CN115153700B - Disposable endoscope spiral continuous suture needle - Google Patents

Abstract

The invention discloses a disposable endoscope spiral continuous suture needle. Including base member, metal suture and sewing needle, metal suture wholly is the heliciform, and metal suture is including drawing in portion and sewing up the portion, and the diameter of drawing in the portion keeps unanimous, and the port of sewing up the portion is loudspeaker form outwards extension, draws in portion one end and sewing up the portion and be connected as an organic wholely, makes drawing in portion and sewing up the portion keep coherent, and the other end and the base member fixed connection of drawing in the portion, the base member are provided with the clamping part that can supply biopsy forceps to centre gripping, and sewing up needle is installed to the detachable department of the end of sewing up the portion. The invention uses the spiral continuous suture of the metal suture line and the ingenious pagoda-shaped contraction design, uses the horn-shaped suture part to meet the drawing of the large opening and is closed by the drawing part, thereby leading mucous membranes at two sides of the operation opening to gradually draw together from drawing together, and reducing the tension of the operation wound with high tension to draw together.

Description

A disposable endoscope spiral continuous suture needle

technical field

The invention relates to the technical field of endoscopic surgical tools, in particular to a disposable endoscopic spiral continuous suture needle.

Background technique

Endoscopy is a technology that uses a speculum that can be inserted into the human cavity and canal to perform inspection and treatment directly. To check the cavities connected with the outside world (such as digestive tract, respiratory tract, urinary tract, etc.), the endoscope can be inserted directly, which is called non-invasive endoscopy; cavities, etc.), the endoscope needs to be fed through an incision, which is called invasive endoscopy. At the same time as endoscopic examination, treatment can still be performed by using various accessories.

With the development of medical level, endoscopic surgery is increasing day by day. Among them, the surgical incision for gastrointestinal surgery has also developed from mucosal resection to 5-layer resection, and the size of the surgical incision has also developed from less than 1 cm to about 3 cm. However, under endoscopic surgery, the current titanium clip sealing technique is not conducive to full-thickness continuous suturing of this kind of surgical incision. When the surgical incision is larger than 2 cm, it is very difficult to suture, and even nylon ropes, nylon loops, etc. Auxiliary stitching. If it is impossible to suture under the endoscope, it is necessary to change to surgical laparotomy and suture, which will increase the economic burden and risk of the operation for the patient.

Contents of the invention

Aiming at the deficiencies in the above-mentioned prior art, the object of the present invention is to provide a disposable endoscopic helical continuous suture needle.

In order to achieve the above object, the present invention adopts the following technical solutions:

A disposable endoscope spiral continuous suture needle, comprising a base body, a metal suture thread and a suture needle, the metal suture thread is in a spiral shape as a whole, the metal suture thread includes a gathering part and a suture part, and the gathering part The diameter is kept consistent, the port of the stitching part extends outwards in the shape of a trumpet, one end of the gathering part is connected to the sewing part as a whole, so that the gathering part and the sewing part are kept continuous, and the other end of the gathering part is fixed to the base connected, the base body is provided with a clamping portion that can be clamped by biopsy forceps, and a suture needle is detachably installed at the end of the suture portion.

Preferably, the suture part is provided with a bordering part at the end for docking with a suture needle, the bordering part is provided with a docking port, and a clamping arm is provided at the port of the docking port, and the clamping arm is a memory Metal, the inner surface of the clamping arm is provided with a pin, the tail of the suture needle is provided with a pinhole and inserted into the docking port, the pin is inserted into the pinhole, after the junction is heated, its The clamping arm expands outwards to disengage the pin from the needle hole, thereby allowing removal of the suture needle.

Preferably, the shape of the inner cavity of the docking port corresponds to the shape of the tail of the suture needle.

Preferably, a limiting groove is provided in the longitudinal center of the tail of the suture needle, and a protruding bolt corresponding to the limiting groove is provided on the clamping arm to prevent the needle from swinging left and right when piercing, and to strengthen the overall movement of the needle and the helix consistency.

Preferably, the suture needle is curved, and the bending angle of the metal suture needle matches the helix angle of the suture thread.

Preferably, the bordering part, the clamping arm and the metal suture are integrally formed and made of memory metal material.

Preferably, an avoidance groove is formed in a longitudinal central depression of the base body located at the clamping portion.

Due to the adoption of the above scheme, the present invention utilizes the spiral continuous suture of the metal suture thread, and the ingenious pagoda-shaped contraction design uses the trumpet-shaped suture part to meet the drawing of the large opening, and is closed by the gathering part, so that both sides of the operation opening can be closed. The mucous membrane is drawn together and then gradually moved closer to reduce the tension of the surgical wound. And, based on the principle of memory metal deformation by heat, the suture needle can be easily detached from the needle to achieve a detachable needle.

Description of drawings

Fig. 1 is a schematic diagram of the structure and principle of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a docking port according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of the suture in use according to the embodiment of the present invention.

Fig. 4 is a schematic diagram of a stitch removal operation according to an embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. connected, or integrally connected. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

As shown in Figures 1 to 4, a disposable endoscope spiral continuous suture needle provided in this embodiment includes a base 1, a metal suture 2 and a suture needle 3, and the metal suture 2 is in a spiral shape as a whole , the metal suture 2 includes a gathering part 21 and a sewing part 22, the diameter of the gathering part 21 is consistent, the port of the sewing part 22 extends outwards in a trumpet shape, and one end of the gathering part 21 is connected to the sewing part 22 connected as a whole, so that the gathering part 21 and the suturing part 22 are kept continuous, and the other end of the gathering part 21 is fixedly connected with the base body 1, and the base body 1 is provided with a clamping part 11 which can be clamped by biopsy forceps. A suture needle 3 is detachably installed at the end of the suture portion 22 .

This embodiment mainly uses the spiral continuous suture of the metal suture 2, and the ingenious pagoda-shaped contraction design uses the trumpet-shaped suture part 22 to meet the drawing of the large opening, and is closed by the gathering part 21, so that both sides of the surgical opening The mucous membrane 100 gradually draws closer to reduce the tension of the surgical wound with greater tension. In this way, some relatively large surgical openings can be targeted, and related endoscopic suturing can also be performed, avoiding surgical laparotomy.

During the specific operation, the clamping part 11 of the base body is clamped by the biopsy forceps, and the whole body is pushed to the operation port through the biopsy channel of the endoscope, so that the suture needle 3 protrudes out of the biopsy channel, and the needle head of the suture needle 3 touches the The mucosa 100 needs to be sutured. Subsequently, by manually rotating the biopsy forceps, after the biopsy forceps are rotated clockwise, a force is applied to the base body, so that the metal suture thread 2 fixedly connected with the base body 1 is also rotated accordingly, so in the process of rotation, the suture needle 3 will penetrate the mucosa 100, and as it continues to rotate, because the suture portion 22 is trumpet-shaped, the diameter at the port is larger than the overall diameter, so the suture needle 3 will be in the trumpet-shaped suture portion 22 Driven by the driving force, it penetrates into the mucosa 100 on the other side, and then passes out to meet the span suturing between the two mucosa 100 . The helical design will also make the suture needle 3 rotate, so as to repeatedly penetrate between the two mucous membranes 100 . After repeated rotations, the metal suture 2 will gradually penetrate into the mucous membrane 100 of the operation port, and according to the converging part 21 (the specific diameter of the converging part: it needs to meet the matching gastroenteroscope ≤ 3.4mm, supporting bronchoscope and fiber Nasopharyngoscope ≤ 1.2mm, laparoscopy, arthroscopy and hysteroscopy ≤ 4.5mm, according to the matching endoscopic biopsy channel or laparoscopic abdominal skin channel, the diameter of the sutured part 22 is 1-2mm larger than the gathered part, It can pass through the biopsy channel of the endoscope smoothly.) The diameter is reduced, and the mucosa 100 penetrating here will be gathered up, so as to achieve the effect of suturing the operation port. The length of the gathering portion 21 is determined according to the length of the surgical opening, and it needs to be satisfied that the length of the gathering portion 21 is greater than the length of the surgical opening. After the operation port is sewed up, the rotation is stopped, the biopsy forceps breaks away from the clamping, and then the sewing needle is removed. Make the metal suture 2 stay in the surgical opening, keep the surgical opening closed, and wait for the healing of the surgical opening, then remove the metal suture 2. And when it is necessary to remove the stitches, the endoscope enters the human body again and reaches the metal suture opening, clamps the clamping part 11 with biopsy forceps and rotates counterclockwise, and simultaneously pulls the base body 1 back to make the spiral The sutured part 22 of the sutured portion slowly withdraws from the healed operation port, and then completes the stitch removal step, as shown in FIG. 4 .

The removal of the suture needle 3 is based on the memory metal (using Shenzhen Xiangtai Memory New Material Co., Ltd. TINI02 medical memory metal, its performance is: when it is less than 30 ° C, it is a shape state, when it is > 50 ° C It is a shape state. When the suture is completed and the suture needle is to be removed, it is only necessary to clamp its top with hot biopsy forceps.) On the principle of thermal deformation, the medical alloy (high strength and no deformation) made The suture needle 3 can be easily disengaged from the needle, reaching a detachable needle.

The specific structure is as follows: that is, the suturing portion 22 is located at the end and is provided with a bordering portion 23 for docking with the suture needle 3, the bordering portion 23 is provided with a docking port 24, and a clamping arm is provided at the port of the docking port 24 25, the clamping arm 25 is memory metal, the inner surface of the clamping arm 25 is provided with a latch 26, the tail of the suture needle 3 is provided with a pinhole 31 and inserted into the docking port 24, the The pin 26 is inserted into the needle hole 31 , and after the junction portion 23 is heated, its clamping arm 25 expands outwards, so that the pin 26 is separated from the pin hole 31 , so that the suture needle 3 can be removed. Therefore, the installation structure is to use the docking port 24 to cover the tail of the suture needle 3 to achieve preliminary matching, and then after the clamping arm 25 is closed, the latch 26 is inserted into the pinhole 31 of the suture needle 3, thereby avoiding The extraction of suturing needle 3, just reaches locking like this. And when the suture needle 3 needs to be removed, it is necessary to clamp the junction part 23 by the thermal biopsy forceps, and the clamping arm 25 is heated and deformed by the heating of the thermal biopsy forceps, and the deformation direction is to expand outwards. After the arm is unfolded, the latch 26 will break away from the pinhole 31 of the suture needle 3, so that the suture needle 3 can be pulled away from the docking port 24 under the action of external force.

Further, the shape of the inner cavity of the docking port 24 in this embodiment corresponds to the shape of the tail of the suture needle 3, and the shape of the tail of the suture needle 3 is preferably a prism, which can avoid rotation. And the needle is Mitsubishi cone or cone, which is suitable for tissue surfaces with different hardness and flexibility.

Further, a limiting groove 32 is provided in the longitudinal center of the tail of the suture needle 3 in this embodiment, and the clamping arm 25 is provided with a protruding bolt 27 corresponding to the limiting groove 32 . When the limit groove 32 and the protruding bolt 27 are close together, they can completely overlap, and its function is to prevent the puncture needle from swinging, and strengthen the integrated strength of the suture needle 3 and the suture part 22 .

Further, for the shape of the sewing needle 3 of this embodiment, it is designed to be curved, and the bending angle of the sewing needle 3 and the helical angle of the metal suture thread 2 are adapted to each other, so that when the thread is rotated, Can be kept smoother.

Further, in this embodiment, the bordering portion 23 , the clamping arm 25 and the metal suture 2 are all integrally formed and made of memory metal material. In this way, one-piece molding can be satisfied, which is convenient for factory processing.

Further, in order to facilitate the clamping of biopsy forceps, the base body 1 of this embodiment is located in the longitudinal central depression of the clamping part 11 to form an avoidance groove 12, and the design of the avoidance groove 12 can make the clamping part 11 more protruding , for easy selection and clamping.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (6)

1. A disposable endoscope spiral continuous suture needle, which is characterized in that: the surgical biopsy forceps comprise a base body, a metal suture and a suture needle, wherein the metal suture is in a spiral shape as a whole, the metal suture comprises a furling part and a suture part, the diameter of the furling part is kept consistent, a port of the suture part is in a horn shape and extends outwards, one end of the furling part is connected with the suture part into a whole, the furling part is kept consistent with the suture part, the other end of the furling part is fixedly connected with the base body, the base body is provided with a clamping part for clamping by a biopsy forceps, and the suture needle is detachably arranged at the end head of the suture part;

in the concrete operation, the clamping part of the matrix is clamped by the biopsy forceps, the whole body is pushed to the operation opening through the biopsy channel of the endoscope, the suture needle protrudes out of the biopsy channel, the needle head of the suture needle contacts the mucous membrane to be sutured, then, the biopsy forceps is rotated manually, force is applied to the matrix after the biopsy forceps are rotated clockwise, the metal suture fixedly connected with the matrix is rotated along with the matrix, so that the suture needle penetrates into the mucous membrane in the rotating process, and continuously rotates along with the rotation, wherein the suture needle penetrates into the mucous membrane at the other side under the drive of the horn-shaped suture part because the diameter of the suture part at the port is larger than that of the whole body, then the suture needle penetrates out to meet the span suture between the two mucous membranes, and the spiral design also enables the suture needle to rotate, the suture needle is detached, the metal suture thread is retained at the operation port, the operation port is kept in the collection, the metal suture thread is detached after the operation port is healed, the endoscope enters the human body again when the suture is needed, the metal suture port is reached, the clamping part is clamped by the biopsy forceps and rotates anticlockwise, the substrate is pulled backwards, the spiral suture part slowly exits the healed operation port, and then the suture removing step is completed;

the sewing machine is characterized in that a junction part for being in butt joint with a sewing needle is arranged at the end of the sewing machine, a butt joint port is formed in the junction part, a clamping arm is arranged at the port of the butt joint port, the clamping arm is made of memory metal, a bolt is arranged on the inner side face of the clamping arm, a needle hole is formed in the tail of the sewing needle and is inserted into the butt joint port, the bolt is inserted into the needle hole, and after the junction part is heated, the clamping arm is unfolded outwards, so that the bolt is separated from the needle hole, and the sewing needle is removed.

2. A disposable endoscopic spiral continuous suture needle according to claim 1, wherein: the shape of the inner cavity of the butt joint port corresponds to the shape of the tail part of the suture needle.

3. A disposable endoscopic spiral continuous suture needle according to claim 1, wherein: the longitudinal center of the tail part of the suture needle is provided with a limit groove, and the clamping arm is provided with a convex bolt corresponding to the limit groove so as to prevent the needle head from swinging left and right during puncture and strengthen the integral movement consistency of the needle head and the spiral part.

4. A disposable endoscopic spiral continuous suture needle according to claim 2, wherein: the suture needle is in a curved shape, and the bending angle of the metal suture needle is mutually matched with the spiral angle of the suture thread.

5. A disposable, endoscopic, spiral continuous suturing needle according to claim 3, wherein: the bordering part, the clamping arms and the metal suture lines are all integrally formed and made of memory metal materials.

6. A disposable endoscopic spiral continuous suture needle according to claim 1, wherein: the substrate is arranged at the longitudinal center of the clamping part and is concavely provided with an avoidance groove.