Fascia suturing device with locking assembly

Abstract

The present invention discloses a fascia suturing device with a locking assembly, including a puncture device, a suture device and a thread hook device, the suture device is installed on the puncture device, the thread hook device is detachably connected to the puncture device, the thread hook device includes a shell, a thread hook needle assembly is movably arranged in the shell, a locking assembly is connected in the shell, the locking assembly includes a locking block movably arranged in the shell, a front locking head of the locking block, an elastic member that pushes the locking block outward is connected to the locking block, the thread hook needle assembly has a push block, the thread hook needle assembly moves down so that the push block contacts the locking block and pushes the locking block to retract inward; the puncture device has a locking hole, the thread hook device is inserted into the puncture device and the locking head enters the locking hole to lock the shell on the puncture device. Through the above method, the fascia suturing device with a locking assembly of the present invention fixes the position of the thread hook device during the thread hooking operation, avoids the thread hook device moving up and down during the operation and causing suturing failure, and improves the suturing effect.

Description

Technical Field

[0001] The invention relates to the field of surgical instruments, in particular to a fascia suturing device with a locking component. Background Art

[0002] With the development of medical device technology, minimally invasive surgery, which has the advantages of small trauma, fast recovery, and high cure rate, has also developed rapidly and has been widely used in the field of surgery. For minimally invasive surgery, it is inevitable to establish a channel on the patient, and the suturing of the patient's trauma after surgery is still a major problem. Because there is no endoscope in the cavity to provide relevant vision when suturing the last trauma after surgery, it is more difficult to sew the inner wall wound, so most people only sew the outer skin wound. However, the wound in the abdomen is not conducive to monitoring. If the wound on the inner wall is not sutured, it is very easy to have wound infection and lesions, and even cause hernia.

[0003] At present, the thread hooks on the market are all used as an accessory in the minimally invasive fascia suture device. During the operation, the fascia suture device needs to be inserted into the wound and then the thread hook device is used for thread hooking and suturing. Since the thread hook device has no locking structure above and below the fascia suture device, when the active lock of the thread hook device is pressed to hook the thread, the thread hook device is easy to move up and down, resulting in the inability to hook the suture smoothly, which in turn causes suturing failure, delaying the progress of the operation. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a fascia suturing device with a locking component, which fixes the position of a thread hook during the thread hooking operation to avoid suturing failure caused by the thread hook moving up and down during the operation, thereby improving the suturing effect.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a fascia suturing device with a locking assembly, comprising a puncture device, a suture device and a thread hook device, wherein the suture device is installed on the puncture device, and the thread hook device is detachably connected to the puncture device, and the thread hook device comprises a shell, and a thread hook needle assembly that moves up and down in the shell is movably arranged in the shell, and a locking assembly is connected in the shell, and the locking assembly comprises a locking block movably arranged in the shell, and the front end of the locking block has a locking head extending from the shell, and the locking block is connected to an elastic member that pushes the locking block outward, and the thread hook needle assembly has a push block, and the thread hook needle assembly moves downward to make the push block contact with the locking block and push the locking block to retract inward;

[0006] The puncture device has a locking hole that matches the locking head. The thread hook is inserted into the puncture device and the locking head enters the locking hole to lock the shell on the puncture device. The push block presses down the locking block to retract the locking block inward, so that the locking head is disengaged from the locking hole to unlock the shell and the puncture device.

[0007] In a preferred embodiment of the present invention, the locking block has a through hole therein, and a first push surface is provided on a side surface of the through hole. After the push block enters the through hole, it pushes the first push surface to retract the locking block inward.

[0008] In a preferred embodiment of the present invention, the number of the locking blocks is two, and the two locking blocks are movably connected and arranged in opposite directions.

[0009] In a preferred embodiment of the present invention, the left side surface of the through hole has a first groove, the lower side surface has a second groove, and the two locking blocks are movably buckled so that the first groove of the locking block is movably connected to the second groove of the other locking block.

[0010] In a preferred embodiment of the present invention, the locking block is connected to a mounting post on the side opposite to the locking head, one end of the elastic member is connected to the mounting post, and the other end is connected to the mounting hole of another locking block.

[0011] In a preferred embodiment of the present invention, the lower end of the push block has a second push surface, and the push block moves downward so that the second push surface contacts the first push surface, and the second push surface pushes the first push surface so that the two locking blocks retract inward synchronously, and the push block is separated from the locking block so that the locking block is pushed outward by the elastic member.

[0012] In a preferred embodiment of the present invention, the thread hook needle assembly includes a handle, a thread hook needle is provided in the handle along the vertical direction, the thread hook needle and the handle are connected by a first spring, the push block is connected below the handle, and the two are connected by a second spring, and the thread hook needle passes through the push block.

[0013] In a preferred embodiment of the present invention, the locking hole is located on a connecting bracket of the puncture device, and the connecting bracket has a contact surface, and the contact surface is located above the locking hole. The thread hook is inserted into the puncture device so that the locking head passes through the contact surface and then enters the locking hole.

[0014] In a preferred embodiment of the present invention, the contact surface is an arc-shaped contact surface, the locking hole is located below the arc-shaped contact surface, and after the locking head contacts the contact surface, the locking head is pushed inward by the contact surface. After the locking head is separated from the contact surface, the locking head is pushed into the locking hole by the elastic member.

[0015] In a preferred embodiment of the present invention, the lower end of the shell has an inwardly inclined contact surface, the locking head extends out of the inclined contact surface, and the thread hook is inserted into the puncture device so that the inclined contact surface contacts the arc-shaped contact surface.

[0016] The beneficial effect of the present invention is that the fascia suturing device with a locking component of the present invention fixes the position of the thread hook during the thread hooking operation, thereby avoiding the thread hook moving up and down during the operation to cause suturing failure and improving the suturing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0018] Figure 1 It is a structural schematic diagram of a preferred embodiment of a fascia suturing device with a locking assembly of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the trocar;

[0020] Figure 3 It is a schematic diagram of the local structure of the trocar;

[0021] Figure 4 It is a schematic diagram of the local structure of the stapler;

[0022] Figure 5 1. It is a schematic diagram of the locking block extending state;

[0023] Figure 6 1. It is a schematic diagram of the state in which the push block pushes the locking block to retract;

[0024] Figure 7 This is a schematic diagram of the locking assembly.

[0025] Figure 8 It is a schematic diagram of the structure of the locking block;

[0026] Figures 9 to 14 is a schematic diagram of the working principle of a fascia suturing device with a locking component;

[0027] The markings of the components in the accompanying drawings are as follows: 1. puncture device, 11. connecting bracket, 12. locking hole, 13. contact surface, 2. suture device, 3. thread hook device, 31. shell, 311. inclined contact surface, 32. thread hook needle assembly, 321. push block, 322. second push surface, 323. handle, 324. thread hook needle, 325. first spring, 326. second spring, 33. locking assembly, 331. locking block, 332. locking head, 333, elastic member, 334, through hole, 335, first push surface, 336, first groove, 337, second groove, 338, mounting column, 339, mounting hole. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention are described clearly and completely below. 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.

[0029] See also Figures 1 to 8 A fascia suturing device with a locking assembly comprises a puncture device 1, a suture device 2 and a thread hook device 3, wherein the suture device 2 is mounted on the puncture device 1, and the thread hook device 3 is detachably connected to the puncture device 1, and the thread hook device 3 comprises a shell 31, wherein a thread hook needle assembly 32 is movably arranged in the shell 31 and moves up and down in the shell 31, and a locking assembly 33 is connected in the shell 31, and the locking assembly 33 comprises a locking block 331 movably arranged in the shell 31, and a locking head 332 extending from the shell is provided at the front end of the locking block 331, and an elastic member 333 for pushing the locking block 331 outward is connected to the locking block 331, and the thread hook needle assembly 32 comprises a pushing block 321, and the thread hook needle assembly 321 moves downward to make the pushing block 32 contact with the locking block 33 and push the locking block 331 to retract inward;

[0030] The puncture device 1 has a locking hole 12 that matches the locking head 332. The thread hook 3 is inserted into the puncture device 1 and the locking head 332 enters the locking hole 12 to lock the housing 31 on the puncture device 1. The push block 32 presses down the locking block 331 to retract the locking block 331 inward, so that the locking head 332 is disengaged from the locking hole 12 to unlock the housing 3 from the puncture device 1. The structure of the rest of the puncture device 1 is basically the same as that of the existing puncture device 1, and the structure of the suture device 2 is the same as that of the existing suture device.

[0031] In addition, the locking block 331 has a through hole 334 therein, and a first push surface 335 is formed on the side surface of the through hole 334. After the push block 321 enters the through hole 334, it pushes the first push surface 335 to retract the locking block 331 inward.

[0032] In addition, there are two locking blocks 331 , and the two locking blocks 331 are movably connected and arranged in opposite directions.

[0033] In addition, a first groove 336 is formed on the left side of the through hole 334 and a second groove 337 is formed on the lower side. The two locking blocks 331 are movably buckled so that the first groove 336 of the locking block 1 is movably connected with the second groove 337 of the other locking block.

[0034] In addition, the locking block 331 is connected to a mounting column 338 on the side relative to the locking head 332. One end of the elastic member 333 is connected to the mounting column 338, and the other end is connected to the mounting hole 339 of another locking block. The elastic member 333 is a spring.

[0035] In addition, the lower end of the push block 321 has a second push surface 322. When the push block 321 moves downward, the second push surface 322 contacts the first push surface 335. The second push surface 322 pushes the first push surface 335 so that the two locking blocks 331 retract inward synchronously. The push block 321 is separated from the locking block 331 so that the locking block 331 is pushed outward by the elastic member 333.

[0036] In addition, the thread hooking needle assembly 32 includes a handle 323, in which a thread hooking needle 324 is provided in the vertical direction. The thread hooking needle 324 and the handle 323 are connected by a first spring 325. The push block 321 is connected below the handle 324, and the two are connected by a second spring 326. The thread hooking needle 324 passes through the push block 321.

[0037] In addition, the locking hole 12 is located on the connecting bracket 11 of the puncture device 1. The connecting bracket 11 has a contact surface 13. The contact surface 13 is located above the locking hole 12. The thread hook 3 is inserted into the puncture device 1 so that the locking head 332 passes through the contact surface 13 and enters the locking hole 12.

[0038] In addition, the contact surface 13 is an arc-shaped contact surface, and the locking hole 12 is located below the arc-shaped contact surface. After the locking head 332 contacts the contact surface 13, the locking head 332 is pushed inward by the contact surface 13. After the locking head 332 separates from the contact surface 13, the locking head 332 is pushed into the locking hole 12 by the elastic member 333.

[0039] In addition, the lower end of the housing 1 has an inwardly inclined contact surface 311 , and the locking head 332 extends out of the inclined contact surface 311 . The thread hook 3 is inserted into the puncture device 1 so that the inclined contact surface 311 contacts the contact surface 13 .

[0040] The specific working principle of the fascia suturing device with a locking assembly of the present invention is as follows: Figures 9 to 11 As shown, after completing all the preparations before the postoperative hook thread suturing, the hook thread device 3 is inserted along the guide hole on the puncture device 1, and the hook thread needle 324 on the hook thread device 3 pierces the puncture groove at the upper end of the puncture sleeve and enters the guide hole on the suturing device 2, and then pierces the puncture groove at the lower end of the puncture sleeve, and then penetrates the abdominal wall tissue, and continues to insert the hook thread device 3, the hook thread needle 324 passes through the lower layer of the abdominal wall tissue and enters the hook thread hole of the movable bracket. At the same time, the inclined contact surface 311 on the hook thread device 3 begins to contact the contact surface 13 of the connecting bracket 11, and the locking head 332 on the inclined contact surface 311 is squeezed by the contact surface 13 and retracted inwardly, the hook thread device 3 continues to be inserted into place, the contact surface 13 is separated from the locking head 332, and due to the thrust of the elastic member 333, the locking block 331 is pushed outward, and the locking head 332 is correspondingly inserted into the locking hole 12, so that the shell 31 is fixedly connected to the puncture device 1, and the hook thread device 3 cannot move up and down, thereby realizing the locking of the hook thread device 3; as shown Fig.12When the handle 323 is pushed downward, the handle 323 pushes the thread hooking needle 324 downward until the thread hooking needle 324 hooks the suture thread. When the thread hooking needle 324 hooks the suture thread, the elastic buckle on the handle 323 just cooperates with the card slot of the shell, locking the thread hooking needle assembly 32. Since the pushing block 321 and the handle move downward synchronously, the second pushing surface 322 on the pushing block 321 contacts the first pushing surface 335 on the two locking blocks 331 and pushes the two locking blocks 331 to retract inward. When the thread hooking needle assembly 32 is locked, the two locking blocks 331 have been completely retracted due to the action of the pushing block 321, and the locking head 332 is separated from the locking hole 12. At this time, the shell 31 is separated from the puncture device 1. Fig.13 As shown, at this time, the thread hook 3 can be pulled out along the puncture device 1, and the suture thread is brought out synchronously, and the elastic buckle on the handle 324 is pressed again, and the thread hook needle assembly 32 can move automatically again, and the above steps are repeated. Fig.14 As shown, hook out the suture on the other side, remove all instruments, and complete the suture.

[0041] Different from the prior art, the fascia suturing device with a locking assembly of the present invention fixes the position of the thread hook during the thread hooking operation, thereby preventing the thread hook from moving up and down during the operation and causing suturing failure, thereby improving the suturing effect.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fascia suturing device with a locking assembly, comprising a puncture device, a suturing device and a thread hook, wherein the suturing device is mounted on the puncture device, the thread hook is detachably connected to the puncture device, the thread hook comprises a shell, a thread hook needle assembly is movably arranged in the shell and moves up and down in the shell, and is characterized in that: The outer shell is connected with a locking assembly, the locking assembly includes a locking block movably arranged in the outer shell, the front end of the locking block has a locking head extending from the outer shell, the locking block is connected with an elastic member for pushing the locking block outward, the thread hooking needle assembly has a pushing block, the thread hooking needle assembly moves downward so that the pushing block contacts the locking block and pushes the locking block to retract inward; The piercer is provided with a locking hole that cooperates with the locking head, the hook wire device is inserted into the piercer and the locking head enters the locking hole to lock the shell on the piercer, the push block presses down the locking block to retract the locking block inwardly, so that the locking head is disengaged from the locking hole to unlock the shell and the piercer, the locking block is provided with a through hole, the side surface of the through hole is provided with a first push surface, and after the push block enters the through hole, it pushes the first push surface to retract the locking block inwardly, the number of the locking blocks is 2, the two locking blocks are movably connected and arranged in opposite directions, the left side surface of the through hole is provided with a first groove, and the lower side surface is provided with a second groove, the two locking blocks are movably buckled so that the first groove of the locking block is movably connected with the second groove of the other locking block, the locking block is connected with a mounting post on the side relative to the locking head, one end of the elastic member is connected to the mounting post, and the other end is connected to the mounting hole of the other locking block.

2. The fascia suturing device with a locking assembly according to claim 1, characterized in that: The lower end of the push block has a second push surface, and the push block moves downward so that the second push surface contacts the first push surface, and the second push surface pushes the first push surface so that the two locking blocks retract inward synchronously, and the push block separates from the locking block so that the locking block is pushed outward by the elastic member.

3. The fascia suturing device with a locking assembly according to claim 2, characterized in that: The thread hook needle assembly includes a handle, a thread hook needle is arranged in the handle in a vertical direction, the thread hook needle and the handle are connected by a first spring, the push block is connected below the handle, and the two are connected by a second spring, and the thread hook needle passes through the push block.

4. The fascia suturing device with a locking assembly according to any one of claims 1 to 3, characterized in that: The locking hole is located on the connection bracket of the trocar, and the connection bracket has a contact surface, and the contact surface is located above the locking hole. The thread hook is inserted into the trocar so that the locking head passes through the contact surface and then enters the locking hole.

5. The fascia suturing device with a locking assembly according to claim 4, characterized in that: The contact surface is an arc-shaped contact surface, and the locking hole is located below the arc-shaped contact surface. After the locking head contacts the contact surface, the locking head is pushed inward by the contact surface. After the locking head is separated from the contact surface, the locking head is pushed into the locking hole by the elastic member.

6. The fascia suturing device with a locking assembly according to claim 5, characterized in that: The lower end of the shell has an inwardly inclined contact surface, the locking head extends out of the inclined contact surface, and the thread hook is inserted into the puncture device so that the inclined contact surface contacts the arc-shaped contact surface.

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