CN112220519A

CN112220519A - Binding belt and ligation device

Info

Publication number: CN112220519A
Application number: CN202011143356.2A
Authority: CN
Inventors: 张强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-01-15

Abstract

The invention discloses a cable tie and a ligature device, wherein the cable tie comprises a cable tie body and a locking portion. The cable tie body includes a locking segment, the locking portion is located at one end of the locking segment, and the locking portion is used to allow the locking segment to be threaded only along the tightening direction of the cable tie. through the locking portion; the cable tie body further includes a movable section, the movable section is farther away from the locking section than the locking section, and the locking section has a matching function with the locking section the locking structure, and the movable segment does not have the locking structure. The cable tie in the present invention is provided with a movable section without a locking structure before the locking section, so that the movable section can move in two directions of tightening and retracting before the tightening section meets the locking portion, so that the cable tie can move in two directions. Relatively easy to be mistakenly fastened.

Description

Binding belt and ligation device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a binding belt and a ligation device.

Background

A Cable Tie, also known as a Cable Tie, a Cable Tie or a locking strap, is a strap used for bundling articles. The binding belt has the function of stopping back, namely the binding belt is tightened more and more after being bound. Therefore, the conventional cable tie is difficult to avoid the problem of erroneous tightening. This can have adverse consequences if the band is used to perform a ligation operation under an endoscope.

Disclosure of Invention

The invention mainly aims to provide a binding belt and a ligation device with the same, so that the ligation is not easy to be tightened by mistake.

According to a first aspect of an embodiment of the invention, the twist tie comprises:

the cable tie body comprises a locking section; and

the locking part is positioned at one end of the locking section and is used for enabling the locking section to penetrate through the locking part only along the tightening direction of the cable tie;

the ribbon body still includes the movable segment, the movable segment compare in the locking section is kept away from locking portion, the locking section have with locking portion complex locking structure, and the movable segment does not have locking structure.

In some embodiments, the surface of the tie body is provided with a grooved structure.

In some embodiments, the tie body further includes a breakable section having a tensile strength less than a tensile strength of the active section and a tensile strength of the locking section.

In some embodiments, the movable section is embedded with a reinforcement.

In some embodiments, one end of the tie body is the locking section, and the other end of the tie body is a connecting section provided with a connecting portion for connecting with a traction piece.

In some embodiments, the connecting portion is a through-hole structure or a blind-hole structure for connecting with the pulling member.

In some embodiments, the width of the connecting section is less than the width of the movable section and the width of the locking section.

In some embodiments, the locking portion includes holding the cavity and stopping piece, stopping piece is located hold the cavity, hold the cavity and be provided with the through-hole that runs through hold the cavity, the through-hole confession the ribbon body passes through.

According to a second aspect of an embodiment of the invention, the ligation device comprises a pulling piece and a binding tape according to any one of the preceding claims, wherein one end of the pulling piece is connected with the connecting part of the binding tape.

In some embodiments, the pulling member is made of metal, so that the pulling member at the connecting position of the pulling member and the cable tie can be fused by electrifying.

The band and the ligation device in the embodiment of the invention have at least the following beneficial effects: the ribbon has set up the movable section, and the movable section is compared and is kept away from locking portion in locking section, and the movable section does not have locking structure for the movable section can be followed and is tied up and move back two directions before the section meets with locking portion at the section of tying up, thereby the ribbon is difficult for the mistake to be tied up relatively.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural view of a cable tie (with movable segments) in some embodiments of the present invention;

FIG. 2 is a schematic structural view of a cable tie in accordance with another embodiment of the present invention (provided with a slotted configuration);

FIG. 3 is a schematic structural view of a tie in other embodiments of the invention (with a breakable section);

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is an exploded view of a ligation device with a cable tie in an embodiment of the invention.

In the drawings, 1-the ligator device; 10-ribbon, 1011-connecting section, 1012-movable section, 1013-breakable section, 1014-locking section, 1015-groove type structure, 1016-traction connecting hole and 1017-steel sheet; 102-locking part, 1021-retaining pawl, 1022-accommodating cavity; 121-traction element, 1211-outer tube, 1212-traction element control, 1213-traction element body; 122-a pusher; 14-operating handle.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", and "left", "right", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, and may be, for example, a fixed connection and a movable connection, a detachable connection and a non-detachable connection, or an integral connection; may be mechanically or electrically connected or may be in communication with each other. And "fixedly connected" includes detachably connected, non-detachably connected, integrally connected, and the like.

The use of terms like "first" or "second" in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance or implicit to the technical feature indicated.

The technical solutions of the embodiments of the present invention may be combined with each other. It should be noted that the embodiments described below are some embodiments and not all embodiments. The components of the embodiments generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

A first aspect of an embodiment of the present invention relates to a cable tie. Referring to fig. 1, tie 10 includes a tie body having a locking segment 1014 and a locking portion 102 at one end of locking segment 1014, locking portion 102 being configured such that locking segment 1014 can only pass through locking portion 102 in the direction in which tie 10 is tightened.

Referring to fig. 1 and fig. 3 (fig. 2 does not show the structure of the accommodating cavity 1022 and the retaining member), the locking portion 102 includes the accommodating cavity 1022 and the retaining member, the retaining member is located in the accommodating cavity 1022, the accommodating cavity is provided with a through hole penetrating through the accommodating cavity 1022, and the through hole is used for the strap body to pass through. Specifically, as shown in fig. 1 and 3, the retaining member is a retaining claw 1021 having a pawl structure. It will be appreciated that the backstop may also be of a one-way passage configuration having a flared shape.

The locking segment 1014 is provided with locking structures such as serrations or evenly spaced protrusions, and the locking structures of the locking segment 1014 cooperate with the locking portion 102 to form a unidirectional moving part similar to a ratchet and pawl. The locking structure of the locking segment 1014 acts as a ratchet and the locking portion 102 acts as a pawl so that the locking segment 1014 can only move in the direction of tightening the strap and cannot be retracted.

As shown in fig. 1, the tie body also includes an active segment 1012, the active segment 1012 being distal from the locking portion 102 as compared to the locking segment 1014. As can be seen in fig. 1, the locking segment 1014 has a locking structure that cooperates with the locking portion 102, while the movable segment 1012 does not have a locking structure. Specifically, the band body is provided with a connecting section 1011, a movable section 1012 and a locking section 1014 in this order, and the end of the locking section 1014 is fixed to the locking portion 102.

The ribbon has set up the movable section, and the movable section is compared and is kept away from locking portion in locking section, and the movable section does not have locking structure for the movable section can be followed and is tied up and move back two directions before the section meets with locking portion at the section of tying up, thereby the ribbon is difficult for the mistake to be tied up relatively.

Referring to fig. 2, it can be understood that, on the basis of the above-mentioned embodiments, the surface of the band body may be further provided with a groove structure, for example, the surfaces of the connecting section 1011, the movable section 1012 and the locking section 1014 along a part of or the entire length may be provided with a groove structure, or the inner side surface or both the inner and outer side surfaces of the band 10 enclosing a loop may be provided with a groove structure, so that the cross section of the band 10 is "u" shaped (the inner side surface is provided with a groove) or "H" shaped (the inner side surface and the outer side surface are both provided with a groove), thereby providing a guiding function for the matching of the locking portion 102 and the band body and facilitating the band body to pass through the accommodating cavity of the.

Referring to fig. 3, the strap body further includes a breakable section 1013, and the tensile strength of the breakable section 1013 is less than the tensile strength of the movable section 1012 and the tensile strength of the locking section 1014. Specifically, as shown in fig. 3, the tie body may also be provided with a connecting section 1011, an active section 1012, a breakable section 1013, and a locking section 1014 in this order, and the tensile strength of the breakable section is lower than that of the active section 1012 and that of the locking section 1014. The breakable section is easy to break, can be made of a material with low tensile strength at the breakable section, and can also be easy to break on the shape structure (for example, the thickness of the breakable section is smaller than that of other sections of the ribbon body). The breakable sections are positioned just before the locking sections 1014, and after the tie body is broken, only the locking sections 1014 and the locking portion 102 remain on the object being bound, thereby leaving less of the tie body behind after binding.

It will be appreciated that the breakable sections may also be located elsewhere in the tie body, such as near the connecting section 1011. It will be appreciated that the surface of the entire or part of the length of the band body provided with the breakable sections may also be correspondingly provided with a groove-like structure.

In order to make the difference between the tensile strength of the breakable section 1013 and the tensile strength of the adjacent movable section 1012 and locking section 1014 more obvious, the movable section 1012 of the cable tie 10 is embedded with a reinforcing member, which may be a metal sheet or a metal wire. Specifically, as shown in fig. 4, a steel sheet 1017 is embedded in the active segment 1012, so that the tensile strength of the active segment 1012 is enhanced, and the active segment 1012 is not easily broken.

As shown in fig. 1 to 3, in some embodiments, one end of the tie body is the locking section 1014, the other end of the tie body is the connecting section 1011, and the connecting section 1011 is provided with a connecting part for connecting with the traction piece. After the connecting portion are arranged, the whole cable tie can be pulled by the traction piece, and therefore the cable tie can be conveniently controlled at a longer distance.

It is understood that the connection is a through-hole or blind-hole structure for connection to the pulling element. The through hole structure or the blind hole structure is simple in structure and is easily connected with a traction piece with a hook part. Specifically, as shown in fig. 1-3, the coupling is a hitch coupling hole 1016. The tie body may be connected to a pulling member through a pulling attachment hole 1016.

As shown in fig. 1-3, in some embodiments, the width of the connecting section 1011 is less than the width of the movable section 1012 and the width of the locking section 1014. The connecting section 1011, which is the part of the entire band body that enters and passes through the locking portion 102 first, is designed to be of a narrower structure, so that the band body can enter the accommodating cavity of the locking portion 102 more easily.

A second aspect of embodiments of the present invention relates to a ligation device including a cable tie.

In some embodiments, the pulling member 121 is coupled to a cable tie. Pulling member 121 is used to attach the attachment portion of tie 10. Specifically, as shown in fig. 5, one end of the pulling piece 121 has a bent portion for connecting the connecting portion of the band 10. Other attachment structures for pulling element 121 are possible, such as a protrusion on one end of pulling element 121 that mates with a slot or recess in the attachment portion of tie 10.

The connecting section 1011 of the cable tie 10 is connected with the traction piece 121, so that the traction operation of the cable tie body can be realized. The connecting section 1011 and the movable section 1012 do not have a locking structure, so that the two sections can be retracted when passing through the locking part 102, and the problem that the binding tape 10 is prematurely tightened if the relative positions of the binding tape 10 and the target object to be bound are not adjusted properly is avoided. Initially, the tie 10 may not need to be tightened while the connecting section 1011 and the movable section 1012 pass through the locking portion 102; the band 10 is tightened with the backstop function only when the locking segment 1014 has passed through the locking portion 102.

As shown in fig. 5, the traction element 121 includes an outer tube 1211, a traction element control portion 1212, and a traction element body 1213. One end of the ligation device 1 is provided with an operating handle 14, and the operating handle 14 can drive the traction element control portion 1212. The retractor body 1213 is located inside the outer tube 1211. The retractor control 1212 is used to manipulate the movement of the retractor body 1213. The tow member body 1213 shown in fig. 5 is a tow wire. The end of the pulling piece body 1213 has a bent portion or a hook portion, and the pulling piece body 1213 passes through the outer tube 1211 to hook the cable tie 10, so that the movement of the pulling piece body 1213 can move the cable tie 10. By means of the retractor body 1213, the manipulation end of the ligation device in an embodiment of the invention can control the manipulation of the cable tie 10 even when away from the object to be ligated.

With continued reference to fig. 5, the ligation device 1 further comprises a pushing member 122, the pushing member 122 also being located inside the outer tube 1211. Pusher 122 abuts band 10 and the force applied by pusher 122 to band 10 is in the opposite direction to the force applied by pulling element 121 to band 10. It will be appreciated that the tightening of the band is achieved by ensuring that the other end of the band 10 is fixed or subjected to a pushing force in the opposite direction while a pulling force is applied to one end of the band 10, so that the band 10 is pulled more effectively and further the band 10 is tightened more effectively. Specifically, pulling member 121 applies a pulling force rearward against band 10, while pushing member 122 applies a pushing force forward against another location of band 10, thereby causing band 10 to be securely tightened. As shown in fig. 5, the pusher 122 is tubular in form. It will be appreciated that the pusher 122 may take other forms as well.

Referring to fig. 5, in some embodiments, the pulling member 121 is made of metal, so that the pulling member 121 at the connecting position of the pulling member 121 and the binding tape can be electrically fused. Specifically, with the aid of a conductive interface on the ligator device, the pulling member 121 (e.g., a pull wire) can be energized until blown, thereby releasing the band. It is understood that other metal pulling members 121 may be used as required to ensure that they can be electrically fused.

The following text describes the installation and use steps of the ligation device in an embodiment of the invention:

the installation step:

(1) the pulling piece body 1213 is pushed out of the pusher 122 by the pulling piece control portion 1212, and the coupling portion of the band 10 and the pulling piece body 1213 is hooked with the hook portion of the pulling piece body 1213. The tie 10 is then pulled completely inside the outer tube 1211 by the pulling member body 1213.

(2) The installed ligation device is passed through the working channel of the endoscope, the outer tube 1211 of the ligation band 10 is placed in the working channel of the endoscope, or the outer tube 1211 of the ligation band 10 is fixed to the body of the endoscope. The band 10 is then fed with the endoscope into the stomach or bowel cavity of the person.

A ligation step:

(1) the mounted ligation device is sent into the stomach cavity or the intestinal cavity of the human body along with the endoscope through the oral cavity or the anus of the human body;

(2) after the endoscope reaches the target object to be bound, the outer tube 1211 is moved toward the handle side so that the binding band 10 protrudes from the inside of the outer tube 1211;

(3) using tie 10 to tie over the object, tie 10 is tightened by pushing outer tube 1211 to attempt to pre-tie over the object to assess whether the tie location is appropriate. If not, the outer tube 1211 can be moved to the handle side to release the tie 10 to readjust the position of the tie 10;

(4) after the cable tie 10 is pre-tied at a proper position of a target object, the traction piece body 1213 is pulled by force through the traction piece control portion 1212, and the pushing piece 122 is pushed at the same time, so that the front end of the pushing piece 122 abuts against the locking portion 102 of the cable tie 10, a reaction force opposite to the pulling force is generated, and the cable tie 10 is further tightened to achieve the purpose of tightly tying the target object;

(5) after the target object is tightly fitted, the outer tube 1211 is moved backward and the traction member body 1213 is pushed with reference to the operation handle 14. The tie 10 is pushed out of the pusher 122 and the outer tube 1211, thereby releasing the tie 10. The band 10 is left on the body and the ligation device 1 is withdrawn from the body along with the endoscope.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cable tie, comprising:

the cable tie body comprises a locking section; and

it is characterized in that the preparation method is characterized in that,

2. The tie of claim 1, wherein a surface of the tie body is provided with a grooved structure.

3. The tie of claim 1, wherein the tie body further comprises a breakable section having a tensile strength less than a tensile strength of the active section and a tensile strength of the locking section.

4. A tie according to claim 3, wherein the movable section is embedded with a reinforcing member.

5. A tie according to any one of claims 1 to 4, wherein one end of the tie body is the locking section and the other end of the tie body is a connecting section provided with a connecting portion for connection with a pulling element.

6. A tie according to claim 5, wherein the connecting portion is a through-hole or blind-hole arrangement for connection with a pulling member.

7. The tie of claim 5, wherein the connecting segment has a width less than the width of the movable segment and the width of the locking segment.

8. The tie according to any one of claims 1 to 4, wherein the locking portion comprises a receiving cavity and a backstop, the backstop being located within the receiving cavity, the receiving cavity being provided with a through hole passing through the receiving cavity, the through hole being for passage of the tie body.

9. A ligation device comprising a pulling member and a binding tape according to any one of claims 1 to 8, the pulling member having one end attached to an attachment portion of the binding tape.

10. The ligation device according to claim 9, wherein the pulling member is made of metal so that the pulling member at the connection with the ligation band can be electrically fused.