CN107961049B

CN107961049B - Medical suture needle with variable clamping angle and medical suture bag with medical suture needle

Info

Publication number: CN107961049B
Application number: CN201810018204.6A
Authority: CN
Inventors: 吴路鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-09
Filing date: 2018-01-09
Publication date: 2022-11-11
Anticipated expiration: 2038-01-09
Also published as: CN107961049A

Abstract

The utility model provides a medical sewing needle of variable centre gripping angle and medical package of sewing up thereof, the sewing needle is the arc needle and its pinpoint portion, main part and the afterbody that includes integrated into one piece, the main part is provided with two at least flat clamping faces along its axial, and each flat clamping face is arc with adjacent side butt joint department, and two flat clamping faces of this main part are along sewing needle axial rotation to form spiral needle body. The main body part of the suture needle is provided with two flat clamping surfaces along the axial direction, so that the needle is clamped and fixed by matching with a needle holder, two ends of the two flat clamping surfaces rotate towards opposite directions, a spiral main body structure of the two flat clamping surfaces is formed, a needle body structure which can be fixed by matching with the needle holder and has multiple angles is provided, the technical problem in the prior art is solved, and the suture difficulty is greatly reduced when deep tissue suture or minimally invasive surgery suture is carried out.

Description

Medical suture needle with variable clamping angle and medical suture bag with medical suture needle

Technical Field

The invention relates to the field of suture needles for surgical suture, in particular to a medical suture needle with a variable clamping angle and a medical suture package with the medical suture needle.

Background

The suture is one of the most basic operations in the surgical operation, almost all the operations need to be performed by applying suture needles and suture lines for ligation and suture, and the proper suture needle is selected according to the requirements of the operations, which is the basic condition for ensuring the smooth operation. The suture needle consists of a needle head, a needle body and a needle tail. In the operation, different needles (round, triangular, rhombic, shovel-shaped and the like) are used for guided puncture. The needle body has the same structure of rectangle, shovel, round, drum and the like. The needle tail is generally divided into a traditional needle tail with an eyelet and an integrated needle tail of a slotted nested suture (Chinese patent No. 98223454.6; publication No. 2324396; date 1999-06-02).

In an actual operation, a doctor clamps a suture needle by using a needle holder to bite the needle body part, and changes a puncture angle through rotation of a wrist. However, in deep tissue suturing or minimally invasive endoscopic surgery, the fixed occlusion angle of the needle holder and the suture needle cannot be compensated by the rotation of the wrist joint of the operator, which causes difficulty in suturing.

At present, in the needle body design of all suture needles, only a circular needle body can ensure the three-dimensional multi-angle occlusion of a needle holder and the suture needle. However, in practice, the needle holder is very easy to slip when holding a round needle, so that the needle holder is unstable in holding, and therefore, the needle body (such as rectangular or drum) with a flat part is mostly adopted clinically to ensure the holding stability of the needle holder. Then, if a needle body design can ensure the stability of clamping and realize the multi-angle sewing direction, the sewing difficulty of the difficult part is greatly reduced.

Disclosure of Invention

The invention solves the problems that the needle insertion direction is single, the suture is difficult and the like due to limited wrist movement or incapability of holding the needle by hands of the suture needle.

In order to solve the above problems, the present invention provides a medical suture needle with a variable clamping angle, which is an arc needle and includes a needle tip portion, a main body portion and a needle tail portion that are integrally formed, wherein the main body portion is provided with at least two flat clamping surfaces along an axial direction thereof, a butt joint portion between each flat clamping surface and an adjacent side surface is arc-shaped, and the two flat clamping surfaces of the main body portion axially rotate along the suture needle to form a spiral needle body.

Further preferably: the two ends of the main body part rotate in opposite directions to obtain two spiral flat surfaces.

Further preferably: the two ends of the main body part rotate 45 degrees towards opposite directions to form a main body structure with two flat clamping surfaces forming a 90-degree spiral, so that a clamping structure of the multi-angle sewing needle is provided.

Further preferred is: the two flat clamping surfaces are parallel to each other and are arranged oppositely.

Further preferred is: the radial section of the main body part is at least quadrangular.

Further preferred is: the radial section of the main body part is rectangular, and four corners of the rectangular section are arc-shaped.

Further preferred is: the radial section of the main body part is drum-shaped, the drum-shaped section is provided with two parallel and opposite flat clamping surfaces, and the two flat clamping surfaces are connected by an arc surface.

Further preferred is: the needle tip part is an arc-shaped cone, or a triangular cone, or a cone with a rhombic section, or a flat cone.

Further preferred is: the needle tail part is an arc-shaped cylinder, the radial section of the needle tail part is circular, and one or two blind holes are formed in the needle tail part along the axial direction of the needle tail part.

The medical suture package comprises a sterilization package bag, a suture needle and a suture line, wherein the suture needle is the medical suture needle with the variable clamping angle, the tail end of the suture needle is connected with the suture line, and the suture needle and the suture line are arranged in the sterilization package bag.

Compared with the prior art, the invention has the following advantages:

the main body part of the suture needle is provided with two flat clamping surfaces along the axial direction, the two flat clamping surfaces are parallel to each other and are oppositely arranged so as to be matched with a needle holder to clamp and fix the needle, the two ends of the two flat clamping surfaces rotate towards opposite directions, and therefore a spiral main body structure of the two flat clamping surfaces is formed, a needle body structure which can be matched with the needle holder to fix the needle body structure at multiple angles is further provided, the existing technical problem is solved, and the suture difficulty is greatly reduced when deep tissue suture or minimally invasive surgery suture is carried out.

Drawings

Fig. 1 is a schematic perspective view of the structures of embodiment 1 and embodiment 2 of the present invention;

FIG. 2 is a schematic structural diagram of

embodiments

1 and 2 of the present invention;

FIG. 3 is a sectional view of the main body part structure in embodiment 1 of the present invention;

FIG. 4 is a sectional view of the main body part structure in embodiment 2 of the present invention;

FIG. 5 shows a needle holder for holding a medical suture needle according to examples 1 and 2 of the present invention;

FIG. 6 is a schematic structural view of the needle holder holding the front 1/3 part of the main body of the medical suture needle in examples 1 and 2 of the present invention;

FIG. 7 is a schematic structural view of a middle section of a main body portion of a medical suture needle held by a needle holder according to

embodiments

1 and 2 of the present invention;

FIG. 8 is a schematic structural view of the rear 1/3 part of the main body part of the medical suture needle held by the needle holder in examples 1 and 2 of the present invention.

Detailed Description

The existing suture needle with a flat part is designed in such a way that a needle body is bent to form a certain radian, and the flat part is positioned on the inner side and the outer side of a curved needle, so that when a needle holder clamps the needle body, the clamping stability is ensured, but the puncture angle of a needle head is limited, and the puncture direction can only be changed by means of the rotation of a wrist; if the design of the circular needle body is adopted, the angle of the puncture direction of the needle head is greatly improved, but the clamping stability is poor, and the needle head is easy to swing when a tough tissue is punctured. With the progress of minimally invasive technology, many open surgeries are replaced by minimally invasive surgeries, and endoscopic suturing is very common; however, the defects of the conventional suture needle are obvious, and if the suture needle with a flat part is used, the needle inserting direction is single and the suture is difficult because the wrist movement is limited or the needle cannot be held by the hand; if a suture needle with a circular needle body is used, the puncture tends to swing and deviate due to poor holding stability.

The inventor aims at the technical problems and finds that through analysis of reasons, the medical suture needle with the variable clamping angle comprises a needle point part, a main body part and a needle tail part which are integrally formed, wherein the main body part is provided with at least two flat clamping surfaces along the axial direction of the main body part, the butt joint part of each flat clamping surface and the adjacent side surface is in a circular arc shape, and the two flat clamping surfaces of the main body part rotate along the axial direction of the suture needle to form a spiral needle body.

In the above scheme, the main body part of the suture needle adopts a spiral needle body design, so that the puncture direction of the needle head is changed along with the change of the position of the needle clamping body of the needle holder, and the cross section of the needle clamping body is provided with two mutually parallel flat clamping surfaces, so that the clamping stability is ensured, and the suture difficulty of difficult parts is greatly reduced. When the needle holder is used, when the needle holder clamps the front 1/3 part of the needle body, the needle head is in a clamping state of a front lower angle, when the needle holder clamps the middle 1/3 part of the needle body, the needle head is in a clamping state of a front or a state close to the front (basically equal to the clamping state of a conventional suture needle), and when the needle holder clamps the back 1/3 part of the needle body, the needle head is in a clamping state of a front upper angle; the surgeon obtains a wider needle insertion angle through the difference of the needle body point positions of the needle holder to realize almost no dead angle suture to the tissue, meanwhile, the needle body is provided with two parallel flat clamping surfaces to further ensure the stability of the needle holder, and the maximum diameter of the section of the needle body is consistent regardless of the rotation, so the damage to the tissue is not increased, and the needle holder can be applied to the design of a non-traumatic suture needle; the edges of the flat surfaces of the main body part must be chamfered to avoid sharp cutting of the needle body on the tissue.

In addition, the tapered part of the needle head of the suture needle is smoothly transited with the spiral needle body, after the edge is polished and chamfered, the side surface has no cutting edge, the tissue is not cut, and the puncture gap of the suture needle can be ignored under the condition that the suture needle is small enough, so that the structure which is infinitely close to the non-invasive suture needle is provided.

The following detailed description of embodiments of the invention refers to the accompanying drawings.

Example 1

Referring to fig. 1 to 2, a medical suture needle with a variable clamping angle is arc-shaped and includes a needle tip portion 1, a main body portion 2 and a needle tail portion 3 which are integrally formed.

As shown in fig. 1 to fig. 2, the needle tip portion 1 is an arc shape and may be a cone, a triangular pyramid, a pyramid with a rhombic cross section, a flat shovel cone, a blunt needle, etc., and the needle tip portion is preferably an arc shape of a cone, and in this embodiment, the needle tip portion 1 of the suturing needle is an arc shape of a cone.

Referring to fig. 1 to 2, the needle tail portion 3 is an arc-shaped cylinder, and the radial cross section of the needle tail portion is circular, and the needle tail portion 3 is provided with one or two blind holes 31 along the axial direction thereof: when the needle tail part 3 is provided with a blind hole 31, and the blind hole 31 is nested with a suture; when the needle tail portion 3 is provided with two blind holes, the two blind holes are arranged side by side in the present embodiment, and the example in which the needle tail portion 3 is provided with one blind hole 31 will be described.

As shown in fig. 1 to 2, the main body 2 is provided with at least two flat clamping surfaces 21 along the axial direction thereof, and the joint of each flat clamping surface 21 and the adjacent side surface is in a circular arc shape, specifically: edges formed at the joint of each flat clamping surface 21 and the adjacent side surface are subjected to rounding treatment to form an arc shape, so that the outer surface of the joint of the flat clamping surface and the adjacent side surface is smooth, the sharp cutting of biological tissues by the edges is avoided in the use process of the suture needle, and the requirements of theoretically nondestructive suture needles are infinitely approached (shown in a combined graph 3 and a graph 4); the flat holding surfaces 21 of the main body 2 are rotated in the axial direction of the suture needle to form a spiral needle body.

Preferably: the two flat clamping surfaces 21 are two planes parallel to each other.

The radial cross section of the main body 2 is at least quadrilateral, and in this embodiment, the radial cross section of the main body 2 is rectangular (see fig. 3), and four corners of the rectangular cross section are arc-shaped.

Specifically, the method comprises the following steps: referring to fig. 1 to 2, two ends of the main body 2 rotate in opposite directions to obtain two spiral flat surfaces, in this embodiment, two ends of the main body 2 rotate in opposite directions by 45 degrees to form a main structure with two flat clamping surfaces 31 at the head and the tail in a 90-degree spiral, so as to provide a clamping structure for a multi-angle suture needle.

As shown in fig. 1 to 2, the main body 2 of the suture needle of the present embodiment is provided with two flat clamping surfaces 21 along the axial direction thereof, the two flat clamping surfaces 21 are parallel to each other and are oppositely disposed to cooperate with a needle holder a to clamp and fix the needle, and two ends of the two flat clamping surfaces 21 rotate in opposite directions, so as to form a main body structure with two spiral flat clamping surfaces 21, thereby providing a needle body structure capable of cooperating and fixing with the needle holder at multiple angles, solving the technical problems of the prior art, and greatly reducing the suture difficulty when suturing deep tissue or minimally invasive surgery; as described with reference to fig. 5 to 8, in actual use, the needle holder a holds the front 1/3 part of the body 2 with the needle tip 1 in a downward forward angled holding state, the needle tip 1 in the forward or near forward holding state (substantially equivalent to the holding state of a conventional suture needle) when the holder a holds the middle 1/3 part of the body 2, and the needle tip 1 in the upward forward angled holding state when the holder a holds the rear 1/3 part of the body 2; then, the surgeon obtains a larger range of needle inserting angles through the difference of the needle body point positions of the needle holder, so that the suture with almost no dead angle to the tissue is realized, meanwhile, the medical suture needle is provided with two mutually parallel flat clamping surfaces 21, so that the stability of the needle holder is ensured, the maximum diameters of the sections of the needle bodies are consistent no matter how the medical suture needle rotates, the damage to the tissue is not increased, and the medical suture needle can be applied to the design of a non-invasive suture needle; the edges of each flat clamping surface 21 of the main body part 2 must be chamfered, so as to avoid sharp cutting of the needle body on tissues; in addition, the sharp part of the needle tip part 1 of the invention is smoothly transited with the spiral main body part 2, and after the edge is polished and chamfered, the side surface has no cutting edge, thereby providing a wireless and near-damage suture needle structure.

Referring to fig. 1 to 2, in the manufacture of the suture needle of the present embodiment, an elongated rectangular column-shaped material is first provided and cut into a predetermined length, and then a portion to be combined with a suture, i.e., a needle tail portion 3, is formed at one end of the elongated material. For example, a blind hole 31 may be drilled in the axial direction of the strip or a hole with a hole; holding two ends of the strip-shaped material, and respectively rotating the two ends in opposite directions by a certain angle (similar to twisting a towel) to obtain a main body part 2; grinding the head end and the middle part of the material by oilstone or the like to form a sharp needle point and a chamfered needle body, carrying out rough buff polishing or another polishing by fine oilstone or the like, and removing the grinded stripes by buff polishing, electrolytic polishing or the like to form a mirror-polished surface; then the strip material is concavely bent into a specified radian, and then is subjected to heat treatment and surface treatment to obtain a final finished product, wherein the bending direction is as follows: the flat clamping surfaces formed by punching at the center of the sewing needle main body are located at the inner side and the outer side of the bend.

The medical suture package comprises a sterile packaging bag, a suture needle and a suture line, wherein the suture needle is the medical suture needle with the variable clamping angle in the embodiment, the tail end of the suture needle is connected with the suture line, and the suture needle and the suture line are arranged in the sterile packaging bag.

Example 2:

referring to fig. 1 to 2, a medical suture needle with a variable clamping angle includes an arc-shaped needle body, a needle tip 1, a main body 2, and a needle tail 3.

The needle tip and the needle tail in this embodiment are identical to those in embodiment 1, and further description is omitted here.

Referring to fig. 1 to 2, the main body 2 is provided with two flat clamping surfaces 21 along the axial direction thereof, the edge of each flat clamping surface 21 is a circular corner, and the two flat clamping surfaces 21 of the main body 2 rotate along the axial direction of the suture needle to form a spiral needle body.

Preferably, the following components: the two flat clamping surfaces 21 are two planes parallel to each other.

As shown in fig. 1 to 2, the main body 2 has a radial cross section of at least a quadrilateral shape; the radial section of the main body part 2 is drum-shaped (see fig. 4), the drum-shaped section has two parallel and opposite flat clamping surfaces 21, and the two flat clamping surfaces 21 are connected by an arc surface.

Specifically, the method comprises the following steps: referring to fig. 1 to 2, the two ends of the main body 2 rotate in opposite directions to obtain two spiral flat surfaces, in this embodiment, the two ends of the main body 2 rotate in opposite directions by 45 degrees to form a main body structure in which the flat clamping surfaces 21 at the front and rear ends of the main body 2 are spiral by 90 degrees, so as to provide a clamping structure of a multi-angle suture needle.

Referring to fig. 1 to 2, the main body 2 of the suture needle described in this embodiment is provided with two flat clamping surfaces 21 along the axial direction thereof, the two flat clamping surfaces 21 are parallel to each other and are oppositely disposed to cooperate with the needle holder a to clamp and fix the needle, and both ends of the two flat clamping surfaces 21 rotate in opposite directions to form a spiral main body structure of the two flat clamping surfaces 21, so as to provide a needle body structure capable of cooperating and fixing with the needle holder at multiple angles, thereby solving the technical problem of the prior art, and greatly reducing the difficulty of suturing when suturing deep tissue suture or minimally invasive surgery suture, as described in fig. 5 to 8, when in actual use, the needle holder a clamps the front 1/3 part of the main body 2, the needle head of the needle tip 1 is in a clamping state at a front-down angle, and when the needle holder a clamps the middle 1/3 part of the main body 2, the needle head of the needle tip 1 is in a clamping state at a front or close to a front clamping state (basically equal to a clamping state of a conventional suture needle), and when the needle holder a rear 1/3 part of the main body 2 clamps the needle head; the surgeon can obtain different needle point orientations through different needle body point positions of the needle holder, so that a larger range of needle inserting angles can be obtained, the tissue can be sutured almost without dead angles, meanwhile, the needle body is provided with two mutually parallel flat clamping surfaces, the stability of the needle holder is further ensured, the maximum diameter of the section of the needle body is consistent regardless of the rotation, the damage to the tissue is not increased, and the needle holder can be applied to the design of a non-traumatic suture needle; the edges of each flat surface of the main body part must be subjected to chamfering treatment, so that the sharp cutting of the needle body to tissues is avoided; in addition, the tapered part of the needle head of the invention is smoothly transited with the spiral needle body, and after the edge is polished and chamfered, the side surface has no cutting edge, thereby providing a structure which is wireless and close to a nondestructive suture needle.

Referring to fig. 1 to 2, in manufacturing the suture needle of the present embodiment, a round bar is first processed. Carrying out wire drawing processing on a stainless steel metal wire, wherein the front end of the stainless steel metal wire is processed into a needle tip part 1, and the rest part of the stainless steel metal wire is processed into a cylinder; in order to reliably hold the suture when the suture needle is clamped by a needle holder in an operation, the flat clamping surface is arranged on the side surface of the suture needle, punching processing is carried out, so that the needle body forms two parallel flat clamping surfaces 21, the main body part rotates clockwise and anticlockwise for a certain angle (such as 45 degrees) along the axial direction, and the process is similar to towel twisting; the needle tail can be laterally provided with holes to be used as threading suture needles, and one or two blind holes 31 can be drilled in the axial direction (the holes are drilled one by one through electric discharge machining, laser drilling or a drill bit); the needle tip portion 1 is formed by grinding with oilstone or the like, rough buff polishing or another polishing with fine oilstone or the like is performed, and the ground streaks are removed by buff lapping, electropolishing or chemical polishing to make it a mirror-polished surface; finally, the needle is bent to a concave curvature, followed by heat treatment and surface treatment to obtain the final product. Direction of bending of the suture needle: the flat clamping surfaces formed by punching at the center of the sewing needle main body are located at the inner side and the outer side of the bend.

The medical suture package comprises a sterile package bag, a suture needle and a suture line, wherein the suture needle is the medical suture needle with the variable clamping angle in the embodiment, the tail end of the suture needle is connected with the suture line, and the suture needle and the suture line are arranged in the sterile package bag.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto, and variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims

1. Medical sewing needle of variable centre gripping angle, its characterized in that: the needle is an arc needle and comprises an integrally formed needle tip part, a main body part and a needle tail part, wherein the main body part is provided with at least two flat clamping surfaces along the axial direction of the main body part, the butt joint part of each flat clamping surface and the adjacent side surface is arc-shaped, and the two flat clamping surfaces of the main body part rotate along the axial direction of the sewing needle to form a spiral needle body.

2. The variable grip angle medical suture needle according to claim 1, wherein: the two ends of the main body part rotate in opposite directions to obtain two spiral flat surfaces.

3. The variable grip angle medical suture needle according to claim 2, wherein: the two ends of the main body part rotate 45 degrees towards opposite directions to form a main body structure with two flat clamping surfaces forming a 90-degree spiral, so that a clamping structure of the multi-angle sewing needle is provided.

4. The variable grip angle medical suture needle according to any one of claims 1 to 3, wherein: the two flat clamping surfaces are parallel to each other and are arranged oppositely.

5. The variable grip angle medical suture needle according to claim 4, wherein: the radial section of the main body part is at least quadrangular.

6. The variable grip angle medical suture needle according to claim 5, wherein: the radial section of the main body part is rectangular, and four corners of the rectangular section are all arc-shaped.

7. The variable grip angle medical suture needle according to claim 5, wherein: the radial section of the main body part is drum-shaped, the drum-shaped section is provided with two parallel and opposite flat clamping surfaces, and the two flat clamping surfaces are connected by an arc surface to form a solid structure.

8. The variable grip angle medical suture needle according to claim 1, wherein: the needle tip part is an arc-shaped cone, or a triangular cone, or a cone with a rhombic section, or a flat cone.

9. The variable grip angle medical suture needle according to claim 1, wherein: the needle tail part is an arc-shaped cylinder, the radial section of the needle tail part is circular, and one or two blind holes are formed in the needle tail part along the axial direction of the needle tail part.

10. Medical package of sewing up, it includes sterilization wrapping bag, sewing needle and stylolite, its characterized in that: the suture needle is the medical suture needle with the variable clamping angle in the claim 1, and the tail end of the suture needle is connected with a suture thread, and the suture needle and the suture thread are arranged in the sterilized packaging bag.