An ultrasound-guided minimally invasive Achilles tendon suturing navigation device

Abstract

This invention discloses an ultrasound-guided minimally invasive Achilles tendon suturing navigation device, belonging to the field of medical device technology. It includes a clamp body structure and two navigation mechanisms. The clamp body structure includes a connecting shaft, a clamp handle, and clamp heads. The clamp handle and clamp heads are connected by the connecting shaft. The clamp heads are located on the clamp handle, and there are two clamp handles and two clamp heads. The two navigation mechanisms are located on the two clamp heads respectively, and the two navigation mechanisms on the two clamp heads are interconnected. In use, ultrasound is used preoperatively to determine the course of the sural nerve and its accompaniment to the small saphenous vein to avoid intraoperative injury. During the procedure, the position and thickness of the Achilles tendon are confirmed under ultrasound guidance. Simultaneously, the navigation mechanism is passed through the Achilles tendon at an appropriate position, fixed, and the needle core is removed. Finally, the suture is passed through a cannula.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an ultrasound-guided minimally invasive Achilles tendon suturing navigation device. Background Technology

[0002] Achilles tendon rupture is a common foot and ankle injury, typically occurring approximately 6 cm proximal to the tendon's insertion point on the calcaneus. It primarily affects middle-aged men aged 30-40 who occasionally engage in high-intensity exercise on weekends, and its incidence has been increasing in recent years. The optimal treatment for acute Achilles tendon rupture remains controversial. Approximately 4-5% of patients undergo surgery. Compared to conservative treatment, surgical repair can reduce the incidence of tendon re-rupture, allow for earlier functional rehabilitation, and reduce calf atrophy. Surgical complications include wound infection and sural nerve injury. Minimally invasive repair is a better option for treating Achilles tendon rupture compared to conservative treatment or traditional open surgery, with fewer re-ruptures and wound-related complications. The main concerns are sural nerve injury and insufficient tendon hold.

[0003] Chinese patent CN213156131U discloses a minimally invasive Achilles tendon suture clamp, comprising a first clamp bar, a second clamp bar, a first clamp handle, a second clamp handle, a first collar, a second collar, a first suture sleeve, and a second suture sleeve. The first clamp bar, the first clamp handle, and the first collar are sequentially fixedly connected to form a first clamp body. The second clamp bar, the second clamp handle, and the second collar are sequentially fixedly connected to form a second clamp body. The first clamp body and the second clamp body are movably connected. The end of the first clamp bar away from the first collar has a suture hole A, a suture hole B, and a suture hole C in sequence. The end of the second clamp bar away from the second collar has a suture hole A', a suture hole B', and a suture hole C' in sequence. The first suture sleeve can communicate with either suture hole A or suture hole B, and the second suture sleeve can communicate with either suture hole A' or suture hole B'. This suture clamp can quickly and accurately perform external positioning and hole alignment of the Achilles tendon, realizing minimally invasive Bunnell suture.

[0004] However, to avoid intraoperative damage to the sural nerve and insufficient tendon control, a safe, reliable, and accurately navigable instrument is required. Therefore, we need to develop a convenient, simple, and reliable Achilles tendon minimally invasive suturing navigation device to meet clinical needs. Summary of the Invention

[0005] This invention provides an ultrasound-assisted Achilles tendon minimally invasive suturing navigation device that is simple and reasonable in design, reliable and safe in operation, and can directly meet the needs of avoiding sural nerve damage and fully holding the Achilles tendon during minimally invasive surgery.

[0006] The present invention adopts the following technical solution: an ultrasound-guided Achilles tendon minimally invasive suturing navigation device, comprising a clamp body structure and two navigation mechanisms. The clamp body structure includes a connecting shaft, a clamp handle, and a clamp head. The clamp handle and the clamp head are connected by the connecting shaft. The clamp head is located on the clamp handle. There are two clamp handles and two clamp heads. The two navigation mechanisms are respectively located on the two clamp heads, and the two navigation mechanisms located on the two clamp heads are mutually compatible.

[0007] Furthermore, each of the navigation mechanisms includes a sleeve and a needle core, the needle core being located inside the sleeve and slidingly engaged with the sleeve.

[0008] Furthermore, the outer ends of the sleeve and the needle core have an engaging portion, which includes a groove and a protrusion. The groove is located on the sleeve, and the protrusion is located on the needle core. The protrusion is engaged in the groove.

[0009] Furthermore, the opposite ends of the two navigation mechanisms fit together via inclined planes.

[0010] Furthermore, the sleeves of the two navigation mechanisms are configured with mutually cooperating bevels at the joint, and the needle cores of the two navigation mechanisms are configured with mutually cooperating bevels at the joint.

[0011] Furthermore, a locking device is provided between the two clamp handles.

[0012] Furthermore, the connecting shaft, pliers handle, and pliers head are all made of stainless steel.

[0013] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0014] Firstly, when using this invention, ultrasound is used before surgery to determine the course of the sural nerve and its accompaniment to the small saphenous vein, thus avoiding surgical damage. During surgery, the position and thickness of the Achilles tendon are confirmed under ultrasound guidance, and the navigation mechanism is passed through the Achilles tendon at the appropriate position. After fixation, the needle core is removed, and finally, the suture cannula is passed through it.

[0015] Secondly, the cannula and the needle core of this invention have an interlocking part at the end, which is equivalent to a concave-convex design, which plays a stabilizing role and can prevent the needle core from rotating and moving in the cannula, causing the needle core and the inclined surface of the cannula to mismatch and fail to complete the matching of the left and right sides. To remove it, simply pull the needle core outward, pass the suture through the needle core, remove the forceps, and put the needle core in for the next puncture. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 This is a partial three-dimensional structural exploded view of the present invention;

[0020] Figure 4 This is a partial schematic diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the invention during operation;

[0022] Figure label:

[0023] 1. Pliers body structure, 11. Connecting shaft, 12. Pliers handle, 13. Pliers head, 2. Navigation mechanism, 21. Sleeve, 22. Needle core, 23. Groove, 24. Protrusion, 3. Locking device, 4. Engaging part, 5. Sural nerve, 6. Achilles tendon, 7. Suture. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0025] The following is combined Figures 1 to 5 As shown, this embodiment of the invention provides an ultrasound-guided Achilles tendon minimally invasive suturing navigation device, including a clamp body structure 1 and two navigation mechanisms 2. The clamp body structure 1 includes a connecting shaft 11, a clamp handle 12, and a clamp head 13. The clamp handle 12 and the clamp head 13 are connected by the connecting shaft 11. The clamp head 13 is located on the clamp handle 12. There are two clamp handles 12 and two clamp heads 13. The two navigation mechanisms 2 are respectively located on the two clamp heads 13, and the two navigation mechanisms 2 located on the two clamp heads 13 are mutually compatible.

[0026] Specifically, each of the navigation mechanisms 2 includes a sleeve 21 and a needle core 22, the needle core 22 being located inside the sleeve 21 and slidingly engaging with the sleeve 21.

[0027] The sleeves 21 of the two navigation mechanisms are configured with mutually cooperating bevels at the anastomosis point, and the needle cores 22 of the two navigation mechanisms are configured with mutually cooperating bevels at the anastomosis point to ensure that the navigation perforation accurately penetrates the Achilles tendon.

[0028] The outer ends of the sleeve 21 and the needle core 22 have a fitting portion 4. The fitting portion 4 includes a groove 23 and a protrusion 24. The groove 23 is located on the sleeve 21, and the protrusion 24 is located on the needle core 22. The protrusion 24 is engaged in the groove 23. The fitting portion 4 is equivalent to a concave-convex design, which plays a stabilizing role and can prevent the needle core 22 from rotating and moving in the sleeve 21, which would cause the needle core 22 to mismatch with the inclined surface of the sleeve 21 and make it impossible to complete the left and right sides to match. Removal is to pull the needle core 22 outward. After pulling out the needle core 22 and passing the suture 7 through it, the forceps are removed, and the needle core 22 is put back in for the next puncture.

[0029] Specifically, a locking device 3 is provided between the two clamp handles 12. The locking device 3 can lock the two clamp handles 12 together to prevent them from rotating relative to each other.

[0030] Specifically, the connecting shaft 11, the handle 12, and the jaw 13 are all made of stainless steel. Made of stainless steel, they are strong and stable.

[0031] The working principle of this invention: When using this invention, ultrasound is used before the operation to determine the course of the sural nerve 5 and its accompaniment to the small saphenous vein to avoid damage during the operation. During the operation, the position and thickness of the Achilles tendon 6 are confirmed under ultrasound guidance. At the same time, the navigation mechanism 2 is passed through the Achilles tendon 6 in a suitable position. After fixation, the needle core 22 is removed. Finally, the suture 7 is passed through the cannula 21.

[0032] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. An ultrasound-guided minimally invasive Achilles tendon suturing navigation device, characterized in that, The device includes a clamp body structure (1) and two navigation mechanisms (2). The clamp body structure (1) includes a connecting shaft (11), a clamp handle (12), and a clamp head (13). The clamp handle (12) and the clamp head (13) are connected by the connecting shaft (11). The clamp head (13) is located on the clamp handle (12). There are two clamp handles (12) and two clamp heads (13). The two navigation mechanisms (2) are located on the two clamp heads (13) respectively. Each navigation mechanism (2) includes a sleeve (21) and a needle core (22). The needle core (22) is located inside the sleeve (21). The needle core (22) is connected to the sleeve. (21) Sliding fit; there is an engagement part (4) at the outer end of the sleeve (21) and the needle core (22), the engagement part (4) includes a groove (23) and a protrusion (24), the groove (23) is located on the sleeve (21), the protrusion (24) is located on the needle core (22), and the protrusion (24) is engaged in the groove (23); the opposite ends of the two navigation mechanisms (2) are matched with each other by inclined surfaces; the sleeves (21) of the two navigation mechanisms (2) are configured as mutually cooperating inclined surfaces at the matching point, and the needle cores (22) of the two navigation mechanisms (2) are configured as mutually cooperating inclined surfaces at the matching point.

2. The ultrasound-guided Achilles tendon minimally invasive suturing navigation device according to claim 1, characterized in that: A locking device (3) is provided between the two clamp handles (12).

3. The ultrasound-guided Achilles tendon minimally invasive suturing navigation device according to claim 1, characterized in that: The connecting shaft (11), the handle (12), and the head (13) are all made of stainless steel.

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