CN114557741A - Suture needle and blood vessel suture method - Google Patents

Abstract

The invention relates to the technical field of medical equipment, in particular to a suture needle and a blood vessel suture method, which comprises a needle body, wherein one end of the needle body is a needle head, the other end of the needle body is a needle tail, the needle hole is arranged at one end of the needle body close to the needle head, in the process of surgical suture, the suture needle is always clamped on the needle holder without falling off and bouncing off with care, thereby avoiding switching and adjusting the part for clamping the suture needle, thereby shortening the suturing time and avoiding damaging the needle body, and the suturing needle of the invention repeatedly enters and exits from a fixed direction, reduces the operation difficulty, and the suture line slides into the arc-shaped groove when the needle is threaded through the arc-shaped groove, the diameter is indirectly reduced, the resistance is reduced, and the ports to be sutured form the everting mattress type suture line to avoid the lumen by knotting, so that the stimulation of the suture line to blood flow is reduced, and the success rate of anastomosis is finally increased.

Description

Suture needle and blood vessel suture method

Technical Field

The application relates to the technical field of medical equipment, and particularly discloses a suture needle and a blood vessel suture method.

Background

The suture needle is an instrument for suturing various tissues and consists of three basic parts, namely a needle point, a needle body and a needle eye, wherein the suture needle is one of necessary articles for operation and plays a vital role in the operation, and various suture needles belong to precise instruments.

In the conventional suture needle, a thread hole is reserved at the tail part of the suture needle, or the suture needle is wrapped by the tail part of the suture needle during production, and in the suture process, as shown in figure 1, the suture needle is inserted into the outer membrane of a blood vessel on one side, penetrates through the inner membrane, is extracted out of the outer membrane, is inserted into the inner membrane on the opposite side, is finally pulled together and knotted, and the suture is finished by using one needle. The continuous and discontinuous repeated suture finishes the anastomosis repair of blood vessels, the structure ensures that in the process of surgical suture, a needle holder needs to repeatedly hold the tail part of a suture needle in the suture process, the suture needle needs to be released for knotting when knotting, the suture needle needs to be clamped again when suturing again, and the suture needle adopting the structure has the following defects:

(1) the suture needle is clamped again in a long time and is adjusted to a position which is favorable for suture, for example, the repeated clamping of the suture needle is easy to cause 'bouncing off' and the tail damage radian of the suture needle is changed;

(2) if the sutured adventitia of the blood vessel needs to be subjected to 'eversion' suturing, the needle needs to be held and inserted reversely, the quality of anastomosis is reduced, and the speed is slowed down;

(3) if the reserved suture line is too long, the tail line pulling time needs to be adjusted, the operation visual field is small, more sutures occupy the visual field, and the speed of sewing needles and knotting is further reduced;

(4) if the reserved suture is too short, more suture needles are required, which results in waste of medical consumables and increases the time required for suturing.

Accordingly, the present inventors have provided a suture needle and a method of suturing a blood vessel to solve the above problems.

Disclosure of Invention

The invention aims to solve the problems that the traditional suture needle wraps the suture through the reserved thread hole at the tail part, the suture needle needs more time to be clamped again and adjusted to a position which is beneficial to suture in the surgical suture process, and the tail part of the suture needle is easy to damage.

In order to achieve the purpose, the basic scheme of the invention provides a suture needle which comprises a needle body, wherein one end of the needle body is a needle head, the other end of the needle body is a needle tail, and a needle hole is formed in one end, close to the needle head, of the needle body.

Further, the needle body is arc-shaped.

Further, the inner wall of the needle body is provided with an arc-shaped groove.

Further, the arc-shaped groove is in an eccentric shape.

Further, the shape of the needle head is a semi-circular arc.

Furthermore, the end part of the needle tail is provided with a smooth round corner surface.

Based on the same inventive concept, the invention provides a blood vessel suturing method, which comprises the following steps:

step S001, the gripper clamps the needle body, so that the needle head drives the needle line to enter from one side of the blood vessel wall and penetrate out from the other side of the blood vessel wall;

step S002, after the needle head drives the needle thread to penetrate out of the vessel wall at the other side of the blood vessel, the needle thread penetrating out of the vessel wall is clamped by tweezers;

s003, the clamp holder drives the needle body to withdraw the needle, cut off the needle thread clamped and tie off it;

and step S004, repeating the step S001 to the step S003, and cutting off the tail wire of the previous suture until the suture is completed.

Further, in step S002, the gripper drives the needle body to withdraw the needle or adjusts the direction of the suture needle to form a gap between the needle body and the needle line, and then the forceps are extended into the gap to grip the suture line.

Furthermore, in the process of knotting the needles and the threads, the needles and the threads which are respectively positioned outside the tube walls at the two ends of the blood vessel are orderly knotted together.

And further, in the process of knotting the needle threads, the needle threads positioned outside the wall of the same end of the blood vessel are knotted together in a staggered mode.

The principle and the effect of the scheme are as follows:

compared with the prior art, the needle hole is arranged at one end of the needle body close to the needle head, the suture needle is always clamped on the needle holder without falling off and bouncing off by taking care in the surgical suture process, the switching and the adjustment of the position for clamping the suture needle are avoided, the suture time is further shortened, the needle body is prevented from being damaged, the suture needle is repeatedly inserted and withdrawn from a fixed direction, the surgical difficulty is reduced, the suture slides into the arc-shaped groove when the needle is inserted, the diameter is indirectly reduced, the resistance is reduced, an everted mattress type suture line is formed at the port for suturing by knotting to avoid the lumen, the stimulation to blood flow is reduced, the success rate of anastomosis is finally increased, the problem that the traditional suture needle wraps the suture line through the reserved thread hole at the tail part is solved, the suture needle needs more time to be clamped again and is adjusted to the position which is beneficial to suture in the surgical suture process is solved, easily cause the damage of the tail part of the suture needle

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view showing a suturing process of a suturing needle in the prior art;

FIG. 2 shows a schematic view of a suturing needle in accordance with an embodiment of the present application;

FIG. 3 is a schematic view illustrating a suturing process of a suturing needle according to an embodiment of the present application;

FIG. 4 is a schematic needle path diagram illustrating a method of suturing a blood vessel according to an embodiment of the present disclosure;

FIG. 5 is a schematic needle and thread knotting diagram illustrating a method for suturing a blood vessel according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram illustrating needle and thread knotting in a method of suturing blood vessels according to the second embodiment of the present application;

fig. 7 is a schematic diagram illustrating needle and thread knotting in a vascular suturing method according to a third embodiment of the present application.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Reference numerals in the drawings of the specification include: the existing suture needle 1, needle thread 2, blood vessel 3, needle body 4, needle hole 5 and arc groove 6.

A suture needle, an embodiment of which is shown in fig. 2: including curved needle body 4, 4 one ends of needle body are the syringe needle, and the syringe needle is half circular arc, and the puncture end of syringe needle for the operation suture in-process is held, and the other end is the backshank, and the backshank tip is equipped with smooth fillet face, and the one end that needle body 4 is close to the syringe needle is equipped with pinhole 5, and 4 inner walls of needle body are equipped with the arc wall 6 of eccentric shape.

Based on the same inventive concept, the invention provides a blood vessel 3 suturing method, and the embodiment is shown in fig. 3, which comprises the following steps:

step S001, threading the suture 2 in the needle hole 5, clamping the needle tail position of the needle body 4 by using a needle holder when performing surgical suture, controlling the needle body 4 by using the clamp holder, leading the needle head to carry the suture 2 to enter from one side of the blood vessel 3, and leading the suture 2 to pass out from the tube wall of the other side of the blood vessel 3;

step S002, after the needle head drives the suture 2 to penetrate out of the tube wall at the other side of the blood vessel 3, the needle body 4 is slightly withdrawn or the direction of the suture needle is adjusted through the holder, because the hardness and the elasticity of the suture thread and the suture needle are different, a gap is formed between the needle body 4 and the suture 2 after the needle body is slightly withdrawn or the direction of the suture needle is adjusted, the suture 2 penetrating out of the tube wall of the blood vessel 3 is held through the forceps, and the suture 2 can be prevented from withdrawing after the forceps clamp tightly clamps the suture 2;

step S003, the clamp holder drives the needle body 4 to withdraw the needle, the needle body 4 withdraws the needle to make the suture 2 stay in the anastomotic end, the assistant cuts off the suture 2 remaining in the anastomotic end and ties;

and step S004, repeating the steps S001 to S003, and cutting off the tail thread of the previous suture until the suture is completed.

After multiple times of puncture and needle withdrawal, the route of the suture 2 is as shown in fig. 4, the suture 2 is divided into the first section, the second section, the third section and the fourth section … … according to the relative position of the suture 2 and the blood vessel 3, when knotting, the suture 2 respectively positioned outside the tube walls of the two ends of the blood vessel 3 are knotted together in sequence, as shown in fig. 5, the ends of the first section and the second section are cut off and knotted together, the ends of the fifth section and the sixth section are cut off and knotted together, and so on.

The second embodiment is different from the first embodiment only in that when knotting, the suture 2 positioned outside the wall of the same end of the blood vessel 3 is knotted in a staggered mode, as shown in fig. 6, the initial position is the same, after the end parts of the first section and the second section are cut off and knotted together, the fourth section and the sixth section are knotted together, and so on.

The difference between the third embodiment and the second embodiment is that when knotting, when knotting the sutures 2 positioned outside the same end wall of the blood vessel 3, and knotting the sutures 2 in a staggered manner, the gaps of the two sections of the sutures 2 knotted with each other are different, as shown in fig. 7, after the first section and the second section are cut and knotted together, the eighth section and the third section are knotted together, and so on, after the knotting of the sutures is finished, the port is knotted to form an eversion mattress type suture which avoids the lumen, thereby reducing the stimulation to the blood flow and finally increasing the success rate of anastomosis.

After the knotting in the knotting methods of the second and third embodiments is completed, the suture 2 in the blood vessel 3 needs to be cut and extracted.

The knotting mode adopted by the second embodiment and the third embodiment is suitable for suturing in special positions, is convenient to knot, and forms interrupted or endangium eversion (mattress type) suture by knotting, blood leakage of the anastomotic end of the blood vessel 3 is reduced by the suture mode, double pulling force can be provided by the tail wire after the suture, the cutting force of the tail wire on the wall of the blood vessel 3 is reduced when the end of the blood vessel 3 is lifted and fixed, the cutting resistance is increased, the suture can be continuously sewed clockwise intermittently, and whether foreign matters are brought into the lumen or not can be confirmed before each needle insertion.

Comparing current suture needle 1 that figure 1 demonstrates and sewing mode thereof, current suture needle 1 is gone into the needle by the 3 adventitia of blood vessel of one side and is penetrated the intima and go out the needle, again from the intima of offside and wear out the adventitia, draws together at last and ties, and a stitch is sewed up and is ended, and continuous discontinuous repeated sewing accomplishes the anastomotic restoration of blood vessel 3, needs the needle holder to hold the suture needle afterbody of pinching that need relapse in sewing process, need release the suture needle when knotting and knot, need centre gripping suture needle again when sewing up once more.

Compared with the prior suture needle 1 shown in figure 1, the suture needle disclosed by the invention is always clamped on a needle holder in the process of surgical suture without falling off and bouncing off, the switching and the adjustment of the part for clamping the suture needle are avoided, the suture time is further shortened, the suture needle is repeatedly inserted and discharged in a fixed direction, the surgical difficulty is reduced, the suture slides into an arc-shaped groove during the needle threading by arranging the arc-shaped groove 6, the diameter is indirectly reduced, the resistance in the needle threading process is reduced, an everted mattress type suture line formed at a port is avoided from a tube cavity, the stimulation to blood flow is reduced, the success rate of anastomosis is finally increased, the blood leakage condition at the anastomotic end of a blood vessel 3 is reduced, the cutting resistance is increased, the suture can be continuously performed clockwise, whether foreign matters are brought into the tube cavity before each needle insertion can be confirmed, and after the needle insertion is finished, the assistant knotts the knot completely, then cuts off the tail thread, shortens the time of sewing.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a suture needle, includes the needle body, and needle body one end is the syringe needle, and the other end is the backshank, its characterized in that: one end of the needle body close to the needle head is provided with a needle hole.

2. The suturing needle of claim 1, wherein the needle body is arcuate.

3. The suturing needle of claim 2 wherein the inner wall of the needle body defines an arcuate slot.

4. The needle of claim 3 wherein said arcuate slot is eccentrically shaped.

5. A needle as claimed in any one of claims 1 to 4 in which the needle tip is semi-circular in shape.

6. The needle of claim 1 wherein said trailing end portion is provided with a smooth rounded surface.

7. A vascular suturing method as claimed in any one of claims 1, 2, 3, 4 and 6, comprising the steps of:

step S001, the gripper clamps the needle body, so that the needle head drives the needle line to enter from one side of the blood vessel wall and penetrate out from the other side of the blood vessel wall;

step S002, after the needle head drives the needle thread to penetrate out of the vessel wall at the other side of the blood vessel, the needle thread penetrating out of the vessel wall is clamped by tweezers;

s003, the clamp holder drives the needle body to withdraw the needle, cut off the needle thread clamped and tie off it;

and step S004, repeating the steps S001 to S003, and cutting off the tail thread of the previous suture until the suture is completed.

8. The method for suturing blood vessel of claim 7, wherein in step S002, the needle body is driven by the gripper to withdraw the needle to form a gap between the needle body and the needle thread, and then the forceps are extended into the gap to grasp the suture thread.

9. The method of claim 7, wherein the sutures placed on the outer walls of the two ends of the blood vessel are sequentially tied together during the tying of the sutures.

10. The method of claim 7, wherein the needle thread is knotted alternately outside the wall of the same end of the vessel during the knotting of the needle thread.

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