WO2018169120A1 - Jaw unit having clip separation and deformation prevention structure, and applier including same - Google Patents

Abstract

The present invention relates to clip jaws having a clip separation and deformation prevention structure, and an applier including the same and, more specifically, to clip jaws having a clip separation and deformation prevention structure, and a clip applier including the same, wherein a structure for clip fixing is formed to prevent a clip from being separated therefrom and at the same time prevent the clip from being deformed. The jaw unit having a clip separation and deformation prevention structure, and the applier including the same, comprise: a first sub jaw (10) to which one end of a clip (50) is fixed; a second sub jaw (20) to which the other end of the clip (50) is fixed; and a main member (40) for applying movement pressure to the clip (50), wherein a fixing hook unit (13) is formed at the end of the first sub jaw (10).

Description

Jaw unit with clip release and strain relief structure and apple liar

The present invention relates to a clip jaw of the clip departure and deformation prevention structure and the apple liar having the same, and in particular, the clip separation and deformation to form a structure for fixing the clip to prevent the departure of the clip while preventing the deformation of the clip at the same time A clip jaw of a preventive structure and a clip appler having the same.

Medical clips may be used for gripping or excision of human organs extending in the longitudinal direction, such as blood vessels or caecum, during surgical procedures inside the human body. Clips are used, for example, to grasp, ligation or hemostatic the cecum or blood vessels during appendectomy. Such medical clips may be made of, for example, elastic metal or polymer materials. Multiple clips may be placed in turn on the Apple Liar for ligation of parts of the body, such as blood vessels or parts of the caecum, during surgery. Apple Liar may be sterilized or sterilized prior to use of the clip or may be left for extended periods of time. When the apple lier is in such a state, physical properties such as elasticity of the clip disposed therein may be changed, thereby causing the clip to be detached in the process of being transferred to and used in the jaw unit disposed at the end of the apple liar. In addition, since a plurality of clips are continuously disposed in the Apple Liar's supply tube, the clips placed at the rear may change physical properties over time. Therefore, there is a need for a clip appler that maintains the physical characteristics of the clip before use and can be used stably in the surgical procedure.

US Pat. No. US 7,316,696 B2 is a polymer having first and second curved legs that are joined at the ends by a flexible hinge region and moveable from an open position to a closed position to grip blood vessels between the curved inner facing surfaces. Disclosed is a surgical clip of material.

US Pat. No. 7,052,504 B1 discloses a surgical clip appler consisting of a drive device, a pair of facing jaws and an extension assembly disposed therebetween. The prior art is operated by the drive device to continuously move the clip through the extension assembly such that the clip drive device disposed in the extension assembly is coupled to the jaw, the clip control part is disposed at the end of the extension assembly, the clip control part Includes a first, second and third clip control surface, the first clip control surface contacting the first end of the clip to cause the clip to rotate about the first end, and the second and third control assertions Disclosed is a self-feeding surgical clip appler that receives an end of a clip before the clip is moved to engage.

US 2014/0052157 A1 shows a handle portion; A body extending from the handle portion; A plurality of surgical clips disposed within the body; And a device for application of a surgical clip for body tissue consisting of a jaw unit installed adjacent to the end of the body.

A plurality of clips can be inserted into the apple liar and placed in the jaw unit in turn to be used for ligation of the human body part. It can be stored for a long time in a storage case before being inserted into Apple Liar and sterilized at high temperature after being inserted. In addition, the elasticity of the clip may change during storage or sterilization, which may cause the clip to be removed from the jaw unit in preparation for use or for use for ligation, which may interfere with surgery. Therefore, there is a need to develop a clip jaw unit that prevents the slipping of the clip due to such slip and the deformation of the clip due to high temperature sterilization and long term storage.

The present invention is to solve the problems of the prior art has the following object.

SUMMARY OF THE INVENTION An object of the present invention is to provide a jaw unit of a slip preventing structure for a clip apple liar having a slip preventing groove formed therein to prevent the clip from being detached from the apple liar and a clip apple li having the same.

According to a preferred embodiment of the present invention, a jaw unit and an apple liar having a clip detachment and deformation prevention structure include: 1 sub jaw to which one end of the clip is fixed; 2 sub jaws in which the other end of the clip is fixed; And a main member applying a moving pressure to the clip, wherein a fixed hook unit is formed at the end of the one sub jaw.

According to another suitable embodiment of the present invention, a guide unit is formed on the inner surface of the front portion of the two sub-joins to guide the movement of the clip.

According to another suitable embodiment of the present invention, the fixing unit has a hook structure of separating branches extending parallel to each other.

According to another suitable embodiment of the present invention, an operating module; An induction member extending from the operating module into a tube shape; A main member disposed inside the guide member to fix the clip at a predetermined position; And a jaw unit composed of one sub jaw and two sub jaws while being operated by an operation module, wherein an end fixing unit for fixing a clip is formed in the first sub jaw or the second sub jaw.

According to another suitable embodiment of the present invention, when the main member is moved forward by the operation of the operation module, the separation interval between the 1 sub jaw and the 2 sub jaws is increased.

The jaw unit according to the present invention allows the detachment of the clip in the ligation process while at the same time the elasticity of the modified clip in the sterilization or storage process is restored. In addition, while the clip appler according to the present invention prevents clip detachment, at the same time, the elasticity of the clip is restored by increasing the separation interval of the clip in the ligation process.

1 shows an embodiment of the operating structure of a jaw unit according to the invention.

2 shows an embodiment of a jaw unit according to the invention.

3a and 3b show an embodiment of a unit for the operation of the jaw unit according to the invention.

4 shows an embodiment of a clip operated by a jaw unit according to the invention.

5A illustrates an embodiment of a clip appler according to the present invention, and FIG. 5B illustrates an embodiment in which a clip is operated by the clip appler.

Hereinafter, the present invention will be described in detail with reference to the embodiments set forth in the accompanying drawings, but the embodiments are provided for clarity of understanding and the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, and thus are not repeatedly described unless necessary for understanding of the invention, and well-known components are briefly described or omitted. It should not be understood to be excluded from the embodiment of.

1 shows an embodiment of the operating structure of a jaw unit according to the invention.

Referring to FIG. 1, a jaw unit for a clip appler includes one sub jaw 10 in which one end of a clip 50 is fixed; Two sub jaws 20 to which the other end of the clip 50 is fixed; And a main member 40 for applying a moving pressure to the clip 50, and a fixed hook unit 13 is formed at the end of the one sub jaw 10.

The jaw unit according to the invention can be applied to a medical clip of various specifications and can be applied to a medical clip consisting of two branch branches, for example, maintained at a constant angle. Medical clips may be used for ligation of blood vessels or tissues in laparotomy or laparoscopic surgery and may be made of metal or polymer such as titanium. The clip applied to the jaw unit according to the invention can have various sizes made of any material. The jaw unit may also form part of the clip appler, such that a plurality of clips disposed on the appler are in turn coupled to and fixed to organs or blood vessels inside the human body for ligation.

The jaw unit may consist of one sub jaw 10 and two sub jaws 20 arranged to face each other. Specifically, the 1 sub jaw 10 and the 2 sub jaw 20 may be made of a plate structure facing each other as a whole, and fixed to or separated from the inner portion facing the clip by approaching or away from each other based on one axis Can be made into a structure. Relative movement of the 1 sub jaw 10 and the 2 sub jaw 10 can be made according to methods known in the art.

One end of the jaw unit may be coupled to one end of the guide member 30 and may be operated by operation of the operation module. An end portion of the main member 40 disposed inside the induction member 30 may be disposed between the first sub jaw 10 and the second sub jaw 20 to move forward or backward.

The first sub jaw 10 includes one coupling unit 11 whose one end is coupled to the end of the guide member 30; 1 fixed unit 12 extending from the other end of the coupling body 11; And a fixed hook unit 13 formed at an end of the fixed unit 12. The two sub jaws 20 have two coupling units 21 whose one end is coupled to the induction member 30 together with the one coupling unit 11; An induction unit 22 extending from the other end of the two coupling units 21; And a guide unit 23 formed on the induction unit 22.

The plurality of clips 50 may be arranged inside the guide member 30 in an aligned form and may be sequentially discharged to the jaw unit by the operation of the operation module. As shown in (b) of FIG. 1, one end portion of the clip 50 may be fixed to the fixing hook unit 13 formed at the end portion of the fixing unit 12. In addition, the other end of the clip disposed to face one end of the clip 50 may be fixed to the guide unit 23 formed in the guide unit 22. The fixed hook unit 13 may be made of a structure of a separate branch formed with a hook structure at the end. The guide unit 23 may be a groove structure formed along the longitudinal direction on the inner surface of the guide unit 22. The width of the grooves may be sized to accommodate the outer portion of the clip 50. When the clip is fixed to the jaw unit, the end portion of the main member 40 can be moved forward while applying forward-facing pressure to the rear portion of the clip 50. The two front parts of the clip 50 are thereby separated at a large angle, whereby the clip 50 is tightly adhered to the 1 sub jaw 10 and the 2 sub jaws 20, whereby the clip 50 is brought into the jaw unit. At the same time the elasticity of the clip 50 can be restored while preventing it from being separated from. Since the clip 50 is guided along the guide unit 23, both ends of the first and second sub-joins 10 and 20 are engaged, and the clips 50 are engaged with each other and organs or blood vessels inside the human body may be ligated. .

In the following, while the separation of the clip 50 in the ligation process is prevented, elastic recovery is possible and at the same time the structure of the jaw unit for inducing the movement of the clip 50 in the ligation process will be described in detail.

2 shows an embodiment of a jaw unit according to the invention.

2 (a) shows an embodiment of the side and the internal structure of the first sub-join 10, Figure 2 (b) shows an embodiment of the side and the internal structure of the 2 sub-join 20 will be.

Referring to FIG. 2A, the one sub jaw 10 includes one and two sub coupling units 11a and 11b extending in a plate shape while facing each other; One and two fastening portions 15a and 15b formed at one end of each of the one and two sub coupling units 11a and 11b; A fixed body 121 to which each of the sub coupling units 11a and 11b is connected; And fixed hook units 13 connected to the first and second sub coupling units 11a and 11b while forming both edge wall surfaces 121a and 121b of the fixed body 121. The two sub-joins 20 include three and four sub-join units 21a and 21b extending to face each other with the one and two sub-join units 11a and 11b; 3, 4 fastening portions 24a, 24b which are engaged with the 1, 2 fastening portions 15a, 15b while extending from one end of each of the 3, 4 sub coupling units 21a, 21b; And guide hooks 221 extending in the shape of hooks while connecting the side walls 22a and 22b and the side walls 22a and 22b extending from the other ends of the 3 and 4 sub coupling units 21a and 21b. It may be made of a guide unit 23. The reinforcing grooves 122 and 232 protruding outward along the middle portion in the longitudinal direction may be formed in the fixing bodies 121 and the guide grooves of the 1 and 2 sub jaws 10 and 20 according to the design structure.

The first and second fastening portions 15a and 15b and the third and fourth fastening portions 24a and 24b are coupled to each other to form a center of rotation, whereby the front portions of the first and second sub-joins can be separated or engaged with each other. Both opposite ends of the clip may be fixed to the fixed hook unit 13 and the guide hook 221, respectively. The fixed hook unit 13 may have a structure in which the first and second sub coupling units 11a and 11b extend while forming both edge wall surfaces 121a and 121b of the fixed body 121, respectively. The fixed hook unit 13 may be in the shape of a pair of separating branches extending in parallel to each other, and a rectangular separating gap may be made between the separating branches. The ends of each separating branch may be inwardly hooked or hooked. The guide unit 23 connects the side walls 22a and 22b and the side walls 22a and 22b, which are formed by extending the 3 and 4 sub coupling units 21a and 21b, to form a front wall and at the same time inwards. It may be formed by a guide hook 221 extending in the shape of a hook. Due to this structure, the guide unit 23 may have a groove structure in which the 3 and 4 sub coupling units 21a and 21b are open.

The fastening portions 15a, 15b, 24a, 24b of the first and second sub jaws 10, 20 can be inserted inside one end of the guide member described above and operated in combination with the main member or shooting unit.

3a and 3b show an embodiment of a unit for the operation of the jaw unit according to the invention.

Referring to FIG. 3A, the main member 40 may be coupled to one end of the push unit 60, and the main member 40 may be disposed in the hollow tubular guide member 30. The shooting unit 70 may be coupled to the inside of the main member 40.

The push unit 60 may have a function of moving the clip forwards, the jaw unit is detached, or the jaw unit is engaged while being moved back and forth according to the operation of the operation module described below. Push unit 60 is a coupling cylinder 61 is coupled to one end of the main member 40; A position fixing unit 62 which is rotated as necessary while fixing the coupling cylinder 61 to a predetermined position; And an actuating connection unit 63 connected to the actuation module so as to be connected to the position fixing unit 62 to rotate the position fixing unit 62 or to move the coupling cylinder 61 forward or backward. The induction member 30 may accommodate the main member 40 which becomes a rectangular tube shape as a whole inside the receiving body 31 having a hollow tube shape. In addition, one end of the jaw unit is accommodated in the accommodating portion 32 which forms one end of the accommodating body 31, and may be coupled to one end of the main member 40.

The main member 40 may be a hollow tube shape having an overall rectangular cross section, and an alignment body 41 in which a plurality of clips are arranged in sequence; An actuating connecting portion 42 engaged with the engaging cylinder 61 through one end of the guide member 30; And an engagement pressing portion 43 which is positioned between the one and two sub jaw units penetrating the other end portion of the guide member 30 and whose end portion is in contact with the rear portion of the clip. A shooting unit 70 may be disposed inside the main member 40 to linearly discharge each clip to the jaw unit in turn.

Referring to FIG. 3B, the main member 40 may have a hollow tube shape having a rectangular cross section as a whole, and the coupling pressing portion 43 may have a structure in which a jaw unit is coupled. A pair of pressing projections 431 may be formed to face each other at the end of the engaging pressing portion 43, the pressing projection 431 may have a function of contacting the rear portion of the clip to move the clip forward. have.

The lower part of FIG. 3B shows both ends of the shooting unit 70, and the shooting unit 70 may have a plate shape extending linearly as a whole. The clip stopper 711 is continuously formed in the shooting body 71 disposed at the portion where the clips aligned inside the main member 40 are positioned, so that the clip is held at a predetermined position and moves forward and backward of the shooting unit 70. This should be limited.

The shooting unit 70 may be coupled to the engagement cylinder 61 by an operative engagement portion 72 consisting of an engagement fold ring 722 and an engagement hole 721 formed at one end of the shooting body 71. A push unit 74 is formed at the other end of the shooting body 71 so that the clip located in front of the main member 40 is moved to the jaw unit.

The main member 40 or the shooting unit 70 can be made in various structures and the present invention is not limited to the embodiments shown.

4 shows an embodiment of a clip operated by a jaw unit according to the invention.

Referring to FIG. 4, the clip 50 includes one extension body 51 extending in one direction; Two extension bodies 52 which are connected to the first extension body 51 in a bent shape and extend while forming a predetermined angle; An extension through hole 521 formed at a bent connection portion between the first extension body 51 and the second extension body 52; An insertion fixing protrusion 54 which is formed at the end of the first extension body 51 and extends in a shape perpendicular to the extension direction of the first extension body 51; 2 is formed in a ring shape at the end of the extension body 52, the fixing hook 55 for inserting fixing projections 54 are inserted and fixed; And one and two balanced fixing portions 541 and 551 formed in the one and two extension bodies 51 and 52. Additionally, the clip 50 may include one fixed plane protrusion 56 and two fixed plane protrusions 57 formed on the inner surfaces of the first extension body 51 and the second extension body 52 facing each other.

The clip 50 may be made of synthetic resin or metal material, but is not limited thereto, and may be made of various materials having elasticity. The first extension body 51 and the second extension body 52 may have a rectangular cross section and extend in a curved shape with a large radius of curvature, and the first extension body 51 and the second extension body 52 may be V-shaped as a whole. Or it may be an integral structure having a U-shape. Extension through hole made in the shape of C along the extension direction so as to extend to the 1 extension body 51 and the 2 extension body 52 respectively at the boundary surface or the bent portion of the 1 extension body 51 and the 2 extension body 52. 521 reduces the overall weight of the clip 50 and at the same time allows the 1st extension body 51 and the 2nd extension body 52 to be bent in an easily adjacent direction or away from the boundary portion.

Insertion fixing protrusion 54 may be formed at the end of the first extension body 51, it may be made of a structure to form a sharp end portion while extending the lower portion of the first extension body 51 inclined. The fixing hook 55, which is made of a structure in which the insertion fixing protrusion 54 is received and fixed, becomes inverted C shape and forms a sharp end portion, and the inner surface is in contact with the outer surface of the insertion fixing protrusion 54. Can be made.

The first balance fixing part 541 may have a function of being fixed at a predetermined position while preventing left and right shaking of the insertion fixing protrusion 54 fixed by the fixing hook 55. The two balance fixing portions 551 may have a structure that prevents deformation of the clip 50, and the first and second extension bodies 51 and 52 are secured in the ligation process while the clip 50 is stably fixed to the jaw unit. Make sure that it is located in a stable position. 1, the balance fixing portion 551 may be a cylindrical shape extending in a direction perpendicular to the extending direction of the two extending body 52, it may be disposed adjacent to the fixing hook (55). In addition, the balance fixing parts 541 and 551 may have a function in which a part of the first and second extension bodies 51 and 52 protrudes to the outer surfaces thereof so that the clip 50 can be easily separated from the jaw unit.

The inner surface of the first extension body 51 may be planar, and are disposed to face the inner surface of the two extension bodies 52, and the two inner surfaces may be in contact with each other in the ligation process. 1 fixed plane projections 56 formed on the inner surface of the first extension body 51 may each be a projection of a square pillar shape, the inner surface may be disposed on both sides with respect to the center line that is divided into two equally in the longitudinal direction. Each part may be disposed at regular intervals. And the 1 fixed plane projections 56 disposed at different parts may be staggered from each other, and the gap between the 1 fixed plane projections 56 disposed adjacent to each other in the longitudinal direction is the cross-sectional area of the 1 fixed plane projection 56. It may be equal to or greater than the cross-sectional area of the one fixed plane projection 56. The two fixed plane protrusions 57 arranged on the inner surface of the second elongated body 52 may be formed in the same or similar manner as the one fixed plane protrusion 56, and the two fixed plane protrusions 57 may be the one fixed plane protrusions. It may be formed at a position corresponding to between 56. The ligation is stably achieved by the arrangement structure of the 1 and 2 fixed plane protrusions 56 and 57.

The clip 50 may be a hemo clip for ligation of blood vessels, but is not limited thereto, and may be applied to ligation of various sites, and may be made of various structures using various materials.

5A illustrates an embodiment of a clip appler according to the present invention, and FIG. 5B illustrates an embodiment in which a clip is operated by the clip appler.

Referring to FIG. 5A, the clip appler 100 includes an operation module 103; An induction member 30 extending in the shape of a tube from the operation module 103; A main member 40 disposed inside the guide member 30 to fix the clip at a predetermined position; And a jaw unit, which is operated by the operation module 103 and comprises a first sub jaw 10 and a second sub jaw 20, and the fastening of the clip to the first sub jaw 10 or the second sub jaw 20 is performed. An end fixing unit is formed.

The actuation module 103 may be made of various structures in which the actuation wheel 102 and the actuation trigger 104 can be combined while serving as a handle. An actuation wheel 102 may be coupled to one portion of the actuation module 103 and an actuation trigger 104 may be coupled to the other portion of the actuation module 103. The actuation wheel 102 may be made of a conical structure and the induction member 30 may be coupled to the actuation wheel 102. As described above, the jaw unit may be coupled to one end of the guide member 30.

A plurality of clips may be disposed inside the guide member 30, for example, the length of the guide member 30 may be 230 to 310 mm, and 9 to 20 clips may be disposed inside. Depending on the number or size of the clips, the diameter of the guide member 30 or the length of the guide member 30 may be appropriately adjusted.

Referring to (a) of FIG. 5B, when the actuation trigger 104 is primarily operated, the front portion of the first sub jaw 10 and the second sub jaw 20 may be separated and one clip may be positioned in the jaw unit. Becomes Again actuating the trigger 104 again causes the shooting unit to move forward as shown in (b) of FIG. 5B so that the clip 50 is positioned between the 1 sub jaw 10 and the 2 sub jaw 20. do. In this state, when the operation trigger 104 is moved in the third direction, the first part of the main member 40 presses the rear part of the clip 50 so that the clip is moved along the guide guide while the first sub jaw 10 and the second part are moved. The separation interval of the sub jaw 20 is increased. In such a state, the clip is prevented from being separated from the clip 50 by the clip fixing structure formed in front of the 1 sub jaw 10 and the 2 sub jaw 20. In the state where the front portion of the first sub jaw 10 and the second sub jaw 20 is completely separated, the blood vessel is positioned in the clip 50. In addition, when the operation trigger 104 is operated in the fourth order, the main member 40 is moved to the rear, and at the same time, the first sub jaw 10 and the second sub jaw 20 are engaged with each other and the insertions formed at both ends of the clip 50. The fixing protrusion and the fixing hook are combined with each other. As a result, the blood vessels can be ligated to become hemostatic, and the first sub-join 10 and the second sub-join 20 are in the state shown in FIG. The operation trigger 104 is restored to the initial position again and the jaw unit is separated from the clip 50 engaged with each other in this state by separating the front part of the first sub jaw 10 and the second sub jaw 20 by the first operation. Are separated. The jaw unit can then be moved again for ligation of the part.

The clip appler according to the present invention can be operated in various ways and the present invention is not limited to the presented embodiments.

The jaw unit according to the present invention allows the detachment of the clip in the ligation process while at the same time the elasticity of the modified clip in the sterilization or storage process is restored. In addition, while the clip appler according to the present invention prevents clip detachment, at the same time, the elasticity of the clip is restored by increasing the separation interval of the clip in the ligation process.

Although the present invention has been described in detail above with reference to the presented embodiments, those skilled in the art may make various modifications and modifications without departing from the technical spirit of the present invention with reference to the presented embodiments. . The invention is not limited by the invention as such variations and modifications but only by the claims appended hereto.

The jaw unit according to the present invention allows the detachment of the clip in the ligation process while at the same time the elasticity of the modified clip in the sterilization or storage process is restored.

Claims (5)

One sub jaw 10 to which one end of the clip 50 is fixed; Two sub jaws 20 to which the other end of the clip 50 is fixed; And A main member 40 which applies a moving pressure to the clip 50, Jaw unit for a clip apple liar, characterized in that the fixed hook unit (13) is formed at the end of the one sub jaw (10). The jaw unit according to claim 1, wherein a guide unit (23) is formed on the inner surface of the front portion of the two sub jaws (10) to guide the movement of the clip (50). The jaw unit according to claim 1, wherein the fixing unit (13) has a hook structure of a separating branch extending in parallel to each other. Operating module 103; An induction member 30 extending in the shape of a tube from the operation module 103; A main member 40 disposed inside the guide member 30 to fix the clip at a predetermined position; And A jaw unit which is actuated by the actuating module 103 and consists of a 1 sub jaw 10 and a 2 sub jaw 20, Clip apple liar, characterized in that the end fixing unit for fixing the clip is formed in the 1 sub jaw (10) or 2 sub jaw (20). The clip apple liar of claim 4, wherein the separation distance between the first sub jaw (10) and the second sub jaw (20) increases when the main member (40) moves forward by the operation of the operating module (103).

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