Intraperitoneal wall puncture hole closure device

Abstract

The abdominal cavity wall puncture hole closure device provided by the application comprises a base and a nail box which are connected with each other, the top surface of the base is provided with a feeding mechanism, at least one closure nail is stored in the nail box, the closure nail comprises a connecting arm, the two ends of the connecting arm are respectively provided with a supporting arm, the supporting arm is in a C shape, and a puncture part is further arranged at the end of the supporting arm, two limiting plates are symmetrically arranged on the top surface of the nail box, a gap between the two limiting plates forms a pushing channel, and the output end of the feeding mechanism is connected with a push rod which is used for pushing the closure nail to slide along the pushing channel. The device is sent into the abdominal cavity through a mechanical arm and moved to the front of the puncture hole which needs to be closed, the feeding mechanism is started to make the push rod push the closure nail out and make the two puncture parts on the closure nail pierce into the circumferential side of the puncture hole, then the push rod and the two limiting plates cooperate to compress the two supporting arms of the closure nail to move close to each other, the abdominal cavity wall puncture hole is closed in the abdominal cavity, and the adverse situation that the abdominal cavity organs and tissues invade the puncture hole and further cause the stoma hernia on the abdominal cavity wall is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an abdominal cavity inner wall puncture hole closure device. BACKGROUND

[0002] Laparoscopic surgery must establish a working channel on the abdominal wall through a trocar, and surgical instruments such as long surgical forceps, electric hooks, ultrasonic knives, etc. are inserted into the interstice through the trocar to perform surgical operations to remove lesions. Currently, the trocar specifications are 5mm-12mm, and generally, the abdominal wall puncture holes larger than 5mm need to be sutured and closed after the operation is completed. The current trocar suture is performed on the outside of the abdominal cavity, which is difficult to close the various layers of tissue in the abdominal cavity, and the trocar hole on the inside of the abdominal cavity is prone to not be closed, which may cause the abdominal cavity organs and tissues such as the intestines to invade the unsealed puncture hole and further cause trocar hernia, which is not conducive to the recovery of the patient. SUMMARY

[0003] In view of the defects in the prior art, the abdominal cavity inner wall puncture hole closure device provided by the present application solves the technical problem that the existing suture equipment is difficult to close the abdominal cavity inner wall puncture hole, and the abdominal cavity organs and tissues may invade the unsealed puncture hole and further cause trocar hernia in the abdominal cavity.

[0004] In order to achieve the above-mentioned purpose, the present application realizes the technical scheme as follows:

[0005] An abdominal cavity inner wall puncture hole closure device, comprising:

[0006] a base, the top surface of which is provided with a feeding mechanism;

[0007] a nail box connected to one end of the base and storing at least one closure nail inside;

[0008] a closure nail, comprising a connecting arm, both ends of the connecting arm are respectively provided with a supporting arm, and the two supporting arms and the connecting arm form a C shape, and the supporting arm away from the connecting arm is further provided with a puncture part;

[0009] two limiting plates, symmetrically arranged on the top surface of the nail box along the feeding direction of the feeding mechanism, and the gap between the two limiting plates forms a closure nail pushing channel;

[0010] a feeding mechanism, the output end of which is connected with a push rod for pushing the closure nail to slide along the pushing channel, and the push rod can also work with the two limiting plates to press the two supporting arms of the closure nail to move closer to each other.

[0011] Optionally, the limiting plate comprises a guide section, the guide section is connected with a first bending section away from the feeding mechanism, and the first bending section extends obliquely towards the inside of the pushing channel away from the guide section.

[0012] Optionally, the guide section is connected with a second bending section at one end close to the feeding mechanism, and the second bending section extends obliquely towards the inside of the pushing channel at one end away from the guide section; a pivot is arranged at the connection between the second bending section and the guide section, and the limiting plate is rotatably connected with the top surface of the nail box through the pivot; a second spring is arranged between the second bending section and the nail box at one side away from the pushing channel; and a push plate is arranged at one end of the push rod away from the feeding mechanism, so that the end of the push rod is T-shaped.

[0013] Optionally, the top surface of the nail box is also symmetrically provided with two stop blocks, and the two limiting plates are accommodated between the two stop blocks.

[0014] Optionally, the second bending section is further connected with a third bending section at one end away from the guide section, and the included angle between the third bending section towards the side of the pushing channel and the second bending section towards the side of the pushing channel is greater than 180 degrees.

[0015] Optionally, the guide section is connected with a second bending section at one end close to the feeding mechanism, and the second bending section extends obliquely towards the inside of the pushing channel at one end away from the guide section; a pivot is arranged at the connection between the second bending section and the guide section, and the limiting plate is rotatably connected with the top surface of the nail box through the pivot; a second spring is arranged between the second bending section and the nail box at one side away from the pushing channel; and a push plate is arranged at one end of the push rod away from the feeding mechanism, so that the end of the push rod is T-shaped; the second bending section is further connected with a third bending section at one end away from the guide section, and the included angle between the third bending section towards the side of the pushing channel and the second bending section towards the side of the pushing channel is greater than 180 degrees.

[0016] Optionally, the device further comprises a movable limiting assembly and a mounting rack for mounting the movable limiting assembly, the mounting rack is arranged on the top surface of the nail box in a detachable manner, the movable limiting assembly comprises a movable plate between the push plate and the mounting rack, the top surface of the movable plate is provided with a guide rod, the top end of the guide rod penetrates through the mounting rack and is slidably connected with the mounting rack, a third spring is sleeved on the outer periphery of the guide rod, and the third spring is clamped between the movable plate and the mounting rack; the bottom surface of one end of the movable plate away from the feeding mechanism is provided with a baffle and a first wedge-shaped block, the first wedge-shaped block is clamped between the feeding mechanism and the baffle, and the gap between the baffle and the first wedge-shaped block is used for accommodating the connecting arm of the closed nail; two supporting legs are arranged at one end of the movable plate close to the feeding mechanism, so that the profile shape of the movable plate is Y-shaped, the bottom surface of one end of the supporting leg away from the movable plate is provided with a second wedge-shaped block, the maximum height of the second wedge-shaped block is greater than the maximum height of the first wedge-shaped block, and the height of the baffle is greater than the maximum height of the first wedge-shaped block and less than or equal to the maximum height of the second wedge-shaped block.

[0017] Optionally, the top surface of the nail box is also symmetrically provided with two stop blocks, and the two limiting plates are accommodated between the two stop blocks.

[0018] Optionally, two ends of the connecting arm are respectively provided with a first branch arm and a second branch arm, an end of the first branch arm is provided with a first puncture part, an end of the second branch arm is provided with a second puncture part, the first puncture part is provided with a clamping groove towards the side of the second puncture part, and the second puncture part is provided with a barb embeddable in the clamping groove towards the side of the first puncture part.

[0019] Optionally, a protective shell is further included, which is arranged on the base, and the feeding mechanism, the push rod and the nail box are all accommodated in the protective shell.

[0020] From the above technical solution, the beneficial effects of the present application are:

[0021] The abdominal cavity inner wall puncture hole closure device provided by the present application comprises a base and a nail box, the top surface of the base is provided with a feeding mechanism, the nail box is connected with one end of the base, and at least one closure nail is stored in the nail box; the closure nail comprises a connecting arm, two ends of the connecting arm are respectively provided with branch arms, the two branch arms and the connecting arm jointly enclose a C shape, and a puncture part is further arranged at the end of the branch arm away from the connecting arm; two limiting plates are symmetrically arranged on the top surface of the nail box along the feeding direction of the feeding mechanism, and the gap between the two limiting plates forms a closure nail pushing channel; the output end of the feeding mechanism is connected with a push rod for pushing the closure nail to slide along the pushing channel, and the push rod can also cooperate with the two limiting plates to compress the two branch arms of the closure nail to move closer to each other. The abdominal cavity inner wall puncture hole closure device is arranged at the end of a mechanical arm and enters the abdominal cavity together with the mechanical arm through a trocar, the mechanical arm is adjusted to move the device to the front of the puncture hole to be closed, the feeding mechanism is started to make the push rod push the connecting arm of the closure nail, and then the closure nail is pushed out and the two puncture parts on the closure nail are pierced into the side of the puncture hole, and then the push rod and the two limiting plates are cooperated to compress the two branch arms of the closure nail to move closer to each other, so that the abdominal cavity inner wall puncture hole is closed in the abdominal cavity, and the adverse situation of the abdominal cavity organs and tissues invading the puncture hole and then causing a trocar hernia on the abdominal cavity inner wall is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art of the present application, the drawings needed in the specific embodiments or prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, various elements or parts are not necessarily drawn according to the actual proportions.

[0023] Figure 1 Schematic diagram of the three-dimensional structure of the abdominal cavity inner wall puncture hole closure device embodiment one;

[0024] Figure 2 For Figure 1 Enlarged view of A in the middle;

[0025] Figure 3 Schematic diagram of the internal structure of the nail box;

[0026] Figure 4 is a top view of the nail box part in example one;

[0027] Figure 5 is a schematic view of the structure of the closing nail;

[0028] Figure 6 is a schematic view of the closing device of the puncture hole in the abdominal cavity wall in example two;

[0029] Figure 7 is a schematic view of the closing nail arms being pressed together by the limiting plate in example two;

[0030] Figure 8 is a schematic view of the closing nail arms being further pressed together by the limiting plate being rotated in example two;

[0031] Figure 9 is a schematic view of the closing nail being released by the limiting plate in example three;

[0032] Figure 10 is a top view of the nail box part in example four;

[0033] Figure 11 is a schematic view of the structure of the movable plate;

[0034] Figure 12 is a schematic view of the closing nail being limited from sliding by the movable plate in example four;

[0035] Figure 13 is a schematic view of the closing nail being limited from sliding by the movable plate in example four; Figure 12 is an enlarged view of B in

[0036] Figure 14 is a schematic view of the closing nail being limited from sliding by the movable plate in example four;

[0037] Figure 15 is an enlarged view of C in Figure 14

[0038] is an enlarged view of D in Figure 16 Figure 14 is a top view of the nail box part when the movable plate releases the sliding limitation;

[0039] Figure 17

[0040] Reference signs:

[0041] 1 - base, 2 - feeding mechanism, 3 - push rod, 4 - nail box, 5 - limiting plate, 6 - closing nail, 7 - movable limiting assembly;

[0042] ​​31 - push plate, 41 - nail groove, 42 - first spring, 43 - second spring, 44 - stop block, 51 - guide section, 52 - first bent section, 53 - second bent section, 54 - pivot, 55 - third bent section, 61 - connecting arm, 62 - support arm, 63 - puncture part, 71 - movable plate, 72 - guide rod, 73 - third spring, 74 - support leg;

[0043] 711 - baffle, 712 - first wedge-shaped block, 713 - limiting groove, 731 - second wedge-shaped block. DETAILED DESCRIPTION

[0044] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0045] The present application provides an intra-abdominal wall puncture hole closure device, which can refer to Figure 1 , comprising a base 1 and a nail box 4, the top surface of the base 1 is provided with a feeding mechanism 2. The nail box 4 is connected with one end of the base 1, and at least one closure nail 6 is stored inside. Please refer to Figure 5, the closing nail 6 comprises a connecting arm 61, both ends of the connecting arm 61 are respectively provided with a branch arm 62, and the two branch arms 62 and the connecting arm 61 are enclosed to form a C shape, and the end of the branch arm 62 away from the connecting arm 61 is further provided with a puncture part 63. The top surface of the nail box 4 is symmetrically provided with two limiting plates 5 along the feeding direction of the feeding mechanism 2, and the gap between the two limiting plates 5 forms a closing nail 6 pushing channel. The output end of the feeding mechanism 2 is connected with a push rod 3 for pushing the closing nail 6 to slide along the pushing channel, and the push rod 3 can also cooperate with the two limiting plates 5 to compress the two branch arms 62 of the closing nail 6 to each other. Preferably, the intra-abdominal wall puncture hole closing device further comprises a protective shell covering the base 1, and the feeding mechanism 2, the push rod 3 and the nail box 4 are all accommodated in the protective shell. The intra-abdominal wall puncture hole closing device is arranged at the end of the mechanical arm and enters the abdominal cavity together with the mechanical arm through the trocar, the mechanical arm is adjusted to move the device to the front of the puncture hole to be closed, the feeding mechanism 2 is started to make the push rod 3 push the connecting arm 61 of the closing nail 6, and then the closing nail 6 is pushed out of the nail box 4 along the pushing channel, and then the two puncture parts 63 on the closing nail 6 are pierced into the circumferential side of the puncture hole, and then the push rod 3 and the two limiting plates 5 are cooperated to compress the two branch arms 62 of the closing nail 6 to each other, thereby driving the tissue around the puncture hole to be closed to each other, thereby closing the intra-abdominal wall puncture hole in the abdominal cavity, and avoiding the adverse situation that the abdominal cavity organ tissue invades the puncture hole and then causes the trocar hernia on the intra-abdominal wall. Obviously, the closing nail 6 should not be left in the abdominal cavity for a long time, so the closing nail 6 needs to be made of degradable metal materials with certain deformation ability, such as magnesium alloy or zinc alloy or other composite materials, in addition, the branch arm 62 itself or the connection between the branch arm 62 and the connecting arm 61 has deformation ability. Embodiment one

[0046] The embodiment aims to provide a specific structure of the limiting plate 5 suitable for the above-mentioned intra-abdominal wall puncture hole closing device, please refer to Figure 2 and 4 , the limiting plate 5 comprises a guide section 51, the end of the guide section 51 away from the feeding mechanism 2 is connected with a first bending section 52, and the end of the first bending section 52 away from the guide section 51 extends obliquely towards the inside of the pushing channel, that is, the first bending section 52 bends inward, so that the included angle between the side of the guide section 51 towards the pushing channel and the side of the first bending section 52 towards the pushing channel is less than 180 degrees. First, the feeding mechanism 2 is started to make the push rod 3 push the closing nail 6 on the surface of the nail box 4, when the closing nail 6 slides on the guide section 51, the guide section 51 only plays a guiding role; when the closing nail 6 slides into the first bending section 52, the inside of the first bending section 52 is in contact with the outside of the branch arm 62 of the closing nail 6, as Figure 4, the push rod 3 continues to move to the right, the supporting arm 62 is bent inward under the pressure of the first bending section 52, and the two puncture parts 63 are brought closer to each other, and if the puncture parts 63 are inserted into the periphery of the puncture hole to be closed, the puncture hole is closed. It should be noted that in actual use, the push rod 3 needs to push the closure nail 6 out of the first bending section 52 to complete the disengagement of the closure nail 6 from the device. Embodiment Two

[0047] This embodiment is a further improvement on Embodiment One. Please refer to Figures 6-8 , the second bending section 53 is connected to the guiding section 51 near one end of the feeding mechanism 2, and the second bending section 53 also extends obliquely inward from the end away from the guiding section 51, that is, the second bending section 53 is also bent inward, so that the angle between the side of the guiding section 51 facing the pushing channel and the side of the second bending section 53 facing the pushing channel is less than 180 degrees. In particular, the connecting part of the second bending section 53 and the guiding section 51 is also provided with a rotating shaft 54, and the limiting plate 5 is rotatably connected to the top surface of the nail box 4 through the rotating shaft 54, while the structure of the limiting plate 5 disclosed in Embodiment One is fixedly connected to the nail box 4; a second spring 43 is also arranged between the side of the second bending section 53 away from the pushing channel and the nail box 4; and a push plate 31 is arranged at the end of the push rod 3 away from the feeding mechanism 2, so that the end of the push rod 3 is T-shaped. Please refer to Figure 7 , the second spring 43 is parallel to the feeding direction of the push rod 3 in the natural state. Preferably, to ensure the pressure of the first bending section 52 on the closure nail 6, two stop blocks 44 are symmetrically arranged on the top surface of the nail box 4, and the two limiting plates 5 are accommodated between the two stop blocks 44, so as to limit the pivoting range of the first bending section 52 by arranging the stop blocks 44. On the basis of the operation method of Embodiment One, when the push rod 3 pushes the closure nail 6 to the position where the two puncture parts 63 are inserted into the periphery of the puncture hole, the push rod 3 moves to the left, and when the push plate 31 slides into the second bending section 53, the two ends of the push plate 31 respectively abut against the inner sides of the two second bending sections 53, and continue to move to the left, which causes the second bending section 53 to open outward around the rotating shaft 54, the first bending section 52 on the other side of the rotating shaft 54 is bent inward, further causing the supporting arm 62 to bend inward, and further causing the two puncture parts 63 to be closer to each other, thereby improving the closure effect of the closure nail 6 on the puncture hole; when the push rod 3 moves to the right and the push plate 31 slides into the guiding section 51 again, the limiting plate 5 is automatically reset under the elastic force of the second spring 43, at this time the first bending section 52 no longer presses the closure nail 6, and the device can be moved backward by a mechanical arm to make the closure nail 6 and the device disengage from each other. Embodiment Three

[0048] This embodiment is a further improvement on Embodiment Two. Please refer to Figure 9, the second bending section 53 is further connected with a third bending section 55 away from one end of the guide section 51, and the included angle between the third bending section 55 and the second bending section 53 towards the pushing channel side is greater than 180 degrees, that is, the third bending section 55 is outwardly bent. In the second embodiment, when the push rod 3 drives the push plate 31 to slide to the second bending section 53, in order to make the closure nail 6 and the device mutually separate, the push plate 31 needs to slide into the guide section 51 again, and the present embodiment gives another choice, that is, the push rod 3 can drive the push plate 31 to continue to slide left to slide into the third bending section 55, under the elastic force of the second spring 43, the limiting plate 5 can be reset by a certain proportion, at this time the first bending section 52 no longer presses the closure nail 6, and the device is driven by the mechanical arm to move backward to make the closure nail 6 and the device mutually separate. Embodiment four

[0049] The present embodiment is a further improvement on the third embodiment, the first bending section 52 in the third embodiment is completely removed in the present embodiment, only the guide section 51, the rotating shaft 54, the second bending section 53 and the third bending section 55 are reserved. Since the first bending section 52 is removed, when the push plate 31 is located in the guide section 51, the limiting plate 5 only has a guiding effect on the closure nail 6, and cannot limit the sliding ability of the closure nail 6, the closure nail 6 is easy to slide freely in the pushing channel or even directly out of the device. Therefore, in the present embodiment, the structure of the nail box 4 needs to be further described, please refer to Figure 3 , the nail box 4 top surface is further provided with a nail groove 41, the nail groove 41 extends downwardly and downwardly, the bottom of the nail groove 41 is provided with a first spring 42, at least one closure nail 6 is stored in the nail groove 41, and the closure nail 6 is located between the top surface of the nail box 4 and the top end of the first spring 42. In actual use, before the mechanical arm moves the device to the front of the puncture hole to be closed, the push plate 31 needs to cover or partially cover the nail groove 41, so that the closure nail 6 is accommodated in the nail groove 41, when the device moves to the front of the puncture hole to be closed and the distance between the abdominal cavity inner wall and the device is less than the width of the closure nail 6, the push plate 31 can slide left to make the closure nail 6 in the nail groove 41 pushed out under the elastic force of the first spring 42 and placed in the pushing channel, and then the push plate 31 pushes the closure nail 6 to the two puncture parts 63 in the abdominal cavity inner wall. Obviously, the structure of the nail box 4 mentioned in the present embodiment is also applicable to all the embodiments mentioned in the present specification. Embodiment five

[0050] The embodiment is also a further improvement of the third embodiment. The first bending section 52 in the third embodiment is completely removed in the fourth embodiment, only the guide section 51, the pivot 54, the second bending section 53 and the third bending section 55 are reserved, and the movable limiting assembly 7 and the mounting rack for mounting the movable limiting assembly 7 are additionally arranged. Please refer to 10-17. The mounting rack is detachably arranged on the top surface of the nail box 4. The movable limiting assembly 7 comprises a movable plate 71 between the push plate 31 and the mounting rack. The top surface of the movable plate 71 is provided with a guide rod 72. The top end of the guide rod 72 penetrates through the mounting rack and is in sliding connection with the mounting rack. A third spring 73 is arranged on the outer periphery of the guide rod 72. The third spring 73 is clamped between the movable plate 71 and the mounting rack. The bottom surface of the end of the movable plate 71 away from the feeding mechanism 2 is provided with a baffle 711 and a first wedge-shaped block 712. The first wedge-shaped block 712 is clamped between the feeding mechanism 2 and the baffle 711. The gap between the baffle 711 and the first wedge-shaped block 712 is used for accommodating the connecting arm 61 of the closing nail 6. Two supporting legs 74 are arranged on the end of the movable plate 71 close to the feeding mechanism 2, so that the profile shape of the movable plate 71 is Y-shaped. The bottom surface of the end of the supporting leg 74 away from the movable plate 71 is provided with a second wedge-shaped block 731. The maximum height of the second wedge-shaped block 731 is greater than the maximum height of the first wedge-shaped block 712. The height of the baffle 711 is greater than the maximum height of the first wedge-shaped block 712 and less than or equal to the maximum height of the second wedge-shaped block 731.

[0051] In use, when the push plate 31 slides to contact the wedge-shaped block, the movable plate 71 is lifted as a whole. When the push plate 31 pushes the closure nail 6 to slide from the guide section 51 to contact the first wedge-shaped block 712, the push plate 31 cooperates with the first wedge-shaped block 712 to lift the movable plate 71 to a certain height, so that the connecting arm 61 of the closure nail 6 passes from the lower end of the first wedge-shaped block 712 and is blocked by the baffle 711; then the push rod 3 moves left, the movable plate 71 moves down, so that the connecting arm 61 of the closure nail 6 is clamped in the limiting groove 713 between the first wedge-shaped block 712 and the baffle 711, that is, the left and right sliding degrees of freedom of the closure nail 6 are limited. For subsequent operation, when the closure nail 6 is embedded in the limiting groove 713, the two piercing parts 63 of the closure nail 6 need to be exposed outside the nail box 4, at this time, the device is moved by the mechanical arm and the two piercing parts 63 are inserted into the puncture hole. Then the push rod 3 continues to move left to slide the push plate 31 into the second bending section 53, the two ends of the push plate 31 respectively abut against the inner sides of the two second bending sections 53, and continue to move left, that is, the second bending section 53 is compressed to open outward around the rotating shaft 54, the guide section 51 on the other side of the rotating shaft 54 is compressed to fold inward, the supporting arm 62 is bent inward, and then drives the two piercing parts 63 to approach each other to complete the closure of the puncture hole. Then the push rod 3 continues to move left to make the push plate 31 slide into the third bending section 55, under the elastic force of the second spring 43, the limiting plate 5 can be reset to a certain proportion, at this time the guide section 51 no longer compresses the closure nail 6, then the push plate 31 continues to move left in the third bending section 55 to make the push plate 31 contact the second wedge-shaped block 731, the push plate 31 cooperates with the second wedge-shaped block 731 to lift the movable plate 71 to the maximum height, so that the connecting arm 61 of the closure nail 6 completely leaves the limiting groove 713, so that the baffle 711 and the first wedge-shaped block 712 no longer limit the left and right sliding degrees of freedom of the connecting arm 61, that is, the sliding limiting action of the movable limiting assembly 7 on the closure nail 6 is released, at this time, the device is moved backward by the mechanical arm to make the closure nail 6 and the device separate from each other, and the first closure nail 6 is left on the puncture hole. By arranging the movable limiting assembly 7, the closure nail 6 in the push channel cannot slide out of the device when the push rod 3 is not pushed (at this time, the remaining closure nails 6 are accommodated in the nail groove 41), and after the push rod 3 pushes the closure nail 6 to the right end of the device, the closure nail 6 cannot slide left and right during the backward movement of the push rod 3. Embodiment six

[0052] The embodiment is further improved to the structure of the closure nail 6, both ends of the connecting arm 61 are respectively provided with a first branch arm and a second branch arm, the end of the first branch arm is provided with a first puncture part, the end of the second branch arm is provided with a second puncture part, the first puncture part is provided with a clamping groove towards the side of the second puncture part, and the second puncture part is provided with a barb which can be embedded into the clamping groove towards the side of the first puncture part, and the cooperation of the barb and the clamping groove further ensures the closure quality and reliability of the closure nail 6 to the puncture hole. For the specific structure, please refer to the invention patent "suture forceps for laparoscopic surgery" with the publication number CN110680435A. Obviously, the structure of the closure nail 6 designed in the embodiment is suitable for all the above embodiments.

[0053] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application.

Claims

1. An intra-abdominal wall puncture closure device, comprising: The utility model relates to a kind of automatic injection device, including: Base, top surface is equipped with feed mechanism; Nail box, with base one end is connected, inside storage has at least one closed nail; Closed nail, including connecting arm, the both ends of connecting arm are equipped with support arm respectively, and two support arms and connecting arm are enclosed and present C type, support arm is equipped with puncture portion away from one end of connecting arm; Two limit plates, on the top surface of nail box, along the feeding direction of feed mechanism, symmetrically set, the gap between two limit plates forms closed nail push channel; Feed mechanism, output end is connected with push rod for pushing closed nail along push channel sliding, and push rod can also be used with two limit plates to compress the two support arms of closed nail and close to each other; The limit plate includes guide section, the second bending section is connected with the end of guide section close to feed mechanism, and the second bending section is inclined and extends away from the end of guide section towards the inside of push channel;The connecting place of second bending section and guide section is also provided with pivot, and the limit plate is rotatably connected with the top surface of nail box by pivot;Second spring is further provided between the side of second bending section away from push channel and nail box;The end of push rod is provided with push plate away from feed mechanism, so that the end of push rod is T-shaped;The third bending section is further connected with the end of second bending section away from guide section, and the included angle between the side of third bending section towards push channel and the side of second bending section towards push channel is greater than 180 degrees; Further including movable limiting component and mounting bracket for installing movable limiting component, the mounting bracket is detachably arranged on the top surface of nail box, the movable limiting component includes movable plate between push plate and mounting bracket, the top surface of movable plate is provided with guide rod, the top end of guide rod penetrates mounting bracket and is slidably connected with mounting bracket, the third spring is sleeved on the outer periphery of guide rod, and the third spring is clamped between movable plate and mounting bracket;The bottom surface of the end of movable plate away from feed mechanism is provided with baffle and first wedge, and the first wedge is clamped between feed mechanism and baffle, the gap between baffle and first wedge is used to accommodate the connecting arm of closed nail;Two supporting legs are arranged on the end of movable plate close to feed mechanism, so that the contour shape of movable plate is Y-shaped, the bottom surface of the end of supporting leg away from movable plate is provided with second wedge, the maximum height of second wedge is greater than the maximum height of first wedge, and the height of baffle is greater than the maximum height of first wedge and less than or equal to the maximum height of second wedge.

2. The device according to claim 1, wherein The top surface of the nail box is also symmetrically provided with two stop blocks, and the two limit plates are accommodated between the two stop blocks.

3. The device according to claim 1 or 2, wherein The both ends of the connecting arm are respectively provided with first support arm and second support arm, the end of the first support arm is provided with first puncture portion, the end of the second support arm is provided with second puncture portion, the first puncture portion is provided with a clamping groove towards the side of the second puncture portion, and the second puncture portion is provided with a barb that can be embedded in the clamping groove towards the side of the first puncture portion.

4. The device according to claim 1 or 2, wherein Further including protective shell covered on base, the feed mechanism, push rod and nail box are all accommodated in protective shell.

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