Ciliary body operation suturing device

Abstract

The utility model relates to the field of medical instruments, in particular to a suturing device for a ciliary body operation, which comprises a sleeve and a push rod movably arranged in the sleeve. The device further comprises a thin hook assembly, a thin tube is arranged on the sleeve, and the thin hook assembly is connected with the push rod and movably arranged in the thin tube. A telescopic operation tool similar to a syringe is composed of a sleeve and a push rod, the thin tube is used for puncturing the sclera, the provided telescopic driving thin hook assembly grabs and pulls an operation line, a traditional sclera operation incision is abandoned, sclera trauma in the operation and the bleeding probability in the operation are greatly reduced, the influence on corneal refraction is reduced, the operation speed is increased, and the operation efficiency is improved. The operation time is shortened, the occurrence probability of postoperative complications and the postoperative nursing difficulty are reduced, and the postoperative recovery speed is increased.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a suturing device for ciliary body surgery. Background Technology

[0002] Eye trauma, a common ophthalmic emergency, often has serious consequences. One particularly unusual complication is the detachment of the ciliary body from its attachment to the scleral spur, medically known as ciliary body detachment. The ciliary body is a vital structure within the eye responsible for producing aqueous humor and regulating the refractive power of the lens. Once damaged and detached, aqueous humor may abnormally enter the supraciliary space through this detachment opening. This pathological change can not only lead to a significant decrease in vision but may also cause weakened or even completely lost accommodative ability.

[0003] Complete loss of vision can lead to clinical symptoms such as shallow anterior chamber and low intraocular pressure. Furthermore, long-term untreated ciliary body detachment can cause retinal and optic nerve papilledema, posing a serious threat to the patient's visual health.

[0004] Given the extremely low likelihood of spontaneous healing after ciliary body detachment, surgical procedures are currently the primary clinical treatment for traumatic ciliary body detachment. The procedure is complex and delicate. First, a conjunctival flap based on the fornix is ​​created. Then, a half-lamellar scleral incision is made 3 mm posterior to the limbus, gradually dissecting anteriorly to the limbus to form a lamellar scleral flap. Next, a deep incision is made in the deep sclera 1 to 1.5 mm posterior to the limbus to release fluid accumulated within the ciliary body cavity. At this point, ciliary body tissue is visible exposed between the incisions; this is a crucial step in the surgery. Subsequently, the surgeon uses 10-0 sutures to intermittently suture the anterior and posterior lips of the scleral incision, with ciliary body tissue present. The sutures are made and sutured simultaneously, with intervals of approximately 2 mm, to ensure tightness and effectiveness. After this step, the superficial scleral flap is indirectly sutured, and the conjunctiva is continuously sutured to complete the entire surgical procedure. However, this surgical method is complex, causes significant damage, has a high incidence of postoperative complications, and takes a relatively long time, posing certain challenges to the patient's postoperative recovery and quality of life. Utility Model Content

[0005] The problem this invention aims to solve is that existing ciliary body surgery methods suffer from significant damage, numerous complications, and long operation times.

[0006] To solve the above-mentioned technical problems, this utility model provides a ciliary body surgical suturing device, which includes: a cannula, a push rod movably disposed in the cannula, and a fine hook assembly. The cannula is provided with a fine tube, and the fine hook assembly is connected to the push rod and movably disposed in the fine tube.

[0007] The thin hook assembly includes a straight section and a hook section, one end of which is connected to a push rod and the other end of which is connected to the hook section.

[0008] The sleeve is provided with a limiting element to restrict the movement of the push rod.

[0009] The push rod is provided with a limiting groove; the limiting groove cooperates with the limiting component to limit the range of motion of the push rod.

[0010] The limiting component is a pin, and the sleeve is provided with a mounting hole for engaging the pin. The mounting hole connects the inside and outside of the sleeve so that the pin can be installed from the outside, thereby increasing the restriction on the movement range of the push rod at any time.

[0011] The push rod has a reinforcing rib on its side, and the reinforcing rib has a notch, which forms the limiting groove.

[0012] The limiting component is a U-shaped pin, and the reinforcing ribs on the push rod are symmetrically arranged. The U-shaped pin simultaneously restricts the push rod from both sides.

[0013] The end of the thin tube away from the push rod is a slope, and the slope forms a sharp point at one end of the thin tube.

[0014] The end of the sleeve away from the thin tube is provided with an anti-detachment ear.

[0015] The push rod has a push plate at the end away from the thin hook assembly.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: the overall structure forms a telescopic surgical tool similar to a syringe, which uses a thin tube to pierce the sclera and its provided telescopic drive hook component to grasp and pull the surgical suture, eliminating the traditional scleral surgical incision, greatly reducing scleral trauma and intraoperative bleeding, reducing the impact on corneal refractive power, increasing surgical speed, shortening surgical time, reducing the incidence of postoperative complications and the difficulty of postoperative care, and accelerating postoperative recovery.

[0017] Meanwhile, it fully considers the protection of the thin hook assembly, which has insufficient rigidity, to prevent deformation caused by external tissues or tools, thereby improving operational accuracy. Furthermore, by incorporating a limiting element and a limiting groove, it achieves effective control of the push rod's movement range, preventing misoperation. Moreover, its simple structure and convenient operation make the surgical process smoother and more efficient.

[0018] The push rod is intentionally designed with increased strength and rigidity to withstand greater external forces and pressure, ensuring stability and durability during surgery. The spiked design also allows for easier penetration of eye tissue. It provides sufficient support and stability to meet the requirements of surgical equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the entire present invention.

[0020] Figure 2 This is a cross-sectional view of the entire present invention.

[0021] Figure 3 This is a schematic diagram of the sleeve in this utility model.

[0022] Figure 4 This is a three-dimensional schematic diagram of the push rod in this utility model.

[0023] Figure 5 This is a front view of the push rod in this utility model.

[0024] Figure 6 This is a schematic diagram of the limiting component in this utility model.

[0025] Explanation of reference numerals in the attached drawings: sleeve 1, thin tube 13, limiting component 14, mounting hole 15, sharp part 16, anti-detachment ear 17, push rod 2, thin hook assembly 23, straight section 234, hook section 235, limiting groove 24, reinforcing rib 25, push plate 26. Detailed Implementation

[0026] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the invention. To better illustrate the following embodiments, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions; it is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] Example 1

[0028] like Figure 1 As shown, this embodiment is a ciliary body surgical suturing device, including: a cannula 1, and a push rod 2 movably disposed within the cannula 1; it also includes a fine hook assembly 23, wherein the cannula 1 is provided with a fine tube 13, and the fine hook assembly 23 is connected to the push rod 2 and movably disposed within the fine tube 13.

[0029] The cannula 1 forms the carrier and protective housing of the suture device. The push rod 2 is used to cooperate with the cannula 1 to extend and retract, thereby driving the fine hook assembly 23. The fine hook assembly 23 is used to grasp and pull the surgical suture, forming an extension of the push rod 2's movement. The thin tube 13 is used to protect and restrict the fine hook assembly 23, preventing deformation of the fine hook assembly 23.

[0030] The cannula 1 and push rod 2 together form a retractable surgical tool similar to a syringe. The thin tube punctures the sclera, and its retractable drive hook assembly grasps and pulls the surgical suture, eliminating the need for traditional scleral surgical incisions. This significantly reduces scleral trauma and intraoperative bleeding, minimizes the impact on corneal refractive power, increases surgical speed, shortens surgical time, reduces the incidence of postoperative complications and postoperative care difficulty, and accelerates postoperative recovery. Simultaneously, the thin tube 13 helps protect the insufficiently rigid hook assembly 23, reducing deformation caused by external tissues or tools and improving operational precision.

[0031] like Figure 2 As shown, the thin hook assembly 23 includes a straight segment 234 and a hook section 235. One end of the straight segment 234 is connected to the push rod 2, and the other end is connected to the hook section 235.

[0032] The straight segment 234 extends the working distance of the hook segment, transmits the power of the push rod 2, and drives the hook segment 235 to move as needed. The hook segment 235 is used to hook the sewing thread.

[0033] The straight section 234 smoothly transmits the power of the push rod 2 to the hook section 235, avoiding shaking or deviation during the operation, and making it easier to control the movement path and hooking force of the fine hook assembly 23, thereby ensuring the flexibility of the operation.

[0034] The sleeve 1 is provided with a limiting member 14 for restricting the movement of the push rod 2.

[0035] The limiting element 14 is used to limit the range of motion of the push rod 2 within the sleeve 1.

[0036] Through the cooperation of the limiting member 14, the push rod 2 can be precisely limited within the cannula 1, accurately delivering the fine hook assembly 23 to the surgical area and preventing the push rod 2 from moving during the operation due to external interference or misoperation, thus reducing surgical risks. Simultaneously, the cannula 1, as the main body, provides a path for the push rod 2 and stable support from the limiting member 14, avoiding unnecessary deviations and vibrations. This ensures the precise positioning and movement of the fine hook assembly 23 during the operation, preventing surgical errors or damage caused by excessive movement of the push rod 2.

[0037] like Figure 4 As shown, the push rod 2 is provided with a limiting groove 24; the limiting groove 24 cooperates with the limiting member 14 to limit the range of motion of the push rod 2.

[0038] The limiting member 14 cooperates with the limiting groove 24 on the push rod 2 to limit the range of motion of the push rod 2, preventing it from moving accidentally due to misoperation or external interference. At the same time, it locks the push rod 2, reducing surgical risks. It can also precisely limit the range of motion of the push rod 2 within the cannula 1, ensuring that the position and movement of the fine hook assembly 23 can be accurately controlled during the operation, thus improving the precision and safety of the operation.

[0039] like Figure 3 As shown, the limiting member 14 is a pin, and the sleeve 1 is provided with a mounting hole 15 for engaging the pin. The mounting hole 15 connects the inside and outside of the sleeve 1 so that the pin can be installed from the outside, thereby increasing the restriction on the movement range of the push rod 2 at any time.

[0040] The pin engages with the limiting groove 24 on the push rod 2 to restrict the movement range of the push rod 2. The mounting hole 15 is used to install the pin, thereby closing or releasing the restriction on the movement range of the push rod 2.

[0041] The range of motion of the push rod 2 can be easily controlled by inserting or removing the pin through the mounting hole 15 on the cannula 1, eliminating the need for complex adjustments or operations and making the surgical procedure smoother and more efficient. Simultaneously, precise control of the push rod 2's range of motion ensures accurate operation of the fine hook assembly 23 during surgery, providing stable support and precise guidance.

[0042] like Figure 5 As shown, the push rod 2 has a reinforcing rib 25 on its side, and the reinforcing rib 25 has a notch, which forms the limiting groove 24.

[0043] The reinforcing rib 25 is used to prevent the push rod 2 from deforming or twisting under stress.

[0044] The reinforcing rib 25 effectively increases the strength and rigidity of the push rod 2, enabling it to withstand greater external forces and pressures, ensuring stability and durability during surgery. The limiting groove 24 formed by the notch cooperates with the limiting member 14 on the sleeve 1 to precisely limit the range of motion of the push rod 2. This ensures accurate control of the push rod 2's movement range during surgery, allowing the fine hook assembly 23 to accurately reach the target position.

[0045] like Figure 6 As shown, the limiting member 14 is a U-shaped pin, and the reinforcing ribs 25 on the push rod 2 are symmetrically arranged. The U-shaped pin simultaneously restricts the push rod 2 from both sides.

[0046] The U-shaped pin is used to cooperate with the limiting groove 24 on the push rod 2 to control the range of movement of the push rod 2 within the sleeve 1. The symmetrical design on both sides makes the limiting more stable.

[0047] By designing the pin in the shape of a U-shaped pin, the retrieval area is increased, making it easier for fingers to pick up and put down the pin and for the installation hole 15 on the sleeve 1 to be installed. The U-shaped pin can be inserted or pulled out at an appropriate time according to the actual situation during the operation, so as to adjust the range of motion of the push rod 2 and improve the efficiency of the operation.

[0048] The end of the thin tube 13 away from the push rod 2 is a slope, and the slope forms a sharp part 16 at one end of the thin tube 13.

[0049] The pointed end is used to pierce the tissue required for the surgery.

[0050] The design of the spikes allows the thin tube 13 to penetrate the eye tissue more easily. At the same time, the direction and depth of the hook assembly 23 can be more precisely controlled by the guidance of the spikes.

[0051] The end of the sleeve 1 away from the thin tube 13 is provided with an anti-detachment ear 17.

[0052] Anti-dislodgement ear 17 is used to prevent the cannula 1 from accidentally dislodging or shifting during the operation.

[0053] The anti-slip ear 17 provides better control and operation of the sleeve 1, preventing it from slipping or shifting due to external force or improper operation, and offering additional support and stability. During the extension or retraction of the push rod 2, the anti-slip ear 17 provides relative force support, achieving a more effortless effect.

[0054] The push rod 2 has a push plate 26 at the end away from the thin hook assembly 23.

[0055] Push plate 26 is used to hold push plate 26 to control and drive push rod 2

[0056] The movement of the fine hook assembly 23 is controlled and driven by pushing the pusher plate 26. This design allows the surgeon to control the surgical instruments more accurately, improving the precision and safety of the surgery. The pusher plate 26, in conjunction with the anti-dislodgement ear 17, provides relative support, allowing for easier extension or retraction of the pusher plate 2 and reducing fatigue during the procedure.

[0057] Example 2

[0058] As shown in the figure, this embodiment is a ciliary body surgical suture device, including: a cannula 1, a push rod 2 movably disposed within the cannula 1, and a fine hook assembly 23. The cannula 1 has a thin tube 13, and the fine hook assembly 23 is connected to the push rod 2 and movably disposed within the thin tube 13. The cannula 1 serves as a carrier and protective shell for the suture device. The push rod 2 cooperates with the cannula 1 to extend and retract, driving the fine hook assembly 23. The fine hook assembly 23 is used to grasp and pull the surgical suture, extending the movement of the push rod 2. The thin tube 13 protects and restricts the fine hook assembly 23, preventing deformation of the fine hook assembly 23.

[0059] In this embodiment, the cannula 1 includes a conical head at the front end and a cylindrical body in the middle, both of which are hollow structures. The length of the head is one-fifth to one-tenth of the length of the body, and the bottom of the head has the same cross-section as the body. The top of the head has an opening that connects to the inside of the cannula. The thin tube 13 is a circular tube with a cross-sectional diameter of 0.3 mm to 1.5 mm and a length of one-fifth to one-quarter of the length of the cannula. One end of the thin tube 13 is connected to the opening, and the central axis of the thin tube 13 is collinear with the central axis of the body. The cannula 1 and the thin tube 13 can be made of high-strength, corrosion-resistant, and biocompatible medical-grade stainless steel or titanium alloy to ensure stability and durability during the surgical procedure.

[0060] The push rod 2 is a cylindrical body with a cross-sectional diameter smaller than the internal hollow diameter of the cannula 1 and a length longer than the cylindrical main body of the cannula 1. The push rod 2 can be made of lightweight, high-strength medical-grade plastic or carbon fiber material, reducing fatigue during operation. The surface of the push rod 2 undergoes special treatment, providing good lubricity and wear resistance, ensuring smooth sliding within the cannula 1 and minimal wear. The fine hook assembly 23 is connected to the internal structure of the cannula 1 via the push rod 2 and is movably positioned within the thin tube 13 at the front end of the cannula 1. The fine hook assembly 23 extends and retracts flexibly within the thin tube 13 for suturing operations.

[0061] The fine hook assembly 23 includes a straight segment 234 and a hook section 235. One end of the straight segment 234 is connected to the push rod 2, and the other end is connected to the hook section 235. The straight segment 234 extends the working distance of the hook section, transmits the power of the push rod 2, and drives the hook section 235 to move as needed. This hooks the suture thread, enabling flexible suturing operations in a very small space. The fine hook assembly 23 consists of the straight segment 234 and the hook section 235. The diameter of the straight segment 234 is smaller than the diameter of the thin tube 13, and one end of the straight segment 234 is fixed to the push rod 2.

[0062] Connected to the thin tube 13, the other end extends smoothly and connects to the hook section 235. The hook section 235 is designed with the characteristics of the ciliary body in mind, ensuring effective tissue gripping without causing unnecessary damage to surrounding tissues. It can be made of ultra-fine stainless steel wire or titanium alloy wire, and the connection between its straight section 234 and the hook section is optimized to ensure the flexibility and strength of the thin hook assembly 23 when bending and stretching.

[0063] The sleeve 1 is provided with a limiting member 14 for restricting the movement of the push rod 2. The limiting member 14 is used to limit the range of movement of the push rod 2 within the sleeve 1. Specifically, the limiting member 14 can be a pointed insert with a friction rod having a rough surface at the head, which directly acts on the push rod 2 to restrict the movement of the push rod 2.

[0064] The push rod 2 is provided with a limiting groove 24, which cooperates with the limiting member 14 to limit the range of motion of the push rod 2. The limiting groove 24 is used to cooperate with the limiting member 14 to limit the range of motion of the push rod 2. The limiting groove 24 can be formed by two protrusions on the push rod 2, or by a pre-set notch on the push rod 2.

[0065] The limiting component 14 is a pin. The sleeve 1 has a mounting hole 15 for engaging the pin. The mounting hole 15 connects the inside and outside of the sleeve 1, allowing the pin to be installed from the outside, thus increasing the restriction on the movement range of the push rod 2. The pin engages with the limiting groove 24 on the push rod 2 to restrict the movement range of the push rod 2. The mounting hole 15 is used to install the pin, allowing the restriction on the movement range of the push rod 2 to be closed or released. The pin is cylindrical, with a length greater than the width of the hollow cylinder in the sleeve 1. Near the conical head, at one-third of the central cylinder of the sleeve 1, a mounting hole 15 penetrating the sleeve 1 is provided. The diameter of the mounting hole 15 is slightly larger than the diameter of the pin. When the pin is inserted, it is radially positioned within the hollow cylinder of the sleeve 1.

[0066] The push rod 2 has reinforcing ribs 25 on its side, and the reinforcing ribs 25 have notches that form limiting grooves 24. The reinforcing ribs 25 are used to prevent the push rod 2 from deforming or twisting under stress. The reinforcing ribs 25 can be arranged symmetrically in pairs on the push rod.

[0067] On 2, one set of symmetrical reinforcing ribs 25 forms a notch at the front end of the push rod 2 near the straight segment 234 of the thin hook assembly 23, and the notch forms a limiting groove 24.

[0068] The limiting component 14 is a U-shaped pin. The reinforcing ribs 25 on the push rod 2 are symmetrically arranged. The U-shaped pin simultaneously restricts the push rod 2 from both sides. The U-shaped pin cooperates with the limiting groove 24 on the push rod 2 to control the range of movement of the push rod 2 within the sleeve 1. The symmetrical design on both sides makes the limiting more stable. The U-shaped pin is a bent cylindrical design with both ends flush. The pin length is greater than the width of the hollow cylinder in the sleeve 1. Near the conical head, about one-third of the central cylinder of the sleeve 1, there are symmetrical mounting holes 15 penetrating the sleeve 1 on both sides. The diameter of the mounting holes 15 is slightly larger than the pin's diameter.

[0069] When the pin is inserted, it is radially positioned within the hollow cylinder of sleeve 1.

[0070] The end of the thin tube 13 away from the push rod 2 is beveled, and the bevel forms a sharp point 16 at one end of the thin tube 13. The sharp point is used to pierce the tissue to be operated on. The end of the thin tube 13 away from the push rod 2 is beveled, and the bevel forms a sharp point 16 at one end of the thin tube 13, making the thin tube 13 needle-like, and the hook assembly 23 extends out from the hollow center of the sharp point 16.

[0071] The end of the cannula 1 furthest from the thin tube 13 is provided with an anti-dislodgement ear 17. The anti-dislodgement ear 17 is used to prevent the cannula 1 from accidentally falling off or shifting during the operation. The anti-dislodgement ear 17 is provided on both sides of the open end of the cannula 1 symmetrically, and is integrated with the cannula 1. It is a semi-circular thick plate shape and can be made of the same high-strength, corrosion-resistant, and biocompatible medical-grade stainless steel or titanium alloy material as the cannula 1 to ensure stability and durability during the operation.

[0072] The push rod 2 has a push plate 26 at the end away from the thin hook assembly 23. The push plate 26 is used to hold the push rod 2 to control and drive it. The push plate 26 at the end of the push rod 2 away from the thin hook assembly 23 can be a thin circular piece fixed to the push rod 2, with an area matching the width of a thumb. The design of the push plate 26 increases the operating area, allowing for more stable and accurate control of the push rod 2's movement. The push plate 26 can also be a ring-shaped design, allowing for one-handed operation by inserting the thumb to control the extension and retraction of the push rod 2.

[0073] Usage: During the surgery, the operator adjusts the use of the limiting member 14 as needed to determine the range of motion of the push rod 2. Then, the push plate 26 is pushed, causing the fine hook assembly 23 to extend from the tip 16 of the thin tube 13, precisely hooking the required surgical suture for suturing. After suturing is completed, the push rod 2 is reversed to pull the fine hook assembly 23 back, completing one suturing action.

[0074] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A ciliary body surgical suturing device, comprising: The sleeve (1) and the push rod (2) movably disposed within the sleeve (1) are characterized in that: the sleeve (1) is further provided with a thin tube (13), the thin hook assembly (23) is connected to the push rod (2) and movably disposed within the thin tube (13).

2. The ciliary body surgical suture device according to claim 1, characterized in that: The thin hook assembly includes a straight section (234) and a hook section (235), one end of the straight section (234) being connected to the push rod (2) and the other end being connected to the hook section (235).

3. The ciliary body surgical suture device according to claim 1, characterized in that: The sleeve (1) is provided with a limiting member (14) for restricting the movement of the push rod (2).

4. The ciliary body surgical suture device according to claim 3, characterized in that: The push rod (2) is provided with a limiting groove (24); the limiting groove cooperates with the limiting member (14) to limit the range of motion of the push rod.

5. The ciliary body surgical suture device according to claim 3, characterized in that: The limiting member (14) is a pin, and the sleeve is provided with a mounting hole (15) for cooperating with the pin. The mounting hole (15) connects the inside and outside of the sleeve (1) so that the pin can be installed from the outside, thereby increasing the restriction on the range of motion of the push rod (2) at any time.

6. The ciliary body surgical suture device according to claim 4, characterized in that: The push rod (2) has a reinforcing rib (25) on its side, and a notch (251) is provided on the reinforcing rib (25), which forms the limiting groove (24).

7. The ciliary body surgical suture device according to claim 6, characterized in that: The limiting member (14) is a U-shaped pin, and the reinforcing ribs (25) on the push rod (2) are symmetrically arranged. The U-shaped pin is located on both sides of the push rod (2) and is used to simultaneously limit the push rod (2).

8. The ciliary body surgical suture device according to any one of claims 1 to 7, characterized in that: The end of the thin tube (13) away from the push rod (2) is a slope, and the slope forms a sharp part (16) at one end of the thin tube (13).

9. The ciliary body surgical suture device according to any one of claims 1 to 7, characterized in that: The end of the sleeve (1) away from the thin tube is provided with an anti-detachment ear (17).

10. The ciliary body surgical suture device according to any one of claims 1 to 7, characterized in that: The push rod (2) has a push plate (26) at the end away from the thin hook assembly (23).

Images