Ultrasonic emulsification needle with sawtooth-shaped canine tooth structure
By designing a phacoemulsified needle with a serrated acupoint structure, the problems of poor cutting effect and excessive heat of existing emulsified needles are solved, and a more efficient and safe cataract surgery is achieved.
Patent Information
- Application Number
- CN202422012004.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The top of the existing emulsified needle is an annular surface, resulting in poor cutting effect and easy to produce large pieces of debris to block the pipeline, generate too much heat, which may burn the tissue, affecting the surgical effect.
A phacoemulsified needle with a serrated fang structure is designed. The fangs are arranged at a time around the needle tube to form a serrated shape. Each fang is radially and is designed as a triangular prism with appropriate piercing angle and thickness, reducing the contact area to improve sharpness.
The cutting effect is better, the fragments are smaller and even, the calories are reduced, the surgery is safer, and the recovery is faster.
Smart Images
Figure CN223263090U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of ultrasonic emulsification needles, in particular to a ultrasonic emulsification needle with a sawtooth-shaped canine structure. Background Art
[0002] Cataracts are degenerative changes in the lens' transparency or color, resulting in a decrease in optical quality. The lens is a crucial refractive component of the eye. If it becomes cloudy, it can affect the normal passage of light, leading to decreased vision, increased intraocular pressure, eye atrophy, secondary glaucoma, blindness, and other eye complications. Therefore, if you notice symptoms of cataracts, you should seek medical attention promptly and receive appropriate treatment to mitigate these risks and restore or improve vision.
[0003] Phacoemulsification is an effective treatment for cataracts. It uses ultrasound to pulverize and aspirate the lens nucleus, followed by implantation of an intraocular lens. This procedure, characterized by a small incision, short surgical time, minimal tissue damage, and rapid recovery, is currently the mainstream cataract surgery method in my country.
[0004] In cataract phacoemulsification surgery, the emulsification needle is one of the key tools, and its performance directly affects the success of the surgery and the patient's postoperative recovery.
[0005] The tip of an existing phacoemulsification needle is generally an annular surface structure. When the phacoemulsification needle is working, the tip of the needle contacts the cataract, generating pressure and destroying the cataract structure. Because the top end face of the needle is annular and the needle is not sharp enough, the contact between the tip of the needle and the cataract is surface contact, resulting in poor cutting effect. Not only can the cataract not be completely crushed, but it may even produce large debris. Large debris can easily clog the needle and the pipe, causing the machine to alarm and affecting the operation. In addition, the cutting process requires a lot of useless work and generates a lot of heat. If the generated heat cannot be removed in time, it is very likely to burn other tissues, causing corneal redness and swelling, corneal endothelial damage, etc., resulting in poor surgical results.
[0006] Therefore, the inventors are committed to designing a phacoemulsification needle to solve the above problems. Utility Model Content
[0007] The purpose of the utility model is to provide a phacoemulsification needle with a sawtooth cusp structure, which has a good cutting effect. It can not only cut cataracts into smaller and more uniform fragments that are easier to be sucked away, but also generates less heat and has a better surgical effect.
[0008] In order to achieve the above-mentioned purpose, a technical solution adopted by the present utility model is:
[0009] A phacoemulsification needle with a serrated fang structure comprises a tubular needle tube, one end of the needle tube is provided with a clamping portion, and the other end surface of the needle tube is provided with a plurality of fangs, all of the fangs are arranged in a circle around the suction hole of the needle tube and form a serrated shape, and each fang is arranged along the radial direction of the needle tube.
[0010] As an improvement of the ultrasonic emulsification needle with a sawtooth cusp structure of the utility model, the depth a of the cusp is 0.3 mm.
[0011] As an improvement of the ultrasonic emulsification needle with a sawtooth cuspidor structure of the utility model, the angle between two adjacent cuspidors is 30 degrees.
[0012] As an improvement of the ultrasonic emulsification needle with a sawtooth canine structure of the utility model, each of the canines is in the shape of a triangular prism, and the insertion angle b of the canine is 30 degrees.
[0013] As an improvement of the ultrasonic emulsification needle with a sawtooth cusp structure of the utility model, the thickness of the cusps is 0.1 mm.
[0014] As an improvement of the ultrasonic emulsification needle with a sawtooth cusp structure of the utility model, the number of the cusps is 12, the outer diameter of the needle tube is 1.1 mm, and the wall thickness of the needle tube is 0.1 mm.
[0015] As an improvement of the ultrasonic emulsification needle with a sawtooth fang structure of the utility model, the clamping part is coaxially arranged with the needle tube, and the outer diameter of the clamping part is larger than the outer diameter of the needle tube.
[0016] As an improvement of the ultrasonic emulsification needle with a serrated fang structure of the utility model, the clamping end of the needle tube is also coaxially provided with a base, and the clamping part and the base are arranged in sequence at the clamping end of the needle tube from the outside to the inside, and the outer diameter of the base is larger than the outer diameter of the clamping part.
[0017] As an improvement of the ultrasonic emulsification needle with a sawtooth fang structure of the utility model, the clamping part, the base and the needle tube are integrally formed, and the suction hole passes through the needle tube, the base and the clamping part.
[0018] As an improvement of the ultrasonic emulsification needle with a sawtooth-shaped canine structure of the utility model, the end of the base away from the clamping portion is configured in a conical shape.
[0019] Compared with the existing technology, the ultrasonic emulsification needle of the utility model has a serrated fang structure. By arranging multiple fangs on the end face of the needle tube, and all the fangs are arranged in a circle and form a serrated shape, the needle tip of the emulsification needle is sharper and the cutting effect is better. It can not only cut the cataract into smaller and more uniform fragments that are easier to be sucked away, but also generates less heat and has a better surgical effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a stereoscopic view of the phacoemulsification needle with a sawtooth-like canine structure of the present invention;
[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0022] Figure 3 This is a stereoscopic view of the phacoemulsification needle with a sawtooth-like canine structure of the present invention from another perspective;
[0023] Figure 4 It is a cross-sectional view of the phacoemulsification needle with a sawtooth-like canine structure of the present invention;
[0024] Figure 5 yes Figure 4 Enlarged view of point B in the middle.
[0025] Illustration:
[0026] 1. Needle tube; 2. Base; 3. Clamping part; 4. Suction hole; 5. Canine teeth. DETAILED DESCRIPTION
[0027] The following specifically illustrates the implementation of the present invention in conjunction with the accompanying drawings. The accompanying drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of the present invention.
[0028] Reference Figures 1 to 5 A phacoemulsification needle with a serrated fang structure includes a needle tube 1, which is tubular. The needle tube 1 is tubular, and a clamping portion 3 is provided at one end of the needle tube 1. A plurality of fangs 5 are provided on the other end face of the needle tube 1. All the fangs 5 are arranged in a circle around the suction hole 4 of the needle tube 1 and form a serrated shape. Each fang 5 is arranged along the radial direction of the needle tube 1.
[0029] Reference Figure 1 、 Figure 3 and Figure 4The outer diameter of the needle tube 1 is 1.1 mm, and the wall thickness of the needle tube 1 is 0.1 mm. The clamping part 3 is coaxially arranged with the needle tube 1, and the outer diameter of the clamping part 3 is larger than the outer diameter of the needle tube 1. The clamping end of the needle tube 1 is also coaxially provided with a base 2. The clamping part 3 and the base 2 are sequentially arranged at the clamping end of the needle tube 1 from the outside to the inside. The outer diameter of the base 2 is larger than the outer diameter of the clamping part 3, so as to form a limiting step between the clamping part 3 and the base 2. The end of the base 2 away from the clamping part 3 is conical. The clamping part 3, the base 2 and the needle tube 1 are integrally formed of the same material. The suction hole 4 passes through the needle tube 1, the base 2 and the clamping part 3, so that the entire ultrasonic emulsification needle is tubular. In order to facilitate the installation of the emulsification needle, an external thread can also be provided on the clamping part 3.
[0030] Reference Figure 2 and Figure 5 The number of the canines 5 is preferably 12, the angle between two adjacent canines 5 is 30 degrees, each canine 5 is in the shape of a triangular prism, the depth a of each canine 5 is 0.3 mm, the penetration angle b of the canine 5 is 30 degrees, and the thickness of the canines 5 is 0.1 mm.
[0031] Reference Figures 1 to 5 Since P=F / S, where P represents pressure, F represents force, and S represents the area over which the pressure acts, when the force F remains unchanged and S decreases, the pressure will increase and the destructive force will increase. Therefore, the utility model designs the head of the emulsification needle to be serrated, reducing the contact area between the emulsification needle and the cataract, making the head of the emulsification needle sharper. When the ultrasonic emulsification needle is working, the 12 fangs 5 on the top of the needle contact the cataract in the form of line contact, quickly cutting the cataract into smaller, more uniform fragments, and sucking them away from the suction hole 4.
[0032] The ultrasonic emulsification needle with a sawtooth-shaped canine structure of the utility model has the following beneficial technical effects:
[0033] (1) The cutting is sharper and the cutting effect is better;
[0034] (2) Better adaptability;
[0035] (3) The cut pieces are smaller, more uniform and easier to be sucked away;
[0036] (4) Less pipe blockage, no turbulence, easier and safer surgery;
[0037] (5) Less heat is generated during surgery, leading to better surgical results;
[0038] (6) Patients recover faster and have better postoperative results.
[0039] The above disclosure is only a preferred embodiment of the present invention and cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention.
Claims
1. A phacoemulsification needle having a sawtooth-like canine structure, comprising a tubular needle tube, characterized in that: A clamping portion is provided at one end of the needle tube, and a plurality of fangs are provided on the other end surface of the needle tube. All the fangs are arranged in a circle around the suction hole of the needle tube and form a serrated shape, and each fang is arranged along the radial direction of the needle tube.
2. The ultrasonic emulsification needle with a sawtooth cusp structure according to claim 1, characterized in that: The depth a of the canine is 0.3 mm.
3. The phacoemulsification needle with a sawtooth-like canine structure according to claim 1, characterized in that: The included angle between two adjacent canines is 30 degrees.
4. The phacoemulsification needle with a sawtooth-like canine structure according to claim 1, characterized in that: Each of the canines is in the shape of a triangular prism, and the insertion angle b of the canine is 30 degrees.
5. The phacoemulsification needle with a sawtooth-shaped canine structure according to claim 1, characterized in that: The thickness of the canines is 0.1 mm.
6. The phacoemulsification needle with a sawtooth-like canine structure according to claim 1, characterized in that: The number of the fangs is 12, the outer diameter of the needle tube is 1.1 mm, and the wall thickness of the needle tube is 0.1 mm.
7. The phacoemulsification needle with a sawtooth-like canine structure according to claim 1, characterized in that: The clamping portion is coaxially arranged with the needle tube, and the outer diameter of the clamping portion is larger than the outer diameter of the needle tube.
8. The phacoemulsification needle with a sawtooth-like canine structure according to claim 1, characterized in that: The clamping end of the needle tube is also coaxially provided with a base. The clamping portion and the base are sequentially arranged on the clamping end of the needle tube from outside to inside. The outer diameter of the base is larger than the outer diameter of the clamping portion.
9. The phacoemulsification needle with a sawtooth-like canine structure according to claim 8, characterized in that: The clamping portion, the base and the needle tube are integrally formed, and the suction hole passes through the needle tube, the base and the clamping portion.
10. The phacoemulsification needle with a sawtooth-shaped canine structure according to claim 8, characterized in that: One end of the base away from the clamping portion is arranged in a conical shape.