Suture needle for surgical sutures

Abstract

This invention discloses a surgical suture needle, comprising: a needle body including a needle end, a needle middle, and a needle head connected to the needle middle; a threading component is provided on the needle end; and a bending assembly disposed on the needle head and the needle middle, including an outer winding layer wrapped around the suture middle and connecting edge rings disposed at both ends of the outer winding layer. A laser-driven flexible actuator is used to heat the filling material within the cavity, changing the volume of the filling material in the cavity through thermal load, thereby causing the expansion of a designated deformation frame, which in turn pushes the sides of the first bending indentation, thus achieving needle bending. Utilizing the characteristics of the deformation element, points on the needle can be heated, causing the deformation element to deform and bend the needle. This results in a simple structure, and the bending is performed non-contactly, ensuring that the needle is not contaminated by external tools during bending, and the bending force is controllable.

Description

Technical Field

[0001] This invention relates to the technical field of surgical sutures, and more particularly to a suture needle for surgical sutures. Background Technology

[0002] After surgery, in order to treat the wounds of various tissues and organs that were cut during the operation, a set of sutures is usually used to suture the surgical wounds until they heal.

[0003] Existing surgical suture sets include a suture needle and a suture, with the suture needle being curved and the suture connected to one end of the suture needle. Furthermore, existing suture needles are made of a high-rigidity material to maintain rigidity during insertion.

[0004] However, because the suture needles are made of a highly rigid material, they are not easy to bend, and therefore the curvature of the suture needles cannot be adjusted according to the needs of the surgery, so there is a need for further improvement. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

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

[0007] Therefore, the object of this invention is to provide a suture needle for surgical sutures.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a suture needle for surgical sutures, comprising,

[0009] The needle body includes a needle tip, a needle middle section, and a needle head connected to the needle middle section; a threading component is provided on the needle tip; and...

[0010] A bending assembly is disposed on the head and middle of the needle, including an outer wrapping layer wrapped around the middle of the suture thread and connecting edge rings disposed at both ends of the outer wrapping layer.

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

[0012] As a preferred embodiment of the suture needle for the surgical suture of the present invention, the threading component includes an end provided on the end of the suture, a threading hole opened on the end, and a winding groove provided on the side wall of the threading hole, wherein the winding groove is provided on the two side walls of the threading hole.

[0013] As a preferred embodiment of the suture needle for the surgical suture of the present invention, wherein: a plurality of alteration members are provided on the outer layer of the winding, the alteration members comprising a plurality of connecting units that are connected end to end to each other, the connecting units are hinged to each other, and the outer side of the connecting units is covered on the second bending indentation.

[0014] As a preferred embodiment of the suture needle for the surgical suture 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 to the sleeve block, and an intermediate strip disposed at the end of the second connecting rod. The intermediate strip is made of copper alloy. The sleeve block has a mating opening for the first connecting rod to mate with. The end of the first connecting rod away from the sleeve block has an installation end.

[0015] In a preferred embodiment of the suture needle for the surgical suture of the present invention, the mounting end is provided with a connecting ball, and the sleeve is provided with a spherical groove that mates with the connecting ball, wherein the upper opening of the spherical groove is smaller than the diameter of the connecting ball.

[0016] All connecting units are made of titanium alloy.

[0017] As a preferred embodiment of the suture needle of the surgical suture of the present invention, a deformable element is provided on the back side of the middle part of the suture needle near the first bending indentation and the second bending indentation, and recesses are provided on the middle part, the end part, and the head of the suture needle.

[0018] As a preferred embodiment of the suture needle for the surgical suture described in this invention, the deformable component includes a base, a plurality of actuators disposed on the base, and a non-stretchable membrane layer disposed between the base and the actuators. The base is provided with a plurality of protrusions that match the surface shape of the actuators.

[0019] The actuator includes a deformation frame and several receiving cavities disposed within the deformation frame. The receiving cavities are filled with filling material and have openings. The non-stretchable membrane layer is made of silk.

[0020] As a preferred embodiment of the suture needle for the surgical suture described in this invention, a partition is provided between several receiving cavities located on the same actuator. The partition is made of the same material as the actuator. The actuators are symmetrically arranged, with three on the left and three on the right.

[0021] The actuator size gradually increases from the end closer to the central column to the end farther away from the central column. The end of the actuator farther away from the central column is set in an outer arc shape. Each actuator has three accommodating cavities, and the volume ratio of the middle accommodating cavity to the remaining two accommodating cavities is 1:1.3.

[0022] As a preferred embodiment of the suture needle for the surgical suture 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, and a plurality of phase change droplets are distributed in the solid filler, wherein the phase change droplets are selected from fluorinated liquid.

[0023] The beneficial effects of the present invention are as follows: by using a laser thermally driven flexible actuator to heat the filling material in the cavity, the volume of the filling material in the cavity is changed by the thermal load, thereby causing the expansion of the specified deformation frame, which in turn pushes the two sides of the first bending indentation, thereby realizing the bending of the suture needle.

[0024] By utilizing the properties of deformable parts, points on the sewing needle can be heated, causing the deformable parts to deform and bend the sewing needle. This results in a simple structure, and the bending is performed in a non-contact manner, ensuring that the sewing needle is not contaminated by external tools during bending, and the bending force is controllable. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0026] Figure 1 This is a schematic diagram of the overall structure of the suture needle for the surgical suture of this invention.

[0027] Figure 2 This is a schematic diagram showing the position of the altered component in the overall structure of the suture needle of the surgical suture of the present invention.

[0028] Figure 3 This is a cross-sectional view of the structure at the first bend indentation of the suture needle in the surgical suture of the present invention.

[0029] Figure 4 This is a schematic diagram of the modified suture needle for the surgical suture of the present invention.

[0030] Figure 5 This is a schematic diagram of the connection of the suture needle of the surgical suture of the present invention.

[0031] Figure 6 This is a schematic diagram of the deformable part of the suture needle for the surgical suture of the present invention. Detailed Implementation

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the 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 phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0035] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0036] Example 1

[0037] Reference Figure 1-6 This is the first embodiment of the present invention, which provides a surgical suture needle, including a needle body 100. The needle body 100 includes a needle tip 101, a needle middle portion 102, and a needle head 103 connected to the needle middle portion 102. A threading component 104 is provided on the needle tip 101. The size of the needle tip 101 is larger than the size of the needle head 103. The needle tip 101 has grooves to generate friction when held by needle holders. The grooves on the needle tip 101 are diamond-shaped grooves. The diamond-shaped grooves are located in the rear third portion of the needle tip 101 and are recessed inward as a whole, so as not to hinder normal suture operation.

[0038] Furthermore, the present invention also includes a bending component 200, which enables the needle body 100 to be bent when needed, thereby bending it into needles with different degrees of curvature to facilitate sewing.

[0039] In this embodiment, the bending assembly 200 is disposed on the needle head 103 and the needle middle portion 102. The bending assembly 200 includes a winding outer layer 201 wrapped around the needle middle portion 102 and connecting edge rings disposed at both ends of the winding outer layer 201. The winding outer layer 201 is sleeved on the needle middle portion 102 and tightly fused with the needle middle portion 102, while the connecting edge rings are circular, extend from the winding outer layer 201, and remain in contact with the outer wall of the needle middle portion 102.

[0040] Furthermore, the needle tip 101, the needle middle 102, and the needle head 103 are integrally formed. A first bending indentation 202 is provided between the needle tip 101 and the needle middle 102, and a second bending indentation 203 is provided between the needle middle 102 and the needle head 103. Both the first bending indentation 202 and the second bending indentation 203 are micro-indentations, slightly recessed inward.

[0041] Furthermore, in this embodiment, the threading component 104 includes an end 104a disposed on the end of the thread, a threading hole 104b opened on the end 104a, and a winding groove 104c disposed on the side wall of the threading hole 104b. The winding groove 104c is disposed on the two side walls of the threading hole 104b.

[0042] When threading, the operator inserts the thread into the threading hole 104b, then pulls it out and wraps it around the wrapping groove 104c, and then ties a knot. By going around the wrapping groove 104c, the thread end is brought closer to the thread body, making it easier to tie the knot later.

[0043] Furthermore, several modifiers 300 are provided on the outer layer 201. The modifiers 300 are used to make the needle bend more smoothly when the needle curvature is changed later. Preferably, the needle is bent in a more curved direction rather than in a straight direction.

[0044] In this embodiment, the alteration component 300 includes a plurality of connecting units 301 connected end to end, the connecting units 301 are hinged to each other, and the outer side of the connecting unit 301 is covered on the second bending indentation 203.

[0045] The alteration component 300 is disposed between the outer winding layer 201 and the middle part of the needle 102, thereby creating an annular recess in the middle part of the needle 102 for mounting the alteration component 300.

[0046] Furthermore, in this embodiment, the connecting unit 301 includes a plurality of first connecting rods 301a arranged in a ring array, a sleeve block 301b connected to the end of the first connecting rod 301a, two second connecting rods 301c hinged to the sleeve block 301b, and an intermediate strip 301d disposed at the end of the second connecting rod 301c. The intermediate strip 301d is disposed at the end away from the second connecting rod 301c, and both ends of the intermediate strip 301d are connected to the second connecting rod 301c. The intermediate strip 301d is made of copper alloy. A mating port for the first connecting rod 301a to mate with is provided on the sleeve block 301b. 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 that mates with the connecting ball 303 is provided on the sleeve block 301b. 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 units 301 are all made of titanium alloy.

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

[0050] Furthermore, in this embodiment, the deformable component 400 includes a base 401, an actuator 402, and a non-stretchable membrane layer disposed on the surface of the base 401. The actuator 402 includes a deformable frame 402a and a receiving cavity 402b disposed within the deformable frame 402a. The receiving 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 provided in the middle. The base 401 extends from the outside to cover the back of each actuator 402, covering the entire surface of the deformable component 400 and the actuator 402. The non-stretchable membrane 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. Several protrusions matching the surface shape of the actuator 402 are provided on the base 401. An opening is provided in the receiving cavity 402b. In this embodiment, the non-stretchable membrane layer is a hard membrane.

[0051] Furthermore, partitions 404 are provided between several accommodating cavities 402b located on the same actuator 402, and the material of the partitions 404 is the same as that of the actuator 402. In this embodiment, there are two partitions 404 on each actuator 402, and thus there are three accommodating cavities 402b in each actuator 402.

[0052] Furthermore, the size of each actuator 402 gradually increases from the end closer to the central column to the end farther away from the central column. When viewed from directly above the actuator 402, the two long sides of the actuator 402 bend outwards in a straight line after being bent at the deformable part 400, and the direction of extension is the length direction of the middle section of the sewing needle. At the end of the actuator 402 away from the central column, it is set as an outer arc shape, which connects the two long sides of the actuator 402. The actuator 402 is similar to a long waist-shaped groove.

[0053] Preferably, each actuator 402 has three accommodating cavities 402b, 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.

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

[0055] The solid filler contains several phase change droplets, which are fluorinated liquids. In the specific design of the phase change droplets, low-melting-point organic solvents are used. Alcohol is a commonly used low-boiling-point solvent, but alcohol has a high boiling point and high driving temperature can easily damage the suture needle. Fluorinated liquids can be used as low-boiling-point organic solvents. At a low temperature of 40 degrees Celsius, the gripper body can deform, thereby controlling the opening and closing of the fingers, thus achieving ultra-high sensitivity output force. In the actual selection of fluorinated liquids, electronic fluorinated liquids are used, and hydrofluoroether solvents contain 2% by mass of fluorinated acrylic polymer.

[0056] Operation process: The flexible actuator 402 driven by laser heat is used to heat the filling material in the cavity 402b. The volume of the filling material in the cavity is changed by the heat load, thereby causing the expansion of the specified deformation frame 402a, which in turn pushes the two sides of the first bending indentation 202, thereby achieving the bending of the suture needle.

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

[0058] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0060] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A suture needle for surgical sutures, characterized in that: include, The needle body (100) includes a needle tip (101), a needle middle portion (102), and a needle head (103) connected to the needle middle portion (102). A threading component (104) is provided on the needle tip (101); and... A bending assembly (200) is disposed on the head (103) and middle (102) of a needle, including a winding outer layer (201) wrapped around the middle of the needle and connecting edge rings disposed at both ends of the winding outer layer (201). The needle end (101), the middle (102) and the head (103) are integrally disposed. A first bending indentation (202) is provided between the needle end (101) and the middle (102), and a second bending indentation (203) is provided between the middle (102) and the head (103). The inner side of the outer wrapping layer (201) is provided with a plurality of alteration components (300). Each alteration component (300) includes a plurality of connecting units (301) connected end to end. The connecting units (301) are hinged to each other, and the outer side of each connecting unit (301) covers the second bending groove (203). The back side of the middle part (102) of the needle near the first bending groove (202) and the second bending groove (203) is provided with a deformation component (400). The middle part (102), the end part (101), and the head part (103) of the needle are all provided with recesses. The threading component (104) includes an end (104a) provided on the end part of the needle and a threading hole (104a) provided on the end (104a). 04b) and winding grooves (104c) provided on the side wall of the wire hole (104b), the winding grooves (104c) being provided on the two side walls of the wire hole (104b), the connecting unit (301) including a first connecting rod (301a), a sleeve block (301b) connected to the end of the first connecting rod (301a), two second connecting rods (301c) hinged to the sleeve block (301b), and an intermediate strip (301d) provided at the end of the second connecting rods (301c), the intermediate strip (301d) being made of copper alloy, the sleeve block (301b) having a mating opening for the first connecting rod (301a) to mate with, and the end of the first connecting rod (301a) away from the sleeve block (301b) having an installation end (302).

2. The suture needle for surgical sutures as described in claim 1, characterized in that: The mounting end (302) is provided with a connecting ball (303), and the sleeve block (301b) is provided with a spherical groove (304) that mates with the connecting ball (303). The upper opening of the spherical groove (304) is smaller than the diameter of the connecting ball (303). All connecting units (301) are made of titanium alloy.

3. The suture needle for surgical sutures as described in claim 1, characterized in that: The deformable component (400) includes a base (401), a plurality of actuators (402) disposed on the base (401), and a non-stretchable membrane layer disposed between the base (401) and the actuators (402). The base (401) has a central column structure in the middle, and the base (401) has a plurality of protrusions that match the surface shape of the actuators (402). The actuator (402) includes a deformable frame (402a) and a plurality of receiving cavities (402b) disposed within the deformable frame (402a). The receiving cavities (402b) are filled with filling material and have openings. The non-stretchable membrane layer is made of a hard membrane.

4. The suture needle for surgical sutures as described in claim 3, characterized in that: A partition (404) is provided between a plurality of receiving cavities (402b) located on the same actuator (402). The partition (404) is made of the same material as the actuator (402). The plurality of actuators (402) are arranged symmetrically, with three on the left and three on the right. The actuator (402) is sized to gradually increase from the end near the central column to the end away from the central column. The end of the actuator (402) away from the central column is set to be an outer arc shape. Each actuator (402) has three accommodating cavities (402b), 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.

5. The suture needle for surgical sutures as described in claim 4, characterized in that: The actuator (402) is made of a flexible material. The filling material includes solid filler and silver nanoparticles uniformly distributed in the solid filler. Several phase change liquid droplets are distributed in the solid filler. The phase change liquid droplets are fluorinated liquid.

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