A purse string assembly adaptable to a laparoscopic stapler

Abstract

The present application relates to a kind of purse assembly that can be adapted on endoscope anastomat, comprising: a component rod, the cutter part and sewing part are provided on the component rod and can be reciprocated along the direction of axis;The cutter part and sewing part can be deformed and set;A swing pivot block, swing setting in the end of the component rod, the component rod can drive the pivot block to reciprocate and swing;A lower clamp, fixed on the swing pivot block, for clamping tissue;And an upper clamp, rotatably set on the lower clamp, the component rod can drive the upper clamp to rotate and close to the lower clamp and clamp tissue.The present application can be adapted and used with endoscopic linear anastomat, also can be operated under the mirror through endoscopic channel, also can realize left and right swing, and lock in any position within preset angle range.

Description

Technical Field

[0001] This invention relates to the field of surgical instrument technology, and in particular to a purse-string assembly adaptable to a laparoscopic stapler. Background Technology

[0002] Currently, there is no suitable purse-string forceps device for laparoscopic surgery. The placement of the anvil head requires manual suturing of the purse-string under laparoscopy, which makes the surgery more difficult, complicated, and time-consuming.

[0003] In view of this, the present invention provides a purse-string assembly that can be adapted to a laparoscopic anastomosis device. It can be used in conjunction with a laparoscopic linear anastomosis device and can perform laparoscopic purse-string operations through the laparoscopic channel. It can achieve left and right swing angles and lock at any position within a preset angle range to reduce patient pain and reduce the workload of doctors. Summary of the Invention

[0004] The purpose of this invention is to provide a purse-string assembly that is compatible with laparoscopic linear anastomosis devices, can be used for laparoscopic purse-string operations through the laparoscopic channel, and can be tilted left and right and locked at any position within a preset angle range.

[0005] To achieve the above technical solution, the technical solution of the present invention is as follows: a purse-string assembly adaptable to a laparoscopic stapler, comprising:

[0006] A component rod is provided with a cutting component and a sewing component that can reciprocate back and forth along the axial direction; both the cutting component and the sewing component can be deformably configured.

[0007] A swing pivot block is oscillatingly mounted at the end of the component rod, and the component rod can drive the swing pivot block to reciprocate slightly.

[0008] A clamp, fixed to the pivot block, is used to clamp tissue; and

[0009] An upper clamp is rotatably mounted on the lower clamp, and the component rod can drive the upper clamp to rotate toward the lower clamp to clamp the tissue;

[0010] Wherein: when the upper clamp rotates towards the lower clamp to clamp the tissue, the cutting component moves along the upper clamp. 、 The lower clamp deforms and moves to remove tissue while simultaneously moving the upper clamp. 、 The lower clamps press the tissue together on both sides; the sewing component then pushes out to complete the sewing of the tissue.

[0011] Further, the assembly rod further comprises a first rod base provided with long strip-shaped protrusions and hemispherical protrusions; the first rod base is detachably provided with a second rod base; adjacent first rod base and second rod base form a swing driving groove; the swing driving groove is swingably provided with a swing rod; the swing rod is swingably installed on the hemispherical protrusion, and the other end is hingedly connected with the swing angle pivot block; the swing rod can drive the swing angle pivot block to swing by a small angle; the first rod base and the second rod base form an active cavity; the cutter part and the sewing part are parallel and movably arranged inside the active cavity along the axis; the first rod base and the second rod base are respectively detachably provided with a connecting piece; the connecting piece is fixed on the first rod base and the second rod base through a ring-shaped hollow shell and an elastic locking seat; one end of the connecting piece is rotatably connected with the swing angle pivot block.

[0012] Further, the cutter part comprises a flexible metal cutting knife rod; one end of the cutting knife rod is inserted into the inside of the swing angle pivot block; the other end of the cutting knife rod is detachably provided with a cutting knife;

[0013] The sewing part comprises a flexible metal top pin rod arranged in parallel; one end of the top pin rod passes through the swing angle pivot block, and the other end is clamped with a knife rod tail seat; the top pin rod is displaced forward and backward; the knife rod tail seat is detachably installed at the end of the cutting knife rod;

[0014] One end of the first rod base and the second rod base is arc-recessed.

[0015] Further, the cutting knife rod comprises a first cutting piece, a second cutting piece and a fixed elastic piece arranged in mirror image; adjacent first cutting piece and second cutting piece are connected and inserted between the fixed elastic piece; the first cutting piece and the second cutting piece are provided with a strong pulling part;

[0016] The cutting knife is provided with an I-beam, one side of the I-beam is provided with an arc-recessed cutting knife part, and the other side is provided with an inner groove trapezoidal connecting part; the I-beam is provided with an inclined chamfer at the upper and lower ends;

[0017] One end of the top pin rod is detachably provided with a purse needle; adjacent purse needles are connected together by a suture; the purse needle is movably inserted into the upper clamp.

[0018] Further, the top pin rod is provided with a wire groove at the end, and adjacent wire grooves are oppositely arranged, so that the suture is connected together by the wire groove purse needle.

[0019] Further, the swing angle pivot block comprises an upper swing angle seat and a lower swing angle seat; the upper swing angle seat and the lower swing angle seat are detachably connected; an eight-shaped moving slide channel is formed between the upper swing angle seat and the lower swing angle seat; the cutting knife rod is slidably inserted into the moving slide channel; the upper swing angle seat is rotatably connected with the upper clamp and the lower clamp through the clamp pivot; the upper clamp and the lower clamp are connected through the clamp pivot; the upper swing angle seat is linearly and symmetrically extended outward to form a cutting knife placing and positioning part.

[0020] Further, the upper clamp and the lower clamp are both provided with a clamping part which is arrayed and engaged with each other; a needle slot is formed on one side of the clamping part, and the purse needle is movably inserted into the needle slot.

[0021] Further, the upper clamp and the lower clamp are both provided with a through sliding groove, and the cutting knife is slidably arranged in the sliding groove; one end of the sliding groove is provided with an inclined slope, and the cutting knife is quickly clamped with the upper clamp and the lower clamp through the inclined slope during operation.

[0022] Compared with the prior art, the present application has the following beneficial effects: the present application can be matched with the endoscopic linear anastomat, and can also be used for mirror operation through the endoscopic channel, and can realize left and right swing angle and locking at any position within the preset angle range, so that the patient's pain can be effectively reduced, and the labor intensity of the doctor can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to further illustrate the embodiments, the present application provides the accompanying drawings. These drawings are part of the disclosure content of the present application, mainly used to illustrate the embodiments, and can be used to explain the operation principle of the embodiments in conjunction with the related description of the specification. Those skilled in the art should understand other possible embodiments and advantages of the present application by referring to these contents. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] Figure 1 The three-dimensional structure diagram of the purse assembly which can be matched with the endoscopic anastomat of the present application is shown in the figure;

[0025] Figure 2 The exploded view of the purse assembly which can be matched with the endoscopic anastomat of the present application is shown in the figure;

[0026] Figure 3 The local enlarged view of the purse assembly which can be matched with the endoscopic anastomat of the present application is shown in the figure;

[0027] Figure 4 The three-dimensional structure diagram of the cutting knife part of the present application is shown in the figure;

[0028] Figure 5 The three-dimensional structure diagram of the swing angle pivot block of the present application is shown in the figure;

[0029] Figure 6 The needle slot view of the present application is shown in the figure;

[0030] Figure 7 Fig. 1 is a schematic diagram of the three-dimensional structure of the wire slot of the present application;

[0031] Figure 8 Fig. 2 is a schematic diagram of the threading of the purse needle of the present application;

[0032] Figure 9 Fig. 3 is a schematic diagram of the initial position structure of the sewing component of the present application;

[0033] Figure 10 Fig. 4 is a schematic diagram of the ejection of the sewing component of the present application;

[0034] Figure 11 Fig. 5 is a schematic diagram of the three-dimensional structure of the knife bar tail seat of the present application;

[0035] Figure 12 Fig. 6 is a front view of the purse assembly of the present application which can be fitted on a laparoscope anastomat;

[0036] Figure 13 Fig. 7 is a schematic diagram of the angular adjustment of the upper and lower jaws within an angle.

[0037] BRIEF DESCRIPTION OF DRAWINGS 10 - upper jaw, 20 - lower jaw, 21 - jaw pivot, 30 - angular pivot block, 301 - pivot shaft, 302 - connecting piece, 40 - assembly rod, 401 - cutting knife, 402 - cutting knife bar, 403 - knife bar tail seat, 404 - ejector rod, 101 - needle slot, 102 - purse needle, 4040 - wire slot. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0039] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0040] Please refer to the drawings shown in Figs. 1 to 7, a purse assembly which can be fitted on a laparoscope anastomat, comprising: Figure 1

[0041] an assembly rod 40, the cutting knife component and the sewing component being provided on the assembly rod 40 and being movable back and forth along the axial direction; the cutting knife component and the sewing component are both provided in a deformable manner;

[0042] ​A swing angle pivot block 30 is swingably arranged at the end of the assembly rod 40, and the assembly rod 40 can drive the angle pivot block 30 to swing back and forth.

[0043] A lower clamp 20 is fixedly arranged on the swing angle pivot block 30, and is used for clamping tissues.

[0044] An upper clamp 10 is rotatably arranged on the lower clamp 20, and the assembly rod 40 can drive the upper clamp 10 to rotate towards the lower clamp 20 to clamp tissues.

[0045] When the upper clamp 10 rotates towards the lower clamp 20 to clamp tissues, the cutter component moves along the upper clamp 10 、 When the lower clamp 20 moves to deform and cut tissues, the upper clamp 10 、 When the lower clamp 20 is pressed from both sides, the sewing component is ejected to complete the sewing of tissues.

[0046] On the basis of the above embodiment, the assembly rod 40 further comprises a first rod base provided with an array of long strip-shaped protruding portions and hemispherical protruding portions; a second rod base is detachably arranged on the first rod base; adjacent the first rod base and the second rod base form a swing driving groove; a swing rod is swingably arranged in the swing driving groove; the swing rod is swingably arranged on the hemispherical protruding portion, and the other end is hingedly connected with the swing angle pivot block 30; the swing rod can drive the swing angle pivot block 30 to swing by a small angle; the first rod base and the second rod base form a movable cavity; the cutter component and the sewing component are arranged in parallel and are movable along the axis inside the movable cavity; the first rod base and the second rod base are respectively detachably provided with a connecting piece 302; the connecting piece 302 is fixed on the first rod base and the second rod base through a ring-shaped hollow shell and an elastic locking seat; one end of the connecting piece 302 is rotatably connected with the swing angle pivot block 30.

[0047] On the basis of the above embodiment, the cutter component comprises a flexible metal cutting knife rod 402; one end of the cutting knife rod 402 is inserted into the inside of the swing angle pivot block 30; the other end of the cutting knife rod 402 is detachably provided with a cutting knife 401.

[0048] The sewing component comprises flexible metal top needle rods 404 arranged in parallel with each other; one end of the top needle rod 404 penetrates through the swing angle pivot block 30, and the other end is provided with a knife rod tail seat 403; the top needle rod 404 is movable forward and backward; the knife rod tail seat 403 is detachably arranged at the end of the cutting knife rod 402.

[0049] One end of the first rod base and the second rod base is arc-recessed.

[0050] On the basis of the above embodiment, the cutting knife rod 402 comprises a first cutting piece and a second cutting piece arranged in mirror image and a fixed spring piece; the first cutting piece and the second cutting piece are connected by a surface and are inserted between the fixed spring pieces; the first cutting piece and the second cutting piece are each provided with a tensile part;

[0051] The cutting knife 401 is provided with an I-beam, one side of the I-beam is provided with an inner concave arc-shaped cutting knife part, and the other side is provided with an inner groove trapezoidal-shaped connecting part; the upper and lower ends of the I-beam are provided with inclined chamfers;

[0052] One end of the thimble rod 404 is detachably provided with a purse needle 102; adjacent the purse needles 102 are connected together through a suture C; the purse needles 102 are movably inserted into the upper clamp 10.

[0053] On the basis of the above embodiment, the thimble rod 404 is provided with a wire groove 4040 at the end, and adjacent wire grooves 4040 are oppositely arranged, so that the suture C is connected together through the wire groove 4040 and the purse needle 102.

[0054] On the basis of the above embodiment, the swing angle pivot block 30 comprises an upper swing angle seat and a lower swing angle seat; the upper swing angle seat and the lower swing angle seat are detachably connected; the upper swing angle seat and the lower swing angle seat form an eight-shaped moving slide way therebetween; the cutting knife rod 402 is slidably inserted into the moving slide way; the upper swing angle seat is rotatably connected with the clamp pivot 21 on both sides; the upper clamp 10 and the lower clamp 20 are connected through the clamp pivot 21; the upper swing angle seat is linearly and symmetrically extended outward to form a cutting knife 401 placing and positioning part.

[0055] On the basis of the above embodiment, the lower clamp 20 and the upper clamp 10 are each provided with a clamping part A which is meshed with each other; the clamping part A on one side is provided with a needle groove 101B, and the purse needle 102 is movably inserted into the needle groove 101B.

[0056] On the basis of the above embodiment, the lower clamp 20 and the upper clamp 10 are each provided with a through sliding groove, and the cutting knife 401 is slidably arranged in the sliding groove; one end of the sliding groove is provided with an inclined slope, and the cutting knife 401 is quickly clamped with the lower clamp 20 and the upper clamp 10 through the inclined slope during work.

[0057] The specific work of the present application is as follows: the purse assembly is arranged on the upper clamp 10 and the lower clamp 20, the upper clamp 10 and the lower clamp 20 are connected through the clamp pivot 21, the upper clamp 10 can rotate within a certain angle range around the clamp pivot 21; the lower clamp 20 is fixed on the swing angle pivot block 30, the swing angle pivot block 30 is designed with a rotating shaft 301, and the two connecting pieces 302 which can rotate around the rotating shaft 301 are fixed on the assembly rod 40; the assembled body of the upper and lower clamp openings can be swing adjusted within a certain angle range around the rotating shaft 301, such as Figure 13As shown in the figure; the inside of the assembly rod 40 is provided with a cutting knife 401, a cutting knife rod 402, and a thimble rod 404; the cutting knife rod 402 and the thimble rod 404 are made of flexible metal and are prone to elastic deformation; one end of the thimble rod 404 passes through the swing pivot block 30, and the other end is clamped on the knife rod tail seat 403 as shown in the figure Figure 11 The knife rod tail seat 403 can displace forward and backward with the cutting knife rod 402, and the cutting knife rod 402 is assembled at the end of the cutting knife rod 402 and can be pushed and pulled to displace forward and backward under the action of an external force; the upper clamp 10 is provided with a needle groove 101 and two purse needles 102 on one side, and the two purse needles 102 are connected together by a suture; the cutting knife 401 has an I-beam clamped in the sliding groove of the upper clamp 10 and the lower clamp 20; when in use, the purse assembly is loaded onto the instrument, the knife rod tail seat 403 is clamped with the end of the instrument firing rod, and when the instrument is fired, the firing rod will advance, pushing the knife rod tail seat 403, the cutting knife rod 402 and the cutting knife 401 to displace forward, and the upper clamp 10 and the lower clamp 20 will close due to the action of the I-beam to clamp the tissue, and after the tissue is clamped, it will fill the gap between the upper clamp 10 and the lower clamp 20 due to its elasticity, and at the same time, the knife rod tail seat 403 pushes the thimble rod 404 to displace forward to contact the tail of the purse needle 102, and the displacement of the thimble rod 404 is equal to the displacement of the upper and lower clamp jaws, and the end of the thimble rod 404 is provided with a thread groove 4040 as shown in the figure, and the thread groove is opposite to the suture to connect the purse needle 102 together through the thread groove 4040; Figure 7 When the instrument continues to fire, the thimble rod 404 starts to push the purse needle 102 to displace forward along the needle groove of the upper and lower clamps, and in the displacement process, the purse needle 102 will pass through the tissue between the upper and lower clamp jaws, and at the same time, the cutting knife 401 will displace forward under the pushing of the cutting knife rod 402 and the knife rod tail seat 403 to cut off the excess tissue; since the upper and lower clamp needle grooves are open grooves, the suture can still be separated from the upper and lower clamps after passing through the tissue; after firing is completed, the thimble rod is reset to the initial position, the upper and lower clamps are opened to a certain angle, and the purse needle is pulled out of the needle groove by the clamp.

[0058] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art, without departing from the technical solution of the present application, can make some changes or modifications to the above disclosed technical content to make equivalent embodiments with equivalent changes, but as long as it does not deviate from the technical solution of the present application, any modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A purse-string assembly adaptable to a laparoscopic stapler, characterized in that: include: A component rod (40) is provided with a cutting component and a sewing component that can reciprocate back and forth along the axial direction; both the cutting component and the sewing component can be deformably configured. An angular pivot block (30) is oscillatingly disposed at the end of the component rod (40), and the component rod (40) can drive the angular pivot block (30) to reciprocate slightly. A clamp (20) is fixed to the pivot block (30) for clamping tissue; and An upper clamp (10) is rotatably mounted on the lower clamp (20), and the component rod (40) can drive the upper clamp (10) to rotate toward the lower clamp (20) to clamp the tissue; Wherein: when the upper clamp (10) rotates toward the lower clamp (20) to clamp the tissue, the cutting component moves deformably along the upper clamp (10) and lower clamp (20) to cut the tissue, while pressing the upper clamp (10) and lower clamp (20) on both sides; the sewing component pushes out to complete the sewing of the tissue; The component rod (40) further includes a first rod seat with an array of elongated protrusions and hemispherical protrusions; a second rod seat is detachably mounted on the first rod seat; adjacent first and second rod seats form a swing drive groove; a swing rod is swayably mounted on the swing drive groove; the swing rod is swayably mounted on the hemispherical protrusion, and its other end is hinged to the swing angle pivot block (30); the swing rod can drive the swing angle pivot block (30) to swing at a micro-angle; the first and second rod seats form a movable cavity; the cutter component and the sewing component are parallel and movable along the axis and are arranged inside the movable cavity; a connecting piece (302) is detachably mounted on each of the first and second rod seats; the connecting piece (302) is fixed on the first and second rod seats by an annular hollow shell and an elastic locking seat; one end of the connecting piece (302) is rotatably connected to the swing angle pivot block (30) The swing angle pivot block (30) includes an upper swing angle seat and a lower swing angle seat; the swing angle seat and the lower swing angle seat are detachably connected; the upper swing angle seat and the lower swing angle seat form a figure-eight shaped sliding track; the cutting blade rod (402) is slidably inserted into the sliding track; the upper swing angle seat is screwed with clamp pivots (21) on both sides; the upper clamp (10) and the lower clamp (20) are connected by clamp pivots (21); the upper swing angle seat is symmetrically extended with a cutting blade (401) placement and positioning part; Both the lower clamp (20) and the upper clamp (10) are provided with interlocking clamping parts; a needle groove (101) is provided on one side of the clamping part, and a purse needle 102 is movably inserted into the needle groove (101).

2. The purse-string assembly adaptable to a laparoscopic stapler as described in claim 1, characterized in that: The cutting component includes a cutting bar (402) made of flexible metal; one end of the cutting bar (402) is inserted into the inside of the swing angle pivot block (30); a cutting blade (401) is detachably installed on one end of the cutting bar (402). The sewing component includes a flexible metal thimble rod (404) arranged parallel to each other; one end of the thimble rod (404) passes through the swing angle pivot block (30), and the other end is engaged with a knife bar tail seat (403); the thimble rod (404) moves back and forth; the knife bar tail seat (403) is detachably installed at the end of the cutting knife bar (402); Both the first rod seat and the second rod seat have one end recessed by an arc.

3. The purse-string assembly adaptable to a laparoscopic stapler as described in claim 2, characterized in that: The cutting blade (402) comprises a first cutting blade and a second cutting blade fixing spring that are mirror images of each other; adjacent first and second cutting blades are connected face to face and inserted between the fixing springs; both the first and second cutting blades are provided with tensile parts; The cutting blade (401) is provided with an I-beam, one side of which is provided with a concave arc-shaped cutting part, and the other side is provided with a grooved trapezoidal connecting part; the upper and lower ends of the I-beam are inclined and chamfered. One end of the pin rod (404) is detachably fitted with a purse needle (102); adjacent purse needles (102) are connected together by a thread; the purse needles (102) are movably inserted into the upper clamp (10).

4. The purse-string assembly adaptable to a laparoscopic stapler as described in claim 3, characterized in that: The end of the pin bar (404) is provided with a thread groove (4040), and the adjacent thread grooves (4040) are positioned opposite each other so that the sewing thread is connected together by the purse needle (102) through the thread groove (4040).

5. The purse-string assembly adaptable to a laparoscopic stapler as described in claim 1, characterized in that: Both the lower clamp (20) and the upper clamp (10) are provided with through grooves, and the cutting blade 401 can be slidably disposed on the grooves; one end of the groove is inclined with a ramp, and during operation, the cutting blade 401 quickly clamps the lower clamp (20) and the upper clamp (10) together through the ramp.

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