Surgical suture needle

Abstract

The invention discloses a surgical suture needle which comprises a suture needle body, the suture needle body comprises a suture needle end part, a suture needle middle part and a suture needle head part connected with the suture needle middle part, and a threading component is arranged on the suture needle end part; the bending assemblies are arranged on the head portion of the sewing needle and the middle portion of the sewing needle and comprise a winding outer layer wound on the middle portion of the sewing needle and connecting side rings arranged at the two ends of the winding outer layer, the flexible actuator is driven by laser heat, the filling material in the containing cavity is heated, the size of the filling material in the cavity is changed through thermal loads, and the bending assemblies are arranged on the head portion of the sewing needle and the middle portion of the sewing needle. By means of the characteristics of the deformation part, point positions on the sewing needle can be heated, then the deformation part deforms, the sewing needle is bent, the structure is simple, bending is conducted in a non-contact mode during bending, and the bending efficiency is improved. It is guaranteed that the sewing needle is not polluted by external tools in the bending process, and the bending force is controllable.

Description

Technical Field

[0001] The invention relates to the technical field of surgical suture needles, in particular to a surgical suture needle. Background Art

[0002] After a surgical operation, in order to treat the wounds of various tissues and organs cut during the operation, a suture set is generally used to suture the surgical wound until the surgical wound is healed.

[0003] The surgical needle assembly of the prior art has a needle and a suture, wherein the needle is curved, and the suture is connected to one end of the needle. In addition, the needle of the prior art is made of high rigidity material to maintain the rigidity of the needle when inserted.

[0004] However, since the suture needle is made of a highly rigid material, it is not easy to bend, and thus the curvature of the suture needle cannot be adjusted according to the needs of the operation, so there is a need for further improvement. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the above problems existing in the suture needles of existing surgical sutures, the present invention is proposed.

[0007] Therefore, an object of the present invention is to provide a surgical suture needle.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a surgical suture needle, comprising:

[0009] The sewing needle body comprises a sewing needle end, a sewing needle middle and a sewing needle head connected to the sewing needle middle, wherein the sewing needle end is provided with a threading component; and

[0010] A bending assembly is arranged on the suture needle head and the middle part of the suture needle, and comprises a winding outer layer wound on the middle part of the suture line and connecting edge rings arranged at both ends of the winding outer layer.

[0011] As a preferred embodiment of the surgical suture needle of the present invention, the end portion of the needle, the middle portion of the needle and the head portion of the needle are integrated, a first bending indentation is provided between the end portion of the needle and the middle portion of the needle, and a second bending indentation is provided between the middle portion of the needle and the head portion of the needle.

[0012] As a preferred embodiment of the surgical suture needle of the present invention, the threading component includes a terminal end arranged on the end of the suture, a threading hole opened on the terminal end, and a winding indentation arranged on the side wall of the threading hole, and the winding indentation is arranged on the two side walls of the threading hole.

[0013] As a preferred embodiment of the surgical suture needle of the present invention, a plurality of changing parts are arranged on the wrapped outer layer, and the changing parts include a plurality of connecting monomers which are connected to each other end to end in sequence, the connecting monomers are hinged to each other, and the outer sides of the connecting monomers are covered on the second bending indentation.

[0014] As a preferred embodiment of the surgical suture needle of the present invention, the connecting unit includes a first connecting rod, a sleeve block connected to the end of the first connecting rod, two second connecting rods hinged on the sleeve block, and an intermediate strip arranged at the end of the second connecting rod, the intermediate strip is made of copper alloy, the sleeve block is provided with a mating opening for mating with the first connecting rod, and the first connecting rod is provided with a mounting end at one end away from the sleeve block.

[0015] As a preferred embodiment of the surgical suture needle of the present invention, the mounting end is provided with a connecting ball, the sleeve block is provided with a spherical groove matching the connecting ball, the upper end opening of the spherical groove is smaller than the diameter of the connecting ball,

[0016] The connecting monomers are all made of titanium alloy.

[0017] As a preferred embodiment of the surgical suture needle of the present invention, a deformable part is arranged on the back side of the middle part of the needle close to the first bending indentation and the second bending indentation, and depressions are arranged on the middle part of the needle, the end part of the needle and the head part of the needle.

[0018] As a preferred embodiment of the surgical suture needle of the present invention, the deformable member includes a base, a plurality of actuators arranged on the base, and a non-retractable membrane layer arranged between the base and the actuator, and the base is provided with a plurality of extensions matching the surface shape of the actuator.

[0019] The actuator comprises a deformation frame and a plurality of accommodating cavities arranged in the deformation frame, the accommodating cavities are filled with filling materials, the accommodating cavities are provided with openings, and the non-stretchable membrane layer is made of silk.

[0020] As a preferred embodiment of the surgical suture needle of the present invention, a partition is provided between the plurality of accommodating cavities on the same actuator, the material of the partition is the same as that of the actuator, and the plurality of actuators are symmetrically arranged, with three on the left and three on the right.

[0021] Among them, the size of the actuator gradually increases from the end close to the central column to the end away from the central column. The end of the actuator away from the central column is set to an outer arc shape. There are three accommodating cavities in each actuator, and the volume ratio of the middle accommodating cavity to the volume of the remaining two accommodating cavities is 1:1.3.

[0022] As a preferred embodiment of the surgical suture needle of the present invention, the actuator is made of a flexible material, the filling material includes a solid filler and silver nanoparticles uniformly distributed in the solid filler, a plurality of phase change droplets are distributed in the solid filler, and the phase change droplets are fluorinated liquid.

[0023] The beneficial effects of the present invention are as follows: the filling material in the accommodating cavity is heated by utilizing laser thermal drive of the flexible actuator, and the volume of the filling material in the cavity is changed by the thermal load, thereby causing the expansion of the specified deformation frame, thereby pushing the two sides of the first bending indentation, thereby realizing the bending of the suture needle.

[0024] By utilizing the characteristics of the deformable part, the points on the suture needle can be heated, thereby causing the deformable part to deform and bend the suture needle. The structure is simple and the bending is performed in a non-contact manner, ensuring that the suture needle will not be contaminated by external tools during bending and the bending force is controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0026] Figure 1 The figure is a schematic diagram of the overall structure of the suture needle of the surgical suture of the present invention.

[0027] Figure 2 The figure is a schematic diagram of the position of the changing parts of the overall structure of the suture needle of the surgical suture of the present invention.

[0028] Figure 3 The present invention is a schematic cross-sectional view of the structure of the first bending indentation of the suture needle of the surgical suture.

[0029] Figure 4 It is a schematic diagram of the changing part of the suture needle of the surgical suture of the present invention.

[0030] Figure 5 It is a schematic diagram of connecting monomers of the suture needle of the surgical suture of the present invention.

[0031] Figure 6 Schematic diagram of the deformable member of the surgical suture needle of the present invention. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0035] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0036] Example 1

[0037] Reference Figure 1-6 , which is the first embodiment of the present invention, provides a surgical suture needle, including a needle body 100, the needle body 100 includes a needle end 101, a needle middle part 102 and a needle head 103 connected to the needle middle part 102, a threading component 104 is provided on the needle end 101, the size of the needle end 101 is larger than the size of the needle head 103, the needle end 101 is engraved with a groove for generating friction when clamped by a needle holder, the engraving on the needle end 101 is a diamond-shaped engraving, which is located in the rear third of the needle end 101 and is recessed inward as a whole, and will not hinder normal needle operation.

[0038] Furthermore, the present invention also includes a bending assembly 200, which is provided so that the suture needle body 100 can be bent when needed, and then bent into suture needles with different curvatures to facilitate suturing.

[0039] In this embodiment, the bending assembly 200 is arranged on the suture needle head 103 and the middle part 102 of the suture needle. The bending assembly 200 includes a winding outer layer 201 wound around the middle part 102 of the suture needle and connecting edge rings arranged at both ends of the winding outer layer 201. The winding outer layer 201 is sleeved on the middle part 102 of the suture needle and is tightly integrated with the middle part 102 of the suture needle, while the connecting edge ring is in a circular shape, extending from the winding outer layer 201 and keeping in contact with the outer wall of the middle part 102 of the suture needle.

[0040] Furthermore, the end portion 101 of the suture needle, the middle portion 102 of the suture needle and the head portion 103 of the suture needle are integrated, a first bending indentation 202 is provided between the end portion 101 of the suture needle and the middle portion 102 of the suture needle, and a second bending indentation 203 is provided between the middle portion 102 of the suture needle and the head portion 103 of the suture needle. Both the first bending indentation 202 and the second bending indentation 203 are micro-indentations, which are slightly concave inward.

[0041] Furthermore, in this embodiment, the threading component 104 includes a terminal 104a arranged on the end of the suture, a threading hole 104b opened on the terminal 104a, and a winding indentation 104c arranged on the side wall of the threading hole 104b, and the winding indentation 104c is arranged on both side walls of the threading hole 104b.

[0042] When threading, the operator passes the suture through the threading hole 104b, then passes it out and wraps it around the winding indentation 104c, and then ties a knot. After bypassing the winding indentation 104c, the thread end of the suture is closer to the thread body, which is convenient for subsequent knotting.

[0043] Furthermore, a plurality of changing parts 300 are provided on the wrapped outer layer 201, and the changing parts 300 are used for subsequently changing the curvature of the suture needle to make the bending of the suture needle smoother. Preferably, the suture needle is generally bent in a more curved direction rather than in a straightening direction.

[0044] In this embodiment, the changing member 300 includes a plurality of connecting monomers 301 which are connected to each other end to end in sequence. The connecting monomers 301 are hinged to each other, and the outer sides of the connecting monomers 301 are covered on the second bending indentation 203 .

[0045] The changing member 300 is disposed between the winding outer layer 201 and the middle portion 102 of the suture needle, so that the middle portion 102 of the suture needle is provided with an annular recessed portion for installing the changing member 300 .

[0046] Furthermore, in the present embodiment, the connecting unit 301 includes a plurality of first connecting rods 301a arranged in a circular array, a sleeve block 301b connected to the end of the first connecting rod 301a, two second connecting rods 301c hinged on the sleeve block 301b, and an intermediate strip 301d arranged at the end of the second connecting rod 301c, the intermediate strip 301d being arranged at an end away from the second connecting rod 301c, and both ends of the intermediate strip 301d being connected to the second connecting rod 301c, and the intermediate strip 301d being made of copper alloy, and a mating opening for mating with the first connecting rod 301a is opened on the sleeve block 301b, and an installation end 302 is provided at the end of the first connecting rod 301a away from the sleeve block 301b.

[0047] Furthermore, a connecting ball 303 is provided at the mounting end 302, and a spherical groove 304 cooperating with the connecting ball 303 is provided on the sleeve block 301b, and the opening at the upper end of the spherical groove 304 is smaller than the diameter of the connecting ball 303.

[0048] Preferably, the connecting monomers 301 are all made of titanium alloy.

[0049] Furthermore, a deformable member 400 is provided on the back side of the middle portion 102 of the suture needle near the first bending indentation 202 and the second bending indentation 203 , and depressions are provided on the middle portion 102 of the suture needle, the end portion 101 of the suture needle, and the head portion 103 of the suture needle.

[0050] Furthermore, in the present embodiment, the deformable member 400 includes a base 401, an actuator 402, and a non-stretchable film layer arranged on the surface of the base 401. The actuator 402 includes a deformable frame 402a and a accommodating cavity 402b arranged in the deformable frame 402a. The accommodating cavity 402b is filled with filling material. The shape of the base 401 is set according to the number of actuators 402, and a central column structure is arranged in the middle, and the base 401 extending from the outside to cover the back of each actuator 402 is extended to cover the entire surface of the deformable member 400 and the actuator 402, and the non-stretchable film layer fixes the base 401, so that the deformation is concentrated on the side of the deformable frame 402a away from the base 401, further improving the sensitivity. A plurality of extensions matching the surface shape of the actuator 402 are arranged on the base 401, wherein an opening is opened on the accommodating cavity 402b, and in the present embodiment, the non-stretchable film layer is a hard film.

[0051] Furthermore, a partition portion 404 is provided between several accommodating cavities 402b on the same actuator 402, and the material of the partition portion 404 is the same as that of the actuator 402. In this embodiment, the number of partition portions 404 on each actuator 402 is 2, and the number of accommodating cavities 402b in each actuator 402 is 3.

[0052] Furthermore, the size of each actuator 402 gradually increases from the end close to the central column to the end away from the central column. When observed from directly above the actuator 402, the two long sides of the actuator 402 are bent at the deformable member 400 and extend straight outward, and the extension direction is the length direction of the middle section of the suture needle. The end of the actuator 402 away from the central column is set to an outer arc shape, and the outer arc shape connects the two long sides of the actuator 402. The actuator 402 is similar to a long waist-shaped groove.

[0053] Preferably, three accommodating chambers 402b are provided in each actuator 402, and the volume ratio of the middle accommodating chamber 402b to the volume ratio of the remaining two accommodating chambers 402b is 1:1.3.

[0054] Furthermore, the actuator 402 is made of a flexible material. In the present embodiment, the filling material includes a solid filler and silver nanoparticles uniformly distributed in the solid filler. The good thermal conductivity of the silver nanoparticles enables the low-boiling-point fluorinated liquid to quickly reach the boiling point, and the liquid boils and transforms into gas, thereby achieving rapid driving of the flexible actuator 402 to a large deformation.

[0055] A number of phase change droplets are distributed in the solid filler, and the phase change droplets are made of fluorinated liquid. In the specific design of the phase change droplets, the phase change droplets use a low melting point organic solvent. The commonly used low boiling point solvent is alcohol, but the boiling point of alcohol is relatively high, and the high driving temperature can easily damage the suture needle. Fluorinated liquid can be selected as the low boiling point organic solvent. At a low temperature of 40 degrees, the gripper body can be deformed, thereby controlling the opening and closing of the fingers, and achieving ultra-high sensitive output force. In the actual selection of fluorinated liquid, electronic fluorinated liquid, the hydrofluoroether solvent contains 2% by mass of fluorinated acrylic polymer.

[0056] Operation process: Use laser heat to drive the flexible actuator 402 to heat the filling material in the accommodating cavity 402b, and change the volume of the filling material in the cavity through the thermal load, thereby causing the expansion of the specified deformation frame 402a, thereby pushing the two sides of the first bending indentation 202, thereby realizing the bending of the suture needle.

[0057] By utilizing the characteristics of the deformable part 400, points on the suture needle can be heated, thereby causing the deformable part 400 to deform and bend the suture needle. This makes the structure simple and the bending is performed in a non-contact manner, ensuring that the suture needle will not be contaminated by external tools during bending and that the bending force is controllable.

[0058] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0059] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0060] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A surgical suture needle, characterized in that: include, A sewing needle body (100) comprises a sewing needle end (101), a sewing needle middle (102) and a sewing needle head (103) connected to the sewing needle middle (102), wherein the sewing needle end (101) is provided with a threading component (104); and A bending assembly (200) is arranged on the suture needle head (103) and the suture needle middle part (102), comprising a winding outer layer (201) wound on the suture middle part and connecting edge rings arranged at both ends of the winding outer layer (201).

2. The surgical suture needle according to claim 1, characterized in that: The end portion (101) of the sewing needle, the middle portion (102) of the sewing needle and the head portion (103) of the sewing needle are integrally arranged, a first bending indentation (202) is provided between the end portion (101) of the sewing needle and the middle portion (102) of the sewing needle, and a second bending indentation (203) is provided between the middle portion (102) of the sewing needle and the head portion (103).

3. The surgical suture needle according to claim 2, characterized in that: The threading component (104) comprises a terminal (104a) arranged on the end of the suture, a threading hole (104b) opened on the terminal (104a), and a winding indentation (104c) arranged on the side wall of the threading hole (104b), wherein the winding indentation (104c) is arranged on two side walls of the threading hole (104b).

4. The surgical suture needle according to claim 3, characterized in that: A plurality of changing parts (300) are arranged on the inner side of the winding outer layer (201), and the changing parts (300) include a plurality of connecting monomers (301) connected to each other end to end, the connecting monomers (301) are hinged to each other, and the outer side of the connecting monomers (301) is covered on the second bending indentation (203).

5. The surgical suture needle according to claim 1, characterized in that: The connecting unit (301) comprises a first connecting rod (301a), a sleeve (301b) connected to the end of the first connecting rod (301a), two second connecting rods (301c) hinged on the sleeve (301b), and a middle strip (301d) arranged at the end of the second connecting rod (301c), wherein the middle strip (301d) is made of copper alloy, the sleeve (301b) is provided with a matching opening for the first connecting rod (301a), and the first connecting rod (301a) is provided with a mounting end (302) at one end away from the sleeve (301b).

6. The surgical suture needle according to claim 5, characterized in that: The mounting end portion (302) is provided with a connecting ball (303), and the sleeve block (301b) is provided with a spherical groove (304) that matches the connecting ball (303), and the upper end opening of the spherical groove (304) is smaller than the diameter of the connecting ball (303). The connecting monomers (301) are made of titanium alloy.

7. The surgical suture needle according to claim 6, characterized in that: A deformable member (400) is provided on the back side of the middle part (102) of the sewing needle close to the first bending indentation (202) and the second bending indentation (203), and depressions are provided on the middle part (102) of the sewing needle, the end part (101) of the sewing needle, and the head part (103) of the sewing needle.

8. The surgical suture needle according to claim 7, characterized in that: The deformable member (400) comprises a base (401), a plurality of actuators (402) arranged on the base (401), and a non-stretchable membrane layer arranged between the base (401) and the actuators (402), wherein the base (401) is provided with a plurality of protruding portions matching the surface shape of the actuators (402). The actuator (402) comprises a deformation frame (402a) and a plurality of accommodating cavities (402b) arranged in the deformation frame (402a); the accommodating cavities (402b) are filled with filling materials; an opening is provided on the accommodating cavities (402b); and the non-stretchable film layer is a hard film.

9. The surgical suture needle according to claim 8, characterized in that: A partition portion (404) is provided between the plurality of accommodating cavities (402b) located on the same actuator (402), and the material of the partition portion (404) is the same as that of the actuator (402). The plurality of actuators (402) are symmetrically arranged, with three arranged on the left side and three arranged on the right side. The size of the actuator (402) gradually increases from one end close to the central column to one end away from the central column, and the end of the actuator (402) away from the central column is arranged in an outer arc shape. Three accommodating cavities (402b) are arranged in each actuator (402), and the volume ratio of the middle accommodating cavity (402b) to the volume ratio of the remaining two accommodating cavities (402b) is 1:1.

3.

10. The surgical suture needle according to claim 8, characterized in that: The actuator (402) is made of a flexible material. The filling material includes a solid filler and silver nanoparticles uniformly distributed in the solid filler. A plurality of phase change liquid droplets are distributed in the solid filler. The phase change liquid droplets are fluorinated liquid.

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