Minimally invasive fascia closer

Abstract

The minimally invasive fascia closer comprises a closing fixing piece and a suture threading device, the suture threading device penetrates through the closing fixing piece, the closing fixing piece comprises a suture clamping block, a fixing handle and a pull rod, sliding ways are arranged in the fixing handle in parallel, the pull rod comprises a telescopic rod and a guide rod, the guide rod moves along the sliding ways, the top end of the telescopic rod is connected with the guide rod, and the suture threading device penetrates through the suture clamping block. The tail end of the telescopic rod extends out of the fixed handle along the slideway and is connected with the wire clamping block; the fixed handle comprises a fixed section and a telescopic section, the fixed section is in sliding connection with the telescopic section, a pull wire frame is arranged on the telescopic section, and the outer side of the fixed section is wrapped with an air cushion; the length of the pull rod and the length of the fixed handle can be flexibly adjusted, so that it is ensured that the pull wire frame can cover and be fixed to a surgical incision, meanwhile, the air cushion capable of being inflated and deflated is wrapped outside the closed fixing piece, the maximum diameter of the fixed handle can be adjusted, the air cushion can be tightly attached to the surgical incision, and the surgical incision can be fixed conveniently. And tissue damage or bleeding caused by infirm fixation is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a minimally invasive fascia closer. Background Art

[0002] A minimally invasive fascia closer is a device specifically designed to close muscles and fascia during minimally invasive surgery. It consists of a closing fastener and a suture passer. When using the minimally invasive fascia closer, the doctor first needs to accurately insert the closing fastener into the surgical incision, and then operate to open the wire drawing frame of the closing fastener to ensure that the wire drawing frame can completely cover the muscle and fascia areas to be closed. Next, the doctor will adjust the position of the wire drawing frame to ensure that it fits perfectly with the abdominal wall, and then lock the wire drawing frame to fix the closing fastener. After the closing fastener is stably fixed, the doctor will use the suture passer to assist in completing the suture operation.

[0003] However, it is worth noting that due to the specific conditions of the surgical site and the surgical incision varying, the size of the closing fastener of the existing minimally invasive fascia closer is fixed and cannot be adjusted in real time during use. This causes the doctor to possibly need to select or replace closing fasteners of different sizes according to different surgical incision conditions during the operation, which undoubtedly brings certain inconvenience to the operation process. Summary of the Invention

[0004] The purpose of the utility model is to provide a minimally invasive fascia closer aiming at the problems existing in the prior art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] A minimally invasive fascia closer includes a closing fastener and a suture passer. The suture passer penetrates through the closing fastener. The closing fastener includes a wire clamping block, a fixed handle, and a pull rod. A slideway is provided in parallel in the fixed handle. The pull rod includes a telescopic rod and a guiding rod. The guiding rod moves along the slideway. The top end of the telescopic rod is connected to the guiding rod, and the end of the telescopic rod extends out of the fixed handle along the slideway and is connected to the wire clamping block. The fixed handle includes a fixed section and a telescopic section. The fixed section and the telescopic section are slidably connected. A wire drawing frame is provided on the telescopic section, and an air cushion is wrapped outside the fixed section.

[0007] The closing fastener in the utility model can flexibly adjust the lengths of the pull rod and the fixed handle according to the specific conditions of the surgical incision, so as to ensure that the wire drawing frame can accurately cover and be fixed on surgical incisions of different sizes and shapes. This design not only improves the accuracy and efficiency of the operation, but also greatly reduces the surgical risks caused by unstable fixation.

[0008] Meanwhile, the utility model wraps the closing fastener with the inflatable and deflatable air cushion, so that the maximum diameter of the fixed handle can be adjusted as needed. The softness and deformability of the air cushion enable it to closely fit the surgical incision, effectively preventing tissue damage or bleeding caused by insecure fixation. This personalized fitting method not only improves the comfort of the patient but also helps reduce the occurrence of postoperative complications.

[0009] Preferably, the telescopic rod includes an internally threaded tube and an externally threaded tube. The externally threaded tube is connected to the guide rod through the internally threaded tube. The wire clamping block includes a base and a rotating head. The base and the rotating head are rotatably connected, and the base is rotatably connected to the externally threaded tube.

[0010] By rotating the rotating head to rotate the internally threaded tube, the total length of the telescopic rod is changed, enabling the wire clamping block to further extend.

[0011] Preferably, a plurality of positioning holes are provided on the telescopic section. The positioning holes are arranged at intervals along the length direction of the fixed handle. A through hole is provided on the fixed section. The fixed handle further includes a positioning screw. The positioning screw passes through the through hole and is connected to the positioning hole. The fixed section is detachably connected to the telescopic section through the positioning screw.

[0012] By rotating the positioning screw, the telescopic section and the fixed section are separated. After the wire clamping block extends, the telescopic section is synchronously moved, enabling the wire pulling frame to move along with the wire clamping block.

[0013] Preferably, the wire pulling frame includes a pair of connecting rod groups. The connecting rod groups are respectively located on both sides of the telescopic section. The connecting rod group includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the base, and the other end is hinged to the second connecting rod. The second connecting rod is hinged to the telescopic section.

[0014] When the wire clamping block is away from the fixed handle, the base will straighten the connecting rod group, enabling the closing fastener to be inserted into the surgical incision. When the wire clamping block is close to the fixed handle, the base will fold the connecting rod group, enabling the wire pulling frame to unfold.

[0015] Preferably, the fixed section includes a base, a grip, and a guiding cylinder. The guiding cylinder and the grip are respectively arranged on both sides of the base. The air cushion is wrapped outside the guiding cylinder. A first inflation hole is provided on the air cushion. A second inflation hole is provided on the base. The first inflation hole is communicated with the second inflation hole through a hose.

[0016] After the closure fixture is inserted into the surgical incision, the air cushion is inflated through the second inflation hole. After the air cushion expands, it can closely fit the surgical incision, improve the stability of the closure fixture, and seal the surgical incision during the operation.

[0017] Preferably, a first lead hole is provided on the base, a second lead hole is provided on the guiding cylinder body, the air cushion is located between the first lead hole and the second lead hole, and a suture passage is provided between the first lead hole and the second lead hole.

[0018] Preferably, the suture passage and the pull rod are arranged in a staggered manner, and the lead needle of the suture passer passes through the fixed section through the suture passage.

[0019] Preferably, a sliding groove is provided on the grip, a push key is arranged in the sliding groove, the push key moves along the sliding groove, and the push key is connected to the guiding rod through an elastic component.

[0020] The guiding rod is moved by pushing the push key, and the moving path of the push key is restricted by the sliding groove.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] The closure fixture in the present utility model can flexibly adjust the lengths of the pull rod and the fixed handle according to the specific conditions of the surgical incision, so as to ensure that the wire pulling frame can accurately cover and be fixed on surgical incisions of different sizes and shapes. This design not only improves the accuracy and efficiency of the operation, but also greatly reduces the surgical risks caused by unstable fixation.

[0023] At the same time, the present utility model is wrapped with an air cushion that can be inflated and deflated outside the closure fixture, so that the maximum diameter of the fixed handle can be adjusted as needed. The softness and deformability of the air cushion enable it to closely fit the surgical incision, effectively preventing tissue damage or bleeding caused by insecure fixation. This personalized fitting method not only improves the comfort of the patient, but also helps to reduce the occurrence of postoperative complications. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the closure fixture in the embodiment of the present utility model;

[0025] Figure 2 It is a schematic structural diagram of the suture passer in the embodiment of the present utility model;

[0026] Figure 3 It is a schematic structural diagram of the pull rod and the wire clamping block in the embodiment of the present utility model;

[0027] Figure 4This is a partial structural schematic diagram of the telescopic section in the embodiment of the present utility model;

[0028] In the figure: 1, suture passer; 2, telescopic section; 201, positioning screw; 202, wire clamping plate; 3, base; 301, first wire clamping groove; 4, grip; 401, chute; 5, guiding cylinder; 501, second lead hole; 6, air cushion; 601, hose; 7, pull rod; 701, guiding rod; 702, internal threaded pipe; 703, external threaded pipe; 704, push key; 8, wire pulling frame; 801, first connecting rod; 802, second connecting rod; 9, rotating head; 901, second wire clamping groove; 10, base. Detailed implementation manners

[0029] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0031] As Figures 1 to 4 shown, the specific solution of the embodiment is as follows: A minimally invasive fascia closer includes a closing fastener and a suture passer 1. The closing fastener includes a wire clamping block, a fixed handle, and a pull rod 7. A slideway is provided in parallel in the fixed handle. The fixed handle includes a fixed section, a telescopic section 2, and a positioning screw 201. The fixed section includes a base 3, a grip 4, and a guiding cylinder 5. The guiding cylinder 5 and the grip 4 are respectively arranged on both sides of the base 3. The guiding cylinder 5 and the grip 4 are arranged in parallel. The telescopic section 2 is slidably connected to the guiding cylinder 5.

[0032] First wire clamping grooves 301 are further respectively provided on both sides of the base 3. The first wire clamping grooves 301 are perpendicular to the guiding cylinder 5.

[0033] An air cushion 6 is wrapped outside the guiding cylinder 5. A first inflation hole is provided on the air cushion 6. A second inflation hole is provided on the base 3. The first inflation hole and the second inflation hole are communicated through a hose 601.

[0034] The telescopic section 2 is provided with a plurality of positioning holes, which are arranged at intervals along the length direction of the fixed handle. The guiding cylinder body 5 is provided with through holes, and the positioning screws 201 pass through the through holes and are connected with the positioning holes. The fixed section is detachably connected with the telescopic section 2 through the positioning screws 201.

[0035] One end of the slideway is located in the grip 4, and the other end passes through the base 3 and the guiding cylinder body 5 and extends to the end of the telescopic section 2. The wire clamping block is located at the end of the telescopic section 2.

[0036] The pull rod 7 includes a telescopic rod and a guiding rod 701. The guiding rod 701 is located in the grip 4 and moves along the slideway. The telescopic rod includes an internally threaded tube 702 and an externally threaded tube 703. The externally threaded tube 703 is connected with the guiding rod 701 through the internally threaded tube 702. The externally threaded tube 703 extends out of the guiding cylinder body 5 along the slideway. The wire clamping block includes a base 10 and a rotating head 9. The rotating head 9 is provided with a second wire clamping groove 901 on the side back against the base 10. The base 10 and the rotating head 9 are rotatably connected, and the base 10 is rotatably connected with the externally threaded tube 703.

[0037] The telescopic section 2 is provided with a wire pulling frame 8 and a wire clamping plate 202. The wire pulling frame 8 includes a pair of connecting rod groups, which are respectively located on both sides of the telescopic section 2. The wire clamping plates 202 are also respectively located on both sides of the telescopic section 2. The connecting rod group includes a first connecting rod 801 and a second connecting rod 802. One end of the first connecting rod 801 is hinged with the base 10, and the other end is hinged with the second connecting rod 802. One end of the second connecting rod 802 is hinged with the first connecting rod 801, and the other end is hinged with the telescopic section 2.

[0038] The grip 4 is provided with a sliding groove 401. A push key 704 is arranged in the sliding groove 401 and moves along the sliding groove 401. The push key 704 is connected with the guiding rod 701 through an elastic component. The elastic component adopts a spring. Limit grooves are arranged on both sides of the sliding groove 401, and limit blocks are arranged on both sides of the push key 704. The limit blocks are located in the limit grooves. The sliding groove 401 restricts the movement of the limit blocks through the limit grooves. After the push key 704 is pressed, since the limit blocks are disengaged from the limit grooves, the push key 704 can be moved along the sliding groove 401 at this time.

[0039] The base 3 is provided with a first wire leading hole, and the guiding cylinder body 5 is provided with a second wire leading hole 501. The air cushion 6 is located between the first wire leading hole and the second wire leading hole 501. A suture channel is arranged between the first wire leading hole and the second wire leading hole 501. The suture channel and the pull rod 7 are arranged in a staggered manner to avoid interference between the suture passer 1 and the pull rod 7. The leading needle of the suture passer 1 passes through the fixed section through the suture channel, so that the suture passer 1 can penetrate the closing fastener.

[0040] The usage method of this embodiment is as follows:

[0041] Before inserting into the surgical incision, the closing fastener is in the shape of a long rod. At this time, the distance between the wire clamping block and the fixed handle is the largest, the wire pulling frame 8 is in a contracted state, and the first connecting rod 801 and the second connecting rod 802 are parallel to each other.

[0042] Then, according to the specific situation of the surgical incision, determine the length that the fixed handle needs to be adjusted. Before adjusting the length, first remove the positioning screw 201. When adjusting the length, on the one hand, move the telescopic section 2 along the external thread tube 703 by a certain distance, and on the other hand, rotate the rotating head 9 so that the rotating head 9 drives the external thread tube 703 to rotate, so as to synchronously lengthen or shorten the lengths of the fixed handle and the pull rod 7. After adjustment, use the positioning screw 201 to fix the telescopic section 2 and the fixed section again.

[0043] During the process of adjusting the length, since the base 10 is hinged to the wire pulling frame 8, it will not rotate. Moreover, the base 10 and the telescopic section 2 will drive the wire pulling frame 8 to move together, so that the use state of the wire pulling frame 8 is not affected after the length of the closing fastener is changed.

[0044] After inserting the closing fastener into the surgical incision and adjusting the posture of the closing fastener, use the push key 704 to move the pull rod 7, so that the pull rod 7 drives the wire clamping block to move towards the direction close to the fixed handle. During this process, the wire pulling frame 8 will gradually fold. When the distance between the wire clamping block and the fixed handle is the smallest, the wire pulling frame 8 will be completely folded. At this time, the wire pulling frame 8 is triangular, and the second connecting rod 802 is perpendicular to the telescopic section 2. Finally, use a syringe to inflate the second inflation hole so that the air cushion 6 fits at the surgical incision to facilitate the use of the suture passer 1 during subsequent suturing.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A minimally invasive fascia closer, comprising a closing fixture and a suture passer, wherein the suture passer is disposed through the closing fixture, and is characterized in that, The closing firmware includes a wire clamping block, a fixed handle and a pull rod. A slideway is provided in parallel inside the fixed handle. The pull rod includes a telescopic rod and a guide rod. The guide rod moves along the slideway. The top end of the telescopic rod is connected to the guide rod, and the end of the telescopic rod extends out of the fixed handle along the slideway and is connected to the wire clamping block. The fixed handle includes a fixed section and a telescopic section. The fixed section and the telescopic section are slidably connected. A wire pulling frame is provided on the telescopic section, and an air cushion is wrapped outside the fixed section.

2. The minimally invasive fascia closer according to claim 1, characterized in that, The telescopic rod includes an inner threaded tube and an outer threaded tube. The outer threaded tube is connected to the guide rod through the inner threaded tube. The wire clamping block includes a base and a rotating head. The base and the rotating head are rotatably connected, and the base is rotatably connected to the outer threaded tube.

3. A minimally invasive fascia closure device according to claim 1, characterized in that, A plurality of positioning holes are provided on the telescopic section. The positioning holes are arranged at intervals along the length direction of the fixed handle. A through hole is provided on the fixed section. The fixed handle further includes a positioning screw. The positioning screw passes through the through hole and is connected to the positioning hole. The fixed section is detachably connected to the telescopic section through the positioning screw.

4. A minimally invasive fascia closure device according to claim 2, characterized in that, The wire pulling frame includes a pair of connecting rod groups. The connecting rod groups are respectively located on both sides of the telescopic section. The connecting rod group includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the base, and the other end is hinged to the second connecting rod. The second connecting rod is hinged to the telescopic section.

5. The minimally invasive fascia closer according to claim 1, wherein, The fixed section includes a base, a grip and a guide cylinder. The guide cylinder and the grip are respectively arranged on both sides of the base. The air cushion is wrapped outside the guide cylinder. A first inflation hole is provided on the air cushion, and a second inflation hole is provided on the base. The first inflation hole and the second inflation hole are communicated through a hose.

6. The minimally invasive fascia closure device according to claim 5, characterized in that, A first lead hole is provided on the base, and a second lead hole is provided on the guide cylinder. The air cushion is located between the first lead hole and the second lead hole. A suture channel is provided between the first lead hole and the second lead hole.

7. The minimally invasive fascia closer according to claim 6, wherein The suture channel and the pull rod are arranged in an alternating manner. The lead needle of the suture passer passes through the fixed section through the suture channel.

8. A minimally invasive fascia closure device according to claim 5, characterized in that, A chute is provided on the grip. A push key is arranged in the chute. The push key moves along the chute. The push key is connected to the guide rod through an elastic component.

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