Anti-bending and breakage front-hanging device

Abstract

The utility model provides a kind of anti-bending breakage's front suspension instrument, belong to ophthalmology relevant treatment upper eyelid ptosis technical field, including anti-bending breakage suspension line, both ends of the anti-bending breakage suspension line are provided with metal guide needle.The utility model solves the risk of bending point fracture of the existing front suspension instrument when in use, suspension line is implanted into human body for a long time, is easy to cause damage to patient after fracture, reduces the safety of instrument use, and the difficulty of instrument production process is greater, may lead to the shedding of suspension line or the abrasion of suspension line by metal guide needle tail end even fracture in the process of instrument use, reduces the practicability of instrument problem.

Description

Technical Field

[0001] This utility model belongs to the field of ophthalmological treatment of ptosis, specifically relating to a forehead suspension device that is resistant to bending and breakage. Background Technology

[0002] Ptosis refers to the incomplete or absent function of the palpebral muscle and Müller's smooth muscle, resulting in partial or complete drooping of the upper eyelid. In mild cases, it partially covers the pupil, while in severe cases, the pupil is completely covered. Congenital ptosis can also cause amblyopia. If it is mild ptosis and does not affect visual development, elective surgery can be performed to improve appearance. Early surgery is recommended for unilateral ptosis that obscures the pupil. Myogenic or paralytic ptosis can be treated with adenosine triphosphate, vitamin B1, or neostigmine. Surgery should only be considered if these treatments are ineffective. Frontalis muscle suspension is a surgical procedure suitable for treating ptosis, which involves using a frontal suspension device to suspend the upper eyelid on the frontalis muscle.

[0003] Existing forehead suspension devices have drawbacks. The suspension wires generally have low bending resistance, posing a risk of breakage at the bending point after prolonged implantation. Breakage can easily cause injury to the patient, reducing the device's safety. Furthermore, the device uses a riveting method to fix the suspension wire after the metal guide needle's tail end is treated, making the manufacturing process difficult and requiring high-level tooling and skilled operators. The connection strength between the metal guide needle and the suspension wire is also generally low, potentially leading to wire detachment, wear, or even breakage from the metal guide needle's tail end during use, thus reducing the device's practicality. Summary of the Invention

[0004] This invention provides a forehead suspension device that is resistant to bending and breakage. Its purpose is to solve the problem that existing forehead suspension devices have the risk of breakage at the bending point after the suspension line has been implanted in the human body for a long time. Breakage can easily cause injury to the patient, reducing the safety of the device during use. In addition, the device is difficult to manufacture, and the suspension line may fall off or be worn or even broken by the tail end of the metal guide needle during use, which reduces the practicality of the device.

[0005] This utility model provides a forehead suspension device that is resistant to bending and breakage, including a suspension line that is resistant to bending and breakage, and metal guide pins are provided at both ends of the suspension line.

[0006] By adopting the above technical solutions, the bending-resistant and breakage-proof suspension line has good strength and flexibility, reducing the risk of breakage at the bending point and improving the safety of the instrument during use. In addition, the manufacturing process of the metal guide pin is relatively simple, and the connection strength between the metal guide pin and the bending-resistant and breakage-proof suspension line is strong. During the use of the instrument, the bending-resistant and breakage-proof suspension line is prevented from falling off or being worn or even broken by the tail end of the metal guide pin, which greatly improves the practicality of the instrument.

[0007] Furthermore, the bending-resistant and breakage-resistant suspension line includes a PTFE inner core, a nickel-titanium alloy intermediate layer is fixedly connected to the outer wall of the PTFE inner core, and a PU outer layer is fixedly connected to the outer wall of the nickel-titanium alloy intermediate layer.

[0008] By adopting the above technical solution, the suspension cable, with its PTFE inner core, nickel-titanium alloy intermediate layer, and PU outer layer, possesses excellent strength and flexibility, reducing the risk of breakage at bending points. The nickel-titanium alloy intermediate layer encases the PTFE inner core, preventing its exposure and thus avoiding harm to the human body. Furthermore, the PTFE inner core, nickel-titanium alloy intermediate layer, and PU outer layer all exhibit good biocompatibility, preventing toxic effects on the human body and improving the safety of the device during use.

[0009] Furthermore, the internal parts of both ends of the bending and breakage-resistant suspension line are provided with mating grooves.

[0010] By adopting the above technical solution, space is reserved for the assembly of the metal guide pin, making the assembly between the two ends of the bending and breakage-resistant suspension line and the metal guide pin more convenient and secure.

[0011] Furthermore, the two metal guide pins have the same structure and are both made of medical-grade stainless steel.

[0012] By adopting the above technical solution and using medical-grade stainless steel, the metal guide needle has good biocompatibility, thus avoiding any toxic effects on the human body.

[0013] Furthermore, the metal guide pin includes a guide pin core, and a guide pin sleeve is fixedly connected to the outer wall of the guide pin core. The end of the guide pin sleeve away from the guide pin core is wrapped around the end of the bending and breakage resistant suspension wire.

[0014] By adopting the above technical solution, the end of the anti-bending and anti-breakage suspension line is wrapped inside the guide needle sleeve, which makes the connection strength between the end of the anti-bending and anti-breakage suspension line and the guide needle sleeve stronger, and the anti-bending and anti-breakage suspension line is subjected to uniform force. In addition, the guide needle sleeve has a certain thickness, thereby preventing the anti-bending and anti-breakage suspension line from being worn or even broken by the metal guide needle tail end during the use of the instrument, thus improving the practicality of the instrument.

[0015] Furthermore, both the head of the guide needle core and the guide needle sleeve are provided with a cutting edge.

[0016] By adopting the above technical solution, the metal guide needle can puncture the skin more smoothly, thereby improving the efficiency of the operation.

[0017] Furthermore, the metal guide pin also includes a nickel-titanium guide core fixedly connected to the center of the tail of the guide pin core, the nickel-titanium guide core being inserted into the interior of the mating groove.

[0018] By adopting the above technical solution, the nickel-titanium guide core has good strength and flexibility, which further strengthens the connection between the metal guide needle and the two ends of the anti-bending and anti-breakage suspension line, and reduces the risk of the anti-bending and anti-breakage suspension line detaching from the metal guide needle during instrument use.

[0019] Furthermore, both ends of the anti-bending and anti-damage suspension line are coated with curing adhesive on the surfaces that come into contact with the metal guide pins.

[0020] By adopting the above technical solution, the connection strength between the metal guide needle and the two ends of the anti-bending and anti-breakage suspension line is stronger under the action of the curing adhesive, so that there is no risk of the anti-bending and anti-breakage suspension line falling off during the use of the instrument, and the practicality of the instrument is further improved.

[0021] The beneficial effects of this utility model are as follows:

[0022] This invention, through the design of an anti-bending and anti-breakage suspension line, endows the suspension line with excellent strength and flexibility, reducing the risk of breakage at bending points and preventing injury to patients. Furthermore, the anti-bending and anti-breakage suspension line exhibits good biocompatibility, avoiding toxic effects on the human body and improving the safety of the device during use. The inclusion of a metal guide needle simplifies its manufacturing process, and the strong connection between the metal guide needle and the anti-bending and anti-breakage suspension line prevents the suspension line from detaching or being worn or broken by the tail end of the metal guide needle during use, greatly enhancing the device's practicality.

[0023] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the anti-bending and anti-breakage suspension line according to an embodiment of the present utility model;

[0027] Figure 3 This is an enlarged structural diagram of the metal guide pin tip of an embodiment of the present invention;

[0028] Figure 4 This is a schematic cross-sectional view of the guide needle core mating area according to an embodiment of the present utility model;

[0029] Figure 5 This is a schematic cross-sectional view of the joint structure of the anti-bending and anti-damage suspension line according to an embodiment of the present utility model;

[0030] Figure 6 This is a cross-sectional structural diagram of the joint between the metal guide pin and the bending and breakage-resistant suspension line in an embodiment of this utility model;

[0031] Reference numerals: 1. Bending-resistant and breakage-resistant suspension line; 101. PTFE inner core; 102. Nickel-titanium alloy intermediate layer; 103. PU outer layer; 104. Mating groove; 2. Metal guide pin; 201. Guide pin core; 202. Guide pin sleeve; 203. Cutting edge; 204. Nickel-titanium guide core; 3. Curing adhesive. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] Reference Figures 1-6 This utility model provides a frontal suspension device that is resistant to bending and breakage, including a bending-resistant and breakage-resistant suspension line 1. Both ends of the bending-resistant and breakage-resistant suspension line 1 are equipped with metal guide pins 2. The bending-resistant and breakage-resistant suspension line 1 possesses good strength and flexibility, reducing the risk of breakage at bending points and improving the safety of the device during use. Furthermore, the manufacturing process of the metal guide pins 2 is relatively simple, and the connection between the metal guide pins 2 and the bending-resistant and breakage-resistant suspension line 1 is strong. During device use, it prevents the bending-resistant and breakage-resistant suspension line 1 from falling off or being worn or even broken by the tail end of the metal guide pins 2, greatly improving the practicality of the device.

[0034] Reference Figure 2 The bending-resistant and breakage-resistant suspension cable 1 includes a PTFE inner core 101, a nickel-titanium alloy intermediate layer 102 fixedly connected to the outer wall of the PTFE inner core 101, and a PU outer layer 103 fixedly connected to the outer wall of the nickel-titanium alloy intermediate layer 102. The structure of the bending-resistant and breakage-resistant suspension cable 1 is similar to that of catheters used in interventional radiology and neurosurgery for entering blood vessels. Through the arrangement of the PTFE inner core 101, the nickel-titanium alloy intermediate layer 102, and the PU outer layer 103, the bending-resistant and breakage-resistant suspension cable 1 has good strength and flexibility, reducing the risk of breakage at bending points. The nickel-titanium alloy intermediate layer 102 wraps around the PTFE inner core 101, so that the PTFE inner core 101 will not be exposed, thereby avoiding damage to the human body. In addition, the PTFE inner core 101, the nickel-titanium alloy intermediate layer 102, and the PU outer layer 103 all have good biocompatibility, avoiding toxic effects on the human body and improving the safety of device use.

[0035] Reference Figure 5 The bending and breakage resistant suspension line 1 has mating grooves 104 inside both ends, which provide space for the assembly of the metal guide pin 2, making the assembly between the two ends of the bending and breakage resistant suspension line 1 and the metal guide pin 2 more convenient and secure.

[0036] Reference Figure 1 The two metal guide pins 2 have the same structure and are both made of medical-grade stainless steel. The use of medical-grade stainless steel makes the metal guide pins 2 biocompatible and avoids toxic effects on the human body.

[0037] Reference Figure 1 , Figure 3 and Figure 6 The metal guide needle 2 includes a guide needle core 201. A guide needle sleeve 202 is fixedly connected to the outer wall of the guide needle core 201. The end of the guide needle sleeve 202 away from the guide needle core 201 is wrapped around the end of the anti-bending and anti-breakage suspension line 1. The end of the anti-bending and anti-breakage suspension line 1 is wrapped inside the guide needle sleeve 202, which makes the connection strength between the end of the anti-bending and anti-breakage suspension line 1 and the guide needle sleeve 202 stronger, and the anti-bending and anti-breakage suspension line 1 is subjected to uniform force. The guide needle sleeve 202 has a certain thickness, thereby preventing the anti-bending and anti-breakage suspension line 1 from being worn or even broken by the tail end of the metal guide needle 2 during the use of the instrument, thus improving the practicality of the instrument.

[0038] Reference Figure 3 Both the guide needle core 201 and the guide needle sheath 202 have a cutting edge 203 at their heads, which helps the metal guide needle 2 to puncture the skin more smoothly, thereby improving surgical efficiency.

[0039] Reference Figure 4 and Figure 6The metal guide needle 2 also includes a nickel-titanium guide core 204 fixedly connected to the center of the tail of the guide needle core 201. The nickel-titanium guide core 204 is inserted into the mating groove 104. The nickel-titanium guide core 204 has good strength and flexibility, which further strengthens the connection strength between the metal guide needle 2 and the two ends of the anti-bending and anti-breakage suspension line 1, and reduces the risk of the anti-bending and anti-breakage suspension line 1 detaching from the metal guide needle 2 during the use of the instrument.

[0040] Reference Figure 5 and Figure 6 The surfaces of both ends of the anti-bending and anti-breakage suspension line 1 that come into contact with the metal guide pin 2 are coated with curing adhesive 3. Under the action of curing adhesive 3, the connection strength between the metal guide pin 2 and the two ends of the anti-bending and anti-breakage suspension line 1 is stronger, so that there is no risk of the anti-bending and anti-breakage suspension line 1 falling off during the use of the instrument, which further improves the practicality of the instrument.

[0041] The specific implementation method is as follows: When using the instrument, it is taken out and disinfected. After disinfection, the user performs the relevant surgical operation according to the patient's needs. The metal guide needle 2 penetrates the skin and guides the anti-bending and anti-breakage suspension line 1 to suspend the upper eyelid on the frontalis muscle, forming a triangle, pentagon, rhombus or other suspension patterns. After the operation is completed, the metal guide needle 2 is removed, leaving only the anti-bending and anti-breakage suspension line 1 for implantation.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A forehead suspension device resistant to bending and breakage, characterized in that, It includes a bending and breakage resistant suspension line (1), and both ends of the bending and breakage resistant suspension line (1) are provided with metal guide pins (2); The bending and breakage resistant suspension line (1) includes a PTFE inner core (101), a nickel-titanium alloy intermediate layer (102) is fixedly connected to the outer wall of the PTFE inner core (101), and a PU outer layer (103) is fixedly connected to the outer wall of the nickel-titanium alloy intermediate layer (102).

2. The forehead suspension device resistant to bending and breakage according to claim 1, characterized in that: The bending and damage-resistant suspension line (1) has mating grooves (104) inside both ends.

3. The forehead suspension device resistant to bending and breakage according to claim 1, characterized in that: The two metal guide pins (2) have the same structure and are both made of medical stainless steel.

4. The forehead suspension device resistant to bending and breakage according to claim 2, characterized in that: The metal guide pin (2) includes a guide pin core (201), and a guide pin sleeve (202) is fixedly connected to the outer wall of the guide pin core (201). The end of the guide pin sleeve (202) away from the guide pin core (201) wraps around the end of the anti-bending and anti-breakage suspension line (1).

5. A forehead suspension device resistant to bending and breakage according to claim 4, characterized in that: Both the head of the guide needle core (201) and the guide needle sleeve (202) are provided with a cutting edge (203).

6. The forehead suspension device resistant to bending and breakage according to claim 4, characterized in that: The metal guide pin (2) also includes a nickel-titanium guide core (204) fixedly connected to the center of the tail of the guide pin core (201), and the nickel-titanium guide core (204) is inserted into the interior of the mating groove (104).

7. A forehead suspension device resistant to bending and breakage according to claim 4, characterized in that: The surfaces of both ends of the anti-bending and anti-damage suspension line (1) that come into contact with the metal guide pin (2) are coated with curing adhesive (3).

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