CN111588428A - A suture needle with thread - Google Patents

Abstract

A suture needle with thread comprises a suture needle and a suture thread, the suture thread is fixedly connected with the tail end of the suture needle, and a plurality of branches can be formed at any position of the suture thread. The suture includes a main thread portion, and the main thread portion is fixedly connected with the tail end of the sewing needle. By having multiple separable threads at the end of the needle, when suturing irregular wounds and bone fragments, one or more threads can be added for knotting with the remaining threads of other sutures, so that the The incision is more neatly aligned, the force is more stable, and the postoperative healing effect is better. By setting up multiple branch threads, the thread can be passed through the same suture hole at the same time, avoiding multiple threading operations, and solving the problem that multiple threads are required but difficult to operate in practice. Tensile strength, the suture bone piece can bear more force and make the suture fixation more stable. Avoid stretching, loosening or even breaking the wire due to excessive force, resulting in deformed or even non-union of the bone after healing.

Description

A suture needle with thread

technical field

The invention relates to a wound suture instrument, in particular to a suture needle with thread, in particular to a suture needle with thread used for suturing multiple bone fragments or irregular wounds in fracture operations.

Background technique

A suture needle with thread is a suture device in which the needle and suture are connected together. The pharmaceutical industry standard "YY0166-2002" has made specific requirements for its physical properties. The needle thread is single needle single thread or double needle single thread

For irregular wounds, such as cross-shaped wounds, it is difficult to fix when sutured, and purse treatment is often required. In the prior art, a Chinese patent (CN201821828895.8 A multi-branched surgical suture device) proposes a technical solution, including a suture thread, a suture needle clamp, a suture needle, a perforation at the tail, the tail of the suture needle, the front end of the suture needle, The needle point of the suture needle and the needle point perforation, the head end of the suture needle clamping part is connected with the tail end of the suture needle, the tail end contains a tail hole, the needle point perforation is located at the needle tip of the suture needle, and the suture thread can be used through the tail hole or through the needle point hole, The suture can be set to 5, 6 or 8 ends, and the center of the suture is fixedly connected. Its advantages are shown in: (1) The multi-head suture set can be used for purse-string suture or suture of irregular wounds. Its use is based on the number of branches of the wound to determine the number of suture heads used. Disadvantages of this suture 1: The number is fixed, and various types (number of suture heads) need to be equipped for backup; 2. It is inconvenient to use, multiple sutures are connected to each other, and the suture that has been sutured needs to be sutured for the next 3. It is difficult to balance the tension between multiple wounds. Since the threads have been fixedly connected, it is basically impossible to adjust the tension between each wound and the central connection after suture, which requires suture operation. Very high, which greatly increases the difficulty of operation.

For the suture of fractures, similar to irregular wounds, the bone fragments are pulled together after threading, and similar problems are encountered with the suture of irregular wounds. It is whether the tension between multiple points is uniform. In addition, the suture of bone fragments is more difficult, the position of the soft tissue itself is relatively stable, and the position of bone fragments is more flexible than that of soft tissue, and there are even bone fragments that are separated from the human body. At this time, it is basically inoperable to use the multi-head thread in the prior art as described above to sew. On the one hand, the tension is difficult to maintain evenly, and on the other hand, it cannot be adjusted once stitched.

In addition, the suture of bone fragments often requires the suture of multiple threads to each part to enhance the fixation effect. Usually, when multiple threads are sutured and fixed at a single position, a single needle and single thread are generally used first, and then a second thread suture needle is inserted into the original channel, but the space of the original channel is narrow. , There is already a thread in the channel, which increases the resistance of needle insertion, especially when the bone fragments are sutured, the bone is relatively hard, and it is difficult to insert a second needle in the original channel. For soft tissue sutures, it is difficult to keep the second needle in the same needle hole as the first needle. All of these make the single-thread suture needle with a narrow range of trials when suturing bone fragments or wounds that require strong pulling force.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a method that facilitates suturing of irregular wounds, performs multi-point pulling and fixing for irregular wounds, and has uniform pulling force at each point, and at the same time facilitates the alignment and suturing of bone fragments in fracture operations.

In order to achieve the above objects, the present invention includes a suture needle and a suture thread, the suture thread is fixedly connected to the tail end of the suture needle, and is characterized in that no less than two branches can be formed at any position of the suture thread.

Further, the suture includes a main thread portion, and the main thread portion is fixedly connected to the tail end of the sewing needle; the main thread portion can form a plurality of branches at any position.

Further, the main thread portion includes multiple threads, and the multiple threads are only fixedly connected to the sewing needle at the tail end of the sewing needle.

Further, the main wire portion includes a plurality of wires, the plurality of wires are bonded to each other, and the two wires can be pulled each other under tension at any position.

Further, the suture includes a main thread portion, the main thread portion is a single thread, and one or more branch threads with loops, the loops are sleeved on the main thread portion, and the loops can move on the main thread.

Further, the suture includes a sleeve thread and an inner thread, the sleeve thread is tubular, and the tubular wall is provided with through holes arranged at uniform intervals in the axial direction;

The inner thread is located in the sleeve thread, and one end near the tail end of the sewing needle is fixedly connected with the sleeve thread, and there are one or more inner threads;

The diameter of the through hole is larger than the diameter of the inner wire, and is 1.2-1.5 times the diameter of the inner wire.

Further, the sewing needle has a connecting section, the connecting section includes an upper flange and a lower flange, the upper flange is a frustum shape, the diameter of one side adjacent to the tip of the sewing needle is the same as the diameter of the connecting section, and the one side away from the tip of the sewing needle is the same as the diameter of the connecting section. The diameter of the side is greater than the diameter of the connecting section, and less than or equal to the maximum diameter of the needle except the connecting section;

The lower flange has the same structure as the upper flange and is symmetrically arranged, and the lower flange is opposite to the large diameter side of the upper flange,

The gap between the upper flange and the lower flange is 1.5-3mm;

The suture comprises a heat-shrinkable tube and a connector, and the inner diameter of the heat-shrinkable tube is larger than the maximum diameter of the upper flange when the heat-shrinkable tube is not heated and shrunk, and the diameter is not larger than the diameter of the connecting section in a heat-shrinkable state of 50-90 degrees;

The connector is used to connect the heat shrinkable tube to the suture.

The beneficial effects of the present invention are:

1. By attaching multiple separable threads at the end of the needle, when suturing irregular wounds and bone fragments, add one or more threads for knotting with the remaining threads of other sutures, which can be freely Adjust the tension of each line, so that the wound is more tidy, the force is more stable, and the postoperative healing effect is better.

2. By setting multiple threads, the threads can be passed through the same suture hole at the same time, the tensile strength of the single-point suture can be improved, and the force can be more stable for the sutured bone fragments. It can bear more force and make the suture fixation more stable. Avoid stretching, loosening or even breaking the wire due to excessive force, resulting in deformed or even non-union of the bone after healing.

3. By setting two or more branches and two lines, the lines can be passed through the same suture hole at the same time, avoiding multiple passing operations, and solving the problem that multiple passes are required but the actual operation is difficult.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic diagram of the suture structure.

FIG. 3 is a schematic diagram of the risk structure of the second embodiment.

FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 3 .

FIG. 5 is a schematic structural diagram of the third embodiment.

FIG. 6 is a schematic structural diagram of the fourth embodiment.

Figure 7 is a schematic diagram of the structure of the sleeve.

FIG. 8 is a schematic diagram of the structure of the connecting section.

Figure 9 is a schematic diagram of the structure of the wire sleeve.

Figure 10 Schematic diagram of cross wound suture.

Figure 11 Schematic diagram of the suturing operation.

FIG. 12 is a plan view of FIG. 11 .

In the figure, the needle 10, the connecting section 11, the upper flange 111, the lower flange 112, the suture 20, the main thread part 21, the first branch line 221, the second branch line 222, the branch line 23, the collar 231, the sleeve Line 24, inner line 25, heat shrink tube 201, connector 202.

Detailed ways

The invention will be described in detail below with reference to the accompanying drawings.

As shown in Figures 1-9, a suture needle with thread includes a needle 10 and a suture 20. The suture 10 is fixedly connected to the tail end of the needle 20, and the suture 20 can form two branches or two at any position. branch above. There are multiple cases for the two branches, as detailed below. The suture can be silk thread, polymer material, metal material, etc. And when the suture contains two or more branches, the total cross-section of the branches does not exceed the cross-sectional area of the needle.

As shown in FIG. 2 , the suture 20 includes a main thread portion 21 , which is fixedly connected to the tail end of the sewing needle 10 ; the main thread portion 21 can form two branches at any position. Here the main line part is an integral line. The formation of two branches may be separated into two lines from the inside of the main line part, or an additional line may be added to form two branches with the main line part 21 . The case of two wires can also be applied to the case of multiple wires.

A special case is that the main thread portion 21 includes two threads, and the two threads are only fixedly connected to the sewing needle at the tail end of the sewing needle. That is to say, the two threads are separated from the end of the needle 10 . The case of two wires can also be applied to the case of multiple wires.

As shown in FIGS. 3 and 4 , the main wire portion 21 includes two wires, the two wires are bonded to each other, and the two wires can be pulled each other under tension at any position. Bonded together can be two wires with a circular cross section, a wire with a rectangular or linear cross section, or a wire with a semicircular cross section. As the adhesive, a medical adhesive was used. The case of two wires can also be applied to the case of multiple wires. If the main wire portion 21 includes a plurality of wires, they are bonded using an adhesive.

As shown in FIG. 5 , the suture 20 includes a main thread portion 21, the main thread portion 21 is a single thread, and also includes a branch thread 23 with a collar 231, the collar 231 is sleeved on the main thread portion, and the collar 231 can move on the main line. The collar 231 has various forms, preferably the inner diameter of the collar is slightly larger than the outer diameter of the main line part 21, so as not to hinder the operation of the main line part 21. The loop 231 can be a loop formed by knotting the branch wire 23, or a wire loop made of a separate wire, and certainly can be a loop made of other medical absorbable materials. The case of two wires can also be applied to the case of multiple wires. When there are multiple wires, multiple branch wires 23 with collars 231 can be matched.

As shown in Figures 6 and 7, the suture 20 includes a sleeve wire 24 and an inner wire 25, the sleeve wire 24 is tubular, and the tube wall is provided with through holes arranged at uniform intervals in the axial direction;

The inner thread 25 is located in the sleeve thread, and one end adjacent to the tail end of the sewing needle 10 is fixedly connected with the sleeve thread;

The diameter of the through hole is larger than the diameter of the inner wire, and is 1.2-1.5 times the diameter of the inner wire. The sleeve wire 24 can be a tube made of medical absorbable organic material and non-absorbable material, and the material of the inner wire and the sleeve wire 24 is preferably the same. The interval between the through holes can be 1-2 mm. The purpose of providing the through holes is to facilitate the pulling out of the inner wire 25 from the sleeve wire 24, and the interval is small to facilitate positioning at any point. The case of two wires can also be applied to the case of multiple wires. When there are multiple wires, the inner wires 25 may have multiple wires.

As shown in Figures 8 and 9, the needle 10 is provided with a connecting section 11. The connecting section includes an upper flange 111 and a lower flange 112. The upper flange 111 is in the shape of a truncated cone, and the diameter of one side adjacent to the tip of the needle 10 is equal to The diameter of the connecting section 11 is the same, and the diameter of the side away from the tip of the needle 10 is larger than the diameter of the connecting section 11, and is less than or equal to the maximum diameter of the needle 10 except the connecting section 11; On the basis of the isosceles trapezoid, there are symmetrical outwardly protruding arcs at the two waists.

The lower flange 112 has the same structure as the upper flange 111 and is symmetrically arranged, and the lower flange 112 is opposite to the large diameter side of the upper flange 111;

The reason why the upper and lower flanges are provided is to better combine the heat shrinkable tube 201 with the connecting section and prevent the heat shrinkable tube from separating from the connecting section 11. If there is only an upper flange or only a lower flange, the needle is inserted into the wound. They are stable enough, especially the lower flange, which is easy to scratch the wound (similar to barbs). Therefore, symmetrical upper and lower flanges with small intervals are provided, and the heat shrinkable tube can protrude into the gap in the gap, thereby improving the connection between the heat shrinkable tube and the gap. The strength of the connection between segments 11.

The gap between the upper flange 111 and the lower flange 112 is 1.5-3mm;

The suture 20 includes a heat-shrinkable tube 201 and a connecting head 202. The inner diameter of the heat-shrinkable tube 201 is larger than the maximum diameter of the upper flange 111 when the heat-shrinkable tube 201 is not heated and shrunk, and the diameter is not larger than the diameter of the connecting section 11 in the heat-shrinkable state of 50-90 degrees;

The connector 202 is used for connecting the heat shrinkable tube 201 to the suture.

When using, if the wound needs to be strengthened and closed, the non-drop suture can be divided into two pieces, and the suture is sutured as a whole. more stable.

When the irregular wound needs to be sutured, near the center of the irregular wound, one branch of the suture 20 is knotted with the main thread part 21, and the remaining branch is knotted with the remaining branches of the other sutures 20. During the knotting process, the tension of each branch can be adjusted so that the wound can be aligned stably, as shown in Figure 10. This is especially effective when multiple bone fragments are sutured. For the operator, the difficulty of the operation is greatly reduced, the success rate of the operation is increased, and the postoperative healing effect is improved.

For the fracture suture operation, as shown in Figure 12 and Figure 11, two holes are respectively made on the two pieces of bone to be sutured, and the four holes are punched clockwise or counterclockwise using a double-thread suture needle and then pulled and. This replaces two single-thread threads with one double-thread threading.

Once the needle is pierced, there will be no second piercing. The small volume of the hole results in a large piercing resistance, inconvenient piercing and the displacement of the bone fragments after the first pull and after the increase of the piercing force. The line is stretched, etc. In addition, the bearing capacity of the two wires is larger, which is more conducive to the use of a larger pulling force in a single pull and facilitates the alignment of the interface and the later healing. Finally, the two thread ends can be knotted in different positions, such as diagonally, for better stability after stitching.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Various modifications and changes may be made to the present invention for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (7)

1. The utility model provides a take line sewing needle, includes seam needle and suture, suture and the tail end fixed connection of seam needle, its characterized in that, suture optional position can form and be no less than two branches.

2. A suture needle with thread comprises a suture needle and a suture, wherein the suture is fixedly connected with the tail end of the suture needle; the main line portion can be formed with a plurality of branches at arbitrary positions.

3. The threaded needle of claim 1 or 2 wherein said main portion comprises a plurality of threads fixedly attached to the needle only at the trailing end of the needle.

4. The suture needle with thread of claim 1, wherein the main thread part comprises a plurality of threads, the plurality of threads are bonded to each other, and the two threads can be pulled against each other under a pulling force at any position.

5. The suture needle of claim 1, wherein the suture comprises a main portion that is a single thread and one or more branch threads with a collar that fits over the main portion and is movable over the main portion.

6. The suture needle with thread of claim 1, wherein the suture comprises a sleeve thread and an inner thread, the sleeve thread is tubular, and the wall of the sleeve thread is provided with through holes which are axially and uniformly spaced;

the inner thread is positioned in the loop thread, one end of the inner thread close to the tail end of the sewing needle is fixedly connected with the loop thread, and one or more inner threads are arranged;

the aperture of the through hole is larger than the diameter of the inner line and is 1.2-1.5 times of the diameter of the inner line.

7. The suture needle with thread of any one of claims 1 to 6, wherein the needle has a connecting section comprising an upper flange and a lower flange, the upper flange has a frustum shape, the diameter of the side close to the tip of the needle is the same as the diameter of the connecting section, the diameter of the side far away from the tip of the needle is larger than the diameter of the connecting section and is less than or equal to the maximum diameter of the needle at the connecting section;

the lower flange structure is the same as and symmetrically arranged with the upper flange, the lower flange is opposite to the large diameter side of the upper flange,

the gap between the upper flange and the lower flange is 1.5-3 mm;

the suture comprises a heat shrinkable tube and a connector, wherein the inner diameter of the heat shrinkable tube is larger than the maximum diameter of the upper flange in an unheated and shrunk state, and the diameter of the heat shrinkable tube is not larger than the diameter of the connector in a 50-90-degree heat-shrunk state;

the connector is used for connecting the heat shrinkable tube and the suture.

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