Special operation injector for ophthalmology vitreous cavity medicine injection

Abstract

The utility model discloses a special surgical injector for ophthalmology vitreous cavity medicine injection, which comprises an injector, a protective shell is arranged at the lower part of the injector, and an injector shell is arranged on the outer side of the injector; handheld handles are fixedly connected to the two ends of the rear portion of the syringe shell, a push rod is arranged in the syringe, a first rubber ring is fixedly connected to the end, close to the front portion, of the push rod, a second rubber ring is fixedly connected to the end, close to the front portion, of the first rubber ring, and a rotating inner sleeve is arranged in the protection shell; the adjustable syringe needle type design is adopted, when people of different age groups need to be injected, injection can be accurately carried out on affected parts by adjusting the length of the syringe needle, the treatment effect is better, meanwhile, the probability of medical accidents is greatly reduced, and personnel losses are reduced.

Description

Technical Field

[0001] The utility model relates to the field of syringes, in particular to a surgical special syringe for ophthalmic intravitreal injection. Background Technique

[0002] A syringe is a medical device used to inject drugs, vaccines or other liquids into the human body subcutaneously, intramuscularly or intravenously. It usually consists of a hollow needle and a graduated barrel with a piston inside the barrel to push the liquid through the needle. The use of syringes requires strict adherence to aseptic operating principles to prevent infection and cross-contamination. Common types of syringes include disposable syringes and reusable syringes, and the latter require strict disinfection procedures. When using a syringe, an appropriate needle gauge and barrel capacity should be selected according to the need, and the safety and accuracy of the injection process should be ensured.

[0003] Intravitreal injection is an ophthalmic surgery mainly used to treat certain fundus diseases, such as age-related macular degeneration, diabetic retinopathy, etc. During the operation, the doctor will inject drugs into the vitreous cavity of the patient's eyeball, aiming to inhibit abnormal blood vessel growth and reduce retinal edema, thereby stabilizing or improving vision. The operation is usually performed under local anesthesia. After the operation, the patient needs to rest and observe according to the doctor's advice. There may be temporary blurred vision or discomfort, but these symptoms usually disappear gradually. The patient may need multiple injections to maintain the treatment effect.

[0004] In the existing technology, the surgical special syringe for general intravitreal injection does not have the function of adjusting the needle body length and protecting the needle body. The lengths of the injection needle bodies required by the personnel who need to perform the operation are often different, so a syringe with adjustable needle body length is very important. Content of the Utility Model

[0005] The purpose of the utility model is to provide a surgical special syringe for ophthalmic intravitreal injection, which solves the problems that the needle body length cannot be adjusted and the needle head protection is not rigorous enough in the existing technology.

[0006] To achieve the above purpose, a surgical special syringe for ophthalmic intravitreal injection is provided, including a syringe, a protective shell is arranged at the lower part of the syringe, and a syringe shell is arranged on the outer side of the syringe;

[0007] At the rear ends of both sides of the syringe housing, there are fixedly connected with hand-held handles. Inside the syringe, there is a push rod. At one end of the push rod close to the front, there is a fixedly connected first rubber ring. At one end of the first rubber ring close to the front, there is a fixedly connected second rubber ring. On the outer surface of the protective housing, there is a first scale mark. Inside the protective housing, there is a threaded ring. Inside the protective housing, there is a rotating inner sleeve, and the rotating inner sleeve is threadedly connected to the threaded ring. At one end of the rotating inner sleeve close to the front, there is a fixedly connected injection sheath. In the middle of the injection sheath, there is an inner opening. At the front end of the protective housing, there is a fixedly connected circular sheath.

[0008] According to the surgical special syringe for ophthalmic intravitreal injection described above, it is characterized in that: at one end of the push rod close to the rear, there is a fixedly connected pushing handle, and on the pushing handle, there is an anti-slip layer.

[0009] According to the surgical special syringe for ophthalmic intravitreal injection described above, it is characterized in that: on the outer surface of the syringe housing, there is a second scale mark, and at the front end of the syringe housing, there is a fixedly connected needle body mounting port.

[0010] According to the surgical special syringe for ophthalmic intravitreal injection described above, in the middle of the needle body mounting port, there is an injection needle, and on the outer surface of the injection needle, there is an anti-bacterial protective sheath.

[0011] According to the surgical special syringe for ophthalmic intravitreal injection described above, at both ends inside the rotating inner sleeve, there are provided limiting grooves, which are mated with the limiting blocks on the syringe housing.

[0012] According to the surgical special syringe for ophthalmic intravitreal injection described above, the outer surfaces of the hand-held handle and the pushing handle both have anti-slip layers, and the anti-slip layers are formed by convex blocks and concave blocks.

[0013] According to the surgical special syringe for ophthalmic intravitreal injection described above, the unit adopted by the first scale mark on the outer surface of the protective housing is cm, and the unit adopted by the second scale mark on the outer surface of the syringe housing is ml.

[0014] Advantageous effects

[0015] Compared with the prior art, the advantageous effects of the present utility model are: adopting an adjustable needle design, when it is necessary to inject different age groups of people, the needle length can be adjusted to accurately inject towards the affected area, not only the treatment effect is better, but also the probability of medical accidents is greatly reduced, reducing personnel losses;

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: A protective housing is adopted to protect the needle body, which can reduce the infection of the needle by the external environment before injection, reduce the probability of bacteria on the needle, protect the safety of the patient, and improve the treatment effect.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 is a schematic diagram of the overall structure of a surgical syringe dedicated to ophthalmic intravitreal injection of the present utility model;

[0020] Figure 2 is a schematic diagram of the protective housing structure of a surgical syringe dedicated to ophthalmic intravitreal injection of the present utility model;

[0021] Figure 3 is a schematic diagram of the syringe structure of a surgical syringe dedicated to ophthalmic intravitreal injection of the present utility model;

[0022] Figure 4 is a top view of the overall structure of a surgical syringe dedicated to ophthalmic intravitreal injection of the present utility model.

[0023] In the figure: 1. Syringe; 101. Hand-held handle; 102. Pusher rod; 103. Push handle; 104. First rubber ring; 105. Second rubber ring; 106. Anti-slip layer; 2. Protective housing; 201. First scale mark; 202. Threaded ring; 203. Rotating inner sleeve; 204. Injection sheath; 205. Inner opening; 206. Circular sheath; 3. Syringe housing; 301. Second scale mark; 302. Needle body mounting port; 303. Injection needle; 304. Anti-bacterial protective cover; 4. Limit groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4, an embodiment of the present utility model provides a technical solution: a surgical syringe dedicated to ophthalmic intravitreal injection, including a syringe 1, a protective housing 2 is arranged at the lower part of the syringe 1, and the protective housing 2 has the function of protecting the internal structure. A syringe housing 3 is arranged on the outer side of the syringe 1;

[0026] At both ends of the rear of the syringe housing 3, there are fixedly connected with hand-held handles 101. The hand-held handles 101 have the function of stabilizing the stability during use. A push rod 102 is arranged inside the syringe 1. One end of the push rod 102 close to the front is fixedly connected with a first rubber ring 104, and one end of the first rubber ring 104 close to the front is fixedly connected with a second rubber ring 105. When the push rod 102 moves, the first rubber ring 104 and the second rubber ring 105 in front of the push rod can perform the functions of extraction and injection. A first scale mark 201 is arranged on the outer surface of the protective housing 2, a threaded ring 202 is arranged inside the protective housing 2, and a rotating inner sleeve 203 is arranged inside the protective housing 2. The rotating inner sleeve 203 is threadedly connected to the threaded ring 202. When the protective housing 2 rotates, the rotating inner sleeve 203 will move back and forth under the action of the thread. One end of the rotating inner sleeve 203 close to the front is fixedly connected with an injection sheath 204. An inner opening 205 is provided in the middle of the injection sheath 204, and the inner opening 205 is the place where the needle passes through. The front end of the protective housing 2 is fixedly connected with a circular sheath 206;

[0027] One end of the push rod 102 close to the rear is fixedly connected with a push handle 103. An anti-slip layer 106 is arranged on the push handle 103, and the protective layer 106 has an anti-slip function, effectively protecting medical staff from slipping during injection;

[0028] A second scale mark 301 is arranged on the outer surface of the syringe housing 3, and a needle body mounting port 302 is fixedly connected to the front end of the syringe housing 3. The second scale mark 301 can control the amount of medicine;

[0029] An injection needle 303 is arranged in the middle of the needle body mounting port 302. An anti-bacterial protective cover 304 is arranged on the outer surface of the injection needle 303. The anti-bacterial protective cover 304 can protect the injection needle 303 from bacterial infection and other situations, preventing medical accidents;

[0030] Limit grooves 4 are provided at both ends inside the rotating inner sleeve 203 and are matched with the limit blocks on the syringe housing 3. The limit grooves 4 can strengthen the stability between the protective outer sleeve 2 and the syringe 1;

[0031] The outer surface of the hand-held handle 101 and the push handle 103 both have an anti-slip layer 106, and the anti-slip layer 106 is formed by convex blocks and concave blocks;

[0032] The unit adopted by the first scale mark 201 on the outer surface of the protective shell 2 is cm, and the unit adopted by the second scale mark 301 on the outer surface of the syringe shell 3 is ml. The units of the two are different. The former controls the length of the needle, and the latter controls the amount of medicine used.

[0033] Working principle: When the device is in use, first remove the antibacterial protective cover 304, then put the syringe 1 into the protective shell 2. The limiting groove 4 on the protective shell 2 can enhance the stability of the overall structure. After fixation, by rotating the protective shell 2, the inner rotating sleeve 203 moves back and forth under the action of the thread ring 202. The injection needle 303 passes through the circular sheath 206 and then sucks the medicine into the syringe 1 through the push rod 102. When injecting, the length of the injection needle 303 can be determined by the first scale mark 201, which is convenient for accurate injection of people of different ages.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A surgical syringe specifically for ophthalmic intravitreal injection, comprising a syringe (1), characterized in that, A protective housing (2) is provided at the lower part of the syringe (1), and a syringe housing (3) is provided on the outer side of the syringe (1); At both rear ends of the syringe housing (3), a hand-held handle (101) is fixedly connected. A push rod (102) is provided inside the syringe (1). One end of the push rod (102) close to the front is fixedly connected with a first rubber ring (104). One end of the first rubber ring (104) close to the front is fixedly connected with a second rubber ring (105). A first scale mark (201) is provided on the outer surface of the protective housing (2). A threaded ring (202) is provided inside the protective housing (2). A rotating inner sleeve (203) is provided inside the protective housing (2), and the rotating inner sleeve (203) is threadedly connected to the threaded ring (202). One end of the rotating inner sleeve (203) close to the front is fixedly connected with an injection sheath (204). An inner opening (205) is provided in the middle of the injection sheath (204). A circular sheath (206) is fixedly connected to the front end of the protective housing (2).

2. The surgical syringe dedicated to ophthalmic intravitreal injection as described in claim 1, characterized in that: One end of the push rod (102) close to the rear is fixedly connected with a push handle (103), and an anti-slip layer (106) is provided on the push handle (103).

3. The surgical syringe dedicated to ophthalmic intravitreal injection as claimed in claim 1, wherein: A second scale mark (301) is provided on the outer surface of the syringe housing (3), and a needle body mounting port (302) is fixedly connected to the front end of the syringe housing (3).

4. The surgical syringe dedicated to ophthalmic intravitreal injection as claimed in claim 3, wherein: An injection needle (303) is provided in the middle of the needle body mounting port (302), and an anti-bacterial protective sleeve (304) is provided on the outer surface of the injection needle (303).

5. The surgical syringe dedicated to ophthalmic intravitreal injection as claimed in claim 1, wherein: Limit slots (4) are provided at both inner ends of the rotating inner sleeve (203), and are mated with the limit blocks on the syringe housing (3).

6. The surgical syringe dedicated to ophthalmic intravitreal injection as claimed in claim 1, wherein: The outer surface of the hand-held handle (101) and the push handle (103) both have an anti-slip layer (106), and the anti-slip layer (106) is formed by protrusions and recesses.

7. The surgical syringe dedicated to ophthalmic intravitreal injection as claimed in claim 1, wherein: The unit of the first scale mark (201) on the outer surface of the protective housing (2) is cm, and the unit of the second scale mark (301) on the outer surface of the syringe housing (3) is ml.

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