CN114760934A

CN114760934A - Push tube knotting device for medical suture wire

Info

Publication number: CN114760934A
Application number: CN202080016130.8A
Authority: CN
Inventors: 杜方超; 吴文毅; 陈贵华
Original assignee: Mailei Medical Equipment Co ltd
Current assignee: Mailei Medical Equipment Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2022-07-15
Also published as: WO2022077419A1

Abstract

A tube pushing and knotting device for medical suture wires is characterized in that a sliding tube (11) is slidably arranged in an outer tube (10) in a penetrating manner, the front end of the sliding tube (11) extends out of the outer tube (10) to form a sleeved part (111), a tying wire (20) is arranged in the sliding tube (11) in a penetrating manner and tied to form a loose knot (21) in the sleeved part (222), a tying ring (22) is formed between the extending part and the loose knot (21), a tying wire section (31) different from the tying wire (20) is arranged in a penetrating manner, when the tying wire (20) is pulled backwards, the sleeved part (111) is moved into the outer tube (10), the tying ring (22) is reduced and the tying wire section (31) is reversely folded to enable the reversely folded end (311) to sink into the front end of a threading hole (112), and the loose knot (21) falls off from the sleeved part (111) and forwards crosses the tying ring (22), tightly binding the knotted line segment (31) to form a line head structure (A) at the reverse folding position; the knotted wire section (31) of the wire can be easily and quickly formed into a rope head by a user through the structure (A), and the knotted wire section is suitable for operation of suturing wounds or forming heads by various wires.

Description

Push tube knotting device for medical suture wire

Technical Field

The invention relates to a knotting composition structure, in particular to a push tube knotting device for medical suture wires.

Background

When the existing rope threads are fixed after passing through an object, the tail ends of the rope threads are usually tied to form a head or fixed knots to fix the tail ends of the rope threads. For example, when a wound is sutured with a surgical suture, the surgical suture is driven by a suture needle to cross and pass through two sides of wound tissues and is knotted at the end of suturing operation, so that the surgical suture can tighten the tissues on two sides of the wound, and the effect of healing the wound is achieved.

The above-mentioned means for fixing the string requires tying a knot at the end of the string to form a head, and therefore, the tying operation is complicated and takes a long time. When the operation of fixing the string is required to be rapid, especially when the operation is applied to surgical suture wounds, the operation becomes inefficient, and the improvement is required to simplify the way of knotting the tail end of the string to form the head part and accelerate the operation of the surgical suture wounds.

Disclosure of Invention

Since the existing string requires a complicated tying operation when a head is formed or a knot is tied at the end, the knotting process is inefficient particularly when the string is applied to surgical suture wound closure. Therefore, the invention enables a user to utilize the slipknot to form a thread end structure on the thread material when using the invention through the structure of the preformed slipknot, thereby achieving the knotting effect of quickly forming the thread end on the thread material.

To achieve the above objects, the present invention provides a tube-pushing knotting device for medical suture, which comprises an outer tube, a sliding tube slidably inserted in the outer tube, the front end of the sliding tube penetrates out of the outer tube to form a sleeve part, a threading hole is formed in the sliding tube along the axial direction in a penetrating way, a tying wire is arranged, the thread body is wound on the sheathing part to form a slip knot with more than one circle, the rear end of the thread body penetrates into the thread hole, a bundle of loop is formed at the part of the tying thread material between the slip knot and the front end of the thread hole, more than one section of tying thread section different from the tying thread material is penetrated in the bundle of loop, the rear end of the tying thread material is pulled backwards, the binding ferrule reversely folds more than one knotted line segment and forms a reversely folded end which is sunk into the front end of the threading hole, wherein a piled polygon formed by the knotting wire and the tying wire which enter the sleeving part in pairs due to the reverse folding is accommodated in an inner circumference of the section of the sleeving part.

As a further improvement of the invention, the stacked polygon is a pentagon.

As a further improvement of the invention, the stacked polygons are hexagons.

As a further improvement of the invention, more than two knotting line segments are arranged in the bunched sleeve ring in a penetrating way, and the knotting line segments are parts of the same knotting wire which is wound and penetrates through the bunched sleeve ring for more than two times.

As a further improvement of the invention, the compression set of a projected cross-sectional area of the stacked polygon is between 3% and 30%.

As a further improvement of the invention, the part of the tying wire is fixed to the outer tube.

As a further improvement of the invention, wherein the stacked polygon is a closest-packed polygon.

As a further improvement of the invention, the stacked polygon may comprise at least one segment of an arcuate edge.

Compared with the prior art, the invention has the beneficial effects that:

when the invention is used, the knotted line segment to be knotted passes through the collar and then the tying line is pulled backwards, so that the line head structure is easily formed at the reverse folding position of the knotted line segment, the invention is suitable for the operation of finally knotting the surgical suture wound or forming the head part by various line materials, and can accelerate the surgical suture wound or quickly finish the knotting operation after various line materials are tied.

Drawings

FIG. 1 is a schematic view of a knotted wire being threaded through a loop in accordance with a first preferred embodiment of the present invention;

FIGS. 2-4 are schematic views of the knotting process of the first preferred embodiment of the present invention at various stages;

FIG. 5 is a schematic view of a second preferred embodiment of the present invention for tying a knotted wire to a loop;

FIGS. 6-8 are schematic views of the knotting process of the second preferred embodiment of the present invention at various stages;

FIG. 9 is a schematic view of a third preferred embodiment of the present invention showing a knotted wire being threaded through a ferrule;

FIG. 10 is a schematic view of a slip knot configuration in accordance with another preferred embodiment of the present invention;

FIGS. 11-15 are schematic views showing the relationship between the cross-sectional dimensions of the sliding tube and different wires according to the preferred embodiment of the present invention;

FIG. 16 is a schematic cross-sectional view of a sliding tube and various deformed wires according to a preferred embodiment of the present invention;

FIG. 17 is a cross-sectional view of a sliding tube and different wires after deformation according to another embodiment of the present invention.

Description of the symbols:

10 outer tube

11 sliding tube

111 sleeve part

112 threading hole

20 tie wire

201 tying wire strand

21 slipknot

22-bundle ferrule

30 knotted wire

301 knotted wire stranded wire

31 knotted line segment

311 reverse-folded end

A thread end structure

B tissue

X pile up polygon

Y arc edge

Detailed Description

So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.

As shown in fig. 1 to 4, in a first preferred embodiment, the present invention provides a tube-pushing knotting device for medical suture wires, which comprises an outer tube 10, wherein the outer tube 10 is a straight tube, a sliding tube 11 is slidably inserted into the outer tube 10, the sliding tube 11 is a straight tube, the front end of the sliding tube passes through the outer tube 10, a sleeve portion 111 is formed at a portion of the sliding tube 11 passing through the outer tube 10, and a threading hole 112 is axially formed in the sliding tube 11; a tying wire 20 is provided, the body of which is wound around the sleeve portion 111 to form a double-loop slipknot 21, the rear end of which penetrates into the threading hole 112, and a bundle of ferrules 22 are formed at the part of the tying wire 20 between the slipknot 21 and the front end of the threading hole 112.

A knotted wire 30 is provided, in the preferred embodiment, the tying wire 20 and the knotted wire 30 are the same size of surgical suture, in other preferred embodiments, the tying wire 20 and the knotted wire 30 can be other types of wires, and are not limited to surgical sutures. Forming a knotted line segment 31 at the predetermined knotted portion of the knotted wire 30, and threading the knotted line segment 31 into the collar 22, then, the rear end of the binding wire 20 is pulled backward, the size of the binding ring 22 is narrowed and the engaging portion 111 is driven to move into the outer tube 10 by abutting against the front end of the sliding tube 11 along with the backward pulling of the rear end of the binding wire 20, at this time, the loop 22 is tightly tied to the knotted string 31 crossing over the outer tube 10 and the front end of the sliding tube 11, the knotted string 31 is reversely folded to form a reverse folded end 311, the reverse folded end 311 is sunk into the front end of the threading hole 112, the slipknot 21 is released from the sheathing portion 111 and goes forward over the loop 22 during the process, the slipknot 21 is tightly tied to the reverse folded portion of the knotted string 31 to form a string head structure a, and finally the overlong portions of the front ends of the knotted string 20 and the knotted string 30 can be selectively cut according to the requirement.

The reverse-folded end 311 of the knotted string piece 31 of the present invention is required to be recessed into the front end of the threading hole 112 before the formation of the end structure a. Therefore, it is preferable that the diameter of the front end of the threading hole 112 is larger than the width of the binding wire 20 and the reverse-folded end 311; and in order to prevent the string head structure a from falling into the string passing hole 112 during the formation process, the size of the front end of the string passing hole 112 needs to be smaller than the width of the tying wire 20 wound around the tying wire 20 together with the reverse-folded portion of the knotted string piece 31.

In addition to the first preferred embodiment, the loose knot 21 is tightly tied at the reverse fold of the knotted string 31 of one knotted string 30 to form the string head structure a, or the loose knot 21 may be tightly tied at the reverse fold of more than two knotted strings 30 to form the string head structure a, as shown in fig. 5 to 8, which are the second preferred embodiment of the present invention.

The second preferred embodiment is the same as the first preferred embodiment with respect to the construction of the outer tube 10, the sliding tube 11, and the tying wire 20. In the second preferred embodiment, two knotting wires 30 are provided, a knotting wire segment 31 is formed at each of the predetermined knotting positions of the two knotting wires 30, the two knotting wire segments 31 are inserted into the loop 22, then, the rear end of the tying wire 20 is pulled backward, the size of the binding ring 22 is restricted and the engaging portion 111 is driven to move into the outer tube 10 in a manner of abutting against the front end of the sliding tube 11 along with the backward pulling of the rear end of the tying wire 20, at this time, the loop 22 is tightly tied to the knotted string 31 crossing over the front ends of the outer tube 10 and the sliding tube 11, the two knotted string 31 are reversely folded to form a reverse folded end 311, the reverse folded end 311 is sunk into the front end of the threading hole 112, the loose knot 21 is released from the sheathing part 111 and goes forward over the loop 22 during the process, and the loose knot 21 is tightly tied at the reverse folded position of the two knotted string 31 to form a string head structure a.

In addition to the above-mentioned second preferred embodiment, the slipknot 21 is tightly tied at the reverse folding position of the knotted line segment 31 of two different knotted line segments 30 to form the string head structure a, the above-mentioned two or more knotted line segments 31 can also be from the same knotted line segment 30, and as shown in fig. 9, in the third preferred embodiment of the present invention, the present invention is applied to suture human tissue and two knotted line segments 31 are threaded through the loop 22.

The third preferred embodiment is the same as the first and second preferred embodiments with respect to the outer tube 10, the sliding tube 11, and the tying wire 20. In the second preferred embodiment, a knotting wire 30 is provided, the knotting wire 30 is cross-sutured on both sides of the wound tissue B, when the wound is sutured to the end of the knotting wire 30, the knotting wire 30 is first passed through the loop 22, then passed through the tissue B on both sides of the wound, and then passed through the loop 22 for the second time, the two knotting portions of the knotting wire 30 which are passed through the loop 22 twice are the two knotting wire segments 31, and then the operation of pulling the rear end of the knotting wire 20 backward is the same as that of the second preferred embodiment, and therefore, the operation is not repeated herein.

In addition to the above-mentioned first to third preferred embodiments, the slipknot 21 is a double-loop slipknot, and the slipknot 21 pre-wound on the sleeve portion 111 can also be a single loop or more than three loops, such as the slipknot 21 shown in fig. 10 is a three-loop slipknot, and the number of loops of the slipknot 21 is not limited to the pattern of the above-mentioned preferred embodiments.

Further, the free end of the tying wire 20 can be fixed to the outer tube 10, which helps prevent the slip knot 21 from being loosened when the section of the tying wire 20 placed in the sliding tube 11 is pulled in the tube direction. Alternatively, it is preferable that a binding wire 20 and the outer tube 10 are combined with each other in a tension manner, for example, an elastic member is fixedly combined between the binding wire 20 and the outer tube 10 to provide a tension required for the knotting process of the binding wire 20 at the slipknot 21, and the elastic member may be a spring, a silicone string, a rubber string, or the like. The effect of fixing the free end of the tying wire 20 is to reduce the difficulty of tying and tying for the user and to reduce the probability of loosening the knot.

The above statement that the knotted

wires

20 and 30 are knotted and then enter the sliding tube 11, the diameter of the front end of the threading hole 112 is larger than the width of the knotted

wires

20 and 30, and the space surrounded by an inner circumference of the sleeve portion 111 at least accommodates a stacked polygon formed by the knotted

wires

30 and 20, the stacked polygon is a polygon formed by the outermost points of the knotted wires 30 and the most densely stacked

wires

20 and 30. Referring to fig. 11 as an example, the tying wire 20 and the knotted wire 30 folded back to be paired into the sheathing part 111 have the same wire diameter, so that the tying wire 20 and the knotted wire 30 folded back to be paired enter the sheathing part 111 of the sliding tube 11 together, and the stacking polygon X formed by the

wires

20 and 30 is a regular triangle irrespective of the state in which the

wires

20 and 30 are deformed by compression, and the stacking polygon X should be at least tangent to the inner circumference.

Referring to fig. 12, two knotted wires 30 and one tied wire 20 after being reversely folded enter the sheathing part 111, wherein the knotted wires 30 have a smaller diameter than the tied wire 20, so that the stacking polygon X is an isosceles triangle.

Referring to fig. 13 and 14, two knotted wires 30 are inserted into the loop 22 to draw the knotted wire 20 into the knotted wire 30, so that the stacked polygon X is a pentagon, fig. 13 shows an example where the knotted wires 30 and the knotted wires 20 have the same wire diameter, and fig. 14 shows that the knotted wires 30 have a smaller wire diameter than the knotted wires 20.

Referring to FIG. 15, three strands of the knotted wire 30 are shown penetrating the collar 22 to form a hexagonal packed polygon X.

Further, the material of each

wire

20, 30 can be selected to enter the set portion 111 to deform, wherein the compression deformation of a projection cross-sectional area of the stacking polygon is optimal to be 3% -30%, which is beneficial to reducing the risk of loosening the slip knot 21 and the risk of failure in the knotting process.

Referring to fig. 16 and 17, when each of the

wires

20 and 30 enters the sheathing part 111, the stacked polygons generated by the

wires

20 and 30 are respectively changed by 10% and 30%, wherein fig. 17 shows that both the knotted wire 30 and the tying wire 20 are twisted wires, the knotted wire 30 is formed by combining three knotted wire twisted wires 301, and the tying wire 20 is formed by twisting three tying wire twisted wires 201, so that the knotted wire 20 and the knotted wire 30 are formed by selecting materials, and the change of the projected sectional area between 10% and 30% is optimal for knotting effect and difficulty in loosening.

Further, the stacked polygon may be a closest-packed polygon.

Further, the stacked polygon may include at least one segment of an arc-shaped edge Y, which is a local cross-sectional shape change of the tying wire 20 or the tying wire 30 when entering the engaging portion 111 and being compressed along with the inner surface of the engaging portion 111.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, which is claimed, and all other equivalent changes and modifications that do not depart from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims

A push tube knotting device for medical suture wires is characterized in that an outer tube is provided, a sliding tube is slidably arranged in the outer tube, the front end of the sliding tube penetrates out of the outer tube to form a sleeving part, a threading hole is formed in the sliding tube in an axial direction in a penetrating way, a tying wire is arranged, the thread body is wound on the sheathing part to form a slip knot with more than one circle, the rear end of the thread body penetrates into the thread hole, a bundle of loop is formed at the part of the tying thread material between the slip knot and the front end of the thread hole, more than one section of tying thread section different from the tying thread material is penetrated in the bundle of loop, the rear end of the tying thread material is pulled backwards, the binding ring reversely folds more than one knotted line segment to form a reversely folded end which is sunk into the front end of the threading hole, wherein a piled polygon formed by the knotting wire and the tying wire which enter the sleeving part in pairs due to the reverse folding is accommodated in an inner circumference of the section of the sleeving part.
The push tube knotting device for medical suture wires of claim 1, wherein the stacked polygon is a pentagon.
The push tube knotting device for medical suture wires of claim 1, wherein the stacked polygon is a hexagon.
The push tube knotting device of claim 1, wherein more than two of the knotted string segments are threaded through the snare, and the more than two knotted string segments are portions of the same knotted string that are threaded through the snare twice or more.
The push tube knotting device for medical suture wires of claim 4, wherein a projected cross-sectional area of the stacked polygon has a compression set in the range of 3% to 30%.
The push tube knotting device for medical suture wires of claim 4, wherein a portion of the tying wire is fixed to the outer tube.
The push tube knotting device for medical suture wires of claim 5, wherein the packed polygon is a closest packed polygon.
The push tube knotting apparatus of claim 5, wherein the stacked polygon comprises at least one arcuate edge.
The push tube knot tying device for medical suture wires as claimed in claim 1, wherein more than two of said knotting line segments are threaded in the snare, the more than two knotting line segments being portions of the same knotting wire wound through the snare twice or more.