first connecting rod to match is formed in the sleeve block, and an installation end part is arranged at one end of the first connecting rod far away from the sleeve block.
As a preferable proposal of the suture needle of the surgical suture, the invention is characterized in that the mounting end part is provided with a connecting ball, the sleeve block is provided with a spherical groove matched with the connecting ball, the upper end opening of the spherical groove is smaller than the diameter of the connecting ball,
The connecting monomers are made of titanium alloy.
As a preferable scheme of the suture needle of the surgical suture, the suture needle middle part is provided with deformation pieces near the back side surfaces of the first bending dent and the second bending dent, and the suture needle middle part, the suture needle end part and the suture needle head part are all provided with pits.
As a preferable proposal of the suture needle of the surgical suture, the deformation piece comprises a base, a plurality of actuators arranged on the base and a non-telescopic film layer arranged between the base and the actuators, wherein the base is provided with a plurality of protruding parts matched with the surface shape of the actuators,
The actuator comprises a deformation frame and a plurality of accommodating cavities arranged in the deformation frame, filling materials are filled in the accommodating cavities, openings are formed in the accommodating cavities, and the non-telescopic film layer is made of silk.
As a preferable proposal of the suture needle of the surgical suture, a plurality of containing cavities positioned on the same actuator are provided with partition parts, the materials of the partition parts are the same as the materials of the actuator, the actuators are symmetrically arranged, three are arranged on the left side, three are arranged on the right side,
The size of the actuator gradually increases from one end close to the central cylinder to one end far away from the central cylinder, one end, far away from the central cylinder, of the actuator is arranged in an outer arc shape, three accommodating cavities in each actuator are arranged, and the volume ratio of the middle accommodating cavity to the remaining two accommodating cavities is 1:1.3.
As a preferable scheme of the suture needle of the surgical suture, the surgical suture is characterized in that the actuator is made of a flexible material, the filling material comprises solid filler and silver nano particles uniformly distributed in the solid filler, a plurality of phase-change liquid drops are distributed in the solid filler, and the phase-change liquid drops are fluorinated liquid.
The invention has the beneficial effects that the laser heat is utilized to drive the flexible actuator to heat the filling material in the accommodating cavity, and the volume of the filling material in the cavity is changed through the heat load, so that the expansion of the appointed deformation frame is caused, and the two sides of the first bending dent are pushed, so that the bending of the sewing needle is realized.
Utilize the characteristic of deformation spare, can heat the point on the needle, and then make deformation spare take place deformation to bend the needle, thereby simple structure, and bend for non-contact form when buckling, guaranteed that the needle can not receive the pollution of external instrument when bending, and the dynamics of bending is controllable.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1-6, in a first embodiment of the present invention, there is provided a suture needle for surgical suture, comprising a needle body 100, the needle body 100 comprising a needle end 101, a needle middle 102 and a needle head 103 connected to the needle middle 102, a threading member 104 being provided on the needle end 101, the needle end 101 being larger in size than the needle head 103, the needle end 101 being provided with a notch for generating friction force when held by a needle holder, the notch on the needle end 101 being diamond-shaped, the diamond-shaped notch being located in the rear third of the needle end 101 and being recessed inwardly as a whole so as not to hinder normal suture needle operation.
Further, the invention further comprises a bending assembly 200, and the bending assembly 200 is arranged to enable the suture needle body 100 to be bent when required, so that the suture needle can be bent into the suture needles with different bending degrees, and the suture is convenient.
In this embodiment, the bending component 200 is disposed on the needle head 103 and the needle middle 102, the bending component 200 includes a winding outer layer 201 wound on the needle middle 102 and connection edge rings disposed at two ends of the winding outer layer 201, the winding outer layer 201 is sleeved on the needle middle 102 and is tightly fused with the needle middle 102, and the connection edge rings are in a ring shape, extend from the winding outer layer 201 and keep fit with the outer wall of the needle middle 102.
Further, the needle end 101, the needle middle 102 and the needle head 103 are integrally arranged, a first bending dent 202 is arranged between the needle end 101 and the needle middle 102, a second bending dent 203 is arranged between the needle middle 102 and the needle head 103, and the first bending dent 202 and the second bending dent 203 are micro-dents and slightly concave inwards.
Further, in the present embodiment, the threading member 104 includes a tip 104a provided on the end of the suture, a threading hole 104b provided on the tip 104a, and winding dimples 104c provided on the side walls of the threading hole 104b, the winding dimples 104c being provided on both side walls of the threading hole 104 b.
When threading is carried out, an operator penetrates the suture into the threading hole 104b, then winds the suture onto the winding dent 104c after penetrating out, and then knots, and after bypassing the winding dent 104c, the thread ends of the suture are closer to the thread body, so that the follow-up knot tying action is facilitated.
Further, a plurality of changing pieces 300 are disposed on the winding outer layer 201, and when the changing pieces 300 are used for subsequently changing the radian of the needle, the needle can be bent more smoothly, and preferably, the needle is bent, namely, the needle is bent towards a more bending direction instead of being bent in a straightening direction.
In this embodiment, the changing member 300 includes a plurality of connection units 301 connected end to end, the connection units 301 are hinged to each other, and the outer sides of the connection units 301 are coated on the second bending dents 203.
The changing element 300 is arranged between the winding outer layer 201 and the needle middle 102, so that the needle middle 102 is provided with an annular concave portion for installing the changing element 300.
Further, in this embodiment, the connection unit 301 includes a plurality of first connection rods 301a disposed in a ring array, a sleeve block 301b connected to an end of the first connection rods 301a, two second connection rods 301c hinged to the sleeve block 301b, and a middle strip 301d disposed at an end of the second connection rods 301c, where the middle strip 301d is disposed at an end far from the second connection rods 301c, and two ends of the middle strip 301d are connected to the second connection rods 301c, and the middle strip 301d is made of a copper alloy material, a fitting hole for the first connection rods 301a to fit is formed in the sleeve block 301b, and a mounting end 302 is disposed at an end of the first connection rod 301a far from the sleeve block 301 b.
Further, a connecting ball 303 is provided at the mounting end 302, a ball-shaped groove 304 is provided on the socket 301b to be fitted with the connecting ball 303, an opening at an upper end of the ball-shaped groove 304 is smaller than a diameter of the connecting ball 303,
Preferably, the connection units 301 are made of titanium alloy.
Further, deforming member 400 is disposed on the backside of needle middle 102 adjacent to first bending indent 202 and second bending indent 203, and recesses are formed on needle middle 102, needle end 101 and needle head 103.
Further, in this embodiment, the deformation member 400 includes a base 401, an actuator 402 and a non-stretchable film layer disposed on a surface of the base 401, the actuator 402 includes a deformation frame 402a and a receiving cavity 402b disposed in the deformation frame 402a, a filling material is filled in the receiving cavity 402b, the shape of the base 401 is set according to the number of the actuators 402, a central column structure is disposed in the middle of the base 401, and the base 401 extending from the outside to a back of each actuator 402 is used for covering the entire deformation member 400 and the surface of each actuator 402, and the non-stretchable film layer is a fixed base 401, so that deformation is concentrated on a side of the deformation frame 402a away from the base 401, further improving sensitivity, a plurality of protruding portions matching the shape of the surface of the actuator 402 are disposed on the base 401, wherein an opening is formed in the receiving cavity 402b, and the non-stretchable film layer is a hard film.
Further, the partition parts 404 are disposed between the accommodating chambers 402b located on the same actuator 402, and the material of the partition parts 404 is the same as that of the actuator 402, in this embodiment, the number of partition parts 404 on each actuator 402 is 2, and further the number of accommodating chambers 402b in each actuator 402 is 3.
Further, the dimension of each actuator 402 increases gradually from one end close to the central cylinder to one end far from the central cylinder, two long sides of the actuator 402 extend linearly outwards from the deformation member 400 after being bent, the extending direction is the length direction of the middle section of the sewing needle, the end, far from the central cylinder, of the actuator 402 is arranged in an outer arc shape, the outer arc shape is connected with the two long sides of the actuator 402, and the actuator 402 is similar to a long-strip waist-shaped groove shape.
Preferably, three receiving cavities 402b are provided in each actuator 402, and the volume ratio of the middle receiving cavity 402b to the remaining two receiving cavities 402b is 1:1.3.
Further, the actuator 402 is made of a flexible material, in this embodiment, the filling material includes a solid filler and silver nanoparticles uniformly distributed in the solid filler, and the good thermal conductivity of the silver nanoparticles makes the low boiling point fluorinated liquid reach the boiling point rapidly, and the liquid boils and converts into gas, so as to realize rapid driving of the flexible actuator 402 to deform greatly.
The solid filler is internally distributed with a plurality of phase-change liquid drops, the phase-change liquid drops adopt fluorinated liquid, in a specific design mode of the phase-change liquid drops, the phase-change liquid drops adopt low-melting organic solvents, the common low-boiling solvents are alcohols, but the alcohols have higher boiling points, the high driving temperature is easy to damage a stitch, the fluorinated liquid can be used as the low-boiling organic solvents, the gripper body can be deformed at the low temperature of 40 ℃, the opening and closing of fingers can be controlled, ultra-high sensitive output force can be realized, the electronic fluorinated liquid is actually selected for the fluorinated liquid, and the hydrofluoroether solvent contains 2% of fluorine-containing acrylic acid polymers by mass fraction.
The operation process is that the laser heat is utilized to drive the flexible actuator 402 to heat the filling material in the accommodating cavity 402b, and the volume of the filling material in the cavity is changed through the heat load, so that the expansion of the designated deformation frame 402a is caused, and the two sides of the first bending dent 202 are pushed, so that the bending of the sewing needle is realized.
Utilize the characteristic of deformation spare 400, can heat the point on the needle, and then make deformation spare 400 take place the deformation to bend the needle, thereby simple structure, and bend for non-contact form when buckling, guaranteed that the needle can not receive the pollution of external instrument when bending, and the dynamics of bending is controllable.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.