CN111265263A

CN111265263A - Ligation clip

Info

Publication number: CN111265263A
Application number: CN202010197135.7A
Authority: CN
Inventors: 杨金亮; 蒋屏山; 姜小波
Original assignee: Foshan Special Medical Catheter Co ltd
Current assignee: Foshan Special Medical Catheter Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-06-12

Abstract

The invention relates to the technical field of medical instruments, in particular to a ligation clip, which comprises: the female plug-in body is provided with an access passage and a ligation groove which are communicated, and the micro pipeline can enter along the access passage and is accommodated in the ligation groove; the male plug body is in plug-in fit with the female plug body to be movably accommodated in the ligation groove and the access channel, the head of the male plug body is matched with the ligation groove in shape, and the head of the male plug body is abutted against the side wall of the ligation groove to ligate the fine pipeline; and a locking member for locking the male socket body at a predetermined position of the female socket body so that the head of the male socket body abuts against the side wall of the ligation groove. Through dividing into two parts of female socket and public socket with the ligature clamp, at the in-process to the tiny pipeline ligature, need not the ligature clamp and take place deformation, successfully avoided degradable magnesium alloy non-deformable's characteristics to can carry out effectual clamp to the tiny pipeline and close.

Description

Ligation clip

Technical Field

The invention relates to the technical field of medical instruments, in particular to a ligation clip.

Background

With the development and progress of science and technology, minimally invasive surgery gradually begins to be popularized in the medical field due to the advantages of small wound, light pain and quick recovery. During minimally invasive surgery, doctors usually need to temporarily close some tiny ducts in the human body, such as blood vessels, lymphatic vessels, bile ducts, etc., to prevent the phenomenon of tissue fluid leakage during or after the surgery from endangering the life of the patients. For temporary closure of such ducts, ligation is usually performed by using a ligating clip.

The ligation clips are divided into degradable ligation clips and non-degradable ligation clips. Among them, the non-degradable ligating clip is not absorbed by human body, needs to be taken out by secondary operation, easily causes secondary damage to the body of patient, and the degradable ligating clip is popular with doctors and patients because it can be degraded in human body.

At present, the degradable ligature clamp on the market is prepared by macromolecular material basically, but, the ligature clamp that macromolecular material made has the relatively poor problem of mechanical properties, and the clamping-force that causes the ligature clamp easily is less, and can not carry out effectual clamp to the pipeline and close, causes the interstitial fluid to reveal easily, consequently, people are all exploring to remove replacing macromolecular material with metal material, and at present, the research is the most, and the best degradable metal of effect is magnesium alloy promptly.

As shown in fig. 1, the present magnesium alloy ligation clip is the "C" font that sets up to the integral type usually to set up buckle and draw-in groove respectively at the both ends of ligation clip, when going on the ligature to little pipeline, place little pipeline between ligation clip two arms, carry out the lock with buckle and draw-in groove again can, easy operation is convenient.

However, magnesium alloys have poor plasticity at room temperature, and such ligation clips require large plastic deformation of the magnesium alloys during the closing process, so that the ligation clips are very prone to fracture during the closing process.

Disclosure of Invention

Therefore, the invention aims to solve the technical problem of overcoming the defect that the ligation clip in the prior art needs to generate larger plastic deformation during the closing process and is easy to break during the closing process, thereby providing the ligation clip.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

a ligating clip comprising:

the female plug-in body is provided with an access channel and a ligation groove which are communicated, and a micro pipeline can enter along the access channel and is accommodated in the ligation groove;

the male plug-in body is in plug-in fit with the female plug-in body so as to be movably contained in the ligation groove and the access channel, the shape of the head of the male plug-in body is matched with that of the ligation groove, and the head of the male plug-in body is abutted against the side wall of the ligation groove so as to ligate the micro-duct;

and the locking piece is used for locking the male plug body on a preset position of the female plug body so that the head of the male plug body is abutted against the side wall of the ligation groove.

Further, public socket-connector includes parallel arrangement's upper arm and underarm, upper arm and underarm cooperation form the spout, the locking piece includes:

the guide boss is arranged on the access channel, the extending direction of the guide boss is consistent with the extending direction of the access channel, the guide boss can slide along the sliding chute, and the thickness of the guide boss is consistent with the distance between the upper arm and the lower arm;

at least one hasp boss, set up on upper arm and/or the underarm, and be located the one end at public connector head place, the direction boss when sliding in the spout with hasp boss butt is in order to drive upper arm and/or the underarm is in take place elastic deformation in the thickness direction of direction boss, public connector and female connector locking time, hasp boss holding is in the ligature inslot and with the edge butt of direction boss.

Furthermore, the guide bosses are arranged on two opposite side walls of the access passage respectively.

Further, along the direction that the public connector inserts, the thickness of direction boss increases gradually.

Furthermore, along the direction that public connector inserts, the tail end of direction boss is provided with the chamfer.

Furthermore, along the direction that public inserted body inserts, the head end of direction boss also is provided with the chamfer.

Further, the lock catch bosses are provided with two and are respectively and oppositely arranged on the upper arm and the lower arm.

Furthermore, the edge shape of the locking boss is matched with the edge of the guide boss.

Furthermore, along the inserting direction of the male inserting body, an inclined plane which is convenient for the guide boss to extend into is arranged on the upper arm and/or the lower arm.

Furthermore, the male plug-in body and/or the female plug-in body are provided with clamping grooves for clamping the ligation pliers.

The technical scheme of the invention has the following advantages:

1. according to the ligation clip provided by the invention, the ligation clip is divided into the female plug body and the male plug body, when a tiny pipeline is to be ligated, the female plug body and the male plug body are matched and plugged, so that the head of the male plug body is abutted against the ligation groove, and the male plug body and the female plug body are locked by the locking piece.

2. The ligation clamp provided by the invention has the advantages that the locking piece is provided with the guide boss and the lock catch boss, when the tiny pipeline is to be ligated, the tiny pipeline can be placed in the ligation groove, then the guide boss is placed in the sliding groove, the male plug-in body is pushed forwards, when the male plug-in body moves to one side of the female plug-in body, the guide boss is firstly abutted against the lock catch boss, because the distance between the upper arm and the lower arm is consistent with the thickness of the guide boss, under the action of the lock catch boss, the upper arm and/or the lower arm can generate elastic deformation to be matched with the guide boss for clamping, along with the further movement of the male plug-in body, the guide boss is separated from the lock catch boss, at the moment, the upper arm and the lower arm can recover the elastic deformation and are finally formed, the lock catch boss is accommodated in the ligation groove and abutted against the edge of the guide boss, and the head of the male plug-, under the effect of blockking of direction boss, the public socket can't deviate from again in the female socket to realize the locking between public socket and the female socket, simple structure, and locking operation is simple and convenient, and because in the use, the female socket can not take place deformation, and public socket also only need take place slight elastic deformation can, consequently still can avoid the ligature to press from both sides because of the cracked condition of magnesium alloy plasticity is relatively poor under the normal atmospheric temperature condition takes place.

3. According to the ligation clip provided by the invention, the two guide bosses are arranged and are oppositely distributed on two sides of the access channel, so that the insertion fit between the female insertion body and the male insertion body is more stable.

4. According to the ligation clip provided by the invention, the thickness of the guide boss is gradually increased along the insertion direction of the male plug-in body, so that the lock catch boss can be abutted to the guide boss more tightly, the male plug-in body can be further prevented from being separated from the female plug-in body, and the plug-in fit of the female plug-in body and the male plug-in body is more stable.

5. According to the ligation clip provided by the invention, the chamfer is arranged at the tail end of the guide boss, so that on one hand, the entry of a fine pipeline can be facilitated, the situation that the fine pipeline is cut when the fine pipeline is contacted due to the fact that the edge of the guide boss is too sharp is prevented, on the other hand, the guide boss can enter the sliding groove of the male plug-in body conveniently, and therefore the plug-in fit between the male plug-in body and the female plug-in body can be conveniently completed.

6. According to the ligation clip provided by the invention, the chamfer angle is also arranged at the head end of the guide wire boss, so that fine pipelines can be uniformly distributed in the ligation groove conveniently.

7. According to the ligation clip provided by the invention, the two locking bosses are arranged, so that on one hand, the locking stability between the male plug body and the female plug body can be further enhanced, and on the other hand, the elastic deformation quantity required by the male plug body can be uniformly distributed on the upper arm and the lower arm, so that the elastic deformation required by a single wall can be further weakened, and the condition that the male plug body is broken is further prevented.

8. According to the ligation clip provided by the invention, the edge shape of the locking boss is matched with the edge of the guide boss, so that the locking boss can be in surface abutment with the guide boss when being accommodated in the ligation groove, and the locking stability is further enhanced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a prior art ligating clip;

fig. 2 is a schematic view showing the construction of a ligating clip according to example 1 of the invention;

fig. 3 is a schematic structural view of a female connector according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a male plug according to embodiment 1 of the present invention;

FIG. 5 is a schematic view of a ligating clip according to example 2 of the invention;

fig. 6 is a schematic structural view of a ligating clip according to example 3 of the present invention.

Description of reference numerals:

1. a female plug-in body; 11. an access channel; 12. ligating a groove; 13. a guide boss; 2. a male plug-in body; 21. an upper arm; 211. a bevel; 22. a lower arm; 23. a chute; 24. a locking boss; 3. a connecting plate; 4. a clamping groove.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

Referring to fig. 2 to 4, the present embodiment relates to a ligation clip, which includes a female connector 1, a male connector 2 and a locking member. Wherein, set up the discrepancy passageway 11 and the ligature groove 12 of intercommunication each other on the female socket body 1, the fine pipeline can follow discrepancy passageway 11 and enter into ligature groove 12 and holding in ligature groove 12, the cooperation of pegging graft of male socket body 2 and female socket body 1, the movable holding of male socket body 2 is in ligature groove 12 and discrepancy passageway 11, the head shape of male socket body 2 and the shape phase-match of ligature groove 12, the head through male socket body 2 and the lateral wall butt of ligature groove 12, can ligate the fine pipeline of holding in ligature groove 12, the locking piece is used for locking male socket body 2 and female socket body 1, thereby accomplish the ligature action.

In this embodiment, the head shape of the male connector 2 and the shape of the ligation groove 12 are both semicircular, the female connector 1 is formed in a U-shape as a whole, and the male connector 2 is formed in a T-shape as a whole.

Specifically, the male connector 2 includes an upper arm 21 and a lower arm 22 disposed in parallel, the upper arm 21 and the lower arm 22 cooperate to form a sliding slot 23, in this embodiment, the widths of the upper arm 21 and the lower arm 22 are the same as the width of the access passage 11, and the locking member includes a guide boss 13 and a locking boss 24. The guide boss 13 is fixed on the female plug-in body 1 and is positioned on the access passage 11, the extension direction of the guide boss 13 is consistent with that of the access passage 11, the guide boss 13 can slide along the sliding groove 23, and the thickness of the guide boss 13 is consistent with that of the sliding groove 23; the hasp boss 24 is provided with at least one, and set up respectively on upper arm 21 and/or underarm 22, and hasp boss 24 is located the one end at public socket 2 head place, thereby direction boss 13 can take place elastic deformation in the thickness direction of direction boss 13 with hasp boss 24 butt drive upper arm 21 and/or underarm 22 when sliding in spout 23, when public socket 2 with female socket 1 locking, hasp boss 24 holding in ligature inslot 12 and with the edge butt of direction boss 13.

When the tiny pipeline is to be ligated, the tiny pipeline is placed in the ligation groove 12, then the guiding boss 13 is placed in the sliding groove 23, and the male insertion body 2 is pushed forward, when the male insertion body 2 moves to the side where the female insertion body 1 is located, the guiding boss 13 is firstly abutted against the locking boss 24, because the distance between the upper arm 21 and the lower arm 22 is consistent with the thickness of the guiding boss 13, under the action of the locking boss 24, the upper arm 21 and/or the lower arm 22 can generate elastic deformation to cooperate with clamping of the guiding boss 13, along with the further movement of the male insertion body 2, the guiding boss 13 is separated from the locking boss 24, at this time, the upper arm 21 and the lower arm 22 can recover the elastic deformation, and finally formed, the locking boss 24 is accommodated in the ligation groove 12 and abutted against the edge of the guiding boss 13, the head of the male insertion body 2 is abutted against the groove wall of the ligation groove 12, under the effect of blockking of direction boss 13, public socket body 2 can't deviate from again from female socket body 1 to realize the locking between public socket body 2 and the female socket body 1, simple structure, and locking operation is simple and convenient, and because in the use, female socket body 1 can not take place deformation, and public socket body 2 also only need take place slight elastic deformation can, consequently still can avoid the ligature to press from both sides because of the poor cracked condition of plasticity of magnesium alloy under the normal atmospheric temperature condition takes place.

In this embodiment, the lock catch bosses 24 are provided with two, and set up respectively on upper arm 21 and lower arm 22, set up like this, on the one hand, can further strengthen the locking degree of stability between public socket body 2 and the female socket body 1, on the other hand, can evenly distribute the elastic deformation amount that public socket body 2 needs to take place to upper and lower arm 22 on to can further weaken the elastic deformation that single wall needs to take place, further prevent that the condition of public socket body 2 fracture from taking place.

It should be noted that, in order to adjust the connection strength between the upper arm 21 and the lower arm 22, in the present embodiment, the connecting plate 3 is further disposed between the upper arm 21 and the lower arm 22, and the connection strength between the upper arm 21 and the lower arm 22 can be adjusted by adjusting the length of the connecting plate 3, so that the upper arm 21 and the lower arm 22 can be elastically deformed and have a certain connection strength at the same time.

In this embodiment, in order to make the inserting and connecting of the female connector 1 and the male connector 2 more stable, the two guiding bosses 13 are also provided, and the two guiding bosses 13 are respectively provided on two opposite side walls of the access passage 11.

Wherein, for the locking compactness of further reinforcing public socket-connector 2 and female grafting, in the male socket-connector 2 male direction of edge, the thickness that will lead boss 13 sets up to the crescent, set up like this, gradually insert the in-process to female socket-connector 1 when public socket-connector 2, the elastic deformation that upper arm 21 and underarm 22 take place can crescent, make hasp boss 24 can have great resilience and kick-back, thereby it is tighter to make hasp boss 24 can with the butt of direction boss 13, and then can further prevent that the circumstances of deviating from in the female socket-connector 1 from taking place for public socket-connector 2.

In this embodiment, in the male direction of pegging graft 2, tail end at direction boss 13 is provided with the chamfer, the tail end that leads boss 13 promptly is the circular arc transition, set up like this, the entering of slight pipeline of can being convenient for on the one hand, prevent to cut the condition of slight pipeline when contacting slight pipeline and take place because of direction boss 13 edge is too sharp, on the other hand, can be convenient for lead in boss 13 gets into spout 23 of male pegging graft 2, thereby be convenient for realize accomplishing the grafting cooperation between male pegging graft 2 and the female pegging graft 1.

In order to better distribute the fine canals evenly in the ligation groove 12, in this embodiment, a chamfer is also provided at the tip of the guide boss 13 in the direction of insertion of the male connector 2.

In addition, in this embodiment, the shape of the edge of the locking boss 24 is matched with the shape of the edge of the guide boss 13, so that the locking boss 24 can be in surface abutment with the guide boss 13 when being accommodated in the ligation groove 12, thereby further enhancing the locking stability.

In order to facilitate the guide boss 13 to extend into the slide groove 23, in the present embodiment, the inclined surfaces 211 are provided on both the upper arm 21 and the lower arm 22, and the inclined surfaces 211 on the upper arm 21 and the lower arm 22 cooperate to form a horn shape with an opening direction facing the ligation groove 12. In other embodiments, the inclined surface 211 may be provided only on the upper arm 21 or the lower arm 22.

In this embodiment, in order to facilitate the clamping of the ligation forceps to the male plug body 2 and the female plug body 1, the clamping grooves 4 are formed in the male plug body 2 and the female plug body 1, and the clamping grooves 4 are wedge-shaped and suitable for the ligation forceps to extend into the clamping.

In the present embodiment, the male plug 2 and the female plug 1 are integrally formed of magnesium or magnesium alloy.

The principle of use of this embodiment is generally as follows:

divide into female socket joint body 1 and two parts of public socket joint body 2 through pressing from both sides the ligature, when will ligature the slight pipeline, only need to peg graft female socket joint body 1 with the cooperation of public socket joint body 2, make the head and the ligature groove 12 butt of public socket joint body 2, and utilize the locking piece with public socket joint body 2 with female socket joint body 1 locking can, at the in-process to the slight pipeline ligature, need not the ligature and press from both sides the emergence deformation, degradable magnesium alloy non-deformable's characteristics has successfully been avoided, thereby can carry out effectual clamp to the slight pipeline and close.

Example 2

As shown in fig. 5, the present embodiment relates to a ligating clip, and is different from embodiment 1 in that the head portion of the male insertion body 2 is formed in an "M" shape and the ligating groove 12 is formed in a "W" shape.

Example 3

As shown in fig. 6, the present embodiment relates to a ligating clip, and is different from embodiment 1 in that the head portion of the male insertion body 2 and the ligating groove 12 are both formed in a wave shape.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A ligating clip, comprising:

the female plug-in body (1) is provided with an access channel (11) and a ligation groove (12) which are communicated, and a micro pipeline can enter along the access channel (11) and is accommodated in the ligation groove (12);

the male plug-in body (2) is in plug-in fit with the female plug-in body (1) to be movably contained in the ligation groove (12) and the access channel (11), the shape of the head of the male plug-in body (2) is matched with that of the ligation groove (12), and the head of the male plug-in body (2) is abutted against the side wall of the ligation groove (12) to ligate a fine pipeline;

and a locking member for locking the male connector (2) at a predetermined position of the female connector (1) so that the head of the male connector (2) abuts against the side wall of the ligation groove (12).

2. The ligating clip of claim 1, wherein the male connector (2) comprises an upper arm (21) and a lower arm (22) arranged in parallel, the upper arm (21) and the lower arm (22) cooperating to form a chute (23), the locking element comprising:

the guide boss (13) is arranged on the access channel (11), the extending direction of the guide boss is consistent with the extending direction of the access channel (11), the guide boss (13) can slide along the sliding groove (23), and the thickness of the guide boss (13) is consistent with the distance between the upper arm (21) and the lower arm (22);

at least one hasp boss (24), set up on upper arm (21) and/or lower arm (22), and be located the one end at public socket (2) head place, direction boss (13) slide in spout (23) when with hasp boss (24) butt is in order to drive upper arm (21) and/or lower arm (22) are in take place elastic deformation on the thickness direction of direction boss (13), public socket (2) and female socket (1) locking time, hasp boss (24) holding is in ligature groove (12) and with the edge butt of direction boss (13).

3. The ligating clip of claim 2, wherein said guide projections (13) are provided in two and respectively on opposite side walls of said access channel (11).

4. The ligating clip of claim 2 or 3, wherein the thickness of the guide boss (13) is gradually increased in a direction in which the male connector body (2) is inserted.

5. The ligating clip according to claim 2 or 3, characterized in that the tail end of the guiding boss (13) is provided with a chamfer in the direction of insertion of the male plug body (2).

6. The ligating clip of claim 5, wherein the head end of the guiding projection (13) is also provided with a chamfer in the direction of insertion of the male connector body (2).

7. The ligating clip of claim 2, wherein there are two locking bosses (24) oppositely disposed on the upper arm (21) and the lower arm (22), respectively.

8. The ligating clip of claim 2 or 7, wherein the edge of the locking boss (24) is shaped to match the edge of the guiding boss (13).

9. The ligating clip of claim 2, wherein a slope (211) for facilitating the insertion of the guide projection (13) is provided on the upper arm (21) and/or the lower arm (22) in the direction of insertion of the male connector (2).

10. The ligating clip of claim 1, wherein the male plug body (2) and the female plug body (1) are both provided with a clamping groove (4) for clamping the ligating clip.