Tissue closure device

Abstract

The present invention relates to the technical field of medical devices, and discloses a tissue closing device, comprising: a closing device, the closing device is used to introduce a suture into the abdominal cavity through a surgical incision, and prop up the suture in the abdominal cavity; and a guide needle, the guide needle is slidably connected relative to the closing device, used to pierce the abdominal cavity, and clamp the propped suture out of the abdominal cavity; specifically, the closing device comprises a shell member, the guide needle is slidably connected to the shell member, so that the guide needle can be displaced in a direction deviating from the axial direction of the closing device by a certain angle; the closing device also comprises a connecting member, the connecting member is slidably connected to the shell member, so that the connecting member can be displaced along the axial direction of the closing device, and the connecting member is slidably connected to the guide needle, so that the guide needle can be displaced in a direction close to or away from the central axis of the closing device. The present invention has the technical effects of simple operation and improved efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a tissue closing device. Background Art

[0002] Laparoscopic surgery is an application of laparoscopic surgery in general surgery. It has involved various surgical procedures in general surgery and has gradually reached or exceeded the therapeutic effect of open surgery. This surgical method has the technical advantages of small incisions, no touching of abdominal organs, no exposure of organs to the air, and minimal interference with the patient's physiological functions. After surgery, it has the advantages of small incision scars, beautiful appearance, light pain, and quick recovery.

[0003] The abdominal wall puncture device is the passage for laparoscopic surgical instruments to enter the abdominal cavity from the outside. After the operation is completed and the puncture device is pulled out, a "well" shaped defect will be caused on the abdominal wall. It is difficult to close the puncture hole because it is difficult to suture the full-thickness myofascial defect through 10 and 12 mm puncture holes. Therefore, the myofascial defect of the abdominal wall is the cause of the puncture hole incision defect after laparoscopic surgery. Therefore, there is a tissue closure device specifically used for suturing and closing the puncture hole in clinical practice - the fascia closer.

[0004] like Figure 1 , is a traditional fascia closure device, which consists of two parts, one is called fascia closure device a, and the other is called guide needle b. During operation, the fascia closure device a is first inserted into the abdominal cavity from the puncture hole, the middle section of the suture c is introduced into the abdominal cavity, and the side wings d at the head end are opened to form an umbrella-like structure, and the suture in the abdominal wall is stretched to Figure 2 In the state shown, the guide needle b then obliquely penetrates the abdominal wall muscle fascia and peritoneum, hooks up the suture c in the abdominal cavity, and brings out one end of the suture with the guide needle, then penetrates the guide needle into the other side, brings out the other end of the suture, and finally folds the flank d and pulls out the fascia closer, tightens and knots the two ends of the suture to close the fascia defect of the puncture hole. It can be seen from the working process of the fascia closer that the existing fascia closer has certain defects: first, in the process of leading out the suture in the abdominal cavity, one hand needs to hold the fascia closer and the other hand needs to take the guide needle to operate the guide needle, which is inconvenient to use; second, the existing technology needs to operate the guide needle twice to hook out the two ends of the suture respectively, which includes the actions of inserting the guide needle, hooking the suture, and pulling out the guide needle twice, resulting in low efficiency.

[0005] Based on the above, the present application provides a tissue closure device to solve this technical defect. Summary of the invention

[0006] The object of the present invention is to provide a tissue closing device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a tissue closure device, comprising: a closure device, which is used to introduce a suture into the abdominal cavity through a surgical incision and prop up the suture in the abdominal cavity; and a guide needle, which is slidably connected relative to the closure device, used to pierce the abdominal cavity, clamp the propped suture and lead it out of the abdominal cavity.

[0008] Preferably, the closer includes a shell member, and the guide wire needle is slidably connected to the shell member so that the guide wire needle can be displaced in a direction deviating from the axial direction of the closer by a certain angle; the closing device also includes a connecting member, and the connecting member is slidably connected to the shell member so that the connecting member can be displaced along the axial direction of the closer, and the connecting member is slidably connected to the guide wire needle so that the guide wire needle can be displaced in a direction approaching or away from the central axis of the closer; when a pushing load is applied to the connecting member, the guide wire needle is driven to be displaced, and the displacement of the guide wire needle is decomposed into a displacement in a direction approaching or away from the central axis of the closer and a displacement in a direction deviating from the axial direction of the closer by a certain angle.

[0009] Preferably, a stop platform is formed in the middle of the outer shell, and when the connecting member is displaced along the axial direction of the closer until it meets the stop platform, the displacement distance is determined.

[0010] Preferably, an elastic buckle is provided on one side of the shell member close to the connecting member; a card interface is provided on one side of the connecting member close to the shell member; when the connecting member is displaced along the axial direction of the closer until the card interface is engaged with the elastic buckle, the connecting member and the shell member are relatively fixed.

[0011] Preferably, the connecting member further includes a first elastic member, the first elastic member abuts between the connecting member and the stopping platform, and when the connecting member and the outer shell are relatively fixed, the first elastic member undergoes compression deformation.

[0012] Preferably, the outer shell comprises: a first column member, which is a member close to one end of the abdominal cavity when the closer is in use; and a second column member, which is a member far away from one end of the abdominal cavity when the closer is in use, the second column member is connected to and communicated with the first column member, the stopping platform is a step surface connecting the second column member and the first column member, and the connecting member is placed on a side of the stopping platform close to the second column member.

[0013] Preferably, a channel is provided on the first cylindrical member, the central axis of the channel forms an angle with the central axis of the closer, and a through hole is provided on the second cylindrical member, the through hole is coaxial with the channel; the wire needle is inserted into the second cylindrical member through the through hole, and at the same time inserted into the first cylindrical member through the channel, to achieve a sliding connection with the outer shell member.

[0014] Preferably, the connecting member is placed in the second cylindrical member, and the connecting member includes a slide rail, which extends in a direction away from the centerline axis of the closer. A first slider is provided in the middle of the wire needle, and the first slider is placed in the slide rail to achieve a sliding connection between the connecting member and the wire needle.

[0015] Preferably, the connecting member further comprises a column member, one end of the column member away from the stopping platform extends out of the second column tube member, and one end of the column member close to the stopping platform is connected to the slide rail.

[0016] Preferably, the second cylindrical member includes a slide groove extending along the direction of the central axis of the closer; the connecting member also includes a second slider disposed in the slide groove to achieve a sliding connection between the connecting member and the outer shell member.

[0017] Preferably, the second cylindrical member further includes a guide column, which extends along the direction of the central axis of the closer; the connecting member further includes a guide hole, through which the guide column passes.

[0018] Preferably, the closure device also includes: an insertion column, which is located at an end of the first column barrel member away from the second column barrel member, is fixedly connected to the first column barrel member, and is used to insert into the abdominal cavity when guiding the suture; and a support member, which is arranged along the extension direction of the insertion column, one end of which is fixedly connected to an end of the first column barrel member away from the second column barrel member, and is inserted into the abdominal cavity along with the insertion column when guiding the suture, and a guide groove is provided on the support member for hanging the suture, so as to facilitate the introduction of the suture into the abdominal cavity; and a pull rod, which is placed in the first column barrel member and one end of which extends to be fixedly connected to the other end of the support member. When a tensile load is provided to the pull rod, the support member is folded by the tensile force to form an umbrella-like structure to support the suture. When a pushing load is provided to the pull rod, the support member is restored by the tensile force.

[0019] Preferably, a wire hanging pile is also provided in the middle of the insertion column, and the wire hanging pile is also used for hanging sutures; a wire passing hole is also provided on the support member, and when the support member is in an umbrella-shaped structure, the sutures pass through the wire passing hole and are tensioned between the support member and the wire hanging pile, reserving space for the hook to hook the wire, and at the same time, the wire passing hole is used for the tip of the guide needle to extend into the umbrella-shaped structure.

[0020] Preferably, wire drawing grooves are provided on both sides of the middle of the outer shell. After the suture is guided through the wire drawing groove and the wire hanging pile in sequence, its two ends are hung in the wire drawing grooves to prevent the two ends of the suture from being inserted into the abdominal cavity along with the closure device.

[0021] Preferably, the other end of the pull rod extends into the second cylindrical member; a slot is provided on the second cylindrical member, and the slot extends along the axial direction of the pull rod; the closer also includes a button, which is located outside the second cylindrical member and is slidably connected to the other end of the pull rod through the slot, and a hanging pile is provided at a position corresponding to the inner wall of the slot, and hanging grooves corresponding to the hanging pile are provided at the upper and lower ends of the inner wall of the slot.

[0022] Preferably, the button further includes a second elastic member, and the second elastic member abuts between the button and the pull rod.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0024] 1. The present invention discloses a tissue closure device, particularly a minimally invasive fascia closure device. Different from the separate structure of the closure device and the puncture needle in the traditional fascia closure device, the closure device and the puncture needle of the minimally invasive fascia closure device are of an integrated structure, which is convenient for doctors to operate the two during surgery and is easy to use;

[0025] 2. The present invention discloses a tissue closure device, which simultaneously performs the puncture needle insertion action by setting a connecting piece, thereby avoiding the defect of the traditional fascia closer that the puncture needle needs to perform the guide needle insertion action twice - hooking the suture thread - pulling out the guide needle, and the surgical efficiency is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 is a stereoscopic diagram of a conventional fascia closure device in the present invention;

[0028] Figure 2 It is a partial diagram of a traditional fascia closure device in the present invention;

[0029] Figure 3 is a front view of a minimally invasive fascia closure device according to an embodiment of the present invention;

[0030] Figure 4 Schematic diagram of the internal structure of the minimally invasive fascia closure device in an embodiment of the present invention;

[0031] Figure 5 is an exploded view of a minimally invasive fascia closure device according to an embodiment of the present invention;

[0032] In the figure:

[0033] Closer 1;

[0034] Shell 11, stop platform 111, first column 112, channel 1121, second column 113, elastic buckle 1131, through hole 1132, slide groove 1133, guide column 1134, notch 1135, hanging groove 1136;

[0035] Insert the column 12 and hang the wire pile 121;

[0036] Support member 13, wire guide groove 131, wire through hole 132;

[0037] Tie rod 14;

[0038] Wire draw trough 15;

[0039] Button 16, hanging pile 161, second elastic member 162;

[0040] Wire needle 2;

[0041] A first slider 21;

[0042] Connector 3;

[0043] A first elastic member 31;

[0044] Slide rail 32, second slide block 321, guide hole 322;

[0045] The column member 33 and the card interface 331 . DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] In the process of leading out the intra-abdominal suture with the existing fascia closer, one hand needs to hold the fascia closer and the other hand needs to hold the guide needle to operate the guide needle, which is inconvenient to use; and the guide needle needs to be operated twice during the operation to hook out the two ends of the suture respectively, which includes the actions of inserting the guide needle, hooking the suture, and pulling out the guide needle twice, which has the defect of low efficiency.

[0048] In view of the above-mentioned defects, the present application provides an embodiment of a tissue closure device, specifically a disposable minimally invasive fascia closure device.

[0049] Specifically, Figure 3 , which is a front view of the minimally invasive fascia closure device, includes a closure device 1 and a guide needle 2. The closure device 1 is used to introduce the suture into the abdominal cavity through a surgical incision and prop up the suture in the abdominal cavity. The guide needle 2 is used to pierce the abdominal cavity and clamp the propped suture and lead it out of the abdominal cavity. After tying the two ends of the suture, the fascia defect of the surgical incision can be closed.

[0050] Furthermore, in order to avoid holding the closer 1 with one hand while taking the guide needle 2 with the other hand, and in order to avoid repeating the actions of inserting the guide needle, hooking the suture, and pulling out the guide needle 2 twice, the present embodiment provides one closer 1 with two guide needles 2, and the two guide needles 2 are respectively slidably connected relative to the closer 1, that is, the closer 1 and the two guide needles 2 are designed as an integrated structure, and the sliding connection method is to cooperate with the insertion and removal actions of the guide needle 2.

[0051] In another embodiment, it can also be configured that one closure device 1 corresponds to one guide wire needle 2, and the guide wire needle 2 is slidably connected to the closure device 1. After the guide wire needle 2 hooks out one end of the suture thread, it hooks the other end, which can reduce the action of taking the guide wire needle 2.

[0052] In another embodiment, it can also be configured that one closure device 1 corresponds to a plurality of guide needles 2 to assist in suturing a plurality of suture threads.

[0053] Furthermore, before the wire-hooking action is performed, the guide needle 2 needs to be inserted into the abdominal cavity first. There are two guide needles 2 in this embodiment. If the two guide needles 2 are inserted separately, it will also lead to low efficiency and it is easy to make the insertion distance of the two guide needles 2 difficult to control. Therefore, it is considered to perform the insertion action on the two guide needles 2 at the same time.

[0054] Specifically, Figure 4 This is a schematic diagram of the internal structure of the minimally invasive fascia closure device. Figure 5 This is an exploded view of the minimally invasive fascia closure device. Figures 4-5 As can be seen from the figure, the closer 1 includes a housing 11, which is a basic structure and does not perform any action; the guide pin 2 is slidably connected to the housing 11, so that the guide pin 2 can be displaced in a direction deviating from the central axis L of the closer 1 by a certain angle α (such as Figure 1 As shown), the insertion angle of the guide needle 2 is determined, and the insertion angle is the insertion angle of the guide needle in the traditional fascia closure device, wherein the sliding connection method can also guide the guide needle 2 to prevent the guide needle 2 from deviating during the insertion process; the minimally invasive fascia closure device also includes a connecting member 3, the connecting member 3 is slidably connected to the shell member 11, so that the connecting member 3 can be displaced along the axial direction of the closure device 1, and the connecting member 3 is slidably connected to the two guide needles 2, so that the guide needle 2 can be displaced in the direction close to or away from the central axis L of the closure device 1;

[0055] Based on this, when a pushing load is applied to the connector 3 to displace the connector 3 toward the wound, the two guide needles 2 can be driven to displace, but the guide needles 2 are restricted in the direction of the central axis L of the closure device 1 deviating from the angle α. Therefore, the displacements of the two guide needles 2 will be decomposed into displacements in the direction close to the central axis L of the closure device 1 and displacements in the direction of the central axis L of the closure device 1 deviating from the angle α. In this way, the two guide needles 2 can be controlled to perform insertion actions simultaneously under different displacement directions.

[0056] Furthermore, after the closure device 1 props up the suture in the abdominal cavity, the insertion distance of the guide needle 2 must be determined to prepare for the subsequent hooking action; based on this, Figures 4-5 A stop platform 111 is formed in the middle of the outer shell 11, and the connecting member 3 is arranged at the end of the stop platform 111 away from the wound. When the connecting member 3 is displaced along the axial direction of the closure device 1 to meet the stop platform 111, the displacement distance of the connecting member 3 is determined, and the displacement distance of the two guide wire needles 2 is also determined.

[0057] Furthermore, after the guide needle 2 is inserted, it is necessary to perform a wire hooking action (the specific wire hooking structure and wire hooking principle of the guide needle 2 are consistent with the prior art and are not described in detail here). When performing the wire hooking action, the guide needle 2 needs to be fixed relative to the closer 1. If the guide needle 2 moves relative to the closer 1, the wire hooking action may fail. Figures 4-5 A resilient snap buckle 1131 is provided on one side of the shell member 11 close to the connector 3, and a card interface 331 is provided on one side of the connector 3 close to the shell member 11. When the connector 3 is displaced along the axial direction of the closer 1 to meet the stop platform 111, the card interface 331 meets and engages with the resilient snap buckle 1131, so that the connector 3 and the shell member 11 are relatively fixed. At the same time, the wire needle 2 just moves to the position closest to the central axis L of the closer 1, and no relative displacement will occur between the connector 3, that is, the wire needle 2 is also fixed.

[0058] Further, after the guide wire needle 2 is inserted into the abdominal cavity and the hooking action is completed, it needs to be restored to the original position to bring out the end of the suture thread. Figures 4-5 The connecting member 3 is provided and also includes a first elastic member 31. The first elastic member 31 is preferably a spring, which abuts between the connecting member 3 and the stopping platform 111. When the connecting member 3 and the outer shell 11 are relatively fixed, the first elastic member 31 is compressed and deformed. When the guide needle 2 needs to be restored to its original position, the elastic buckle 1131 is pressed to disengage the elastic buckle 1131 from the card interface 331, and the connecting member 3 and the outer shell 11 are restored to freedom. Under the rebound action of the first elastic member 31, the connecting member 3 moves in the direction away from the wound, driving the guide needle 2 to recover and bringing out the suture thread at the same time.

[0059] Further, such as Figures 4-5 The outer shell 11 specifically includes a first cylindrical member 112. When the closure device 1 is in use, the first cylindrical member 112 is a member close to one end of the abdominal cavity, and is used to guide the closure device 1 to be inserted into the abdominal cavity; the outer shell 11 also includes a second cylindrical member 113. When the closure device 1 is in use, the second cylindrical member 113 is a member far away from one end of the abdominal cavity. The second cylindrical member 113 is connected and communicated with the first cylindrical member 112. In the present embodiment, the first cylindrical member 112 and the second cylindrical member 113 are in a snap-fit ​​relationship.

[0060] Furthermore, the stopping platform 111 is a step surface where the second cylindrical member 113 and the first cylindrical member 112 are connected, and the connecting member 3 is placed on the stopping platform 111 on a side close to the second cylindrical member 113 . In this embodiment, the connecting member 3 is placed in the second cylindrical member 113 .

[0061] Furthermore, in this embodiment, if Figures 4-5 The connection method between the guide pin 2 and the housing 11 is as follows: a channel 1121 is provided on the first cylindrical member 112, and the central axis m of the channel 1121 forms an angle α with the central axis L of the closer 1 (such as Figure 1 As shown), the second cylindrical member 113 is provided with a through hole 1132, which is coaxial with the channel 1121; the wire needle 2 is inserted into the second cylindrical member 113 through the through hole 1132, and is simultaneously inserted into the first cylindrical member 112 through the channel 1121, thereby achieving a sliding connection with the outer shell member 11.

[0062] Furthermore, in this embodiment, if Figures 4-5 The connection method between the wire needle 2 and the connecting member 3 is specifically as follows: the connecting member 3 is placed in the second cylindrical member 113, the connecting member 3 includes two slide rails 32, the two slide rails 32 are placed above the stopping platform 111, and both extend in the direction away from the centerline axis of the closer 1, and a first slider 21 is provided in the middle of the wire needle 2, and the first slider 21 is placed in the slide rail 32 to realize the sliding connection between the connecting member 3 and the wire needle 2.

[0063] Furthermore, in this embodiment, if Figures 4-5 The connecting member 3 also includes a column member 33, one end of the column member 33 away from the stopping platform 111 extends out of the second column member 113, so as to facilitate the application of a thrust load to the connecting member 3 outside the second column member 113. The two sides of one end of the stopping platform 111 of the column member 33 are respectively connected to the two slide rails 32, so that the connecting member 3 has an inverted T-shaped structure, which is convenient for transmitting the displacement to the slide rail 32.

[0064] Furthermore, in this embodiment, if Figures 4-5The connection between the connecting member 3 and the outer shell 11 is specifically as follows: the second cylindrical member 113 includes a slide groove 1133, and the slide groove 1133 extends along the direction of the central axis of the closer 1; the connecting member 3 also includes a second slider 321, and the second slider 321 is placed in the slide groove 1133 to achieve a sliding connection between the connecting member 3 and the outer shell 11;

[0065] Specifically, Figures 4-5 The second slider 321 is integrally arranged on the slide rail 32, and a second slider 321 is arranged on one side of each slide rail 32 close to the inner wall of the second column barrel member 113, and the slide groove 1133 is arranged on the inner wall of the second column barrel member 113, wherein the slide groove 1133 corresponds one-to-one with the second slider 321, so that the connecting member 3 can be displaced smoothly.

[0066] Furthermore, in order to further prevent the connection member 3 from tilting when it is displaced, as Figures 4-5 , a second column barrel member 113 is provided which also includes a guide column 1134, the guide column 1134 is arranged inside the second column barrel member 113, and extends along the direction of the central axis of the closer 1, with its upper end connected to the top of the second column barrel member 113, and its lower end connected to the stopping platform 111; the connecting member 3 also includes a guide hole 322, and the guide column 1134 passes through the guide hole 322. In the present embodiment, the guide hole 322 is also integrally provided on the slide rail 32; when the connecting member 3 undergoes relative displacement, the guide column 1134 guides and limits the displacement of the connecting member 3.

[0067] Further, such as Figures 4-5 In order to ensure that the elastic deformation force of the first elastic member 31 is released along the axial direction of the closer 1 and to prevent the first elastic member 31 from detaching, the first elastic member 31 is sleeved on the guide column 1134 and abuts between the guide hole 322 and the stop platform 111.

[0068] Further, such as Figures 4-5The closure device 1 also includes an insertion column 12, which is located at one end of the first column barrel member 112 away from the second column barrel member 113, and is fixedly connected to the first column barrel member 112, and is used to be inserted into the abdominal cavity when guiding the suture line; the closure device 1 also includes a support member 13, which is arranged along the extension direction of the insertion column 12, and one end of the support member 13 is fixedly connected to one end of the first column barrel member 112 away from the second column barrel member 113, and is inserted into the abdominal cavity with the insertion column 12 when guiding the suture line. The support member 13 is provided with a guide groove 131 for hanging the suture line, so as to facilitate the introduction of the suture line into the abdominal cavity, wherein the support member 13 The specific structure of the component 13 and the specific shape of the guide groove 131 are consistent with the prior art and will not be elaborated here; the closer 1 also includes a pull rod 14, which is placed in the first cylindrical component 112, and one end of which extends to be fixedly connected to the other end of the support component 13. When a tensile load is provided to the pull rod 14, the support component 13 is folded by the tensile force to form an umbrella-like structure, wherein the principle of how the support component 13 presents an umbrella-like structure is also consistent with the prior art and will not be elaborated here. The umbrella-like structure is used to prop up the suture, and when a pushing load is provided to the pull rod 14, the support component 13 is restored by the tensile force.

[0069] Further, such as Figures 4-5 A wire hanging pile 121 is also provided in the middle of the insertion column 12, and the wire hanging pile 121 is also used for hanging sutures; a wire passing hole 132 is also provided on the support member 13. When the support member 13 is in an umbrella-shaped structure, the suture passes through the wire passing hole 132 and is tensioned between the support member 13 and the wire hanging pile 121, reserving space for the hook to hook the wire. At the same time, the wire passing hole 132 is used for the tip of the guide needle 2 to extend into the umbrella-shaped structure, wherein the specific structure of the wire hanging pile 121 and the wire passing hole 132 is also consistent with the prior art, and will not be repeated here.

[0070] Further, such as Figures 4-5 , wire pulling grooves 15 are also provided on both sides of the middle part of the outer shell 11. After the suture is guided through the wire guide groove 131 and the wire hanging pile 121 in sequence, its two ends are hung in the wire pulling groove 15 to prevent the two ends of the suture from being inserted into the abdominal cavity along with the closure device 1. In this embodiment, the wire pulling groove 15 is a groove body provided on the rubber block and concave toward the rubber block, wherein the rubber block is fixed on both sides of the stopping platform 111, and the material properties of the rubber block are used to generate a certain friction force on the suture. When the middle section of the suture is sent into the abdominal cavity, the two ends of the suture continue to be hung in the wire pulling groove 15 under the action of the friction force. When the suture is clamped by the guide needle 2 and the end of the suture is led out of the abdominal cavity, the suture is separated from the wire pulling groove 15 under the action of a large force.

[0071] Further, in order to facilitate the operation of the pull rod 14, as Figures 4-5, the other end of the pull rod 14 is extended into the second cylindrical member 113, a slot 1135 is provided on the second cylindrical member 113, the slot 1135 extends along the axial direction of the pull rod 14, the closer 1 also includes a button 16, the button 16 is located outside the second cylindrical member 113, passes through the slot 1135 and is slidably connected to the other end of the pull rod 14, the sliding direction is perpendicular to the axial direction of the pull rod 14, and a hanging pile 161 is provided at a position corresponding to the inner wall of the button 16 and the slot 1135, and a hanging groove 1136 corresponding to the hanging pile 161 is provided at both the upper and lower ends of the inner wall of the slot 1135;

[0072] Specifically, when the button 16 is pressed and the hanging pile 161 is misaligned with the hanging groove 1136, the groove 1135 does not restrict the button 16. Applying external force to the button 16 can drive the button 16 to move along the groove 1135, thereby driving the pull rod 14 to move, and operating the support member 13 to prop up or lower it. When the hanging pile 161 on the button 16 corresponds to the hanging groove 1136, the groove 1135 restricts the button 16, and the button 16 is fixed relative to the second cylindrical member 113.

[0073] Further, such as Figures 4-5 The button 16 also includes a second elastic member 162, which is preferably a spring, abutting between the button 16 and the pull rod 14 to achieve the rebound of the button 16. When the hanging pile 161 corresponds to the hanging groove 1136, the second elastic member 162 drives the button 16 to rebound, fixes the position of the button 16, and thereby fixes the state of the pull rod 14.

[0074] Furthermore, in order to compact the structure of the fascia closure device, as Figures 4-5 The column member 33 is set to an inverted concave structure, so that the pull rod 14 can extend into the groove of the column member 33, making the structure of the device compact.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tissue closure device, characterized in that: The invention comprises: a closure device, which is used to introduce a suture into the abdominal cavity through a surgical incision and prop up the suture in the abdominal cavity; and a guide wire needle, which is slidably connected relative to the closure device and is used to pierce the abdominal cavity and clamp the propped up suture and then lead it out of the abdominal cavity. The closure device comprises a shell member, and the guide wire needle is slidably connected to the shell member so that the guide wire needle can be displaced in a direction deviating from the axial direction of the closure device by a certain angle; the closure device also comprises a connecting member, which is slidably connected to the shell member so that the connecting member can be displaced along the axial direction of the closure device, and the connecting member is slidably connected to the guide wire needle so that the guide wire needle can be displaced in a direction close to or away from the central axis of the closure device; when a pushing load is applied to the connecting member, the guide wire needle is driven to be displaced, and the displacement of the guide wire needle is decomposed into a displacement of the suture of the closure device close to or away from the suture device. The cam is provided with a first elastic member, which is in contact with the stopper platform and is adapted to move relative to the cam when the cam is in use. and a second cylindrical member, wherein when the closure is in use, the second cylindrical member is a member away from one end of the abdominal cavity, the second cylindrical member is connected and communicated with the first cylindrical member, the stopping platform is a step surface where the second cylindrical member and the first cylindrical member are connected, the connecting member is placed on a side of the stopping platform close to the second cylindrical member, a channel is provided on the first cylindrical member, the central axis of the channel forms an angle with the central axis of the closure, a through hole is provided on the second cylindrical member, and the through hole is coaxial with the channel; the guide wire needle is inserted into the second cylindrical member through the through hole, and at the same time, is inserted into the first cylindrical member through the channel to achieve a sliding connection with the outer shell member, the connecting member is placed in the second cylindrical member, the connecting member includes a slide rail, the slide rail extends in a direction away from the central axis of the closure, a first slider is provided in the middle of the guide wire needle, and the first slider The cam is placed in the slide rail to achieve the sliding connection between the connecting member and the guide needle, the connecting member also includes a column member, one end of the column member away from the stop platform extends out of the second column member, and one end close to the stop platform is connected to the slide rail, the second column member includes a slide groove, and the slide groove extends along the direction of the central axis of the closure device; the connecting member also includes a second sliding block, the second sliding block is placed in the slide groove to achieve the sliding connection between the connecting member and the shell member, the second column member also includes a guide column, and the guide column extends along the direction of the central axis of the closure device; the connecting member also includes a guide hole, the guide column passes through the guide hole, and the closure device also includes: an insertion column, the insertion column is located at one end of the first column member away from the second column member, is fixedly connected to the first column member, and is used for inserting into the abdominal cavity when guiding the suture; and a support member, the support member is arranged along the extension direction of the insertion column, one end of the support member is fixedly connected to the end of the first column tube member away from the second column tube member, and is inserted into the abdominal cavity along with the insertion column when guiding the suture, and the support member is provided with a guide groove for hanging the suture to facilitate the introduction of the suture into the abdominal cavity; and a pull rod, wherein the pull rod is placed in the first column tube member, and one end of the pull rod extends to be fixedly connected to the other end of the support member. When a tensile load is provided to the pull rod, the support member is folded by the tensile force to form an umbrella-like structure to hold up the suture. When a pushing load is provided to the pull rod, the support member is restored by the tensile force. A hanging wire pile is also provided in the middle of the insertion column, and the hanging wire pile is also used to hang the suture. A wire passing hole is also provided on the support member. When the support member is in an umbrella-like structure, the suture passes through the wire passing hole and is tensioned between the support member and the hanging wire pile, reserving space for the hook. At the same time, the wire passing hole is used for the tip of the guide needle to extend into the umbrella-like structure. A wire pulling groove, after the suture is guided through the wire guide groove and the wire hanging pile in sequence, its two ends are hung in the wire pulling groove to prevent the two ends of the suture from being inserted into the abdominal cavity along with the closure device, and the other end of the pull rod extends into the second cylindrical member; a slot is provided on the second cylindrical member, and the slot extends along the axial direction of the pull rod; the closure device also includes a button, which is located outside the second cylindrical member, passes through the slot and is slidably connected with the other end of the pull rod, and a hanging pile is provided at a position corresponding to the inner wall of the slot, and hanging grooves corresponding to the hanging pile are provided at the upper and lower ends of the inner wall of the slot, and the button also includes a second elastic member, and the second elastic member abuts between the button and the pull rod.

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