WO2023087294A1

WO2023087294A1 - Knotting assembly

Info

Publication number: WO2023087294A1
Application number: PCT/CN2021/132010
Authority: WO
Inventors: 杜方超; 吴文毅; 陈贵华
Original assignee: 迈磊医疗器材股份有限公司
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2023-05-25

Abstract

Provided in the present invention is a knotting assembly. The knotting assembly comprises: a hollow straight-rod-shaped outer tube and inner tube, the inner tube being slidably arranged in the outer tube in a penetrating manner, and at least part of the inner tube forming a lasso segment protruding from the outer tube; a binding wire arranged in the inner tube in a penetrating manner, at least part of the binding wire passing out of the inner tube from the lasso segment, and winding the lasso segment to form a pre-lasso; and a safety wire, which passes through at least part of the pre-lasso, and is interlocked with at least part of the pre-lasso.

Description

knotted composition

technical field

The invention relates to a knotting mechanism, in particular to a knotting composition.

Background technique

With the development of modern medical technology, the requirements for surgery are also developing in the direction of small wounds or minimally invasive, which can not only achieve fast and good wound recovery, but also help the disappearance and improvement of scars after healing. . In the prior art, when an operator uses a surgical suture to suture a wound, he usually holds a sewing needle and knots the end of the surgical suture so that the surgical suture can tighten the tissues on both sides of the wound, And form a fixed knot to fix the end of the surgical suture.

However, in the above-mentioned prior art, the operator needs to wrap his hand around the suture to form the fixing knot. The process of tying is not only complicated and time-consuming, but also the most important thing during the operation is the time of the operation. At this time, if the above-mentioned knotting method is used to form multiple fixed knots on the wound one by one, it will not only take a long time and be inefficient, but if it is not properly tied, it will easily cause the wound to crack and affect the recovery efficiency of the patient. .

Contents of the invention

In order to overcome the complicated and time-consuming process of tying when forming a fixed knot at the end of a wire in the existing knotting technology, and when it is applied to suture a wound in surgery, it is necessary to repeatedly operate on the wound one by one to form a plurality of the fixed knots , so that the overall operation time is long and inefficient, and it is also easy to produce human factors that the wound is dehiscated without proper tying, which affects the recovery efficiency of the patient. The present invention provides a knotting composition, which comprises a hollow straight rod-shaped outer tube and an inner tube, the inner tube is slidably passed through the outer tube, and at least a part of the inner tube forms a noose section to protrude on the outer tube; a tie wire, the tie wire is passed through the inner tube, the tie wire includes a tie line section, the tie line section passes through the inner tube to the noose section, and wraps around the sleeve The rope section forms a pre-noose; and a safety wire, which passes through at least a part of the pre-noose, and interlocks between the safety wire and at least a part of the pre-noose.

Wherein, the pre-noose includes a tight loop formed between the tying wire segment and the noose segment, and a winding knot wound on the noose segment; The other end includes an actuating wire segment, the size of the tightening ring is adjusted as the actuating wire segment moves relative to the inner tube; structure, the ring structure buckles the pre-noose and keeps the pre-noose on the noose segment close to the outer tube.

Wherein, both ends of the insurance wire extend toward the direction of the actuating wire segment.

Further, the twisting knot is wrapped around the noose segment in a double loop to form a slipknot, and the ring structure is hooked to the twisting knot.

Further, the winding knot is wound on the noose section in three turns to form a slipknot, and the ring structure is hooked on the winding knot.

Further, the hook of the ring structure is located in one of the turns of the twisted knot in the direction of a free end.

Further, the ring structure and the tightening ring are interlocked, and the ring structure is located at the connection between the tightening ring and the winding knot.

The advantage that the present invention can reach is:

1. The interlocking structural relationship between the safety wire and the pre-noose, the safety wire can exhibit the characteristics of fixing the pre-noose to the noose section, and the pre-noose may not be easy to the noose section loosening or slipping off, so as to prevent the pre-lassose from slipping off in unexpected situations.

2. The safety wire is used to fix the pre-noose without setting up other fixing structures, so that the knotting composition provided by the present invention can be designed to minimize the overall volume.

3. Also because the knotting composition of this case can omit the structure of fixing the pre-lass, the tubular inner tube and the outer tube can be formed of a soft material, so that the knotting composition can be adapted to complex and narrow In the space, it is helpful to the progress of minimally invasive surgery.

4. Select the size of the binding wire, the safety wire and the knotting wire according to the needs; the number of turns the winding knot is formed on the noose section; the position of the safety wire hook on the pre-noose and the knotting The quantity of knotted wires penetrating into the tightening ring further adjusts the size of the fixed knot, which makes the present invention extremely diverse in applicability.

5. The overall structure of the knotted composition of the present invention is simple, convenient to use, and low in cost. The feature that the insurance wire is directly tied to the tie wire to form a knot can reduce the overall design and volume of the mechanism, and improve the safety in the human body cavity or narrow space. The flexibility within the space increases the applicable range of the knotting mechanism.

Description of drawings

Fig. 1 is the schematic diagram of the first preferred embodiment of the present invention;

Fig. 2 is the schematic diagram of the second preferred embodiment of the present invention;

Fig. 3 is the schematic diagram of the third preferred embodiment of the present invention;

Fig. 4 is the schematic diagram of the fourth preferred embodiment of the present invention;

5 is a schematic diagram of the first step of the present invention;

6 is a schematic diagram of the second step of the present invention;

Fig. 7 is a schematic diagram of the third step of the present invention.

Symbol Description:

10 outer tube

20 inner tube

21 lasso segments

22 Inner tube through hole

30 series tied wire

31 series tie line segment

32 Pre-Lasso

321 tight ring

322 Tangle Knot

33 Action line segment

40 insurance wire

41 ring structure

50 knotted wire

51 Knotted Line Segments

A fixed knot

Detailed ways

Referring to FIG. 1 and FIG. 7 , it is a preferred embodiment of the knotting composition provided by the present invention. The knotting composition includes an outer tube 10 , an inner tube 20 , a binding wire 30 and a safety wire 40 . Both the outer tube 10 and the inner tube 20 are in the shape of a hollow straight rod, and the inner tube 20 is slidably passed through the outer tube 10, at least a part of the inner tube 20 protrudes from the outer tube 10, wherein the The inner tube 20 axially passes through an inner tube through hole 22, and at least a part of the inner tube 20 protruding from the outer tube 10 can be further defined as a noose segment 21, the length of the noose segment 21 can pass through the inner tube The sliding relationship of the tube 20 relative to the outer tube 10 is adjusted.

The tying wire 30 is axially passed through the inner tube through hole 22, and one end of the tying wire 30 is a tying wire section 31, and the tying wire section 31 passes through the lasso section 21 in the direction. The inner tube passes through the hole 22 , and the tying wire section 31 is wound around the noose section 21 to form a pre-noose 32 . The pre-noose 32 includes a tightening loop 321 formed between the tying wire section 31 and the noose section 21 and a winding knot 322 wound on the noose section 21 .

Wherein, the other end of the binding wire 30 is an actuating wire segment 33, and the size of the tightening ring 321 can be adjusted as the actuating wire segment 33 moves relative to the inner tube 20; the winding knot 322 is formed on the sleeve The method of the rope segment 21 is not limited. In the present embodiment, the binding wire segment 31 forms the winding knot 322 on the lasso segment 21 in a way that a double loop is wound to form a slipknot.

The safety wire 40 passes between at least a part of the pre-noose 32 and the noose segment 21 , and the safety wire 40 and at least a part of the pre-noose 32 are interlocked. Preferably, the two ends of the safety wire 40 extend towards the same direction, so that the recess of the safety wire 40 forms a ring structure 41, and the safety wire 40 passes through the ring structure 41 and at least a part of the pre-noose 32 Check each other. More preferably, both ends of the safety wire 40 extend towards the direction of the actuating line 33, so that when the pre-noose 32 passes through the ring structure 41, it can remain on the noose section 21 close to the outer tube 10 positions.

The interlocking structural relationship between the safety wire 40 and the pre-noose 32, the safety wire 40 can exhibit the characteristics of fixing the pre-noose 32 on the noose section 21, so that the pre-noose presented by the slipknot The noose 32 is not easy to loosen or slip off from the noose section 21 , thereby preventing the pre-noose 32 from slipping off under unexpected conditions.

Please refer to FIG. 1 to FIG. 4, the position where the safety wire 40 is hooked on the pre-noose 32 is not limited. As shown in FIG. The double loop can be hooked, and both ends of the safety wire 40 extend towards the direction of the actuating line 33 , so that the ring structure 41 can fix the relative position of the double loop on the noose section 21 . The setting of the safety wire 40 not only can achieve the effect of fixing the pre-noose 32, but also can achieve increased The effect of the size of the fixed knot A, the steps and features of forming the pre-noose 32 into the fixed knot A will be further described in detail later.

Since the winding knot 322 is formed on the noose section 21, there is no limit, as in the second preferred embodiment provided by the present invention as shown in FIG. The winding knot 322 is formed on the noose section 21, wherein the safety wire 40 passes through the circle of the winding knot 322, and both ends of the safety wire 40 extend toward the direction of the actuating wire section 33, so that the ring structure 41 just can fix the relative position of this reference circle on this lasso section 21. The number of turns of the winding knot 322 formed on the noose section 21 can be increased or decreased according to needs, as the number of turns of the winding knot 322 around the noose section 21 increases, the pre-noose 32 will subsequently form the fixed knot The size of A can also be increased accordingly.

As shown in Figure 3, in the third preferred embodiment provided by the present invention, the binding line section 31 is also wound on the noose section 21 to form the winding knot 322 with the same circle, the difference is that the The safety wire 40 passes through one of the circles in the direction of the free end in the middle of the reference circle, so that the ring structure 41 only hooks the one circle in the direction of the free end, so that the other two circles can pass through the safety wire 40 and the circle of the free end. One circle of abutment remains on the noose section 21 near the outer tube 10 . Since the annular structure 41 is only interlocked with one of the circles, compared with the second embodiment, the size of the annular structure 41 is relatively small, and the size of the fixed knot A formed later is also relatively smaller than the aforementioned In the second embodiment, the present invention can display various knotting patterns by adjusting the twisted knot 322 and the ring structure 41 according to a position to be knotted (such as the location of a wound or the characteristics of the tissue).

As shown in Figure 4, the safety wire 40 is not limited to interlocking with the winding knot 322, the safety wire 40 can also exist in the form of passing through the tightening ring 321. In this embodiment, the safety wire 40 forms the ring structure 41 and The tightening ring 321 is interlocked with each other, and the ring structure 41 is located at the junction of the tightening ring 321 and the winding knot 322, wherein, both ends of the safety wire 40 extend towards the direction of the actuating wire segment 33, so that The ring structure 41 can abut against the knot 322 and retain the knot 322 on the noose section 21 near the outer tube 10 .

Further, the safety wire 40 can also form a dead knot on at least a part of the pre-noose 32, the dead knot formed by the safety wire 40 includes the ring structure 41 interlocking with the pre-noose and a knot The structure, in this way, can ensure that the safety wire 40 will not be displaced relative to the pre-noose 32 .

Cooperate with reference to Fig. 1, Fig. 5 to Fig. 7, which is a schematic diagram of the steps of forming the fixed knot A of the knotting composition of the present invention, including at least one knotting wire 50, the knotting wire 50 passes through the tightening ring 321, and is located at the The knotted wire 50 in the tightening ring 321 can be defined as a knotted wire segment 51 .

Firstly, when the fixed knot A is to be formed, the actuating wire segment 33 located in the inner tube 20 is pulled, so that the tightening ring 321 gradually shrinks through the actuating wire segment 33 and abuts against the lasso segment 21 front end, at this time, the knotting line segment 51 is tightened by the tightening ring 321, and the knotting line segment 51 also abuts against the front end of the noose segment 21 or an outer periphery of the noose segment 21 surface.

As the actuating wire segment 33 is continuously pulled, the tightening ring 321 drives the inner tube 20 to move relative to the outer tube 10 and move into the outer tube 10, so that the length of the noose segment 21 is gradually shortened. The winding knot 322 and the safety wire 40 move through the outer tube 10 and gradually move toward the free end on the noose section 21 . It should be noted that when the winding knot 322 and the safety wire 40 move toward the free end, the actuating wire segment 33 is still pulled continuously, so the tightening ring 321 remains tightly bound, and the configuration of the safety wire 40 It can prevent the winding knot 322 from loosening early when the noose section 21 moves.

Then, the actuating wire segment 33 continues to pull, and the outer tube 10 continues to push the winding knot 322 and the safety wire 40 moves toward the free end, when the winding knot 322 and the safety wire 40 are positioned at the noose 21 on the outermost end of the free end, the knotted line segment 51 abuts against the opening of the inner tube through hole 22 at the free end of the outer tube 10 through tightening. Further, the insurance wire 40 can leave the winding knot 322 at the extreme end position of the free end of the inner tube through the ring structure 41, which can prevent the winding knot 322 from falling into the inner tube as the actuating wire segment 33 is driven. In the inner tube through hole 22 of the tube 20, this feature can make the winding knot 322 or the fixed knot A formed later need not limit its size to be larger than the nozzle of the inner tube 20, so that it can be more flexible As well as extensive use of the knotted composition provided by this case.

Finally, when the noose section 21 is completely retracted into the outer tube 10 , the winding knot 322 and the safety wire 40 are completely separated from the noose section 21 , and a tight space is defined inside the winding knot 322 . Simultaneously, the actuating wire segment 33 continues to pull, so that the bundle loop 22 pulls the knotted wire segment 51 to fold back to form a tightening ring structure 511 that goes deep into the tightening space, and the winding knot 322 is continuously pulled through the actuating wire segment 33 , so that the pre-noose 32 tightly binds the knotted wire segment 51 and the safety wire 40 to form the fixed knot A.

When the noose section 21 is fully received into the outer tube 10, when the size of the fixing knot A is larger than an opening at the free end of the outer tube 10, it can prevent the fixing knot A from sinking into the outer tube 10 when it is formed. opening, and the outer tube 10 can also produce an abutment effect, so that when the fixed knot A is formed, it can abut against the position to be knotted through the front end of the outer tube 10, further preventing the knot 322 and the insurance wire from being entangled. 40 displaces at the moment of breaking away from the noose section 21, so as to prevent the fixing knot A from being formed in an unfavorable position. Hope to add

After the knot A is fixed, the knotting composition provided by the present invention includes the winding knot 322, the insurance wire 40 and the tightening ring structure 511 intertwined therein, so that the contact surface between them increases, further increasing The overall friction of the fixing knot A can better prevent the fixing knot A from loosening, especially when it is applied to a single wire. In addition, when the fixed knot A is about to be formed, the safety wire 40 can be pulled away from the pre-noose 32 and the noose section 21, so that the fixed knot A can be reduced according to requirements. size of.

The present invention fixes the pre-noose through the safety wire without setting up other fixing structures, so that the knotting composition provided by the present invention can be designed to minimize the overall volume, and because the fixing structure is omitted, the tubular inner The tube and the outer tube can be formed of a soft material, so that the knotted composition can be adapted to complex and narrow spaces, which is conducive to the use and progress of minimally invasive surgery.

In the present invention, the tie wire 30, the safety wire 40 and the knotted wire 50 are not limited to the same type or size of wire, and the tie wire 30, the safety wire 40 and the knotted wire 50 are not limited For surgical sutures, a user can select the size of the binding wire 30, the safety wire 40 and the knotting wire 50, the number of turns of the knot 322 formed on the noose section 21, the safety wire 40 is hooked on the position of the pre-noose 32 and the number of the knotted wire 50 passing through the tightening ring 321, further adjusting the size of the fixed knot A makes the present invention very applicable. In addition, the tie wire 30, the safety wire 40 and the knotted wire 50 are not limited to three separate wires. In some embodiments, the tie wire 30 and the safety wire 40 can be the same wire connected to each other. The wire, the tie wire 30 and the knotted wire 50 can also be the same wire connected to each other, or the insurance wire 40 and the knotted wire 50 can be the same wire connected to each other.

The knotting composition provided by the present invention is not limited to a specific field. For example, when the present invention is applied to a medical field, when an operator can use the knotted wire 50 to suture a wound, the operator can pass the knotted wire 50 through the tight ring 321 formed by the knot, and then At this time, the operator can displace the noose section 21 formed by the knotting to the vicinity of a wound suture, and pull along with the actuating line section 33. When the noose section 21 is fully received in the outer tube 10, the operation Personnel can put the winding knot 322 against the wound suture, so that the fixed knot A can be perfectly positioned on the wound suture when it is formed, and a good knotting effect can be achieved.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

A knotting composition, characterized in that it comprises:

An outer tube in the shape of a hollow straight rod and an inner tube, the inner tube is slidably passed through the outer tube, and at least a part of the inner tube forms a lasso section protruding from the outer tube;

A tying wire, the tying wire is passed through the inner tube, the tying wire includes a tying wire section, the tying wire section passes through the inner tube from the noose section, and is wound around the noose section to form a lasso; and

A safety wire, at least a part of the safety wire is interlocked with at least a part of the pre-noose.
The knotting composition according to claim 1, wherein the safety wire is threaded between at least a part of the pre-noose and the noose section.
Knotting composition as claimed in claim 1, characterized in that:

The pre-noose includes a tight loop formed between the lashing line segment and the noose segment, and a twisted knot wrapped around the noose segment;

The other end of the binding wire relative to the binding line includes an actuating line, and the size of the tightening ring is adjusted as the actuating line moves relative to the inner tube; and

Both ends of the insurance wire extend toward the same direction, and a ring structure is formed at the recessed portion of the safety wire, and the ring structure hooks the pre-noose and retains the pre-noose on the noose section near the outer tube position.
The knotting composition according to any one of claims 1 to 3, characterized in that, both ends of the insurance wire extend toward the direction of the actuating wire segment.
The knotting composition as claimed in claim 4, characterized in that, the twisted knot is wound on the noose segment in a double loop to form a slipknot, and the ring structure is hooked on the twisted knot.
The knot-tying composition of claim 4, wherein the twisted knot is wrapped around the noose section in three turns to form a slipknot, and the ring structure is hooked to the twisted knot.
The knot-tying composition as claimed in claim 5, wherein the hook of the ring structure is located in one of the turns of the twisted knot in the direction of a free end.
The knot-tying composition as claimed in claim 6, wherein the hook of the ring structure is located in one of the turns of the twisted knot in the direction of a free end.
The knotting composition according to claim 4, wherein the annular structure and the tightening loop interlock, and the annular structure is located at the connection between the tightening loop and the knot.
The knotting composition according to any one of claims 1 to 3, wherein the safety wire forms a dead knot on at least a part of the pre-noose, and the dead knot includes a hook interlocked with the pre-noose A ring structure and a knotted structure.