CN118078456B

CN118078456B - Auxiliary fixing instrument and auxiliary fixing method

Info

Publication number: CN118078456B
Application number: CN202410488494.6A
Authority: CN
Inventors: 张英; 周圣涛
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2024-04-23
Filing date: 2024-04-23
Publication date: 2024-07-12
Anticipated expiration: 2044-04-23
Also published as: CN118078456A

Abstract

The invention belongs to the technical field of medical instruments, and in particular relates to an auxiliary fixing instrument and an auxiliary fixing method, which are mainly applied to an operation requiring self-made suture with a needle, and mainly comprise the following steps: the placement part comprises a first placement area and a first placement groove; a limiting part comprising a first limiting structure and a third limiting structure; the first limiting structure is matched with the first placement area and limits the posture of the suture needle; the third limiting structure is matched with the first placing groove and limits the posture of the suture line; the puncture part comprises an auxiliary needle, an auxiliary wire and a pushing assembly; the first limiting structure fixes the suture needle in the first placement area; a third limiting structure fixes the suture thread in the first placing groove; the pushing component pushes the auxiliary needle to drive the auxiliary wire to move along the working path, and when the auxiliary needle completely passes through the suture, the auxiliary wire also passes through the suture; it has the following components: the effect of shrinking the coarser suture knot to facilitate penetration through the dense ligament while reducing the risk of damaging the vessel.

Description

Auxiliary fixing instrument and auxiliary fixing method

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to an auxiliary fixing instrument and an auxiliary fixing method.

Background

Pelvic Organ Prolapse (POP) is a type of organ position and dysfunction caused by pelvic floor support tissue weakness, which is caused by various reasons. The vulvar mass is taken as the main symptom, and urination and abnormal defecation, vulvar bleeding, inflammation and the like are accompanied or not, so that the life quality of patients is affected to different degrees. The patients with mild symptoms generally have no discomfort, the patients with severe symptoms can voluntarily have vaginal mass to deviate from, have lumbosacral part ache or falling sense with different degrees, have obvious symptoms after standing for a long time or tiredness, and can be accompanied with difficult urination after bedridden rest. The exposed cervical or vaginal wall rubs with clothes for a long time, which can cause ulcer, bleeding and the like of local cervical or vaginal wall, and purulent secretion after secondary infection. Uterine prolapse rarely affects menstruation and even does not affect conception, pregnancy and delivery. The person with the bulging vaginal front wall may have urination disorders such as feeling of urinary insufficiency, urinary retention, urinary incontinence, etc., and sometimes the person lifts the vaginal front wall upward to urinate. The swelling of the vaginal back wall may be accompanied by difficult defecation, and sometimes the swelled vaginal back wall may be pushed with a finger to discharge feces.

Pelvic organ prolapse is often the simultaneous existence of multiple sites, such as uterine prolapse is often accompanied by vaginal anterior and posterior wall distension, thickening and keratinization of vaginal mucosa, cervical hypertrophy and extension. The anterior vaginal wall is spherically distended, the distended bladder is soft, and the folds of vaginal mucosa disappear. When the back wall of the vagina is distended, the old perineum lacerations are often accompanied, and the rectum protruding into the vagina can be touched during anus diagnosis.

Pelvic organ prolapse suspension ligament surgery is a safe and effective surgical mode for treating pelvic organ prolapse. Depending on the patient's condition, the patient's viscera are suspended from different ligaments (e.g., ilio-pubic ligament, sacral ligament, sacrospinous ligament) using thicker non-absorbable sutures. The suspension method is divided into a suspension method by using a mesh and a suspension method by using an autologous tissue, wherein the mesh has the defect of erosion and exposure, and the mesh is forbidden to be used for pelvic organ prolapse suspension in some countries. However, the autologous tissue is suspended on the ligament, and a needle with a thick non-absorbable thread which can be directly used does not exist, before an operation, the thick non-absorbable thread needs to be reversely folded and knotted after passing through a suture needle hole of a ligament at a suture part to fix the suture on the suture needle, but the suture is thicker, so that the knot is larger. While the ligament is dense, larger knots are difficult to pass through, and large blood vessels are arranged around the ligament, and the larger knots have the risk of damaging the blood vessels and bleeding.

The present invention is directed to the above-mentioned problems, and provides an auxiliary fixing apparatus and an auxiliary fixing method.

Disclosure of Invention

In order to overcome the problems in the prior art, the invention provides an auxiliary fixing device and an auxiliary fixing method.

An auxiliary fixation apparatus, comprising:

a placement part including a first placement area for placing a suture needle and a first placement groove for placing a suture thread;

A limiting part comprising a first limiting structure and a third limiting structure; the first limiting structure is matched with the first placing area; the third limiting structure is matched with the first placing groove;

The puncture part comprises an auxiliary needle, an auxiliary wire and a pushing assembly; the auxiliary needle is detachably connected with the auxiliary wire; the pushing component is in sliding connection with the placement part; the pushing component pushes the auxiliary needle to move along the working path; the axis of the auxiliary needle coincides with the working path; the working path intersects the first placement groove;

the first limiting structure is used for fixing the suture needle in the first placement area; the third limiting structure is used for fixing the suture line in the first placing groove; the pushing component pushes the auxiliary needle to drive the auxiliary wire to move along the working path, and when the auxiliary needle completely passes through the suture, the auxiliary wire also passes through the suture.

Further, a puncture track is arranged in the placement part; the puncture track coincides with the working path; the puncture track is close to the tail of the suture needle.

Further, a cutting part is arranged on the placing part; one end of the cutting part passes through the placing part and then contacts and cuts one end of the suture line.

Further, a cutting groove is formed in the placement part; the cutting groove is coincided with the first placing groove; the cutting groove is matched with the cutting part.

Further, the cutting part comprises a cutting key and a cutter; one end of the cutter is matched with the cutting groove, and the other end of the cutter is fixedly connected with the cutting key; one end of the cutter, which is far away from the cutting key, is a cutting end.

Further, the restriction portion further includes a second restriction structure; the second limiting structure is disposed between the first limiting structure and the third limiting structure.

Further, an avoidance groove matched with the cutter is formed in the side wall of the second limiting structure.

Further, an extrusion structure matched with the first placing groove is arranged on the side wall of the third limiting structure.

An auxiliary fixing method, comprising:

step one, the first limiting structure fixes the suture needle in a first placement area; the third limiting structure is used for fixing the suture line in the first placing groove;

and secondly, the pushing component pushes the auxiliary needle to drive the auxiliary wire to move along the working path, and the auxiliary needle passes through the suture line.

A suture needle comprises a needle tip and a needle tail. The blunt end of the needle point is fixedly connected with the needle tail. The maximum outer diameter of the needle tip is the same as the outer diameter of the needle tail. The inside of the needle tail is provided with a V-shaped groove.

Specifically, the thick end of the V-shaped groove faces the direction of the needle point, and the thin end of the V-shaped groove faces the direction away from the needle point.

The invention has the beneficial effects that: the auxiliary needle is driven to drive the thinner auxiliary wire to pass through the thicker suture, then the suture is fixed on the suture needle by using the auxiliary wire, and finally the aim of reducing knots is achieved, so that the suture passes through compact ligaments conveniently, and the risk of damaging blood vessels is reduced. The scheme of the invention can effectively reduce the knot volume, and can be used for pelvic organ prolapse suspension ligament operation and other operation self-made suture with needle.

Drawings

FIG. 1 is a schematic view of an auxiliary lancing apparatus embodying the present invention;

FIG. 2 is a front view of an auxiliary lancing apparatus embodying the present invention;

FIG. 3 is a rear view of an auxiliary lancing apparatus embodying the present invention;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is a schematic view of an auxiliary lancing apparatus embodying the present invention after being opened;

FIG. 6 is a front view of an auxiliary lancing apparatus embodying the present invention after it has been opened;

FIG. 7 is an enlarged view of a portion of FIG. 6;

FIG. 8 is a schematic diagram of the structure after puncturing in accordance with the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8;

FIG. 10 is a schematic illustration of a finished penetration product embodying the present invention;

FIG. 11 is a schematic view of an assembly of an auxiliary needle and an auxiliary wire embodying the present invention;

FIG. 12 is a schematic view of a construction of a suturing needle embodying the present invention;

FIG. 13 is a schematic view of the structure of a suture needle tail embodying the present invention;

In the figure, 1, a placement part; 2. a restriction portion; 3. a puncture part; 4. a suture needle; 5. a suture; 6. a cutting part; 11. a first placement area; 12. a first placement groove; 13. a second placement area; 14. a third placement area; 15. puncturing the track; 16. cutting a groove; 17. a mounting groove; 21. a first limiting structure; 22. a second limiting structure; 23. a third limiting structure; 31. an auxiliary needle; 32. an auxiliary line; 33. a push rod; 34. pushing the key; 41. a needle tip; 42. a needle tail; 61. cutting the key; 62. a reset structure; 63. a cutter; 221. an avoidance groove; 231. an extrusion structure; 421. v-shaped groove.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The invention may be embodied or practiced in other different specific embodiments and features from the following examples and examples may be combined with one another without departing from the spirit or scope of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Example 1

An auxiliary fixation apparatus as shown in fig. 1-11, comprising:

a placement section 1 including a first placement area 11 for placing the suture needle 4 and a first placement groove 12 for placing the suture thread 5;

a restriction portion 2 including a first restriction structure 21 and a third restriction structure 23; the first limiting structure 21 is matched with the first placement area 11 to limit the posture of the suture needle 4; the third limiting structure 23 is matched with the first placing groove 12 to limit the posture of the suture thread 5;

A puncture part 3 including an auxiliary needle 31, an auxiliary wire 32 and a pushing assembly; the auxiliary needle 31 is detachably connected with the auxiliary wire 32; the pushing component is in sliding connection with the placement part 1; the pushing assembly pushes the auxiliary needle 31 to move along the working path; the axis of the auxiliary needle 31 coincides with the working path; the working path intersects the first placement groove 12; the working path is clung to the tail of the suture needle 4;

the first limiting structure 21 fixes the suture needle 4 in the first placement area 11; the third limiting structure 23 fixes the suture 5 in the first placement groove 12; the pushing assembly pushes the auxiliary needle 31 to move the auxiliary wire 32 along the working path, and when the auxiliary needle 31 completely passes through the suture 5, the auxiliary wire 32 also passes through the suture 5.

Specifically, a groove adapted to the needle tail 42 of the suture needle is provided in the first placement area 11. In use, the needle tail 42 is placed in the recess to define the pose of the needle 4. Defining the pose of the needle 4 has the following advantages:

1. preventing the suture needle 4 from crossing the working path, so that the auxiliary needle 31 cannot pass through the suture thread 5, and the suture thread 5 cannot be fixed on the suture needle 4;

2. Bringing the working path of the auxiliary needle 31 into close contact with the needle tail 42 of the suture needle to further limit the positional relationship between the suture thread 5 and the suture needle 4; if the distance between the working path of the auxiliary needle 31 and the needle tail 42 of the suture needle is larger, the auxiliary thread 32 will make the suture thread 5 form a larger loop, and the suture needle 4 will shake inside the loop, resulting in lack of tight connection between the suture thread 5 and the suture needle 4, which promotes the suture difficulty and increases the risk of damaging healthy tissue. It is known that the blood vessels around the ligaments, especially the pelvic ligaments, bear the task of supplying blood to the lower limbs, and the blood vessels are relatively thick, so that the blood vessels can be damaged by a little carelessness to cause massive hemorrhage, thereby endangering the life of patients.

As shown in fig. 12-13, the suture needle 4 includes a needle tip 41 and a needle tail 42. The blunt end of the needle tip 41 is fixedly connected with the needle tail 42. The maximum outer diameter of the needle tip 41 is the same as the outer diameter of the needle tail 42. The inside of the needle tail 42 is provided with a V-shaped groove 421. When the suture 5 is threaded, the suture 5 is inserted from the thick end of the V-shaped groove 421, and then the suture 5 is pulled toward the thin end of the V-shaped groove 421, so that the suture 5 is inserted into the thin end of the V-shaped groove 421. At this time, the suture thread 5 is pressed and deformed by the thin end of the V-shaped groove 421, and is caught inside the thin end of the V-shaped groove 421. Preliminary fixing of the suture 5 on the needle 4 is achieved.

Specifically, the thick end of the V-shaped groove 421 faces the direction of the needle tip 41, and the thin end of the V-shaped groove 421 faces the direction away from the needle tip 41. During suturing, the ligament applies a frictional force to suture 5 in a direction away from needle point 41, pulling suture 5 firmly inside the thin end of V-groove 421.

Further, a receiving groove is formed in the direction that the thin end of the V-shaped groove 421 is far away from the needle tip 41, and when in use, the suture thread 5 is placed in the receiving groove, so that the maximum outer diameters of the suture thread 5 and the suture needle 4 are further reduced, and the suture thread 5 and the suture needle 4 can conveniently penetrate through tissues such as compact ligaments.

Specifically, the needle tip 41 is an arc needle.

As shown in fig. 7, a puncture track 15 is provided inside the placement section 1; the puncture track 15 coincides with the working path; the puncture track 15 is close to the tail of the suture needle 4, so that the working path of the auxiliary needle 31 is tightly attached to the needle tail 42 of the suture needle, the position relationship between the suture thread 5 and the suture needle 4 is effectively limited, and the shaking between the suture thread 5 and the suture needle 4 is prevented.

Specifically, the placement section 1 is internally provided with a placement groove 17 for facilitating placement of the auxiliary needle 31 with the auxiliary wire 32 inside the puncture track 15.

As shown in fig. 11, an opening is provided in the side wall of the auxiliary needle 31, and when in use, the auxiliary wire 32 slides on the side wall of the auxiliary needle 31, so that the auxiliary wire 32 can be threaded into the auxiliary needle 31, the time required for threading the auxiliary wire 32 into the auxiliary needle 31 is shortened, and the working efficiency is improved.

As shown in fig. 1 to 9, one end of the first restriction structure 21 is rotatably connected to the placement portion 1, and the other end is detachably connected to the placement portion 1. After the suture needle 4 is placed in the first placement area 11, the posture of the suture needle 4 is adjusted, then the suture needle 4 is pressed inside the first placement area 11 by rotating the first restriction structure 21, and the position of the suture needle 4 is defined by applying friction force.

Specifically, the first restriction structure 21 is a plate-like structure. One end of the first limiting structure 21 is provided with a hinge, and the other end is provided with a first buckle. The side wall of the placement part 1 is provided with a first clamping groove matched with the first buckle. In use, the first limiting structure 21 is rotated and the first buckle is connected with the first clamping groove, so that the suture needle 4 is limited in the first placing area 11.

In some embodiments of the present application, the first limiting structure 21 is a clamp-shaped clamping structure, and after the suture needle 4 is placed in the first placement area 11 and the posture is adjusted, the position and posture of the suture needle 4 can be fixed by using the first limiting structure 21.

Although only two schemes for limiting the suture needle 4 are shown in the present embodiment, other schemes for fixing the suture needle 4 at a certain position can be derived by those skilled in the art based on the present embodiment without departing from the spirit and scope of the present invention.

As shown in fig. 1 to 9, one end of the third restriction structure 23 is rotatably connected to the placement unit 1, and the other end is detachably connected to the placement unit 1. After the suture thread 5 is placed in the first placement groove 12, the posture of the suture thread 5 is adjusted to be in a tight state, then the third limiting structure 23 is rotated to press the suture thread 5 inside the first placement groove 12, and friction force is applied to limit the position of the suture thread 5.

Specifically, the third restriction structure 23 is a plate-like structure. One end of the third limiting structure 23 is provided with a hinge, and the other end is provided with a third buckle. A third clamping groove matched with the third buckle is formed in the side wall of the placement part 1. In use, the third limiting structure 23 is rotated and the third buckle is connected with the third clamping groove, so that the suture needle 4 is limited in the third placement area 14.

Further, a pressing structure 231 adapted to the first placing groove 12 is provided on a sidewall of the third limiting structure 23. When the third clip is connected with the third clip groove, the pressing structure 231 is inserted into the first placing groove 12, presses the suture 5, and defines the position of the suture 5 by applying friction.

In some embodiments of the present application, the third limiting structure 23 is a spool with a locking structure, the suture 5 is placed inside the spool, and the spool is pulled to place the suture 5 in tension, and then the locking structure is applied to prevent the spool from reversing. Specifically, the spool is provided on the back surface of the placement portion 1.

Although only two schemes for restricting the suture 5 are shown in this embodiment, other schemes for fixing the suture 5 at a certain place and in a tight state can be derived by those skilled in the art based on this embodiment without departing from the spirit and scope of the present invention.

Further, the restriction portion 2 further includes a second restriction structure 22; the second limiting structure 22 is disposed between the first limiting structure 21 and the third limiting structure 23. One end of the second limiting structure 22 is rotatably connected with the placement portion 1, and the other end is detachably connected with the placement portion 1. The second limiting structure 22 seals the placement groove 17 and the puncture track 15, preventing the auxiliary needle 31 from accidentally slipping off.

Specifically, the second restriction structure 22 is a plate-like structure. One end of the second limiting structure 22 is provided with a hinge, and the other end is provided with a second buckle. The side wall of the placement part 1 is provided with a second clamping groove matched with the second buckle.

As shown in fig. 1-9, the push assembly includes a push rod 33 and a push key 34; the push rod 33 is fixedly connected with the push key 34. The push rod 33 has a cylindrical structure, and the outer diameter of the push rod 33 is smaller than or equal to the maximum outer diameter of the sub-needle 31. The plunger 33 is adapted to the puncture track 15. The push key 34 is slidably connected to the placement portion 1, and a side of the push key 34 away from the push rod 33 protrudes through the placement portion 1 away from the suture needle 4.

Specifically, a slide rail adapted to the push key 34 is provided inside the placement portion 1. The slide rail coincides with the storage rail.

Preferably, the second placement area 13 is provided inside the placement part 1, and a magnet is provided inside the second placement area 13. The auxiliary needle 31 is made of paramagnetic metal material such as titanium and iron. The second placement area 13 is arranged at the end of the puncture track 15 remote from the pushing assembly. After pushing the auxiliary needle 31 to drive the auxiliary wire 32 to pass through the suture 5, the auxiliary needle 31 enters the second placement area 13 along the puncture track 15, and the auxiliary needle 31 is attracted by the magnet to prevent the auxiliary needle 31 from falling off from the inside of the second placement area 13.

Further, a plurality of auxiliary needles 31 are stored in the second placement area 13 for easy use.

In some embodiments of the present application, the puncture track 15 is made of a magnetic material, such as: and (3) a magnet. The subsidiary needle 31 made of paramagnetic metal material moves inside the magnetic attraction download puncture track 15, preventing the subsidiary needle 31 from slipping off.

In some embodiments of the application, a third placement area 14 is provided inside the placement section 1, the third placement area 14 being used for storing spare auxiliary wires 32.

The working principle of the embodiment is as follows:

1. The suture needle 4 with the suture thread 5 is put into the first placement area 11, so that the needle tail 42 of the suture needle 4 is ensured to be positioned in the groove;

2. Securing the needle 4 inside the first placement area 11 using a first restriction 21;

3. Stretching the suture 5 so that the suture 5 is positioned inside the first placing groove 12 and is in a tight state;

4. Securing the suture 5 within the first placement slot 12 using a third limiting structure 23;

5. placing the auxiliary needle 31 with the auxiliary wire 32 into the puncture track 15, keeping the auxiliary needle 31 between the suture 5 and the push rod 33, and making the needle tip 41 of the auxiliary needle 31 face the suture 5;

6. the pushing assembly drives the auxiliary needle 31 with the auxiliary wire 32 to move along the puncture track 15, and the auxiliary needle 31 passes through the suture 5 during the movement until the auxiliary needle 31 enters the second placement area 13;

7. The restriction part 2 is opened, the finished product is taken out, the auxiliary thread 32 is used for making knots, and the connection relation between the suture thread 5 and the suture needle 4 is locked.

Example 2

As shown in fig. 1 to 10, this embodiment is different from embodiment 1 in that:

A cutting part 6 is arranged on the placing part 1; one end of the cutting part 6 passes through the placement part 1 to contact and cut one end of the suture 5. The purpose of the cutting part 6 is that after the suture thread 5 is inserted into the suture needle 4, a strand of suture thread 5 is respectively arranged at both sides of the suture needle 4, and two strands of suture thread 5 are pierced by the auxiliary needle 31, so that the two strands of suture thread 5 form a coil penetrating inside the V-shaped groove 421. The cutting portion 6 then cuts one of the strands 5 to obtain the finished product shown in fig. 10.

As shown in fig. 6 to 9, the interior of the placement portion 1 is provided with a cutting groove 16; the cutting slot 16 coincides with the first placement slot 12; the cutting groove 16 is adapted to the cutting portion 6. When the auxiliary needle 31 is pierced, one end of the cutting part 6 is extended out through the cutting groove 16 and contacts the suture 5, and the cutting part 6 continues to move until the suture 5 is cut off.

Specifically, as shown in fig. 3 to 9, the cutting part 6 includes a cutting key 61 and a cutter 63; one end of the cutter 63 is matched with the cutting groove 16, and the other end is fixedly connected with the cutting key 61; the end of the cutter 63 remote from the cutting key 61 is a cutting end.

Specifically, as shown in fig. 6, the cutting end is a bevel, and its tip is located between two sutures 5, and pushes the cutting key 61 in the direction of the sutures 5 to drive the cutter 63 to move upward. When the cutting end contacts the suture 5 to be cut, the inclined cutting end drives the suture 5 to move toward the side away from the push button 34, and continuously cuts the suture 5 during the movement until the strand of suture 5 is completely cut.

Further, a side wall of the second limiting structure 22 is provided with a avoiding groove 221 adapted to the cutter 63. So that the cutter 63 can completely penetrate the suture thread 5, ensuring that the cutter 63 can completely cut the suture thread 5, and obtaining the finished product shown in fig. 10.

Specifically, the side of the placement portion 1 away from the restriction portion 2 is provided with a cutting deck. The cutting pod is adapted with a cutting key 61, the cutting key 61 moving inside the cutting pod. The cutting chamber is communicated with the cutting groove 16, and the cutter 63 moves inside the cutting groove 16. The end of the cutting chamber away from the restriction 2 is provided with an opening, the area of which is smaller than the cross-sectional area of the cutting chamber. One end of the cut key 61 is provided with an enlarged end. The area of the expansion end is the same as the cross section area of the cutting cabin, and the projection pattern of the expansion end and the cutting cabin on the placement part 1 is the same. The side of the cutting key 61 remote from the enlarged end protrudes from the opening. The cutting key 61 is prevented from being detached from the cutting compartment while facilitating the driving of the movement of the cutting key 61.

Further, a reset structure 62 is provided on the side of the enlarged end remote from the cutting key 61. One end of the reset structure 62 is connected with the enlarged end and the other end is connected with the interior of the cutting chamber. In a normal state, the reset structure 62 presses the expanding end on the inner wall of the side of the cutting compartment away from the limiting part 2, at this time, the cutting key 61 extends out through the opening, and the cutter 63 is positioned inside the cutting groove 16, in this state, not only the pressing of the cutting key 61 is facilitated, but also the cutter 63 is enabled to be far away from the suture 5, and accidental injury is prevented.

After the cutting key 61 is pressed, the reset structure 62 is compressed, the cutting key 61 penetrates into the cutting cabin, the cutter 63 extends out of the cutting groove 16 and cuts off the suture thread 5, the cutting key 61 is loosened, the reset structure 62 is restored to the original state, and the cutter 63 and the cutting key 61 are driven to move in the direction away from the limiting part 2, so that the state is restored to the normal state.

Specifically, the return structure 62 is a linear compression spring.

The working principle of the embodiment is as follows:

7. Pressing the cutting key 61 causes the cutter 63 to contact and sever a strand of suture 5.

8. The restriction part 2 is opened, the finished product is taken out, the auxiliary thread 32 is used for making knots, and the connection relation between the suture thread 5 and the suture needle 4 is locked.

Example 3

An auxiliary fixing method, comprising:

step one, the first limiting structure 21 fixes the suture needle 4 in the first placement area 11; the third limiting structure 23 fixes the suture 5 in the first placement groove 12;

the suture needle 4 with the suture thread 5 is fixed first, and then the suture thread 5 is fixed and the suture thread 5 is placed in a tight state so as to facilitate the penetration of the auxiliary needle 31.

Step two, the pushing component pushes the auxiliary needle 31 to drive the auxiliary wire 32 to move along the working path, and the auxiliary needle 31 passes through the suture 5.

The working path is closely attached to the trailing end of the needle 4 and the auxiliary wire 32 also effects the passage of the suture 5 after the auxiliary needle 31 has passed through the suture 5. At this time, the auxiliary needle 31 is removed, and the auxiliary thread 32 can be applied to define the connection relationship of the suture thread 5 and the suture needle 4. The volume of the knot is reduced while preventing the suture 5 from being separated from the suture needle 4, so that the suture needle 4 and the suture 5 can pass through the compact ligament more flexibly.

In some embodiments of the application, the auxiliary fixing method further comprises:

Step three, the cutting part 6 cuts one end of the suture 5.

The suture 5 is properly cut, so that the twin wires are changed into single wires, the number of the suture 5 which passes through the ligament once is reduced, the suture 5 can conveniently pass through the ligament, and the operation efficiency is improved.

The proposal of the invention can effectively reduce the knot volume, not only can be used for pelvic organ prolapse suspension ligament operation, but also can be used in the process of self-made suture line 5 with needle in other operations.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments described herein are only some, but not all, of the embodiments of the present application, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The application may be embodied or applied in other specific forms and features of the following examples and examples may be combined with each other without conflict, all other examples being contemplated by those of ordinary skill in the art without undue burden from the present disclosure, based on the examples of the application.

Claims

1. An auxiliary fixation apparatus, comprising:

A limiting part comprising a first limiting structure and a third limiting structure; the first limiting structure is matched with the first placement area and limits the posture of the suture needle; the third limiting structure is matched with the first placing groove and limits the posture of the suture line;

The puncture part comprises an auxiliary needle, an auxiliary wire and a pushing assembly; the auxiliary needle is detachably connected with the auxiliary wire; the pushing component is in sliding connection with the placement part; the pushing component pushes the auxiliary needle to move along the working path; the axis of the auxiliary needle coincides with the working path; the working path intersects the first placement groove; the working path of the auxiliary needle is clung to the tail part of the suture needle;

The first limiting structure is used for fixing the suture needle in the first placement area; the third limiting structure is used for fixing the suture line in the first placing groove; the pushing component pushes the auxiliary needle to drive the auxiliary wire to move along the working path, and when the auxiliary needle completely passes through the suture, the auxiliary wire also passes through the suture; making knots by using auxiliary wires, and locking the connection relation between the suture lines and the suture needles;

A cutting part is arranged on the placing part; one end of the cutting part passes through the placing part and then contacts and cuts one end of the suture line.

2. An auxiliary fixing apparatus according to claim 1, wherein a cutting groove is provided in the interior of the placement portion; the cutting groove is coincided with the first placing groove; the cutting groove is matched with the cutting part.

3. An auxiliary fixing apparatus according to claim 2, wherein the cutting portion comprises a cutting key and a cutter; one end of the cutter is matched with the cutting groove, and the other end of the cutter is fixedly connected with the cutting key; one end of the cutter, which is far away from the cutting key, is a cutting end.

4. An auxiliary fixing device according to claim 1, wherein a puncture track is provided inside the placement portion; the puncture track coincides with the working path; the puncture track is close to the tail of the suture needle.

5. The auxiliary fixation apparatus of claim 1, wherein the restriction further comprises a second restriction; the second limiting structure is disposed between the first limiting structure and the third limiting structure.

6. The auxiliary fixing apparatus according to claim 5, wherein a side wall of the second limiting structure is provided with a avoiding groove adapted to the cutter.

7. An auxiliary fixing device according to claim 1, wherein the side wall of the third limiting structure is provided with a pressing structure adapted to the first placing groove.

8. An auxiliary fixing method, adapted for an auxiliary fixing apparatus according to any one of claims 2 to 7, comprising:

9. A suture needle for use in an auxiliary fastening device according to any one of claims 2-7, comprising a needle tip and a needle tail; the blunt end of the needle point is fixedly connected with the needle tail; the maximum outer diameter of the needle point is the same as the outer diameter of the needle tail; the inside of needle tail sets up V type groove.